阅读说明：本技术 双座智能电动婴儿车 (Double-seat intelligent electric baby carriage ) 是由 不公告发明人 于 2020-11-17 设计创作，主要内容包括：本发明公开双座智能电动婴儿车,包括第一座椅、第二座椅、车架机构、底盘机构、扶手架,第一座椅和第二座椅均可自动调整俯仰倾角,以使两个座椅可始终保持水平状态,两个座椅均可为婴幼儿提供一个舒适的乘坐和卧躺空间,第一座椅的靠背倾斜角度可调整,其上的桌板机构可展开和收纳,第二座椅的坐板高度可调节,车架机构与两个座椅可通过模块化的快插结构进行连接,并可实现两个座椅高度的调节和周向旋转,也能实现两个座椅的横向摇篮功能,车架机构、扶手架均与底盘机构紧固连接,底盘机构设有的四个车轮均为独立悬挂,以提高减震性能和通过性能,智能化的操控系统不仅能为婴幼儿播放摇篮曲,也使家长能够通过扶手架轻松地实现对婴儿车的操控。(The invention discloses a double-seat intelligent electric baby carriage, which comprises a first seat, a second seat, a frame mechanism, a chassis mechanism and an armrest frame, wherein the pitching inclination angle of the first seat and the second seat can be automatically adjusted so that the two seats can be always kept in a horizontal state, the two seats can provide a comfortable sitting and lying space for infants, the inclination angle of a backrest of the first seat can be adjusted, a table plate mechanism on the first seat can be unfolded and stored, the height of a seat plate of the second seat can be adjusted, the frame mechanism and the two seats can be connected through a modularized quick insertion structure, the height adjustment and circumferential rotation of the two seats can be realized, the transverse cradle function of the two seats can also be realized, the frame mechanism and the armrest frame are fixedly connected with the chassis mechanism, four wheels arranged on the chassis mechanism are independently suspended so as to improve the shock absorption performance and the passing performance, an intelligent control system can not only play cradle curves for infants, and the parents can easily realize the control of the baby carriage through the armrest frame.)

1. Electronic perambulator of two seats intelligence, including first seat (1.1), second seat (1.2), frame mechanism (2), chassis mechanism (3), handrail frame (4), its characterized in that: the first seat (1.1) and the second seat (1.2) can automatically adjust the pitching inclination angle so that the two seats can always keep horizontal when the baby carriage ascends and descends, the two seats can provide a comfortable sitting and lying space for the baby, a flat plane can be formed inside the two seats to facilitate the baby to lie and play, the backrest inclination angle of the first seat (1.1) can be adjusted according to the preference of the baby, a table board mechanism on the first seat can be taken as two side guard boards after being stored, toys and food can be placed for the baby after being unfolded, the seat board height of the second seat (1.2) can be adjusted according to the body shape of the baby, the upper end of the frame mechanism (2) can be connected and separated with the first seat (1.1) and the second seat (1.2) through a modular quick-insertion structure, the frame mechanism (2) can adjust the heights of the two seats through a telescopic structure, and can also realize the circumferential rotation of the two seats, increase the interest that the infant took, also can realize the horizontal cradle function of first seat (1.1) and second seat (1.2) simultaneously according to the pendulum effect, frame mechanism (2) lower extreme and chassis mechanism (3) fastening connection, handrail frame (4) lower extreme and chassis mechanism (3) fastening connection, four wheels that chassis mechanism (3) were equipped with are independent suspension, with the damping performance and the through capacity that improve chassis mechanism (3), provide more comfortable riding environment for the infant, intelligent control system can not only play the cradle song for the infant, also make the head of a family can easily realize controlling the perambulator through handrail frame (4).

2. The dual seat intelligent electric stroller of claim 1, wherein: the first seat (1.1) comprises a support frame (101), a sliding plate (102), a seat plate (103), a right sliding block (106), a right connecting rod (107), a right connecting rod (108), a right three connecting rod (109), a left sliding block (110), a first slot frame (111), a first button (112), a first hook (115), a right hook (116), a right sliding frame (117), a right plate connecting rod (118), a first hook spring (119), a first set screw (120), a right spring sheet (121), a left hook (122), a left sliding frame (123), a left plate connecting rod (124), a left spring sheet (125), a right cover (126), a left cover (127), a turnover plate (133), a left three connecting rod (134), a left two connecting rod (135), a left connecting rod (136), a first seat inclinometer (137), a table plate mechanism and a seat plate driving mechanism, wherein the support frame (101) is a main body support structure of the first seat (1.1), the two sides of the supporting frame (101) are respectively provided with an upper limiting column (101.2), a lower limiting column (101.3) and a protective plate, the lower end of the supporting frame is provided with a horizontal supporting plate (101.1), the upper side of the supporting plate (101.1) and the lower side of the sliding plate (102) form a moving pair through a guide rail sliding block set, the lower side of the seat plate (103) and the upper side of the sliding plate (102) form a moving pair through a guide rail sliding block set, the upper side of the seat plate (103) is provided with four upright posts, a transverse handrail is arranged between the two upright posts at the front end, the two upright posts at the rear end are respectively provided with a left guide rail (103.1) and a right guide rail (103.2), the left sliding block (110) can slide on the left guide rail (103.1), the lower end of a left connecting rod (136) and the left side of the turning plate (133) form a rotating pair, the upper end of the left connecting rod (110) and the left end of a left connecting rod (135), the right sliding block (106) can slide on the right guide rail (103.2), the lower end of the right connecting rod (107) and the right side of the turning plate (133) form a revolute pair, the upper end of the right connecting rod and the left ends of the right sliding block (106) and the right two connecting rods (108) form a revolute pair, the lower end of the right three connecting rod (109) and the right side of the turning plate (133) form a revolute pair, and the upper end of the right three connecting rod and the right end of the right two connecting rods (108) form; the left side guardrail is formed by the left first connecting rod (136), the left second connecting rod (135) and the left third connecting rod (134), the right side guardrail is formed by the right first connecting rod (107), the right second connecting rod (108) and the right third connecting rod (109), and the guardrails on the two sides are used for protecting infants from falling from the first seat (1.1);

two guide rails are arranged on two sides of the rear end of the support frame (101), the left sliding frame (123) can slide on the left guide rail, the left side of the left sliding frame (123) is provided with an upper sliding frame limiting column (123.1) and a lower sliding frame limiting column (123.2), the rear end of the left plate connecting rod (124) is provided with a shifting rod (124.1) and forms a revolute pair with the left sliding frame (123), a left clamping hook (122) is arranged at the left lower end of the rear side of the support frame (101) and forms a revolute pair, the upper end of the left clamping hook (122) is positioned at the rear side of the shifting rod (124.1), a left elastic sheet (125) is arranged between the lower end of the left clamping hook (122) and the support frame (101), the left clamping hook (122) can clamp the left sliding frame (123) positioned at the initial position of the lower end under the elastic action of the left elastic sheet (125) and prevent the left sliding frame; the right sliding frame (117) can slide on a guide rail on the right side of the rear end of the support frame (101), the right side of the right sliding frame (117) is provided with an upper sliding frame limiting column and a lower sliding frame limiting column, the rear end of the right plate connecting rod (118) is provided with a shifting rod and forms a revolute pair with the right sliding frame (117), the right clamping hook (116) is arranged at the right lower end of the rear side of the support frame (101) and forms a revolute pair, the upper end of the right clamping hook (116) is located at the rear side of the shifting rod of the right plate connecting rod (118), a right elastic sheet (121) is arranged between the lower end of the right clamping hook (116) and the support frame (101), the right clamping hook (116) can clamp the right sliding frame (117) located at the initial position of the lower end under the elastic action of the right elastic sheet (121) and prevent the right;

in an initial state, the seat plate (103) and the turning plate (133) can form a plane, so that the infant can conveniently lie down and play, and at the moment, the left sliding frame (123) and the right sliding frame (117) are positioned at the lowest end positions and are respectively clamped by the left clamping hook (122) and the right clamping hook (116);

when the backrest needs to be lifted, the seat driving mechanism is operated to enable the seat (103) to move backwards, the turning plate (133) also moves backwards, the rear end of the turning plate (133) pushes the left plate connecting rod (124) and the right plate connecting rod (118) to rotate clockwise until the left plate connecting rod (124) contacts the upper limiting column (123.1) of the sliding frame, the right plate connecting rod (118) contacts the upper limiting column of the sliding frame (117), in the process, the deflector rod (124.1) of the left plate connecting rod (124) and the deflector rod of the right plate connecting rod (118) respectively pull the upper end of the left clamping hook (122) and the upper end of the right clamping hook (116) backwards to enable the left plate connecting rod (124) and the right plate connecting rod (118) to rotate clockwise and release clamping of the left sliding frame (123) and the right sliding frame (117), then the seat (103) continues to move backwards, and the rear end of the turning plate (133) respectively pushes the left sliding frame (123) and the right sliding frame (117) to slide upwards through the left plate connecting rod, the movement of the seat plate (103) is stopped until the turning plate (133) reaches a proper inclination angle, and the turning plate (133) can keep the adjusted inclination angle, so that the infant can lean on the seat plate comfortably; when the inclination angle of the turning plate (133) needs to be relieved, the seat driving mechanism is operated to enable the seat (103) to move forwards until the seat (103) and the turning plate (133) form a plane;

the first slot frame (111) is fastened and installed at the upper end of the rear side of the support frame (101) through screws, a rectangular groove is arranged at the upper end of the right side of the first slot frame, two rectangular jacks are arranged at the upper end of the rectangular groove, a hook cavity and a transverse button hole are arranged inside the lower end of the first slot frame (111), a first hook (115) is arranged in the hook cavity, the hook can slide up and down in the hook cavity, the upper end of the first hook (115) is provided with an inclined plane structure, the middle position of the first hook is provided with a rectangular opening, the lower side of the first button (112) is provided with an inclined plane, the first button (112) penetrates through the rectangular opening in the middle of the first hook (115) and is installed in a button hole of the first slot frame (111), the lower end of the first slot frame (111) is provided with two threaded holes communicated with the hook cavity, the two first set screws (120) are respectively installed in the two threaded holes, and the two first hook springs (119) are respectively arranged between the two first set screws (120) and the first hook (115);

in an initial state, under the action of the elastic force of a first hook spring (119), a first hook (115) is positioned at the upper end of a hook cavity, an inclined plane structure at the upper end of the first hook (115) extends into a rectangular groove at the upper end of the right side of a first slot frame (111), and an inclined plane at the lower side of a first button (112) is pressed leftwards to push the first hook (115) to move downwards, so that the inclined plane structure at the upper end of the first hook (115) retracts into the hook cavity; after the first button (112) is released from being pressed, the first hook (115) is restored to the initial position under the action of the elastic force of the first hook spring (119);

the first set screw (120) and the first slot frame (111) form thread pair connection, and the compression amount of the first hook spring (119) can be changed by adjusting the position of the first set screw (120), so that the pressing and rebounding force of the first button (112) can be adjusted;

the table plate mechanism comprises a right inner plate (104), a right outer plate (105), a left inner plate (114) and a left outer plate (113), a first baffle groove (103.3) and a second baffle groove (103.4) are arranged between two upright columns on the left side of the seat plate (103), the upper end of the left outer plate (113) and the upper ends of the two upright columns on the left side form a revolute pair, the upper end of the left inner plate (114) is arranged in the left outer plate (113) and forms a revolute pair, and the lower end of the left inner plate (114) is provided with a left plate handle (114.1) and a left plate hook (114.2); a third baffle groove (103.5) and a fourth baffle groove (103.6) are arranged between two upright posts on the right side of the seat plate (103), the upper end of a right outer plate (105) and the upper ends of the two upright posts on the right side form a revolute pair, the upper end of a right inner plate (104) is arranged in the right outer plate (105) and forms a revolute pair, and the lower end of the right inner plate (104) is provided with a right plate handle (104.1) and a right plate hanging rod (104.2);

in an initial state, the left outer plate (113) is in a vertical state under the action of gravity, the left inner plate (114) is contracted inside the left outer plate (113), and the lower end of the left inner plate is clamped into the first blocking groove (103.3) and the second blocking groove (103.4), so that the left inner plate (114) and the left outer plate (113) cannot swing left and right to form a guard plate on the left side of the first seat (1.1); the right outer plate (105) is in a vertical state under the action of gravity, the right inner plate (104) is contracted inside the right outer plate (105), and the lower end of the right inner plate is clamped into the third blocking groove (103.5) and the fourth blocking groove (103.6), so that the right inner plate (104) and the right outer plate (105) cannot swing left and right to form a guard plate on the right side of the first seat (1.1);

when the desk plate needs to be used, after the left plate handle (114.1) is pulled upwards to separate the lower end of the left inner plate (114) from the first blocking groove (103.3) and the second blocking groove (103.4), the left inner plate (114) and the left outer plate (113) are turned upwards, the left inner plate (114) is pulled outwards, meanwhile, the right plate handle (104.1) is pulled upwards to separate the lower end of the right inner plate (104) from the third blocking groove (103.5) and the fourth blocking groove (103.6), the right inner plate (104) and the right outer plate (105) are turned upwards, the right inner plate (104) is pulled outwards, after the left plate hook (114.2) hooks the right plate hanging rod (104.2), the left inner plate (114) and the right inner plate (104) are placed horizontally, and the left inner plate (114) and the right inner plate (104) are mutually propped, so that a desk plate formed by the left inner plate (114), the left outer plate (113), the right inner plate (104) and the right outer plate (105) is kept horizontally; when the table board mechanism needs to be stored, the connecting position of the left inner board (114) and the right inner board (104) is moved upwards, then the left board hook (114.2) is released from the right board hanging rod (104.2), and the left inner board (114), the left outer board (113), the right inner board (104) and the right outer board (105) are restored to the initial state, so that the storage process of the table board mechanism can be completed;

the seat plate driving mechanism comprises a first guide wheel (102.1), a second guide wheel (102.2), a third guide wheel (102.3), a fourth guide wheel (102.4), a lead screw (128), a hand wheel (128.1), a first rope (129), a second rope (130), a third rope (131) and a fourth rope (132), the fourth guide wheel (102.4) is installed on the left side of the front end of the sliding plate (102) and forms a revolute pair, the first guide wheel (102.1) is installed on the right side and forms a revolute pair, the second guide wheel (102.2) and the third guide wheel (102.3) are installed on the rear end of the sliding plate (102) and form a revolute pair, a screw hole (102.5) is formed in the middle position of the rear end of the sliding plate (102), the lead screw (128) is installed on the middle position of the rear end of the supporting frame (101) and forms a revolute pair, a threaded structure at the front end of the lead screw (128) is matched with the screw hole (102.5) to form a threaded pair;

the upper end of a first rope (129) is fixedly connected with the rear end of a seat plate (103), the lower end of the first rope winds around a first guide wheel (102.1) and then is fixedly connected with the rear end of a support frame (101), the upper end of a second rope (130) winds around a second guide wheel (102.2) and then is fixedly connected with the front end of the support frame (101), the upper end of a third rope (131) winds around a third guide wheel (102.3) and then is fixedly connected with the front end of the support frame (101), the upper end of a fourth rope (132) winds around the rear end of the seat plate (103) and then is fixedly connected with the rear end of the support frame (101), and the lower end of the fourth rope winds around a fourth guide wheel (102.4) and then is fixedly connected with the rear end of the support frame (101);

the hand wheel (128.1) is rotated clockwise, the lead screw (128) drives the sliding plate (102) to move backwards through the screw hole (102.5), and the upper ends of the second rope (130) and the third rope (131) move backwards under the pushing of the second guide wheel (102.2) and the third guide wheel (102.3), so that the seat plate (103) can move backwards;

the hand wheel (128.1) is rotated anticlockwise, the lead screw (128) drives the sliding plate (102) to move forwards through the screw hole (102.5), and the upper ends of the first rope (129) and the fourth rope (132) move forwards under the pushing of the first guide wheel (102.1) and the fourth guide wheel (102.4), so that the seat plate (103) can move forwards;

the screw pair formed by the lead screw (128) and the screw hole (102.5) has a self-locking function, so that the movement of the sliding plate (102) can be controlled only by the rotation of the hand wheel (128.1), and the winding connection structure of the first rope (129), the second rope (130), the third rope (131) and the fourth rope (132) can ensure that the movement of the seat plate (103) can be controlled only by the movement of the sliding plate (102) and can not move spontaneously.

3. The dual seat intelligent electric stroller of claim 1, wherein: the second seat (1.2) comprises a frame (1001), a backrest (1002), a turnover plate (1003), a connecting plate (1004), a pressure spring screw (1005), a bead pushing spring (1006), a bead pushing spring (1007), a spring leaf (1008), a top hook (1009), a positioning frame (1010), a second slot frame (1011), a second button (1012), a second hook (1013), a second hook spring (1014), a second set screw (1015) and a second seat inclinometer (1016), wherein the frame (1001) is a main body supporting structure of the second seat (1.2), mesh enclosure barriers with good ventilation effects are arranged on two sides of the frame (1001), a transverse handrail and a vertical baffle are arranged at the front end of the frame (1001) and used for protecting the safety of infants, two rectangular square holes with round corners are longitudinally arranged on the bottom side of the frame (1001), and the two connecting plates (1004), the turnover plate (1003) and the frame (1001) form a rotating pair, so that the turnover plate (1003) and the frame (1001) form rotating connection, two guide rods (1001.2) are arranged in the rear end of the frame (1001), two guide holes arranged on the rear side of the backrest (1002) are matched with the two guide rods (1001.2) to ensure that the backrest (1002) can slide up and down relative to the frame (1001), and the shape and the size of a seat plate (1002.1) arranged at the bottom end of the backrest (1002) are the same as those of a rectangular square hole at the rear end of the bottom side of the frame (1001);

in an initial state, the turning plate (1003) is turned forwards to cover the rectangular square hole in the front end of the frame (1001), the backrest (1002) is located at the lowest position, so that the seat plate (1002.1) covers the rectangular square hole in the rear end of the frame (1001), and the bottom of the second seat (1.2) forms a flat plane for an infant to lie down and play;

the second slot frame (1011) is fixedly connected with the upper end of the rear side of the frame (1001) through screws, a rectangular groove is arranged at the upper end of the right side of the second slot frame (1011), two rectangular insertion holes are arranged at the upper end of the rectangular groove, a hook cavity and a transverse button hole are arranged inside the lower end of the second slot frame (1011), the second hook (1013) is arranged in the hook cavity, the hook can slide up and down in the hook cavity, the upper end of the second hook (1013) is provided with a slope structure, the middle position of the second hook is provided with a rectangular opening, the lower side of the second button (1012) is provided with a slope, the second button (1012) passes through the rectangular opening in the middle of the second hook (1013) and is arranged in a button hole of the second slot frame (1011), the lower end of the second slot frame (1011) is provided with two threaded holes communicated with the hook cavity, the two second set screws (1015) are respectively arranged in the two threaded holes, and the two second hook springs (1014) are respectively arranged between the two second set screws (1015) and the second hook (1013);

in an initial state, under the action of the elastic force of a second hook spring (1014), a second hook (1013) is positioned at the upper end of a hook cavity, the inclined plane structure at the upper end of the second hook (1013) extends into a rectangular groove at the upper end of the right side of a second slot rack (1011), and the inclined plane structure at the lower side of a second button (1012) is pressed leftwards to push the second hook (1013) to move downwards so that the inclined plane structure at the upper end of the second hook (1013) retracts into the hook cavity; after the pressing of the second button (1012) is released, the second hook (1013) returns to the initial position under the action of the elastic force of the second hook spring (1014);

the second set screw (1015) and the second slot frame (1011) form a thread pair connection, and the compression amount of the second hook spring (1014) can be changed by adjusting the position of the second set screw (1015), so that the pressing and rebounding force of the second button (1012) can be adjusted;

the rear end of the frame (1001) is provided with a cavity structure, the lower end of the front side of the cavity structure is provided with a rotatable lower blocking wheel (1001.1), the rear side of the cavity structure is longitudinally provided with a ratchet bar (1001.3), the upper end of the ratchet bar (1001.3) is provided with a rotatable upper blocking wheel (1001.4), the positioning frame (1010) is fixedly connected with the backrest (1002) through screws, the front side of the top hook (1009) is provided with a front top surface (1009.1), the lower end of the rear side is provided with a rear top surface (1009.2), the top hook (1009) is arranged in the positioning frame (1010) and forms a revolute pair, the two spring pieces (1008) are arranged between the positioning frame (1010) and the top hook (1009), the top hook (1009) has a counterclockwise rotation tendency under the elastic action of the spring pieces (1008), the top end of the positioning frame (1010) is provided with a threaded hole, the top bead (1007) is arranged at the lower end of the threaded hole, a ball ejecting spring (1006) is arranged between the pressure spring screw (1005) and the ball ejecting (1007), the compression amount of the ball ejecting spring (1006) can be changed by adjusting the position of the pressure spring screw (1005) in the threaded hole, so that the resilience force of the ball ejecting (1007) is adjusted, and the lower end of the top hook (1009) can be meshed with the teeth of the ratchet (1001.3), so that the positioning of the height position of the backrest (1002) is realized;

in an initial state, under the action of the elasticity of the spring piece (1008), the top end of the top hook (1009) is positioned on the left side of the top bead (1007); when the height of the seat plate (1002.1) needs to be adjusted, the backrest (1002) is pulled upwards, the lower end of the top hook (1009) can jump from bottom to top between teeth of the ratchet rack (1001.3), the upper end of the top hook (1009) is always positioned in the left area of the top bead (1007) in the process, the backrest (1002) stops being pulled upwards after the seat plate (1002.1) moves to a proper height position, the lower end of the top hook (1009) is clamped between the teeth of the corresponding ratchet rack (1001.3) and cannot move downwards, and therefore the height adjustment and positioning of the seat plate (1002.1) are completed;

when the height of the seat plate (1002.1) needs to be lowered, the backrest (1002) is pulled upwards to the highest position, in the process, the front top surface (1009.1) of the top hook (1009) moves upwards and contacts the upper baffle wheel (1001.4), under the pushing of the upper baffle wheel (1001.4), the top hook (1009) rotates clockwise to enable the upper end of the top hook to be compressed and cross the top bead (1007) to reach the right side interval of the top bead (1007), under the blocking action of the top bead (1007), the upper end of the top hook (1009) cannot spontaneously cross the top bead (1007) to reach the left side interval, at the moment, the lower end of the top hook (1009) is disengaged from the ratchet rack (1001.3), so that the seat plate (1002.1) can smoothly slide downwards, when the seat plate (1002.1) slides to the lowest end position, the lower baffle wheel (1001.1) can prop against the rear top surface (1009.2) of the top hook (1009), under the pushing action of the lower baffle wheel (1001.1), the top hook (1009) rotates anticlockwise, the upper end of the top hook compresses and the top bead reaches the left side interval (1007), thereby restoring the initial state and continuing to adjust the seat plate (1002.1) to the proper height.

4. The dual seat intelligent electric stroller of claim 1, wherein: the frame mechanism (2) comprises a fixed seat (201), a direct drive motor (202), a second support rod (203), a second swing rod (204), a second cradle inserted bar (205), a second inserted bar spring (206), a second locking wrench (207), a first locking wrench (208), a first inserted bar spring (209), a first cradle inserted bar (210), a first pressure bar (211), a second electric push rod (212), a locking sleeve (213), an inner rod (214), a first horn (215.1), a second horn (215.2), an outer rod (216), a first swing rod (217), a first support rod (218), a second pressure bar (219), a first electric push rod (220) and an air pressure rod (221), wherein the left side of the first support rod (218) is of a rectangular plate structure, the upper end of the rectangular plate structure is provided with two inserted plates (218.1), the upper end of the first support rod (218) and the left end of the first swing rod (217) form a revolute pair, the first electric push rod (220) is arranged between the lower end of the first support rod (218) and the lower end of the first swing rod (217), the first cradle insertion rod (210) is coaxially arranged in the stepped circular hole to form a moving pair, a first insertion rod spring (209) is arranged between the upper end of the outer rod (216) and the first cradle insertion rod (210), and the lower end of a first locking wrench (208) and the upper end of the first cradle insertion rod (210) form a rotating pair; the right side of the second supporting rod (203) is of a rectangular plate structure, the upper end of the rectangular plate structure is provided with two inserting plates (203.1), the upper end of the second supporting rod (203) and the right end of the second swing rod (204) form a revolute pair, a second electric push rod (212) is arranged between the lower end of the second supporting rod (203) and the lower end of the second swing rod (204), the upper end of the second swing rod (204) and the upper end of the second cradle insertion rod (205) form a moving pair, a second insertion rod spring (206) is arranged between the upper end of the outer rod (216) and the second cradle insertion rod (205), and the lower end of the second locking wrench (207) and the upper end of the second cradle insertion rod (205) form a rotating pair;

the left rectangular plate structure of the first support rod (218) can be embedded into the rectangular groove of the first slot frame (111), two insert plates (218.1) at the upper end of the rectangular plate structure are inserted into two rectangular insert holes at the upper end of the rectangular groove of the first slot frame (111), and the first hook (115) can hook the lower edge of the rectangular plate structure, so that the modular connection of the first seat (1.1) and the frame mechanism (2) is realized; the first hook (115) can be retracted by pressing the first button (112), so that the connection between the first seat (1.1) and the frame mechanism (2) can be released; the connection principle of the second seat (1.2) and the frame mechanism (2) through the second support rod (203) is the same as that described above;

when the cradle is in an initial state, the first locking wrench (208) is in a vertical state, the first cradle inserted link (210) is downwards inserted into the round hole on the upper side of the round shaft structure at the right end of the first swing link (217) under the action of the elastic force of the first inserted link spring (209) so as to lock the cradle function of the first seat (1.1), and after the first locking wrench (208) is forwards pulled to a horizontal state, the first cradle inserted link (210) upwards moves and is separated from and kept in the round hole on the upper side of the round shaft structure at the right end of the first swing link (217), so that the cradle function of the first seat (1.1) can be recovered;

in an initial state, the second locking wrench (207) is in a vertical state, the second cradle inserted link (205) is downwards inserted into the round hole on the upper side of the round shaft structure at the left end of the second swing link (204) under the action of the elastic force of the second inserted link spring (206), so that the cradle function of the second seat (1.2) is locked, and after the second locking wrench (207) is pulled backwards to a horizontal state, the second cradle inserted link (205) upwards moves and is separated from and kept in the round hole on the upper side of the round shaft structure at the left end of the second swing link (204), so that the cradle function of the second seat (1.2) can be recovered;

the inner rod (214) is arranged inside the outer rod (216), the inner rod and the outer rod form a sliding pair, a vent valve switch is arranged at the top end of the air pressure rod (221), the air pressure rod (221) can be extended by pressing the vent valve switch, the lower end of the air pressure rod (221) is arranged at the lower end inside the inner rod (214), the upper end of the air pressure rod is arranged at the upper end inside the outer rod (216), the outer rod (216) is provided with a front long hole (216.1) and a rear long hole (216.2), the left side of the first pressure rod (211) is provided with a first pressure plate (211.1), the rear end of the first pressure rod and the inner rod (214) form a rotating pair, the front end of the first pressure rod can swing up and down in the front long hole (216.1), the right side of the second pressure rod (219) is provided with a second pressure plate (219.;

when the first seat (1.1) and the second seat (1.2) are in an unloaded state, the first pressure lever (211) or the second pressure lever (219) is pressed downwards to enable the first pressure plate (211.1) or the second pressure plate (219.1) to press downwards a vent valve switch at the top end of the air pressure rod (221), the air pressure rod (221) can be freely extended, the outer rod (216) moves upwards, and therefore the first seat (1.1) and the second seat (1.2) are lifted;

when the first seat (1.1) and the second seat (1.2) are in an unloaded state, the first pressure lever (211) or the second pressure lever (219) is pressed downwards, the outer lever (216) is pressed downwards at the same time, the air pressure rod (221) can be shortened, the first pressure lever (211) and the second pressure lever (219) are released, the length of the air pressure rod (221) is locked, and therefore the height of the first seat (1.1) and the height of the second seat (1.2) are reduced;

the lower end of the inner rod (214) forms a revolute pair with the fixed seat (201) through two deep groove ball bearings and a thrust ball bearing, a second spline (214.1) is arranged at the position close to the lower end of the inner rod (214), the left side of each tooth of the second spline (214.1) is of a flat structure, the lower half part of the right side is provided with a bulge, the top end of each bulge is provided with a groove (214.2), the upper end inside the locking sleeve (213) is provided with an inner upper spline (213.2), the right side of the lower end of each tooth of the inner upper spline (213.2) is provided with a convex block (213.3), the top end of the fixed seat (201) is provided with a first spline (201.1), the locking sleeve (213) and the lower end of the inner rod (214) are coaxially installed, the inner upper spline (213.2) and the second spline (214.1) are installed in a matched mode, the locking sleeve (213) can move and rotate relative to the inner rod (214) up and down, namely, the locking sleeve (213), the lower end in the locking sleeve (213) is provided with an inner lower spline (213.1), and the inner lower spline (213.1) can be matched and separated with the first spline (201.1);

when the inner rod (214) and the fixed seat (201) need to be locked to rotate relatively, the locking sleeve (213) is moved upwards to the highest position, then the locking sleeve (213) is rotated anticlockwise, each key tooth of the inner upper spline (213.2) is attached to the left flat surface of each key tooth of the second spline (214.1), then the locking sleeve (213) is moved downwards to the lower position, the inner lower spline (213.1) is meshed with the first spline (201.1), the locking sleeve (213) cannot rotate relative to the inner rod (214) and the fixed seat (201) due to the meshing relationship of the splines when the locking sleeve (213) is in the lower position, and the locking sleeve (213) is always in the lower position under the action of self gravity, so that the relative rotation of the inner rod (214) and the fixed seat (201) can be locked stably;

when the inner rod (214) and the fixed seat (201) need to be unlocked to rotate relatively, the locking sleeve (213) is moved upwards to the highest position of the upper position, the inner lower spline (213.1) is meshed with and disengaged from the first spline (201.1), then the locking sleeve (213) is rotated clockwise, the right side of the key tooth of the inner upper spline (213.2) is attached to the key tooth side above the groove (214.2), then the locking sleeve (213) is moved downwards, the bump (213.3) is clamped into the groove (214.2) and matched, so that the locking sleeve (213) cannot rotate, and the situation that the inner rod (214) is in danger because the locking sleeve (213) falls into the lower position due to vibration of equipment or manual mistaken collision in the rotating process and the rotation of the inner rod (214) is suddenly locked is avoided;

the direct drive motor (202) is installed in the center of the inside of the fixed seat (201), the driving rod (214.3) arranged at the lower end of the inner rod (214) is tightly connected with a rotor of the direct drive motor (202), and the direct drive motor (202) can drive the inner rod (214) to rotate, so that the first seat (1.1) and the second seat (1.2) achieve the effect of rotating a hobbyhorse, and the interestingness of the infant when the infant sits is increased.

5. The dual seat intelligent electric stroller of claim 1, wherein: the chassis mechanism (3) comprises a bottom plate (301), a control center (301.1), a battery pack (301.2), a first elastic rod (302), a first upper connecting rod (303), a first lower connecting rod (304), a left rear leg rod (305), a left rear wheel (306), a right rear wheel (307), a right rear leg rod (308), a second lower connecting rod (309), a second upper connecting rod (310), a second elastic rod (311), a chassis inclinometer (312), a third elastic rod (313), a third upper connecting rod (314), a third lower connecting rod (315), a right front leg rod (316), a right front wheel (317), a fourth upper connecting rod (318), a fourth lower connecting rod (319), a left front wheel (320), a left front leg rod (321) and a fourth elastic rod (322), wherein the bottom plate (301) is a supporting main body of the chassis mechanism (3), the front end of the left front leg rod (321) and the upper end of the left front wheel (320) form a rotation pair, and the rear end of the bottom plate (301) forms a left rotation pair, the rear end of the fourth upper connecting rod (318) and the left side of the front end of the bottom plate (301) form a revolute pair, the upper end of the fourth lower connecting rod (319) and the front end of the fourth upper connecting rod (318) form a revolute pair, the lower end and the left front leg rod (321) form a revolute pair, a spring is arranged in the fourth elastic rod (322), the rear end of the fourth elastic rod and the upper side of the bottom plate (301) form a revolute pair, and the front end of the fourth elastic rod and the front end of the fourth upper connecting rod (318) form a revolute pair; the front end of the right front leg rod (316) and the upper end of the right front wheel (317) form a revolute pair, the rear end of the right front leg rod and the right side of the front end of the bottom plate (301) form a revolute pair, the rear end of the third upper connecting rod (314) and the right side of the front end of the bottom plate (301) form a revolute pair, the upper end of the third lower connecting rod (315) and the front end of the third upper connecting rod (314) form a revolute pair, the lower end of the third upper connecting rod and the right front leg rod (316) form a revolute pair, a spring is arranged in the third elastic rod (313), the rear end of the third elastic rod and the upper side of the bottom plate (301) form a revolute pair;

the front end of the left rear leg rod (305) and the left side of the rear end of the bottom plate (301) form a revolute pair, the rear end of the left rear leg rod is provided with a left rear wheel (306), the front end of the first upper connecting rod (303) and the left side of the rear end of the bottom plate (301) form a revolute pair, the upper end of the first lower connecting rod (304) and the rear end of the first upper connecting rod (303) form a revolute pair, the lower end of the first lower connecting rod and the left rear leg rod (305) form a revolute pair, the front end of the first elastic rod (302) is internally provided with a spring, the front end of the first elastic rod and the upper side of the bottom plate (301) form; the front end of the right rear leg rod (308) and the right side of the rear end of the bottom plate (301) form a revolute pair, the rear end of the revolute pair is provided with a right rear wheel (307), the front end of the second upper connecting rod (310) and the right side of the rear end of the bottom plate (301) form a revolute pair, the upper end of the second lower connecting rod (309) and the rear end of the second upper connecting rod (310) form a revolute pair, the lower end of the revolute pair and the right rear leg rod (308) form a revolute pair, a spring is arranged in the second elastic rod (311), the front end of the second elastic rod and the upper side of the bottom plate (301) form a revolute pair, and the rear end of.

6. The dual seat intelligent electric stroller of claim 1, wherein: the lower end of the armrest frame (4) is fixedly connected with the rear end of the bottom plate (301) through a screw, the left side of the upper end of the armrest frame (4) is provided with a left handle (4.1), the front end of the left handle (4.1) is provided with a left shifting sleeve (4.11), a D gear, an N gear and an R gear, wherein the D gear is a forward gear, the N gear is a neutral gear, the R gear is a reverse gear, the left shifting sleeve (4.11) is provided with a pointer for indicating a current gear, the rear end of the left handle (4.1) is provided with a wavy left touch sensor (4.12) for monitoring whether the left handle (4.1) is held, the right side of the upper end of the armrest frame (4) is provided with a right handle (4.2), the front end of the right handle (4.2) is provided with a right shifting sleeve (4.21) and scale marks, the left end of the scale marks is 0 scale mark, the right end is 5 scale marks, the scale marks are increased clockwise, the right shifting sleeve (4.21) is initially located at 0 scale mark, a right touch sensor (4.22) in a wave shape is arranged at the holding position of the rear end of the right handle (4.2) and used for monitoring whether the right handle (4.2) is held; the touch display screen (4.3) is arranged at the upper end of the armrest frame (4) and can be used for displaying and setting various functions and parameters of the baby carriage.

7. The dual seat intelligent electric stroller of claim 1, wherein: the baby carriage is provided with an intelligent operating system, a chassis inclinometer (312) is arranged on the upper side of the bottom plate (301) and used for monitoring the pitch angle of the bottom plate (301) in real time, a battery pack (301.2) is fixedly arranged at the front end of the lower side of the bottom plate (301) and used for providing electric energy for the baby carriage, and a control center (301.1) is fixedly arranged at the rear end of the lower side of the bottom plate (301) and internally integrated with an intelligent processor and used for regulating and controlling various parameters of the baby carriage; the control center (301.1) is a core processing unit of an operating system, an intelligent processor in the control center can process data information collected on a first seat inclinometer (137), a second seat inclinometer (1016), a chassis inclinometer (312), a left handle (4.1), a right handle (4.2) and a touch display screen (4.3), and then drive a first electric push rod (220), a second electric push rod (212), a direct drive motor (202), a left rear wheel (306) and a right rear wheel (307) to perform corresponding actions, so that a first loudspeaker (215.1) and a second loudspeaker (215.2) can play corresponding music, system information is displayed on the touch display screen (4.3) in real time for a parent to read, and visual human-computer interaction is realized;

the left touch sensor (4.12) is used for monitoring whether the left handle (4.1) is held or not in real time, and the right touch sensor (4.22) is used for monitoring whether the right handle (4.2) is held or not in real time; when a pointer of the left shifting sleeve (4.11) indicates an N gear, hub motors in the left rear wheel (306) and the right rear wheel (307) do not act, if the left touch sensor (4.12) or the right touch sensor (4.22) detects that the left handle (4.1) or the right handle (4.2) is held, at the moment, the control center (301.1) enables the brakes in the left rear wheel (306) and the right rear wheel (307) to be released, and parents can push the baby carriage to move manually; if the left touch sensor (4.12) and the right touch sensor (4.22) detect that the left handle (4.1) and the right handle (4.2) are not held, the control center (301.1) enables the brake structures inside the left rear wheel (306) and the right rear wheel (307) to brake the two wheels, so that the baby carriage is stably stopped in situ without being held by a person and cannot slide, and the stopping safety of the baby carriage is ensured;

when the baby carriage needs to move forwards, the pointer of the left shifting sleeve (4.11) indicates a D gear, when the pointer of the right shifting sleeve (4.21) initially indicates a scale of 0, the left rear wheel (306) and the right rear wheel (307) do not act, the brake structures in the left rear wheel and the right rear wheel (307) brake the two wheels, after the right shifting sleeve (4.21) rotates clockwise, the brakes in the left rear wheel (306) and the right rear wheel (307) are released and the baby carriage starts to rotate forwards, the baby carriage moves forwards, the moving speed of the baby carriage is higher as the scale value indicated by the pointer of the right shifting sleeve (4.21) is larger, the highest moving speed of the baby carriage does not exceed 1.2m/s, danger is prevented when parents cannot follow up the moving speed of the baby carriage, and the maximum acceleration of the baby carriage moving forwards does not exceed 0.4m/s²So as to prevent the danger of the parents escaping from the hands caused by the sudden increase of the speed of the baby carriage in the acceleration process;

when the baby carriage needs to back up backwards, the pointer of the left shifting sleeve (4.11) indicates an R gear, the pointer of the right shifting sleeve (4.21) initially indicates a scale of 0, the left rear wheel (306) and the right rear wheel (307) do not act, the two wheels are braked by the brake structure in the left rear wheel and the right rear wheel, after the right shifting sleeve (4.21) rotates clockwise, the brakes in the left rear wheel (306) and the right rear wheel (307) are released and rotate backwards, the baby carriage moves backwards, the moving speed of the baby carriage is higher as the scale value indicated by the pointer of the right shifting sleeve (4.21) is larger, the highest speed of the baby carriage moving backwards is not more than 0.3m/s, so that the baby carriage is prevented from backing up backwards more than the parent and colliding with the parent, and the highest acceleration of the baby carriage backing up backwards is not more than 0.3m/s²To prevent the baby carriage from colliding with parents who cannot come backward because of too fast speed change in the backward reversing process;

when the baby carriage goes up a slope, the first seat (1.1) can incline upwards, the second seat (1.2) can incline downwards, and particularly an infant sitting on the second seat (1.2) feels tense and uncomfortable, when the baby carriage goes down a slope, the first seat (1.1) can incline downwards, the second seat (1.2) can incline upwards, and particularly an infant sitting on the first seat (1.1) feels tense and uncomfortable, therefore, in order to keep the two seats at the initial position all the time during going up and down, the first electric push rod (220) and the second electric push rod (212) can respectively adjust the pitching angles of the first seat (1.1) and the second seat (1.2) in real time;

when the baby carriage is in an initial state, the first seat (1.1) and the second seat (1.2) are both in initial positions in a horizontal state, when the baby carriage goes up or down a slope, the chassis inclinometer (312) detects the inclination angle of the bottom plate (301) and sends data to the control center (301.1), the control center (301.1) calculates and processes the data and then sends motion instructions to the first electric push rod (220) and the second electric push rod (212) respectively to enable the first electric push rod and the second electric push rod to perform corresponding telescopic actions so as to adjust the initial positions of the first seat (1.1) and the second seat (1.2), the first seat inclinometer (137) and the second seat inclinometer (1016) can monitor whether the first seat (1.1) and the second seat (1.2) are kept in the initial positions in real time and transmit the real-time pitching angles of the two seats to the control center (301.1), and the control center (301.1) calculates and processes the data, then, the motion instruction is respectively sent to a first electric push rod (220) and a second electric push rod (212) for real-time fine adjustment, so that a negative feedback closed-loop control system is formed, the first seat (1.1) and the second seat (1.2) are always kept at initial positions, and the comfort of taking the infant is enhanced; the initial positions of the first seat (1.1) and the second seat (1.2) can be independently set through the touch display screen (4.3) according to the preference of infants;

the functions of the transverse cradle of the first seat (1.1) and the transverse cradle of the second seat (1.2) are divided into two realization modes of a manual cradle and an automatic cradle;

when the cradle is manually operated: after the first locking wrench (208) is wrenched forwards to a horizontal position, the first seat (1.1) can be manually shaken, and after the second locking wrench (207) is wrenched backwards to a horizontal position, the second seat (1.2) can be manually shaken;

when the cradle is automatically cradled: the first locking wrench (208) is pulled forwards to a horizontal position, the second locking wrench (207) is pulled backwards to the horizontal position, the locking sleeve (213) is moved to an upper position, the bump (213.3) is clamped into the groove (214.2), so that the inner rod (214) can rotate relative to the fixing seat (201), and then the direct drive motor (202) drives the outer rod (216) to periodically swing left and right, so that the automatic cradle action of the first seat (1.1) and the second seat (1.2) is realized, and the swinging parameters during automatic cradle can be set through the touch display screen (4.3);

the first loudspeaker (215.1) and the second loudspeaker (215.2) can play the children songs, the ancient poems, the light music and the children stories according to the preference of the infants by operating the touch display screen (4.3), and the volume can be adjusted;

when the first seat (1.1) and the second seat (1.2) need to realize the function of the rotary hobbyhorse, the locking sleeve (213) is moved to the upper position, the bump (213.3) is clamped into the groove (214.2), so that the inner rod (214) can rotate relative to the fixed seat (201), the rotating speed and the steering of the direct drive motor (202) can be set through the touch display screen (4.3), the function of the rotary hobbyhorse can be realized by the first seat (1.1) and the second seat (1.2), and the interestingness of taking of infants is increased.

Technical Field

The invention relates to the field of strollers, in particular to a double-seat intelligent electric baby carriage.

Background

The baby carriage is a walking tool for babies, and the space in the baby carriage body can be used for the babies to sit, lie and the like, so that the baby carriage greatly facilitates the traveling activities of parents carrying the babies, and provides comfortable sitting and growing space for the babies; when the baby is small, the baby still needs to lie down when going out, and the baby carriage with the soft shock absorption and the high carriage style is more convenient for parents to take care of the baby; when the baby is large, the baby can eat certain baby meals, high dining chairs are often used for feeding the baby conveniently, a safety vehicle for assisting the baby to walk is needed for the baby in the learning and walking stage, the activity amount is large at the moment, and therefore the baby carriage with a lower gravity center needs to be used for preventing the baby carriage from overturning or falling down to cause large damage; in the process of using the baby carriage, some babies face parents to have a sense of safety, and other babies face forwards to facilitate observation of fresh things along the way, so that the baby carriage is required to have a function of adjusting the direction of the seat; the existing baby carriage has single function, and generally becomes an idle product due to the fact that the service life of the baby carriage can not meet the growth requirements of infants about one year; moreover, most of the existing baby carriages do not have the function of a cradle, and parents can only hold the baby to shake when the baby cries due to the emotions of fussy or boring, so that the crying of the baby can be stopped, which can increase the physical burden of the parents and the inconvenience in movement.

For satisfying the different demands of each growth stage of infant, especially twins infant's growth demand, purchase a plurality of perambulator and supplementary chair can lead to the family to purchase the expense increase, causes the waste of resource, also occupies more indoor parking space, along with life style's change, the consumer also appears diversified demand to the perambulator, and the product of function singleness can not satisfy people to the diversified demand of perambulator.

The invention patent with publication number CN102616263A discloses a cradle type multifunctional baby carriage, wherein the lower end of the basket body is provided with a basket body seat, the upper side of the basket plate is provided with a basket body groove, and the basket body seat can rotate in the basket body groove, so as to realize the cradle function of the longitudinal swing of the basket body; in addition, because the cradle swings longitudinally, the infant can have a head-foot high state when using the cradle, and the infant can show different degrees of tension or fear in the state, which can generate adverse effects on the fragile psychology of the infant.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide the double-seat intelligent electric baby carriage which is novel in structure, rich in functions and convenient to operate.

The technical scheme adopted by the invention is as follows: electronic perambulator of two seats intelligence, including first seat, second seat, frame mechanism, chassis mechanism, handrail frame, its characterized in that: the first seat and the second seat can automatically adjust the pitching inclination angle so that the two seats can always keep a horizontal state when the baby carriage goes up and down, the two seats can provide a comfortable sitting and lying space for infants, a flat plane can be formed inside the two seats to facilitate the infants to lie and play, the backrest inclination angle of the first seat can be adjusted according to the preferences of the infants, the table plate mechanism on the first seat can be taken as two side guard plates after being stored, the table plate mechanism can be used for the infants to place toys and food after being unfolded, the seat plate height of the second seat can be adjusted according to the body shapes of the infants, the upper end of the frame mechanism can be connected and separated with the first seat and the second seat through a modularized fast-inserting structure, the frame mechanism realizes the adjustment of the heights of the two seats through a telescopic structure, the circumferential rotation of the two seats can also be realized, and the interestingness of the infants when the infants, the cradle device comprises a frame mechanism, a chassis mechanism, a handrail frame, four wheels, an intelligent control system and a control system, wherein the frame mechanism is fixedly connected with the chassis mechanism, the handrail frame is fixedly connected with the chassis mechanism, the four wheels arranged below the chassis mechanism are all independently suspended, so that the damping performance and the passing performance of the chassis mechanism are improved, a more comfortable riding environment is provided for infants, the intelligent control system can play cradle curves for the infants, and parents can easily control the baby carriage through the handrail frame.

Preferably, the first seat comprises a support frame, a sliding plate, a seat plate, a right sliding block, a right connecting rod, a right two connecting rod, a right three connecting rod, a left sliding block, a first slot frame, a first button, a first hook, a right sliding frame, a right connecting rod, a first hook spring, a first set screw, a right elastic sheet, a left hook, a left sliding frame, a left connecting rod, a left elastic sheet, a right cover, a left cover, a turning plate, a left three connecting rod, a left connecting rod, a first seat inclinometer, a table plate mechanism and a seat plate driving mechanism, the support frame is a main body support structure of the first seat, the upper limit column, the lower limit column and a protection plate are arranged on two sides of the support frame, a horizontal support plate is arranged at the lower end of the support frame, a moving pair is formed by a guide rail sliding block group on the upper side of the support plate and the lower side of the sliding plate, a moving pair is formed by a, the left slide block can slide on the left guide rail, the lower end of a left connecting rod and the left side of the turning plate form a revolute pair, the upper end of the left connecting rod and the left end of the left slide block and the left end of a left two connecting rods form a revolute pair, the lower end of a left three connecting rod and the left side of the turning plate form a revolute pair, the upper end of the left three connecting rod and the right end of a left two connecting rods form a revolute pair, the right slide block can slide on the right guide rail, the lower end of a right connecting rod and the right side of the turning plate form a revolute pair, the upper end of the right three connecting rod and the right side of the turning plate form a revolute pair, and the upper end of the right three connecting rod and the right; the left side guardrail is formed by the left first connecting rod, the left second connecting rod and the left third connecting rod, the right side guardrail is formed by the right first connecting rod, the right second connecting rod and the right third connecting rod, and the guardrails on the two sides are used for protecting infants and preventing the infants from falling off from the first seat.

Preferably, two guide rails are arranged on two sides of the rear end of the support frame, the left sliding frame can slide on the left guide rail, the upper limit column of the sliding frame and the lower limit column of the sliding frame are arranged on the left side of the left sliding frame, a shifting rod is arranged at the rear end of the left plate connecting rod and forms a revolute pair with the left sliding frame, the left clamping hook is arranged at the lower left end of the rear side of the support frame and forms a revolute pair, the upper end of the left clamping hook is located at the rear side of the shifting rod, a left elastic sheet is arranged between the lower end of the left clamping hook and the support frame, the left sliding frame located at the initial position of the lower end can be clamped by the left clamping hook under the; the right sliding frame can slide on the guide rail on the right side of the rear end of the support frame, the right sliding frame right side is provided with a limiting column on the sliding frame and a limiting column under the sliding frame, the rear end of a right plate connecting rod is provided with a driving lever and forms a revolute pair with the right sliding frame, the right clamping hook is installed at the right lower end of the rear side of the support frame and forms a revolute pair, the upper end of the right clamping hook is located at the rear side of the driving lever of the right plate connecting rod, a right elastic sheet is installed between the lower end of the right clamping hook and the support frame, under the elastic action of the right elastic sheet, the right clamping hook can clamp the right sliding frame located at the initial.

When the baby carriage is in an initial state, the seat plate and the turning plate can form a plane, so that the baby can conveniently lie down and play, and the left sliding frame and the right sliding frame are positioned at the lowest end positions and are respectively blocked by the left clamping hook and the right clamping hook.

When the backrest needs to be lifted, the seat driving mechanism is operated to enable the seat to move backwards, the turning plate also moves backwards, the rear end of the turning plate pushes the left plate connecting rod and the right plate connecting rod to rotate clockwise until the left plate connecting rod contacts the upper limit column of the sliding frame, the right plate connecting rod contacts the upper limit column of the sliding frame of the right sliding frame, in the process, the shift lever of the left plate connecting rod and the shift lever of the right plate connecting rod respectively shift the upper end of the left clamping hook and the upper end of the right clamping hook backwards to enable the left plate connecting rod and the right plate connecting rod to rotate clockwise and release the clamping of the left sliding frame and the right sliding frame, then the seat is continuously moved backwards, the rear end of the turning plate respectively pushes the left sliding frame and the right sliding frame to slide upwards through the left plate connecting rod and the right plate connecting rod, the movement of the seat is stopped until the turning plate reaches a proper inclination angle; when the inclination angle of the turning plate needs to be slowed down, the seat driving mechanism is operated to enable the seat to move forwards until the seat and the turning plate form a plane.

Preferably, the first slot frame is installed at the upper end of the rear side of the support frame through screw fastening, a rectangular groove is formed in the upper end of the right side of the first slot frame, two rectangular jacks are formed in the upper end of the rectangular groove, a hook cavity and a transverse button hole are formed in the lower end of the first slot frame, the first hook is installed in the hook cavity and can slide up and down in the hook cavity, an inclined plane structure is arranged at the upper end of the first hook, a rectangular opening is formed in the middle of the first hook, an inclined plane is formed in the lower end of the first slot frame, the first button penetrates through the rectangular opening in the middle of the first hook and is installed in the button hole of the first slot frame, two threaded holes communicated with the hook cavity are formed in the lower end of the first slot frame, two first set screws are installed.

Preferably, the table plate mechanism comprises a right inner plate, a right outer plate, a left inner plate and a left outer plate, a first baffle groove and a second baffle groove are arranged between two upright posts on the left side of the seat plate, the upper end of the left outer plate and the upper ends of the two upright posts on the left side form a revolute pair, the upper end of the left inner plate is arranged in the left outer plate and forms a moving pair, and the lower end of the left inner plate is provided with a left plate handle and a left plate hook; a third baffle groove and a fourth baffle groove are formed between the two stand columns on the right side of the seat plate, the upper end of the right outer plate and the upper ends of the two stand columns on the right side form a revolute pair, the upper end of the right inner plate is installed inside the right outer plate and forms a moving pair, and a right plate handle and a right plate hanging rod are arranged at the lower end of the right inner plate.

In the initial state, the left outer plate is in a vertical state under the action of gravity, the left inner plate is contracted in the left outer plate, and the lower end of the left inner plate is clamped in the first blocking groove and the second blocking groove, so that the left inner plate and the left outer plate cannot swing left and right to form a protective plate on the left side of the first seat; the right outer plate is in a vertical state under the action of gravity, the right inner plate is contracted inside the right outer plate, and the lower end of the right inner plate is clamped into the third blocking groove and the fourth blocking groove, so that the right inner plate and the right outer plate cannot swing left and right to form a guard plate on the right side of the first seat.

When the table plate needs to be used, the left plate handle is pulled upwards to enable the lower end of the left inner plate to be separated from the first blocking groove and the second blocking groove, the left inner plate and the left outer plate are turned upwards and the left inner plate is pulled outwards, meanwhile, the right plate handle is pulled upwards to enable the lower end of the right inner plate to be separated from the third blocking groove and the fourth blocking groove, the right inner plate and the right outer plate are turned upwards and pulled outwards, the left plate hook hooks the right plate hanging rod, the left inner plate and the right inner plate are placed horizontally, the left inner plate and the right inner plate are mutually propped, and a table plate mechanism formed by the left inner plate, the left outer plate, the right inner plate and the right outer plate is kept in a horizontal state; when the table mechanism needs to be stored, the connecting position of the left inner plate and the right inner plate is moved upwards, the hook of the left plate is released from the hanging rod of the right plate, and the left inner plate, the left outer plate, the right inner plate and the right outer plate are restored to the initial state, so that the storage process of the table mechanism can be completed.

Preferably, the seat driving mechanism comprises a first guide wheel, a second guide wheel, a third guide wheel, a fourth guide wheel, a lead screw, a hand wheel, a first rope, a second rope, a third rope and a fourth rope, the fourth guide wheel is installed on the left side of the front end of the sliding plate and forms a revolute pair, the first guide wheel is installed on the right side of the front end of the sliding plate and forms a revolute pair, the second guide wheel and the third guide wheel are installed on the rear end of the sliding plate and form a revolute pair, a screw hole is formed in the middle position of the rear end of the sliding plate, the lead screw is installed in the middle position of the rear end of the supporting frame and forms a revolute pair, a threaded structure of the front end of the lead screw is installed in.

Preferably, the upper end of the first rope is fixedly connected with the rear end of the seat plate, the lower end of the first rope is fixedly connected with the rear end of the support frame after bypassing the first guide wheel, the upper end of the second rope is fixedly connected with the rear end of the seat plate, the lower end of the second rope is fixedly connected with the front end of the support frame after bypassing the second guide wheel, the upper end of the third rope is fixedly connected with the rear end of the seat plate, the lower end of the third rope is fixedly connected with the front end of the support frame after bypassing the third guide wheel, the upper end of the fourth rope is fixedly connected with the rear end of the seat plate, and.

And the hand wheel is rotated clockwise, the lead screw drives the sliding plate to move backwards through the screw hole, and the upper ends of the second rope and the third rope move backwards under the pushing of the second guide wheel and the third guide wheel, so that the seat plate moves backwards.

And the hand wheel is rotated anticlockwise, the lead screw drives the sliding plate to move forwards through the screw hole, and the upper ends of the first rope and the fourth rope move forwards under the pushing of the first guide wheel and the fourth guide wheel, so that the seat plate moves forwards.

The screw pair formed by the screw rod and the screw hole has a self-locking function, so that the movement of the sliding plate can be controlled only by the rotation of the hand wheel, and the winding connection structure of the first rope, the second rope, the third rope and the fourth rope can ensure that the movement of the seat plate can be controlled only by the movement of the sliding plate and can not move spontaneously.

Preferably, the second seat comprises a frame, a backrest, a turning plate, a connecting plate, a pressure spring screw, a bead pushing spring, a spring piece, a top hook, a positioning frame, a second slot frame, a second button, a second hook spring, a second set screw and a second seat inclinometer, the frame is a main body supporting structure of the second seat, mesh enclosure barriers with good ventilation effect are arranged on two sides of the frame, the front end of the frame is provided with a transverse handrail and an upright baffle for protecting the safety of infants, the bottom side of the frame is longitudinally provided with two rectangular square holes with round corners, the two connecting plates, the turning plate and the frame form a revolute pair, the seat plate is rotatably connected with the frame, the two guide rods are arranged in the rear end of the frame, the two guide holes arranged on the rear side of the backrest are matched with the two guide rods, the backrest can slide up and down relative to the frame, and the shape and the size of the seat plate arranged at the bottom end of the backrest are the same as those of the rectangular square hole at the rear end of the bottom side of the frame.

In the initial state, the turning plate is turned forwards to cover the rectangular square hole in the front end of the frame, and the backrest is at the lowest position to enable the seat plate to cover the rectangular square hole in the rear end of the frame, so that the bottom of the second seat forms a flat plane for the infant to lie down and play.

Preferably, the second slot frame is fixedly connected with the upper end of the rear side of the frame through screws, a rectangular groove is formed in the upper end of the right side of the second slot frame, two rectangular jacks are formed in the upper end of the rectangular groove, a hook cavity and a transverse button hole are formed in the lower end of the second slot frame, the second hook is installed in the hook cavity and can slide up and down in the hook cavity, an inclined surface structure is arranged at the upper end of the second hook, a rectangular opening is formed in the middle of the second hook, an inclined surface is arranged on the lower side of the second button, the second button penetrates through the rectangular opening in the middle of the second hook and is installed in the button hole of the second slot frame, two threaded holes communicated with the hook cavity are formed in the lower end of the second slot frame, two second set screws are installed in the two threaded holes respectively, and two second hook springs are arranged between the two.

The second holding screw and the second slot framework form a thread pair connection, the compression amount of the second hook spring can be changed by adjusting the position of the second holding screw, and therefore the pressing and rebounding force of the second button can be adjusted.

Preferably, the rear end of the frame is provided with a cavity structure, the lower end of the front side of the cavity structure is provided with a rotatable lower retaining wheel, the rear side of the cavity structure is longitudinally provided with a ratchet bar, the upper end of the ratchet bar is provided with a rotatable upper retaining wheel, the positioning frame is fixedly connected with the backrest through a screw, the front side of the top hook is provided with a front top surface, the lower end of the rear side is provided with a rear top surface, the top hook is arranged in the positioning frame and forms a revolute pair, two spring pieces are arranged between the positioning frame and the top hook, the top hook has a tendency of anticlockwise rotation under the elastic force of the spring pieces, the top end of the positioning frame is provided with a threaded hole, the top bead is arranged at the lower end of the threaded hole and extends downwards, the pressure spring screw is arranged at the upper end of the threaded hole through a thread pair, the top bead spring is arranged between the, the lower end of the top hook can be meshed with the teeth of the ratchet bar, so that the height position of the backrest is positioned.

In an initial state, under the action of the elasticity of the spring piece, the top end of the top hook is positioned on the left side of the top bead; when the height of the seat plate needs to be adjusted, the backrest is pulled upwards, the lower end of the top hook can bounce upwards from bottom to top between the teeth of the ratchet bar, the upper end of the top hook is always located in the left area of the top bead in the process, the backrest stops being pulled upwards after the seat plate moves to a proper height position, the lower end of the top hook can be clamped between the teeth of the corresponding ratchet bar and cannot move downwards, and therefore the height adjustment and the positioning of the seat plate are completed.

When the height of the seat plate needs to be reduced, the backrest is pulled upwards to the highest position, the front top surface of the top hook can move upwards and contact with the upper blocking wheel in the process, the top hook can rotate clockwise to enable the upper end of the top hook to compress and cross the top bead under the pushing of the upper blocking wheel and reach the right interval of the top bead, the upper end of the top hook cannot spontaneously cross the top bead to reach the left interval under the blocking effect of the top bead, at the moment, the lower end of the top hook is separated from being meshed with the ratchet, the seat plate can smoothly slide downwards, when the seat plate slides to the lowest end position, the lower blocking wheel can abut against the rear top surface of the top hook, the top hook rotates anticlockwise under the thrust effect of the lower blocking wheel, the upper end of the top hook is compressed and crosses the top bead to reach the left interval, the initial state is recovered, and the seat plate can be continuously adjusted to the.

Preferably, the frame mechanism comprises a fixed seat, a direct drive motor, a second support rod, a second swing rod, a second cradle inserted rod, a second inserted rod spring, a second locking wrench, a first inserted rod spring, a first cradle inserted rod, a first pressure rod, a second electric push rod, a locking sleeve, an inner rod, a first horn, a second horn, an outer rod, a first swing rod, a first support rod, a second pressure rod, a first electric push rod and a pneumatic rod, wherein the left side of the first support rod is of a rectangular plate structure, the upper end of the rectangular plate structure is provided with two inserted plates, the upper end of the first support rod and the left end of the first swing rod form a revolute pair, the first electric push rod is arranged between the lower end of the first support rod and the lower end of the first swing rod and forms a revolute pair with the first support rod and the second support rod, the right end of the first swing rod is of a circular shaft structure, a circular hole is vertically arranged on the upper side of the circular shaft structure, a stepped circular hole is vertically formed in the front end of the upper side of the outer rod, a first cradle inserted bar is coaxially arranged in the stepped circular hole to form a moving pair, a first inserted bar spring is arranged between the upper end of the outer rod and the first cradle inserted bar, and the lower end of a first locking wrench and the upper end of the first cradle inserted bar form a rotating pair; the right side of the second supporting rod is of a rectangular plate structure, two inserting plates are arranged at the upper end of the rectangular plate structure, the upper end of the second supporting rod and the right end of the second swing rod form a revolute pair, the second electric push rod is installed between the lower end of the second supporting rod and the lower end of the second swing rod and forms a revolute pair with the lower end of the second swing rod, the left end of the second swing rod is of a round shaft structure, a round hole is vertically formed in the upper side of the round shaft structure in the vertical direction, the rear end of the upper side of the outer rod vertically forms a stepped round hole, a second cradle inserting rod is coaxially installed in the stepped round hole and forms a moving pair, a second inserting rod spring is installed between the upper end of the outer rod and the second cradle inserting rod, and the lower end of a second locking wrench and the upper end of the.

Preferably, the left rectangular plate structure of the first support rod can be embedded into the rectangular groove of the first slot frame, the two insert plates at the upper end of the rectangular plate structure are inserted into the two rectangular insertion holes at the upper end of the rectangular groove of the first slot frame, and the hook can hook the lower edge of the rectangular plate structure, so that the modular connection of the first seat and the frame mechanism is realized; the first button is pressed to enable the hook to retract inwards, so that the connection between the first seat and the frame mechanism can be released; the connection principle of the second seat and the frame mechanism through the second support rod is the same as that described above.

Preferably, the inner rod is arranged inside the outer rod, the inner rod and the outer rod form a moving pair, the top end of the air pressure rod is provided with a vent valve switch, the air pressure rod can be extended by pressing the vent valve switch, the lower end of the air pressure rod is arranged at the lower end inside the inner rod, the upper end of the air pressure rod is arranged at the upper end inside the outer rod, the outer rod is provided with a front long hole and a rear long hole, the left side of the first pressure rod is provided with a first pressure plate, the rear end of the first pressure rod and the inner rod form a rotating pair, the front end of the first pressure rod and the inner rod can swing up and down in the front long.

When the first seat and the second seat are in an idle state, the first pressure bar or the second pressure bar is pressed downwards to enable the first pressure plate or the second pressure plate to press the vent valve switch at the top end of the air pressure rod downwards, so that the air pressure rod can extend freely, the outer rod moves upwards, and the first seat and the second seat are lifted.

When the first seat and the second seat are in an idle state, the first pressure rod or the second pressure rod is pressed downwards, the outer rod is pressed downwards at the same time, the air pressure rod can be shortened, the first pressure rod and the second pressure rod are loosened, the length of the air pressure rod is locked, and therefore the height of the first seat and the height of the second seat are reduced.

Preferably, the lower end of the inner rod forms a revolute pair with the fixed seat through two deep groove ball bearings and a thrust ball bearing, a second spline is arranged at the position close to the lower end of the inner rod, the left side of each tooth of the second spline is of a flat structure, a bulge is arranged on the lower half part of the right side, a groove is formed in the top end of each bulge, an inner upper spline is arranged at the upper end of the inner part of the locking sleeve, a convex block is arranged on the right side of the lower end of each tooth of the inner upper spline, a first spline is arranged at the top end of the fixed seat, the locking sleeve and the lower end of the inner rod are coaxially installed, the inner upper spline and the second spline are installed in a matched mode, the locking sleeve can move up and down and rotate relative to the inner rod, namely the locking sleeve can rotate relative to the inner rod when the inner rod is.

When the relative rotation of pole and fixing base in needs locking, upwards remove the locking cover to the highest position of upper position, later anticlockwise rotation locking cover, make every key tooth of interior upper spline laminate the left side smooth surface of every key tooth of second spline, later remove the locking cover to the next position downwards, spline and first spline meshing under making, the locking cover can not rotate for pole and fixing base because the meshing relation of spline when the next position, and the locking cover is in the next position all the time under self action of gravity, thereby can firmly lock the relative rotation of pole and fixing base in interior.

When the relative rotation of pole and fixing base in needs unblock, upwards remove the locking cover to the highest position of upper position, lower spline and first spline meshing break away from the meshing in making, later clockwise rotation locking cover, the key tooth side of the key tooth right side laminating recess top of spline in making, later remove the locking cover downwards and make the lug card go into the recess and realize the cooperation, thereby make the locking cover can not rotate, avoid interior pole at the rotation in-process, because the reason that equipment vibrations or artificial mistake bumped makes the locking cover fall into the next, lead to the rotation of pole suddenly by the locking and take place dangerous situation.

Preferably, the direct-drive motor is installed in the center of the inside of the fixing seat, the driving rod arranged at the lower end of the inner rod is fixedly connected with the rotor of the direct-drive motor, and the direct-drive motor can drive the inner rod to rotate, so that the first seat and the second seat can achieve the effect of rotating a hobbyhorse, and the interestingness of the infant when the infant is taken is increased.

Preferably, the chassis mechanism comprises a bottom plate, a control center, a battery pack, a first elastic rod, a first upper connecting rod, a first lower connecting rod, a left rear leg rod, a left rear wheel, a right rear leg rod, a second lower connecting rod, a second upper connecting rod, a second elastic rod, a chassis inclinometer, a third elastic rod, a third upper connecting rod, a third lower connecting rod, a right front leg rod, a right front wheel, a fourth upper connecting rod, a fourth lower connecting rod, a left front wheel, a left front leg rod and a fourth elastic rod, wherein the bottom plate is a supporting main body of the chassis mechanism, the front end of the left front leg rod and the upper end of the left front wheel form a rotating pair, the rear end of the left front leg rod and the left side of the front end of the bottom plate form a rotating pair, the rear end of the fourth upper connecting rod and the left side of the front end of the bottom plate form a rotating pair, the upper end of the fourth lower connecting rod and the front end of the fourth upper connecting rod form a rotating pair, the lower end and the left front leg rod, the front end of the fourth upper connecting rod and the front end of the fourth upper connecting rod form a revolute pair; the front end of the right front leg rod and the upper end of the right front wheel form a revolute pair, the rear end of the right front leg rod and the right side of the front end of the bottom plate form a revolute pair, the rear end of the third upper connecting rod and the right side of the front end of the bottom plate form a revolute pair, the upper end of the third lower connecting rod and the front end of the third upper connecting rod form a revolute pair, the lower end of the third lower connecting rod and the front end of the right front leg rod form a revolute pair, the third elastic rod is internally provided with a spring, the rear end of the third elastic rod and the upper.

Preferably, the front end of the left rear leg rod and the left side of the rear end of the bottom plate form a revolute pair, the rear end of the left rear leg rod is provided with a left rear wheel, the front end of the first upper connecting rod and the left side of the rear end of the bottom plate form a revolute pair, the upper end of the first lower connecting rod and the rear end of the first upper connecting rod form a revolute pair, the lower end of the first lower connecting rod and the left rear leg rod form a revolute pair, the first elastic rod is internally provided with a spring, the front end of the first elastic rod and the upper side of the bottom plate form a revolut; the front end of the right rear leg rod and the right side of the rear end of the bottom plate form a revolute pair, the rear end of the right rear leg rod is provided with a right rear wheel, the front end of the second upper connecting rod and the right side of the rear end of the bottom plate form a revolute pair, the upper end of the second lower connecting rod and the rear end of the second upper connecting rod form a revolute pair, the lower end of the second lower connecting rod and the right rear leg rod form a revolute pair, the front end of the second elastic rod is internally provided with a spring, the upper side of the bottom plate and the front end of the second.

Preferably, the lower end of the armrest frame is fixedly connected with the rear end of the bottom plate through a screw, the left side of the upper end of the armrest frame is provided with a left handle, the front end of the left handle is provided with a left shifting sleeve, a D gear, an N gear and an R gear, wherein the D gear is a forward gear, the N gear is a neutral gear, the R gear is a reverse gear, the left shifting sleeve is provided with a pointer for indicating a current gear, the rear end of the left handle is provided with a left touch sensor in a wavy shape for monitoring whether the left handle is held, the right handle is provided with a right handle, the front end of the right handle is provided with a right shifting sleeve and scale marks, the left end of the scale marks is provided with scales, the right end of the scale marks is provided with scales, the scale values from left to right clockwise gradually increase, the right shifting sleeve is initially positioned on the scales, the right shifting sleeve can automatically return to zero after being loosened, and the rear end of the right; the touch display screen is arranged at the upper end of the armrest frame and can be used for displaying and setting various functions and parameters of the baby carriage.

Preferably, the baby carriage is provided with an intelligent operating system, the chassis inclinometer is arranged on the upper side of the bottom plate and used for monitoring the pitching angle of the bottom plate in real time, the battery pack is fixedly arranged at the front end of the lower side of the bottom plate and used for providing electric energy for the baby carriage, the control center is fixedly arranged at the rear end of the lower side of the bottom plate, and an intelligent processor is integrated in the control center and used for regulating and controlling various parameters of the baby carriage; the control center is a core processing unit of an operating system, an intelligent processor in the control center can process data information collected on the first seat inclinometer, the second seat inclinometer, the chassis inclinometer, the left handle, the right handle and the touch display screen, then drive the first electric push rod, the second electric push rod, the direct drive motor, the left rear wheel and the right rear wheel to make corresponding actions, and also enable the first loudspeaker and the second loudspeaker to play corresponding music, and display system information on the touch display screen in real time for parents to read, so that visual human-computer interaction is realized.

The left touch sensor is used for monitoring whether the left handle is held in real time, and the right touch sensor is used for monitoring whether the right handle is held in real time; when the left shifting sleeve pointer indicates N gears, the hub motors in the left rear wheel and the right rear wheel do not act, if the left touch sensor or the right touch sensor detects that the left handle or the right handle is held, the control center releases the brakes in the left rear wheel and the right rear wheel, and parents can manually push the baby carriage to move; if the left touch sensor and the right touch sensor detect that the left handle and the right handle are not held, the control center brakes the two wheels by the brake structures inside the left rear wheel and the right rear wheel, so that the baby carriage is stably stopped in situ without being held by a person and cannot slide, and the safety of the baby carriage in stopping is ensured.

When the baby carriage needs to move forwards, the pointer of the left shifting sleeve indicates a D gear, when the pointer of the right shifting sleeve initially indicates scales, the left rear wheel and the right rear wheel do not act, the two wheels are braked by the brake structure in the left rear wheel and the right rear wheel, after the right shifting sleeve rotates clockwise, the brakes in the left rear wheel and the right rear wheel are released and start to rotate forwards, the baby carriage moves forwards, the moving speed of the baby carriage is higher when the scale value indicated by the pointer of the right shifting sleeve is larger, the highest speed of the forward movement of the baby carriage does not exceed 1.2m/s, and therefore danger caused by the fact that parents cannot follow the forward movement speed of the baby carriage is prevented, and the maximum acceleration of the forward movement of the baby carriage does not exceed 0.4m/s²So as to prevent the baby carriage from suddenly increasing the speed in the acceleration process and causing the danger of the parents taking off the hands.

When the baby carriage needs to back backwards, the pointer of the left shifting sleeve indicates an R gear, when the pointer of the right shifting sleeve initially indicates scales, the left rear wheel and the right rear wheel do not act, the two wheels are braked by the brake structure in the left rear wheel and the right rear wheel, after the right shifting sleeve rotates clockwise, the brakes in the left rear wheel and the right rear wheel are released and start to rotate backwards, so that the baby carriage moves backwards, the moving speed of the baby carriage is higher when the scale value indicated by the pointer of the right shifting sleeve is larger, the highest speed of the backward movement of the baby carriage does not exceed 0.3m/s, the backward speed of the baby carriage is prevented from being larger than the backward speed of parents, so that the baby carriage hits parents, and the maximum acceleration of the backward movement of the baby carriage does not exceed 0.3m/s²So as to prevent the baby carriage from having too fast speed change in the backward reversing process and colliding with parents who cannot back up.

When the baby carriage goes up a slope, the first seat can incline upwards, the second seat can incline downwards, and particularly, an infant sitting on the second seat feels tension and discomfort.

When the baby carriage is in an initial state, the first seat and the second seat are both in initial positions in a horizontal state, when the baby carriage is in an uphill slope or a downhill slope, the chassis inclinometer detects the inclination angle of the bottom plate and sends data to the control center, the control center calculates and processes the data and then sends motion instructions to the first electric push rod and the second electric push rod respectively to enable the first electric push rod and the second electric push rod to perform corresponding telescopic actions so as to adjust the first seat and the second seat to keep the initial positions, the first seat inclinometer and the second seat inclinometer can monitor whether the first seat and the second seat are kept at the initial positions respectively in real time and transmit real-time pitching angles of the two seats to the control center, the control center calculates and processes the data and then sends the motion instructions to the first electric push rod and the second electric push rod respectively to perform real-time fine adjustment to form a closed-loop control system, so that the first seat and the second seat are always kept at the initial positions, the riding comfort of the infants is enhanced; the initial positions of the first seat and the second seat can be set independently through the touch display screen according to the preference of the infant.

The functions of the transverse cradle of the first seat and the second seat are divided into two realization modes of a manual cradle and an automatic cradle:

when the cradle is manually operated: after pulling first locking spanner forward to the horizontal position, can manually rock first seat, pull second locking spanner backward to the horizontal position after, can manually rock the second seat.

When the cradle is automatically cradled: the first locking wrench is pulled forwards to a horizontal position, the second locking wrench is pulled backwards to the horizontal position, the locking sleeve is moved to an upper position, the protruding block is clamped into the groove, the inner rod can rotate relative to the fixing seat, and then the direct-drive motor drives the outer rod to periodically swing left and right, so that automatic cradle actions of the first seat and the second seat are realized, and swing parameters during automatic cradle can be set through the touch display screen.

Through operating the touch display screen, the first loudspeaker and the second loudspeaker can play the children songs, the ancient poems, the light music and the children stories according to the preference of the infants, and the volume can be adjusted.

When first seat and second seat need realize rotatory vaulting horse function, move the locking cover to last and make the lug card go into in the recess to the pole can rotate for the fixing base in making, can set up the rotational speed that directly drives the motor through touch display screen and turn to, thereby make first seat and second seat realize rotatory vaulting horse function, increase the interest when infant takes.

The invention has the beneficial effects that:

one baby carriage can meet the requirement of twins or two babies with small age difference for going out simultaneously, compared with two common baby carriages, the baby carriage has the advantages of reduced purchasing cost, saved storage space, capability of completing the care of two babies by one parent and convenient use.

The heights of the two seats can be adjusted according to the requirements of infants, and when a small infant is born, the positions of the seats can be properly adjusted to be high, so that parents can conveniently look after the seats; when the infant is bigger, the seat can be properly lowered, the overall gravity center is lowered, and the riding safety is improved.

And thirdly, the height of the seat is adjusted by adopting a pneumatic rod structure, so that the operation is convenient, the pneumatic rod has a certain damping and buffering effect, and the riding comfort of the seat is improved.

The inclination angle of the first seat backrest can be adjusted as required, so that infants with different body types can keep comfortable sitting postures, the operation is convenient, the adjustment of the inclination angle of the backrest can be completed only by rotating the hand wheel, and the locking of any position of the backrest is realized by the self-locking function of the screw pair of the lead screw.

The table plate mechanism of the first seat can be conveniently unfolded and folded, food and toys of infants can be placed after the first seat is unfolded, and the first seat can be used as guardrail plates on two sides of the first seat after the first seat is folded, so that the safety of the infants is protected.

The height of the seat plate in the second seat can be adjusted to a comfortable height according to the body type and the preference of the infant, the height adjustment of the seat plate has an automatic resetting function, an additional switch is not needed for locking, and the seat plate is simple to operate, convenient to use and stable and reliable in positioning.

The two seats can realize the function of rotating the hobbyhorse, and increase the interestingness of taking the infant.

The two loudspeakers can play the children songs, the ancient poems, the light music, the children stories and the like, and the two loudspeakers are helpful for appeasing the emotion of the infants, expanding the knowledge of the infants and enlightening the knowledge of the infants on things.

Ninthly, two seats have the cradle function, can realize transversely rocking according to the pendulum effect, the seat can not appear the danger that descends suddenly at the in-process of rocking, the state that also can not appear head low foot height makes infant produce uneasy and nervous, can effectively stop infant because mood such as restlessness or boring and cry that cause, alleviate the head of a family's burden, and have manual cradle and automatic cradle two kinds of modes, wherein manual cradle can rock a seat alone, automatic cradle can rock two seats simultaneously.

The swing of the swing rod can be locked and unlocked by pulling the locking wrench at the wave front, so that the cradle swing functions of the two seats can be locked or unlocked, the cradle functions can be locked when the baby carriage is moved, the safety is improved, the cradle functions can be unlocked when the baby cry and scream, and the operation is quick and convenient.

The two seats and the frame can be quickly and stably connected through the modular connecting mechanism, so that the assembly efficiency is improved, other seats adopting the same connecting module can be quickly and conveniently replaced according to actual needs, and the interchangeability of the seats is improved.

No matter going uphill or downhill, the negative feedback closed-loop control system can always keep the two seats at the initial positions, so that the comfort of the infant in riding is enhanced.

The inner rod can be locked relative to the fixed seat only by one locking sleeve, the spline structure is mature in technology and low in cost, high machining precision is achieved, the locking is kept by means of gravity, extra power source support is not needed, and the inner rod is convenient to operate and simple and reliable.

The four wheels are of independent suspension structures, the damping performance and the passing performance of the chassis mechanism are improved, a more comfortable riding environment is provided for infants, and parents can easily control the baby carriage.

The baby carriage is provided with an intelligent operating system, the control center serves as a core processing unit of the operating system, data of each sensor can be processed in real time, each execution unit is controlled to make corresponding actions, and the visual man-machine interaction mode of the touch display screen is adopted, so that the operation efficiency of parents is greatly improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of two seats implementing the carousel function.

Fig. 3 is a functional schematic diagram of the automatic cradle.

Fig. 4 is a schematic view of the overall structure of the first seat.

Fig. 5 is an exploded view of the first seat.

Fig. 6 is a partial cross-sectional view of the first seat.

Fig. 7 is a partial cross-sectional view of the first seat.

Fig. 8 is a schematic structural view of the slide plate.

Fig. 9 is a schematic view of the table mechanism in the accommodated state.

Fig. 10 is a schematic view of the deployed state of the table mechanism.

Fig. 11 is a schematic view of the overall structure of the second seat.

Fig. 12 is an exploded view of the second seat.

Fig. 13 is a schematic view of the second seat with the seat plate raised.

Fig. 14 is a schematic view of a seat plate descending state of the second seat.

Fig. 15 is an exploded view of the frame mechanism.

Fig. 16 is a partially cross-sectional schematic view of the carriage mechanism.

Fig. 17 is a partially cross-sectional schematic view of the carriage mechanism.

Fig. 18 is a partially cross-sectional schematic view of the carriage mechanism.

FIG. 19 is a partially disassembled schematic view of the frame mechanism.

Fig. 20 is a schematic view of the entire structure of the chassis mechanism.

Fig. 21 is a schematic view of the left handle structure.

Fig. 22 is a structural schematic view of a right handle.

Fig. 23 is a control system schematic.

Reference numerals: 1.1 first seat, 101 support frame, 101.1 support plate, 101.2 upper limit column, 101.3 lower limit column, 102 slide plate, 102.1 first guide wheel, 102.2 second guide wheel, 102.3 third guide wheel, 102.4 fourth guide wheel, 102.5 threaded hole, 103 seat plate, 103.1 left guide rail, 103.2 right guide rail, 103.3 first blocking groove, 103.4 second blocking groove, 103.5 third blocking groove, 103.6 fourth blocking groove, 104 right inner plate, 104.1 right plate handle, 104.2 right plate hanging rod, 105 right outer plate, 106 right slider, 107 right connecting rod, 108 right connecting rod, 109 right connecting rod, 110 left slider, 111 first slot frame, 112 first button, 113 left outer plate, 114 left inner plate, 114.1 left plate handle, 114.2 left plate, 115 first hook, 116 right hook, right sliding frame, 117 right sliding frame, 118 right connecting rod, 118 first hook spring connecting rod, 119 first hook column, 120 lower limit column, 123.2 upper limit column, 123.3 lower limit column, 102.3 sliding frame, 123.3 sliding frame, 123 sliding frame, 123.1 left sliding frame, 123 sliding frame, 123.2 left sliding frame, 123 sliding frame, 123, 124.1 deflector rod, 125 left spring plate, 126 right cover, 127 left cover, 128 lead screw, 128.1 hand wheel, 129 first rope, 130 second rope, 131 third rope, 132 fourth rope, 133 turning plate, 134 left three connecting rod, 135 left two connecting rod, 136 left one connecting rod, 137 first seat inclinometer;

1.2 a second seat, a 1001 frame, 1001.1 lower catch wheels, 1001.2 guide rods, 1001.3 ratchet bars, 1001.4 upper catch wheels, 1002 backrest, 1002.1 seat plate, 1003 turning plate, 1004 connecting plate, 1005 compression spring screw, 1006 top ball spring, 1007 top ball, 1008 spring plate, 1009 top hook, 1009.1 front top surface, 1009.2 rear top surface, 1010 locating rack, 1011 slotted rack, 1012 button, 1013 hook, 1014 hook spring, 1015 set screw and 1016 second seat inclinometer;

2, a frame mechanism, a 201 fixing seat, 201.1 first splines, 202 direct drive motors, 203 second supporting rods, 203.1 second inserting plates, 204 second swing rods, 205 second cradle inserting rods, 206 second inserting rod springs, 207 second locking wrenches, 208 first locking wrenches, 209 first inserting rod springs, 210 first cradle inserting rods, 211 first pressing rods, 211.1 first pressing plates, 212 second electric push rods, 213 locking sleeves, 213.1 inner lower splines, 213.2 inner upper splines, 213.3 convex blocks, 214 inner rods, 214.1 second splines, 214.2 grooves, 214.3 driving rods, 215.1 first horns, 215.2 second horns, 216 outer rods, 216.1 front long holes, 216.2 rear long holes, 217 first swing rods, 218 first supporting rods, 218.1 first inserting plates, 219 second pressing rods, 219.1 second pressing plates, 220 first electric push rods and 221 pneumatic rods;

3 chassis mechanism, 301 bottom plate, 301.1 control center, 301.2 battery pack, 302 first elastic rod, 303 first upper link, 304 first lower link, 305 left rear leg rod, 306 left rear wheel, 307 right rear wheel, 308 right rear leg rod, 309 second lower link, 310 second upper link, 311 second elastic rod, 312 chassis inclinometer, 313 third elastic rod, 314 third upper link, 315 third lower link, 316 right front leg rod, 317 right front wheel, 318 fourth upper link, 319 fourth lower link, 320 left front wheel, 321 left front leg rod, 322 fourth elastic rod;

4 handrail frame mechanism, 4.1 left hand lever, 4.11 left side are dialled the cover, 4.12 left touch sensor, 4.2 right handles, 4.21 right side are dialled the cover, 4.22 right touch sensor, 4.3 touch display screen.

Detailed Description

The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.

As shown in fig. 1, 2 and 3, the dual-seat intelligent electric baby carriage comprises a first seat 1.1, a second seat 1.2, a frame mechanism 2, a chassis mechanism 3 and an armrest frame 4, and is characterized in that: the first seat 1.1 and the second seat 1.2 can automatically adjust the pitching inclination angle, so that the two seats can always keep a horizontal state when the baby carriage goes up and down, the two seats can provide a comfortable sitting and lying space for the baby, a flat plane can be formed inside the two seats to facilitate the baby to lie and play, the backrest inclination angle of the first seat 1.1 can be adjusted according to the preference of the baby, a table plate mechanism on the first seat can be taken as two side guard plates after being stored, the toy and food can be placed for the baby after being unfolded, the height of a seat plate of the second seat 1.2 can be adjusted according to the body shape of the baby, the upper end of the frame mechanism 2 is connected and separated with the first seat 1.1 and the second seat 1.2 through a modularized quick-plugging structure, the frame mechanism 2 realizes the height adjustment of the two seats through a telescopic structure, the circumferential rotation of the two seats can also be realized, and the interestingness when the baby is seated is increased, meanwhile, the transverse cradle function of the first seat 1.1 and the transverse cradle function of the second seat 1.2 can be realized according to the pendulum effect, the lower end of the frame mechanism 2 is fixedly connected with the chassis mechanism 3, the lower end of the armrest frame 4 is fixedly connected with the chassis mechanism 3, four wheels arranged below the chassis mechanism 3 are all independently suspended so as to improve the damping performance and the passing performance of the chassis mechanism 3 and provide a more comfortable riding environment for infants, and the intelligent control system can not only play cradle music for infants, but also enable parents to easily realize the control of the baby carriage through the armrest frame 4.

As shown in fig. 4, 5, 6, 7, 8, 9, and 10, the first seat 1.1 includes a support frame 101, a sliding plate 102, a seat plate 103, a right sliding block 106, a right connecting rod 107, a right connecting rod 108, a right three connecting rod 109, a left sliding block 110, a first slot frame 111, a first button 112, a first hook 115, a right hook 116, a right sliding frame 117, a right connecting rod 118, a first hook spring 119, a first set screw 120, a right elastic sheet 121, a left hook 122, a left sliding frame 123, a left connecting rod 124, a left elastic sheet 125, a right cover 126, a left cover 127, a turning plate 133, a left three connecting rod 134, a left two connecting rod 135, a left connecting rod 136, a first seat inclinometer 137, a table mechanism, and a seat plate driving mechanism, the support frame 101 is a main body support structure of the first seat 1.1, the upper limit column 101.2, the lower limit column 101.3, and the lower limit plate 101.1 are disposed at two sides of the support frame 101, the upper side of the supporting plate 101.1 and the lower side of the sliding plate 102 form a sliding pair through a guide rail slider group, the lower side of the seat plate 103 and the upper side of the sliding plate 102 form a sliding pair through a guide rail slider group, the upper side of the seat plate 103 is provided with four upright posts, wherein a transverse handrail is arranged between the two upright posts at the front end, the two upright posts at the rear end are respectively provided with a left guide rail 103.1 and a right guide rail 103.2, the left slider 110 can slide on the left guide rail 103.1, the lower end of a left connecting rod 136 and the left side of the turning plate 133 form a rotating pair, the upper end of the left connecting rod 136 and the left end of the left slider 110 and the left end of a left connecting rod 135 form a rotating pair, the lower end of a left three connecting rod 134 and the left side of the turning plate 133 form a rotating pair, the right slider 106 can slide on the right guide rail 103.2, the lower end of a right connecting rod 107 and the right side of the turning, the upper end of the connecting rod and the right end of the right two connecting rods 108 form a revolute pair; the left first connecting rod 136, the left second connecting rod 135 and the left third connecting rod 134 form a left guardrail, the right connecting rod 107, the right second connecting rod 108 and the right third connecting rod 109 form a right guardrail, and the guardrails on the two sides are used for protecting infants and children from falling from the first seat 1.1.

Two guide rails are arranged on two sides of the rear end of the support frame 101, the left sliding frame 123 can slide on the left guide rail, the left side of the left sliding frame 123 is provided with an upper sliding frame limiting column 123.1 and a lower sliding frame limiting column 123.2, the rear end of the left plate connecting rod 124 is provided with a shifting rod 124.1 and forms a revolute pair with the left sliding frame 123, the left clamping hook 122 is arranged at the left lower end of the rear side of the support frame 101 and forms a revolute pair, the upper end of the left clamping hook 122 is positioned at the rear side of the shifting rod 124.1, a left elastic sheet 125 is arranged between the lower end of the left clamping hook 122 and the support frame 101, the left sliding frame 123 at the initial position of the lower end can be clamped by the left clamping hook 122 under the elastic action of the left elastic sheet; the right sliding frame 117 can slide on a guide rail on the right side of the rear end of the support frame 101, a sliding frame upper limiting column and a sliding frame lower limiting column are arranged on the right side of the right sliding frame 117, a shifting lever is arranged at the rear end of the right plate connecting rod 118 and forms a revolute pair with the right sliding frame 117, the right clamping hook 116 is installed at the right lower end of the rear side of the support frame 101 and forms a revolute pair, the upper end of the right clamping hook 116 is located at the rear side of the shifting lever of the right plate connecting rod 118, a right elastic sheet 121 is installed between the lower end of the right clamping hook 116 and the support frame 101, the right sliding frame 117 located at the initial position of the lower end can be clamped by the right clamping hook 116 under the elastic action of the.

In the initial state, the seat plate 103 and the flap 133 form a plane for the infant to lie down and play, and the left sliding frame 123 and the right sliding frame 117 are at the lowest positions and are respectively blocked by the left hook 122 and the right hook 116.

When the backrest needs to be lifted, the seat driving mechanism is operated to enable the seat 103 to move backwards, the turning plate 133 also moves backwards, the rear end of the turning plate 133 pushes the left plate connecting rod 124 and the right plate connecting rod 118 to rotate clockwise until the left plate connecting rod 124 contacts the upper limit column 123.1 of the carriage, the right plate connecting rod 118 contacts the upper limit column of the carriage of the right sliding frame 117, in the process, the driving rod 124.1 of the left plate connecting rod 124 and the driving rod of the right plate connecting rod 118 respectively pull the upper end of the left clamping hook 122 and the upper end of the right clamping hook 116 backwards to enable the left sliding frame 123 and the right sliding frame 117 to rotate clockwise and release the clamping of the left sliding frame 123 and the right sliding frame 117, then the seat 103 continues to move backwards, the rear end of the turning plate 133 respectively pushes the left sliding frame 123 and the right sliding frame 117 to slide upwards through the left plate connecting rod 124 and the right sliding frame connecting rod 118 until the turning plate 133 reaches a proper inclination angle, the movement of, enabling infants to lean comfortably; when the inclination angle of the turning plate 133 needs to be relieved, the seat driving mechanism is operated to enable the seat 103 to move forwards until the seat 103 and the turning plate 133 form a plane.

First slot frame 111 passes through the screw fastening and installs in support frame 101 rear side upper end, its right side upper end is equipped with the rectangle recess, rectangle recess upper end is equipped with the jack of two rectangles, first slot frame 111 lower extreme inside is equipped with couple cavity and horizontal button hole, first couple 115 is installed in the couple cavity, and can slide from top to bottom in the couple cavity, first couple 115 upper end is equipped with the inclined plane structure, the intermediate position is equipped with the rectangle trompil, first button 112 downside is equipped with the inclined plane, first button 112 passes the rectangle trompil in the middle of first couple 115 and installs in first slot frame 111's button hole, first slot frame 111 lower extreme is equipped with two and the communicating screw hole of couple cavity, two first holding screws 120 are installed respectively in two screwed holes, two first couple springs 119 set up respectively between two first holding screws 120 and first couple 115.

In an initial state, under the action of the elastic force of the first hook spring 119, the first hook 115 is positioned at the upper end of the hook cavity, the inclined plane structure at the upper end of the first hook 115 extends into the rectangular groove at the upper end of the right side of the first slot frame 111, and the inclined plane at the lower side of the first button 112 is pressed leftwards to push the first hook 115 to move downwards, so that the inclined plane structure at the upper end of the first hook 115 retracts into the hook cavity; after releasing the pressing of the first button 112, the first hook 115 is restored to the original position by the elastic force of the first hook spring 119.

The first set screw 120 and the first slot frame 111 form a screw pair connection, and the compression amount of the first hook spring 119 can be changed by adjusting the position of the first set screw 120, so that the pressing and rebounding force of the first button 112 can be adjusted.

The table plate mechanism comprises a right inner plate 104, a right outer plate 105, a left inner plate 114 and a left outer plate 113, a first baffle groove 103.3 and a second baffle groove 103.4 are arranged between two upright posts on the left side of the seat plate 103, the upper end of the left outer plate 113 and the upper ends of the two upright posts on the left side form a revolute pair, the upper end of the left inner plate 114 is arranged in the left outer plate 113 and forms a revolute pair, and the lower end of the left inner plate 114 is provided with a left plate handle 114.1 and a left plate hook 114.2; a third baffle groove 103.5 and a fourth baffle groove 103.6 are arranged between two upright posts on the right side of the seat plate 103, the upper end of a right outer plate 105 and the upper ends of the two upright posts on the right side form a revolute pair, the upper end of a right inner plate 104 is arranged inside the right outer plate 105 and forms a revolute pair, and the lower end of the right inner plate 104 is provided with a right plate handle 104.1 and a right plate hanging rod 104.2.

In an initial state, the left outer plate 113 is in a vertical state under the action of gravity, the left inner plate 114 is contracted inside the left outer plate 113, and the lower end of the left inner plate is clamped into the first retaining groove 103.3 and the second retaining groove 103.4, so that the left inner plate 114 and the left outer plate 113 cannot swing left and right to form a guard plate on the left side of the first seat 1.1; the right outer plate 105 is in a vertical state under the action of gravity, the right inner plate 104 is contracted inside the right outer plate 105, and the lower end thereof is clamped into the third catch groove 103.5 and the fourth catch groove 103.6, so that the right inner plate 104 and the right outer plate 105 cannot swing left and right, and become a guard plate on the right side of the first seat 1.1.

When the desk is needed to be used, the left plate handle 114.1 is pulled upwards to enable the lower end of the left inner plate 114 to be separated from the first blocking groove 103.3 and the second blocking groove 103.4, the left inner plate 114 and the left outer plate 113 are turned upwards and the left inner plate 114 is pulled outwards, meanwhile, the right plate handle 104.1 is pulled upwards to enable the lower end of the right inner plate 104 to be separated from the third blocking groove 103.5 and the fourth blocking groove 103.6, the right inner plate 104 and the right outer plate 105 are turned upwards and the right inner plate 104 is pulled outwards, the left plate hook 114.2 hooks the right plate hanging rod 104.2, the left inner plate 114 and the right inner plate 104 are placed horizontally, the left inner plate 114 and the right inner plate 104 are mutually abutted, and a desk mechanism formed by the left inner plate 114, the left outer plate 113, the right inner plate 104 and the right outer plate 105 is kept in a horizontal state; when the table board mechanism needs to be stored, the connecting position of the left inner board 114 and the right inner board 104 is moved upwards, the left board hook 114.2 is released from the right board hanging rod 104.2, and the left inner board 114, the left outer board 113, the right inner board 104 and the right outer board 105 are restored to the initial state, so that the storage process of the table board mechanism can be completed.

The seat plate driving mechanism comprises a first guide wheel 102.1, a second guide wheel 102.2, a third guide wheel 102.3, a fourth guide wheel 102.4, a lead screw 128, a hand wheel 128.1, a first rope 129, a second rope 130, a third rope 131 and a fourth rope 132, the fourth guide wheel 102.4 is installed on the left side of the front end of the sliding plate 102 and forms a revolute pair, the first guide wheel 102.1 is installed on the right side and forms a revolute pair, the second guide wheel 102.2 and the third guide wheel 102.3 are installed on the rear end of the sliding plate 102 and form a revolute pair, a screw hole 102.5 is formed in the middle of the rear end of the sliding plate 102, the lead screw 128 is installed in the middle of the rear end of the supporting frame 101 and forms a revolute pair, a threaded structure at the front end of the lead screw 128 is matched with the screw hole 102.5 to form a threaded pair.

The upper end of a first rope 129 is fixedly connected with the rear end of the seat plate 103, the lower end of the first rope winds around a first guide wheel 102.1 and is fixedly connected with the rear end of the support frame 101, the upper end of a second rope 130 is fixedly connected with the rear end of the seat plate 103, the lower end of the second rope winds around a second guide wheel 102.2 and is fixedly connected with the front end of the support frame 101, the upper end of a third rope 131 is fixedly connected with the rear end of the seat plate 103, the lower end of the third rope winds around a third guide wheel 102.3 and is fixedly connected with the front end of the support frame 101, the upper end of a fourth rope 132 is fixedly connected with the rear end of the seat plate 103, and.

When the hand wheel 128.1 is rotated clockwise, the lead screw 128 drives the slide plate 102 to move backwards through the screw hole 102.5, and the upper ends of the second rope 130 and the third rope 131 move backwards under the push of the second guide wheel 102.2 and the third guide wheel 102.3, so that the seat plate 103 realizes the action of moving backwards.

When the hand wheel 128.1 is rotated counterclockwise, the lead screw 128 drives the slide plate 102 to move forward through the screw hole 102.5, and the upper ends of the first rope 129 and the fourth rope 132 move forward under the push of the first guide wheel 102.1 and the fourth guide wheel 102.4, so that the seat plate 103 realizes the action of moving forward.

The screw pair formed by the lead screw 128 and the screw hole 102.5 has a self-locking function, so that the movement of the sliding plate 102 can be controlled only by the rotation of the hand wheel 128.1, and the winding connection structure of the first rope 129, the second rope 130, the third rope 131 and the fourth rope 132 can ensure that the movement of the seat plate 103 can be controlled only by the movement of the sliding plate 102 and can not move spontaneously.

As shown in fig. 11, 12, 13, 14, the second seat 1.2 includes a frame 1001, a backrest 1002, a flap 1003, a link plate 1004, a pressure spring screw 1005, a top ball spring 1006, a top ball 1007, a spring plate 1008, a top hook 1009, a positioning frame 1010, a second slot frame 1011, a second button 1012, a second hook 1013, a second hook spring 1014, a second set screw 1015, a second seat inclinometer 1016, the frame is a main body supporting structure of the second seat 1.1001, mesh enclosures with good ventilation are arranged on both sides of the frame 1001, a transverse armrest and a vertical baffle are arranged on the front end of the frame for protecting the safety of infants, two rectangular square holes with round corners are longitudinally arranged on the bottom side of the frame 1001, two link plates 1004 form a rotation pair with the flap 1003 and the frame 1001, so that the flap 1003 and the frame 1001 form a rotation connection, two guide rods 1001.2 are arranged inside the rear end of the frame 1001, two guide holes arranged on the rear side of the backrest 1002 are matched with two guide rods 1001.2, the backrest 1002 can slide up and down relative to the frame 1001, and the shape and the size of the seat plate 1002.1 arranged at the bottom end of the backrest 1002 are the same as those of the rectangular square hole at the rear end of the bottom side of the frame 1001.

In the initial state, the flap 1003 is turned forward to cover the rectangular square hole at the front end of the frame 1001, and the backrest 1002 is at the lowest position to allow the seat plate 1002.1 to cover the rectangular square hole at the rear end of the frame 1001, so that the bottom of the second seat 1.2 forms a flat plane for the infant to lie down and play.

The second slot frame 1011 is fastened and connected with the upper end of the rear side of the frame 1001 by screws, the upper end of the right side of the second slot frame 1011 is provided with a rectangular groove, the upper end of the rectangular groove is provided with two rectangular jacks, the lower end of the second slot frame 1011 is internally provided with a hook cavity and a transverse button hole, the second hook 1013 is arranged in the hook cavity, and can slide up and down in the cavity of the hook, the upper end of the second hook 1013 is equipped with a slope structure, the middle position is equipped with a rectangular opening, the lower side of the second button 1012 is equipped with a slope, the second button 1012 passes through the rectangular opening in the middle of the second hook 1013 and is installed in the button hole of the second slot frame 1011, the lower end of the second slot frame 1011 is equipped with two threaded holes communicated with the cavity of the hook, two second set screws 1015 are installed in the two threaded holes respectively, and two second hook springs 1014 are installed between the two second set screws 1015 and the second hook 1013 respectively.

In an initial state, under the action of the elastic force of the second hook spring 1014, the second hook 1013 is located at the upper end of the hook cavity, the inclined plane structure at the upper end of the second hook 1013 extends into the rectangular groove at the upper end of the right side of the second slot bracket 1011, and the lower inclined plane of the second button 1012 is pressed leftwards to push the second hook 1013 to move downwards, so that the inclined plane structure at the upper end of the second hook 1013 retracts into the hook cavity; after releasing the pressing of the second button 1012, the second hook 1013 is restored to the original position by the elastic force of the second hook spring 1014.

The second set screw 1015 and the second slot frame 1011 form a screw pair connection, and the compression amount of the second hook spring 1014 can be changed by adjusting the position of the second set screw 1015, so that the pressing and rebounding force of the second button 1012 can be adjusted.

The rear end of a frame 1001 is provided with a cavity structure, the lower end of the front side of the cavity structure is provided with a rotatable lower retaining wheel 1001.1, the rear side of the cavity structure is longitudinally provided with a ratchet bar 1001.3, the upper end of a ratchet bar 1001.3 is provided with a rotatable upper retaining wheel 1001.4, a positioning frame 1010 is fixedly connected with a backrest 1002 through screws, the front side of a top hook 1009 is provided with a front top surface 1009.1, the lower end of the rear side is provided with a rear top surface 1009.2, the top hook 1009 is arranged in the positioning frame 1010 and forms a revolute pair, two spring pieces 1008 are arranged between the positioning frame 1010 and the top hook 1009, the top hook 1009 has a tendency of anticlockwise rotation under the elastic force of the spring pieces 1008, the top end of the positioning frame 1010 is provided with a threaded hole, a top ball 1007 is arranged at the lower end of the threaded hole and extends downwards, a pressure spring screw 1005 is arranged at the upper end of the threaded hole through a thread pair, a top ball spring 1006, thereby adjusting the resilience of the top bead 1007, and the lower end of the top hook 1009 can be engaged with the teeth of the ratchet bar 1001.3, thereby realizing the positioning of the height position of the backrest 1002.

In an initial state, under the action of the elastic force of the spring piece 1008, the top end of the top hook 1009 is positioned on the left side of the top bead 1007; when the height of the seat plate 1002.1 needs to be adjusted, the backrest 1002 is pulled upwards, the lower end of the top hook 1009 can jump from bottom to top between the teeth of the ratchet bar 1001.3, the upper end of the top hook 1009 is always located in the left area of the top bead 1007 in the process, the backrest 1002 stops being pulled upwards after the seat plate 1002.1 moves to a proper height position, the lower end of the top hook 1009 can be clamped between the teeth of the corresponding ratchet bar 1001.3 and cannot move downwards, and therefore the height adjustment and the positioning of the seat plate 1002.1 are completed.

When the height of the seat plate 1002.1 needs to be lowered, the backrest 1002 is pulled upwards to the highest position, in the process, the front top surface 1009.1 of the top hook 1009 moves upwards and contacts the upper stop wheel 1001.4, under the pushing of the upper stop wheel 1001.4, the top hook 1009 rotates clockwise, so that the upper end of the top hook compresses and crosses the top bead 1007 and reaches the right section of the top bead 1007, under the blocking action of the top bead 1007, the upper end of the top hook 1009 cannot pass through the top bead 1007 to the left section spontaneously, at the moment, the lower end of the top hook 1009 is disengaged from the ratchet rack 1001.3, so that the seat plate 1002.1 can slide downwards smoothly, when the seat plate 1002.1 slides to the lowest position, the lower stop wheel 1001.1 abuts against the rear top surface 1009.2 of the top hook 1009, under the pushing action of the lower stop wheel 1001.1, the top hook rotates anticlockwise, the upper end of the top hook compresses and crosses the top bead 1007 to the left section, so that the initial state is recovered, and the seat plate 1002.1 can be adjusted to the proper height continuously.

As shown in fig. 15, 16, 17, 18, and 19, the frame mechanism 2 includes a fixed seat 201, a direct drive motor 202, a second support rod 203, a second swing rod 204, a second cradle insertion rod 205, a second insertion rod spring 206, a second locking wrench 207, a first locking wrench 208, a first insertion rod spring 209, a first cradle insertion rod 210, a first pressing rod 211, a second electric push rod 212, a locking sleeve 213, an inner rod 214, a first horn 215.1, a second horn 215.2, an outer rod 216, a first swing rod 217, a first support rod 218, a second pressing rod 219, a first electric push rod 220, and a pneumatic rod 221, wherein the left side of the first support rod 218 is a rectangular plate structure, the upper end of the rectangular plate structure is provided with two insertion plates 218.1, the upper end of the first support rod 218 and the left end of the first swing rod 217 form a rotation pair, the first electric push rod 220 is installed between the lower end of the first support rod 218 and the lower end of the first swing rod 217 and forms a rotation pair with the rear both, the first swing rod 217 and the first swing rod 217 form a rotation pair, a round hole is vertically arranged on the upper side of the round shaft structure, the round shaft structure and the front end of the upper side of the outer rod 216 form a revolute pair through a bearing, a stepped round hole is vertically arranged on the front end of the upper side of the outer rod 216, the first cradle inserted bar 210 is coaxially arranged in the stepped round hole and forms a revolute pair, the first inserted bar spring 209 is arranged between the upper end of the outer rod 216 and the first cradle inserted bar 210, and the lower end of the first locking wrench 208 and the upper end of the first cradle inserted bar 210 form a revolute pair; the right side of the second supporting rod 203 is of a rectangular plate structure, two insert plates 203.1 are arranged at the upper end of the rectangular plate structure, the upper end of the second supporting rod 203 and the right end of the second swing rod 204 form a revolute pair, a second electric push rod 212 is arranged between the lower end of the second supporting rod 203 and the lower end of the second swing rod 204 and forms a revolute pair with the second supporting rod, the left end of the second swing rod 204 is of a round shaft structure, a round hole is vertically formed in the round shaft structure in the upper side of the round shaft structure, the round shaft structure and the rear end of the upper side of the outer rod 216 form a revolute pair through a bearing, a stepped round hole is vertically formed in the rear end of the upper side of the outer rod 216, the second cradle insert rod 205 is coaxially arranged in the stepped round hole and forms a moving pair, a second insert rod spring 206 is arranged between the upper end of the outer rod 216 and.

The left rectangular plate structure of the first support rod 218 can be embedded into the rectangular groove of the first slot frame 111, the two insert plates 218.1 at the upper end of the rectangular plate structure are inserted into the two rectangular insert holes at the upper end of the rectangular groove of the first slot frame 111, and the first hook 115 can hook the lower edge of the rectangular plate structure, so that the modular connection of the first seat 1.1 and the frame mechanism 2 is realized; the first hook 115 can be retracted by pressing the first button 112, so that the connection between the first seat 1.1 and the frame mechanism 2 can be released; the principle of connection of the second seat 1.2 to the frame mechanism 2 via the second strut 203 is the same as described above.

In an initial state, the first locking wrench 208 is in a vertical state, the first cradle insert bar 210 is inserted downwards into the circular hole at the upper side of the circular shaft structure at the right end of the first swing rod 217 under the elastic force of the first insert bar spring 209, so as to lock the cradle function of the first seat 1.1, and after the first locking wrench 208 is pulled forwards to a horizontal state, the first cradle insert bar 210 moves upwards and is separated from and maintained in the circular hole at the upper side of the circular shaft structure at the right end of the first swing rod 217, so that the cradle function of the first seat 1.1 can be recovered.

In an initial state, the second locking wrench 207 is in a vertical state, the second cradle insert bar 205 is inserted downward into the circular hole at the upper side of the circular shaft structure at the left end of the second swing link 204 under the elastic force of the second insert bar spring 206, so as to lock the cradle function of the second seat 1.2, and after the second locking wrench 207 is pulled backward to a horizontal state, the second cradle insert bar 205 moves upward and is separated from and held in the circular hole at the upper side of the circular shaft structure at the left end of the second swing link 204, so as to restore the cradle function of the second seat 1.2.

The inner rod 214 is arranged inside the outer rod 216, the inner rod and the outer rod form a moving pair, a vent valve switch is arranged at the top end of the air pressure rod 221, the air pressure rod 221 can be extended by pressing the vent valve switch, the lower end of the air pressure rod 221 is arranged at the lower end inside the inner rod 214, the upper end of the air pressure rod is arranged at the upper end inside the outer rod 216, the outer rod 216 is provided with a front long hole 216.1 and a rear long hole 216.2, a first pressing plate 211.1 is arranged on the left side of the first pressing rod 211, the rear end of the first pressing rod and the inner rod 214 form a rotating pair, the front end of the first pressing rod and the inner rod 214 can swing up and down in the front long hole 216.1, a second pressing plate 219.

When the first seat 1.1 and the second seat 1.2 are in an unloaded state, the first pressing rod 211 or the second pressing rod 219 can be pressed downwards to enable the first pressing plate 211.1 or the second pressing plate 219.1 to press the vent valve switch at the top end of the pneumatic rod 221 downwards, the pneumatic rod 221 can be freely extended, the outer rod 216 can be moved upwards, and therefore the first seat 1.1 and the second seat 1.2 can be lifted.

When the first seat 1.1 and the second seat 1.2 are in an unloaded state, the first pressing rod 211 or the second pressing rod 219 is pressed downwards, the outer rod 216 is pressed downwards, the pneumatic rod 221 can be shortened, the first pressing rod 211 and the second pressing rod 219 are released, the length of the pneumatic rod 221 is locked, and therefore the height of the first seat 1.1 and the height of the second seat 1.2 are lowered.

The lower end of the inner rod 214 forms a revolute pair with the fixed seat 201 through two deep groove ball bearings and a thrust ball bearing, a second spline 214.1 is arranged at the position close to the lower end of the inner rod 214, the left side of each tooth of the second spline 214.1 is of a flat structure, the lower half part of the right side is provided with a bulge, the top end of each bulge is provided with a groove 214.2, the upper end inside the locking sleeve 213 is provided with an inner upper spline 213.2, the right side of the lower end of each tooth of the inner upper spline 213.2 is provided with a convex block 213.3, the top end of the fixed seat 201 is provided with a first spline 201.1, the locking, and the inner upper spline 213.2 is fitted with the second spline 214.1, and the locking sleeve 213 can move up and down and rotate with respect to the inner rod 214, that is, the locking sleeve 213 can rotate relative to the inner rod 214 when in the up position, the locking sleeve 213 can only move relative to the inner rod 214 when in the down position, the inner lower spline 213.1 is arranged at the lower end in the locking sleeve 213, and the inner lower spline 213.1 can be matched with and separated from the first spline 201.1.

When the relative rotation of the inner rod 214 and the fixed seat 201 needs to be locked, the locking sleeve 213 is moved upwards to the highest position, then the locking sleeve 213 is rotated anticlockwise, each key tooth of the inner upper spline 213.2 is attached to the left flat surface of each key tooth of the second spline 214.1, then the locking sleeve 213 is moved downwards to the lower position, the inner lower spline 213.1 is meshed with the first spline 201.1, the locking sleeve 213 cannot rotate relative to the inner rod 214 and the fixed seat 201 due to the meshing relationship of the splines when in the lower position, and the locking sleeve 213 is always in the lower position under the action of self gravity, so that the relative rotation of the inner rod 214 and the fixed seat 201 can be stably locked.

When the relative rotation of the inner rod 214 and the fixing seat 201 needs to be unlocked, the locking sleeve 213 is moved upwards to the highest position, the inner lower spline 213.1 is meshed with and disengaged from the first spline 201.1, then the locking sleeve 213 is rotated clockwise, the right side of the spline tooth of the inner upper spline 213.2 is attached to the spline tooth side above the groove 214.2, then the locking sleeve 213 is moved downwards, the lug 213.3 is clamped into the groove 214.2 and is matched, so that the locking sleeve 213 cannot rotate, and the situation that the rotation of the inner rod 214 is suddenly locked and danger is caused because the locking sleeve 213 falls into the lower position due to equipment vibration or artificial mistaken collision in the rotation process of the inner rod 214 is avoided.

The direct drive motor 202 is installed in the center of the inside of the fixing seat 201, the driving rod 214.3 arranged at the lower end of the inner rod 214 is tightly connected with the rotor of the direct drive motor 202, and the direct drive motor 202 can drive the inner rod 214 to rotate, so that the first seat 1.1 and the second seat 1.2 can achieve the effect of a Trojan horse, and the interestingness of the infant when the infant is seated is increased.

As shown in fig. 20, the chassis mechanism 3 includes a bottom plate 301, a control center 301.1, a battery pack 301.2, a first spring rod 302, a first upper link 303, a first lower link 304, a left rear leg rod 305, a left rear wheel 306, a right rear wheel 307, a right rear leg rod 308, a second lower link 309, a second upper link 310, a second spring rod 311, a chassis inclinometer 312, a third spring rod 313, a third upper link 314, a third lower link 315, a right front leg rod 316, a right front wheel 317, a fourth upper link 318, a fourth lower link 319, a left front wheel 320, a left front leg rod 321, and a fourth spring rod 322, the bottom plate 301 is a supporting body of the chassis mechanism 3, a rotation pair is formed by the front end of the left front leg rod 321 and the upper end of the left front wheel 320, a rotation pair is formed by the rear end of the fourth upper link 318 and the left side of the front end of the bottom plate 301, a rotation pair is formed by the rear end of the fourth lower link 319 and the front end of the fourth upper link 318, the lower end and the left front leg rod 321 form a revolute pair, the fourth elastic rod 322 is internally provided with a spring, the rear end and the upper side of the bottom plate 301 form a revolute pair, and the front end of the fourth upper connecting rod 318 form a revolute pair; the front end of the right front leg rod 316 and the upper end of the right front wheel 317 form a revolute pair, the rear end of the right front leg rod and the right side of the front end of the bottom plate 301 form a revolute pair, the rear end of the third upper connecting rod 314 and the right side of the front end of the bottom plate 301 form a revolute pair, the upper end of the third lower connecting rod 315 and the front end of the third upper connecting rod 314 form a revolute pair, the lower end of the third lower connecting rod and the right front leg rod 316 form a revolute pair, the rear end of the third elastic rod 313 is provided with a spring, the rear end of the third elastic rod and the upper side of the bottom.

The front end of the left rear leg rod 305 and the left side of the rear end of the bottom plate 301 form a revolute pair, the rear end of the left rear leg rod is provided with a left rear wheel 306, the front end of the first upper connecting rod 303 and the left side of the rear end of the bottom plate 301 form a revolute pair, the upper end of the first lower connecting rod 304 and the rear end of the first upper connecting rod 303 form a revolute pair, the lower end of the first lower connecting rod 304 and the left rear leg rod 305 form a revolute pair, the front end of the first elastic rod 302 is internally provided with a spring, the front end of the first elastic rod and the upper side of the bottom plate; the front end of the right rear leg rod 308 and the right side of the rear end of the bottom plate 301 form a revolute pair, the rear end of the right rear leg rod is provided with a right rear wheel 307, the front end of the second upper connecting rod 310 and the right side of the rear end of the bottom plate 301 form a revolute pair, the upper end of the second lower connecting rod 309 and the rear end of the second upper connecting rod 310 form a revolute pair, the lower end of the second lower connecting rod and the right rear leg rod 308 form a revolute pair, the front end of the second elastic rod 311 is provided with a built-in spring, the front end of the second elastic rod and the upper side of the.

As shown in fig. 1, 21 and 22, the lower end of the armrest frame 4 is fastened and connected with the rear end of the bottom plate 301 through screws, the left side of the upper end is provided with a left handle 4.1, the front end of the left handle 4.1 is provided with a left shifting sleeve 4.11, a D gear, an N gear and an R gear, wherein the D gear is a forward gear, the N gear is a neutral gear, the R gear is a reverse gear, the left shifting sleeve 4.11 is provided with a pointer for indicating a current gear, the rear end of the left handle 4.1 is provided with a left touch sensor 4.12 in a wavy shape for monitoring whether the left handle 4.1 is held, the right side of the upper end of the armrest frame 4 is provided with a right handle 4.2, the front end of the right handle 4.2 is provided with a right shifting sleeve 4.21 and scale marks, the left end of the scale marks is 0 scale mark, the right end is 5 scale marks, the scale marks are gradually increased from left to right, the right end of the right shifting sleeve 4.21 is initially located at 0 scale mark, the right scale mark can be automatically zeroed after the right shifting sleeve 4.21 is, for monitoring whether the right handle 4.2 is held; the touch display screen 4.3 is arranged at the upper end of the armrest frame 4 and can be used for displaying and setting various functions and parameters of the baby carriage.

As shown in fig. 23, the stroller has an intelligent operating system, a chassis inclinometer 312 is installed on the upper side of the bottom plate 301 for monitoring the pitch angle of the bottom plate 301 in real time, a battery pack 301.2 is fixedly installed on the front end of the lower side of the bottom plate 301 for providing power energy for the stroller, and a control center 301.1 is fixedly installed on the rear end of the lower side of the bottom plate 301 and internally integrated with an intelligent processor for regulating and controlling various parameters of the stroller; the control center 301.1 is a core processing unit of the operating system, and an intelligent processor therein can process data information acquired by the first seat inclinometer 137, the second seat inclinometer 1016, the chassis inclinometer 312, the left handle 4.1, the right handle 4.2 and the touch display screen 4.3, and then drive the first electric push rod 220, the second electric push rod 212, the direct drive motor 202, the left rear wheel 306 and the right rear wheel 307 to perform corresponding actions, and also can enable the first loudspeaker 215.1 and the second loudspeaker 215.2 to play corresponding music, and display system information on the touch display screen 4.3 in real time for parents to read, thereby realizing visual human-computer interaction.

The left touch sensor 4.12 is used for monitoring whether the left handle 4.1 is held in real time, and the right touch sensor 4.22 is used for monitoring whether the right handle 4.2 is held in real time; when the pointer of the left dial sleeve 4.11 indicates the N-range, the hub motors in the left rear wheel 306 and the right rear wheel 307 do not act, if the left touch sensor 4.12 or the right touch sensor 4.22 detects that the left handle 4.1 or the right handle 4.2 is held, at this time, the control center 301.1 releases the brakes inside the left rear wheel 306 and the right rear wheel 307, and parents can push the baby carriage to move manually; if the left touch sensor 4.12 and the right touch sensor 4.22 detect that the left handle 4.1 and the right handle 4.2 are not held, the control center 301.1 brakes the two wheels by the brake structures inside the left rear wheel 306 and the right rear wheel 307, so that the baby carriage can be stably stopped in place without being held by a person and cannot slide, and the safety of the baby carriage can be ensured.

When the baby carriage needs to move forwards, the pointer of the left dial sleeve 4.11 indicates a D gear, the pointer of the right dial sleeve 4.21 initially indicates a scale of 0, the left rear wheel 306 and the right rear wheel 307 do not act, the two wheels are braked by the brake structure in the left dial sleeve 4.21, after the right dial sleeve 4.21 rotates clockwise, the brakes in the left rear wheel 306 and the right rear wheel 307 are released, the baby carriage starts to rotate forwards, the baby carriage moves forwards, the moving speed of the baby carriage is higher as the scale value indicated by the pointer of the right dial sleeve 4.21 is higher, the highest speed of the forward movement of the baby carriage does not exceed 1.2m/s, so that a parent cannot catch up with the forward moving speed of the baby carriage to avoid danger, and the maximum acceleration of the forward movement of the baby carriage does not exceed 0.4m/s²So as to prevent the baby carriage from suddenly increasing the speed in the acceleration process and causing the danger of the parents taking off the hands.

When the baby carriage needs to back up backwards, the pointer of the left dial sleeve 4.11 indicates an R gear, the pointer of the right dial sleeve 4.21 initially indicates a scale of 0, the left rear wheel 306 and the right rear wheel 307 do not act, the two wheels are braked by the brake structure in the left rear wheel 306 and the right rear wheel 307, after the right dial sleeve 4.21 rotates clockwise, the brakes in the left rear wheel 306 and the right rear wheel 307 are released and rotate backwards, the baby carriage moves backwards, the moving speed of the baby carriage is faster when the scale value indicated by the pointer of the right dial sleeve 4.21 is larger, the highest moving speed of the baby carriage backwards does not exceed 0.3m/s, and the baby carriage is prevented from backing up backwardsThe maximum acceleration of the baby carriage backward does not exceed 0.3m/s because the degree of the baby carriage backward movement is larger than the speed of the parent backward movement so as to hit the parent²So as to prevent the baby carriage from having too fast speed change in the backward reversing process and colliding with parents who cannot back up.

When the baby carriage goes up a slope, the first seat 1.1 inclines upwards, the second seat 1.2 inclines downwards, and particularly an infant who takes the second seat 1.2 feels tension and discomfort, when the baby carriage goes down a slope, the first seat 1.1 inclines downwards, the second seat 1.2 inclines upwards, and particularly an infant who takes the first seat 1.1 feels tension and discomfort, therefore, in order to keep the two seats at the initial position all the time during going up and down the slope, the first electric push rod 220 and the second electric push rod 212 can respectively adjust the pitch angles of the first seat 1.1 and the second seat 1.2 in real time.

When the baby carriage is in an initial state, the first seat 1.1 and the second seat 1.2 are both in an initial position in a horizontal state, when the baby carriage is in an uphill slope or a downhill slope, the chassis inclinometer 312 detects the inclination angle of the bottom plate 301 and sends data to the control center 301.1, the control center 301.1 calculates and processes the data and then sends a motion command to the first electric push rod 220 and the second electric push rod 212 respectively to enable the first electric push rod 220 and the second electric push rod 212 to perform corresponding telescopic actions so as to adjust the initial positions of the first seat 1.1 and the second seat 1.2, the first seat inclinometer 137 and the second seat inclinometer 1016 can monitor whether the first seat 1.1 and the second seat 1.2 are kept at the initial positions in real time and send the real-time pitching angles of the two seats to the control center 301.1 respectively, after the control center 301.1 calculates and processes the data, the motion command is sent to the first electric push rod 220 and the second electric push rod 212 respectively to perform fine adjustment in real time, a negative feedback closed loop control system is formed, so that the first seat 1.1 and the second seat 1.2 are always kept at the initial positions, and the comfort of sitting of the infant is enhanced; the initial positions of the first seat 1.1 and the second seat 1.2 can be set individually according to the preference of the infant by touching the display screen 4.3.

The lateral cradle function of the first seat 1.1 and the second seat 1.2 is divided into two realization modes, namely a manual cradle and an automatic cradle:

when the cradle is manually operated: the first seat 1.1 can be manually shaken after the first locking wrench 208 is pulled forward to a horizontal position, and the second seat 1.2 can be manually shaken after the second locking wrench 207 is pulled backward to a horizontal position.

When the cradle is automatically cradled: the first locking wrench 208 is pulled forwards to a horizontal position, the second locking wrench 207 is pulled backwards to the horizontal position, the locking sleeve 213 is moved to an upper position, the projection 213.3 is clamped into the groove 214.2, the inner rod 214 can rotate relative to the fixing seat 201, and then the direct drive motor 202 drives the outer rod 216 to periodically swing left and right, so that the automatic cradle action of the first seat 1.1 and the second seat 1.2 is realized, and the swing parameters during the automatic cradle can be set through the touch display screen 4.3.

The first loudspeaker 215.1 and the second loudspeaker 215.2 can play the children songs, the ancient poems, the light music and the children stories according to the preference of the infants by operating the touch display screen 4.3, and the volume can be adjusted.

When the first seat 1.1 and the second seat 1.2 need to realize the hobbyhorse rotating function, the locking sleeve 213 is moved to the upper position, the protruding block 213.3 is clamped into the groove 214.2, so that the inner rod 214 can rotate relative to the fixed seat 201, and the rotating speed and the steering direction of the direct drive motor 202 can be set through the touch display screen 4.3, so that the first seat 1.1 and the second seat 1.2 realize the hobbyhorse rotating function, and the interestingness of the infant in the sitting process is increased.

The references to "front", "back", "left", "right", etc., are to be construed as being based on the orientation or positional relationship shown in the drawings or as would normally be placed upon use of the inventive article, and are intended to be descriptive only and not as indicating or implying that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.