阅读说明：本技术 一种多功能陪护床 (Multifunctional accompanying bed ) 是由 靳利敏 王芳新 张培苗 孙箫音 袁萍 高亚辉 于 2020-05-06 设计创作，主要内容包括：本发明提供了一种多功能陪护床,涉及医疗器械技术领域,解决了现有技术中存在的现有陪护床功能单一、操作不便的技术问题,包括可拆卸连接的第一床体和第二床体,所述第一床体包括支撑装置、传动装置、动力装置和移动装置,所述传动装置包括第一传动机构和第二传动机构,所述支撑装置包括依次可转动连接的背部支撑、臀部支撑和腿部支撑,所述背部支撑、所述臀部支撑和所述腿部支撑均通过所述第一传动机构与所述动力装置传动相连,所述移动装置通过所述第二传动机构与所述动力装置传动相连；本发明初始状态呈床的形态,变换形态时,仅需打开动力装置,支撑装置便可形成座椅,移动装置便可伸出并与地面接触,操作便捷,功能多样。(The invention provides a multifunctional accompanying and nursing bed, which relates to the technical field of medical instruments and solves the technical problems of single function and inconvenient operation of the existing accompanying and nursing bed in the prior art, and comprises a first bed body and a second bed body which are detachably connected, wherein the first bed body comprises a supporting device, a transmission device, a power device and a moving device, the transmission device comprises a first transmission mechanism and a second transmission mechanism, the supporting device comprises a back support, a hip support and a leg support which are sequentially and rotatably connected, the back support, the hip support and the leg support are all in transmission connection with the power device through the first transmission mechanism, and the moving device is in transmission connection with the power device through the second transmission mechanism; the invention is in the form of a bed in the initial state, when the form is changed, the supporting device can form a seat only by opening the power device, the moving device can extend out and contact with the ground, the operation is convenient and the functions are various.)

1. The utility model provides a multi-functional bed of accompanying and attending to which characterized in that, is including dismantling first bed body (1) and the second bed body (2) of connection, first bed body (1) includes strutting arrangement (11), transmission (12), power device (13) and mobile device (14), wherein:

the transmission device (12) comprises a first transmission mechanism (121) and a second transmission mechanism (122), the supporting device (11) comprises a back support (111), a hip support (112) and a leg support (113) which are rotatably connected in sequence, and the back support (111), the hip support (112) and the leg support (113) are all in transmission connection with the power device (13) through the first transmission mechanism (121);

the moving device (14) is in transmission connection with the power device (13) through the second transmission mechanism (122);

the power device (13) can drive the back support (111) and the leg support (113) to rotate through the first transmission mechanism (121), so that the support device (11) forms a chair, and meanwhile, the power device (13) can drive the moving device (14) to extend out and abut against the ground through the second transmission mechanism (122) so as to support the chair.

2. The multi-functional accompanying bed according to claim 1, wherein the first transmission mechanism (121) comprises a first support rod (1121), a second support rod (1212), a first transmission screw (1213), and a transmission sleeve (1214), wherein:

the first support rod (1121) is fixedly arranged at the bottom of the back support (111), and the transmission end of the first support rod (1121) inclines towards the direction away from the back support (111);

the second support rod (1212) is fixedly arranged at the bottom of the leg support (113), and the transmission end of the second support rod (1212) inclines towards the direction away from the leg support (113);

the first transmission screw rod (1213) is arranged below the hip support (112), and two ends of the first transmission screw rod (1213) are respectively and rotatably connected with the transmission end of the first support rod (1121) and the transmission end of the second support rod (1212);

the transmission sleeve (1214) is sleeved on the first transmission screw rod (1213), a first output gear (1215) is fixedly sleeved on the transmission sleeve (1214), and the first output gear (1215) is in transmission connection with the output end of the power device (13) and can rotate under the driving of the power device (13).

3. The multi-functional accompanying bed according to claim 1, wherein the second transmission mechanism (122) includes a second transmission screw (1221) and a link lifting assembly (1223), wherein:

a second output gear (1222) is fixedly sleeved at the middle position of the second transmission screw rod (1221), and the second output gear (1222) is in transmission connection with the output end of the power device (13);

the end part of the second transmission screw rod (1221) is in transmission connection with the connecting rod lifting assembly (1223), the moving device (14) is arranged on the connecting rod lifting assembly (1223), and the second transmission screw rod (1221) is driven by the power device (13) to rotate so that the connecting rod lifting assembly (1223) drives the moving device (14) to lift.

4. The multi-functional accompanying bed according to claim 3, wherein the link lifting assembly (1223) comprises a first link (12231), a second link (12232), a third link (12233), and a fourth link (12234), wherein:

first connecting rod (12231), second connecting rod (12232), third connecting rod (12233) with fourth connecting rod (12234) is rotatable coupling in proper order and forms four-bar linkage, four-bar linkage is including two transmission ends that set up relatively and two flexible ends that set up relatively, two of four-bar linkage the transmission end level sets up, two flexible end vertical settings of four-bar linkage, two transmission ends of four-bar linkage all are provided with the screw hole, the tip of second drive screw (1221) passes two the screw hole.

5. The multi-functional accompanying bed according to claim 4, wherein the moving device (14) comprises two main wheels (141) and two steering wheels (142), and a mounting beam is provided between corresponding telescopic ends of the lower portions of the two four-bar linkages, wherein:

the two main wheels (141) are respectively and oppositely arranged on two sides of the mounting beam;

the two steering wheels (142) are respectively and oppositely arranged on two sides of the mounting beam.

6. The multi-functional accompanying bed according to claim 1, wherein the second bed (2) comprises a first support assembly (21) and a second support assembly (22), wherein:

the number of the first supporting assemblies (21) is two, the second supporting assembly (22) is arranged between the two first supporting assemblies (21), the second supporting assembly (22) comprises a second supporting plate (221) and a lifting device (222), the lifting device (222) can push the second supporting plate (221) to rise, so that the first supporting assemblies (21) form a seat, and the second supporting assemblies (22) form a storage table.

7. The multi-functional accompanying bed according to claim 6, wherein the second supporting assembly (22) comprises a second bracket (224), the second bracket (224) is disposed at the bottom of the second supporting plate (221), the lifting device (222) comprises a lifting cylinder (2221), a supporting seat (2222) and a control handle (2223), wherein:

the supporting seat (2222) is arranged on the bottom surface of the second supporting plate (221);

the fixed end of the lifting cylinder (2221) is arranged on the second support (224), and the telescopic end of the lifting cylinder (2221) is connected with the supporting seat (2222);

the telescopic end of the lifting cylinder (2221) is provided with a switch bolt, and the control handle (2223) is arranged below the second supporting plate (221) and connected with the switch bolt.

8. The multi-functional bed of accompanying claims 7, wherein the lifting device (222) further comprises a guide device (223), the guide device (223) comprising a guide bar (2231) and a guide sleeve (2232), wherein:

one end of the guide rod (2231) is fixedly connected with the bottom surface of the second support plate (221), and the other end of the guide rod (2231) is inserted into the guide sleeve (2232) and can slide along the guide sleeve (2232);

the guide sleeve (2232) is arranged on the second bracket (224);

the number of the guide devices (223) is four, and four guide sleeves (2232) are respectively arranged at positions adjacent to four corners of the second supporting plate (221).

9. The multifunctional accompanying and attending bed as claimed in claim 1, wherein a limit strip (4) is wrapped at the edge of the leg support (113), a first slideway (1131) and a second slideway (1132) are provided on the leg support (113), a third slideway (211) is provided on the second bed body (2) at a position corresponding to the second slideway (1132), one end of the limit strip (4) is slidably disposed in the first slideway (1131), and the other end of the limit strip (4) can slide along the second slideway (1132) and the third slideway (211);

be provided with first locking part (51) on spacing strip (4), lie in on the second bed body (2) third slide (211) are kept away from the tip of second slide (1132) is provided with first locking part (52), first locking part (51) can with first locking part (52) can be dismantled continuously.

10. The multifunctional accompanying bed as claimed in claim 1, wherein the second bed body (2) is provided with a bed head body (3) in a connected manner, the bed head body (3) is provided with a mounting hole (31), and the edge of the opening of the mounting hole (31) extends inwards to form a limiting convex brim (311);

one end of a guide rod (8) is slidably inserted into the mounting hole (31), a limiting ring (81) is arranged on the guide rod (8), an elastic element (9) is sleeved on the guide rod (8), the elastic element (9) is arranged in the mounting hole (31), and two ends of the elastic element respectively abut against the limiting ring (81) and the limiting convex eaves (311);

the other end of the guide rod (8) is connected with a T-shaped limiting block (6), the T-shaped limiting block (6) comprises a transverse limiting block (61) and a longitudinal limiting block (62) vertically arranged in the middle of the transverse limiting block (61), the rotating end of the transverse limiting block (61) is connected with the guide rod (8), an arc-shaped guide groove (32) is arranged on the bed head body (3), two ends of the arc-shaped guide groove (32) are respectively communicated with an initial positioning hole (321) and a final positioning hole (322), the positioning end of the transverse limiting block (61) is connected with a positioning column (10), and the positioning column (10) is slidably arranged in the arc-shaped guide groove (32) and can be positioned in the initial positioning hole (321) or the final positioning hole (322);

the guide rod (8) is pulled and rotated, so that the positioning end of the T-shaped limiting block (6) slides along the arc-shaped guide groove (32) and is positioned into the termination positioning hole (322), the longitudinal limiting block (62) is wrapped on the edge of the back support (111), a second locking piece (71) is arranged on the longitudinal limiting block (62), a second locking piece (72) is arranged on the edge of the back support (111), and the second locking piece (71) can be detachably connected with the second locking piece (72).

Technical Field

The invention relates to the technical field of medical instruments, in particular to a multifunctional accompanying bed.

Background

The bed of accompanying and attending to is used by patient's family members rest usually, and traditional bed of accompanying and attending to is mostly only for folding bed, and the function is comparatively single, can't realize the application of many scenes, and what appear on the existing market can convert the multi-functional nursing bed of wheelchair state into, though have wheelchair and two kinds of states of bed, but should accompany and attend to conversion process between bed wheelchair, and the operation is comparatively troublesome, influences the use.

Disclosure of Invention

The invention aims to provide a multifunctional accompanying bed, which aims to solve the technical problems of single function and inconvenient operation of the existing accompanying bed in the prior art; the invention provides a plurality of technical effects which can be produced by a preferable technical scheme in a plurality of technical schemes (the first transmission mechanism comprises a first support rod, a second support rod, a first transmission screw rod and a transmission sleeve, the transmission sleeve is driven by a power device to rotate so as to drive the first transmission screw rod to move, and further respectively pull a back support connected with the first support rod and a leg support connected with the second support rod to move so as to form a seat, the second transmission mechanism comprises a second transmission screw rod and a connecting rod lifting assembly, the power device can drive the second transmission screw rod to rotate so as to drive the connecting rod lifting assembly to drive the moving device to lift, the connecting rod lifting assembly comprises a four-bar mechanism, the second transmission screw rod penetrates through two transmission ends of the four-bar mechanism, the distance between the two telescopic ends can be adjusted along with the rotation of the second transmission screw rod, the moving device comprises a main wheel and a steering wheel, the steering wheel is used for steering, the main wheel is used for supporting the whole body, and the main wheel are matched with each other to facilitate movement; the second bed body comprises a first supporting component and a second supporting component, the first supporting component can form a seat, the second supporting component can form a storage table, and the functions are various; the second supporting assembly comprises a second supporting plate and a lifting device, the lifting table can be formed, the lifting device comprises a lifting cylinder, a supporting seat and a control handle, the lifting cylinder provides lifting power for the second supporting plate, the supporting seat enables the supporting plate to be supported more firmly, and the control handle is used for lifting control of the lifting cylinder; the lifting device also comprises four guide devices which are respectively arranged at four corners of the second supporting plate, so that the lifting process is more stable; the edge of the leg support is provided with a limiting strip which can prevent the first bed body and the second bed body from mutually shifting in the connection state; the first locking piece and the first locking piece enable the first bed body and the second bed body to be disassembled and assembled and are convenient and fast to operate; the second bed body comprises a bed head body, a guide rod, a T-shaped limiting block, an elastic element and a positioning column are arranged on the bed head body, the first bed body and the bed head body can be connected only by pulling the guide rod, the operation is convenient and fast, and the first bed body and the bed head body can be effectively prevented from being mutually dislocated in a connection state after being connected; the second locking fastener and the second locking fastener enable the first bed body and the bed head body to be assembled and disassembled conveniently and the like; see below for details.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides a multifunctional accompanying and nursing bed, which comprises a first bed body and a second bed body which are detachably connected, wherein the first bed body comprises a supporting device, a transmission device, a power device and a moving device, wherein: the transmission device comprises a first transmission mechanism and a second transmission mechanism, the supporting device comprises a back support, a hip support and a leg support which are sequentially connected in a rotating mode, the back support, the hip support and the leg support are all in transmission connection with the power device through the first transmission mechanism, and the moving device is in transmission connection with the power device through the second transmission mechanism; the power device can drive the back support and the leg support to rotate through the first transmission mechanism, so that the support device forms a chair, and meanwhile, the power device can drive the moving device to extend out and abut against the ground through the second transmission mechanism, so that the chair is supported.

Preferably, the first transmission mechanism includes a first support rod, a second support rod, a first transmission screw rod and a transmission sleeve, wherein: the first support rod is fixedly arranged at the bottom of the back support, and the transmission end of the first support rod inclines towards the direction far away from the back support; the second support rod is fixedly arranged at the bottom of the leg support, and the transmission end of the second support rod inclines towards the direction far away from the leg support; the first transmission screw rod is arranged below the hip support, and two ends of the first transmission screw rod are respectively and rotatably connected with the transmission end of the first support rod and the transmission end of the second support rod; the transmission sleeve is sleeved on the first transmission screw rod, a first output gear is fixedly sleeved on the transmission sleeve, and the first output gear is connected with the output end of the power device in a transmission mode and can rotate under the driving of the power device.

Preferably, the second transmission mechanism comprises a second transmission screw rod and a connecting rod lifting assembly, wherein: a second output gear is fixedly sleeved at the middle position of the second transmission screw rod and is in transmission connection with the output end of the power device; the end part of the second transmission screw rod is in transmission connection with the connecting rod lifting assembly, the moving device is arranged on the connecting rod lifting assembly, and the second transmission screw rod is driven by the power device to rotate so that the connecting rod lifting assembly drives the moving device to lift.

Preferably, the link lifting assembly includes a first link, a second link, a third link and a fourth link, wherein: the first connecting rod, the second connecting rod, the third connecting rod with the fourth connecting rod is rotatable coupling in proper order and forms four-bar linkage, four-bar linkage is including two transmission ends that set up relatively and two flexible ends that set up relatively, two of four-bar linkage the transmission end level sets up, two flexible vertical settings of end of four-bar linkage, two transmission ends of four-bar linkage all are provided with the screw hole, the tip of second drive screw passes two the screw hole.

Preferably, the moving device comprises two main wheels and two steering wheels, and a mounting beam is arranged between the corresponding telescopic ends at the lower parts of the two four-bar linkages, wherein: the two main wheels are respectively and oppositely arranged on two sides of the mounting beam; the two steering wheels are respectively and oppositely arranged on two sides of the mounting beam.

Preferably, the second bed comprises a first support assembly and a second support assembly, wherein: the quantity of first supporting component is provided with two, the second supporting component sets up two between the first supporting component, the second supporting component includes second backup pad and elevating gear, elevating gear can promote the second backup pad risees, so that first supporting component forms the seat, the second supporting component forms puts the thing table.

Preferably, the second support assembly comprises a second bracket disposed at the bottom of the second support plate, and the lifting device comprises a lifting cylinder, a support seat and a control handle, wherein: the supporting seat is arranged on the bottom surface of the second supporting plate; the fixed end of the lifting cylinder is arranged on the second support, and the telescopic end of the lifting cylinder is connected with the supporting seat; the telescopic end of the lifting cylinder is provided with a switch bolt, and the control handle is arranged below the second supporting plate and connected with the switch bolt.

Preferably, the lifting device further comprises a guide device, the guide device comprises a guide rod and a guide sleeve, wherein: one end of the guide rod is fixedly connected with the bottom surface of the second supporting plate, and the other end of the guide rod is inserted into the guide sleeve and can slide along the guide sleeve; the guide sleeve is arranged on the second bracket; the number of the guide devices is four, and the four guide sleeves are respectively arranged at the positions, adjacent to four corners, of the second support plate.

Preferably, the leg support is wrapped at the edge part thereof and provided with a limiting strip, the leg support is provided with a first slide way and a second slide way, the second bed body is provided with a third slide way corresponding to the second slide way, one end of the limiting strip is slidably arranged in the first slide way, and the other end of the limiting strip can slide along the second slide way and the third slide way; be provided with first locking part on the spacing, be located on the second bed body the third slide is kept away from the tip of second slide is provided with first locking part, first locking part can with first locking part can dismantle continuously.

Preferably, the second bed body is connected with a bed head body, the bed head body is provided with a mounting hole, and the edge of the opening of the mounting hole extends inwards to form a limiting convex eave; one end of a guide rod is inserted into the mounting hole in a sliding manner, a limiting ring is arranged on the guide rod, an elastic element is sleeved on the guide rod and arranged in the mounting hole, and two ends of the elastic element respectively abut against the limiting ring and the limiting convex eaves; the other end of the guide rod is connected with a T-shaped limiting block, the T-shaped limiting block comprises a transverse limiting block and a longitudinal limiting block vertically arranged in the middle of the transverse limiting block, the rotating end of the transverse limiting block is connected with the guide rod, an arc-shaped guide groove is formed in the bed head body, the two ends of the arc-shaped guide groove are respectively communicated with an initial positioning hole and an end positioning hole, the positioning end of the transverse limiting block is connected with a positioning column, and the positioning column is slidably arranged in the arc-shaped guide groove and can be positioned in the initial positioning hole or the end positioning hole; the guide rod is pulled and rotated, so that the positioning end of the T-shaped limiting block slides along the arc-shaped guide groove and is positioned in the stop positioning hole, the longitudinal limiting block wraps the edge of the back support, a second locking piece is arranged on the longitudinal limiting block, a second locking piece is arranged on the edge of the back support, and the second locking piece can be detachably connected with the second locking piece.

The multifunctional accompanying bed provided by the invention at least has the following beneficial effects:

the multifunctional accompanying bed comprises a first bed body and a second bed body which are detachably connected, and in an initial state, the first bed body and the second bed body are matched with each other to form a bed shape and used for family members of patients to rest; the first bed body comprises a supporting device, a transmission device, a power device and a moving device, the transmission device comprises a first transmission mechanism and a second transmission mechanism, the supporting device comprises a back support, a hip support and a leg support which are sequentially and rotatably connected, the hip support and the leg support are in transmission connection with the power device through the first transmission mechanism, the power device provides kinetic energy, and the first transmission device can transmit the kinetic energy to the back support, the hip support and the leg support; the moving device is in transmission connection with the power device through the second transmission mechanism, and the second transmission mechanism can transmit kinetic energy to the moving device; the power device can drive the back support and the leg support to rotate through the first transmission mechanism, so that the support device forms a chair, meanwhile, the power device can drive the moving device to extend out and abut against the ground through the second transmission mechanism, and only one power device is needed to realize the lifting of the moving device, the rotation of the back support and the rotation of the leg support, so that the wheelchair is formed; the first bed body can form a wheelchair only by opening the power device, so that the wheelchair has multiple functions and is extremely convenient and fast to operate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a diagrammatic side view of the present invention;

FIG. 3 is a schematic structural view of another aspect of the present invention;

FIG. 4 is a schematic view of the transmission of the present invention;

FIG. 5 is a schematic view of the four bar linkage arrangement of the present invention;

FIG. 6 is a side sectional view of a second bed of the present invention;

FIG. 7 is a schematic view of the lift cylinder configuration of the present invention;

FIG. 8 is an enlarged view of portion A of the present invention;

FIG. 9 is a schematic view of the slideway construction of the present invention;

FIG. 10 is an enlarged view of section B of the present invention;

fig. 11 is a cross-sectional view of the invention aa.

Reference numerals

1. A first bed body; 11. a support device; 111. a back support; 112. a hip support; 113. a leg support; 1131. a first slideway; 1132. a second slideway; 12. a transmission device; 121. a first transmission mechanism; 1211. a first support bar; 1212. a second support bar; 1213. a first drive screw; 1214. a drive sleeve; 1215. a first output gear; 122. a second transmission mechanism; 1221. a second drive screw; 1222. a second output gear; 1223. a connecting rod lifting assembly; 12231. a first link; 12232. a second link; 12233, a third link; 12234. a fourth link; 13. a power plant; 14. a mobile device; 141. a main wheel; 142. a steering wheel; 2. a second bed body; 21. a first support assembly; 211. a third slideway; 22. a second support assembly; 221. a second support plate; 222. a lifting device; 2221. a lifting cylinder; 22211. a switch bolt; 22212. a piston; 22213. a cylinder body; 2222. a supporting seat; 2223. a control handle; 223. a guide device; 2231. a guide bar; 2232. a guide sleeve; 224. a second bracket; 3. a head body; 31. mounting holes; 311. limiting convex eaves; 32. an arc-shaped guide groove; 321. starting a positioning hole; 322. terminating the positioning hole; 4. a limiting strip; 51. a first locking member; 52. a first locking member; 6. a T-shaped limiting block; 61. a transverse limiting block; 62. a longitudinal limiting block; 71. a second locking member; 72. a second lock; 8. a guide bar; 81. A limiting ring; 9. an elastic element; 10. and a positioning column.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

The invention provides a multifunctional accompanying bed, as shown in fig. 1-3, the multifunctional accompanying bed comprises a first bed body 1 and a second bed body 2 which are detachably connected, the first bed body 1 comprises a supporting device 11, a transmission device 12, a power device 13 and a moving device 14, wherein: the transmission device 12 comprises a first transmission mechanism 121 and a second transmission mechanism 122, the supporting device 11 comprises a back support 111, a hip support 112 and a leg support 113 which are rotatably connected in sequence, the back support 111, the hip support 112 and the leg support 113 are all in transmission connection with the power device 13 through the first transmission mechanism 121, and the moving device 14 is in transmission connection with the power device 13 through the second transmission mechanism 122; the power device 13 can drive the back support 111 and the leg support 113 to rotate through the first transmission mechanism 121, so that the support device 11 forms a chair, and the power device 13 can drive the moving device 14 to extend out and abut against the ground through the second transmission mechanism 122, so as to support the chair.

In a normal state, as shown in fig. 1, the first bed body 1 and the second bed body 2 are connected to form a bed, and the family members of the patient can lie for rest; when the first bed body 1 changes state, the power device 13 is turned on, the first transmission mechanism 121 transmits power to the back support 111 and the leg support 113, the back support 111 rotates relative to the hip support 112, the leg support 113 rotates relative to the hip support 112, meanwhile, the second transmission mechanism 122 transmits power to the moving device 14, the moving device 14 extends downwards and abuts against the ground, at the moment, the back support 111, the hip support 112 and the leg support 113 are integrally in the shape of a seat, the moving device 14 supports the support device 11, and the first bed body 1 integrally forms a wheelchair; the invention is in the form of a bed in the initial state, so that a user can lie down, and when the form is changed, the first bed body 1 can form a wheelchair only by opening the power device 13, so that the wheelchair is extremely convenient and fast to operate, and has various forms and functions.

As an alternative embodiment, as shown in fig. 4, the first transmission mechanism 121 includes a first support rod 1211, a second support rod 1212, a first transmission wire 1213, and a transmission sleeve 1214, wherein: a partial section of the first support rod 1211 is fixedly arranged at the bottom of the back support 111, and the transmission end of the first support rod 1211 inclines away from the back support 111; a partial section of the second support bar 1212 is fixedly arranged at the bottom of the leg support 113, and the driving end of the second support bar 1212 is inclined away from the leg support 113; the first transmission wire 1213 is arranged below the hip support 112, and two ends of the first transmission wire 1213 are rotatably connected with the transmission end of the first support rod 1211 and the transmission end of the second support rod 1212, respectively; the number of the first support rods 1211 is set to two, the two first support rods 1211 are arranged at the bottom of the back support 111 in parallel, the transmission ends of the two first support rods 1211 are connected through a first fixing shaft, the number of the second support rods 1212 is set to two, the two second support rods 1212 are arranged at the bottom of the leg support 113 in parallel, the transmission ends of the two second support rods 1212 are connected through a second fixing shaft, and the two ends of the first transmission screw 1213 are rotatably sleeved on the first fixing shaft and the second fixing shaft through shaft sleeves.

The transmission sleeve 1214 is sleeved on the first transmission screw 1213, the transmission sleeve 1214 is fixedly sleeved with a first output gear 1215, the first output gear 1215 is connected with the output end of the power device 13 in a transmission manner and can rotate under the driving of the power device 13, the output end of the power device 13 is connected with an output shaft, the output shaft is sleeved with an input gear, and the input gear is meshed with the first output gear 1215.

The power device 13 is set as a forward and reverse rotation motor, a forward rotation button and a reverse rotation button are arranged on the hip support 112, preferably, two ends of the first transmission screw 1213 are provided with abutting parts, and the back support 111 and the leg support 113 are both provided with limit switches, and the abutting parts can abut against the corresponding limit switches to control the power device 13 to be closed.

As shown in fig. 4, when the forward rotation button is pressed, the power device 13 is rotated forward, the input gear is rotated, the first output gear 1215 is rotated, the transmission sleeve 1214 is synchronously rotated, the first transmission wire 1213 is moved leftward, the first support rod 1211 is turned upward by being pushed by the first transmission wire 1213, the second support rod 1212 is turned downward by being pulled by the first transmission wire 1213, and the support device 11 forms a chair.

The reverse rotation knob is pressed down, the power device 13 reverses, and the support device 11 returns to the initial position.

The bottom of the back support 111 is provided with a handle for the first bed body 1 of the patient in the state of pushing and pulling the wheelchair by the family members.

As an alternative embodiment, as shown in fig. 4, the second transmission mechanism 122 includes a second transmission screw 1221 and a link lifting assembly 1223, wherein: a second output gear 1222 is fixedly sleeved at the middle position of the second transmission screw 1221, the second output gear 1222 is in transmission connection with the output end of the power device 13, and the second output gear 1222 is meshed with the input gear;

the end of the second transmission screw 1221 is in transmission connection with the connecting rod lifting assembly 1223, the moving device 14 is arranged on the connecting rod lifting assembly 1223, and the second transmission screw 1221 is driven by the power device 13 to rotate, so that the connecting rod lifting assembly 1223 drives the moving device 14 to lift.

As an alternative embodiment, as shown in fig. 5, the link lifting assembly 1223 includes a first link 12231, a second link 12232, a third link 12233, and a fourth link 12234, wherein: first connecting rod 12231, second connecting rod 12232, third connecting rod 12233 and fourth connecting rod 12234 are rotatable coupling in proper order and form four-bar linkage, four-bar linkage is including two transmission ends that set up relatively and two flexible ends that set up relatively, two of four-bar linkage the transmission end level sets up, two flexible vertical settings of end of four-bar linkage, two transmission ends of four-bar linkage all are provided with the screw hole, second drive screw 1221 with screw hole screw-thread fit, two are passed to second drive screw 1221's tip the screw hole.

As shown in fig. 4, when the forward rotation knob is pressed down, the power device 13 rotates forward, the input gear rotates, the second output gear 1222 rotates, the second transmission screw 1221 rotates synchronously, the distance between the two telescopic ends of the four-bar linkage increases, the moving device 14 is pushed to move downward and abut against the ground, and the moving device 14 supports the whole first bed body 1.

The reverse rotation knob is pressed, the power device 13 is reversed, and the moving device 14 is restored to the initial position.

As an optional embodiment, the hip support 112 is provided with a support frame, the power device 13 is provided on the support frame, and in an initial position, the support frame supports the whole first bed body 1, the support frame includes a bearing plate, the bearing plate is located above the four-bar linkage, when the first bed body 1 forms a wheelchair, the top telescopic end of the four-bar linkage abuts against the bearing plate, so that the bearing load of the second transmission screw 1221 is reduced, and the service cycle is prolonged; optionally, a power supply device is arranged on the support frame, and the power supply device supplies electric energy to the forward and reverse rotating motor.

As an alternative embodiment, as shown in fig. 2 and 4, the moving device 14 includes two main wheels 141 and two steering wheels 142, the steering wheels 142 are provided as universal wheels, and a mounting beam is provided between the corresponding telescopic ends of the lower portions of the two four-bar linkages, wherein: the two main wheels 141 are respectively and oppositely arranged at two sides of the mounting beam; two steering wheels 142 are oppositely arranged on two sides of the mounting beam respectively.

Preferably, the bottom telescopic end of the four-bar linkage is connected with the mounting beam through a shock absorption assembly.

As an alternative embodiment, as shown in fig. 6, the second bed 2 includes a first support assembly 21 and a second support assembly 22, wherein: the number of first supporting component 21 is provided with two, and second supporting component 22 sets up between two first supporting component 21, and second supporting component 22 includes second backup pad 221 and elevating gear 222, and elevating gear 222 can promote second backup pad 221 and rise to make first supporting component 21 form the seat, and second supporting component 22 forms and puts the thing table, and second bed body 2 wholly can form the form of arhat's chair, and the function is various.

As an alternative embodiment, as shown in fig. 6, the second supporting assembly 22 includes a second bracket 224, the second bracket 224 is disposed at the bottom of the second supporting plate 221, and the lifting device 222 includes a lifting cylinder 2221, a supporting seat 2222 and a control handle 2223, wherein: the support seat 2222 is provided on the bottom surface of the second support plate 221; the fixed end of the lifting cylinder 2221 is arranged on the second bracket 224, and the telescopic end of the lifting cylinder 2221 is connected with the supporting seat 2222; the telescopic end of the lifting cylinder 2221 is provided with a switch bolt 22211, the control handle 2223 is arranged below the second support plate 221 and connected with the switch bolt 22211, and the control handle 2223 is provided with a return spring.

As shown in fig. 7, the lifting cylinder 2221 includes a cylinder 22213 and a piston 22212, the top of the cylinder 22213 is connected to the support base 2222, the switch bolt 22211 is disposed at the top of the cylinder 22213, a cylinder sleeve is sleeved outside the cylinder 22213, the bottom of the piston 22212 is fixedly disposed in the cylinder sleeve, the top of the piston 22212 is inserted into the cylinder 22213, a first chamber is disposed inside the cylinder 22213 and above the piston head, a second chamber is disposed below the piston head, the first chamber and the second chamber are communicated with each other through a flow guide channel, and high-pressure nitrogen is disposed inside the first chamber and the second chamber.

In an initial state, the cylinder 22213 is in a contracted state, the switch bolt 22211 closes the flow guide channel, the air pressure in the first chamber is greater than the air pressure in the second chamber, and the second support plate 221 is located at an initial position;

the control handle 2223 is pulled, the switch bolt 22211 conducts the flow guide channel, nitrogen in the first cavity rapidly enters the second cavity, the cylinder 22213 extends out, the second support plate 221 is lifted, the control handle 2223 blocks the flow guide channel under the action of the return spring, and the second support plate 221 is kept in the extending state;

after the control handle 2223 is pushed and the second support plate 221 is pressed to return to the initial position, the control handle 2223 is loosened, the control handle 2223 drives the switch bolt to block the flow guide channel under the action of the return spring, and the second support plate 221 is kept at the initial position.

As an alternative embodiment, as shown in fig. 6, the lifting device 222 further includes a guide device 223, the guide device 223 includes a guide rod 2231 and a guide sleeve 2232, wherein: one end of the guide rod 2231 is fixedly connected to the bottom surface of the second support plate 221, and the other end of the guide rod 2231 is inserted into the guide sleeve 2232 and can slide along the guide sleeve 2232; a guide sleeve 2232 is provided on the second bracket 224; the number of the guide devices 223 is set to four, and four guide sleeves 2232 are respectively provided at positions adjacent to four corners of the second support plate 221.

As an optional implementation manner, as shown in fig. 8 and 9, a limit strip 4 is wrapped at an edge portion of the leg support 113, a first slideway 1131 and a second slideway 1132 are arranged on the leg support 113, a third slideway 211 is arranged on the second bed body 2 corresponding to the second slideway 1132, one end of the limit strip 4 is slidably arranged in the first slideway 1131, and the other end of the limit strip 4 can slide along the second slideway 1132 and the third slideway 211; be provided with first locking part 51 on the spacing 4, the tip that lies in third slide 211 on the second bed body 2 and keep away from second slide 1132 is provided with first locking part 52, and first locking part 51 can dismantle with first locking part 52 and link to each other, is provided with the hasp on the first locking part 51, is provided with pull ring and handle on the first locking part 52, stirs the handle can drive pull ring locking or unclamp the hasp.

A magnet is arranged on one side of the end part, far away from the second slideway 1132, of the first slideway 1131, a magnet adsorption piece is arranged on the end part corresponding to the limiting strip 4, and when the first bed body 1 and the second bed body 2 are opened, the magnet is in adsorption connection with the magnet adsorption piece;

when the first bed body 1 and the second bed body 2 are connected, the limiting strip 4 slides towards the second bed body 2, one end of the limiting strip 4 abuts against the stopping end of the first slide channel 1131, and the other end of the limiting strip 4 is locked by the first locking piece 52 of the first locking piece 51.

As an alternative embodiment, as shown in fig. 10 and 11, the second bed body 2 is provided with a bed head body 3 in a connected manner, the bed head body 3 is provided with a mounting hole 31, and an opening edge of the mounting hole 31 extends inwards and forms a limiting ledge 311; one end of the guide rod 8 is inserted into the mounting hole 31 in a sliding manner, the guide rod 8 is provided with a limiting ring 81, the guide rod 8 is sleeved with an elastic element 9, the elastic element 9 is arranged in the mounting hole 31, two ends of the elastic element 9 respectively abut against the limiting ring 81 and the limiting convex brim 311, and the elastic element 9 is always in a compression state;

the other end of the guide rod 8 is connected with a T-shaped limiting block 6, the T-shaped limiting block 6 comprises a transverse limiting block 61 and a longitudinal limiting block 62 vertically arranged in the middle of the transverse limiting block 61, the rotating end of the transverse limiting block 61 is connected with the guide rod 8, an arc-shaped guide groove 32 is arranged on the bed head body 3, the two ends of the arc-shaped guide groove 32 are respectively communicated with an initial positioning hole 321 and an end positioning hole 322, the positioning end of the transverse limiting block 61 is connected with a positioning column 10, and the positioning column 10 is slidably arranged in the arc-shaped guide groove 32 and can be positioned in the initial positioning hole 321 or the end positioning hole 322;

when the first bed body 1 and the second bed body 2 are opened, the positioning column 10 is positioned to the initial positioning hole 321;

the guide rod 8 is pulled and rotated, so that the positioning end of the T-shaped limiting block 6 slides along the arc-shaped guide groove 32 and is positioned into the termination positioning hole 322, the longitudinal limiting block 62 is wrapped on the edge of the back support 111, the second locking piece 71 is arranged on the longitudinal limiting block 62, the second locking piece 72 is arranged on the edge of the back support 111, and the second locking piece 71 can be detachably connected with the second locking piece 72.

As an alternative embodiment, as shown in fig. 1 to 3, the first supporting assembly 21 includes a first supporting plate and a first bracket, the first bracket is used for supporting the first supporting plate, and a receiving cavity is provided on the first bracket, and the receiving cavity is used for placing an article.

Optionally, the first bed body 1 and the second bed body 2 are provided with reversible armrests at the edge positions.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.