Baby carriage
阅读说明:本技术 一种童车 (Baby carriage ) 是由 张发辉 于 2019-10-22 设计创作,主要内容包括:本发明公开了一种童车,包括:童车车架和座椅组件,童车车架包括依次枢接的前脚组件、后脚组件和把手组件;座椅组件包括座板、靠背和扶手管;座板通过连杆组件活动连接于前脚组件与把手组件之间,靠背与座板之间设有靠背解锁机构,扶手管与座板之间设有联动解锁机构,童车在收叠的过程中,利用靠背解锁机构驱使靠背与座板分离,然后将靠背朝向座板方向转动,在此过程中,联动解锁机构促使扶手管与座板分离,进而相对座板转动,从而实现扶手管和靠背的联动解锁,同时,在把手组件朝向座板方向折叠的过程中,座板通过连杆组件折叠于前脚组件附近,从而实现童车的快速折叠,提高童车折叠收纳的便利性。(The invention discloses a baby carriage, which comprises: the baby carriage comprises a baby carriage frame and a seat assembly, wherein the baby carriage frame comprises a front foot assembly, a rear foot assembly and a handle assembly which are sequentially pivoted; the seat component comprises a seat board, a backrest and an armrest tube; the bedplate passes through link assembly swing joint between preceding foot subassembly and handle subassembly, be equipped with back release mechanism between back and the bedplate, be equipped with linkage release mechanism between handrail pipe and the bedplate, the bassinet is receiving the in-process of folding, utilize back release mechanism to order about back and bedplate separation, then rotate the back towards the bedplate direction, at this in-process, linkage release mechanism makes handrail pipe and bedplate separation, and then relative bedplate rotates, thereby realize the linkage unblock of handrail pipe and back, and simultaneously, at the folding in-process of handle subassembly orientation bedplate direction, the bedplate passes through link assembly and folds near preceding foot subassembly, thereby realize the quick folding of bassinet, improve the folding convenience of accomodating of bassinet.)
1. A stroller, comprising:
a stroller frame (100) and a seat assembly (200), the stroller frame (100) comprising a front foot assembly (110), a rear foot assembly (120) and a handle assembly (130) pivotally connected in sequence by a first pivot (101); the seat assembly (200) includes: a seat plate (210), a backrest (220) and armrest tubes (230);
the seat board (210) is movably connected between the front foot assembly (110) and the handle assembly (130) through a connecting rod assembly (250) and can be folded near the front foot assembly (110);
the seat board (210) is provided with a seat board joint (211), and the seat board joint (211) is provided with a second pivot (201);
the backrest (220) is provided with a backrest joint (221), and the backrest joint (221) is rotatably arranged on the seat plate joint (211) through the second pivot (201);
the first clutch piece (202) is movably arranged on the second pivot (201), is positioned between the seat plate joint (211) and the backrest joint (221) and is used for connecting or separating the backrest joint (221) and the seat plate joint (211);
the first elastic piece is connected with the first clutch piece (202) and used for driving the first clutch piece (202) to connect the backrest joint (221) with the seat plate joint (211);
the backrest unlocking mechanism is movably arranged on the second pivot (201) and can drive the first clutch piece (202) to be separated from the seat plate joint (211) or the first clutch piece (202) to be separated from the backrest joint (221) so that the backrest (220) can rotate relative to the seat plate (210);
the armrest tube (230) is provided with an armrest tube joint (231), and the armrest tube joint (231) is rotatably arranged on the second pivot (201) and is positioned at one side of the backrest joint (221);
the second clutch piece (203) is movably arranged on the second pivot (201) and is used for connecting or separating the handrail pipe joint (231) with or from the seat plate joint (211);
the second elastic piece is connected with the second clutch piece (203) and used for driving the second clutch piece (203) to connect the handrail tube joint (231) with the seat plate joint (211);
and the linkage unlocking mechanism is arranged between the second clutch piece (203) and the backrest joint (221), and can drive the second clutch piece (203) to be separated from the seat plate joint (211) so that the armrest tube (230) can rotate relative to the seat plate (210).
2. A stroller according to claim 1, wherein:
the backrest unlocking mechanism comprises a backrest unlocking piece (204) and a rotation driving mechanism, the backrest unlocking piece (204) is rotatably arranged on the second pivot (201), the rotation driving mechanism is connected with the backrest unlocking piece (204), the rotation driving mechanism is used for driving the backrest unlocking piece (204) to rotate around the second pivot (201), the backrest unlocking piece (204) is located between the first clutch piece (202) and the backrest joint (221), the end face, facing the first clutch piece (202), of the backrest unlocking piece (204) is abutted against the first clutch piece (202), and a first wedge-shaped mechanism capable of driving the first clutch piece (202) to be close to or far away from the seat plate joint (211) is arranged between the end face, facing the backrest joint (221), of the backrest unlocking piece (204) and the backrest joint (221).
3. A stroller according to claim 2, wherein:
the first wedge-shaped mechanism comprises at least one first arc-shaped groove (205) which is arranged on the end surface of the backrest unlocking piece (204) facing to the backrest joint (221), one end of the first arc-shaped groove (205) is provided with a first stop plane (2051), the other end of the first arc-shaped groove (205) is provided with a first inclined plane (2052), a first driving block (206) matched with the first arc-shaped groove (205) is arranged on the end surface of the backrest joint (221) facing the first clutch piece (202), two ends of the first driving block (206) are respectively provided with a second stop plane (2061) matched with the first stop plane (2051) and a second inclined plane (2062) matched with the first inclined plane (2052), the rotary driving mechanism is used for driving the first stop plane (2051) to abut against the second stop plane (2061) or driving the first inclined plane (2052) and the second inclined plane (2062) to move relatively.
4. A stroller according to claim 1, wherein:
the front foot assembly (110) is provided with two front foot joints (102) which are respectively rotatably arranged at two ends of the first pivot (101), the rear foot assembly (120) is provided with two rear foot joints (103) which are respectively rotatably arranged at two ends of the first pivot (101), a first clutch block (104) is movably arranged between the front foot joint (102) and the rear foot joint (103) on the same side, and the first clutch block (104) can be clamped on the front foot joints (102) and/or the rear foot joints (103);
the third elastic piece (107) is connected with the first clutch block (104) and used for driving the first clutch block (104) to be simultaneously clamped on the front foot joint (102) and the rear foot joint (103) adjacent to the first clutch block;
a carrying handle (105) which is rotatably arranged on the first pivot (101);
the two linkage rods (106) are respectively in one-to-one correspondence with the two first clutch blocks (104), one end of each linkage rod (106) is pressed against the adjacent first clutch block (104), and the other end of each linkage rod (106) is movably abutted against the lifting handle (105);
and the rotating pushing mechanism (108) is coupled between the lifting handle (105) and the linkage rod (106), when the lifting handle (105) rotates upwards, the rotating pushing mechanism (108) can drive the linkage rod (106) to push the first clutch block (104) so as to separate the first clutch block (104) from the front foot joint (102) or the rear foot joint (103), and further fold the front foot assembly (110) and the rear foot assembly (120) which are positioned on two sides of the first pivot (101).
5. A stroller according to claim 4, wherein:
the front foot joint (102) is provided with a guide hole (1021) for the linkage rod (106) to stretch and retract towards the first clutch block (104), the rotating pushing mechanism (108) comprises a pushing inclined plane (1081) arranged on the lifting handle (105) and a fourth elastic piece (1082) connected with the linkage rod (106), the pushing inclined plane (1081) can rotate along with the lifting handle (105) and push the linkage rod (106) to move towards the first clutch block (104), and the fourth elastic piece (1082) is used for driving one end, far away from the first clutch block (104), of the linkage rod (106) to abut against the pushing inclined plane (1081).
6. A stroller according to claim 5, wherein:
an accommodating groove (1051) is formed in the lifting handle (105), one end, far away from the first clutch block (104), of the linkage rod (106) can move in the accommodating groove (1051), the pushing inclined plane (1081) is arranged in the accommodating groove (1051), and the pushing inclined plane (1081) winds the axis of the first pivot (101) and spirals upwards to form a spiral arc surface.
7. A stroller according to claim 1, wherein:
a handle joint (131) is arranged on the handle component (130), a second clutch block (132) is movably arranged between the handle joint (131) and the hind foot joint (103), the second clutch block (132) can be clamped on the handle joint (131) and/or the hind foot joint (103), a pushing piece (133) used for driving the second clutch block (132) to be separated from the handle joint (131) is movably arranged on the handle joint (131), the pushing element (133) is connected with a fifth elastic element (134) for driving the pushing element to reset, a pushing locking mechanism (135) is arranged between the first pivot (101) and the pushing piece (133), when the pushing piece (133) moves axially relative to the first pivot (101) to push the second clutch piece (132), the push lock mechanism (135) is capable of locking a push piece (133) on the first pivot (101); when the pushing piece (133) rotates relative to the first pivot (101), the pushing locking mechanism (135) can unlock and separate the pushing piece (133) and the first pivot (101), so that the handle joint (131) and the rear foot joint (103) can rotate relative to each other.
8. A stroller according to claim 7, wherein:
the push locking mechanism (135) comprises an elastic movable piece (1351) and a clamping part (1352) matched with the elastic movable piece (1351), one of the elastic movable piece (1351) and the clamping part (1352) is arranged on the first pivot shaft (101), and the other one of the elastic movable piece (1351) and the clamping part (1352) is arranged on the push piece (133).
9. A stroller according to claim 8, wherein:
the elastic movable piece (1351) comprises a movable sheet (13511) telescopically arranged on the circumferential side face of the first pivot (101) and a compression spring (13512) which is arranged inside the first pivot (101) and connected with the movable sheet (13511), the clamping portion (1352) comprises a protruding portion arranged on the pushing piece (133), a fifth guide inclined plane (13521) is arranged on the front side of the protruding portion, and a stop surface (13522) is arranged on the rear side of the protruding portion.
10. A stroller according to claim 1, wherein:
the seat assembly (200) further comprises a pedal pipe (240), the pedal pipe (240) is rotatably arranged on the seat plate (210) through a rotating arm (241), and a plurality of fourth meshing teeth (242) distributed around the circumference of the rotating shaft of the rotating arm (241) are arranged on the rotating arm (241); the third clutch member (243) is movably arranged on the seat plate (210) and is provided with a plurality of fifth meshing teeth (244) which can be meshed with the fourth meshing teeth (242), and the third clutch member (243) can move telescopically along the rotating shaft direction of the rotating arm (241) so that the fifth meshing teeth (244) are combined with or separated from the fourth meshing teeth (242); a sixth elastic member connected to the third clutch member 243 or the rotating arm 241 for urging the fourth engaging tooth 242 to be engaged with the fifth engaging tooth 244; the third clutch member (243) is provided with an upper limit part (245) for limiting the swing-up angle of the rotating arm (241) and a lower limit part (246) for limiting the swing-down angle of the rotating arm (241); a rotating clutch mechanism movably coupled between the third clutch member (243) and the rotating arm (241) and contactable with the upper positioning portion (245) to separate and lock the fourth engaging tooth (242) and the fifth engaging tooth (244) in a direction of a rotation shaft of the rotating arm (241); or the rotating clutch mechanism is contacted with the lower limit part (246) to unlock the separated state of the fourth meshing teeth (242) and the fifth meshing teeth (244) so as to enable the fourth meshing teeth (242) and the fifth meshing teeth (244) to be combined.
Technical Field
The invention relates to a baby carriage.
Background
A common baby carrier comprises a baby carrier frame and a seat assembly arranged on the baby carrier frame, wherein the baby carrier frame comprises a front foot assembly, a rear foot assembly and a handle assembly which are mutually pivoted, the seat assembly comprises a seat board, a backrest and an armrest pipe, and the seat board is connected with the baby carrier frame.
In the process of folding the stroller, it is necessary to fold and store the respective components in the vicinity of the front leg unit or the rear leg unit to form a folded state having a small volume. Between preceding foot subassembly and the back foot subassembly, between back foot subassembly and the handle subassembly, between bedplate and the back, all be connected through a set of joint structure between bedplate and the handrail pipe, and each joint structure of group all disposes unlocking mechanism in order to with the two unblock, and then realize folding, but mutual independence between these unlocking mechanism at present, need a lot of unblock operation and folding operation just can realize the bassinet frame, the holistic receipts of seat subassembly and bassinet are folded, lead to folding to accomodate very inconveniently.
For example, for a seat assembly, a backrest and an armrest tube are both rotatably disposed on a seat plate, the armrest tube is located between the seat plate and the backrest, when the seat assembly is folded and stored, the armrest tube needs to be separately unlocked and folded to be close to the seat plate, and then the backrest needs to be separately unlocked and folded to be close to the seat plate, so that the seat assembly is very inconvenient to store and fold;
in addition, at present, the unlocking mechanism of the joint structure between the front foot assembly and the rear foot assembly is mostly unlocked by pressing the first clutch block, and in the process of folding the frame of the baby carriage, a user needs to simultaneously press the unlocking keys positioned on two sides of the frame of the baby carriage to unlock the front foot assembly and the rear foot assembly, so that the folding process is very inconvenient, and the use convenience is affected.
Secondly, at present, the release mechanism of the joint structure between handle subassembly and the back foot subassembly adopts button release structure mostly, and ordinary button release structure needs to keep pressing the button that is located bassinet frame both sides, then folds near the back foot subassembly with the handle subassembly, loosens the button again to make the joint structure between handle subassembly and the back foot subassembly combine once more, cause the operation difficulty, it is inconvenient to use.
Disclosure of Invention
To overcome the deficiencies of the prior art, it is an object of the present invention to provide a stroller that facilitates folding of the back rest and the armrest tube.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a stroller, comprising: the baby carriage comprises a baby carriage frame and a seat assembly, wherein the baby carriage frame comprises a front foot assembly, a rear foot assembly and a handle assembly which are sequentially pivoted through a first pivot; the seat assembly includes: a seat plate, a backrest and a handrail tube; the seat board is movably connected between the front foot assembly and the handle assembly through a connecting rod assembly and can be folded near the front foot assembly; the seat board is provided with a seat board joint, and a second pivot is arranged on the seat board joint; the backrest is provided with a backrest joint, and the backrest joint is rotatably arranged on the seat plate joint through the second pivot; the first clutch piece is movably arranged on the second pivot, is positioned between the seat plate joint and the backrest joint and is used for connecting or separating the backrest joint and the seat plate joint; the first elastic piece is connected with the first clutch piece and used for driving the first clutch piece to connect the backrest joint with the seat plate joint; the backrest unlocking mechanism is movably arranged on the second pivot and can drive the first clutch piece to be separated from the seat plate joint or the first clutch piece to be separated from the backrest joint so that the backrest can rotate relative to the seat plate; the armrest tube is provided with an armrest tube joint which is rotatably arranged on the second pivot and is positioned at one side of the backrest joint; the second clutch piece is movably arranged on the second pivot and used for connecting or separating the handrail tube joint with or from the seat plate joint; the second elastic piece is connected with the second clutch piece and used for driving the second clutch piece to connect the handrail tube joint with the seat plate joint; and the linkage unlocking mechanism is arranged between the second clutch piece and the backrest joint and can drive the second clutch piece to be separated from the seat plate joint so that the handrail tube can rotate relative to the seat plate.
Preferably, the backrest unlocking mechanism comprises a backrest unlocking piece rotatably arranged on the second pivot and a rotation driving mechanism connected with the backrest unlocking piece, the rotation driving mechanism is used for driving the backrest unlocking piece to rotate around the second pivot, the backrest unlocking piece is positioned between the first clutch piece and the backrest joint, the end face, facing the first clutch piece, of the backrest unlocking piece is abutted against the first clutch piece, and a first wedge-shaped mechanism capable of driving the first clutch piece to be close to or far from the seat plate joint is arranged between the end face, facing the backrest joint, of the backrest unlocking piece and the backrest joint.
Preferably, the first wedge mechanism includes at least one first arc-shaped groove that is set on the end surface of the backrest unlocking piece facing the backrest joint, one end of the first arc-shaped groove is provided with a first stop plane, the other end of the first arc-shaped groove is provided with a first inclined plane, the end surface of the backrest joint facing the first clutch piece is provided with a first driving block matched with the first arc-shaped groove, two ends of the first driving block are respectively provided with a second stop plane matched with the first stop plane and a second inclined plane matched with the first inclined plane, and the rotation driving mechanism is used for driving the first stop plane to abut against the second stop plane or driving the first inclined plane to move relative to the second inclined plane.
Preferably, the front foot assembly has two front foot joints respectively rotatably disposed at two ends of the first pivot, the rear foot assembly has two rear foot joints respectively rotatably disposed at two ends of the first pivot, a first clutch block is movably disposed between the front foot joint and the rear foot joint on the same side, and the first clutch block can be clamped on the front foot joint and/or the rear foot joint; the third elastic piece is connected with the first clutch block and used for driving the first clutch block to be simultaneously clamped on the front foot joint and the rear foot joint adjacent to the first clutch block; the lifting handle is rotatably arranged on the first pivot; the two linkage rods are respectively in one-to-one correspondence with the two first clutch blocks, one end of each linkage rod is pressed against the adjacent first clutch block, and the other end of each linkage rod is movably abutted against the lifting handle; and the rotating pushing mechanism is connected between the lifting handle and the linkage rod, and when the lifting handle rotates upwards, the rotating pushing mechanism can drive the linkage rod to push the first clutch block so as to separate the first clutch block from the front foot joint or the rear foot joint and further fold the front foot assembly and the rear foot assembly which are positioned at two sides of the first pivot together.
Preferably, the front foot joint is provided with a guide hole for the linkage rod to move towards the first clutch block in a telescopic manner, the rotating pushing mechanism comprises a pushing inclined plane arranged on the carrying handle and a fourth elastic piece connected with the linkage rod, the pushing inclined plane can rotate along with the carrying handle and push the linkage rod to move towards the first clutch block, and the fourth elastic piece is used for driving one end, far away from the first clutch block, of the linkage rod to abut against the pushing inclined plane.
Preferably, the carrying handle is provided with a containing groove, one end of the linkage rod, which is far away from the first clutch block, can move in the containing groove, the pushing inclined plane is arranged inside the containing groove, and the pushing inclined plane spirally upwards surrounds the axis of the first pivot to form a spiral cambered surface.
Preferably, a handle joint is arranged on the handle assembly, a second clutch block is movably arranged between the handle joint and the rear foot joint, the second clutch block can be clamped on the handle joint and/or the rear foot joint, a pushing and pressing piece used for driving the second clutch block to be separated from the handle joint is movably arranged on the handle joint, the pushing and pressing piece is connected with a fifth elastic piece driving the pushing and pressing piece to reset, a pushing and pressing locking mechanism is arranged between the first pivot and the pushing and pressing piece, and when the pushing and pressing piece moves axially relative to the first pivot to push the second clutch block, the pushing and pressing locking mechanism can lock the pushing and pressing piece on the first pivot; when the pushing piece rotates relative to the first pivot, the pushing locking mechanism can unlock and separate the pushing piece from the first pivot, so that the handle joint and the rear foot joint can rotate relative to each other.
Preferably, the pushing and locking mechanism includes an elastic movable member and an engaging portion that matches the elastic movable member, one of the elastic movable member and the engaging portion is disposed on the first pivot, and the other is disposed on the pushing member.
Preferably, the elastic movable part includes flexible setting and is in the movable plate on the circumference side of first pivot and locate the inside of first pivot and the compression spring who links to each other with the movable plate, block portion is including locating bulldoze the last bellying of piece, the front side of bellying is equipped with fifth direction inclined plane, and the rear side of bellying is equipped with a backstop face.
Preferably, the seat assembly further comprises a pedal pipe, the pedal pipe is rotatably arranged on the seat board through a rotating arm, and the rotating arm is provided with a plurality of fourth meshing teeth distributed around the circumference of the rotating shaft of the rotating arm; the third clutch piece is movably arranged on the seat plate and is provided with a plurality of fifth meshing teeth capable of meshing with the fourth meshing teeth, and the third clutch piece can move telescopically along the rotating shaft direction of the rotating arm so as to enable the fifth meshing teeth to be combined with or separated from the fourth meshing teeth; the sixth elastic piece is connected with the third clutch piece or the rotating arm and used for driving the fourth meshing tooth to be combined with the fifth meshing tooth; the third clutch part is provided with an upper limit part for limiting the upper swing angle of the rotating arm and a lower limit part for limiting the lower swing angle of the rotating arm; a rotating clutch mechanism movably coupled between the third clutch member and the rotating arm and capable of contacting the upper limiting portion to separate and lock the fourth and fifth engaging teeth along the rotating shaft direction of the rotating arm; or the rotating clutch mechanism is contacted with the lower limiting part to unlock the separation state of the fourth meshing teeth and the fifth meshing teeth so that the fourth meshing teeth and the fifth meshing teeth are combined.
The invention has the beneficial effects that: utilize back release mechanism to order about first clutch and bedplate joint or first clutch and back joint separation when the bassinet of above structure is folding to accomodate the seat subassembly, then rotate the back towards the bedplate direction, in this process, linkage release mechanism between bedplate joint and the second clutch makes second clutch and bedplate joint separation and makes the relative bedplate of handrail tube rotate, thereby realize the linkage unblock of handrail tube and back, meanwhile, at the folding in-process of handle subassembly orientation bedplate direction, the bedplate passes through link assembly and folds near preceding foot subassembly, thereby realize the quick folding of bassinet, the folding convenience of accomodating of improvement bassinet.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of one embodiment of a stroller of the present invention;
FIG. 2 is an external view of the seat assembly of FIG. 1;
FIG. 3 is a schematic structural view of the first clutch, the second pivot, the backrest unlocking member, the backrest joint, the second clutch and the armrest tube joint of FIG. 2 in an exploded state;
FIG. 4 is an enlarged partial schematic view of section A of FIG. 3;
FIG. 5 is a schematic view from another perspective of the overall structure of FIG. 4;
FIG. 6 is a schematic view of the internal structure of FIG. 2 at the pivot joint of the seat pan, backrest and armrest tubes;
FIG. 7 is a schematic view of the second pivot;
FIG. 8 is a schematic structural view of a backrest joint;
FIG. 9 is a schematic view of the backrest unlocking member;
FIG. 10 is a schematic exterior view of the frame of the stroller of FIG. 1;
FIG. 11 is an exploded view of the handle assembly of FIG. 10 with the handle assembly removed;
FIG. 12 is a schematic view of the internal structure of the carrying handle, linkage bar and rotary pushing mechanism of FIG. 10 in linkage;
FIG. 13 is a schematic view of the combination of the handle joint, the hindfoot joint and the pusher;
FIG. 14 is an exploded view of the alternate view of FIG. 13;
FIG. 15 is a schematic view of the internal structure of FIG. 13 from one perspective;
fig. 16 is a partially enlarged schematic view of a portion B of fig. 15;
FIG. 17 is a schematic view of the movable plate shown separated from the first pivot;
FIG. 18 is an exploded view of the joint of the foot tube and the seat plate;
FIG. 19 is a schematic view of the structure of FIG. 18 from another perspective;
FIG. 20 is a schematic view showing the inner structure of the joint structure of the foot tube when the foot tube is fixed with respect to the seat plate;
FIG. 21 is a schematic view showing the internal structure of the joint structure of the foot tube when the foot tube is rotated with respect to the seat plate;
FIG. 22 is a schematic view of the linkage in combination with the third clutch member.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
Referring to fig. 1 to 6, a stroller includes: a
Referring to fig. 4 and 5, the backrest unlocking mechanism includes a
Referring to fig. 4, 5, 8, and 9, preferably, the first wedge mechanism includes at least one first arc-
Preferably, a plurality of first
Referring to fig. 4 and 5, preferably, a first arc-shaped
Referring to fig. 7, preferably, a plurality of second
Referring to fig. 5 and 7, preferably, a
Referring to fig. 5 and 7, preferably, a second arc-shaped
Referring to fig. 10 to 12, the
Referring to fig. 11 and 12, the forefoot joint 102 is provided with a guide hole 1021 for the
Referring to fig. 12, a containing
The axial direction of the guide hole 1021 is parallel to the
Referring to fig. 13 and 14, a
The button unlocking structure does not need to keep pressing the pushing
Referring to fig. 14 to 16, in some embodiments of the invention, said push locking mechanism 135 comprises an elastic element 1351 and a
Referring to fig. 16, in some embodiments of the present invention, the elastic moving member 1351 includes a moving
Referring to fig. 16, in order to allow the
In a preferred embodiment of the present invention, a limiting mechanism 136 for limiting the extending/retracting distance of the
The
In the use state, the foot tube 240 is pressed by the leg of the child, and the fourth engaging tooth 242 of the rotating arm 241 abuts against the fifth locking plane 2441 so that the rotating arm 241 cannot rotate downward relative to the seat assembly 210 while being engaged with the fifth engaging tooth 244; when the angle of the pedal tube 240 needs to be adjusted, the rotating arm 241 can be driven to rotate and swing up to the upper limit portion 245, then the rotating clutch mechanism movably connected with the rotating arm 241 drives the fourth engaging tooth 242 and the fifth engaging tooth 244 to be separated and locked along the rotating shaft direction of the rotating arm 241, and then the rotating arm 241 can freely swing down to the lower limit portion 246 to enable the fourth engaging tooth 242 and the fifth engaging tooth 244 to be combined again, so that the pedal tube 240 is reset to the lowest position of the swinging-down angle, and then the pedal tube 240 can swing up by different angles again to adjust the position of the pedal tube 240, thereby realizing the angle adjustment of the pedal tube 240; the pedal pipe joint structure of above structure need not to establish in addition with pedal pipe joint structure mutually independent unlocking structure can realize pedal pipe's angle modulation, adjusts easy operation convenience.
As a preferred embodiment of the present invention, the rotating clutch mechanism includes a
In the operation state, the
Preferably, in some embodiments of the present invention, the
Wherein, the
Preferably, in some embodiments of the present invention, the unlocking
Preferably, in some embodiments of the present invention, two sets of opposite unlocking
Preferably, in some embodiments of the present invention, the
The above examples are merely preferred embodiments of the present invention, and other embodiments of the present invention are possible, such as a reasonable combination of the technical solutions described in the examples. Those skilled in the art can make equivalent changes or substitutions without departing from the spirit of the present invention, and such equivalent changes or substitutions are included in the scope set forth in the claims of the present application.
- 上一篇:一种医用注射器针头装配设备
- 下一篇:童车可伸缩脚踏板