CN218892599U

CN218892599U - Baby carriage push rod assembly conversion structure and baby carriage

Info

Publication number: CN218892599U
Application number: CN202222279892.6U
Authority: CN
Inventors: 廖文平
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2023-04-21
Anticipated expiration: 2032-08-29

Abstract

The utility model discloses a baby carrier push rod assembly conversion structure which comprises a connecting seat, wherein a push rod piece is connected to the connecting seat, a handle is connected to the push rod piece, the push rod piece comprises a left push rod and a right push rod which are movably connected between the connecting seat and the handle, a closing position and an unfolding position are arranged between the left push rod and the right push rod, when the left push rod and the right push rod are in the closing position, the left push rod and the right push rod are closed to be used as a single push rod, and when the left push rod and the right push rod are in the unfolding position, the left push rod and the right push rod are separated to be used as double push rods. The utility model also discloses a baby carrier. The utility model aims to overcome the defects of the prior art and provides a push rod assembly conversion structure of a baby carrier, which can change the state of a push rod to realize conversion between a single push rod and a double push rod. The utility model also provides a baby carrier capable of changing the push rod state to realize the conversion between a single push rod baby walking car and a double push rod baby pushing car.

Description

Baby carriage push rod assembly conversion structure and baby carriage

[ field of technology ]

The utility model relates to a push rod assembly conversion structure of a baby carrier and the baby carrier.

[ background Art ]

The existing baby carrier generally comprises a baby carrier, a baby walking car and the like, the baby carrier adopts double push rods, the baby walking car adopts single push rods, the old in the home pushes the baby carrier which mostly adopts the double push rods, the baby carrier is more stable and convenient to push and look after, the young adult mostly adopts the baby walking car with the single push rods, and the baby walking car is convenient and convenient to push by one hand, so that a baby carrier push rod assembly conversion structure capable of realizing conversion between the baby walking car with the single push rods and the baby walking car with the double push rods and the baby carrier are needed.

[ utility model ]

The utility model aims to overcome the defects of the prior art and provides a push rod assembly conversion structure of a baby carrier, which can change the state of a push rod to realize conversion between a single push rod and a double push rod.

The utility model also provides a baby carrier capable of changing the push rod state to realize the conversion between a single push rod baby walking car and a double push rod baby pushing car.

The utility model is realized by the following technical scheme:

the utility model provides a child's bike push rod subassembly conversion structure, includes connecting seat 11, connecting seat 11 on be connected with push rod piece 12, push rod piece 12 on be connected with handle 13, push rod piece 12 including swing joint left push rod 121 and right push rod 122 between connecting seat 11 and handle 13, left push rod 121 and right push rod 122 between have and draw close the position and expand the position, left push rod 121 and right push rod 122 draw close and are used as single push rod when left push rod 121 and right push rod 122 are in the position of drawing close, left push rod 121 and right push rod 122 separation are used as the bi-push rod when left push rod 121 and right push rod 122 are in the position of expanding.

The left push rod 121 includes a left straight rod 1211, the upper and lower ends of the left straight rod 1211 are provided with an upper left protruding portion 1212 and a lower left protruding portion 1213 protruding towards the outer side thereof, the upper left protruding portion 1212 is rotatably connected with the handle 13, and the lower left protruding portion 1213 is rotatably connected with the connecting seat 11; the right push rod 122 includes a right straight rod 1221, the upper and lower ends of the right straight rod 1221 are provided with an upper right protruding portion 1222 and a lower right protruding portion 1223 protruding outward, the upper right protruding portion 1222 is rotatably connected with the handle 13, and the lower right protruding portion 1223 is rotatably connected with the connecting seat 11.

In the closed position, the left rod 1211 and the right rod 1221 are closed, and in the extended position, the left rod 1211 and the right rod 1221 are separated.

The connecting seat 11 is also connected with a left sliding seat 16 and a right sliding seat 17 in a sliding manner, a first driving component 18 which can drive the left sliding seat 16 to slide outwards relative to the connecting seat 11 when the left push rod 121 moves from a closing position to a unfolding position is arranged between the left push rod 121 and the left sliding seat 16, and a second driving component 19 which can drive the right sliding seat 17 to slide outwards relative to the connecting seat 11 when the right push rod 122 moves from the closing position to the unfolding position is arranged between the right push rod 122 and the right sliding seat 17.

The lower extreme of left push rod 121 be equipped with stretch into in the connecting seat 11 and with connecting seat 11 rotate left push rod rotation portion 1214 of being connected, first drive assembly 18 locate between left push rod rotation portion 1214 and the connecting seat 11, right push rod 122 lower extreme be equipped with stretch into in the connecting seat 11 and with connecting seat 11 rotate right push rod rotation portion 1224 of being connected, second drive assembly 19 locate between right push rod rotation portion 1224 and the connecting seat 11.

The first driving assembly 18 includes a first gear 181 disposed on the left push rod rotating portion 1214 and located in the connecting seat 11, and the left sliding seat 16 is provided with a first rack 182 extending into the connecting seat 11 and meshed with the first gear 181;

the second driving assembly 19 includes a second gear 191 disposed on the right push rod rotating portion 1224 and disposed in the connecting seat 11, and the right sliding seat 17 is provided with a second rack 192 extending into the connecting seat 11 and meshed with the second gear 191.

The baby carrier comprises a front leg 2 and a rear leg 3, wherein the lower end of the front leg 2 is connected with a front wheel 21, the lower end of the rear leg 3 is connected with a rear wheel 31, the upper end of the rear leg 3 and the upper end of the front leg 2 are connected with the baby carrier push rod assembly conversion structure 1, and a connecting seat 11 is connected between the upper end of the rear leg 3 and the upper end of the front leg 2.

The front leg 2 comprises a front leg frame 22 connected to the connecting seat 11, the front leg 2 further comprises a left front connecting rod 23 rotatably connected to the front leg frame 22 and the left sliding seat 16, and a right front connecting rod 24 rotatably connected to the front leg frame 22 and the right sliding seat 17, the upper end of the left front connecting rod 23 is rotatably connected to the left sliding seat 16 around a first axis A, the lower end of the left front connecting rod 23 is rotatably connected to the front leg frame 22 around a second axis B, the upper end of the right front connecting rod 24 is rotatably connected to the right sliding seat 17 around a third axis C, the lower end of the right front connecting rod 24 is rotatably connected to the front leg frame 22 around a fourth axis D, the front leg 2 comprises a front leg frame 22 connected to the connecting seat 11, the rear leg 3 further comprises a left rear connecting rod 33 rotatably connected to the rear leg frame 32 and the left sliding seat 16, a right rear connecting rod 34 rotatably connected to the rear leg frame 32 and the right sliding seat 17, the upper end of the left rear connecting rod 33 is rotatably connected to the rear leg frame 32 around a fifth axis F, the rear leg frame 33 is rotatably connected to the rear leg frame 32 around the right leg frame 16, the lower end of the rear leg frame 32 is rotatably connected to the front leg frame 32 around a fifth axis F, the rear leg frame 33 is rotatably connected to the rear leg frame 32 around the upper end of the rear leg frame 16, and the left leg frame 32 is rotatably connected to the front leg frame 32 around the left leg frame 16.

The connecting seat 11 include first connecting seat 111 and with the link 112 of first connecting seat 111 swivelling joint, link 112 on sliding connection have handle 100, link 112 both sides swivel joint have second connecting seat 113 and third connecting seat 114, connecting seat 11 still including the locking structure that can lock first connecting seat 111, link 112, second connecting seat 113 and third connecting seat 114, left sliding seat 16 connect on second connecting seat 113, right sliding seat 17 connect on third connecting seat 114, push rod piece 12 connect on second connecting seat 113 and third connecting seat 114, preceding leg frame 22 swivelling joint on first connecting seat 111, left preceding connecting rod 23 include around first axis A swivelling joint on left sliding seat 16's left preceding connecting rod rotating part 231, left preceding connecting rod rotating part 231 on be equipped with around ninth axis I swivelling joint in the left body 232 on left preceding connecting rod rotating part 231, left body 232B connect around second axis I on the right body rotating part on the right body C of rod rotating part of the left preceding connecting rod rotating part 241, the preceding rod body C is equipped with around the upper and right leg C4 on the preceding connecting rod body C of the right connecting rod rotating part of the right side of the front connecting rod frame, the front leg frame 22 rotate around the upper end of the third connecting rod body C and the right connecting rod body C of the front leg C2 and the front leg C, the front leg C is equipped with the swivel joint on the front leg C and the front leg C of the front rod body C and the handle 12 when the front leg C is rotated and the front leg C on the front leg C of the front leg C12 and the front leg C is rotated and the front leg C on the front leg C of the front rod body C2.

Compared with the prior art, the utility model has the following advantages: when the push rod piece in the utility model needs to be used as a single push rod, the left push rod and the right push rod are operated to enable the left push rod and the right push rod to be close to each other, at the moment, the push rod piece is in a close position, the push rod piece is used as a single push rod, when the push rod piece in the utility model needs to be used as a double push rod, the left push rod and the right push rod are operated to enable the left push rod and the right push rod to be far away from each other, at the moment, the push rod piece is used as a double push rod. Therefore, the push rod of the baby carrier is changed, and the adaptability is wider.

[ description of the drawings ]

FIG. 1 is one of the perspective views of the push rod assembly switching structure of the child car of the present utility model;

FIG. 2 is a second perspective view of the push rod assembly switching structure of the child car of the present utility model;

FIG. 3 is a third perspective view of the push rod assembly switching structure of the child car of the present utility model;

FIG. 4 is an exploded view of the push rod assembly switching arrangement of the child car of the present utility model;

FIG. 5 is one of the perspective views of the child's vehicle of the present utility model;

FIG. 6 is a second perspective view of the child's vehicle of the present utility model;

FIG. 7 is a third perspective view of the child car of the present utility model;

FIG. 8 is one of the perspective views of the child's vehicle of the present utility model when deployed;

FIG. 9 is a second perspective view of the child car of the present utility model when deployed;

fig. 10 is a perspective view of the child of the present utility model when folded.

[ detailed description ] of the utility model

The utility model is further described below with reference to the accompanying drawings:

as shown in fig. 1 to 4, a push rod assembly conversion structure of a child car comprises a connecting seat 11, wherein a push rod piece 12 is connected to the connecting seat 11, a handle 13 is connected to the push rod piece 12, the push rod piece 12 comprises a left push rod 121 and a right push rod 122 which are movably connected between the connecting seat 11 and the handle 13, a closing position and a unfolding position are arranged between the left push rod 121 and the right push rod 122, when the left push rod 121 and the right push rod 122 are in the closing position, the left push rod 121 and the right push rod 122 are closed to serve as a single push rod, and when the left push rod 121 and the right push rod 122 are in the unfolding position, the left push rod 121 and the right push rod 122 are separated to serve as double push rods.

When the push rod piece 12 in the present utility model is required to be used as a single push rod, the left push rod 121 and the right push rod 122 are operated so that the left push rod 121 and the right push rod 122 are close to each other, at this time, the push rod piece 12 is in a close position, the push rod piece 12 is used as a single push rod, and when the push rod piece 12 in the present utility model is required to be used as a double push rod, the left push rod 121 and the right push rod 122 are operated so that the left push rod 121 and the right push rod 122 are far away from each other, at this time, the push rod piece 12 is used as a double push rod.

As shown in fig. 1 to 2, the left push rod 121 includes a left straight rod 1211, the upper and lower ends of the left straight rod 1211 are provided with an upper left protruding portion 1212 and a lower left protruding portion 1213 protruding outward, the upper left protruding portion 1212 is rotatably connected with the handle 13, and the lower left protruding portion 1213 is rotatably connected with the connecting seat 11; the right push rod 122 includes a right straight rod 1221, the upper and lower ends of the right straight rod 1221 are provided with an upper right protruding portion 1222 and a lower right protruding portion 1223 protruding outward, the upper right protruding portion 1222 is rotatably connected with the handle 13, and the lower right protruding portion 1223 is rotatably connected with the connecting seat 11.

As shown in fig. 1 to 2, in the closed position, the left rod 1211 and the right rod 1221 are closed to each other, and in the extended position, the left rod 1211 and the right rod 1221 are separated from each other.

Due to the arrangement of the upper left protrusion 1212 and the lower left protrusion 1213, when the left straight rod 1211 is pulled, the upper left protrusion 1212 and the lower left protrusion 1213 on the left straight rod 1211 rotate relative to the connecting base 11 and the grip 13, respectively, while when the right straight rod 1221 is pulled, the upper right protrusion 1222 and the lower right protrusion 1223 on the right straight rod 1221 rotate relative to the connecting base 11 and the grip 13, respectively, and at this time, the left straight rod 1211 and the right straight rod 1221 are separated from each other. The upper left and

lower protrusions

1212, 1213, 1222, 1223 are positioned such that the left straight rod 1211 is sufficiently distant from the right straight rod 1221 to be moved apart and closer together.

As shown in fig. 2, the handle 13 is provided with a unidirectional rotation structure 131 for limiting the single rotation of the left push rod 121 and the right push rod 122. The unidirectional rotation structure 131 is used to define the direction in which the left push rod 121 and the right push rod 122 rotate.

As shown in fig. 2, a first locking device 14 capable of locking the upper part of the left push rod 121 and the handle 13 is arranged between the upper part of the right push rod 122 and the handle 13, and a second locking device 15 capable of locking the upper part of the right push rod and the handle 13 is arranged between the upper part of the right push rod and the handle 13. The first locking device 14 and the second locking device 15 are existing key locks or key locks, and the left push rod 121 and the right push rod 122 are locked in the unfolding position or the close position through the first locking device 14 and the second locking device 15.

As shown in fig. 4, the connecting seat 11 is further slidably connected with a left sliding seat 16 and a right sliding seat 17, a first driving assembly 18 capable of driving the left sliding seat 16 to slide outwards relative to the connecting seat 11 when the left push rod 121 moves from a closed position to an open position is arranged between the left push rod 121 and the left sliding seat 16, and a second driving assembly 19 capable of driving the right sliding seat 17 to slide outwards relative to the connecting seat 11 when the right push rod 122 moves from the closed position to the open position is arranged between the right push rod 122 and the right sliding seat 17. The left sliding seat 16 and the right sliding seat 17 are connected with the front leg 2 and/or the rear leg 3. The left and right

sliding seats

16 and 17 are driven by the first and second driving assemblies 18 and 19 to slide laterally relative to the connecting seat 11 when the left and

right push rods

121 and 122 are moved from the closed position to the open position, at which time the front and/or rear legs 2 and 3 can be extended outwardly.

As shown in fig. 4, the lower end of the left push rod 121 is provided with a left push rod rotating portion 1214 extending into the connecting seat 11 and rotationally connected with the connecting seat 11, the first driving assembly 18 is disposed between the left push rod rotating portion 1214 and the connecting seat 11, the lower end of the right push rod 122 is provided with a right push rod rotating portion 1224 extending into the connecting seat 11 and rotationally connected with the connecting seat 11, and the second driving assembly 19 is disposed between the right push rod rotating portion 1224 and the connecting seat 11. The left push rod rotating part 1214 and the right push rod rotating part 1224 are rotating columns extending into the connecting seat 11. The left push rod 121 rotates relative to the connection base 11 through the left push rod rotating part 1214, and the right push rod 122 rotates relative to the connection base 11 through the right push rod rotating part 1224.

As shown in fig. 4, the first driving assembly 18 includes a first gear 181 disposed on the left push rod rotating portion 1214 and located in the connecting seat 11, and the left sliding seat 16 is provided with a first rack 182 extending into the connecting seat 11 and meshed with the first gear 181; the second driving assembly 19 includes a second gear 191 disposed on the right push rod rotating portion 1224 and disposed in the connecting seat 11, and the right sliding seat 17 is provided with a second rack 192 extending into the connecting seat 11 and meshed with the second gear 191. When the left push rod 121 and the right push rod 122 move from the close position to the open position, the left push rod rotating portion 1214 on the left push rod 121 is driven to rotate, at this time, the first gear 181 on the left push rod rotating portion 1214 is meshed with the first rack 182 to drive the left sliding seat 16 to slide laterally outwards relative to the connecting seat 11, the right push rod rotating portion 1224 on the right push rod 122 is driven to rotate, and the second rack 192 on the right push rod rotating portion 1224 is meshed with the second rack 192 to drive the right sliding seat 17 to slide laterally outwards relative to the connecting seat 11.

As shown in fig. 5 to 10, a stroller comprises a front leg 2 and a rear leg 3, wherein the lower end of the front leg 2 is connected with a front wheel 21, the lower end of the rear leg 3 is connected with a rear wheel 31, the upper end of the rear leg 3 and the upper end of the front leg 2 are connected with the stroller push rod assembly conversion structure 1 as described above, and the connecting seat 11 is connected between the upper end of the rear leg 3 and the upper end of the front leg 2. The single push rod child car and the double push rod child car can be converted by the child car through the rotation of the left push rod 121 and the right push rod 122 which are close to or far away from each other.

As shown in fig. 5, the front leg 2 includes a front leg frame 22 connected to the connection base 11, the front wheel 21 is connected to the front leg frame 22, the rear leg 3 includes a rear leg frame 32 connected to the other side of the connection base 11, and the rear wheel 31 is connected to the rear leg frame 32.

As shown in fig. 5, the connecting seat 11 is further slidably connected with a left sliding seat 16 and a right sliding seat 17, a first driving assembly 18 capable of driving the left sliding seat 16 to slide outwards relative to the connecting seat 11 when the left push rod 121 moves from a closed position to an open position is arranged between the left push rod 121 and the left sliding seat 16, and a second driving assembly 19 capable of driving the right sliding seat 17 to slide outwards relative to the connecting seat 11 when the right push rod 122 moves from the closed position to the open position is arranged between the right push rod 122 and the right sliding seat 17.

The front leg 2 further comprises a left front connecting rod 23 rotatably connected between the front leg frame 22 and the left sliding seat 16 and a right front connecting rod 24 rotatably connected between the front leg frame 22 and the right sliding seat 17, the upper end of the left front connecting rod 23 is rotatably connected on the left sliding seat 16 around a first axis A, the lower end of the left front connecting rod 23 is rotatably connected on the front leg frame 22 around a second axis B, the upper end of the right front connecting rod 24 is rotatably connected on the right sliding seat 17 around a third axis C, the lower end of the right front connecting rod 24 is rotatably connected on the front leg frame 22 around a fourth axis D, the rear leg 3 further comprises a left rear connecting rod 33 rotatably connected between the rear leg frame 32 and the left sliding seat 16 and a right rear connecting rod 34 rotatably connected between the rear leg frame 32 and the right sliding seat 17, the upper end of the left rear connecting rod 33 is rotatably connected on the left sliding seat 16 around a fifth axis E, the lower end of the left rear connecting rod 33 is rotatably connected on the front leg frame 22 around a sixth axis F, the lower end of the right connecting rod 34 is rotatably connected on the rear leg frame 34 around a seventh axis G, and the upper end of the rear connecting rod 34 is rotatably connected on the right leg frame 17 around a eighth axis. When the push rod piece 12 in the baby carrier moves from the close position to the unfolding position, the left push rod 121 and the right push rod 122 respectively rotate to drive the left sliding seat 16 and the right sliding seat 17 to respectively slide left and right relative to the connecting seat 11, at the moment, the left sliding seat 16 drives the upper end of the left front connecting rod 23 and the upper end of the left rear connecting rod 33 to move, at the moment, the upper end of the left front connecting rod 23 rotates relative to the left sliding seat 16 around the first axis A, the lower end of the left front connecting rod 23 rotates relative to the front leg frame 22 around the second axis B, the upper end of the left rear connecting rod 33 rotates relative to the left sliding seat 16 around the fifth axis E, the lower end of the left rear connecting rod 33 rotates relative to the rear leg frame 32 around the sixth axis F, at the same time, the right sliding seat 17 drives the upper end of the right front connecting rod 24 and the upper end of the right rear connecting rod 34 to move left, at the moment, the upper end of the right front connecting rod 24 rotates relative to the right sliding seat 17 around the third axis C, the lower end of the right front connecting rod 24 rotates relative to the front leg frame 22 around the fourth axis D, the upper end of the right rear connecting rod 34 rotates relative to the right sliding seat 17 around the seventh axis G, the lower end of the right rear connecting rod 34 rotates relative to the eighth axis H, and the lower end of the rear connecting rod 34 rotates relative to the eighth axis H, and the baby carrier is converted into a baby carrier.

As shown in fig. 5 to 10, the connecting base 11 includes a first connecting base 111 and a connecting frame 112 rotatably connected to the first connecting base 111, the connecting frame 112 is slidably connected with a handle 100, a first locking structure 101 capable of being unlocked when the handle 100 is pulled is provided between the handle 100 and the connecting frame 112 and the first connecting base 111, the first connecting base 111 rotates relative to the connecting frame 112 when the handle 100 is pulled to unlock the locking structure 101, two sides of the connecting frame 112 are rotatably connected with a second connecting base 113 and a third connecting base 114, the connecting base 11 further includes a locking structure capable of locking the first connecting base 111, the connecting frame 112, the second connecting base 113 and the third connecting base 114, the left sliding base 16 is connected to the second connecting base 113, the second connecting base 113 and the connecting frame 112 are provided with a second locking structure 102, the right sliding seat 17 is connected to the third connecting seat 114, the third connecting seat 114 and the connecting frame 112 are provided with a third locking structure 103, the front leg frame 22 is rotatably connected to the first connecting seat 111, the left front connecting rod 23 comprises a left front connecting rod rotating part 231 rotatably connected to the left sliding seat 16 around a first axis A, the left front connecting rod rotating part 231 is provided with a left rod body 232 rotatably connected to the left front connecting rod rotating part 231 around a ninth axis I, the lower end of the left rod body 232 is rotatably connected to the front leg frame 22 around a second axis B, the right front connecting rod 24 comprises a right front connecting rod rotating part 241 rotatably connected to the right sliding seat 17 around a third axis C, the right front connecting rod rotating part 241 is provided with a right rod body 242 rotatably connected to the right front connecting rod rotating part 241 around a tenth axis J, the lower end of the right rod 242 is rotatably connected to the front leg frame 22 about the fourth axis D, and the front leg 2 and the push rod 12 and the grip 13 can be respectively rotated toward each other toward the rear leg 3 when the locking structure is unlocked. When the locking structure is unlocked, the first connecting seat 111 can rotate relative to the connecting frame 112, the front leg 22 connected to the first connecting seat 111 moves along with the front leg 22, and simultaneously, the front leg 22 drives the lower end of the left rod 232 and the lower end of the right rod 242 to move along with the front leg 22, at this time, the upper end of the left rod 232 rotates around the ninth axis I, the upper end of the right rod 242 rotates around the tenth axis J to make the whole front leg 2 approach the rear leg 3, and simultaneously, the second connecting seat 113 and the third connecting seat 114 rotate relative to the connecting frame 112 to make the push rod 12 and the grip 13 approach the rear leg 3, thereby completing the folding of the whole baby carrier. Whether the push rod piece 12 is in a single push rod state or a double push rod state, can be folded.

Claims

1. A child's bike push rod assembly conversion structure which characterized in that: including connecting seat (11), connecting seat (11) on be connected with push rod piece (12), push rod piece (12) on be connected with handle (13), push rod piece (12) including swing joint left push rod (121) and right push rod (122) between connecting seat (11) and handle (13), left push rod (121) and right push rod (122) between have draw close the position and expand the position, left push rod (121) and right push rod (122) draw close and are used as single push rod when left push rod (121) and right push rod (122) are in the position of drawing close, left push rod (121) and right push rod (122) separation are used as the bipole when left push rod.

2. The child car push rod assembly switching structure according to claim 1, wherein: the left push rod (121) comprises a left straight rod (1211), the upper end and the lower end of the left straight rod (1211) are provided with a left upper protruding part (1212) and a left lower protruding part (1213) protruding towards the outer side of the left straight rod, the left upper protruding part (1212) is rotationally connected with the handle (13), and the left lower protruding part (1213) is rotationally connected with the connecting seat (11); the right push rod (122) comprises a right straight rod (1221), an upper right protruding part (1222) and a lower right protruding part (1223) protruding towards the outer side of the upper right protruding part are arranged at the upper end and the lower end of the right straight rod (1221), the upper right protruding part (1222) is rotationally connected with the handle (13), and the lower right protruding part (1223) is rotationally connected with the connecting seat (11).

3. The child car push rod assembly switching structure according to claim 2, wherein: when the left straight rod (1211) and the right straight rod (1221) are close to each other in the close position, and when the left straight rod (1211) and the right straight rod (1221) are separated from each other in the open position.

4. The child car push rod assembly switching structure according to claim 1, wherein: the connecting seat (11) on still sliding connection have left sliding seat (16) and right sliding seat (17), left push rod (121) and left sliding seat (16) between be equipped with can drive left sliding seat (16) relative connecting seat (11) outside gliding first drive assembly (18) when moving to the expansion position by drawing close the position in left push rod (121), right push rod (122) and right sliding seat (17) between be equipped with can drive right sliding seat (17) relative connecting seat (11) outside gliding second drive assembly (19) when moving to the expansion position by drawing close the position in right push rod (122).

5. The child car push rod assembly switching structure according to claim 4, wherein: the left push rod (121) lower extreme be equipped with stretch into in connecting seat (11) and with connecting seat (11) rotate left push rod rotation portion (1214) of being connected, first drive assembly (18) locate between left push rod rotation portion (1214) and connecting seat (11), right push rod (122) lower extreme be equipped with stretch into in connecting seat (11) and with connecting seat (11) rotate right push rod rotation portion (1224) of being connected, second drive assembly (19) locate between right push rod rotation portion (1224) and connecting seat (11).

6. The child car push rod assembly switching structure according to claim 5, wherein: the first driving assembly (18) comprises a first gear (181) arranged on the left push rod rotating part (1214) and positioned in the connecting seat (11), and the left sliding seat (16) is provided with a first rack (182) extending into the connecting seat (11) and meshed with the first gear (181);

the second driving assembly (19) comprises a second gear (191) arranged on the right push rod rotating part (1224) and positioned in the connecting seat (11), and the right sliding seat (17) is provided with a second rack (192) extending into the connecting seat (11) and meshed with the second gear (191).

7. A child's vehicle, characterized by: the baby carrier push rod assembly conversion structure (1) according to any one of claims 1 to 2 is connected between the upper end of the rear leg (3) and the upper end of the front leg (2), and the connecting seat (11) is connected between the upper end of the rear leg (3) and the upper end of the front leg (2).

8. A child vehicle according to claim 7, wherein: the connecting seat (11) on still sliding connection have left sliding seat (16) and right sliding seat (17), left push rod (121) and left sliding seat (16) between be equipped with can drive left sliding seat (16) relative connecting seat (11) outside gliding first drive assembly (18) when moving to the expansion position by drawing close the position in left push rod (121), right push rod (122) and right sliding seat (17) between be equipped with can drive right sliding seat (17) relative connecting seat (11) outside gliding second drive assembly (19) when moving to the expansion position by drawing close the position in right push rod (122).

9. A child vehicle according to claim 8, wherein: the front leg (2) comprises a front leg frame (22) connected to the connecting seat (11), the front leg (2) further comprises a left front connecting rod (23) rotatably connected between the front leg frame (22) and the left sliding seat (16) and a right front connecting rod (24) rotatably connected between the front leg frame (22) and the right sliding seat (17), the upper end of the left front connecting rod (23) is rotatably connected to the left sliding seat (16) around a first axis (A), the lower end of the left front connecting rod (23) is rotatably connected to the front leg frame (22) around a second axis (B), the upper end of the right front connecting rod (24) is rotatably connected to the right sliding seat (17) around a third axis (C), the lower end of the right front connecting rod (24) is rotatably connected to the front leg frame (22) around a fourth axis (D), the front leg (2) comprises a front leg frame (22) connected to the connecting seat (11), the rear leg (3) further comprises a left connecting rod (33) rotatably connected to the rear leg frame (16) around a fifth axis (33) and the rear leg (16), the left rear connecting rod (33) lower extreme rotate around sixth axis (F) and connect on rear leg frame (32), right rear connecting rod (34) upper end rotate around seventh axis (G) and connect on right sliding seat (17), right rear connecting rod (34) lower extreme rotate around eighth axis (H) and connect on preceding leg frame (22), front wheel (21) connect on preceding leg frame (22), rear leg (3) including connect on rear leg frame (32) of connecting seat (11) opposite side, rear wheel (31) connect on rear leg frame (32).

10. A child vehicle according to claim 9, wherein: the connecting seat (11) comprises a first connecting seat (111) and a connecting frame (112) rotationally connected with the first connecting seat (111), a handle (100) is slidingly connected on the connecting frame (112), a second connecting seat (113) and a third connecting seat (114) are rotationally connected on two sides of the connecting frame (112), the connecting seat (11) further comprises a locking structure capable of locking the first connecting seat (111), the connecting frame (112), the second connecting seat (113) and the third connecting seat (114), a left sliding seat (16) is connected on the second connecting seat (113), a right sliding seat (17) is connected on the third connecting seat (114), a push rod piece (12) is connected on the second connecting seat (113) and the third connecting seat (114), a front leg frame (22) is rotationally connected on the first connecting seat (111), a left front connecting rod (23) comprises a locking structure capable of being rotationally connected on a first axis (A) and a left sliding seat (16), a left front connecting rod body (231) is rotationally connected on a left front connecting rod body (231) and a left front connecting rod (231) is rotationally connected on a right connecting rod body (231) and a left front connecting rod body (231) is rotationally connected on a left front connecting rod body (231) and a right connecting rod body (231) and a left front connecting rod body (231) is rotationally on a right connecting rod body (231) and a right connecting rod body (a right connecting rod body, the right front connecting rod (24) comprises a right front connecting rod rotating part (241) which is rotationally connected to the right sliding seat (17) around a third axis (C), the right front connecting rod rotating part (241) is provided with a right rod body (242) which is transversely rotationally connected to the right front connecting rod rotating part (241) around a tenth axis (J), the lower end of the right rod body (242) is rotationally connected to the front leg frame (22) around a fourth axis (D), and when the locking structure is unlocked, the front leg (2), the push rod piece (12) and the handle (13) can be respectively rotated towards the rear leg (3).