CN214524017U

CN214524017U - Baby carriage frame

Info

Publication number: CN214524017U
Application number: CN202023205063.0U
Authority: CN
Inventors: 莫益金
Original assignee: Zhongshan Youbei Daily Products Co ltd
Current assignee: Zhongshan Youbei Daily Products Co ltd
Priority date: 2020-12-26
Filing date: 2020-12-26
Publication date: 2021-10-29
Anticipated expiration: 2030-12-26

Abstract

The utility model discloses an infant's car frame can follow the expansion position after the locking device unblock and remove to folding position, include: the lower ends of the front legs are provided with front wheel components; the lower ends of the rear legs are provided with rear wheel assemblies, and the front legs are rotatably connected to the rear legs; the lower end of the push rod component is rotatably connected with the upper ends of the rear legs; the seat assembly is rotatably connected to the push rod assembly; the upper end of the linkage rod is rotatably connected to the seat assembly, and the lower end of the linkage rod is rotatably connected to the rear legs; the folding traction assembly is rotatably connected to the rear legs, one end of the folding traction assembly is rotatably connected with the front legs, and the other end of the folding traction assembly is rotatably connected with the seat assembly, so that the seat assembly and the front legs can be drawn to be close to the rear legs and folded when the infant carriage is folded. The utility model provides a simple structure, folding convenient operation, folding small infant's car frame.

Description

Baby carriage frame

[ technical field ] A method for producing a semiconductor device

The utility model relates to a baby carriage frame.

[ background of the invention ]

The baby carriage is an indispensable product in the growth process of infants. The baby carriage frame on the market at present can be folded generally to be convenient for carrying or depositing. However, the infant carriage on the market still has the problems of inconvenient folding operation and large volume after folding.

Therefore, the present invention is based on the above disadvantages.

[ Utility model ] content

The utility model aims to overcome the defects of the prior art and provide a baby carriage frame which has simple structure, convenient folding operation and small volume after folding.

The utility model discloses a realize through following technical scheme:

an infant carrier movable from an unfolded position to a folded position after a locking device is unlocked, comprising:

the lower ends of the front legs 11 are provided with front wheel assemblies 71;

the lower end of the rear leg 12 is provided with a rear wheel component 72, and the front leg 11 is rotatably connected on the rear leg 12;

the lower end of the push rod component 2 is rotatably connected with the upper ends of the rear legs 12;

the seat assembly 3 is rotatably connected to the push rod assembly 2;

the upper end of the linkage rod 16 is rotatably connected to the seat component 3, and the lower end of the linkage rod 16 is rotatably connected to the rear leg 12;

a folding traction assembly 6, wherein the folding traction assembly 6 is rotatably connected on the rear leg 12, one end of the folding traction assembly 6 is rotatably connected with the front leg 11, and the other end is rotatably connected with the seat assembly 3, so that the baby carriage can draw the seat assembly 3 and the front leg 11 to fold towards the rear leg 12 when being folded.

The infant carrier as described above is characterized in that: the folding traction assembly 6 comprises a first traction rod 13, a second traction rod 14 and a third traction rod 15, wherein the front end of the first traction rod 13 is rotatably connected to the front leg 11, the front end of the second traction rod 14 is rotatably connected with the rear end of the first traction rod 13, the rear end of the second traction rod 14 is rotatably connected to the rear leg 12, the lower end of the third traction rod 15 is rotatably connected to the second traction rod 14, and the upper end of the third traction rod 15 is rotatably connected to the seat assembly 3.

The infant carrier as described above is characterized in that: and a transmission component 4 which is rotationally connected with the push rod component 2 and the seat component 3 is also arranged between the push rod component 2 and the seat component 3.

The infant carrier as described above is characterized in that: the transmission assembly 4 comprises a transmission rod frame 41 which is rotatably connected to the push rod assembly 2, a transmission rod 42 which is rotatably connected with the transmission rod frame 41 and the seat assembly 3 is arranged between the transmission rod frame 41 and the seat assembly 3, the upper end of the transmission rod 42 is rotatably connected to the lower end of the transmission rod frame 41, and the lower end of the transmission rod frame 41 is rotatably connected to the rear side of the seat assembly 3.

The infant carrier as described above is characterized in that: the seat assembly 3 comprises a rear connecting rod 31 which is rotatably connected to the push rod assembly 2, and the upper end of the third traction rod 15 is rotatably connected to the rear connecting rod 31.

The infant carrier as described above is characterized in that: the upper end of the linkage rod 16 is rotatably connected to the rear connecting rod 31, and the lower end of the linkage rod 16 is rotatably connected to the rear leg 12.

The infant carrier as described above is characterized in that: the upper end of the linkage rod 16 and the upper end of the third traction rod 15 are rotatably arranged on the rear connecting rod 31 around a first axis A.

The infant carrier as described above is characterized in that: push rod assembly 2 include the connecting rod 21 of being connected with back leg 12 upper end rotation, connecting rod 21 on still be connected with outer push rod 22, connecting rod 21 vertical setting to the contained angle of connecting rod 21 and outer push rod 22 is greater than 90 degrees.

The infant carrier as described above is characterized in that: the seat assembly 3 is pivotally connected to the connecting rod 21 about a second axis B.

The infant carrier as described above is characterized in that: the transmission assembly 4 comprises a transmission rod frame 41 which is rotatably connected to the outer push rod 22, a transmission rod 42 which is arranged between the transmission rod frame 41 and the seat assembly 3 and used for pushing the seat assembly 3 to rotate when the baby carriage frame is folded, wherein the transmission rod frame 41 rotates downwards, the upper end of the transmission rod 42 is rotatably connected to the lower end of the transmission rod frame 41, and the lower end of the transmission rod frame 41 is rotatably connected to the rear side of the seat assembly 3;

or, the push rod assembly 2 further includes an inner push rod 23 connected to the connecting rod 21, the transmission assembly 4 includes a transmission rod holder 41 rotatably connected to the inner push rod 23, a transmission rod 42 is provided between the transmission rod holder 41 and the seat assembly 3, the transmission rod holder 41 rotates downward to push the seat assembly 3 to rotate when the stroller frame is folded, an upper end of the transmission rod 42 is rotatably connected to a lower end of the transmission rod holder 41, and a lower end of the transmission rod holder 41 is rotatably connected to a rear side of the seat assembly 3.

Compared with the prior art, the utility model discloses there is following advantage:

1. when the utility model is folded, the locking device is unlocked firstly, then the push rod component is pushed downwards, the lower end of the push rod component rotates downwards relative to the rear leg, the upper end of the push rod component draws close to the rear wheel component, and in the downward rotation process of the push rod component, the seat component also rotates relative to the rear leg and draws close to the rear leg, when the seat component rotates, one end of the linkage rod and the folding traction component connected with the seat component can be pushed to rotate downwards, one end of the folding traction component connected with the seat component draws the other end when the seat component draws close to the rear leg, so that the front leg draws close to the rear leg and is folded, when the upper end of the push rod component draws close to the rear wheel component, the folding of the whole infant carriage is completed, when folding, the folding of the seat component, the front leg and the rear leg can be completed simultaneously by only pushing the push rod component, the operation is convenient, and the volume of the infant carriage is small after folding, is convenient for users to store.

2. The utility model discloses well transmission assembly can promote the seat subassembly to rotate and draw close to the back leg when the relative back leg of push rod subassembly rotates for infant's car frame is more smooth and easy when folding. Meanwhile, the transmission assembly can also support the push rod assembly, so that the transmission assembly not only can assist in folding but also can support the push rod assembly, and the seat assembly is more stable to fix when the baby carriage frame is unfolded.

[ description of the drawings ]

FIG. 1 is a perspective view of an embodiment 1 of the infant carrier of the present invention;

FIG. 2 is a side view of embodiment 1 of the infant carrier;

FIG. 3 is one of the side views of embodiment 1 of the infant carrier of the present invention when folded;

FIG. 4 is a second side view of the stroller frame of embodiment 1 of the present invention when folded;

FIG. 5 is one of the exploded views of the locking device of embodiment 1 of the infant carrier of the present invention;

FIG. 6 is a second exploded view of the locking device of embodiment 1 of the infant carrier of the present invention;

FIG. 7 is one of the exploded views of the closure of embodiment 1 of the infant carrier of the present invention;

FIG. 8 is a second exploded view of the closure of embodiment 1 of the infant carrier of the present invention;

FIG. 9 is a side view of embodiment 2 of the infant carrier of the present invention.

[ detailed description ] embodiments

The invention will be further described with reference to the accompanying drawings:

example 1: as shown in fig. 1 to 8, the present invention provides an infant carrier movable from an unfolded position to a folded position, comprising:

the seat assembly 3 is rotatably connected to the push rod assembly 2;

When the infant car frame needs to be folded, the locking device is unlocked firstly, then the push rod component 2 is pushed downwards, the lower end of the push rod component 2 rotates downwards relative to the rear legs 12, the upper end of the push rod component 2 is drawn close to the rear wheel component 72, in the downward rotating process of the push rod component 2, the seat component 3 also rotates relative to the rear legs 12, when the seat component 3 rotates, one end of the linkage rod 16 and the folding traction component 6 which is connected with the seat component 3 can be pushed to rotate downwards, one end of the folding traction component 6 which is connected with the seat component 3 draws the other end when the seat component 3 is drawn close to the rear legs 12 so that the front legs 11 are drawn close to the rear legs 12 and folded, when the upper end of the push rod component 2 is drawn close to the rear wheel component 72, the whole infant car frame is folded, when the infant car frame is folded, the folding of the seat component 3, the front legs 11 and the rear legs 12 can be simultaneously completed by pushing the push rod component 2, the operation is convenient, and the volume of the infant carriage frame is small after being folded, so that the infant carriage frame is convenient for a user to store.

As shown in fig. 1 to 4, the folding traction assembly 6 includes a first traction rod 13, a second traction rod 14 and a third traction rod 15, wherein the front end of the first traction rod 13 is rotatably connected to the front leg 11, the front end of the second traction rod 14 is rotatably connected to the rear end of the first traction rod 13, the rear end of the second traction rod 14 is rotatably connected to the rear leg 12, the lower end of the third traction rod 15 is rotatably connected to the second traction rod 14, and the upper end of the third traction rod 15 is rotatably connected to the seat assembly 3. When the push rod assembly 2 rotates downwards, the seat assembly 3 rotates along with the push rod assembly 2, the linkage rod 16 and the third traction rod 15 can be pushed to rotate downwards when the seat assembly 3 rotates, the lower end of the linkage rod 16 rotates relative to the rear leg 12, so that the seat assembly 3 presses the third traction rod 15 downwards, the upper end of the third traction rod 15 rotates relative to the seat assembly 3, the lower end of the third traction rod 15 moves downwards, the lower end of the third traction rod 15 can press the front end of the second traction rod 14 to move downwards and rotate relative to the second traction rod 14, at the moment, the rear end of the second traction rod 14 rotates relative to the rear leg 12 under the pressing of the third traction rod 15, the front end of the second traction rod 14 drives the rear end of the first traction rod 13 to move downwards and draw close, the front end of the first traction rod 13 rotates relative to the front leg 11, so that the front leg 11 rotates and draws close relative to the rear leg 12, and the seat assembly 3, is completed, The folding of the front legs 11 and the rear legs 12 is convenient to operate and smoother to fold.

As shown in fig. 1 to 4, a transmission assembly 4 is further disposed between the push rod assembly 2 and the seat assembly 3, and is rotatably connected to the push rod assembly and the seat assembly. The transmission assembly 4 can push the seat assembly 3 to rotate toward the rear legs 12 and move closer when the push rod assembly 2 rotates relative to the rear legs 12, so that the infant carriage can be folded more smoothly. Meanwhile, the transmission assembly 4 can well support the push rod assembly 2 when the infant stroller frame is unfolded, so that the transmission assembly 4 not only can assist in folding but also can support the push rod assembly 2, and the seat assembly 3 is more stable to fix when the infant stroller frame is unfolded.

As shown in fig. 1 to 4, the driving assembly 4 includes a driving rod frame 41 rotatably connected to the push rod assembly 2, a driving rod 42 rotatably connected to the driving rod frame 41 and the seat assembly 3 is disposed between the driving rod frame 41 and the seat assembly 3, an upper end of the driving rod 42 is rotatably connected to a lower end of the driving rod frame 41, and a lower end of the driving rod frame 41 is rotatably connected to a rear side of the seat assembly 3. When the push rod assembly 2 rotates relative to the rear leg 12, the transmission rod bracket 41 rotates along with the push rod assembly 2 and presses the transmission rod 42 to move downwards, the upper end of the transmission rod 42 rotates relative to the push rod assembly 2 and draws close to the seat assembly 3 when the push rod assembly 2 rotates relative to the rear leg 12, the lower end of the transmission rod 42 moves downwards to push the seat assembly 3, and the transmission rod 42 and the push rod assembly 2 are matched with each other to push the seat assembly 3 so that the seat assembly 3 rotates relative to the push rod assembly 2 and draws close to the rear leg 12.

As shown in fig. 1 to 4, the handle bar 5 for holding an infant is detachably connected to the drive rod frame 41. The grab bar 5 is convenient for the infant to hold when sitting in the frame, ensuring safety. When an infant needs to be put into the seat assembly 3 for sitting, the grab bar 5 can be detached from the transmission rod frame 41, so that the use is convenient.

As shown in fig. 1 to 4, the seat assembly 3 includes a rear link 31 rotatably coupled to the push rod assembly 2, and the upper end of the third traction rod 15 is rotatably coupled to the rear link 31. When the infant stroller is used, a cloth bag can be hung on the rear connecting rod 31 for use, and an infant can be placed in the cloth bag for taking.

As shown in fig. 1-4, the seat assembly 3 further includes a front link 32 connected to a rear link 31. In the embodiment, the front link 32 is pivotally connected to the rear link 31, the front link 32 can be used to support legs when an infant is seated in the seat assembly 3, and the front link 32 can be pivoted relative to the rear link 31 to be folded when the infant needs to be folded, but the front link 32 and the rear link 31 can also be provided in a drawing manner.

As shown in fig. 1 to 4, the upper end of the linkage rod 16 is rotatably connected to the rear connecting rod 31, and the lower end of the linkage rod 16 is rotatably connected to the rear leg 12. The linkage 16 rotates to pull the rear link 31 toward the rear legs 12.

As shown in fig. 1 to 4, the upper end of the linkage rod 16 and the upper end of the third traction rod 15 are rotatably disposed on the rear connecting rod 31 around a first axis a. The linkage rod 16, the third traction rod 15 and the rear connecting rod 31 are coaxially arranged, so that the infant frame is simple and compact in structure and flexible to fold, and is also convenient to assemble in production and manufacturing.

As shown in fig. 1 to 4, the push rod assembly 2 includes a connecting rod 21 rotatably connected to the upper end of the rear leg 12, the connecting rod 21 is further connected to an outer push rod 22, the connecting rod 21 is vertically disposed, and an included angle between the connecting rod 21 and the outer push rod 22 is greater than 90 degrees. When the included angle between the connecting rod 21 and the outer push rod 22 is larger than 90 degrees, the outer push rod 22 inclines obliquely upwards relative to the connecting rod 21, so that a user can hold the baby carriage conveniently, the baby carriage is smoother to fold, and the whole baby carriage frame is more compact in structure.

As shown in fig. 1 to 4, the seat assembly 3 is pivotally connected to the connecting rod 21 about a second axis B.

As shown in fig. 2 to 4, the push rod assembly 2 further includes an inner push rod 23 connected to the connecting rod 21, and the transmission rod holder 41 is rotatably connected to the inner push rod 23. When the push rod assembly 2 rotates relative to the rear leg 12, the inner push rod 23 rotates along with the connecting rod 21, the transmission rod frame 41 rotates along with the inner push rod 23 and presses against the transmission rod 42 to move downwards, the upper end of the transmission rod 42 rotates relative to the inner push rod 23 and draws close to the seat assembly 3 when the outer push rod 22 rotates relative to the rear leg 12, the lower end of the transmission rod 42 moves downwards to push the seat assembly 3, and the transmission rod 42, the inner push rod 23 and the transmission rod frame 41 are matched with the seat assembly 3 to push the seat assembly 3 so that the seat assembly 3 rotates relative to the push rod assembly 2 and draws close to the rear leg 12.

As shown in fig. 1 to 4, the push rod assembly 2 is further rotatably connected with a hand push rod 17, a locking device 8 which can keep the hand push rod 17 and the push rod assembly 2 in an unfolded state is further arranged between the hand push rod 17 and the push rod assembly 2, and a locking device 9 which can keep the rear push rod 12 and the push rod assembly 2 in an unfolded state and can be unlocked in a linkage manner after the locking device 8 is unlocked is further arranged between the rear leg 12 and the push rod assembly 2. The user can push the infant car frame by holding the hand push lever 17. The hand push rod 17 and the push rod assembly 2 are locked through the locking device 8, the rear leg 12 and the push rod assembly 2 are locked through the locking device 9, double locking is achieved, the infant frame is kept in a unfolded state, the locking device 9 can be unlocked in a linkage mode when the locking device 8 is unlocked, unlocking is convenient, and the infant frame is convenient to use for a user.

As shown in fig. 5 to 6, the locking device 8 includes a left housing 81 disposed on the handle 17 and a right housing 82 disposed on the outer push rod 22, the left housing 81 and the right housing 82 are both provided with a locking groove 83 therein, the left housing 81 and the right housing 82 enclose an accommodating cavity 84, a first spline 85 capable of moving transversely therein and being simultaneously locked with the locking groove 83 on the left housing 81 and the right housing 82 is disposed in the accommodating cavity 84, the left housing 81 is provided with an oblique protrusion 811, a first pressing member 86 capable of pressing against the first spline 85 in cooperation with the oblique protrusion 811 during rotation to separate the first spline 85 from the left housing 81 is disposed between the left housing 81 and the first spline 85, a reset element 87 capable of resetting the first spline 85 is further disposed between the first spline 85 and the right housing 82, the handle 17 is further provided with an operating element 171 capable of pulling the first pressing member 86 to rotate during pressing, a first pulling cable 88 is arranged between the operating member 171 and the first pressing member 86 for connecting the two. The return element 87 is a spring.

When the push rod 17 and the outer push rod 22 need to be folded, the operating element 171 is pressed to move the operating element 171 upwards, when the operating element 171 moves upwards, the first pulling cable 88 can be tightened and the first pushing element 86 at the other end of the first pulling cable 88 is pulled to rotate, when the operating element 171 moves upwards, the first pushing element 86 contacts with the inclined protrusion 811 in the left shell 81 and pushes against the inclined protrusion 811 to move rightwards relative to the left shell 81, when the first pushing element 86 moves rightwards, the first pushing element 85 can push the first spline 85 to move rightwards, so that the first spline 85 is separated from the clamping groove 83 in the left shell 81 and is completely clamped in the right shell 82, at the moment, the locking device 8 is unlocked, and the push rod 17 can rotate relative to the outer push rod 22 to be folded.

When the push rod 17 and the outer push rod 22 need to be kept unfolded, the push rod 17 is rotated reversely, when the push rod 17 is rotated until the first spline 85 is aligned with the catching groove 83 in the left housing 81, the reset element 87 pushes the first spline 85 to move leftwards, the first spline 85 pushes the first jacking member 86 to move leftwards, the first jacking member 86 rotates relative to the left housing 81 until being attached to the inner wall of the left housing 81 and the outer wall of the inclined protrusion 811, and simultaneously the first spline 85 moves leftwards and is simultaneously caught in the catching groove 83 on the left housing 81 and the right housing 82, at this time, the locking device 8 is locked, and the push rod 17 and the outer push rod 22 are kept unfolded.

As shown in fig. 7 to 8, the locking device 9 includes a left connection shell 91 disposed on the connecting rod 21 and a right connection shell 92 disposed on the rear leg 12, the left connection shell 91 and the right connection shell 92 are both provided with a locking groove 93 therein, the left connection shell 91 and the right connection shell 92 enclose a cavity 94, the cavity 94 is provided with a second spline 95 capable of moving transversely therein and being simultaneously locked with the locking groove 93 on the left connection shell 91 and the right connection shell 92, an elastic reset piece 98 capable of resetting the second spline 95 is further disposed between the second spline 95 and the right connection shell 92, the left connection shell 91 is provided with an oblique protruding portion, the left connection shell 91 and the second spline 95 are provided with a second abutting piece 96 capable of pushing the second spline 95 to be disengaged from the left connection shell 91 by cooperating with the oblique protruding portion 911 when rotating, the first abutting piece 85 and the right connection shell 82 are provided with a second abutting piece 96 capable of rotating when the second abutting piece is pulled to rotate by rotating the second abutting piece 911 The second pull rope 99 is disposed between the rotation unlocking member 97 and the second pressing member 96 to connect the rotation unlocking member 97 and the second pressing member 96. The resilient return member 98 is a spring.

When the infant stroller frame needs to be folded, the locking device 8 is unlocked, the hand push rod 17 rotates relative to the outer push rod 22, the left outer shell 81 pushes the rotating unlocking piece 97 to rotate in the process of rotating along with the hand push rod 17, the rotating unlocking piece 97 pulls the second pull cable 99 to move upwards when rotating, the second pull cable 99 is tightened when moving upwards and pulls the second jacking piece 96 connected to the other end of the second pull cable to rotate, the second jacking piece 96 contacts with the inclined protrusion 911 in the left connection shell 91 and butts against the inclined protrusion 911 to move rightwards relative to the left connection shell 91 when rotating, when moving rightwards, the second jacking piece 96 can push against the second spline 95 to move rightwards, so that the second spline 95 is separated from the clamping groove 93 in the left connection shell 91 and is completely clamped into the right connection shell 92, at the moment, the locking device 9 is unlocked, the connecting rod 21 can rotate relative to the rear leg 12, and the infant stroller frame can be folded. Because the connecting rod 21 is connected with the outer push rod 22, the locking device 9 is unlocked after the push hand push rod 17 rotates relative to the outer push rod 22 and approaches, so that the locking device 8 and the locking device 9 can be unlocked in a linkage manner only by pressing the operating piece 171 and rotating the hand push rod 17, the unlocking manner is simple, and the operation of a user is convenient.

When the connecting rod 21 and the rear leg 12 need to be kept in the unfolded state, the outer push rod 22 is rotated reversely, when the outer push rod 22 is rotated until the second spline 95 is aligned with the engaging groove 93 in the left connection shell 91, the elastic reset member 98 pushes the second spline 95 to move leftward, the second spline 95 pushes the second pressing member 96 to move leftward, the second pressing member 96 moves leftward relative to the left connection shell 91 until the second pressing member abuts against the inner wall of the left connection shell 91 and the outer wall of the inclined protrusion 911, and meanwhile, the second spline 95 moves leftward and is simultaneously engaged with the engaging grooves 93 on the left connection shell 91 and the right connection shell 92, at this time, the locking device 9 is locked, and the connecting rod 21 and the rear leg 12 are kept in the unfolded state.

As shown in fig. 5 to 6, the rotary unlocking member 97 is provided with an insertion part 971 extending transversely and penetrating the first spline 85, and a pressing part 812 capable of pushing the insertion part 971 to rotate the rotary unlocking member 97 after rotating a certain angle is provided in the left housing 81.

After the right shell 82 on the handspike 17 rotates a certain angle, the top pressure portion 812 and the insertion portion 971 in the left shell 81 abut against each other, the handspike 17 continues to rotate, at this moment, the top pressure portion 812 pushes the rotation unlocking piece 97 to rotate, the rotation unlocking piece 97 pulls the second inhaul cable 99 to move upwards and tighten when rotating, and then the second top pressure piece 96 is pulled to unlock the locking device 9, a space for the insertion portion 971 to rotate is provided in the first spline 85, the rotation unlocking piece 97 is prevented from being blocked with the first spline 85, and unlocking cannot be rotated.

Example 2: as shown in fig. 9, the present embodiment is different from embodiment 1 in that:

the present embodiment does not include an inner push rod, and the driving rod frame 41 is rotatably connected to the outer push rod 22. When the push rod assembly 2 rotates relative to the rear leg 12, the push rod 22 rotates together with the connecting rod 21, the transmission rod holder 41 rotates along with the outer push rod 22 and pushes the transmission rod 42 to move downward, the upper end of the transmission rod 42 rotates relative to the push rod 22 and approaches the seat assembly 3 when the outer push rod 22 rotates relative to the rear leg 12, the lower end of the transmission rod 42 moves downward to push the seat assembly 3, and the transmission rod 42, the push rod 22 and the transmission rod holder 41 cooperate to push the seat assembly 3 so that the seat assembly 3 rotates relative to the push rod assembly 2 and approaches the rear leg 12.

Claims

1. An infant carrier movable from an unfolded position to a folded position after a locking device is unlocked, comprising:

the lower ends of the front legs (11) are provided with front wheel assemblies (71);

the lower ends of the rear legs (12) are provided with rear wheel assemblies (72), and the front legs (11) are rotatably connected to the rear legs (12);

the lower end of the push rod component (2) is rotatably connected with the upper ends of the rear legs (12);

the seat assembly (3), the said seat assembly (3) is connected to the assembly of push rod (2) rotatably;

the upper end of the linkage rod (16) is rotatably connected to the seat component (3), and the lower end of the linkage rod (16) is rotatably connected to the rear legs (12);

the folding traction assembly (6) is rotatably connected to the rear legs (12), one end of the folding traction assembly (6) is rotatably connected with the front legs (11), and the other end of the folding traction assembly is rotatably connected with the seat assembly (3) so that the seat assembly (3) and the front legs (11) can be drawn to be close to and folded towards the rear legs (12) when the baby carriage is folded.

2. An infant carrier according to claim 1, wherein: the folding traction assembly (6) comprises a first traction rod (13), a second traction rod (14) and a third traction rod (15), the front end of the first traction rod (13) is rotatably connected to the front leg (11), the front end of the second traction rod (14) is rotatably connected with the rear end of the first traction rod (13), the rear end of the second traction rod (14) is rotatably connected to the rear leg (12), the lower end of the third traction rod (15) is rotatably connected to the second traction rod (14), and the upper end of the third traction rod (15) is rotatably connected to the seat assembly (3).

3. An infant carrier according to claim 1 or 2, wherein: a transmission component (4) which is rotationally connected with the push rod component (2) and the seat component (3) is also arranged between the push rod component and the seat component.

4. An infant carrier according to claim 3, wherein: drive assembly (4) including rotate connect in drive lever frame (41) on push rod subassembly (2), drive lever frame (41) and seat subassembly (3) between be equipped with the two transfer line (42) of rotating and being connected, the upper end of transfer line (42) rotate and connect in the lower extreme of drive lever frame (41), the lower extreme of drive lever frame (41) rotate and connect in the rear side of seat subassembly (3).

5. An infant carrier according to claim 2, wherein: the seat assembly (3) comprises a rear connecting rod (31) which is rotatably connected to the push rod assembly (2), and the upper end of the third traction rod (15) is rotatably connected to the rear connecting rod (31).

6. An infant carrier according to claim 5, wherein: the upper end of the linkage rod (16) is rotatably connected to the rear connecting rod (31), and the lower end of the linkage rod (16) is rotatably connected to the rear legs (12).

7. An infant carrier according to claim 6, wherein: the upper end of the linkage rod (16) and the upper end of the third traction rod (15) are rotatably arranged on the rear connecting rod (31) around a first axis (A).

8. An infant carrier according to claim 3, wherein: push rod subassembly (2) include connecting rod (21) of being connected with back leg (12) upper end rotation, connecting rod (21) on still be connected with outer push rod (22), connecting rod (21) vertical setting to the contained angle of connecting rod (21) and outer push rod (22) is greater than 90 degrees.

9. An infant carrier according to claim 8, wherein: the seat component (3) is rotatably connected to the connecting rod (21) around a second axis (B).

10. An infant carrier according to claim 8, wherein: the transmission assembly (4) comprises a transmission rod frame (41) which is rotatably connected to the outer push rod (22), a transmission rod (42) which is arranged between the transmission rod frame (41) and the seat assembly (3) and can drive the seat assembly (3) to rotate when the baby carriage frame is folded, the transmission rod frame (41) rotates downwards, the upper end of the transmission rod (42) is rotatably connected to the lower end of the transmission rod frame (41), and the lower end of the transmission rod frame (41) is rotatably connected to the rear side of the seat assembly (3);

or, the push rod assembly (2) further comprises an inner push rod (23) connected to the connecting rod (21), the transmission assembly (4) comprises a transmission rod frame (41) rotatably connected to the inner push rod (23), a transmission rod (42) which is used for driving the transmission rod frame (41) to rotate downwards to push the seat assembly (3) to rotate when the baby carriage frame is folded is arranged between the transmission rod frame (41) and the seat assembly (3), the upper end of the transmission rod (42) is rotatably connected to the lower end of the transmission rod frame (41), and the lower end of the transmission rod frame (41) is rotatably connected to the rear side of the seat assembly (3).