CN116198583B

CN116198583B - Child cart

Info

Publication number: CN116198583B
Application number: CN202310335846.XA
Authority: CN
Inventors: 马福生; 张阳
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2024-11-05
Anticipated expiration: 2043-03-31
Also published as: CN116198583A

Abstract

The invention relates to a child stroller, which comprises a frame and a seat pocket, wherein the frame comprises a front support, a rear support, an upper push rod, a lower push rod and a stay rod, any two of the front support, the lower push rod and the rear support are connected through pivots, and the rest one is connected with at least one pivot of the two; the upper push rod is respectively in pivot connection with the supporting rod and the lower push rod; the stay bar is also in pivot connection with the rear bracket; the seat pocket comprises a seat pocket body and a bottom plate assembly, wherein the bottom plate assembly comprises a front bottom plate and a rear bottom plate which is in sliding connection with the front bottom plate, the front part of the front bottom plate is in pivot connection with any one of a front support, a lower push rod and a rear support, the rear part of the rear bottom plate is in pivot connection with a support rod, and the seat pocket body is rotationally connected on the rear bottom plate or the front bottom plate around a vertical shaft, so that the seat pocket has a forward use state and a reverse use state. The seat pocket of the child stroller can realize reversing, can be folded along with the frame in the forward and reverse use states, and is flat and very small in volume.

Description

Child cart

Technical Field

The invention relates to the field of children products, in particular to a child trolley.

Background

The child cart is an important transportation means with convenient child travel, and is usually foldable for convenient carrying. Chinese patent CN110723191a discloses a child cart, including openable and foldable frame, front wheel and rear wheel connected at the bottom of frame, the frame includes push rod, bottom connect front bracket of front wheel, bottom connect rear bracket of rear wheel, push rod, front bracket, arbitrary two in the rear bracket are rotated each other and are connected, this frame still includes seat pole and bedplate, the front portion of seat pole is rotated with the rear bracket and is connected and the rear portion of seat pole is rotated with last connecting rod and is connected, bedplate and seat pole can be slided the ground around. The child stroller adopts a seat mechanism formed by a seat rod and a seat plate, and cannot be reversed.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and providing the baby carriage with the foldable frame when the seat pocket can be reversed and the seat pocket is forward and backward, wherein the baby carriage is flat as a whole after being folded and has small volume.

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

The baby carriage comprises a carriage frame with an unfolding state and a folding state, a front wheel assembly and a rear wheel assembly, wherein the carriage frame comprises a front bracket with the front wheel assembly at the bottom, a rear bracket with the rear wheel assembly at the bottom, an upper push rod, a lower push rod and a stay rod,

Any two of the front bracket, the lower push rod and the rear bracket are in pivot connection, and the rest is in pivot connection with at least one of the two brackets;

The upper push rod is respectively in pivot connection with the supporting rod and the lower push rod;

The stay bar is also in pivot connection with the rear bracket;

The child stroller further comprises a seat pocket;

The seat pocket comprises a foldable seat pocket body and a bottom plate assembly, wherein in the unfolded state of the child stroller, the bottom plate assembly comprises a front bottom plate extending along the front-back direction of the child stroller and a rear bottom plate slidingly connected with the front bottom plate along the front-back direction of the child stroller, the front part of the front bottom plate is in pivot connection with any one of the front support, the lower push rod and the rear support, the rear part of the rear bottom plate is in pivot connection with the support rod, and the seat pocket body is rotationally connected to the rear bottom plate or the front bottom plate around a vertical shaft extending along the up-down direction, so that the seat pocket has a forward use state and a reverse use state;

the seat pocket can be folded together with the frame in a forward use state and a reverse use state.

In some embodiments, the stay bar comprises a stay bar body and a stay bar connecting part fixedly arranged on the stay bar body, the rear bottom plate is in pivot connection with the stay bar connecting part, in the unfolded state of the stroller, the upper part of the stay bar body is in pivot connection with the lower part of the upper push rod, the lower part of the stay bar body is in pivot connection with the rear support, and the connecting part of the rear bottom plate and the stay bar connecting part is positioned behind the stay bar body. Therefore, when the child stroller is folded, the bottom plate assembly can be as far ahead as possible, the folded seat pocket can fully utilize the gap between the bottom plate assembly and the rear support, and the folded stroller is as flat as possible.

Further, when the child stroller is folded, the seat pocket body, the bottom plate assembly, the upper push rod, the lower push rod, the front support and the rear support are mutually close, and the connection part of the rear bottom plate and the supporting rod connection part is positioned in front of the rear support.

In some embodiments, in the deployed state of the stroller, the brace body extends obliquely from front to back in the up-down direction.

In some embodiments, the front floor is stowed within the rear floor when the stroller is in the deployed state; when the child stroller is in a folded state, the front floor extends out of the rear floor.

In some embodiments, the seat pocket body includes a seat plate rotatably coupled to the rear floor about the vertical axis, a grab bar rotatably coupled to a rear end of the seat plate at a lower end, a backrest bar rotatably coupled to a rear end of the seat plate at a lower end, and a foot rest bar rotatably coupled to a front end of the seat plate at an upper end.

In some embodiments, the seat pocket further comprises a locking mechanism for locking the seat pocket in a forward use state or a reverse use state and an unlocking member for unlocking the locking mechanism.

In some specific embodiments, the rear bottom plate is provided with a turntable, the locking mechanism comprises a front locking groove and a rear locking groove which are respectively arranged on the front side and the rear side of the turntable, a locking piece arranged on the seat plate and an elastic piece arranged between the locking piece and the seat plate, and when the locking piece is inserted into the front locking groove, the locking mechanism locks the seat pocket in a positive use state; when the locking piece is inserted into the rear locking groove, the locking mechanism locks the seat pocket in a reverse use state; when the locking mechanism is unlocked, the unlocking piece is operated to overcome the elastic force of the elastic piece so that the locking piece is separated from the front locking groove or the rear locking groove.

In some embodiments, the frame further comprises a first link, a second link, and a slider, wherein two ends of the first link are respectively pivotally connected to the second link and the front bracket, the second link is further pivotally connected to the rear bracket, the slider is slidably disposed on the second link along a length direction of the second link, and the slider is further pivotally connected to the stay.

In some embodiments, in the deployed state of the stroller, the front floor is pivotally connected to the front support, and the connection between the first link and the front support is located below the connection between the front floor and the front support; in the length direction of the rear support, the connection part of the front support or the lower push rod and the rear support, the connection part of the support rod and the rear support and the connection part of the second connecting rod and the rear support are sequentially distributed from top to bottom; the junction of vaulting pole and last push rod is located the below of the junction of push rod down and last push rod.

In some embodiments, the front and rear wheel assemblies are each flipped over to extend the axle in a front-to-rear direction when the stroller is in a collapsed condition. Therefore, the baby carriage is flat after being folded, and has small volume.

Specifically, a first turnover mechanism is arranged between the front bracket and the front wheel assembly, and a second turnover mechanism is arranged between the rear bracket and the rear wheel assembly;

The first turnover mechanism comprises a first wheel joint connected with the front wheel assembly, the first wheel joint and the front bracket can be connected in a relative rotation manner, a first spiral groove is formed in the first wheel joint, the first turnover mechanism further comprises a first driving rod which is arranged on the front bracket in a sliding and rotating manner, the first driving rod is rotationally and slidingly inserted into the first spiral groove, and the first driving rod drives the first wheel joint to rotate through the folding of the frame so as to drive the front wheel assembly to turn;

The second tilting mechanism includes with the second wheel joint that the rear wheel subassembly links to each other, the second wheel connect with the rear bracket can rotate relatively and be connected, the second wheel connects and has the second helicla flute, the second tilting mechanism still is in including sliding and rotating the second actuating lever that sets up on the rear bracket, the second actuating lever rotates and slides and insert and establish in the second helicla flute, the second actuating lever passes through the folding motion of driving of frame and then drives the second wheel connects and rotates, thereby drives the rear wheel subassembly upset.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

the seat pocket is connected to the frame of the child stroller, so that the seat pocket can be reversed, and can be folded along with the frame in the forward and reverse use states, and the folded child stroller is flat and has a very small volume.

Drawings

FIG. 1 is a schematic side view of a child stroller in an unfolded state (seat pocket in forward use) according to an exemplary embodiment of the present invention;

FIG. 2 is a schematic front view of the stroller of FIG. 1;

FIG. 3 is a schematic cross-sectional view of A-A of FIG. 2;

fig. 4 is a perspective view of the stroller of fig. 1 (seat pocket body not shown)

FIG. 5 is a schematic view of the stroller of FIG. 4 in a semi-collapsed condition;

FIG. 6 is a schematic view of the stroller of FIG. 5 (showing a portion of the first flip mechanism) in another view;

FIG. 7 is an enlarged view of FIG. 6 at B;

FIGS. 8-10 are schematic views of the child stroller of FIG. 1 in a folded configuration at three different viewing angles;

FIG. 11 is a perspective view of the stroller of FIG. 1 in an unfolded state (seat pocket inverted use state);

FIG. 12 is a side schematic view of the child stroller of FIG. 11;

FIGS. 13-15 are schematic views of the stroller of FIG. 11 in a collapsed configuration at three different viewing angles;

In the figure: 100. a front wheel assembly; 200. a rear wheel assembly;

1. An upper push rod; 2. a push rod is downwards pushed; 3. a front bracket; 4. a rear bracket; 5. a brace rod; 5a, a stay bar body; 5b, a stay bar connecting part; 6. a first link; 7. a second link; 8. a slider; 9. a front bottom plate; 10. a rear floor; 10a, a turntable; 11. a seat plate; 12. a first helical groove; 13. a first driving lever; 14. a first connector; 15. a vertical axis; 16. a foot pedal lever; 17. a grab rail; 18. a backrest rod; 19. unlocking the handle; 20. a front lock groove; 21. a rear lock groove; 22. a locking member.

Detailed Description

The invention is further described with reference to the drawings and specific examples in the specification:

Referring to fig. 1 to 15, the stroller includes a frame having an unfolded state and a folded state, a front wheel assembly 100 provided at the bottom of the frame, a rear wheel assembly 200, and a seat pocket.

The frame comprises two side brackets which are arranged in bilateral symmetry and a transverse bracket which is connected between the two side brackets. Each side bracket comprises a front bracket 3 with a front wheel assembly 100 at the bottom, a rear bracket 4 with a rear wheel assembly 200 at the bottom, an upper push rod 1, a lower push rod 2 and a stay 5.

The specific structure of each side bracket in the unfolded state of the stroller in the present embodiment will be specifically described with reference to fig. 1.

The lower end part of the lower push rod 2 and the upper end part of the rear bracket 4 are in pivot connection, and the upper end part of the front bracket 3 is in pivot connection with the upper part of the rear bracket 4; the lower end part of the upper push rod 1 is in pivot connection with the upper end part of the stay bar 5, the lower part of the upper push rod 1 is in pivot connection with the upper end part of the lower push rod 2, and the connection part of the upper push rod 1 and the lower push rod 2 is positioned above the connection part of the upper push rod 1 and the stay bar 5; the lower part of the stay 5 is pivotally connected with the middle part of the rear bracket 4.

In this example, each side bracket further includes a first link 6, a second link 7, and a sliding member 8, in which, in the unfolded state of the stroller, the front portion of the first link 6 is pivotally connected to the lower portion of the front bracket 3, the rear portion of the first link 6 is pivotally connected to the front portion of the second link 7, the rear portion of the second link 7 is pivotally connected to the lower portion of the rear bracket 4, and the sliding member 8 is a sliding sleeve that is sleeved on the second link 7 and slidably disposed along the length direction of the second link 7, and is also pivotally connected to the lower end portion of the stay 5.

When the stroller is in the unfolded state, the connection part of the first connecting rod 6 and the front bracket 3 is positioned below the connection part of the front bottom plate 9 and the front bracket 3; in the length direction of the rear support 4, the connection part of the lower push rod 2 and the rear support 4, the connection part of the stay rod 5 and the rear support 4 and the connection part of the second connecting rod 7 and the rear support 4 are distributed in sequence from top to bottom.

Referring to fig. 1 and 11, the seat pocket includes a foldable seat pocket body and a floor assembly, in a child stroller unfolded state, the floor assembly includes a front floor 9 extending in a front-rear direction of the child stroller and a rear floor 10 slidably connected with the front floor 9 in the front-rear direction of the child stroller, a front portion of the front floor 9 is pivotally connected with upper portions of the front brackets 3 on both sides, a rear portion of the rear floor 10 is pivotally connected with the braces 5 on both sides, and the seat pocket body is rotatably connected to the rear floor 10 about a vertical shaft 15 provided on the rear floor 10 and extending in an up-down direction, so that the seat pocket has a forward use state and a reverse use state, and the seat pocket can be folded together with the frame in both the forward use state and the reverse use state.

Referring to fig. 4, when the stroller is in the unfolded state, the front floor 9 is folded into the rear floor 10; when the stroller is in the collapsed condition, the front floor 9 extends beyond the rear floor 10.

Referring to fig. 3, the stay 5 includes a stay body 5a and a stay connection portion 5b fixedly provided at a middle portion of the stay body 5a, the rear floor 10 is pivotally connected to the stay connection portion 5b, the stay body 5a is inclined forward from the rear in a vertical direction in a deployed state of the stroller, an upper end portion of the stay body 5a is pivotally connected to a lower end portion of the upper push rod 1, a lower portion of the stay body 5a is pivotally connected to the rear bracket 4, and a lower end portion of the stay body 5a is pivotally connected to the slider 8.

The junction of back bottom plate 10 and vaulting pole connecting portion 5b is located the rear of vaulting pole body 5a, and when baby's shallow was folding, the seat pocket body was folding, seat pocket body, bottom plate subassembly, upper push rod 1, push rod 2 down, fore-stock 3 and back support 4 draw close each other, and the junction of back bottom plate 10 and vaulting pole connecting portion 5b is located the place ahead of back support 4 for the seat pocket after folding can make full use of the space between bottom plate subassembly and the back support 4, thereby makes the children after folding push more flat.

In this example, the seat pocket body includes a seat plate 11 rotatably connected to the rear bottom plate 10 around a vertical axis 15, a grab bar 17 rotatably connected to the rear end of the seat plate 11 at the lower end, a backrest bar 18 rotatably connected to the rear end of the seat plate 11 at the lower end, and a foot rest bar 16 rotatably connected to the front end of the seat plate 11 at the upper end, when the seat pocket is folded, the foot rest bar 16 and the seat plate 11 are substantially in the same plane, and the backrest bar 18 and the grab bar 17 are close to the seat plate 11, so that the seat pocket is more flat after being folded.

In this case, the seat pocket further includes a locking mechanism for locking the seat pocket in a forward use state or a reverse use state, and an unlocking member for unlocking the locking mechanism. The structure of the locking mechanism is not limited, and the existing locking mechanism can be adopted.

In this example, the rear chassis 10 has a circular turntable 10a, and the locking mechanism includes a front locking groove 20 and a rear locking groove 21 respectively formed on front and rear sides of the turntable 10a, a locking member 22 disposed on the seat board 11, and an elastic member disposed between the locking member 22 and the seat board 11, where the unlocking member is an unlocking handle 19, and the unlocking handle 19 is connected to the locking member 22 or the unlocking handle 19 is integrally disposed with the locking member 22. When the locking piece 22 is inserted into the front locking groove 20, the seat pocket is locked in a positive use state by the locking mechanism; when the locking piece 22 is inserted into the rear locking groove 21, the locking mechanism locks the seat pocket in a reverse use state; when the locking mechanism is unlocked, the unlocking handle 19 is operated to overcome the elastic force of the elastic member so that the locking member 22 is disengaged from the front locking groove 20 or the rear locking groove 21.

To further flatten the stroller when folded, both the front wheel assembly 100 and the rear wheel assembly 200 are flipped over with the axle extending in a front-to-rear direction when the stroller is in the folded condition.

A first tilting mechanism is provided between the front frame 3 and the front wheel assembly 100, and a second tilting mechanism is provided between the rear frame 4 and the rear wheel assembly 200.

Specifically, referring to fig. 7 to 8, the first tilting mechanism includes a first wheel joint connected to the front wheel assembly 100, the first wheel joint is rotatably connected to the front bracket 3, the first wheel joint has a first spiral groove 12 thereon, the first tilting mechanism further includes a first driving rod 13 slidably and rotatably disposed on the front bracket 3, the first driving rod 13 is rotatably and slidably inserted into the first spiral groove 12, and the first driving rod 13 is folded through a frame to drive the movement to drive the first wheel joint to rotate, thereby driving the front wheel assembly 100 to tilt.

The second tilting mechanism includes the second wheel joint that links to each other with rear wheel subassembly 200, and the second wheel joint is connected with rear bracket 4 can relative rotation, has the second helicla flute on the second wheel joint, and the second tilting mechanism still includes the slip and rotates the second actuating lever that sets up on rear bracket 4, and the second actuating lever rotates and slides and insert and establish in the second helicla flute, and the second actuating lever passes through the folding motion of frame and then drives the second wheel joint and rotate to drive rear wheel subassembly 200 upset.

The first driving rod 13 is connected with a first connecting piece 14, and the first connecting piece 14 is also connected with the first connecting rod 6 in a pivot way; the second driving rod is connected with a second connecting piece which is also connected with a second connecting rod 7 in a pivot way. In the unfolded state of the stroller, the connection part of the first connecting piece 14 and the first connecting rod 6 is positioned below the connection part of the front bracket 3 and the first connecting rod 6; the connection of the second connecting piece and the second connecting rod 7 is positioned below the connection of the rear bracket 4 and the second connecting rod 7.

In this embodiment, the front support 3 and the front wheel assembly 100 of the side supports on both sides are provided with first turnover mechanisms, the rear support 4 and the rear wheel assembly 200 on both sides are provided with second turnover mechanisms, the first turnover mechanisms on both sides can share a first driving rod 13, the second turnover mechanisms on both sides can share a second driving rod, and the first driving rod 13 and the second driving rod are cross rods arranged between the side supports on both sides.

Folding process of the baby carriage:

Referring to fig. 1 to 3, the stroller is in an unfolded state and the seat pocket is in a forward use state, and the front floor 9 is folded into the rear floor 10.

When the baby stroller is folded, the seat pocket can be folded firstly, the pedal rod 16 and the seat board 11 are basically in the same plane, the backrest rod 18 and the grab bar 17 are turned forwards and are close to the seat board 11, the upper push rod 1 is turned forwards and pressed downwards, the lower push rod 2 and the supporting rod 5 are driven to move downwards and are close to the rear support 4, the rear bottom plate 10 and the front bottom plate 9 are driven to slide and spread mutually, the bottom plate component is made to be close to the front of the rear support 4 as much as possible, and the seat pocket is made to utilize gaps between the bottom plate component and the rear support 4 as much as possible, so that the whole stroller is flat as much as possible after being folded.

The movement of the stay 5 drives the slider 8 to slide forward on the second link 7 while the front portion of the second link 7 is rotated upward to bring the rear bracket 4 closer together, and the front bracket 3 is pulled toward the rear bracket 4 via the first link 6.

And the second connecting rod 7 pulls the second driving rod to slide upwards on the rear bracket 4 through the second connecting piece in the process of approaching the rear bracket 4, so that the second driving rod slides upwards in the second spiral groove, thereby enabling the second wheel joint to pivot relative to the rear bracket 4, driving the rear wheel assembly 200 to turn over 90 degrees, enabling the wheel axle of the rear wheel assembly 200 to extend along the front-rear direction, and the rear wheel assembly 200 is positioned between the rear brackets 3 on two sides.

In the process that the second connecting rod 7 approaches the rear bracket 4, the first connecting rod 6 is driven to rotate, in the process that the first connecting rod 6 rotates, the first driving rod 13 is pulled to slide upwards on the front bracket 3 through the first connecting piece 14, so that the first driving rod 13 slides upwards in the first spiral groove 12, the first wheel joint is enabled to pivot relative to the front bracket 3, the front wheel assembly 100 is driven to turn over 90 degrees, the wheel shaft of the front wheel assembly 100 extends along the front-rear direction, and the front wheel assembly 100 is located between the front brackets 3 on two sides.

After folding, as shown in figures 8-10, the baby carriage is flat and small in size after folding.

Referring to fig. 11 to 12, the stroller is in a unfolded state and the seat pocket is in a reverse use state, and the front floor 9 is folded in the rear floor 10.

When the stroller is folded, the seat pocket is folded firstly, so that the foot rest rod 16 and the seat board 11 are basically in the same plane, the backrest rod 18 and the armrest rod 17 are turned backwards and are close to the seat board 11, the upper push rod 1 is turned forwards and is pressed downwards, and the folding process of the frame is the same as above and is not repeated here. After folding, as shown in figures 13-15, the stroller is flat and small in size after folding.

It can be seen that seat pocket not only can the switching-over, forward service condition and reverse service condition all can be folded along with the frame moreover, and the seat pocket after folding can make full use of the space between bottom plate subassembly and the rear bracket for the shallow after folding is flatter, and the volume is littleer.

In the description of the present invention, reference to "pivotally connected" means that a plurality of members are connected to each other by a rotational shaft about which the connected members can rotate.

In the description of the present invention, reference is made to directions such as "front", "rear", "left", "right", "up", "down", etc., which are defined with reference to directions observed when a user pushes, that is, as shown in fig. 1, a left direction in the drawing is "front", a right direction in the drawing is "rear", an upper direction in the drawing is "up", a lower direction in the drawing is "down", directions perpendicular to a viewing angle in the drawing are "left" and "right", and the definition of the above directions is merely for convenience of description and simplification of description, and does not indicate or imply that the device or element to be referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present invention.

The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims

1. The baby carriage comprises a carriage frame with an unfolding state and a folding state, a front wheel assembly and a rear wheel assembly, wherein the carriage frame comprises a front bracket with the front wheel assembly at the bottom, a rear bracket with the rear wheel assembly at the bottom, an upper push rod, a lower push rod and a stay rod,

The stay bar is also in pivot connection with the rear bracket;

The method is characterized in that: the child stroller further comprises a seat pocket;

the seat pocket can be folded together with the frame in the forward use state and the reverse use state,

Wherein the stay bar comprises a stay bar body and a stay bar connecting part fixedly arranged on the stay bar body, the rear bottom plate is in pivot connection with the stay bar connecting part, in the child stroller unfolding state, the upper portion of the stay bar body is in pivot connection with the lower portion of the upper push rod, and the lower portion of the stay bar body is in pivot connection with the rear support.

2. The stroller of claim 1, wherein: the junction of back bottom plate with the vaulting pole connecting portion is located the rear of vaulting pole body.

3. The stroller of claim 2, wherein: when the baby stroller is folded, the seat pocket body, the bottom plate assembly, the upper push rod, the lower push rod, the front support and the rear support are mutually close, and the joint of the rear bottom plate and the supporting rod connecting part is positioned in front of the rear support.

4. The stroller of claim 2, wherein: in the unfolded state of the child stroller, the stay bar body extends obliquely from front to back along the up-down direction.

5. The stroller of claim 1, wherein: when the child stroller is in the unfolded state, the front bottom plate is folded in the rear bottom plate; when the child stroller is in a folded state, the front floor extends out of the rear floor.

6. The stroller of claim 1, wherein: the seat pocket body comprises a seat plate, a grab bar, a backrest bar and a pedal bar, wherein the seat plate is rotationally connected to the rear bottom plate around the vertical shaft, the grab bar is rotationally connected to the rear end part of the seat plate at the lower end part of the grab bar, the backrest bar is rotationally connected to the rear end part of the seat plate at the lower end part of the grab bar, and the pedal bar is rotationally connected to the front end part of the seat plate at the upper end part of the grab bar; and/or, the seat pocket further comprises a locking mechanism for locking the seat pocket in a forward use state or a reverse use state and an unlocking piece for unlocking the locking mechanism.

7. The stroller of claim 6, wherein: the locking mechanism comprises a front locking groove and a rear locking groove which are respectively arranged on the front side and the rear side of the turntable, a locking piece arranged on the seat plate and an elastic piece arranged between the locking piece and the seat plate, and when the locking piece is inserted into the front locking groove, the locking mechanism locks the seat pocket in a forward use state; when the locking piece is inserted into the rear locking groove, the locking mechanism locks the seat pocket in a reverse use state; when the locking mechanism is unlocked, the unlocking piece is operated to overcome the elastic force of the elastic piece so that the locking piece is separated from the front locking groove or the rear locking groove.

8. The stroller of any one of claims 1-7, wherein: the frame also comprises a first connecting rod, a second connecting rod and a sliding piece, wherein the two ends of the first connecting rod are respectively connected with the second connecting rod and the front support in a pivot way, the second connecting rod is also connected with the rear support in a pivot way, the sliding piece is arranged on the second connecting rod in a sliding way along the length direction of the second connecting rod, and the sliding piece is also connected with the supporting rod in a pivot way.

9. The stroller of claim 8, wherein: in the unfolded state of the child stroller, the front bottom plate is pivotally connected with the front support, and the connection part of the first connecting rod and the front support is positioned below the connection part of the front bottom plate and the front support; in the length direction of the rear support, the connection part of the front support or the lower push rod and the rear support, the connection part of the support rod and the rear support and the connection part of the second connecting rod and the rear support are sequentially distributed from top to bottom; the joint of the stay bar and the upper push bar is positioned below the joint of the lower push bar and the upper push bar; and/or when the child stroller is in a folded state, the front wheel assembly and the rear wheel assembly are turned over until the wheel shafts extend in the front-rear direction.

10. The stroller of claim 9, wherein: a first turnover mechanism is arranged between the front support and the front wheel assembly, and a second turnover mechanism is arranged between the rear support and the rear wheel assembly;