CN116198583B - Child cart - Google Patents

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

A child stroller

Technical Field

The invention relates to the field of children's products, and in particular to a children's stroller.

Background Art

A child stroller is an important means of transportation for children to travel conveniently. For the convenience of carrying, the child stroller is usually foldable. Chinese patent CN110723191A discloses a child stroller, including an openable and foldable frame, a front wheel and a rear wheel connected to the bottom of the frame, the frame including a push rod, a front bracket connected to the front wheel at the bottom, and a rear bracket connected to the rear wheel at the bottom, any two of the push rod, the front bracket, and the rear bracket are rotatably connected to each other, the frame also includes a seat rod and a seat plate, the front part of the seat rod is rotatably connected to the rear bracket and the rear part of the seat rod is rotatably connected to the upper connecting rod, and the seat plate is connected to the seat rod so as to be able to slide forward and backward. The child stroller uses the seat rod and the seat plate to form a seat mechanism, which cannot be reversed.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a child stroller with a reversible seat pocket and a foldable frame in both the forward and reverse directions of the seat pocket. After being folded, the child stroller is flat as a whole and has a small volume.

In order to achieve the above object, the technical solution adopted by the present invention is:

A baby stroller comprises a frame having an unfolded state and a folded state, a front wheel assembly and a rear wheel assembly, wherein the 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 support rod, wherein:

Any two of the front bracket, the lower push rod, and the rear bracket are connected by pivots, and the remaining one is connected to at least one of the two pivots;

The upper push rod is pivotally connected to the support rod and the lower push rod respectively;

The support rod is also pivotally connected to the rear support;

The child stroller also includes a seat pocket;

The seat pocket comprises a foldable seat pocket body and a bottom plate assembly. In the unfolded state of the stroller, the bottom plate assembly comprises a front bottom plate extending in the front-to-back direction of the stroller and a rear bottom plate slidably connected to the front bottom plate in the front-to-back direction of the stroller. The front portion of the front bottom plate is pivotally connected to any one of the front bracket, the lower push rod and the rear bracket, and the rear portion of the rear bottom plate is pivotally connected to the support rod. The seat pocket body is rotatably connected to the rear bottom plate or the front bottom plate around a vertical axis extending in 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 bicycle frame in both the forward use state and the reverse use state.

In some embodiments, the support rod includes a support rod body and a support rod connecting portion fixedly disposed on the support rod body, the rear bottom plate is pivotally connected to the support rod connecting portion, and when the child stroller is unfolded, the upper portion of the support rod body is pivotally connected to the lower portion of the upper push rod, the lower portion of the support rod body is pivotally connected to the rear support, and the connection between the rear bottom plate and the support rod connecting portion is located behind the support rod body. Thus, when the child stroller is folded, the bottom plate assembly can be as close to the front as possible, so that the folded seat pocket can fully utilize the gap between the bottom plate assembly and the rear support, so that the folded stroller is as flat as possible.

Furthermore, when the stroller is folded, the seat body is folded, the seat body, the bottom plate assembly, the upper push rod, the lower push rod, the front bracket, and the rear bracket are brought closer to each other, and the connection between the rear bottom plate and the support rod connecting part is located in front of the rear bracket.

In some specific embodiments, when the child stroller is in an unfolded state, the support rod body extends obliquely from front to rear along the up-down direction.

In some embodiments, when the child stroller is in an unfolded state, the front bottom plate is folded inside the rear bottom plate; when the child stroller is in a folded state, the front bottom plate extends out of the rear bottom plate.

In some embodiments, the seat pocket body includes a seat plate rotatably connected to the rear base plate about the vertical axis, an armrest rod rotatably connected to the rear end of the seat plate at its lower end, a backrest rod rotatably connected to the rear end of the seat plate at its lower end, and a footrest rod rotatably connected to the front end of the seat plate at its upper end.

In some embodiments, 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.

In some specific embodiments, the rear bottom plate is provided with a turntable, and the locking mechanism includes a front locking groove and a rear locking groove respectively opened on the front and rear sides of the turntable, a locking piece arranged on the seat plate, and an elastic piece arranged between the locking piece and the seat plate; when the locking piece is inserted in the front locking groove, the locking mechanism locks the seat pocket in a forward use state; when the locking piece is inserted in 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 disengages from the front locking groove or the rear locking groove.

In some embodiments, the frame further includes a first link, a second link and a sliding member, wherein the two ends of the first link are respectively connected to the second link and a front bracket pivot, the second link is also connected to the rear bracket pivot, the sliding member is slidably arranged on the second link along the length direction of the second link, and the sliding member is also connected to the support rod pivot.

In some specific embodiments, when the stroller is in the unfolded state, the front bottom plate is pivotally connected to the front bracket, and the connection between the first connecting rod and the front bracket is located below the connection between the front bottom plate and the front bracket; in the length direction of the rear bracket, the connection between the front bracket or the lower push rod and the rear bracket, the connection between the support rod and the rear bracket, and the connection between the second connecting rod and the rear bracket are distributed in sequence from top to bottom; the connection between the support rod and the upper push rod is located below the connection between the lower push rod and the upper push rod.

In some specific embodiments, when the stroller is in a folded state, the front wheel assembly and the rear wheel assembly are both turned over so that the wheel axles extend in the front-rear direction, so that the stroller is flat and small in size after being folded.

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

The first flipping mechanism includes a first wheel joint connected to the front wheel assembly, the first wheel joint and the front bracket can be relatively rotatably connected, the first wheel joint has a first spiral groove, the first flipping mechanism also includes a first driving rod slidably and rotatably arranged on the front bracket, the first driving rod is rotatably and slidably inserted in the first spiral groove, the first driving rod is driven to move by the folding of the frame and then drives the first wheel joint to rotate, thereby driving the front wheel assembly to flip;

The second flipping mechanism includes a second wheel joint connected to the rear wheel assembly, the second wheel joint and the rear bracket are connected to be relatively rotatable, and the second wheel joint is provided with a second spiral groove. The second flipping mechanism also includes a second driving rod slidably and rotatably arranged on the rear bracket, the second driving rod is rotatably and slidably inserted in the second spiral groove, and the second driving rod is driven to move by the folding of the frame and then drives the second wheel joint to rotate, thereby driving the rear wheel assembly to flip.

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

The frame of the child stroller of the present invention is connected with a seat pocket, which can not only realize reversal but also can be folded along with the frame in both forward and reverse use states. The folded child stroller is flat and has a very small size.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic side view of a child stroller according to a representative embodiment of the present invention in an unfolded state (the seat pocket is in forward use);

FIG2 is a schematic front view of the child stroller of FIG1 ;

Fig. 3 is a schematic cross-sectional view along the line A-A in Fig. 2;

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

FIG5 is a schematic diagram of the child stroller of FIG4 in a semi-folded state;

FIG6 is a schematic diagram of the child stroller of FIG5 from another viewing angle (partially showing the first flipping mechanism);

FIG7 is an enlarged view of point B in FIG6;

8 to 10 are schematic diagrams of the child stroller of FIG. 1 in a folded state at three different viewing angles;

FIG11 is a three-dimensional schematic diagram of the child stroller of FIG1 in an unfolded state (the seat pocket is in reverse use state);

FIG12 is a schematic side view of the child stroller of FIG11 ;

13 to 15 are schematic diagrams of the child stroller of FIG. 11 in a folded state at three different viewing angles;

In the figure: 100, front wheel assembly; 200, rear wheel assembly;

1. upper push rod; 2. lower push rod; 3. front bracket; 4. rear bracket; 5. support rod; 5a. support rod body; 5b. support rod connecting part; 6. first connecting rod; 7. second connecting rod; 8. sliding member; 9. front bottom plate; 10. rear bottom plate; 10a. turntable; 11. seat plate; 12. first spiral groove; 13. first drive rod; 14. first connecting member; 15. vertical axis; 16. foot pedal; 17. handrail rod; 18. backrest rod; 19. unlocking handle; 20. front lock groove; 21. rear lock groove; 22. locking member.

DETAILED DESCRIPTION

The present invention is further described below with reference to the accompanying drawings and specific embodiments:

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

The frame includes two side brackets symmetrically arranged on both sides and a cross bracket connected between the two side brackets. Each side bracket includes 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 support rod 5.

The specific structure of each side bracket in the unfolded state of the child stroller in this embodiment will be described in detail below with reference to FIG. 1 .

The lower end of the lower push rod 2 and the upper end of the rear bracket 4 are pivotally connected, and the upper end of the front bracket 3 is pivotally connected to the upper end of the rear bracket 4; the lower end of the upper push rod 1 is pivotally connected to the upper end of the support rod 5, the lower part of the upper push rod 1 is pivotally connected to the upper end of the lower push rod 2, and the connection between the upper push rod 1 and the lower push rod 2 is located above the connection between the upper push rod 1 and the support rod 5; the lower part of the support rod 5 is pivotally connected to the middle part of the rear bracket 4.

In this example, each side bracket also includes a first connecting rod 6, a second connecting rod 7 and a sliding member 8. When the child stroller is in the unfolded state, the front portion of the first connecting rod 6 is pivotally connected to the lower portion of the front bracket 3, the rear portion of the first connecting rod 6 is pivotally connected to the front portion of the second connecting rod 7, the rear portion of the second connecting rod 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 connecting rod 7 and slides along the length direction of the second connecting rod 7, and the sliding sleeve is also pivotally connected to the lower end portion of the support rod 5.

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

Referring to Figures 1 and 11, the seat pocket includes a foldable seat pocket body and a bottom plate assembly. When the child stroller is in the unfolded state, the bottom plate assembly includes a front bottom plate 9 extending in the front-to-rear direction of the child stroller and a rear bottom plate 10 slidably connected to the front bottom plate 9 in the front-to-rear direction of the child stroller. The front portion of the front bottom plate 9 is pivotally connected to the upper portions of the front brackets 3 on both sides, and the rear portion of the rear bottom plate 10 is pivotally connected to the support rods 5 on both sides. The seat pocket body is rotatably connected to the rear bottom plate 10 around a vertical axis 15 which is arranged on the rear bottom plate 10 and extends in the 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.

As shown in FIG. 4 , when the baby stroller is in the unfolded state, the front bottom plate 9 is folded inside the rear bottom plate 10 ; when the baby stroller is in the folded state, the front bottom plate 9 extends out of the rear bottom plate 10 .

Referring to Figure 3, the support rod 5 includes a support rod body 5a and a support rod connecting portion 5b fixedly arranged in the middle of the support rod body 5a, and the rear bottom plate 10 is pivotally connected to the support rod connecting portion 5b. When the child stroller is unfolded, the support rod body 5a extends obliquely from the back to the front along the up and down direction, the upper end of the support rod body 5a is pivotally connected to the lower end of the upper push rod 1, the lower part of the support rod body 5a is pivotally connected to the rear bracket 4, and the lower end of the support rod body 5a is pivotally connected to the sliding member 8.

The connection between the rear bottom plate 10 and the support rod connecting part 5b is located behind the support rod body 5a. When the child stroller is folded, the seat pocket body is folded, and the seat pocket body, the bottom plate assembly, the upper push rod 1, the lower push rod 2, the front bracket 3 and the rear bracket 4 are close to each other. The connection between the rear bottom plate 10 and the support rod connecting part 5b is located in front of the rear bracket 4, so that the folded seat pocket can make full use of the gap between the bottom plate assembly and the rear bracket 4, thereby making the folded child stroller flatter.

In this example, the seat pocket body includes a seat plate 11 rotatably connected to the rear base plate 10 around a vertical axis 15, an armrest rod 17 rotatably connected at the lower end to the rear end of the seat plate 11, a backrest rod 18 rotatably connected at the lower end to the rear end of the seat plate 11, and a footrest rod 16 rotatably connected at the upper end to the front end of the seat plate 11. When the seat pocket is folded, the footrest rod 16 and the seat plate 11 are basically in the same plane, and the backrest rod 18 and the armrest rod 17 are close to the seat plate 11, so that the seat pocket is flatter after being folded.

In this example, 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 an existing locking mechanism can be used.

In this example, a circular rotating disk 10a is provided on the rear bottom plate 10, and the locking mechanism includes a front locking groove 20 and a rear locking groove 21 respectively provided on the front and rear sides of the rotating disk 10a, a locking member 22 provided on the seat plate 11, and an elastic member provided between the locking member 22 and the seat plate 11, and the unlocking member is an unlocking handle 19, which is connected to the locking member 22 or is integrally provided with the unlocking handle 19 and the locking member 22. When the locking member 22 is inserted into the front locking groove 20, the locking mechanism locks the seat pocket in a forward use state; when the locking member 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 separated from the front locking groove 20 or the rear locking groove 21.

In order to make the child stroller flatter after being folded, when the child stroller is in the folded state, the front wheel assembly 100 and the rear wheel assembly 200 are both turned over so that the wheel axles extend in the front-to-back direction.

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

Specifically, referring to Figures 7 and 8, the first flipping mechanism includes a first wheel joint connected to the front wheel assembly 100, the first wheel joint is connected to the front bracket 3 so as to be relatively rotatable, and the first wheel joint has a first spiral groove 12. The first flipping mechanism also includes a first driving rod 13 which is slidably and rotatably arranged on the front bracket 3, the first driving rod 13 is rotatably and slidably inserted in the first spiral groove 12, and the first driving rod 13 is driven to move through the folding of the frame and then drives the first wheel joint to rotate, thereby driving the front wheel assembly 100 to flip.

The second flipping mechanism includes a second wheel joint connected to the rear wheel assembly 200, the second wheel joint is connected to the rear bracket 4 so as to be relatively rotatable, and a second spiral groove is provided on the second wheel joint. The second flipping mechanism also includes a second driving rod which is slidably and rotatably arranged on the rear bracket 4, and the second driving rod is rotatably and slidably inserted in the second spiral groove. The second driving rod is driven to move by the folding of the frame and then drives the second wheel joint to rotate, thereby driving the rear wheel assembly 200 to flip.

The first driving rod 13 is connected to a first connecting member 14, which is also pivotally connected to the first connecting rod 6; the second driving rod is connected to a second connecting member, which is also pivotally connected to the second connecting rod 7. When the stroller is unfolded, the connection between the first connecting member 14 and the first connecting rod 6 is located below the connection between the front support 3 and the first connecting rod 6; the connection between the second connecting member and the second connecting rod 7 is located below the connection between the rear support 4 and the second connecting rod 7.

In this embodiment, the front bracket 3 and the front wheel assembly 100 of the side brackets on both sides are provided with a first flipping mechanism, and a second flipping mechanism is provided between the rear bracket 4 and the rear wheel assembly 200 on both sides. The first flipping mechanisms on both sides can share a first driving rod 13, and the second flipping mechanisms on both sides can share a second driving rod. The first driving rod 13 and the second driving rod are cross bars arranged between the side brackets on both sides.

Folding process of the stroller:

1 to 3 , the stroller is in an unfolded state with the seat pocket facing forward and the front bottom plate 9 is folded into the rear bottom plate 10 .

When the stroller is folded, the seat pocket can be folded first, so that the footrest rod 16 and the seat plate 11 are basically in the same plane, and the backrest rod 18 and the armrest rod 17 are flipped forward and moved closer to the seat plate 11. Referring to Figures 5 and 6, the upper push rod 1 is flipped forward and pressed downward, driving the lower push rod 2 and the support rod 5 to move downward and move closer to the rear bracket 4, driving the rear bottom plate 10 and the front bottom plate 9 to slide and unfold with each other, and making the bottom plate assembly move closer to the front of the rear bracket 4 as much as possible, so that the seat pocket makes full use of the gap between the bottom plate assembly and the rear bracket 4, so that the whole vehicle is as flat as possible after folding.

The movement of the support rod 5 drives the sliding member 8 to slide forward on the second connecting rod 7 , and at the same time makes the front part of the second connecting rod 7 rotate upward and move closer to the rear bracket 4 , and pulls the front bracket 3 closer to the rear bracket 4 through the first connecting rod 6 .

During the process of the second connecting rod 7 approaching the rear bracket 4, the second driving rod is pulled by the second connecting member to slide upward on the rear bracket 4, so that the second driving rod slides upward in the second spiral groove, thereby causing the second wheel joint to pivot relative to the rear bracket 4, driving the rear wheel assembly 200 to flip 90°, so that the wheel axle of the rear wheel assembly 200 extends in the front-to-back direction, and the rear wheel assembly 200 is located between the rear brackets 3 on both sides.

As the second connecting rod 7 approaches the rear bracket 4, the first connecting rod 6 is driven to rotate. During the rotation of the first connecting rod 6, the first driving rod 13 is pulled to slide upward on the front bracket 3 through the first connecting member 14, so that the first driving rod 13 slides upward in the first spiral groove 12, thereby causing the first wheel joint to pivot relative to the front bracket 3, driving the front wheel assembly 100 to flip 90°, so that the wheel axle of the front wheel assembly 100 extends in the front-to-back direction, and the front wheel assembly 100 is located between the front brackets 3 on both sides.

After being folded as shown in Figures 8 to 10, the stroller is flat and small in size.

11-12 , the child stroller is in an unfolded state and the seat pocket is in a reverse use state, and the front bottom plate 9 is folded into the rear bottom plate 10 .

When the child stroller is folded, the seat pocket is folded first, so that the footrest rod 16 and the seat plate 11 are basically in the same plane, and the backrest rod 18 and the handrail rod 17 are turned backward and close to the seat plate 11, and then the upper push rod 1 is turned forward and pressed downward. The folding process of the frame is the same as above and will not be repeated here. After folding, as shown in Figures 13 to 15, the child stroller is flat and small in size.

It can be seen that the seat pocket can not only be reversed, but can also be folded along with the frame in both the forward and reverse use states, and the folded seat pocket can fully utilize the gap between the bottom plate assembly and the rear bracket, making the folded stroller flatter and smaller in size.

In the description of the present invention, the "pivot connection" mentioned means that a plurality of components are connected to each other via a rotation axis, and the connected components can rotate around the rotation axis.

In the description of the present invention, the directions involved, such as “front”, “rear”, “left”, “right”, “up” and “down”, are all defined with reference to the directions observed by the user when pushing the cart, that is, as shown in FIG1 , the left direction in the figure is “front”, the right direction in the figure is “rear”, the upper direction in the figure is “up”, the lower direction in the figure is “down”, and the directions perpendicular to the viewing angle in the figure are “left” and “right”. The definitions of the above directions are merely for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A stroller for children, comprising a frame having an unfolded state and a folded state, a front wheel assembly and a rear wheel assembly, wherein the 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 support rod, wherein: Any two of the front bracket, the lower push rod, and the rear bracket are connected by pivots, and the remaining one is connected to at least one of the two pivots; The upper push rod is pivotally connected to the support rod and the lower push rod respectively; The support rod is also pivotally connected to the rear support; The feature is that: the child stroller also includes a seat pocket; The seat pocket comprises a foldable seat pocket body and a bottom plate assembly. In the unfolded state of the stroller, the bottom plate assembly comprises a front bottom plate extending in the front-to-back direction of the stroller and a rear bottom plate slidably connected to the front bottom plate in the front-to-back direction of the stroller. The front portion of the front bottom plate is pivotally connected to any one of the front bracket, the lower push rod and the rear bracket, and the rear portion of the rear bottom plate is pivotally connected to the support rod. The seat pocket body is rotatably connected to the rear bottom plate or the front bottom plate around a vertical axis extending in 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 both forward and reverse use states. Among them, the support rod includes a support rod body and a support rod connecting part fixedly arranged on the support rod body, the rear bottom plate is pivotally connected to the support rod connecting part, and when the child stroller is unfolded, the upper part of the support rod body is pivotally connected to the lower part of the upper push rod, and the lower part of the support rod body is pivotally connected to the rear bracket. 2. The stroller according to claim 1, wherein the connection between the rear bottom plate and the support rod connecting portion is located behind the support rod body. 3. The stroller according to claim 2 is characterized in that: when the stroller is folded, the seat body is folded, the seat body, the bottom plate assembly, the upper push rod, the lower push rod, the front bracket, and the rear bracket are close to each other, and the connection between the rear bottom plate and the support rod connecting part is located in front of the rear bracket. 4. The stroller according to claim 2, wherein when the stroller is unfolded, the support rod body extends obliquely from front to rear along the up-down direction. 5. The stroller according to claim 1, wherein when the stroller is in an unfolded state, the front bottom plate is retracted into the rear bottom plate; when the stroller is in a folded state, the front bottom plate extends out of the rear bottom plate. 6. The stroller according to claim 1 is characterized in that: the seat pocket body includes a seat plate rotatably connected to the rear bottom plate around the vertical axis, an armrest rod rotatably connected to the rear end of the seat plate at the lower end, a backrest rod rotatably connected to the rear end of the seat plate at the lower end, and a footrest rod rotatably connected to the front end of the seat plate at the upper end; and/or the seat pocket also 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. 7. The stroller according to claim 6 is characterized in that: the rear bottom plate is provided with a turntable, and the locking mechanism comprises a front locking groove and a rear locking groove respectively opened on the front and rear sides 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 in the front locking groove, the locking mechanism locks the seat pocket in a forward use state; when the locking piece is inserted in 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 disengages from the front locking groove or the rear locking groove. 8. A stroller according to any one of claims 1 to 7, characterized in that: the frame further includes a first link, a second link and a sliding member, the two ends of the first link are respectively pivotally connected to the second link and the front bracket, the second link is also pivotally connected to the rear bracket, the sliding member is slidably arranged on the second link along the length direction of the second link, and the sliding member is also pivotally connected to the support rod. 9. The stroller according to claim 8 is characterized in that: when the stroller is in the unfolded state, the front bottom plate is pivotally connected to the front bracket, and the connection between the first connecting rod and the front bracket is located below the connection between the front bottom plate and the front bracket; in the length direction of the rear bracket, the connection between the front bracket or the lower push rod and the rear bracket, the connection between the support rod and the rear bracket, and the connection between the second connecting rod and the rear bracket are distributed in sequence from top to bottom; the connection between the support rod and the upper push rod is located below the connection between the lower push rod and the upper push rod; and/or when the stroller is in the folded state, the front wheel assembly and the rear wheel assembly are both flipped over so that the wheel axles extend in the front-to-back direction. 10. The baby stroller according to claim 9, characterized in that: a first flipping mechanism is provided between the front support and the front wheel assembly, and a second flipping mechanism is provided between the rear support and the rear wheel assembly; The first flipping mechanism includes a first wheel joint connected to the front wheel assembly, the first wheel joint and the front bracket can be relatively rotatably connected, the first wheel joint has a first spiral groove, the first flipping mechanism also includes a first driving rod slidably and rotatably arranged on the front bracket, the first driving rod is rotatably and slidably inserted in the first spiral groove, the first driving rod is driven to move by the folding of the frame and then drives the first wheel joint to rotate, thereby driving the front wheel assembly to flip; The second flipping mechanism includes a second wheel joint connected to the rear wheel assembly, the second wheel joint and the rear bracket are connected to be relatively rotatable, and the second wheel joint is provided with a second spiral groove. The second flipping mechanism also includes a second driving rod slidably and rotatably arranged on the rear bracket, the second driving rod is rotatably and slidably inserted in the second spiral groove, and the second driving rod is driven to move by the folding of the frame and then drives the second wheel joint to rotate, thereby driving the rear wheel assembly to flip.