CN212637607U

CN212637607U - Seat pocket and baby stroller with same

Info

Publication number: CN212637607U
Application number: CN202020336821.3U
Authority: CN
Inventors: 张标锋; 王俊马
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2021-03-02
Anticipated expiration: 2030-03-17

Abstract

The utility model discloses a seat pocket and have children's shallow of this seat pocket, have between bedplate interface seat and the seat pocket joint can limit the first locking mechanism of the two at first relative position, can limit the second locking mechanism of the two at second relative position, the seat pocket has open mode and first folded state at least, when the seat pocket is in open mode, the back is opened relative to the bedplate, be in first relative position between bedplate interface seat and the seat pocket joint, first locking mechanism is in the locked state, second locking mechanism is in the unlocked state; when the seat pocket is in the first folding state, the backrest is folded relative to the seat plate, the seat plate interface seat and the seat pocket connector are in the second relative position, the first locking mechanism is in the unlocking state, and the second locking mechanism is in the locking state. By adopting the technical scheme, when the folding is finished, the seat bag can not rotate on the frame, so that the cart is more compact in folding, smaller in volume and convenient to store and carry.

Description

Seat pocket and baby stroller with same

Technical Field

The utility model relates to a seat pocket and have children's shallow of this seat pocket belongs to children's articles for use.

Background

The baby carriage comprises a carriage frame and a seat bag connected to the carriage frame. The seat pocket and the frame are connected in a detachable and non-detachable mode. The detachable connection mode generally adopts a plug-in structure, namely, a plug-in port is arranged on the frame, a joint is arranged on the seat bag, and the joint is connected to the plug-in port in a plug-in manner. For convenient use, the frame and the seat pocket are both designed into a foldable structure, when the whole vehicle is folded, the seat pocket and the frame are both folded, and the folded seat pocket and the frame are mutually folded. When the cart is in normal use, the seat plate of the seat pocket and the frame are locked and kept at a fixed angle through the locking mechanism, the locking mechanism is usually arranged between the seat plate of the seat pocket and the joint, and when the cart is folded, in order to enable the size of the folded cart to be smaller, the locking mechanism is unlocked, the angle between the seat plate and the frame can be adjusted, and therefore the folded seat pocket and the frame are more compact. However, in the prior art, since the folded seat board and the frame are rotatable, when the position of the folded cart is changed, the seat pocket swings on the frame, so that the structure of the cart is loose, the volume is changed, and certain inconvenience is brought to storage and transportation.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a seat pocket and a stroller having the same.

In order to achieve the above purpose, the utility model discloses a technical scheme is: a seat pocket comprises a seat plate, a backrest and a seat pocket connector for connecting a frame of a baby stroller, wherein the seat plate is provided with a seat plate interface seat, the backrest is provided with a backrest interface seat, the seat plate interface seat, the backrest interface seat and the seat pocket connector are mutually and rotatably connected through the same rotating axis, a first locking mechanism capable of limiting the seat plate interface seat and the seat pocket connector at a first relative position and a second locking mechanism capable of limiting the seat plate interface seat and the seat pocket connector at a second relative position are arranged between the seat plate interface seat and the seat pocket connector,

the seat pocket at least has an opening state and a first folding state, when the seat pocket is in the opening state, the backrest is opened relative to the seat plate, the seat plate interface seat and the seat pocket connector are in a first relative position, the first locking mechanism is in a locking state, and the second locking mechanism is in an unlocking state; when the seat pocket is in the first folding state, the backrest is folded relative to the seat plate, the seat plate interface seat and the seat pocket connector are in the second relative position, the first locking mechanism is in the unlocking state, and the second locking mechanism is in the locking state.

Furthermore, the second locking mechanism comprises a locking block arranged on the seat plate in a sliding mode, an abutting surface arranged on the backrest interface seat and capable of being detachably abutted to the locking block, and a first locking groove arranged on the seat pocket connector, wherein the locking block is provided with a locking position and an unlocking position, the second locking mechanism further comprises an elastic piece arranged on the seat plate and capable of enabling the locking block to slide to the locking position from the unlocking position, when the backrest is opened relative to the seat plate, the abutting surface on the backrest interface seat is abutted to the locking block to enable the locking block to be limited to the unlocking position, the locking block and the first locking groove are kept to be separated from each other, when the backrest is relatively folded in and the seat plate interface seat plate and the seat pocket connector are located at the second relative position, the abutting surface on the backrest interface seat is separated from the locking block, and the locking block is driven by the elastic piece to slide to the locking position to be connected with the first locking groove.

Furthermore, the backrest interface seat is positioned between the seat board interface seat and the seat pocket connector, the backrest interface seat is provided with an avoiding groove, when the backrest is folded relative to the seat board, the avoiding groove corresponds to the locking block in position, and the locking block enters the avoiding groove and slides to the locking position.

Furthermore, the locking block is provided with a convex step part, when the backrest is opened relative to the seat plate, the step part is propped against the propping surface of the backrest interface seat, and when the backrest is folded relative to the seat plate, the step part enters the avoiding groove.

Furthermore, the seat pocket also has a second folding state, a third relative position is arranged between the seat plate interface seat and the seat pocket joint, the second locking mechanism also comprises a second locking groove arranged on the seat pocket joint, when the seat pocket is in the second folding state, the first locking mechanism is in an unlocking state, the backrest is folded relative to the seat plate, the abutting surface on the backrest interface seat is separated from the locking block, the seat plate interface seat and the seat pocket joint are in the third relative position, the locking block is driven by the elastic piece to slide to the locking position and is connected with the second locking groove, and the seat plate interface seat and the seat pocket joint are locked at the third relative position by the second locking mechanism.

Furthermore, an adjusting mechanism capable of adjusting the opening angle of the backrest relative to the seat plate when the seat pocket is in an opening state is arranged between the backrest and the seat plate, and the adjusting mechanism is arranged between the seat plate interface seat and the backrest interface seat; in the process of adjusting the relative opening angle between the backrest and the seat plate, the abutting surface and the locking block are kept in abutting and sliding contact.

Furthermore, the locking block is arranged at the rear part of the seat plate, and the sliding direction of the locking block is parallel to the rotating axis among the seat plate interface seat, the backrest interface seat and the seat pocket joint.

Furthermore, the locking block is provided with a first inclined surface which can be in sliding contact with the groove wall of the first locking groove, in the process that the seat pocket is transited from the first folding state to the opening state, the groove wall of the first locking groove is in sliding contact with the first inclined surface, and the groove wall of the first locking groove exerts a force opposite to that of the elastic piece on the first inclined surface.

Furthermore, two groups of second locking mechanisms are symmetrically arranged on the left side and the right side of the seat pocket.

The utility model also provides another kind of technical scheme: the utility model provides a children's shallow, is connected with foretell seat pocket on the frame including can opening and folding frame, and children's shallow has open mode and first folded state, and when it was in open mode, seat pocket and frame all were in respective open mode, and when children's shallow was in first folded state, the frame was in its fold condition, and the seat pocket was in its first folded state.

Furthermore, the seat pocket is in a first connection state of forward connection and a second connection state of reverse connection with the frame through the seat pocket connector, and when the child stroller is in a first folding state, the seat pocket is in the first connection state with the frame; the stroller further has a second folded state, and when the seat pocket and the frame are in the second connection state and the stroller is in the second folded state, the seat pocket is in the second folded state.

Since the technical scheme is used, the utility model discloses seat pocket and have children's shallow of this seat pocket, when the shallow was folded, the bedplate of seat pocket and the seat pocket connect between release the locking, thereby make the seat pocket whole can and the frame between rotate the regulation, and when folding the completion, through the locking between second locking mechanical system connects bedplate and seat pocket, even relative position locking between bedplate and the frame, thereby folding back seat pocket just can not rotate on the frame, make the shallow fold compacter, the volume is littleer, conveniently deposit and transport.

Drawings

Fig. 1 is a schematic view of a seat pocket in an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

FIG. 3 is a schematic structural view of the seat pocket in the embodiment shown in FIG. 1 in an opened state;

FIG. 4 is a schematic view of the cross-sectional structure A-A of FIG. 3;

FIG. 5 is a schematic view of the seat pocket of the embodiment shown in FIG. 1 in a folded state;

FIG. 6 is a schematic view of the cross-sectional structure B-B of FIG. 5;

fig. 7 is a schematic structural view of the stroller in an open state according to an embodiment of the present invention, wherein the seat pocket and the frame are in a first connection state;

fig. 8 is a schematic view of the stroller of fig. 7 in a first folded configuration;

FIG. 9 is a schematic structural view of the stroller shown in FIG. 7 in a first connection state between a seat pocket and a frame;

fig. 10 is a schematic view of the stroller of fig. 9 in a second folded configuration.

The reference numbers in the figures are:

1. a seat plate; 10. a seat plate interface seat; 2. a backrest; 20. a backrest interface mount; 21. an abutting surface; 22. an avoidance groove; 3. a seat pocket joint; 31. a first locking groove; 32. a second locking groove; 4. a locking block; 41. a step portion; 42. an end portion; 43. a first inclined plane; 44. a second inclined plane; 5. an elastic member; 6. a cover plate; 7. a frame; 71. an interface; 8. a rotating shaft.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, enables those skilled in the art to more readily understand the advantages and features of the present invention.

As can be seen from the schematic structural diagrams of fig. 1 to 10, the seat pocket in this embodiment includes a seat plate 1, a backrest 2 and a seat pocket joint 3 for connecting to a frame of the stroller, the seat plate 1 has a seat plate interface seat 10, the backrest 2 has a backrest interface seat 20, the seat plate interface seat 10, the backrest interface seat 20 and the seat pocket joint 3 are rotatably connected to each other through a same rotation axis, as shown in fig. 3 to 6, the seat plate interface seat 10, the backrest interface seat 20 and the seat pocket joint 3 are rotatably connected through a rotation shaft 8.

The seat plate interface seat 10 and the seat pocket joint 3 have a first locking mechanism capable of restricting them at a first relative position and a second locking mechanism capable of restricting them at a second relative position. The seat pocket at least has an opening state and a first folding state, when the seat pocket is in the opening state, the backrest 2 is opened relative to the seat plate 1, the seat plate interface seat 10 and the seat pocket connector 3 are in a first relative position, the first locking mechanism is in a locking state, and the second locking mechanism is in an unlocking state; when the seat pocket is in the first folding state, the backrest 2 is folded relative to the seat plate 1, the seat plate interface seat 10 and the seat pocket connector 3 are in the second relative position, the first locking mechanism is in the unlocking state, and the second locking mechanism is in the locking state.

When the seat bag is connected to the frame 7 of the stroller, the relative position between the seat bag joint 3 and the frame 7 does not change due to the change of the stroller state, and the first locking mechanism is used for locking the relative position between the seat plate 1 and the seat bag joint 3, namely the relative position between the seat plate 1 and the frame 7 when the seat bag is in the open state. The first locking mechanism is prior art and therefore its specific structure is not limited herein.

The second locking mechanism is used for locking the relative position between the seat plate 1 and the seat pocket joint 3, namely the relative position between the seat plate 1 and the frame 7 when the seat pocket is in the first folding state. As shown in fig. 1 to 6, the second locking mechanism includes a lock block 4 slidably disposed on the seat plate 1, an abutting surface 21 disposed on the backrest interface seat 20 and capable of being detachably abutted against the lock block 4, a first lock groove 31 disposed on the seat pocket connector 3, the lock block 4 having a locking position and an unlocking position, and an elastic member 5 disposed on the seat plate 1 and capable of sliding the lock block 4 from the unlocking position to the locking position, wherein the elastic member 5 is a compressed spring. Specifically, the locking piece 4 and the elastic member 5 are provided at the rear of the seat plate 1 and are restricted to the seat plate 1 by the cover plate 6. The sliding direction of the locking block 4 is parallel to the central line of the rotating shaft 8.

When the backrest 2 is opened relative to the seat plate 1, the abutting surface 21 on the backrest interface seat 20 abuts against the locking block 4, so that the locking block 4 is limited at the unlocking position, the locking block 4 and the first locking groove 31 are kept to be separated from each other, when the backrest 2 is folded relative to the seat plate 1 and the seat plate interface seat 10 and the seat pocket connector 3 are at the second relative position, the abutting surface 21 on the backrest interface seat 20 is separated from the locking block 4, and the locking block 4 is driven by the elastic piece 5 to slide to the locking position to be connected with the first locking groove 31. Specifically, as shown in fig. 3, the lock piece 4 is connected to the first lock groove 31 by an end portion 42 thereof.

In this embodiment, the backrest interface seat 20 is located between the seat plate interface seat 10 and the seat pocket joint 3, the backrest interface seat 20 is provided with an avoiding groove 22, when the backrest 2 is folded relative to the seat plate 1, the avoiding groove 22 corresponds to the lock block 4, and the lock block 4 enters the avoiding groove 22 and slides to the locking position.

The locking piece 4 has a protruding step 41, when the backrest 2 is opened relative to the seat plate 1, the step 41 abuts against the abutment surface 21 of the backrest interface seat 20, and when the backrest 2 is folded relative to the seat plate 1, the step 41 enters the avoiding groove 22, so as to lock the seat plate interface seat 10 and the backrest interface seat 20, that is, lock the backrest 2 in a folded position relative to the seat plate 1. Specifically, as shown in fig. 2, the step portion 41 protrudes upward, and does not go beyond the end portion 42 in the left-right direction.

In the embodiment shown in fig. 2, the end portion 42 of the lock block 4 has a first inclined surface 43, the step portion 41 has a second inclined surface 44, and when the seat pocket is opened, the backrest 2 is manually applied with force to rotate in a direction away from the seat plate 1, the backrest interface seat 20 rotates along with the force, and the groove wall of the escape groove 22 is in sliding contact with the second inclined surface 44, so that the lock block 4 is retracted against the force of the elastic member 5, and the second locking mechanism is unlocked. Meanwhile, in the whole cart opening process, the seat bag is manually applied with force, so that the seat plate 1 and the frame 7 rotate, namely the seat plate interface seat 10 and the seat bag connector 3 rotate, the groove wall of the first locking groove 31 is in sliding contact with the first inclined surface 43, the locking block 4 can also retreat by overcoming the force of the elastic piece 5, and the second locking mechanism is unlocked. The two unlocking modes complement each other.

In a more preferred embodiment, the second locking mechanism further comprises a second locking groove 32 disposed on the seat pocket connector 3, and accordingly, a third relative position is provided between the seat plate interface seat 10 and the seat pocket connector 3, and when the seat plate interface seat 10 and the seat pocket connector 3 are rotated to the third relative position after the first locking mechanism is unlocked, the locking piece 4 is connected with the second locking groove 32, so as to lock the seat plate interface seat 10 and the seat pocket connector 3 at the third relative position.

Correspondingly, the seat pocket also has a second folded state. Like the first folding state, when the seat pocket is in the second folding state, the first locking mechanism is also in the unlocking state, the backrest 2 is also folded relative to the seat plate 1, the abutting surface 21 on the backrest interface seat 20 is separated from the locking block 4, and the locking block 4 is driven by the elastic piece 5 to slide to the locking position; unlike the first folded state, when the seat pocket is in the second folded state, the seat panel interface seat 10 and the seat pocket connector 3 are in the third relative position, and the lock block 4 is connected to the second lock groove 32 after sliding to the lock position, that is, the second lock mechanism locks the seat panel interface seat 10 and the seat pocket connector 3 in the third relative position. The first and second folded states of the seat pocket are adapted to different connection states between the seat pocket and the frame 7, respectively, and in order to enable the stroller in different connection states to have a minimum volume after being folded, the relative position between the seat plate 1 of the seat pocket and the frame 7 in different connection states. The different connection states will be described in detail below.

When the seat pocket is opened in the second folded state, the unlocking principle of the second locking mechanism is substantially the same as that in the first folded state except that the groove wall of the second locking groove 32 is in sliding contact with the first inclined surface 43.

In the seat pocket in this embodiment, an adjusting mechanism capable of adjusting an opening angle of the backrest 2 relative to the seat plate 1 when the seat pocket is in an open state is provided between the backrest 2 and the seat plate 1, and the adjusting mechanism is disposed between the seat plate interface seat 10 and the backrest interface seat 20. During the adjustment of the backrest 2 to the relative opening angle of the seat plate 1, the abutment surface 21 is in sliding contact with the locking piece 4 and remains in abutment. The adjusting mechanism is the prior art, and the specific structure is not limited here.

The two groups of second locking mechanisms are symmetrically arranged on the left side and the right side of the seat pocket.

This embodiment still provides a children's shallow, including frame 7 that can open and fold, is connected with foretell seat pocket on the frame 7, and the seat pocket of seat pocket connects 3 and is connected with the interface 71 of frame 7. The specific structure of the frame 7 is not limited herein. The pushchair has an open state and a first folded state, when in the open state, the seat pocket and the frame 7 are both in their respective open states, and when the pushchair is in the first folded state, the frame 7 is in its folded state, the seat pocket is in its first folded state.

In a more preferred embodiment, the seat bag has a first connection state of a forward connection, i.e., the direction of the rear seat bag is forward (as shown in fig. 7), and a second connection state of a reverse connection, i.e., the direction of the rear seat bag is rearward (as shown in fig. 9), between the seat bag joint 3 and the vehicle frame 7. When the seat bag and the frame 7 are in a first connection state, the stroller is in a first folding state after being folded, as shown in the attached figure 8.

The stroller further has a second folded state, and when the seat pocket and the frame 7 are in the second connection state, the folded stroller is in the second folded state, and the seat pocket is in the second folded state, as shown in fig. 10.

The theory of operation of seat pocket and children's shallow in this embodiment:

when the seat bag and the frame 7 are in the first connection state as shown in figure 7, if the stroller needs to be folded, the frame 7 and the seat bag are respectively folded. When the seat pocket is folded, the first locking mechanism and the adjusting mechanism are unlocked, the backrest 2 is rotated forwards and downwards to be leaned against the seat plate 1, when the backrest 2 rotates to a corresponding position, the abutting surface 21 on the backrest interface seat 20 is separated from the locking block 4 on the joint seat plate 1, the avoidance groove 22 corresponds to the locking block 4 in position, the blocking of the abutting surface 21 is lost, the locking block 4 moves under the action of the elastic piece 5, and the step part 41 of the locking block 4 enters the avoidance groove 22, so that the seat plate 1 and the backrest 2 are locked; meanwhile, the seat plate 1 rotates relative to the seat pocket joint 3, when the seat plate 1 and the seat pocket joint 3 rotate to the second relative position, the first locking groove 31 on the seat pocket joint 3 corresponds to the position of the locking block 4, the step part 41 of the locking block 4 enters the avoiding groove 22, and meanwhile the locking block 4 is connected with the first locking groove 31, so that the seat plate 1 and the seat pocket joint 3 are locked, namely the seat plate 1 and the frame 7 are locked. The whole vehicle is folded as shown in figure 8.

When the seat bag and the frame 7 are in the second connection state as shown in the attached figure 9, if the cart needs to be folded, the frame 7 and the seat bag are respectively folded. When the seat pocket is folded, the first locking mechanism and the adjusting mechanism are unlocked, the backrest 2 is rotated backwards and downwards to be leaned against the seat plate 1, when the backrest 2 rotates to a corresponding position, the abutting surface 21 on the backrest interface seat 20 is separated from the locking block 4 on the connector seat plate 1, the avoidance groove 22 corresponds to the locking block 4 in position, the blocking of the abutting surface 21 is lost, the locking block 4 moves under the action of the elastic piece 5, and the step part 41 of the locking block 4 enters the avoidance groove 22, so that the seat plate 1 and the backrest 2 are locked; meanwhile, the seat plate 1 rotates relative to the seat pocket joint 3, when the seat plate 1 and the seat pocket joint 3 rotate to a third relative position, the second locking groove 32 on the seat pocket joint 3 corresponds to the position of the locking block 4, the step part 41 of the locking block 4 enters the avoiding groove 22, and meanwhile the locking block 4 is connected with the second locking groove 32, so that the seat plate 1 and the seat pocket joint 3 are locked, namely the seat plate 1 and the frame 7 are locked. The whole vehicle is folded as shown in the attached figure 10.

Seat pocket and have children's shallow of this seat pocket in the above-mentioned embodiment, when the shallow was folded, the bedplate of seat pocket and the seat pocket joint between relieve the locking, thereby make the seat pocket whole can with the frame between rotate the regulation, and when folding the completion, lock between bedplate and the seat pocket joint through second locking mechanical system, even relative position locking between bedplate and the frame, thereby folding back seat pocket just can not rotate on the frame, make the shallow fold compacter, the volume is littleer, conveniently deposit and transport.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a seat pocket, includes that bedplate (1), back (2) and be used for connecting the seat pocket joint (3) of children's shallow's frame, bedplate (1) has bedplate interface seat (10), back (2) have back interface seat (20), bedplate interface seat (10), back interface seat (20) and seat pocket joint (3) rotate the connection through same axis of rotation mutually, its characterized in that: a first locking mechanism which can limit the seat board interface seat (10) and the seat pocket connector (3) at a first relative position and a second locking mechanism which can limit the seat board interface seat and the seat pocket connector at a second relative position are arranged between the seat board interface seat and the seat pocket connector,

the seat pocket at least has an opening state and a first folding state, when the seat pocket is in the opening state, the backrest (2) is opened relative to the seat plate (1), the seat plate interface seat (10) and the seat pocket joint (3) are in a first relative position, the first locking mechanism is in a locking state, and the second locking mechanism is in an unlocking state; when the seat pocket is in a first folding state, the backrest (2) is opposite to the seat plate (1) and is folded, the seat plate interface seat (10) and the seat pocket joint (3) are in a second relative position, the first locking mechanism is in an unlocking state, and the second locking mechanism is in a locking state.

2. A seat pocket according to claim 1, characterized in that: the second locking mechanism comprises a locking block (4) arranged on the seat plate (1) in a sliding mode, an abutting surface (21) arranged on the backrest interface seat (20) and capable of being detachably abutted against the locking block (4), and a first locking groove (31) arranged on the seat pocket connector (3), wherein the locking block (4) is provided with a locking position and an unlocking position, the second locking mechanism further comprises an elastic piece (5) arranged on the seat plate (1) and capable of enabling the locking block (4) to slide from the unlocking position to the locking position, when the backrest (2) is opened relative to the seat plate (1), the abutting surface (21) on the backrest interface seat (20) is abutted against the locking block (4) to enable the locking block (4) to be limited at the unlocking position, and the locking block (4) and the first locking groove (31) are kept disengaged from each other, when the backrest (2) is folded relative to the seat plate (1) and the seat plate interface seat (10) and the seat pocket connector (3) are located at a second relative position, an abutting surface (21) on the backrest interface seat (20) is separated from the locking block (4), and the locking block (4) is driven by the elastic piece (5) to slide to the locking position and is connected with the first locking groove (31).

3. A seat pocket according to claim 2, characterized in that: the seat back type seat is characterized in that the back seat interface seat (20) is located between the seat plate interface seat (10) and the seat pocket connector (3), an avoiding groove (22) is formed in the back seat interface seat (20), when the back (2) is opposite to the seat plate (1) and is folded, the avoiding groove (22) corresponds to the position of the lock block (4), and the lock block (4) enters the avoiding groove (22) and slides to the locking position.

4. A seat pocket according to claim 3, characterized in that: the lock block (4) is provided with a convex step part (41), when the backrest (2) is opposite to the seat plate (1) and is opened, the step part (41) is propped against the propping surface (21) of the backrest interface seat (20), and when the backrest (2) is opposite to the seat plate (1) and is folded, the step part (41) enters the avoiding groove (22).

5. A seat pocket according to claim 2, characterized in that: the seat pocket is also provided with a second folding state, a third relative position is arranged between the seat plate interface seat (10) and the seat pocket joint (3), the second locking mechanism also comprises a second locking groove (32) arranged on the seat pocket joint (3), when the seat pocket is in the second folding state, the first locking mechanism is in the unlocking state, the backrest (2) is folded relative to the seat plate (1), the abutting surface (21) on the backrest interface seat (20) is separated from the locking block (4), the seat plate interface seat (10) and the seat pocket joint (3) are in the third relative position, the locking block (4) is driven by the elastic piece (5) to slide to the locking position to be connected with the second locking groove (32), the second locking mechanism locks the seat plate interface seat (10) and the seat pocket joint (3) at the third relative position.

6. A seat pocket according to claim 2, characterized in that: an adjusting mechanism capable of adjusting the opening angle of the backrest (2) relative to the seat plate (1) when the seat pocket is in an open state is arranged between the backrest (2) and the seat plate (1), and the adjusting mechanism is arranged between the seat plate interface seat (10) and the backrest interface seat (20); the abutting surface (21) and the locking block (4) are kept in abutting and sliding contact in the process that the backrest (2) adjusts the relative opening angle of the backrest and the seat plate (1).

7. A seat pocket according to claim 2, characterized in that: the lock block (4) is arranged at the rear part of the seat plate (1), and the sliding direction of the lock block (4) is parallel to the rotating axis among the seat plate interface seat (10), the backrest interface seat (20) and the seat pocket joint (3).

8. A seat pocket according to claim 2, characterized in that: the locking block (4) is provided with a first inclined surface (43) which can be in sliding contact with the groove wall of the first locking groove (31), in the process that the seat pocket is transited from a first folding state to an opening state, the groove wall of the first locking groove (31) is in sliding contact with the first inclined surface (43), and the groove wall of the first locking groove (31) exerts a force opposite to the elastic piece (5) on the first inclined surface (43).

9. A stroller, characterized in that: comprising an openable and foldable frame (7), said frame (7) being connected to a seat pocket according to any one of claims 1 to 8, said stroller having an open state and a first folded state, said seat pocket and said frame (7) being in their respective open states when said stroller is in said open state, said frame (7) being in its folded state when said stroller is in said first folded state, said seat pocket being in its first folded state.

10. The stroller of claim 9, wherein: the seat pocket is in a first connection state of forward connection and a second connection state of reverse connection between the seat pocket connector (3) and the frame (7), and when the stroller is in a first folding state, the seat pocket is in the first connection state with the frame (7); the stroller is further provided with a second folding state, and when the seat pocket and the frame (7) are in the second connection state and the stroller is in the second folding state, the seat pocket is in the second folding state.