CN112061218A - Children's barrow - Google Patents

Abstract

The invention relates to a children's stroller, comprising a stroller frame, a seat pocket, a front wheel assembly and a rear wheel assembly with unfolded and folded states; the stroller frame includes a front bracket, a rear bracket, a push rod frame, and a connecting rod. frame, and a linkage member movably arranged on the front bracket, rear bracket or push rod frame, the link frame connects the linkage member and one or more components other than the part in which the linkage member is provided in the cart frame; the seat The pocket interface assembly has a seat pocket interface portion and a connecting portion, and the seat pocket interface assembly is slidably arranged on the front bracket, the rear bracket or the push rod frame. When the cart frame is in the unfolded state, the seat pocket interface assembly is limited by the linking member ; When the frame of the cart is folded, the link piece moves to give way, the limit on the seat pocket interface assembly is released, and the seat pocket interface assembly can slide. The trolley seat pocket frame of the present invention can automatically slide down by its own gravity, the folding is more convenient and labor-saving, and the vehicle frame itself and the seat pocket frame can be locked relative to the vehicle frame through a locking mechanism.

Description

a children's stroller

technical field

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

Background technique

At present, strollers that include a frame and a seat are common. The frame usually includes a front bracket, a rear bracket, and a pushrod bracket. The saddle typically includes a saddle carrier. A seat pocket interface assembly is usually provided on the vehicle frame for connecting the seat pocket frame. For some carts, it is necessary to separate the seat pocket from the frame before the frame can be folded, and for some carts, the seat pocket and the frame can be folded as a whole without separating them. However, no matter what kind of stroller, after the frame of the stroller with seat pocket is folded, the seat pocket interface assembly usually protrudes from the rest of the frame, making the stroller folded irregular and/or bulky.

In addition, as far as the folding cart frame is concerned, factors to be considered include stability and comfort in the unfolded state, ease of folding operation, simplicity of the frame structure, and whether it is easy to carry and fashionable after being folded Wait. How to provide a cart product with high market recognition as a whole has always been the goal that practitioners in this field are constantly pursuing.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a new type of stroller for children.

In order to solve the above technical problems, a technical solution adopted by the present invention is: a child stroller, comprising a stroller frame having an unfolded state and a folded state, and a stroller frame for locking the stroller frame in the unfolded state. A locking mechanism, a seat pocket, a front wheel assembly, and a rear wheel assembly; the cart frame includes a front bracket provided with the front wheel assembly at the lower part, a rear bracket provided with the rear wheel assembly at the lower part, a push rod frame, a connecting A rod frame, and a linkage member movably arranged on one of the front brackets, the rear bracket, and the push rod frame, the linkage bracket connects the linkage member and the setting in the cart frame. One or more components other than the components of the linking piece; the frame of the cart is provided with a seat pocket interface assembly for connecting the seat pocket, and the seat pocket interface component has a seat pocket interface portion for connecting the seat pocket and a seat pocket interface portion for connecting the seat pocket. The connecting part of the cart frame is connected, and the seat pocket interface assembly can be slidably arranged on any part of the front bracket, the rear bracket, and the push rod frame. When the cart frame is in the unfolded state, the seat pocket interface assembly It is limited by the linkage; when the cart frame is folded, the linkage moves to give way, the limit on the seat pocket interface assembly is released, and the seat pocket interface assembly can slide.

Another technical solution adopted by the present invention is: a child stroller, comprising a stroller frame having an unfolded state and a folded state, a locking mechanism for locking the stroller frame in the unfolded state, a seat pocket, The front wheel assembly and the rear wheel assembly, the cart frame includes a front support with the front wheel assembly at the lower part, a rear support with the rear wheel assembly at the lower part, a push rod frame, and a connecting rod frame, which are movably arranged. A linkage on one of the front brackets, the rear bracket and the push rod frame, and the linkage frame connects the linkage with one or more of the parts in the cart frame without the linkage; push A seat pocket interface assembly for connecting the seat pocket is arranged on the frame of the vehicle, and the seat pocket interface assembly has a seat pocket interface portion for detachably connecting with the seat pocket and a connecting portion for connecting with the cart frame. The seat pocket interface assembly can be slidably arranged on any part of the front bracket, the rear bracket, and the push rod frame along the up-down direction. When the cart frame is in the unfolded state, the linkage is located on the sliding path of the seat pocket interface assembly. , so that the linkage cannot slide; when the cart frame is folded, the linkage moves to give way with the folding of the frame, and the seat pocket interface assembly slides down along its sliding path under its own gravity.

According to the present invention, preferably, the seat pocket includes a foldable seat pocket bracket, and the seat pocket bracket is rotatable relative to the seat pocket interface assembly. When the stroller is in a folded state, the seat pocket bracket is in a folded state. And relative to the frame of the stroller, the seat pocket interface assembly is located below the highest point of the folded stroller.

According to a preferred aspect of the present invention, when the stroller frame is in the unfolded state, the seat pocket interface portion of the seat pocket interface assembly protrudes from the rear bracket or the front bracket, and the connecting portion is limited to the linkage The frame cannot slide up and down between the parts and the frame at the connection between any two of the three parts: the rear bracket, the front bracket and the push rod frame.

Preferably, the linking member is slidably disposed on the component slidably provided with the seat pocket interface assembly, and the sliding direction of the linking member is consistent with the length extension direction of the component to which it is slidably connected.

Preferably, the linking member is located below the seat pocket interface assembly, and when the cart frame is in the unfolded state, the upper portion of the linking member abuts against the lower portion of the seat pocket interface assembly, When the cart frame is folded, the linkage slides away from the seat pocket interface assembly.

According to a specific aspect of the present invention, the front bracket, the rear bracket and the push rod bracket are relatively rotatably arranged, and one of the three components is provided with a link member and a seat pocket interface assembly at the same time, and the other two components A sliding member is provided on one of the sliding members, and the sliding direction of the sliding member is consistent with the length direction of the component to which it is slidably connected. And the components in the push rod frame that are not provided with the sliding piece and the linking piece are connected in rotation, and when the cart frame is folded, the sliding piece, the linking piece, and the seat pocket interface assembly slide, and the The front bracket, the rear bracket and the push rod bracket are relatively rotated and moved closer together.

According to a preferred aspect of the present invention, the linking member and the seat pocket interface assembly are arranged on the rear bracket, the sliding member is arranged on the front bracket, and the link bracket is connected to the rear bracket in sequence from front to rear. The sliding piece, the linking piece and the lower part of the push rod frame are rotatably connected, and when the cart frame is folded, the sliding piece, the linking piece and the seat pocket interface assembly slide down.

According to another preferred aspect of the present invention, the linking member and the seat pocket interface assembly are arranged on the front bracket, the sliding member is arranged on the rear bracket, and the link bracket is sequentially connected to the front bracket from front to rear. The connecting piece, the sliding piece and the lower part of the push rod frame are rotatably connected, and when the cart frame is folded, the sliding piece, the connecting piece and the seat pocket interface assembly slide down .

According to a specific aspect of the present invention, the connecting portion has opposite ends relatively far away, wherein the seat pocket interface portion is provided at one end of the connecting portion, and the other end of the connecting portion has a sleeve, the sleeve can slide It is arranged on the rear bracket or the front bracket, so as to realize the sliding connection with the front bracket or the rear bracket or the push rod frame.

According to a specific aspect of the present invention, the front bracket, the rear bracket, the push rod bracket and the link bracket are symmetrically arranged on the left and right sides of the cart, the upper end of the front bracket, the upper end of the rear bracket The upper end and the lower end of the push rod frame are rotatably connected through the connecting head and the rotating shaft. When the cart frame is in the unfolded state, the seat pocket interface assembly is linked by the connecting head and the The piece limit cannot be slid up or down.

Further preferably, the connecting head is fixedly connected with the upper end of the rear bracket and is transverse to the rear bracket, and the upper end of the front bracket and the lower end of the push rod frame are respectively connected with the front and rear of the connecting head. The ends are rotatably connected by a rotating shaft; when the cart frame is in the unfolded state, the rotation axis between the front bracket, the rear bracket and the push rod bracket, the link bracket and the sliding member, the connecting The rotation axis between the moving parts, and the rotation axis between the link frame and the front bracket, the rear bracket and the push rod frame without the sliding member and the linking member are respectively along the rotation axis. The left and right directions of the cart extend horizontally. Further preferably, a triangular structure is formed between the front bracket, the rear bracket and the link bracket on each side, and another triangular structure is formed between the rear bracket, the link bracket and the push rod bracket, and the The two triangular structures together form a triangular structure. In this configuration, the cart frame in the unfolded state is very stable.

According to a preferred aspect of the present invention, the connecting rod frame includes a laterally extending section and a longitudinally extending section extending rearwardly and upwardly from a rear end of the laterally extending section, and the front end of the laterally extending section is connected to the The sliding piece or the linking piece on the front bracket is connected, and the junction of the lateral extension section and the longitudinal extension section is rotatably connected with the linking piece or the sliding piece arranged on the rear bracket, so The upper end of the longitudinally extending section is rotatably connected with the lower part of the push rod frame.

According to the present invention, preferably, when the stroller frame is in a folded state, the seat pocket interface assembly is below the highest point of the folded stroller frame. In this way, the folded cart frame can be made more regular and smaller.

According to a specific and preferred embodiment of the present invention, the connecting rod frame is a rod.

According to another specific and preferred embodiment of the present invention, the linking member and the sliding member are respectively sliding sleeves, and are correspondingly sleeved on the corresponding components such as the front bracket or the rear bracket.

According to the present invention, the locking mechanism is not particularly limited, and can be set in a conventional setting manner in the art.

According to a specific embodiment of the present invention, the locking mechanism includes a locking slot provided on the linking member and/or the sliding member, retractable and retractable on the front bracket and/or the rear bracket and connected with all the The locking tongue matched with the locking groove on the linking member and/or the sliding member, the locking tongue can be fitted into the locking groove to achieve locking.

According to a specific and preferred embodiment of the present invention, the locking groove is formed on the linking member, and the locking tongue is telescopically arranged on the front bracket or the rear bracket.

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

The stroller of the present invention effectively solves the problem of the protruding seat pocket interface assembly or the height of the seat pocket frame after being folded, so that the folded frame is more regular and the height is reduced. At the same time, with this structure, the seat pocket frame can automatically slide down by its own gravity, which is more convenient and labor-saving to fold, and the frame itself and the seat pocket frame can be locked relative to the frame only through a locking mechanism. On the premise of keeping the cart with excellent stability and small folding volume, the structure is more concise and the operation is more convenient.

Description of drawings

Fig. 1 is the exploded plan view of the stroller in the embodiment 1 of the present invention in the unfolded state;

Figure 2 is a perspective exploded view of the stroller in Embodiment 1 of the present invention in an unfolded state;

3 is a schematic side view of the stroller in the unfolded state according to Embodiment 1 of the present invention;

4 is a schematic three-dimensional structure diagram of the stroller in the embodiment 1 of the present invention in an unfolded state;

5 is a schematic diagram of the process of changing the stroller from the unfolded state to the folded state in Embodiment 1 of the present invention;

6 is a schematic structural diagram of the stroller in Embodiment 2 of the present invention in an unfolded state;

FIG. 7 is a schematic structural diagram of the stroller in the folded state according to the second embodiment of the present invention.

In the figure: 1, locking mechanism; 1a, lock slot; 1b, lock tongue; 2, seat pocket; 3, front wheel assembly; 4, rear wheel assembly; 5, front bracket; 6, rear bracket; 6a, main rear bracket Rod; 6b, connector; 7, push rod frame; 8, seat pocket interface assembly; 8a, seat pocket interface; 8b, connection part; 8b1, first connection part; 8b2, second connection part; 8c, sleeve 9. Linkage; 10. Slider; 11. Link frame; 11a, transverse extension; 11b, longitudinal extension; 12, shaft.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments of the description:

The invention relates to the improvement of the children's stroller, and the improved children's stroller effectively solves the problem of the protruding seat pocket interface assembly or the height of the seat pocket frame after folding, and makes the folded vehicle frame more regular and lower in height. At the same time, with this structure, the seat pocket frame can automatically slide down by its own gravity, and the folding is more convenient and labor-saving; moreover, the frame itself and the seat pocket frame can be locked relative to the frame only through a locking mechanism. On the premise of keeping the cart with excellent stability and small folding volume, the structure is more concise and the operation is more convenient. In addition, by further combining the improvement of the frame structure, the structure is more novel on the premise of keeping the cart with excellent stability and small folded volume.

Example 1

As shown in Figures 1-5, a stroller is shown, comprising a stroller frame having an unfolded state and a folded state, a locking mechanism 1 for locking the stroller frame in the unfolded state, and a seat pocket 2. Front wheel assembly 3, rear wheel assembly 4, the cart frame includes a front bracket 5 with a front wheel assembly 3 at the bottom, a rear support 6 with a rear wheel assembly 4 at the bottom, and a push rod frame 7, the cart frame There is a seat pocket interface assembly 8 for connecting the seat pocket 2, the seat pocket interface assembly 8 has a seat pocket interface portion 8a for connecting the seat pocket 2, a connecting portion 8b for connecting with the cart frame, the front bracket 5 , the rear bracket 6 and the push rod frame 7 are relatively rotatably arranged, and the seat pocket interface assembly 8 is slidably arranged on the rear bracket 6 . Wherein, the length extending direction of the seat pocket interface assembly 8 and the length extending direction of the rear bracket 6 are the same.

In addition, a link member 9 for preventing the sliding of the seat pocket interface assembly 8 is also movably provided on the cart frame, and the link member 9 is also slidably arranged on the rear bracket 6 and is located at the seat pocket interface assembly 8 Below the location, it is located on the sliding path of the seat pocket interface assembly 8 . Further, the connecting portion 8b of the seat pocket interface assembly 8 has opposite ends in the longitudinal direction thereof, the seat pocket interface portion 8a is located at one end portion of the connecting portion 8b, and the other end portion of the connecting portion 8b has a connection for connecting with the rear bracket. 6. The sleeve 8c is slidably connected. When the cart frame is in the unfolded state, one end of the connecting portion 8b and the seat pocket interface portion 8a protrude out of the rear bracket 6, which is convenient for connecting the seat pocket 2. The sleeve 8c is sleeved on the rod body of the rear bracket 6 and the lower end is in conflict with the linkage 9, and the upper end is restricted by the top of the rear bracket 6. In this way, in the unfolded state, the connecting portion 8b is restricted between the linkage 9 and the rear. The brackets 6 cannot slide up and down; when the cart frame is folded, the linkage 9 moves to give way to release the limit on the connecting portion 8b. At this time, the seat pocket interface assembly 8 is under the action of its own gravity. That is, it can slide down along its sliding path, that is, along the lengthwise extending direction of the rear bracket 6 .

When the cart frame is in the folded state, as shown in FIG. 5 , the seat pocket interface assembly 8 is below the highest point of the folded cart frame. In this way, the folded cart frame can be made more regular and smaller.

Further, the stroller frame also includes a sliding member 10 and a link frame 11 slidably arranged on the front bracket 5, and the sliding directions of the linking member 9, the seat pocket interface assembly 8, and the sliding member 10 are respectively slid by them. In the extension direction of the length of the connecting part, the link frame 11 is rotatably connected with the slider 10, the link member 9 and the push rod frame 7 respectively. When the cart frame is folded, the slider 10 and the link member 9 slide down, and the front The bracket 5 , the rear bracket 6 and the push rod bracket 7 are relatively rotated and moved closer together.

In this example, the linking member 9 , the sliding member 10 and the sleeve 8c are respectively sliding sleeves, and are respectively sleeved on the rear bracket 6 , the front bracket 5 and the rear bracket 6 . Of course, the linking member 9, the sliding member 10 and the sleeve 8c are not limited to the sliding sleeve form, and other structures may be adopted.

Further, the link frame 11 is a rod, and specifically includes a laterally extending section 11a and a longitudinally extending section 11b extending backward and upward from the rear end of the laterally extending section 11a. 5 is connected to the sliding member 10, the junction of the laterally extending section 11a and the longitudinally extending section 11b is rotatably connected to the linkage 9 provided on the rear bracket 6, and the upper end of the longitudinally extending section 11b is rotated with the lower part of the push rod frame 7. connect.

Further, the rear bracket 6 includes a rear bracket main rod 6a and a connector 6b located at the upper end of the rear bracket main rod 6a and transverse to the rear bracket main rod 6a. The upper end of the front bracket 5 and the lower end of the push rod frame 7 are respectively The front and rear ends of the connector 6b are rotatably connected, and a linkage 9 is slidably arranged on the main rod 6a of the rear bracket. When the cart is in the unfolded state, the upper end of the sleeve 8c on the connecting portion 8b of the seat pocket interface assembly 8 is connected. The head 6b is limited so that the seat pocket interface assembly 8 cannot slide upward.

As shown in FIG. 2 and FIG. 4 , the front bracket 5 , the rear bracket 6 , the push rod bracket 7 and the link bracket 11 are symmetrically arranged on the left and right sides of the cart. The upper end of the front bracket 5 and the lower end of the push rod bracket 7 They are respectively connected with the upper end of the rear bracket 6 through the rotating shaft 12 in rotation. When the cart frame is in the unfolded state, the rotation axis between the front bracket 5 , the rear bracket 6 , and the push rod frame 7 , and the rotation axis between the link frame 11 , the sliding member 10 , the link member 9 and the push rod frame 7 The rotation axes extend horizontally along the left and right directions of the cart, respectively.

When the cart frame is in the unfolded state, the upper part of the front bracket 5 on each side, the connecting head 6b and the lower part of the push rod bracket 7 extend in the same direction, and the laterally extending section 11a, the upper part of the rear bracket 6, the front bracket 5 The first triangular structure is formed between the upper parts of the vertical extension section 11b, the upper part of the rear bracket 6, and the lower part of the push rod bracket 7; the link bracket 11 is integral, the upper part of the front bracket 5, the rear bracket 6 The connecting head 6b and the lower part of the push rod frame 7 form a third triangular structure. Under this structure, the cart frame in the unfolded state not only has good stability, but also has a novel and fashionable structure.

According to the present invention, the locking mechanism 1 for locking the vehicle frame in the deployed state can be set in a conventional locking mechanism setting manner in the art, and there is no particular limitation. In this example, the locking mechanism 1 is provided between the link 9 and the rear bracket 6 . More specifically, as shown in FIGS. 1-5 , the locking mechanism 1 includes a lock slot 1a provided on the link member 9, and a retractable lock tongue 1b arranged on the upper part of the rear bracket 6, and the lock tongue 1b is inserted into the lock through the lock tongue 1b. A limit is formed in the groove 1a and the linkage 9 is formed to realize the locking of the cart frame. When folding the cart frame, press the lock tongue 1b, so that the lock tongue 1b is separated from the lock slot 1a, and the cart frame is unlocked; The tongue 1b is inserted into the lock groove 1a to lock the cart frame in the unfolded state.

Further, the seat pocket 2 includes a foldable seat pocket bracket, and the seat pocket bracket is rotatable relative to the seat pocket interface assembly 8. When the stroller is in a folded state, the seat pocket bracket is in a folded state and is relative to the stroller frame. Rotate closer.

In the cart of this embodiment, when folded, firstly rotate the seat pocket frame to make it in a folded state, then press the lock tongue 1b to make the lock tongue 1b separate from the lock groove 1a, and then press down the push rod frame 7, the push rod frame 7 It rotates and moves closer to the rear bracket 6 and drives the linking member 9 to slide downward, and then the seat pocket interface assembly 8 can slide down under the action of its own gravity to move closer to the rear bracket 6, and the linking member 9 drives the sliding member 10 to slide down. , the front bracket 5 and the rear bracket 6 are rotated relative to each other under the action of the link bracket 11, and finally the push rod bracket 7, the front bracket 5 and the rear bracket 6 are retracted, so that the cart frame is kept in a folded state, which can be seen at this time. The seat pocket interface assembly 8 is generally below the highest point of the folding frame, and is relatively regular as a whole.

When unfolding, the push rod frame 7 is lifted upward, the push rod frame 7 and the rear support 6 are relatively rotated and separated and drive the linking member 9 to slide upward, the linking member 9 drives the sliding member 10 to slide upward, and the front support 5 and the rear support 6 are connected. Under the action of the rod frame 11, the relative rotation and separation are separated. When the linkage 9 slides up to the lock tongue 1b, the lock tongue 1b is inserted into the lock groove 1a, and the cart frame can be locked in the unfolded state, and then the seat pocket frame can be opened. ride.

Example 2

This embodiment provides another stroller, as shown in Figures 6-7, the main structure of the frame is basically the same as that of the first embodiment, and the main difference from the first embodiment is that the seat pocket interface assembly 8 is slidably arranged on the On the front bracket 5 , the link member 9 is also slidably arranged on the front bracket 5 and its position is below the position of the seat pocket interface assembly 8 , and the sliding member 10 is slidably arranged on the rear bracket 6 .

Further, the connection part 8b of the seat pocket interface assembly 8 includes a first connection part 8b1 and a second connection part 8b2, the length extension direction of the first connection part 8b1 is consistent with the length extension direction of the front bracket 5, and the first connection part 8b1 is in the It has opposite ends in the longitudinal direction, the second connecting portion 8b2 is located at one end of the first connecting portion 8b1, and the seat pocket interface portion 8a is located at one end of the second connecting portion 8b2 away from the first connecting portion 8b1. When the stroller frame is in the unfolded state, the length extension direction of the second connection portion 8b2 is consistent with the length extension direction of the rear bracket 6, the seat pocket interface portion 8a and the second connection portion 8b2 protrude from the front bracket 5, and the connection portion 8b is The linking member 9 is limited by the connecting head 6b, so that the seat pocket interface assembly 8 cannot slide up and down; when the cart frame is in the folded state, the linking member 9 is separated from the other end of the first connecting portion 8b1, and the seat pocket The interface assembly 8 can slide downward along its sliding path, that is, along the lengthwise extending direction of the front bracket 5 under the action of its own gravity.

In this example, the locking mechanism 1 is provided between the slider 10 and the rear bracket 6 . More specifically, as shown in FIG. 6 , the locking mechanism 1 includes a lock slot 1a provided on the sliding member 10, a retractable lock tongue 1b arranged on the upper part of the rear bracket 6, and the lock tongue 1b is inserted into the lock slot 1a through the lock tongue 1b. A limit is formed for the sliding member 10 to realize the locking of the cart frame. When folding the cart frame, press the lock tongue 1b to make the lock tongue 1b disengage from the lock slot 1a, and the cart frame is unlocked; when unfolding the cart frame, the slider 10 slides up to the lock tongue 1b, and the lock tongue 1b is inserted into the lock slot 1a to lock the cart frame in the unfolded state.

In the cart of this embodiment, when folded, firstly rotate the seat pocket frame to make it in a folded state, then press the lock tongue 1b to make the lock tongue 1b separate from the lock groove 1a, and then press down the push rod frame 7, the push rod frame 7 It rotates and moves closer to the rear bracket 6 and drives the sliding member 10 to slide down. The bracket 5 and the rear bracket 6 are relatively rotated and moved closer to each other under the action of the link frame 11, and finally the push rod frame 7, the front bracket 5 and the rear bracket 6 are folded together, so that the cart frame is kept in a folded state, and the seat pocket can be seen at this time. The interface assembly 8 is generally below the highest point of the folding frame, and is relatively regular as a whole;

When unfolding, lift the push rod frame 7 upward, the push rod frame 7 and the rear support 6 rotate and separate relative to each other and drive the sliding member 10 to slide upward, the sliding member 10 drives the linking member 9 to slide upward, and the front support 5 and the rear support 6 are in the connecting rod. The frame 11 is relatively rotated and separated. When the slider 10 slides up to the lock tongue 1b, the lock tongue 1b is inserted into the lock groove 1a, and the stroller frame can be locked in the unfolded state, and then the seat pocket frame can be opened to ride.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and their purpose is to enable those who are familiar with the art to understand the content of the present invention and implement them accordingly, and cannot limit the scope of protection of the present invention with this. Equivalent changes or modifications made in the spirit and spirit should all be included within the protection scope of the present invention.

Claims (10)

1. A stroller, comprising a stroller frame having an unfolded state and a folded state, a locking mechanism (1) for locking the stroller frame in the unfolded state, a seat pocket (2), a front wheel an assembly (3), a rear wheel assembly (4); the cart frame includes a front bracket (5) provided with the front wheel assembly (3) at the lower part, and a rear bracket (5) provided with the rear wheel assembly (4) at the lower part A bracket (6), a push rod frame (7), a connecting rod frame (11), and a component movably arranged on one of the front support (5), the rear support (6), and the push rod frame (7) A link (9), the link frame (11) connects the link (9) with one or more components other than the component on which the link (9) is provided in the cart frame a seat pocket interface assembly (8) for connecting the seat pocket (2) is provided on the cart frame, and the seat pocket interface assembly (8) has a seat pocket for connecting the seat pocket (2) The interface part (8a) and the connecting part (8b) connected with the frame of the cart are characterized in that: the seat pocket interface assembly (8) is slidably arranged on the front bracket (5) and the rear bracket ( 6) On any part of the push rod frame (7), when the cart frame is in the unfolded state, the seat pocket interface assembly (8) is limited by the linkage (9); When the trolley frame is folded, the linking member (9) moves to give way, the limit on the seat pocket interface assembly (8) is released, and the seat pocket interface assembly (8) can slide. 2. A stroller, comprising a stroller frame having an unfolded state and a folded state, a locking mechanism (1) for locking the stroller frame in the unfolded state, a seat pocket (2), a front wheel assembly (3), rear wheel assembly (4); the cart frame includes: a front bracket (5) provided with the front wheel assembly (3) at the lower part, A rear bracket (6), a push rod bracket (7), and a connecting rod bracket (11) are movably arranged on one of the front bracket (5), the rear bracket (6), and the push rod bracket (7). A linking member (9), the linking member (11) connects the linking member (9) with one or more of the components in the frame of the cart that are not provided with the linking member (9) A seat pocket interface assembly (8) for connecting the seat pocket (2) is provided on the cart frame, and the seat pocket interface assembly (8) has a seat pocket (2) for connecting with the seat pocket (2). A seat pocket interface portion (8a) that is detachably connected and a connecting portion (8b) connected to a cart frame, characterized in that the seat pocket interface assembly (8) is slidably disposed on the On any part of the front bracket (5), the rear bracket (6), and the push rod frame (7), when the cart frame is in the unfolded state, the linkage (9) is located in the seat On the sliding path of the pocket interface assembly (8), the linkage member (9) cannot slide; when the cart frame is folded, the linkage member (9) moves to give way with the folding of the frame , the seat pocket interface assembly (8) slides down along its sliding path under the action of its own gravity. 3. The stroller according to claim 1 or 2, wherein the seat pocket (2) comprises a foldable seat pocket bracket, and the seat pocket bracket is opposite to the seat pocket interface assembly (8). ) can be rotated, when the stroller is in the folded state, the seat pocket frame is in the folded state and rotates close to the stroller frame, and the seat pocket interface assembly (8) is in the folded state below the highest point of the cart. 4. The stroller according to claim 1 or 2, characterized in that: when the stroller frame is in the unfolded state, the seat pocket interface portion (8a) of the seat pocket interface assembly (8) protrudes out of the In the rear bracket (6) or the front bracket (5), the connecting part (8b) is limited between the linkage (9) and the rear bracket (6), the front bracket (5), and the push rod frame (7) The frame at the joint of any two of the three parts cannot slide up and down. 5. The stroller according to claim 1 or 2, characterized in that: the linkage (9) is slidably arranged on the component slidingly provided with the seat pocket interface assembly (8), and the The sliding direction of the linking piece (9) is consistent with the lengthwise extending direction of the component to which it is slidably connected. 6. The stroller according to claim 5, characterized in that: the linkage (9) is located below the seat pocket interface assembly (8), when the stroller frame is in an unfolded state , the upper part of the linking piece (9) abuts against the lower part of the seat pocket interface assembly (8), when the cart frame is folded, the linking piece (9) slides away from the seat Pocket interface assembly (8). 7. The stroller according to claim 5, characterized in that: the front bracket (5), the rear bracket (6) and the push rod bracket (7) are relatively rotatably arranged and one of the three components is The connecting piece (9) and the seat pocket interface assembly (8) are simultaneously arranged on the upper part, and a sliding piece (10) is arranged on one of the other two components, and the sliding direction of the sliding piece (10) is the same as the sliding direction of the sliding piece (10). The length directions of the components to be slidably connected are the same, and the connecting rod bracket (11) is respectively connected with the sliding member (10), the linking member (9), the front bracket (5), the rear bracket (6) and the pusher (9). The rod frame (7) is not provided with the sliding member (10) and the linking member (9) which are rotatably connected, and when the cart frame is folded, the sliding member (10) and the linking member (9) ), the seat pocket interface assembly (8) slides, and the front bracket (5), the rear bracket (6), and the push rod frame (7) rotate relatively close to each other. 8. The stroller according to claim 7, characterized in that: the linking member (9) and the seat pocket interface assembly (8) are arranged on the rear bracket (6), and the sliding member ( 10) Set on the front bracket (5), the connecting rod frame (11) is connected with the sliding member (10), the link member (9) and the push rod frame (11) in sequence from front to back. 7) The lower part is connected in rotation, when the cart frame is folded, the sliding member (10), the linking member (9), and the seat pocket interface assembly (8) slide down; or, The linking member (9) and the seat pocket interface assembly (8) are arranged on the front bracket (5), the sliding member (10) is arranged on the rear bracket (6), and the connecting rod The frame (11) is rotatably connected with the linkage member (9), the sliding member (10) and the lower part of the push rod frame (7) in sequence from front to back. When the cart frame is folded, the The sliding member (10), the linking member (9), and the seat pocket interface assembly (8) slide down. 9 . The stroller according to claim 7 , wherein the front bracket ( 5 ), the rear bracket ( 6 ), the push rod frame ( 7 ) and the link frame ( 11 ) are in the push rod frame ( 11 ). 10 . The left and right sides of the vehicle are symmetrically arranged, and the upper end of the front bracket (5), the upper end of the rear bracket (6), and the lower end of the push rod frame (7) pass through the connector (6b) It is rotatably connected with the rotating shaft, and when the cart frame is in the unfolded state, the seat pocket interface assembly (8) is restricted from sliding up and down by the connecting head (6b) and the linking piece (9). 10. The stroller according to claim 9, wherein the connecting head (6b) is fixedly connected to the upper end of the rear bracket (6) and is transverse to the rear bracket (6), the The upper end of the front bracket (5) and the lower end of the push rod frame (7) are respectively connected with the front and rear ends of the connecting head (6b) by rotating shafts; when the cart frame is in the unfolded state, all the The rotation axis between the front bracket (5), the rear bracket (6), and the push rod bracket (7), the link bracket (11), the sliding member (10), the linking member (9) ), and the connecting rod frame (11) and the front frame (5), the rear frame (6) and the push rod frame (7) are not provided with the sliding member (10) and the connecting The rotation axes between the parts of the moving element (9) extend horizontally along the left and right directions of the cart, respectively, and the front bracket (5), the rear bracket (6), and the link bracket (11) on each side A triangular structure is formed between them, another triangular structure is formed between the rear bracket (6), the link frame (11) and the push rod frame, and the two triangular structures together form a triangular structure.

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