CN220535730U - Seat pocket mechanism and baby stroller - Google Patents

Abstract

The utility model belongs to the technical field of child carriers, and discloses a seat pocket mechanism and a baby stroller. The seat pocket mechanism includes a seat pan assembly, a back bar assembly, a armrest assembly, a first locking structure, and a second locking structure. The backrest rod assembly is rotationally connected with the seat plate assembly; the armrest assembly is rotationally connected with the seat board assembly, and the armrest assembly, the backrest rod assembly and the seat board assembly are coaxially connected; the first locking structure is used for locking the backrest rod assembly and the armrest assembly; the second locking structure is used for locking the armrest assembly and the seat plate assembly; the backrest rod assembly is provided with an unlocking piece which is in transmission connection with the first locking structure so as to unlock the first locking structure; the backrest rod assembly is in transmission connection with the second locking structure, and when the backrest rod assembly in an unlocking state rotates to a preset position, the backrest rod assembly can unlock the second locking structure. The seat pocket mechanism sequentially realizes unlocking of the first locking structure and the second locking structure through the backrest rod assembly so as to fold, and is convenient to operate, store and carry.

Description

Seat pocket mechanism and baby stroller

Technical Field

The utility model relates to the technical field of child carriers, in particular to a seat pocket mechanism and a baby stroller.

Background

The baby stroller is a tool trolley which is designed for facilitating the outdoor activities of babies, has the advantages of small size, portability, simple operation and convenient turning, and is used by wide users.

Infant carts typically include a cart frame and a seat pocket mechanism disposed within the cart frame. At present, most infant carts have a folding function, but most seat pocket mechanisms cannot be folded.

When the infant handcart is folded, the seat pocket mechanism is often required to be detached for being independently placed, and then the frame of the infant handcart is folded, so that the infant handcart with the structure brings great inconvenience to a user in operation and storage. Even if a part of the frame of the infant handcart can be folded together with the seat pocket mechanism, the seat pocket mechanism has complex structure, high manufacturing cost and complex operation, and meanwhile, the folded infant handcart has larger whole volume and large occupied space, and is also unfavorable for carrying and storing.

Therefore, a seat pocket mechanism and a stroller are needed to solve the above-mentioned problems.

Disclosure of Invention

The seat pocket mechanism is capable of being folded, simple in structure, convenient to operate, small in occupied space after being folded and convenient to store and carry.

To achieve the purpose, the utility model adopts the following technical scheme:

seat pocket mechanism includes:

a seat plate assembly;

the backrest rod assembly is rotationally connected with the seat plate assembly;

the armrest assembly is rotationally connected with the seat board assembly, and the armrest assembly, the backrest rod assembly and the seat board assembly are coaxially connected;

a first locking structure for locking the backrest bar assembly and the armrest assembly;

a second locking structure for locking the armrest assembly and the seat pan assembly;

the backrest rod assembly is provided with an unlocking piece, and the unlocking piece is in transmission connection with the first locking structure so as to unlock the first locking structure; the backrest rod assembly is in transmission connection with the second locking structure, and when the backrest rod assembly in an unlocking state rotates to a preset position, the backrest rod assembly can unlock the second locking structure.

As an alternative scheme of the seat pocket mechanism provided by the utility model, a first cover body is arranged on the backrest rod assembly, and a lock tongue avoiding groove is formed in the side wall of the first cover body;

the armrest assembly is provided with a second cover body, the second cover body is coaxially connected with the first cover body, and the second cover body is provided with a lock tongue inserting groove;

the first locking structure comprises a first lock tongue and a first elastic piece which are both arranged on the backrest rod assembly;

the first elastic piece can apply pressure towards the rotation axis of the first cover body to the first lock tongue, and when the lock tongue avoiding groove is aligned with the lock tongue inserting groove, the first lock tongue is driven to penetrate through the lock tongue avoiding groove and then is inserted into the lock tongue inserting groove.

As an alternative scheme of the seat pocket mechanism provided by the utility model, the unlocking piece is in transmission connection with the first lock tongue and is used for driving the first lock tongue to withdraw from the lock tongue insertion groove.

As an alternative scheme of the seat pocket mechanism provided by the utility model, the first cover body is further provided with the first limiting part, the second cover body is provided with the first limiting boss, and when the first cover body and the second cover body can relatively rotate, the first limiting boss is in sliding fit with the first limiting part.

As an alternative scheme of the seat pocket mechanism provided by the utility model, a third cover body is arranged on the seat board assembly, and the second locking structure comprises a locking tooth block and a second elastic piece;

the locking tooth block, the second elastic piece, the third cover body and the second cover body are coaxially arranged, a locking tooth accommodating groove is formed in the third cover body, the locking tooth block is arranged in the locking tooth accommodating groove, and the second elastic piece is clamped between the locking tooth block and the third cover body;

the second cover body is also provided with a locking tooth slot, and the second elastic piece can partially press the locking tooth block into the locking tooth slot.

As an alternative scheme of the seat pocket mechanism, the seat pocket mechanism further comprises a linkage ejector block, wherein the linkage ejector block and the second cover body are coaxially arranged and clamped between the second cover body and the locking tooth block;

the linkage ejector block is provided with an ejector block boss, an ejector block avoiding groove is formed in the position, corresponding to the ejector block boss, of the second cover body, the ejector block boss penetrates through the ejector block avoiding groove, and a first inclined surface capable of being matched with the ejector block boss is arranged on the first cover body;

and the first cover body is rotated, the first inclined surface is in sliding fit with the boss of the ejector block, and the locking tooth block can be pushed out of the locking tooth slot.

As an alternative scheme of the seat pocket mechanism provided by the utility model, the second cover body is also provided with a second limiting boss, the third cover body is provided with a second limiting part, and when the second cover body and the third cover body can relatively rotate, the second limiting boss is in sliding fit with the second limiting part.

As an alternative to the seat pocket mechanism provided by the utility model, the seat pocket mechanism further comprises a pedal assembly, wherein the pedal assembly is rotatably connected with the seat plate assembly.

As an alternative to the seat pocket mechanism provided by the utility model, the seat pocket mechanism further comprises a front awning rod assembly, wherein the front awning rod assembly is rotatably connected with the backrest rod assembly.

Another object of the present utility model is to provide a stroller, in which the seat pocket mechanism can be folded together with the stroller frame, so that the stroller has a simple overall structure, is convenient to operate, occupies a small space after being folded, and is convenient to store, carry and transport.

To achieve the purpose, the utility model adopts the following technical scheme:

the baby stroller comprises a stroller frame and the seat pocket mechanism, wherein the seat pocket mechanism is arranged on the stroller frame.

The utility model has the beneficial effects that:

the seat pocket mechanism provided by the utility model comprises a seat plate assembly, a backrest rod assembly, an armrest assembly, a first locking structure and a second locking structure. The backrest rod assembly and the seat board assembly are coaxially connected, and the backrest rod assembly and the seat board assembly are both rotationally connected with the seat board assembly; the second locking structure can lock the armrest assembly and the seat plate assembly to enable the armrest assembly and the seat plate assembly to be positioned and locked. Be provided with the release piece on the back pole subassembly, the release piece is connected with first locking structure transmission, and the release piece can unlock first locking structure, makes back pole subassembly can rotate for the handrail subassembly. The backrest rod assembly is in transmission connection with the second locking structure, and when the backrest rod assembly in an unlocking state rotates to a preset position, the backrest rod assembly can unlock the second locking structure, so that the armrest assembly and the seat plate assembly are unlocked. That is, through back pole subassembly, can unlock first locking structure and second locking structure in proper order, and then realize that the rotation of back pole subassembly, handrail subassembly and bedplate subassembly is folding, and then accomplish the folding of seat pocket mechanism, easy and simple to handle, and occupation space after folding is little, is convenient for deposit and carry.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic view of a seat pocket mechanism according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a seat pocket mechanism according to an embodiment of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an exploded view of a seat pocket mechanism according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a portion of a seat pocket mechanism according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a seat pocket mechanism according to an embodiment of the present utility model;

fig. 7 is a second schematic structural view of a seat pocket mechanism according to the second embodiment of the present utility model.

In the figure:

1. a seat plate assembly; 11. a third cover; 111. locking the tooth accommodating groove; 112. a second limit part; 12. the seat board is connected with a pin;

2. a backrest rod assembly; 21. a first cover; 211. the lock tongue dodges the groove; 212. a first limit part; 213. a first inclined surface; 22. an unlocking member; 221. a handle; 222. a traction cable; 223. the handle is connected with the pin;

3. a handrail assembly; 31. a second cover; 311. the bolt is inserted into the groove; 312. the first limiting boss; 313. locking the tooth slot; 314. the ejector block avoids the groove; 315. the second limiting boss; 32. a grab rail;

41. a first tongue; 42. a first elastic member;

51. locking the tooth block; 52. a second elastic member; 53. a linkage ejector block; 531. a top block boss;

6. a pedal assembly; 61. a pedal connecting pin;

7. a front canopy bar assembly; 71. the front awning rod is connected with the pin.

Detailed Description

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The embodiment provides a seat pocket mechanism for install on the frame of perambulator, simple structure, and folding simple operation, occupation space is little after folding, is convenient for deposit and carry. As shown in fig. 1, 2 and 4, the seat pocket mechanism includes a seat plate assembly 1, a backrest rod assembly 2, an armrest assembly 3, a first locking structure and a second locking structure.

Wherein, backrest pole subassembly 2 and handrail subassembly 3 all rotate to be connected in bedplate subassembly 1, and handrail subassembly 3, backrest pole subassembly 2 and bedplate subassembly 1 coaxial coupling. In this embodiment, the seat pan assembly 1, the armrest assembly 3 and the backrest bar assembly 2 are connected in a rotational relationship by a seat pan connection pin 12. The first locking structure can lock the backrest rod assembly 2 and the armrest assembly 3, so that the backrest rod assembly 2 and the armrest assembly 3 are positioned and locked; the second locking structure can lock the armrest assembly 3 and the seat plate assembly 1, so that the armrest assembly 3 and the seat plate assembly 1 are positioned and locked. The backrest rod assembly 2 is provided with an unlocking piece 22, the unlocking piece 22 is in transmission connection with the first locking structure, and the unlocking piece 22 can unlock the first locking structure, so that the backrest rod assembly 2 can rotate relative to the armrest assembly 3. The backrest rod assembly 2 is in transmission connection with the second locking structure, and when the backrest rod assembly 2 in an unlocking state rotates to a preset position, the backrest rod assembly 2 can unlock the second locking structure, so that the armrest assembly 3 and the seat plate assembly 1 are unlocked.

That is, through the unlock piece 22 on the backrest rod assembly 2 and the rotation backrest rod assembly 2, the first locking structure and the second locking structure can be unlocked in sequence, and then the rotation folding of the backrest rod assembly 2, the armrest assembly 3 and the seat board assembly 1 is realized, and then the folding of the seat pocket mechanism is completed, the whole operation is simple and convenient, and the occupied space of the folded seat pocket mechanism is small, so that the seat pocket mechanism is convenient to store and carry.

As shown in fig. 2 to 4, the first locking structure includes a first latch tongue 41 and a first elastic member 42, both provided on the backrest bar assembly 2. The backrest rod assembly 2 is provided with a first cover body 21, and the side wall of the first cover body 21 is provided with a lock tongue avoiding groove 211. The armrest assembly 3 is provided with a second cover body 31, the second cover body 31 is coaxially connected with the first cover body 21, and the second cover body 31 is provided with a lock tongue inserting groove 311. The first cover body 21 and the second cover body 31 are buckled and connected, the first elastic piece 42 can apply pressure towards the rotation axis of the first cover body 21 to the first lock tongue 41, when the first cover body 21 and the second cover body 31 rotate relatively, the lock tongue avoiding groove 211 is aligned with the lock tongue inserting groove 311, the first elastic piece 42 can drive the first lock tongue 41 to penetrate through the lock tongue avoiding groove 211 and be inserted into the lock tongue inserting groove 311, and therefore relative rotation of the first cover body 21 and the second cover body 31 is limited, namely, the backrest rod assembly 2 and the armrest assembly 3 are locked.

Accordingly, the backrest rod assembly 2 and the armrest assembly 3 are unlocked only by withdrawing the first latch tongue 41 from the latch tongue insertion slot 311. Referring to fig. 1-3, the release 22 includes a handle 221 and a pull cable 222. The handle 221 is in driving connection with the first lock tongue 41 through a traction cable 222. The handle 221 is turned to drive the traction cable 222 to lift the first lock tongue 41, so that the first lock tongue 41 is withdrawn from the lock tongue insertion slot 311.

Specifically, as shown in fig. 2 and 3, in the present embodiment, the handle 221 is rotatably coupled to the top of the backrest rod assembly 2 by a handle 221 coupling pin. The first cover 21 is disposed at the bottom of the backrest rod assembly 2, and the latch avoiding slot 211 is disposed obliquely above the first cover 21 and is communicated with a latch sliding slot. The first lock tongue 41 is slidably disposed in the lock tongue sliding groove, and the cross-sectional area of the portion of the first lock tongue 41 extending out of the lock tongue avoiding groove 211 is smaller than the cross-sectional area of the portion thereof located in the lock tongue sliding groove, so as to prevent the first lock tongue 41 from falling out of the lock tongue sliding groove. The rod body of the backrest rod assembly 2 is of a hollow structure, the traction cable 222 is arranged on the rod body in a penetrating way, one end of the traction cable 222 is connected to the handle 221, and the other end is connected to the first lock tongue 41. The first elastic member 42 is sleeved outside the traction cable 222, one end of the first elastic member 42 abuts against the side portion of the first lock tongue 41, and the other end abuts against the inner wall surface of the lock tongue sliding groove. When the handle 221 is turned, the traction cable 222 pulls the first latch 41 to withdraw from the latch insertion slot 311, the first elastic member 42 is deformed by extrusion, and elastic potential energy for restoring the deformation is generated. When the first cover 21 and the second cover 31 are rotated subsequently and the latch avoiding groove 211 is aligned with the latch inserting groove 311 again, the first elastic member 42 stretches, so that the first latch 41 is driven to pass through the latch avoiding groove 211 and be inserted into the latch inserting groove 311. Illustratively, the first elastic member 42 may be selected from springs or compression springs in the prior art, which are easily deformable, resilient and low in cost.

Referring to fig. 2 to fig. 4, a first limiting portion 212 is further disposed on the first cover 21, and a first limiting boss 312 is disposed on the second cover 31. When the first locking structure is unlocked and the first cover 21 and the second cover 31 can rotate relatively, the first limiting boss 312 is slidably engaged with the first limiting portion 212. In this embodiment, the first limiting portion 212 is disposed on the bottom surface of the first cover 21, and is disposed along the circumferential direction of the first cover 21 to form an annular protrusion. And two stop parts are arranged between the first limiting part 212 and the side wall of the first cover body 21, are arranged along the radial direction of the first cover body 21 and are connected between the outer side wall of the first limiting part 212 and the inner side wall of the first cover body 21. When the first cover 21 and the second cover 31 are buckled and can rotate relatively, the first limiting boss 312 can slide along the channel formed between the first limiting portion 212 and the side wall of the first cover 21, and the sliding of the first limiting boss 312 is constrained by the two stopping portions. That is, the first limiting portion 212 and the first limiting boss 312 cooperate such that the first cover 21 and the second cover 31 can only rotate within a certain angular range, that is, the armrest assembly 3 and the backrest rod assembly 2 can only rotate within a predetermined angle. The above-mentioned predetermined angle is a figure of merit between the two stop portions and the connection line between the rotation center of the first cover 21, which can be determined by the user according to the actual requirement, and is not limited in this embodiment.

With continued reference to fig. 2 and 4, the second locking structure includes a locking tooth block 51 and a second resilient member 52. The seat board assembly 1 is provided with a third cover 11, and the locking tooth block 51, the second elastic piece 52 and the third cover 11 are coaxially arranged with the second cover 31. The third cover 11 is provided with a locking tooth accommodating groove 111, the locking tooth block 51 is arranged in the locking tooth accommodating groove 111, and the second elastic piece 52 is clamped between the locking tooth block 51 and the third cover 11. The second cover 31 is further provided with a locking tooth slot 313, and the second elastic member 52 can partially press the locking tooth block 51 into the locking tooth slot 313. When the second locking structure is in the locked state, under the action of the second elastic member 52, a part of the locking tooth block 51 is located in the locking tooth accommodating groove 111, and the other part is located in the locking tooth groove 313, that is, the second cover 31 and the third cover 11 cannot rotate relatively, so that the armrest assembly 3 and the seat board assembly 1 are positioned. When the second locking structure is in the unlocking state, the locking tooth block 51 is completely located in the locking tooth accommodating groove 111, and the relative rotation between the second cover body 31 and the third cover body 11 is not interfered by the locking tooth block 51, so that the armrest assembly 3 and the seat plate assembly 1 are unlocked. The second elastic member 52 may be a spring or a compression spring in the prior art, and is easily deformed, has high elasticity and is low in cost.

In particular, as shown in fig. 2-5, to unlock the second locking structure by rotation of the back bar assembly 2, the seat pocket mechanism further includes a linkage top block 53. The interlocking top piece 53 is coaxially provided with the second cover 31, and is sandwiched between the second cover 31 and the locking tooth piece 51. The linkage ejector block 53 is provided with an ejector block boss 531, the position of the second cover body 31 corresponding to the ejector block boss 531 is provided with an ejector block avoiding groove 314, and the ejector block boss 531 penetrates through the ejector block avoiding groove 314. The first cover 21 is provided with a first inclined surface 213 which can be matched with the top block boss 531. The first cover 21 is rotated, and the first inclined surface 213 is slidably engaged with the top block boss 531, so that the locking tooth block 51 can be pushed out of the locking tooth slot 313. That is, the first cover 21, the second cover 31, the interlocking top piece 53, the locking tooth piece 51, the second elastic member 52, and the third cover 11 are coaxially and rotatably connected in this order. In the rotation process of the first cover body 21, the first inclined surface 213 contacts with the top block boss 531 and pushes the top block boss 531 to move along the axial direction away from the second cover body 31, so as to drive the locking tooth block 51 to move, so that the locking tooth block 51 withdraws from the locking tooth slot 313 and enters into the locking tooth accommodating groove 111, and the second cover body 31 and the third cover body 11 are unlocked, and even if the armrest assembly 3 and the seat plate assembly 1 are unlocked, relative rotation can occur.

As shown in fig. 2, 4 and 5, the second cover 31 is further provided with a second limiting boss 315, and the third cover 11 is provided with a second limiting portion 112. When the second locking structure is unlocked and the second cover 31 and the third cover 11 can rotate relatively, the second limiting boss 315 is slidably engaged with the second limiting portion 112. In this embodiment, the second limiting portion 112 is two limiting grooves which are disposed on the third cover 11 and are connected to each other, and both the two limiting grooves extend along the peripheral side of the third cover 11. When the second cover 31 and the third cover 11 are buckled and can rotate relatively, the second limiting boss 315 can slide in the second limiting portion 112. The second limiting portion 112 and the second limiting boss 315 cooperate to enable the second cover 31 and the third cover 11 to rotate only within a certain angular range, that is, the armrest assembly 3 can only rotate between the folded state and the unfolded state.

More specifically, the first cover 21, the second cover 31, and the third cover 11 are provided in two, and are provided separately on both sides of the seat pocket mechanism. The tops of the two first covers 21 are connected through the rod body of the backrest rod assembly 2, the two second covers 31 are connected through the handrail rod 32 of the handrail assembly 3, and the two third covers 11 are connected through the seat plate body of the seat plate assembly 1. The connection structure of the first cover 21, the second cover 31 and the third cover 11 is mirror image, so that the operator can use the device.

Optionally, with continued reference to fig. 1, 2, 4, 6 and 7, the seat pocket mechanism further includes a footrest assembly 6, the footrest assembly 6 being rotatably connected to the seat plate assembly 1. Specifically, the pedal assembly 6 is rotatably connected to an end of the seat plate assembly 1 remote from the backrest bar assembly 2 by a pedal connection pin 61, and a rotation axis between the pedal assembly 6 and the seat plate assembly 1 is parallel to a rotation axis between the backrest bar assembly 2 and the seat plate assembly 1. The pedal assembly 6 can pedal after the infant sits on the seat plate assembly 1, and the sitting comfort level is improved. And the footrest assembly 6 can also be rotated for folding and storage.

Still alternatively, the seat pocket mechanism further comprises a front canopy bar assembly 7, the front canopy bar assembly 7 being rotatably connected to the back bar assembly 2. Specifically, the front canopy bar assembly 7 is rotatably coupled to the back bar assembly 2 by a front canopy bar coupling pin 71, and the front canopy bar assembly 7 is unfolded and can be used to shield the seat plate assembly 1. The front canopy bar assembly 7 comprises a turret and a canopy cloth. The rotating frame is matched with the top radian of the backrest rod assembly 2, is rotationally connected with the backrest rod assembly 2 and can rotate in a direction away from or close to the backrest rod assembly 2. The awning cloth is connected between the rotating frame and the backrest rod assembly 2, and when the rotating frame rotates in a direction away from the backrest rod assembly 2, the awning cloth is opened to shield the seat plate assembly 1, so as to provide sunshade or rain shielding functions for infants; when the turret rotates in a direction towards the backrest bar assembly 2, the tarpaulin is folded for storage.

When the seat pocket mechanism provided in this embodiment is folded, first, the handle 221 is rotated, the pull rope 222 is driven by the handle 221 to pull out the first lock tongue 41 locked in the lock tongue insertion slot 311, and the first locking structure is unlocked, so that the backrest rod assembly 2 can rotate towards the front of the seat pocket mechanism; then, in the rotation process of the backrest rod assembly 2, the first inclined surface 213 contacts with the top block boss 531 and pushes the top block boss 531 to move along the axial direction away from the armrest assembly 3, so as to drive the locking tooth block 51 to move, so that the locking tooth block 51 withdraws from the locking tooth groove 313 and enters into the locking tooth accommodating groove 111, and the second locking structure is unlocked, so that the armrest assembly 3 can rotate relative to the seat plate assembly 1; finally, the seat pocket mechanism is folded to the folded state shown in fig. 6 and 7 by continuing to push the backrest rod assembly 2 forward. It will be appreciated that during folding of the seat pocket mechanism, rotational adjustment of the footrest assembly 6 and front canopy bar assembly 7 is also required to facilitate folding of the seat pocket mechanism into the configuration shown in fig. 7. That is, before the seat pocket mechanism is folded, the front canopy bar assembly 7 is first folded to avoid interference with the front canopy bar assembly 7 when the back bar assembly 2 is rotated. After the backrest rod assembly 2, the armrest assembly 3 and the seat plate assembly 1 are folded, the pedal assembly 6 is rotated to be approximately parallel to the backrest rod assembly 2 and the armrest assembly 3, so that the occupied space of the seat pocket mechanism after folding is minimized.

The embodiment also provides a baby stroller, the seat pocket mechanism of the baby stroller can be folded together with the stroller frame, the whole structure is simple, the operation is convenient, the occupied space after folding is small, and the baby stroller is convenient to store, carry and transport.

Specifically, the stroller comprises a stroller frame and the seat pocket mechanism, and the seat plate assembly 1 of the seat pocket mechanism is mounted on the stroller frame.

More specifically, the cart frame comprises a frame body and a wheel mechanism. The seat board assembly 1 is connected to the top of the frame body, and the wheel mechanism is connected to the bottom of the frame body so as to drive the frame body and the seat pocket mechanism to move.

More specifically, the wheel mechanism includes a front wheel assembly and a rear wheel assembly. The front wheel assembly comprises two front wheels which are arranged on the front side of the frame body at intervals along the width direction of the frame body. The rear wheel assembly comprises two rear wheels which are arranged at the rear side of the frame body along the width direction of the frame body at intervals.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. Seat pocket mechanism, its characterized in that includes:

a seat plate assembly (1);

the backrest rod assembly (2) is rotatably connected with the seat plate assembly (1);

the armrest assembly (3) is rotationally connected to the seat board assembly (1), and the armrest assembly (3), the backrest rod assembly (2) and the seat board assembly (1) are coaxially connected;

a first locking structure for locking the backrest bar assembly (2) and the armrest assembly (3);

a second locking structure for locking the armrest assembly (3) and the seat plate assembly (1);

an unlocking piece (22) is arranged on the backrest rod assembly (2), and the unlocking piece (22) is in transmission connection with the first locking structure so as to unlock the first locking structure; the backrest rod assembly (2) is in transmission connection with the second locking structure, and when the backrest rod assembly (2) in an unlocking state rotates to a preset position, the backrest rod assembly (2) can unlock the second locking structure.

2. The seat pocket mechanism of claim 1, wherein the seat pocket mechanism comprises a seat pocket,

the backrest rod assembly (2) is provided with a first cover body (21), and the side wall of the first cover body (21) is provided with a lock tongue avoiding groove (211);

the handrail assembly (3) is provided with a second cover body (31), the second cover body (31) is coaxially connected with the first cover body (21), and the second cover body (31) is provided with a lock tongue inserting groove (311);

the first locking structure comprises a first lock tongue (41) and a first elastic piece (42) which are all arranged on the backrest rod assembly (2);

the first elastic piece (42) can apply pressure towards the rotation axis of the first cover body (21) to the first lock tongue (41), and when the lock tongue avoiding groove (211) is aligned with the lock tongue inserting groove (311), the first lock tongue (41) is driven to penetrate through the lock tongue avoiding groove (211) and then is inserted into the lock tongue inserting groove (311).

3. Seat pocket mechanism according to claim 2, characterized in that the unlocking member (22) is in driving connection with the first locking tongue (41) for driving the first locking tongue (41) out of the locking tongue insertion slot (311).

4. The seat pocket mechanism according to claim 2, wherein a first limiting portion (212) is further provided on the first cover body (21), a first limiting boss (312) is provided on the second cover body (31), and when the first cover body (21) and the second cover body (31) can rotate relatively, the first limiting boss (312) is in sliding fit with the first limiting portion (212).

5. Seat pocket mechanism according to claim 2, characterized in that the seat plate assembly (1) is provided with a third cover (11), the second locking structure comprising a locking tooth block (51) and a second elastic element (52);

the locking tooth block (51), the second elastic piece (52), the third cover body (11) and the second cover body (31) are coaxially arranged, a locking tooth accommodating groove (111) is formed in the third cover body (11), the locking tooth block (51) is arranged in the locking tooth accommodating groove (111), and the second elastic piece (52) is clamped between the locking tooth block (51) and the third cover body (11);

the second cover body (31) is also provided with a locking tooth slot (313), and the second elastic piece (52) can partially press the locking tooth block (51) into the locking tooth slot (313).

6. The seat pocket mechanism according to claim 5, further comprising a linkage top block (53), wherein the linkage top block (53) is coaxially arranged with the second cover body (31), and is clamped between the second cover body (31) and the locking tooth block (51);

a top block boss (531) is arranged on the linkage top block (53), a top block avoiding groove (314) is formed in the position, corresponding to the top block boss (531), of the second cover body (31), the top block boss (531) penetrates through the top block avoiding groove (314), and a first inclined surface (213) which can be matched with the top block boss (531) is arranged on the first cover body (21);

the first cover body (21) is rotated, the first inclined surface (213) is in sliding fit with the top block boss (531), and the locking tooth block (51) can be pushed out of the locking tooth groove (313).

7. The seat pocket mechanism according to claim 5, wherein a second limiting boss (315) is further provided on the second cover body (31), a second limiting portion (112) is provided on the third cover body (11), and when the second cover body (31) and the third cover body (11) can rotate relatively, the second limiting boss (315) is slidably matched with the second limiting portion (112).

8. Seat pocket mechanism according to any one of claims 1-7, further comprising a pedal assembly (6), said pedal assembly (6) being rotatably connected to said seat plate assembly (1).

9. Seat pocket mechanism according to any one of claims 1-7, further comprising a front canopy lever assembly (7), said front canopy lever assembly (7) being rotatably connected to said backrest lever assembly (2).

10. A stroller comprising a stroller frame and further comprising a seat pocket mechanism according to any one of claims 1-9, said seat pocket mechanism being mounted to said stroller frame.