CN215154960U - Baby carriage - Google Patents

Abstract

The utility model belongs to the technical field of children's carrier, a bassinet is disclosed. The baby carriage comprises a frame, a seat and a push rod, wherein the seat is rotationally connected with the frame so as to be provided with a front riding position and a rear riding position which are suitable for children to ride forwards and backwards; the stroller further includes a first locking mechanism including a first locking portion and a second locking portion capable of locking the seat and the frame when the seat is in the rear riding position and the front riding position, respectively; the push rod can rotate from the rear side of the frame to the front side of the frame, the push rod is in transmission connection with the first locking mechanism, and when the push rod rotates from the rear side of the frame to the front side of the frame, the push rod can unlock the first locking part or the second locking part to allow the saddle to rotate and switch between a rear riding position and a front riding position. The utility model provides a saddle switching-over can be accomplished simply, conveniently to this bassinet to switching-over is taken around being suitable for the baby.

Description

Baby carriage

Technical Field

The utility model relates to a children's carrier technical field especially relates to a bassinet.

Background

The seat reversing function is one of the important functions of a baby carriage (a child stroller, a cradle stroller, etc.), and the seat reversing function can enable a baby to sit on the baby carriage in a forward or backward sitting posture, so that the baby can be prevented from being hurt by sand wind and strong light by reversing sitting in different traveling directions, and meanwhile, the baby carriage can be seated facing to the family of the stroller when the baby is small, thereby being beneficial to obtaining the safety feeling, strengthening parent-child communication, and the like.

The saddle switching-over function generally realizes based on the activity grafting structure of bassinet saddle and automobile body, during the switching-over, pulls out the saddle through the unblock button of pressing the grafting structure of saddle both sides, turns to the saddle and inserts in the automobile body again, needs whole replacement or removal subassemblies such as saddle, handrail and sunshade promptly, consumes physical power, and the less women of not being convenient for strength and elder's operation. Moreover, because the seat is completely lifted away from the vehicle body in the reversing process, the baby needs to be taken out of the seat before reversing to avoid falling, and the baby needs to be taken in the seat again after reversing is finished, so that the whole reversing process is complicated.

Therefore, the above problems need to be solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bassinet, this bassinet can simply, accomplish the saddle switching-over conveniently to switching-over is taken around being suitable for the baby.

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

a baby carriage comprises a frame, a seat and a push rod, wherein the seat is rotatably connected to the frame so as to be provided with a front riding position and a rear riding position suitable for a child to ride forwards and backwards;

the stroller further includes a first locking mechanism including a first locking portion and a second locking portion capable of locking the seat and the frame when the seat is in the rear seating position and the front seating position, respectively;

the push rod can rotate from the rear side of the frame to the front side of the frame, the push rod is in transmission connection with the first locking mechanism, and when the push rod rotates from the rear side of the frame to the front side of the frame, the push rod can unlock the first locking part or the second locking part so as to allow the saddle to rotate and switch between the rear riding position and the front riding position.

Preferably, the stroller further comprises a second locking mechanism configured to lock the push rod and the seat.

Preferably, the baby carriage further comprises an unlocking mechanism, and the unlocking mechanism is in transmission connection with the second locking mechanism so as to unlock the second locking mechanism.

Preferably, the second lock mechanism in the unlocked state is switchable to the locked state when the push rod is rotated from the rear side of the frame to the front side of the frame.

Preferably, the push rod is rotatably coupled to the seat.

Preferably, the frame is provided with a retainer ring, and the inner wall of the retainer ring is provided with a lock hole;

the first locking part comprises a first elastic piece and a first bolt which are both arranged on the saddle;

the second locking part comprises a second elastic piece and a second bolt which are both arranged on the vehicle seat;

the first spring bolt and the second spring bolt are arranged in a back-to-back mode, the first elastic piece and the second elastic piece can apply pressure towards the inner wall of the check ring to the first spring bolt and the second spring bolt respectively, the seat is located in the rear riding position and the front riding position, and the first spring bolt and the second spring bolt can be aligned with the lock hole respectively to be inserted into the lock hole.

Preferably, the stroller further comprises:

the first transmission mechanism is in transmission connection between the push rod and the first lock tongue;

the second transmission mechanism is in transmission connection between the push rod and the second lock tongue;

when the push rod rotates from the rear side of the seat to the front side of the seat, the first transmission mechanism and the second transmission mechanism can be driven forward and reversely respectively, so that the second lock tongue moves out of the lock hole, and the first lock tongue is allowed to be inserted into the lock hole;

when the push rod rotates from the front side of the saddle to the rear side of the saddle, the first transmission mechanism and the second transmission mechanism can be driven reversely and positively respectively, so that the first lock tongue moves out of the lock hole, and the second lock tongue is allowed to be inserted into the lock hole.

Preferably, the first elastic piece is arranged between the first lock tongue and the seat, and the second elastic piece is arranged between the first lock tongue and the second lock tongue;

the first spring bolt is connected with the second spring bolt in a sliding manner, a position-withdrawing block protruding towards the first spring bolt is arranged on the second spring bolt, and a strip-shaped slot formed in the direction in which the first spring bolt is inserted into the lock hole is formed in the first spring bolt;

the retreat block is inserted into the slot and can move along the extending direction of the slot so as to allow the first bolt and the second bolt to deviate from the movement and to be selectively inserted into the lock hole, and allow the first bolt and the second bolt to move oppositely to both withdraw from the lock hole.

Preferably, the first transmission mechanism includes:

the first driving block can drive the first lock tongue to exit the lock hole when moving along a first direction;

the third elastic piece is used for resetting the first driving block so as to allow the first lock tongue to be inserted into the lock hole; and

the first traction part is in transmission connection between the first driving block and the push rod;

when the push rod rotates from the front side of the seat to the rear side of the seat, the first driving block can be pulled to move along a first direction by the first pulling part; when the push rod rotates from the rear side of the saddle to the front side of the saddle, the first driving block can be released by the first traction mechanism, so that the first driving block is reset.

Preferably, the second transmission mechanism includes:

a safety seat slidably connected to the seat;

the fourth elastic piece is used for applying pressure to the safety seat to enable the safety seat to move into a reset path of the first driving block so as to limit the reset of the first driving block;

the second driving block can drive the safety seat to exit from a reset path of the first driving block when moving along a second direction;

the fourth elastic piece is used for resetting the second driving block so as to allow the safety seat to move into a resetting path of the first driving block;

the second traction part is in transmission connection between the second driving block and the push rod;

when the push rod rotates from the rear side of the seat to the front side of the seat, the second driving block can be pulled to move along a second direction by the second pulling part; when the push rod rotates from the front side of the seat to the rear side of the seat, the second driving block can be released by the first traction mechanism, so that the second driving block is reset.

The utility model has the advantages that:

the utility model provides a saddle switching-over process of bassinet only needs to rotate push rod and saddle, need not to embrace the baby out of the saddle, and need not to dismantle and move the saddle, and the switching-over process is simple, laborsaving, and women or the head of a parent of the elder generation all can easily operate.

Drawings

FIG. 1 is an exploded view of a stroller in an embodiment of the present invention;

fig. 2 is a schematic structural view of a seat in an embodiment of the present invention in a front riding position;

FIG. 3 is a schematic view of the saddle according to the embodiment of the present invention;

FIG. 4 is a second schematic view of the saddle according to the embodiment of the present invention;

fig. 5 is a schematic structural view of a seat in an embodiment of the present invention in a rear seating position;

FIG. 6 is a third schematic view of the saddle according to the embodiment of the present invention;

FIG. 7 is a fourth schematic view of the saddle according to the embodiment of the present invention;

fig. 8 is a schematic structural view of a seat in an embodiment of the invention;

fig. 9 is a schematic structural view of a seat and a first locking mechanism in an embodiment of the present invention;

fig. 10 is one of the schematic structural views of the first locking mechanism in the embodiment of the present invention;

fig. 11 is a second schematic structural view of the first locking mechanism in the embodiment of the present invention;

fig. 12 is a third schematic structural view of the first locking mechanism in the embodiment of the present invention;

fig. 13 is a fourth schematic structural view of the first locking mechanism in the embodiment of the present invention (the first driving block and the second driving block are removed);

fig. 14 is a schematic structural view of a movable plate of the seat in an embodiment of the present invention;

fig. 15 is a schematic structural view of another movable plate of the seat according to the embodiment of the present invention.

In the figure:

1. a frame; 11. a frame body; 12. a front wheel assembly; 13. a rear wheel assembly; 14. a retainer ring;

2. a vehicle seat; 21. a boss; 22. a movable plate;

3. a push rod;

41. a first locking section; 411. a first elastic member; 412. a first bolt; 4121. a slot; 4122. a first drive column;

42. a second locking portion; 421. a second elastic member; 422. a second bolt; 4221. a bit backing block;

43. a lock hole; 44. positioning a groove; 45. perforating;

46. a first transmission mechanism; 461. a first driving block; 4611. a safety groove; 462. a third elastic member; 463. A first traction part; 4631. a first slider; 4632. a first traction cable;

47. a second transmission mechanism; 471. a safety seat; 4711. a second drive column; 472. a fourth elastic member; 473. A second driving block; 474. a fifth elastic member; 475. a second traction part; 4751. a second slider; 4752. a second pull cable.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1, the present embodiment provides a stroller, which includes a frame 1, a seat 2, a push rod 3, and the like, wherein the frame 1 includes a frame body 11, and a front wheel assembly 12 and a rear wheel assembly 13 mounted on the frame body 11, the seat 2 is mounted on the frame body 11, and the push rod 3 is mounted on the rear side of the seat 2. In order to facilitate the baby to ride on the baby carriage in a forward or backward sitting posture, the baby carriage is provided with a seat 2 reversing function, the reversing function is that the installation position of the seat 2 relative to the frame 1 can be changed, so that when a parent pushes the frame 1 through the push rod 3, the seat 2 can be respectively in a forward riding position suitable for the baby to ride forward (namely, towards the side of the front wheel component 12, away from the push rod 3 and the parent pushing and holding the push rod 3) and a backward riding position suitable for the baby to ride backward (namely, towards the side of the rear wheel component 13, towards the push rod 3 and the parent holding the push rod 3) as shown in fig. 5.

In order to avoid the cumbersome operations of disassembling and loading the seat 2 during the process of switching the seat between the front and rear riding positions as in the prior art, as shown in fig. 1, in the present embodiment, the seat 2 can be rotatably connected to the frame 1 by a substantially vertical rotating shaft, so that the seat 2 can have at least two working states of the front and rear riding positions after rotating around the rotating shaft.

To achieve the above reversing process, the stroller provided in this embodiment further includes a first locking mechanism including a first locking portion 41 and a second locking portion 42, and the first locking portion 41 and the second locking portion 42 are capable of locking the seat 2 and the frame 1 when the seat 2 is in the rear riding position and the front riding position, respectively. The push rod 3 can rotate from the rear side of the frame 1 to the front side of the frame 1, the push rod 3 is in transmission connection with the first locking mechanism, and when the push rod 3 rotates from the rear side of the frame 1 to the front side of the frame 1, the push rod 3 can unlock the first locking part 41 or the second locking part 42 in a locking state to allow the saddle 2 to be rotationally switched between a rear riding position and a front riding position.

Specifically, the reversing process of the seat 2 from the front riding position to the rear riding position is sequentially as shown in fig. 2, 3, 4 and 5. In fig. 2, seat 2 is in the front riding position, seat 2 faces forward, push rod 3 is located on the side of rear wheel assembly 13, first locking portion 41 is in the unlocked state, and second locking portion 42 is in the locked state. When it is necessary to switch seat 2 to the rear riding position, push rod 3 is pushed as shown in fig. 3, push rod 3 is pushed from the rear wheel assembly 13 side to the front wheel assembly 12 side, push rod 3 is unlocked from second locking portion 42 to allow seat 2 to rotate relative to frame 1. Subsequently, seat 2 is turned as shown in fig. 4, seat 2 is switched to the rear riding position shown in fig. 5, seat 2 is directed to the rear wheel assembly 13 side, and push rod 3 rotating along with seat 2 is also turned to the rear wheel assembly 13 side. When the seat 2 is switched to the rear-riding position, the first locking portion 41 is switched from the unlocked state to the locked state to lock the seat 2 and the frame 1, while the second locking portion 42 is kept in the unlocked state ready for locking the seat 2 and the frame 1 when the seat 2 is switched to the front-riding position again.

Conversely, the reversing process of the seat 2 from the rear riding position to the front riding position is shown in fig. 5, 6, 7 and 2 in sequence. In fig. 5, seat 2 is in the rear seating position, with seat 2 facing rearward, push rod 3 on the side of rear wheel assembly 13, second locking portion 42 is in the unlocked state, and first locking portion 41 is in the locked state. When it is necessary to shift seat 2 to the front riding position, push rod 3 is pushed as shown in fig. 6, push rod 3 is pushed from the rear wheel assembly 13 side to the front wheel assembly 12 side, and push rod 3 unlocks first locking portion 41 to allow seat 2 to rotate with respect to frame 1. Subsequently, seat 2 is turned as shown in fig. 7, seat 2 is switched to the front riding position shown in fig. 2, seat 2 is directed to front wheel assembly 12 side, and push rod 3 rotating along with seat 2 is also turned to rear wheel assembly 13 side. When the seat 2 is switched to the front riding position, the second locking portion 42 is switched from the unlocked state to the locked state to lock the seat 2 and the frame 1, while the first locking portion 41 is kept in the unlocked state ready for locking the seat 2 and the frame 1 when the seat 2 is switched to the rear riding position again.

As can be seen from a comparison of fig. 2 and 5, the seat 2 of the stroller is switched between the front riding position and the rear riding position by changing the position of the seat 2 in the front and rear directions, and the push rod 3 needs to be kept at the rear side of the frame 1 when the seat 2 is in the front riding position and the rear riding position, so that parents can push the stroller. In the present embodiment, the push rod 3 is preferably rotatably connected to the seat 2, so that the push rod 3 can be rotated again with the seat 2 and held at the rear side of the frame 1 in accordance with the reverse rotation of the seat 2 after the push rod 3 is rotated from the rear side of the frame 1 to the front side of the frame 1 to unlock the first locking portion 41 or the second locking portion 42 regardless of whether the seat 2 is switched from the front riding position to the rear riding position or the seat 2 is switched from the rear riding position to the front riding position. That is, the reversing process of the seat 2 of the baby carriage only needs parents to complete the rotation actions of the push rod 3 and the seat 2, the baby carriage does not need to be taken out of the seat 2, the seat 2 does not need to be detached and moved, the reversing process is simple and labor-saving, and the baby carriage can be easily operated by females or parents of a senior citizen.

For the purpose of locking and unlocking, the first locking portion 41 and the second locking portion 42 of the first locking mechanism may be the same or different mechanical lock structures, and both are mounted on one of the seat 2 and the frame 1, and can form a matching structure such as plugging or buckling with the other one of the seat 2 and the frame 1 when locking, so as to limit the relative rotation of the seat 2 and the frame 1. The unlocking actions of the first locking part 41 and the second locking part 42 are driven by the rotation action formed in the process that the push rod 3 rotates from the rear side of the frame 1 to the front side of the frame 1, namely, a transmission structure for driving the locking parts to act to release the relative rotation limitation of the seat 2 and the frame 1 is in transmission connection with the push rod 3, so that the unlocking of the first locking part 41 and the second locking part 42 is realized by rotating along with the rotating shaft of the push rod 3 or being pulled by the push rod 3.

For the sake of understanding, fig. 8 to 13 exemplarily show the first locking mechanism employed in the present embodiment and the transmission structure and the like acting between the push rod 3 and the first locking mechanism, which will be described in detail below.

Referring to fig. 1, 8 and 9, a retainer 14 protruding upward is disposed on the top of the frame 1, and a locking hole 43 is disposed on the inner wall of the retainer 14. The bottom of the seat 2 is provided with a boss 21, the inner side of the periphery of the boss 21 is recessed inwards to form a positioning groove 44, when the seat 2 is mounted on the frame 1, the retainer ring 14 on the frame 1 can be just inserted into the positioning groove 44, so that the seat 2 can be limited to be lifted upwards away from the frame 1 or rotate back and forth on the frame 1.

The portion of the boss 21 of the seat 2 located inside the positioning groove 44 is provided with two through holes 45, and the two through holes 45 can be aligned with the lock holes 43 when the seat 2 is in the front seating position and the rear seating position, respectively. The first locking portion 41 includes a first elastic piece 411 and a first locking tongue 412 both provided in the boss 21. The second locking part 42 includes a second elastic member 421 and a second latch 422 both provided on the seat 2; the first bolt 412 and the second bolt 422 are arranged oppositely and can correspondingly extend out of one of the two through holes 45, and the first elastic piece 411 and the second elastic piece 421 can respectively apply pressure to the first bolt 412 and the second bolt 422 towards the inner wall of the retainer ring 14, so that when the seat 2 is in the rear riding position and the front riding position, the first bolt 412 and the second bolt 422 can be respectively aligned with the lock hole 43 to be inserted into the lock hole 43, thereby limiting the seat 2 from being lifted upwards from the frame 1 and also limiting the seat 2 from rotating on the frame 1, namely completely locking the seat 2 and the frame 1.

Correspondingly, the transmission structure mentioned above includes a first transmission mechanism 46 drivingly connected between the push rod 3 and the first locking portion 41, and a second transmission mechanism 47 drivingly connected between the push rod 3 and the second locking portion 42. When the push rod 3 rotates from the rear side of the seat 2 to the front side of the seat 2, the first transmission mechanism 46 and the second transmission mechanism 47 can be driven forward and backward, respectively, to move the second latch tongue 422 out of the lock hole 43 and allow the first latch tongue 412 to be inserted into the lock hole 43. When the push rod 3 rotates from the front side of the seat 2 to the rear side of the seat 2, the first transmission mechanism 46 and the second transmission mechanism 47 can be driven in reverse and forward directions, respectively, to move the first latch tongue 412 out of the latch hole 43 and allow the second latch tongue 422 to be inserted into the latch hole 43. It is understood that the push rod 3 is rotated from the rear side of the seat 2 to the rear of the front side of the seat 2, i.e., the position where the push rod 3 is located when the seat 2 is in the rear-riding position, and the push rod 3 is rotated from the front side of the seat 2 to the rear of the seat 2, i.e., the position where the push rod 3 is located when the seat 2 is in the front-riding position.

When the reversing operation of the seat 2 is disassembled, a first operation of rotating the push rod 3 from one side of the seat 2 to the other side and a second operation of rotating the seat 2 after the first operation is completed to reverse the seat 2 back and forth are performed, respectively. Taking the example of the seat 2 being switched from the rear seating position to the front seating position, after the first operation of rotating the push rod 3 from the front side to the rear side of the seat 2, the first latch 412 needs to be unlocked to enable the second operation. After the first action is completed, the push rod 3 is already at the rear side of the seat 2 in the front riding position state, that is, after the first action is completed, the locking action of the second latch 422 and the lock hole 43 is no longer realized based on the action of the push rod 3, and at this time, the second transmission mechanism 47 is reversely driven by the push rod 3 completing the first action, the second latch 422 is released from being retained in the through hole 45, so that by means of the extension elastic force of the second elastic member 421, the second latch 422 can extend out of the through hole 45 and abut against the inner wall of the retainer ring 14, when the second action is completed, the second latch 422 can be directly opposite to the lock hole 43 to be inserted into the lock hole 43, so as to lock the seat 2 on the frame 1, and complete the reversing action of the seat 2 from the rear riding position to the front riding position.

It can be understood that the unlocking action of the first locking portion 41 is that the first transmission mechanism 46 pulls the first latch 412 towards the inside of the boss 21 at the bottom of the seat 2, so that the first latch 412 retracts into the through hole 45 to press the first elastic member 411, and the first elastic member 411 is charged with energy; the locking action of the first locking portion 41 is to release the first locking tongue 412 by the first transmission mechanism 46, so that the first elastic member 411 stretches to make the first locking tongue 412 extend out of the through hole 45 and then extend into the locking hole 43. Similarly, the unlocking action of the second locking part 42 is that the second transmission mechanism 47 pulls the second latch 422 towards the inside of the boss 21 at the bottom of the seat 2, so that the second latch 422 retracts into the through hole 45 to press the second elastic element 421, and the second elastic element 421 is charged with energy; the locking action of the second locking portion 42 is to release the second latch 422 by the second transmission mechanism 47, so that the second elastic member 421 is extended to extend the second latch 422 out of the through hole 45 and then into the locking hole 43.

Referring to fig. 9 to 13, in order to simplify the transmission structure, in this embodiment, the first elastic member 411 is preferably disposed between the first latch 412 and the seat 2 (see fig. 9), the second elastic member 421 is disposed between the first latch 412 and the second latch 422 (see fig. 11), the first latch 412 is slidably connected to the second latch 422, the second latch 422 is provided with a retraction block 4221 (see fig. 12 and 13) protruding toward the first latch 412, and the first latch 412 is provided with a strip-shaped slot 4121 opened along a direction in which the first latch 412 is inserted into the latch hole 43. The retraction block 4221 is inserted into the slot 4121 and can move along the extending direction of the slot 4121 to allow the first latch tongue 412 and the second latch tongue 422 to move away from each other and to be alternatively inserted into the lock hole 43, and to allow the first latch tongue 412 and the second latch tongue 422 to move towards each other and to both exit the lock hole 43.

Specifically, still take the example that the seat 2 is switched from the rear seating position to the front seating position, and please refer to the view direction in fig. 12, when the seat 2 is in the rear seating position, the first latch 412 is pushed and inserted into the latch hole 43 by the extended first elastic member 411, meanwhile, the backward block 4221 abuts against the right side of the slot 4121 (i.e., the side away from the first latch 412), the second latch 422 is pulled and held within the through hole 45 by the first latch 412, and the second elastic member 421 is in the extended or slightly contracted state. When the first action of reversing is completed, that is, the push rod 3 rotates from the front side to the rear side of the seat 2, the first latch 412 is driven by the first transmission mechanism 46 to retract into the through hole 45, the retraction block 4221 is located on the left side of the insertion slot 4121 (i.e., on the side facing the first latch 412), so that the first elastic member 411 is pressed and retracted by the first latch 412 to store energy, meanwhile, the second latch 422 is still pressed by the retainer ring 14, and the second elastic member 421 is also pressed and retracted by the first latch 412 to store energy. When the second action of reversing is completed, that is, the seat 2 rotates to make the second tongue 422 align with the lock hole 43, the second tongue 422 is no longer stopped by the retaining ring 14, the second elastic member 421 extends to push the second tongue 422 to the insertion lock hole 43, and at this time, the backward block 4221 abuts against the right side of the insertion groove 4121 again along with the sliding action of the second tongue 422.

When the seat 2 is switched from the front seating position to the rear seating position, that is, the push handle is rotated from the rear side to the front side of the seat 2, the first transmission mechanism 46 releases the position restriction on the first latch 412 held in the through hole 45 to allow the first elastic member 411 to stretch, so that the first latch 412 moves leftward, the second latch 422 is pulled by the repositioning block 4221 to exit the lock hole 43, and the first elastic member 411 can continue to stretch to allow the first latch 412 to be inserted into the lock hole 43 when the seat 2 is rotated to align the first latch 412 with the lock hole 43.

Referring to fig. 9 and 12, in the present embodiment, the first transmission mechanism 46 includes a first driving block 461, a third elastic element 462 and a first drawing portion 463, and the first driving block 461 is slidably mounted on the seat 2 and can drive the first latch tongue 412 to exit from the lock hole 43 when moving in the first direction. The third elastic member 462 is disposed between the first driving block 461 and the seat 2, and serves to reset the first driving block 461 to allow the first latch 412 to be inserted into the latch hole 43. The first pulling portion 463 is drivingly connected between the first driving block 461 and the push rod 3, and when the push rod 3 rotates from the front side of the seat 2 to the rear side of the seat 2, the first pulling portion 463 can pull the first driving block 461 to move along a first direction (i.e. downward in fig. 12), so that the first lock tongue 412 exits the lock hole 43. When the push rod 3 rotates from the rear side of the seat 2 to the front side of the seat 2, the first driving block 461 can be released by the first pulling mechanism to reset the first driving block 461, so as to allow the first locking tongue 412 to be inserted into the locking hole 43.

Specifically, the first latch 412 is provided with a first driving column 4122 in a protruding manner, the first driving block 461 is substantially in a trapezoid structure, an inclined plane formed by a waist of the trapezoid structure is opposite to the first driving column 4122, when the first latch 412 extends out of the locking hole 43, the first driving column 4122 is substantially flush with a lower bottom of the trapezoid, when the first pulling portion 463 pulls the first driving block 461 to move along the first direction, the third elastic member 462 contracts, the inclined plane of the first driving block 461 moves towards the first driving column 4122 and abuts against the first driving column 4122, so that the first driving column 4122 and the first latch 412 move towards the second latch 422, so that the first latch 412 exits from the locking hole 43 and compresses the first elastic member 411, which is the process described above for driving the first transmission mechanism 46 when the push rod 3 rotates from the front side of the seat 2 to the rear side of the seat 2.

When the push rod 3 rotates from the rear side of the seat 2 to the front side of the seat 2, the push rod 3 releases the first pulling portion 463, i.e. releases the first driving block 461, the third elastic element 462 expands to drive the first driving block 461 to return, and under the expanding push of the first elastic element 411, the first latch tongue 412 moves away from the second latch tongue 422, so that the first driving column 4122 moves back to the lower bottom of the trapezoid.

Referring to fig. 9 and 12, in the present embodiment, the second transmission mechanism 47 includes a safety seat 471, a fourth elastic element 472, a second driving block 473, a fifth elastic element 474 and a second pulling part 475. The safety seat 471 is slidably connected to the seat 2; the fourth elastic element 472 is disposed between the safety seats 471 of the seat 2, so as to apply pressure to the safety seats 471, so that the safety seats 471 move into the reset path of the first driving block 461, thereby limiting the reset of the first driving block 461. The second drive block 473 can drive the safety seat 471 out of the reset path of the first drive block 461 when moving in the second direction. Fifth elastic member 474 is disposed between second driving block 473 and seat 2 and serves to reset second driving block 473 to allow safety seat 471 to move into the reset path of first driving block 461. The second drawing part 475 is drivingly connected between the second driving block 473 and the push rod 3. When the push rod 3 rotates from the rear side of the seat 2 to the front side of the seat 2, the second driving block 473 can be pulled to move in the second direction by the second pulling part 475; when the push rod 3 is rotated from the front side of the seat 2 to the rear side of the seat 2, the second driving block 473 can be released by the first traction mechanism to reset the second driving block 473.

Specifically, one end of the first driving block 461 is provided with a safety slot 4611, the safety seat 471 continuously abuts against the side of the first driving block 461, where the safety slot 4611 is opened, under the action of the fourth elastic element 472, when the first driving block 461 moves towards the first direction to make the first latch 412 exit the lock hole 43, the safety seat 471 just faces the safety slot 4611, so as to be inserted into the safety slot 4611 to limit the first driving block 461 to reset, and at this time, the second latch 422 keeps abutting against the retainer ring 14 or keeps being inserted into the lock hole 43 under the action of the first latch 412 and the second elastic element 421.

The safety seat 471 is protruded with a second driving column 4711, and the second driving block 473 is similar to the first driving block 461 in structure and also has a substantially trapezoid structure, a slope formed by a waist of the trapezoid structure is opposite to the second driving column 4711, when the safety seat 471 is moved into the reset path of the first driving block 461 under the extending and pushing force of the fourth elastic member 472, i.e. inserted into the safety slot 4611, the second driving column 4711 is substantially flush with the lower bottom of the trapezoid. When the second pulling part 475 pulls the second driving block 473 to move along the second direction (i.e. upward direction in fig. 12), the fifth elastic element 474 contracts to store energy, the inclined surface of the second driving block 473 moves towards the second driving post 4711 and abuts against the second driving post 4711, so that the second driving post 4711 and the safety seat 471 move away from the first driving block 461, so that the safety seat 471 exits the safety groove 4611 and compresses the fourth elastic element 472, which is the above-mentioned process of reversely driving the second transmission mechanism 47 when the push rod 3 rotates from the rear side of the seat 2 to the front side of the seat 2.

When the push rod 3 rotates from the front side of the seat 2 to the rear side of the seat 2, the push rod 3 releases the second pulling part 475, i.e. releases the second driving block 473, the fifth elastic element 474 expands to drive the second driving block 473 to return, and under the expanding push of the fourth elastic element 472, the safety seat 471 moves towards the first driving block 461, so that the second driving column 4711 moves back to the bottom of the trapezoid. At this time, the safety seat 471 can be inserted into the safety slot 4611 again.

Referring to fig. 9 and 15, in the present embodiment, the movable plates 22 are rotatably disposed on both sides of the seat 2, the two movable plates 22 are respectively used for being fixedly connected to both ends of the push rod 3, the first pulling portion 463 and the second pulling portion 475 respectively include a first sliding block 4631 and a second sliding block 4751 slidably disposed in an arc-shaped groove formed in the movable plates 22, and a first pulling cable 4632 and a second pulling cable 4752 respectively connected between the first driving block 461 and the first sliding block 4631 and between the second driving block 473 and the second sliding block 4751. The first sliding block 4631 and the second sliding block 4751 respectively protrude from the movable plates 22 to be matched with the push rod 3 in an inserting manner, when the push rod 3 rotates, the first sliding block 4631 and the second sliding block 4751 are driven to slide in the arc-shaped grooves of the two movable plates 22, and because the two movable plates 22 are arranged in a mirror image manner, when the first sliding block 4631 pulls the first traction cable 4632, the second sliding block 4751 releases the second traction cable 4752, and when the second sliding block 4751 pulls the second traction cable 4752, the first sliding block 4631 releases the first traction cable 4632, so that when the push rod 3 drives the first transmission mechanism 46 in a forward direction, the second transmission mechanism 47 is driven in a reverse direction, and when the push rod 3 drives the first transmission mechanism 46 in a reverse direction, the second transmission mechanism 47 is driven in a forward direction.

In addition, the stroller provided in this embodiment further includes a second locking mechanism configured to lock the push rod 3 and the seat 2, so that the parent can lock the push rod 3 and the seat 2 when pushing the stroller or after completing the reversing action, and the push rod 3 is prevented from rotating, that is, the seat 2 can be prevented from being mistakenly unlocked from the frame 1. Further, the baby carriage also comprises an unlocking mechanism which is in transmission connection with the second locking mechanism so as to unlock the second locking mechanism, thereby allowing the push rod 3 to be rotated to reverse the seat 2. Preferably, the second locking mechanism in the unlocked state can be switched to the locked state when the push rod 3 is rotated from the rear side of the frame 1 to the front side of the frame 1, thereby eliminating the need for the parent to lock the second locking mechanism again.

The second locking mechanism capable of locking the push rod 3 and the seat 2 and the structure capable of allowing the second locking mechanism to realize self-locking when the second locking mechanism reaches the preset position are the prior art, and are not described herein again. It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A buggy comprising a frame (1), a seat (2) and a push rod (3), said seat (2) being pivotally connected to said frame (1) so as to have a front and a rear seating position suitable for seating a child forwards and backwards, characterized in that:

the buggy further comprising a first locking mechanism comprising a first locking part (41) and a second locking part (42), the first locking part (41) and the second locking part (42) being able to lock the seat (2) and the frame (1) when the seat (2) is in the rear riding position and the front riding position, respectively;

the push rod (3) can rotate from the rear side of the frame (1) to the front side of the frame (1), the push rod (3) is in transmission connection with the first locking mechanism, and when the push rod (3) rotates from the rear side of the frame (1) to the front side of the frame (1), the push rod (3) can unlock the first locking part (41) or the second locking part (42) so as to allow the saddle (2) to rotate and switch between the rear riding position and the front riding position.

2. A stroller according to claim 1, further comprising a second locking mechanism configured to lock the push rod (3) and the seat (2).

3. A stroller as defined in claim 2, further comprising an unlocking mechanism drivingly connected to the second locking mechanism to enable unlocking of the second locking mechanism.

4. A buggy according to claim 3, characterised in that the second locking mechanism in the unlocked state can be switched to the locked state when the push rod (3) is turned from the rear side of the frame (1) to the front side of the frame (1).

5. A buggy according to claim 1, characterised in that the push rod (3) is pivotally connected to the seat (2).

6. A stroller according to any of claims 1-5, wherein:

the frame (1) is provided with a retainer ring (14), and the inner wall of the retainer ring (14) is provided with a lock hole (43);

the first locking part (41) comprises a first elastic piece (411) and a first bolt (412) which are both arranged on the saddle (2);

the second locking part (42) comprises a second elastic piece (421) and a second bolt (422) which are both arranged on the vehicle seat (2);

the first bolt (412) and the second bolt (422) set up dorsad, first elastic component (411) and second elastic component (421) can be respectively to first bolt (412) with second bolt (422) exert towards the pressure of retaining ring (14) inner wall, and when saddle (2) is in the back is taken advantage of the position with before, first bolt (412) with second bolt (422) can respectively with lockhole (43) are aligned in order to insert lockhole (43).

7. A stroller according to claim 6, wherein:

the first elastic piece (411) is arranged between the first bolt (412) and the seat (2), and the second elastic piece (421) is arranged between the first bolt (412) and the second bolt (422);

the first bolt (412) is connected with the second bolt (422) in a sliding mode, a retreating block (4221) protruding towards the first bolt (412) is arranged on the second bolt (422), and a strip-shaped inserting groove (4121) formed in the direction of inserting the first bolt (412) into the lock hole (43) is formed in the first bolt (412);

the retreat block (4221) is inserted in the slot (4121) and can move along the extension direction of the slot (4121) to allow the first bolt (412) and the second bolt (422) to move away from each other and to be alternatively inserted into the lock hole (43), and allow the first bolt (412) and the second bolt (422) to move towards each other to both exit the lock hole (43).

8. A stroller according to claim 6, further comprising:

the first transmission mechanism (46) is in transmission connection between the push rod (3) and the first bolt (412);

the second transmission mechanism (47) is in transmission connection between the push rod (3) and the second bolt (422);

when the push rod (3) rotates from the rear side of the seat (2) to the front side of the seat (2), the first transmission mechanism (46) and the second transmission mechanism (47) can be driven forward and backward respectively, so that the second lock tongue (422) moves out of the lock hole (43) and the first lock tongue (412) is allowed to be inserted into the lock hole (43);

when the push rod (3) rotates from the front side of the seat (2) to the rear side of the seat (2), the first transmission mechanism (46) and the second transmission mechanism (47) can be driven reversely and positively respectively, so that the first bolt (412) moves out of the lock hole (43), and the second bolt (422) is allowed to be inserted into the lock hole (43).

9. The stroller of claim 8, wherein the first transmission mechanism (46) comprises:

a first driving block (461) capable of driving the first bolt (412) to exit the lock hole (43) when moving in a first direction;

a third elastic member (462) for resetting the first driving block (461) to allow the first latch tongue (412) to be inserted into the latch hole (43); and

a first traction part (463) which is connected between the first driving block (461) and the push rod (3) in a transmission way;

when the push rod (3) rotates from the front side of the seat (2) to the rear side of the seat (2), the first driving block (461) can be pulled to move along a first direction by the first pulling part (463); when the push rod (3) rotates from the rear side of the seat (2) to the front side of the seat (2), the first driving block (461) can be released by the first pulling part (463) to reset the first driving block (461).

10. A stroller according to claim 9, characterized in that the second transmission mechanism (47) comprises:

a safety seat (471) slidably connected to the seat (2);

a fourth elastic member (472) for applying a pressure to the safety seat (471) to move the safety seat (471) into a reset path of the first driving block (461) so as to limit the reset of the first driving block (461);

a second drive block (473) capable of driving the safety catch (471) out of a reset path of the first drive block (461) when moving in a second direction;

a fourth elastic member (472) for resetting the second driving block (473) to allow the safety seat (471) to move into a reset path of the first driving block (461);

a second traction part (475) which is in transmission connection between the second driving block (473) and the push rod (3);

when the push rod (3) rotates from the rear side of the seat (2) to the front side of the seat (2), the second driving block (473) can be pulled to move along a second direction by the second pulling part (475); when the push rod (3) rotates from the front side of the seat (2) to the rear side of the seat (2), the second driving block (473) can be released by the first traction part (463) to reset the second driving block (473).

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