CN213735148U

CN213735148U - Folding structure of baby carriage

Info

Publication number: CN213735148U
Application number: CN202022899272.3U
Authority: CN
Inventors: 张发辉
Original assignee: Zhongshan Tongxin Daily Products Co ltd
Current assignee: Zhongshan Tongxin Daily Products Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-07-20
Anticipated expiration: 2030-12-04

Abstract

The utility model discloses a children's shallow beta structure, the utility model provides a but area lock, one hand unblock, stable firm, easy operation, folding back small, the high children's shallow beta structure of security. The utility model comprises a seat and a support, wherein the support comprises an inclined telescopic push rod and a support rod arranged in an X shape with the push rod, the lower end of the push rod is rotated and is connected with an underframe in a sliding way, the tail part of the seat is rotated and connected with the middle part of the push rod, the lower end of the support rod is rotated and connected with the rear part of the underframe, the middle part of the support rod is provided with a support shaft, the support shaft is pressed on the push rod from top to bottom and is in separable contact with the push rod, the top end of the support rod is slidably and rotatably connected with the lower part of the seat, and a sliding lock is arranged between the top end of the support rod and the lower part of the seat; when the stroller is in the unfolded state, the sliding lock locks the top end of the push rod and simultaneously locks the seat, the push rod, the support rod and the underframe. The utility model is suitable for a children's shallow.

Description

Folding structure of baby carriage

[ technical field ] A method for producing a semiconductor device

The utility model relates to a handcart technical field especially relates to a children's shallow beta structure.

[ background of the invention ]

For the transportation, the storage and carrying of making things convenient for children's shallow, most children's shallow is beta structure, and beta structure of the foldable children's shallow on the existing market is mostly such single structures such as flexible, slip, rotation, has following problem:

1. due to the limitation of the folding structure of the stroller, folding operation is often performed by matching two hands when the stroller is folded, but people can hold a child or hold other objects in the hands when the stroller is folded, so that the operation is inconvenient;

2. the folding structure is unreasonable, the friction force of the matching position is large, the structure is fragile, the folding is labor-consuming, and the folding is difficult and easy to damage;

3. because the folding structure is not provided with a folding lock, safety problems are easily caused, for example, when a child sits on the seat, the seat is folded accidentally, and the child is injured;

4. the folding structure of the cart is imperfect, the volume is still larger after folding, the cart occupies space, and the cart is poor in portability;

5. the folding of the cart is complex, and the cart can be folded in multiple steps, thereby wasting time and labor.

The present invention is made based on such a situation.

[ Utility model ] content

The utility model aims at overcoming the defects of the prior art, providing a child cart folding structure which is provided with a lock, can be unlocked by a single hand, is stable and firm, is easy to operate, and has small volume and high safety after being folded.

The utility model discloses a realize through following technical scheme:

a folding structure of a children handcart is suitable for children trolleys and comprises a seat and a support, wherein the support comprises an inclined telescopic push rod, the support further comprises a support rod which is arranged in an X shape with the push rod and used for supporting the seat, the lower end of the push rod is rotatably and slidably connected with an underframe with wheels, the tail of the seat is rotatably connected to the middle of the push rod, the lower end of the support rod is rotatably connected to the rear part of the underframe, a support shaft is arranged in the middle of the support rod, the support shaft is pressed on the push rod from top to bottom and is in separable contact with the push rod, the top end of the support rod is slidably and rotatably connected to the lower part of the seat, and a sliding lock used for limiting the top end of the support rod to slide forwards is arranged between the top end of the support rod and the lower part of the seat; when the stroller is in the unfolded state, the sliding lock locks the top end of the push rod and simultaneously locks the seat, the push rod, the support rod and the underframe.

According to the folding structure of the children's cart, the top end of the supporting rod is connected with the sliding shaft, and the side face of the seat is provided with the first sliding groove which is arranged along the front-back direction and used for the sliding shaft to be inserted and slide back and forth in the sliding groove.

According to the folding structure of the stroller, the sliding lock is arranged at the rear part of the first sliding groove and comprises a lock head part and a lock tail part, the front end of the lock head part is in an inverted hook shape capable of hooking the sliding shaft to limit the sliding of the sliding shaft forwards, a first spring for downwards jacking the front part of the lock head part is arranged between the upper part of the front part of the lock head part and the seat, and the middle part of the lock head part is rotatably connected to the side surface of the seat; the lock tail part is in a lever shape with the middle part rotatably connected to the side surface of the seat, and the front end of the lock tail part is pressed on the rear end of the lock head part from top to bottom.

According to the folding structure of the stroller, the side surface of the seat is further provided with the unlocking device, the unlocking device comprises a second sliding groove which is inwards concave from the side surface of the seat in the left-right direction, a locking block which can slide in the second sliding groove is arranged in the second sliding groove, and a protruding part is arranged at the lower part of the locking block; when the locking piece slides outwards, the protruding part can slide to the upper part of the lock tail part and is pressed against the rear part of the rotary connection part of the lock tail part and the side surface of the seat, so that the rotation of the tail end of the lock tail part upwards and the rotation of the front end downwards are limited.

According to the folding structure of the baby stroller, a second spring for pushing the locking block outwards is arranged between the locking block and the second sliding groove.

According to the folding structure of the children's cart, the left side and the right side of the seat are respectively provided with the first sliding groove, the left end and the right end of the sliding shaft are respectively inserted into the left first sliding groove and the right first sliding groove, the rear part of each first sliding groove is respectively provided with the sliding lock, and an unlocking device is arranged above only one sliding lock; and a connecting rod for transmission is fixedly connected between the lock tail part of the left side sliding lock and the lock tail part of the right side sliding lock.

According to the folding structure of the children's cart, the sliding frame is arranged between the lower end of the push rod and the bottom frame, the bottom frame comprises the sliding rods in the front-back direction, the lower end of the push rod is rotatably connected to the sliding frame, and the sliding frame is slidably connected to the sliding rods.

According to the folding structure of the stroller, the stabilizing clamp which can support the stroller between the stroller and the support rod is arranged between the stroller tail and the support rod, the stabilizing clamp comprises the elastic clamp with the downward opening, the upper end of the stabilizing clamp is fixed below the stroller tail, and when the stroller is in the unfolding state, the elastic clamp at the lower end of the stabilizing clamp is pressed down and clamped on the support rod.

Compared with the prior art, the utility model discloses there is following advantage:

1. the utility model relates to a children's shallow beta structure is applicable to children's handcart, when children's handcart expansion state, the sliding lock can lock seat, push rod, bracing piece and chassis four when pinning the push rod top. The folding structure of the children's cart can ensure that the unfolded state is locked firmly, stably and safely; secondly, safety accidents caused by accidental folding can be avoided; thirdly, the folding of the folding bicycle is simple and convenient, the sliding lock can be operated, and the sliding lock can be opened or closed by one hand.

2. The utility model discloses a children's shallow beta structure, the back shaft from last down press on the push rod and with push rod detachable contact, and need not articulate, the structure is simpler like this, and it is also more convenient when the maintenance is dismantled simultaneously, in addition because the back shaft with the power that the junction of push rod bore is great, and inseparable between the two is easy to be damaged, and the back shaft from last down press the connected mode of this kind of disconnect-type on the push rod can reduce wear, increase of service life.

[ description of the drawings ]

The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:

fig. 1 is a perspective view of the present invention;

FIG. 2 is a simplified schematic diagram of the present invention;

fig. 3 is an exploded view of the present invention.

[ detailed description ] embodiments

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

A stroller folding structure, as shown in fig. 1-3, suitable for use on a stroller, comprises a seat 1 and a frame 2, the bracket 2 comprises a tilted telescopic push rod 21, the bracket 2 also comprises a support rod 22 which is arranged in an X shape with the push rod 21 and is used for supporting the seat 1, the lower end of the push rod 21 is rotatably and slidably connected with an underframe 23 with wheels, the tail part of the seat 1 is rotatably connected with the middle part of the push rod 21, the lower end of the support rod 22 is rotatably connected to the rear part of the bottom frame 23, a support shaft 221 is arranged in the middle of the support rod 22, the support shaft 221 is pressed against the push rod 21 from above to below and is separably contacted with the push rod 21, the top end of the support rod 22 is connected to the lower part of the seat 1 in a sliding and rotating manner, and a sliding lock 3 for limiting the forward sliding of the top end of the support rod 22 is arranged between the top end of the support rod 22 and the lower part of the seat 1; when the stroller is unfolded, the slide lock 3 locks the top end of the push rod 21 and simultaneously locks the seat 1, the push rod 21, the support rod 22 and the bottom frame 23. The supporting shaft 221 and the push rod 21 can be in separable contact without being hinged, so that the structure is simpler, the maintenance and the disassembly are more convenient, in addition, the force borne by the joint of the supporting shaft 221 and the push rod 21 is larger, the inseparable connection between the supporting shaft 221 and the push rod 21 is easy to damage, and the separated connection mode that the supporting shaft 221 is pressed on the push rod 21 from top to bottom can reduce the abrasion and prolong the service life.

When the stroller is unfolded, the sliding lock 3 locks the top end of the supporting rod 22 to limit the forward sliding on the seat 1, and then the seat 1, the push rod 21, the supporting rod 22 and the chassis 23 are locked, so that the stroller cannot be folded. Therefore, the folding structure of the children's cart with the sliding lock 3 can ensure that the unfolded state is locked firmly, stably and safely; secondly, safety accidents caused by accidental folding of the seat can be avoided; thirdly, the folding is simple and convenient when the bicycle is folded, and only the sliding lock 3 is operated.

When the child stroller needs to be folded, the operation is simple, the sliding lock 3 is operated only to release the top end of the supporting rod 22, the top end of the supporting rod 22 can slide forwards on the seat 1, at the moment, the lower end of the push rod 21 can rotate downwards on the bottom frame 23 and slide forwards, the lower end of the supporting rod 22 rotates downwards around the bottom frame 23, the tail of the seat 1 can rotate downwards around the push rod 21, and therefore the child stroller is folded downwards.

Specifically, the top end of the support rod 22 is connected with a sliding shaft 222, and the connection mode is preferably a rotary connection: the support rod 22 has a shaft hole at the top end thereof, and the sliding shaft 222 is inserted into the shaft hole and rotated therein. The seat 1 is provided at a side thereof with a first slide groove 11 arranged in the front-rear direction, into which the slide shaft 222 is inserted and slides back and forth.

Specifically, the slide lock 3 is disposed at the rear portion of the first sliding groove 11, the slide lock 3 includes a lock head portion 31 and a lock tail portion 32, the front end of the lock head portion 31 is in an inverted hook shape capable of hooking the slide shaft 222 to limit the slide forward, and a first spring 33 for pressing the front portion of the lock head portion 31 downward is disposed between the upper front portion of the lock head portion 31 and the seat 1, so that the slide shaft 222 is normally locked by the slide lock 3. The middle part of the lock head part 31 is rotationally connected with the side surface of the seat 1; the lock tail part 32 is in a lever shape with the middle part rotatably connected to the side surface of the seat 1, and the front end of the lock tail part 32 is pressed on the rear end of the lock head part 31 from top to bottom. The tail end of the lock tail 32 is preferably provided with a handle. When the handle is pulled up by hand, the front end of the latch tail 32 presses down the rear end of the latch head 31, and the front end of the latch head 31 is tilted up, thereby releasing the sliding shaft 222.

Specifically, the side surface of the seat 1 is further provided with an unlocking device 4, the unlocking device 4 comprises a second sliding groove 12 which is recessed inwards from the side surface of the seat 1 in the left-right direction, a locking block 41 which can slide in the second sliding groove 12 is arranged in the second sliding groove, and a convex part is arranged at the lower part of the locking block 41; when the locking block 41 slides outwards, the protruding part can slide to the upper side of the lock tail part 32 and press against the rear part of the rotary joint of the lock tail part 32 and the side surface of the seat 1, so that the upward rotation and the downward rotation of the front end of the lock tail part 32 are limited. When the lock needs to be unlocked, the lock block 41 is pressed inwards by hand, the lock block 41 slides inwards and is separated from the lock tail 32, the handle at the tail end of the lock tail 32 is pulled upwards, and the lock tail 32 can rotate upwards at the tail end and downwards at the front end. The unlocking device 4 functions as a safety lock, and safety accidents caused by the accidental unlocking of the sliding lock 3 are avoided. In addition, pulling the handle at the tail end of the lock tail 32 upward by hand and pressing the lock block 41 inward can be performed by one hand, and when holding the handle at the tail end of the lock tail 32 by hand, the ring finger can reach and press the lock block 41 inward.

Specifically, a second spring 42 for pushing the lock block 41 outward is provided between the lock block 41 and the second chute 12.

Specifically, the left side and the right side of the seat 1 are respectively provided with a first sliding chute 11, the left end and the right end of the sliding shaft 222 are respectively inserted into the left first sliding chute 11 and the right first sliding chute 11, the rear part of each first sliding chute 11 is respectively provided with a sliding lock 3, and an unlocking device 4 is arranged above only one sliding lock 3; a connecting rod 34 for transmission is fixedly connected between the lock tail 32 of the left side sliding lock 3 and the lock tail 32 of the right side sliding lock 3. The pair of first sliding chutes 11 and the corresponding pair of sliding locks 3 are symmetrically arranged, so that the structure is more stable and firm, and the operation is more labor-saving. Meanwhile, the connecting rod 34 can unlock the unlocking device 4 and the sliding lock 3 by a single hand without two hands, and the operation is simple and convenient.

Specifically, a sliding frame 231 is arranged between the lower end of the push rod 21 and the bottom frame 23, the bottom frame 23 comprises a sliding rod 232 in the front-back direction, the lower end of the push rod 21 is rotatably connected to the sliding frame 231, and the sliding frame 231 is slidably connected to the sliding rod 232. Therefore, the lower end of the push rod 21 can slide and be rotatably connected to the bottom frame 23, the folding is convenient, and the volume is small after the folding.

Specifically, be equipped with between seat 1 afterbody and the bracing piece 22 and to play the firm clamp 5 of supporting role between the two, firm clamp 5 includes the downward elastic clamp of opening, firm clamp 5 upper end is fixed below seat 1 afterbody, and when the shallow of children expandes the state, the elastic clamp of firm clamp 5 lower extreme pushes down and presss from both sides on bracing piece 22. Thus, when the stroller is in the open state, the stabilizing clip 5 is supported between the seat 1 and the support rod 22, and the structure is more stable and reliable.

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. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. 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

1. The utility model provides a children's shallow beta structure, is applicable to children's handcart, its characterized in that: comprises a seat (1) and a bracket (2), wherein the bracket (2) comprises an inclined telescopic push rod (21), the bracket (2) also comprises a supporting rod (22) which is arranged in an X shape with the push rod (21) and is used for supporting the seat (1), the lower end of the push rod (21) is rotatably and slidably connected with an underframe (23) with wheels, the tail part of the seat (1) is rotatably connected with the middle part of the push rod (21), the lower end of the support rod (22) is rotatably connected with the rear part of the bottom frame (23), a support shaft (221) is arranged in the middle of the support rod (22), the support shaft (221) is pressed against the push rod (21) from top to bottom and is in separable contact with the push rod (21), the top end of the supporting rod (22) is connected with the lower part of the seat (1) in a sliding and rotating way, a sliding lock (3) for limiting the top end of the supporting rod (22) to slide forwards is arranged between the top end of the supporting rod (22) and the lower part of the seat (1); when the stroller is in the unfolded state, the sliding lock (3) locks the top end of the push rod (21) and simultaneously locks the seat (1), the push rod (21), the support rod (22) and the underframe (23).

2. A stroller folding structure according to claim 1, characterized in that: the top end of the support rod (22) is connected with a sliding shaft (222), and the side surface of the seat (1) is provided with a first sliding groove (11) which is arranged along the front-back direction and used for the sliding shaft (222) to insert and slide back and forth in the sliding groove.

3. A stroller folding structure according to claim 2, characterized in that: the sliding lock (3) is arranged at the rear part of the first sliding groove (11), the sliding lock (3) comprises a lock head part (31) and a lock tail part (32), the front end of the lock head part (31) is in an inverted hook shape capable of hooking the sliding shaft (222) to limit the sliding forward, a first spring (33) used for downwards jacking the front part of the lock head part (31) is arranged between the upper part of the front part of the lock head part (31) and the seat (1), and the middle part of the lock head part (31) is rotatably connected to the side surface of the seat (1); the lock tail part (32) is in a lever shape with the middle part rotatably connected to the side surface of the seat (1), and the front end of the lock tail part (32) is pressed on the rear end of the lock head part (31) from top to bottom.

4. A stroller folding structure according to claim 3, characterized in that: the side surface of the seat (1) is also provided with an unlocking device (4), the unlocking device (4) comprises a second sliding groove (12) which is inwards recessed from the side surface of the seat (1) in the left and right directions, a locking block (41) capable of sliding in the second sliding groove (12) is arranged in the second sliding groove, and the lower part of the locking block (41) is provided with a convex part; when the locking block (41) slides outwards, the protruding part can slide to the upper part of the lock tail part (32) and is pressed against the rear part of the rotary connection part of the lock tail part (32) and the side surface of the seat (1), so that the tail end of the lock tail part (32) is limited to rotate upwards and the front end of the lock tail part rotates downwards.

5. A stroller folding structure according to claim 4, characterized in that: and a second spring (42) for outwards pushing the locking block (41) is arranged between the locking block (41) and the second sliding chute (12).

6. A stroller folding structure according to claim 4, characterized in that: the left side and the right side of the seat (1) are respectively provided with a first sliding chute (11), the left end and the right end of the sliding shaft (222) are respectively inserted into the left first sliding chute and the right first sliding chute (11), the rear part of each first sliding chute (11) is respectively provided with a sliding lock (3), and an unlocking device (4) is arranged above only one sliding lock (3); a connecting rod (34) for transmission is fixedly connected between the lock tail part (32) of the left side sliding lock (3) and the lock tail part (32) of the right side sliding lock (3).

7. A stroller folding structure according to claim 1, characterized in that: a sliding frame (231) is arranged between the lower end of the push rod (21) and the bottom frame (23), the bottom frame (23) comprises a sliding rod (232) in the front-back direction, the lower end of the push rod (21) is rotatably connected onto the sliding frame (231), and the sliding rod (232) is connected with the sliding frame (231) in a sliding mode.

8. A stroller folding structure according to any one of claims 1 to 7, characterized in that: be equipped with between seat (1) afterbody and bracing piece (22) and to play the firm clamp (5) of supporting role between the two, firm clamp (5) are including opening decurrent elastic clamp, firm clamp (5) upper end is fixed below seat (1) afterbody, and works as during the children's shallow expansion state, the elastic clamp of firm clamp (5) lower extreme pushes down and presss from both sides on bracing piece (22).