阅读说明：本技术 一种车架前后脚组开合机构及儿童安全座椅 (Frame front and rear foot group opening and closing mechanism and child safety seat ) 是由 池瑞伟 肖刚生 刘云周 于 2019-11-29 设计创作，主要内容包括：本发明提供一种车架前后脚组开合机构及儿童安全座椅,属于儿童座椅领域,包括：收合控制组件和前后脚旋转组件,所述前后脚旋转组件包括：转动轴,设置在座椅本体上,用于将前脚组与座椅本体转动连接；后脚组支撑杆,用于将后脚组与座椅本体连接；后脚组转动支杆,设置在前脚组上,用于将后脚组与前脚组连接,以在前脚组绕转动轴转动时后脚组反向转动。儿童安全座椅包括座椅本体、与座椅本体铰接的前脚组、与所述前脚组铰接的后脚组、以及车架前后脚组开合机构。本发明的开合机构在前脚组转动收合时,后脚组能够反向收合,即前脚组和后脚组收合在座椅本体的两侧,解决了现有技术的前后脚同侧收合存在的座椅本体与前后脚卡合不稳定的缺陷。(The invention provides a frame front and rear foot combination opening and closing mechanism and a child safety seat, belonging to the field of child seats and comprising: receive control assembly and preceding back foot rotating assembly, preceding back foot rotating assembly includes: the rotating shaft is arranged on the seat body and used for rotationally connecting the front foot group with the seat body; the rear foot group supporting rod is used for connecting the rear foot group with the seat body; the rear foot set rotating support rod is arranged on the front foot set and used for connecting the rear foot set with the front foot set so as to enable the rear foot set to rotate reversely when the front foot set rotates around the rotating shaft. The child safety seat comprises a seat body, a front foot group hinged with the seat body, a rear foot group hinged with the front foot group, and a frame front and rear foot group opening and closing mechanism. When the front foot group rotates to be folded, the rear foot group can be reversely folded, namely the front foot group and the rear foot group are folded at two sides of the seat body, so that the defect that the seat body and the front and rear feet are not stably clamped when the front and rear feet are folded at the same side in the prior art is overcome.)

1. The utility model provides a frame front and back foot group opening and shutting mechanism, includes: control assembly and preceding back foot rotating assembly open and shut, its characterized in that, preceding back foot rotating assembly includes:

the rotating shaft is arranged on the seat body and used for rotationally connecting the front foot group with the seat body;

the rear foot group supporting rod is used for connecting the rear foot group with the seat body;

the rear foot set rotating support rod is arranged on the front foot set and used for connecting the rear foot set with the front foot set so as to drive the rear foot set to reversely rotate when the front foot set rotates around the rotating shaft.

2. The frame front and rear foot assembly opening and closing mechanism according to claim 1, wherein the opening and closing control assembly comprises:

the bolt piece is movably arranged on the seat body and can penetrate through the front foot group and the rear foot group to form limiting;

and the folding handle is connected with the bolt piece through a connecting steel wire so as to control the bolt piece to move.

3. The frame front and rear leg assembly opening and closing mechanism according to claim 2, wherein a connecting member sleeved on the rotating shaft is provided at an end of the front leg assembly, and a first opening limiting hole and a closing limiting hole are provided on the connecting member;

the rear foot group is provided with a second opening limiting hole, and when the front rear foot group is opened, the bolt piece penetrates through the first opening limiting hole and the second opening limiting hole for limiting.

4. The front and rear leg assembly opening and closing mechanism of the bicycle frame as claimed in claim 3, wherein the connecting member is provided with a through hole for the rotation shaft to pass through, and a clamping protrusion extends towards the center of the circle in the through hole;

the rotating shaft is provided with a clamping groove towards the axis direction, and the clamping groove is matched with the clamping protrusion so as to drive the rotating shaft to synchronously rotate when the front foot set rotates.

5. The frame front and rear leg assembly opening and closing mechanism according to claim 4, wherein the rotation shaft has a limiting groove, the end of the rear leg assembly extends to a limiting protrusion, and the limiting protrusion is matched with the limiting groove to limit when the rear leg assembly is opened and to start the rear leg assembly to be closed through the rotation shaft when the front leg assembly is closed.

6. The frame front and rear leg assembly opening and closing mechanism according to claim 5, wherein a retraction limiting groove is further formed in the periphery of the connecting member, the retraction limiting groove is matched with the end portion of the rear leg assembly supporting rod located on the rear leg assembly, so that when the rear leg assembly is retracted, the end portion of the rear leg assembly supporting rod is clamped into the retraction limiting groove to form limiting.

7. The frame front and rear leg assembly opening and closing mechanism according to claim 3, wherein a limiting rod is further provided on the seat body, an arc-shaped groove is provided on the connecting member, and the limiting rod passes through the arc-shaped groove to limit the rotation angle of the front leg assembly.

8. The frame front and rear leg assembly opening and closing mechanism according to claim 1, wherein one end of the rear leg assembly support rod is rotatably connected with the seat body, and the other end is rotatably connected with the rear leg assembly; one end of the rear foot set rotating support rod is fixed with the front foot set, and the other end of the rear foot set rotating support rod is rotatably connected with the rear foot set.

9. A child safety seat, comprising a seat body, a front leg set hinged to the seat body, a rear leg set hinged to the front leg set, and the frame front and rear leg set opening and closing mechanism of claims 1-8.

Technical Field

The invention belongs to the field of child safety seats, and particularly relates to a frame front and rear foot combination opening and closing mechanism.

Background

Current child safety seat function singleness and expensive, ordinary family both will purchase child safety seat, still will purchase children's handcart, not only increase economic burden to carry child safety seat and children's handcart simultaneously and can cause a great deal of inconvenience when going on a journey.

To this end, the applicant's prior application (201921078937.5) provides a frame folding mechanism comprising: the folding control component and the front and rear foot rotating components; the folding control assembly comprises a bolt piece, a folding handle connected with the bolt piece through a connecting steel wire and a folding bolt spring sleeved on the bolt piece; the front and rear foot rotating assemblies include: the seat comprises a first connecting piece and a second connecting piece arranged on a rear foot, wherein the first connecting piece and the second connecting piece are coaxially and rotatably connected onto the seat body, and bolt holes for the bolt pieces to penetrate through to limit the first connecting piece and the second connecting piece are formed in the first connecting piece and the second connecting piece. When the folding handle is folded, the folding handle is pulled firstly, the bolt piece is pulled by the folding steel wire to be pulled to be separated from the bolt holes of the first connecting piece and the second connecting piece, at the moment, the first connecting piece and the second connecting piece can rotate freely, so that the front foot group and the rear foot group are folded, and finally the folding handle is loosened, the bolt piece can be automatically inserted into the bolt hole under the resilience of the folding bolt spring to limit, so that the folding is finished.

However, the front and rear legs of the prior application are folded at the same side, and the defect that the seat body is not stably clamped with the front and rear legs may exist.

Disclosure of Invention

Based on the above background problem, the present invention provides a front and rear leg assembly opening and closing mechanism for a vehicle frame, wherein when the front leg assembly is folded, the rear leg assembly can be driven to be folded reversely, that is, the front leg assembly and the rear leg assembly are folded at two sides of the seat body, so as to solve the problem of unstable engagement between the seat body and the front and rear legs when the front leg assembly and the rear leg assembly are folded at the same side in the prior art.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

the utility model provides a frame front and back foot group opening and shutting mechanism, includes: receive control assembly and preceding back foot rotating assembly, preceding back foot rotating assembly includes: the rotating shaft is arranged on the seat body and used for rotationally connecting the front foot group with the seat body; the rear foot group supporting rod is used for connecting the rear foot group with the seat body; the rear foot set rotating support rod is arranged on the front foot set and used for connecting the rear foot set with the front foot set so as to drive the rear foot set to reversely rotate when the front foot set rotates around the rotating shaft.

Wherein, the control assembly that opens and shuts includes: the bolt piece is movably arranged on the seat body and can penetrate through the front foot group and the rear foot group to form limiting; and the folding handle is connected with the bolt piece through a connecting steel wire so as to control the bolt piece to move.

In one embodiment, a connecting piece sleeved on the rotating shaft is arranged at the end part of the front foot set, and a first opening limiting hole and a closing limiting hole are formed in the connecting piece; the rear foot group is provided with a second opening limiting hole, and when the front rear foot group is opened, the bolt piece penetrates through the first opening limiting hole and the second opening limiting hole for limiting.

In one embodiment, the connecting piece is provided with a through hole for the rotating shaft to pass through, and a clamping bulge extends towards the center of a circle in the through hole; the rotating shaft is provided with a clamping groove towards the axis direction, and the clamping groove is matched with the clamping protrusion so as to drive the rotating shaft to synchronously rotate when the front foot set rotates.

Preferably, a limiting groove is formed in the rotating shaft, a limiting protrusion extends from the end of the rear leg assembly, and the limiting protrusion is matched with the limiting groove to limit when the rear leg assembly is opened and start the rear leg assembly to be folded through the rotating shaft when the front leg assembly is folded.

Preferably, the periphery of the connecting piece is further provided with a folding limiting groove, the folding limiting groove is matched with the end part of the rear leg group supporting rod, which is located on the rear leg group, so that when the rear leg group is folded, the end part of the rear leg group supporting rod is clamped into the folding limiting groove to form limiting.

In one embodiment, the seat body is further provided with a limiting rod, the connection part is provided with an arc-shaped groove, and the limiting rod penetrates through the arc-shaped groove to limit the rotation angle of the front leg group.

In one embodiment, one end of the rear foot group supporting rod is rotatably connected with the seat body, and the other end of the rear foot group supporting rod is rotatably connected with the rear foot group; one end of the rear foot set rotating support rod is fixed with the front foot set, and the other end of the rear foot set rotating support rod is rotatably connected with the rear foot set.

In order to achieve the above object, the present invention further provides a child safety seat, which includes a seat body, a front leg assembly hinged to the seat body, a rear leg assembly hinged to the front leg assembly, and the opening and closing mechanism for the front and rear leg assemblies of the frame.

Compared with the prior art, the invention has the following effects:

1. when the front foot group rotates to be folded, the rear foot group can be reversely folded, namely the front foot group and the rear foot group are folded at two sides of the seat body, so that the defect that the seat body and the front and rear feet are not stably clamped when the front and rear feet are folded at the same side in the prior art is overcome.

2. When the invention is in an opening state, the bolt piece is inserted into the first opening limiting hole and the second opening limiting hole to form limiting; still form further spacing through spacing groove and spacing arch, guaranteed that open mode's block is stable.

3. When the foldable rack is in a folded state, the bolt piece is inserted into the folded limiting hole for limiting, and the end part of the rear leg group supporting rod is clamped into the folded limiting groove for further limiting, so that the stable clamping in the folded state is ensured.

4. The invention also provides a limiting rod on the seat body, the connecting piece is provided with an arc-shaped groove, and the limiting rod penetrates through the arc-shaped groove to limit the rotating angle of the front foot set.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.

FIG. 1 is an exploded view of a child safety seat in an embodiment of the present invention;

FIG. 2 is a side view of an open state of a child safety seat in an embodiment of the present invention;

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

FIG. 4 is another side view of an open state of a child safety seat in an embodiment of the present invention;

fig. 5 is a folding state view of the child safety seat according to the embodiment of the present invention;

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings of the specification, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. It should also be noted that the child seat of the present invention is a 0+ set seat, and the adult faces the child stroller when in use.

The present embodiment provides a child safety seat, as shown in fig. 1 to 4, including a seat body 1, a front leg set 2 hinged to the seat body 1, a rear leg set 3 hinged to the front leg set 2, and a frame front leg set opening and closing mechanism. The seat body 1 is a conventional product, and the structure thereof is not particularly limited.

In an embodiment, as shown in fig. 1, the frame folding mechanism includes: a folding control component and a front and back foot rotating component. The folding control assembly comprises: latch member 4 and stow handle 401.

The bolt piece 4 is horizontally and movably arranged on the seat body 1 and can penetrate through the front foot group 2 and the rear foot group 3 to form limiting. The latch piece 4 is connected with a folding handle 401 through a connecting steel wire 402, the folding handle 401 is rotatably arranged on the surface of the seat body 1 through a pin 404 with a torsion spring 403 passing through, and the folding handle 401 is further provided with a secondary lock 405 through the pin 404, so as to prevent a child from directly pulling the folding handle 401 to cause folding.

In this embodiment, the front and rear foot rotating assemblies include: a rotating shaft 5, a rear leg group support rod 501 and a rear leg group rotating support rod 502.

As shown in fig. 1 to 4, the rotating shaft 5 is provided on the seat body 1 for hinging the front leg assembly 2 with the seat body 1, and specifically, one end of the rotating shaft 5 extending out of the seat body 1 is inserted into a connecting piece 6 to be described later.

The bottom end of the rear leg group support rod 501 is rotatably connected to the rear leg group 3, and the top end of the rear leg group support rod 501 is rotatably connected to the rear of the seat body 1, taking fig. 2 and 3 as examples, that is, the top end of the rear leg group support rod 501 is connected to the right side of the seat body 1, and is used for connecting the rear leg group 3 to the seat body 1. Specifically, the bottom end of the rear leg group support rod 501 is rotatably connected to the rear leg group 3 by a rivet, and the top end is rotatably connected to the seat body 1 by a screw, but the rotation connection manner is not limited thereto.

The rear leg group rotation support rod 502 is arranged on the front leg group 2, the right end of the rear leg group rotation support rod 502 is rotatably connected with the rear leg group 3 and used for hinging the rear leg group 3 with the front leg group 2, the rear leg group rotation support rod 502 of the embodiment provides a rear leg group 3 rotating force, and the joint of the rear leg group support rod 501 and the rear leg group 3 is a rotation fulcrum so as to enable the rear leg group 3 to reversely rotate when the front leg group 2 rotates around the rotation shaft 5.

In this embodiment, the top end of the front leg assembly 2 is provided with a connecting piece 6, as shown in fig. 1, the connecting piece 6 is of a disc structure, a through hole for the rotation shaft 5 to pass through is formed in the center of the circle of the connecting piece 6, and the connecting piece 6 is sleeved on the rotation shaft 5 to realize the hinge joint of the front leg assembly 2 and the seat body 1.

In order to realize the reverse rotation of the rear leg assembly 3 when the front leg assembly 2 rotates around the rotating shaft 5, as shown in fig. 3, a position-locking protrusion 601 extends in the through hole towards the center of the circle, a position-locking groove 5-1 is formed in the rotating shaft 5 towards the axis direction, the position-locking groove 5-1 is matched with the position-locking protrusion 601, that is, the position-locking protrusion 601 is inserted into the position-locking groove 5-1, so that the rotating shaft 5 is driven to rotate synchronously when the front leg assembly 2 is opened/closed. In this embodiment, a plurality of the clamping protrusions 601 and the clamping grooves 5-1 are provided, the clamping protrusions 601 correspond to the clamping grooves 5-1 one by one, and the clamping protrusions 601 and the clamping grooves 5-1 are uniformly distributed, so that the rotating stability is ensured.

Furthermore, a limiting groove 5-2 is further formed in the rotating shaft 5, a limiting protrusion 301 extends from the top end of the rear leg assembly 3, and when the front rear leg assembly is in an open state, the limiting protrusion 301 is clamped in the limiting groove 5-2, so that limiting can be formed on the rear leg assembly 3. When the front leg assembly 2 is rotated to fold, the front leg assembly 2 rotates to drive the connecting piece 6 to rotate, the connecting piece 6 drives the rotating shaft 5 to synchronously rotate through the matching of the clamping protrusion 601 and the clamping groove 5-1, and one rotation of the rotating shaft 5 can push the limiting protrusion 301 of the rear leg assembly 3 to enable the rear leg assembly 3 to push anticlockwise, so that the rear leg assembly 3 is started to fold; when the front leg assembly 2 continues to rotate to be folded, the rear leg assembly rotating support rod 502 continues to press the top of the rear leg assembly 3 downwards, so that the front leg assembly 2 rotates around the rotating support rod point counterclockwise, namely, the rear leg assembly 3 rotates reversely when the front leg assembly 2 rotates around the rotating shaft 5.

When the frame is in an open state, in order to limit the front and rear leg assemblies at the open position, as shown in fig. 1, a first open limiting hole 602 is formed in the connecting member 6, and a second open limiting hole 302 is formed in the top of the rear leg assembly 3, as shown in fig. 2-3, at this time, the latch member 4 can pass through the first open limiting hole 602 and the second open limiting hole 302 for limiting.

When the frame is in the folded state, in order to limit the front and rear leg assemblies at the folded position, as shown in fig. 1, a folding limiting hole 603 is further formed in the connecting member 6, as shown in fig. 4, at this time, the latch member 4 passes through the folding limiting hole 603 to limit the front leg assembly 2.

In order to further limit the rear leg assembly 3, as shown in fig. 1, a folding limiting groove 604 is further formed in the periphery of the connecting member 6, as shown in fig. 5, the folding limiting groove 604 is matched with the end portion of the rear leg assembly supporting rod 501 located on the front leg assembly 3, that is, when the frame is folded, the end portion of the rear leg assembly supporting rod 501 is clamped into the folding limiting groove 604 to form limiting.

In this embodiment, in order to limit the rotation angle of the front leg set 2, as shown in fig. 3, the seat body 1 is further provided with a limiting rod 101, the connection 6 is provided with an arc-shaped groove 605, the limiting rod 101 penetrates through the arc-shaped groove 605 to limit the rotation angle of the front leg set 2, and an included angle between the first open limiting hole 602 and the close limiting hole 603 matches with the radian of the arc-shaped groove 605.

In the present embodiment, since the heel set 3 and the forefoot set 2 are already described in detail in the applicant's prior application (201921078937.5), the description of the present embodiment will be omitted.

The working principle of the invention is as follows: as shown in fig. 2 and 3, when the frame is in an open state, the latch member 4 is inserted into the first opening limiting hole 602 and the second opening limiting hole 302 for limiting; when the front and rear leg assemblies need to be folded, the folding handle 401 is pulled first, the folding handle 401 pulls the latch member 4 through the folding steel wire 402 to withdraw from the second opening limiting hole 302 and the first opening limiting hole 602, and at this time, the front leg assembly 2 can rotate freely.

When the front leg group 2 rotates upwards and clockwise, the connecting piece 6 drives the rotating shaft 5 to rotate synchronously, the rotating shaft 5 rotates to push the top of the rear leg group 3 to rotate downwards and anticlockwise, the front leg group 2 is continuously rotated and folded, the rear leg group rotating support rod 502 continuously presses the top of the rear leg group 3 downwards, and therefore the front leg group 2 and the rear leg group 3 are synchronously folded around the rotating support point in an anticlockwise rotating mode.

When the front rear leg assembly is folded to the state shown in fig. 5, the joint of the rear leg assembly support rod 501 and the rear leg assembly 3 is clamped into the folding limiting groove 604 to form a limiting position, and then the folding handle 401 is released, and the latch member 4 is inserted into the folding limiting hole 603 under the action of the latch spring, so that the front and rear leg assemblies are limited to the folding position.

When the front and rear legs need to be opened, the folding handle 401 is pulled again to push the latch piece 4 out of the folding limiting hole 603, and at this time, the rear leg group 3 is rotated.

It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.