WO2021103221A1 - 一种车架前后脚组开合机构及儿童安全座椅 - Google Patents

一种车架前后脚组开合机构及儿童安全座椅 Download PDF

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Publication number
WO2021103221A1
WO2021103221A1 PCT/CN2019/126811 CN2019126811W WO2021103221A1 WO 2021103221 A1 WO2021103221 A1 WO 2021103221A1 CN 2019126811 W CN2019126811 W CN 2019126811W WO 2021103221 A1 WO2021103221 A1 WO 2021103221A1
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WO
WIPO (PCT)
Prior art keywords
assembly
rear foot
opening
group
limit
Prior art date
Application number
PCT/CN2019/126811
Other languages
English (en)
French (fr)
Inventor
池瑞伟
肖刚生
刘云周
Original Assignee
浙江博安母婴用品有限公司
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Publication date
Application filed by 浙江博安母婴用品有限公司 filed Critical 浙江博安母婴用品有限公司
Priority to EP19872258.9A priority Critical patent/EP4067208A4/en
Publication of WO2021103221A1 publication Critical patent/WO2021103221A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/12—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor convertible, e.g. into children's furniture or toy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2842—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle adapted to carry the child, when dismounted from the vehicle
    • B60N2/2848—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle adapted to carry the child, when dismounted from the vehicle being convertible or adaptable to a preambulator, e.g. a baby-carriage or a push-chair
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/006—Carriages supporting a rigid seat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2002/2896—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle the child seat being foldable, e.g. to facilitate transport
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2206/00—Adjustable or convertible hand-propelled vehicles or sledges
    • B62B2206/006—Convertible hand-propelled vehicles or sledges

Definitions

  • the present invention belongs to the field of child safety seats, and specifically relates to a front and rear foot assembly opening and closing mechanism of a frame.
  • the present invention also relates to a child safety seat including the above-mentioned front and rear foot assembly opening and closing mechanism of the frame.
  • the existing child safety seats have a single function and are expensive. Ordinary families have to buy child safety seats and child trolleys. This not only increases the economic burden, but also brings a lot of inconvenience to carrying both child safety seats and child trolleys when traveling. .
  • a frame folding mechanism including: a folding control assembly and a front and rear foot rotation assembly;
  • the front and rear leg rotation assembly includes: a first connecting member, a second connecting member arranged on the rear foot, the first The connecting piece and the second connecting piece are coaxially rotatably connected to the seat body, and both the first connecting piece and the second connecting piece are provided with a pin for passing through the first connecting piece and the second connecting piece.
  • the connecting piece forms a position-limiting pin hole.
  • the folding handle pulls the pin through the folding steel wire to pull the pin out of the pin hole of the first connecting piece and the second connecting piece. At this time, the first connecting piece and the second connecting piece can be free. Rotate to fold the front foot assembly and the rear foot assembly, and finally loosen the folding handle, the latch member will be automatically inserted into the latch hole to limit the position under the action of the resilience of the retracting latch spring, and the folding is now completed. Therefore, when the present invention is operated Only need to pull the folding handle, and then rotate the front and rear foot sets, easy to operate.
  • front and rear feet folded on the same side of the previous application may have the defect of unstable engagement between the seat body and the front and rear feet.
  • the present invention aims to provide an opening and closing mechanism for the front and rear legs of the frame, which can drive the rear legs to retract when the front legs are folded, that is, the front legs and the rear legs are folded on both sides of the seat body This solves the problem of unstable engagement between the seat body and the front and rear feet when the front and rear feet are folded on the same side in the prior art.
  • a front and rear leg assembly opening and closing mechanism of a frame includes: a folding control assembly and a front and rear leg rotation assembly.
  • the front and rear leg rotation assembly includes a rotating shaft, which is arranged on a seat body and is used to connect the front leg assembly to the seat body. Rotation connection; rear foot group support rod, used to connect the rear foot group with the seat body; rear foot group rotation support rod, set on the front foot group, used to connect the rear foot group with the front foot group, so that when the front foot group rotates around the axis of rotation Drive the rear foot group to reverse rotation.
  • the opening and closing control assembly includes: a latch member, which is movably arranged on the seat body, and can pass through the front foot group and the rear foot group to form a limit; the folding handle is connected to the latch member through a connecting steel wire to Control the movement of the latch.
  • the end of the front foot assembly is provided with a connecting piece sleeved on the rotating shaft, and the connecting piece is provided with a first opening limit hole and a folding limit hole; the rear foot assembly The upper opening is provided with a second opening limit hole, and when the front rear foot group is opened, the latch member passes through the first opening limit hole and the second opening limit hole to limit the position.
  • a through hole for the rotation shaft to pass through is opened on the connecting piece, and a locking protrusion extends in the through hole toward the center of the circle; a locking position is opened on the rotation shaft in the direction of the center of the circle.
  • a groove, the locking groove and the locking protrusion are matched to drive the rotating shaft to rotate synchronously when the front foot assembly rotates.
  • a limiting groove is provided on the rotating shaft, and a limiting protrusion is extended at the end of the rear foot assembly, and the limiting protrusion matches with the limiting groove to form a limiting position when the rear foot assembly is opened and the front foot assembly When retracting, the rear foot group is started to retract by turning the shaft.
  • the outer periphery of the connecting piece is further provided with a folding limit groove, and the folding limit groove matches with the end of the rear foot group support rod on the rear foot group, so that when the rear foot group is folded, The end of the supporting rod of the rear foot group is clamped into the retracting limit groove to form a limit.
  • the seat body is further provided with a limit rod
  • the connection is provided with an arc-shaped slot
  • the limit rod passes through the arc-shaped slot to limit the rotation angle of the front foot assembly.
  • one end of the rear foot group support rod is rotatably connected to the seat body, and the other end is rotatably connected to the rear foot group; one end of the rear foot group rotation support rod is fixed to the front foot group, and the other end is rotatably connected to the rear foot group .
  • the present invention also provides a child safety seat, including a seat body, a front foot group hinged to the seat body, a rear foot group hinged to the front foot group, and the aforementioned front and rear foot group opening and closing of the frame mechanism.
  • the present invention has the following effects:
  • the opening and closing mechanism of the present invention rotates and retracts the front foot assembly
  • the rear foot assembly can be folded in reverse, that is, the front foot assembly and the rear foot assembly are folded on both sides of the seat body, which solves the problem of the prior art on the same side of the front and rear feet. Folding has the defect that the seat body and the front and rear feet are unstable in engagement.
  • the present invention When the present invention is in the open state, the first opening limit hole and the second opening limit hole are inserted through the plug to form a limit; further limit is formed by the limit slot and the limit protrusion to ensure the open state Stable fit.
  • a limit rod is also provided on the seat body, and an arc-shaped slot is provided on the connecting piece.
  • the limit rod can pass through the arc-shaped slot to limit the rotation angle of the front foot assembly.
  • Figure 1 is an exploded view of a child safety seat in an embodiment of the invention
  • Figure 2 is a side view of the child safety seat in an open state in the embodiment of the present invention.
  • Figure 3 is a partial enlarged view of A in Figure 2;
  • Figure 4 is another side view of the child safety seat in an open state in the embodiment of the present invention.
  • Figure 5 is a view of the folded state of the child safety seat in the embodiment of the present invention.
  • This embodiment provides a child safety seat, as shown in Figures 1-4, comprising a seat body 1, a front foot group hinged to the seat body 1, a rear foot group 3 hinged to the front foot group 2, and a frame front foot Group opening and closing mechanism.
  • the seat body 1 is an existing product, and its structure is not specifically limited.
  • the frame folding mechanism includes: a folding control assembly and a front and rear foot rotation assembly.
  • the folding control assembly includes: a pin 4 and a folding handle 401.
  • the bolt 4 is horizontally movably arranged on the seat body 1 and can pass through the front foot group 2 and the rear foot group 3 to form a limit.
  • the latch member 4 is connected to the folding handle 401 by a connecting steel wire 402.
  • the folding handle 401 is rotatably arranged on the surface of the seat body 1 through a pin 404 through which a torsion spring 403 is inserted.
  • the folding handle 401 Two locks 405 are also provided on the top through a pin 404, which is used to prevent children from directly pulling the retracting handle 401 and causing the car to be retracted.
  • the front and rear foot rotation assembly includes: a rotation shaft 5, a rear foot group support rod 501, and a rear foot group rotation support rod 502.
  • the rotating shaft 5 is arranged on the seat body 1 for hingedly connecting the front foot assembly 2 to the seat body 1. Specifically, the rotating shaft 5 extends out of one end of the seat body 1. It is installed on the connecting member 6 described later.
  • the bottom end of the rear foot group support rod 501 is rotatably connected to the rear foot group 3, and the top end is rotatably connected to the rear of the seat body 1.
  • the top end of the rear foot group support rod 501 is connected to the seat body
  • the right side of 1 is used to connect the rear foot group 3 with the seat body 1.
  • the bottom end of the rear foot group support rod 501 is rotatably connected with the rear foot group 3 through rivets, and the top end is rotatably connected with the seat body 1 through a screw rod, but the rotational connection method is not limited to this.
  • the rear foot group rotation support rod 502 is arranged on the front foot group 2, and the right end of the rear foot group rotation support rod 502 is rotatably connected to the rear foot group 3, and is used to articulate the rear foot group 3 and the front foot group 2.
  • the rear foot group in this embodiment rotates
  • the support rod 502 provides the rotation force of the rear foot group 3, and the connection between the rear foot group support rod 501 and the rear foot group 3 is a rotation fulcrum, so that when the front foot group 2 rotates around the rotation axis 5, the rear foot group 3 rotates in the reverse direction.
  • the top of the front foot set 2 is provided with a connecting piece 6.
  • the connecting piece 6 is a disc structure, and the center of the connecting piece 6 is provided for the rotation shaft 5 to pass through.
  • the connecting member 6 is sleeved on the rotating shaft 5 to realize the hinged connection between the front leg assembly 2 and the seat body 1 through the through hole.
  • a locking protrusion 601 extends in the direction of the center of the through hole, and the rotation shaft 5 is opened in the direction of the axis center.
  • the detent groove 5-1 matches the detent protrusion 601, that is, the detent protrusion 601 is inserted into the detent groove 5-1, so that the current pin set 2 is opened/retracted The timing will drive the rotating shaft 5 to rotate synchronously.
  • locking protrusions 601 and locking recesses 5-1 there are multiple locking protrusions 601 and locking recesses 5-1, and the locking protrusions 601 correspond to the locking recesses 5-1 one-to-one, and the locking protrusions 601 and the locking recesses 5-1 are one-to-one.
  • the grooves 5-1 are evenly distributed to ensure the smoothness of rotation.
  • the rotation shaft 5 is also provided with a limiting groove 5-2, and the top end of the rear foot group 3 extends a limiting protrusion 301.
  • the limiting protrusion 301 is stuck in the limiting protrusion 301.
  • the rear foot group 3 can be restricted.
  • the front foot assembly 2 When the front foot assembly 2 is rotated to fold, the front foot assembly 2 rotates to drive the connecting member 6 to rotate, and the connecting member 6 drives the rotating shaft 5 to rotate synchronously through the cooperation of the locking protrusion 601 and the locking groove 5-1, and the rotating shaft 5 is one Rotation will push the limit protrusion 301 of the rear foot group 3 to push the rear foot group 3 counterclockwise, thereby starting the rear foot group 3 to close; the current foot group 2 continues to rotate and close, and the rear foot group rotates the supporting rod 502 to continue to press the rear foot group
  • the top of 3 is downward, so that it rotates counterclockwise around the pivot point, which realizes the reverse rotation of the rear foot group 3 when the front foot group 2 rotates around the rotation axis 5.
  • the connecting member 6 is provided with a first opening limit hole 602, and the rear leg set 3 is provided with a second opening on the top. Open the limit hole 302, as shown in FIGS. 2-3, at this time, the latch member 4 can pass through the first open limit hole 602 and the second open limit hole 302 to limit the position.
  • the connecting member 6 is also provided with a closed limit hole 603, as shown in Figure 4, at this time The pin member 4 passes through the folding limit hole 603 to limit the front leg assembly 2.
  • the outer periphery of the connecting member 6 is also provided with a retractable limit groove 604. As shown in FIG. 5, the retractable limit groove 604 and the rear foot The end of the group support rod 501 located on the front foot group 3 matches, that is, when the frame is folded, the end of the rear foot group support rod 501 is locked into the retracting limit slot 604 to form a limit.
  • the seat body 1 in order to limit the rotation angle of the front foot set 2, as shown in FIG. 3, the seat body 1 is further provided with a limit rod 101, and the connection 6 is provided with an arc-shaped slot 605, so The limiting rod 101 passes through the arc-shaped slot 605 to limit the rotation angle of the forefoot set 2.
  • the angle between the first opening limiting hole 602 and the closing limiting hole 603 is equal to the arc of the arc-shaped slot 605 Match.
  • the working principle of the present invention is: as shown in Figures 2 and 3, when the frame is in the open state, the bolt 4 is inserted into the first opening limit hole 602 and the second opening limit hole 302 to limit the position;
  • first pull the folding handle 401 When setting the feet, first pull the folding handle 401.
  • the folding handle 401 pulls the latch 4 through the folding steel wire 402 to exit from the second opening limit hole 302 and the first opening limit hole 602.
  • the front foot set 2 can be free Rotate.
  • the connecting piece 6 drives the rotating shaft 5 to rotate synchronously.
  • the rotating shaft 5 rotates
  • the top of the rear leg set 3 is pushed down and counterclockwise, and the front leg set 2 is continued to rotate to close the front leg set 2, and the rear leg set rotates
  • the support rod 502 continues to press the top of the rear foot group 3 downward, thereby rotating counterclockwise around the pivot point, realizing the synchronous folding of the front foot group 2 and the rear foot group 3.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)

Abstract

一种车架前后脚开合机构包括：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：设置在座椅本体（1）上用于将前脚组（2）与座椅本体转动连接的转动轴（5）；用于将后脚组（3）与座椅本体连接的后脚组支撑杆（501）；设置在前脚组上用于将后脚组与前脚组连接的后脚组转动支杆（502），以在前脚组绕转动轴转动时后脚组反向转动。该开合机构在前脚组转动收合时，后脚组能够反向收合，使前脚组和后脚组收合在座椅本体的两侧，解决了现有技术中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。还涉及一种儿童安全座椅，其包括座椅本体、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。

Description

一种车架前后脚组开合机构及儿童安全座椅 技术领域
本发明属于儿童安全座椅领域，具体涉及一种车架前后脚组开合机构，另外，本发明还涉及一种包括上述车架前后脚组开合机构的儿童安全座椅。
背景技术
现有的儿童安全座椅功能单一且价格昂贵，普通家庭既要购买儿童安全座椅，还要购买儿童手推车，不仅增加经济负担，并且出行时同时携带儿童安全座椅和儿童手推车会造成诸多不便。
为此，申请人的在先申请(201921078937.5)中提供了一种车架收合机构，包括：收合控制组件和前后脚旋转组件；所述收合控制组件包括插销件、通过连接钢线与所述插销件连接的收合拉手、以及套设在所述插销件上的收合插销弹簧；所述前后脚旋转组件包括：第一连接件、设置在后脚第二连接件，所述第一连接件和第二连接件同轴可转动连接在座椅本体上，所述第一连接件和第二连接件上均开设有用于供所述插销件穿过以对第一连接件和第二连接件形成限位的插销孔。收合时，先拉动收合拉手，收合拉手通过收合钢线拉动插销件从第一连接件和第二连接件的插销孔中脱出，此时第一连接件和第二连接件可以自由转动，从而将前脚组和后脚组收合，最后松开收合拉手，插销件会在收合插销弹簧的回弹力作用下自动插入插销孔中限位，至此收合完毕，因此本发明操作时仅需拉动收合拉手，再转动前后脚组即可，操作方便。
但是该在先申请的前后脚同侧收合，可能会存在座椅本体与前后脚卡合不稳定的缺陷。
发明内容
基于上述背景问题，本发明旨在提供一种车架前后脚组开合机构，前脚组收合时能够带动后脚组反向收合，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。
为达到上述目的，本发明提供的技术方案是：
一种车架前后脚组开合机构，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带动后脚组反向转动。
其中，所述开合控制组件包括：插销件，活动设置在座椅本体上，且能够穿过前脚组和后脚组形成限位；收合拉手，通过连接钢线与所述插销件连接，以控制插销件移动。
在一个实施例中，所述前脚组端部设有套设在所述转动轴上的连接件，所述连接件上开设有第一打开限位孔和收合限位孔；所述后脚组上开设有第二打开限位孔，当前后脚组打开时，所述插销件穿过第一打开限位孔、第二打开限位孔限位。
在一个实施例中，所述连接件上开设有用于供转动轴穿过的通孔，所述通孔内向圆心方向延伸有卡位凸起；所述转动轴上向轴心方向开设有卡位凹槽，所述卡位凹槽与卡位凸起匹配，以在前脚组转动时带动转动轴同步转动。
优选地，所述转动轴上开设有限位槽，所述后脚组端部延伸有限位凸起，所述限位凸起与限位槽匹配，以在后脚组打开时形成限位并在前脚组收合时通过转动轴启动后脚组收合。
优选地，所述连接件的外周还开设有收合限位槽，所述收合限位槽与所述后脚组支撑杆位于后脚组上的端部相匹配，以使后脚组收合时，所述后脚组支撑杆的端部卡入收合限位槽内形成限位。
在一个实施例中，所述座椅本体上还设有限位杆，所述连接上开设有弧形槽，所述限位杆穿过所述弧形槽以限制前脚组的转动角度。
在一个实施例中，所述后脚组支撑杆的一端与座椅本体转动连接，另一端与后脚组转动连接；所述后脚组转动支杆的一端与前脚组固定，另一端与后脚组转动连接。
为了实现上述目的，本发明还提供一种儿童安全座椅，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、以及上述的车架前后脚组开合机构。
与现有技术相比，本发明具有以下效果：
1、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。
2、本发明处于打开状态时，通过插销件插入第一打开限位孔、第二打开限位孔形成限位；还通过限位槽和限位凸起形成进一步限位，保证了打开状态的卡合稳定。
3、本发明处于收合状态时，通过插销件插入收合限位孔限位，并且通过后脚组支撑杆的端部卡入收合限位槽内形成进一步限位，保证了收合状态的卡合稳定。
4、本发明在座椅本体上还设置了限位杆，在连接件上开设了弧形槽，限位杆穿过弧形槽可以对前脚组的转动角度进行限位。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍。
图1为本发明实施例中儿童安全座椅的爆炸图；
图2为本发明实施例中儿童安全座椅打开状态的侧视图；
图3为图2中A处的局部放大图；
图4为本发明实施例中儿童安全座椅打开状态的另一侧视图；
图5为本发明实施例中儿童安全座椅的收合状态图；
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“中心”、“顶”、“底”、“左”、“右”、“竖直”、“水平”、“内”、“外”、“前”、“后”等指示的方位或位置关系为基于说明书附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。另需说明的是，本发明的儿童座椅是0+组的座椅，使用时大人面对小孩推车。
本实施例提供一种儿童安全座椅，如图1-4所示，包括座椅本体1、与座椅本体1铰接的前脚组2、与前脚组2铰接的后脚组3、以及车架前脚组开合机构。其中，所述座椅本体1为现由产品，其结构不做具体限制。
在实施例中，如图1所示，所述车架收合机构包括：收合控制组件和前后脚旋转组件。所述收合控制组件包括：插销件4和收合拉手401。
所述插销件4水平活动设置在座椅本体1上，可以穿过前脚组2、后脚组3形成限位。所述插销件4通过连接钢线402与收合拉手401连接，所述收合拉手401通过穿设有扭簧403的销钉404可转动设置在座椅本体1的表面，所述收合拉手401上还通过销钉404设置有二道锁405，用于防止小孩直接拉收合拉手401导致收车。
在本实施例中，所述前后脚旋转组件包括：转动轴5、后脚组支撑杆501以及后脚组转 动支杆502。
如图1-4所示，所述转动轴5设置在座椅本体1上，用于将前脚组2与座椅本体1铰接，具体的，所述转动轴5延伸出座椅本体1的一端穿设在后述的连接件6上。
所述后脚组支撑杆501的底端转动连接在后脚组3上，顶端转动连接在座椅本体1的后方，以图2和3为例，即后脚组支撑杆501的顶端连接在座椅本体1的右侧，用于将后脚组3与座椅本体1连接。具体的，后脚组支撑杆501的底端与后脚组3通过铆钉转动连接，顶端通过螺杆与座椅本体1转动连接，但是转动连接方式并不局限于此。
所述后脚组转动支杆502的设置在前脚组2上，后脚组转动支杆502的右端与后脚组3转动连接，用于将后脚组3与前脚组2铰接，本实施例的后脚组转动支杆502提供后脚组3转动力，后脚组支撑杆501与后脚组3的连接处为转动支点，以在前脚组2绕转动轴5转动时后脚组3反向转动。
在本实施例中，所述前脚组2顶端设有连接件6，如图1所示，所述连接件6为圆盘结构，且连接件6的圆心处上开设有用于供转动轴5穿过的通孔，连接件6套设在所述转动轴5上，以实现前脚组2与座椅本体1的铰接。
为了实现前脚组2绕转动轴5转动时后脚组3反向转动，如图3所示，所述通孔内向圆心方向延伸有卡位凸起601，所述转动轴5上向轴心方向开设有卡位凹槽5-1，所述卡位凹槽5-1与卡位凸起601匹配，即卡位凸起601插入卡位凹槽5-1内，这样当前脚组2打开/收合时会带动转动轴5同步转动。本实施例中的卡位凸起601和卡位凹槽5-1均设有多个，且卡位凸起601与卡位凹槽5-1一一对应，卡位凸起601和卡位凹槽5-1均匀分布，保证转动的平稳性。
进一步的，所述转动轴5上还开设有限位槽5-2，所述后脚组3的顶端延伸有限位凸起301，当前后脚组处于打开状态时，所述限位凸起301卡于限位槽5-2内，可以对后脚组3形成限位。当转动前脚组2进行收合时，前脚组2转动带动连接件6转动，连接件6通过卡位凸起601与卡位凹槽5-1的配合带动转动轴5同步转动，转动轴5一转动就会推动后脚组3的限位凸起301，使后脚组3逆时针推动，从而启动后脚组3收合；当前脚组2继续转动收合，后脚组转动支杆502继续压动后脚组3的顶部向下，从而绕转动支点处逆时针转动，即实现了前脚组2绕转动轴5转动时后脚组3反向转动。
当车架处于打开状态时，为了将前后脚组限定在打开位置，如图1所示，所述连接件6上开设有第一打开限位孔602，所述后脚组3顶部开设有第二打开限位孔302，如图2-3所示，此时所述插销件4可以穿过第一打开限位孔602、第二打开限位孔302限位。
当车架处于收合状态时，为了将前后脚组限定在收合位置，如图1所示，所述连接件6上还开设有收合限位孔603，如图4所示，此时插销件4穿过收合限位孔603对前脚组2限位。
为了对后脚组3进一步限位，如图1所示，所述连接件6的外周还开设有收合限位槽604，如图5所示，所述收合限位槽604与所述后脚组支撑杆501位于前脚组3上的端部相匹配，即当车架收合时，后脚组支撑杆501的端部卡入收合限位槽604内形成限位。
在本实施例中，为了对前脚组2的转动角度进行限制，如图3所示，所述座椅本体1上还设有限位杆101，所述连接6上开设有弧形槽605，所述限位杆101穿过所述弧形槽605以限制前脚组2的转动角度，第一打开限位孔602和收合限位孔603之间的夹角与所述弧形槽605的弧度相匹配。
在本实施例中，由于后脚组3、前脚组2已经在申请人的在先申请(201921078937.5)中进行详细记载，本实施例将不再赘述。
本发明的工作原理是：如图2和3所示，当车架处于打开状态时，插销件4插入第一打开限位孔602、第二打开限位孔302限位；当需要收合前后脚组时，先拉动收合拉手401，收合拉手401通过收合钢线402拉动插销件4从第二打开限位孔302、第一打开限位孔602退出，此时前脚组2可以自由转动。
当转动前脚组2向上顺时针转动时，连接件6带动转动轴5同步转动，转动轴5一转动则推动后脚组3的顶部向下逆时针转动，继续转动收合前脚组2，后脚组转动支杆502继续压动后脚组3的顶部向下，从而绕转动支点处逆时针转动，实现了前脚组2和后脚组3的同步收合。
当前后脚组收合至图5状态时，后脚组支撑杆501与后脚组3的连接处卡入收合限位槽604内形成限位，然后松开收合拉手401，插销件4在插销弹簧的作用下插入收合限位孔603内，从而将前后脚组限位在收合位置。
当需要将前后脚打开时，再次拉动收合把手401使插销件4从收合限位孔603内推出，此时转动后脚组3即可。
应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。

Claims (9)

  1. 一种车架前后脚组开合机构，包括：开合控制组件和前后脚旋转组件，其特征在于，所述前后脚旋转组件包括：
    转动轴，设置在座椅本体上，用于将后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带动后脚组反向转动。
  2. 根据权利要求1所述的车架前后脚组开合机构，其特征在于，所述开合控制组件包括：
    插销件，活动设置在座椅本体上，且能够穿过前脚组和后脚组形成限位；
    收合拉手，通过连接钢线与所述插销件连接，以控制插销件移动。
  3. 根据权利要求2所述的车架前后脚组开合机构，其特征在于，所述前脚组端部设有套设在所述转动轴上的连接件，所述连接件上开设有第一打开限位孔和收合限位孔；
    所述后脚组上开设有第二打开限位孔，当前后脚组打开时，所述插销件穿过第一打开限位孔、第二打开限位孔限位。
  4. 根据权利要求3所述的车架前后脚组开合机构，其特征在于，所述连接件上开设有用于供转动轴穿过的通孔，所述通孔内向圆心方向延伸有卡位凸起；
    所述转动轴上向轴心方向开设有卡位凹槽，所述卡位凹槽与卡位凸起匹配，以在前脚组转动时带动转动轴同步转动。
  5. 根据权利要求4所述的车架前后脚组开合机构，其特征在于，所述转动轴上开设有限位槽，所述后脚组端部延伸有限位凸起，所述限位凸起与限位槽匹配，以在后脚组打开时形成限位并在前脚组收合时通过转动轴启动后脚组收合。
  6. 根据权利要求5所述的车架前后脚组开合机构，其特征在于，所述连接件的外周还开设有收合限位槽，所述收合限位槽与所述后脚组支撑杆位于后脚组上的端部相匹配，以使后脚组收合时，所述后脚组支撑杆的端部卡入收合限位槽内形成限位。
  7. 根据权利要求3所述的车架前后脚组开合机构，其特征在于，所述座椅本体上还设有限位杆，所述连接件上开设有弧形槽，所述限位杆穿过所述弧形槽以限制前脚组的转动角度。
  8. 根据权利要求1所述的车架前后脚组开合机构，其特征在于，所述后脚组支撑杆的一端与座椅本体转动连接，另一端与后脚组转动连接；所述后脚组转动支杆的一端与前脚组固 定，另一端与后脚组转动连接。
  9. 一种儿童安全座椅，其特征在于，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、以及权利要求1-8所述的车架前后脚组开合机构。
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