WO2023005532A1 - 一种支撑腿定位结构及儿童安全座椅 - Google Patents

一种支撑腿定位结构及儿童安全座椅 Download PDF

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Publication number
WO2023005532A1
WO2023005532A1 PCT/CN2022/101078 CN2022101078W WO2023005532A1 WO 2023005532 A1 WO2023005532 A1 WO 2023005532A1 CN 2022101078 W CN2022101078 W CN 2022101078W WO 2023005532 A1 WO2023005532 A1 WO 2023005532A1
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WO
WIPO (PCT)
Prior art keywords
positioning
supporting leg
positioning member
assembly
structure according
Prior art date
Application number
PCT/CN2022/101078
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English (en)
French (fr)
Inventor
周小林
程飞
杨刚
Original Assignee
宁波宝贝第一母婴用品有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 宁波宝贝第一母婴用品有限公司 filed Critical 宁波宝贝第一母婴用品有限公司
Priority to EP22848139.6A priority Critical patent/EP4292876A1/en
Publication of WO2023005532A1 publication Critical patent/WO2023005532A1/zh

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Classifications

    • 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
    • B60N2/2821—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle having a seat and a base part
    • B60N2/2824—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle having a seat and a base part part of the base being supported by the vehicle frame
    • 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

Definitions

  • the utility model relates to the technical field of child safety seats, in particular to a support leg positioning structure and a child safety seat.
  • support legs are generally provided at the front end of the base, and the support legs can also be stowed away when the child safety seat is not in use.
  • the supporting legs of the existing child safety seat do not have a locking structure, and the supporting legs can also shake freely when the supporting legs are opened, and the supporting legs are not reliable and the safety is low.
  • the utility model firstly provides a supporting leg positioning structure, including an opening and closing positioning assembly, a connecting assembly and a supporting leg hingedly connected with the connecting assembly, and the opening and closing positioning assembly includes mutual Cooperating first positioning piece and second positioning piece, the first positioning piece is movably connected with the connection assembly, one end of the second positioning piece is connected with the support leg, and the other end is hingedly connected with the connection assembly , when the supporting legs are in the open position, the first positioning member and the second positioning member are locked to each other.
  • the second positioning member is provided with a square groove connected with the support leg.
  • connection assembly includes a lower cover and a fixing plate connected to each other, the first positioning member is connected to the lower cover, and the second positioning member is connected to the fixing plate.
  • a return spring is provided between the first positioning member and the lower cover.
  • the first positioning member is provided with a waist-shaped hole
  • the lower cover is provided with a protrusion that movably cooperates with the waist-shaped hole.
  • the second positioning member is connected with a rotating shaft that is rotatably connected with the fixing plate.
  • the second positioning member is provided with a first abutting surface, a second abutting surface and a cam surface disposed between the first abutting surface and the second abutting surface, and the first abutting surface An abutting surface, the second abutting surface and the cam surface respectively abut against the first positioning member when the supporting legs are in different positions.
  • first abutting surface and the second abutting surface are planes perpendicular to each other.
  • the positioning structure of the supporting leg in the utility model is provided with an opening and closing positioning component between the connecting component and the supporting leg, so that the supporting leg can be locked with the connecting component when it is in the open position, that is, the supporting leg
  • the position will not change when it is impacted by a large external force, so that the child safety seat can be effectively supported to ensure the safety of the child; and the opening and closing positioning components are designed to lock each other when the supporting legs are in the open position
  • the first positioning part and the second positioning part, and the first positioning part and the second positioning part are respectively connected with the connection assembly and the support leg, so that the support leg and the connection assembly can be locked with each other.
  • the utility model provides a child safety seat, comprising the above-mentioned support leg positioning structure.
  • the child safety seat of the present invention has the same advantages as the above-mentioned support leg positioning structure over the prior art, and will not be repeated here.
  • Fig. 1 is a cross-sectional view of the supporting leg positioning structure of the embodiment of the present invention when the supporting leg is in a retracted position;
  • Fig. 2 is an enlarged view of part A in Fig. 1;
  • Fig. 3 is a cross-sectional view of the supporting leg positioning structure of the embodiment of the present invention when the supporting leg is transformed from the closed position to the open position;
  • Fig. 4 is an enlarged view of part B in Fig. 3;
  • Fig. 5 is a cross-sectional view of the supporting leg positioning structure of the embodiment of the present invention when the supporting leg is in an open position;
  • Fig. 6 is an enlarged view of part C in Fig. 5;
  • Fig. 7 is a bottom view of the supporting leg positioning structure of the embodiment of the present invention when the supporting leg is transformed from the closed position to the open position;
  • Fig. 8 is an exploded view of the opening and closing positioning assembly of the embodiment of the present invention.
  • Fig. 9 is a structural diagram of the second positioning member of the embodiment of the present invention.
  • Opening and closing positioning assembly 11. First positioning piece; 111. Waist-shaped hole; 12. Second positioning piece; 121. Square slot; 122. First abutment surface; 123. Second abutment surface; 124. 13, return spring; 14, rotating shaft; 2, connection assembly; 21, upper cover; 22, lower cover; 221, boss; 23, fixed plate; 3, support leg.
  • first and second are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • the embodiment of the utility model provides a support leg positioning structure, as shown in Fig. 1, Fig. 2, Fig. 5 and Fig. Leg 3, the opening and closing positioning assembly 1 includes a first positioning piece 11 and a second positioning piece 12 that cooperate with each other, the first positioning piece 11 is movably connected with the connecting assembly 2, and the second positioning piece 12 One end is connected to the supporting leg 3 and the other end is hingedly connected to the connecting assembly 2 .
  • the first positioning member 11 and the second positioning member 12 are locked to each other.
  • the support leg 3 is connected with the base of the child safety seat through the connection assembly 2, one end of the support leg 3 is hinged to the connection assembly 2, and the other end can rotate around the hinge point of the support leg 3 and the connection assembly 2; the support leg 3 It has a retracted position (as shown in Figure 1) and an open position (as shown in Figure 5). When the child safety seat is not in use, the supporting legs 3 are switched to the retracted position. When the child safety seat is installed on the car When in use, the support leg 3 is switched to the open position.
  • the second positioning member 12 is fixedly connected with the supporting leg 3, and when the supporting leg 3 rotates relative to the connecting assembly 2, the second positioning member 12 also rotates synchronously relative to the connecting assembly 2; the second positioning member 12 can push The first positioning part 11 moves relative to the connecting assembly 2, and when the supporting leg 3 is switched to the open position, the second positioning part 12 and the first positioning part 11 are mutually locked, so that the supporting leg 3 is relative to the connecting assembly 2 in the open position. There will be no random shaking; the second positioning member 12 is always in contact with the first positioning member 11 during the rotation process.
  • the opening and closing positioning component 1 is arranged between the connecting component 2 and the supporting leg 3, so that the supporting leg 3 can be locked with the connecting component 2 when it is in the open position, that is, the supporting leg 3
  • the position will not change when it is impacted by a large external force, so that the child safety seat can be effectively supported to ensure the safety of the child;
  • the locked first positioning piece 11 and the second positioning piece 12, and the first positioning piece 11 and the second positioning piece 12 are respectively connected with the connection assembly 2 and the support leg 3, so that the support leg 3 and the connection assembly 2 can be connected to each other Locking, this design is simple in structure, convenient and reliable in operation.
  • the second positioning member 12 is provided with a square groove 121 connected to the support leg 3 .
  • the second positioning member 12 is a sheet structure, the number is two, and the two second positioning members 12 are respectively arranged on both sides of the top of the supporting leg 3, so that the mutual distance between the second positioning member 12 and the first positioning member 11 The locking effect is better; both sides of the top of the supporting leg are provided with square projections (not shown) that cooperate with the square groove 121, so that the second positioning member 12 and the supporting leg 3 are fixedly connected to each other, so as to ensure that the supporting leg 3 and The second positioning member 12 can rotate synchronously.
  • the connecting assembly 2 includes a lower cover 22 and a fixing plate 23 connected to each other, the first positioning member 11 is connected to the lower cover 22 , and the second positioning The piece 12 is connected to the fixing plate 23 .
  • the lower cover 22 is a chamber for the first positioning member 11 to be installed, and the lower cover 22 is provided with a through hole for the second positioning member 12 to pass through, and the chamber communicates with the through hole for convenience.
  • the first positioning part 11 and the second positioning part 12 cooperate with each other; the lower cover 22 is preferably a plastic part, and the fixing plate 23 is preferably a metal part, which can not only ensure that the overall weight of the child safety seat is as light as possible, but also ensure the resistance of the connecting assembly 2.
  • connection assembly 2 also includes an upper cover 21, the upper cover 21 and the lower cover 22 are fixedly connected to each other by fasteners; the first positioning member 11 is flexibly connected to the lower cover 22, and the second positioning member 12 is connected to the fixed plate through a pin 23 is hingedly connected, and the second positioning member 12 can push the first positioning member 11 to move during the rotation process.
  • a return spring 13 is provided between the first positioning member 11 and the lower cover 22 .
  • the return spring 13 is a compression spring
  • the lower cover 22 is provided with a first spring installation column
  • the first positioning member 11 is provided with a second spring installation column
  • the two ends of the return spring 13 are respectively connected to the first spring installation column and the first spring installation column.
  • the above-mentioned second spring installation column is connected to ensure that the return spring 13 can be stably installed between the first positioning member 11 and the lower cover 22 .
  • a return spring 13 is provided between the first positioning member 11 and the lower cover 22, so that the first positioning member 11 is pushed by the second positioning member 12, and the return spring 13 is compressed to ensure the first positioning.
  • Part 11 moves smoothly and second locating part 12 can rotate smoothly, and can make again when second locating part 12 does not move, and return spring 13 can push first locating part 11 and second locating part 12 to lock each other, thereby guarantees support leg 3 can be locked in the open position.
  • the first positioning member 11 is provided with a waist-shaped hole 111
  • the lower cover 22 is provided with a protrusion 221 that movably fits with the waist-shaped hole 111 .
  • the number of waist-shaped holes 111 is two, and the number of corresponding protrusions 221 is also two, and the two waist-shaped holes 111 are respectively arranged at both ends of the first positioning member 11, so that the first positioning member 11 is relatively lower than the lower one.
  • the moving process of the cover 22 is more stable; the length direction of the waist hole 111 is consistent with the moving direction of the first positioning member 11; when the second positioning member 12 rotates, the first positioning member 11 moves and squeezes the return spring 13, when the second positioning member 12 rotates, the first positioning member 11 moves and squeezes the return spring 13 After the second positioning member 12 is locked with the first positioning member 11 , the return spring 13 resets and stretches, and pushes the first positioning member 11 to compress the second positioning member 12 .
  • the waist-shaped hole 111 is added to cooperate with the boss 221, which helps the first positioning member 11 to move more reliably relative to the lower cover 22, and can prevent the first positioning member 11 from colliding with the lower cover during the movement process. 22 break away.
  • the second positioning member 12 is connected with a rotating shaft 14 rotatably connected with the fixing plate 23 .
  • one end of the second positioning member 12 is fixedly connected to the support leg 3, and the other end is connected to the rotating shaft 14, and the rotating shaft 14 is rotationally connected to the fixed plate 23, so that the second positioning member 12 and the supporting leg 3 can rotate relative to the fixed plate 23
  • the second positioning member 12 is provided with a first abutment surface 122, a second abutment surface 123 and a
  • the cam surface 124 between the surface 122 and the second abutment surface 123, the first abutment surface 122, the second abutment surface 123 and the cam surface 124 are in different positions on the support leg 3 and abut against the first positioning member 11 respectively.
  • the outer contour of the second positioning member 12 is provided with a first abutting surface 122, a cam surface 124 and a second abutting surface 123 in sequence.
  • 11 abutment, when the supporting foot is in the retracted position, the second abutting surface 123 abuts against the first positioning member 11, when the supporting foot is transformed from the open position to the closed position or from the closed position to the open position,
  • the cam surface 124 abuts against the first positioning member 11; the distance from the cam surface 124 to the rotation axis 14 is greater than the distance from the first abutment surface 122 or the second abutment surface 123 to the rotation axis 14, so as to ensure that the support foot is transformed from the open position
  • the second positioning member 12 can push the first positioning member 11 to move; the first abutting surface 122 and the second abutting surface 123 are planes, and the first positioning member 11
  • the first abutting surface 122 and the second abutting surface 123 are planes perpendicular to each other.
  • the first abutting surface 122 and the second abutting surface 123 are planes perpendicular to each other, which can realize the vertical support operation of the support leg 3 and the storage operation of the support leg 3 in place;
  • the cam surface 124 is an arc surface, and the three are smooth The transition makes the switching of the 3 positions of the supporting legs smoother.
  • the supporting leg 3 When the supporting leg 3 is opened from the retracted position, the supporting leg 3 is opened and rotated through the rotating shaft 14, and the second positioning members 12 on both sides of the supporting leg 3 will press the first positioning member 11 backward and compress the return spring 13,
  • the second positioning member 12 When rotated to the open position, the second positioning member 12 is automatically aligned with the first abutment surface 122 of the second positioning member 12 under the action of the return spring 13, so as to lock the open state of the supporting leg 3, so as to ensure that in the event of an accident , the support opening angle of the support leg 3 will not change easily, so as to better support the child safety seat, thereby protecting the child in the seat;
  • the second positioning member 12 on both sides of the supporting leg 3 When it is folded and rotated, the second positioning member 12 on both sides of the supporting leg 3 will press the first positioning member 11 backward and compress the return spring 13.
  • the second abutting surface 123 of the second positioning member 12 is automatically aligned under the action of the second positioning member 12 to lock the
  • Another embodiment of the present utility model provides a child safety seat, comprising the support leg positioning structure as described above.
  • the opening and closing positioning assembly 1 is arranged between the connecting assembly 2 and the supporting leg 3, so that the supporting leg 3 can be locked with the connecting assembly 2 when it is in the open position, that is, the supporting leg 3
  • the position will not change when it is impacted by a large external force, so that the child safety seat can be effectively supported to ensure the safety of the child; and the opening and closing positioning assembly 1 is designed to be mutually compatible
  • the locked first positioning piece 11 and the second positioning piece 12, and the first positioning piece 11 and the second positioning piece 12 are respectively connected to the connection assembly 2 and the support leg 3, so that the support leg 3 and the connection assembly 2 can be connected to each other Locking, this design is simple in structure, convenient and reliable in operation.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

公开了一种支撑腿定位结构及儿童安全座椅，支撑腿定位结构包括开合定位组件（1）、连接组件（2）和与连接组件铰接连接的支撑腿（3），开合定位组件（1）包括相互配合的第一定位件（11）和第二定位件（12），第一定位件（11）与连接组件（2）活动连接，第二定位件（12）的一端与支撑腿（3）连接、另一端与连接组件（2）铰接，当支撑腿（3）处于打开位置时，第一定位件（11）与第二定位件（12）相互锁定。通过在连接组件（2）和支撑腿（3）之间设置开合定位组件（1），使得支撑腿（3）在打开位置时能与连接组件（2）相互锁定，从而能对儿童安全座椅进行有效的支撑，以保证乘坐儿童的安全。这种开合定位组件（1）结构简单，操作便捷可靠。

Description

一种支撑腿定位结构及儿童安全座椅 技术领域
本实用新型涉及儿童安全座椅技术领域，具体而言，涉及一种支撑腿定位结构及儿童安全座椅。
背景技术
随着人们乘车安全意识的提高，儿童安全座椅已经成为了婴童乘车必备用品。为了阻止儿童安全座椅在急刹车等情况下由于惯性作用发生移动，一般会在底座前端设置支撑腿，在不使用儿童安全座椅时还能将支撑腿收起。但现有的儿童安全座椅的支撑腿没有锁紧结构，在支撑腿打开时支撑腿还可以随意晃动，其支撑不牢靠，安全性低。
实用新型内容
为解决上述问题中的至少一个方面，本实用新型首先提供一种支撑腿定位结构，包括开合定位组件、连接组件和与所述连接组件铰接连接的支撑腿，所述开合定位组件包括相互配合的第一定位件和第二定位件，所述第一定位件与所述连接组件活动连接，所述第二定位件的一端与所述支撑腿连接、另一端与所述连接组件铰接连接，当所述支撑腿处于打开位置时，所述第一定位件与所述第二定位件相互锁定。
可选地，所述第二定位件设有与所述支撑腿连接的方形槽。
可选地，所述连接组件包括相互连接的下盖和固定板，所述第一定位件与所述下盖连接，所述第二定位件与所述固定板连接。
可选地，所述第一定位件与所述下盖之间设有复位弹簧。
可选地，所述第一定位件设有腰型孔，所述下盖设有与所述腰型孔活动配合的凸柱。
可选地，所述第二定位件连接有与所述固定板转动连接的旋转轴。
可选地，所述第二定位件设有第一抵接面、第二抵接面和设于所述第一抵接面和所述第二抵接面之间的凸轮面，所述第一抵接面、所述第二抵接面和所述凸轮面在所述支撑腿处于不同位置时分别与第一定位件抵接。
可选地，所述第一抵接面和所述第二抵接面之间为相互垂直的平面。
相对于现有技术，本实用新型中的支撑腿定位结构，通过在连接组件和支撑腿之间设置开合定位组件，使得支撑腿在打开位置时能与连接组件相互锁定，也即使得支撑腿在受到较大外力冲击时不会发生位置变动，从而能对儿童安全座椅进行有效的支撑，以保证乘坐儿童的安全；且开合定位组件设计为在支撑腿处于打开位置时能相互锁定的第一定位件和第二定位件，且第一定位件和第二定位件分别与连接组件和支撑腿连接，从而使得支撑腿与连接组件之间能相互锁定，这种设计结构简单，操作便捷可靠。
另外，本实用新型提供一种儿童安全座椅，包括如上所述的支撑腿定位结构。
相对于现有技术，本实用新型所述的儿童安全座椅与上述支撑腿定位结构相对于现有技术所具有的优势相同，在此不再赘述。
附图说明
图1为本实用新型实施例的支撑腿定位结构在支撑腿处于收合位置时的剖视图；
图2为图1中A部的放大图；
图3为本实用新型实施例的支撑腿定位结构在支撑腿从收合位置变换到打开位置时的剖视图；
图4为图3中B部的放大图；
图5为本实用新型实施例的支撑腿定位结构在支撑腿处于打开位置时的剖视图；
图6为图5中C部的放大图；
图7为本实用新型实施例的支撑腿定位结构在支撑腿从收合位置变换到打开位置时的仰视图；
图8为本实用新型实施例的开合定位组件的爆炸图；
图9为本实用新型实施例的第二定位件的结构图。
附图标记说明：
1、开合定位组件；11、第一定位件；111、腰型孔；12、第二定位件；121、方形槽；122、第一抵接面；123、第二抵接面；124、凸轮面；13、复位弹簧；14、旋转轴；2、连接组件；21、上盖；22、下盖；221、凸柱；23、固定板；3、支撑腿。
具体实施方式
为使本实用新型的上述目的、特征和优点能够更为明显易懂，下面结合附图对本实用新型的具体实施例做详细的说明。
在本实用新型的描述中，需要理解的是，术语“上”、“下”等指示的方位或位置关系为基于产品正常使用时的方位或位置关系。
术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。
本实用新型实施例提供了一种支撑腿定位结构，结合图1、图2、图5和图6所示，包括开合定位组件1、连接组件2和与所述连接组件2铰接连接的支撑腿3，所述开合定位组件1包括相互配合的第一定位件11和第二定位件12，所述第一定位件11与所述连接组件2活动连接，所述第二定位件12的一端与所述支撑腿3连接、另一端与所述连接组件2铰接连接，当所述支撑腿3处于打开位置时，所述第一定位件11与所述第二定位件12相互锁定。
其中，支撑腿3通过连接组件2与儿童安全座椅的底座进行连接，支撑腿3的一端与连接组件2铰接、另一端可绕支撑腿3与连接组件2的铰接点进行转动；支撑腿3具有收合位置(如图1所示)和打开位置(如图5所示)，当儿童安全座椅不使用时，支撑腿3切换至收合位置，当将儿童安全座椅安装到汽车上进行使用时，支撑腿3切换至打开位置。
第二定位件12与支撑腿3固定连接，当支撑腿3相对于连接组件2转动 时，第二定位件12也同步相对于连接组件2进行转动；第二定位件12在转动过程中能推动第一定位件11相对于连接组件2进行移动，当支撑腿3切换到打开位置时，第二定位件12与第一定位件11相互锁定，使得支撑腿3在打开位置时相对于连接组件2不会发生随意晃动的情况；第二定位件12在转动过程中始终与第一定位件11抵接连接。
本实施例中的支撑腿定位结构，通过在连接组件2和支撑腿3之间设置开合定位组件1，使得支撑腿3在打开位置时能与连接组件2相互锁定，也即使得支撑腿3在受到较大外力冲击时不会发生位置变动，从而能对儿童安全座椅进行有效的支撑，以保证乘坐儿童的安全；且开合定位组件1设计为在支撑腿3处于打开位置时能相互锁定的第一定位件11和第二定位件12，且第一定位件11和第二定位件12分别与连接组件2和支撑腿3连接，从而使得支撑腿3与连接组件2之间能相互锁定，这种设计结构简单，操作便捷可靠。
可选地，结合图1、图2、图9所示，所述第二定位件12设有与所述支撑腿3连接的方形槽121。
其中，第二定位件12为片状结构，数量为两个，两个第二定位件12分别设置在支撑腿3的顶端两侧，使得第二定位件12与第一定位件11相互间的锁定效果更佳；支撑腿的顶端两侧设有与方形槽121配合的方形凸块(图中未示出)，实现第二定位件12与支撑腿3相互固定连接，以确保支撑腿3与第二定位件12能同步转动。
可选地，结合图3、图4所示，所述连接组件2包括相互连接的下盖22和固定板23，所述第一定位件11与所述下盖22连接，所述第二定位件12与所述固定板23连接。
其中，下盖22与固定板23之间设有供第一定位件11安装的腔室，下盖22设有供第二定位件12穿过的通孔，腔室与通孔贯通，以方便第一定位件11与第二定位件12相互配合；下盖22优选为塑料件，固定板23优选为金属件，既能保证儿童安全座椅整体重量尽量轻，还能保证连接组件2的抗变形强度；连接组件2还包括上盖21，上盖21和下盖22通过紧固件相互固定连接；第一定位件11与下盖22活动连接，第二定位件12通过销轴与固定板23铰接连接，第二定位件12在转动过程中能推动第一定位件11移动。
可选地，结合图5、图6、图8所示，所述第一定位件11与所述下盖22之间设有复位弹簧13。
其中，复位弹簧13为压缩弹簧，下盖22设有第一弹簧安装柱，第一定位件11设有第二弹簧安装柱，复位弹簧13的两端分别与所述第一弹簧安装柱和所述第二弹簧安装柱连接，确保复位弹簧13能稳固安装在第一定位件11和下盖22之间。本实施例中在第一定位件11与下盖22之间设置复位弹簧13，既能使得第一定位件11在第二定位件12的推动下，复位弹簧13被压缩，以确保第一定位件11顺利移动及第二定位件12能顺利转动，又能使得在第二定位件12不动作时，复位弹簧13能推动第一定位件11与第二定位件12相互锁定，从而保证支撑腿3能锁定在打开位置。
可选地，结合图7、图8所示，所述第一定位件11设有腰型孔111，所述下盖22设有与所述腰型孔111活动配合的凸柱221。
其中，腰型孔111数量为两个，则对应的凸柱221数量也为两个，两个腰型孔111分别设置在第一定位件11的两端，使得第一定位件11相对于下盖22移动的过程更加稳定；腰型孔111的长度方向与第一定位件11的移动方向一致；在第二定位件12转动时，第一定位件11移动并挤压复位弹簧13，当第二定位件12与第一定位件11相互锁定后，复位弹簧13复位伸长，并推动第一定位件11压紧第二定位件12。
本实施例中增设腰型孔111与凸柱221配合的结构，有助于第一定位件11相对于下盖22的移动更加可靠，且能防止第一定位件11在移动过程中与下盖22脱离。
可选地，结合图4、图6所示，所述第二定位件12连接有与所述固定板23转动连接的旋转轴14。
其中，第二定位件12的一端与支撑腿3固定连接、另一端连接旋转轴14，旋转轴14与固定板23转动连接，使得第二定位件12和支撑腿3能相对于固定板23转动；第二定位件12的数量为两个，分别设置在支撑腿3的顶端的两侧，旋转轴14的两端分别与两个第二定位件12连接。
可选地，结合图1、图3、图5、图9所示，所述第二定位件12设有第一 抵接面122、第二抵接面123和设于所述第一抵接面122和所述第二抵接面123之间的凸轮面124，所述第一抵接面122、所述第二抵接面123和所述凸轮面124在所述支撑腿3处于不同位置时分别与第一定位件11抵接。
其中，第二定位件12的外轮廓依次设有第一抵接面122、凸轮面124和第二抵接面123，当支撑脚位于打开位置时，第一抵接面122与第一定位件11抵接，当支撑脚位于收合位置时，第二抵接面123与第一定位件11抵接，当支撑脚从打开位置转变到闭合位置或从闭合位置转变到打开位置的过程中，凸轮面124与第一定位件11抵接；凸轮面124到旋转轴14的距离大于第一抵接面122或第二抵接面123到旋转轴14的距离，以确保支撑脚从打开位置转变到闭合位置或从闭合位置转变到打开位置的过程中，第二定位件12能推动第一定位件11移动；第一抵接面122和第二抵接面123为平面，第一定位件11与第一抵接面122和第二抵接面123接触的部位也为平面，从而确保第一抵接面122与第一定位件11相互抵接时或第二抵接面123与第一定位件11相互抵接时，第一定位件11与第二定位件12能相互锁定。
可选地，结合图9所示，所述第一抵接面122和所述第二抵接面123之间为相互垂直的平面。
其中，第一抵接面122和第二抵接面123为相互垂直的平面，能实现支撑腿3垂直支撑操作和支撑腿3收纳到位操作；凸轮面124为弧形面，三者之间光滑过渡，使得支撑腿3位置切换更加顺畅。
当支撑腿3从收合位置打开时，支撑腿3通过旋转轴14进行打开旋转，支撑腿3两侧的第二定位件12会将第一定位件11向后压，并压缩复位弹簧13，当旋转至打开位置时，第二定位件12在复位弹簧13的作用下自动对准第二定位件12的第一抵接面122，以对支撑腿3打开状态进行锁定，确保在发生事故时，支撑腿3的支撑开启角度不会轻易发生变化，以更好的支撑住儿童安全座椅，从而保护乘坐儿童；反之，当将支撑腿3从打开位置收回时，支撑腿3通过旋转轴14进行收合旋转，支撑腿3两侧的第二定位件12会将第一定位件11向后压，并压缩复位弹簧13，当旋转至收合位置时，第二定位件12在复位弹簧13的作用下自动对准第二定位件12的第二抵接面123，以对支撑腿3收合状态进行锁定。
本实用新型另一实施例提供了一种儿童安全座椅，包括如上所述的支撑腿定位结构。
本实施例中的儿童安全座椅，通过在连接组件2和支撑腿3之间设置开合定位组件1，使得支撑腿3在打开位置时能与连接组件2相互锁定，也即使得支撑腿3在受到较大外力冲击时不会发生位置变动，从而能对儿童安全座椅进行有效的支撑，以保证乘坐儿童的安全；且开合定位组件1设计为在支撑腿3处于打开位置时能相互锁定的第一定位件11和第二定位件12，且第一定位件11和第二定位件12分别与连接组件2和支撑腿3连接，从而使得支撑腿3与连接组件2之间能相互锁定，这种设计结构简单，操作便捷可靠。
虽然本公开披露如上，但本公开的保护范围并非仅限于此。本领域技术人员在不脱离本公开的精神和范围的前提下，可进行各种变更与修改，这些变更与修改均将落入本实用新型的保护范围。

Claims (9)

  1. 一种支撑腿定位结构，其特征在于，包括开合定位组件(1)、连接组件(2)和与所述连接组件(2)铰接连接的支撑腿(3)，所述开合定位组件(1)包括相互配合的第一定位件(11)和第二定位件(12)，所述第一定位件(11)与所述连接组件(2)活动连接，所述第二定位件(12)的一端与所述支撑腿(3)连接、另一端与所述连接组件(2)铰接连接，当所述支撑腿(3)处于打开位置时，所述第一定位件(11)与所述第二定位件(12)相互锁定。
  2. 根据权利要求1所述的支撑腿定位结构，其特征在于，所述第二定位件(12)设有与所述支撑腿(3)连接的方形槽(121)。
  3. 根据权利要求1所述的支撑腿定位结构，其特征在于，所述连接组件(2)包括相互连接的下盖(22)和固定板(23)，所述第一定位件(11)与所述下盖(22)连接，所述第二定位件(12)与所述固定板(23)连接。
  4. 根据权利要求3所述的支撑腿定位结构，其特征在于，所述第一定位件(11)与所述下盖(22)之间设有复位弹簧(13)。
  5. 根据权利要求3所述的支撑腿定位结构，其特征在于，所述第一定位件(11)设有腰型孔(111)，所述下盖(22)设有与所述腰型孔(111)活动配合的凸柱(221)。
  6. 根据权利要求3所述的支撑腿定位结构，其特征在于，所述第二定位件(12)连接有与所述固定板(23)转动连接的旋转轴(14)。
  7. 根据权利要求1-6任一项所述的支撑腿定位结构，其特征在于，所述第二定位件(12)设有第一抵接面(122)、第二抵接面(123)和设于所述第一抵接面(122)和所述第二抵接面(123)之间的凸轮面(124)，所述第一抵接面(122)、所述第二抵接面(123)和所述凸轮面(124)在所述支撑腿(3)处于不同位置时分别与第一定位件(11)抵接。
  8. 根据权利要求7所述的支撑腿定位结构，其特征在于，所述第一抵接面(122)和所述第二抵接面(123)之间为相互垂直的平面。
  9. 一种儿童安全座椅，其特征在于，包括如权利要求1-8任一项所述的 支撑腿定位结构。
PCT/CN2022/101078 2021-07-30 2022-06-24 一种支撑腿定位结构及儿童安全座椅 WO2023005532A1 (zh)

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