WO2023005535A1 - 一种支撑腿伸缩结构及儿童安全座椅 - Google Patents

一种支撑腿伸缩结构及儿童安全座椅 Download PDF

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Publication number
WO2023005535A1
WO2023005535A1 PCT/CN2022/101083 CN2022101083W WO2023005535A1 WO 2023005535 A1 WO2023005535 A1 WO 2023005535A1 CN 2022101083 W CN2022101083 W CN 2022101083W WO 2023005535 A1 WO2023005535 A1 WO 2023005535A1
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WO
WIPO (PCT)
Prior art keywords
base
supporting leg
block
reinforcing rod
track
Prior art date
Application number
PCT/CN2022/101083
Other languages
English (en)
French (fr)
Inventor
周小林
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.)
Filing date
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 EP22848142.0A priority Critical patent/EP4328085A1/en
Publication of WO2023005535A1 publication Critical patent/WO2023005535A1/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
    • 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
    • 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

Definitions

  • the utility model relates to the technical field of child safety seats, in particular to a support leg telescopic structure and a child safety seat.
  • support legs are generally provided at the front end of the base to support and fix the position of the child safety seat.
  • the supporting legs are generally designed as telescopic structures. Heavy weight, complex installation and operation.
  • the utility model firstly provides a support leg telescopic structure, including a base and a support leg base slidingly connected to the base, a reinforcing rod is installed on the base, and the support leg
  • the base is slidably connected to the reinforcing rod, and the end of the reinforcing rod connected to the base of the supporting leg is provided with a pressure block and a supporting block; it also includes a connecting rod passing through the base of the supporting leg, and the connecting rod Abutting against the upper surface of the reinforcing rod, a first track matching the connecting rod is formed between the support block and the upper surface of the reinforcing rod, and the supporting leg base is provided with a first flange , A second track cooperating with the first flange is formed between the pressing block and the base.
  • the number of the reinforcing rods is two, and the two reinforcing rods are arranged symmetrically on the left and right sides of the support leg base.
  • a third track is provided on the base, and a sliding column cooperating with the third track is provided on the support leg base.
  • the sliding column is connected with a fastener for preventing the sliding column from detaching from the third track.
  • the reinforcing rod is a metal piece.
  • the support block and the pressure block are integrally formed with the reinforcing rod.
  • the support block has a U-shaped groove with an opening facing backward, and when the support leg base is pulled forward to the outermost side, the connecting rod is snapped into the U-shaped groove.
  • the supporting leg base is provided with a second flange, and when the supporting leg base is pulled forward to the outermost side, the second flange abuts against the upper surface of the pressing block.
  • the upper surface of the pressure block is further provided with a limiting protrusion that cooperates with the second flange.
  • a reinforcing rod is arranged between the base and the base of the supporting legs, and a pressing block and a supporting block are arranged on the reinforcing rod, so that a
  • the second track is formed between the first track, the pressure block and the base, and the first track and the second track arranged up and down are respectively slidably matched with the connecting rod and the first flange on the support leg base, thereby realizing the support leg base.
  • the seat performs front and rear telescopic operations relative to the base.
  • This structure is not only beneficial to the structure of the double-layer track, but also makes the telescopic process of the supporting leg base more stable and reliable, reducing the shaking gap between the supporting leg base and the base, and the number of structural parts is small. , the overall weight is reduced, and the installation and operation are simpler and more convenient.
  • the utility model provides a child safety seat, which includes the telescopic structure of the supporting legs as described above.
  • the child safety seat of the present invention has the same advantages as the above-mentioned support leg telescopic structure compared with the prior art, and will not be repeated here.
  • Fig. 1 is the exploded view of the telescoping structure of the support leg of the utility model embodiment
  • Fig. 2 is a structural diagram of the telescopic structure of the supporting legs in the embodiment of the present invention when the supporting legs are pulled out;
  • Fig. 3 is an enlarged view of part A in Fig. 2;
  • Fig. 4 is a partial cross-sectional view of the telescopic structure of the supporting legs in the embodiment of the present invention when the supporting legs are pulled out;
  • Fig. 5 is a partial structural diagram of a reinforcing rod in an embodiment of the present invention.
  • Fig. 6 is a structural diagram of the telescopic structure of the supporting legs in the embodiment of the present invention when the supporting legs are in the retracted state;
  • Fig. 7 is an enlarged view of part B in Fig. 6;
  • Fig. 8 is a cross-sectional view of the telescoping structure of the supporting legs according to the embodiment of the present invention.
  • Base 11. Third rail; 2. Support leg base; 21. First flange; 22. Sliding column; 23. Fastener; 24. Second flange; 3. Reinforcing rod; 31. Pressure block; 311, limit protrusion; 32, support block; 321, U-shaped groove; 4, connecting rod; 5, first track; 6, second track; 7, 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 accompanying drawings of the embodiments of the present utility model are provided with a coordinate system XYZ, wherein the positive direction of the X-axis represents the left, the reverse direction of the X-axis represents the right, the positive direction of the Y-axis represents the front, and the reverse direction of the Y-axis represents the rear , the positive direction of the Z axis represents the top, and the reverse direction of the Z axis represents the bottom.
  • the embodiment of the utility model provides a support leg telescopic structure, as shown in FIG. 1, FIG. 2, FIG. 1 is installed with a reinforcing rod 3, the supporting leg base 2 is slidingly connected with the reinforcing rod 3, and the end of the reinforcing rod 3 connected with the supporting leg base 2 is provided with a pressing block 31 and a supporting block 32 ; Also includes a connecting rod 4 that runs through the supporting leg base 2, the connecting rod 4 is against the upper surface of the reinforcing rod 3, and the upper surface of the supporting block 32 and the reinforcing rod 3 is formed There is a first rail 5 matched with the connecting rod 4, and the support leg base 2 is provided with a first flange 21, and a gap with the first flange is formed between the pressure block 31 and the base 1. 21 fits the second rail 6.
  • the reinforcing rod 3 is fixedly connected with the base 1 through fasteners 23 such as screws, and the supporting leg base 2 can move back and forth relative to the base 1 and the reinforcing rod 3;
  • the connecting rod 4 is a smooth cylindrical structure, and the supporting leg base 2 is in the During the forward and backward movement, the connecting rod 4 can be driven to move synchronously in the first track 5;
  • the first flange 21 is located below the connecting rod 4, and the second track 6 is formed between the lower surface of the pressing block 31 and the upper surface of the base 1 , the support leg base 2 can drive the first flange 21 to move synchronously in the second track 6 during the forward and backward movement;
  • the support block 32 is arranged in front of the pressing block 31, and the first track 5 is located above the second track 6 , the supporting leg base 2 utilizes double-layer rails to move forward and backward relative to the base 1 .
  • a reinforcing rod 3 is set between the base 1 and the supporting leg base 2, and a pressing block 31 and a supporting block 32 are arranged on the reinforcing rod 3, so that the distance between the supporting block 32 and the reinforcing rod 3
  • the first rail 5 and the second rail 6 are formed between the pressure block 31 and the base 1.
  • the first rail 5 and the second rail 6 arranged up and down are connected with the connecting rod 4 and the first rail on the support leg base 2 respectively.
  • the flange 21 slides and fits, so as to realize the telescopic operation of the supporting leg base 2 relative to the base 1.
  • This structure is not only beneficial to the structure of the double-layer track, but also makes the telescopic process of the supporting leg base 2 more stable and reliable, reducing the number of supporting leg bases. 2 and the base 1, and the number of structural parts is small, the overall weight is reduced, and the installation operation is simpler and more convenient.
  • the number of the reinforcing rods 3 is two, and the two reinforcing rods 3 are symmetrically arranged on the left and right sides of the support leg base 2 .
  • the connecting rod 4 runs through the left and right sides of the supporting leg base 2, and the left and right ends of the connecting rod 4 respectively abut against the upper surfaces of the two reinforcing rods 3, and the two ends of the connecting rod 4 are respectively connected to the corresponding supporting blocks. 32; the left and right sides of the lower end of the supporting leg base 2 are provided with first flanging 21, and each first flanging 21 cooperates with the corresponding pressing block 31; in the present embodiment, the number of reinforcing rods 3 is designed as two One, so that the telescopic movement of the support leg base 2 is more stable and reliable.
  • the base 1 is provided with a third track 11
  • the support leg base 2 is provided with a sliding column 22 cooperating with the third track 11 .
  • the length direction of the third rail 11 is consistent with the front-to-back direction
  • the sliding column 22 is arranged on the rear end of the supporting leg base 2
  • the supporting leg 7 is hingedly connected with the front end of the supporting leg base 2, when the sliding column 22 moves to the third
  • the support leg 7 was in the retracted state (as shown in Figure 2)
  • the sliding column 22 moved to the front end of the third track 11 the support leg 7 was in the drawn state (as shown in Figure 6).
  • the sliding column 22 and the third track 11 are designed to be slidingly connected to each other, so as to realize the sliding connection between the supporting leg base 2 and the base 1 in the front and rear direction, and the supporting leg base 2 will not be deflected during the sliding process. incline.
  • the sliding column 22 is connected with a fastener 23 for preventing the sliding column 22 from detaching from the third track 11 .
  • the fastener 23 is used to limit the sliding column 22 to move up and down relative to the third rail 11, that is, to prevent the support leg base 2 from moving up and down relative to the base 1;
  • the fastener 23 is preferably a screw, and the screw It has a threaded rod and a screw cap.
  • the diameter of the screw cap is greater than the width of the third track 11 in the left-right direction.
  • the screw cap is located below the third track 11 .
  • the reinforcing rod 3 is a metal piece.
  • the reinforcing rod 3 is a hollow structure to ensure that the overall structure is light; the reinforcing rod 3 is made of metal parts to ensure the deformation resistance of the reinforcing rod 3 .
  • the support block 32 and the pressure block 31 are integrally formed with the reinforcing rod 3 .
  • the supporting block 32 and the pressing block 31 can be fixedly connected with the reinforcing rod 3 by die-casting or welding respectively.
  • the support block 32 and the pressure block 31 are designed to be integrally formed with the reinforcing rod 3 to realize assembly in the form of components, making the installation easier and quicker.
  • the support block 32 has a U-shaped groove 321 that opens toward the rear.
  • the support leg base 2 is pulled forward to the outermost side, the The connecting rod 4 snaps into the U-shaped groove 321 .
  • the connecting rod 4 supports the inner wall of the U-shaped groove 321 upwards, which can prevent the supporting leg base 2 from breaking away from the reinforcing rod 3 during the forward and backward movement process, especially when the supporting leg base 2 When it is located on the outermost side and under force, ensure that the support leg base 2 is firmly connected with the base 1 .
  • the supporting leg base 2 is provided with a second flange 24 , and when the supporting leg base 2 is pulled forward to the outermost side, the The second flange 24 abuts against the upper surface of the pressure block 31 .
  • the left and right sides of the rear end of the supporting leg base 2 are provided with second flanges 24.
  • the second flanges 24 on both sides are respectively aligned with the corresponding pressing blocks 31.
  • the upper surface abuts; when the supporting leg 7 supports the chassis of the automobile, the second flange 24 supports the pressure block 31 downward, and the connecting rod 4 upwardly withstands the supporting block 32, thereby forming a strong supporting lever, so that the supporting leg 7 and the The chassis of the car can be firmly supported.
  • the upper surface of the pressure block 31 is further provided with a limiting protrusion 311 that cooperates with the second flange 24 .
  • the limiting protrusion 311 is arranged on the front end of the upper surface of the pressure block 31, so that when the supporting leg base 2 moves to the outermost side, the second flange 24 abuts against the limiting protrusion 311;
  • the limit protrusion 311 cooperating with the second flange 24 ensures that the second flange 24 and the pressing plate can cooperate with each other, and prevents the second flange 24 and the pressing block 31 from being separated from each other during the back and forth movement of the supporting leg base 2 .
  • Another embodiment of the present utility model provides a child safety seat, comprising the telescopic structure of the supporting legs as described above.
  • a reinforcing rod 3 is provided between the base 1 and the supporting leg base 2, and a pressing block 31 and a supporting block 32 are arranged on the reinforcing rod 3, so that the distance between the supporting block 32 and the reinforcing rod 3
  • the first rail 5 and the second rail 6 are formed between the pressure block 31 and the base 1.
  • the first rail 5 and the second rail 6 arranged up and down are connected with the connecting rod 4 and the first rail on the support leg base 2 respectively.
  • the flange 21 slides and fits, so as to realize the telescopic operation of the supporting leg base 2 relative to the base 1.
  • This structure is not only beneficial to the structure of the double-layer track, but also makes the telescopic process of the supporting leg base 2 more stable and reliable, reducing the number of supporting leg bases. 2 and the base 1, and the number of structural parts is small, the overall weight is reduced, and the installation operation is simpler and more convenient.

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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)
  • Legs For Furniture In General (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Seats For Vehicles (AREA)

Abstract

一种支撑腿伸缩结构，包括底座（1）和支撑腿基座（2），底座（1）上安装有加强杆（3），支撑腿基座（2）与加强杆（3）滑动连接，加强杆（3）上与支撑腿基座（2）连接的一端设有压块（31）和支撑块（32）；还包括贯穿支撑腿基座（2）的连接杆（4），连接杆（4）抵靠在加强杆（3）的上表面，支撑块（32）与加强杆（3）的上表面之间形成有与连接杆（4）配合的第一轨道（5），支撑腿基座（2）设有第一翻边（21），压块（31）与底座（1）之间形成有与第一翻边（21）配合的第二轨道（6）。该结构在加强杆（3）上设置压块（31）和支撑块（32），使得支撑块（32）与加强杆（3）之间形成第一轨道（5）及压块（31）与底座（1）之间形成第二轨道（6），实现支撑腿基座（2）相对于底座（1）进行前后伸缩操作，还能减少支撑腿基座（2）与底座（1）之间的晃动间隙，且部件数量少，重量减轻，安装操作也更加简单便捷。还涉及一种儿童安全座椅。

Description

一种支撑腿伸缩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，涉及一种支撑腿伸缩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，以支撑固定儿童安全座椅的位置。为了兼顾支撑腿不使用时能收纳到底座内及使用时能有效支撑汽车底盘的目的，一般将支撑腿设计为可伸缩的结构，但现有技术中的支撑腿伸缩结构的零部件较多，重量大，安装操作复杂。
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伸缩结构，包括底座和滑动连接于所述底座的支撑腿基座，所述底座上安装有加强杆，所述支撑腿基座与所述加强杆滑动连接，所述加强杆上与所述支撑腿基座连接的一端设有压块和支撑块；还包括贯穿所述支撑腿基座的连接杆，所述连接杆抵靠在所述加强杆的上表面，所述支撑块与所述加强杆的上表面之间形成有与所述连接杆配合的第一轨道，所述支撑腿基座设有第一翻边，所述压块与所述底座之间形成有与所述第一翻边配合的第二轨道。
可选地，所述加强杆的数量为两个，两个所述加强杆对称设置在所述支撑腿基座的左右两侧。
可选地，所述底座上设有第三轨道，所述支撑腿基座设有与所述第三轨道配合的滑动柱。
可选地，所述滑动柱连接有用于防止所述滑动柱从所述第三轨道脱离的 紧固件。
可选地，所述加强杆为金属件。
可选地，所述支撑块和所述压块与所述加强杆一体成型设计。
可选地，所述支撑块具有开口朝向后方的U型槽，当所述支撑腿基座被向前拉至最外侧时，所述连接杆卡入所述U型槽内。
可选地，所述支撑腿基座设有第二翻边，当所述支撑腿基座被向前拉至最外侧时，所述第二翻边与所述压块的上表面抵接。
可选地，所述压块的上表面还设有与所述第二翻边配合的限位凸块。
相对于现有技术，本实用新型中的支撑腿伸缩结构，在底座与支撑腿基座之间设置加强杆，并在加强杆上设置压块和支撑块，使得支撑块与加强杆之间形成第一轨道及压块与底座之间形成第二轨道，相互上下排布的第一轨道和第二轨道分别与支撑腿基座上的连接杆和第一翻边滑动配合，从而实现支撑腿基座相对于底座进行前后伸缩操作，这种结构不仅利于双层轨道的结构使得支撑腿基座的伸缩过程更加平稳可靠，减少支撑腿基座与底座之间的晃动间隙，且结构零部件数量少，整体重量减轻，安装操作也更加简单便捷。
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伸缩结构。
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伸缩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伸缩结构的爆炸图；
图2为本实用新型实施例的支撑腿伸缩结构在支撑腿处于拉出状态时的结构图；
图3为图2中A部的放大图；
图4为本实用新型实施例的支撑腿伸缩结构在支撑腿处于拉出状态时的局部剖视图；
图5为本实用新型实施例的加强杆的局部结构图；
图6为本实用新型实施例的支撑腿伸缩结构在支撑腿处于缩回状态时的结构图；
图7为图6中B部的放大图；
图8为本实用新型实施例的支撑腿伸缩结构的剖视图。
附图标记说明：
1、底座；11、第三轨道；2、支撑腿基座；21、第一翻边；22、滑动柱；23、紧固件；24、第二翻边；3、加强杆；31、压块；311、限位凸块；32、支撑块；321、U型槽；4、连接杆；5、第一轨道；6、第二轨道；7、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。本实用新型的实施例的附图中设置有坐标系XYZ，其中X轴的正向代表左方，X轴的反向代表右方，Y轴的正向代表前方，Y轴的反向代表后方，Z轴的正向代表上方，Z轴的反向代表下方。
本实用新型实施例提供了一种支撑腿伸缩结构，结合图1、图2、图3、图8所示，包括底座1和滑动连接于所述底座1的支撑腿基座2，所述底座1上安装有加强杆3，所述支撑腿基座2与所述加强杆3滑动连接，所述加强杆3上与所述支撑腿基座2连接的一端设有压块31和支撑块32；还包括贯穿所述支撑腿基座2的连接杆4，所述连接杆4抵靠在所述加强杆3的上表面，所述支撑块32与所述加强杆3的上表面之间形成有与所述连接杆4配合的第一轨道5，所述支撑腿基座2设有第一翻边21，所述压块31与所述底座1之间 形成有与所述第一翻边21配合的第二轨道6。
其中，加强杆3通过螺钉等紧固件23与底座1固定连接，支撑腿基座2能相对于底座1和加强杆3进行前后移动；连接杆4为光滑圆柱结构，支撑腿基座2在前后移动过程中能带动连接杆4在第一轨道5内进行同步移动；第一翻边21位于连接杆4的下方，压块31的下表面与底座1的上表面之间形成第二轨道6，支撑腿基座2在前后移动过程中能带动第一翻边21在第二轨道6内进行同步移动；支撑块32设置在压块31的前方，第一轨道5位于第二轨道6的上方，支撑腿基座2利用双层轨道实现相对于底座1进行前后移动。
本实施例中的支撑腿伸缩结构，在底座1与支撑腿基座2之间设置加强杆3，并在加强杆3上设置压块31和支撑块32，使得支撑块32与加强杆3之间形成第一轨道5及压块31与底座1之间形成第二轨道6，相互上下排布的第一轨道5和第二轨道6分别与支撑腿基座2上的连接杆4和第一翻边21滑动配合，从而实现支撑腿基座2相对于底座1进行前后伸缩操作，这种结构不仅利于双层轨道的结构使得支撑腿基座2的伸缩过程更加平稳可靠，减少支撑腿基座2与底座1之间的晃动间隙，且结构零部件数量少，整体重量减轻，安装操作也更加简单便捷。
可选地，结合图1所示，所述加强杆3的数量为两个，两个所述加强杆3对称设置在所述支撑腿基座2的左右两侧。
其中，连接杆4贯穿支撑腿基座2的左右两侧，并且连接杆4的左右两端分别抵靠在两个加强杆3的上表面，并且连接杆4的两端分别与对应的支撑块32配合；支撑腿基座2的下端左右两侧设有第一翻边21，每个第一翻边21与对应的压块31配合；本实施例中，将加强杆3的数量设计为两个，使得支撑腿基座2的伸缩移动更加稳定可靠。
可选地，结合图1、图4所示，所述底座1上设有第三轨道11，所述支撑腿基座2设有与所述第三轨道11配合的滑动柱22。
其中，第三轨道11的长度方向与前后方向一致，滑动柱22设置在支撑腿基座2的后端，支撑腿7与支撑腿基座2的前端铰接连接，当滑动柱22移 动到第三轨道11的最后端时，支撑腿7处于缩回状态(如图2)，当滑动柱22移动到第三轨道11的最前端时，支撑腿7处于拉出状态(如图6)。
本实施例中，设计滑动柱22与第三轨道11相互滑动连接的结构，来实现支撑腿基座2与底座1在前后方向上滑动连接，且滑动过程中支撑腿基座2不会发生偏斜。
可选地，结合图1、图2、图3所示，所述滑动柱22连接有用于防止所述滑动柱22从所述第三轨道11脱离的紧固件23。
其中，紧固件23用于限制滑动柱22相对于第三轨道11进行上下移动，也即防止支撑腿基座2相对于底座1发生上下移动的现象；紧固件23优选为螺钉，该螺钉具有螺纹杆和螺钉帽，螺钉帽的直径大于第三轨道11的在左右方向上的宽度，螺钉帽位于第三轨道11的下方，螺纹杆贯穿第三轨道11并与滑动柱22固定连接。
可选地，结合图1所示，所述加强杆3为金属件。其中，加强杆3为中空结构，以确保整体结构质量较轻；将加强杆3采用金属件进行制作，以确保加强杆3的抗变形强度。
可选地，结合图1所示，所述支撑块32和所述压块31与所述加强杆3一体成型设计。其中，支撑块32与压块31可分别通过压铸或焊接的形式与加强杆3进行固定连接。本实施例中，将支撑块32和压块31与加强杆3设计为一体成型的设计，实现以组件形式进行组装，使得安装更加简单快捷。
可选地，结合图2、图3、图5所示，所述支撑块32具有开口朝向后方的U型槽321，当所述支撑腿基座2被向前拉至最外侧时，所述连接杆4卡入所述U型槽321内。
其中，支撑腿7撑住汽车底盘时，连接杆4往上撑住U型槽321的内壁，能防止支撑腿基座2在前后移动过程中与加强杆3脱离，尤其在支撑腿基座2位于最外侧并受力时，确保支撑腿基座2与底座1牢固连接。
可选地，结合图2、图3、图7所示，所述支撑腿基座2设有第二翻边24，当所述支撑腿基座2被向前拉至最外侧时，所述第二翻边24与所述压块31的上表面抵接。
其中，支撑腿基座2的后端左右两侧设有第二翻边24，当支撑腿7被向前拉至最外侧时，两侧的第二翻边24分别与对应的压块31的上表面抵接；支撑腿7撑住汽车底盘时，第二翻边24向下撑住压块31，且连接杆4往上顶住支撑块32，从而形成有力支撑杠杆，使得支撑腿7与汽车底盘能牢固支撑。
可选地，结合图3、图5所示，所述压块31的上表面还设有与所述第二翻边24配合的限位凸块311。
其中，限位凸块311设置在压块31的上表面的前端，使得支撑腿基座2移动到最外侧时，第二翻边24与限位凸块311抵接；本实施例中，设置与第二翻边24配合的限位凸块311，以确保第二翻边24与压板能相互配合，防止支撑腿基座2在前后移动过程中第二翻边24与压块31相互脱离。
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伸缩结构。
本实施例中的儿童安全座椅，在底座1与支撑腿基座2之间设置加强杆3，并在加强杆3上设置压块31和支撑块32，使得支撑块32与加强杆3之间形成第一轨道5及压块31与底座1之间形成第二轨道6，相互上下排布的第一轨道5和第二轨道6分别与支撑腿基座2上的连接杆4和第一翻边21滑动配合，从而实现支撑腿基座2相对于底座1进行前后伸缩操作，这种结构不仅利于双层轨道的结构使得支撑腿基座2的伸缩过程更加平稳可靠，减少支撑腿基座2与底座1之间的晃动间隙，且结构零部件数量少，整体重量减轻，安装操作也更加简单便捷。
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 (10)

  1. 一种支撑腿伸缩结构，其特征在于，包括底座(1)和滑动连接于所述底座(1)的支撑腿基座(2)，所述底座(1)上安装有加强杆(3)，所述支撑腿基座(2)与所述加强杆(3)滑动连接，所述加强杆(3)上与所述支撑腿基座(2)连接的一端设有压块(31)和支撑块(32)；还包括贯穿所述支撑腿基座(2)的连接杆(4)，所述连接杆(4)抵靠在所述加强杆(3)的上表面，所述支撑块(32)与所述加强杆(3)的上表面之间形成有与所述连接杆(4)配合的第一轨道(5)，所述支撑腿基座(2)设有第一翻边(21)，所述压块(31)与所述底座(1)之间形成有与所述第一翻边(21)配合的第二轨道(6)。
  2. 根据权利要求1所述的支撑腿伸缩结构，其特征在于，所述加强杆(3)的数量为两个，两个所述加强杆(3)对称设置在所述支撑腿基座(2)的左右两侧。
  3. 根据权利要求1所述的支撑腿伸缩结构，其特征在于，所述底座(1)上设有第三轨道(11)，所述支撑腿基座(2)设有与所述第三轨道(11)配合的滑动柱(22)。
  4. 根据权利要求3所述的支撑腿伸缩结构，其特征在于，所述滑动柱(22)连接有用于防止所述滑动柱(22)从所述第三轨道(11)脱离的紧固件(23)。
  5. 根据权利要求1所述的支撑腿伸缩结构，其特征在于，所述加强杆(3)为金属件。
  6. 根据权利要求1所述的支撑腿伸缩结构，其特征在于，所述支撑块(32)和所述压块(31)与所述加强杆(3)一体成型设计。
  7. 根据权利要求1所述的支撑腿伸缩结构，其特征在于，所述支撑块(32)具有开口朝向后方的U型槽(321)，当所述支撑腿基座(2)被向前拉至最外侧时，所述连接杆(4)卡入所述U型槽(321)内。
  8. 根据权利要求1-7任一项所述的支撑腿伸缩结构，其特征在于，所述支撑腿基座(2)设有第二翻边(24)，当所述支撑腿基座(2)被向前拉至最外侧时，所述第二翻边(24)与所述压块(31)的上表面抵接。
  9. 根据权利要求8所述的支撑腿伸缩结构，其特征在于，所述压块(31) 的上表面还设有与所述第二翻边(24)配合的限位凸块(311)。
  10. 一种儿童安全座椅，其特征在于，包括如权利要求1-9任一项所述的支撑腿伸缩结构。
PCT/CN2022/101083 2021-07-30 2022-06-24 一种支撑腿伸缩结构及儿童安全座椅 WO2023005535A1 (zh)

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