A stroller seat base plate mounting and fixing device

CN224617764UActive Publication Date: 2026-08-11HANCHUAN CHUNHUI CHILDRENS PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-14
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

目前现有的儿童推车中,座椅底板通常通过螺钉、卡扣或简单的插接方式固定在推车车架上,而此种方式在使用的过程中不够便捷,且不能够灵活地适用不同推车车架,同时也不具备锁定结构,使座椅底板容易脱落

Benefits of technology

本实用新型,通过在连接柱的顶部设置的安装板,而连接柱可通过螺栓以及安装板与底板本体进行安装,同时安装固定机构与固定座可通过销钉固定在横杆的表面,故而在使用的过程中,使安装固定机构能够适用于不同尺寸的底板本体以及车架的安装使用,从而提高了装置的灵活性。

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Abstract

This utility model belongs to the field of stroller technology, specifically relating to a stroller seat base mounting and fixing device, including a frame, with a crossbar fixedly installed inside the frame; a mounting and fixing mechanism is movably mounted on one side of the crossbar via a fixing seat; wherein, the mounting and fixing mechanism includes a housing fixedly installed on one side of the fixing seat, a connecting column slidably installed inside the housing, and a locking component provided inside the housing, one end of which has a groove, allowing the locking component to rotate and engage with the stop bar. This utility model, through the cooperation of the mounting and fixing mechanism and the fixing seat, can be flexibly applied to the mounting and fixing of different seat bottoms and different frames, and can lock after installation to prevent detachment.
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Description

Technical Field

[0001] This utility model belongs to the field of children's stroller technology, specifically relating to a stroller seat base mounting and fixing device. Background Technology

[0002] A stroller is a tool designed specifically for the convenience of carrying infants or toddlers. It is usually made of materials such as metal, plastic, and fabric, with a certain structural strength to ensure safety, and is lightweight and portable for parents or caregivers to use. Strollers are usually equipped with a seat, and the installation of the seat and the stroller frame is usually designed to be detachable, thus requiring a structure for installing and fixing the seat base.

[0003] Problems with existing technology: Currently, in existing strollers, the seat base is usually fixed to the stroller frame by screws, clips, or simple plug-in methods. However, this method is not convenient to use, cannot be flexibly adapted to different stroller frames, and does not have a locking structure, making the seat base easy to fall off. Utility Model Content

[0004] The purpose of this utility model is to provide a stroller seat base mounting and fixing device, which can be flexibly applied to the mounting and fixing of different seat bottoms and different frames through the cooperation of the mounting and fixing mechanism and the fixing seat, and can be locked after installation to prevent falling off.

[0005] The specific technical solution adopted by this utility model is as follows: A stroller seat base mounting and fixing device includes a frame, wherein a crossbar is fixedly installed inside the frame; One side of the crossbar is movably mounted with a fixing mechanism via a fixed seat; The mounting and fixing mechanism includes a housing fixedly mounted on one side of the fixing base, a connecting column slidably mounted inside the housing, and a locking component inside the housing. One end of the locking component has a groove so that the locking component can be rotated and engaged with the stop bar.

[0006] The fixing seat is fixedly connected to the mounting and fixing mechanism. The fixing seat is inserted into the crossbar. A pin is inserted into the top of the fixing seat, and the pin passes through the fixing seat and the crossbar.

[0007] The top of the connecting column is provided with an installation plate, so that the connecting column is fixedly installed to the base plate body by bolts. There are four sets of installation and fixing mechanisms, which are located at the four corners of the bottom of the base plate body.

[0008] The two sides of the housing are mirror-shaped through slots, and the through slots are quarter-circular. The locking assembly is slidably installed with the housing through the through slots.

[0009] The locking assembly includes a retainer rotatably mounted inside the housing, and a locking screw is threaded onto one side of the retainer via a fixing rod.

[0010] The locking assembly also includes a movable rod slidably mounted on one side of the fixed rod, and a spring abuts against the fixed rod.

[0011] The fixed rod is slidably installed with the housing through a through groove, and a locking block is provided on one side of the movable rod. The locking screw pushes the movable rod to cause the locking block to engage with the housing.

[0012] The technical effects achieved by this utility model are as follows: This utility model features an installation plate on the top of the connecting column, which can be installed on the base plate body via bolts and the installation plate. The mounting and fixing mechanism and the fixing seat can be fixed to the surface of the crossbar with pins. Therefore, during use, the mounting and fixing mechanism can be used for the installation of base plates and frames of different sizes, thereby improving the flexibility of the device.

[0013] This utility model features a locking assembly inside the housing, with a stop bar fixedly connected to both sides of the connecting column. One end of the locking assembly has a groove; when the grooves of the two sets of card seats are vertically upward, the stop bar of the connecting column can be engaged in the groove. Simultaneously, the locking screw can rotate the fixing rod and card seats, causing the groove to rotate 90 degrees and locking the stop bar. Furthermore, the threads of the locking screw and fixing rod, combined with the action of the movable rod, lock the position of the card seats, thus preventing the risk of the base plate falling off. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the overall installation structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the mounting and fixing mechanism in this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the shell in this utility model; Figure 4 This is a schematic diagram of the locking assembly structure in this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 1. Frame; 2. Base plate body; 3. Mounting and fixing mechanism; 31. Housing; 32. Connecting column; 33. Stop bar; 34. Locking assembly; 341. Card seat; 342. Fixing rod; 343. Locking screw; 344. Moving rod; 345. Spring; 4. Fixing seat; 5. Crossbar. Detailed Implementation

[0016] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0017] like Figure 1-4 As shown, a stroller seat base mounting and fixing device includes a frame 1, and a crossbar 5 is fixedly installed inside the frame 1; A mounting and fixing mechanism 3 is movably installed on one side of the crossbar 5 via a fixing seat 4; The mounting and fixing mechanism 3 includes a housing 31 fixedly mounted on one side of the fixing base 4. A connecting column 32 is slidably mounted inside the housing 31. A locking component 34 is provided inside the housing 31. One end of the locking component 34 has a groove so that the locking component 34 can be rotated and engaged with the stop bar 33.

[0018] See attached document Figure 1 , Figure 2 and Figure 3 In this embodiment, the fixed base 4 is fixedly connected to the mounting and fixing mechanism 3, the fixed base 4 is inserted into the crossbar 5, and a pin is inserted into the top of the fixed base 4, and the pin passes through the fixed base 4 and the crossbar 5.

[0019] In the above embodiment, since two sets are provided and fixedly connected to the frame 1, the mounting and fixing mechanism 3 can be fixed to the surface of the crossbar 5 by opening through holes on the surface of the crossbar 5 and the fixing seat 4, and by passing pins through the crossbar 5 and the fixing seat 4.

[0020] Furthermore, since the mounting and fixing mechanism 3 and the fixing seat 4 can be easily disassembled from the surface of the crossbar 5, the mounting and fixing mechanism 3 can be used to install on different sizes of the base plate body 2 and the frame 1.

[0021] Specifically, a mounting plate is provided on the top of the connecting column 32 of the mounting and fixing mechanism 3. The connecting column 32 can be fixedly installed with the base plate body 2 by means of the mounting plate and bolts, thereby further improving the practicality of the mounting and fixing mechanism 3. The mounting and fixing mechanism 3 is provided in four sets and is located at the four corners of the bottom of the base plate body 2, so as to ensure the stable installation and fixing of the base plate body 2 and the frame 1.

[0022] It should be noted that the connecting column 32 is fixedly installed with the base plate body 2, while the housing 31 and the locking component 34 are fixedly installed with the crossbar 5. Therefore, during the installation of the base plate body 2 and the frame 1, the connecting column 32 and the housing 31 can be inserted into each other, thereby locking under the action of the locking component 34.

[0023] Please refer to the appendix for details. Figure 3 and Figure 4 Through slots are mirrored on both sides of the housing 31, and the through slots are quarter-circular. The locking assembly 34 is slidably installed with the housing 31 through the through slots.

[0024] According to the above structure, the locking component 34's card holder 341 is fixedly installed inside the housing 31. At the same time, a locking screw 343 is threadedly installed on one side of the card holder 341 through the fixing rod 342. Therefore, the fixing rod 342 and the card holder 341 can be rotated by the locking screw 343, thereby adjusting the card slot of the card holder 341 to engage with the stop rod 33, thereby achieving the locking of the connecting column 32 and the housing 31.

[0025] It is worth noting that a spring 345 is also abutting between the movable rod 344 and the fixed rod 342. Therefore, after the connecting column 32 and the housing 31 are locked, the movable rod 344 can be moved by rotating the locking screw 343. Since a locking block is provided on one side of the movable rod 344, the locking screw 343 can be used to push the movable rod 344 to drive the locking block to engage with the housing 31, thereby locking the position of the fixed rod 342.

[0026] The working principle of this utility model is as follows: the connecting column 32 is fixed to the bottom of the base plate body 2 by using bolts, and the housing 31 is fixed to the surface of the crossbar 5 of the frame 1 by the fixing seat 4 and the pin. Then the base plate body 2 and the frame 1 can be inserted and installed. After the connecting column 32 drives the stop bar 33 to be inserted into the housing 31, the fixing rod 342 and the card seat 341 are rotated by rotating the locking screw 343. The connecting column 32 can be locked by the card slot of the card seat 341 and the stop bar 33. After the locking screw 343 is rotated, the movable rod 344 is pushed to drive the card blocks installed on both sides to engage with the housing 31, so that the base plate body 2 and the frame 1 can be installed and fixed.

[0027] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A stroller seat base mounting and fixing device, characterized in that, include: The frame (1) has a crossbar (5) fixedly installed inside the frame (1); One side of the crossbar (5) is movably mounted with a mounting and fixing mechanism (3) via a fixing seat (4); The mounting and fixing mechanism (3) includes a housing (31) fixedly installed on one side of the fixing base (4). A connecting column (32) is slidably installed inside the housing (31). A locking component (34) is provided inside the housing (31). A groove is provided at one end of the locking component (34) so ​​that the locking component (34) can be rotated and engaged with the stop bar (33).

2. The stroller seat base plate mounting and fixing device according to claim 1, characterized in that: The fixed seat (4) is fixedly connected to the mounting and fixing mechanism (3), the fixed seat (4) is inserted into the crossbar (5), and a pin is inserted into the top of the fixed seat (4), and the pin passes through the fixed seat (4) and the crossbar (5).

3. The trolley seat base mounting and fixing device according to claim 1, characterized in that: The top of the connecting column (32) is provided with an installation plate, so that the connecting column (32) is fixedly installed to the base plate body (2) by bolts. The installation and fixing mechanism (3) is provided in four sets and is located at the four corners of the bottom of the base plate body (2).

4. The trolley seat base mounting and fixing device according to claim 1, characterized in that: The two sides of the housing (31) are mirrored with through slots, and the through slots are quarter-circular. The locking component (34) is slidably installed with the housing (31) through the through slots.

5. The trolley seat base mounting and fixing device according to claim 4, characterized in that: The locking assembly (34) includes a retainer (341) rotatably mounted inside the housing (31), and a locking screw (343) is threadedly mounted on one side of the retainer (341) via a fixing rod (342).

6. The stroller seat base plate mounting and fixing device according to claim 5, characterized in that: The locking assembly (34) also includes a movable rod (344) slidably mounted on one side of the fixed rod (342), and a spring (345) abuts against the fixed rod (342).

7. The trolley seat base mounting and fixing device according to claim 6, characterized in that: The fixed rod (342) is slidably installed with the housing (31) through the through groove. A locking block is provided on one side of the movable rod (344). The locking screw (343) pushes the movable rod (344) to drive the locking block to engage with the housing (31).