Large slide rail directly connected with unlocking piece on upper slide rail

By designing a direct-connection unlocking component on a large slide rail, and employing a left slide rail component, a right slide rail component, and an unlocking mechanism, the problems of high installation position requirements and unstable unlocking in existing technologies are solved, achieving reliable unlocking and convenient installation.

CN224490743UActive Publication Date: 2026-07-14ZHEJIANG LONGSHENG AUTO PARTS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG LONGSHENG AUTO PARTS TECH CO LTD
Filing Date
2025-07-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing unlocking components for large sliding rails have issues such as high positional requirements, incomplete unlocking, or failure during seat installation. Furthermore, the relative position of the unlocking component and the sliding rail cannot be guaranteed, resulting in unstable unlocking status.

Method used

A large slide rail with a direct connection to the unlocking component on the upper slide rail was designed. It includes a left slide rail component, a right slide rail component, and an unlocking mechanism. The unlocking mechanism consists of a left unlocking component, a right unlocking component, a crossbar, and a handle, which are connected by nuts. The unlocking component adopts a rubber shock-absorbing pad and a rotatable bushing structure to ensure unlocking reliability and easy installation.

Benefits of technology

The unlocking mechanism achieves reliability and stability, is easy to install, has a wide range of applications, and meets the usage requirements of seats.

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Abstract

This utility model relates to a large slide rail directly connected to an unlocking component on an upper slide rail, which is a component in a car seat. The utility model includes a left slide rail component, an unlocking mechanism, and a right slide rail component. The left and right slide rail components are symmetrical and have identical structures. They are connected by an unlocking mechanism, which includes a left unlocking component, a right unlocking component, a crossbar, and a handle. One end of the crossbar is connected to the left unlocking component, and the other end is connected to the right unlocking component. The handle is fixed to the crossbar. Both the left and right unlocking components include a fixed bracket, a bushing, a torsion spring, a pressure plate, a shaft, a bushing, and a retaining ring. The pressure plate is connected to the shaft, the bushing is rotatable on the shaft and is axially limited by the retaining ring, and the pressure plate is fixed by fitting into the crossbar. The bushing engages with a rotating hole in the fixed bracket, and the torsion spring is fitted into the crossbar, with one end connected to the pressure plate and the other end connected to the fixed bracket. This utility model has a reasonable structure, reliable unlocking, convenient installation, wide applicability, and meets various usage requirements.
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