Spring clip tool-less fastener

By designing a spring-loaded tool-free fastener, and through the design of steel plates and fastener components, and the combination of steel plates and expansion slot components, the problems of non-adjustable fastener area and tool-required installation are solved. This achieves adjustable fastener area and tool-free operation, improving applicability and convenience.

CN224479127UActive Publication Date: 2026-07-10东莞市昌骏实业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
东莞市昌骏实业有限公司
Filing Date
2025-07-07
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing fasteners cannot be adjusted in size according to needs, and require tools for installation, which reduces their applicability and convenience.

Method used

A spring-loaded tool-free fastener has been designed, comprising a steel strip, a snap-fit ​​assembly, and an expansion assembly. The area is adjusted by moving the steel strip within the expansion slot, and the fastener is fixed using a spring and a toothed rack, eliminating the need for tools.

Benefits of technology

Adjustable fastener area improves applicability and ease of installation, enhancing the practicality and efficiency of fasteners.

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Abstract

This utility model discloses a spring-loaded, tool-free fastener, belonging to the field of fastener technology. It includes: a steel bar with several positioning holes on one side wall and an expansion groove on the other side wall; a snap-fit ​​assembly located at one end of the steel bar for securing it to an object; and an expansion assembly located on the inner wall of the expansion groove for changing the fastening area of ​​the steel bar. In this utility model, by providing the expansion assembly, the steel plate moves within the expansion groove of the steel bar, allowing adjustment of its position as needed, thereby changing the overall area of ​​the steel bar. This achieves an adjustable contact area for the fastener, enabling adjustments based on different requirements, thus improving its applicability and practicality.
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