A type of anti-slip wire double-head bolt

By combining the design of the nut structure, interlocking nuts and elastic elements, the problem of loosening of traditional double-ended bolts in vibration and impact environments is solved, achieving stepless precise adjustment and thread protection, and improving the reliability and efficiency of the connection.

CN224433064UActive Publication Date: 2026-06-30ZHEJIANG RUIBO AUTO PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG RUIBO AUTO PARTS CO LTD
Filing Date
2025-06-27
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional double-ended bolts are prone to loosening in environments with vibration, impact, or temperature changes, and adjusting the length requires disassembling parts, resulting in low efficiency and easy damage to the threads.

Method used

The design employs a combination of a nut structure, an interlocking nut, and first and second elastic elements to achieve a self-locking function. Furthermore, the adjustable structure enables stepless and precise adjustment, preventing damage to the threads during disassembly.

Benefits of technology

Significantly improves vibration and shock resistance, achieves stepless and precise adjustment, reduces thread wear, lowers maintenance costs, and enhances connection reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a double-headed bolt with anti-slip threads, relating to the field of mechanical fastener technology. It includes a double-headed bolt, a locking nut, an interlocking nut, and an adjusting structure. The double-headed bolt has an adjusting screw cavity, with both ends connected to a limiting rod and a mating ring via mounting blocks. The locking nut connects to a first elastic element via a mating groove and a mating hook, forming a self-locking mechanism with the interlocking nut. The adjusting structure consists of an adjusting screw and an adjusting rod; rotating the adjusting screw drives the double-headed bolts to move towards each other, achieving spacing adjustment. The first and second elastic elements apply elastic clamping forces to the locking nut and the interlocking nut respectively, forming a dual anti-loosening mechanism. This utility model combines anti-slip threads with convenient adjustment, making it suitable for mechanical connections in high-vibration environments.
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