A high-strength bolt

By designing high-precision threads, anti-corrosion layers, and a flipping mechanism on the bolts, the problem of tightening and disassembling caused by bolt head deformation and stripping is solved, achieving efficient and stable tightening operation and improving the applicability and maintainability of the bolts.

CN224315338UActive Publication Date: 2026-06-02QUANZHOU HONGYU MASCH MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QUANZHOU HONGYU MASCH MFG CO LTD
Filing Date
2025-09-15
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Bolt heads are prone to deformation and stripping, making tightening and disassembly difficult, time-consuming and labor-intensive.

Method used

A high-strength bolt was designed with a high-precision thread and an anti-corrosion layer on the screw. A rotating plate was rotatably installed inside the bolt head. The rotating plate was equipped with a flipping mechanism, including a rotating groove, a rotating rod and a disc, which was used to drive the rotating plate to flip and provide additional screwing grooves to solve the problem of stripped threads.

Benefits of technology

It enables efficient and stable tightening operations even when the bolt head is deformed and stripped, improving tightening efficiency and convenience, and saving time and labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of bolt technology and provides a high-strength bolt, including a screw with high-precision threads, a galvanized layer and an anti-corrosion layer, the anti-corrosion layer being located outside the galvanized layer; a bolt head with a rotating plate rotatably mounted inside, the top of the rotating plate having a first groove and a second groove respectively; and a flipping mechanism disposed on the rotating plate for driving the rotating plate to flip. The high-strength bolt provided by this solution effectively solves the problem of tightening and disassembling traditional bolts caused by head deformation and thread stripping, greatly improving the efficiency and convenience of tightening operations, and saving time and labor costs.
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