Anti-loose wear-resistant nut for lock catch of automobile door lock

By installing an outer hexagonal wear-resistant layer on the nuts of the car door lock system and adding a loosening mechanism, the problems of loosening and wear resistance of traditional nuts are solved, and higher wear resistance and loosening effects are achieved, extending service life and reducing maintenance costs.

CN222650323UActive Publication Date: 2025-03-21JIAXING BOYU METAL CO LTD
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Patent Information

Application Number
CN202421532727.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-29
Publication Date
2025-03-21
Estimated Expiration
2034-06-29

AI Technical Summary

Technical Problem

The nuts of traditional automotive door lock systems are prone to loosen due to vibration and temperature changes during long-term use, and have poor wear resistance, resulting in shorter service life and increased maintenance costs.

Method used

An anti-loosening and wear-resistant nut of the automobile door lock lock is designed. By placing an outer hexagonal wear-resistant layer on the outer wall of the inner hexagonal wear-resistant layer, multiple anti-loosening mechanisms are fixedly connected on the top of the outer hexagonal wear-resistant layer, ensuring the precise positioning of the nut and enhancing the wear-resistant performance, while increasing the anti-loosening effect when the nut is connected to the bolt.

Benefits of technology

It effectively solves the problems of loose nuts and insufficient wear resistance, improves the overall wear resistance and anti-loosening effect of nuts, extends service life and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model discloses an automobile door lock catch anti-loose wear-resistant nut which comprises an inner hexagonal layer, and a threaded hole is formed in the inner hexagonal layer. The outer wall of the inner hexagonal layer is sleeved with an outer hexagonal wear-resistant layer; a plurality of anti-loosening mechanisms are fixedly connected to the top of the outer hexagonal wear-resistant layer, each anti-loosening mechanism comprises an L-shaped fixing block, a sleeve is fixedly connected to one side of the fixing block, a sliding plate and a spring are arranged in the sleeve, a pull rod is connected to one side of the sliding plate, one end of the pull rod penetrates through the fixing block and is connected with a pull block, and a connecting rod is fixedly connected to the other side of the sliding plate; one end of the connecting rod penetrates through the sleeve and is fixedly connected with a pressing block; the pull rod is sleeved with the spring, and the two ends of the spring are fixedly connected with the sliding plate and the fixing block respectively. The outer hexagonal wear-resistant layer is sleeved on the outer wall of the inner hexagonal layer, wear resistance is enhanced, the top of the outer hexagonal wear-resistant layer is fixedly connected with a plurality of anti-loosening mechanisms, the side wall of a bolt screw can be tightly pressed, and the anti-loosening effect when the nut is connected with the bolt is achieved.
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