A rubber sleeve for automotive door wiring harness

CN224277062UActive Publication Date: 2026-05-26ANHUI NINGGUO JIABEILI RUBBER & PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202521719057.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-13
Publication Date
2026-05-26
Estimated Expiration
2035-08-13

AI Technical Summary

Technical Problem

The existing automotive door wiring harness rubber sleeves are made of pure rubber without any reinforcement structure. Long-term friction with the body sheet metal will accelerate wear and cracking, reduce service life, and affect the protective effect.

Method used

The telescopic sleeve made of EPDM rubber and the annular iron plate structure, combined with the magnetic connection mechanism, enhance mechanical support and connection stability. The addition of microencapsulated antioxidants improves wear resistance and prevents fatigue cracks.

Benefits of technology

It improves the structural strength and service life of the wiring harness rubber sleeve, prevents wear on the vehicle body sheet metal, and ensures the waterproof, dustproof and shock-absorbing protection of the wiring harness.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of wiring harness rubber sleeve technology, and more particularly to a rubber sleeve for automotive door wiring harnesses. It includes a main body mechanism for improving structural strength, on which a connecting mechanism for stable connection with the vehicle door body is provided. The main body mechanism includes a telescopic sleeve, with connecting tubes fixedly connected to both ends of the telescopic sleeve. Multiple annular iron plates are installed inside the telescopic sleeve, and circular plates are fixedly connected to each of the annular iron plates. This utility model significantly improves the overall structural strength of the device by setting up the main body mechanism. By using EPDM rubber and adding 5 phr microencapsulated antioxidants, the wear resistance of the telescopic sleeve and connecting tubes is improved, effectively resisting fatigue cracks caused by repeated bending. The multiple annular iron plates enhance mechanical support, disperse frictional stress, prevent accelerated wear and cracking of the vehicle body sheet metal, and improve the service life of the device.
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