A cylinder joint assembly

CN224550513UActive Publication Date: 2026-07-24ZHUCHENG YIHE AXLE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUCHENG YIHE AXLE
Filing Date
2025-06-26
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing hydraulic cylinder joint assembly has poor sealing during rotation, which allows foreign matter to enter, causing wear on the ball head and affecting the stability of the connection.

Method used

A structure including an internally threaded cylinder connector, a ball pin, a dust cover, a wear-resistant ring, and a protective sleeve support is designed. The connection is fixed by a snap ring. The dust cover is made of rubber and has a serrated dust groove. Combined with the wear-resistant ring and lip structure, the sealing performance is improved. A wear-resistant ring is set on the inner side of the ball seat to stabilize the rotation of the ball head.

Benefits of technology

It achieves high sealing performance of the cylinder joint, preventing foreign matter from entering, improving the stability and service life of the ball head, reducing maintenance costs, and is suitable for intelligent and energy-saving hydraulic cylinder systems.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224550513U_ABST
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Abstract

A kind of oil cylinder joint assembly, including female threaded oil cylinder joint and ball pin, the main body of female threaded oil cylinder joint is cylindrical structure, and the ball head part of ball pin is located in cylindrical structure, the two ends of dust cover are fixedly connected with female threaded oil cylinder joint and ball pin ball stem middle part by snap ring respectively, the other end of female threaded oil cylinder joint cylindrical structure is covered with end cover, the inside of end cover is provided with cylindrical ball seat, the upper and lower edges of ball seat are bent inward, and the inside of ball seat is fixed with a layer of wear-resistant ring, and the middle part of wear-resistant ring is protruded to middle part, so that the upper side arc surface of wear-resistant ring is completely contacted with the ball head of ball pin.The utility model joint assembly adopts maintenance-free structure, realizes lifelong maintenance-free, reduces user maintenance cost;The utility model wear-resistant ring makes the ball head more stable in female threaded oil cylinder joint rotation, prevents up and down movement, additionally further sealing structure can be formed in bottom, so that lubricating oil and other lubricating substances around ball head can be better retained.
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