Multi-angle adjustable ball joint mechanism

By designing a hollow sphere that matches a top cover with a conical or curved surface transition, combined with a guide shaft and a movable cover, the stability problem of the ball joint mechanism during multi-angle adjustment is solved, achieving stable positioning and automatic return-to-center effect, and enhancing wear resistance and aesthetics.

WO2026123525A1 Publication Date: 2026-06-18XIANG FAN
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
XIANG FAN
Filing Date
2025-04-16
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

The existing ball joint mechanism has a large tilting torque when adjusting at multiple angles, which affects the positioning and automatic return-to-center effect.

⚗Method used

Design a multi-angle adjustable ball joint mechanism, which uses a hollow ball structure to cooperate with a top cover with a conical or arc-shaped transition surface, combined with a guide shaft and a movable cover, and uses multi-stage elastic elements to provide stable support force, ensuring that the ball is positioned at any angle and automatically returns to center.

🎯Benefits of technology

It achieves good contact during large-angle rotation, ensures stable positioning and automatic return of the ball, prevents foreign objects from entering the gap, and improves the wear resistance and aesthetics of the structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

A multi-angle adjustable ball joint mechanism, comprising a ball body (1) and a housing (2) capable of accommodating the ball body. A ball stud is provided at the upper part of the ball body. The ball body is of a hollow structure and is provided with a large circular hole at the lower part. An elastic device is further mounted in the housing, and the elastic device comprises an upper cover (3), an elastic member, and a lower cover (4) from top to bottom. A protruding truncated cone is provided in the middle of an upper end face of the upper cover, a conical or curved surface transition is formed between the periphery of the truncated cone and the upper end face of the upper cover, and the diameter of the truncated cone is less than that of the large circular hole of the ball body. The upper cover can be in contact with the ball body and can move up and down in the housing, the position of the lower cover in the housing is adjustable or unadjustable, and the lower end of the housing is provided with a base (5). When the ball body is pulled to rotate, the lower part of the ball body can act on the conical or curved surface of the upper cover, so that the ball body always maintains good contact with the upper cover, thereby ensuring that the elastic device provides sufficient supporting force to the ball body; and as the rotation angle of the ball body increases, the elastic member exerts a greater counteracting elastic force on the upper cover and the ball body, thereby ensuring the positioning or automatic centering effect of the ball body.
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