High pressure rotary hinged joint
By using sealing bolts, steel balls, and a gland ring structure in the high-pressure rotary joint, the problems of high friction and leakage under high pressure are solved, achieving low-friction rotation and efficient sealing, making it suitable for high-pressure environments.
CN224326841UActive Publication Date: 2026-06-05NINGBO TIANYI HYDRAULIC PRESSURE EQUIP CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO TIANYI HYDRAULIC PRESSURE EQUIP CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-05
Smart Images
Figure CN224326841U_ABST
Abstract
The utility model discloses a high pressure rotary hinged joint, including sealed bolt and rotatable head, sealed bolt is provided with the light axle part cooperation with minimum inner hole gap, sealed bolt includes first threaded head, first step, second step, third step and second threaded head, is provided with the light axle part between second step and third step, and the inside of sealed bolt is provided with cross oil hole, rotatable head is provided with step cavity, and is provided with fourth step, fifth step, sixth step and seventh step in both ends of its minimum inner hole, and rotatable head is provided with fourth threaded head. Steel ball and gran circle are arranged between sealed bolt and screwed into joint and rotatable head. This new structure, because both ends are provided with steel ball, even in high pressure occasion, the friction of two parts is also smaller, can carry out manual rotation operation, and both ends are provided with gran circle, and high pressure oil liquid does not leak.
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