一种具有防爆功能的矿用车多路换向阀
By introducing an oil control chamber and a safety relief valve into the multi-way directional valve of mining trucks, the safety hazards and energy consumption problems caused by the unreliability of pneumatic control in existing multi-way directional valves of mining trucks have been solved, realizing automatic pressure relief and explosion-proof functions, and improving the safety and reliability of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG GAOYU HYDRAULIC PRESS CO LTD
- Filing Date
- 2026-05-22
- Publication Date
- 2026-07-17
AI Technical Summary
The existing multi-way directional valves for mining trucks rely on pneumatic control to drive the valve stem assembly back to the neutral position for pressure relief, which makes it impossible to respond promptly to abnormal pressure at the working port, resulting in safety hazards and energy waste.
A multi-way reversing valve for mining trucks with explosion-proof function was designed. By setting an oil control chamber and a safety relief valve on the valve stem assembly, automatic overload protection and pressure relief functions are realized. When the pressure at the working connection port increases, the valve stem assembly automatically moves to the neutral position, cutting off the oil inlet and the working connection port to prevent hydraulic pipeline rupture and cylinder explosion.
It achieves automatic pressure relief without relying on pneumatic control signals, preventing hydraulic pipeline rupture and cylinder explosion, improving system safety and reliability, and reducing energy consumption.
Smart Images
Figure CN122407628A_ABST