一种具有压力补偿功能的液压阀
By designing a hydraulic valve with pressure compensation function and adopting a compensation mechanism and a pressure relief mechanism, the problem that existing hydraulic valves cannot adjust the spring preload is solved, thus achieving stable control of pressure parameters and safe protection of equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU YUANSHANG PRECISION MASCH CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-17
AI Technical Summary
When installing a new valve body, the preload of the spring in the existing hydraulic valve cannot be adjusted according to the actual situation, resulting in poor pressure control accuracy, severe wear of the sealing ring, inability to effectively counteract pressure fluctuations, and affecting the stability and lifespan of the equipment.
A hydraulic valve with pressure compensation function was designed, which includes a compensation mechanism and a pressure relief mechanism. The compensation mechanism adjusts the spring base through a threaded plug and a hexagonal screw to achieve pressure stability; the pressure relief mechanism protects the equipment safety by locking the rupture disc and the outer shell.
Stable control of pressure parameters was achieved, avoiding hydraulic shock and seal wear, ensuring safe operation of the equipment under extreme conditions, and improving the stability and lifespan of the equipment.
Smart Images
Figure CN224515516U_ABST
Abstract
Claims
1. Hydraulic valve with pressure compensation, comprising a valve body (1), characterized in that: The inner wall of the valve body (1) is provided with a compensation mechanism (2), which is used to stabilize the pressure, offset pressure fluctuations and balance the pressure difference. The bottom wall of the valve body (1) is provided with a pressure relief mechanism (3), which is used to quickly release the internal medium and reduce the pressure to a safe range when the pressure exceeds the preset safety value. The compensation mechanism (2) includes a threaded plug (201), which is disposed on the front side of the inner wall of the valve body (1). A hexagonal screw (202) is rotatably connected to the inner wall of the threaded plug (201). A sealing ring (203) is fixedly connected to the rear side of the outer wall of the threaded plug (201). A spring base (204) is threadedly connected to the rear side of the outer wall of the hexagonal screw (202). A spring (205) is fixedly connected to the rear side of the outer wall of the spring base (204). A valve core (206) is fixedly connected to the rear side of the outer wall of the spring (205).
2. The hydraulic valve with pressure compensation function according to claim 1, characterized in that: The pressure relief mechanism (3) includes a fastening shank (302), which is disposed on the bottom wall of the valve body (1). A bolt (303) is threaded onto the inner wall of the fastening shank (302). A first outer shell (301) is rotatably connected to the outer wall of the bolt (303). A second outer shell (308) is rotatably connected to the right side of the outer wall of the first outer shell (301). A clamping clamp (306) is fixedly connected to the left side of the outer wall of the second outer shell (308). The bolt (303) engages with the clamping clamp (306). Hydraulic pipes (307) are provided on the upper and lower ends of the inner walls of the first outer shell (301) and the second outer shell (308) on adjacent sides. A rupture disc (305) is installed on the bottom wall of the upper hydraulic pipe (307). The upper hydraulic pipe (307) is fixedly connected to the bottom wall of the valve body (1). Multiple screws (304) are threaded at equal intervals on the outer walls of the upper and lower hydraulic pipes (307).
3. The hydraulic valve with pressure compensation function according to claim 1, characterized in that: The valve body (1) has a fixing plate (7) fixedly connected to both the left and right sides of its outer wall. The top wall of the fixing plate (7) has screw holes (6) at the front and rear ends.
4. The hydraulic valve with pressure compensation function according to claim 1, characterized in that: The valve body (1) is fixedly connected to an oil pipe (10), and the top wall of the oil pipe (10) is threadedly connected to a pressure gauge (9).
5. The hydraulic valve with pressure compensation function according to claim 1, characterized in that: An oil inlet connector (11) is installed on the front side of the outer wall of the valve body (1). A sealing ring (12) is fixedly connected to the outer wall of the oil inlet connector (11). An oil outlet connector (13) is installed on the left side of the front side of the outer wall of the valve body (1). A sealing ring (14) is fixedly connected to the outer wall of the oil outlet connector (13).
6. The hydraulic valve with pressure compensation function according to claim 1, characterized in that: Multiple anti-collision plates (4) are installed at the four corners of the outer wall of the valve body (1), and screws (5) are threaded onto the outer wall of the anti-collision plates (4).
7. The hydraulic valve with pressure compensation function according to claim 1, characterized in that: The valve body (1) is fixedly connected to the rear side of the outer wall of the valve body (1), and the top wall of the oil pipe (17) is fixedly connected to the energy storage tank (8).
8. The hydraulic valve with pressure compensation function according to claim 1, characterized in that: A screw (16) is rotatably connected to the rear side of the outer wall of the valve body (1), and an adjusting handle (15) is fixedly connected to the rear side of the outer wall of the screw (16).