一种组合式阀门
By introducing filter components and guide groove structures into the combined valve, the problem of low-pressure fluid impurities affecting sealing performance is solved, reliable sealing of high-pressure fluids is achieved, leakage is avoided, and the normal operating performance of the pipeline system is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG DONGYA VALVE CO LTD
- Filing Date
- 2026-06-05
- Publication Date
- 2026-07-17
AI Technical Summary
When impurities are present in the low-pressure fluid, the existing combined valves may fail to seal properly, causing high-pressure fluid leakage and affecting the normal operation of the pipeline system.
Design a combined valve comprising a high-pressure opening and closing mechanism and a low-pressure check mechanism. Utilize a filter assembly to filter the low-pressure fluid, preventing impurities from accumulating at the contact point between the moving and fixed valve discs. Ensure reliable sealing through guide grooves and seals.
It effectively prevents low-pressure fluid leakage and ensures good sealing when high-pressure fluid flows, thus improving the practicality and reliability of the valve.
Smart Images
Figure CN224516009U_ABST
Abstract
Claims
1. A combined valve, characterized in that, include: Valve body (1), wherein a high pressure flow channel (11), a low pressure flow channel (12) and a discharge flow channel (13) are provided inside the valve body (1), the high pressure flow channel (11) and the low pressure flow channel (12) are connected, and the discharge flow channel (13) is located at the connection between the high pressure flow channel (11) and the low pressure flow channel (12); The high-pressure opening and closing mechanism includes a valve seat (2), a valve ball (3) and a valve stem (4). The valve seat (2) is disposed in the high-pressure flow channel (11), the valve ball (3) is disposed in the high-pressure flow channel (11) and abuts against the valve seat (2), and the valve stem (4) is rotatably disposed on the valve body (1) and fixedly connected to the valve ball (3). The low-pressure check mechanism includes a fixed valve disc (5), a movable valve disc (6), and a filter assembly (7). The fixed valve disc (5) is fixedly installed in the low-pressure flow channel (12). The movable valve disc (6) is movably disposed in the low-pressure flow channel (12) to control the connection between the low-pressure flow channel (12) and the discharge flow channel (13). The filter assembly (7) is installed on the movable valve disc (6) to filter the fluid in the low-pressure flow channel (12). A guide groove (61) is formed between the movable valve disc (6) and the filter assembly (7), and a sealing element (62) is provided in the guide groove (61). The fixed valve disc (5) and the guide groove (61) are inserted into each other, and the sealing element (62) is used to abut against the end of the fixed valve disc (5).
2. A combination valve according to claim 1, wherein The filter assembly (7) includes: The first support (71) is barrel-shaped and has a first through hole (73) on its periphery. A first filter screen (75) is provided on the first through hole (73). The second support (72) is cylindrical and has a second through hole (74) on its circumference. A second filter screen (76) is provided on the second through hole (74). The second bracket (72) is installed inside the first bracket (71), and the fluid in the low-pressure flow channel (12) flows through the second filter screen (76) and the first filter screen (75) in sequence.
3. A combination valve according to claim 2, wherein The second bracket (72) is connected to the first bracket (71) by means of fasteners.
4. The combination valve of claim 2, wherein The first bracket (71) and the movable valve disc (6) are detachably connected.
5. A combination valve according to claim 4, wherein The first bracket (71) is provided with a threaded post (77), and the movable valve disc (6) is provided with a threaded hole (63). The threaded post (77) and the threaded hole (63) are adapted to be connected.
6. The combination valve of claim 1, wherein The inner wall of the movable valve disc (6) is provided with a positioning groove (64) arranged along the axial direction, and the outer wall of the fixed valve disc (5) is provided with a positioning protrusion (51) that is adapted to be inserted into the positioning groove (64).
7. The combination valve of claim 1, wherein It also includes an actuator (8), which is mounted on the valve stem (4) and is used to drive the valve stem (4) to rotate.
8. A combination valve according to claim 7, wherein The actuator (8) is a rotary handle.