一种配备双速调节机构的截止阀
By designing a dual-speed regulating mechanism and a clamping component, the problem of insufficient flow regulation accuracy in existing shut-off valves has been solved, enabling micro-regulation and stable flow control in the petroleum industry, and improving the accuracy and safety of regulation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU AOWEI MASCH CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-17
AI Technical Summary
The fixed transmission ratio of existing shut-off valves results in insufficient flow regulation accuracy, which cannot meet the needs of the petroleum industry for micro-adjustment. Furthermore, in high-viscosity media and vibration environments, the flow fluctuations are prone to exceed the allowable range of the process.
The dual-speed regulating mechanism uses a large gear and a small gear to mesh and drive, forming a speed reduction transmission relationship. Combined with the clamping component and anti-slip sleeve, it ensures that the valve stem rotates at a lower speed, achieving micro-flow control and maintaining stability in a vibration environment.
It achieves precise adjustment of flow fluctuations within ±5%, avoiding sudden changes in flow caused by vibration and medium pressure fluctuations, improving the stability and safety of adjustment, and reducing maintenance costs.
Smart Images
Figure CN224516103U_ABST
Abstract
Claims
1. A shut-off valve equipped with a double speed adjustment mechanism, comprising a shut-off valve body (1), characterized in that: A dual-speed regulating component (3) is installed on the transmission end of the valve stem (2) of the shut-off valve body (1). The dual-speed adjustment assembly (3) includes a large gear (301) and a small gear (302) meshing with the large gear (301). The large gear (301) is directly connected to the valve stem (2). The small gear (302) drives the valve stem (2) to rotate by driving the large gear (301) to rotate. Handwheels A (303) that drive the rotation of the small gear (302) and the large gear (301) are installed above each other.
2. A double speed regulating mechanism equipped stop valve according to claim 1, characterized in that: The dual-speed adjustment assembly (3) also includes support rods (304) fixed on both sides of the top of the shut-off valve body (1), and a connecting shell (305) is fixedly connected to the top of the support rods (304). A rotating rod (306) is fixedly fixed through the center of the large gear (301) and the small gear (302). The interior of the connecting shell (305) is connected to the bearing A (308) through the connecting plate (307) on both the upper and lower sides of the large gear (301) and the small gear (302). The outer wall of the rotating rod (306) is fixed to the inner ring of the bearing A (308), so that the rotating rod (306) is rotated and supported by the bearing A (308).
3. A double speed regulating mechanism equipped stop valve according to claim 2, characterized in that: The bottom end of the rotating rod (306) on the large gear (301) is fixed to the top end of the valve stem (2), and the handwheel A (303) is fixed to the top ends of the two rotating rods (306).
4. A double speed regulating mechanism equipped stop valve according to claim 1, characterized in that: The top of the shut-off valve body (1) is also equipped with a clamping assembly (4) to restrict the rotation of the valve stem (2).
5. A double speed regulating mechanism equipped stop valve according to claim 4, characterized in that: The clamping assembly (4) includes a vertical plate (401) fixed to the top of the shut-off valve body (1). The vertical plate (401) is threaded with a screw (402), and the head of the screw (402) is rotatably connected to an arc-shaped clamping plate (403) via a bearing B (407). The top of the shut-off valve body (1) is also fixedly connected to a guide rail (404). The bottom end of the arc-shaped clamping plate (403) is slidably connected to the guide rail (404) via a slider (405). The end of the screw (402) is fixedly connected to a handwheel B (406).
6. A double speed regulating mechanism equipped stop valve according to claim 5, characterized in that: Friction patterns are formed on the contact surface between the arc-shaped clamping plate (403) and the valve stem (2).
7. A double speed regulating mechanism equipped stop valve according to claim 5, characterized in that: The grips of both handwheel A (303) and handwheel B (406) are fitted with detachable anti-slip sleeves.