一种高精度抗震动调节针阀
By introducing a damping chamber and shock-absorbing components into the needle valve, combined with a dual locking mechanism, the problems of decreased adjustment accuracy and unstable locking caused by external vibration are solved, achieving high-precision flow control and stable flow regulation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FLUORMICRO (SHANGHAI) NEW MATERIALS CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-17
AI Technical Summary
Existing needle valves suffer from decreased adjustment accuracy and unstable locking when exposed to external vibrations, affecting high-precision flow control and causing system instability, especially in laboratory analysis, precision chemical processes, or medical equipment.
A high-precision anti-vibration regulating needle valve was designed. It uses a damping chamber and shock-absorbing components in the valve body to absorb vibration energy through a damping rod and connecting block. Combined with a dual locking mechanism, including the mechanical engagement of the locking block and the toothed part and an auxiliary locking mechanism, the valve needle position is kept stable.
It significantly improves the adjustment accuracy and flow stability in high vibration environments, enhances locking reliability, avoids flow fluctuations and position drift caused by vibration, and improves the operational stability of the system.
Smart Images
Figure CN224515980U_ABST
Abstract
Claims
1. A high-precision anti-vibration regulating needle valve, comprising a valve body and a valve needle, wherein the valve body is provided with an inlet channel and an outlet channel, and the lower end of the valve needle slides with a clearance fit with the outer periphery of the upper end of the outlet channel, characterized in that... ； The valve body has a damping chamber, and the damping chamber is equipped with a shock-absorbing component. The shock-absorbing component includes a connecting block. The valve needle includes a fixed section, which passes through the connecting block and is slidably connected to it. The two ends of the connecting block are hinged with damping rods. The valve body also has a drive chamber, the inner wall of the drive chamber is threaded, a drive block is provided in the drive chamber, the drive block is threadedly connected to the drive chamber, and the fixed section of the valve needle is fixedly connected to the drive block. A handwheel is rotatably and slidably provided on the valve body. A drive rod is slidably connected to the lower end of the handwheel. The drive rod is slidably connected to the drive block. A locking cavity is provided on the valve body. A toothed portion protruding towards its axis is provided on the inner wall of the locking cavity. A locking block that can engage with the toothed portion is fixedly connected to the lower end of the handwheel. The handwheel is also provided with a sliding locking ball, and the valve body is provided with a groove corresponding to the locking ball.
2. A high-precision anti-vibration regulating needle valve according to claim 1, characterized in that, An isolation valve is fixed on the valve needle, and the isolation valve is used to separate the water outlet channel from the damping cavity.
3. The high-precision anti-vibration regulating needle valve according to claim 1, characterized in that, A buffer spring is fitted around the outer periphery of the damping rod.
4. The high-precision anti-vibration regulating needle valve according to claim 1, characterized in that, A push-out spring is provided between the lock ball and the handwheel.
5. The high-precision anti-vibration regulating needle valve according to claim 1, characterized in that, The cross-section of the drive rod is not circular.
6. A high-precision anti-vibration regulating needle valve according to claim 1, characterized in that, The handwheel is provided with anti-slip texture.