一种防泄漏截止阀
By employing a double-rod structure and scale design, combined with a turntable and locking mechanism, the leak-proof shut-off valve achieves accurate adjustment and stability, solving the error and displacement problems of existing manual shut-off valves and reducing the risk of leakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU WANXIANG POLYTECHNIC
- Filing Date
- 2025-09-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing manual shut-off valves are prone to errors during adjustment, and the valve disc may shift due to external environment and equipment resonance during long-term use, increasing the risk of leakage.
It adopts a double-rod structure, with scale lines on the second valve rod. Combined with the turntable and handwheel locking mechanism, it can realize real-time judgment and accurate adjustment of the valve disc position. A nut is added for locking to prevent displacement, and the synchronous movement of the valve rod and support design improves stability.
It improves the accuracy of valve disc position adjustment, reduces the risk of leakage, enhances the stability of the leak-proof shut-off valve in use and structure, and adapts to the needs of use in different environments.
Smart Images
Figure CN224516110U_ABST
Abstract
Claims
1. A leak-proof stop valve comprising a valve body and a valve disc arranged to slide up and down inside the valve body, and a hand wheel connected to a valve stem and a valve stem bottom on the valve body to drive the valve stem and the valve stem bottom, respectively, characterized in that: The valve disc has a second valve stem at its bottom, and the second valve stem has scale lines marked on its body. The valve stem and the second valve stem slide within the first channel and the second channel provided inside the valve body, respectively.
2. The leak-tight shut-off valve according to claim 1, characterized in that: The valve disc includes a first end cap and a second end cap that are detachably connected to one end of the valve stem and the other end cap, and rubber rings that are sleeved around the outer edges of the first end cap and the second end cap.
3. The leak-tight shut-off valve according to claim 2, characterized in that: The second valve stem is rotatably mounted inside the stem body and a turntable connected to the third valve stem is located in the cavity formed between the first end cover and the second end cover. The first end cover, the second end cover and the turntable are all provided with multiple sets of through holes with corresponding positions. A second handwheel is connected to the corresponding end of the third valve stem away from the turntable and a locking element that acts to lock the second valve stem is rotatably mounted on the second handwheel. Two sets of marking lines corresponding to the positions of the through holes are respectively marked around the corresponding positions of the second handwheel and the second valve stem.
4. The leak-tight shut-off valve according to claim 1, characterized in that: Both ends of the valve body located on the first channel and the second channel are detachably equipped with valve covers, and the two sets of valve covers are respectively equipped with a first support and a second support that act on the periphery of the first valve stem and the second valve stem.
5. The leak-proof shut-off valve according to claim 3, characterized in that: The handwheel and the second handwheel are both detachably mounted on the valve stem and the third valve stem respectively via a spline structure.