A sealing structure of a valve
By introducing annular sealing rings, auxiliary channels for the annular sealing rings, and limiting block structures into the valves, the problem of incomplete valve sealing is solved, achieving effective control of the medium and a long service life of the sealing device, while reducing wear.
CN224266541UActive Publication Date: 2026-05-22肯拓流体控制技术(江苏)研究院有限公司
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 肯拓流体控制技术(江苏)研究院有限公司
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-22
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Figure CN224266541U_ABST
Abstract
The utility model relates to a kind of sealing structure of valve, belong to valve sealing technical field, including valve body, valve cover, valve stem and valve core, the valve core is installed in the lower end of valve stem, pass through valve stem rotation and drive valve core removal control medium inlet passage and the on-off of medium outlet passage, cooperation on-off hole is opened between the medium inlet passage and medium outlet passage;Sealing device for sealing is fixedly installed in the on-off hole;The valve core includes the stopper of the lower end of connecting valve stem and the multiple sets of limiting block of the lower end of stopper and limiting block can enter sealing device inside.It is close or far from sealing device by valve stem rotation and drive valve core removal in the utility model, to control the on-off of medium inlet passage and medium outlet passage, guarantee sealing effect, by auxiliary passage play buffer and reduce the wear of sealing device, play the effect of prolonging the service life of sealing device, and the medium in storage passage and second channel is passively extruded, can realize the effect of reverse sealing.
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