A self-lubricating valve body structure
By adding a lubricating oil cup and lubrication groove to the valve body, and combining it with an oil-immersed ring and sealing ring design, the problems of unstable operation and leakage caused by wear between the valve stem and the valve body are solved, achieving higher operational reliability and service life.
CN224433549UActive Publication Date: 2026-06-30NINGBO CITY APPARATUS VALVE FACTORY
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO CITY APPARATUS VALVE FACTORY
- Filing Date
- 2025-09-01
- Publication Date
- 2026-06-30
Smart Images
Figure CN224433549U_ABST
Abstract
A self-lubricating valve body structure includes a valve body and a valve core. The valve body has a valve cavity and an inlet and an outlet respectively connected to the valve cavity. The inlet is located on the side wall of the valve body, and the outlet is located on the bottom wall of the valve body. The top wall of the valve body has a vertically penetrating mounting hole leading to the valve cavity. The valve core includes a valve stem slidably inserted into the mounting hole and a baffle located in the valve cavity and connected to the lower end of the valve stem. The valve stem is used to drive the baffle to rise and fall to open and close the outlet. The top wall of the valve body has a lubrication groove surrounding the upper end of the valve stem, and the lubrication groove is connected to the upper end of the mounting hole. A lubricating oil cup with an inner cavity is located above the valve body, and the lubricating oil cup has a pipe connecting from top to bottom to the lubrication groove. The above solution can significantly reduce the wear between the valve stem and the mounting hole, improve operational reliability, and extend the overall service life.
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