A valve cover and a shut-off valve
CN224453864UActive Publication Date: 2026-07-03浙江宝核工业科技集团有限公司
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 浙江宝核工业科技集团有限公司
- Filing Date
- 2025-09-04
- Publication Date
- 2026-07-03
AI Technical Summary
Technical Problem
The valve covers of the shut-off valves used in existing nuclear power plants are not interchangeable and need to be replaced according to different needs, resulting in material waste and poor economic efficiency.
Method used
A valve cover was designed, comprising a first cylindrical portion and a second cylindrical portion with a stepped structure, featuring a boss and a positioning hole, capable of supporting different components, and fixing an indicator rod, chain, and remote sleeve through the positioning hole, adapting to the needs of different types of shut-off valves.
Benefits of technology
It achieves the versatility of valve covers, can adapt to different types of shut-off valves, saves materials, meets various needs, and improves economy and applicability.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224453864U_ABST
Abstract
This utility model discloses a valve cover and a shut-off valve. The valve cover includes a valve cover body, which comprises a first cylindrical portion, a second cylindrical portion, and a base arranged sequentially in a vertical direction. A valve stem channel penetrating the valve cover body is formed on the first cylindrical portion, the second cylindrical portion, and the base in a vertical direction. A valve stem is rotatably connected within the valve stem channel. The outer diameter of the first cylindrical portion is smaller than the outer diameter of the second cylindrical portion. A boss protruding from the outer wall of the second cylindrical portion is provided at the junction of the first and second cylindrical portions. The upper surface of the boss is not lower than the upper surface of the second cylindrical portion. Two positioning holes symmetrically distributed relative to the second cylindrical portion are formed on the boss in a vertical direction. The valve cover has high versatility and can be used for different types of shut-off valves.
Need to check novelty before this filing date? Find Prior Art