Control Valve Sealing Structure With Rotation Suppression
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Solution Overview
Problem
Existing multi-passage control valves face challenges in maintaining effective sealing and preventing rotational movement of separate sealing and elastic components, which complicates assembly and increases friction, thereby requiring improved structural integration and positioning.
Innovation Solution
A control valve design featuring an integral structure of an elastic pad and sealing member, combined with a rotation suppression portion that limits clockwise or counterclockwise rotation relative to the valve body, utilizing protruding ribs and position-limiting connections to secure the sealing component in place, reducing friction and simplifying assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate sealing member and elastic pad structures are used, then sealing function is achieved, but structural complexity increases and assembly becomes difficult
Solution Approach 1:
The patent combines the sealing member and elastic pad into a single integrated sealing component. This merging eliminates the need for separate structures while maintaining both sealing and elastic functions, thereby reducing structural complexity and facilitating assembly without compromising sealing reliability
2Reliability
If separate sealing member and elastic pad structures are used, then sealing function is achieved, but assembly difficulty increases
Solution Approach 1:
By integrating the sealing member and elastic pad into one component, the patent reduces the number of parts that need to be assembled. This single integrated component can be installed as one unit, significantly simplifying the assembly process while ensuring reliable sealing function
3Device complexity
If no rotation suppression mechanism is provided, then structure remains simple, but sealing component rotates relative to valve body causing friction increase
Solution Approach 1:
The rotation suppression mechanism is designed to automatically limit rotational movement of the sealing component relative to the valve body through integrated positioning features. This self-limiting mechanism prevents excessive friction and wear without requiring external control systems, maintaining structural simplicity while improving ease of operation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The integrated structure and rotation suppression mechanism enhance sealing performance and reduce friction, facilitating easier assembly and operation of the control valve by limiting rotational movement and maintaining effective fluid communication.
Implementation Method 1
the elastic pad is located between the sealing member and the side wall portion
Data Source
AI summary
Disclosed is a control valve. The control valve comprises a sealing member, and the sealing member comprises an elastic pad and a sealing piece which have an integral structure. The control valve is provided with a rotation suppression portion, the rotation suppression portion is integrally formed with or fixedly connected to or in position-limiting connection with the inner surface of a valve body member, and the rotation suppression portion works in conjunction with the sealing member, so as to prevent the elastic pad from rotating with respect to a side wall portion and prevent movement of the sealing member with respect to the side wall portion.