Rotary Valve Sealing Assembly With Integrated Angle Limiter
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Solution Overview
Problem
The machining of a position-limiting part in the valve body of a valve device is difficult due to space constraints within the valve chamber.
Innovation Solution
The position-limiting part is arranged on a sealing assembly connected to the valve body in a fixed or position-limited manner, with the sealing assembly including first and second position-limiting parts and a matching part on the valve core to restrict rotation angles, reducing the complexity of machining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the position-limiting part is machined in the valve body, then the rotation angle of the valve core can be limited, but the machining difficulty increases due to space constraints in the valve chamber
Solution Approach 1:
The position-limiting function is segmented from the valve body and integrated into the sealing assembly instead. The sealing assembly becomes an independent component that carries the position-limiting parts, separating the machining operations and reducing the difficulty of machining the valve body while maintaining the rotation angle limitation function.
Solution Approach 2:
The sealing assembly acts as an intermediary component between the valve core and the valve body. It provides the position-limiting function through its position-limiting parts that interact with matching parts on the valve core, while being connected to the valve body in a fixed or position-limited manner, thus solving the machining difficulty without compromising the rotation control function.
2Ease of manufacture
If the position-limiting part is arranged on the sealing assembly, then the machining process is simplified, but the sealing performance must be maintained
Solution Approach 1:
The position-limiting function is merged with the sealing assembly, combining two functions (sealing and position limitation) into a single component. The sealing assembly includes both sealing elements and position-limiting parts, allowing it to perform dual functions while being machined as a unified structure, thus simplifying the overall manufacturing process while maintaining sealing reliability.
Solution Approach 2:
The sealing assembly is designed with multi-functionality, serving both as a sealing component and as a position-limiting component. By integrating the position-limiting parts into the sealing assembly, the component becomes universal, performing multiple functions simultaneously without requiring separate dedicated parts, thereby simplifying manufacturing while ensuring sealing performance.
Data Source
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AI summary
A valve device, comprising a sealing assembly (6), a valve core (4), and a valve body (5). The valve body (5) is provided with a valve cavity (51), a first communication port (52), and a second communication port (53); the valve core (4) is provided with a channel (42); at least part of the valve core (4) is located in the valve cavity (51); the valve core (4) can rotate relative to the valve body (5), such that the channel (42) can be communicated with the first communication port (52) and the second communication port (53); the sealing assembly (6) and the valve body (5) are connected fixedly or in a limited manner; the bottom wall of the valve core (4) abuts against the sealing assembly (6); a limiting portion for limiting a rotating angle of the valve core (4) is provided on the sealing assembly (6); and the sealing assembly (6) and the valve body (5) are connected fixedly or in a limited manner. Compared with machining the limiting portion in a valve body, the machining difficulty of the valve device is lowered.