Spiral-Rib Valve Core Structure for Anti-Twist Flow Control
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Solution Overview
Problem
Existing control valves face challenges in maintaining structural strength and stability of the valve core, leading to potential deformation and fluid leakage during operation.
Innovation Solution
The control valve design incorporates a valve core with outer communication chambers and a first chamber, featuring a first reinforcing rib in a spiral structure around the first valve-core shaft. This configuration enhances the anti-twist strength and reduces twist deformation of the valve core during rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the valve core is driven to rotate to control fluid in multiple flow paths, then the control function is improved, but the structural strength of the valve core deteriorates due to twist deformation during rotation
Solution Approach 1:
The reinforcing rib is designed with a spiral curvature that wraps around the valve core shaft. This curved structure effectively resists the twisting forces generated during rotation, preventing deformation while allowing the valve core to rotate for fluid control. The spiral shape transforms the rotational stress into compressive forces along the rib, maintaining structural integrity.
2Ease of manufacture
If the valve core structure is simplified for ease of manufacture, then the manufacturing process is improved, but the anti-twist capability deteriorates
Solution Approach 1:
The valve core is segmented into functional regions: the valve core shaft for rotation, the reinforcing rib for structural support, and the communication chambers for fluid control. The reinforcing rib is further segmented into a spiral structure that can be integrated into the molding process. This segmentation allows each part to perform its specific function while maintaining manufacturability through standard injection molding techniques.
3Quantity of substance
If the wall thickness of the valve core is reduced to minimize material usage, then the material consumption is reduced, but the structural strength deteriorates due to uneven wall thickness causing deformation
Solution Approach 1:
The reinforcing rib is strategically positioned in the first communication chamber where it is most needed to prevent twist deformation during rotation. This local reinforcement allows other areas of the valve core to maintain thinner walls, optimizing material distribution. The spiral rib provides targeted structural support without requiring uniform thickening of the entire valve core structure.
Data Source
AI summary
A control valve is provided, which comprises a valve body and a valve element. The valve element can be driven to rotate, the valve element is provided with an external communicating cavity and a first cavity, and the valve element comprises a first partition plate, a first valve element shaft and a first reinforcing rib; the first reinforcing rib comprises a first end portion, a second end portion and a first main body portion in a height direction of the valve element and the first main body portion is connected between the first end portion and the second end portion, and there is a height difference between the first end portion and the second end portion.