Anti-siphon One-way Valve Y-shaped Ring Sealing
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Solution Overview
Problem
Conventional anti-siphon one-way valves face issues with poor sealing due to high precision requirements for the O-shaped seal ring and valve components, leading to increased production costs and complexity.
Innovation Solution
The design incorporates a Y-shaped ring with an installation base, side wings, and an elastic wing, which reduces precision requirements and installation complexity, utilizing a return spring to ensure effective sealing by adjusting the angle and diameter of the valve cavity for improved liquid flow and backflow prevention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an O-shaped seal ring is used for sealing, then the sealing function is provided, but the sealing effect is poor due to eccentricity and high precision requirements
Solution Approach 1:
The patent replaces the O-shaped seal ring with a Y-shaped sealing ring that has a specific geometric structure designed to be more tolerant of installation variations. The Y-shaped structure provides inherent alignment features that eliminate the need for high-precision installation, making the sealing solution more robust and less sensitive to manufacturing and installation tolerances.
Solution Approach 2:
The Y-shaped sealing ring introduces asymmetric geometry to the sealing mechanism. The specific angle and shape of the Y-structure create a self-aligning feature that compensates for eccentricity and installation errors, thereby improving the sealing effect without requiring high precision installation.
2Reliability
If high precision is required for valve core, valve rod, and block seat coaxiality, then the sealing function is maintained, but the device complexity and installation difficulty increase
Solution Approach 1:
The Y-shaped sealing ring's asymmetric geometry provides built-in alignment features that guide proper installation and maintain sealing effectiveness without requiring strict coaxiality between the valve core, valve rod, and block seat. This reduces the overall device complexity and installation requirements.
Solution Approach 2:
The Y-shaped sealing ring is pre-configured with specific geometric features during manufacturing that ensure proper alignment and sealing function. This preliminary configuration eliminates the need for high-precision field installation and reduces the complexity of assembling the valve components.
3Reliability
If strict size precision is required for the valve body with O-shaped ring, then the sealing is maintained, but the production cost increases
Solution Approach 1:
The Y-shaped sealing ring is designed to be more tolerant of manufacturing tolerances, allowing the valve body to be produced with lower precision requirements. This reduces manufacturing costs while maintaining adequate sealing quality through the geometric design of the Y-shaped structure.
Solution Approach 2:
The patent changes the sealing geometry from a circular O-shaped ring to a Y-shaped structure with specific angles and dimensions. This parameter change in the sealing ring design makes the system less sensitive to valve body size variations, allowing for cost-effective manufacturing with relaxed tolerance specifications.
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 Y-shaped ring design enhances the anti-siphon effect while lowering production costs and simplifying installation, resulting in a more reliable and cost-effective anti-siphon one-way valve with improved sealing performance.
Implementation Method 1
The return spring (40) is fitted on the valve core (30)
Implementation Method 2
When a liquid enters the accommodation cavity 101 through the inlet, under action of liquid pressure, the valve body 302 is pressed to compress the return spring 40
Data Source
AI summary
An anti-siphon one-way valve includes a valve seat, a valve core, a return spring, and a Y-shaped ring. The valve seat has an inlet and an outlet. The valve seat has a valve cavity therein. The valve cavity communicates with the inlet and the outlet respectively. The valve core is slidably mounted in the valve cavity. The Y-shaped ring is installed on the valve core and leans against the side wall of the valve cavity. The Y-shaped ring has a Y-shaped cross-section. The return spring is fitted on the valve core. The present invention provides a better anti-siphon effect, and the requirements for precision in size and installation are lower, and the production cost is reduced.