High-Pressure Air Pump Valve Connector With Pressure-Biased Sealing
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Solution Overview
Problem
Conventional valve connectors for high pressure air pumps suffer from leakage issues due to irregular deformation of valve plugs, especially under high pressures required for shock absorbers, which are more significant than tire pressures and can lead to substantial performance impacts.
Innovation Solution
A valve connector design featuring an outer sleeve, an abutting member, and an airtight member with a coupling hole and receiving space, where the airtight member is movable between positions to ensure airtight contact and is biased by air pressure, preventing excessive deformation and leakage during valve insertion and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If high inner pressure is used for operation of the shock absorber, then the performance is improved, but leakage becomes more significant and impacts performance
Solution Approach 1:
The patent optimizes the material parameters of the airtight member, specifically its resilience and hardness, to withstand high inner pressures while maintaining sealing effectiveness. The airtight member is designed with parameters that allow it to resist deformation under high pressure conditions, preventing leakage even when the shock absorber operates at required high pressure levels.
2Reliability
If the airtight member is made resilient to conform to valve surface, then airtight contact is improved, but the structure becomes more complex
Solution Approach 1:
The patent divides the connector into distinct functional segments: the outer sleeve, the abutting member, and the airtight member. This segmentation allows each component to be optimized independently for its specific function while maintaining overall structural simplicity. The airtight member is designed as a separate resilient element with a specific geometric shape, avoiding the need for complex integrated structures.
3Stability of the object's composition
If the abutting member prevents excessive deformation, then shape stability is improved, but the airtight contact pressure may be insufficient
Solution Approach 1:
The patent carefully balances the physical parameters of the airtight member, particularly its resilience and geometric dimensions. The airtight member is designed with optimal thickness and elasticity parameters that allow it to deform sufficiently under valve insertion to create airtight contact, while the abutting member provides just enough support to prevent excessive deformation. This parameter optimization ensures both adequate contact pressure and shape stability.
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 design achieves an excellent airtight effect by maintaining contact between the airtight member and the valve, preventing leakage during both insertion and removal, even under high pressures, thus enhancing the reliability of the shock absorber's operation.
Implementation Method 1
the airtight end face is configured to be biased toward the second position by air current entering from the inlet passageway
Data Source
AI summary
A valve connector for a high pressure air pump includes an outer sleeve having opposite first and second ends. The outer sleeve includes a coupling hole extending along a rotating axis and a receiving space intercommunicating with the coupling hole and located adjacent to the first end of the outer sleeve. An abutting member includes an abutting end received in the receiving space and a connecting end opposite to the abutting end. The abutting member includes an inlet passageway intercommunicating with the abutting end and the connecting end. An outer periphery of an airtight member about the rotating axis slidably abuts and is in airtight contact with an inner periphery of the receiving space. The airtight member is movable toward the first end or the second end. The airtight end face is configured to be biased toward the first end by air current entering from the inlet passageway.