Flat-Face Coupler with Frontal Annular Seal
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Solution Overview
Problem
Current fluid transmission quick coupling fittings require increasing effort to couple as residual pressure in the circuit increases, are mechanically cumbersome, and fail to prevent impurities from entering the female coupler when uncoupled or during coupling/uncoupling.
Innovation Solution
A fluid transmission flat-face coupler with a frontal annular seal and a pressure compensation system that relieves residual pressure independently of the coupling effort, featuring a cam mechanism and radial seal to maintain sealing and prevent impurities, ensuring easy coupling and user safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If conventional quick coupling fittings are used, then fluid transmission connection is achieved, but the coupling effort increases incrementally as residual pressure increases
Solution Approach 1:
The sealing function is segmented into two independent systems: a frontal annular seal for impurity prevention and a radial seal for pressure sealing. This segmentation allows the coupling mechanism to overcome residual pressure without requiring excessive force, as the frontal seal handles the impurity barrier while the radial seal manages pressure containment.
Solution Approach 2:
The frontal annular seal is pre-positioned to cover the wide frontal opening of the female coupler before coupling occurs. This preliminary sealing action prevents impurity entry during the coupling process and maintains sealing effectiveness independent of the force required to overcome residual pressure.
2Object-affected harmful factors
If conventional fittings without comprehensive sealing are used, then mechanical simplicity is maintained, but impurities can enter the female coupler when uncoupled or during coupling/uncoupling
Solution Approach 1:
The patent merges the frontal sealing function and radial sealing function into a unified coupler system. The frontal annular seal and radial seal work together to provide comprehensive impurity protection during all operational states (coupled, uncoupled, and transition phases) without requiring separate complex sealing systems.
Solution Approach 2:
The frontal annular seal serves multiple functions: it prevents impurity entry when the coupler is uncoupled, prevents impurity entry during coupling/uncoupling operations, and works in conjunction with the radial seal to maintain overall sealing effectiveness. This multi-functionality reduces the need for additional specialized sealing components.
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 solution allows for coupling with minimal effort regardless of residual pressure and effectively prevents impurities from entering the female coupler during all operational states, enhancing user safety and mechanical simplicity.
Implementation Method 1
a cam (7) adapted to relieve the pressure from a chamber (54) inside the female coupler (47)
Implementation Method 2
a radial seal (19) adapted to prevent the introduction of impurities into the female coupler (47)
Implementation Method 3
stressed by a spring (71)
Data Source
Figure 1
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AI summary
A fluid transmission fitting (100) is described comprising a flat-faced female coupler (47) with a frontal annular seal (400) to protect from the introduction of impurities, when uncoupled, during the step of coupling-uncoupling and when coupled to a flat-faced male coupler (48).