Spring-Supported High-Pressure Fluid Fitting for Airtight Detachment
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Solution Overview
Problem
Conventional one-touch high-pressure fluid fittings face challenges in maintaining airtightness and smooth detachment of the insertion tube, often resulting in the fitting cap getting caught or the tube being difficult to remove due to uneven force application.
Innovation Solution
A one-touch high-pressure fluid fitting design utilizing a spring to press a sealing ring and elastically support an inward inclined surface of the fitting cap, allowing the cap to expand upon unfastening, ensuring internal airtightness and smooth detachability between the fitting body and cap.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional one-touch fitting uses cut pieces with elastic restoring force to enable quick connection, then the ease of operation is improved, but the reliability of maintaining airtightness deteriorates
Solution Approach 1:
A sealing ring is introduced as an intermediary element between the insertion tube and the fitting body to ensure reliable sealing. The sealing ring deforms under compression to fill gaps and maintain airtightness, while the cut pieces provide the mechanical locking action for quick connection. This separates the sealing function from the locking function, allowing each to be optimized independently.
Solution Approach 2:
The fitting cap is divided into multiple cut pieces that can independently deform and expand. This segmentation allows the cap to uniformly distribute the user's applied force across multiple contact points, preventing localized stress concentration and ensuring smooth, controlled expansion for reliable detachment while maintaining structural integrity for secure locking.
2Ease of operation
If external force is applied to the fitting cap to remove the insertion tube, then the detachable structure is enabled, but the fitting cap may get caught in the fitting body or the insertion tube may fail to be smoothly removed
Solution Approach 1:
The fitting cap is designed with dynamic characteristics through the spring mechanism that allows it to expand and contract smoothly. When force is applied, the cap gradually expands by deforming the cut pieces in a controlled manner, maintaining continuous contact with the sealing ring and insertion tube throughout the detachment process. This dynamic design prevents sudden jumps or getting caught, ensuring smooth removal.
Solution Approach 2:
The spring element is pre-loaded to provide a cushioning effect during the detachment process. As the user applies force to expand the cap, the spring gradually releases its stored energy, cushioning the expansion motion and preventing abrupt movements that could cause the cap to get caught or the tube to be damaged. This prior cushioning ensures controlled, smooth detachment.
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 spring-supported design maintains airtightness and facilitates easy detachment of the insertion tube by uniformly transferring the user's force to the fitting cap, preventing malfunctions like cap entrapment and improving user experience.
Implementation Method 1
a spring (330) coming into contact with the sealing ring (310) to elastically support the inward inclined surface (212)
Implementation Method 2
the spring is used to press a sealing ring and simultaneously elastically support an inward inclined surface of a fitting cap, and the fitting cap is expanded upon unfastening
Implementation Method 3
the spring is used to press a sealing ring (310)
Data Source
AI summary
A one-touch high-pressure fluid fitting using a spring, in which the spring is used to press a sealing ring and simultaneously elastically support an inward inclined surface of a fitting cap, and the fitting cap is expanded upon unfastening so as to maintain an internal airtightness of a fitting body and allow a detachable structure between the fitting body and the fitting cap to be smoothly implemented.