Quick Coupler Dual-Seal Assembly for Leak-Free Connection
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Solution Overview
Problem
Existing quick coupler assemblies suffer from medium leakage when connected or disconnected, posing a risk of damage to electronic devices.
Innovation Solution
A dual-seal mechanism is implemented, comprising an outer side seal formed by the pipe sealing ring and sliding sleeve sealing ring, and an inner side seal by the front and rear sealing rings, ensuring complete sealing during connection and disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single seal mechanism is used in the quick coupler assembly, then the device complexity is reduced, but medium leakage occurs during connection and disconnection operations
Solution Approach 1:
The sealing mechanism is divided into two independent seal structures: an outer side seal (comprising outer sealing rings on the male and female couplers) and an inner side seal (comprising inner sealing rings on the male and female couplers). Each seal operates independently to address different leakage paths, with the outer seal handling external leakage and the inner seal handling internal leakage, thereby improving overall sealing reliability without excessive complexity
Solution Approach 2:
The inner seal mechanism is nested within the outer seal mechanism, creating a concentric sealing arrangement. The inner sealing rings are positioned inside the outer sealing rings, forming a nested configuration that maximizes sealing effectiveness while minimizing the overall space required for the sealing system
2Ease of operation
If the coupler components are designed for quick connection and disconnection, then the operation speed is improved, but sealing reliability deteriorates due to potential leakage during the connection process
Solution Approach 1:
The sealing surfaces and sealing rings are pre-positioned and pre-aligned in their respective coupler bodies before the connection operation begins. The outer and inner sealing rings are already in place on the male and female couplers, so that when connection occurs, sealing is established immediately without requiring additional sealing actions during the connection process
Solution Approach 2:
Different sealing mechanisms are applied to different locations: the outer side seal addresses leakage at the outer interface between male and female couplers, while the inner side seal addresses leakage at the inner interface. Each seal is optimized for its specific location and leakage path, ensuring comprehensive sealing coverage throughout the quick coupling operation
Data Source
AI summary
A quick coupler assembly includes a male and a female coupler connected end to end. The male coupler includes a seat having a core pipe; and a sliding sleeve and a sleeve sequentially fitted around the core pipe. The female coupler includes a pipe member externally provided with a pipe sealing ring and internally provided with a movable valve head. The pipe member pushes the sliding sleeve backward when being connected to the sleeve of the male coupler, so that the pipe sealing ring and a sealing ring on the sliding sleeve form an outer side first seal mechanism in the sleeve of the male coupler. Meanwhile, the backward moved sliding sleeve allows a front end of the core pipe to enter into the pipe member, such that a front and a rear sealing ring on the core pipe form an inner side second seal mechanism in the sliding sleeve.