Quick Connector Assembly Tool-Free Locking Mechanism
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Solution Overview
Problem
Current quick connector assemblies for fluid conduits often require tools for tightening and can falsely indicate a secure connection, leading to potential separation during fluid transfer.
Innovation Solution
A quick connector assembly featuring a housing with a retainer or wire spring mechanism that uses a flange to displace and spring inwardly, ensuring secure abutment between the housing and conduit, preventing separation and providing visual verification of a locked connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional connection joints use screws and tools for tightening, then the connection can be securely fastened, but the operation becomes complex and requires additional tools
Solution Approach 1:
The patent extracts the tightening function from traditional screw-based connections and replaces it with a spring-loaded retainer mechanism that automatically secures the conduit when inserted into the housing, eliminating the need for external tools
Solution Approach 2:
The spring retainer mechanism is self-actuating - as the conduit is inserted, the flange engages the retainer which automatically compresses the spring to lock the connection, requiring no external intervention or tools for tightening
2Reliability
If traditional connection joints provide a false sense of security, then users may believe connections are secure, but they can actually separate during fluid transfer
Solution Approach 1:
The patent incorporates a visual feedback mechanism where the spring retainer's position provides observable confirmation of the locked state - when compressed against the flange, the retainer's position visibly indicates that the conduit is properly secured, giving accurate real-time status information
Solution Approach 2:
The retainer mechanism provides visual verification through positional changes that can be observed during connection, allowing users to confirm the secure locked state before beginning fluid transfer operations
3Ease of operation
If a quick connector assembly uses a spring mechanism for secure connection, then tool-free operation is achieved, but the device complexity increases
Solution Approach 1:
The patent merges the spring retainer mechanism directly into the housing structure, integrating the locking function into the existing connector assembly rather than adding separate components, thereby minimizing overall device complexity
Solution Approach 2:
The spring retainer serves multiple functions simultaneously: it provides the locking mechanism, visual feedback, and connection verification, eliminating the need for separate components for each function and reducing overall device complexity
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 enables tool-free, leak-proof connections between conduits with enhanced security and visual confirmation of the locking mechanism, preventing separation during fluid transfer.
Implementation Method 1
The wire spring has a portion that is extended through the opening and that is located within the fluid passage of the housing. When the housing receives the conduit, the flange of the conduit makes contact with the portion of the wire spring, and the contact of the flange displaces the portion outwardly with respect to the fluid passage of the housing and also displaces the portion forwardly with respect to the direction of reception of the conduit. During further reception, the flange passes the portion of the wire spring so that the portion springs inwardly and rearwardly against the conduit.
Implementation Method 2
The retainer has a portion that is located in the fluid passage of the housing. When connecting the housing and the first conduit, the flange of the first conduit makes contact with the portion of the retainer and displaces the portion outwardly with respect to the fluid passage of the housing. During further connection, the flange passes the portion of the retainer so that the portion springs inwardly against the first conduit.
Data Source
AI summary
A quick connector assembly that provides fluid communication between a first conduit and a second conduit. The quick connector assembly includes a housing and a retainer. The housing has a first end that connects with the first conduit, has a second end that connects with the second conduit, and has a fluid passage that extends between the first and second ends. The retainer is carried by the housing and has a portion located in the fluid passage of the housing.