Quick Connector Coupling With Compact Seal and Clip Layout
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing quick connector couplings require a substantial axial build height due to the offset between the sealing ring and the locking mechanism, limiting their compactness and efficiency in fluid line applications.
Innovation Solution
The design features a flange with circumferential extensions carrying a terminal ring, allowing the locking clip to engage between the terminal ring and the collar, while the sealing ring groove is positioned closer to the flange, enabling the O-ring to be at the same axial level as the locking clip, thus reducing the axial build height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sealing ring is positioned deep inside the inner passage to provide reliable sealing, then sealing performance is improved, but axial build height increases
Solution Approach 1:
The patent merges the sealing function and locking function into the same axial region by positioning the sealing ring at the same axial level as the locking clip. The flange structure integrates both the abutment surface for locking and the support for the sealing ring, allowing both functions to coexist without requiring additional axial space.
2Reliability
If additional axial length is provided for connecting the collar and flange with the locking clip, then locking reliability is improved, but axial build height increases
Solution Approach 1:
The patent utilizes the radial dimension by extending the flange radially outward to provide both the abutment surface and the mounting location for the sealing ring. This radial extension allows the locking and sealing functions to be achieved without increasing axial build height, as the structural support is provided in the radial direction rather than the axial direction.
Data Source
AI summary
A quick connector coupling comprises a collar port having a passage and a collar, a connector to be coupled to the collar port and comprising a tube portion to be received in the passage, a flange on the tube portion, a sealing ring received in a groove on the tube portion, and a locking clip for engaging the collar and an engagement surface of the connector to lock the connector against axial movement. With the connector in a mounted state, the flange has extensions extending along the tube portion beyond the collar, the extensions carry a terminal ring with a surface facing the flange forming the engagement surface spaced from the collar, the clip arranged to lock the connector on the collar port against axial movement, and the groove is axially formed on the tube portion such that the groove is closer to the flange than the engagement surface.