Quick Connection Coupling with Cam-Actuated Latch
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Solution Overview
Problem
Existing coupling designs for connecting conduits, particularly in plumbing, require tools and are difficult to install in tight spaces, often leading to leakage due to inadequate locking mechanisms that lack user feedback.
Innovation Solution
A coupling design featuring a female section with a retainer and a male section having large diameter sections forming a channel, along with a sliding locking piece that provides tactile and audible feedback upon locking, allowing for tool-free installation and easy removal in confined areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a cam-actuated latch is used with spring pressure, then easy installation is achieved, but the latch may not engage positively without user feedback
Solution Approach 1:
The patent incorporates a positive latch mechanism where the latch engages with a cam surface to provide audible and tactile feedback to the user, confirming that the coupling is properly locked. This feedback mechanism eliminates the uncertainty present in spring-actuated latches and ensures reliable connection
Solution Approach 2:
The spring is pre-loaded to maintain constant pressure on the cam surface, ensuring that the latch is always in a ready-to-engage position. This preliminary action of pre-compressing the spring ensures that when the cam is actuated, the latch immediately engages positively without requiring additional force from the user
2Reliability
If traditional threaded couplings are used, then secure connection is achieved, but installation requires tools and takes substantial time
Solution Approach 1:
The patent replaces the threaded mechanical system with a cam-actuated latch system. Instead of requiring threads and wrenches, the coupling uses a cam surface that converts linear motion into rotational locking action, providing secure connection without traditional threading mechanisms and eliminating the need for installation tools
Solution Approach 2:
The patent uses a dynamic cam mechanism where the cam surface is designed to rotate and lock the latch in place during insertion. This dynamic action provides progressive engagement and secure locking without requiring multiple steps or tools, significantly reducing installation time while maintaining connection security
Data Source
AI summary
A coupling, conduit assembly, method for coupling conduits and faucet assembly are described herein, wherein the coupling includes a female section with a conduit connecting end and a retainer with at least one projection; a male section with a conduit connecting end and a male projecting portion with a two large diameter sections, each having an inwardly facing surface wherein the surfaces define a channel that is configured so a mating surface on the projection or projections contacts the surface of the first large diameter section when the coupling is locked; and a locking piece on the female section capable of sliding along that section to engage the projection or projections when situated in the channel so the mating surface on the projection or projections contacts the surface of the first large diameter section and the locking piece retains the projection or projections in position and locks the coupling.