Snap-Fit Pipe Coupling Assembly for Leak-Tight Drain Connections
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Solution Overview
Problem
Leakage issues between coupled pipes in plumbing systems are common and often difficult to resolve, especially in under-sink drain systems, where leaks can account for up to 80% of the problems, and DIY repairs often lead to recurring issues.
Innovation Solution
A pipe coupling assembly featuring a coupler cup and coupler cap with angled surfaces and flex tabs that snap together, providing a secure seal without the need for special tools or adhesives, and including a release ring for easy disassembly, ensuring a reliable and user-friendly connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional pipe coupling methods are used, then pipes can be connected, but leakage occurs at coupling points
Solution Approach 1:
The coupling device is divided into two separate components: a coupler cup that fits over the first pipe and a coupler cap that connects to the second pipe. These segments snap together to form a complete coupling, allowing each component to be optimized for its specific function while maintaining overall reliability and simplicity
Solution Approach 2:
A seal member is introduced as an intermediary element between the coupler cup and coupler cap. This seal member creates a liquid-tight barrier at the engagement interface, preventing leakage without requiring complex threading or welding mechanisms
2Ease of operation
If DIY repair methods are used, then consumers can attempt leak repairs, but leaks recur frequently
Solution Approach 1:
The coupler cup and coupler cap are pre-configured with complementary engagement surfaces and sealing elements. The snap-fit mechanism is designed to automatically position the seal member correctly when the components are assembled, ensuring proper sealing without requiring user expertise or adjustment
Solution Approach 2:
The coupling device includes integrated sealing and locking features that self-adjust during assembly. The snap-fit connection automatically compresses the seal member against the pipe surfaces, creating a reliable seal without requiring additional tools, adhesives, or professional intervention
3Reliability
If professional plumber intervention is required, then leak repairs can be addressed, but time and cost increase
Solution Approach 1:
The separable coupler design allows for quick installation by simply snapping the cap onto the cup, eliminating the time-consuming processes of traditional pipe joining methods while maintaining professional-grade sealing reliability
Solution Approach 2:
Traditional mechanical joining methods such as threading, soldering, or gluing are replaced with a snap-fit elastic engagement system. This mechanical substitution reduces installation time and complexity while maintaining connection reliability
4Strength
If coupling assemblies require special tools or adhesives, then secure connections can be achieved, but ease of use decreases
Solution Approach 1:
The engagement surfaces between the coupler cap and cup feature angled and curved geometries that guide the components into proper alignment during assembly. The elastomeric material of the coupler cap allows it to flex and conform to the coupler cup, creating a secure connection through elastic engagement rather than rigid mechanical fastening
Solution Approach 2:
The coupler cap is made from an elastomeric material that changes its physical parameters during assembly. The material flexes outwardly during engagement and then returns to its original shape, creating a strong mechanical bond without requiring external tools or chemical adhesives
5Ease of operation
If traditional coupling methods are used, then pipes can be connected, but disassembly is difficult
Solution Approach 1:
The coupling device incorporates a dynamic release mechanism where the coupler cap can be rotated to disengage from the coupler cup. This rotational movement allows the elastomeric cap to flex and release from the engagement surfaces, enabling easy disassembly without damaging the components or requiring excessive force
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 reduces the risk of leaks, saves time and costs, and simplifies the installation process by providing a quick and secure snap-fit connection with multiple sealing surfaces, ensuring a reliable liquid-tight seal and easy removal without losing the removal tool.
Implementation Method 1
The flex tabs flex outwardly as the angled surface of the coupler cap slides along the angled surface of the coupler cup
Implementation Method 2
A seal is disposed between the coupler cap and the coupler cup to provide a sealed pipe system
Data Source
AI summary
A pipe system for transporting liquid. The pipe system connects adjacent pipes and includes a pipe having a coupler cup formed in an end thereof. The coupler cup is configured for receiving and end of a second pipe therein. The pipe system includes a coupler cap adapted to snap onto the coupler cup. The coupler cap also has an opening for receiving the second pipe therethrough to couple the first pipe and the second pipe. A seal is disposed between the coupler cap and the coupler cup to provide a sealed pipe system.