Pipe Fitting Friction Retention Mechanism
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Solution Overview
Problem
Existing pipe fittings require cumbersome tool-based assembly or time-consuming adhesive application for secure connections, which can be inefficient and labor-intensive.
Innovation Solution
The development of fittings with insert members and retention members that frictionally secure within the pipe, utilizing a combination of sleeves and collars to create a secure connection without the need for tools or adhesives, allowing for easy installation and retention through pressure engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a clamp is fastened over the pipe to compress the pipe against the barb, then a sealed connection is formed, but the assembly process becomes burdensome and time-consuming requiring tools
Solution Approach 1:
The patent replaces the traditional clamp-based mechanical fastening system with a friction-based retention system. The retention member uses friction between its inner surface and the pipe outer surface to secure the fitting, eliminating the need for clamps, barbs, and compression tools while maintaining connection reliability
Solution Approach 2:
The fitting design allows the pipe itself to serve as the retention mechanism through friction engagement. The retention member's inner surface frictionally engages with the pipe's outer surface, creating a self-retaining connection that requires no additional fastening components or tools
2Reliability
If sealant or adhesive compound is used to bond the barb within the pipe, then the connection is secured, but time is required for the compound to set before further work can be performed
Solution Approach 1:
The patent eliminates chemical bonding agents (sealants and adhesives) by replacing them with a mechanical friction-based retention system. The retention member secures the fitting through friction engagement with the pipe, providing immediate connection security without requiring chemical setting time
Solution Approach 2:
The friction-based retention system uses the inherent properties of the pipe and retention member surfaces to create an immediate secure connection. The friction engagement occurs instantly upon assembly, eliminating the waiting period required for adhesive or sealant curing
3Reliability
If traditional clamp or adhesive methods are used, then secure connections are achieved, but labor intensity and assembly time increase
Solution Approach 1:
The patent replaces tool-based mechanical fastening systems (clamps requiring compression tools) with a friction-based system that achieves secure connections through simple insertion and friction engagement, dramatically improving assembly efficiency while maintaining connection reliability
Solution Approach 2:
The friction retention system allows the fitting to self-secure through friction engagement between the retention member and pipe. This eliminates the need for operators to use tools or apply adhesives, reducing labor intensity and increasing productivity while ensuring reliable connections
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
This solution enables rapid and secure connections between pipes, reducing assembly time and labor while ensuring a reliable seal, thus improving efficiency and ease of use.
Implementation Method 1
The retention member engages an inner surface of the end portion of the pipe to help frictionally secure the end portion of the pipe on the insert member
Data Source
AI summary
A fitting connectable to an end portion of a pipe generally includes an insert member configured to be received at least partly within the end portion of the pipe, a retention member coupled to the insert member and configured to be received at least partly within the end portion of the pipe, and a sealing member carried by the insert member adjacent the retention member. The retention member and seal engage the end portion of the pipe to help frictionally secure and seal the end portion of the pipe on the insert member when the insert member is received at least partly within the end portion of the pipe.