Cross Platform Grip Ring Release Tool for Piping
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Solution Overview
Problem
Existing piping connection methods, such as soldering and push-fit technology, are labor-intensive, costly, and do not allow for easy repair or re-use of fittings due to permanently affixed fastening rings, which can lead to increased manufacturing costs and reduced production capability.
Innovation Solution
A two-piece release tool with mating threads that applies axial pressure to flex the fastening ring teeth, allowing for smooth insertion and removal of piping elements, and then relaxes the pressure to restore the teeth's original position, enabling easy assembly and disassembly of piping connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If push-fit technology with permanently affixed fastening rings is used, then connection security is improved, but ease of repair and re-use deteriorates
Solution Approach 1:
The fastening ring is designed to transition between a locked state (teeth engaged with pipe) and an unlocked state (teeth retracted). The release tool applies axial force to the pipe insertion component, which transfers force to the fastening ring teeth, causing them to flex inward and release the pipe. This dynamic state change enables both secure connection and easy release.
Solution Approach 2:
A release tool serving as an intermediary device is introduced to facilitate the release process. The tool includes a pipe insertion component that applies axial force to the fastening ring, enabling controlled release without damaging the fitting or pipe. This intermediary mechanism solves the contradiction by providing a dedicated release pathway.
2Strength
If traditional soldering methods are used, then connection strength is improved, but labor intensity and manufacturing cost increase
Solution Approach 1:
The patent replaces the thermal soldering process with a mechanical push-fit connection system. Instead of using heat, flux, and solder to create joints, the system uses a fastening ring with teeth that mechanically grip the pipe. This substitution eliminates the need for torches, solder materials, and extensive preparation steps, significantly reducing labor intensity and manufacturing costs while maintaining connection strength.
Solution Approach 2:
The connection mechanism transitions from thermal bonding (soldering) to mechanical bonding (push-fit with fastening ring). The fastening ring teeth are designed with specific geometric parameters (pitch, depth, angle) that optimize the mechanical interlocking between the ring and pipe, providing sufficient connection strength without requiring thermal processes.
3Reliability
If fastening ring teeth are made to grip tightly for secure connection, then connection security is improved, but ease of insertion and removal deteriorates
Solution Approach 1:
The fastening ring teeth are designed to be flexible and capable of dynamic movement. During insertion, the teeth flex outward to accommodate the pipe. During release, axial force applied through the pipe insertion component causes the teeth to flex inward, releasing the pipe. This dynamic flexibility resolves the contradiction between tight gripping and easy removal.
Solution Approach 2:
The geometric parameters of the fastening ring teeth (flexibility, pitch, depth) are optimized to provide sufficient gripping force for secure connection while maintaining enough flexibility to allow easy insertion and controlled release when axial force is applied.
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 reduces labor and manufacturing costs by simplifying the assembly process, allowing for easier repair and re-use of fittings, and improving the overall efficiency of piping system connections while maintaining a secure seal.
Implementation Method 1
applying an axial force to a pipe insertion component so as to flex the teeth of a fastening ring inwardly
Data Source
AI summary
The present invention provides, in part, a device that can fit around a fitting retention compartment of a pipe fitting, apply axial pressure to a pipe insertion component so as to flex the teeth of a fastening ring inwardly, which permits smooth insertion and removal of piping elements. In embodiments, the device comprises a two-piece device with mating threads that permit the pieces to move toward and away from one another with minute adjustments.