Resilient Release Tool for Push-Fit Pipe Fittings
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Solution Overview
Problem
Existing release tools for push-fit pipe fittings require manual operation and guidance, making them cumbersome to use, especially in cramped spaces, and can lead to inconsistent force application, potentially damaging the fitting or causing scratches and leaks when reusing the pipe.
Innovation Solution
A release tool with engaging means that resiliently snap into a predetermined release position relative to the fitting, allowing for non-rotational axial displacement to disengage the gripping means, ensuring consistent force application and maintaining the release position without manual assistance, thus allowing both hands to be free.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a manual release tool is used to disengage the pipe from the fitting, then the pipe can be disconnected and the fitting can be reused, but the operator must use one hand to operate the release tool and another hand to withdraw the pipe, which is cumbersome especially in cramped spaces
Solution Approach 1:
The release tool is designed with resilient engaging means that automatically engage with the fitting body to maintain the release tool in the release position. Once the release tool is inserted and the gripping means are disengaged by pushing the release element, the engaging means self-maintain the position without requiring the operator to hold the tool, enabling hands-free operation and allowing the pipe to be withdrawn easily.
2Reliability
If a release tool is used to press the release element inward to disengage the gripping means, then the pipe can be released, but inconsistent force application may damage the fitting or cause scratches and leaks when reusing the pipe
Solution Approach 1:
The release tool incorporates resilient engaging means that automatically adjust to the fitting body's geometry to maintain a predetermined release position. This resilient engagement ensures that the release element is pressed inward with consistent and controlled force, preventing damage to the fitting or pipe while reliably disengaging the gripping means. The resilient nature of the engaging means provides force buffering and positioning accuracy.
3Device complexity
If a release tool without self-maintaining engagement is used, then the structure can be simpler, but the operator must continuously hold the release tool in position during operation
Solution Approach 1:
The release tool is equipped with engaging means that are pre-configured to automatically engage with corresponding features on the fitting body. When the release tool is inserted, the engaging means proactively snap into place to maintain the release position, eliminating the need for the operator to continuously hold the tool. This preliminary engagement action saves time and reduces operational effort.
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
Facilitates easy and safe disengagement of the pipe from the fitting by ensuring consistent and uniform pressure, preventing damage to the fitting and reducing the risk of leaks, while being compact and easy to manufacture, suitable for use in confined spaces.
Implementation Method 1
engaging means for maintaining the release tool in a predetermined release position with respect to the fitting, in which the engaging means are resiliently engaged with the fitting body
Data Source
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AI summary
A release tool (14) is provided for disengaging a pipe from a push-fit pipe fitting. The push-fit pipe fitting comprises a fitting body (1, 2) which defines a bore (3) for receiving a pipe, and gripping means (8, 9) for retaining the pipe within the Core (3). The release tool (14) comprises engaging means (20) for maintaining the release tool (14) in a predetermined release position with respect to the fitting, in which the engaging means (20) are resiliently engaged with the fitting body (1, 2), and an operating portion (18) for disengaging the gripping means (8, 9) from the pipe (5) when the release tool (14) is maintained in said release position.