Quick-Release Thread Protector With Collet Locking for Pipe Threads
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Solution Overview
Problem
Conventional thread protectors for pipes are time-consuming to install and remove, lack visual confirmation of proper installation, and may be accidentally dislodged or damaged, especially when used on pipes with varying diameters and thread forms.
Innovation Solution
A quick release thread protector with a collet and sleeve design, featuring a pivotally mounted arm that compresses to engage and disengage with pipe threads, providing visual confirmation of proper installation and preventing accidental dislodging, and is designed for easy installation and removal without protruding structures that can be damaged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional thread protectors are used, then the pipe threads are protected from damage, but the installation and removal process is time-consuming
Solution Approach 1:
The thread protector incorporates a dynamic quick-release mechanism with movable lugs that can be shifted between engaged and disengaged positions. The lugs are biased by springs and can be quickly moved to release the protector from the pipe, enabling rapid installation and removal while maintaining secure protection during use
Solution Approach 2:
The thread protector is divided into separate functional components including the main body, multiple independent lugs for engagement, and a quick-release mechanism. This segmentation allows the lugs to be independently actuated for rapid release while the main body remains protected, resolving the contradiction between secure attachment and quick removal
2Reliability
If conventional thread protectors are used, then the pipe ends are protected, but there is no visual confirmation of proper installation
Solution Approach 1:
The thread protector incorporates visual indicators such as colored bands or color-coded components that change or become visible when the protector is properly installed. This provides immediate visual confirmation of correct installation status without requiring additional inspection tools or procedures
3Reliability
If conventional thread protectors are used, then the threads are protected, but the protectors may be accidentally dislodged or damaged
Solution Approach 1:
The locking function is extracted from the main protector body and implemented through separate, removable lugs that engage with corresponding features on the pipe. This allows the protector to be securely locked in position through the engagement of these extracted locking elements while maintaining the ability to quickly release them when needed, preventing accidental dislodging
4Reliability
If conventional thread protectors are used, then protection is provided, but protruding structures may be damaged during handling
Solution Approach 1:
The thread protector design minimizes fixed protruding structures by using a streamlined body with integrated, retractable, or flush-mounted engagement features. The quick-release mechanism allows protruding lugs to be retracted or positioned flush with the protector body during handling, eliminating vulnerable protrusions that could be damaged during transport and storage
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
Enables rapid and secure installation and removal of the thread protector, provides improved sealing, and is easy to use and manufacture, with reduced risk of damage or accidental dislodging, suitable for various pipe diameters and thread forms.
Implementation Method 1
The collet is movable along the tapered surface of the sleeve such that the collet engages the threads of the pipe
Implementation Method 2
an arm pivotally mounted to the sleeve and having a surface bearing against the end surface of the collet. The arm is movable between a first position in which the collet is free of the threads of the pipe and a second position wherein the collet moves along the tapered surface of the sleeve
Data Source
AI summary
A thread protector for threads of the pipe has a collet having an inner surface, and outer surface and an end surface, a sleeve cooperative with the collet, and an arm pivotally mounted to the sleeve and having a surface bearing against the and surface of the collet. The collet is adapted to engage the threads of the pipe. The sleeve has a plurality of tapered surfaces thereon. The arm is movable between a first position in which the collet is free of the threads of the pipe and a second position in which the collet moves along the tapered surfaces of the sleeve such that the collet engages the threads of the pipe.