Pipe Extractor Mechanism for Targeted Broken PVC Removal
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Solution Overview
Problem
Current methods for replacing broken sections of PVC pipes require cutting and replacing entire couplings, which is inefficient and wasteful, as they do not allow for targeted removal of damaged sections near couplings.
Innovation Solution
A pipe extractor mechanism comprising an upper and lower shaft mechanically coupled with a cutting insert, featuring a stop, shaving edge, and cutting edge, which is affixed to a drill and guide to precisely remove broken pipe sections from connectors or fittings without replacing the entire coupling area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the entire coupling is removed to replace broken pipe sections near couplings, then the broken pipe can be replaced, but excessive material is wasted and the repair process becomes unnecessarily complex
Solution Approach 1:
The invention divides the coupling into two separate parts: an outer coupling body that remains in place and an inner pipe section that can be independently removed and replaced. This segmentation allows the damaged pipe section to be replaced without removing the intact coupling body, thereby reducing material waste while maintaining ease of repair.
Solution Approach 2:
The invention extracts the inner pipe section from the coupling assembly, allowing it to be removed independently through the coupling body. This extraction principle enables replacement of only the damaged pipe portion rather than the entire coupling assembly, directly addressing both ease of repair and reduction of material waste.
2Reliability
If the entire coupling is removed to replace broken pipe sections, then complete replacement is ensured, but the repair process becomes more time-consuming and less efficient
Solution Approach 1:
By segmenting the coupling into a stationary outer body and a removable inner pipe section, the invention enables targeted replacement of only the damaged portion. This maintains repair completeness by ensuring proper coupling functionality is preserved while significantly improving repair efficiency by eliminating unnecessary removal and installation of intact components.
Solution Approach 2:
The coupling body is pre-designed with features that allow the inner pipe section to be easily extracted and replaced. The preliminary design of the coupling structure includes mechanisms such as snap-fit connections or tool-accessible features that enable quick removal of the inner section without compromising the integrity or reliability of the overall coupling assembly.
3Ease of operation
If traditional cutting methods are used to remove broken pipe sections, then pipe replacement is possible, but the process requires substantial reshaping and removal of surrounding material
Solution Approach 1:
The invention extracts the inner pipe section as a complete, intact component from the coupling body, eliminating the need for cutting, reshaping, or removal of surrounding material. This extraction approach maintains ease of operation by allowing simple removal and replacement of the inner section while minimizing material loss compared to traditional cutting methods.
Data Source
AI summary
A pipe extractor removes a broken pipe from a connector or a fitting. The pipe extractor comprises an upper shaft mechanically coupled to a lower shaft where the lower shaft is further mechanically coupled to cutting insert, the cutting insert comprises a stop, a shaving edge and a cutting edge. A user can affix the upper shaft to a drill and engage the drill to turn the cutting insert causing the cutting edge to remove the broken pipe from the connector or the fitting. The cutting insert is further affixed to a guide such that the guide can ensure that the cutting edge is properly aligned with the broken pipe.