Braided Corrugated Pipe Joint Structure to Prevent Heat and Compression Damage
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Solution Overview
Problem
Conventional methods for fixing a braided net to a corrugated pipe for high pressure result in damage from welding heat and compression force, and are complicated and costly due to the need for multiple components and skilled labor.
Innovation Solution
A corrugated pipe with a metal braided net featuring a joining portion twice as thick as the pipe, a connector with a groove portion, and a coupling ring compressed onto the connector rather than the pipe, thereby distributing compression force away from the fragile pipe material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a braided net is fixed to a corrugated pipe using conventional methods (coupling rings compressed on the pipe), then the braided net can be secured, but the thin-walled corrugated pipe (0.3-0.4 mm thickness) is damaged by compression force and welding heat
Solution Approach 1:
A connector with a groove portion is introduced as an intermediary component between the coupling ring and the corrugated pipe. The coupling ring compresses the braided net onto the groove portion of the connector rather than directly onto the pipe, distributing the compression force away from the fragile pipe material and preventing damage while maintaining reliable fixation.
Solution Approach 2:
The fixing system is segmented into distinct functional components: the connector with groove portion for force distribution, the coupling ring for compression, and the braided net for reinforcement. This segmentation allows each component to perform its specific function optimally without the pipe bearing the full mechanical load.
2Reliability
If multiple components (straight pipe part, inner coupling ring, outer coupling ring, welding ring) are used to fix the braided net, then the fixing can be achieved, but the manufacturing process becomes complicated and costs increase
Solution Approach 1:
The connector integrates multiple functions that were previously performed by separate components: it provides the groove portion for force distribution, the welding surface for attachment, and the structural support for the coupling ring. This merging reduces the total number of components and simplifies the manufacturing process while maintaining reliable fixation.
Solution Approach 2:
The connector serves multiple purposes: it acts as a structural support element, a force distribution mechanism through its groove portion, a welding substrate, and a mounting surface for the coupling ring. This multi-functionality eliminates the need for separate specialized components for each function.
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
The solution effectively doubles the thickness of the welded portion and redirects compression force away from the corrugated pipe, preventing damage from welding heat and compression, while simplifying the manufacturing process and reducing costs.
Implementation Method 1
a welded portion where an outer circumferential portion of the joining portion is welded round in a state in which the joining portion and the welded surface touches each other
Data Source
AI summary
A corrugated pipe for high pressure having a metal braided net, which includes a joining portion formed to be twice as thick as a corrugated pipe when a valley and a crest of an end portion of the corrugated pipe are compressed to form a flat radial surface, a connector welded to the joining portion, and a coupling ring compressed on the connector, so that the thickness of the welded portion of the corrugated pipe is doubled, and the portion where the coupling ring is compressed is formed on the groove portion of the connector.