Pipe Fixing Device with Welded Engaging Parts
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Solution Overview
Problem
Forming corrugations on pipes, especially those made of harder materials like stainless steel, is difficult, and existing techniques fail to effectively suppress displacement in both axial and circumferential directions, affecting the reliability of the pipe's bending function.
Innovation Solution
A pipe fixing device comprising clamps and engaging parts that securely hold the pipe in place without the need for corrugations, using a combination of clamps and brazed plates or brackets to prevent axial and circumferential movement, regardless of the pipe material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If corrugations are formed on harder pipes like stainless steel, then displacement suppression in axial and circumferential directions is achieved, but forming corrugations becomes difficult and reliability degrades due to bending stress concentration
Solution Approach 1:
The invention divides the pipe into segments by adding engaging parts (plates or brackets) at specific locations. These engaging parts are welded to the pipe surface and provide discrete engagement points with the clamp, eliminating the need to form corrugations along the entire pipe length. This segmentation approach allows the pipe to maintain its original material properties while achieving displacement control.
Solution Approach 2:
The engaging parts (plates or brackets) serve as intermediary elements between the pipe and the clamp. Instead of directly deforming the pipe to create engagement features, these intermediary components are welded to the pipe and provide the necessary engagement surfaces. This mediator approach allows harder materials like stainless steel to be fixed without the difficulties of forming corrugations directly on the pipe.
2Reliability
If corrugations are formed on pipes, then axial and circumferential displacement is prevented, but bending stress concentrates at the corrugated part reducing reliability
Solution Approach 1:
By segmenting the pipe fixation through discrete engaging parts rather than continuous corrugations, the pipe structure maintains its integrity. The engaging parts are localized features that do not create continuous stress concentration zones, allowing the pipe to better resist bending stresses while still preventing displacement.
Solution Approach 2:
The engaging parts act as intermediaries that transfer clamping forces to the pipe without requiring direct deformation of the pipe wall. This indirect engagement method avoids creating weak points in the pipe structure, maintaining bending strength while achieving displacement prevention.
3Ease of operation
If clamps are used to fix pipes, then installation is simplified, but displacement control in both axial and circumferential directions is insufficient for harder pipe materials
Solution Approach 1:
The engaging parts serve as intermediary components that enable the clamp to effectively control displacement in both axial and circumferential directions. These welded plates or brackets provide positive engagement features that the clamp can grip, ensuring reliable displacement control while maintaining installation simplicity through the modular clamp-and-engaging-part system.
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
Effectively suppresses displacement in both axial and circumferential directions, ensuring reliable fixation of pipes to engines or vehicle bodies without the need for corrugations, even on materials that are challenging to form corrugations on, thus enhancing the pipe's stability and ease of installation.
Implementation Method 1
a bracket that is at one end welded to an outer circumferential surface of the pipe
Data Source
AI summary
A pipe fixing device includes: first and second clamps that fix a pipe; and first and second engaging parts that are fixed to the pipe and engage respectively with the first and second clamps. The first clamp and the first engaging part configured to engage with each other such that the first engaging part is restrained from moving toward one side in an axial direction of the pipe and from moving in a circumferential direction of the pipe relative to the first clamp. The second clamp and the second engaging part configured to engage with each other such that the second engaging part is restrained from moving toward another side in the axial direction of the pipe and from moving in the circumferential direction of the pipe relative to the second clamp.