Preassembled Pipe Coupling Assembly for Stable Groove Locking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional pipe coupling assemblies face challenges in work efficiency due to the need for deformation during fastening, which can lead to segment breakage and instability, especially when made from cast iron, limiting their application in construction sites.
Innovation Solution
A coupling assembly design where couplers with an arch-shaped surface are preassembled with fastening members, allowing them to be installed without deformation, with a radius of curvature greater than the pipe's outer surface, and partially cutting the arch-shaped surface to fit within fastening grooves, maintaining stability and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If segments are designed with arch-shaped surfaces that match the fastening groove radius, then stable fixation is achieved, but the segments require deformation during fastening which causes breakage and reduced work efficiency
Solution Approach 1:
The coupling is pre-assembled with fastening members before installation on the pipe. This preliminary assembly allows the coupling to be prepared in advance, and during installation, the entire pre-assembled unit is simply moved axially onto the pipe without requiring deformation or complex manipulation at the installation site, thus improving work efficiency while maintaining stable fixation
2Ease of manufacture
If segments are made from cast iron material, then manufacturing cost is reduced, but the segments are prone to breakage and damage during deformation process
Solution Approach 1:
By pre-assembling the coupling with fastening members before installation, the need for deformation during the fastening process is eliminated. This allows cast iron segments to be used without the risk of breakage that would occur during deformation, thus maintaining both low manufacturing cost and high strength
3Productivity
If segments are coupled using fastening members while maintaining their shape, then work efficiency improves, but the segments cannot be stably fixed in the fastening grooves
Solution Approach 1:
The coupling is pre-assembled with fastening members in advance, creating a complete unit that maintains its shape throughout installation. The pre-assembled coupling is then simply moved axially onto the pipe, eliminating the need for deformation while ensuring stable fixation through the pre-positioned fastening members
Data Source
AI summary
A coupling assembly for pipe connection and a method of manufacturing the same are disclosed. The coupling assembly for pipe connection is installable while a coupler is preassembled using a fastening member and is not deformed even in a fastening process so as to be stably fixed even after fastening. The coupling assembly is configured so that two or more couplers are disposed to face each other to connect pipes consecutively disposed in an axial direction and the pipes are connected while a fastening member is preassembled to the plurality of couplers, each of the couplers includes a locking part that is inserted into a fastening groove formed in the pipe, a portion of the locking part is inserted into the fastening groove, and the remaining portion of the locking part is disposed outside the fastening groove.