Pipe Coupling Assembly for Stable Fastening and Lower Flow Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing coupling assemblies for connecting pipes of different diameters face challenges in reducing fluid resistance and maintaining stability during the fastening process, often resulting in deformation and reduced workability due to the use of cast iron materials and complex structural features.
Innovation Solution
A coupling assembly with a watertight member featuring protrusions and reinforcing members that minimize fluid resistance and prevent deformation, allowing for stable fixation without deforming during the fastening process, and enabling efficient assembly of pipes with different diameters using fastening members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a continuous tongue portion is formed along the inner peripheral surface of the sealing portion to limit pipe insertion length, then the pipe end is effectively supported in the center of the coupling, but fluid flowing inside the pipe receives greater resistance and does not flow smoothly
Solution Approach 1:
The continuous tongue portion is divided into multiple discrete protrusions spaced apart from each other along the inner peripheral surface of the sealing portion. This segmentation maintains the pipe positioning function while reducing fluid resistance, as the spaced protrusions create less obstruction to fluid flow compared to a continuous tongue structure.
Solution Approach 2:
The protrusions are strategically positioned at specific locations along the inner peripheral surface rather than forming a continuous structure. This local placement provides sufficient pipe end support at critical points while minimizing the overall resistance to fluid flow through the coupling assembly.
2Stability of the object's composition
If the radius of curvature of the arcuate surface of the segment is formed to be equal to the radius of the outer peripheral surface of the fastening groove, then the segment is stably fixed, but it is difficult for an operator to work independently and work efficiency is reduced
Solution Approach 1:
The arcuate surface of the segment is pre-formed with a radius of curvature greater than the fastening groove radius, allowing the segment to be temporarily assembled and positioned before final fastening. This preliminary configuration enables operators to work independently without needing to maintain precise alignment during the fastening process, thereby improving work efficiency while still achieving stable fixation.
3Ease of operation
If the radius of curvature of the arcuate surface of the segment is formed to be greater than the radius of the outer peripheral surface of the pipe, then the segments can be moved in the axial direction and temporarily assembled with fastening members, but the segments may be deformed when the fastening member is tightened
Solution Approach 1:
The radius of curvature of the arcuate surface is specifically designed to be greater than the radius of the fastening groove, creating a geometric relationship that allows the segment to be temporarily assembled and moved axially without deformation during the fastening process. This parameter optimization ensures both ease of operation and shape stability.
Data Source
AI summary
Disclosed is a coupling assembly for pipe connection, which, even when connecting pipes having different diameters to each other, can reduce the resistance against a fluid flowing inside the pipes, can be installed in a state where couplers are temporarily assembled using fastening members, and is not deformed during the fastening process and thus can also be stably fixed after the fastening process.