Pipe Coupling Assembly With Segmented Sealing Protrusions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pipe couplings face challenges in reducing fluid resistance when connecting pipes of different diameters, leading to inefficient work processes and potential deformation during fastening, especially when using cast iron materials.
Innovation Solution
A coupling assembly with a watertight member and reinforcing members that minimize fluid resistance by spacing protrusions and using interference preventing grooves, allowing temporary assembly without deformation, and ensuring stable fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
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, but fluid resistance increases for larger diameter pipes
Solution Approach 1:
The continuous tongue portion is divided into multiple discrete protrusions spaced along the inner peripheral surface of the sealing portion. This segmentation maintains the pipe support function while reducing fluid resistance by creating gaps between the protrusions that allow smoother fluid flow, particularly benefiting larger diameter pipes where fluid flow smoothness is more critical.
2Stability of the object's composition
If the radius of curvature of the arcuate surface is made equal to the radius of the fastening groove outer peripheral surface for stable fixation, then the segment is stably fixed, but the assembly process becomes complex requiring precise positioning
Solution Approach 1:
The arcuate surface of the segment is pre-formed with a radius of curvature greater than that of the fastening groove outer peripheral surface. This preliminary configuration allows the segment to be temporarily assembled and positioned easily without requiring precise alignment during assembly. The segment is then deformed during the fastening process to achieve stable fixation, separating the ease of assembly from the stability of fixation.
3Stability of the object's composition
If the segment is deformed during fastening to match the fastening groove radius for stable fixation, then reliable connection is achieved, but cast iron segments are prone to breaking and damage
Solution Approach 1:
The segment is pre-formed with an arcuate surface having a larger radius of curvature than the fastening groove, allowing temporary assembly without deformation. This preliminary configuration enables the segment to be positioned and secured without subjecting brittle cast iron material to excessive deformation stresses that would cause breaking or damage during the fastening process.
4Reliability
If multiple segments are fastened simultaneously with fastening members while maintaining arrangement, then continuous pipe connection is achieved, but work efficiency decreases due to difficulty in independent operation
Solution Approach 1:
Multiple segments are pre-assembled in their correct arrangement positions before fastening, forming a temporarily assembled structure. This preliminary arrangement allows segments to be positioned independently without requiring complex coordination during fastening, significantly improving work efficiency. The temporary assembly maintains the correct configuration for continuous pipe connection while simplifying the fastening operation.
Data Source
Figure 1
Figure 2
Figure 3(a)~3(b)
AI summary
The present invention relates to a coupling assembly for pipe connection, and more specifically to 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.