Pivot Clip Pipe Coupling for One-Side Accessible Installation

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Solution Overview

Problem

The existing pipe coupling methods require sequential and alternating tightening of nuts and bolts, which can be time-consuming and difficult when one end is not accessible, especially when fitting onto pipe ends.

Innovation Solution

A pipe coupling system featuring a pivot clip that maintains a separation distance between segments, allowing for easier installation by initially placing the pivot clip between the segments and then tightening one element to draw the ends together, enabling the insertion of pipes before fully tightening the coupling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If sequential and alternating tightening of nuts and bolts is used to join pipe couplings, then the coupling space between opposite ends can be kept substantially the same, but the installation process becomes time-consuming and difficult when one end is not accessible

Engineering Contradiction:
Improvecoupling space uniformityVSAvoidinstallation time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The pivot clip is pre-installed on the coupling segment before the coupling is fitted onto the pipe ends. This preliminary action establishes a fixed reference point and maintains proper spacing between coupling ends throughout the tightening process, eliminating the need for complex alternating tightening procedures and enabling faster installation even when one end is inaccessible

Inventive Principle:
Principle #10Preliminary action

2Manufacturing precision

If sequential and alternating tightening of nuts and bolts is used, then consistent spacing can be achieved, but the process encounters difficulties when one end is not accessible

Engineering Contradiction:
Improvespacing consistencyVSAvoidoperation accessibility
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The pivot clip acts as an intermediary component that physically maintains the spacing between coupling ends. By introducing this intermediate element, the system no longer relies on the operator's ability to access and measure both ends simultaneously, thereby solving the accessibility problem while preserving spacing consistency

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If traditional fastening methods are used without a pivot clip, then the coupling can be fully tightened, but the installation process becomes complex and time-consuming

Engineering Contradiction:
Improvecoupling tightnessVSAvoidfastening process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The pivot clip is designed to automatically maintain proper spacing and guide the tightening process without requiring complex operational procedures. The component serves itself by its geometric design and physical constraints, eliminating the need for operators to perform complex alternating tightening sequences while ensuring reliable coupling tightness

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11371630B2Pivot clip
Publication Date: 2022.06.28 ASC ENGINEERED SOLUTIONS LLC
  • US11371630B2 patent drawing
  • US11371630B2 patent drawing
  • US11371630B2 patent drawing

AI summary

A pipe coupling can comprise a first segment comprising a first end and a second end distal to the first end; a second segment comprising a first end and a second end distal to the first end; a first tightening element configured to draw the second end of the first segment towards the first end of the second segment; a second tightening element configured to draw the first end of the first segment towards the second end of the second segment; and a pivot clip between the second end of the first segment and the first end of the second segment, the pivot clip configured to maintain a separation distance between the second end of the first segment and the first end of the second segment.