Split Coupling Sleeve for Quick Corrugated Pipe Connection

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Solution Overview

Problem

Existing connecting sleeves for corrugated pipes are complex and costly to manufacture, making them inefficient for quick and reliable connections.

Innovation Solution

A connecting sleeve divided into two identical half-sleeves with engagement elements that engage with corrugated pipe troughs, secured by snap-fit connections, allowing easy assembly and disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If complex one-piece or multi-part coupling sleeves are used to connect corrugated pipes, then connection reliability is improved, but manufacturing cost and device complexity increase

Engineering Contradiction:
Improveconnection reliabilityVSAvoidcoupling sleeve complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The coupling sleeve is divided into two separate semi-cylindrical half-shells that can be assembled around the corrugated pipes. This segmentation allows the coupling sleeve to be opened and closed like a clamp, enabling easy installation without requiring the pipes to be threaded through, while maintaining secure connection through the interlocking half-shells with engagement elements that grip the pipe corrugations

Inventive Principle:
Principle #1Segmentation

2Reliability

If complex one-piece or multi-part coupling sleeves are used to connect corrugated pipes, then connection reliability is improved, but manufacturing cost increases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The coupling sleeve is divided into two separate semi-cylindrical half-shells that can be assembled around the corrugated pipes. This segmentation allows the coupling sleeve to be opened and closed like a clamp, enabling easy installation without requiring the pipes to be threaded through, while maintaining secure connection through the interlocking half-shells with engagement elements that grip the pipe corrugations

Inventive Principle:
Principle #1Segmentation

3Stability of the object's composition

If traditional coupling sleeves are used to connect corrugated pipes, then connection stability is improved, but installation time increases

Engineering Contradiction:
Improveconnection stabilityVSAvoidinstallation time
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The coupling sleeve is divided into two separate semi-cylindrical half-shells that can be assembled around the corrugated pipes. This segmentation allows the coupling sleeve to be opened and closed like a clamp, enabling easy installation without requiring the pipes to be threaded through, while maintaining secure connection through the interlocking half-shells with engagement elements that grip the pipe corrugations

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The engagement elements are designed as separate integral hinges that protrude from the half-shells, allowing them to be independently positioned and engaged with the pipe corrugations. This extraction of the engagement function into separate elements allows for quick adjustment and secure gripping without complex assembly procedures

Inventive Principle:
Principle #2Taking out (Extraction)

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

Enables quick, reliable, and cost-effective connections of corrugated pipes with varying geometries and diameters, using elastic engagement elements for secure hold and snap-fit connections for stability.

Implementation Method 1

using elastic engagement elements for secure hold

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

secured by snap-fit connections

Methodology Applied
Scientific EffectMechanical Fastening: Mechanical Fastener

Data Source

PatentEP4650640A1Coupling sleeve for corrugated pipes
Publication Date: 2025.11.19 SOMA GMBH & CO KG
  • EP4650640A1 patent drawingFigure 1~2
  • EP4650640A1 patent drawingFigure 3
  • EP4650640A1 patent drawingFigure 4~5

AI summary

For connecting two corrugated pipes, the invention proposes a tubular connecting sleeve (1) with two identical, interlocking, semi-cylindrical shell-shaped half-sleeves (2) which have circumferential, semicircular ribs (6, 6') for engaging in the troughs of the corrugation of the corrugated pipes on their inner sides.