Pipe Coupling Clamp Band for Fast Leak-Proof Assembly

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Solution Overview

Problem

Existing pipe couplings face challenges in complex and time-consuming assembly processes, potential damage to sealing components, and difficulty in positioning inner housings, leading to leaks and increased production costs.

Innovation Solution

A pipe coupling design featuring a one-piece flat clamp band with longitudinal slots and a connecting arrangement that includes recesses and projections for secure positioning of the inner housing, allowing for easy assembly and alignment, while reducing material usage and assembly complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the inner housing consists of several individual, spaced apart segments, then the pipe coupling can be designed with segmented housing, but the assembly becomes massively more difficult and time-consuming

Engineering Contradiction:
Improvehousing structureVSAvoidassembly speed
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent merges multiple housing segments into a single-piece inner housing. This eliminates the need to individually assemble multiple segments around the elastic ring, dramatically simplifying the assembly process and eliminating the risk of damaging the elastic ring during segment assembly.

Inventive Principle:
Principle #5Merging (Combining)

2Device complexity

If multiple housing segments are used, then the pipe coupling can be modular, but the elastic ring is deformed and squeezed between segments causing leaks

Engineering Contradiction:
Improvehousing structureVSAvoidsealing integrity
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent combines multiple segments into a single-piece inner housing that provides a uniform, continuous sealing surface. This eliminates the gaps and pressure points between segments that cause elastic ring deformation and leakage, ensuring reliable sealing throughout the pipe coupling.

Inventive Principle:
Principle #5Merging (Combining)

3Manufacturing precision

If the clamp band and inner housing require coordinated manufacturing, then the pipe coupling can be precisely fitted, but the production process becomes complex and time-consuming

Engineering Contradiction:
Improvefit between componentsVSAvoidproduction process
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent simplifies manufacturing by making the inner housing a single-piece component that can be independently produced. This eliminates the need for complex coordination between multiple housing segments and the clamp band, reducing manufacturing complexity while maintaining precise fit through the unified structure.

Inventive Principle:
Principle #5Merging (Combining)

4Strength

If metal strips are fixed on the inside of the clamp band, then the clamp band can be structurally supported, but the strips cannot be positioned as desired during installation

Engineering Contradiction:
Improveclamp band structureVSAvoidpositioning flexibility
Core Design Contradiction:
StrengthVSAdaptability or versatility

Solution Approach 1:

The patent transitions from fixed metal strips to adjustable positioning elements that can be moved and positioned as needed during installation. This dynamic positioning capability allows optimal placement for different pipe configurations while maintaining the structural support function through the clamp band's inherent design.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3601865B1Pipe coupling
Publication Date: 2022.05.11 STRAUB WERKE
  • EP3601865B1 patent drawingFigure 1~2
  • EP3601865B1 patent drawingFigure 3~5
  • EP3601865B1 patent drawingFigure 6~8

AI summary

The invention relates to a pipe coupling (10) for connecting two pipe ends, comprising a clamp band (20) which has a longitudinal slot (22), an inner housing (40) arranged therein, and a clamping mechanism (12) for reducing the internal diameter of the clamp band (20). The clamp band (20) is additionally designed as a flat single piece and has an outer band portion and inner band portions which are connected to the outer band portion via at least one connection means. Furthermore, a connection assembly (30) is provided for securing the inner housing (40) in the clamp band (20), said connection assembly consisting of a first connection part and a second connection part. The first connection part extends into the second connection part, and at least one of the connection parts of the connection assembly (30) is designed as the at least one connection means for connecting the at least first outer band portion to the at least first inner band portion of the clamp band (20).