Attachment Piece and Insert for Pipe Integration in Concrete Elements

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Solution Overview

Problem

Existing methods for integrating pipes into wall or floor elements during construction, such as using double sleeves, are prone to fitting issues, contamination, and blockages, especially with sewer pipes, due to fixed lengths and susceptibility to debris accumulation.

Innovation Solution

A method involving an attachment piece with a contact section and a free holding section, combined with an insert piece, allows for the integration of a standard pipe with a socket and spigot end into the wall or floor element, enabling easier adjustment and reducing contamination risks by using a soft material attachment piece and a stabilizing insert piece, which can be made of synthetic rubber.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If double sleeves with fixed lengths are used to integrate pipes into wall elements, then the pipe integration is achieved, but fitting issues occur due to deviations in wall thickness and the device complexity increases

Engineering Contradiction:
Improveadaptability to wall thickness variationsVSAvoidcomplexity of pipe integration system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The attachment piece is divided into two functional sections: a contact section for securing to the pipe and a free holding section for receiving the insert piece. This segmentation allows each part to perform its specific function optimally while keeping the overall system simple.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The insert piece acts as an intermediary element between the attachment piece and the pipe. It provides the necessary spacing and support during concreting, enabling the attachment piece to maintain constant distance from the pipe outer surface without requiring complex adjustable mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If double sockets are used for pipe integration, then the pipe can be integrated into the wall, but contamination and blockages occur due to susceptibility to debris accumulation

Engineering Contradiction:
Improveresistance to contamination and blockagesVSAvoiddebris accumulation in pipe sockets
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The harmful feature of having open sockets susceptible to contamination is eliminated by removing the socket structure entirely. Instead, the attachment piece secures directly to the pipe outer surface, and the insert piece fills the spacing volume, preventing debris accumulation while maintaining pipe functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of manufacture

If specialized components are used for pipe integration during casting, then the pipe can be securely integrated, but the ease of manufacture decreases due to availability issues

Engineering Contradiction:
Improveavailability of pipe componentsVSAvoidsecurity of pipe integration
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The attachment piece is designed as a universal component that can be used with standard pipes during wall concreting operations. It performs multiple functions: securing to the pipe, maintaining spacing, and enabling easy removal after concreting. This multi-functionality eliminates the need for specialized single-purpose components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The insert piece is designed as a temporary, disposable element that serves its purpose during concreting and is then removed. It provides necessary structural support during the critical concreting phase but is not intended for long-term use, reducing costs and simplifying the overall system.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

4Stability of the object's composition

If rigid attachment pieces are used for pipe integration, then the structural stability is improved, but the ease of operation decreases due to difficulty in assembly

Engineering Contradiction:
Improvestructural stability during concretingVSAvoidease of assembly
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The attachment piece material properties are optimized by selecting rubber with specific Shore hardness values (40-70 Shore). This parameter selection provides the ideal balance: soft enough for easy assembly and pipe mounting, yet rigid enough to maintain structural stability during concreting operations.

Inventive Principle:
Principle #35Parameter changes

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

This approach eliminates the need for specialized components, allows for pipe length adjustment, reduces contamination and blockages, and provides better site availability by using standard pipes, while the soft attachment piece facilitates easier assembly and accommodates concrete shrinkage.

Implementation Method 1

The attachment piece (1) is placed on an outer surface (25) of the line (21) with a clamping means (30)

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

the insert piece (5) stabilizes the attachment piece (1) against compression with regard to the distance directions

Methodology Applied
Scientific EffectCompression resistance: Compression

Implementation Method 3

a soft material attachment piece and a stabilizing insert piece, which can be made of synthetic rubber

Methodology Applied
Scientific EffectElastic recovery: Elasticity

Data Source

PatentEP2851488B1A method of manufacturing a wall or floor element and the use of an attachment part in such a method
Publication Date: 2017.11.08 HAUFF TECHNIK GMBH & CO KG
  • EP2851488B1 patent drawingFigure 1
  • EP2851488B1 patent drawingFigure 2
  • EP2851488B1 patent drawingFigure 3

AI summary

The invention relates to a mounting piece (1) with an insertion piece for structural integration together with a conduit (21) into a wall or floor element (23) by casting with initially flowable and then solidifying material, wherein the mounting piece (1) maintains a space volume (24) around the conduit (21) and the insertion piece is inserted into the space volume (24) to stabilize the mounting piece (1) during casting.