Building Feedthrough Layout for Outdoor Utility Access

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Solution Overview

Problem

Existing building installation methods face challenges in providing efficient and cost-effective outdoor access for utilities like electricity, water, and data connections, particularly in installations that require large casing pipe diameters and complex post-construction modifications.

Innovation Solution

A building installation arrangement featuring a bushing with a casting body integrated into a wall or floor element, connected to a casing pipe that extends into the ground, allowing media lines to exit the building and provide outdoor consumer connections without requiring extensive post-construction drilling or modifications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional building installation methods are used with post-construction drilling and modifications, then installation flexibility is maintained, but installation complexity and cost increase significantly

Engineering Contradiction:
Improveinstallation simplicityVSAvoidpost-construction modification complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The casting body is integrated into the wall or floor element during the construction phase, with casing pipes pre-positioned and extending through the structure. Media lines are laid through these pipes before the building is completed, eliminating the need for post-construction drilling and modifications. This preliminary action resolves the contradiction by simplifying installation while reducing post-construction complexity.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If large casing pipe diameters are used for outdoor utility access, then future expansion capability is improved, but installation difficulty and cost increase

Engineering Contradiction:
Improvefuture expansion capabilityVSAvoidinstallation ease
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The system divides the utility access into separate casing pipes that can be individually sized and positioned within the casting body. Each casing pipe can be optimized for specific media lines, allowing large diameters where needed for future expansion while maintaining manageable installation through the modular casting body structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple casing pipes with adequate diameters are pre-installed in the casting body during construction, providing future expansion capability without requiring difficult post-construction modifications. The preliminary placement of appropriately sized pipes resolves the contradiction between expansion capability and installation ease.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If media lines exit the building through the casting body to outdoor connections, then outdoor utility accessibility is improved, but building envelope integrity is compromised

Engineering Contradiction:
Improveoutdoor utility accessibilityVSAvoidbuilding envelope integrity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The casing pipes are nested within the casting body, which itself is integrated into the wall or floor element. Media lines are nested within the casing pipes, creating a hierarchical protection system. This nested structure provides outdoor utility accessibility while maintaining building envelope integrity through multiple protective layers.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The casting body acts as an intermediary structure between the building interior and exterior, providing sealed passages through the building envelope. The casing pipes serve as intermediate conduits that protect media lines while passing through the envelope. This intermediary approach resolves the contradiction by enabling outdoor accessibility while preserving envelope integrity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4047766B1Building installation arrangement
Publication Date: 2025.07.30 HAUFF TECHNIK GMBH & CO KG
  • EP4047766B1 patent drawingFigure 1
  • EP4047766B1 patent drawingFigure 2
  • EP4047766B1 patent drawingFigure 3

AI summary

The invention relates to a building installation arrangement (1) with a feedthrough (2) comprising a potting body (4) and a first sheathing tube (5.1) opening into the potting body (4), wherein the potting body (4) is installed in a wall or floor element (3) of a building (20) and the first sheathing tube (5.1) extends from the potting body (4) to the outside of the building (20) and runs at least partially in the ground (7) on the outside of the building, wherein a first media line (25.1) extends to the outside of the building (20) in the first sheathing tube (5.1), and wherein a consumer (80) or consumer connection (81) is arranged on the first media line (25.1) outside the building (20).