Reinforced Wall Penetration Bushing Deformation Control
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Solution Overview
Problem
Plastic bushings used for passing lines through wall or floor elements often deform under installation forces, compromising their functionality and sealing integrity, which can lead to moisture penetration due to gaps formed between the tubular element and the wall or floor.
Innovation Solution
A mechanically reinforced plastic tubular element with a reinforcing element spaced apart from suspension elements, providing central longitudinal support and designed to prevent deformation, with a predetermined breaking point for easy removal after installation, ensuring secure sealing and easy passage of lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a plastic tubular element is used for the bushing, then the bushing can be easily manufactured and assembled, but the tubular element deforms under installation forces
Solution Approach 1:
The patent applies composite materials by combining plastic material with reinforcing elements (such as fiber-reinforced plastics, metal inserts, or wooden elements) to create a tubular element that maintains the ease of manufacture and assembly of plastic while gaining the strength and deformation resistance of the reinforcing materials. The reinforcing elements are integrated into the plastic structure through embedding, coating, or mechanical connection.
2Strength
If the tubular element is reinforced, then deformation is prevented, but the sealing functionality is impaired due to deformation of the sealing element
Solution Approach 1:
The patent segments the tubular element into distinct functional zones: a reinforcement zone containing the reinforcing elements for strength and deformation prevention, and a sealing zone with a sealing element (such as a gasket or O-ring) that remains free of reinforcing elements to ensure proper sealing contact and functionality. This segmentation allows each zone to optimize its specific function without compromising the other.
3Ease of operation
If suspension elements are added for mounting, then the bushing can be fastened during installation, but the tubular element is more prone to deformation in sections without suspension elements
Solution Approach 1:
The patent applies local quality by providing non-uniform reinforcement distribution: the reinforcing elements are strategically positioned in sections of the tubular element where suspension elements are not present, creating locally adapted structural properties. This ensures that areas without suspension elements (which are more vulnerable to deformation) receive additional reinforcement, while areas with suspension elements maintain their mounting functionality.
Data Source
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AI summary
The present invention relates to a penetration (1) for installation in a wall or floor element; this penetration (1) comprises a pipe element (2) for guiding a cable through it, on the outside of which a suspension element (3) is provided for mounting the penetration during installation. According to the invention, a reinforcing element (8) is provided integrally with the pipe element (2), extending centrally through the passage opening and arranged in a section of the pipe element (2) free of external suspension elements (3).