Adjustable Wall Feed-Through Duct with Locking Mechanism
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Solution Overview
Problem
Existing ducts for insertion into walls or floors, used for feeding lines through, face issues with length adjustability and stability during concrete casting, leading to potential leakage and handling challenges due to lack of locking mechanisms.
Innovation Solution
A duct with a tube element composed of two displaceable pieces and a locking device that allows adjustable length, featuring a locking mechanism to secure relative positions, additional mounting elements for formwork attachment, and form-fit connections for assembly with other ducts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the tube element is made from a single piece, then the structure is simple and stable, but the length cannot be adjusted to accommodate different wall thicknesses
Solution Approach 1:
The tube element is divided into multiple separable pieces that can be connected together. Each piece has a standardized connection interface allowing them to be assembled in different configurations to achieve the required length for various wall thicknesses, thereby providing adjustability without requiring a completely different design for each application.
Solution Approach 2:
The tube element structure transitions from a fixed single-piece design to a dynamic multi-piece configuration that can be adjusted during installation. The connection pieces allow the overall length to be modified based on the specific wall thickness encountered, making the system adaptable rather than static.
2Adaptability or versatility
If the tube element pieces are displaceable relative to each other, then the length can be adjusted, but the tube elements may displace unintendedly during concrete casting causing leakage
Solution Approach 1:
The connection piece incorporates a locking mechanism that prevents unintended displacement of tube element pieces during concrete casting. The locking element is designed to engage with the connection piece and secure the tube pieces in their adjusted position, counteracting the forces exerted by the flowing concrete and preventing leakage.
Solution Approach 2:
The tube element length is adjusted and locked in place before the concrete casting process begins. This preliminary adjustment and locking action ensures that the tube elements are securely positioned to withstand the subsequent concrete pouring without displacement, preventing leakage issues during casting.
3Adaptability or versatility
If the tube element length is adjusted during mounting, then it can fit different wall thicknesses, but the handling becomes difficult without a locking mechanism
Solution Approach 1:
The locking mechanism in the connection piece prevents unintended displacement of tube element pieces during handling and installation. By securing the adjusted length position, the locking mechanism makes the tube element stable and easy to handle, eliminating the difficulty of managing unsecured adjustable sections during mounting operations.
Data Source
AI summary
The invention relates to a feed-through member (1) which is to be mounted in a wall element or floor element and comprises a tube element (2) that includes a first (23) and a second (24) tube element section. Said tube element sections (23, 24) can be moved relative to one another in the conducting direction (21) in such a way that the length of the tube element (2) is adjustable, a blocking mechanism (26, 32; 51, 61) being provided which at least partly prevents the tube element sections (23, 24) from moving when same are in the relative positions.