Modular Cast-In Part With Threaded Cladding Tube
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Solution Overview
Problem
Existing cast-in parts for leading through lines in construction are not modular and cannot be continuously cut to length, leading to instability and increased complexity in production, especially for larger component thicknesses, and require additional securing measures for fire and liquid sealing.
Innovation Solution
A modular cast-in part design featuring a cladding tube with a thread-like outer contour and a base part with a corresponding thread-like inner contour, allowing for seamless connection and cutting to desired lengths without machining, along with an intumescent mass for fire protection and a swelling mass for liquid sealing, ensuring secure and leak-proof connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cast-in parts are produced in fixed lengths, then production is simplified, but they cannot accommodate larger component thicknesses without auxiliary constructions
Solution Approach 1:
The cast-in part is divided into a base part and a cladding tube that can be connected together. The cladding tube can be produced in standard lengths and then extended by adding additional tubes, allowing adaptation to various component thicknesses without requiring completely different auxiliary constructions for each thickness.
Solution Approach 2:
The cladding tube length is made variable and adjustable rather than fixed. Users can cut the tube to the required length and connect additional sections as needed, transforming the static fixed-length design into a dynamic, adaptable configuration that responds to different installation requirements.
2Ease of operation
If cladding tubes are cut to length, then they fit specific component thicknesses, but the cutting edge becomes unstable
Solution Approach 1:
The thread-like outer contour is pre-formed on the cladding tube before cutting. This preliminary preparation ensures that when the tube is cut to length, the threaded portion remains intact and functional, eliminating the need to re-machine the cutting edge and maintaining stability without compromising ease of installation.
3Ease of manufacture
If cover parts are fixed by positive fit only, then assembly is simple, but additional securing measures are required
Solution Approach 1:
The connection between the cover part and cladding tube merges the positive fit mechanism with integrated securing features. The thread-like contours and protrusions are combined into a unified connection system that provides both the simple snap-in assembly and the necessary securing function in a single integrated mechanism.
4Ease of manufacture
If one-piece housing is used, then production is simple, but fire protection requires intumescent mass that complicates design
Solution Approach 1:
The housing is segmented into modular components (base part, cladding tube, cover part) that can be produced separately using simple one-piece methods. The fire protection intumescent mass is then integrated into specific cavities or spaces between these segments, allowing fire protection to be added without complicating the basic manufacturing of each individual component.
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
The modular design allows for easy assembly and adjustment of cast-in parts, providing effective fire and liquid sealing without additional securing measures, enhancing stability and reducing production complexity while accommodating various component thicknesses and applications.
Implementation Method 1
the tubular devices comprise in a space surrounding a through-opening, e.g. B. a fire-retardant mass that intumesces in the event of fire and closes the passage during expansion
Implementation Method 2
For sealing against liquids, a mass that swells on contact with the liquid can be provided as a sealing means in the receiving space
Data Source
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AI summary
The part has a cladding tube (12) and a base part (14) connected with the cladding tube. The base part has a receiving area (16) for a sealing unit (17), where the receiving area is surrounded by a passage opening (15). The cladding tube has thread-like outer contour (13), where the base part has a thread-like inner contour (18) that corresponds to the outer contour in an area of the passage opening. The outer contour is connected with a cover part (21).