Rubber Cable Penetration Holder for Thermal Expansion Sealing
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Solution Overview
Problem
Existing frameworks for cable penetrations in construction elements are inflexible, prone to deformation due to unequal thermal expansion, require skilled labor for installation, and compromise sealing integrity due to gasket misapplication or thermal expansion, posing risks of leaks and detachment.
Innovation Solution
A rubber-based holder with integrated gasket and sealing plugs, designed to accommodate deformation and thermal expansion, eliminating the need for sealants and skilled labor, and ensuring immediate sealing integrity through air pockets and ridges for thermal insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid framework (metal or engineering plastic) is used for cable penetration, then structural strength and stability are improved, but flexibility and ability to accommodate deformation are worsened
Solution Approach 1:
The patent changes the material parameter from rigid (metal or engineering plastic) to elastomeric, which fundamentally alters the mechanical properties. The elastomeric material can dynamically change its shape and accommodate deformation while maintaining structural integrity, resolving the contradiction between strength and adaptability.
Solution Approach 2:
The holder is made of elastomeric material that combines the properties of flexibility and structural strength. This composite approach allows the material to exhibit both rigidity for strength and elasticity for deformation accommodation, simultaneously satisfying both requirements.
2Reliability
If a gasket is used between the framework and construction element, then sealing integrity is improved, but reliability is worsened due to potential misapplication or forgetting
Solution Approach 1:
The gasket function is merged with the holder body by making the entire holder from elastomeric material. The holder itself provides the sealing function through its material properties and deformation capability, eliminating the need for a separate gasket component and simplifying installation while maintaining sealing integrity.
Solution Approach 2:
The elastomeric holder automatically adapts to the construction element surface and provides sealing through its inherent material properties. The material's elasticity allows it to conform to surface irregularities and maintain sealing without requiring precise installation or additional components, making the system self-sealing.
3Strength
If a metal framework is used, then structural strength is improved, but thermal expansion compatibility is worsened leading to detachment or fracturing
Solution Approach 1:
The patent changes the material from metal to elastomeric, which has fundamentally different thermal expansion properties. Elastomeric materials typically have lower thermal expansion coefficients and can accommodate dimensional changes through elastic deformation, maintaining compatibility with various construction elements under thermal stress.
Solution Approach 2:
The elastomeric holder acts as a flexible element that can accommodate thermal expansion and contraction of both the framework and construction element. The material's elasticity allows it to absorb dimensional changes without causing stress concentration, detachment, or fracturing.
4Manufacturing precision
If skilled labor is required for installation, then installation precision is improved, but productivity is worsened
Solution Approach 1:
The elastomeric holder is designed to be self-installing through its material properties. The material's flexibility and deformability allow it to be inserted and automatically conform to the opening and construction element, providing sealing and fixation without requiring skilled labor or complex installation procedures, thereby increasing productivity while maintaining precision.
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 rubber holder maintains sealing integrity under dynamic and thermal stress, reduces installation complexity, and enhances fire resistance by transforming into ceramic upon exposure to high temperatures, thus preventing leaks and detachment.
Implementation Method 1
the rubber is a ceramifiable rubber. Such rubbers contain fillers that facilitate stabilization of the shape of the holder whilst being exposed to a nearby fire and thus to heat and oxygen. The stabilization results from transforming the rubber into a ceramic
Implementation Method 2
the face comprising structures for enclosing air between the gasket and the endless part
Implementation Method 3
The holder is of a material that predominantly comprises rubber. This contributes to an ability of the holder to sustain deformation of the construction element
Data Source
AI summary
Holder for placement in and/or against an opening in a construction element, wherein the holder is provided with a flange for extending outside of the opening beyond a perimeter of the opening, the holder further being provided with a plurality of channels for hosting in each channel at least one cable for extending from one side of the holder to another side of the holder, wherein the holder is of a material that predominantly comprises rubber.