Inverting Sealing Sleeve for Thin Wall Pipe Penetrations
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Solution Overview
Problem
Existing sealing sleeves for casting into wall or floor elements, such as those made of concrete, often require complex configurations or additional fastening methods to ensure mechanical stability and efficient sealing, which can increase material usage and thickness, limiting their application in thin elements.
Innovation Solution
A sealing sleeve design featuring a casting section and an inverting section that is inserted during casting, allowing for a compact axial configuration, with the everting section being turned out to accommodate a tube, providing a stable and radially large sealing surface, and optionally incorporating features like web seals, elastomeric materials, and closure flaps for enhanced functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing sleeve is cast into concrete with a traditional configuration, then mechanical stability and sealing efficiency are achieved, but the wall or floor element thickness increases and material usage increases
Solution Approach 1:
The sealing sleeve is divided into two distinct sections: a casting section that remains fixed in the wall element and an inverting section that is folded out after casting. This segmentation allows the sleeve to achieve its full functional length and sealing surface area while maintaining a compact configuration during the casting process, thereby reducing the required wall thickness without compromising mechanical stability or sealing efficiency.
Solution Approach 2:
The inverting section is designed to be dynamic, transitioning from a folded-in state during casting to an extended state after casting. This dynamic transformation allows the sealing sleeve to adapt its configuration: compact during installation (reducing thickness requirements) and extended during operation (providing full sealing surface and mechanical stability).
2Reliability
If a sealing sleeve is cast into concrete with a traditional configuration, then sealing efficiency is achieved, but material usage and weight increase
Solution Approach 1:
By dividing the sealing sleeve into casting and inverting sections, the design eliminates the need for excessive material to achieve both compact storage and full functional length. The inverting section uses material efficiently by folding along the longitudinal axis, providing maximum sealing surface area with minimum material consumption, thereby reducing weight while maintaining sealing efficiency.
3Length of stationary object
If a sealing sleeve with a folded-in section is used during casting, then axial compactness is achieved, but additional fastening methods are required after casting
Solution Approach 1:
The inverting section transforms from a folded-in to an extended state after casting, and this dynamic transformation itself serves as the fastening mechanism. When the inverting section is folded out and pressed onto the pipe, it creates a tensioning clamp effect that secures the pipe without requiring separate fastening components. The dynamic action of inverting replaces complex static fastening systems.
4Ease of operation
If the inverting section is folded out to accommodate a pipe, then ease of pipe insertion is improved, but the structural configuration becomes more complex
Solution Approach 1:
The sealing sleeve is segmented into a fixed casting section and a flexible inverting section. This segmentation allows the inverting section to be folded out to accommodate pipe insertion while the casting section maintains structural integrity. The segmented design simplifies the overall configuration by separating the structural support function from the pipe accommodation function, making the system easier to operate despite the added folding capability.
Data Source
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AI summary
The invention relates to the use of a sealing sleeve (1) for casting into a wall or floor element (2), which sealing sleeve (1) has a casting section (1a) and a slip-on section (1b), wherein i.) the slip-on section (1b) is inverted into the casting section (1a) during the casting of the sealing sleeve (1) and ii.) the slip-on section (1b) is inverted after the casting of the sealing sleeve (1), wherein iii.) a tube (20) is then inserted into the inverted slip-on section (1b) to an end position in which one end of the tube (20) is arranged in the sealing sleeve (1).