Installation Box Membrane Segments for Corrugated Pipe Sealing
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Solution Overview
Problem
Existing hollow wall boxes require manual separation of the soft plastic membrane to insert installation pipes, which can lead to incomplete sealing and increased risk of material damage, especially when using corrugated pipes, and result in material waste if not properly installed.
Innovation Solution
The installation box design features a soft plastic membrane with a bead and tear contour where the opening area segments fold inward upon pipe insertion, creating retaining structures that prevent easy removal and provide enhanced sealing without needing to expand the bead to fit corrugated pipes, allowing for easier pipe insertion and improved wind tightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the opening area is completely cut out of the soft plastic membrane to allow pipe insertion, then the pipe can be easily inserted, but the sealing effect is compromised and material is wasted
Solution Approach 1:
The opening area is divided into multiple segments by radial tear contour branches extending from the inner zone to the bead. These segments can be separated to allow pipe insertion while remaining attached to the bead, maintaining the sealing effect while enabling easy installation.
Solution Approach 2:
The soft plastic membrane is pre-formed with a bead and tear contours during manufacturing. The tear contour branches are pre-positioned to guide the separation process, allowing the opening area to be easily divided into segments without requiring complex manual operations.
2Reliability
If the bead is expanded to fit corrugated pipes, then the pipe can be securely sealed, but the risk of bead damage increases
Solution Approach 1:
The opening area is segmented into multiple sections that can be separated along radial tear contours. This allows the pipe to be inserted through the gaps between segments without requiring expansion of the bead, thereby maintaining bead strength while achieving secure sealing.
Solution Approach 2:
Instead of expanding the bead to fit the pipe, the approach is inverted: the pipe is inserted through pre-formed gaps between the segmented opening area sections. The bead remains intact and provides sealing without needing to be expanded or deformed.
3Ease of operation
If the opening area segments are completely removed, then pipe insertion is simplified, but material waste occurs and sealing is compromised
Solution Approach 1:
The opening area is divided into segments by radial tear contour branches but remains connected to the bead. This segmentation allows for easy pipe insertion while keeping the membrane material in place, preventing waste and maintaining the sealing function.
Solution Approach 2:
Instead of completely removing the opening area segments, they are separated along predefined tear contours and retained in position. The segments are effectively 'recovered' and continue to serve a function by maintaining the sealing structure while allowing pipe access.
Data Source
Figure 1
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AI summary
The invention relates to an installation box 1 for electrical/electronic installations, comprising a box body for accommodating at least one electrical/electronic component, which has at least one pipe entry covered by a soft plastic membrane 5 for inserting the end section of an installation pipe 16. The soft plastic membrane 5 has, at a position provided for the insertion of the installation pipe 16, a bead 6 formed by material thickening and an opening area 7 enclosed by the bead 6, with a tear contour 9, 14 provided by a material weakening. The opening area 7 has an inner zone 8 and an outer zone 11 connected to the bead 6, which outer zone 11 surrounds the inner zone 8 and is separated from the inner zone 8 by a tear contour 9 and connected to the bead 6 by a connecting section.It is provided that the outer zone 11 is divided into several segments 15 arranged adjacent to each other in the circumferential direction by tear contour branches 14 extending from the tear contour 9 which limits the inner zone 8.