Installation Box Magnet Retention for Concrete Formwork
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Solution Overview
Problem
Conventional installation boxes with permanent magnets are difficult to remove after concrete pouring, limiting their reusability and flexibility in concrete structures.
Innovation Solution
The installation box design features a magnet held by a fastening mechanism with an undercut and frictional connection, allowing for easy detachment and reusability, along with a structured surface for better adhesion and a display device for positioning, enabling secure temporary fixation and easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If permanent magnets are permanently installed in the installation box for secure attachment to formwork, then the fixation reliability is improved, but the ease of removal deteriorates
Solution Approach 1:
The magnet is segmented from the installation box by using a removable fastening mechanism. The magnet can be separated from the box body after concrete pouring, allowing the box to remain in the concrete while the magnet is removed for reuse. This resolves the contradiction by making the magnetic attachment component detachable rather than permanent.
Solution Approach 2:
The magnet is designed to be discarded temporarily after use and then recovered for reuse. The fastening mechanism allows the magnet to be easily removed from the installation box after the concrete has set, enabling the magnet to be recovered and used in subsequent installations. This directly addresses the contradiction between secure fixation and ease of removal.
2Reliability
If the magnet is strongly fastened to the box body for secure handling, then the fixation reliability is improved, but the ease of manufacture deteriorates
Solution Approach 1:
The fastening mechanism is segmented into separate components (fastening means on the box body, corresponding fastening elements on the magnet) that can be manufactured independently and then assembled. This reduces manufacturing complexity while maintaining secure attachment during concrete pouring.
Solution Approach 2:
A pin or intermediate fastening element is introduced between the magnet and the box body to provide the strong connection. This intermediary component simplifies the manufacturing process by providing a standardized interface for attachment while ensuring reliable fixation during the concreting process.
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 solution enables simple and secure temporary fixation to a magnetic surface, facilitates easy removal of the magnet for reuse, and provides a means to locate the installation box position after plastering, enhancing reusability and installation efficiency.
Implementation Method 1
Installation boxes in which permanent magnets are permanently installed are known from the prior art. These can be mounted in the box itself or in a lid of the box... Fastening to metal formwork is also increasingly taking place in concrete casting plants... which allows the elements to be inserted to be temporarily attached to the surface of the future wall using magnets.
Implementation Method 2
The fastening according to the invention is carried out by means of a positive connection (using an undercut) and can also be carried out via a frictional connection (such as a clamping).
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to an installation box (1) comprising a box body (2) and a cover (3). The box body (2) comprises a base (4) and a wall (5) adjoining the base (4), forming an installation space (6). Opposite the base (4) is an installation opening (7) which allows access to the installation space (6) and is closed by the cover (3) when installed. The base (4) and/or the cover (3) includes a recess (9) on a mounting side (8) facing away from the installation space (6), which serves to temporarily receive a magnet (10).