Cavity Wall Box Quick Fastening for Tool-Free Secure Anchoring
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Solution Overview
Problem
Existing cavity wall boxes require cumbersome tool-based installation and secure anchoring in thin cavity walls, which is inefficient and time-consuming.
Innovation Solution
A cavity wall box with an adjustable anchoring device featuring at least one anchoring element that can be moved between an insertion and anchoring position without tools, using actuating elements for secure anchoring in cavity walls, facilitated by a design that allows for tool-free installation and intuitive operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixing device with special tools (e.g., screwdriver) is used for secure anchoring, then anchoring reliability is improved, but installation complexity and time consumption increase
Solution Approach 1:
The anchoring element is designed to be movable between a retracted position (for insertion) and an extended position (for anchoring). This dynamic transformation allows the same element to serve dual purposes: facilitating easy insertion and providing secure anchoring, thereby resolving the contradiction between installation ease and anchoring reliability
Solution Approach 2:
The anchoring device is designed to be self-actuating through simple user input (pushing or pulling motion). The mechanism automatically transforms the linear motion into rotational motion of the anchoring element, eliminating the need for special tools and complex operating procedures while maintaining reliable anchoring
2Reliability
If an anchoring device with extended anchoring elements is used, then anchoring security is improved, but insertion difficulty increases due to larger insertion contour
Solution Approach 1:
The anchoring element transitions from a retracted state (minimal insertion contour) to an extended state (maximal anchoring projection). This dynamic configuration change allows the device to have a small insertion profile that easily fits through wall openings, while providing extended anchoring capability once installed
Solution Approach 2:
The anchoring element is nested within the box body during insertion, similar to a nested doll structure. The anchoring element can be retracted into the box body, minimizing the overall insertion contour, and then extended outward to provide anchoring security, effectively hiding the larger anchoring structure within the smaller insertion profile
Data Source
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AI summary
The present invention relates to a cavity wall box (1) for electrical installations in a cavity wall, wherein the cavity wall box (1) has a box body (2) that forms an installation space (4) accessible via an installation opening (3), and wherein the cavity wall box (1) has an anchoring device (5) with at least one adjustable anchoring element (5b) for anchoring the cavity wall box (1) in the cavity wall when installed. In order to enable particularly simple and quick installation of the cavity wall box (1) in the cavity wall, the invention provides that the anchoring device (5) is adjustable between an insertion position in which the cavity wall box (1) has a minimized insertion contour for insertion into the cavity wall, and an anchoring position in which the at least one anchoring element (5b) protrudes beyond the insertion contour of the cavity wall box (1).