Adjustable Floor Box with Riser Adapter and Voltage Dividers
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Solution Overview
Problem
Existing electrical floor boxes have fixed heights, which cannot be adjusted after installation in concrete floors, and often fail to meet building codes requiring separation of high and low voltage wiring, necessitating pre-determination of interior volume and separation before wiring and activation.
Innovation Solution
A floor box assembly with an adjustable height, featuring a riser and adapter system that allows the electrical box to be positioned flush with the floor surface, and includes dividers for separating high and low voltage wiring, enabling adjustment and re-adjustment as needed to accommodate different flooring options and meet various electrical service requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed height floor box is used, then the structure is simple and manufacturing is easy, but the floor box cannot accommodate different floor depths and cannot be adjusted after installation
Solution Approach 1:
The floor box is divided into multiple height-adjustable sections or components that can be configured to different heights. This segmentation allows the floor box to adapt to various floor depths while maintaining a relatively simple overall structure, as each segment can be independently adjusted or selected based on installation requirements.
Solution Approach 2:
The floor box incorporates dynamic height adjustment capabilities, allowing it to change its effective height after installation. This may include adjustable risers, telescoping sections, or modular components that can be repositioned to accommodate different floor conditions, transforming a static structure into an adaptable one.
2Reliability
If building codes require separation of high and low voltage wiring, then safety is improved, but the interior volume must be predetermined and the structure becomes more complex
Solution Approach 1:
The interior of the floor box is segmented into separate compartments or zones for high voltage and low voltage wiring. This segmentation provides the required safety separation while maintaining a relatively simple structure, as the divisions can be achieved through basic partitions, baffles, or modular internal components rather than complex integrated systems.
Data Source
AI summary
An electrical floor box assembly includes a box having a bottom wall, a plurality of side walls and a top portion having an opening at a top end thereof for providing access to the electrical box. An adapter has an open top end, an open bottom end and a passage extending between the top end and bottom end. The adapter has an outer dimension complementing a dimension of the opening in the electrical box and is received in the opening for movement between a retracted position and an extended position within the opening. The electrical box and adapter are configured for coupling and fixing the axial movement of the adapter with respect to the electrical box by rotation of the adapter to a locking position. In one embodiment, the electrical box and the adapter have interlocking teeth that mate with each other to prevent axial movement of the adapter. A locking member is provided to fix the position of the adapter relative to the electrical box to prevent rotation of the adapter.