Floor Box Cover Sealing and Lid Security Mechanism
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Solution Overview
Problem
Conventional electrical box covers lack effective sealing and securement mechanisms, allowing contaminants like water and dust to enter and making it difficult to prevent accidental removal of fasteners, which compromises the integrity and accessibility of electrical devices.
Innovation Solution
The design incorporates a compressible ring gasket and fastener gasket that friction-fit within the lid and cover plate, respectively, to create a seal and secure the lid in place, using a fastener with an annular structure and threaded shaft to prevent easy removal and ensure a tight fit, while allowing for easy access when needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional electrical box covers are used without sealing mechanisms, then the structure remains simple and easy to manufacture, but contaminants like water and dust can enter the electrical box, compromising device integrity
Solution Approach 1:
The patent employs a ring gasket made of flexible material that can be compressed between the lid and cover plate to create an effective seal. This flexible film approach prevents contaminant entry while adding minimal structural complexity, directly resolving the contradiction between sealing effectiveness and device simplicity.
2Reliability
If conventional fasteners are used without securement mechanisms, then the lid can be easily removed for access, but accidental removal occurs and security is compromised
Solution Approach 1:
The patent incorporates a fastener with an annular structure that engages with the cover plate before the lid is fully closed, creating a preliminary securement that prevents accidental removal. The fastener is pre-positioned to engage with the cover plate, ensuring security is established before final closure, while still allowing intentional removal when needed.
3Reliability
If a securement mechanism with friction-fit fasteners is implemented, then accidental removal is prevented, but the fasteners may become difficult to remove intentionally
Solution Approach 1:
The patent utilizes friction-fit fasteners where the engagement strength can be controlled by adjusting parameters such as fastener diameter, engagement depth, and material properties. The annular structure of the fastener provides sufficient friction to prevent accidental removal while maintaining the ability to be intentionally removed with appropriate force, balancing security and operability.
4Object-affected harmful factors
If a ring gasket is compressed to seal the electrical box, then effective sealing against contaminants is achieved, but the sealing force may damage the gasket or surrounding structures
Solution Approach 1:
The patent positions the ring gasket between the lid and cover plate where it can be compressed to create a seal without concentrating excessive force on a single point. The annular structure of the gasket distributes the sealing force evenly around the perimeter, providing effective sealing while preventing damage to the gasket or surrounding structures through beforehand cushioning of the compressive force.
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
This configuration effectively seals the electrical device from contaminants, secures the lid to prevent accidental removal, and allows for easy access when required, enhancing the reliability and durability of the electrical box cover.
Implementation Method 1
a compressible ring gasket and fastener gasket that friction-fit within the lid and cover plate, respectively, to create a seal
Implementation Method 2
a compressible ring gasket and fastener gasket that friction-fit within the lid and cover plate, respectively
Implementation Method 3
using a fastener with an annular structure and threaded shaft to prevent easy removal and ensure a tight fit
Data Source
AI summary
A floor box cover includes a base plate that engages an electrical device and a cover plate connected to the base plate. The cover plate includes a first opening to expose the electrical device and a second opening to receive a lid. A connector is inserted into an aperture in the lid and engages the cover plate to secure the lid within the second opening, causing the lid to conceal the first opening. A connector gasket engages the connector to prevent the connector from being easily removed from the lid. The connector gasket may be compressed within the aperture to seal the aperture when the connector engages the cover plate. A compressible ring gasket may be friction fit within the second opening, and when the connector engages the cover plate, the lid may compress the ring gasket to seal the second opening.