Universal Adjustable Circuit Breaker Lock Device
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Solution Overview
Problem
Existing circuit breaker restraint devices are often incompatible with different brands, bulky, and costly, posing safety risks and hindering access to circuit breaker boxes due to their size.
Innovation Solution
A universal adjustable breaker lock device with multiple locking members and a translation mechanism that accommodates various switch handle widths, coupled with a blocking member and cover member for secure engagement and adjustable installation, preventing accidental switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If restraint devices are designed with width equal to switch handle, then engagement reliability is improved, but device size and material usage deteriorate
Solution Approach 1:
The restraint device is divided into multiple separate components including adjustable arms, mounting brackets, and interface elements rather than using a single solid block. This segmentation allows the device to achieve reliable engagement through precise positioning of individual components while minimizing overall material usage and device volume
Solution Approach 2:
The device incorporates thin-walled construction and flexible positioning mechanisms that maintain structural integrity for reliable engagement while significantly reducing material usage. The thin-walled arms and brackets provide sufficient strength for engagement reliability without the bulkiness of solid construction
2Reliability
If restraint devices are made bulky for reliable engagement, then engagement stability is improved, but ease of installation and access to circuit breaker box deteriorates
Solution Approach 1:
The restraint device is composed of modular segments that can be independently positioned and installed. This segmentation allows installers to access specific components easily while the assembled device provides stable engagement, resolving the contradiction between stability and ease of installation
Solution Approach 2:
The device incorporates adjustable and movable components that can be easily repositioned during installation to achieve proper engagement. The dynamic adjustment capabilities allow for easy installation and configuration while maintaining stable engagement once installed
3Manufacturing precision
If manufacturer-specific restraint devices are produced, then manufacturing precision for specific models is improved, but adaptability to other brands deteriorates
Solution Approach 1:
The restraint device incorporates adjustable components with varying lengths, positions, and configurations that can be dynamically adjusted to match different circuit breaker models. This adjustability maintains manufacturing precision for each specific model while enabling broad brand compatibility through a single universal device design
Data Source
AI summary
A universal adjustable breaker lock device for a switch handle includes at least two locking members each having a channel adapted to accommodate the switch handle. The locking members are coupled to a translation member allowing the locking members to translate along a longitudinal axis of the translation member. A lever arm extends from a base wall or the translation member a distance greater than the width of the channel. In alternate embodiments, a cover, with two apertures, is disposed on the lever arm, to prevent engagement with a fastener. In the alternative embodiment, a lock may be disposed through the apertures to prevent removal of the universal breaker lock device while in use.