Rotatable Cover Locking Device for Sequential Padlock Safety
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Solution Overview
Problem
Conventional lockout devices lack sequential locking/unlocking capabilities and fail to secure the key slot, making them susceptible to tampering and not providing adequate workplace safety.
Innovation Solution
A locking device with a rotatable cover that can be secured in a secondary locked position using a padlock, allowing for sequential locking and unlocking, and featuring protective seals to prevent foreign material ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the key slot is exposed at the bottom surface for easy access, then the ease of operation is improved, but the security against tampering deteriorates
Solution Approach 1:
The cover is made rotatable between a first position (closing the key slot) and a second position (exposing the key slot). This dynamic configuration allows the key slot accessibility to change based on the cover position, resolving the contradiction between ease of operation and security against tampering.
Solution Approach 2:
The rotatable cover acts as an intermediary element between the key slot and the external environment. It controls access to the key slot by rotating between closed and open positions, and can be secured in the closed position using a secondary locking device, thus mediating between ease of operation and security requirements.
2Reliability
If a rotatable cover is added to control key slot access, then the security against tampering is improved, but the device complexity increases
Solution Approach 1:
The cover is designed to rotate between two positions rather than requiring complex mechanical linkages or electronic controls. This simple dynamic movement provides security control with minimal added complexity.
Solution Approach 2:
The locking device is segmented into distinct functional components: the main body, the rotatable cover, and the secondary locking device. This segmentation allows each component to perform its specific function independently, making the overall system easier to understand and maintain despite the added security feature.
3Reliability
If sequential locking is implemented requiring multiple padlocks, then the workplace safety is improved, but the time required for locking/unlocking increases
Solution Approach 1:
The sequential locking mechanism requires padlocks to be attached in a specific order (first padlock to the cover, second padlock to the body). This preliminary arrangement of locking steps ensures that safety protocols are followed systematically, with each locking action building upon the previous one.
Solution Approach 2:
The rotatable cover enables sequential locking by providing an intermediate locking point. The first padlock secures the cover in the closed position, and the second padlock secures the body, creating a dynamic two-stage locking process that enhances safety while maintaining reasonable operation time.
Data Source
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AI summary
Present disclosure generally relates to a locking device through which multiple operators can use as a hasp lockout device to restrict access to controlled devices and areas. The locking device provides the operator to prevent unauthorised personnel's from accessing the key slot of the locking device. Furthermore, the operator can employ multiple padlocks in a sequential manner as to establish a sequence of locking or unlocking, improves the workplace safety.