Preloaded Barrel Lock Eliminates Installation Key
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Solution Overview
Problem
Existing barrel locks for utility boxes require an installation key, which can lead to security issues due to key loss or theft and are time-consuming to install, and known preloaded locks are limited to plunger style, which has design limitations and can be easily defeated.
Innovation Solution
A preloaded rotatable disk barrel lock that eliminates the need for an installation key by using a stem and cylinder configuration with biased rotational movement, allowing the lock to be preloaded into a split ring for easy installation and enhanced security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a key-based barrel lock installation method is used, then the lock can be installed on utility boxes, but security risks increase due to key loss or theft and installation time increases
Solution Approach 1:
The barrel lock is pre-assembled with the split ring at the factory before shipment. This preliminary assembly eliminates the need for on-site key-based installation, allowing utility personnel to simply snap the pre-assembled unit onto the meter box, thereby reducing installation time and eliminating security risks associated with key management
Solution Approach 2:
The key and key cylinder components are completely removed from the lock mechanism. The invention replaces the traditional key-based locking mechanism with a keyless pre-assembled structure that uses a simple snap-fit installation method, eliminating the security vulnerabilities and time consumption associated with key-based systems
2Ease of manufacture
If plunger style barrel locks are used, then preloading is possible, but design flexibility is limited and security can be easily compromised
Solution Approach 1:
The invention uses a disposable pre-assembled lock unit that is factory-loaded into a split ring. The entire lock assembly is designed as a single-use, pre-configured unit that is installed by snapping onto the meter box, eliminating the need for complex plunger mechanisms while maintaining ease of installation and improving design flexibility
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
The solution provides increased security and simplifies the installation process by eliminating the need for a key, as the lock can be preloaded into a utility meter box, offering a higher level of security and ease of use compared to existing plunger style locks.
Implementation Method 1
a means for biasing the stem to urge the locking balls outward
Data Source
AI summary
A lock assembly including a first lock portion having an open end which receives a key. The assembly further includes a second lock portion operatively connected to the first lock portion and a spring operatively attached to the first and second lock portions. Wherein one of the first and second lock portions is capable of biased rotational movement independent of the other of the first and second lock portions.