Automatic Latch Locking Cover for Direct Burial Enclosures
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Solution Overview
Problem
Existing underground enclosure covers are time-consuming to secure and may be susceptible to tampering if not properly bolted, as they require manual tightening of threaded bolts, which can lead to insecure connections.
Innovation Solution
An enclosure cover assembly with a latch assembly that automatically locks onto the enclosure box, featuring a spring-biased latch mechanism with a tongue and latch stop, allowing for quick installation and secure locking, and a cover removal tool for easy unlocking and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If threaded bolts are used to secure the enclosure cover, then the connection strength is improved, but the installation time and operational complexity increase
Solution Approach 1:
The enclosure cover is divided into multiple sections with individual latch assemblies, allowing each section to be secured independently and simultaneously, reducing overall installation time while maintaining connection strength through distributed latching points
Solution Approach 2:
The latch assemblies are designed to automatically engage and lock when the cover is placed on the enclosure box, eliminating the need for manual bolt tightening and providing self-securing functionality that reduces installation time and operational complexity
2Reliability
If threaded bolts are used to secure the enclosure cover, then the connection reliability is improved, but the device complexity increases
Solution Approach 1:
The complex threaded bolt mechanism is extracted and replaced with simpler latch assemblies that provide equivalent or superior connection reliability through automatic engagement, reducing device complexity while maintaining security
Solution Approach 2:
The latch assemblies automatically engage and secure the cover without requiring manual intervention or complex tightening procedures, simplifying the overall device structure while ensuring reliable connection through self-actuating locking mechanisms
3Reliability
If manual bolt tightening is required, then the security against tampering is improved, but the ease of operation deteriorates
Solution Approach 1:
The latch assemblies automatically engage and lock when the cover is installed, providing security against tampering without requiring manual bolt tightening, thus dramatically improving ease of operation while maintaining security reliability
Solution Approach 2:
The latch assemblies are pre-positioned and spring-loaded to automatically engage with the enclosure box upon cover installation, providing immediate security without requiring subsequent manual tightening operations
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 automatic locking mechanism ensures secure and rapid enclosure cover installation and removal, enhancing security and reducing the risk of tampering by eliminating the need for manual bolt tightening.
Implementation Method 1
The spring is positioned on the spring stem and is provided to normally bias the latch assembly toward the locking position
Data Source
AI summary
Enclosure covers for use with direct burial enclosures are provided. The enclosure covers include a latch assembly that permits the enclosure cover to automatically lock to an enclosure box when installed.