Claw-like Locking Assembly for Fiber Enclosure Prying Resistance
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Solution Overview
Problem
Existing security systems for above-ground fiber optic and cable network enclosures are inadequate in preventing door or cover plate prying open, despite the use of heavy-duty locks or latch systems.
Innovation Solution
A high-security locking assembly featuring a claw-like structure with a slide bar and locking pins, combined with a captive locking bolt, which engages axially spaced locking holes to provide enhanced resistance against prying attempts, constructed from high-strength metal components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heavy-duty door locks or latch systems are used, then security against basic break-in is improved, but the door or cover plate can still be pried open
Solution Approach 1:
The locking system is divided into multiple independent locking pins distributed across the enclosure perimeter, each engaging separately with the frame. This segmentation ensures that compromising one pin does not compromise the entire locking system, and the distributed pins prevent prying by engaging multiple points simultaneously.
Solution Approach 2:
Multiple locking functions are merged into a single integrated assembly that includes the slide bar, multiple locking pins, and reinforcement structure. This unified locking assembly moves as one unit, providing coordinated multi-point locking that prevents prying while maintaining operational simplicity.
2Ease of operation
If a single locking point is used, then the locking mechanism is simple to operate, but the enclosure can be pried open at other points
Solution Approach 1:
The locking system uses a dynamic slide bar that moves horizontally to engage or disengage all locking pins simultaneously. This dynamic mechanism maintains simplicity of operation (single sliding motion) while achieving multi-point locking, as all pins are controlled by one movable component that can be quickly positioned.
3Object-affected harmful factors
If multiple locking pins are distributed around the enclosure, then resistance to prying is improved, but the complexity of the locking assembly increases
Solution Approach 1:
The slide bar serves multiple functions simultaneously: it positions all locking pins, provides structural reinforcement across the enclosure front, and acts as the primary operating mechanism. This multi-functionality reduces overall assembly complexity despite the presence of multiple locking pins, as one component accomplishes several tasks.
4Ease of manufacture
If the locking assembly uses separate components, then manufacturing and assembly are easier, but the structure is more susceptible to bending and prying
Solution Approach 1:
The locking assembly combines multiple metal components (slide bar, locking pins, reinforcement structure) into an integrated rigid unit that functions as a composite structural system. While individual components can be manufactured separately, their combined configuration creates a unified structure with enhanced strength and rigidity that resists bending and prying forces.
Data Source
AI summary
A high security locking assembly for an above-ground communications network enclosure comprises a claw-like structure having, at one end, a slide bar with an end plate that carries a first set of locking pins, and a base plate, at the other end, having an end plate that carries a second set of locking pins. The slide bar travels axially in a guide channel below a rigid frame that holds a captive locking bolt positioned to engage one of a series of axially spaced locking holes on the slide bar. The locking pins face one another and are adapted for sliding into corresponding locking pin holes in the sides of enclosure. The claw-like structure is closed by sliding the slide bar into the guide channel, and positioning the pins in the locking pin holes, followed by locking the captive locking bolt in a selected one of the locking holes.