Spring-Cushioned Locking Bolt for Impact-Resistant Door Locks
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Solution Overview
Problem
Existing door locking devices in prisons are susceptible to damage from blunt force objects and debris, leading to operational failure and security risks.
Innovation Solution
A locking device with a locking bolt retained within a carriage, connected by extension springs to absorb impact and a debris scraper to clear obstructions, constructed from durable materials like steel, and actuated by a carriage mechanism to withstand and recover from such forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a typical door locking device is used, then it can perform basic locking function, but it is susceptible to damage from blunt force objects and debris
Solution Approach 1:
The patent applies beforehand cushioning by incorporating a compressible material between the locking bolt and the strike plate. This cushioning element is pre-installed to absorb and dissipate the energy of blunt force impacts before they can damage the locking bolt or strike plate, thereby resolving the contradiction between maintaining basic locking function and resisting impact damage.
2Reliability
If a typical door locking device is used, then it can perform basic locking function, but debris can jam the locking bolt
Solution Approach 1:
The patent applies the taking out principle by removing the vulnerability to debris interference through design modifications. The locking bolt is designed with a smooth surface finish and proper clearances that prevent debris from adhering to or jamming the bolt, effectively extracting the harmful effect of debris from the system while maintaining the basic locking function.
3Strength
If the locking bolt is made more durable to withstand impact, then resistance to blunt force improves, but the device complexity increases
Solution Approach 1:
The patent applies composite materials by using a locking bolt constructed from high-strength, impact-resistant materials such as hardened steel or other durable alloys. This material selection provides the necessary impact resistance without requiring additional structural complexity, as the material properties themselves provide the strength needed to withstand blunt force while maintaining a simple locking mechanism design.
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 device effectively withstands blunt force impacts and prevents jamming, maintaining operational integrity and security by absorbing impacts through extension springs and clearing debris, ensuring reliable locking functionality.
Implementation Method 1
the first and second extension springs can be constructed and arranged to absorb any impact applied to the locking bolt
Data Source
AI summary
A locking device can include a lock housing; a first carriage attached to a first guided member and a second guided member; a locking bolt having a first portion that is slidably retained within the first carriage; a first extension spring connecting an upper portion of the first carriage to an upper portion of the locking bolt; a second extension spring connecting a lower portion of the first carriage to a lower portion of the locking bolt; wherein: the carriage can be actuated to move from at least a first position to a second position within the lock housing, the carriage can be be actuated to move from at least the second position to the first position within the lock housing. The first and second extension springs can be constructed and arranged to absorb any impact applied to the locking bolt.