Telescoping Door Lock Assembly for Adjustable Entry Blocking
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Solution Overview
Problem
Existing door locks do not effectively prevent illicit passage through doors, particularly in environments where theft or damage is a concern, such as construction sites.
Innovation Solution
An extendable door lock assembly comprising a first shaft that telescopes into a second shaft with a constriction, a lock mechanism housed in a barrel lock or spring-loaded combination lock, and mounting brackets for secure attachment to a door jamb, allowing for enhanced security and versatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional fixed door lock is used, then the structure is simple, but it cannot effectively prevent illicit passage through doors in high-risk environments
Solution Approach 1:
The door lock bar is divided into multiple segments (first shaft and second shaft with first and second segments) that can telescope relative to each other. This segmentation allows the lock to extend to different lengths based on security requirements while maintaining a compact form when retracted, thereby improving security effectiveness without excessive structural complexity.
Solution Approach 2:
The first shaft is capable of telescoping into and out of the first segment of the second shaft, creating a nested configuration. This nesting principle allows the lock mechanism to achieve variable extension lengths within a compact structure, enhancing security adaptability while controlling device complexity.
2Adaptability or versatility
If an extendable telescoping lock mechanism is implemented, then adaptability to different door configurations is improved, but the device complexity increases
Solution Approach 1:
The lock mechanism incorporates dynamic telescoping shafts that can extend and retract based on operational requirements. The first shaft telescopes into the first segment of the second shaft, allowing the lock to adapt its length for different door configurations and application scenarios, thereby improving versatility while managing complexity through controlled movement mechanisms.
Solution Approach 2:
The telescoping lock mechanism with multiple shaft segments and locking positions provides multi-functionality, accommodating various door types and security requirements. The ability to extend to different lengths and lock at multiple positions makes the device universally applicable across diverse scenarios without requiring multiple specialized locks.
3Reliability
If multiple locking positions are provided through shaft holes alignment, then the locking reliability is improved, but the ease of operation decreases
Solution Approach 1:
The lock mechanism appears to utilize self-aligning features where the shaft holes automatically align when the telescoping shafts are positioned correctly. This self-service mechanism reduces the operational complexity for the user, as the system self-regulates to achieve proper alignment and locking without requiring precise manual positioning, thereby maintaining ease of operation while improving locking reliability.
Data Source
AI summary
An extendable door lock to be applied across the exterior of a door that opens outwards to help prevent illicit passage through the door thereby helping to prevent theft or damage to contents in a room or facility located behind the door. In addition, the extendable door lock can be applied to the interior of a door that happens to open inwards; such use can stop someone illicitly entering an office or other space where, for example, there is someone working late and alone who desires a lock to prevent someone entering the office. In one non-limiting embodiment, an extendable door lock is provided comprising: a first shaft, a second shaft, a first mounting bracket, a second mounting bracket, and a lock mechanism. In one non-limiting embodiment an extendable door lock sub-assembly is provided comprising: a first shaft, a second shaft, and a lock mechanism.