Wedge Locking Door Assembly for Forced-Entry Security and Sealing
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Solution Overview
Problem
Traditional door entry systems have a single or dual point of locking connection, making them susceptible to forced entry, and seals between the door panel and frame are often ineffective in preventing the transfer of environmental elements and insects.
Innovation Solution
A door lock assembly with a movable locking element that locks and seals the door to the frame, featuring a drive assembly and latch assembly that operate independently, incorporating wedge-shaped locking elements and resilient members to enhance security and sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional single or dual point locking mechanisms are used, then the device complexity is low, but the security against forced entry is insufficient
Solution Approach 1:
The locking system is divided into multiple independent locking points (first locking point with first locking element, second locking point with second locking element) distributed at different locations on the door panel. Each locking point can engage with the frame independently, creating multiple barriers that must be overcome simultaneously for forced entry, thereby enhancing security without requiring a single complex mechanism
Solution Approach 2:
The locking elements extend in the vertical dimension along the door panel edge, with locking points positioned at different heights. This vertical distribution creates a multi-dimensional locking barrier that prevents forced entry by requiring deformation or displacement at multiple spatial locations simultaneously, rather than concentrating all locking function at a single point
2Object-affected harmful factors
If separate weather stripping is added to provide sealing, then the sealing capability improves, but the device complexity and potential for seal disjunction increases
Solution Approach 1:
The sealing function is merged with the locking elements themselves. The locking elements are designed with integrated sealing surfaces that engage with corresponding surfaces on the frame to create fluid-tight seals. This integration eliminates the need for separate weather stripping components, reducing overall system complexity while maintaining effective sealing against environmental elements
Solution Approach 2:
The locking elements serve dual functions: providing mechanical locking engagement to secure the door, and creating sealing interfaces to prevent transfer of environmental elements. This multi-functionality reduces the total number of components needed in the system, as the same structural elements perform both security and sealing roles
3Reliability
If multiple locking points are implemented, then the security against forced entry improves, but the manufacturing complexity increases
Solution Approach 1:
Each locking point is designed with locally optimized features specific to its position and function. The locking elements have varying geometries and sealing surface configurations tailored to their specific engagement requirements with the frame, allowing each component to be manufactured independently with standard techniques while contributing to the overall multi-point security system
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 assembly provides enhanced security by preventing forced entry and effective sealing against environmental elements and noise, while allowing for independent operation of locking and sealing functions.
Implementation Method 1
a resilient member biased the movable locking element toward the locked position
Implementation Method 2
incorporating wedge-shaped locking elements and resilient members to enhance security and sealing
Data Source
AI summary
A door lock assembly for use with a door comprising a movable locking assembly disposed within a recess formed in an edge of a door panel having one or more movable wedge shaped locking elements disposable between a locked position and an unlocked position and having first teeth associated therewith, and a frame member having a channel and second teeth associated therewith, wherein when assembled the locking element is disposed substantially within the channel formed in the frame element when disposed in the locked position, and wherein one or more the first teeth of the locking element are adapted to selectively engage with one or more of the second teeth when a force is applied to the door.