Removable Double Door Security Barrier
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Solution Overview
Problem
Existing security devices for double doors and windows are limited by their size and effectiveness, often requiring large and cumbersome braces that are only suitable for inward-opening doors, and lack a solution for quickly disabling doors in emergency situations or providing enhanced security beyond locking mechanisms.
Innovation Solution
A removable security device comprising a pair of barriers and a connecting portion that can be installed on either side of double door or window assemblies, preventing movement by aligning the barriers on both sides of the leafs, with optional locking mechanisms and adjustable spacers to fit various door thicknesses, allowing for secure operation regardless of door direction and without needing to brace against the floor or wall.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional braces are used to secure double doors, then door security is improved, but the device becomes very large and unwieldly
Solution Approach 1:
The security device is divided into separate components: a first barrier for the first door leaf, a second barrier for the second door leaf, and a connecting portion that links them. This segmentation allows each component to be smaller and more manageable while collectively providing comprehensive security across the entire double door assembly.
Solution Approach 2:
The invention transitions from traditional two-dimensional bracing (against the door frame) to a three-dimensional configuration where barriers are positioned on opposing sides of the door leaves and connected through the door assembly, creating a spatial security structure that spans multiple dimensions and provides more effective restraint.
2Reliability
If traditional locking mechanisms are used, then door security is improved, but the security is vulnerable to breaking or picking
Solution Approach 1:
The invention replaces the traditional mechanical locking system (locks and handles) with a physical barrier system that prevents door movement through direct mechanical obstruction. The barriers and connecting portion create a rigid structure that must be physically removed or broken to open the doors, eliminating vulnerabilities to lock picking or manipulation.
3Reliability
If security devices are designed for inward-opening doors, then door security is improved, but the device cannot be used on outward-opening or double-hinged doors
Solution Approach 1:
The security device is designed with universal applicability through symmetric barrier placement on opposing sides of the door leaves and a connecting portion that can accommodate various door configurations. The same basic structure effectively secures inward-opening doors, outward-opening doors, and double-hinged doors, making it a multi-functional solution for different door types.
4Reliability
If braces engage the door frame, then door security is improved, but the device becomes very large and unwieldly
Solution Approach 1:
The security device is divided into separate components: a first barrier for the first door leaf, a second barrier for the second door leaf, and a connecting portion that links them. This segmentation allows each component to be smaller and more manageable while collectively providing comprehensive security across the entire double door assembly.
Data Source
AI summary
A security device for a double door or double window arrangement, the device comprising a first and second barrier positioned on opposite sides of the double doors or windows. The device has a connecting portion connecting the first and second barriers. The barriers are held in position relative to the double doors or windows to prevent opening of the doors or windows, thus providing a quick way to lock down or disable a doorway or window.