Door Barricade with Pivoting Locking Arm and Floor Anchor
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Solution Overview
Problem
Existing door barricade solutions are ineffective as they can be easily compromised by intruders, often require external access to locking mechanisms, and may not securely attach to doors without handles or be tampered with from the outside.
Innovation Solution
A door barricade system that mounts between the interior door face and adjacent floor, featuring a rotating and locking vertical bolt mechanism with restrictor plates and a locking arm that secures into a floor receiver hole, preventing external tampering without specialized tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a door barricade uses a removable pin or key mechanism, then it can be easily installed and removed, but the pin or key can be lost or stolen rendering the device useless
Solution Approach 1:
The invention extracts the removable pin/key mechanism from the system entirely. The barricade uses a permanent fixed anchor in the floor and a fixed mounting plate on the door, eliminating the need for removable components that can be lost or stolen. The locking mechanism relies on a fixed structural connection rather than removable fasteners.
Solution Approach 2:
The barricade is segmented into fixed components (floor anchor, door mounting plate, vertical bolt assembly) that work together as an integrated system. Each component has a specific fixed function, and the segmentation allows the system to achieve security through permanent installation rather than removable parts.
2Ease of manufacture
If a door barricade attaches to the door jamb, then it can be installed without floor modification, but the door can still be easily kicked in breaking the door jamb
Solution Approach 1:
The invention moves the primary anchoring point from the vertical door jamb to the horizontal floor plane. By anchoring in the floor (a different dimensional plane), the barricade creates a stable base that resists kicking forces much better than door jamb attachment. The vertical bolt then connects this floor anchor to the door, creating a triangulated structural system.
Solution Approach 2:
The floor anchor is installed beforehand in a secure location, and the door mounting plate is pre-attached to the door. This preliminary installation of fixed components allows the barricade to be assembled quickly when needed while ensuring maximum structural strength from the outset.
3Reliability
If a door barricade requires external access to locking mechanisms, then it can provide secure locking, but occupants cannot use it from inside the room during an emergency
Solution Approach 1:
The invention inverts the traditional locking mechanism arrangement. Instead of having the locking mechanism on the outside of the door requiring external access, the entire operation is performed from inside the room. The vertical bolt is manipulated from the interior, and the locking foot engages with the floor anchor from inside the room, allowing occupants to secure the door without exiting into the hallway.
Solution Approach 2:
The barricade is designed to be self-operating from the inside. The vertical bolt can be rotated and positioned by the occupant themselves, and the locking mechanism engages automatically when the bolt is in the down position. No external assistance or key access is required - the system serves itself through simple internal manipulation.
4Reliability
If a door barricade uses a fixed vertical bolt mechanism, then it prevents external tampering, but it cannot be quickly deployed without specialized tools
Solution Approach 1:
The vertical bolt is designed to be dynamically adjustable rather than fixed in position. It can be rotated between an up position (deployed) and a down position (retracted), allowing quick deployment and removal. The restrictor plates provide fixed guidance and limitation of movement, while the bolt itself remains dynamic and movable, enabling rapid response without specialized tools.
Solution Approach 2:
The mounting plates and floor anchor are installed in advance during normal facility setup. When an emergency occurs, the barricade is already in place and requires only the simple action of rotating the vertical bolt to engage or disengage. This preliminary installation eliminates the need for tools or complex assembly during the critical emergency response time.
Data Source
AI summary
The present invention is a door barricade having a pivoting locking arm which drops into a floor hole to lock a barricade in place.