Portable Door Barricade with Pivoting Bracket and Unidirectional Shaft
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Solution Overview
Problem
Existing door security systems are inadequate in resisting forced entry, particularly in emergency situations, as they lack portability, rapid deployability, and sufficient resistance, and often require costly upgrades or cumbersome installation processes.
Innovation Solution
A portable door barricade apparatus with a housing, shaft, and door bracket that can be quickly deployed to prevent door opening by pivoting the door bracket between the door and frame, featuring a unidirectional mechanism that can be released in emergencies, allowing bidirectional motion for egress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If existing door security systems are used, then door protection is provided, but resistance to forced entry is insufficient
Solution Approach 1:
The door barricade apparatus employs a dynamic shaft that can pivot between a first position (secured to door frame) and a second position (released). The shaft transitions from a fixed securing state to a movable released state, allowing the system to adapt between providing strong resistance to forced entry and enabling rapid egress when needed.
Solution Approach 2:
The door bracket is divided into separate components: a door bracket body, a releasably engaged component, and a shaft portion. This segmentation allows the engaged component to be selectively positioned and secured to either the door frame or the shaft, enabling modular configuration that enhances both security strength and operational flexibility.
2Ease of operation
If portable door barricade apparatus is deployed, then rapid deployability is achieved, but structural complexity increases
Solution Approach 1:
The unidirectional mechanism allows the shaft to move freely in one direction (toward the second position for release) but is constrained in the opposite direction. This dynamic constraint system provides automatic engagement and disengagement capabilities, enabling rapid deployment and egress without requiring complex control systems or multiple locking mechanisms.
3Adaptability or versatility
If unidirectional mechanism is used, then egress capability is enabled, but control precision is reduced
Solution Approach 1:
The releasably engaged component acts as an intermediary between the door bracket body and the shaft. It can be selectively engaged with either the door frame or the shaft, serving as a mediator that enables the shaft to be positioned in two different states (secured to frame or released) without requiring complex control mechanisms, thus achieving bidirectional functionality with simpler precision requirements.
Data Source
AI summary
A door barricade apparatus includes a body portion having a pushing face, a port, an advancing interface, and a release interface. The apparatus further includes a shaft portion having a shaft and a door bracket. The door bracket has a throat terminating in at least an l-shaped configuration. The door bracket is pivotably coupled to the shaft at a first end and the shaft is disposed within the port.