Multi-hook Locking Device for Building Openings
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Solution Overview
Problem
Existing locking devices for constructions have limited mechanical strength and security due to reduced contact surface with the striker, making them vulnerable to break-ins, and are unable to guarantee high security levels against burglary attempts.
Innovation Solution
A locking device with at least two hooking means that can adopt an active hooking position with the locking striker, featuring movement drive means to drive these hooking means in opposition, reinforcing means to enhance attachment in the active position, and fixing means to strengthen the connection between the locking system and the frame or opening, thereby increasing mechanical strength and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a single locking element (roller or hook) is used, then the device complexity is low, but the mechanical strength and security against forced entry are limited due to small contact surface
Solution Approach 1:
The locking system is divided into multiple independent latching means (at least two), each capable of engaging with the strike plate separately. This segmentation allows the system to distribute mechanical stress across multiple contact points, thereby increasing overall mechanical strength while maintaining manageable complexity through modular design
Solution Approach 2:
Multiple latching means are combined within a single locking system that operates through one locking rod. The latching means work together to provide enhanced security, merging their individual engagement forces to create a more robust locking mechanism that resists forced entry better than a single element could
2Reliability
If a single locking element is used, then the ease of operation is high, but the reliability against forced entry is low
Solution Approach 1:
The locking system is divided into multiple independent latching means (at least two), each capable of engaging with the strike plate separately. This segmentation allows the system to distribute mechanical stress across multiple contact points, thereby increasing overall mechanical strength while maintaining manageable complexity through modular design
Solution Approach 2:
The latching means are designed to be movable relative to the housing, transitioning between inactive and active positions. This dynamic capability allows the system to respond to forcing attempts by maintaining engagement, with at least one latching means designed to resist movement under stress, thereby enhancing reliability
3Strength
If multiple latching means are used, then the mechanical strength is improved, but the driving mechanism complexity increases
Solution Approach 1:
Multiple latching means are combined within a single locking system that operates through one locking rod. The latching means work together to provide enhanced security, merging their individual engagement forces to create a more robust locking mechanism that resists forced entry better than a single element could
Solution Approach 2:
The driving mechanism incorporates both primary means for driving the translation and secondary means for driving the movement. This multi-dimensional approach to actuation allows independent control of each latching means' engagement force and direction, managing the complexity of multiple actuators through structured spatial organization
Data Source
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AI summary
Locking device (1) for a closing installation (I) of an opening in a building.This locking device (1) includes a locking strike plate (2) and a locking system (3) which includes a housing, at least one locking rod (5) movable relative to the housing, at least two hooking means (6; 6') movable relative to the housing and adopting an inactive position and an active hooking position of said at least two hooking means (6; 6') with the locking strike plate (2) and an active position, means for mounting in movement of said at least two hooking means (6; 6') relative to the housing between the inactive position and the active hooking position and means for driving in movement of said at least two hooking means (6; 6') in the direction of the inactive hooking position or in the direction of the active hooking position, this under the impulse of the movement of the locking rod (5).