Electromechanical Lock Self-Locking Lever Design
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Solution Overview
Problem
Conventional electromechanical locks require electrical pre-installation and are fragile, leading to damage and stock management challenges due to their design, especially in communal doors where many people pass, and they lack effective mechanisms to prevent forced opening.
Innovation Solution
A retractable, modular anti-panic lock with magnetic and mechanical self-locking features, including a closure latch system with a self-locking lever and permanent magnet, which prevents forced opening by utilizing a drive lever, guide rod, and additional devices for automatic and manual operation, allowing remote opening and key operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional electromechanical locks are installed in communal doors, then remote opening functionality is achieved, but the locks are fragile and prone to damage due to high traffic
Solution Approach 1:
The lock is divided into modular components: a strike plate fixed to the door frame, a housing fixed to the door, and separate mechanism elements housed within. This segmentation allows each component to be optimized for its specific function and replaces only the necessary parts when maintenance is needed, improving overall durability in high-traffic communal doors.
Solution Approach 2:
The patent replaces conventional fragile mechanical bolt locks with a closure latch system that uses a self-locking lever and permanent magnet for magnetic-mechanical self-locking. This substitution eliminates the fragility of traditional mechanical bolts while maintaining secure locking functionality, making the lock more reliable in doors with high passenger traffic.
2Ease of operation
If electric strike plates are used in side hung doors, then remote opening is enabled, but visible damage occurs when the frame profile is broken from the front
Solution Approach 1:
The invention introduces a closure latch as an intermediary element between the drive lever and the strike plate. The closure latch with self-locking lever provides the release mechanism for remote opening, while the permanent magnet ensures magnetic-mechanical self-locking. This intermediary system enables remote opening functionality without requiring damage to the door frame profile, as the release mechanism is integrated into the movable door assembly rather than the fixed frame.
3Ease of operation
If conventional mechanical bolt locks are used, then simple mechanical operation is achieved, but the locks are fragile and require frequent replacement in high-traffic areas
Solution Approach 1:
The lock combines magnetic and mechanical elements in a composite system. The permanent magnet provides magnetic attraction for self-locking, while the self-locking lever provides mechanical interlocking. This composite magnetic-mechanical system maintains the simplicity of mechanical operation while dramatically improving durability and reliability, eliminating the fragility of conventional all-mechanical bolt locks in high-traffic communal doors.
4Adaptability or versatility
If diverse opening options are provided for different door types, then versatility is improved, but stock management becomes complex
Solution Approach 1:
The lock is designed as a universal system that can be adapted to various door types (inward swinging, outward swinging, rotational, left or right sliding doors) through a single basic configuration. The modular design with strike plate and housing that can be positioned appropriately, combined with the versatile closure latch mechanism, allows one lock design to serve multiple door configurations, significantly simplifying stock management while maintaining adaptability to different door types.
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 lock effectively prevents forced opening and provides secure, reliable operation without visible damage, suitable for various door types, including European chamber doors, and reduces stock management needs by integrating magnetic and mechanical self-locking mechanisms.
Implementation Method 1
a permanent magnet (50) housed in an upper grooving (3a) of the closure latch (3), such that when the same is in an advanced position closing the door, the self-locking lever (44) is retained by the permanent magnet (50) upon which it is supported in a resting position
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Inside a housing (2) fixed to a door, a locking device determined by an independent self-locking lever (44) is located, which pivots on a fixed front shaft (45) located above a closure latch (3), the self-locking lever (44) having a first lower angular recess (46) and a second lower inverted V-shaped recess (47), opposite a copier shaft (48) integrally joined to the drive lever (5), the self-locking lever (44) furthermore being provided with an open channel (49) opposite a spool (14a) built into a guide shaft (14) located above the copier shaft (48). The closure latch (3) is locked into the door-closed position via the first lower angular recess (46) of the self-locking lever (44).