Electromagnetic Door Locking with Counterweight Vibration Resistance
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Solution Overview
Problem
Existing electromagnetic door locking mechanisms are not sufficiently vibration-resistant and shock-resistant, leading to potential malfunction during mechanical impacts or vibrations.
Innovation Solution
A door locking device with a plunger movable in an energizable coil, coupled to a pre-tensioned weight via a rocker arm, ensures vibration resistance by equalizing acceleration forces on the plunger and weight, using a spring device to maintain the locked position, and incorporating a locking monitoring sensor for status verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional electromagnetic door lock is used, then the locking mechanism is simple, but it is not sufficiently vibration-resistant and shock-resistant
Solution Approach 1:
The patent applies a counterweight (Gewichtskörper) connected to the plunger via a rocker arm that creates a balancing force against gravitational and vibrational forces. The counterweight system compensates for acceleration forces during vibrations and shocks, maintaining reliable locking engagement without requiring complex additional stabilization mechanisms.
Solution Approach 2:
The patent introduces a dynamic balancing system where the counterweight and spring device work together to continuously adjust and balance forces acting on the plunger. This dynamic system adapts to varying vibration and shock conditions, maintaining locking reliability through continuous force equilibrium rather than static design.
2Reliability
If a pre-tensioned weight is used to improve vibration resistance, then the locking device becomes more reliable, but the device complexity increases
Solution Approach 1:
The counterweight (Gewichtskörper) is used to balance gravitational and vibrational forces acting on the plunger, providing continuous compensation for external disturbances. This single counterweight component, working with the rocker arm mechanism, delivers substantial vibration resistance without requiring multiple complex stabilization systems.
Solution Approach 2:
The patent combines the counterweight, spring device, and rocker arm into an integrated force-balancing system. These components work together as a unified mechanism to achieve vibration resistance, reducing the need for separate stabilization systems and minimizing overall mechanical complexity while maximizing reliability.
3Ease of operation
If the plunger is made linearly movable in the coil, then the control is simplified, but the vibration resistance is reduced
Solution Approach 1:
The counterweight system compensates for vibrational and shock forces acting on the linearly movable plunger, maintaining reliable locking engagement despite the simple linear motion design. The counterweight creates balancing forces that counteract external disturbances, allowing the plunger to maintain stable linear movement without complex vibration compensation mechanisms.
Solution Approach 2:
The dynamic force-balancing system with counterweight and spring device continuously adapts to vibrational conditions, maintaining stable linear plunger movement. This dynamic compensation allows the simple linear control mechanism to remain both easy to operate and resistant to vibrations through continuous force equilibrium adjustment.
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 solution provides a mechanically simple, reliable, and vibration-resistant locking mechanism that maintains the locked state under mechanical impacts or vibrations, with easy control and monitoring capabilities.
Implementation Method 1
the coil (18) is or is moved linearly between a closed position and an open position
Implementation Method 2
the weight body is or is subjected to a force directed in the direction of the rocker by means of a, in particular pre-tensioned, spring device
Data Source
Figure 1a~1b
Figure 2~3
AI summary
The invention relates to a door locking device (10), in particular an electromagnetic door locking device (10), for a door with a plunger (14) arranged linearly movable in an energizable or energized coil (18) for a locking element, in particular a locking bolt (12), of the door, wherein the plunger (14) is or is moved linearly between a closed position and an open position, wherein the plunger (14) is coupled at one end side by means of a rotatably mounted rocker (15) to a, preferably rigid, weight body (16), wherein the weight body (16) is linearly movable, wherein in the closed position of the plunger (14) the weight body (16) is or is subjected to a force directed in the direction of the rocker (15) by means of a, in particular pre-tensioned, spring device (17).