Electromechanical Locking Device with Mechanical Resetting Mechanism
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Solution Overview
Problem
Conventional electromechanical locking devices require motor activation to maintain the blocking of the lock bolt element in a locked position, which can lead to operational inefficiencies and reduced safety when power is not available.
Innovation Solution
An electromechanical locking device with a manually operable displacement device and a resetting device that allows the lock bolt element to be moved into an open position, automatically resetting the blocking element to its blocking position, eliminating the need for continuous motor activation and enhancing operational safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If motor activation is used to maintain blocking of lock bolt element, then locking reliability is improved, but operational simplicity and safety without power deteriorate
Solution Approach 1:
The blocking element is moved into the blocking position in advance by the resetting device before power failure occurs. This preliminary action ensures that when power is lost, the blocking element is already in the safe blocking position, eliminating the need for continuous motor activation and ensuring operation simplicity without power.
Solution Approach 2:
The resetting device automatically resets the blocking element into the blocking position using the movement of the lock bolt element itself, without requiring external power or motor activation. This self-service mechanism ensures the blocking element is reliably positioned even when power is unavailable.
2Reliability
If continuous motor activation is used to maintain locked position, then security is improved, but energy consumption increases
Solution Approach 1:
Instead of continuous motor activation, the motor unit only periodically activates to move the blocking element when needed (during normal locking operations). The resetting device then maintains the blocking position mechanically without power, eliminating continuous energy consumption while maintaining security.
Solution Approach 2:
The resetting device uses the kinetic energy from moving the lock bolt element into the open position to automatically reset the blocking element into the blocking position. This self-service mechanism eliminates the need for continuous motor activation and associated energy consumption while maintaining security.
3Measurement precision
If blocking element requires motor activation to maintain position, then control precision is improved, but operational safety without power deteriorates
Solution Approach 1:
The blocking element is preliminarily positioned into the blocking position by the resetting device before power failure occurs. This ensures that when power is lost, the blocking element is already in the precisely controlled blocking position, maintaining operational safety without power.
Solution Approach 2:
The resetting device acts as an intermediary mechanism that transfers the movement of the lock bolt element into the precise positioning of the blocking element. This mechanical intermediary ensures control precision is maintained even when power is unavailable, as it uses pure mechanical interaction rather than motor control.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The locking device (1) has a blocking device (25) which is displaceable in the unlock position (38) of locking element (35) such that the locking bolt element (9) by actuation of manually actuable displacement element (8) is displaceable in open position (10), and the locking device is opened. A resetting device displaces the locking bolt element in the open position and returns the locking element in the locking position. The resetting device has a close-bolt element side return element which is interacted directly with actuating surface of the locking element. An independent claim is included for method for actuating lock unit.