ELECTROMECHANICAL LOCK (OPTIONS) Russian patent published in 2018 - IPC E05B47/02 

FIELD: instrument engineering.

SUBSTANCE: electromechanical lock is designed to lock sliding doors to prevent unauthorized access. Lock has three versions: normally open, normally closed and trigger. Lock contains a body 1 installed in the opening 2 of the first door leaf 3. Locking pin 7 is located in the opening 6 of the body 1. At the end of the body 1, a casing 8 is installed, in the inner cavity of which a permanent magnet 10 is mounted on the end of the locking pin 7. Above the casing 8 is a support plate 11 with an axis 12 and with a hub 13 on the swivel plate 16, on the surface of which there are two permanent flat magnets 18, 19, transversely magnetized, with different poles to the surface of the swivel plate 16. When the swivel plate 16 is rotated and the stop pin 21 touches it, the first flat magnet 18 is positioned above the end surface of the casing 8, and when the swivel plate 16 of the stop pin 20 is touched, the second flat magnet 19 is positioned above the end surface of the casing 8. Rectangular shaped coil 22 is disposed on the supporting plate 11. Frontal parts 23, 24 of the coil 22 extend beyond the surfaces of the flat magnets 18, 19. Rotocoil spring 27 is disposed on the hub 13, one end of which is fixed to the supporting plate 11 and the second to the swivel plate 16. When the lock is normally closed, when the voltage is applied to the coil 22 in polarity, corresponding to the direction of the currents in the active parts 25, 26 of the coil 22, creating a force in interaction with the fields of the flat magnets 18, 19, directed toward the stop pin 21, the swivel plate 16 moves, overcoming the force of the spring 29, before contacting the stop pin 21. In this case, the flat magnet 18 is positioned over the frontal surface of the casing 8. Since the direction of the magnetic field of the flat magnet 18 is opposite to the direction of the field of the flat magnet 19, then when interacting with the field of the cylindrical magnet 10, attraction forces will arise and the locking pin 7 will exit the opening 28 of the second door leaf 5. Lock will be opened. When the lock is normally opened when the field of the flat magnet 19 interacts with the field of the cylindrical magnet 10, repulsive forces appears and the locking pin 7 will enter the opening 28 of the second door leaf 5. Lock will be closed. When the lock is triggered, the rotocoil spring 29 is absent and the extreme positions of the turntable 16 are held by the magnetic attraction forces of the magnets 18, 19 to the stop pins 20, 21.

EFFECT: exclusion of the possibility of unauthorized access.

1 cl, 2 dwg