SU717265A1 - Coded locking device - Google Patents

Description

(54) CODE LOCKING DEVICE

one

The device is intended for use in systems of automatic security of rooms, safes and other objects.

A code locking device is known comprising a thyristor recalculation decade unit associated with an actuating means including thyristors and associated with a delay line, triggering means, a power supply unit and a blocking device on the thyristors 1.

The known device has a sufficiently large secrecy, but unreliable in operation,

The aim of the invention is to increase the reliability of the device with a reduction in high secrecy.

This is achieved by the fact that the blocking block has a relay with normally closed contacts, which are connected to the cathode circuit of the thyristor of the actuating means, and the relay coil of the blocking block is shunted by the thyristor of the blocking block.

The drawing shows a schematic diagram of a code locking device (for the sake of clarity, the circuit elements are combined into functional blocks).

The code locking device consists of a thyristor recalculation decade I, the code button switches are entered into the cathode circuits, and the non-code switches are placed under the interlock of the actuator 2, delay line 3, triggering means (time relay) 4, which is turned on by the first code button 1, block power supply 5, blocking unit on thyristors 6, solenoid 7 of actuating means, relay 8 of triggering means, blocking relay 9 with working contacts, 9 2, 9 3 and 9 4, blocking thyristor 10.

X

Code locking device operates as follows.

With the correct code set, the first button turns on the trigger 4 for the time needed to quickly and clearly dial the whole code. An opening pulse is successively transmitted on decade 1 to an additional means 2, opening its thyristor. In this case, the solenoid 7 pulls in the core, which is the locking bolt of the lock. When each subsequent buttons are pressed, the locking device 6 is turned on and simultaneously the lock opening thyristor 10 enters

pulse, and the thyristor shunts the winding of the blocking relay 9. After a certain time, due to the inertia of the blocking device 6, which can be selected in advance by selecting its capacitances, the device 6 returns to the initial state.

Delay line 3 prevents counting decade 1 from false pulses. When arbitrarily pressing the buttons, the locking device 6 is turned on. In this case, an opening pulse does not arrive at the blocking thyristor 10, as a result of which the blocking relay 9 is activated. By contacts 9 3, the trigger 4 is maintained in the on state for some more time required to determine the causes of the wrong set of code. Contact 4 can be clicked on; -Ш1ШГ63ШаНЬ1 to notify you of an incorrect dialing code. The entire circuit is powered either from a battery or from a network.

through a stabilizer rectifier power supply unit 5, operating autonomously.

In case of failure of the electronics by a special electric key, short-circuit certain circuits in the power supply of the solenoid 7, short-circuit, opening the lock bolt of the lock.

Claims (1)

Invention Formula A code locking device comprising a thyristor recalculation decade unit associated with an actuating means including thyristors and connected to a delay line, triggering means, a power supply unit and a blocking device on the thyristors, characterized in that, in order to increase the reliability of the device while maintaining a high degree the security block has a relay with normally closed contacts, which are included in the cathode circuit of the thyristor of the actuating means, and the winding of the relay of the block interlock is fixed by the thyristor of the block eye lock. Information sources, taken into account during the examination 1. USSR Copyright Certificate No. 528380, cl. E 02 B 49/02, published 1976.