NON-VOLATILE ELECTROMECHANICAL LOCK Russian patent published in 2023 - IPC E05B47/06 

FIELD: locking systems.

SUBSTANCE: invention relates to electromechanical locks, more specifically to combination locks with an electronic coding method. A non-volatile electromechanical lock contains rotary sleeve (5) installed in case (1), equipped with a cam and hole (7), into which shaft (4) is inserted, in an inner cavity of which code identification device (13) is placed, supplying, if the code matches, electrical voltage to electromagnet (10) equipped with anchor (11), which interacts with walls of groove (3) of rotary sleeve (5). Case (1) is equipped with additional case (15) connected to it, having cylindrical hole (16) made coaxially to shaft (4) and providing its unhindered rotation. From an outer side of additional case (15), hole (17) of a smaller size is made. The difference of these sizes forms stopper (18) for shaft (4) spring-loaded with spring (6). Socket (12) and hole (17) on the outer side of additional case (15) together form a keyhole for key (20), which has a configuration allowing for easily entering socket (12), as well as has one or more protrusions (19) interacting with stopper (18) during rotation of key (20), fixing it in socket (12). A length of protrusions (19) is selected such that it creates the need for preliminary pressing on key (20) before its rotation. Isolated contact pin (2) of key (20) rests against isolated contact pin (9) spring-loaded with spring (6) together with shaft (4).

EFFECT: increase in the reliability of operation of a lock and expansion of the range of its operational temperatures due to placement of power supply elements inside a key case and reliable electrical connection between a key and a code identification device.

6 cl, 12 dwg