PERMUTABLE LOCK Russian patent published in 2020 - IPC E05B37/08 

FIELD: locks.

SUBSTANCE: invention relates to devices of interlocking locks with reversible disks located on one axis and installed simultaneously with a rotary but not movable handle. Replacement lock comprises a housing with a hollow axis on which rotary disks are arranged, on the side surface of which there are projections interacting with each other and with a drive cam fixed on the drive shaft, which is arranged in a hollow axis, wherein the shaft opposite end comprises a limb handle, and drive cam includes on end surface of recess and is made interacting with spring-loaded hook-shaped lever, opposite end of which is fixed, with possibility of rotation, on crossbar. Lock design incorporates two-channel light relay with electromagnet interacting with hook-shaped lever, wherein drive cam interacts with optical axis of first channel, and hook-shaped lever is made with light relay interacting with optical axis of second channel.

EFFECT: advantage of invention consists in the fact that possibility of unauthorized opening of lock by manipulation is excluded.

4 cl, 7 dwg