METHOD FOR LOCKING AND UNLOCKING THE DOOR AND DEVICE FOR ITS IMPLEMENTATION (VERSIONS) Russian patent published in 2021 - IPC E05B17/20 

FIELD: construction.

SUBSTANCE: invention can be used to ensure the safety of people in the room. For locking and unlocking the door by interaction of the drive element of the lock with the mechanism for moving its bolt, moving the bolt out of the lock, interaction of the bolt with the striker plate of the door frame and blocking the door opening in order to prevent the door from being unlocked from its outer side after it is locked from the inside, the door is blocked with a removable blocker by fixing the drive element of the lock from the possibility of rotation relative to the lock cover Also proposed are devices for locking and unlocking the door.

EFFECT: increased security against illegal entry into a room closed from the inside, as well as a decrease in the laboriousness of mounting the locking block on the door.

16 cl, 27 dwg