Electromechanical lock utilizing magnetic field forces. An actuator is moved (1202) from a locked position (260) to an open position (400) by electric power. In the locked position (260), a permanent magnet arrangement directs (1204) a near magnetic field to block an access control mechanism to rotate, and simultaneously the permanent magnet arrangement attenuates (1206) the near magnetic field towards a far magnetic break-in field originating from outside of the electromechanical lock. In the open position (400), the permanent magnet arrangement directs (1208) a reversed near magnetic field to release the access control mechanism to rotate, and simultaneously the permanent magnet arrangement attenuates (1210) the reversed near magnetic field towards the far magnetic break-in field.

Provided are a lock cylinder and an unlocking key. The lock cylinder includes: a lock housing; a lock core, herein the lock core is rotatably arranged in the lock housing; a locking member, herein the locking member is movably arranged between the lock core and the lock housing and provided with a locking position and an unlocking position; a locking blade, herein the locking blade is movably connected to the lock core and capable of stopping or avoiding the movement of the locking member so as to lock or unlock the locking member; a driving assembly, herein at least part of the driving assembly is movably arranged relative to the locking member, and the driving assembly is capable of stopping or avoiding the movement of the locking member so as to lock or unlock the locking member.

An intelligent unlocking device comprises a rear shell, a front shell, a motor assembly, a hollow rotating shaft, an adapting piece connected with a lock cylinder and the hollow rotating shaft, a manual rotating shaft, an inner bearing and a bearing support which are disposed around the manual rotating shaft, and an outer bearing. The bearing support and the outer bearing are disposed around an end of the manual rotating shaft. The intelligent unlocking device is silent and free of noises in use, and convenient to assemble and disassemble, intelligent unlocking can be achieved without replacement of a whole door lock, and costs are reduced for users.

An intelligent unlocking device comprises a rear shell, a front shell, a motor assembly, a hollow rotating shaft, an adapting piece connected with a lock cylinder and the hollow rotating shaft, a manual rotating shaft, an inner bearing and a bearing support which are disposed around the manual rotating shaft, and an outer bearing. The bearing support and the outer bearing are disposed around an end of the manual rotating shaft. The intelligent unlocking device is silent and free of noises in use, and convenient to assemble and disassemble, intelligent unlocking can be achieved without replacement of a whole door lock, and costs are reduced for users.

Electromechanical lock. Actuator (103) comprises drive head (109) rotatable by electric power (160). Access control mechanism (104) comprises driven gear (101) with cogs, and grip mechanism (111). Drive head (109) comprises two pins (210, 212) configured and positioned so that one of pins (210, 212) is in notch between two cogs (220, 222, 224, 226, 228) of driven gear (101). For opening, drive head (109) rotates driven gear (101) to open position (400), by two pins (210, 212) driving cogs (220, 222, 224, 226, 228) and overcoming grip mechanism (111), and thereby setting access control mechanism (104) to be rotatable (152) by user. If external mechanical break-in force (172) is applied, drive head (109) remains stationary by at least one of pins (210, 212) contacting at least one of cogs (220, 222, 224), and by grip mechanism (111) holding driven gear (101) stationary in locked position (200).

Described herein is a lock actuation assembly for actuating a state change of a lock of a door via a lock actuator extending from a panel of the door, comprising: a motor for driving the actuation; a body having a mounting portion for attaching the lock actuation assembly to the door; a coupler held by the body for coupling a force from the motor to the lock actuator to change the lock's state; a wireless communication module for receiving in, an electromagnetic signal, a first command for changing the state of the lock; a turnable piece on the body for generating a second command for changing the state of the lock; and a controller adapted to control the motor to change the state of the lock based on either one of the first command or the second command.

A modularized electric latch control device includes a mounting seat and a locking cap device pivotably mounted to the mounting seat and pivotable relative to the mounting seat between a closure position and a non-closure position. Optionally mounted to the electric latch control device are a stopper, a closure member, a locking latch restraining frame, a first escutcheon, and a second escutcheon. The electric latch control device is selectively assembled into a first mode (including the first escutcheon), a second mode (including the closure member, the stopper, and the second escutcheon), or a third mode (including the locking latch restraining frame, the stopper, and the second escutcheon) for cooperating with a cylindrical latch device, a first box type latch device, or a second box type latch device.

This disclosure provides systems and methods for lockout-tagout procedures and systems supporting the same, including, without limitation, locking devices that can store and be locked simultaneously by multiple keyholders. In various embodiments, a single user can add multiple keyholders to a locking device. The user may not be able to remove anyone as a keyholder except himself or herself. Thus, the locking device may remain in a locked state until each of the added keyholders applies their digital key, password, PIN, and/or other personal identifying information to unlock the locking device by removing themselves as a keyholder.

Various embodiments that pertain to signal based arrangement of pin tumbler pins are described. A receiver can receive and process a signal. The signal can indicate an arrangement for the pins of the pin tumblers. With a proper signal, the pins can be placed so that the pin tumbler unlocks. Security measures can be put into place to make sure the signal is a valid signal, such as through employment of a hash function set (e.g., two hash functions).

An electronic rim cylinder door or cabinet door and drawer lock utilizes third party electronic rim cylinders to drive a dead bolt or latch bolt cabinet door or drawer lock. The lock portion is in kit form and may be adapted to a variety of third party electronic rim cylinders.