The present application provides an electric lock device, adopting a clutch mechanism composed of a driven gear and a turntable. The first side of the driven gear is provided with a mounting position for the turntable to be embedded, the sidewall of the mounting position is provided with an arc-shaped recess, and the outer sidewall of the turntable is provided with an arc-shaped bump corresponding to the arc-shaped recess. The central angle corresponding to the arc-shaped recess is denoted as α, and the central angle corresponding to the arc-shaped bump is denoted as β, then α and β satisfy: α−β≥180°. Based on the above structure, there is a rotation virtual position greater than or equal to 180° between the driven gear and the turntable, that is, the gear can be rotated at least 180° regardless of the angle to which the gear rotates the turntable.

An exit device according to one embodiment includes a plurality of sensors and an electronic dogging mechanism. The exit device is configured to locally analyze sensor data to determine the security state of the exit device, report data to a management system via a wireless communication channel established between the exit device and the management system, and receive and process instructions to perform an electronic dogging operation.

A multi-point latching device may include a mortise lock and one or more remote latches which are operable with a handle. The mortise lock may include a handle lock which selectively locks and unlocks the handle is independently controllable by an actuator and by a lock cylinder. The lock cylinder may be used to unlock the handle during power failure events where the mortise lock is put into a fail secure state, such that the mortise lock maintains normal functionality as a manual device.

Disclosed is a lock plug with an electric motor. The electric motor is mounted at an end of the lock plug body, the lock plug body includes a lock plug core, a surface of an electric motor reducer is provided with an electric motor conductive contact sleeve, a position, corresponding to an electric motor output shaft, of the centre of the lock plug core is provided with a semicircular hole groove consistent with the electric motor output shaft in shape and size, the lock plug core is provided with a set screw hole, a position, corresponding to the set screw hole, of the electric motor output shaft is provided with a set screw groove, and an overall dimension of the electric motor is smaller than that of a lock plug hole groove of a door.

Provided are a motor driving circuit, a control method therefor, and a driving chip. The motor driving circuit includes a logic module and a push-pull module, a channel selection module, an instruction recognition module, and an isolating switch module. An input signal is outputted by the logic module and the push-pull module to control the motor. The channel selection module is configured to select a channel for the input signal to make the input signal to be connected to the isolating switch module or the instruction recognition module, or disconnected. The instruction recognition module is configured to perform a corresponding operation on the isolating switch module according to an inputted instruction. The isolating switch module is configured to receive an instruction of the channel selection module and an instruction of the instruction recognition module to connect or disconnect the logic module.

The invention relates to an electronic device (1) configured for opening/closing a door (P) or similar, from a light signal defining an opening and/or closing code emitted by a movable transmitter having means for emitting said light signal, said electronic device having an electric lock comprising: a lock cylinder (2) with a stator (20) and a rotor (21), as well as an electric actuator (3) configure to modify the state of the electric lock, means for receiving signals configured to detect light pulses comprising a receiving diode (4), a control unit (5) connected to the receiving diode (4) and connected to the electric actuator (3), configured to decode the light pulses detected by said receiving means and to determine a control of the electric actuator (3).

According to the invention, the diode (4) is advantageously protected and all of the means (3, 4, 5) are self-supporting with the lock cylinder (2) in order to facilitate the installation of it as a conventional lock cylinder.

Some embodiments include a lock cylinder comprising: a plug assembly having a front portion and a back portion; a housing shell within which the plug assembly is rotatably disposed, wherein the housing shell includes a notch; wherein the back portion of the plug assembly comprises: a locking pin that is movably disposed, and wherein the locking pin is configured to prevent a rotation of the plug assembly when the locking pin is engaged in the notch and prevented from retracting by a multi-stable mechanism; and the multi-stable mechanism having at least two stable configurations corresponding to respectively to a locked state and an unlocked state, wherein the multi-stable mechanism can maintain the stable configurations without consuming energy; wherein, at a first stable configuration, the multi-stable mechanism prevents the locking pin from retracting, and, at a second stable configuration, the multi-stable mechanism enables the locking pin to retract.

A locking system for a door, including a primary locking mechanism and a secondary locking mechanism, in which the primary locking mechanism includes an electrical actuator that causes a first plate and a second plate to be magnetically attracted to one another when actuated such that rotation of a doorknob effects a corresponding rotation of the spindle, and in which the secondary locking mechanism includes a detent that is formed in a knob collar and an aperture that extends through a rotator collar; and a pin that is translatable through the aperture to be disposed in the detent of the knob collar, when the secondary locking mechanism is in an unlocked condition, such that the knob collar and the rotator collar are rotatably fixed to one another.

A multi-point latching device may include a mortise lock and one or more remote latches which are operable with a handle. The mortise lock may include a handle lock which selectively locks and unlocks the handle is independently controllable by an actuator and by a lock cylinder. The lock cylinder may be used to unlock the handle during power failure events where the mortise lock is put into a fail secure state, such that the mortise lock maintains normal functionality as a manual device.

A lock and method for locking wherein the lock includes a cylindrical housing that houses at least a replaceable battery, a lock mechanism, an electronic circuit powered by the replaceable battery, the electronic circuit being configured to authenticate a user and electro-mechanically actuate the lock mechanism of the lock responsive to being activated, and a rotor coupled to the lock mechanism of the lock, the rotor being powered by the replaceable battery and configured to situate the lock mechanism based on a lock state of the lock, and a handle situated outside the cylindrical housing on a front side of the cylindrical housing, the handle being coupled to the lock mechanism, the handle being configured to activate the lock responsive to the user moving the handle.