An intelligent door lock system for a door at a dwelling. The intelligent door lock system includes a door status device is at the dwelling, an engine, an energy source, a memory, and a camera. The door status device is coupled to a drive shaft of a lock device to assist in locking and unlocking a lock of a lock device at the door. The lock device is coupled to the door status device and includes a bolt. The engine, the energy source, and the memory are coupled together. The camera is configured to record in response to door lock status.

There is provided an electrical key lock device, including a second gear configured to rotate by driving power received from a motor, a first gear configured to transfer the driving power, received through the rotation of the second gear, to an external rotational element, and a third gear arranged between the second gear and the first gear and configured to transfer the driving power generated by the motor to the first gear. The third gear enables switching between closing and opening of a transfer path of the driving power between the second gear and the first gear.

A door lock actuation device configured for operating a door lock in a door blade, wherein the door lock includes a dead bolt driven by rotation of a connector is provided. The device includes a casing, inside which there is provided a motor for driving a rotational connector-receiver that receives and rotates the connector. The device also includes a rotational handle mechanically connected to the connector-receiver, for forcing rotation of the connector-receiver by manual rotation of the handle. The motor is selectively disconnectable from the connector-receiver for manual driving of the connector-receiver by the handle without backdriving the motor.

An electric locking device for an operable/closable member attached to an opening portion, includes a biasing member which biases a pair of rods in a direction in which the rods are brought into engagement with a pair of locking portions, an actuator for sliding the rods to disengage from the locking portions, the actuator having a case having an opening portion, a motor disposed within the case, a worm rotated by the motor and a worm wheel supported rotatably on the case and interlocked with the worm for rotation. The worm wheel has a rotating portion projecting outwards of the case from the opening portion, and proximal end portions of the rods are assembled individually to the rotating portion so as to move in an associated fashion, causing the rods to slide in a synchronized fashion in opposite directions to each other.

An intelligent door lock system is provided with a push notification. A sensor is configured to be coupled to a drive shaft of a lock. The position sensing device senses position of the drive shaft to assist in locking and unlocking a lock of a lock. An engine with a memory is coupled to the positioning sensing device. The engine and an energy source are coupled to the circuit. A push notification is provided to a dwelling user when a lock of the intelligent door lock system is manually opened.

A gear system for a deadbolt lock including a planetary gear set. The gear system may include a thumb turn direct-drive system to bypass a motor, and an overload protection system to prevent damage to the motor in the event of a jam.

A guard locking element (4) actuatable by means of an electric drive (6). By means of the electric drive (6), the guard locking element (4) can be brought into a blocking position such that an actuator (2) of a safety switch is locked by said guard locking element. The guard locking element (4) is connected to the electric drive (6) by means of a coupling (11) such that a rotary motion of the electric drive (6) is converted into a purely translatory motion of the guard locking element (4).

A system allows dwelling access to third parties. An intelligent door lock system at the dwelling includes a device configured to he coupled to a drive shaft of a lock device, with the device sensing movement of the drive shaft to assist in locking and unlocking a lock of a lock device. The intelligent door lock system is configured to be in communication with a server. An occupant/or owner, or end-dwelling user of the dwelling communicates with the server to grant a third party secured access to a dwelling, which can be programmatic.

A door lock controlling device is adapted to be disposed between a door and a push bar which is mounted on the door and which is operable between locked and unlocked positions. The door lock controlling device includes a belt and a rolling unit. The belt is adapted for extending around the push bar, and has a fixed end adapted to be fixedly secured to the door, and a movable end. The fixed end and the movable end are adapted to be respectively located at opposite sides of the push bar. The rolling unit is adapted to be mounted to the door, and includes a rolling member that is connected to the movable end, and that is rotatable in a rotational direction to roll the belt such that the push bar is depressed by the belt to the unlocked position.

An intelligent door lock system is provided with a push notification. A sensor is configured to be coupled to a drive shaft of a lock. The position sensing device senses position of the drive shaft to assist in locking and unlocking a lock of a lock. An engine with a memory is coupled to the positioning sensing device. The engine and an energy source are coupled to the circuit. A push notification is provided to a dwelling user when a lock of the intelligent door lock system is manually opened.