The subject matter of this specification can be embodied in, among other things, a rotary lock assembly that includes an epicyclic gear assembly that includes a sun gear assembly having a sun gear axial aperture defined therein, a ring gear assembly, and a planet gear assembly mechanically engaged to the sun gear assembly and to the ring gear assembly, a lock motor configured to urge rotation of the sun gear assembly, and a screw lead extending axially through the sun gear axial aperture.

The present disclosure provides systems for smart security. The system may include a smart security device, a control module, a driving module, and a mechanical structure. The control module may be configured to send a control instruction to the driving module. The driving module may be configured to drive the mechanical structure based on the control instruction, thereby performing a state switching operation of the smart security device.

The present application provides a motor gearbox used in, for example, a smart door lock. The gearbox may comprise a housing, a motor disposed in the housing, a gearbox output shaft disposed in the housing; and a clutch mechanism comprising a main gear and a planetary gear meshing with the main gear. The main gear may be connected and driven by the motor, and the planetary gear may be selectively connected to the gearbox output shaft when the motor drives the main gear to rotate. When the main gear is rotating, the planetary gear may move in a circumferential direction of the main gear.

A device for a controlled locking or release of a safety-relevant, movable component (2), such as a protective door, protective cover of the like, with a movable blocking element (51) and with a self-locking drive unit (5, 17, 19, 21, 23, 27) controlling adjustment movements of the blocking element (51) between a locked position and a released position is characterized in that an actuator (33) is provided that can be moved by the drive unit (5, 17, 19, 21, 23, 27), said actuator being mechanically coupled to the blocking element for a transfer of the blocking element (51) into the released position brought about by the drive unit (5, 17, 19, 21, 23, 27) and being capable of decoupling for a transfer of the blocking element (51) into the released position brought about independently of the drive unit (5, 17, 19, 21, 23, 27).

An intelligent door lock system coupled to a door at a dwelling. a door status device is at the dwelling. 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. An engine, an energy source and a memory are coupled together. A camera is coupled to or part of the intelligent door lock system. The camera is configured to record in response to door lock status.

A wireless access system at a building is provided. A door lock system includes: a lock status device configured to be coupled to the drive shaft of a lock device, the lock status device assisting in locking and unlocking a lock of a lock device. A processor is coupled to the door lock system. An image capture device at the building is configured to be in communication with the door lock system and capture an image of an object in the vicinity of the building. A light source assembly is in communication with the image capture device.

A touchless stall door opening and closing system includes a motor, a door pivot for pivoting a door between an open position and a closed position, a locking mechanism for locking the door when the door is in the closed position, and a microcontroller for receiving a signal from a first sensor to drive the motor for opening the door and for receiving a signal from a second sensor for actuating the locking mechanism for unlocking the door. A method for touchless operation of the door includes touchless opening of the door, touchless closing of the door, and touchless locking and unlocking of the door.

The present disclosure provides a driving mechanism for a door lock and a door lock. The driving mechanism includes a motor, a planet gear assembly and a holding frame. The planet gear assembly includes a gear ring, a planet gear and a sun gear. The motor is rotatably coupled to the sun gear. The gear ring defines a receiving space. The planet gear and part of the sun gear are received in the receiving space. The planet gear is rotatably coupled between the sun gear and the gear ring. The holding frame is located on one side of the planet gear assembly. The planet gear is coupled to the holding frame. When the gear ring is in an unmovable state, the sun gear is rotated by the motor. When the sun gear is in an unmovable state, the gear ring is controlled to rotate.

A driving mechanism for a door lock and a door lock are provided. The driving mechanism includes a motor, a planetary gear assembly, and a cage. The planetary gear assembly includes a ring gear, a planet gear, and a sun gear. The motor is rotatably connected to the ring gear. The planet gear is further rotatably connected to the sun gear. The planet gear is connected to the cage. When the sun gear is in a fixed state, the ring gear is driven by the motor to rotate. When the ring gear is in a fixed state, the sun gear, the planet gear, and the cage are configured to cooperate with one another, to make the planet gear rotates relative to the sun gear and the cage rotate.

An electric lock body is provided. The electric lock body includes a housing, a driving mechanism, and a bolt. The driving mechanism includes a motor, a planetary gear assembly, and a cage. The planetary gear assembly includes a ring gear, a planet gear, and a sun gear. The motor is rotatably connected to the sun gear. The planet gear is rotatably connected between the sun gear and the ring gear. The cage is disposed at one side of the planetary gear assembly. The ring gear and the sun gear each abut against the cage. The planet gear is connected to the cage. The bolt is connected to the cage. When the cage rotates, the bolt is driven by the cage to move, to make the bolt switch between an unlocked state where the bolt is accommodated in the housing and a locked state where the bolt extends beyond the housing.