Handle device for operating doors, windows and the like, comprising a first element (3), which is rotatable about an axis of rotation, a second element (8, 108, 208, 308), and a coupling device which is designed to selectively allow and prevent relative rotation about the axis of rotation between the first and the second element. The coupling device comprises; a first coupling member (15, 115, 215, 315, 515, 615) being connected to the first element; a second coupling member (8, 150, 208, 350) being connected to constituting the second element and at least one engaging member (19, 119, 219, 319, 519) which is displaceable between an engagement position in which it simultaneously engages the first and the second coupling members to thereby prevent relative rotation between the first and second element and a release position in which it is disengaged from at least one of the first and second coupling members to thereby allow relative rotation between the first and second element. A drive member (21, 121, 221, 321, 421, 521, 621) is arranged axially displaceable, concentrically with said axis of rotation, by means of an electrical motor (6, 106, 206, 306, 406, 506) having a rotational output shaft (36, 136, 236, 336, 436, 536, 636). The engaging member and drive member comprise interacting contact surfaces arranged, during axial displacement of the drive member, to displace the engagement member from the release position to the engagement position. The drive member exhibits an interior recess (27, 127, 227, 327, 427, 527). A portion (36, 136, 236, 336, 436a, 536, 636) of the output shaft extends axially through the recess. A helical coil spring (38, 138, 238, 338, 538, 638) is arranged in the recess, concentrically about the output shaft, limitedly axially displaceable relative to the drive member and the output shaft and prevented from free rotation relative to the drive member or the output shaft. The output shaft or the drive member is provided with a radially extending spring engagement member (37, 137, 237, 337, 537, 637) which is arranged to engage the helical coil spring for axial displacement of the drive member relative to the output shaft upon rotation of the output shaft.

A lock assembly is disclosed to lock a moveable structure to a fixed structure. The lock assembly includes an electric actuator operable to move a locking lug between first and second axial positions to correspond with a locked and unlocked configuration of the lock assembly. A resilient member can couple the locking lug to the electric actuator and drive the locking lug between the first and second positions.

An example lock apparatus generally includes a housing, a latch spindle, a drive spindle, an electronic lock mechanism, and an override mechanism. The latch spindle is mounted for rotation relative to the housing, and is operable to actuate a latch mechanism. The drive spindle is mounted for rotation relative to the housing. The electronic lock mechanism is disposed in the housing, and is operable to selectively couple the drive spindle with the latch spindle. The override mechanism is disposed in the drive spindle, and is operable to selectively couple the drive spindle with the latch spindle.

A clutch assembly for a lock includes a driver (1), having a driver shaft (9); a coupler (3); and a follower (2). The driver (1), the coupler (3) and the driver shaft (9) are configured to rotate concentrically together. The coupler (3) is configured to move along the central axis of the driver shaft (9) to couple to or decouple from the follower (2). The driver (1) and the follower (2) are configured to rotate concentrically together when the coupler (3) is engaged to the follower (2), and wherein the driver (1) and the follower (2) are configured to rotate independently when the coupler (3) is disengaged from the follower (2).

An adaptive electric dual-controlled intelligent lock includes a mechanical clutching structure and an intelligent electronic control structure. The mechanical clutching structure includes a lock head, a lock cylinder and a lock tongue, wherein: the lock cylinder includes movable buckles, springs and a bearing. After being inserted into the keyhole of the lock head and then into the locked groove, a key is turned, the movable buckles move in an elastic range of the springs and drive the lock tongue connected with the bearing to swing, thereby realizing a mechanical unlocking process. The intelligent electronic control structure includes a PCB (printed circuit board), a motor and a shifting lever, wherein: a wireless control module is connected with an external mobile intelligent device; after the motor is started, the shifting lever pushes the movable buckles, so that the bearing drives the lock tongue to swing, thereby achieving an intelligent unlocking process.

A door lock mounted to a door includes a latch head. A receiver includes a charging circuit and is mounted to the door. A battery provides electricity required for moving the latch head between a latching position and an unlatching position or providing electricity required for permitting or not permitting movement of the latch head from the latching position to the unlatching position. A transmitter includes a wireless transmitting circuit and is mounted to a door frame to which the door is pivotably mounted. The transmitter is connected to a power supply. When the door is in an open position, the receiver is not aligned with the transmitter. When the door is in a closed position, the receiver is aligned with the transmitter, the receiver receives a radio wave from the transmitter, converts the radio wave into electricity, and stores the electricity in the battery.

A device for preventing unwanted opening of a locked enclosure includes a lock bolt moveable between a locked position and an unlocked position. A face gear is meshable with and rotatable by the worm gear between locking and unlocking positions when the worm gear is driven in the first and second directions, respectively. A blocker member is rotatable between first and second positions. A biasing member is operatively coupled to the face gear and the blocker member to bias the blocker member in a biasing direction. A sliding member selectively disengages the blocker member to allow the blocker member to rotate in the biasing direction. A lever arm is operatively coupled to the sliding member such that the lever arm is in the disengaged and engageable positions when the sliding member engages the blocker member in the first and second positions, respectively.

The invention relates to an electronic lock that defines an open position and a closed position and includes a mobile carriage moveable in a linear manner. The mobile carriage is coupled to a closure element and to an actuation mechanism. A first spring is provided between the mobile carriage and the closure element and is configured to move in relation to the mobile carriage. A lock sensor is provided for controlling the position of the closure element. An electronic control module is connected to the sensor for identifying non-authorised manipulations of the lock when it should be closed. The lock sensor detects when the closure element is in the open position or, if it should be open, the lock sensor does not detect when the closure element is in the open position.

A locking device including: a locking pin movable in a linear direction; a tappet movable in the linear direction; and a clamping device connecting the tappet to the locking pin. Wherein the clamping device having an inner spring and an outer spring arranged coaxially relative to each other in the linear direction, and the inner spring is at least partially surrounded by the outer spring in a radial direction orthogonal to the linear direction.

The present disclosure provides a lock and a method and a system for controlling the lock. The lock may include an operation part, an action part, and a bolt. The action part may be configured to drive the bolt to move. The operation part and the action part may be connected to each other via a transmission connection. The transmission connection may be blockable.