A rotating cylinder applied to a lock is disclosed. The rotating cylinder is configured to guide a transmission element of the lock and defining a central axis. The rotating cylinder includes an opening, an inner wall, a first guiding structure, a second guiding structure and an engaging groove. The inner wall is communicated with the opening. The first guiding structure is formed on the inner wall and includes a first curved surface. The second guiding structure is formed on the inner wall and opposite to the first guiding structure. The second guiding structure includes a first curved surface. The engaging groove is formed between the first guiding structure and the second guiding structure. The first curved surface of the first guiding structure and the first curved surface of the second guiding structure are closer to the opening than the engaging groove.

An anti-unlocked mechanism comprises a transmission gear, a sliding rod, a locking member and a first elastic member. The transmission gear includes an arc surface. An end of the sliding rod contacts the deadbolt of the lock body. The sliding rod is provided with a fixed stopper and a second elastic member. When the deadbolt is retracted, the sliding rod moves with the deadbolt against the elastic force of the second elastic member. When the deadbolt extends, the locking member moves with the sliding rod to block the rotation of the rotating part. The first elastic member comprises first and second protrusions. The second protrusion will not hinder the fixed stopper of the slide rod unless the first protrusion contacts with the circular arc surface, which will block the movement of the locking member to block rotation of the rotating part.

An exemplary apparatus includes a housing, a lock mechanism mounted to the housing, an electromechanical driver, a first override mechanism, and a second override mechanism. The electromechanical driver is mounted to the housing and is operable to unlock the lock mechanism. The first override mechanism is movably mounted to the housing and is operable to unlock the lock mechanism. The second override mechanism is movably mounted to the housing and is operable to unlock the lock mechanism. The apparatus has a first configuration in which a lock cylinder is engaged with the first override mechanism such that actuation of the lock cylinder unlocks the lock mechanism. The apparatus has a second configuration in which the lock cylinder is engaged with the second override mechanism such that actuation of the lock cylinder unlocks the lock mechanism.

A vehicle that includes a door, handle, shaft, and a latch assembly is provided. The latch assembly is coupled to the door to selectively secure the door. The latch assembly includes a security tether configured to prevent the shaft from moving the pawl when the lock lever is located in the locked condition. The security tether further includes: a plate attachable to the latch assembly; the plate includes an aperture sized to receive at least a portion of the lock lever that is disposed through the aperture; the plate includes first and second stop surfaces to limit movement of the lock lever; the first and second stop surfaces are also spaced apart from each other; the lock lever is movable between the first and second stop surfaces; at least the first stop surface is spaced apart from the first location on the pawl; and the lock lever engages the first stop surface when the lock lever is located in the locked condition to prevent the pawl from moving to the unlatched condition and unlatching the latching assembly.

An exemplary handle assembly including a handle and a coupling mechanism. The handle includes a shank and a manually graspable portion extending from the shank. The coupling mechanism includes a coupling member and a cam sleeve. The coupling member is mounted to the shank for movement between a coupling position and a decoupling position. The cam sleeve is movably mounted to the shank and covers the coupling member. A radially-inner portion of the cam sleeve includes a cam surface operable to engage the coupling member. The cam surface is configured to drive the coupling member from the decoupling position to the coupling position as the cam sleeve is displaced from a home position to a displaced position.

Here is provided a device for securing a standard deadbolt lock in a locked orientation so that the deadbolt lock cannot be unlocked by an intruder. The device disclosed includes an elongated member pivotally coupled to a base member by a pivotal joint. The base member is securely mounted to a housing of the deadbolt lock and the protruding member has an elongated groove dimensioned and configured to receive the latch of the deadbolt lock and secure it within the groove such that the latch cannot be rotated to unlock the deadbolt lock. The protruding member is pivotally movable between a closed position wherein the latch is contained within the groove and an extended position wherein the protruding member is positioned away from the latch.

A door lock device is provided and includes: a housing, an acting assembly arranged in the housing and having a lock tongue, an operating assembly arranged in the housing and interlocked with an outdoor handle, and a regulating assembly arranged in the housing for a user to regulate the operating assembly into an interlocking state or an idle state. As such, in the interlocking state, the outdoor handle drives the acting assembly through the operating assembly to cause the lock tongue to extend or retract relative to the housing, and in the idle state, the operating assembly cannot drive the acting assembly and the outdoor handle cannot be interlocked with the lock tongue.

A dead-locking control mechanism for a door lock includes: a lock body; a fixing assembly; a rotatable spindle assembly having a first end rotatably connected with the fixing assembly and a second end in torque transmission connection with the bolt of the lock body, such that the bolt is drivable to extend beyond or retract into the fixed object; and a dead-locking control assembly including a stopping member arranged at the first end of the spindle assembly. The stopping member is movable between first and second positions relative to the spindle assembly, wherein in the first position, a first end of the stopping member is engaged with the fixing assembly and locked relative to the fixing assembly to thereby prevent the spindle assembly from rotating, and wherein in the second position, the stopping member is released from fixing assembly and thus the spindle assembly is capable of rotation freely.

The present invention relates to a handle arrangement (100) for arrangement to a door comprising a body (1), a handle (2) rotatably arranged to the body (1) and movable between closed and an open position, and a latch mechanism (6) for latching a door to a door frame. The latch mechanism (6) being maneuverable between a latching position and an unlatching position by rotating the handle (2) round a first rotational axis (A), The latch mechanism further comprises a lock arrangement (4) rotationally movable around its central axis (C) and comprises a moveable locking element (7) configured to be moved between an unlocked position and a locked position upon rotation of the lock arrangement (4), wherein the locking element (7) comprises a flange (8) and the handle (2) comprises a stopping surface (9), wherein said flange (8) in the locked position is configured to abut the stopping surface (9) to prevent rotation of the gripping portion (3) around said first rotational axis (A).

A transmission mechanism applied to a lock and for controlling the lock to switch between an unlocked state and a locked state. The lock includes a first handle set including a first cover plate which includes a first fitting portion. The transmission mechanism includes a transmission element and a moving component. The transmission element is connected to the first handle set in a manner that the transmission element is incapable of moving along a rotating axis and has an abutting portion. The moving component is disposed on the transmission element in a manner that the moving component is capable of moving along the rotating axis and includes a first engaging groove, a second engaging groove and a second fitting portion. When the transmission element is operated to rotate, the abutting portion is capable of switching between the first engaging groove and the second engaging groove.