This present application discloses a handle and a lock structure applying to the handle, the handle including a handle portion and a rotating shaft portion for use with the handle portion, the handle portion and the rotating shaft portion are slidably and rotatably fitted to form a snap-fit mounting structure, and the handle portion is provided with a press-on member for locking the rotating shaft portion after the snap-fit is formed; the snap-fit mounting structure includes a first snap-fit portion and a second snap-fit portion, at least two snap-fit positions are formed on the first snap-fit portion, different snap-fit positions of the snap-fit mounting structure are selected to determine a mating use state of the handle portion and the rotating shaft portion, and the rotating shaft portion is rotated, so that the second snap-fit portion is snap-fitted to a corresponding snap-fit position of the first snap-fit portion.

A latch assembly for closing a door of a glovebox compartment includes a key cylinder having an eccentric shaft; a striker connected to the key cylinder to form a scotch-yoke connection to the eccentric shaft so that a rotation of the key cylinder is transformed to a linear movement of the striker; and a pair of latching members to lock the door. The pair of latching members includes a first latching member having an operation portion to engage or disengage from the striker, and a second latching member connected to the first latching member to simultaneously move with the first latching member. The key cylinder rotates to switch between an unlocked state in which the striker engages the operation portion and a locked state in which the striker is disengaged from the operation portion.

A lock having a rotatable auxiliary positioning structure is adapted to connect with a latch element which includes a drive orifice, and the lock contains: a first locking assembly and a second locking assembly. The first locking assembly includes a transmission unit and a guide seat, the guide seat has at least one guiding extension. The second locking assembly includes a driving element, and a connecting position is defined between the first locking assembly and the second locking assembly in a rotatable direction. At least one of the transmission unit and the driving element is rotatably received in and drives the drive orifice of the latch element, the at least one guiding extension is configured to be connected with the latch element and to guide the first locking assembly to be positioned on the connecting position along the rotatable direction opposite to the latch element.

A locking mechanism is provided for a portal closure that includes a first side, and a second side The portal closure including a latch movable into and out of engagement with a latch receiver and a latch driving device coupled to the latch for moving the latch into and out of engagement with the latch receiver The latch driving device includes a controllable lock member movable between a locked position where the latch is fixedly positioned in the latch receiver and an unlocked position where the latch is capable of being disengaged from the latch receiver and a second side latch driving device mover disposed on the second side of the portal closure. The locking mechanism includes a first side latch driving device mover disposed on the first side of the portal closures, and coupled to the latch driving device for moving the latch driving device to cause the latch to move into and out of engagement with the latch receiver. A signal generator is provided for generating a human detectable signal. A lock actuator is coupled to the controllable lock member for moving the locking mechanism between a first normal position wherein the second side lock driving device is capable of being moved between an unlocked position to permit the latch to be disengaged from the latch receiver and a locked position where the latch is prevented from being disengaged from the latch receiver; and a second emergency position wherein the second side lock driving device is in the locked position, and the signal generator is actuated to generate a human detectable signal. A power source is provided for powering the signal generator when the locking mechanism is in the second emergency position. A switch is coupled between the power source and the signal generator for controlling the flow of current between the power source and the signal generator.

A magnetic self-latching device for a gate has a main body with handles on either side for operation or has an arrangement to be remotely actuated. A latching body has a high strength magnet usually provided at the bottom of a cavity which defines a latching shoulder. The latching body is adapted to be fixed to a gate post. The main body, with its housing, can be mounted on the gate frame and incorporates a latch pin which, in the door-closed position, is displaced by magnetic attraction to an extended latching position and against the biasing of a return spring. The gate cannot be opened until actuation of the mechanism occurs, for example by rotating a handle to retract the pin against the magnetic force; the gate can then be swung open. When the handle is released, the biasing spring retains the latch pin in a retracted position.

A zipper lock has a combination locking system defined by dials and clutches and a key overriding mechanism. The lock has a pole to receive zipper pullers and a movable cover plate to block the pole when the lock is in the locked mode. The lock has a control plate with release slots. The control plate can be shifted only if the dials are set to the correct combination or when a correct key is used to turn a tumbler cylinder. The cover plate is engaged with a latch having a latch finger. When the lock is in the locked mode, the latch finger is blocked by the control plate, restricting movement of the latch. When the lock is in the unlocked mode, the latch finger can be moved into a release slot, allowing the latch and cover plate to move in order to clear the pole.

A door lock has an inner door assembly, an indoor doorknob assembly, and an outdoor doorknob assembly. The inner door assembly has a locking assembly casing. The indoor doorknob assembly has a positioning resilient component located in the locking assembly casing and configured to switch the door lock between a locked state and an unlocked state. The door is provided with enhanced protection by enclosing the positioning resilient component in the locking assembly casing, so the safety is further improved.

An electronic lock cylinder contains: a receiving sleeve, a lock head, a fastener, a rotation element, a rotatable actuation element, a driven element, a drive motor, a resilient element, an operation element, a locking element, and a locating cap. Thereby, the drive motor moves clockwise or counterclockwise to drive the rotary column to rotate 90 degrees and to simultaneously actuate the driven element, the drive motor, the resilient element, and the engagement projection of the operation element to move forward or backward to rotate or rotate idly in the notch of the locking element, thus saving energy and obtaining environmental protection.

A door latch for a motor vehicle compartment includes a latch pawl having a locked position and an unlocked position, the locked position preventing access to the compartment, the unlocked position providing access to the compartment, and an actuator that rotates about a first pivot point. The actuator selectively engages with the latch pawl to move the latch pawl from the locked position to the unlocked position.

An interchangeable electro-mechanical lock core for use with a lock device having a locked state and an unlocked state is disclosed. The interchangeable electro-mechanical lock core may include a moveable plug having a first position relative to a lock core body which corresponds to the lock device being in the locked state and a second position relative to a lock core body which corresponds to the lock device being in the unlocked state. The interchangeable electro-mechanical lock core may include a core keeper moveably coupled to a lock core body. The core keeper may be positionable in a retain position wherein the core keeper extends beyond an envelope of lock core body to hold the lock core body in an opening of the lock device and a remove position wherein the core keeper is retracted relative to retain position to permit removal.