The present invention relates to a push pull door lock that includes a door locking part disposed inside a door to lock the door, bodies fixedly located to the indoor and outdoor sides of the door, handles pushedly or pulledly disposed on the bodies to release a locking state of the door locking part, and locking means disposed on the bodies to lock the operations of the handles so that the door is locked, wherein the locking means includes: a key knob rotatably disposed on the body located on the indoor side of the door; a key assembly rotatably disposed on the body located on the outdoor side of the door and connectedly rotating unitarily with the key knob; and a stopper connectedly rotating unitarily with the key assembly and locking the operations of the handles.

The present invention relates to a push pull door lock that includes a door locking part disposed inside a door to lock the door, bodies fixedly located to the indoor and outdoor sides of the door, handles pushedly or pulledly disposed on the bodies to release a locking state of the door locking part, and locking means disposed on the bodies to lock the operations of the handles so that the door is locked, wherein the locking means includes: a key knob rotatably disposed on the body located on the indoor side of the door; a key assembly rotatably disposed on the body located on the outdoor side of the door and connectedly rotating unitarily with the key knob; and a stopper connectedly rotating unitarily with the key assembly and locking the operations of the handles.

A latch mechanism includes a hook-handle assembly coupled to a first panel and a clevis coupled to a second panel. The hook-handle assembly engages the clevis to secure the first panel relative to the second panel.

A latch mechanism includes a hook-handle assembly coupled to a first panel and a clevis coupled to a second panel. The hook-handle assembly engages the clevis to secure the first panel relative to the second panel.

A locking system for locking a closure element, more particularly a door, having a main body, which rotatably receives an actuation element, for arrangement on one side of the closure element and having a locking module for arrangement on the opposite side of the closure element. The actuation element has an interface for connection to the locking module. The main body has a fixed interface for connection to the locking module; and depending on the type of locking module, same can only be connected to the co-rotating interface or to both interfaces. The disclosure also relates to a closure element having such a locking system, and a method for assembling a locking system.

A locking system for locking a closure element, more particularly a door, having a main body, which rotatably receives an actuation element, for arrangement on one side of the closure element and having a locking module for arrangement on the opposite side of the closure element. The actuation element has an interface for connection to the locking module. The main body has a fixed interface for connection to the locking module; and depending on the type of locking module, same can only be connected to the co-rotating interface or to both interfaces. The disclosure also relates to a closure element having such a locking system, and a method for assembling a locking system.

A latch assembly for housing cover is provided. Latch assembly has switch, latch, elastic clamp, and pushbutton. Switch is disposed on first side of cover. Switch is slidable in first direction to unlocked position for unlocking latch assembly and slidable in second direction to locked position for locking latch assembly. Latch has projection for engaging and disengaging with latch slot in housing for releasably latching cover to housing. Elastic clamp has detent portion for releasable engagement with notch in second side of cover. Latch and elastic clamp are disposed on second side of cover opposite switch and coupled to switch. Pushbutton extends through aligned openings in switch, latch, and portion of elastic clamp. Latch assembly is unlocked by depressing pushbutton to impinge on elastic clamp portion, thereby disengaging detent portion from notch and by simultaneously moving the switch in the first direction.

A latch assembly for housing cover is provided. Latch assembly has switch, latch, elastic clamp, and pushbutton. Switch is disposed on first side of cover. Switch is slidable in first direction to unlocked position for unlocking latch assembly and slidable in second direction to locked position for locking latch assembly. Latch has projection for engaging and disengaging with latch slot in housing for releasably latching cover to housing. Elastic clamp has detent portion for releasable engagement with notch in second side of cover. Latch and elastic clamp are disposed on second side of cover opposite switch and coupled to switch. Pushbutton extends through aligned openings in switch, latch, and portion of elastic clamp. Latch assembly is unlocked by depressing pushbutton to impinge on elastic clamp portion, thereby disengaging detent portion from notch and by simultaneously moving the switch in the first direction.

A lever-operated latch device includes an assembly of a case body, an actuation body mounted on the case body, a linking member and a slide body. The actuation body has a free end and a pivoted end pivotally connected with the case body in cooperation with elastic members. The free end of the actuation body is formed with two protruding arms and an opening section positioned between the protruding arms. An operation section is disposed in the opening section. The linking member has a first end pivotally connected with the free end of the actuation body (or the operation section) and a second end connected with the slide body. When an operator presses the operation section, the actuation body is permitted to move from a closed position to an opened position so as to drive the linking member and the slide body to move.

A keycam assembly including a rotatable member, a stem, a locking member coupled to the stem for joint longitudinal movement therewith, and a cam driver. The rotatable member includes an aperture. A proximal end portion of the stem is rotatably seated in the rotatable member and defines a cam track. The locking member extends between the aperture and the cam track. The cam track includes a first passage including a locking pocket, a second passage including an unlocking pocket, a first ramped passage including a locking ramp extending from the second passage to the locking pocket, and a second ramped passage including an unlocking ramp extending from the first passage to the unlocking pocket. Relative rotation of the rotatable member and the stem causes the cam driver to travel along the track to thereby cause movement of the locking member between a locking position and an unlocking position.