A fastener operating structure includes a holding base and a fastening-connecting unit. The holding base is disposed at a first object. The fastening-connecting unit is movably disposed at the holding base. The fastening-connecting unit is fastened to a second object. Consequently, the holding base is disposed at the first object, and the fastening-connecting unit is coupled to or removed from the second object, so as to couple together and separate the first and second objects repeatedly and quickly.

A latch structure according to an embodiment includes a body, a locking body, a latch head, a plunger, and a latch stopper. The body is disposed inside a door. The locking body moves in response to an external operation. The latch head protrudes from the body to maintain the door in a closed position, and rotates when the locking body is spaced apart at least a predetermined distance. The plunger retracts into the body to prevent the latch head from rotating while the door is being closed. The latch stopper prevents the protruding latch head from retracting into the body when the plunger is maintained within the body.

The present application provides a lock (100) for a door. The lock comprises a housing (102), a lock mechanism (108), and a bolt (104). An end portion (112) of the bolt comprises a trigger (106). The lock mechanism is operable to move the bolt between a locked position in which the end portion extends through an opening in the housing and projects from the housing, and an unlocked position in which the end portion is within the housing. The lock further comprises a retraction mechanism (110), wherein actuation of trigger causes the retraction mechanism to automatically move the bolt from the locked position into the unlocked position.

A latch arrangement for fastening a panel of a door or a window to a frame element is provided. The latch arrangement includes a locking element mounted on the frame element and displaceable between a locked position in which the locking element can be engaged with the panel locking thereby the panel to the frame element, and an unlocked position in which the locking element is disengaged from the panel unlocking thereby the panel from the frame element. An actuating mechanism, optionally including a manually operable handle, is mounted on the panel and configured to selectively engage the locking element and to displace the locking element to the unlocked position. Where a stop latch provides deadlock functionality, the panel-mounted actuating mechanism preferably sequentially releases the stop latch and then displaces the locking element.

The lock according to the invention is meant for locking cabinets, vaults and different machines. The lock has a lock frame, which comprises a bolt. A lock cylinder has been arranged in connection with the lock frame. The lock frame further comprises a power transmission mechanism between the lock cylinder and the bolt. The power transmission mechanism comprises a transmission lever and a latch. The transmission lever additionally comprises a retaining protrusion. The bolt comprises a locking pin and the lock frame additionally comprises a hole for the locking pin. The lock is arranged to allow movement of the lock cylinder and the power transmission mechanism in the direction of the longitudinal axis of the lock cylinder due to an external hit or drilling of the lock cylinder, whereby the movement in the direction of the longitudinal axis moves the retaining protrusion away from the locking pin. Thus, the end of the locking pin moves into the hole in the frame.

A length adjustable door lock includes a latch assembly, a lock core connected with the latch assembly, a lock bolt connected with the lock core, and a housing sleeved on the lock bolt. The latch assembly and the lock core respectively have an embedding opening and slot having matchable shape, wherein a buckling portion is formed and provided on the lock bolt coordinately, wherein the buckling portion is adapted for being assembled in the slot of the lock core through the embedding opening, which is easy for the assembling.

A lock with a roller deadbolt includes a driving member having a first slot and a transverse slot. The driving member is connected to a first spring, a second spring and a positioning rod. A deadbolt includes a body, an insertion member, a roller and a slide. The driving member is connected to the body. The insertion member is received in the body. The second spring biases the insertion member. The slide is restricted by the positioning rods of the driving member and has a first guide pin extending through the first slot. The slide is movable along the first slot. The guide hole includes an extension slot and an inclined slot which inclinedly communicates with the extension slot. When in a non-transmission position, the roller protrudes beyond the receiving space. When in the transmission position, the roller does not protrude beyond the receiving space.

The present invention relates to an improved carabiner system, including an impact-dampening cushion around the external surface of the frame for cushioning damage during a fall or collision and to reduce sound from loose or swinging carabiner collisions. Additional surface routing and through holes provide improved register between the carabiner frame and the over-molded cushion layer.

A door latch mechanism including a latch housing, a bolt having a proximal end with a head and a distal end having a latch, a hub including a central bore for receiving a spindle, a lever actuated by rotation of the hub, the lever including a slot in a top portion of the lever receiving the head of the bolt such that the lever and the bolt move together in both rearward and forward directions.

The disclosure relates in general to a deadbolt latching mechanism for a door. Specifically, the disclosure relates to a fortified deadbolt latch providing fortification against attempted prying of a door against the locking mechanism. A fortified deadlock latch device configured to reversibly move between an extended locked and retracted unlocked position, the device comprising: a. a latch housing having a longitudinal axis; b. a latching assembly, the latching assembly slidably coupled to the latch housing along the longitudinal axis; c. a bolt assembly coupled to the latching assembly, the bolt defining a circumferential surface; d. a rocker hingedly coupled to the bolt assembly, the rocker having a proximal end and a distal end, wherein, the distal end is configured to protrude beyond the bolt assembly's circumferential area and engage a frame jamb box in the extended position; and e. a bolt sleeve or a face plate, operably coupled to the latch housing.