A door locking device for a smart door apparatus (10) is provided comprising an interior door handle positionable on an interior side of a door; an exterior door handle positionable on an exterior side of the door (14); a lock for the door (14) which is coupled to the interior door handle, the lock having a deadbolt which is activatable by actuation of the interior door handle; a controller for automatically generating an alert signal in the event of activation of the deadbolt; and a wireless communication module associated with the controller, the wireless communication module automatically transmitting the alert signal in the event of activation of the deadbolt.

An electronic latch assembly includes a latch bolt movable between an extended position and a retracted position; and a motor having a rotatable output shaft arrangement that is either directly or indirectly connected to the latch bolt for moving the latch bolt between the extended and retracted positions and rotating the output shaft arrangement between a first angular position in which the latch bolt is capable of being translated to the retracted position and a second angular position in which the latch bolt is locked and not capable of being translated to the retracted position.

A latch bolt buffer structure is disclosed for lock body, including outer lining board for lock body, latch bolt assembly, damper, connecting rod, latch bolt poking mechanism, dead bolt mechanism, box cover and box bottom assembly for lock body. Latch bolt assembly includes latch bolt, friction bolt, pull rod, spring, limiting silencing ring, and slider. The box bottom assembly includes an inner lining board for the lock body, a silencing block for the dead bolt, a silencing block for the latch bolt, a box bottom, a positioning plate, a spring, a fixing nail and a damper. Manufacturing parts made of sound-absorbent plastic material is adopted to replace metal parts, or separating metal parts by sound-absorbent plastic material is adopted to reduce noise generated by friction. At the same time, the damper buffer function is used to reduce sound generated by parts collision when lock body is working.

This invention relates to a latch (preferably a slam latch) and to methods of operating a door/gate/panel using the latch. The latch comprises: (i) a mounting body; (ii) a latch bolt mounted relative to the mounting body for movement between a locking position and an unlocking position, said latch bolt having a keeper-engaging region extending from the mounting body and terminating at a keeper-engaging end; and (iii) a keeper having at least a first wall and a second wall which are spaced to define an opening for receiving the keeper-engaging region, wherein the first and second walls are adapted to engage the keeper-engaging region of the latch bolt when the latch bolt is in the locking position.

A door lock with a reinforced fireproof effect includes a lock body mounted on a door and inner and outer operating units mounted to two sides of the door, respectively. The lock body includes inner and outer chassis made of ferrous material or stainless steel having a melting point higher than 1300° C. Inner and outer fixing members coupled with the inner and outer chassis are also made of ferrous material or stainless steel. Thus, these components of the door lock are less likely to melt during a fire, reducing the spreading speed of the fire.

The disclosure is an intelligent electronic lock. The intelligent electronic lock includes: an electronic lock shell, a wireless communication module, an instruction input device, the instruction input device is arranged on the electronic lock shell for instruction input, a processor, the processor is connected to the wireless communication module and the instruction input device is connected to receive and send signals, and the electronic rope.

A method of installing a receiving member for a latch assembly or strike assembly in a door or jamb. The receiving member including a base plate, a wall around the perimeter of the base plate, the wall extending substantially perpendicular to the base plate, and a flange extending outwardly from the perimeter of the wall distal the base plate. The base plate has an aperture therein configured to allow a latch to pass therethrough.

A panic bar latch release assembly is disclosed having an inside latch release and an outside pull type handle latch. The handle latch includes a main housing having a pivotal pull handle. The inside latch release includes a first bar mount, a second bar mount, and an elongated push bar. The first bar mount has a support bracket with a floor with a first stop wall and an extended portion with a push rod guide hole extending therethrough. A body portion is coupled to the support bracket which includes a handle mount channel which is partially defined by a second stop wall. A handle mount is pivotally coupled to the body portion. An elongated push rod is positioned within a push rod channel of the door so as to extend through the push rod guide hole.

Systems, devices, and methods of locking a lockable volume. The lock may comprise a bolt and a slider. The slider moves linearly to move the bolt in position to engage a securement feature. The engagement of the bolt with the securement feature secures the securement feature, thereby locking the door to which the securement feature is attached.

A compression latch includes a cylindrical housing (1). A locking shaft (2) is rotatably and axially movable in the housing. The locking shaft includes an axial free end (14) that engages a locking element (12). A cylindrical sleeve (3) engages an axial end of the locking shaft opposed of the free end. The sleeve includes an axially tapered annular sleeve slot (19) in which a shaft engagement pin (7) is engaged to cause axial movement of the locking shaft with rotational movement sleeve until the pin engages a slot end. After pin engagement with the slot end, further rotation of the sleeve causes rotation of the locking shaft. A cylindrical securing element (4) is rotatably engaged with and is axially movable relative to the sleeve. The securing element includes a circumferentially extending guiding recess (17) and a transversely extending latching recess (18). A securing element engaging pin (9) is engageable with the latching recess to prevent rotational movement of the securing element and the sleeve until the securing element is moved axially inwardly to disengage the pin and the latching recess.