A door lock system includes a shaft and a cam. The cam is supported on the shaft for rotation with the shaft, and for movement along the shaft throughout a range of door lock release locations. A selector engages the cam to move the cam along the shaft upon rotation of the selector. An actuator lock has a closed condition blocking rotation of the shaft, and has an open condition permitting rotation of the shaft. The actuator lock prevents rotation of the cam at any of the door lock release locations when the actuator lock is in the closed condition.

A door apparatus, including a first lintel, including a first slideable bolt, and a first rotatable cogged wheel, being interlaced with the first slideable bolt, and a door, including a second bolt being slideable by key operation, to interlace the first rotatable cogged wheel to rotate thereof, thereby to slide the first slideable bolt, and a first depression, for housing the first slideable bolt of the first lintel, thereby locking thereof to the door, thereby massive locking allows reducing the second bolt of the door.

An emergency escape apparatus includes a support frame that is configured to be installed on a door or a wall and that defines an exit opening, an escape door that is located at an inner side of the exit opening and configured to open and close the exit opening and that defines an accommodation space, a driving unit located in the accommodation space and configured to rotate relative to the escape door, and an unlocking device that is located in the accommodation space, that is configured to be pushed by the driving unit, and that is configured to release coupling between the escape door and the support frame based on rotation of the driving unit. The driving unit is configured to be controlled by a control unit based on a sensor detecting an event.

A latch for a closure panel of a vehicle, the latch comprising: a housing; a ratchet mounted to the housing for releasably securing a striker in a slot; a catch mounted to the housing for releasably securing a secondary striker; and a linkage connecting the catch to the ratchet; wherein the ratchet and the catch move in tandem with one another via the linkage.

The present invention discloses a door lock structure for a pet cage. The door lock structure comprises a cage body on which at least one entrance and exit and a cage door matched with the entrance and exit are arranged. A plurality of pivot rings is arranged on one side of the cage door, sleeves a door frame on the edge of the entrance and is rotatable about the door frame. At least two limit sliding rods which are parallel to each other are arranged on the cage door, and a lock that is slidable on the limit sliding rods is installed on the limit sliding rods. The lock comprises a traveling mechanism that clamps the limit sliding rods, and a plurality of tension springs is installed on one side of the traveling mechanism close to the door frame. A plurality of lock bolt assemblies that moves synchronously with the traveling mechanism is also arranged on the traveling mechanism, and the lock bolt assemblies are matched with and locked with lock hole mechanisms provided on the corresponding door frame. The door lock structure is simple and exquisite in structure and design. Through the joint action of the traveling mechanism, the lock bolts and the tension springs, on the one hand, a plurality of lock bolts can be controlled at the same time; on the other hand, a plurality of parts of the cage door can be locked. The door block structure is simple and reliable and is easy to operate.

A lockout system includes a hasp assembly and a plurality of tags. The hasp assembly has a back plate defining slots each sized and shaped to receive a tag. The back plate and tags each have openings that align when a tag is received in a slot. A first hasp portion has a first loop portion and a second hasp portion has a second loop portion. The first and second hasp portions are rotatable with respect to one another such that moving the lockout system has both an unlocked position and a locked position associated with an open position and a closed position. In the closed position, the first and second hasp portions complete and define a closed loop, where one or more tags can be installed in slots preventing further movement from the closed position.

A lock release mechanism is disclosed. The lock release mechanism comprises a chassis adapted to receive a first lock comprising a first bolt and a second lock comprising a second bolt, the first and second lock distanced from each other, a linkage mechanism, a connector, a drive mechanism and a lever. The linkage mechanism comprises at least one arm in operative connection with at least one of the first and second lock. The connector has a first position in which the linkage mechanism is engaged and a second position in which the linkage mechanism is disengaged. The drive mechanism is operable to move the connector between the first and second positions. When the connector is in the first position, rotation of the lever causes unitary movement of the first and second bolts, and when the connector is in the second position, rotation of the lever causes movement of the second but not the first bolt.

A door lock device and a door lock having the same, wherein the door lock device includes: a switch mechanism capable of being operatively switched from a first position to a second position or a third position; an oblique tongue mechanism, including an oblique tongue body and an oblique tongue drive assembly, the oblique tongue drive assembly being connected to the switch mechanism, wherein, when the switch mechanism is in the first position, the oblique tongue body is in an extended state, and when the switch mechanism is switched from the first position to the second position or the third position, the switch mechanism drives the oblique tongue drive assembly, to drive the oblique tongue body to be in a retracted state; a deadbolt mechanism, including a deadbolt body and a deadbolt drive assembly; and a linkage mechanism connecting the switch mechanism and the tongue drive assembly. The door lock device can meet the demand, so that when the user uses a smart electronic lock, the deadbolt lock body can be maintained, thereby improving the safety factor and user experience.

A system for monitoring the state of a hook-keeper unit of an aeronautical structure. The hook-keeper unit is movable between a latched state and in a non-latched state, a mechanical warning element is movable between an exposed state and an unexposed state, and a connecting mechanism comprises a first end coupled to the hook-keeper unit, and a second end coupled to the mechanical warning element. The connecting mechanism is configured to automatically transmit the state of the hook-keeper unit to the mechanical warning element. The hook-keeper unit and the mechanical warning element are coupled between them by the connecting mechanism in an automatic bijective relationship, so that when the hook-keeper unit is in the latched state, the mechanical warning element is automatically in the unexposed state, and when the hook-keeper unit is in the non-latched state, the mechanical warning element is automatically in the exposed state.

An attack, ballistic and blast resistant door that includes integral concealed mortised four bolt-strike locking assemblies where the bolts are retracted with one hand operation for opening the door and are automatically extended for locking the door with closure of the door. The door has a door frame with four adjustable concealed striker receivers within the door frame. The door has four interconnected concealed mortised bolt lock assemblies, each with a biased bolt, wherein one of the bolt lock assemblies has an engageable brake to hold all four interconnected biased bolts in retraction when the door is opened after a handle interconnected with the four biased blots is moved to a door open position. A roller assembly is provided in the one bolt lock assembly biased to extend and move out from the door when the door is opened and releases the brake and allows the biased bolts to extend and move into the strike receivers when the extended roller assembly is moved inwardly toward the door. A manually adjustable ramp is on a strike plate cover over the strike receiver opposite of the one bolt lock assembly with the engageable brake. The ramp adjustably engages the roller assembly to further move away from or toward the door to adjustably release the brake.