摘要:
A door frame including an inside steel panel having a first inner surface and a first outer surface, and a C-shaped section with a first portion of the C-shaped section extending parallel to the inner surface of the inside steel panel; an outside steel panel having a second inner surface and a second outer surface, and a U-shaped section with a second portion of the C-shaped section extending perpendicular to the second inner surface of the outside steel panel; a first insulating material interposed between the first portion of the C-shaped section of the inside steel panel and the second inner surface of the outside steel panel to thermally isolate the inside steel panel and the outside steel panel from each other, and said inside steel panel and outside steel panel being secured together to form a thermal break system.
摘要:
An electromagnetic shielding lock box comprises an openable and closable box body. The box body is defined an accommodating groove, made by electromagnetic shielding materials, and has a lock unit and a hooking member. The box body is closed for receiving at least one key while the lock unit is in a locked status and for shielding the transmission of at least one electromagnetic wave signal due to the electromagnetic shielding materials. The lock unit is further limited the hooking member to be locked to the box body. The box body is opened for taking the at least one key out while the lock unit is in an unlocked status to unlock the hooking member from the box body.
摘要:
An apparatus and method for releasably mounting access control components for a door lock to a door. A base element is adapted to be mounted to the door. A first wire connector element is mounted to the base element. A mounting element with combustible material attached is provided. A second wire connector element is mounted to the mounting element, and the second wire connector element is releasably connected to the first wire connector element to mount the mounting element to the base element. A spring is provided, and a retainer holds the spring in a loaded state, but in a fire event the retainer may melt, allowing the spring to apply force to the mounting element. Alternatively, an expanding material may apply the force. The force causes the wire connector elements to disconnect and allow the mounting element to separate from the base element.
摘要:
A walk-in freezer door system has a doorjamb with sheets of metal covering a body of thermal insulation. A door is mounted to the doorjamb. A deadbolt housing is mounted to the outside of the doorjamb with a deadbolt mounted for reciprocal movement within the housing between a door locked and a door unlocked position. A handle is rotatably positioned inside of the doorjamb from which a shaft extends into the deadbolt housing and into operative association with the deadbolt. A longitudinal portion of the handle shaft is made of a low thermal conductive plastic. A keeper is mounted to the door in a position to receive the deadbolt with the door located within the doorjamb.
摘要:
A tubular lock assembly which is to be located within a suitable thru bore in a door comprising: a pair of rose liner assemblies each including a rose liner, a collar selectively sized to effectively close the thru bore of the door, and means for securing the collar on the rose liner. Means for securing the rose liner assemblies together on either side of the door with the collars effectively closing the door thru bore, the securing means including a screw interconnecting the collars.
摘要:
A self-locking lock assembly for a cabinet or locker door includes a rotary operating member (25) having a head (26) adapted to be operated from the exterior of the door, and an inner bolt (31) provided with a rib (36) inclined with respect to the axis of said operating member so that its cooperation with a flange (14) of a door opening (3) causes it to rotate while compressing a return spring (41) whenever the door is manually pushed. The lock assembly can advantageously be used in cabinets or lockers the doors of which must be opened only by safety personnel, but may be closed by maintenance personnel.
摘要:
A door assembly providing a door frame including an inside steel panel having an inner surface and an outer surface, and a C-shaped section extending about a periphery thereof with a portion of the C-shaped section extending in part parallel to the inner surface of the inside steel panel; an outside steel panel having an inner surface and an outer surface, and a C-shaped section extending about a periphery thereof with a portion of the C-shaped section extending in part parallel to the inner surface of the outside steel panel; an insulating material interposed between respective C-shaped sections of the inside steel panel and the outside steel panel to thermally isolate the inside steel panel and the outside steel panel from each other, and said inside steel panel and outside steel panel being secured together at respective C-shaped sections to form the thermal break system.
摘要:
A release mechanism is actuated by the heat of a fire to electrically and mechanically disconnect electrical wiring from an electronic lock having a plastic housing. The electronic lock is mounted on a fire door and as it is heated by a fire on the opposite side of the fire door, mounts that hold the lock melt, releasing the electronic lock to drop away from the fire door and prevent ignition of the plastic housing. The release mechanism may use shape memory alloy wire to contract and disconnect a ribbon cable. Solder connectors may also be used to disconnect wires. Intumescent material that expands when heated is used to drive the lock mechanism away from the fire door and insulation is used to control the timing of melting.
摘要:
A lock assembly includes an exterior lockset that includes an exterior operator handle. An interior lockset includes an interior operator assembly and a control electronics module. An outer spindle is operatively coupled to a latch assembly and is drivably coupled to the interior operator assembly. A locking mechanism is operatively coupled to a drive assembly, and includes a coupling mechanism and a locking spindle assembly. The coupling mechanism is configured to selectively couple the exterior operator handle to the outer spindle. The locking spindle assembly is configured to operate the coupling mechanism to transition from a locked condition to an unlocked condition by an actuation of the drive assembly. A lock position sensor is located in the interior lockset and is communicatively coupled to the control electronics module. The lock position sensor is configured to sense whether the coupling mechanism is in the locked condition or the unlocked condition.