The present invention discloses a thermal box comprising a body; the body comprises a box body, a box cover and locking devices provided on a front side and a rear side of the body respectively; the snap fastening seat is fixed on the box body; two extended lugs are provided on the box cover; the snap fastening seat is provided with a pivot seat between the two extended lugs; two mounting lugs are provided on a top side of the snap fastening member; the two extended lugs are positioned between the two mounting lugs and interconnected thereto via a rotating shaft to rotate inwards and outwards; a fastening structure which fastens by pressing inwards and unfastens by pulling outwards is provided on the inner side of the snap fastening member and the snap fastening seat.

A latch arrangement for fastening a panel of a door or a window to a frame element, the panel including a depression is provided. The latch arrangement includes a locking element pivotally mounted an the frame element and displaceable between a locked position in which the locking element is engaged with the depression of the panel locking thereby the panel to the frame element, and an unlocked position in which the locking element is disengaged from the depression of the panel unlocking thereby the panel from the frame element, a stop latch selectively deployable to secure the locking element in the locked position, precluding thereby displacement of the locking element to the unlocked position; and an actuating mechanism configured to selectively pivot the locking element away from the depression to the unlocked position.

A latch arrangement for fastening a panel of a door or a window to a frame element, the panel including a depression is provided. The latch arrangement includes a locking element pivotally mounted on the frame element and displaceable between a locked position in which the locking element is engaged with the depression of the panel locking thereby the panel to the frame element, and an unlocked position in which the locking element is disengaged from the depression of the panel unlocking thereby the panel from the frame element, a stop latch selectively deployable to secure the locking element in the locked position, precluding thereby displacement of the locking element to the unlocked position; and an actuating mechanism configured to selectively pivot the locking element away from the depression to the unlocked position.

A lock assembly for a door includes a lock body having a housing with at least one deadbolt supported in the housing for movement between a retracted position and an extended position and biased toward the extended position by a spring, and a trigger mechanism mounted on the door separate from the lock body for engagement with a door jamb upon closure of the door, said trigger mechanism being adapted to hold the at least one deadbolt in the retracted position when the door is open in opposition to a spring bias, and to permit movement of the at least one deadbolt to the extended position upon engagement of the trigger mechanism with the doorjamb.

A lock case interlockable with an anti-theft latch is mounted on a door. The lock case includes a latch coupled with a latch hole in a door frame for retaining the door in a closed position. The anti-theft latch can be operated to engage with the door frame. When the latch is picked, the anti-theft latch still remains engaged with the door frame to prevent opening of the door. When normally operated, an inner operating device or an outer operating device can be operated to disengage the latch from the latch hole while disengaging the anti-theft latch from the door frame, permitting easy, convenient opening of the door.

The present invention discloses a thermal box comprising a body; the body comprises a box body, a box cover and locking devices provided on a front side and a rear side of the body respectively; the snap fastening seat is fixed on the box body; two extended lugs are provided on the box cover; the snap fastening seat is provided with a pivot seat between the two extended lugs; two mounting lugs are provided on a top side of the snap fastening member; the two extended lugs are positioned between the two mounting lugs and interconnected thereto via a rotating shaft to rotate inwards and outwards; a fastening structure which fastens by pressing inwards and unfastens by pulling outwards is provided on the inner side of the snap fastening member and the snap fastening seat.

A latch mechanism having an adjustment mechanism that adjusts the distance to which a latch bolt extends into a mating recess. The adjustment mechanism may include a driver component and a driven component. Rotation of the driver component about a first axis may displace the driven component, thereby causing the position of the latch bolt to be adjusted along a second axis that is non-parallel to the first axis. According to certain embodiments, the first axis is perpendicular to the second axis. The latch mechanism may also include an inner housing that is displaced as the latch bolt is extended into, and retracted from, a mating recess in an adjacent structure. Further, the position of the inner housing may remain generally static as the position of the latch bolt is adjusted along the second axis via operation of the adjustment mechanism.

A latch arrangement for fastening a panel of a door or a window to a frame element, the panel including a depression is provided. The latch arrangement includes a locking element pivotally mounted on the frame element and displaceable between a locked position in which the locking element is engaged with the depression of the panel locking thereby the panel to the frame element, and an unlocked position in which the locking element is disengaged from the depression of the panel unlocking thereby the panel from the frame element, a stop latch selectively deployable to secure the locking element in the locked position, precluding thereby displacement of the locking element to the unlocked position; and an actuating mechanism configured to selectively pivot the locking element away from the depression to the unlocked position.

A latch mechanism having an adjustment mechanism that adjusts the distance to which a latch bolt extends into a mating recess. The adjustment mechanism may include a driver component and a driven component. Rotation of the driver component about a first axis may displace the driven component, thereby causing the position of the latch bolt to be adjusted along a second axis that is non-parallel to the first axis. According to certain embodiments, the first axis is perpendicular to the second axis. The latch mechanism may also include an inner housing that is displaced as the latch bolt is extended into, and retracted from, a mating recess in an adjacent structure. Further, the position of the inner housing may remain generally static as the position of the latch bolt is adjusted along the second axis via operation of the adjustment mechanism.

An apparatus for locking a panel to a strike jamb includes a synchronous displacement mechanism associated with a locking element (108) which is responsive to part of a closing motion of a panel (104) from an open position towards a closed position to initiate a motion of locking element (108) towards the locked position during the closing motion of the panel prior to the panel reaching its closed position. The synchronous displacement mechanism preferably has a deadlock state when the locking element is in the locked position which prevents displacement of the locking element towards the unlocked position.