Box structure building partition

A box structure building partition comprising

• a box designed for mounting in a building partition,
• a closing hatch articulated relative to the box,
• wherein the box structure comprises a closing hatch locking mechanism in the box and the closing hatch comprises a bracket in a closing hatch socket for unlocking the closing hatch locking mechanism, wherein the bracket assumes first and second extreme positions in the closing hatch socket, wherein the bracket in the first extreme position is retracted into the closing hatch socket and the closing hatch locking mechanism is locked and in the second extreme position, the bracket is screwed out from the closing hatch socket and the closing hatch locking mechanism is unlocked and the bracket comprises a coupling for a coupling element, accessible for a user when the bracket is not in its first extreme position;
• wherein movement of the bracket between the first and second extreme positions takes place by screwing the bracket in or out of the closing hatch socket using the coupling element;
• and
• wherein at least an external surface part of the bracket and a closing hatch socket surface are threaded, wherein the closing hatch socket surface holds the bracket.