A hinge arrangement of a door for closing off an opening, such as a housing opening, a partition opening, a wall opening, or the like, having at least one pivot pin connected to the door and oriented vertically in the direction of the housing, wherein the pin can be engaged in a pivot pin receptacle on the housing. The pivot pin can be moved from a retracted position, in which the pivot pin is not engaged in the pivot pin receptacle, by vertical displacement into an extended position in which the pivot pin is engaged in the pivot pin receptacle and is rotatably supported therein. A releasable, spring-loaded locking device acts on the pivot pin and holds the pivot pin in the retracted position.