Housing used in monitor of industrial computer, monitor used in industrial computer, and industrial computer

A housing (10) used in a monitor (9) of an industrial computer (1), comprising:

• a basic section (18), on which the housing (10) is installed in a plate (13) or on the plate, wherein the basic section is adapted to be accommodated in a notch (12) of the plate (13);
• a frame section (23) connected to the basic section (18), wherein the frame section is adapted to be attached on the plate (13);
• at least one engagement element (11), adapted to optionally move from an unlocked position (EP) where the at least one engagement element (11) is detached from engagement with the plate (13) to a locked position (VP) where the at least one engagement element (11) is engaged with the plate (13) in a shape fitting manner;
• a spring element (29), which pretensions the at least one engagement element (11) in a direction toward the locked position (VP);
• a guide element (37), wherein the at least one engagement element (11) is linearly guided along the guide element;
• and
• a fixing element (40), configured to fix the at least one engagement element (11) at the unlocked position (EP) or the locked position (VP), wherein the fixing element (40) is releasable, so that the at least one engagement element (11) automatically moves from the unlocked position (EP) to the locked position (VP) by means of the spring element (29).