Support part, housing structure using the same, and item

A support part that supports a lower portion of a housing upon installation of an item on an installation surface, includes: a leg part including an outer leg portion, an inner leg portion, and a connecting portion, the outer leg portion being provided so as to come into contact with the installation surface and extending from a gap between the lower portion of the housing and the installation surface so as to protrude outward of an outer side surface of the housing, the inner leg portion being disposed above the outer leg portion and extending inward of the outer side surface of the housing, the connecting portion connecting the outer leg portion and the inner leg portion inside the outer side surface of the housing; a raising/lowering section that is provided at the lower portion of the housing and that supports the inner leg portion of the leg part so as to raise and lower the inner leg portion; and an operation section that is provided so that a portion of the operation section protrudes outward of an outer side surface of the connecting portion of the leg part and that operates a raising/lowering movement of the raising/lowering section.