Urethral catheterization bag fixing device

The utility model relates to the field of medical instruments. The urethral catheterization bag fixing device comprises a base, including support mechanism, a placing frame for placing a urinary catheterization bag is arranged on the supporting mechanism; a sliding plate is vertically connected to the placing frame in a sliding manner; a tension spring is fixedly connected between the sliding plate and the placing frame; one end of the sliding plate is fixedly connected with a first rack; the first rack is engaged with a first gear; the first gear is coaxially connected with a first rotating rod, the first rotating rod is in threaded connection with a first vertical plate, an air box is arranged at the bottom of the containing frame, a piston plate is horizontally and slidably connected into the air box, a supporting rod is arranged between the first vertical plate and the piston plate, and a whistle is fixedly connected to the end, away from the supporting rod, of the air box. By theadoption of the scheme, m