A floor polishing device in which the support frame is mounted by means of a bottom tether (12) a wall arm (5),where the cylindrical arm (5) is connected on one side by a clutch (13) with the angular gear (7),and is also connected by a hook (22) to the fitter (6),where the fitter (6) is connected by a top tether (11) with a support frame,and in addition, the angular gearbox (7) is mounted on the inner plates, with sliding bearings (15) mounted on the vertical guides (14) attached to the outer plates (16),where the outer plates (16) are attached to the support frame.