Convenient-to-use drawing device for mechanical design

The utility model discloses a mechanical design drawing device convenient to use, and relates to the technical field of mechanical drawing tools. The device comprises a fixed base, two supporting bottom columns are fixed to the upper end of the fixed base, a supporting rotating shaft is rotationally connected between the upper ends of the two supporting bottom columns, a connecting support is fixed to the position, located between the two supporting bottom columns, of the outer side of the supporting rotating shaft, and support connecting shafts are fixed to the two ends of the upper end of the connecting support. Two flat plate bases are arranged between the two support connecting shafts, and a drawing flat plate is fixed to the upper ends of the two flat plate bases. Through the structural cooperation among the supporting bottom column, the supporting rotating shaft, the first rubber ball, the support connecting shaft, the flat plate base and the second rubber ball, the height position of the drawing flat p