Multiple hanging chart replacing device with single side display

The utility model relates to a multiple hanging chart replacing device with single side display, essentially consisting of a machine frame, roller spindles of connecting bar, canvas belts and a drive mechanism. The roller spindles of connecting bar 2 is fixed on the machine frame1, and the roller spindles of connecting bar 2 are symmetrically and levelly arranged at intervals; the left and the right end of the roller spindles of connecting bar 2 are pasted with canvas belt 3, and the symmetrical canvas belts 3 are sticky with hanging chart; the symmetrically arranged roller spindles of connecting bar 2 has one roller spindle of connecting bar 2 to connect with the drive mechanism 4; the symmetrically arranged roller spindles of connecting bar are more than two groups, and the other groups of roller spindles of connecting bar are orderly inserted inside the roller spindle of connecting bar in the front; and the axial diameter of the roller spindle of connecting bar is less than that of the roller spindle in the front. The utility model reduces the area occupation for hanging the plurality of maps, for example, four maps(world, China, Hubei, Wuhan) with area of 108 cm*152cm only take an area of one fourth of the traditional hanging area, but the information makes no change. The utility model relates to a plurality of industries, being applicable for hanging all multiple hanging charts.