Quick dismounting device for dismounting-proof screw

The utility model discloses an anti-dismantling screw fast dismantling device which comprises a base rod and a wrench cylinder, one end of the base rod is fixedly connected with a regular hexagonal prism nut shaft comb, the diameter of a regular hexagonal prism nut is larger than that of the base rod, each vertical side face of the regular hexagonal prism nut is connected with a strip-shaped reedin a welded mode, and the width of the reeds is not larger than that of the vertical side faces. According to the arrangement mode, the other ends of the reeds are far away from the base rod and are scattered in a radial mode, clamping blocks are welded to the faces, facing the axis of the base rod, of the reeds, and when the side edges of the adjacent reeds get close, regular hexagonal clamping openings matched with the vertical side faces of the nuts are defined by the inner surfaces of the clamping blocks; the wrench cylinder is sleeved on the base rod and can slide along the axial direction of the base rod, the wr