Display board special for engineering cost

The utility model discloses a special display board for engineering cost. Including a base and a frame, sleeves are symmetrically and fixedly connected to the left and right ends of the upper surfaceof the base; a threaded rod is rotationally connected between the upper side wall and the lower side wall in the left sleeve. The threaded rod is in threaded connection with a first moving block; a sliding rod is fixedly connected between the upper side wall and the lower side wall in the right sleeve. A second moving block is slidably connected to the sliding rod, a supporting plate is fixedly connected between the first moving block and the second moving block, a frame is fixedly connected to the upper surface of the supporting plate, overturning plates are rotatably connected to the left side and the right side of the frame through hinges correspondingly, a first white board is fixedly bonded to the front side face of the frame, and a second white board is fixedly bonded to the front side faces of the overturni