Portable constructional engineering quality detection tool box

The utility model discloses a portable constructional engineering quality detection tool box. The box comprises a box body and a box cover, wherein the box body comprises a frame body I and a frame body II; a second frame body is slidably connected into the first frame body. The lower end of the frame I is connected with a baseplate; a box cover is hinged to the upper end of the second frame. A handle is arranged on the box cover; a transmission rod is rotationally connected into the bottom plate; a gear I is arranged on the transmission rod; threaded rods are rotationally connected to the left and right sides of the upper end face of the bottom plate. The lower end of the threaded rod penetrates the upper end surface of the baseplate; gears II are arranged at the lower ends of the threaded rods; the left end of the transmission rod is exposed out of the bottom plate, a pulley is arranged on the left side face of the bottom plate, connecting pieces are arranged on the right side face of the bottom plate, a ro