Construction cost drawing storage device

The utility model discloses a construction cost drawing storage device which comprises a storage box, four sets of self-locking universal wheels are evenly arranged at the lower end of the storage box, one side of the storage box is movably connected with a box door, a sliding rail is arranged in the storage box, a storage box is arranged in the sliding rail, a plurality of sets of containing assemblies are evenly arranged in the storage box, and a display board is arranged at the upper end of the storage box. A clamping assembly is arranged at one end of the display board, a fixing assembly is arranged at the other end of the display board, sliding grooves are formed in the two sides of the display board respectively, smoothing assemblies are clamped in the sliding grooves, drawings are rolled into the storage barrels by rotating the rotating shafts, corners of the drawings are prevented from being wrinkled, marking is conducted through a label box on the dustproof cover, the drawings can be conveniently and