Tool box for building engineering cost

The utility model relates to the technical field of construction engineering cost, and discloses a tool box for construction engineering cost, which comprises a tool box body and a damping mechanism, the damping mechanism comprises a carrying handle, a placing box, a sliding block, a sliding groove plate, a first buffer spring, a placing plate, a fixing block, a fixing rod, a telescopic spring, a hinge seat, a linkage rod, a moving block, a concentric-square-shaped groove plate and a second buffer spring, the top of the tool box body and the carrying handle are fixedly installed, and the placing box is arranged in the tool box body; by arranging a sliding block, a sliding groove plate, a first buffering spring hinge seat, a linkage rod, a moving block, a concentric-square-shaped groove plate and a second buffering spring, the buffering and damping effects are achieved, and the problems that an existing tool box for the construction engineering cost does not have the damping function in the using process, prec