The utility model relates to a but independent assortment salvage turnover case belongs to electric power tool technical field. Including at least two MODULE CASE, it holds the cavity to be equipped with in MODULE CASE's the box, one side of box is equipped with a pair of draw -in groove, the opposite side of box is equipped with with a pair of a pair of bead of draw -in groove looks adaptation isadjacent MODULE CASE is through a pair of draw -in groove and the butt joint of bead block form the combination case. It is formed by the combination of the MODULE CASE more than two or two butt joint to salvage the turnover case, convenient and fast realizes the independent assortment butt joint between the MODULE CASE, inside lining in every MODULE CASE can have different device constant head tanks according to different instrument device shapes, the multiple modules case can carry out categorised the accomodating of modular to the instrument device and place, not only conveniently get andput, the efficiency of salvage is improved, and hold the cavity in each MODULE CASE of make full use of, reduce to make up the volume of case, make the combination case lighter, therefore, the clotheshanger is strong in practicability.