Portable detachable tool box and assembly process thereof

A portable detachable tool box, comprising a box assembly and a drawer assembly, wherein the box assembly comprises a box bottom plate, a box side plate detachably provided on both sides of the box bottom plate, a box back plate detachably plugged into the box bottom plate, and a box top plate detachably matched to tops of the box side plates and the box back plate;

• a drawer cavity is formed between the box bottom plate, the box side plates, the box back plate, and the box top plate;
• the box side plates are bent toward an inner side of the drawer cavity and are formed with drawer guide grooves;
• the drawer assembly comprises a plurality of detachable drawer units, which are stacked in sequence from top to bottom in the drawer cavity through the drawer guide grooves;
• the box top plate is detachably connected with a drawer stopper rod for limiting the drawer unit, and one end of the drawer stopper rod is buckled on the box bottom plate.