Portable detachable tool box and assembly process thereof

1 . 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.

2 . The portable detachable tool box of claim 1 , wherein the drawer unit comprises a guide rail frame assembly and a drawer seat detachably provided on the guide rail frame assembly; the guide rail frame assembly comprises a guide rail main frame, a guide rail auxiliary frame detachably provided on the guide rail main frame, and a guide rail provided between the guide rail main frame and the guide rail auxiliary frame; the guide rail main frame is slidably matched in the drawer guide groove, and the guide rail auxiliary frame is detachably connected to the drawer seat.

3 . The portable detachable tool box of claim 2 , wherein the drawer seat comprises a drawer seat plate and a handle groove provided on one side of the drawer seat plate; the drawer seat plate is bent and is cooperated with the guide rail auxiliary frame to form a U-shaped storage cavity.

4 . The portable detachable tool box of claim 1 , wherein, and the box bottom plate is also provided with inserting holes for the box back plate to be inserted into.

5 . The portable detachable tool box of claim 1 , wherein the box back plate comprises two back plate pieces abutting against each other.

6 . The portable detachable tool box of claim 2 , wherein the guide rail main frame is formed by bending a guide rail main plate with four sides that can be bent toward one side of the box side plate to form a support frame.

7 . The portable detachable tool box of claim 2 , wherein the guide rail auxiliary frame is formed by bending a guide rail auxiliary plate with four sides that can be bent toward one side of the drawer cavity to form a mounting frame.

8 . The portable detachable tool box of claim 1 , wherein the box side plate is detachably provided with a push-pull handrail.

9 . An assembly process of the portable detachable tool box of claim 1 , including the following steps:

S 1 : first, fitting the two box side plates to the box bottom plate, and fixing the box side plates and box bottom plate through screw holes at the bottom;

S 2 : then, stacking the plurality of drawer units in sequence from top to bottom through the drawer guide grooves of the box side plates;

S 3 : then, inserting the two back plate pieces into the box bottom plate through the inserting holes;

S 4 : finally, placing the box top plate on the drawer units through the drawer guide grooves of the box side plates, and fixing the box top plate, the box side plates, and the box back plate through screw holes on the top.