Shock-absorbing packing box

1. A shock-absorbing packing box formed by folding shock-absorbing packaging material, comprising:

a shock-absorbing packing material comprising a plurality of air cells,

wherein the shock-absorbing packing material comprises an upper outer shell and a lower outer shell which are partially fused to each other to form a plurality of first air cells at a central portion of the outer shells in a longitudinal direction relative to the outer shells, to form a plurality of second air cells spaced apart from each other by a certain distance at both sides of the central portion of the outer shells in the longitudinal direction relative to the outer shells, and to form an air injection path configured to inject air into the first and second air cells at a front end of the outer shells;

and an upper inner shell and a lower inner shell which are interposed between the upper outer shell and the lower outer shell and are partially fused to each other to form air inflow paths configured to allow the first air cells and the second air cells to communicate with each other,

wherein the upper outer shell and the lower outer shell are partially fused to form longitudinal fused portions at the central portion of the outer shells, to respectively form transverse fused portions at a front end and a rear end of the longitudinal fused portions, and to form the plurality of first air cells which extend in the lengthwise longitudinal direction relative to the outer shells,

auxiliary longitudinal fused portions formed between an upper end and a middle portion of each of both sides of the outer shells and between the middle portion and a lower end of each of the both sides of the outer shells in the longitudinal direction relative to the other shells,

auxiliary transverse fused portions formed at a front end and a rear end of the auxiliary longitudinal fused portions to form a plurality of second air cells spaced apart from each other in the longitudinal direction of the outer shells,

air injection guide paths, configured to allow the air inflow paths formed in the upper and lower inner shells and the second air cells formed between the upper end and the middle portion of the outer shells to communicate with each other, are formed at upper ends of the both sides of the upper and lower outer shells, and

air injection guide paths, configured to allow the second air cells formed between the upper end and the middle portions of the outer shells and the second air cells formed between the middle portion and the lower end of the outer shells, are formed at the middle portions of the both sides of the upper and lower outer shells to communicate with each other,

wherein the shock-absorbing packing material is foldable into a shape in which a front end and a rear end thereof come into contact with each other to enable both side edges of the folded shock-absorbing packing material to be fused to each other, and then enable air to be injected through the air injection path to form a front surface, a real surface, a bottom surface, upper covers of a packaging box through the plurality of first air cells, and concurrently enable both side portions, which are not portions of the outer shells comprising the second air cells of the outer shells to be tucked in the box to form both side walls of the box through the plurality of second air cells and to form a box shape.

2. The shock-absorbing packing box of claim 1 , wherein in the shock-absorbing packaging materials a plurality of point fused portions are formed on the plurality of first air cells to fuse the upper outer shell and the lower outer shell such that the plurality of first air cells are folded to form the front surface, the rear surface, the bottom surface, and the upper covers of the packaging box.

3. The shock-absorbing packing box of claim 1 , wherein in the shock-absorbing packaging material a pair of the upper covers are formed at the front end and the rear end of the shock-absorbing packaging material such that opposite ends of the covers overlap each other to cover an opened upper portion of the box.

4. The shock-absorbing packing box of claim 1 , wherein a single-layered auxiliary inner shell is formed between the upper outer shell and the lower outer shell forming the first and second air cells so as to be alternately and partially fused with the upper outer shell and the lower outer shell, so that the first air cells and the second air cells formed between the upper outer shell and the lower outer shell are formed as a plurality of first air cells and a plurality of second air cells formed in a two-layered structure, which alternately stacked with each other.

5. The shock-absorbing packing box of claim 4 , wherein a plurality of air flow holes are formed in the auxiliary inner shell such that a pair of air cells disposed in an upper layer and a pair of air cells disposed in a lower layer of the plurality of first air cells and the plurality of second air cells each formed in a two-layered structure communicate with each other.

6. The shock-absorbing packing box of claim 1 , wherein at least two-layered auxiliary inner shell is formed between the upper outer shell and the lower outer shell forming the first and second air cells so as to be alternately and partially fused with the upper outer shell and the lower outer shell, so that the first air cells and the second air cells formed between the upper outer shell and the lower outer shell are formed as a plurality of first air cells and a plurality of second air cells formed in at least three-layered structure, which are alternately stacked with each other.