One-piece stretchable, suspended and fastened corrugated packaging box

Abstract

The present invention discloses an integrally formed, stretchable, suspended and fastened corrugated packaging box, comprising: a left box body, a right box body, a connecting part and an elastic film, wherein the left box body, the right box body and the connecting part are integrally folded and formed by die-cutting and creasing corrugated paperboard, the inner cavity opening of the left box body and the inner cavity opening of the right box body are arranged opposite to each other, and the upper side wall of the left box body and the upper side wall of the right box body are connected into one body through the two ends of the connecting part, and the two ends of the elastic film are fixed to the connecting part by an adhesive. The present invention uses the connecting part arranged on the left and right boxes to fix the packaged items in the elastic film of the connecting part, and the connecting part is folded through a fold line and then shrinks in the inner cavities of the left and right boxes, so that the packaged items are suspended and fixed. When taking the packaged items, as long as the left and right boxes are pulled apart, the packaged items can be automatically taken out of the packaging box body as the connecting part is stretched, thereby eliminating many steps of unpacking and taking, and being more convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging, and in particular relates to an integrally formed, stretchable, suspended and fastened corrugated packaging box. Background Art

[0002] Corrugated paper packaging refers to packaging boxes formed by folding and gluing corrugated paperboard, which has many advantages such as environmental protection, easy recycling, and easy processing and molding. When corrugated paperboard is combined with high-elastic film, a packaging structure with characteristics such as suspended fastening and suspended cushioning can be realized, which reduces the use of non-degradable cushioning materials such as EPE and EPS, further improves the cushioning performance and environmental protection of corrugated paper packaging, and reduces the overall volume, weight and storage space of the packaging.

[0003] The suspended and fastened corrugated packaging boxes in the prior art mainly adopt a packaging method of a traditional corrugated cardboard outer box plus a paper film combined with a suspended and fastened inner liner. Its main shortcomings are: the outer box and the inner liner need to be produced and formed separately, which leads to increased processes and extended delivery time, and increased cardboard waste; the outer box mainly adopts a swing-lid opening type, and when packing and taking out, the outer box needs to be opened first to put in or take out the packaged objects in the liner, which increases inconvenience. Summary of the invention

[0004] The purpose of the present invention is to provide an integrally formed stretchable suspended fastened corrugated packaging box to solve the above-mentioned deficiencies of the prior art. To achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0005] An integrally formed stretchable suspended fastened corrugated packaging box comprises: a left box body, a right box body, a connecting part and an elastic film. The left box body, the right box body and the connecting part are integrally folded and formed by die-cutting and creasing corrugated paperboard. The inner cavity opening of the left box body and the inner cavity opening of the right box body are arranged opposite to each other, and the left box body side wall and the right box body side wall are connected into one through the two ends of the connecting part, and the two ends of the elastic film are fixed to the connecting part by an adhesive.

[0006] Furthermore, the stretchable suspended fastened corrugated packaging box also includes an annular envelope arranged on the outside of the box body.

[0007] Furthermore, the left box body and the right box body have the same structure, and are both composed of side walls and connecting fold lines between the side walls. The side walls include first to fifth side walls, and the first to third side walls are connected in sequence through the fold lines on the sides. The fourth side wall and the fifth side wall are respectively connected to the two ends of the third side wall through the fold lines. The first side wall is also provided with a first folding piece and a second folding piece at both ends, and the fourth side wall is provided with a third folding piece and a fourth folding piece. The end where the third folding piece is connected to the fourth side wall is also provided with a first opening, and the fourth folding piece is also provided with a first protrusion. The fifth side wall is provided with a fifth folding piece and a sixth folding piece. The end where the fifth folding piece is connected to the fifth side wall is also provided with a second opening, and the sixth folding piece is also provided with a second protrusion.

[0008] Furthermore, the connecting portion is composed of a connecting bridge and a foldable first swing and a second swing arranged on the left and right sides of the connecting bridge. The first swing is connected to the third side wall of the left box through the fold line, and the second swing is connected to the third side wall of the right box through the fold line. When the left box and the right box are closed, the entire connecting portion is folded by the fold line between the third side wall of the left box and the first swing, between the third side wall of the right box and the second swing, and between the first swing and the second swing and the connecting bridge. Conversely, when the left box and the right box are pulled apart, the connecting portion is stretched open and displayed outside the inner cavity of the left box and the right box.

[0009] Furthermore, a foldable seventh folding piece and an eighth folding piece are provided at both ends of the connecting bridge, and both ends of the elastic film are fixed to the seventh folding piece and the eighth folding piece at both ends of the connecting bridge by adhesive.

[0010] Furthermore, a first folding portion may be provided between the first swing and the third side wall of the left box body, and a second folding portion may be provided between the second swing and the third side wall of the right box body. The first folding portion is fitted with the third side wall of the left box body after being folded along the fold line, and the second folding portion is fitted with the third side wall of the right box body after being folded along the fold line.

[0011] Furthermore, the corrugated packaging box is also provided with an envelope, which surrounds the left and right box bodies of the corrugated packaging box and is used to fix the left and right box bodies to maintain a closed state.

[0012] The beneficial effects of the present invention are as follows: the present invention connects the outer box and the inner lining into a whole through an integrated molding process, thereby reducing production processes, shortening delivery time, and reducing cardboard loss. In particular, through the connecting parts set on the left and right box bodies, after the packaged items are fixed in the elastic film of the connecting parts, the connecting parts are folded through the fold lines and then contracted in the inner cavities of the left and right boxes, so that the packaged items are suspended and fixed. When taking the packaged items, just pull open the left and right box bodies, and the packaged items can be automatically taken out of the packaging box body as the connecting parts are stretched, which saves a lot of unpacking and taking steps and is more convenient. At the same time, through the design of the stretching structure, after the left and right box bodies of the packaging box are pulled open, the inner packaging is presented outside the packaging box, and the entire packaging box can be placed in the exhibition hall as a display stand, without the need to make additional display stands, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional effect diagram of the stretchable suspended fastened corrugated packaging box of the present invention after being folded.

[0014] Figure 2 This is a three-dimensional effect diagram of the stretchable suspended fastened corrugated packaging box of the present invention after stretching.

[0015] Figure 3 This is an expanded view of the planar structure of the stretchable suspended fastened corrugated packaging box according to the first embodiment of the present invention.

[0016] Figure 4 This is a structural schematic diagram of the packaging process of a stretchable, suspended, and fastened corrugated packaging box according to the first embodiment of the present invention.

[0017] Figure 5 This is a schematic diagram of main parameters for dimension design of a stretchable, suspended, fastened corrugated packaging box according to the first embodiment of the present invention.

[0018] Figure 6 This is an expanded view of the planar structure of the stretchable suspended fastened corrugated packaging box according to the second embodiment of the present invention.

[0019] Figure 7 This is a structural schematic diagram of the packaging process of a stretchable suspended fastened corrugated packaging box according to the second embodiment of the present invention.

[0020] Figure 8 This is a schematic diagram of main parameters for dimension design of a stretchable, suspended, fastened corrugated packaging box according to the second embodiment of the present invention.

[0021] In the figure:

[0022] 100. Packing box;

[0023] 1. left box body, 11. first side wall, 111. first folding piece, 112. second folding piece, 12. second side wall, 13. third side wall, 14. fourth side wall, 141. third folding piece, 1411. first opening, 142. fourth folding piece, 1421. first protruding portion, 15. fifth side wall, 151. fifth folding piece, 1511. second opening, 152. sixth folding piece, 1521. second protruding portion, 16. fold line, 17. first folding portion;

[0024] 2. right box body, 21. first side wall, 211. first folding piece, 212. second folding piece, 22. second side wall, 23. third side wall, 24. fourth side wall, 241. third folding piece, 2411. first opening, 242. fourth folding piece, 2421. first protruding portion, 25. fifth side wall, 251. fifth folding piece, 2511. second opening, 252. sixth folding piece, 2521. second protruding portion, 27. second folding portion;

[0025] 3. Connecting part, 31. Connecting bridge, 311. Seventh folding piece, 312. Eighth folding piece, 32. First swing, 33. Second swing;

[0026] 4. Elastic film; 5. Adhesive; 6. Articles. DETAILED DESCRIPTION

[0027] The accompanying drawings are only used for illustrative purposes and cannot be understood as limiting the present patent. In order to better illustrate the present embodiment, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances. The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Embodiment 1

[0029] like Figure 1-3 As shown, the one-piece stretched suspended fastened corrugated packaging box 100 of this embodiment includes: a left box body 1, a right box body 2, a connecting part 3 and an elastic film 4. The left box body 1, the right box body 2 and the connecting part 3 are formed by folding the corrugated cardboard into one piece after die-cutting and creasing. The inner cavity opening of the left box body 1 and the inner cavity opening of the right box body 2 are arranged opposite to each other, and the third side wall 13 of the left box body 1 and the third side wall 23 of the right box body 2 are connected into one piece through the two ends of the connecting part 3, and the two ends of the elastic film 4 are fixed to the seventh folding piece 311 and the eighth folding piece 312 at the two ends of the connecting bridge 31 of the connecting part 3 by adhesive 5.

[0030] Specifically, if Figure 3As shown, the left box body 1 and the right box body 2 constituting the stretchable suspended fastening corrugated packaging box 100 of the present invention have the same structure, and are both composed of side walls and connecting fold lines 16 between the side walls. The side walls include first side walls 11, 21, second side walls 12, 22, third side walls 13, 23, fourth side walls 14, 24, and fifth side walls 15, 25. The first side walls 11, 21, second side walls 12, 22, and third side walls 13, 23 are sequentially connected through the fold lines 16 on the sides. The fourth side walls 14, 24, and fifth side walls 15, 25 are respectively connected to the two ends of the third side walls 13, 23 through the fold lines 16. The first side walls 11, 21 are also provided with first folding sheets 111, 211 and second folding sheets 112, 213 at both ends. The fourth side wall 14, 24 is provided with a third folding piece 141, 241 and a fourth folding piece 142, 242, the third folding piece 141, 241 connected to the fourth side wall 14, 24 is further provided with a first opening 1411, 2411, the fourth folding piece 142, 242 is further provided with a first protrusion 1421, 2421, the fifth side wall 15, 25 is provided with a fifth folding piece 151, 251 and a sixth folding piece 152, 252, the fifth folding piece 151, 251 connected to the fifth side wall 15, 25 is further provided with a second opening 1511, 2511, the sixth folding piece 152, 252 is further provided with a second protrusion 1521, 2521.

[0031] The connecting portion 3 constituting the stretchable suspended fastened corrugated packaging box 100 of the present invention is composed of a connecting bridge 31 and a foldable first swing 32 and a second swing 33 arranged on the left and right sides of the connecting bridge 31. The first swing 32 is connected to the third side wall 13 of the left box body 1 through a fold line 16, and the second swing 33 is connected to the third side wall 23 of the right box body 2 through a fold line 16. When the left box body 1 and the right box body 2 are closed, the third side wall 13 of the left box body 1 and the first swing 32, the third side wall 23 of the right box body 2 and the second swing 33, and the first swing 32 and the second swing 33 and the connecting bridge 31 are folded through the fold line 16, so that the entire connecting portion 3 shrinks in the inner cavity of the left box body 1 and the right box body 2 to complete the packaging of the packaged article 6. On the contrary, when the left box body 1 and the right box body 2 are pulled apart, the connecting portion 3 is stretched open and displayed on the outside of the left box body 1 and the right box body 2, and the packaged article 6 at this time appears on the outside of the packaging box 100 of the present invention.

[0032] When in use, the fourth side wall 14 and the fifth side wall 15 of the left box body 1 are first folded vertically along the fold line 16 relative to the plane of the third side wall 13, and then the third folding piece 141, the fourth folding piece 142, the fifth folding piece 151, and the sixth folding piece 152 are folded along the fold line 16 respectively, and then the first side wall 11 and the second side wall 12 are folded along the fold line 16 so that the third folding piece 141 and the fifth folding piece 151 are located inside the second side wall 12, and the first folding piece 111 is inserted into the inner side of the fourth side wall 14, and the second folding piece 112 is inserted into the inner side of the fifth side wall 15 to form the box body prototype of the left box body 1, and then the fourth folding piece 142 and the sixth folding piece 152 are folded along the fold line 16 and inserted into the interior of the left box body 1, and the first protrusion 1421 and the second protrusion 1521 are respectively inserted into the first opening 1411 In the second opening 1511, the first folding piece 111 is clamped between the fourth side wall 14 and the fourth folding piece 142, and the second folding piece 112 is clamped between the fifth side wall 15 and the sixth folding piece 152, thereby completing the fixation of the side walls of the entire left box body 1, and then completing the fixation of the side walls of the entire right box body 2 in the same way. At this point, the entire packaging box 100 is assembled as a whole.

[0033] like Figure 4 As shown, when packaging the article 6, the elastic film 4 is pulled up, and the article 6 is placed in the middle of the connecting bridge 31, and then the seventh folding piece 311 and the eighth folding piece 312 at both ends of the connecting bridge 31 are folded toward the side of the connecting bridge 31 where the elastic film 4 is not attached until they are tightly attached. Under the action of the shrinkage elastic force of the elastic film 4, the article 6 is firmly fixed on the connecting bridge 31. When the left box body 1 and the right box body 2 are closed, the connecting bridge 31, the first swing 32 and the second swing 33 of the connecting part 3 are folded along the fold line 16, and move downward under the action of the gravity of the article 6, and finally shrink into the packaging box composed of the left box body 1 and the right box body 2, thereby completing the packaging of the article 6.

[0034] It should be noted that if Figure 5 As shown, when the width of the packaged article 6 is a, the height is b, and the length is c, and the thickness of the cardboard used is d, the width W of the connecting bridge 31 must at least satisfy W=a+2b. In order to ensure that the article 6 can be smoothly folded and retracted into the packaging box 100 along with the connection part 3 during the packaging process, the width L of the first swing 32 and the second swing 33 should satisfy:

[0035] In order to save the amount of cardboard, L takes the minimum value, that is:

[0036] Embodiment 2

[0037] like Figure 6As shown, this embodiment provides another integrally formed stretchable suspended fastened corrugated packaging box 100, the structure of which is substantially the same as that of the packaging box 100 of the first embodiment, and the main difference between the two is that:

[0038] A first folding portion 17 is added between the first swing 32 and the third side wall 13 of the left box 1, and a second folding portion 27 is added between the second swing 33 and the third side wall 23 of the right box 2. When in use, the first folding portion 17 of the left box 1 is first folded along the fold line 16 and then pressed against the third side wall 13, and then the left box 1 is assembled according to the folding organization method of the first embodiment. At this time, the first swing 32 is in the inner cavity of the left box 1. Similarly, the right box is folded and assembled in the same way, and the second swing 33 is also in the inner cavity of the right box 2.

[0039] like Figure 7 As shown, when packaging the article 6, the elastic film 4 is pulled up, and the article 6 is placed in the middle of the connecting bridge 31, and then the seventh folding piece 311 and the eighth folding piece 312 at both ends of the connecting bridge 31 are folded toward the side of the connecting bridge 31 where the elastic film 4 is not attached until they are tightly attached. Under the action of the shrinkage elastic force of the elastic film 4, the article 6 is firmly fixed on the connecting bridge 31. When the left box body 1 and the right box body 2 are closed, the connecting bridge 31, the first swing 32 and the second swing 33 of the connecting part 3 are folded along the fold line 16, and move downward under the action of the gravity of the article 6, and finally shrink into the packaging box composed of the left box body 1 and the right box body 2, thereby completing the packaging of the article 6.

[0040] It should be noted that if Figure 8 As shown, when the width of the packaged article 6 is a, the height is b, and the length is c, and the thickness of the cardboard used is d, the width W of the connecting bridge 31 must at least satisfy W=a+d, and the width of the first folding portion 17 and the second folding portion 27 should satisfy (a+d) / 2. In order to ensure that the article 6 can be smoothly retracted into the packaging box 100 with the folding of the connecting portion 3 during the packaging process, and can be smoothly taken out of the packaging box 100 with the stretching of the connecting portion 3, the height H of the first swing 32 and the second swing 33 should satisfy:

[0041] In order to save the amount of cardboard, H takes the minimum value, that is:

[0042] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An integrally formed, stretchable, suspended and fastened corrugated packaging box, characterized in that: It includes a left box body, a right box body, a connecting part, a cover and an elastic film, wherein: The left box body, the right box body and the connecting part are formed by die-cutting and creasing corrugated cardboard and then folding them into one piece; The left box inner cavity opening and the right box inner cavity opening are arranged opposite to each other, and the left box side wall and the right box side wall are connected into one piece through the two ends of the connecting part, the left box and the right box have the same structure, and are both composed of side walls and connecting fold lines between the side walls, the side walls include first to fifth side walls, the first to third side walls are connected in sequence through the fold lines of the side edges, the fourth side wall and the fifth side wall are respectively connected to the two ends of the third side wall through the fold lines, the first side wall is further provided with a first folding piece and a second folding piece at both ends, the fourth side wall is provided with a third folding piece and a fourth folding piece, the end of the third folding piece connected to the fourth side wall is further provided with a first opening, the fourth folding piece is further provided with a first protruding portion, the fifth side wall is provided with a fifth folding piece and a sixth folding piece, the end of the fifth folding piece connected to the fifth side wall is further provided with a second opening, and the sixth folding piece is further provided with a second protruding portion; The connecting part is composed of a connecting bridge and a foldable first swing and a second swing arranged on the left and right sides of the connecting bridge, wherein the first swing is connected to the third side wall of the left box body through the fold line, and the second swing is connected to the third side wall of the right box body through the fold line; The two ends of the elastic film are fixed to the connecting portion by adhesive, and the envelope surrounds the left and right boxes of the corrugated packaging box to fix the left and right boxes to keep them in a closed state.

2. The one-piece, stretchable, suspended, and fastened corrugated packaging box according to claim 1, is characterized in that: The two ends of the connecting bridge of the connecting part are also provided with a foldable seventh folding piece and an eighth folding piece, and the two ends of the elastic film are fixed to the seventh folding piece and the eighth folding piece at the two ends of the connecting bridge by adhesive.

3. The one-piece, stretchable, suspended and fastened corrugated packaging box according to claim 1 is characterized in that: A first folding portion may be provided between the first swing of the connecting portion and the third side wall of the left box body, and a second folding portion may be provided between the second swing and the third side wall of the right box body.

4. The one-piece, stretchable, suspended, and fastened corrugated packaging box according to claim 1, is characterized in that: The left box body and the right box body can be folded and stretched along the connecting portion.

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