CN219361658U - Corrugated case that structural strength is high - Google Patents

Abstract

The application relates to the technical field of corrugated cartons, more specifically relates to a corrugated carton that structural strength is high, include: the cardboard combination, the cardboard combination includes outer ply, interior ply, two intermediate layers and three flute layer, three flute layer interval arrangement, and be equipped with an intermediate layer between the adjacent two flute layers, the two sides of intermediate layer respectively with the flute layer bonding connection that corresponds, between outer ply and the interior ply were all located to each flute layer, one flute layer deviates from the intermediate layer one side and is connected with outer ply bonding, another flute layer deviates from the intermediate layer one side and is connected with interior ply bonding, have a plurality of crease on the cardboard combination, every crease department all is equipped with a reinforcement, the cardboard combination is buckled predetermined angle along the crease, and the both ends of cardboard combination link to each other, have more buffer regions through two intermediate layers, three flute layers realization, the advantage that the overall structure intensity of carton is higher, structural strength through strengthening rib improvement carton corner, realize that the corner is difficult for deformation, structural strength is higher advantage.

Description

Corrugated case that structural strength is high

Technical Field

The application relates to the technical field of corrugated cartons, and more particularly relates to a corrugated carton with high structural strength.

Background

The corrugated board is manufactured into the corrugated paper box through die cutting, indentation, nailing or sticking. Corrugated cartons are widely used as a packaging product, and are used as transport packaging containers in place of wooden boxes in many occasions due to their excellent usability and good processability.

The existing corrugated case, as shown in fig. 1 and 2, comprises a corrugated board 90, the corrugated board 90 is provided with a plurality of folds 91, the corrugated board 90 is folded by 90 degrees along the folds 91 and forms a corrugated case with square end faces, the corrugated board 90 comprises two packaging layers 92 and a corrugated layer 93, the corrugated layer 93 is positioned between the two packaging layers 92, the corrugated layer 93 is formed by corrugated paper in a winding arrangement, and when in transportation, the corrugated case is sleeved outside a transportation object and performs physical protection on the transportation object. However: in the event of collision of objects, the corrugated layers 93 provide buffering, but since the corrugated board 90 only comprises one corrugated layer 93, the buffering area is small, and the anti-collision capability of the corrugated paper box is limited, in addition, due to the lower structural strength of one corrugated layer 93, when the side surface of the corrugated paper box is stressed, the deformation amount of the corrugated paper box is larger, and the stress surface has serious concave or convex phenomenon, more specifically, a plurality of groups of glass bottles are supposed to be arranged in the corrugated paper box, after the vehicle bumps, a certain group of glass bottles moves in the corrugated paper box or acts on the side surface of the corrugated paper box due to the malposition of the glass bottles when the vehicle is placed, and protrudes outwards, and when the side surface of the corrugated paper box is severely protruded outwards, the group of glass bottles easily falls into the additional space formed after the lateral surface protrudes outwards, and at the moment, the group of glass bottles are extremely easy to be damaged; in addition, it is easy to see that the thickness of the crease 91 of the corrugated case, that is, the corner is far smaller than the thickness of the rest of the corrugated case, so in the transportation process, if an external object slides and abuts against the corner of the corrugated case, the corner of the corrugated case is extremely easy to be pressed and deformed, and the corner of the transported object placed in the corrugated case is at risk of being knocked and damaged.

Therefore, there is a need to provide a corrugated box with more cushioning areas, higher structural strength, stronger side buckling resistance, and less corner deformation.

Disclosure of Invention

The utility model provides a high corrugated case of structural strength, wherein, the high corrugated case of structural strength includes a cardboard combination, cardboard combination includes an outer ply, an inner ply, two intermediate layers and three corrugated layers, three corrugated layer interval arrangement, and be equipped with one between the adjacent two corrugated layers the intermediate layer, the intermediate layer both sides respectively with corresponding corrugated layer bonding connection, every corrugated layer all locates between outer ply and the inner ply, one corrugated layer deviates from the intermediate layer one side with outer ply bonding connection, another corrugated layer deviates from the intermediate layer one side with inner ply bonding connection, have a plurality of interval arrangement's crease on the cardboard combination, the cardboard combination is followed the crease is buckled predetermined angle, just the both ends of cardboard combination link to each other, compare in prior art one deck corrugated layer, have provided more buffer area, realize the higher advantage of overall structure intensity.

Another object of the application is to provide a corrugated case that structural strength is high, wherein, the corrugated case that structural strength is high still includes a plurality of reinforcement, every of cardboard combination the crease department all is equipped with one the reinforcement, the reinforcement includes a piece of bending, the both ends of a piece of bending all bend predetermined angle and form the portion of bending, two the portion of bending with cardboard combination fixed connection, through setting up the piece of bending, realize corrugated case corner non-deformable's advantage.

Another object of the present application is to provide a corrugated case with high structural strength, wherein, the cardboard combination is followed every the crease is buckled 90 and is formed corresponding perpendicular, the corrugated case with high structural strength still includes a plurality of inserted bar, a plurality of connecting rod, each the inserted bar all includes a connecting portion and three extension ends, three the one end of extension end with connecting portion fixed connection, each the middle section of perpendicular all is equipped with one the inserted bar, the three of inserted bar the extension end inserts respectively and corresponds the space of corrugated layer is connected through glue, and adjacent two all be equipped with one between the connecting portion the connecting rod, the both ends of connecting rod respectively with two connecting portion fixed connection through setting up connecting rod and inserted bar, effectively promote corrugated case's side and prevent the ability of buckling.

Another object of the present application is to provide a corrugated case with high structural strength, wherein, the corrugated case with high structural strength has a simple structure, is convenient to operate, does not involve complicated manufacturing process and expensive materials, has higher economy, and is easy to popularize and use.

In order to achieve at least one of the above objects, the present application provides a corrugated carton with high structural strength, wherein the corrugated carton with high structural strength comprises:

the paperboard combination comprises an outer paper layer, an inner paper layer, two interlayers and three corrugated layers, wherein the three corrugated layers are arranged at intervals, one interlayer is arranged between every two adjacent corrugated layers, two sides of the interlayer are respectively connected with the corresponding corrugated layers in an adhering mode, each corrugated layer is arranged between the outer paper layer and the inner paper layer, one corrugated layer faces away from the interlayer and is connected with the outer paper layer in an adhering mode, the other corrugated layer faces away from the interlayer and is connected with the inner paper layer in an adhering mode, a plurality of folds are arranged on the paperboard combination at intervals, the paperboard combination is bent to a preset angle along the folds, and two ends of the paperboard combination are connected.

In one or more embodiments of the present application, the thickness of both the outer paper layer and the inner paper layer is greater than the thickness of the interlayer.

In one or more embodiments of the present application, the corrugated case with high structural strength further includes a plurality of reinforcing members, each crease of the cardboard combination is provided with one reinforcing member, the reinforcing member includes a bending member, both ends of the bending member are bent by a predetermined angle and form bending portions, and the two bending portions are fixedly connected with the cardboard combination.

In one or more embodiments of the present application, the reinforcement further includes a buffer portion, the buffer portion has a through hole penetrating therethrough, and the buffer portion and the bending member are integrally formed, and the buffer portion extends into the gap at the crease of the cardboard assembly.

In one or more embodiments of the present application, the reinforcing member further includes a plurality of reinforcing ribs, each of the reinforcing ribs is located at a side of the bending portion facing away from the buffer portion, and the reinforcing ribs are integrally formed with the bending member.

In one or more embodiments of the present application, the cardboard combination is folded by 90 ° along each crease and forms a corresponding vertical plane, the corrugated carton with high structural strength further includes a plurality of inserting rods, each inserting rod includes a connecting portion and three extending ends, three one ends of the extending ends are fixedly connected with the connecting portion, each middle section of the vertical plane is provided with one inserting rod, and three extending ends of the inserting rods are respectively inserted into corresponding gaps of the corrugated layers.

In one or more embodiments of the present application, glue is injected into the void in the corrugated layer where the extension ends are located.

In one or more embodiments of the present application, the corrugated case with high structural strength further includes a plurality of connecting rods, two adjacent connecting portions are each provided with one connecting rod, and two ends of each connecting rod are respectively and fixedly connected with two connecting portions.

In one or more embodiments of the present application, the outer paper layer of the end of the cardboard assembly facing away from the connecting rod is covered with a waterproof film, and the waterproof film is adhesively connected with the outer paper layer.

In this application embodiment, the cardboard combination includes an outer ply, an inner ply, two intermediate layers and three flute layer, and is equipped with an intermediate layer between the three flute layer interval arrangement, and adjacent two flute layers, the intermediate layer both sides respectively with correspond the flute layer bonding is connected, each the flute layer is all located outer ply with between the inner ply, through setting up two intermediate layers and three flute layers, increased buffer zone to make the overall structure intensity of carton higher, in addition, have a plurality of crease that the interval was arranged on the cardboard combination, every crease department all is equipped with a reinforcement, through setting up the reinforcement, improves the structural strength of carton corner, makes the carton corner be difficult for warping when the collision, realizes the advantage that structural strength is high.

Drawings

These and/or other aspects and advantages of the present application will become more apparent and more readily appreciated from the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings, wherein:

fig. 1 illustrates a schematic structural view of a conventional corrugated carton;

FIG. 2 illustrates a partial enlarged view at A of FIG. 1;

fig. 3 illustrates a structural schematic view of a corrugated carton with high structural strength according to an embodiment of the present application;

FIG. 4 illustrates a partial enlarged view at B of FIG. 3;

FIG. 5 illustrates a structural schematic of a stiffener;

FIG. 6 illustrates a cross-sectional view at D-D of FIG. 5;

FIG. 7 illustrates a partial enlarged view at C of FIG. 3;

fig. 8 illustrates a schematic structural view of the plunger.

Detailed Description

The terms and words used in the following description and claims are not limited to literal meanings, but are used only by the inventors to enable a clear and consistent understanding of the application. It will be apparent to those skilled in the art, therefore, that the following description of the various embodiments of the present application is provided for the purpose of illustration only and not for the purpose of limiting the application as defined by the appended claims and their equivalents.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

Although ordinal numbers such as "first," "second," etc., will be used to describe various components, those components are not limited herein. The term is used merely to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component, without departing from the teachings of the inventive concept. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular is intended to include the plural as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, or groups thereof.

Summary of the application

The existing corrugated board only comprises one corrugated layer, the buffer area of the corrugated board is less, the anti-collision capacity of the corrugated board is limited, in addition, as the structural strength of one corrugated layer is lower, after the side surface of the corrugated board is stressed, the deformation of the corrugated board is larger, the stressed surface has serious concave or convex phenomenon, and small articles transport objects or fall or damage due to the phenomenon; in addition, the thickness of the crease, namely the corner, of the corrugated case is far smaller than that of the rest of the corrugated case, so that in the transportation process, if an external object slides and abuts against the corner of the corrugated case, the corner of the corrugated case is extremely easy to be pressed and deformed, and the corner of the transported object in the corrugated case is at risk of being knocked and damaged.

Based on the technical problem, the application provides a corrugated case that structural strength is high, wherein, structural strength is high corrugated case simple structure does not relate to complicated manufacturing process and expensive material, has higher economic nature, simultaneously, to the producer, the corrugated case that structural strength is high that this application provided easily produces, and low cost is more favorable to controlling manufacturing cost, further is favorable to product popularization and use.

A corrugated carton with high schematic structural strength,

referring to fig. 3 to 8, a corrugated box with high structural strength according to a preferred embodiment of the present utility model, as shown in fig. 3 and 4, comprises a board assembly 10, wherein the board assembly 10 comprises an outer paper layer 101, an inner paper layer 102, two interlayers 103 and three corrugated layers 104, three corrugated layers 104 are arranged at intervals, one interlayer 103 is arranged between two adjacent corrugated layers 104, two sides of the interlayer 103 are respectively connected with the corresponding corrugated layers 104 in an adhesive manner, each corrugated layer 104 is arranged between the outer paper layer 101 and the inner paper layer 102, one side of the corrugated layer 104 facing away from the interlayer 103 is connected with the outer paper layer 101 in an adhesive manner, the other side of the corrugated layer 104 facing away from the interlayer 103 is connected with the inner paper layer 102 in an adhesive manner, the board assembly 10 is provided with a plurality of folds 105 arranged at intervals, the board assembly 10 is folded along the folds 105 by a predetermined angle, and two ends of the board assembly 10 are connected.

Specifically, as shown in fig. 4, each corrugated layer 104 is formed by corrugated paper in a serpentine arrangement, and corrugated paper in a wave shape forms a plurality of first abutting portions 1041 and a plurality of second abutting portions 1042, the areas between the first abutting portions 1041 and the second abutting portions 1042 are buffer areas, the first abutting portions 1041 and the second abutting portions 1042 are arranged in a staggered manner, and the peak of each first abutting portion 1041 is adhesively connected with an adjacent interlayer 103 or inner paper layer 102, and the peak of each second abutting portion 1042 is adhesively connected with an adjacent interlayer 103 or outer paper layer 101; in addition, in this embodiment, the number of the folds 105 is four, the cardboard assembly 10 is folded by 90 ° along each fold 105 and forms a corrugated cardboard box with a square end face shape, wherein, one fold 105 is close to an end of one end of the cardboard assembly 10, when the cardboard assembly 10 is folded by 90 ° along each fold 105, the end of one end of the cardboard assembly 10 extends into the corrugated cardboard box and is attached to the end of the other end of the cardboard assembly 10, and two ends of the cardboard assembly 10 are stapled by using a sealing nail. It should be noted that, compared with the adoption of one corrugated layer 104 in the prior art, the embodiment of the application increases the buffer area through setting up three corrugated layer 104 and two intermediate layer 103, effectively promotes the anticollision ability of corrugated case, in addition, through setting up three corrugated layer 104, the corrugated case that structural strength is high still has the advantage that structural strength is higher.

Further, since the outer paper layer 101 and the inner paper layer 102 are both areas in direct contact with an object, the thicknesses of the outer paper layer 101 and the inner paper layer 102 are both greater than the thickness of the interlayer 103, specifically, the thicknesses of the outer layer and the inner paper layer 102 are 1.5 mm-3 mm, and the thickness of the interlayer 103 is 0.8 mm-1.2 mm.

In addition, after the paperboard assembly 10 is creased and the crease 105 is formed, each of the corrugated layers 104 at the crease 105 are pressed against each other, which also results in a corrugated box having a thickness at the crease 105 or corner that is much less than the thickness of the remainder of the corrugated box. In the prior art, the corners of the corrugated case are extremely easy to be pressed and deformed after being collided, and the corrugated case is improved. Specifically, as shown in fig. 4, fig. 5 and fig. 6, the corrugated case with high structural strength further includes a plurality of reinforcing members 20, each crease 105 of the cardboard assembly 10 is provided with one reinforcing member 20, each reinforcing member 20 includes a bending member 201, both ends of the bending member 201 are bent by a predetermined angle and form a bending portion 2011, the two bending portions 2011 are fixedly connected with the cardboard assembly 10, the fixed connection manner includes but is not limited to stapling with a package, the material of the bending member 201 includes but is not limited to cardboard or plastic, referring to fig. 4, corners of the bending member 201 and the corrugated case can be regarded as a triangle, and a phenomenon that corners of the corrugated case collapse to both sides after being stressed is effectively avoided.

Further, as shown in fig. 4 and 6, the reinforcing member 20 further includes a buffer portion 202, where the buffer portion 202 has a through hole 2021 therethrough, and the buffer portion 202 is integrally formed with the bending member 201, and the buffer portion 202 extends into the gap at the crease 105 of the cardboard assembly 10 and abuts against the cardboard assembly 10. When the corners of the corrugated case are stressed and sunken, the buffer parts 202 deform under stress and provide a certain buffer force, so that the risk of the knocked or damaged corner parts of the transported objects is reduced.

Further, to improve the structural strength of the reinforcing member 20, as shown in fig. 5 and 6, the reinforcing member 20 further includes a plurality of reinforcing ribs 203, each reinforcing rib 203 is located at a side of the bending portion 2011 facing away from the buffer portion 202, and the reinforcing ribs 203 and the bending member 201 are integrally formed. By providing the reinforcing member 20, the structural strength of the corrugated case having high structural strength is improved.

In order to improve the bending resistance of any side of the corrugated case with high structural strength, further, as shown in fig. 3, the corrugated case with a square end surface shape formed by bending the cardboard assembly 10 by 90 ° along each crease 105 has four vertical surfaces 106, and four vertical surfaces 106 are four sides of the corrugated case with high structural strength, as shown in fig. 7 and 8, the corrugated case with high structural strength further includes a plurality of inserting rods 30, each inserting rod 30 includes a connecting portion 301 and three extending ends 302, one end of each extending end 302 is fixedly connected with the connecting portion 301, the fixing connection manner includes, but is not limited to, integrally forming or welding, a middle section of each vertical surface 106 is provided with one inserting rod 30, the three extending ends 302 of each inserting rod 30 are respectively inserted between the corresponding gaps of the corrugated layers 104, and the extending ends 302 are located between the first abutting portion 1041 and the second abutting portion 1042.

In addition, in order to achieve the connection of the insert pin 30 to the cardboard assembly 10, the corrugated layer 104 is provided with a glue, including but not limited to white latex, in the space where the extension end 302 is provided.

In addition, as shown in fig. 3 and 7, the corrugated case with high structural strength further includes a plurality of connecting rods 303, one connecting rod 303 is disposed between two adjacent connecting portions 301, two ends of each connecting rod 303 are respectively fixedly connected with two connecting portions 301, and the fixing connection manner includes, but is not limited to, adhesive connection, in this embodiment, four connecting rods 303 are spliced to form another square, and further, four connecting rods 303 are integrally formed. It should be noted that, when any vertical surface 106 of the corrugated case collides with an external object and is stressed, the acting force is transferred to the corresponding extending end 302, and the extending end 302 further transfers the force to the four connecting rods 303 through the connecting portion 301, and since the relative positions of the four connecting rods 303 are not easy to change, the four connecting rods 303 limit the connecting portion 301 and the extending end 302 to move, and reduce the bending degree of the vertical surface 106, so as to avoid the vertical surface 106 from being excessively concave or protruding outwards after being stressed, and realize the advantage of higher bending resistance of the vertical surface 106, i.e., the side surface of the corrugated case. It should be noted that, during transportation, the corrugated case with high structural strength is sleeved outside the transported object, and the connecting rod 303 is located above the transported object.

In addition, in certain specific situations, such as rainy outside environment, when the carrier is carrying objects, the footprint of the carrier is easy to carry with rainwater, so that the bottom surface of the cargo compartment of the transport vehicle has residual moisture, in order to avoid the moisture softening of the cardboard assembly 10, further, the outer paper layer 101 at one end of the cardboard assembly 10, which is far away from the connecting rod 303, is adhered with a waterproof film (not labeled in the figure), and the waterproof film is adhered to the outer paper layer 101, so that the waterproof film is widely used in the market due to mature technology, and the specific structure and model of the waterproof film are not repeated herein, and the waterproof film includes but is not limited to a waterproof film with moisture-proof and moisture-proof functions disclosed in patent document (CN 202120257016.6).

In summary, the corrugated case with high structural strength based on the embodiment of the application is illustrated, and the corrugated case with high structural strength has the advantages of more buffer areas, higher structural strength, stronger side bending resistance, difficult deformation of corners and the like.

It should be noted that in the embodiment of the present application, the corrugated case with high structural strength has a simple structure, does not involve complicated manufacturing process and expensive materials, and has high economical efficiency. Meanwhile, for manufacturers, the corrugated case with high structural strength is easy to produce, low in cost, more beneficial to control of production cost and further beneficial to product popularization and use.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from such principles.

Claims (9)

1. The utility model provides a corrugated box that structural strength is high, its characterized in that: the corrugated case with high structural strength comprises

The paperboard combination comprises an outer paper layer, an inner paper layer, two interlayers and three corrugated layers, wherein the three corrugated layers are arranged at intervals, one interlayer is arranged between every two adjacent corrugated layers, two sides of the interlayer are respectively connected with the corresponding corrugated layers in an adhering mode, each corrugated layer is arranged between the outer paper layer and the inner paper layer, one corrugated layer faces away from the interlayer and is connected with the outer paper layer in an adhering mode, the other corrugated layer faces away from the interlayer and is connected with the inner paper layer in an adhering mode, a plurality of folds are arranged on the paperboard combination at intervals, the paperboard combination is bent to a preset angle along the folds, and two ends of the paperboard combination are connected.

2. The high strength corrugated carton of claim 1, wherein: the thickness of the outer paper layer and the thickness of the inner paper layer are both larger than the thickness of the interlayer.

3. The high strength corrugated carton of claim 1, wherein: the corrugated case with high structural strength further comprises a plurality of reinforcing pieces, each crease of the paper board combination is provided with one reinforcing piece, each reinforcing piece comprises a bending piece, both ends of each bending piece are bent at a preset angle to form bending parts, and the two bending parts are fixedly connected with the paper board combination.

4. A corrugated carton of high structural strength according to claim 3, wherein: the reinforcing piece further comprises a buffer part, the buffer part is provided with a through hole which penetrates through, the buffer part and the bending piece are integrally formed, and the buffer part stretches into a gap at the crease of the paperboard combination.

5. The high strength corrugated carton of claim 4, wherein: the reinforcing piece further comprises a plurality of reinforcing ribs, each reinforcing rib is located on one side, away from the buffer portion, of the bending portion, and the reinforcing ribs are integrally formed with the bending piece.

6. The high strength corrugated carton of claim 1, wherein: the corrugated paper box is characterized in that the paper board combination is bent for 90 degrees along each crease to form a corresponding vertical plane, the corrugated paper box with high structural strength further comprises a plurality of inserting rods, each inserting rod comprises a connecting part and three extending ends, one end of each extending end is fixedly connected with the connecting part, one inserting rod is arranged in the middle section of each vertical plane, and the three extending ends of each inserting rod are respectively inserted into gaps of the corresponding corrugated layers.

7. The high strength corrugated carton of claim 6, wherein: glue is injected into the gaps where the corrugated layers are provided with the extending ends.

8. The high strength corrugated carton of claim 6, wherein: the corrugated case with high structural strength further comprises a plurality of connecting rods, one connecting rod is arranged between every two adjacent connecting parts, and two ends of each connecting rod are fixedly connected with two connecting parts respectively.

9. The high strength corrugated carton of claim 8, wherein: the outer paper layer of one end of the paperboard combination, which is far away from the connecting rod, is adhered with a waterproof film, and the waterproof film is connected with the outer paper layer in an adhesive mode.