Multi-layer composite carton structure

Abstract

The utility model relates to the technical field of cartons, and discloses a multi-layer composite carton structure which solves the problems that an existing carton is low in strength and poor in waterproof and moistureproof performance, the multi-layer composite carton structure comprises a carton body, the carton body is composed of a main carton body, a cover plate and a base, and the cover plate is connected to the top end of the main carton body. The base is fixedly connected to the bottom end of the main box body, the main box body and the cover plate are each composed of a first buffer combination layer, a first urea resin hydrophobic layer, a plurality of longitudinal paper tubes, a plurality of transverse paper tubes, a second buffer combination layer and a second urea resin hydrophobic layer, and the first urea resin hydrophobic layer is connected to the side face of the first buffer combination layer. The longitudinal paper tube and the transverse paper tube are connected between the first buffering combination layer and the second buffering combination layer and are of a vertical structure, and the second urea resin hydrophobic layer is connected to the side, away from the transverse paper tube, of the second buffering combination layer. By means of the carton structure, the overall strength and the buffering performance can be improved, and meanwhile good waterproof and moisture-proof performance is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of cardboard box technology, specifically a multi-layer composite cardboard box structure. Background Technology

[0002] Cardboard boxes are the most widely used packaging products in modern society. They can be used to package clothes, food and other items. However, existing cardboard boxes have the disadvantage of low strength. When packaging items that cannot be squeezed, collided or bear weight, they are prone to damage. In addition, existing cardboard boxes also have the disadvantage of poor waterproof and moisture-proof performance. Cardboard boxes are easily damaged by moisture and have poor performance. Therefore, this application proposes a multi-layer composite cardboard box structure. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a multi-layer composite cardboard box structure, which effectively solves the problems of low strength and poor waterproof and moisture-proof performance of existing cardboard boxes.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer composite cardboard box structure, including a cardboard box body, the cardboard box body being composed of a main box body, a cover plate and a base, the cover plate being connected to the top of the main box body, and the base being fixedly connected to the bottom of the main box body. Both the main box body and the cover plate are composed of a first buffer layer, a first urea-formaldehyde resin hydrophobic layer, several longitudinal paper tubes, several transverse paper tubes, a second buffer layer and a second urea-formaldehyde resin hydrophobic layer. The first urea-formaldehyde resin hydrophobic layer is connected to the side of the first buffer layer, the longitudinal paper tubes and the transverse paper tubes are connected between the first buffer layer and the second buffer layer, the longitudinal paper tubes and the transverse paper tubes are vertical structures, and the second urea-formaldehyde resin hydrophobic layer is connected to the side of the second buffer layer away from the transverse paper tubes.

[0005] Both buffer layer one and buffer layer two are composed of corrugated base paper layer one, corrugated buffer paper layer and corrugated base paper layer two, with the corrugated buffer paper layer connecting corrugated base paper layer one and corrugated base paper layer two.

[0006] Preferably, the first buffer layer, the first urea-formaldehyde resin hydrophobic layer, the longitudinal paper tube, the transverse paper tube, the second buffer layer, and the second urea-formaldehyde resin hydrophobic layer are bonded together by an adhesive structure, and the first corrugated base paper layer, the corrugated buffer paper layer, and the second corrugated base paper layer are bonded together by an adhesive structure.

[0007] Preferably, four folding covers are fixedly installed on the side of the top of the main housing.

[0008] Preferably, a limiting paper frame is fixedly provided on the side of the top of the cover plate. The limiting paper frame and the cover plate are glued together, and a limiting groove is formed between the limiting paper frame and the top surface of the cover plate.

[0009] Preferably, the base is composed of a solid paper sleeve, a first side extension plate, and a second side extension plate. The solid paper sleeve is fitted onto the bottom of the main body and glued to the main body. The first side extension plate and the second side extension plate are respectively fixedly connected to the middle positions of the top two sides of the solid paper sleeve and glued to the sides of the solid paper sleeve.

[0010] Preferably, a rubber wear-resistant layer is fixedly provided on the bottom surface of the solid paper sleeve, and the rubber wear-resistant layer and the bottom surface of the solid paper sleeve are connected by adhesive.

[0011] Preferably, both the first and second side extension plates are composed of strip cardboard, several tensile braided strips, and folding buckles. The folding buckles are fixedly connected to the top of the strip cardboard, and the tensile braided strips are interlaced inside the solid paper shell, the strip cardboard, and the folding buckles.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) In operation, by setting up a main box and cover plate consisting of a buffer combination layer 1, a urea-formaldehyde resin hydrophobic layer 1, several longitudinal paper tubes, several transverse paper tubes, a buffer combination layer 2 and a urea-formaldehyde resin hydrophobic layer 2, the compressive strength and waterproof performance of the main box and cover plate can be improved. By setting up a buffer combination layer 1 and a buffer combination layer 2 consisting of a corrugated base paper layer 1, a corrugated buffer paper layer and a corrugated base paper layer 2, the buffer performance of the main box and cover plate can be improved.

[0014] (2) By setting a limiting paper frame and a limiting groove, the carton can be limited when stacked, which improves the stability of stacking. By setting a rubber wear-resistant layer, the wear resistance of the bottom of the carton can be improved, thereby improving the service life of the carton.

[0015] (3) By setting up a first side extension plate and a second side extension plate consisting of strip cardboard, several tensile braided strips and folding buckles, it is easier to handle the carton, improve the convenience of handling, and improve the overall strength. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the multi-layer composite cardboard box structure of this utility model;

[0019] Figure 2 This is an exploded view of the multi-layer composite cardboard box of this utility model;

[0020] Figure 3 This is a schematic diagram of the multi-layer composite cardboard box structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the base structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the second side extension plate structure of this utility model;

[0023] In the diagram: 1. Carton body; 2. Main carton body; 3. Cover plate; 4. Buffer layer one; 5. Urea-formaldehyde resin hydrophobic layer one; 6. Longitudinal paper tube; 7. Transverse paper tube; 8. Buffer layer two; 9. Urea-formaldehyde resin hydrophobic layer two; 10. Corrugated base paper layer one; 11. Wavy buffer paper layer; 12. Corrugated base paper layer two; 13. Base; 14. Folding cover plate; 15. Limiting paper frame; 16. Limiting groove; 17. Solid paper sleeve; 18. First side extension plate; 19. Second side extension plate; 20. Rubber wear-resistant layer; 21. Strip cardboard; 22. Tensile braided strap; 23. Folding buckle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Depend on Figures 1 to 5 The present invention discloses a multi-layer composite cardboard box structure, including a cardboard box body 1, which is composed of a main box body 2, a cover plate 3, and a base 13. The cover plate 3 is connected to the top of the main box body 2, and the base 13 is fixedly connected to the bottom of the main box body 2. Both the main box body 2 and the cover plate 3 are composed of a first buffer layer 4, a first urea-formaldehyde resin hydrophobic layer 5, several longitudinal paper tubes 6, several transverse paper tubes 7, a second buffer layer 8, and a second urea-formaldehyde resin hydrophobic layer 9. The first urea-formaldehyde resin hydrophobic layer 5 is connected to the side of the first buffer layer 4. The longitudinal paper tubes 6 and the transverse paper tubes 7 are connected between the first buffer layer 4 and the second buffer layer 8. The longitudinal paper tubes 6 and the transverse paper tubes 7 are vertical structures. The second urea-formaldehyde resin hydrophobic layer 9 is connected to the side of the second buffer layer 8 away from the transverse paper tubes 7.

[0026] The vertical structure of the longitudinal paper tube 6 and the transverse paper tube 7 can improve the compressive strength of the main box 2 and the cover plate 3, and also has a cushioning performance. The urea-formaldehyde resin hydrophobic layer 1 5 and the urea-formaldehyde resin hydrophobic layer 2 9 can improve the internal and external waterproof and moisture-proof performance of the main box 2 and the cover plate 3.

[0027] Both the first buffer layer 4 and the second buffer layer 8 are composed of the first corrugated base paper layer 10, the corrugated buffer paper layer 11 and the second corrugated base paper layer 12, with the corrugated buffer paper layer 11 connected between the first corrugated base paper layer 10 and the second corrugated base paper layer 12.

[0028] The buffer combination layer 14 and buffer combination layer 28, which consist of corrugated base paper layer 10, corrugated cushioning paper layer 11 and corrugated base paper layer 2 12, can achieve double-layer cushioning, further improve the cushioning effect, and effectively protect the items placed inside the carton.

[0029] The buffer combination layer 14, urea-formaldehyde resin hydrophobic layer 15, longitudinal paper tube 6, transverse paper tube 7, buffer combination layer 28 and urea-formaldehyde resin hydrophobic layer 29 are bonded together with an adhesive structure. The corrugated base paper layer 10, corrugated buffer paper layer 11 and corrugated base paper layer 212 are bonded together with an adhesive structure. The adhesive structure can improve the connection stability.

[0030] Four folding covers 14 are fixedly installed on the side of the top of the main body 2, which can achieve the function of covering.

[0031] A limiting paper frame 15 is fixedly provided on the side of the top of the cover plate 3. The limiting paper frame 15 and the cover plate 3 are glued together. A limiting groove 16 is formed between the limiting paper frame 15 and the top surface of the cover plate 3, which can achieve the limiting function when the cartons are stacked and improve the stability of the cartons.

[0032] The base 13 is composed of a solid paper shell 17, a first side extension plate 18, and a second side extension plate 19. The solid paper shell 17 is fitted onto the bottom of the main box 2 and glued to the main box 2. The first side extension plate 18 and the second side extension plate 19 are respectively fixedly connected to the middle position of the top two sides of the solid paper shell 17 and glued to the side of the solid paper shell 17.

[0033] The solid paper casing 17 can provide thickened protection for the bottom of the main box 2, and the first side extension plate 18 and the second side extension plate 19 can facilitate the handling of the main box 2.

[0034] A rubber wear-resistant layer 20 is fixedly provided on the bottom surface of the solid paper sleeve 17. The rubber wear-resistant layer 20 and the bottom surface of the solid paper sleeve 17 are connected by adhesive. The rubber wear-resistant layer 20 can improve the wear resistance.

[0035] Both the first side extension plate 18 and the second side extension plate 19 are composed of strip cardboard 21, several tensile braided strips 22 and folding buckles 23. The folding buckles 23 are fixedly connected to the top of the strip cardboard 21, and the tensile braided strips 22 are inserted into the interior of the solid paper shell 17, the strip cardboard 21 and the folding buckles 23.

[0036] The tensile braided strap 22 can improve the connection strength between the strip cardboard 21 and the folding buckle 23, and the folding buckle 23 can facilitate the handling of the carton.

Claims

1. A multi-layer composite cardboard box structure, comprising a cardboard box body (1), characterized in that: The carton body (1) is composed of a main body (2), a cover plate (3) and a base (13). The cover plate (3) is connected to the top of the main body (2), and the base (13) is fixedly connected to the bottom of the main body (2). The main body (2) and the cover plate (3) are both composed of a first buffer layer (4), a first urea-formaldehyde resin hydrophobic layer (5), several longitudinal paper tubes (6), several transverse paper tubes (7), a second buffer layer (8) and a second urea-formaldehyde resin hydrophobic layer (9). The first urea-formaldehyde resin hydrophobic layer (5) is connected to the side of the first buffer layer (4). The longitudinal paper tubes (6) and the transverse paper tubes (7) are connected between the first buffer layer (4) and the second buffer layer (8). The longitudinal paper tubes (6) and the transverse paper tubes (7) are vertical structures. The second urea-formaldehyde resin hydrophobic layer (9) is connected to the side of the second buffer layer (8) away from the transverse paper tubes (7). Both the first buffer layer (4) and the second buffer layer (8) are composed of the first corrugated base paper layer (10), the corrugated buffer paper layer (11) and the second corrugated base paper layer (12), with the corrugated buffer paper layer (11) connected between the first corrugated base paper layer (10) and the second corrugated base paper layer (12).

2. The multi-layer composite cardboard box structure according to claim 1, characterized in that: The buffer combination layer one (4), urea-formaldehyde resin hydrophobic layer one (5), longitudinal paper tube (6), transverse paper tube (7), buffer combination layer two (8) and urea-formaldehyde resin hydrophobic layer two (9) are bonded together by adhesive, and the corrugated base paper layer one (10), the wavy buffer paper layer (11) and the corrugated base paper layer two (12) are bonded together by adhesive.

3. The multi-layer composite cardboard box structure according to claim 1, characterized in that: Four folding covers (14) are fixedly installed on the side of the top of the main box (2).

4. The multi-layer composite cardboard box structure according to claim 1, characterized in that: A limiting paper frame (15) is fixedly provided on the side of the top of the cover plate (3). The limiting paper frame (15) and the cover plate (3) are glued together, and a limiting groove (16) is formed between the limiting paper frame (15) and the top surface of the cover plate (3).

5. The multi-layer composite cardboard box structure according to claim 1, characterized in that: The base (13) is composed of a solid paper shell (17), a first side extension plate (18), and a second side extension plate (19). The solid paper shell (17) is fitted onto the bottom of the main box (2) and glued to the main box (2). The first side extension plate (18) and the second side extension plate (19) are respectively fixedly connected to the middle positions of the top two sides of the solid paper shell (17) and glued to the sides of the solid paper shell (17).

6. The multi-layer composite cardboard box structure according to claim 5, characterized in that: The bottom surface of the solid paper shell (17) is fixedly provided with a rubber wear-resistant layer (20), and the rubber wear-resistant layer (20) and the bottom surface of the solid paper shell (17) are connected by adhesive.

7. The multi-layer composite cardboard box structure according to claim 5, characterized in that: The first side extension plate (18) and the second side extension plate (19) are both composed of strip cardboard (21), several tensile braided strips (22) and folding buckles (23). The folding buckles (23) are fixedly connected to the top of the strip cardboard (21), and the tensile braided strips (22) are inserted into the interior of the solid paper shell (17), the strip cardboard (21) and the folding buckles (23).

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