Damp-proof and heat-insulation packaging paperboard

Abstract

The utility model discloses a moisture-proof heat-insulation packaging paperboard, which relates to the technical field of packaging paperboards, and comprises a partition plate, two folded plates and two outer plates, the two folded plates are symmetrically arranged on the two sides of the partition plate, the two outer plates are symmetrically arranged on the two sides of the partition plate, and the two outer plates are arranged on the sides, far away from the partition plate, of the folded plates; the folded plate is of a flat wavy structure, wavy protruding ends are arranged on the two sides of the folded plate at equal intervals, outer embedding grooves are formed in the two sides of the partition plate, and the outer embedding grooves and the wavy protruding ends are arranged in a matched mode. According to the paperboard, the situation that the folded plate deforms after the paperboard is pressed, and the bonding position of the folded plate and the partition plate and the outer plate falls off can be effectively avoided, the connecting effect between the partition plate in the paperboard and the outer plate and the folded plate can be effectively improved, and therefore the pressure resistance of the paperboard is improved; in addition, the board walls on the two sides of the partition boards are coated with the rubber coatings, so that the paperboard has the damp-proof and heat-insulation effects effectively.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging cardboard, in particular to a moisture-proof and heat-insulating packaging cardboard. Background Art

[0002] Corrugated cardboard is a kind of board composed of a corrugated core layer formed between two or more layers of cardboard and a covering layer, commonly known as "hollow board", "corrugated paper", "corrugated core paper", "corrugated paper core", "corrugated base paper". The corrugated waves are like a series of connected arched doors, arranged side by side in a row, supporting each other to form a triangular structure body, which has good mechanical strength, can also withstand a certain pressure from the plane, is rich in elasticity and has a good buffering effect.

[0003] When it is used in the packaging process, although it has good mechanical strength, compressive resistance and elastic buffering, due to the characteristics of its paper material, its moisture-proof and heat-insulating effects are poor, so it cannot be used to package and hold items that need moisture-proof and heat-insulating. Content of the Utility Model

[0004] The purpose of the utility model is to provide a moisture-proof and heat-insulating packaging cardboard to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a moisture-proof and heat-insulating packaging cardboard, including a partition board, folding boards and outer boards. There are two folding boards and two outer boards. The two folding boards are symmetrically arranged on both sides of the partition board, and the two outer boards are symmetrically arranged on both sides of the partition board, and the two outer boards are arranged on the side of the folding board away from the partition board;

[0006] The folding board is a flat wavy structure. Wave-shaped protruding ends are evenly arranged at equal intervals on both sides of the folding board, and outer embedding grooves are opened on both sides of the partition board. The outer embedding grooves are adapted to the wave-shaped protruding ends, and the wave-shaped protruding ends on the inner side of the folding board are inserted into the inner part of the outer embedding grooves;

[0007] Rubber coatings are applied on the plate walls on both sides of the partition board;

[0008] Inner embedding grooves adapted to the wave-shaped protruding ends are opened on the plate wall of the outer board close to the folding board, and the wave-shaped protruding ends on the outer side of the folding board are inserted into the inner part of the inner embedding grooves.

[0009] Preferably, both between the partition board and the folding board and between the folding board and the outer board are bonded by adhesive.

[0010] Preferably, the ends of the wave-shaped protruding ends on both sides of the folding board are flat structures.

[0011] Preferably, after the outer wall of the partition board is coated with a rubber coating, it is then connected to the folding board.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The moisture-proof and heat-insulating packaging cardboard of the present utility model has a simple structure and is convenient to use. By respectively providing externally-embedded grooves and internally-embedded grooves adapted to the folding plates on the partition board and the outer board walls corresponding to the folding plates, and after the wavy protruding ends on the folding plates are inserted into the externally-embedded grooves and the internally-embedded grooves, it can effectively prevent the folding plates from deforming after the cardboard is subjected to pressure and falling off from the bonding parts with the partition board and the outer board, and can effectively improve the connection effect between the partition board and the outer board inside the cardboard and the folding plates, thereby improving the compressive resistance of the cardboard;

[0013] In addition, by coating rubber coatings on the two side walls of the partition board, the cardboard can effectively have the effects of moisture-proof and heat insulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural view of the present utility model;

[0015] Figure 2 is an exploded view of the present utility model;

[0016] Figure 3 is a top view of the present utility model;

[0017] Figure 4 is Figure 3 a partial enlarged view of part A in

[0018] In the figure: 1, partition board; 11, externally-embedded groove; 2, rubber coating; 3, folding plate; 31, wavy protruding end; 4, outer board; 41, internally-embedded groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-4 , the present utility model provides a technical solution: A moisture-proof and heat-insulating packaging cardboard, including a partition board 1, a folding plate 3 and an outer board 4. There are two folding plates 3 and two outer boards 4. The two folding plates 3 are symmetrically arranged on both sides of the partition board 1, and the two outer boards 4 are symmetrically arranged on both sides of the partition board 1, and the two outer boards 4 are arranged on the side of the folding plate 3 away from the partition board 1;

[0021] The folding plate 3 is a flat wavy structure. Wave-shaped protruding ends 31 are arranged at equal intervals on both sides of the folding plate 3. Outer embedding grooves 11 are formed on both sides of the partition plate 1. The outer embedding grooves 11 are arranged in adaptation to the wave-shaped protruding ends 31. The wave-shaped protruding ends 31 on the inner side of the folding plate 3 are inserted into the interior of the outer embedding grooves 11.

[0022] Rubber coatings 2 are applied to the plate walls on both sides of the partition plate 1.

[0023] Inner embedding grooves 41 adapted to the wave-shaped protruding ends 31 are formed on the plate wall of the outer plate 4 close to the folding plate 3. The wave-shaped protruding ends 31 on the outer side of the folding plate 3 are inserted into the interior of the inner embedding grooves 41.

[0024] Both between the partition plate 1 and the folding plate 3 and between the folding plate 3 and the outer plate 4 are bonded by adhesives, facilitating the connection between multiple layers of plates.

[0025] The ends of the wave-shaped protruding ends 31 on both sides of the folding plate 3 are flat structures. The flat wave-shaped protruding ends 31 can be inserted into the embedding grooves more stably.

[0026] After the outer wall of the partition plate 1 is coated with the rubber coating 2, it is then connected to the folding plate 3.

[0027] Specifically, when assembling the cardboard, first apply the rubber coating 2 on the plate walls on both sides of the partition plate 1. The rubber coating 2 can endow the partition plate 1 with moisture-proof and heat-insulating properties. The size of the outer embedding grooves 11 on the partition plate 1 before applying the rubber coating 2 is larger than that of the wave-shaped protruding ends 31, so that the wave-shaped protruding ends 31 can still be inserted into the outer embedding grooves 11 after the partition plate 1 is coated with the rubber coating 2. Then apply adhesives on the outer wall of the partition plate 1 coated with the rubber coating 2 and insert the wave-shaped protruding ends 31 on the folding plate 3 into the outer embedding grooves 11 for bonding, so that the folding plate 3 is adhered to both sides of the partition plate 1. Finally, apply adhesives on the inner plate wall of the outer plate 4 and adhere it to the side of the folding plate 3 away from the partition plate 1, thus completing the assembly of the cardboard. When in use, through the outer embedding grooves 11 and the inner embedding grooves 41 adapted to the folding plate 3 are respectively formed on the plate walls of the partition plate 1 and the outer plate 4, and after the wave-shaped protruding ends 31 on the folding plate 3 are inserted into the outer embedding grooves 11 and the inner embedding grooves 41, it can effectively prevent the folding plate from deforming after the cardboard is subjected to pressure and falling off from the bonding places with the partition plate 1 and the outer plate 4, and can effectively improve the connection effect between the partition plate 1 and the outer plate 4 and the folding plate 3 inside the cardboard, thereby improving the compressive resistance of the cardboard.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A moisture-proof and heat-insulating packaging paperboard, characterized in that: It comprises a partition plate (1), a folding plate (3) and an outer plate (4), wherein two folding plates (3) and two outer plates (4) are provided, the two folding plates (3) are symmetrically arranged on both sides of the partition plate (1), the two outer plates (4) are symmetrically arranged on both sides of the partition plate (1), and the two outer plates (4) are arranged on the side of the folding plate (3) away from the partition plate (1); The folding plate (3) is a flat wave-shaped structure, and wave-shaped protruding ends (31) are evenly spaced on both sides of the folding plate (3), and external embedding grooves (11) are opened on both sides of the partition plate (1), and the external embedding grooves (11) are matched with the wave-shaped protruding ends (31), and the wave-shaped protruding ends (31) on the inner side of the folding plate (3) are inserted into the inner side of the external embedding grooves (11); The plate walls on both sides of the partition plate (1) are coated with a rubber coating (2); An adapted inner groove (41) is provided on the plate wall of the outer plate (4) on the side close to the folding plate (3) corresponding to the wave convex end (31), and the wave convex end (31) on the outer side of the folding plate (3) is inserted into the inner groove (41).

2. The moisture-proof and heat-insulating packaging paperboard according to claim 1, characterized in that: The partition plate (1) and the folding plate (3) as well as the folding plate (3) and the outer plate (4) are bonded together by adhesive.

3. The moisture-proof and heat-insulating packaging paperboard according to claim 1, characterized in that: The ends of the wave-shaped raised ends (31) on both sides of the folded plate (3) are flat structures.

4. The moisture-proof and heat-insulating packaging paperboard according to claim 1, characterized in that: The outer wall of the partition plate (1) is coated with a rubber coating (2) and then connected to the folding plate (3).

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