Heavy waterproof corrugated board

Abstract

The utility model discloses a thick and heavy type waterproof corrugated board which comprises a main paper board, two sets of thickened paper boards are arranged at the top end and the bottom end of the main paper board, limiting paper boards are installed on the two sides of each thickened paper board, a heat preservation cotton layer is bonded to the bottom end of each thickened paper board, and a waterproof layer is arranged on the bottom end of each thickened paper board. A connecting paperboard is bonded to the bottom end of the heat preservation cotton layer, a supporting interlayer is arranged between the connecting paperboard and the main paperboard, and a waxing layer is arranged outside the limiting paperboard. According to the thick and heavy waterproof corrugated board, a five-layer supporting structure is formed between the first corrugated layer and the main board and between the second corrugated layer and the main board, the buffer blocks in the first corrugated layer and the second corrugated layer have high supporting and buffering effects, when the board is pressed, the first corrugated layer, the second corrugated layer and the buffer blocks can support the board, and therefore the board is prevented from being damaged. According to the structure, the function of enhancing the supporting strength of the paperboard is achieved, and the problem that the supporting strength of the paperboard is poor is solved.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard technology, specifically to a heavy-duty waterproof corrugated cardboard. Background Technology

[0002] Corrugated cardboard is a multi-layered adhesive, consisting of at least one layer of corrugated core paper and one layer of cardboard. Corrugated cardboard is a very common packaging material.

[0003] Research revealed that existing corrugated cardboard has issues with poor waterproofing and structural support. For example, when using corrugated cardboard to package fruits, vegetables, and other items with high humidity, the moisture from the items can seep into the cardboard or cause it to soften due to dampness. Furthermore, corrugated cardboard is prone to shriveling and breaking when squeezed by items, resulting in poor overall structural support and impacting its usability.

[0004] There is an urgent need for a heavy-duty waterproof corrugated cardboard to address the technical deficiencies mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a heavy-duty waterproof corrugated cardboard to solve the problem of poor support effect mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heavy-duty waterproof corrugated cardboard, comprising a main cardboard, with thickened cardboard at the top and bottom of the main cardboard, two sets of thickened cardboard, limiting cardboard installed on both sides of the thickened cardboard, a thermal insulation layer bonded to the bottom of the thickened cardboard, a connecting cardboard bonded to the bottom of the thermal insulation layer, a supporting interlayer between the connecting cardboard and the main cardboard, a wax coating layer on the outside of the limiting cardboard, a drying layer on the inside of the wax coating layer, a waterproof layer at the top of the thickened cardboard, a flame-retardant layer at the bottom of the waterproof layer, connecting blocks on both sides of the thickened cardboard, and a supporting component between the supporting interlayers;

[0007] The support assembly includes a first corrugated layer and a second corrugated layer. A first support block and a second support block are fixedly connected to both sides inside the support interlayer. A connecting layer is fixedly connected between the first support block and the second support block. The first corrugated layer and the second corrugated layer are respectively installed at the top and bottom of the connecting layer. A reserved cavity is provided inside the first corrugated layer and the second corrugated layer. A buffer block is installed inside the reserved cavity.

[0008] Preferably, positioning blocks are fixedly connected to both sides of the buffer block, and a positioning groove is provided inside the reserved cavity, with the positioning blocks embedded inside the positioning groove.

[0009] Preferably, the support interlayer is provided in two sets, and the support interlayer is provided at the top and bottom of the main cardboard.

[0010] Preferably, the first corrugated layer and the second corrugated layer are made of the same material, and the first corrugated layer and the second corrugated layer are installed at the top and bottom of the main cardboard.

[0011] Preferably, the side of the limiting cardboard is attached to the side of the thickened cardboard, and the flame-retardant layer is disposed below the waterproof layer.

[0012] Preferably, a connecting rod is fixedly connected to the top and bottom of one side of the limiting cardboard, a splicing block is fixedly connected to one side of the connecting rod, a rubber pad is fixedly connected to one side of the splicing block, and a splicing slot is provided inside the connecting block.

[0013] Preferably, one side of the splicing block is embedded inside the splicing slot, and the rubber pad is in contact with the inner wall of the splicing slot.

[0014] Preferably, the drying layer contains drying particles, and the drying layer is disposed inside the limiting cardboard.

[0015] Compared with the prior art, the beneficial effects of this utility model are: this heavy-duty waterproof corrugated cardboard not only achieves the function of enhancing support strength and waterproof and moisture-proof functions, but also achieves the function of easy disassembly and recycling.

[0016] (1) By setting a first support block, a first corrugated layer, a support interlayer, a second support block, a second corrugated layer and a buffer block, the top and bottom ends of the main cardboard are both equipped with a first corrugated layer and a second corrugated layer. The four sets of corrugated layers and the main cardboard form a five-layer support structure. The buffer blocks inside the first corrugated layer and the second corrugated layer have a strong support and buffering effect. When the cardboard is compressed, the first corrugated layer, the second corrugated layer and the buffer block can support it. This structure realizes the function of enhancing the support strength of the cardboard.

[0017] (2) By setting up a thermal insulation layer, a thickened cardboard, a flame retardant layer and a waterproof layer, the waterproof layer on the thickened cardboard has a waterproof effect, the thermal insulation layer has a heat insulation effect, the thickness of the thickened cardboard has a certain buffering effect, the thickened cardboard and the limiting cardboard work together to achieve the function of waterproof and moisture-proof, and the dry particles on the limiting cardboard can prevent the cardboard from getting damp and softening. This structure achieves the functions of waterproof, moisture-proof and heat insulation.

[0018] (3) By setting up limiting cardboard, drying layer, connecting rod, splicing block, rubber pad and splicing slot, the limiting cardboard is installed on both sides of the thickened cardboard and the main cardboard. When installing the limiting cardboard, the splicing block on one side needs to be inserted into the splicing slot. The rubber pad on the splicing block can improve the stability of splicing. The wax layer and drying layer on the limiting cardboard have the functions of waterproofing and moisture removal. The limiting cardboard can be disassembled and recycled from the main cardboard. When recycling, the splicing block can be taken out from the splicing slot. This structure realizes the function of board disassembly and recycling. Attached Figure Description

[0019] Figure 1 This is a frontal cross-sectional view of the present invention.

[0020] Figure 2 This is a front view cross-sectional structural diagram of the limiting cardboard of this utility model;

[0021] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This is a front view cross-sectional structural diagram of the thickened cardboard of this utility model.

[0023] In the diagram: 1. Limiting cardboard; 2. Main cardboard; 3. First support block; 4. Connecting cardboard; 5. Insulation layer; 6. Thickened cardboard; 7. First corrugated layer; 8. Support interlayer; 9. Flame retardant layer; 10. Second support block; 11. Second corrugated layer; 12. Waterproof layer; 13. Wax coating layer; 14. Drying layer; 15. Connecting rod; 16. Splicing block; 17. Rubber pad; 18. Drying granules; 19. Positioning block; 20. Connecting layer; 21. Positioning groove; 22. Buffer block; 23. Reserved cavity; 24. Splicing slot; 25. Connecting block. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figure 1-4A heavy-duty waterproof corrugated cardboard includes a main cardboard 2, with thickened cardboard 6 at the top and bottom of the main cardboard 2. Two sets of thickened cardboard 6 are provided. Limiting cardboard 1 is installed on both sides of the thickened cardboard 6. A thermal insulation layer 5 is glued to the bottom of the thickened cardboard 6. A connecting cardboard 4 is glued to the bottom of the thermal insulation layer 5. A supporting interlayer 8 is provided between the connecting cardboard 4 and the main cardboard 2. A wax coating layer 13 is provided on the outside of the limiting cardboard 1. A drying layer 14 is provided on the inside of the wax coating layer 13. A waterproof layer 12 is provided at the top of the thickened cardboard 6. A flame-retardant layer 9 is provided at the bottom of the waterproof layer 12. Connecting blocks 25 are provided on both sides of the thickened cardboard 6. A supporting component is provided between the supporting interlayers 8.

[0026] The support assembly includes a first corrugated layer 7 and a second corrugated layer 11. A first support block 3 and a second support block 10 are fixedly connected to both sides inside the support interlayer 8. A connecting layer 20 is fixedly connected between the first support block 3 and the second support block 10. The first corrugated layer 7 and the second corrugated layer 11 are respectively installed at the top and bottom of the connecting layer 20. A reserved cavity 23 is provided inside the first corrugated layer 7 and the second corrugated layer 11. A buffer block 22 is installed inside the reserved cavity 23.

[0027] Positioning blocks 19 are fixedly connected to both sides of the buffer block 22. The interior of the reserved cavity 23 is provided with a positioning groove 21. The positioning blocks 19 are embedded in the interior of the positioning groove 21. Two sets of support interlayer 8 are provided. The support interlayer 8 is set at the top and bottom of the main cardboard 2. The first corrugated layer 7 and the second corrugated layer 11 are made of the same material. The first corrugated layer 7 and the second corrugated layer 11 are installed at the top and bottom of the main cardboard 2.

[0028] Specifically, such as Figure 1 and Figure 3 As shown, the top and bottom of the main cardboard 2 are equipped with a first corrugated layer 7 and a second corrugated layer 11. The four sets of corrugated layers form a five-layer support structure with the main cardboard 2. The buffer block 22 inside the first corrugated layer 7 and the second corrugated layer 11 has a strong support and buffering effect. When the cardboard is compressed, the first corrugated layer 7, the second corrugated layer 11 and the buffer block 22 can support it.

[0029] Example 2: The side of the limiting cardboard 1 is attached to the side of the thickened cardboard 6, and the flame retardant layer 9 is disposed below the waterproof layer 12;

[0030] Specifically, such as Figure 1 and Figure 4 As shown, the waterproof layer 12 has a waterproof effect, the thermal insulation layer 5 has a heat insulation effect, the thickened cardboard 6 has a certain cushioning effect, and the thickened cardboard 6 and the limiting cardboard 1 work together to achieve the functions of waterproof and moisture-proof. The dry particles 18 on the limiting cardboard 1 can prevent the cardboard from getting damp and softening.

[0031] Example 3: A connecting rod 15 is fixedly connected to the top and bottom of one side of the limiting cardboard 1. A splicing block 16 is fixedly connected to one side of the connecting rod 15. A rubber pad 17 is fixedly connected to one side of the splicing block 16. A splicing groove 24 is provided inside the connecting block 25. One side of the splicing block 16 is embedded inside the splicing groove 24. The rubber pad 17 is in contact with the inner wall of the splicing groove 24. Drying particles 18 are provided inside the drying layer 14. The drying layer 14 is provided inside the limiting cardboard 1.

[0032] Specifically, such as Figure 1 and Figure 2 As shown, when installing the limiting cardboard 1, the splicing block 16 on one side needs to be inserted into the splicing slot 24. The rubber pad 17 on the splicing block 16 can improve the stability of the splicing. The wax layer 13 and the drying layer 14 on the limiting cardboard 1 have waterproof and moisture-proof functions. The limiting cardboard 1 can be removed from the main cardboard 2 for recycling. When recycling, the splicing block 16 can be taken out from the splicing slot 24.

[0033] Working principle: In use, corrugated cardboard can be spliced ​​together as needed. The main cardboard 2 inside the corrugated cardboard has a first corrugated layer 7 and a second corrugated layer 11 installed on its exterior. These four corrugated layers form a five-layer support structure with the main cardboard 2. The buffer blocks 22 inside the first corrugated layer 7 and the second corrugated layer 11 have strong support and cushioning effects. When the cardboard is under pressure, the first corrugated layer 7, the second corrugated layer 11, and the buffer blocks 22 can support it, limiting the wax layer 13 and the drying layer 1 on the cardboard 1. 4. It has waterproof and moisture-proof functions. The limiting cardboard 1 can be removed and recycled from the main cardboard 2. When recycling, the splicing card block 16 can be taken out from the splicing card slot 24. The waterproof layer 12 on the thickened cardboard 6 has a waterproof effect, the thermal insulation layer 5 has a heat insulation effect, and the thickness of the thickened cardboard 6 has a certain buffering effect. The thickened cardboard 6 and the limiting cardboard 1 work together to achieve waterproof and moisture-proof functions. The dry particles 18 on the limiting cardboard 1 can prevent the cardboard from getting damp and softening. This structure achieves the functions of waterproof, moisture-proof and heat insulation.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A heavy-duty waterproof corrugated cardboard, comprising a main cardboard (2), characterized in that: The main cardboard (2) is provided with thickened cardboard (6) at the top and bottom. There are two sets of thickened cardboard (6). Limiting cardboard (1) is installed on both sides of the thickened cardboard (6). A thermal insulation layer (5) is glued to the bottom of the thickened cardboard (6). A connecting cardboard (4) is glued to the bottom of the thermal insulation layer (5). A supporting interlayer (8) is provided between the connecting cardboard (4) and the main cardboard (2). A wax coating layer (13) is provided on the outside of the limiting cardboard (1). A drying layer (14) is provided on the inside of the wax coating layer (13). A waterproof layer (12) is provided at the top of the thickened cardboard (6). A flame retardant layer (9) is provided at the bottom of the waterproof layer (12). Connecting blocks (25) are provided on both sides of the thickened cardboard (6). A supporting component is provided between the supporting interlayers (8). The support assembly includes a first corrugated layer (7) and a second corrugated layer (11). A first support block (3) and a second support block (10) are fixedly connected to both sides inside the support interlayer (8). A connecting layer (20) is fixedly connected between the first support block (3) and the second support block (10). The first corrugated layer (7) and the second corrugated layer (11) are respectively installed at the top and bottom of the connecting layer (20). A reserved cavity (23) is provided inside the first corrugated layer (7) and the second corrugated layer (11). A buffer block (22) is installed inside the reserved cavity (23).

2. The heavy-duty waterproof corrugated cardboard according to claim 1, characterized in that: The buffer block (22) is fixedly connected to two sides with positioning blocks (19), and the reserved cavity (23) is provided with a positioning groove (21), and the positioning blocks (19) are embedded in the positioning groove (21).

3. The heavy-duty waterproof corrugated cardboard according to claim 1, characterized in that: The support interlayer (8) is provided in two sets, and the support interlayer (8) is provided at the top and bottom of the main cardboard (2).

4. The heavy-duty waterproof corrugated cardboard according to claim 1, characterized in that: The first corrugated layer (7) and the second corrugated layer (11) are made of the same material, and the first corrugated layer (7) and the second corrugated layer (11) are installed at the top and bottom of the main cardboard (2).

5. The heavy-duty waterproof corrugated cardboard according to claim 1, characterized in that: The side of the limiting cardboard (1) is attached to the side of the thickened cardboard (6), and the flame retardant layer (9) is disposed below the waterproof layer (12).

6. The heavy-duty waterproof corrugated cardboard according to claim 1, characterized in that: A connecting rod (15) is fixedly connected to the top and bottom of one side of the limiting cardboard (1). A splicing block (16) is fixedly connected to one side of the connecting rod (15). A rubber pad (17) is fixedly connected to one side of the splicing block (16). A splicing slot (24) is provided inside the connecting block (25).

7. The heavy-duty waterproof corrugated cardboard according to claim 6, characterized in that: One side of the splicing block (16) is embedded inside the splicing slot (24), and the rubber pad (17) is in contact with the inner wall of the splicing slot (24).

8. The heavy-duty waterproof corrugated cardboard according to claim 1, characterized in that: The drying layer (14) contains drying particles (18), and the drying layer (14) is disposed inside the limiting cardboard (1).

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