A multi-layered composite paperboard

Abstract

The utility model discloses a multilayer composite paperboard, including core plate and the top plate and bottom plate of setting in the both sides of core plate, be provided with outer layer wave paper layer between core plate and top plate, be provided with inner layer wave paper layer between core plate and bottom plate, be provided with first pressure -resisting structure between top plate and outer layer wave paper layer, be provided with second pressure -resisting structure between bottom plate and inner layer wave paper layer, the height value of outer layer wave paper layer is less than the height value of inner layer wave paper layer, make first pressure -resisting structure on outer layer wave paper layer bear more external pressure, make the article of bottom plate inside better be protected, and first pressure -resisting structure includes outer protective shell and sets up the outer slide cylinder of outer protective shell one side. The multilayer composite corrugated paperboard, through the first pressure -resisting structure and second pressure -resisting structure of setting, the article of inner layer wave paper layer inside can be better protected, and the probability of article deformation or damage because of being pressed is lower.

Description

Technical Field

[0001] This utility model relates to a type of paperboard, specifically a multi-layer composite paperboard. Background Technology

[0002] There are many types of cardboard, including corrugated cardboard. Corrugated cardboard is a multi-layered packaging material, mainly composed of one or more layers of cardboard bonded together with corrugated paper. It has advantages such as low cost, light weight, easy processing, and good structural performance. Furthermore, it is biodegradable and recyclable, making it highly popular.

[0003] The two corrugated paper layers of existing corrugated cardboard usually have no special characteristics. They are just two corrugated paper layers with the same structure. There are no structures to reinforce or cushion the corrugated paper. As a result, the corrugated paper will collapse quickly when subjected to pressure, causing the items it is supposed to protect to deform or be damaged by the pressure. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-layer composite paperboard. By setting a first compression-resistant structure between the top plate and the outer corrugated paper layer, the first compression-resistant structure can withstand greater pressure, while the second compression-resistant structure and the items inside it are subjected to less pressure. This allows the items inside the inner corrugated paper layer to be better protected, and the probability of the items being deformed or damaged due to pressure is lower.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer composite paperboard, comprising a core board and a top plate and a bottom plate disposed on both sides of the core board, an outer corrugated paper layer disposed between the core board and the top plate, an inner corrugated paper layer disposed between the core board and the bottom plate, a first compression-resistant structure disposed between the top plate and the outer corrugated paper layer, and a second compression-resistant structure disposed between the bottom plate and the inner corrugated paper layer. The height of the outer corrugated paper layer is less than the height of the inner corrugated paper layer, so that the first compression-resistant structure on the outer corrugated paper layer can withstand more external pressure. The first compression-resistant structure includes an outer protective shell and a bottom plate disposed on the outer corrugated paper layer. The outer sliding cylinder on one side of the protective shell, both the outer protective shell and the outer sliding cylinder are hollow cavity structures with an opening at one end, and the cavities of the outer protective shell and the outer sliding cylinder are arranged facing each other. A slider is provided in the cavity of the outer protective shell, and a first spring is connected to the inner wall of the cavity of the outer sliding cylinder. The first spring is fixedly connected to the slider. The second anti-pressure structure includes an inner protective shell, which is a hollow cavity structure with an opening at one end. A second spring and an anti-pressure block are provided in the cavity of the inner protective shell. The two ends of the second spring are respectively connected to the inner protective shell and the anti-pressure block. A bladder and a gasket are arranged in sequence at the end of the anti-pressure block away from the second spring.

[0006] Preferably, the outer corrugated paper layer includes several upper outer protrusions and several lower outer protrusions, the upper outer protrusions and the lower outer protrusions are arranged crosswise and connected to each other, the outer protective shell is fixed to the top plate, and the outer sliding cylinder is fixed to the lower outer protrusion.

[0007] Preferably, the inner corrugated paper layer includes several upper inner protrusions and several lower inner protrusions, the upper inner protrusions and the lower inner protrusions are arranged crosswise and connected to each other, the inner protective shell is fixed on the upper inner protrusions, and the gasket is attached to the base plate.

[0008] Preferably, the two ends of the slider are respectively disposed in the outer protective shell cavity and the outer slide cylinder cavity, and the slider is respectively attached to the inner wall of the outer protective shell cavity and the inner wall of the outer slide cylinder cavity.

[0009] Preferably, the bladder body includes a concave air bladder and extended air bladders disposed at both ends of the concave air bladder, the upper end face of the concave air bladder is arc-shaped, and the concave air bladder is connected to the anti-compression block.

[0010] Preferably, the end of the capsule away from the pressure-resistant block is embedded in the gasket, and the capsule and the gasket are fixedly connected.

[0011] Preferably, multiple sets of the first and second compressive strength structures are provided, and the multiple sets of the first compressive strength structures are distributed in a straight line at equal intervals on the core board.

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

[0013] This invention provides a first pressure-resistant structure between the top plate and the outer corrugated paper layer, and a second pressure-resistant structure between the bottom plate and the inner corrugated paper layer. The first and second pressure-resistant structures work together to provide double buffering against the pressure on the outer corrugated paper layer. At the same time, because the height of the first pressure-resistant structure is smaller than that of the second pressure-resistant structure, the first pressure-resistant structure can withstand greater pressure, while the second pressure-resistant structure and the items inside it are subjected to less pressure. This provides better protection for the items inside the inner corrugated paper layer, and reduces the probability of the items deforming or being damaged due to pressure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0015] Figure 2 This utility model Figure 1 Sectional view of AA;

[0016] Figure 3 This utility model Figure 2 Enlarged view of B in the middle;

[0017] Figure 4 This is a schematic diagram of the capsule of this utility model.

[0018] The reference numerals and names in the figure are as follows: 1. Core board; 2. Top plate; 3. Bottom plate; 4. Outer corrugated paper layer; 41. Outer upper convex part; 42. Outer lower convex part; 5. Inner corrugated paper layer; 51. Inner upper convex part; 52. Inner lower convex part; 6. First anti-compression structure; 61. Outer protective shell; 62. Outer slide cylinder; 63. First spring; 64. Slider; 7. Second anti-compression structure; 71. Inner protective shell; 72. Second spring; 73. Anti-compression block; 74. Bag body; 741. Concave airbag; 742. Expanding airbag; 75. Gasket. Detailed Implementation

[0019] 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.

[0020] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0022] Please see Figures 1 to 2One embodiment of this utility model is a multi-layer composite paperboard, comprising a core board 1 and a top plate 2 and a bottom plate 3 disposed on both sides of the core board 1.

[0023] Please see Figure 3 An outer corrugated paper layer 4 is provided between the core board 1 and the top board 2, and an inner corrugated paper layer 5 is provided between the core board 1 and the bottom board 3. Multiple sets of first compression-resistant structures 6 are provided between the top board 2 and the outer corrugated paper layer 4, and multiple sets of second compression-resistant structures 7 are provided between the bottom board 3 and the inner corrugated paper layer 5. The height of the first compression-resistant structure 6 is less than the height of the second compression-resistant structure 7, so that the first compression-resistant structure 6 on the outer corrugated paper layer 4 can withstand more external pressure, and the second compression-resistant structure 7 can withstand less pressure, so that the items inside the bottom board 3 are better protected.

[0024] The outer corrugated paper layer 4 includes several upper outer protrusions 41 and several lower outer protrusions 42, which are arranged intersectingly and connected to each other.

[0025] The inner corrugated paper layer 5 includes several upper inner protrusions 51 and several lower inner protrusions 52, which are arranged intersectingly and connected to each other.

[0026] The first pressure-resistant structure 6 includes an outer protective shell 61 and an outer sliding cylinder 62 disposed on one side of the outer protective shell 61. The outer protective shell 61 is fixed to the top plate 2, and the outer sliding cylinder 62 is fixed to the lower outer protrusion 42. Both the outer protective shell 61 and the outer sliding cylinder 62 are hollow cavity structures with an opening at one end, and the cavities of the outer protective shell 61 and the outer sliding cylinder 62 are arranged facing each other. A slider 64 is disposed in the cavity of the outer protective shell 61, and a first spring 63 is connected to the inner wall of the cavity of the outer sliding cylinder 62. The first spring 63 and the slider 64 are connected to the inner wall of the cavity of the outer sliding cylinder 62. Block 64 is fixedly connected. The two ends of slider 64 are respectively set in the cavity of outer protective shell 61 and outer slide cylinder 62. Slider 64 is in contact with the inner wall of the cavity of outer protective shell 61 and the inner wall of the cavity of outer slide cylinder 62. When the top plate 2 is subjected to pressure, the pressure is directly transmitted to multiple sets of first anti-pressure structures 6, so that multiple outer protective shells 61 are subjected to pressure and squeeze multiple sliders 64. Multiple sliders 64 will squeeze multiple first springs 63, so that the pressure is transmitted to the outer corrugated paper layer 4 and core plate 1 through multiple outer slide cylinders 62.

[0027] The second pressure-resistant structure 7 includes an inner protective shell 71, which is fixed to the inner layer upper protrusion 51. The inner protective shell 71 is a hollow cavity structure with an opening at one end. A second spring 72 and a pressure-resistant block 73 are provided inside the cavity of the inner protective shell 71. The two ends of the second spring 72 are connected to the inner protective shell 71 and the pressure-resistant block 73, respectively. At the end of the pressure-resistant block 73 away from the second spring 72, a bladder 74 and a gasket 75 are arranged in sequence. The end of the bladder 74 away from the pressure-resistant block 73 is embedded in the gasket 75, and the bladder 74 and the gasket 75 are fixedly connected. The gasket 75 is attached to the bottom plate 3. In addition, multiple sets of first pressure-resistant structures 6 are distributed in a straight line at equal intervals on the core plate 1. Similarly, multiple sets of second pressure-resistant structures 7 are also distributed in a straight line at equal intervals.

[0028] Please see Figure 4 The bladder 74 includes a concave air bladder 741 and extended air bladders 742 disposed at both ends of the concave air bladder 741. The upper end face of the concave air bladder 741 is arc-shaped, and the concave air bladder 741 is connected to the anti-pressure block 73. When the core plate 1 is subjected to pressure, the pressure is transmitted to multiple second springs 72 and multiple anti-pressure blocks 73 through multiple inner protective shells 71, so that multiple bladders 74 are subjected to pressure and squeeze multiple pads 75. Since the concave air bladder 741 is concave, it is subjected to pressure first and diffuses the pressure toward the extended air bladders 742 at both ends, so that the pads 75 are subjected to pressure and spread out. The spread of multiple pads 75 achieves pressure dispersion, so that the items on the side of the bottom plate 3 away from the core plate 1 are subjected to less pressure.

[0029] 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 multi-layer composite paperboard, characterized in that: Includes a core plate (1) and a top plate (2) and a bottom plate (3) disposed on both sides of the core plate (1); An outer corrugated paper layer (4) is provided between the core board (1) and the top plate (2), and an inner corrugated paper layer (5) is provided between the core board (1) and the bottom plate (3). A first compression-resistant structure (6) is provided between the top plate (2) and the outer corrugated paper layer (4), and a second compression-resistant structure (7) is provided between the bottom plate (3) and the inner corrugated paper layer (5). The height of the outer corrugated paper layer (4) is less than the height of the inner corrugated paper layer (5). The first pressure-resistant structure (6) includes an outer protective shell (61) and an outer sliding cylinder (62) disposed on one side of the outer protective shell (61). The outer protective shell (61) and the outer sliding cylinder (62) are both hollow cavity structures with an opening at one end. The cavity of the outer protective shell (61) and the cavity of the outer sliding cylinder (62) are arranged facing each other. A slider (64) is disposed in the cavity of the outer protective shell (61). A first spring (63) is connected to the inner wall of the cavity of the outer sliding cylinder (62). The first spring (63) is fixedly connected to the slider (64). The second pressure-resistant structure (7) includes an inner protective shell (71), which is a hollow cavity structure with an opening at one end. A second spring (72) and a pressure-resistant block (73) are provided in the cavity of the inner protective shell (71). The two ends of the second spring (72) are connected to the inner protective shell (71) and the pressure-resistant block (73) respectively. A bladder (74) and a gasket (75) are arranged in sequence at the end of the pressure-resistant block (73) away from the second spring (72).

2. The multi-layer composite paperboard according to claim 1, characterized in that: The outer corrugated paper layer (4) includes several upper outer protrusions (41) and several lower outer protrusions (42). The upper outer protrusions (41) and the lower outer protrusions (42) are arranged crosswise and connected to each other. The outer protective shell (61) is fixed on the top plate (2), and the outer sliding cylinder (62) is fixed on the lower outer protrusions (42).

3. The multi-layer composite paperboard according to claim 1, characterized in that: The inner corrugated paper layer (5) includes several upper inner protrusions (51) and several lower inner protrusions (52). The upper inner protrusions (51) and the lower inner protrusions (52) are arranged crosswise and connected to each other. The inner protective shell (71) is fixed on the upper inner protrusions (51). The gasket (75) is attached to the base plate (3).

4. The multi-layer composite paperboard according to claim 1, characterized in that: The two ends of the slider (64) are respectively located in the cavity of the outer protective shell (61) and the cavity of the outer slide cylinder (62), and the slider (64) is respectively attached to the inner wall of the cavity of the outer protective shell (61) and the inner wall of the cavity of the outer slide cylinder (62).

5. The multi-layer composite paperboard according to claim 1, characterized in that: The bladder (74) includes a concave air bladder (741) and an expansion air bladder (742) disposed at both ends of the concave air bladder (741). The upper end face of the concave air bladder (741) is arc-shaped, and the concave air bladder (741) is connected to the anti-pressure block (73).

6. The multi-layer composite paperboard according to claim 1, characterized in that: The end of the capsule (74) away from the pressure-resistant block (73) is embedded in the gasket (75), and the capsule (74) and the gasket (75) are fixedly connected.

7. The multi-layer composite paperboard according to claim 1, characterized in that: The first compression-resistant structure (6) and the second compression-resistant structure (7) are provided in multiple sets, and the multiple sets of the first compression-resistant structure (6) are distributed in a straight line at equal intervals on the core board (1).

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