Multi-layer grey paperboard and grey paperboard shell

Abstract

The utility model relates to a multi-layer grey paperboard and a grey paperboard shell, and relates to the technical field of grey paperboards, the embodiment of the utility model provides a multi-layer grey paperboard, which comprises a two-layer grey paperboard body and a support layer, the support layer comprises a first support plate and a second support plate, the first support plate is S-shaped, the second support plate is S-shaped, and the first support plate is S-shaped. The two faces of the first supporting plate are bonded with the two layers of grey paperboard bodies respectively, one end of the second supporting plate is bonded with the grey paperboard bodies, and the other end of the second supporting plate is bonded with the first supporting plate. By means of the supporting effect of the supporting layer on the gray paperboard shell, the probability that the packaging protection performance is affected due to damage in the using process is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of grey paperboard, and in particular to a multi-layer grey paperboard and a grey paperboard shell. Background Art

[0002] Gray cardboard is a material widely used in packaging, transportation and industrial fields. It is made of multiple layers of gray cardboard, has good load-bearing capacity and compression resistance, and is suitable for making cartons, paper boxes and other packaging containers of various sizes and shapes.

[0003] At present, the Chinese utility model patent application with the publication date of January 11, 2022 and the publication number of CN212611687U provides a multi-layer gray cardboard paper shell, which belongs to the field of gray cardboard, including a cardboard body, the interior of the cardboard body is evenly provided with cavities, the interior of the cavity is filled with insect repellent, and both sides of the outer surface of the cardboard body are fixedly installed with an insect repellent coating with a thickness of 1mm, and the outer surface of the insect repellent coating is fixedly installed with a waterproof coating with a thickness of 1mm, and the outer surface of the waterproof coating is fixedly installed with a waterproof film. The environmentally friendly deinked slag high-ash content and high-thickness gray cardboard can prevent the cardboard body from being damaged by insects during storage through the insect repellent coating and insect repellent, thereby improving the insect-proof effect.

[0004] The multi-layer grey cardboard paperboard in the related art has low support and toughness, and is weak in tearing and puncture resistance when the grey cardboard is actually used. It is easy to be damaged during transportation, storage or use, affecting the protective performance of the packaging.

[0005] Therefore be necessary to provide a kind of multi-layer grey paperboard and grey paperboard paper shell to solve the above-mentioned problem. Utility Model Content

[0006] In order to improve the support of multi-layer grey paperboard and reduce the probability of the grey paperboard being damaged during transportation, storage or use due to its low toughness, thus affecting the protective performance of the packaging, the utility model provides a multi-layer grey paperboard and a grey paperboard shell.

[0007] In a first aspect, an embodiment of the present application provides a multi-layer grey cardboard, comprising: two layers of grey cardboard bodies and a support layer, wherein the support layer comprises a first support plate and a second support plate, wherein the first support plate is S-shaped, wherein two sides of the first support plate are respectively bonded to the two layers of grey cardboard bodies, one end of the second support plate is bonded to the grey cardboard bodies, and the other end of the second support plate is bonded to the first support plate.

[0008] A multi-layer gray cardboard provided in an embodiment of the present application is bonded to the gray cardboard body by a first support plate and a second support plate during transportation, storage or use, thereby enhancing the support of the multi-layer gray cardboard and reducing the probability of damage during use and affecting the protective performance of the packaging.

[0009] The above-mentioned technical scheme in the embodiment of the present application has at least the following technical effects: during the transportation, storage or use of a multi-layer grey cardboard, the supporting layer supports the outer shell of the grey cardboard, thereby reducing the probability of damage during use and affecting the protective performance of the packaging.

[0010] In some embodiments, a filling cavity is formed between the first support plate, the second support plate and the two gray paperboard bodies, and the filling cavity is filled with glass wool.

[0011] In some embodiments, an insect repellent coating is provided on a side of the grey paperboard body away from the supporting layer, and a waterproof layer is provided on a side of the insect repellent coating away from the grey paperboard.

[0012] In the second aspect, a gray cardboard paper shell provided in an embodiment of the present application uses the multi-layer gray cardboard described in the first aspect, and also includes a paper shell body and a panel assembly, wherein the paper shell body includes a first panel surface, a second panel surface and a connecting panel, and the panel assembly includes a first blocking plate, a second blocking plate, two side panels, and two folding panels, wherein the first panel surface, the second panel surface and the connecting panel are integrally formed, the first blocking plate is rotatably connected to an end of the first panel surface away from the second panel surface, the second blocking plate is rotatably connected to an end of the second panel surface away from the first panel surface, the two folding panels are rotatably connected to the two ends of the first panel surface, the two side panels are rotatably connected to the two ends of the second panel surface, and both ends of the connecting panel and the first blocking plate are rotatably connected with short panels.

[0013] In some embodiments, both ends of the first blocking plate and the two side plates are chamfered.

[0014] In some embodiments, a connection hole is formed on the first blocking plate, and a snap-fit ​​buckle is provided on the second blocking plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 A schematic cross-sectional view of a multi-layer grey paperboard provided in Example 1 of the present application;

[0017] Figure 2 A schematic diagram of the planar structure of a grey cardboard paper shell provided in Example 2 of the present application;

[0018] Figure 3A schematic diagram of the assembly structure of a grey cardboard paper shell provided in Example 2 of the present application;

[0019] 1. Gray cardboard body; 2. Support layer; 21. First support plate; 22. Second support plate; 3. Insect repellent coating; 4. Waterproof layer; 5. Glass wool; 6. Plate assembly; 61. First blocking plate; 62. Second blocking plate; 63. Side plate; 64. Folding plate; 65. Short plate; 7. Paper shell body; 71. Second board surface; 72. Connecting plate; 73. First board surface; 8. Connecting hole; 9. Snap buckle. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0023] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0026] It should be noted that, in the present application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] Gray cardboard is a material widely used in packaging, transportation and industrial fields. It is made of multiple layers of gray cardboard, has good load-bearing capacity and compression resistance, and is suitable for making cartons, paper boxes and other packaging containers of various sizes and shapes.

[0028] At present, the Chinese utility model patent application with the publication date of January 11, 2022 and the publication number of CN212611687U provides a multi-layer gray cardboard paper shell, which belongs to the field of gray cardboard, including a cardboard body, the interior of the cardboard body is evenly provided with cavities, the interior of the cavity is filled with insect repellent, and both sides of the outer surface of the cardboard body are fixedly installed with an insect repellent coating with a thickness of 1mm, and the outer surface of the insect repellent coating is fixedly installed with a waterproof coating with a thickness of 1mm, and the outer surface of the waterproof coating is fixedly installed with a waterproof film. The environmentally friendly deinked slag high-ash content and high-thickness gray cardboard can prevent the cardboard body from being damaged by insects during storage through the insect repellent coating and insect repellent, thereby improving the insect-proof effect.

[0029] The multi-layer grey cardboard and grey cardboard shell in the related art have low support and toughness, and weak tear and puncture resistance when the grey cardboard is actually used. It is easy to be damaged during transportation, storage or use, affecting the protective performance of the packaging.

[0030] Based on this, in order to improve the problem in the related technology that when the gray cardboard is actually used, the gray cardboard has low support, low toughness, weak tear and puncture resistance, and is damaged during transportation, storage or use, which affects the protective performance of the packaging, the utility model provides a multi-layer gray cardboard and a gray cardboard paper shell, and the embodiments of the present application provide the following solutions.

[0031] Example 1, see Figure 1 The embodiment of the present application provides a multi-layer gray paperboard, which includes: two layers of gray paperboard bodies 1 and a support layer 2, wherein the support layer 2 includes a first support plate 21 and a second support plate 22, wherein the first support plate 21 is in an S-shape, wherein both sides of the first support plate 21 are respectively bonded to the two layers of gray paperboard bodies 1, wherein one end of the second support plate 22 is bonded to the gray paperboard body 1, and the other end of the second support plate 22 is bonded to the first support plate 21. A filling cavity is formed between the first support plate 21, the second support plate 22 and the two gray paperboard bodies 1, wherein the filling cavity is filled with glass wool 5, wherein an insect repellent coating 3 is fixedly connected to one side of the gray paperboard body 1 away from the support layer 2, and a waterproof layer 4 is fixedly connected to one side of the insect repellent coating 3 away from the gray paperboard.

[0032] In this arrangement, the support of the grayboard body 1 by the first support plate 21 and the second support plate 22 can improve the support of the grayboard paper shell, thereby reducing the probability of damage during use and affecting the protective performance of the packaging. A waterproof layer 4 and an insect repellent coating 3 are added to the multi-layer grayboard. The waterproof layer 4 can effectively prevent moisture penetration and protect the packaging contents from moisture or water damage. The insect repellent coating 3 helps to maintain the quality of the product and avoid damage or contamination caused by insect pests. Through the low thermal conductivity and porous structure of the glass wool 5, the glass wool can effectively reduce the loss of heat and can significantly improve the overall thermal insulation effect, thereby providing thermal insulation protection for the packaging contents in the grayboard.

[0033] Example 2, a gray cardboard paper shell provided in the present application example, see Figures 2 to 3 , including a paper shell body 7 and a plate assembly 6, the paper shell body 7 includes a first plate surface 73, a second plate surface 71 and a connecting plate 72, the plate assembly 6 includes a first blocking plate 61, a second blocking plate 62, two side plates 63, and two folding plates 64, the first plate surface 73, the second plate surface 71 and the connecting plate 72 are integrally formed, the first blocking plate 61 is rotatably connected to one end of the first plate surface 73 away from the second plate surface 71, the second blocking plate 62 is rotatably connected to one end of the second plate surface 71 away from the first plate surface 73, the two folding plates 64 are rotatably connected to the two ends of the first plate surface 73, the two side plates 63 are rotatably connected to the two ends of the second plate surface 71, and the two ends of the connecting plate 72 and the two ends of the first blocking plate 61 are rotatably connected with short plates 65.

[0034] With such arrangement, when assembling the gray cardboard paper shell, by folding the first board surface 73 and the connecting board 72 to form ninety degrees, rotating the short board 65 to form ninety degrees with the connecting board 72 and the first blocking board 61, rotating the first blocking board 61 and the second blocking board 62 to form ninety degrees with the first board surface 73 and the second board surface 71, rotating the two folding boards 64 at both ends of the first board surface 73, folding the short board 65 into the folding board 64, rotating the two side boards 63 to be perpendicular to the second board surface 71, folding the connecting board 72 to the second board surface 71 to form ninety degrees, the first board surface 73 is parallel to the second board surface 71, and the side board 63 is inserted into the folding board 64, connecting the buckles, so that the gray cardboard paper shell is formed.

[0035] In some embodiments, see Figures 2 to 3 Both ends of the first blocking plate 61 and the two side plates 63 are chamfered.

[0036] Such arrangement facilitates the installation of the grey cardboard carton during the packaging process.

[0037] See also Figures 2 to 3 The first blocking plate 61 is provided with a connecting hole 8 , and the second blocking plate 62 is provided with a snap-fit ​​buckle 9 .

[0038] In this way, the design of the snap-fit ​​buckle 9 on the gray cardboard shell allows the packaging box to be quickly closed and opened without the need for additional tools or materials, such as tape, rope, etc., greatly improving the convenience of packaging. The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-layer grey paperboard, characterized in that: The invention comprises a two-layer grey paperboard body (1) and a support layer (2), wherein the support layer (2) comprises a first support plate (21) and a second support plate (22), wherein the first support plate (21) is in an S-shape, wherein two surfaces of the first support plate (21) are respectively bonded to the two-layer grey paperboard body (1), one end of the second support plate (22) is bonded to the grey paperboard body (1), and the other end of the second support plate (22) is bonded to the first support plate (21).

2. A multi-layer grey paperboard according to claim 1, characterized in that: A filling cavity is formed between the first support plate (21), the second support plate (22) and the two grey paperboard bodies (1), and the filling cavity is filled with glass wool (5).

3. A multi-layer grey paperboard according to claim 2, characterized in that: An insect repellent coating (3) is provided on the side of the grey paperboard body (1) away from the support layer (2), and a waterproof layer (4) is provided on the side of the insect repellent coating (3) away from the grey paperboard.

4. A grey paperboard shell, using the multi-layer grey paperboard according to any one of claims 1 to 3, characterized in that: The invention also comprises a paper shell body (7) and a plate assembly (6), wherein the paper shell body (7) comprises a first plate surface (73), a second plate surface (71) and a connecting plate (72), and the plate assembly (6) comprises a first blocking plate (61), a second blocking plate (62), two side plates (63) and two folding plates (64), wherein the first plate surface (73), the second plate surface (71) and the connecting plate (72) are integrally formed, wherein the first blocking plate (61) is rotatably connected to an end of the first plate surface (73) away from the second plate surface (71), and the second blocking plate (62) is rotatably connected to an end of the second plate surface (71) away from the first plate surface (73), and the two folding plates (64) are rotatably connected to the two ends of the first plate surface (73), and the two side plates (63) are rotatably connected to the two ends of the second plate surface (71), and the two ends of the connecting plate (72) and the two ends of the first blocking plate (61) are rotatably connected to short plates (65).

5. The grey paperboard shell according to claim 4, characterized in that: Both ends of the first blocking plate (61) and the two side plates (63) are provided with chamfers.

6. The grey paperboard shell according to claim 5, characterized in that: The first blocking plate is provided with a connection hole (8), and the second blocking plate (62) is provided with a snap-fit ​​buckle (9).

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