Upper and lower double-layer type paperboard packaging box

Abstract

The utility model discloses an upper and lower double-layer type paperboard packaging box which comprises a middle base plate, and the middle base plate is of a paper board body structure. An upper-layer thick plate protruding upwards is arranged on the upper end face of the middle base plate, and an upper-layer packaging groove extending downwards is formed in the upper-layer thick plate; a lower layer thick plate protruding downwards is arranged on the lower end face of the middle base plate, and a lower layer packaging groove extending upwards is formed in the lower layer thick plate. The upper-layer thick plate and the lower-layer thick plate are arranged on the middle base plate and provided with the packaging grooves, the upper packaging grooves and the lower packaging grooves can be used for containing products, the packaging capacity is effectively improved, and the packaging capacity is increased; buffering parts are arranged on the side walls of the groove bodies of the upper-layer packaging groove and the lower-layer packaging groove, so that the buffering performance after a product is placed can be effectively improved, the product is effectively protected, and the safety is improved; an upper cover plate and a lower cover plate are arranged at the upper position and the lower position in the device, the sealing performance of the whole structure is effectively improved through the upper cover plate and the lower cover plate, and the sealing performance is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of paperboard packaging, in particular to an upper and lower double-layer paperboard packaging box. Background Art

[0002] In the prior art, cardboard packaging has the technical advantages of low cost, easy recycling and convenient disposal, so many companies use cardboard as packaging.

[0003] For example, the technical solution with the publication (announcement) number CN1045072C discloses a “cardboard packaging box”, which mainly designs the packaging box into an isosceles trapezoidal side area, thereby making the overall packaging box more stable and the structural design more reasonable.

[0004] For example, the technical solution with the publication (announcement) number CN206842077U discloses "a cardboard packaging box", in which a buffer pad is mainly arranged below the storage unit and between the bottom plate of the box body and the storage unit, thereby providing better buffering performance.

[0005] Although the above technical solutions can all achieve product packaging, they all have some disadvantages, such as: the packaging capacity is small, the packaging can only be single-sided packaging, etc.; in addition, there are packaging buffering and sealing problems. Although the existing technology can also ensure the sealing and buffering problems, the specific effects can still be improved.

[0006] Therefore, in order to solve the above problems, it is necessary to develop an upper and lower double-layer paperboard packaging box with a reasonable structure and improved packaging performance. Utility Model Content

[0007] The purpose of the utility model is to provide a double-layer cardboard packaging box to address the deficiencies of the prior art; the technical solution is as follows:

[0008] An upper and lower double-layer paperboard packaging box, comprising an intermediate base plate, the intermediate base plate being configured as a paper plate structure;

[0009] The upper end surface of the intermediate substrate is provided with an upper thick plate protruding upward, and the upper thick plate is provided with an upper packaging groove extending downward;

[0010] The lower end surface of the intermediate substrate is provided with a lower thick plate protruding downward, and the lower thick plate is provided with a lower packaging groove extending upward;

[0011] The bottoms of the upper packaging groove and the lower packaging groove are respectively extended to the position of the middle substrate; and the side walls of the groove bodies of the upper packaging groove and the lower packaging groove are respectively provided with buffer parts in a folded shape, and the products to be packaged are respectively placed in the upper packaging groove and the lower packaging groove, and the side walls of the products are respectively supported by the buffer parts.

[0012] Furthermore, the buffer portion is configured as a circumferentially arranged threaded structure; and the depths of the upper packaging groove and the lower packaging groove are correspondingly arranged to match the product.

[0013] Furthermore, positioning grooves for positioning the product are provided at the bottom of the upper packaging groove and the lower packaging groove, and the positioning grooves are provided at positions that match the buffer portions on the side walls of the groove body.

[0014] Furthermore, the intermediate substrate, the upper thick plate and the lower thick plate are all configured as circular plate structures; and the upper thick plate and the lower thick plate are of the same size.

[0015] Furthermore, a flange portion protruding outward is also provided at the edge of the intermediate substrate, and the flange portion is located on the outer sides of the upper thick plate and the lower thick plate.

[0016] Furthermore, it also includes an upper cover plate and a lower cover plate, wherein the upper cover plate and the lower cover plate are both configured as a U-shaped plate structure, the upper cover plate can cover the upper thick plate as a whole, and the bottom of the upper cover plate is placed on the upper end surface of the flange portion;

[0017] The lower cover plate covers the lower thick plate as a whole, and the bottom of the lower cover plate is placed on the lower end surface of the flange portion. The upper thick plate and the lower layer as well as the inner upper packaging groove and the lower packaging groove are packaged and sealed as a whole through the upper cover plate and the lower cover plate.

[0018] Furthermore, the upper cover plate and the lower cover plate are both configured as paper plate structures.

[0019] Beneficial effects: The utility model has the following beneficial effects:

[0020] 1) The middle substrate of the device is provided with an upper thick plate and a lower thick plate, and the upper and lower thick plates are provided with packaging grooves, and the upper and lower packaging grooves can be used to place products, thereby effectively improving the packaging capacity and increasing the packaging capacity;

[0021] 2) In this device, the upper packaging trough and the lower packaging trough are both provided with a buffer part on their side walls, which can effectively improve the buffering performance after the product is placed, effectively protect the product and improve safety;

[0022] 3) The device is also provided with an upper cover plate and a lower cover plate at the upper and lower positions, which effectively increase the sealing performance of the overall structure, and the sealing performance is greatly improved;

[0023] 4) In order to install the upper cover plate and the lower cover plate accordingly in this device, a flange portion is set at the edge of the middle base plate, and the flange portion can be used to install the upper and lower cover plates, and the structural setting is reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the structural diagram of the utility model;

[0025] Figure 2 for Figure 1 Top view;

[0026] Figure 3 This is a structural diagram of Embodiment 2 of the present utility model;

[0027] Figure 4 This is a diagram of the installation structure of the upper cover plate and the lower cover plate in Example 2. DETAILED DESCRIPTION

[0028] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. The embodiments are implemented based on the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0029] Example 1

[0030] like Figure 1 and Figure 2 As shown, a top-bottom double-layer paperboard packaging box of this embodiment includes an intermediate substrate 1, and the intermediate substrate 1 is configured as a paper board structure;

[0031] In this embodiment, the upper end surface of the intermediate substrate 1 is provided with an upper thick plate 2 protruding upward, and the upper thick plate 2 is provided with an upper packaging groove 3 extending downward;

[0032] In this embodiment, the lower end surface of the intermediate substrate 1 is provided with a lower thick plate 4 protruding downward, and the lower thick plate 4 is provided with a lower packaging groove 5 extending upward;

[0033] In this embodiment, the bottoms of the upper packaging groove 3 and the lower packaging groove 5 are respectively extended to the position of the middle substrate 1; and the side walls of the upper packaging groove 3 and the lower packaging groove 5 are respectively provided with a buffer part 6 in a folded shape, and the products 7 to be packaged are respectively placed in the upper packaging groove 3 and the lower packaging groove 5, and the side walls of the products 7 are respectively supported by the buffer part 6.

[0034] The buffer portion 6 of this embodiment is configured as a circumferentially arranged threaded structure; and the depths of the upper packaging groove 3 and the lower packaging groove 5 are correspondingly arranged to match the product 7 .

[0035] In this embodiment, the bottom of the upper packaging groove 3 and the lower packaging groove 5 are both provided with positioning grooves 8 for positioning the product 7. The positioning grooves 8 are arranged at positions that match the buffer portions 6 on the side walls of the grooves.

[0036] In this embodiment, the intermediate substrate 1 , the upper thick plate 2 and the lower thick plate 4 are all configured as circular plate structures; and the upper thick plate 2 and the lower thick plate 4 are consistent in size.

[0037] The technical solution of this embodiment is mainly to increase the buffering performance of the product and increase the capacity of the overall packaging. First, in this embodiment, thick plates are provided on the upper and lower sides of the middle substrate, and packaging grooves are provided. Products can be placed in the areas of the upper packaging groove and the lower packaging groove. Therefore, its packaging capacity is relatively large. At the same time, the overall structure can be set to a circular or square structure to further increase the capacity.

[0038] In addition, folded buffer portions are provided on the side walls of the upper packaging groove and the lower packaging groove in the device. Specifically, the buffer portion can be set as a surrounding thread structure, so that a lot of gaps are formed on the side walls of the packaging groove. When the product is placed in the packaging groove, there is a certain buffer collision space, which increases the buffer performance and makes the overall structure reasonable.

[0039] Example 2

[0040] like Figure 3 and Figure 4 As shown, a top-bottom double-layer paperboard packaging box of this embodiment includes an intermediate substrate 1, and the intermediate substrate 1 is configured as a paper board structure;

[0041] In this embodiment, the upper end surface of the intermediate substrate 1 is provided with an upper thick plate 2 protruding upward, and the upper thick plate 2 is provided with an upper packaging groove 3 extending downward;

[0042] In this embodiment, the lower end surface of the intermediate substrate 1 is provided with a lower thick plate 4 protruding downward, and the lower thick plate 4 is provided with a lower packaging groove 5 extending upward;

[0043] In this embodiment, the bottoms of the upper packaging groove 3 and the lower packaging groove 5 are respectively extended to the position of the middle substrate 1; and the side walls of the upper packaging groove 3 and the lower packaging groove 5 are respectively provided with a buffer part 6 in a folded shape, and the products 7 to be packaged are respectively placed in the upper packaging groove 3 and the lower packaging groove 5, and the side walls of the products 7 are respectively supported by the buffer part 6.

[0044] The buffer portion 6 of this embodiment is configured as a circumferentially arranged threaded structure; and the depths of the upper packaging groove 3 and the lower packaging groove 5 are correspondingly arranged to match the product 7 .

[0045] In this embodiment, the bottom of the upper packaging groove 3 and the lower packaging groove 5 are both provided with positioning grooves 8 for positioning the product 7. The positioning grooves 8 are arranged at positions that match the buffer portions 6 on the side walls of the grooves.

[0046] In this embodiment, the intermediate substrate 1 , the upper thick plate 2 and the lower thick plate 4 are all configured as circular plate structures; and the upper thick plate 2 and the lower thick plate 4 are consistent in size.

[0047] In this embodiment, a flange portion 9 protruding outward is further provided at the edge of the middle substrate 1 . The flange portion 9 of this embodiment is located outside the upper thick plate 2 and the lower thick plate 4 .

[0048] It also includes an upper cover plate 10 and a lower cover plate 11. The upper cover plate 10 and the lower cover plate 11 of this embodiment are both configured as a U-shaped plate structure. The upper cover plate 10 can cover the upper thick plate 2 as a whole, and the bottom of the upper cover plate 10 is placed on the upper end surface of the flange portion 9.

[0049] The lower cover plate 11 of the present embodiment covers the lower thick plate 4 as a whole, and the bottom of the lower cover plate 11 is placed on the lower end surface of the flange portion 9. The upper thick plate 2 and the lower layer as well as the inner upper packaging groove 3 and the lower packaging groove 5 are packaged and sealed as a whole through the upper cover plate 10 and the lower cover plate 11; the upper cover plate 10 and the lower cover plate 11 of the present embodiment are both set as paper board structures.

[0050] The technical solution of this embodiment is further designed on the basis of the technical solution of embodiment 1. The technical solution of this embodiment mainly arranges an upper cover plate and a lower cover plate to increase the sealing of the overall structure. In order to facilitate the installation of the upper cover plate and the lower cover plate, it is necessary to first arrange an outer flange portion at the position of the middle substrate. The outer flange portion can be used to install the upper cover plate on the upper side and the lower cover plate on the lower side. After the upper cover plate and the lower cover plate are installed at the same time, the packaging groove is surrounded from the top and the bottom as a whole, which can effectively increase the sealing and prevent dust and insects from entering. The overall structure is reasonably arranged.

[0051] The above-mentioned specific implementation mode is only a preferred embodiment of the present invention and is not intended to limit the implementation of the present invention and the scope of the claims. All equivalent changes and modifications made according to the content of the patent protection scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A double-layer cardboard packaging box, characterized in that: It comprises an intermediate substrate (1), wherein the intermediate substrate (1) is configured as a paper board structure; The upper end surface of the intermediate base plate (1) is provided with an upper thick plate (2) protruding upward, and the upper thick plate (2) is provided with an upper packaging groove (3) extending downward; The lower end surface of the intermediate base plate (1) is provided with a lower thick plate (4) protruding downwards, and the lower thick plate (4) is provided with a lower packaging groove (5) extending upwards; The bottoms of the upper packaging groove (3) and the lower packaging groove (5) are respectively extended to the position of the intermediate base plate (1); and the side walls of the upper packaging groove (3) and the lower packaging groove (5) are respectively provided with a buffer portion (6) in a folded shape, and the products (7) to be packaged are respectively placed in the upper packaging groove (3) and the lower packaging groove (5), and the side walls of the products (7) are respectively supported by the buffer portion (6).

2. The upper and lower double-layer cardboard packaging box according to claim 1, characterized in that: The buffer portion (6) is configured as a circumferentially arranged threaded structure; and the depths of the upper packaging groove (3) and the lower packaging groove (5) are correspondingly configured to match the product (7).

3. The upper and lower double-layer cardboard packaging box according to claim 2, characterized in that: The upper packaging groove (3) and the lower packaging groove (5) are both provided with positioning grooves (8) at their bottoms for positioning the product (7), and the positioning grooves (8) are arranged at positions that match the positions of the buffer portions (6) on the side walls of the grooves.

4. The upper and lower double-layer cardboard packaging box according to claim 1, characterized in that: The intermediate base plate (1) and the upper thick plate (2) and the lower thick plate (4) are all configured as circular plate structures; and the upper thick plate (2) and the lower thick plate (4) are of the same size.

5. The upper and lower double-layer cardboard packaging box according to claim 4, characterized in that: The edge of the intermediate base plate (1) is also provided with a flange portion (9) protruding outwards, and the flange portion (9) is located on the outside of the upper thick plate (2) and the lower thick plate (4).

6. The upper and lower double-layer cardboard packaging box according to claim 5, characterized in that: It also includes an upper cover plate (10) and a lower cover plate (11), wherein the upper cover plate (10) and the lower cover plate (11) are both configured as U-shaped plate structures, the upper cover plate (10) can cover the upper thick plate (2) as a whole, and the bottom of the upper cover plate (10) is placed on the upper end surface of the flange portion (9); The lower cover plate (11) covers the lower thick plate (4) as a whole, and the bottom of the lower cover plate (11) is placed on the lower end surface of the flange portion (9). The upper thick plate (2) and the lower layer as well as the inner upper packaging groove (3) and the lower packaging groove (5) are packaged and sealed as a whole through the upper cover plate (10) and the lower cover plate (11).

7. The upper and lower double-layer cardboard packaging box according to claim 6, characterized in that: The upper cover plate (10) and the lower cover plate (11) are both configured as paper plate structures.

Images