Homogeneous double-layer corrugated paper board box for packaging box manufacturing

Abstract

The utility model relates to the technical field of packaging box manufacturing, and discloses a homogeneous double-layer corrugated carton for packaging box manufacturing, which comprises a double-layer corrugated carton body, the top end of the double-layer corrugated carton body is connected with a top cover in a clamping manner, and L-shaped protective plates are attached to four edges of the outer wall of the double-layer corrugated carton body. Four L-shaped protection plates are arranged on the four sides of the outer portion of the double-layer corrugated carton body, bottom plates are fixedly connected to the bottom ends of the four L-shaped protection plates, top plates are rotationally installed in the middles of the top ends of the four L-shaped protection plates, and limiting columns movably penetrate through one corners of the top ends of the four top plates. According to the storage box, deformation or damage in the carrying and stacking process can be prevented, the arranged L-shaped protection plates can absorb and disperse external impact force, particularly in the transporting and carrying process, direct impact and damage to objects in the storage box can be effectively reduced, and therefore the durability of the storage box is improved, and the damage risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of packing box manufacturing, in particular to a homogeneous double-layer corrugated paper cardboard box for packing box manufacturing. Background Art

[0002] A cardboard box is a box used for packing, transporting and storing items, usually made of cardboard. They are widely used as packing boxes in various industries such as logistics, retail, manufacturing and e-commerce, etc. A double-layer corrugated paper cardboard box is a cardboard box composed of two layers of corrugated paper sandwiched between two layers of face paper, which is thicker and stronger than a single-layer corrugated paper cardboard box, and has better compressive strength and impact resistance.

[0003] In the patent with the publication number of CN 218173273 U, a homogeneous double-layer corrugated paper cardboard box for packing box manufacturing is disclosed. This homogeneous double-layer corrugated paper cardboard box for packing box manufacturing not only has a good buffering effect, but also is stable enough to avoid the phenomenon that the cardboard box is easily deformed when being impacted or squeezed during use, has a good protective effect on the items inside it, can also dry the placed items, and has good waterproof performance, reducing the serious deformation or collapse phenomenon caused by the cardboard box being affected by moisture and getting wet.

[0004] Although the above technology can play a buffering role through the support plate and the connecting plate, the buffering structure protects the bottom, and the side without a protective structure is more likely to be impacted and squeezed on the side during transportation or stacking, resulting in deformation, damage or tearing of the cardboard box, and the items inside may be affected by more external forces during transportation, increasing the risk of damage. Therefore, innovation is made on this technology. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a homogeneous double-layer corrugated paper cardboard box for packing box manufacturing to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A homogeneous double-layer corrugated paper cardboard box for packing box manufacturing, including a double-layer corrugated paper box body, a top cover is snap-connected to the top of the double-layer corrugated paper box body, L-shaped protection plates are attached to the four sides of the outer wall of the double-layer corrugated paper box body, bottom plates are fixedly connected to the bottoms of the four L-shaped protection plates, top plates are rotatably installed in the middle of the tops of the four L-shaped protection plates, limiting columns movably penetrate through a corner of the top of each of the four top plates, limiting holes are opened at the four corners of the top of the four top covers, and a part of the outer walls of the four limiting columns is snap-connected to the inner walls of the adjacent limiting holes.

[0007] As a preferred technical solution of the present utility model, inserts are fixedly installed in the middle of the tops of the four bottom plates. Jacks are provided at the four corners of the bottom end of the double-layer corrugated paper box body, and the outer walls of the four inserts are inserted into the inner walls of the adjacent inserts.

[0008] As a preferred technical solution of the present utility model, reserved slots are provided at the tops of the four limit posts, handles are fixedly connected inside the four reserved slots, and the heights of the four handles are all lower than the height of the top of the limit posts.

[0009] As a preferred technical solution of the present utility model, the four L-shaped protection plates have the same size.

[0010] As a preferred technical solution of the present utility model, the bottoms of the four top plates are in contact with the top of the top cover, and the four top plates have the same size.

[0011] As a preferred technical solution of the present utility model, installation slots are provided on both sides of the middle of the inner wall of the double-layer corrugated paper box body, sliders are slidably connected to the inner walls of the two installation slots, and a partition is fixedly installed on one side of the two adjacent sliders.

[0012] As a preferred technical solution of the present utility model, air bags are fixedly connected to both sides of the partition.

[0013] As a preferred technical solution of the present utility model, air injection ports are provided at the tops of the two air bags.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] By providing L-shaped protection plates on the four sides outside the double-layer corrugated paper box body, the present utility model can improve the strength and stability of the cardboard box, prevent deformation or damage during handling and stacking, and the provided L-shaped protection plates can absorb and disperse external impact forces. Especially during transportation and handling, it can effectively reduce the direct impact and damage to the items inside the box. Therefore, the durability of the device is improved and the risk of damage is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural schematic diagram of the present utility model;

[0017] Figure 2 is a split structural schematic diagram of the present utility model;

[0018] Figure 3 is a structural schematic diagram of the L-shaped protection plate, top plate and bottom plate in the present utility model;

[0019] Figure 4 is a structural schematic diagram of the double-layer corrugated paper box body and the partition in the present utility model.

[0020] In the figure: 1. Double-layer corrugated paper box body; 2. Top cover; 3. L-shaped protection plate; 4. Top plate; 5. Limit post; 6. Handle; 7. Limit hole; 8. Bottom plate; 9. Insert bar; 10. Installation groove; 11. Partition board; 12. Airbag. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0022] In the manufacture of packaging boxes, it is necessary to use a homogeneous double-layer corrugated paper cardboard box. A homogeneous double-layer corrugated paper cardboard box provided by the present invention is specifically used for the manufacture of packaging boxes. Compared with a homogeneous double-layer corrugated paper cardboard box with the publication number of CN218173273 U for the manufacture of packaging boxes, in this device, L-shaped protection plates are installed on all four sides of the outer wall of the double-layer corrugated paper box body, which can increase the protection effect on the side of the double-layer corrugated paper box body, enabling the device to be better protected during use, and thus better improving the durability of the double-layer corrugated paper box body. Embodiment

[0023] Please refer to Figures 1 - 4 , the present invention provides a technical solution:

[0024] A homogeneous double-layer corrugated cardboard box for the manufacture of packing boxes, comprising a double-layer corrugated cardboard box body 1, a top cover 2 is snap-connected to the top of the double-layer corrugated cardboard box body 1, L-shaped protection plates 3 are attached to the four sides of the outer wall of the double-layer corrugated cardboard box body 1, the bottom ends of the four L-shaped protection plates 3 are fixedly connected with a bottom plate 8, the middle parts of the tops of the four L-shaped protection plates 3 are rotatably installed with a top plate 4, one corner of the top of each of the four top plates 4 is movably penetrated by a limiting post 5, and limiting holes 7 are opened at the four corners of the top of the four top covers 2. A part of the outer walls of the four limiting posts 5 are snap-connected to the inner walls of the adjacent limiting holes 7. The four L-shaped protection plates 3 have the same size. By providing L-shaped protection plates 3 on the four sides outside the double-layer corrugated cardboard box body 1, the strength and stability of the cardboard box can be improved, preventing deformation or damage during handling and stacking. And the provided L-shaped protection plates 3 can absorb and disperse external impact forces. Especially during transportation and handling, it can effectively reduce the direct impact and damage to the items inside the box. And the setting of the L-shaped protection plates 3 can prevent direct external friction with the surface of the double-layer corrugated cardboard box body 1, thereby improving the wear resistance of the double-layer corrugated cardboard box body 1 and preventing cardboard breakage or tearing caused by friction and collision during transportation. The bottom ends of the four top plates 4 are in contact with the top of the top cover 2. The four top plates 4 have the same size. The rotational design of the top plate 4 does not affect the normal sealing and taking of the top cover 2, and can also limit the top cover 2, completing the limit installation of the entire device.

[0025] In this embodiment, inserting strips 9 are fixedly installed in the middle parts of the tops of the four bottom plates 8, and inserting holes are opened at the four corners of the bottom of the double-layer corrugated cardboard box body 1. The outer walls of the four inserting strips 9 are inserted into the inner walls of the adjacent inserting strips 9. The setting of the bottom plate 8 and the inserting strips 9 serves to assist in installing the L-shaped protection plates 3 on the sides of the double-layer corrugated cardboard box body 1.

[0026] In this embodiment, reserved grooves are opened at the top ends of the four limiting posts 5, and handles 6 are fixedly connected inside the four reserved grooves. The heights of the four handles 6 are all lower than the height of the top ends of the limiting posts 5. The cooperation between the reserved grooves opened on the limiting posts 5 and the handles 6 facilitates taking the limiting posts 5 through the middle gap, making it convenient to disassemble them.

[0027] In this embodiment, installation grooves 10 are opened on both sides of the middle part of the inner wall of the double-layer corrugated cardboard box body 1. Sliding blocks are slidably connected to the inner walls of the two installation grooves 10. A partition plate 11 is fixedly installed on one adjacent side of the two sliding blocks. The slidably installed partition plate 11 is convenient for adding or removing according to the needs of the items in the device. Both sides of the partition plate 11 are fixedly connected with air bags 12. Air injection ports are provided at the tops of the two air bags 12. The provided air bags 12 can expand after being inflated through the air injection ports, and the size of the expansion can be selected according to the number of items in the double-layer corrugated cardboard box body 1, so as to ensure that the items in the double-layer corrugated cardboard box body 1 do not shake, thereby improving the stability during item transportation.

[0028] Working principle: When in use, first insert the insert bar 9 provided on the bottom plate 8 into the corresponding jack. At this time, the L-shaped protection plate 3 is limited to the four side edges of the double corrugated paper box body 1. Slide the slider provided on the partition plate 11 and limit it to the inner wall of the installation groove 10 as needed to complete the installation of the partition plate 11. Place the items on both sides of the partition plate 11 inside the double corrugated paper box body 1. When the items do not fill the internal space of the double corrugated paper box body 1, inject air into the airbag 12 through the provided air injection port, so that the airbag 12 expands to fill the gaps inside the double corrugated paper box body 1, ensuring that the items are limited inside the double corrugated paper box body 1. Then cover the top cover 2 on the double corrugated paper box body 1. At this time, rotate the top plate 4 to block the four corners at the top of the top cover 2, and then limit the limit post 5 to the inside of the limit hole 7, thereby completing the limit fixation of the top cover 2. At this time, when transporting the double corrugated paper box body 1, the side of it can be protected by the L-shaped protection plate 3.

[0029] In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 construed as a limitation of the present invention.

[0030] In the present invention, unless otherwise clearly specified and limited, for example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0031] 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 principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A homogeneous double-layer corrugated paperboard box for use in packaging box manufacturing, comprising a double-layer corrugated paperboard box body (1), characterized in that: The top of the double-layer corrugated paper box (1) is snap-fitted with a top cover (2), the four sides of the outer wall of the double-layer corrugated paper box (1) are all fitted with L-shaped protective plates (3), the bottom ends of the four L-shaped protective plates (3) are all fixedly connected to a bottom plate (8), the middle parts of the top ends of the four L-shaped protective plates (3) are all rotatably mounted with a top plate (4), one corner of the top ends of the four top plates (4) movably penetrates a limiting column (5), the four corners of the top ends of the four top covers (2) are all provided with limiting holes (7), and a portion of the outer walls of the four limiting columns (5) are snap-fitted with the inner walls of adjacent limiting holes (7).

2. A homogeneous double-layer corrugated paperboard box for packaging box manufacturing according to claim 1, characterized in that: Insertion strips (9) are fixedly mounted in the middle of the top ends of the four bottom plates (8), insertion holes are provided at the four corners of the bottom end of the double-layer corrugated paper box (1), and the outer walls of the four insertion strips (9) are plugged into the inner walls of adjacent insertion strips (9).

3. A homogeneous double-layer corrugated paperboard box for packaging box manufacturing according to claim 1, characterized in that: The top ends of the four limiting columns (5) are each provided with a reserved groove, the insides of the four reserved grooves are each fixedly connected with a handle (6), and the height of the four handles (6) is each lower than the height of the top end of the limiting column (5).

4. A homogeneous double-layer corrugated paperboard box for packaging box manufacturing according to claim 1, characterized in that: The four L-shaped protective plates (3) have the same dimensions.

5. A homogeneous double-layer corrugated paperboard box for packaging box manufacturing according to claim 1, characterized in that: The bottom ends of the four top plates (4) are in contact with the top end of the top cover (2), and the sizes of the four top plates (4) are all consistent.

6. A homogeneous double-layer corrugated paperboard box for packaging box manufacturing according to claim 1, characterized in that: Both sides of the middle of the inner wall of the double-layer corrugated paper box (1) are provided with mounting grooves (10), the inner walls of the two mounting grooves (10) are slidably connected with sliders, and a partition plate (11) is fixedly installed on one side adjacent to the two sliders.

7. A homogeneous double-layer corrugated paperboard box for packaging box manufacturing according to claim 6, characterized in that: Air bags (12) are fixedly connected to both sides of the partition (11).

8. A homogeneous double-layer corrugated paperboard box for packaging box manufacturing according to claim 7, characterized in that: The tops of the two air bags (12) are both provided with air injection ports.

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