Compression-resistant carton

Abstract

The utility model discloses a compression-resistant carton and belongs to the field of cartons. The compression-resistant carton comprises an outer carton body, carton covers are arranged on the upper surface of the outer carton body, a supporting frame is arranged between the carton covers, transverse plates are arranged on the two sides of the supporting frame, the upper surface of the supporting frame is of a hollow penetrating structure, and an inner carton body is fixedly installed on the inner bottom wall of the outer carton body. A center joint is formed between the outer box body and the inner box body, a reinforcing frame is connected to the inner arc face of the center joint in a penetrating mode, weight reduction openings are formed in the peripheral sides of the reinforcing frame, diagonal longitudinal plates are arranged in openings in the two sides of the reinforcing frame, and the bottom faces of chamfers are connected to the inner bottom wall of the outer box body. Due to the fact that the material of the carton does not cause the bad conditions of carton deformation, extrusion damage and the like due to overlarge self weight, the stability of the carton structure is guaranteed in all directions, external vibration interference can be resisted for objects borne in the carton by means of excellent damping efficiency, and the service life of the carton and the service life of the objects in the carton are prolonged to a great extent.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box technology, specifically a pressure-resistant cardboard box. Background Technology

[0002] In today's era of booming globalized commerce, trade, and logistics, cardboard boxes, as an indispensable key carrier in the packaging, storage, and transportation of goods, are facing unprecedented and stringent challenges, which has spurred the research and development and widespread application of pressure-resistant cardboard boxes.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN217945992U) discloses a pressure-resistant cardboard box, comprising a box body with two upper inner covers. A reinforcing flap is provided at the position where the upper inner cover connects to the box body. The reinforcing flap is located inside the upper inner cover and, when folded, covers the inner wall of the first side surface, the inner wall of the bottom surface, and the inner wall of the second side surface of the box body. This utility model's addition of the reinforcing flap gives the box body a double-layer structure, enhancing its pressure resistance, preventing collapse, and minimizing damage to the internal double layers, while also allowing for multiple uses.

[0004] Although the aforementioned patented design uses a double-layer cardboard box, making it less prone to damage and allowing for multiple uses, in order to maximize space utilization in warehousing, shelves are being stacked higher and higher, significantly increasing the number of cardboard box stacks. Goods packaged in these boxes are tightly packed inside the small boxes, with the bottom boxes having to withstand several tons of pressure. The continuous vibration and impact caused by bumpy road conditions further exacerbates the stress on the boxes. The aforementioned cardboard box structure is still too thin and lacks sufficient mechanical strength to cope with such complex and high-intensity stress environments.

[0005] Therefore, this utility model provides a pressure-resistant cardboard box to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides a pressure-resistant cardboard box, which aims to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: It includes an outer casing, with a lid on the upper surface of the outer casing, a support frame between the lids, horizontal plates on both sides of the support frame, and a hollow, through-hole structure on the upper surface of the support frame. An inner casing is fixedly installed on the inner bottom wall of the outer casing, a central seam is formed between the outer casing and the inner casing, and a reinforcing frame is connected through the inner arc surface of the central seam. Weight-reducing openings are provided on the periphery of the reinforcing frame, diagonal longitudinal plates are provided in the openings on both sides of the reinforcing frame, and chamfers are provided at the four corners of the reinforcing frame, with the bottom surface of the chamfers connected to the inner bottom wall of the outer casing.

[0010] As a preferred technical solution of this application, one side of the diagonal longitudinal plate abuts against the inner side wall of the outer box, and there are two diagonal longitudinal plates, which are symmetrically distributed with the top of the reinforcing frame as the center point.

[0011] As a preferred technical solution of this application, the reinforcing frame is provided with connecting horizontal plates on both sides, and the two ends of the connecting horizontal plates are located in the middle of the inner sidewall of the weight reduction port.

[0012] As a preferred technical solution of this application, the connecting cross plate abuts against the two end faces of the outer box, the reinforcing frame is inserted into the middle seam, and the reinforcing frame is made of polycarbonate.

[0013] As a preferred technical solution of this application, a pressure rod is movably connected to the middle of one side surface of the connecting cross plate via a rotating shaft. The middle of one side surface of the pressure rod is provided with a shaft. There are two pressure rods, which are distributed in a cross-symmetrical manner, and the two pressure rods are connected to each other via a shaft.

[0014] As a preferred technical solution of this application, the outer arc surface of the pressure rod is attached to the reinforcing frame and movably abuts against the middle seam. Corner sleeves are provided at the four corners of the pressure rod, and the outer arc surface of the corner sleeves is respectively attached to one side of the outer box and one side of the inner box.

[0015] As a preferred technical solution of this application, a cardboard base is fitted onto the bottom of the outer arc surface of the outer box, and the inner sidewall of the cardboard base is attached to the four end faces of the outer box.

[0016] (III) Beneficial Effects

[0017] 1. By placing a reinforcing frame between the outer and inner boxes, the material itself will not cause the cardboard box to deform or be damaged by compression due to excessive weight. This ensures the stability of the cardboard box structure in all aspects. At the same time, thanks to its excellent shock absorption performance, it can also protect the items inside the cardboard box from external vibration interference, greatly extending the service life of the cardboard box and the items inside.

[0018] 2. The reinforcing frame and the anti-compression bar can flexibly adapt to the situation and shrink the space accordingly, closely fitting the surface of the reinforcing frame, so as to quickly and evenly disperse the strong impact force, effectively mitigating the damage caused by concentrated force to the reinforcing frame. At the same time, the corner sleeves distributed on the four corners of the reinforcing frame adopt a buffer sponge structure, which further reduces the impact force with its excellent energy absorption and buffering characteristics. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall outer casing structure of a pressure-resistant cardboard box;

[0020] Figure 2 This is a schematic diagram of the reinforcing frame in a compression-resistant cardboard box;

[0021] Figure 3 This is a schematic diagram of the overall explosive structure of a pressure-resistant cardboard box;

[0022] Figure 4 This is a top view of a pressure-resistant cardboard box.

[0023] Figure 5 This is a schematic diagram of the structure of a pressure-resistant bar in a pressure-resistant cardboard box.

[0024] In the picture:

[0025] 1. Outer box; 2. Box lid; 201. Support frame; 3. Inner box; 4. Center seam; 5. Reinforcing frame; 501. Diagonal longitudinal plate; 502. Chamfer; 503. Weight reduction opening; 504. Connecting horizontal plate; 6. Pressure bar; 601. Shaft; 602. Corner sleeve; 7. Cardboard base. Detailed Implementation

[0026] 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.

[0027] This utility model provides a pressure-resistant cardboard box, such as Figures 1 to 5As shown, the device includes an outer casing 1, with a lid 2 on its upper surface. A support frame 201 is located between the lids 2, and horizontal plates are provided on both sides of the support frame 201. The upper surface of the support frame 201 has a hollow, through-hole structure. An inner casing 3 is fixedly installed on the inner bottom wall of the outer casing 1. A central seam 4 is provided between the outer casing 1 and the inner casing 3. A reinforcing frame 5 is connected through the inner arc surface of the central seam 4. Weight-reducing openings 503 are provided on all sides of the reinforcing frame 5. Diagonal longitudinal plates 501 are provided in the openings on both sides of the reinforcing frame 5. Weight-reducing openings 503 are provided at all four corners of the reinforcing frame 5. Chamfer 502, the bottom surface of chamfer 502 is connected to the inner bottom wall of outer box 1, one side of diagonal longitudinal plate 501 abuts against the inner side wall of outer box 1, there are two diagonal longitudinal plates 501, and they are symmetrically distributed with the top of reinforcing frame 5 as the center point. Both sides of reinforcing frame 5 are provided with connecting horizontal plates 504, both ends of connecting horizontal plates 504 are set in the middle of the inner side wall of weight reduction port 503, and the connecting horizontal plates 504 abut against the two end faces of outer box 1. Reinforcing frame 5 is inserted into the middle seam 4. Reinforcing frame 5 is made of polycarbonate material.

[0028] The lid 2 on the top of the outer casing 1 has a certain degree of pressure resistance. The four side ears of the lid 2 are all connected to the support frame 201. Since the support frame 201 connects the side ears of the lid 2 into one piece, when the lid 2 is stacked and used to seal the top of the outer casing 1, if one side ear is subjected to an external impact, the impact force will not act in one place, but can be quickly transmitted and dispersed between the side ears through the support frame 201, and then effectively absorbed and resolved by the entire structure, thus maximizing the stability and safety of the lid 2 during use.

[0029] In the overall design architecture, the outer box 1 is connected to the inner box 3, which can buffer and disperse the impact force from the complex and ever-changing external environment in a very efficient way, reducing the risk of damage to the components or stored items inside the box.

[0030] Meanwhile, a reinforcing frame 5 is installed in the seam 4 formed by the connection between the outer box 1 and the inner box 3. The four corners of the reinforcing frame 5 are all chamfered 502. After the chamfering 502 treatment, it can be ensured that the reinforcing frame 5 is placed stably and properly on the inner bottom wall of the box, avoiding unstable conditions such as shaking and displacement. Moreover, after the chamfering 502 design, the contact area with the box surface is increased, the force distribution is more uniform, and the friction is also increased, making the connection between the reinforcing frame 5 and the box more tight and firm, so that it can always maintain a stable state whether it is dealing with daily handling, frequent opening and closing, or encountering sudden external impact.

[0031] Weight reduction openings 503 are provided around the reinforcing frame 5. The presence of weight reduction openings 503 effectively reduces the overall weight of the reinforcing frame 5. Lightweighting is successfully achieved without interfering with the normal use performance of the carton. Compared with the traditional reinforcing frame 5 without this design, unnecessary redundant weight is eliminated, making the entire structure lighter and more flexible. After being placed in place, it fits tightly with the gap of the carton, preventing the carton from deforming or being damaged by squeezing due to excessive weight. It ensures the stability of the carton structure in all aspects. With its excellent shock absorption performance, it can also protect the items inside the carton from external vibration interference, greatly extending the service life of the carton and the items inside.

[0032] A pressure rod 6 is movably connected to the middle of one side surface of the connecting horizontal plate 504 via a pivot. A pivot 601 is provided in the middle of one side surface of the pressure rod 6. There are two pressure rods 6, which are distributed in a cross-symmetrical manner. The two pressure rods 6 are connected by the pivot 601. The outer arc surface of the pressure rod 6 is attached to the reinforcing frame 5 and movably abuts against the middle seam 4. Corner sleeves 602 are provided at the four corners of the pressure rod 6. The outer arc surface of the corner sleeves 602 is attached to one side of the outer box 1 and one side of the inner box 3, respectively. A cardboard base 7 is fitted to the bottom of the outer arc surface of the outer box 1. The inner side wall of the cardboard base 7 is attached to the four end faces of the outer box 1.

[0033] Furthermore, to enhance the compressive strength of the reinforced frame 5, anti-pressure rods 6 are installed on the connecting cross plate 504. Because the anti-pressure rods 6 also possess elasticity, and the two anti-pressure rods 6 are arranged in a cross shape around the same axis 601, forming a dynamic and stable mechanical structure. Unlike traditional rigid structures that rigidly bear the impact and passively absorb all the impact force, thus preventing damage to themselves or surrounding components, the two anti-pressure rods 6 can flexibly adapt, shrink the space accordingly, and fit tightly against the surface of the reinforced frame 5, quickly and evenly dispersing the powerful impact force, effectively mitigating the damage caused by concentrated force to the reinforced frame 5. At the same time, the corner sleeves 602 distributed at the four corners of the reinforced frame 5 adopt a buffer sponge structure, which further reduces the impact force due to its excellent energy absorption and buffering characteristics.

[0034] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A pressure-resistant cardboard box, comprising an outer box body (1), characterized in that: The upper surface of the outer box (1) is provided with a box cover (2), and a support frame (201) is provided between the box covers (2). The support frame (201) is provided with horizontal plates on both sides. The upper surface of the support frame (201) is a hollow through structure. An inner box (3) is fixedly installed on the inner bottom wall of the outer box (1). A middle seam (4) is opened between the outer box (1) and the inner box (3). A reinforcing frame (5) is connected through the inner arc surface of the middle seam (4). A weight reduction opening (503) is provided on the periphery of the reinforcing frame (5). A diagonal longitudinal plate (501) is provided in the opening on both sides of the reinforcing frame (5). A chamfer (502) is provided at each of the four corners of the reinforcing frame (5). The bottom surface of the chamfer (502) is connected to the inner bottom wall of the outer box (1).

2. The compression-resistant cardboard box according to claim 1, characterized in that: One side of the diagonal longitudinal plate (501) abuts against the inner side wall of the outer box (1). There are two diagonal longitudinal plates (501), which are symmetrically distributed with the top of the reinforcing frame (5) as the center point.

3. A compression-resistant cardboard box according to claim 2, characterized in that: Both sides of the reinforcing frame (5) are provided with connecting horizontal plates (504), and both ends of the connecting horizontal plates (504) are located in the middle of the inner side wall of the weight reduction port (503).

4. A compression-resistant cardboard box according to claim 3, characterized in that: The connecting cross plate (504) abuts against the two end faces of the outer box (1), and the reinforcing frame (5) is inserted into the middle seam (4). The reinforcing frame (5) is made of polycarbonate.

5. A compression-resistant cardboard box according to claim 4, characterized in that: A pressure rod (6) is movably connected to the middle of one side surface of the connecting cross plate (504) via a pivot. A shaft (601) is provided in the middle of one side surface of the pressure rod (6). There are two pressure rods (6), which are symmetrically distributed in a cross pattern. The two pressure rods (6) are connected to each other via the shaft (601).

6. A compression-resistant cardboard box according to claim 5, characterized in that: The outer arc surface of the pressure bar (6) is attached to the reinforcing frame (5) and movably abuts against the middle seam (4). Corner sleeves (602) are provided at the four corners of the pressure bar (6). The outer arc surface of the corner sleeves (602) is attached to one side of the outer box (1) and one side of the inner box (3) respectively.

7. A compression-resistant cardboard box according to claim 6, characterized in that: The outer arc surface of the outer box (1) is fitted with a cardboard base (7), and the inner sidewall of the cardboard base (7) is attached to the four end faces of the outer box (1).

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