A packaging carton having high burst strength

By setting up a support frame inside the cardboard box, the problem of easy denting of the top and bottom walls of traditional cardboard boxes is solved, achieving high compressive strength and improving the stability and protective effect of the cardboard box.

CN224563051UActive Publication Date: 2026-07-28SHANDONG HERUI PACKAGING CO LTD
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Patent Information

Application Number
CN202521342950.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-28
Publication Date
2026-07-28
Estimated Expiration
2035-06-28

AI Technical Summary

Technical Problem

Traditional cardboard boxes tend to dent inwards at the top and bottom when stacked, leading to shape deformation and unstable stacking, increasing the risk of damage to goods and affecting the efficiency of logistics transportation and warehousing management.

Method used

A support frame consisting of a fixed frame, a connecting frame, and a movable frame is installed inside the carton. This frame includes components such as a fixed bottom plate, a connecting bottom plate, a connecting side plate, a fixed shaft, a baffle, a connecting cross plate, a guide rod, a fixed spring, and a support plate. These components provide support for the top and bottom walls of the carton and prevent dents.

Benefits of technology

It effectively prevents the top and bottom walls of cardboard boxes from denting under heavy pressure, improves the stability of cardboard box stacking, reduces the risk of damage to goods, and improves the efficiency of logistics transportation and warehousing management.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of packaging cartons with high pressure strength, it is related to packaging carton field, including carton main body, support framework is fixedly installed in carton main body, support framework is composed of fixed framework, connecting framework and movable framework, fixed framework is composed of fixed bottom plate, connecting bottom plate, connecting side plate, fixed shaft and baffle, connecting bottom plate has two and is horizontally symmetrical and is fixedly inserted on fixed bottom plate, by setting the support framework of fixed framework, connecting framework and movable framework in carton main body, support framework can support the top wall and bottom wall of carton main body, when carton is subjected to upper pressure, effectively avoid top wall and bottom wall in heavy pressure inwardly concave, guarantee the protection effect of carton to internal article, make stacked carton stacking more stable simultaneously, reduce article damage risk, provide convenience for logistics transportation and warehousing management, improve operation efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of packaging cartons, and in particular to a packaging carton with high compressive strength. Background Technology

[0002] In the field of modern logistics and packaging, cardboard boxes are a widely used packaging container. They are usually made of paper materials and have many advantages such as low cost, ease of processing, and recyclability. They can play a good role in protecting, containing, and transporting various goods, and are indispensable in the packaging of products in many industries such as food, electronic products, and daily necessities.

[0003] However, traditional packaging cartons have significant technical defects in practical use. When traditional packaging cartons are filled with goods and stacked together, the top and bottom walls of the cartons lack effective support structures. Under the weight of the cartons and goods above, the top and bottom walls easily dent inwards. This not only deforms the shape of the packaging cartons, affecting their protective effect on the contents, but also makes the stacked cartons unstable, increasing the risk of damage to the goods. It also causes inconvenience in logistics transportation and warehousing management, reducing operational efficiency. Therefore, this application proposes a packaging carton with high compressive strength to solve the above problems. Utility Model Content

[0004] The main objective of this invention is to provide a packaging carton with high compressive strength, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A high-pressure-bearing-strength packaging carton includes a carton body with a supporting frame fixedly installed inside. The supporting frame consists of a fixed frame, a connecting frame, and a movable frame. The fixed frame consists of a fixed base plate, a connecting base plate, connecting side plates, a fixed shaft, and baffles. Two connecting base plates are horizontally and symmetrically fixedly inserted into the fixed base plate. Two connecting side plates are longitudinally fixedly inserted into the two connecting base plates. Two fixed shafts are fixedly installed at one end of the two connecting side plates. Two baffles are fixedly installed at one end of the two fixed shafts. Two connecting frames are rotatably installed on the two fixed shafts. The connecting frame consists of a connecting horizontal plate, a guide rod, and a fixed spring. The guide rod is fixedly installed inside the connecting horizontal plate, and the fixed spring is sleeved on the guide rod. Two movable frames are movably installed on two guide rods on the two connecting frames. The movable frame consists of a tray, an insert plate, and a connecting column. The insert plate and the connecting column are fixedly installed at one end of the tray, and the insert plate is simultaneously inserted into the tray on another movable frame.

[0007] Preferably, the fixed base plate and the connecting base plate on the fixed frame are both fixedly connected to the bottom wall of the carton body, and the connecting side plate is fixedly connected to the side wall of the carton body.

[0008] Preferably, the connecting horizontal plate on the connecting frame has a shaft hole, and the connecting horizontal plate is rotatably mounted on the fixed shaft through the shaft hole. The connecting horizontal plate also has a connecting groove.

[0009] Preferably, the guide rod is fixedly installed in the connecting groove, and the fixing spring is also located in the connecting groove.

[0010] Preferably, the connecting column on the movable frame has a mounting hole, the connecting column is slidably mounted on the guide rod through the mounting hole, and the connecting column is also located inside the fixing spring. The support plate is located at the upper end of the connecting cross plate, and one end of the support plate has a slot. The insert plate is inserted into the slot opened on the support plate on another movable frame.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By installing a support frame consisting of a fixed frame, a connecting frame, and a movable frame inside the carton body, the support frame can support the top and bottom walls of the carton body. When the carton is subjected to pressure from above, it can effectively prevent the top and bottom walls from collapsing inward under heavy pressure, ensuring the carton's protective effect on the contents. At the same time, it makes stacked cartons more stable, reduces the risk of damage to goods, provides convenience for logistics transportation and warehousing management, and improves operational efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the supporting frame of this utility model;

[0015] Figure 3 This is a schematic diagram of the fixed frame structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the disassembled connecting frame and movable frame of this utility model;

[0017] Figure 5 For the present utility model Figure 4 A magnified view of point A.

[0018] In the diagram: 1. Carton body; 2. Support frame; 3. Fixed frame; 4. Connecting frame; 5. Movable frame; 6. Fixed base plate; 7. Connecting base plate; 8. Connecting side plate; 9. Fixed shaft; 10. Baffle; 11. Connecting horizontal plate; 12. Connecting groove; 13. Guide rod; 14. Fixed spring; 15. Support plate; 16. Slot; 17. Connecting column; 18. Mounting hole; 19. Insert plate. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Please see Figures 1-5 As shown, a high-pressure-bearing-strength packaging carton includes a carton body 1. A supporting frame 2 is fixedly installed inside the carton body 1. The supporting frame 2 consists of a fixed frame 3, a connecting frame 4, and a movable frame 5. The fixed frame 3 consists of a fixed base plate 6, a connecting base plate 7, connecting side plates 8, a fixed shaft 9, and baffles 10. There are two connecting base plates 7, horizontally and symmetrically fixedly inserted into the fixed base plate 6. There are two connecting side plates 8, each longitudinally fixedly inserted into one of the two connecting base plates 7. There are two fixed shafts 9, each fixedly installed at one end of one of the two connecting side plates 8. There are two baffles 10, each fixedly installed at one end of one of the two fixed shafts 9. There are two connecting frames 4, each rotatably installed on one of the two fixed shafts 9. The connecting frame 4 consists of a connecting horizontal plate 11, a guide rod 13, and a fixing spring 14. The guide rod 13 is fixedly installed inside the connecting horizontal plate 11. A fixed spring 14 is sleeved on the guide rod 13. There are two movable frames 5, each movably mounted on a guide rod 13 on a connecting frame 4. The movable frame 5 consists of a tray 15, an insert plate 19, and a connecting column 17. The insert plate 19 and the connecting column 17 are fixedly mounted on one end of the tray 15, and the insert plate 19 is also inserted into the tray 15 on another movable frame 5. By setting a support frame 2 consisting of a fixed frame 3, a connecting frame 4, and a movable frame 5 inside the carton body 1, the support frame 2 can support the top and bottom walls of the carton body 1. When the carton is subjected to pressure from above, it can effectively prevent the top and bottom walls from collapsing inward under heavy pressure, ensuring the protection of the contents of the carton. At the same time, it makes the stacked cartons more stable, reduces the risk of damage to the goods, provides convenience for logistics transportation and warehousing management, and improves operational efficiency.

[0021] Specifically, the fixed base plate 6 and connecting base plate 7 on the fixed frame 3 are both fixedly connected to the bottom wall of the carton body 1, and the connecting side plate 8 is fixedly connected to the side wall of the carton body 1. The connecting horizontal plate 11 on the connecting frame 4 has a shaft hole, and the connecting horizontal plate 11 is rotatably mounted on the fixed shaft 9 through the shaft hole. The connecting horizontal plate 11 also has a connecting groove 12, and the guide rod 13 is fixedly installed in the connecting groove 12. The fixing spring 14 is also located in the connecting groove 12. The connecting column 17 on the movable frame 5 has a mounting hole 18, and the connecting column 17 passes through the mounting hole. 18 is slidably mounted on guide rod 13, and connecting post 17 is located inside fixed spring 14. Support plate 15 is located at the upper end of connecting horizontal plate 11. One end of support plate 15 is provided with slot 16. Insert plate 19 is inserted into slot 16 provided on support plate 15 on another movable frame 5. Fixed base plate 6 and connecting base plate 7 on fixed frame 3 can support the bottom wall of carton body 1, while connecting side plate 8 can support the side wall of carton body 1. Connecting frame 4 and movable frame 5 can support the top wall of carton body 1.

[0022] When using the cardboard box body 1, to facilitate the placement of items into the cardboard box body 1, first push the movable frame 5 outward on the guide rod 13. At this time, the connecting column 17 will compress the fixing spring 14. As the movable frame 5 moves outward, after the insert plate 19 moves out of the slot 16 opened on the other movable frame 5, rotate the movable frame 5 and the connecting frame 4 outward about the fixing shaft 9 to open them. Then, the items can be placed into the cardboard box body 1. After the items are placed, rotate the movable frame 5 and the connecting frame 4 inward about the fixing shaft 9 to close them. At the same time, the insert plate 19 on one of the movable frames 5 is inserted into the slot 16 opened on the other movable frame 5 under the elastic force of the fixing spring 14. Finally, close the cardboard box.

[0023] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A packaging carton with high pressure resistance, comprising a carton body (1), characterized in that: The carton body (1) is fixedly installed with a support frame (2). The support frame (2) consists of a fixed frame (3), a connecting frame (4), and a movable frame (5). The fixed frame (3) consists of a fixed base plate (6), a connecting base plate (7), a connecting side plate (8), a fixed shaft (9), and a baffle (10). There are two connecting base plates (7) that are horizontally and symmetrically fixedly inserted into the fixed base plate (6). There are two connecting side plates (8) that are vertically fixedly inserted into the two connecting base plates (7). There are two fixed shafts (9) that are fixedly installed at one end of the two connecting side plates (8). There are two baffles (10) that are fixedly installed at one end of the two fixed shafts (9). The connecting frame (4) consists of a fixed base plate (6), a connecting base plate (7), a connecting side plate (8), a fixed shaft (9), and a movable frame (5). There are two movable frames (4) that are rotatably mounted on two fixed shafts (9). The connecting frame (4) consists of a connecting horizontal plate (11), a guide rod (13), and a fixed spring (14). The guide rod (13) is fixedly mounted inside the connecting horizontal plate (11), and the fixed spring (14) is sleeved on the guide rod (13). There are two movable frames (5) that are rotatably mounted on two guide rods (13) on two connecting frames (4). The movable frame (5) consists of a support plate (15), an insert plate (19), and a connecting column (17). The insert plate (19) and the connecting column (17) are fixedly mounted on one end of the support plate (15), and the insert plate (19) is simultaneously inserted into the support plate (15) on another movable frame (5).

2. A packaging carton having high compressive strength according to claim 1, characterized in that: The fixed base plate (6) and connecting base plate (7) on the fixed frame (3) are both fixedly connected to the bottom wall of the carton body (1), and the connecting side plate (8) is fixedly connected to the side wall of the carton body (1).

3. A packaging carton having high compressive strength according to claim 2, characterized in that: The connecting horizontal plate (11) on the connecting frame (4) has a shaft hole, and the connecting horizontal plate (11) is rotatably mounted on the fixed shaft (9) through the shaft hole. The connecting horizontal plate (11) also has a connecting groove (12).

4. A packaging carton having high compressive strength according to claim 3, characterized in that: The guide rod (13) is fixedly installed in the connecting groove (12), and the fixing spring (14) is also located in the connecting groove (12).

5. A packaging carton with high compressive strength according to claim 4, characterized in that: The connecting column (17) on the movable frame (5) has an installation hole (18). The connecting column (17) is slidably installed on the guide rod (13) through the installation hole (18). The connecting column (17) is also located inside the fixed spring (14). The support plate (15) is located at the upper end of the connecting cross plate (11). One end of the support plate (15) has a slot (16). The insert plate (19) is inserted into the slot (16) opened on the support plate (15) on another movable frame (5).