High-strength packaging carton

By combining Velcro and pallet structures, along with reinforcing strips and cross ribs, the problems of lid misalignment and space separation during the transportation of packaged cartons are solved, achieving both high strength and flexible storage.

CN223920060UActive Publication Date: 2026-02-17JIN JIANG XIAN DAI CAI SE YIN SHUA YOU XIAN GONG SI
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Patent Information

Application Number
CN202520714076.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-02-17
Estimated Expiration
2035-04-16

AI Technical Summary

Technical Problem

Existing high-strength packaging cartons are prone to lid shifting or falling off during transportation, and lack effective partition structures, making them difficult to adapt to the storage needs of items of different sizes.

Method used

The connection structure combines hook and loop fasteners, along with a design featuring a locking plate and rubber ball positioning grooves to enhance the lid's stability. Reinforcing strips and cross ribs further strengthen the case, while the internal locking plate allows for adjustable space division.

Benefits of technology

It effectively prevents the lid from shifting during transportation, improves the strength of the box, facilitates space division according to needs, adapts to the storage needs of items of different sizes, and increases the flexibility and stability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The high-strength packaging carton comprises a carton body and a carton cover, reinforcing strips are fixedly connected to a plurality of corners of the carton body and the carton cover, connecting blocks are fixedly connected to the outer walls of the two sides of the carton body, through grooves are formed in the connecting blocks, fixing plates are connected to the outer walls of the two sides of the carton cover, and the fixing plates are fixedly connected to the outer walls of the two sides of the carton cover. A three-folded plate is integrally formed at the bottom of the fixing plate, the bottom end of the three-folded plate penetrates through the through groove and is fixedly connected with a hook-and-loop fastener hook face, a mounting opening is formed in one side of the connecting block, a hook-and-loop fastener loop face is fixedly connected into the mounting opening and can make contact with the hook-and-loop fastener hook face, and a second clamping plate and a first clamping plate are arranged in the box body. According to the carton, the position of the carton cover can be limited, meanwhile, the carton body can be divided into a plurality of spaces, objects can be conveniently stored, and the strength of the carton can be improved.
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Description

Technical Field

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

[0002] Cardboard boxes are the most widely used packaging products, commonly used as wrapping materials for goods or as outer protective layers for items. They come in various specifications and models.

[0003] A search revealed Chinese patent CN220076992U, which discloses a high-strength packaging carton, including a carton body, folded cardboard, and a lid. The carton body includes an outer cardboard layer and an internal structure with mutually perpendicular transverse and longitudinal corrugated cardboard layers, significantly improving the carton's strength. However, it has the following drawbacks: it lacks internal dividers, making it inconvenient to isolate and store multiple items; and the lid is directly placed on top of the carton body without proper fixing, making it prone to shifting and falling off during transport due to bumps or collisions. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-strength packaging carton.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-strength packaging carton includes a carton body and a carton lid. Reinforcing strips are fixedly connected to multiple corners of the carton body and the carton lid. Connecting blocks are fixedly connected to both outer walls of the carton body. Through grooves are opened inside the connecting blocks. Fixing plates are connected to both outer walls of the carton lid. A three-fold plate is integrally formed at the bottom of the fixing plate. The bottom end of the three-fold plate passes through the through groove and is fixedly connected to a hook and loop fastener. An installation opening is opened on one side of the connecting block. A hook and loop fastener is fixedly connected inside the installation opening, and the hook and loop fastener can contact the hook and loop fastener. A second card plate and a first card plate are provided inside the carton body.

[0007] As a further improvement of this utility model, a clearance groove is provided at the bottom of the middle part of the first card plate, and the second card plate can be engaged with the clearance groove.

[0008] As a further embodiment of this utility model, rubber strips are fixedly connected to both ends of the first and second card plates, and multiple rubber balls are fixedly connected to one side of the rubber strips. Positioning grooves are provided on both inner walls of the box body, and the rubber balls are engaged with the positioning grooves at the corresponding positions.

[0009] As a further improvement of this utility model, V-shaped ribs are fixedly connected to the sides of both the first and second card plates.

[0010] As a further improvement of this utility model, the upper surface of the box cover is fixedly connected with cross ribs.

[0011] As a further improvement of this utility model, support pads are fixedly connected to the four corners of the top of the box cover and the four corners of the bottom of the box body.

[0012] As a further improvement of this utility model, the middle part of the thickness of the box body and the box cover is corrugated paper.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a three-fold plate with a hook and loop fastener attached and a connecting block with a hook and loop fastener attached to restrict the position of the box lid, preventing the lid from shifting out of the box body when subjected to bumps or collisions during transportation, thus improving the usability of the cardboard box.

[0015] 2. By adding and removing the first and second pallets, this utility model allows users to easily divide the box into one, two, or four spaces according to their needs, making it convenient to place objects of different sizes, facilitating the storage of objects, and also making it easy to assemble and disassemble, thus improving the flexibility of the device.

[0016] 3. The use of cross ribs and reinforcing strips strengthens the box body and lid, increasing their strength. In addition, the use of support pads provides more stable support for the cartons, making it easier to stack them. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a high-strength packaging carton proposed in this utility model;

[0018] Figure 2 This is a partial cross-sectional view of a high-strength packaging carton proposed in this utility model.

[0019] Figure 3 This is a partially enlarged structural diagram of a high-strength packaging carton proposed in this utility model.

[0020] In the diagram: 1. Box body; 2. Box lid; 3. Reinforcing strip; 4. Support pad; 5. Tri-fold plate; 6. Velcro hook surface; 7. First clamping plate; 8. Second clamping plate; 9. Alternating groove; 10. Rubber strip; 11. Rubber ball; 12. Positioning groove; 13. Fixing plate; 14. Connecting block; 15. Through groove; 16. Velcro rough surface; 17. V-shaped rib; 18. Cross rib. Detailed Implementation

[0021] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Therefore, all other embodiments of this application described herein, and all embodiments obtained by those skilled in the art without creative effort based on the embodiments in this application, should fall within the scope of protection of this application.

[0022] Reference Figures 1-3 A high-strength packaging carton includes a carton body 1 and a carton lid 2. The middle section of the thickness of the carton body 1 and the carton lid 2 is made of corrugated cardboard. Reinforcing strips 3 are glued to multiple corners of the carton body 1 and the carton lid 2 to improve the strength of the carton. Connecting blocks 14 are glued to both outer walls of the carton body 1. Through grooves 15 are opened inside the connecting blocks 14. Fixing plates 13 are connected to both outer walls of the carton lid 2. A three-fold plate 5 is integrally formed at the bottom of the fixing plate 13. The bottom end of the three-fold plate 5 passes through the through groove 15 and is glued with a hook and loop fastener 6. An installation opening is opened on one side of the connecting block 14, and a hook and loop fastener rough surface 16 is glued inside the installation opening. The hook and loop fastener rough surface 16 can be connected with the hook and loop fastener fastener 6. Contact the item and place it into the space of the box 1. After placement, cover the top of the box 1 with the lid 2. Then stretch one end of the three-fold plate 5 with the hook and loop fastener 6 to make it pass completely through the through slot 15. Then pull it upward to make the hook and loop fastener 6 contact the hook and loop fastener 16, thereby restricting the position of the lid 2 and preventing the lid 2 from moving out of the box 1. The inside of the box 1 is provided with a second card plate 8 and a first card plate 7. By adding and removing the first card plate 7 and the second card plate 8, users can easily divide the box 1 into one whole space, two spaces or four spaces according to their needs, which is convenient for placing objects of different sizes and for storing objects.

[0023] In this utility model, it should be noted that a clearance groove 9 is provided at the bottom of the middle part of the first card plate 7, and the second card plate 8 can be engaged with the clearance groove 9. Rubber strips 10 are glued to both ends of the first card plate 7 and the second card plate 8, and multiple rubber balls 11 are glued to one side of the rubber strips 10. Positioning grooves 12 are provided on both inner walls of the box body 1. Through the cooperation of the positioning grooves 12 and the rubber balls 11, the positions of the first card plate 7 and the second card plate 8 are assistedly fixed, and the rubber balls 11 are engaged with the corresponding positioning grooves 12. Pulling the first card plate 7 upward causes it to move out of the box cover 2, and at the same time, the rubber balls 11 on the first card plate 7 move out of the positioning grooves 12, thus completing the first card plate 7. The first cardboard plate 7 and the second cardboard plate 8 are disassembled in the same way. V-shaped ribs 17 are glued to the sides of both the first cardboard plate 7 and the second cardboard plate 8. The V-shaped ribs 17 can reinforce the first cardboard plate 7 and the second cardboard plate 8, thereby increasing the strength of the first cardboard plate 7 and the second cardboard plate 8 and providing better support for the inside of the box body 1. Cross ribs 18 are glued to the upper surface of the box cover 2. Support pads 4 are glued to the four corners of the top of the box cover 2 and the four corners of the bottom of the box body 1. Through the use of cross ribs 18 and reinforcing strips 3, the box body 1 and the box cover 2 are reinforced and strengthened. At the same time, with the use of support pads 4, the carton is more stably supported, making it easier to stack the carton.

[0024] Working principle: When it is necessary to store items, first, place the second card plate 8 or the second card plate 8 and the first card plate 7 according to the user's needs to divide the box 1 into two or four spaces. Then, place the items into the spaces of the box 1. After placement, cover the top of the box 1 with the lid 2. Then, stretch one end of the three-fold plate 5 with the hook and loop fastener 6 to make it pass completely through the through slot 15. Then pull it upward to make the hook and loop fastener 6 contact the hook and loop fastener 16, thereby restricting the position of the lid 2 and preventing the lid 2 from easily separating from the box 1.

[0025] This utility model has been described through the above embodiments. Those skilled in the art will understand that this utility model is not limited to the above embodiments. Many more modifications can be made based on the teachings of this utility model, and all such modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength packaging carton, comprising a carton body (1) and a carton lid (2), characterized in that, Reinforcing strips (3) are fixedly connected to multiple corners of the box body (1) and the box cover (2). Connecting blocks (14) are fixedly connected to both outer walls of the box body (1). A through groove (15) is opened inside the connecting block (14). A fixing plate (13) is connected to both outer walls of the box cover (2). A three-fold plate (5) is integrally formed at the bottom of the fixing plate (13). The bottom end of the three-fold plate (5) passes through the through groove (15) and is fixedly connected to a hook and loop fastener (6). An installation opening is opened on one side of the connecting block (14). A hook and loop fastener (16) is fixedly connected inside the installation opening, and the hook and loop fastener (16) can contact the hook and loop fastener (6). A second card plate (8) and a first card plate (7) are provided inside the box body (1).

2. The high-strength packaging carton according to claim 1, characterized in that, The bottom of the middle part of the first card plate (7) is provided with a relief groove (9), and the second card plate (8) can be engaged with the relief groove (9).

3. A high-strength packaging carton according to claim 2, characterized in that, Both ends of the first card plate (7) and the second card plate (8) are fixedly connected with rubber strips (10), and one side of the rubber strips (10) is fixedly connected with multiple rubber balls (11). The inner walls of both sides of the box body (1) are provided with positioning grooves (12), and the rubber balls (11) are engaged with the positioning grooves (12) at the corresponding positions.

4. A high-strength packaging carton according to claim 1, characterized in that, V-shaped ribs (17) are fixedly connected to the sides of both the first card plate (7) and the second card plate (8).

5. A high-strength packaging carton according to claim 1, characterized in that, The upper surface of the box cover (2) is fixedly connected with cross ribs (18).

6. A high-strength packaging carton according to claim 1, characterized in that, Support pads (4) are fixedly connected to the four corners of the top of the lid (2) and the four corners of the bottom of the body (1).

7. A high-strength packaging carton according to claim 1, characterized in that, The middle part of the thickness of the box body (1) and the box cover (2) is corrugated paper.

Citation Information

Patent Citations

  • High-strength packaging carton

    CN220076992U