Carton with high corner compressive strength
By installing interlocking rods, long rods, short rods, and clamping blocks at the corners of the cardboard boxes, the problem of insufficient corner strength was solved, improving the box's compression resistance and installation stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN XUANLONG PACKAGING CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-28
AI Technical Summary
The corners of existing cardboard boxes have reduced strength after folding, making them prone to deformation under pressure and affecting their performance.
A cardboard box with high edge and corner compressive strength was designed by setting interlocking rods, long rods and short rods at the edges and corners of the cardboard box, and setting clamping blocks on the reinforcing base. The reinforcing base has mounting holes for interlocking rods, thereby improving the compressive strength and installation stability of the edges and corners.
It improves the compression resistance and installation stability of the cardboard box edges and corners, thus enhancing the overall performance of the cardboard box.
Smart Images

Figure CN224171386U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cardboard box technology, specifically to a cardboard box with high edge and corner compressive strength. Background Technology
[0002] Cardboard boxes are the most widely used packaging products. Depending on the materials used, there are corrugated cardboard boxes, single-layer cardboard boxes, etc., and they come in various specifications and models. Cardboard boxes commonly have three or five layers, while seven-layer boxes are less common. Each layer consists of linerboard, corrugated paper, core paper, and face paper. Linerboard and face paper can be made of kraft paper or kraft paper, while the core paper is made of corrugated paper. The colors and textures of different types of paper are different, and the paper produced by different manufacturers also varies in color and texture.
[0003] The above-mentioned technical conditions also have defects: when existing cardboard boxes are used, the corners are folded, which reduces the strength of the corrugated paper itself, making it easy to deform under pressure, thus affecting subsequent use.
[0004] Based on this, this utility model designs a cardboard box with high edge and corner compressive strength to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a cardboard box with high edge and corner compressive strength to solve the above-mentioned technical problems.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a cardboard box with high edge and corner compressive strength, comprising a base plate and four sets of plug-in rods. Long side plates are connected to both long sides of the base plate, and short side plates are connected to both short sides of the base plate. Long cover plates are connected to the top of both sets of long side plates, and short cover plates are connected to the top of both sets of short side plates. A reinforcing seat is connected between one set of long side plates and one set of short side plates. An installation hole is provided inside the reinforcing seat, and the plug-in rods can be fully inserted into the installation hole.
[0007] By adopting the above technical solutions, the compressive strength of the corners of the carton can be improved.
[0008] Preferably, the top end of the plug rod is fixedly connected to two sets of long rods and two sets of short rods.
[0009] By adopting the above technical solution, the compressive strength of the four sides of the top surface can be increased.
[0010] Preferably, a clamping block is fixedly connected to the reinforcing seat and to the inner wall of the mounting hole, the clamping block being used to abut the bottom end of the plug rod.
[0011] By adopting the above technical solution, the installation stability of the connector rod is increased.
[0012] Preferably, the base plate is composed of two longer plates and two shorter plates.
[0013] By adopting the above technical solution, disassembly and assembly are convenient.
[0014] Preferably, the plug rod is made of high-strength plastic.
[0015] In summary, this application has the following beneficial technical effects: by setting the plug-in rod, long rod and short rod, the compressive strength of the top surface of the carton can be improved, and the use effect of the carton can be improved. Furthermore, by setting the clamping block, the stability of the plug-in rod installation can be increased, and the subsequent use effect can be improved. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this embodiment;
[0018] Figure 2 This is a top view illustrating the structure of this embodiment;
[0019] Figure 3 for Figure 1 Enlarged view of the structure at point A in the middle;
[0020] Figure 4 This is a schematic diagram of the clamping block in this embodiment.
[0021] The attached diagram lists the components represented by each number as follows:
[0022] 1. Base plate; 2. Long side plate; 3. Short side plate; 4. Long cover plate; 5. Short cover plate; 6. Reinforcing seat; 7. Insert rod; 8. Long rod; 9. Short rod; 10. Mounting hole; 11. Clamping block. Detailed Implementation
[0023] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0025] Reference Figure 1 , Figure 2 and Figure 3 A cardboard box with high edge and corner compressive strength includes a base plate 1 and four sets of connecting rods 7. Long side plates 2 are connected to both long sides of the base plate 1, and short side plates 3 are connected to both short sides of the base plate 1. Both long side plates 2 and short side plates 3 can be folded along the connection with the base plate 1. Long cover plates 4 are connected to the top of both sets of long side plates 2, and short cover plates 5 are connected to the top of both sets of short side plates 3. Both long cover plates 4 and short cover plates 5 can be folded along the connection with the side plates. A reinforcing seat 6 is connected between a set of long side plates 2 and a set of short side plates 3. An installation hole 10 is opened inside the reinforcing seat 6, and the connecting rods 7 can be fully inserted into the installation hole 10.
[0026] Furthermore, the top of each of the four sets of plug-in rods 7 is fixedly connected to two sets of long rods 8 and two sets of short rods 9, which can increase the strength of the four sides of the top of the carton, thereby improving the carton's compressive strength.
[0027] Furthermore, a clamping block 11 is fixedly connected to the reinforcing seat 6 and to the inner wall of the mounting hole 10. The clamping block 11 is used to press against the bottom end of the plug rod 7, thereby increasing its installation stability.
[0028] Furthermore, the base plate 1 is composed of two longer plates and two shorter plates. The two longer plates are glued together with tape, and the two shorter plates are located inside the carton.
[0029] Furthermore, the connector 7 is made of high-strength plastic, which is lightweight and strong, and can improve the compression resistance of the carton.
[0030] The implementation principle of this embodiment is as follows: When in use, the cardboard is folded along the creases to form a carton. Then, the insertion rods 7 are inserted into the four sets of reinforcing seats 6 respectively. At the same time, the long rod 8 is pressed against the connection between the long side plate 2 and the long cover plate 4, and the short rod 9 is pressed against the connection between the short side plate 3 and the short cover plate 5, which can improve the edge and corner strength of the top surface of the carton.
[0031] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A cardboard box with high edge and corner compressive strength, comprising a base plate (1) and four sets of interlocking rods (7), characterized in that: The base plate (1) is connected to long side plates (2) on both long sides and short side plates (3) on both short sides. Long cover plates (4) are connected to the top of the two sets of long side plates (2) and short cover plates (5) are connected to the top of the two sets of short side plates (3). A reinforcing seat (6) is connected between a set of long side plates (2) and a set of short side plates (3). An installation hole (10) is provided inside the reinforcing seat (6) and the plug rod (7) can be fully inserted into the installation hole (10).
2. A cardboard box with high edge and corner compressive strength according to claim 1, characterized in that: The top of the plug rod (7) is fixedly connected to two sets of long rods (8) and two sets of short rods (9).
3. A cardboard box with high edge and corner compressive strength according to claim 1, characterized in that: A clamping block (11) is fixedly connected to the reinforcing seat (6) and to the inner wall of the mounting hole (10). The clamping block (11) is used to press against the bottom end of the plug rod (7).
4. A cardboard box with high edge and corner compressive strength according to claim 1, characterized in that: The base plate (1) is composed of two longer plates and two shorter plates.
5. A cardboard box with high edge and corner compressive strength according to claim 1, characterized in that: The plug rod (7) is made of high-strength plastic.