A high strength carton
By setting interlaced horizontal and vertical strips on the top and bottom plates of the carton to form a mesh support structure, and combining it with reinforcing ribs and three-layer corrugated cardboard, the problem of insufficient strength at the stacking position of non-multi-layer corrugated cardboard is solved, and the high strength and stability of the carton are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU JIUXINYUAN PAPER PRODUCTS CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-09
AI Technical Summary
Existing cardboard boxes have low strength at non-multi-layer corrugated cardboard stacking locations, making them easily damaged and affecting the quality and safety of the products inside.
The structure employs a mesh support structure formed by interlaced horizontal and vertical strips on the top and bottom plates of the carton, and reinforces the connection with connecting strips and reinforcing ribs. The use of three-layer corrugated cardboard improves the overall stability and load-bearing capacity of the structure.
This enhances the overall structural stability and load-bearing capacity of the cardboard box, prevents damage to non-multi-layer corrugated cardboard stacking areas during transportation, and improves the protective performance of the cardboard box.
Smart Images

Figure CN224336042U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cartons, and specifically relates to a high-strength carton. Background Art
[0002] A carton, also known as a corrugated carton, is a packaging container made by folding, gluing or nailing corrugated cardboard. Its core structure consists of a face paper, a corrugated core paper and a lining paper, and is pressed into a wave shape (corrugation) by a corrugating machine to increase the compressive strength. It is widely used in the transportation, storage and sales links of commodities.
[0003] The existing cartons used for packaging electronic products or clothing are called airplane boxes, which are named because they resemble an airplane after being unfolded. When packaging, the airplane box can form a state where multiple layers of corrugated cardboard are stacked at three side positions, making the strength of these three sides relatively high and not easily damaged. However, the other positions lack the protection of this multi-layer corrugated cardboard stacking during transportation, resulting in relatively low strength and being easily damaged, thus affecting the quality and safety of the internal products.
[0004] In view of the above problems, a technical solution for a high-strength carton is proposed. Content of the Utility Model
[0005] The purpose of the utility model is to solve the problems in the prior art, and a high-strength carton is proposed.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a high-strength carton, including a bottom plate, first side plates are fixedly connected to the periphery of the bottom plate, a connecting strip is connected to each of a pair of symmetric first side plates, second side plates are connected to the connecting strips, a top plate is connected to one of the first side plates that is not connected to the connecting strip, and first strengthening structures are provided on both the top plate and the bottom plate.
[0007] The utility model is further provided that: the first strengthening structure includes a plurality of horizontal strips and vertical strips, and the plurality of horizontal strips and the plurality of vertical strips are arranged alternately to form a net-shaped support.
[0008] The utility model is further provided that: the connecting strip is provided with a plurality of placement grooves corresponding to the plurality of horizontal strips on the top plate, and the horizontal strips on the top plate are provided with placement ends towards the corresponding placement grooves.
[0009] The utility model is further provided that: the first side plate for connecting the top plate and the bottom plate is provided with a second strengthening structure towards the top plate and the bottom plate, the second strengthening structure is a plurality of "C"-shaped reinforcing ribs, and the reinforcing ribs are arranged along the plurality of vertical strips.
[0010] The present invention is further configured such that: a third side plate is fixedly provided on the side of the top plate away from the first side plate, and a plurality of snap-fit plates are provided on the third side plate, and snap-fit grooves are provided on the first side plate away from the top plate at the positions corresponding to the plurality of snap-fit plates.
[0011] The present invention is further configured such that: the bottom plate, the first side plate, the second side plate, the top plate, the third side plate, the first reinforcing structure, and the reinforcing ribs are all made of corrugated cardboard, and the corrugated cardboard is a three-layer corrugated cardboard.
[0012] In summary, this utility model has the following beneficial effects: by setting the first reinforcing structure on the top plate and the bottom plate, the stability and load-bearing capacity of the overall structure are enhanced, and damage to these positions due to lack of protection from multiple layers of corrugated cardboard stacking is avoided during transportation. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a structural development diagram of the present invention.
[0015] In the diagram: 1. Base plate; 2. First side plate; 21. Snap-fit groove; 3. Connecting strip; 31. Placement groove; 4. Second side plate; 5. Top plate; 6. First reinforcing structure; 61. Horizontal bar; 611. Placement end; 62. Vertical bar; 7. Reinforcing rib; 8. Third side plate; 9. Snap-fit plate. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present 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 the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0017] A high-strength cardboard box, such as Figure 1 as well as Figure 2 As shown, it includes a base plate 1, with first side plates 2 fixedly connected to all sides of the base plate 1, a pair of symmetrical first side plates 2 each connected to a connecting strip 3, each connecting strip 3 connected to a second side plate 4, a first side plate 2 not connected to a connecting strip 3 connected to a top plate 5, and both the top plate 5 and the base plate 1 are provided with a first reinforcing structure 6.
[0018] Practical effect: By arranging the first strengthening structure 6 on the top plate 5 and the bottom plate 1, the stability and load-bearing capacity of the overall structure are enhanced, avoiding damage to these positions due to lack of protection from stacking of multiple layers of corrugated cardboard during transportation.
[0019] As Figure 1 and Figure 2 shown, the first strengthening structure 6 includes several horizontal bars 61 and vertical bars 62. The several horizontal bars 61 and the several vertical bars 62 are arranged alternately. Through the mesh support formed by the intersection of the horizontal bars 61 and the vertical bars 62, the pressure borne by the carton is dispersed, enhancing the stability and load-bearing capacity of the overall structure, enabling the carton to maintain its structural integrity and not easily deform or be damaged when facing heavy objects or stacking pressure.
[0020] Furthermore, the connecting bar 3 is provided with several placement grooves 31. The placement grooves 31 correspond to the several horizontal bars 61 on the top plate 5. The horizontal bars 61 on the top plate 5 are provided with placement ends 611 towards the corresponding placement grooves 31. When packing, the placement ends 611 will extend into the placement grooves 31. When the top plate 5 is pressed, the force can be transmitted to the first side plate 2, the connecting bar 3 and the second side plate 4 through the contact between the placement ends 611 and the placement grooves 31, and the connection strength between the side wall of the carton and the top plate 5 is enhanced.
[0021] As Figure 1 and Figure 2 shown, the first side plate 2 for connecting the top plate 5 and the bottom plate 1 is provided with a second strengthening structure towards the top plate 5 and the bottom plate 1. The second strengthening structure is several "U"-shaped reinforcing ribs 7. The reinforcing ribs 7 are arranged along the several vertical bars 62. The design of the reinforcing ribs 7 enables the carton to withstand a large vertical pressure, enhancing the stability of the structure and making the carton not easily deform.
[0022] As Figure 1 and Figure 2 shown, a third side plate 8 is fixedly arranged on the side of the top plate 5 away from the first side plate 2. Several clamping plates 9 are arranged on the third side plate 8. The first side plate 2 away from the top plate 5 is provided with clamping grooves 21 corresponding to the positions of the several clamping plates 9. Through the cooperation of the clamping plates 9 and the clamping grooves 21, the packaging and opening of the carton are facilitated, enhancing the sealing and protection performance of the carton, and preventing the internal items from slipping or being damaged during transportation.
[0023] In this embodiment, the bottom plate 1, the first side plate 2, the second side plate 4, the top plate 5, the third side plate 8, the first strengthening structure 6 and the reinforcing ribs 7 are all made of corrugated cardboard. The corrugated cardboard is three-layer corrugated cardboard. The three-layer corrugated cardboard can provide strength and durability for the carton, ensuring the load-bearing capacity of the carton.
[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A high-strength carton comprising a base panel (1) characterised in that: The periphery of the bottom plate (1) is fixedly connected with first side plates (2). A pair of symmetric first side plates (2) are both connected with connecting strips (3), and the connecting strips (3) are both connected with second side plates (4). One of the first side plates (2) not connected with the connecting strip (3) is connected with a top plate (5). The top plate (5) and the bottom plate (1) are both provided with a first strengthening structure (6).
2. A high-strength carton according to claim 1, wherein: The first strengthening structure (6) includes a plurality of horizontal strips (61) and vertical strips (62). The plurality of horizontal strips (61) and the plurality of vertical strips (62) are arranged alternately to form a net-like support.
3. A high-strength carton according to claim 2, wherein: The connecting strip (3) is provided with a plurality of placement grooves (31). The placement grooves (31) correspond to the plurality of horizontal strips (61) on the top plate (5). The horizontal strips (61) on the top plate (5) are provided with placement ends (611) towards the corresponding placement grooves (31).
4. A high-strength carton according to claim 2, wherein: The first side plate (2) for connecting the top plate (5) and the bottom plate (1) is provided with a second strengthening structure towards the top plate (5) and the bottom plate (1). The second strengthening structure is a plurality of "C"-shaped reinforcing ribs (7), and the reinforcing ribs (7) are arranged along the plurality of vertical strips (62).
5. A high-strength carton according to claim 1, wherein: A third side plate (8) is fixedly arranged on one side of the top plate (5) away from the first side plate (2). A plurality of clamping plates (9) are arranged on the third side plate (8). The first side plate (2) away from the top plate (5) is provided with clamping grooves (21) at positions corresponding to the plurality of clamping plates (9).
6. A high-strength carton according to claim 1, wherein: The bottom plate (1), the first side plates (2), the second side plates (4), the top plate (5), the third side plates (8), the first strengthening structure (6) and the reinforcing ribs (7) are all made of corrugated paperboard, and the corrugated paperboard is three-layer corrugated paperboard.