Corrugated carton convenient to assemble

By setting folding plates and double-sided adhesive on the top of the side panels of corrugated cardboard boxes, combined with insert plate design, the problems of cumbersome assembly and loosening of traditional corrugated cardboard boxes are solved, achieving rapid assembly and high stability, and reducing transportation costs.

CN224184746UActive Publication Date: 2026-05-01TIANJIN TIANHAO YONGSHENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN TIANHAO YONGSHENG TECH CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional corrugated cardboard box assembly relies on tape binding or metal stapling, which is cumbersome and time-consuming. The lack of a self-locking structure design leads to frequent loosening during transportation, increasing costs.

Method used

First and second folding plates are installed at the top of the first and second side panels of the corrugated cardboard box. The weight of the items is used to lock them in place. Combined with double-sided tape and insert plate design, this enables rapid assembly and enhances stability.

Benefits of technology

It enables rapid assembly and high stability of corrugated cardboard boxes, reduces the use of additional fixing components, lowers costs, and improves stability during transportation by locking the items by gravity.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224184746U_ABST
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Abstract

The corrugated carton convenient to assemble comprises a bottom plate, the front end and the rear end of the bottom plate are fixedly connected with first side plates, the left end and the right end of the bottom plate are fixedly connected with second side plates, the center of the top end of each first side plate is fixedly connected with a first folded plate, and the top end of each second side plate is fixedly connected with a second folded plate; the first folded plate and the second folded plate are arranged at the top ends of the first side plate and the second side plate respectively, the first folded plate and the second folded plate are bent during assembly, attached to the inner walls of the first side plate and the second side plate respectively and then make contact with the bottom plate, assembly is convenient and fast, locking can be achieved by means of the gravity of articles during follow-up article loading and taking, and assembly is convenient. The fixing can be realized without an object, and the larger the gravity is, the stronger the effect is, and the higher the stability is.
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Description

A type of easy-to-assemble corrugated cardboard box Technical Field

[0001] This utility model relates to the field of corrugated cardboard box technology, specifically to a corrugated cardboard box that is easy to assemble. Background Technology

[0002] Corrugated cardboard boxes, as a core carrier of modern logistics and product packaging, dominate the transportation, warehousing, and retail sectors due to their lightweight, recyclability, and cost advantages. However, traditional corrugated cardboard boxes still have significant shortcomings in assembly efficiency, structural strength, and environmental performance, making it difficult to meet the demands of modern industry for efficient, flexible, and sustainable packaging.

[0003] The assembly process of traditional corrugated cardboard boxes relies heavily on tape binding or metal stapling, which is cumbersome and time-consuming. Furthermore, existing boxes lack self-locking mechanisms, making them prone to loosening during transport due to weight, requiring additional reinforcement measures and further increasing overall costs. Therefore, a novel technical solution is proposed to address this issue. Summary of the Invention

[0004] The purpose of this utility model is to provide a corrugated cardboard box that is easy to assemble, which solves the problems mentioned in the background art. The assembly process of traditional corrugated cardboard boxes relies heavily on tape binding or metal nailing, which is cumbersome and time-consuming. In addition, existing cardboard boxes lack a self-locking structure design, and the problem of loosening due to weight during transportation is frequent, requiring additional reinforcement measures, which further increases the overall cost.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrugated cardboard box that is easy to assemble, comprising a base plate, wherein a first side plate is fixedly connected to both the front and rear ends of the base plate, and a second side plate is fixedly connected to both the left and right ends of the base plate, wherein a first folding plate is fixedly connected to the center of the top of the first side plate, and a second folding plate is fixedly connected to the top of the second side plate.

[0006] In this technical solution, a first folding plate and a second folding plate are respectively installed at the top of the first and second side plates. During assembly, the first and second folding plates are bent to fit against the inner walls of the first and second side plates, respectively, and then contact the base plate. Assembly is convenient, and the weight of the items themselves can be used to lock the items in place when loading and unloading them, without the need for any other objects to fix them. Moreover, the greater the weight, the stronger the effect and the higher the stability.

[0007] Preferably, the sidewalls of both the first side panel and the second side panel are covered with double-sided adhesive. The other side of the double-sided adhesive on the surface of the first side panel is bonded to the first folding plate, and the other side of the double-sided adhesive on the surface of the second side panel is bonded to the second folding plate.

[0008] Preferably, the inner side of the base plate is provided with a plurality of reinforcing ribs, which are equidistantly distributed and made of plastic.

[0009] Preferably, a label holder is fixedly adhered to the outer surface of one of the first side plates. The label holder is made of transparent plastic and is used to insert movable labels.

[0010] Preferably, the first folding plate has a positioning groove at its far end, and the first folding plate is in contact with both the first side plate and the bottom plate, while the second folding plate is in contact with both the second side plate and the bottom plate.

[0011] Preferably, insert plates are provided at both the left and right edges of the first side plate, and the insert plates are inserted into the inner side of the contact gap between the second side plate and the second folding plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model provides a first folding plate and a second folding plate at the top of the first and second side plates, respectively. During assembly, the first and second folding plates are bent and fitted to the inner walls of the first and second side plates, respectively, and then contacted with the bottom plate. This makes assembly convenient and allows the items to be locked in place by their own weight when loading and unloading, eliminating the need for additional fixing components, thus saving costs. Furthermore, the greater the weight, the stronger the effect and the higher the stability.

[0014] 2. This utility model uses insert plates and double-sided adhesive. After the first folding plate and the second folding plate are glued together by the double-sided adhesive, the insert plate of the first side plate is inserted into the gap between the second side plate and the second folding plate, thereby blocking the gap at the edge. At the same time, the first folding plate is interlocked with each other through the positioning groove, thereby ensuring the locking between the first folding plate and the second side plate, and further improving the stability of the carton. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 is an overall view of this utility model;

[0017] Figure 2 is a schematic diagram of the bottom structure of this utility model;

[0018] Figure 3 is a schematic diagram of the structure of the second side plate of this utility model;

[0019] Figure 4 is a schematic diagram of the structure of the first side plate of this utility model.

[0020] In the diagram: 1. Base plate; 101. Reinforcing rib; 2. Side plate No. 1; 201. Insert plate; 202. Folding plate No. 1; 203. Positioning groove; 3. Side plate No. 2; 301. Folding plate No. 2; 4. Label holder; 5. Double-sided tape. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description will further elaborate on them in conjunction with specific embodiments.

[0022] A corrugated cardboard box that is easy to assemble, as shown in Figures 1 to 4, includes a base plate 1. First side plates 2 are fixedly connected to both the front and rear ends of the base plate 1, and second side plates 3 are fixedly connected to both the left and right ends of the base plate 1. First folding plate 202 and second folding plate 301 employ a U-groove creasing process, resulting in a large bending angle and ensuring uniform springback force. Double-sided adhesive 5, a water-based acrylic adhesive, is pasted onto the side walls of both first side plates 2 and second side plates 3. After bonding with the corrugated cardboard, it can be directly crushed during the recycling process without separation, resulting in better environmental performance. First folding plate 202 is fixedly connected to the top center of first side plate 2, and second folding plate 301 is fixedly connected to the top of second side plate 3. The surface of first side plate 2... The other side of the double-sided tape 5 is bonded to the first folding plate 202, and the other side of the double-sided tape 5 on the surface of the second side plate 3 is bonded to the second folding plate 301. During assembly, the first side plate 2 and the second side plate 3 are erected, and the first folding plate 202 and the second folding plate 301 are bent up and made to fit against the inner side walls of the first side plate 2 and the second side plate 3 respectively. At this time, the first folding plate 202 and the second folding plate 301 are bonded by the double-sided tape 5. Then the first folding plate 202 and the second folding plate 301 are lowered and made to contact the base plate 1. This not only increases the thickness of the base plate 1, but also allows the items to be locked by their own weight when loading and unloading them. No other object is needed to fix them. The greater the weight, the stronger the effect and the higher the stability.

[0023] Specifically, as shown in Figure 4, a positioning groove 203 is provided at the far end of the first folding plate 202. The first folding plate 202 is in contact with both the first side plate 2 and the bottom plate 1. The second folding plate 301 is in contact with both the second side plate 3 and the bottom plate 1. Insert plates 201 are provided at the left and right edges of the first side plate 2. The insert plates 201 are inserted into the inner side of the contact gap between the second side plate 3 and the second folding plate 301. After the first folding plate 202 is lowered, it can be locked by interlocking with each other through the positioning groove 203, thereby pulling the first side plates 2 on both sides. When the first side plate 2 is erected, the insert plates 201 at both ends are inserted into the gap between the second side plate 3 and the second folding plate 301, thereby blocking the gap at the edge. At the same time, the first folding plates 202 are interlocked with each other through the positioning groove 203, thereby ensuring the locking between the first folding plate 202 and the second side plate 3, further improving the stability of the carton.

[0024] It is worth noting that, as shown in Figure 2, the inner side of the base plate 1 is provided with several reinforcing ribs 101. The reinforcing ribs 101 are evenly distributed and made of plastic, which can enhance strength and rigidity, improve load-bearing capacity, overcome the problem of uneven stress caused by differences in wall thickness, prevent the carton from twisting and deforming due to uneven force during stacking or transportation, and ensure that the carton maintains structural stability for a long time.

[0025] It is worth noting that, as shown in Figure 2, a label holder 4 is fixedly attached to the outer surface of one of the side panels 2. The label holder 4 is made of transparent plastic and is used to insert movable labels. The label holder 4 can insert labels, which can be quickly replaced compared to traditional sticker labels.

[0026] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

Claims

1. A corrugated carton for ease of assembly comprising a base panel (1) characterised in that: The base plate (1) is fixedly connected to the front and rear ends of a first side plate (2), and the base plate (1) is fixedly connected to the left and right ends of a second side plate (3). The first side plate (2) is fixedly connected to the center of the top of the first side plate (2), and the second side plate (3) is fixedly connected to the top of the second side plate (3) by a second folding plate (301).

2. The corrugated cardboard box for easy assembly according to claim 1, characterized in that: The side walls of both the first side plate (2) and the second side plate (3) are covered with double-sided adhesive tape (5). The other side of the double-sided adhesive tape (5) on the surface of the first side plate (2) is bonded to the first folding plate (202), and the other side of the double-sided adhesive tape (5) on the surface of the second side plate (3) is bonded to the second folding plate (301).

3. A corrugated carton of claim 1, wherein: The inner side of the base plate (1) is provided with a number of reinforcing ribs (101), which are equidistantly distributed and made of plastic.

4. A corrugated carton of claim 1, wherein: One of the side panels (2) has a label holder (4) fixedly attached to its outer surface. The label holder (4) is made of transparent plastic and is used to insert movable labels.

5. A corrugated cardboard box that is easy to assemble according to claim 1, characterized in that: The first folding plate (202) has a positioning groove (203) at its far end. The first folding plate (202) is in contact with the first side plate (2) and the bottom plate (1) at the same time. The second folding plate (301) is in contact with the second side plate (3) and the bottom plate (1) at the same time.

6. A corrugated carton of claim 1, wherein: The first side plate (2) is provided with insert plates (201) on both the left and right edges. The insert plates (201) are inserted into the contact gap between the second side plate (3) and the second folding plate (301).