Carton easy to disassemble
The paper box design with fold lines and connection clips addresses the need for reusable, easy-to-disassemble packaging by ensuring structural integrity and reducing waste, enhancing usability and environmental friendliness.
Patent Information
- Application Number
- CN202422098821.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-28
AI Technical Summary
Traditional cartons are easily damaged during disassembly and difficult to reuse, and traditional packaging methods increase environmental burden and cost.
The easy-to-release carton designed with folding lines and connecting fasteners divides the side plate into straight parts and folding parts through folding lines, and connects them using the first and second connecting fasteners to achieve stable closure without tape or glue and easy disassembly.
The stable assembly and disassembly of cartons is achieved, reducing dependence on disposable packaging materials, improving reuse rate and environmental protection, and reducing manufacturing costs and environmental impact.
Smart Images

Figure CN223101294U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cartons, in particular to an easily disassembled carton. Background Art
[0002] In the modern logistics and packaging industries, cartons, as the main packaging containers, are widely used in the transportation, storage, and protection of various commodities. Traditional cartons are usually sealed with tapes, glues, or tear lines. Although these methods are simple, they have some significant drawbacks. First, tapes and glues not only increase the usage of packaging materials but also easily cause damage to the cartons during unpacking, making it difficult for the cartons to be reused. Second, although tear lines can quickly open the cartons, in actual operation, they often tear the cardboard, reducing the reuse rate of the cartons. In addition, these traditional sealing methods are prone to generating waste during the disassembly process, increasing the environmental burden and not meeting the current environmental protection requirements.
[0003] With the increasing awareness of environmental protection and the need to control logistics costs, the market's demand for carton designs that are reusable, easy to disassemble, and do not rely on disposable packaging materials is becoming more and more urgent. In the existing technology, although some tape-free sealed carton designs have begun to be applied, these designs often rely on complex structures or specific material processes, not only increasing the manufacturing cost but also having inconvenient operation problems during the assembly and disassembly processes and unable to meet the efficiency requirements in large-scale logistics scenarios.
[0004] In view of this, the inventor specifically designed an easily disassembled carton, and this case was thus generated. Summary of the Utility Model
[0005] (I) Technical Problems to be Solved
[0006] The purpose of this application is to provide an easily disassembled carton, which solves at least the problem of achieving firm closure, easy disassembly, and reusability of the carton without using tapes or glues.
[0007] (II) Technical Solutions
[0008] To solve the above technical problems, the utility model provides the following technical solutions:
[0009] This application provides an easily disassembled carton, including a cover board, a bottom board, and four side boards. One side of the side board is formed with a folding line by indentation. The folding line divides the side board into a straight part and a folding part. The straight parts and the folding parts of adjacent side boards are connected by a first connecting fastener. The long straight edges of the side board and the bottom board and the long straight edges of the side board and the cover board are connected by setting a second connecting fastener;
[0010] Among them, on both sides of the first connecting fastener, first slots are opened along the length direction and one end is penetrated, and the first slots are arranged in parallel; two second slots are penetrated along the length direction of the second connecting fastener, and the second slots are perpendicular to each other.
[0011] In a further embodiment, the first connecting fastener is rectangular, and a guiding inclined surface for facilitating the insertion of the side plate is arranged at the opening of the first slot.
[0012] In a further embodiment, a plurality of small rib fins are fixedly arranged on both side walls inside the first slot.
[0013] In a further embodiment, a flange for supporting the bottom plate extends on the end surface of the first connecting fastener away from the opening of the first slot.
[0014] In a further embodiment, the first connecting fastener is a polypropylene block.
[0015] In a further embodiment, the length of the first slot is equal to the height of the side plate.
[0016] In a further embodiment, the included angle between the straight part and the folding part is a right angle.
[0017] In a further embodiment, the second connecting fastener is L-shaped.
[0018] (III) Beneficial effects
[0019] Compared with the prior art, the detachable carton of the present utility model has the following beneficial effects:
[0020] 1. By providing the first connecting fastener and the second connecting fastener, the assembly and disassembly of the carton become simpler, and auxiliary materials such as glue and tape are not required. The design of the guiding inclined surface further simplifies the insertion process of the side plate, reduces the possibility of misoperation, and improves the assembly efficiency.
[0021] 2. By arranging rib fins inside the connecting fastener and using polypropylene material, the side plate is more stable after insertion and is not easy to loosen. The design of the connecting fastener (such as the full-length support of the first slot and the flange design) ensures that each part of the carton can maintain good structural integrity during use and is suitable for bearing larger loads.
[0022] 3. By using reusable connecting fasteners and modular design, the carton can be assembled and disassembled multiple times, reducing the use of disposable packaging materials. Using environmentally friendly materials such as polypropylene to make the connecting fasteners further improves the overall environmental friendliness. Description of the drawings
[0023] Among them:
[0024] Figure 1 Schematic diagram of the overall structure of the present utility model Figure 1 ;
[0025] Figure 2 Schematic diagram of the overall structure of the present utility model Figure 2 ;
[0026] Figure 3 Schematic diagram of the overall structure of the present utility model Figure 3 ;
[0027] Figure 4 Highlight the cooperation relationship between the first connection fastener and the side plate of the present utility model;
[0028] Figure 5 Schematic diagram of the overall structure of the side plate of the present utility model;
[0029] Figure 6 Schematic diagram of the overall structure of the first connection fastener of the present utility model;
[0030] Figure 7 Schematic diagram of the overall structure of the second connection fastener of the present utility model;
[0031] Figure 8 Of the present utility model Figure 3 Partial enlarged schematic diagram;
[0032] Figure 9 Schematic diagram of the carton assembly process of the present utility model.
[0033] Explanation of the reference numerals in the figure: 1. Cover plate; 2. Side plate; 21. Folding line; 22. Straight part; 23. Folding part; 3. Bottom plate; 4. First connection fastener; 41. First slot; 42. Guide inclined surface; 43. Rib; 44. Flange; 5. Second connection fastener; 51. Second slot. Detailed implementation manners
[0034] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model.
[0035] As Figure 1 and Figure 2As shown in the figure, the utility model discloses a detachable carton, which includes a cover board 1, a bottom board 3 and four side boards 2. One side of the side board 2 is formed with a folding line 21 by indentation. The folding line 21 divides the side board 2 into a straight part 22 and a folding part 23. The straight parts 22 and the folding parts 23 of adjacent side boards 2 are connected by a first connecting fastener 4. The long straight edges of the side board 2 and the bottom board 3 and the long straight edges of the side board 2 and the cover board 1 are connected by a second connecting fastener 5. By using the connecting fasteners and the preset folding line 21, the carton can be stably assembled without using glue or tape, and can be easily disassembled and reassembled, which is convenient for multiple uses. Among them, first slots 41 are opened on both sides of the first connecting fastener 4 along the length direction and one end is penetrated. The first slots 41 are arranged in parallel; two second slots 51 are penetrated along the length direction of the second connecting fastener 5. The second slots 51 are perpendicular to each other.
[0036] As Figure 4 shown, the main purpose of setting the folding line 21 is to ensure that the carton has a good three-dimensional shape and overall structural stability after assembly. After each board of the carton is folded through the folding line 21, it is converted from a planar state to a three-dimensional state. Through the folding line 21, the bottom board 3, the side board 2 and the cover board 1 can be accurately folded into the required angles, so as to form the three-dimensional shape of the carton. Simply inserting the edge of the board into the first slot 41 cannot form such a three-dimensional structure. The folding line 21 helps the board to be folded along a specific line, ensuring a firm connection between the side board 2 and the bottom board 3. This structure enhances the overall strength of the carton. The board without the folding line 21 may become loose or lose its shape after being inserted into the first slot 41, thus affecting the stability of the carton.
[0037] This design reduces the dependence on traditional packaging materials, reduces costs and environmental impacts. At the same time, the use of the first connecting fastener 4 and the second connecting fastener 5 ensures the structural strength of the carton, making it suitable for repeated use and recycling.
[0038] As Figure 4 and Figure 6 shown, the first connecting fastener 4 is rectangular, and a guiding inclined surface 42 is arranged at the opening of the slot. The guiding inclined surface 42 helps to guide the edge of the side board 2 to be smoothly inserted into the slot, ensuring the accuracy and convenience of the operation during the assembly process. Simplify the assembly process of the carton, enabling users to easily insert the side board 2 into the connecting fastener, reducing the assembly time and difficulty. The design of the guiding inclined surface 42 improves the ease of assembly, reduces assembly errors caused by misoperation, and ensures the stability and overall appearance of the carton.
[0039] A number of small fins 43 are provided on the inner side walls of the first slot 41. These fins 43 increase the friction and fixing force after the cardboard is inserted, preventing the side plate 2 from loosening or falling off after assembly. The presence of the fins 43 increases the firmness of the cardboard box, making it safer and more reliable during transportation and handling, and extending the service life of the cardboard box.
[0040] As Figure 2 and Figure 6 shown, a flange 44 for supporting the bottom plate 3 extends from the end face of the first connecting fastener 4, providing additional support to ensure that the bottom plate 3 remains horizontal and stable when connected to the side plate 2. Through the design of the flange 44, the supporting surface of the bottom plate 3 is increased, making the connection between the bottom plate 3 and the side plate 2 more stable, and preventing the bottom plate 3 from sinking or moving. The load-bearing capacity of the bottom of the cardboard box is improved. Especially when placing heavy objects, it can maintain the stability and shape of the bottom, preventing deformation or damage.
[0041] The first connecting fastener 4 is made of polypropylene material. Polypropylene has good elasticity and durability, can maintain its physical properties after multiple uses, and has the advantages of water resistance, moisture resistance, and chemical corrosion resistance. The polypropylene material makes the fastener light, durable and low-cost, suitable for large-scale production, and also has environmental protection advantages, helping to reduce resource consumption.
[0042] As Figure 3 shown, the length of the first slot 41 is equal to the height of the side plate 2, ensuring that the entire edge of the side plate 2 can be completely inserted into the slot, providing comprehensive fixation and support. Through the matching of the slot and the height of the side plate 2, it is ensured that after the side plate 2 is inserted into the connecting fastener, it can obtain uniform and comprehensive support, increasing the stability of the connection. This design provides stronger structural stability, avoiding bending or loosening of the side plate 2 caused by insufficient local support, and enhancing the overall strength of the cardboard box.
[0043] As Figure 5 shown, the angle between the straight part 22 and the folding part 23 is a right angle, enabling the side plate 2 to form a right-angle connection with the bottom plate 3 and other side plates 2 after assembly, constituting the three-dimensional structure of the cardboard box. By setting the right-angle folding line 21, it is ensured that the side plate 2 can form an accurate 90-degree angle after folding, giving the cardboard box an ideal three-dimensional shape and strength. The right-angle folding line 21 ensures the geometric accuracy of the cardboard box after assembly, enabling each angle to be closely aligned, guaranteeing the structural stability and aesthetics of the cardboard box.
[0044] As Figure 7 and Figure 8 shown, the second connecting fastener 5 is L-shaped and can connect the edges of the bottom plate 3 and the side plate 2 simultaneously, providing a stable connection for the integrity of the cardboard box.
[0045] The outer surfaces of the first connecting fastener 4 and the second connecting fastener 5 are provided with anti-slip textures, which increase the gripping force and operating stability of the user during assembly.
[0046] As Figure 9 shown, a brief description of the assembly of the carton in this application is as follows:
[0047] First step: Take four second connecting fasteners 5 and insert and fix them with the bottom plate 3 and the cover plate 1 respectively, and then place them.
[0048] Second step: Take a side plate 2 and insert it into the second connecting piece inserted into the bottom plate 3 in the previous step in the left-right direction and snap it. Take a first connecting fastener 4 and fix it with the side plate 2 from bottom to top through the first slot 41.
[0049] Third step: Take a side plate 2 and insert it into the first connecting fastener 4 in the previous step from top to bottom, and then take another first connecting fastener 4 and insert it into the side plate 2 in this step from bottom to top through the first slot 41.
[0050] Fourth step: Repeat the third step until the assembly of the entire carton around and at the bottom is completed.
[0051] Fifth step: Take the assembled cover plate 1 combination from the previous first step and insert it into the long straight edge of the side plate 2 from top to bottom through the second slot 51 in the second connecting fastener 5 to complete the assembly of the entire carton.
[0052] The disassembly direction of the carton can be achieved by repeating the above steps.
[0053] The above has made an exemplary description of the present invention in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as various non-substantive improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.
Claims
1. An easily disassembled carton, characterized in that, It includes a cover plate (1), a bottom plate (3) and four side plates (2). One side of the side plate (2) is formed with a folding line by indentation. The folding line divides the side plate (2) into a straight part (22) and a folding part (23). The straight parts (22) and the folding parts (23) of adjacent side plates (2) are connected by a first connecting fastener (4). The long straight edges of the side plate (2) and the bottom plate (3) and the long straight edges of the side plate (2) and the cover plate (1) are connected by setting a second connecting fastener (5). Wherein, first slots (41) are opened on both sides of the first connecting fastener (4) along the length direction and one end is penetrated, and the first slots (41) are arranged in parallel; two second slots (51) are opened through the second connecting fastener (5) along the length direction, and the second slots (51) are perpendicular to each other.
2. The easy-to-dismantle carton according to claim 1, wherein The first connecting fastener (4) is rectangular, and a guiding inclined surface (42) for facilitating the insertion of the side plate (2) is arranged at the opening of the first slot (41).
3. The easy-to-dismantle carton according to claim 2, characterized in that, A number of small fins (43) are fixedly arranged on both side walls inside the first slot (41).
4. A detachable carton according to any one of claims 1 to 3, characterized in that, A flange (44) for supporting the bottom plate (3) extends on the end surface of the first connecting fastener (4) far from the opening of the first slot (41).
5. The easy-to-dismantle carton according to claim 4, characterized in that, The first connecting fastener (4) is a polypropylene block.
6. The easy-to-dismantle carton according to claim 5, wherein, The length of the first slot (41) is equal to the height of the side plate (2).
7. The easy-to-dismantle carton according to claim 6, wherein The included angle between the straight part (22) and the folding part (23) is a right angle.
8. A detachable carton according to claim 1, wherein The second connecting fastener (5) is L-shaped.