Paperboard structure for paper box

Abstract

According to the paperboard structure used on the paper box, the third paper piece is arranged between the first paperboard and the second paperboard, the lifting part with the hand lifting hole extends out, and an extra hand lifting belt is abandoned. When a user shops, stores and carries the paper box, fingers directly penetrate through the hand lifting hole to lift the paper box, operation is convenient and fast, and daily use efficiency is greatly improved. And the sticking part of the third paper sheet and the double-sided tape are crucial. After the upper opening of the first paperboard is closed and bonded with the side face, the carton is of a tight mechanical structure. Displacement of the first paperboard is limited, loosening and deformation caused by carrying shaking are prevented, and the safety of articles is guaranteed; and when a heavy object is lifted, the force is uniformly dispersed to the bottom and two sides of the paper box, so that the damage caused by stress concentration is avoided, the service life of the paper box is prolonged, and a novel scheme integrating innovation and practicability is brought to paper box packaging.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper box technical field, concretely relates to a paperboard structure for paper box. BACKGROUND

[0002] In the packaging field, paper boxes and paper bags are two common packaging forms, each of which has a unique application scenario and characteristics.

[0003] Paper bags are widely used in the simple packaging of various small commodities due to their lightness and relatively low cost, and are particularly frequent in retail scenarios. In order to realize the convenient carrying function, the design of the paper bag is usually direct, that is, a carrying hole is directly formed on the bag surface of the paper bag through a simple hole forming process. After purchasing the goods, the consumer can easily carry the paper bag by inserting his fingers through the carrying hole, which is convenient and fast, and does not require additional accessories, which greatly meets the needs of daily quick packaging and carrying.

[0004] In comparison, paper boxes have outstanding performance in structural strength and protection performance, and are commonly used in packaging scenarios with high product protection requirements, such as electronic products, high-end gifts, and fragile products. However, when implementing the carrying function, paper boxes face many challenges. The conventional method in the industry is to additionally provide a carrying strap. Although this method solves the carrying problem, it introduces new drawbacks. On the one hand, the carrying strap, as an additional accessory, needs to be produced and purchased separately, which not only increases the material cost but also involves additional assembly processes, reducing production efficiency. On the other hand, the material of the carrying strap is often quite different from the paperboard material of the paper box itself, and the two cannot be perfectly matched in terms of texture, color, durability, and other aspects. For example, paper boxes often use hardboard to ensure stability, while carrying straps are commonly made of plastic, woven fabric, or soft leather, which greatly reduces the overall appearance and consistency of the packaging, failing to meet the current consumer's aesthetic pursuit of delicate and coordinated product packaging.

[0005] Starting from the material itself, paper boxes are usually made of paperboard, which has certain plasticity and processability. If the characteristics of paperboard can be fully exploited and the paperboard structure can be improved, a structure that does not affect the overall strength and protection function of the paper box and can easily form a carrying hole can be designed, which is expected to overcome the defects of the existing paper box carrying method and open up a new path for the realization of the carrying function of paper box packaging. This is a key problem that needs to be solved in the current packaging technology field. SUMMARY

[0006] In view of the problems pointed out in the background art, the utility model provides a paperboard structure for a paper box to solve the above technical problems.

[0007] The technical solution of the utility model is as follows:

[0008] A kind of paperboard structure for carton, including first paperboard, the inner side of the first paperboard is provided with second paperboard, the first paperboard is provided with slot, two third paper sheets are provided between the first paperboard and the second paperboard, two third paper sheets are located respectively on the left and right sides of the width direction of the slot, one end of the third paper sheet extends out handle part, the handle part extends from the slot, the handle part is provided with hand hole.

[0009] The utility model further sets up, two handle parts are mutually fixed and are bonded.

[0010] The utility model further sets up, the other end of the third paper sheet extends out pasting part, and the pasting part on left and right two third paper sheets respectively extends from the left and right sides of the first paperboard, and the pasting part is connected with double-sided adhesive tape.

[0011] The utility model further sets up, and the third paper sheet, handle part, pasting part of the same side are integrally arranged.

[0012] The utility model further sets up, and the third paper sheet, handle part, pasting part are provided with film layer.

[0013] The utility model further sets up, and the width of the third paper sheet is less than the width of the first paperboard.

[0014] The utility model further sets up, and the first paperboard, third paper sheet, second paperboard are mutually fixed and are bonded.

[0015] The utility model further sets up, and the rear side of the first paperboard is connected with rear paperboard, and the front side of the first paperboard is connected with folding part.

[0016] Adopt the above technical scheme, the beneficial effects of the utility model are as follows:

[0017] In the convenience of handling, by the third paper sheet between the first paperboard and the second paperboard, and extending handle part and setting hand hole, the traditional carton mode of relying on additional hand strap is completely changed.User no longer needs to worry about finding or installing hand strap, and finger can directly pass through hand hole and handle carton, and operation is simple and smooth, whether in shopping, storage or carrying scene, can quickly and easily move carton, greatly improves daily use efficiency.

[0018] From the structural stability consideration, the design of the third paper sheet's sticking part and double-sided tape cannot be ignored. When the first paperboard closes the upper opening of the carton and is fixedly bonded with the left and right side surfaces, the whole carton forms a compact mechanical structure system. On the one hand, the displacement of the first paperboard is limited, effectively preventing the carton from loosening and deforming due to shaking and collision during transportation, and ensuring the safety protection of the internal articles; on the other hand, the root of the lifting part is strengthened, so that the force can be evenly dispersed to the bottom and left and right sides of the carton when bearing heavy objects, avoiding stress concentration and causing local damage, prolonging the service life of the carton.

[0019] In terms of cost control and aesthetics, the additional carrying strap is abandoned, and the lifting function is realized by using the structure of the paperboard itself, which not only saves the raw material procurement, production and assembly cost of the carrying strap, but also makes the appearance of the carton more simple and unified. The materials of each part of the carton are consistent, and the color and texture are coordinated, meeting the current consumer's aesthetic pursuit of exquisite and simple product packaging, enhancing the market competitiveness of the product, and injecting innovation vitality into the development of the carton packaging industry. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0021] Figure 1 Structure diagram of the present application Figure 1 .

[0022] Figure 2 Exploded view of the present application.

[0023] Figure 3 Structure diagram of the present application Figure 2 .

[0024] Figure 4 Structure diagram of the carton of the present application.

[0025] Explanation of reference numerals in the drawings: first paperboard 1, second paperboard 2, slot 3, third paper sheet 4, lifting part 5, carrying hole 6, sticking part 7, double-sided tape 8, rear paperboard 9, folding part 10. DETAILED DESCRIPTION

[0026] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0027] The following references are made Figures 1-4 The utility model is described as follows:

[0028] Embodiment: a paperboard structure for a carton, the overall structure is arranged around the opening and side surface of the carton. The first paperboard 1 is in a key position, which is located at the upper opening of the carton, undertakes the task of closing the opening, and is stably connected with the rear paperboard 9 at the back side, forming the rear support part of the carton, and the folding part 10 connected at the front side provides convenience for subsequent internal fixing operation. When the first paperboard 1 closes the upper opening of the carton after the assembly of the carton is completed, the folding part 10 is folded inward and inserted into the carton, which not only enhances the stability of the upper structure of the carton, but also makes the whole carton more regular in appearance, avoiding problems such as looseness or lifting at the opening.

[0029] The second paperboard 2 is additionally arranged at the inner side of the first paperboard 1, and the two form a sandwich-like structure space. The slot 3 accurately arranged on the first paperboard 1 is a breakthrough for lifting function, which is in the shape of a long strip and strictly extends along the front-rear direction, defining the path for the operation of the subsequent components. The two third paper sheets 4 located between the first paperboard 1 and the second paperboard 2 are the key elements of the lifting design, which are respectively arranged at the left and right sides of the width direction of the slot 3 and closely fit in the sandwich space, relying on the support of the first paperboard 1 and the second paperboard 2. One end of the third paper sheet 4 extends outward, skillfully forming a lifting part 5, which extends along the slot 3 and reaches the upper side of the first paperboard 1, becoming the part directly contacted by the user. In addition, a hand lifting hole 6 is arranged on the lifting part 5, which conforms to the human hand gripping habit, facilitates the fingers to pass in, and realizes the easy lifting of the carton.

[0030] The two lifting parts 5 are fixedly bonded. This bonding process is not random, which strengthens the integrity and bearing capacity of the lifting structure. When the user holds the carton, the force is transmitted to the lifting part 5 through the hand lifting hole 6, and since the two lifting parts 5 are closely bonded, the stress can be evenly dispersed, avoiding damage or deformation of a single lifting part 5 due to uneven stress, ensuring that the carton can still be safely and stably lifted and moved when containing a certain weight of goods, greatly improving the convenience and reliability of the use of the carton, and effectively solving the problem of inconvenience of traditional cartons.

[0031] In summary, by carefully arranging the components in the paperboard structure of the carton, especially the design of the first paperboard 1, the second paperboard 2, the third paper sheet 4, and the related slot 3, the carrying part 5 and the hand carrying hole 6, an innovative paperboard structure system is constructed which not only does not affect the original protection function of the carton, but also efficiently realizes convenient carrying.

[0032] Further, the third paper sheet 4 exhibits multiple functionalities in structural design. In addition to the extension of one end to form the carrying part 5 for carrying, the other end extends to form the adhesive part 7, which has a very high practical value. The adhesive parts 7 of the left and right two third paper sheets 4 respectively extend from the left and right sides of the first paperboard 1. This arrangement is carefully considered to improve the stability of the carton structure in all directions.

[0033] The adhesive part 7 is connected with double-sided tape 8, which plays a key role in the assembly process of the carton as a reliable adhesive medium. When assembling the carton, the first paperboard 1 closes the upper opening of the carton, which is a key step, and the first paperboard 1 is fixed and adhered to the left and right sides of the carton with the help of the left and right adhesive parts 7 and the double-sided tape 8 thereon. Specifically, one side of the double-sided tape 8 closely adheres to the adhesive part 7, and the other side can quickly and firmly form an adhesive effect when it contacts the left and right sides of the carton, stably fixing the first paperboard 1.

[0034] From the perspective of mechanics and structural stability, this adhesive process is of great significance. On the one hand, it effectively limits the displacement of the first paperboard 1, avoiding unstable phenomena such as shaking and deviation of the first paperboard 1 during carton carrying and carrying, making the overall structure of the carton more compact; on the other hand, since the carrying part 5 is an integral structure with the third paper sheet 4, the third paper sheet 4 is fixed to the side of the carton through the adhesive part 7, indirectly strengthening the foundation of the carrying part 5, so that the carrying part 5 can rely on a more stable overall structure to disperse the force when it is subjected to the carrying force. That is, when the user carries the carton by the carrying part 5, the force is not only transmitted to the bottom of the carton through the carrying part 5 itself and the third paper sheet 4, but also dispersed to the left and right sides of the carton through the adhesive structure of the adhesive part 7 and the side of the carton, thereby greatly enhancing the stability and firmness of the carrying part 5, ensuring that the carton will not be damaged due to loose structure when carrying goods and moving, and improving the practicality and reliability of the carton in all directions.

[0035] The third paper sheet 4, the lifting part 5 and the sticking part 7 on the same side are integrally arranged, which has multiple advantages. From the production and manufacturing aspect, the integral molding reduces the assembly process of parts, reduces the defective rate caused by the assembly error of parts, improves the production efficiency and ensures the consistency of product quality. From the mechanical structure aspect, the integral structure makes the force transmission more smooth. When the user lifts the paper box, the force is generated from the lifting part 5 and can be quickly and uniformly dispersed to the sticking part 7 along the integral third paper sheet 4, so that the risk of fracture caused by the weak connection position is avoided, and the stability of the paper box lifting process is ensured.

[0036] Furthermore, the third paper sheet 4, the lifting part 5 and the sticking part 7 are provided with a film layer, which is an effective means to strengthen the structural strength. The film layer is closely attached to the surface of these parts. On the one hand, it can resist friction and scratching in daily use, prevent the surface of the paperboard from being damaged and prolong the service life of the parts. For example, during the process of frequently transporting the paper box in logistics or repeatedly taking the paper box from the supermarket shelf, the film layer acts as a solid armor to protect the internal paperboard structure. On the other hand, from the perspective of enhancing the mechanical properties, the film layer can enhance the tensile and compressive capacity of the paperboard, so that the third paper sheet 4 is more stable when bearing the lifting tensile force and the adhesive force of the sticking part 7, and ensures that the entire lifting structure can maintain reliable performance under different stress states.

[0037] In addition, the width of the third paper sheet 4 is smaller than the width of the first paperboard 1, which is not randomly set. Under the premise of meeting the lifting function requirement, the narrower third paper sheet 4 can reduce the overall weight of the paper box without affecting the internal space layout of the paper box, which is beneficial to reduce the cost of raw materials and transportation. Moreover, during assembly, the narrower third paper sheet 4 is easy to be accurately inserted into the interlayer space between the first paperboard 1 and the second paperboard 2, which is convenient, efficient and reduces the production time.

[0038] Finally, the first paperboard 1, the third paper sheet 4 and the second paperboard 2 are fixed and bonded to each other by glue, thereby building a stable internal support structure. The glue bonding ensures that the parts are closely attached, and when the paper box is subjected to external forces such as heavy object pressure and handling vibration, the internal structure will not be loose and displaced. Compared with the mechanical connection method, the glue bonding has no gap and the appearance is more smooth and beautiful, which not only ensures the structural integrity of the paper box, but also meets the current consumers' pursuit of exquisite appearance of packaging, and optimizes the comprehensive performance of the paper box from inside to outside.

[0039] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A paperboard structure for use on a carton comprising a first paperboard (1), characterized in that: The inner side of the first paperboard (1) is provided with a second paperboard (2), the first paperboard (1) is provided with a slot (3), the first paperboard (1) and the second paperboard (2) are provided with two third paper sheets (4), the two third paper sheets (4) are respectively located on the left and right sides of the width direction of the slot (3), one end of the third paper sheet (4) extends out a carrying part (5), the carrying part (5) extends out from the slot (3), and the carrying part (5) is provided with a hand hole (6).

2. A paperboard structure for use on a carton according to claim 1, characterized in that: The two carrying parts (5) are fixedly bonded to each other.

3. A paperboard structure for use on a carton according to claim 1, wherein: The other end of the third paper sheet (4) extends out a pasting part (7), the pasting parts (7) on the left and right two third paper sheets (4) respectively extend out from the left and right sides of the first paperboard (1), and the pasting part (7) is connected with double-sided adhesive tape (8).

4. A paperboard structure for use on a carton according to claim 3, wherein: The third paper sheet (4), the carrying part (5) and the pasting part (7) on the same side are integrally arranged.

5. A paperboard structure for use on a carton according to claim 4, wherein: The third paper sheet (4), the carrying part (5) and the pasting part (7) are provided with a film layer.

6. A paperboard structure for use on a carton according to claim 1, wherein: The width of the third paper sheet (4) is less than the width of the first paperboard (1).

7. A paperboard structure for use on a carton according to claim 1, wherein: The first paperboard (1), the third paper sheet (4) and the second paperboard (2) are fixedly bonded to each other.

8. A paperboard structure for use on a carton according to claim 1, wherein: The rear side of the first paperboard (1) is connected with a rear paperboard (9), and the front side of the first paperboard (1) is connected with a folding part (10).

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