High-strength packaging carton

By setting out external reinforcement parts in the lower corner of the outside of the carton, the problem of insufficient compressive strength and impact resistance of the carton is solved, and the protection and service life of the carton are enhanced.

CN223149043UActive Publication Date: 2025-07-25XIAMEN 889 PAPER CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422513525.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-17
Publication Date
2025-07-25
Estimated Expiration
2034-10-17

AI Technical Summary

Technical Problem

The compressive strength and impact resistance of existing cartons are poor, easily deformed or damaged, affecting their service life and possibly damaging internal items.

Method used

External reinforcement is provided in four corners below the outer side of the carton, including external protective parts and embedded plates. The external protective parts are L-shaped, and the embedded plates can be quickly installed to enhance the protection and strength of the corners.

Benefits of technology

Improves the protective effect and strength of the corners of the carton, prevents deformation and damage, protects internal items, and extends service life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223149043U_ABST
    Figure CN223149043U_ABST
Patent Text Reader

Abstract

The utility model provides a high-strength packaging carton which comprises a carton body and outer reinforcing pieces arranged at the four corners of the lower portion of the outer side of the carton body. The outer reinforcing piece comprises an L-shaped outer protection piece arranged on the outer side of the box body and an embedding plate arranged on the outer protection piece and used for being embedded in the box body. According to the packaging carton, the outer reinforcing pieces are arranged at the four corners of the lower portion of the outer side of the carton body, the outer protective pieces of the outer reinforcing pieces can protect the corners of the carton body, the strength of the corners of the carton body can be improved, and meanwhile the outer reinforcing pieces can be rapidly installed at the corners of the carton body through the arranged embedded plates.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of cartons, in particular to a high-strength packaging carton. Background Art

[0002] Cartons are the most widely used packaging products. Cartons are loved by people because of their low price, low production cost and recyclability. Although cartons are convenient to use, since they are made of paper, their compressive strength or impact resistance is poor (especially at the corners of the box). Due to the low strength and impact resistance of packaging cartons, most of such cartons may have the following problems:

[0003] First, it is easy to cause deformation or crushing of the packaging carton during use, resulting in a low service life of the packaging carton and affecting the normal use of the packaging carton.

[0004] Second, due to poor impact resistance, especially the corners of the box are easily damaged by bumps during handling, which affects the service life of the packaging carton and may also damage the items inside the carton.

[0005] Therefore, some of the existing cartons far cannot meet the current requirements of people for this product.

[0006] In view of this, the inventor specifically designed a high-strength packaging carton, and this case was thus generated. Summary of the Utility Model

[0007] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, an object of the utility model is to provide a high-strength packaging carton. By arranging outer reinforcing members at the four corners of the lower side of the outer side of the box body, the outer protective members of the outer reinforcing members can protect the corners of the box body, and at the same time improve the strength of the corners of the box body. At the same time, the provided embedding plates can quickly install the outer reinforcing members at the corners of the box body, overcoming the disadvantages brought by the poor compressive strength or impact resistance of the current box.

[0008] According to the high-strength packaging carton provided by the utility model, it includes:

[0009] A box body;

[0010] Outer reinforcing members, which are arranged at the four corners of the lower side of the outer side of the box body;

[0011] The outer reinforcing members include outer protective members arranged on the outer side of the box body and in an L shape, and embedding plates arranged on the outer protective members and used for embedding in the box body.

[0012] The packaging carton of the present utility model is provided with outer strengthening members at the four corners below the outer side of the box body. The outer protection members of the outer strengthening members can protect the corners of the box body and can also improve the strength of the corners of the box body. At the same time, the provided embedding plates can quickly install the outer strengthening members at the corners of the box body.

[0013] In some embodiments of the present utility model, the embedding plates are fixedly arranged inside the outer protection members.

[0014] In some embodiments of the present utility model, the outer protection members and the embedding plates can adopt an integral structure, and are directly injection-molded with plastic materials, or other fixing methods can also be adopted.

[0015] In some embodiments of the present utility model, the embedding plates are movably connected to the outer protection members, and the embedding plates pass through the outer side walls of the outer protection members and then are embedded in the box body.

[0016] In some embodiments of the present utility model, the plates of the box body are, from the inside to the outside, a honeycomb paper layer, a compression layer, a strengthening layer, and a polyethylene layer in sequence.

[0017] In some embodiments of the present utility model, strengthening support members are further arranged inside the box body.

[0018] In some embodiments of the present utility model, a strengthening plate is further arranged below the L-shaped outer protection member.

[0019] In some embodiments of the present utility model, the strengthening plate and the outer protection member can be directly integrally formed.

[0020] In some embodiments of the present utility model, first grooves are arranged above or / and below the connection positions of the embedding plates and the outer protection members.

[0021] In some embodiments of the present utility model, first through holes for the embedding plates to pass through are arranged on the outer protection members, and clamping grooves located at both ends of the first through holes are further arranged on the outer side walls of the outer protection members. Limit steps are arranged on both sides of the embedding plates.

[0022] In some embodiments of the present utility model, the inner size of the first through holes is adapted to the embedding plates.

[0023] In some embodiments of the present utility model, the height of the first through holes in the longitudinal direction is 1.1 - 3 times the thickness of the embedding plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present utility model, and constitute a part of the present utility model. The illustrative embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0025] Wherein:

[0026] Figure 1 is a schematic structural view of the high-strength packaging carton of the present utility model;

[0027] Figure 2 is an exploded view of the high-strength packaging carton of the present utility model;

[0028] Figure 3 is a schematic structural view of the external strengthening member of the present utility model Figure 1 ;

[0029] Figure 4 is a partial cross-sectional view of the box body of the present utility model;

[0030] Figure 5 is a schematic structural view of the external strengthening member of the present utility model Figure 2 ;

[0031] Figure 6 is a schematic structural view of the external strengthening member in another embodiment of the present utility model Figure 1 ;

[0032] Figure 7 is the present utility model Figure 6 partial enlarged view;

[0033] Figure 8 is a schematic structural view of the external strengthening member in another embodiment of the present utility model Figure 2 .

[0034] Reference numeral description:

[0035] 10. Box body; 11. Honeycomb paper layer; 12. Compression layer; 13. Reinforcement layer; 14. Polyethylene layer; 20. External strengthening member; 21. External protection member; 211. First through hole; 212. Card slot; 22. Embedded plate; 221. Limit step; 222. First groove; 23. Reinforcement plate; 30. Reinforcement support member. Detailed implementation manners

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Embodiment

[0037] Please refer to Figures 1 to 5, which is a high-strength packaging carton as an embodiment 1 of the present utility model, includes a box body 10 and an outer reinforcement member 20. The outer reinforcement member 20 is arranged at the four corners below the outer side of the box body 10; the outer reinforcement member 20 includes an outer protection member 21 arranged on the outer side of the box body 10 and in an L shape, and an embedding plate 22 arranged on the outer protection member 21 and used for embedding in the box body 10. The box body 10 can be the currently commonly used structure. When the bottom of the box body 10 is sealed, there will be gaps on both sides of the box body 10. The embedding plate 22 of the present utility model can be directly embedded into the gaps after the bottom is sealed to achieve the quick fixation of the outer reinforcement member 20. Of course, double-sided tape can be arranged on the inner side of the outer protection member 21 to further improve the reliability of the outer protection member 21 after installation. The packaging carton of the present utility model is provided with the outer reinforcement member 20 at the four corners below the outer side of the box body 10. The outer protection member 21 of the outer reinforcement member 20 can play a protective role for the corners of the box body 10, and can also improve the strength of the corners of the box body 10. At the same time, the arranged embedding plate 22 can quickly install the outer reinforcement member 20 at the corners of the box body 10.

[0038] For details, please refer to Figure 3 , the embedding plate 22 is fixedly arranged on the inner side of the outer protection member 21. The outer protection member 21 and the embedding plate 22 can adopt an integral structure, for example, directly injection-molded with plastic material, or other fixing methods can also be used. Specifically, there is a gap between one side of the embedding plate 22 and the inner side of the outer protection member 21.

[0039] For details, please refer to Figure 5 , the plates of the box body 10 are, from the inside to the outside, a honeycomb paper layer 11, a compressive layer 12, a strengthening layer 13, and a polyethylene layer 14; among them, the compressive layer 12 is a copperplate paper layer, and of course, it can also be a high-strength material with a similar compressive effect. The strengthening layer 13 adopts a corrugated paper layer. The polyethylene layer 14 is a high-density polyethylene film, which can play a good waterproofing effect; its thickness is 0.1 - 0.3 mm.

[0040] For details, please refer to Figure 1 、 2 , a strengthening support member 30 is also arranged inside the box body 10. The strengthening support member 30 can be fixedly installed inside the box body 10. The internal size of the box body 10 is consistent with the outer size of the strengthening support member 30. By strengthening the installation inside the box body 10, the overall strength of the box body 10 can be improved. Moreover, when the upper lid of the box body 10 is covered, it can press on the strengthening support member 30. A certain force can be exerted on the embedding plate 22 below the strengthening support member 30 to prevent the embedding plate 22 from being easily detached. To further improve the effect, the height of the strengthening support member 30 can be slightly higher than the internal height of the box body 10.

[0041] For details, please refer to Figure 4In this embodiment, another arrangement of the embedded plate 22 is as follows: the embedded plate 22 is movably connected to the outer protective member 21, and the embedded plate 22 passes through the outer wall of the outer protective member 21 and then is embedded in the box body 10. The outer protective member 21 is provided with a first through hole 211 for the embedded plate 22 to pass through, and the outer wall of the outer protective member 21 is also provided with a clamping groove 212 located at both ends of the first through hole 211, and limiting steps 221 are provided on both sides of the embedded plate 22. After the embedded plate 22 is installed in place, the limiting steps 221 are located in the clamping groove 212. The inner size of the first through hole 211 is adapted to the embedded plate 22 to ensure that the embedded plate 22 can be inserted into the first through hole 211; or, in order to adapt to box bodies 10 of different thicknesses, the height of the first through hole 211 in the longitudinal direction is 1.1-3 times the thickness of the embedded plate 22. In this method, the outer protective members 21 are first placed at the four corners of the box body 10 , and then the embedding plates 22 are inserted into the first through holes 211 and then embedded into the gaps of the box body 10 . Example

[0042] See also Figures 6 to 8 , is a high-strength packaging carton as the second embodiment of the utility model. The difference between this embodiment and the first embodiment is that a reinforcing plate 23 is further provided. Specifically, a reinforcing plate 23 is further provided below the L-shaped outer protective member 21. The reinforcing plate 23 and the outer protective member 21 can be directly integrally formed. With the structure of the second embodiment, the embedded plate 22 is preferably made into an adjustable structure to improve the adaptability of the outer reinforcing member 20. For example, when the embedded plate 22 is fixedly provided, in order to adapt to the box body 10 of different thicknesses, a first groove 222 is provided above or / and below the connection between the embedded plate 22 and the outer protective member 21, so that the embedded plate 22 has a margin for swinging up and down.

[0043] In summary, the packaging carton of the present invention arranges external reinforcements at the four lower corners of the outer side of the box body. The outer protective parts of the external reinforcements can protect the corners of the box body and improve the strength of the corners of the box body. At the same time, the embedded plates can quickly install the external reinforcements at the corners of the box body.

[0044] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A high-strength packaging carton, characterized in that, Comprising: A box body (10); External strengthening members (20), which are arranged at four corners below the outside of the box body (10); The external strengthening members (20) include an external protection member (21) arranged on the outside of the box body (10) and in an L shape, and an embedding plate (22) arranged on the external protection member (21) and used for embedding into the box body (10).

2. A high-strength packaging carton according to claim 1, characterized in that The embedding plate (22) is fixedly arranged inside the external protection member (21).

3. A high-strength packaging carton according to claim 1, characterized in that, The embedding plate (22) is movably connected to the external protection member (21), and the embedding plate (22) passes through the outer side wall of the external protection member (21) and then embeds into the box body (10).

4. A high-strength packaging carton according to claim 1, wherein, The plates of the box body (10) are, from the inside to the outside in sequence, a honeycomb paper layer (11), a compression-resistant layer (12), a strengthening layer (13), and a polyethylene layer (14).

5. A high-strength packaging carton according to claim 1, characterized in that, A strengthening support member (30) is further arranged inside the box body (10).

6. The high-strength packaging carton according to claim 1, characterized in that, A strengthening plate (23) is further arranged below the external protection member (21) in an L shape.

7. A high-strength packaging carton according to claim 6, characterized in that, A first groove (222) is arranged above or / and below the connection part of the embedding plate (22) and the external protection member (21).

8. A high-strength packaging carton according to claim 3 or 6, characterized in that, A first through hole (211) for the embedding plate (22) to pass through is arranged on the external protection member (21), and clamping grooves (212) located at both ends of the first through hole (211) are further arranged on the outer side wall of the external protection member (21), and limiting steps (221) are arranged on both sides of the embedding plate (22).

9. The high-strength packaging carton according to claim 8, wherein, The inner size of the first through hole (211) is adapted to the embedding plate (22).

10. A high-strength packaging carton according to claim 8, characterized in that, The height of the first through hole (211) in the longitudinal direction is 1.1 - 3 times the thickness of the embedding plate (22).