Compression-resistant fireproof corrugated paper carton for cigarettes
By incorporating foldable square supports and cross-bracing structures within the corrugated cardboard box, the problem of insufficient compression resistance of the box is solved, achieving higher compression resistance and fire resistance, thus ensuring the safety of cigarette transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-06
AI Technical Summary
Existing corrugated cardboard boxes used for cigarette transportation have poor compression resistance and are easily damaged when stacked and subjected to gravity compression, affecting the quality of cigarettes.
The corrugated cardboard box is fitted with square linings, including vertical and horizontal guards. It can be folded into a square structure by opening grooves, and its compression resistance is improved by using high-strength cardboard and cross support strips. A fire-retardant coating is applied to enhance its fire resistance.
It improves the compression resistance of corrugated cardboard boxes, reduces the risk of deformation due to compression during transportation, and enhances fire resistance, ensuring the safe transportation of cigarettes.
Smart Images

Figure CN223972949U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the application of corrugated cardboard boxes for cigarettes, specifically a pressure-resistant and fireproof corrugated cardboard box for cigarettes. Background Technology
[0002] Corrugated cardboard boxes are packaging materials made of corrugated paper and linerboard, widely used for product transportation and storage. The structure of a corrugated cardboard box includes an outer linerboard and a middle corrugated paper. The corrugated shape of the corrugated paper enhances the strength and compression resistance of the box.
[0003] Corrugated cardboard boxes used for transporting cigarettes are specially designed for cigarette packaging and transportation. Since cigarettes are fragile and easily damaged goods, these boxes usually need to have high compression resistance, shock resistance, and moisture resistance to ensure that the cigarettes are not damaged during transportation.
[0004] Currently, in the actual packaging and transportation of cigarettes, conventional corrugated cardboard boxes are still mainly used for packaging. Conventional corrugated cardboard boxes have poor compression resistance. When multiple corrugated cardboard boxes are stacked and subjected to pressure, the packaging boxes are easily damaged, thus affecting the quality of the cigarettes. Utility Model Content
[0005] Therefore, the purpose of this utility model is to provide a pressure-resistant, fireproof corrugated cigarette box to solve the technical problems mentioned in the background.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure-resistant, fireproof corrugated cigarette box, comprising a corrugated box, wherein a square liner is provided inside the corrugated box, and a first support strip and a second support strip are provided on the top of the square liner, the square liner includes a vertical guard plate, and the size of the vertical guard plate matches the size of the corrugated box, and a first horizontal guard plate and a second horizontal guard plate are provided on the side of the vertical guard plate.
[0007] By adopting the above technical solution, and by setting a square liner to fit at the bottom of the corrugated cardboard box, the compression resistance of the bottom of the corrugated cardboard box can be improved. The square liner is made of paper corner protectors. By opening strip grooves, the paper corner protectors of a specified length can be bent into a square structure that matches the size of the corrugated cardboard box. Furthermore, by grinding the horizontal part of the paper corner protectors, the adjacent horizontal protective plates are distributed vertically. In this way, the square liner can be folded and folded, which is convenient for storage and transportation.
[0008] The present invention is further configured such that the side of the vertical guard plate is provided with four sets of strip grooves, and the vertical guard plate is bent into a square shape by the four sets of strip grooves, and the two ends of the vertical guard plate are reinforced with carton nails.
[0009] Preferably, by opening four sets of strip grooves, the vertical guard plate can be bent into a square shape, and the joint is bent slightly and the other end is reinforced with carton nails.
[0010] The present invention is further configured such that the first horizontal guard plate and the second horizontal guard plate are each provided in two sets, and the two sets of first horizontal guard plates are symmetrically arranged on the side of the vertical guard plate, and the two sets of second horizontal guard plates are symmetrically arranged on the side of the vertical guard plate.
[0011] Preferably, by setting the first and second horizontal guard plates at different heights, the square support can be deformed and contracted as a whole, so as to facilitate the storage and transportation of the product.
[0012] The present invention is further configured such that the two sets of second horizontal guard plates are located above the two sets of first horizontal guard plates.
[0013] Preferably, when the second horizontal guard plate is above the first horizontal guard plate, the square support can be folded and retracted at more angles, reducing the space occupied after retraction.
[0014] The present invention is further configured such that the first support bar and the second support bar are both composed of a long guard plate and a vertical corner guard, and both ends of the long guard plate are provided with vertical corner guards, and the corner guards and the corners of the vertical guard plate are matched.
[0015] Preferably, the stability of the square support is improved by using the first and second support bars, taking advantage of the superior stability of the triangle.
[0016] The present invention is further configured such that a fitting groove is provided at the top of the first support bar.
[0017] Preferably, by creating a fitting groove at the top of the first support bar, the first support bar can engage with the second support bar and maintain the same height.
[0018] The present invention is further provided that the bottom of the second support bar is provided with a fitting groove.
[0019] Preferably, a fitting groove is provided at the bottom of the second support bar, so that the second support bar can engage with the first support bar and maintain the same height.
[0020] The present invention is further configured such that the first support bar and the second support bar have the same length, and the first support bar and the second support bar are stacked and intersected vertically.
[0021] Preferably, by stacking and intersecting the first and second support bars, the compressive strength of the square support is improved by utilizing the principle that triangles have good stability.
[0022] The present invention is further configured such that the raw material of the square liner is paper corner protector, which is made of high-strength cardboard glued together.
[0023] Preferably, the strength of the square backing can be improved by using high-strength cardboard glued together.
[0024] The present invention is further configured such that the corrugated cardboard box is composed of seven layers of cardboard, including four layers of high-strength cardboard and three layers of corrugated cardboard.
[0025] Preferably, corrugated boxes made with seven layers of corrugated cardboard can improve their compression resistance.
[0026] In summary, the present invention has the following main advantages:
[0027] This invention improves the compressive strength of the bottom of a corrugated cardboard box by setting a square liner that fits into the bottom of the box. The square liner is made of paper corner protectors. By opening grooves, the paper corner protectors of a specified length can be bent into a square structure that matches the size of the corrugated cardboard box. Furthermore, the horizontal part of the paper corner protectors is polished so that the adjacent horizontal protectors are distributed vertically. As a result, the square liner can be folded and retracted for easy storage and transportation.
[0028] This invention utilizes two sets of intersecting first and second support bars to engage on the inner side of a square support. When the square support is supported by the first and second support bars, the triangular structure provides better stability, reducing the risk of deformation under pressure and further improving the compression resistance of the corrugated cardboard box. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the corrugated cardboard box structure of this utility model;
[0030] Figure 2 This is a schematic diagram of the internal structure of the corrugated cardboard box of this utility model;
[0031] Figure 3 This is a schematic diagram showing the installation of the square support, the first support strip, and the second support strip of this utility model.
[0032] Figure 4 This is a schematic diagram of the vertical guard plate structure of this utility model;
[0033] Figure 5 For the present utility model Figure 4 Enlarged view of point A in the image;
[0034] Figure 6 This is a schematic diagram showing the height distribution of the first and second horizontal guard plates of this utility model;
[0035] Figure 7 This is a schematic diagram of the first support strip structure of this utility model;
[0036] Figure 8 This is a schematic diagram of the vertical guard plate joint of this utility model.
[0037] Explanation of reference numerals in the attached figures:
[0038] 1. Corrugated cardboard box; 2. Square support; 201. Vertical guard plate; 202. First horizontal guard plate; 203. Second horizontal guard plate; 204. Strip groove; 3. First support bar; 301. Long guard plate; 302. Vertical corner protector; 4. Second support bar; 5. Fitting groove. Detailed Implementation
[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0040] The embodiments of this utility model will be described below based on its overall structure.
[0041] Please see Figure 1 - Figure 8 A pressure-resistant, fire-resistant corrugated cigarette box includes a corrugated box 1. The corrugated box 1 has a square support 2 inside. The square support 2 engages with the bottom of the corrugated box 1, improving its pressure resistance. The square support 2 is made of paper corner protectors. A groove 204 is provided to allow the paper corner protectors of a specified length to be bent into a square structure matching the size of the corrugated box 1. The horizontal portions of the paper corner protectors are sanded to ensure adjacent horizontal protectors are vertically aligned, allowing the square support 2 to be folded and retracted for easy storage and transportation. The top of the square support 2 has a first support strip 3 and a second support strip 4. The first support bar 3 and the second support bar 4 are arranged in a cross-shaped manner on the side. When the square support 2 is supported by the first support bar 3 and the second support bar 4, the square support 2 can reduce the risk of deformation under pressure due to the better stability of the triangular structure, and further improve the compression resistance of the corrugated cardboard box 1. The square support 2 includes a vertical guard plate 201, and the size of the vertical guard plate 201 matches the size of the corrugated cardboard box 1. The side of the vertical guard plate 201 is provided with a first horizontal guard plate 202 and a second horizontal guard plate 203. The corrugated cardboard box 1 is coated with a fireproof coating, such as fireproof paint, phosphate fireproof coating, water-based fireproof coating and sodium silicate coating, to improve the fireproof performance of the corrugated cardboard box 1.
[0042] Please refer to the above embodiments for further details. Figure 4 , Figure 5 and Figure 8 The vertical guard plate 201 has four sets of strip grooves 204 on its side, and the vertical guard plate 201 is bent into a square shape by the four sets of strip grooves 204. The two ends of the vertical guard plate 201 are reinforced with cardboard nails. By opening four sets of strip grooves 204, the vertical guard plate 201 can be bent into a square shape, and the joint is bent slightly and the other end is reinforced with cardboard nails.
[0043] Please refer to the above embodiments for further details. Figure 4 and Figure 6 The first horizontal guard plate 202 and the second horizontal guard plate 203 are each provided in two sets. The two sets of first horizontal guard plates 202 are symmetrically arranged on the side of the vertical guard plate 201, and the two sets of second horizontal guard plates 203 are symmetrically arranged on the side of the vertical guard plate 201. By setting the first horizontal guard plate 202 and the second horizontal guard plate 203 at different heights, the square support 2 as a whole can deform and shrink, so as to facilitate the storage and transportation of the product.
[0044] Please refer to the above embodiments for further details. Figure 6 The two sets of second horizontal guards 203 are located above the two sets of first horizontal guards 202. When the second horizontal guards 203 are located above the first horizontal guards 202, the square support 2 can be folded and retracted at more angles to reduce the space occupied after retraction.
[0045] Please refer to the above embodiments for further details. Figure 3 and Figure 7 The first support bar 3 and the second support bar 4 are both composed of a long guard plate 301 and a vertical corner guard 302. Both ends of the long guard plate 301 are provided with vertical corner guards 302, and the vertical corner guards 302 and the corners of the vertical guard plate 201 are matched. By utilizing the advantages of triangular stability, the stability of the square support 2 is improved through the first support bar 3 and the second support bar 4.
[0046] Please refer to the above embodiments for further details. Figure 7 The top of the first support bar 3 is provided with a fitting groove 5. By providing a fitting groove 5 on the top of the first support bar 3, the first support bar 3 can be engaged with the second support bar 4 and maintain the same height.
[0047] Please refer to the above embodiments for further details. Figure 3 and Figure 7 The bottom of the second support bar 4 is provided with a fitting groove 5, which allows the second support bar 4 to engage with the first support bar 3 and maintain the same height.
[0048] Please refer to the above embodiments for further details. Figure 3The first support bar 3 and the second support bar 4 are of the same length, and the first support bar 3 and the second support bar 4 are stacked and intersected vertically. By stacking and intersecting the first support bar 3 and the second support bar 4 vertically, the compressive strength of the square support 2 is improved by utilizing the principle that triangles have good stability.
[0049] Please refer to the above embodiments for further details. Figure 3 The square support 2 is made of paper corner protectors and is made of high-strength cardboard glued together. By using high-strength cardboard glued together to make the square support 2, the strength of the square support 2 can be improved.
[0050] Please refer to the above embodiments for further details. Figure 2 The corrugated cardboard box 1 is composed of seven layers of cardboard, including four layers of high-strength cardboard and three layers of corrugated cardboard. By setting seven layers of corrugated cardboard, the compression resistance of the cardboard box 1 can be improved.
[0051] In practical operation, when using the corrugated cardboard box 1 of this application to package and transport cigarettes, first unfold and assemble the corrugated cardboard box 1, then open the square liner 2, so that the square liner 2 is unfolded from the contracted and folded state into a square shape, and the worker snaps it into the bottom edge inside the corrugated cardboard box 1, and then takes out a set of first support strips 3 and second support strips 4.
[0052] First, a set of first support bars 3 are engaged with the two opposite corners of the square support 2. Then, another set of second support bars 4 are engaged with the other two opposite corners of the square support 2. The fitting groove 5 at the bottom of the second support bar 4 and the fitting groove 5 at the top of the first support bar 3 are engaged with each other. The square support 2, the first support bar 3 and the second support bar 4 can support the bottom of the corrugated cardboard box 1, improve the compression resistance of the corrugated cardboard box 1, and prevent the corrugated cardboard box 1 from being squeezed and deformed during transportation, which would affect the quality of the cigarettes. In addition, the corrugated cardboard box 1 is coated with a fire-retardant coating, such as fire-retardant paint, phosphate fire-retardant coating, water-based fire-retardant coating and sodium silicate coating, during the manufacturing process to improve the fire resistance of the corrugated cardboard box 1.
[0053] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A crush resistant, fire resistant, corrugated paper, carton for cigarettes comprising a corrugated paper carton (1) characterised in that: The corrugated carton (1) is internally provided with a square support (2), and the top of the square support (2) is provided with a first support bar (3) and a second support bar (4), the square support (2) comprises a vertical guard plate (201), and the size of the vertical guard plate (201) matches the size of the corrugated carton (1), the side of the vertical guard plate (201) is provided with a first horizontal guard plate (202) and a second horizontal guard plate (203).
2. A crush resistant, fire resistant, cigarette carton of claim 1, wherein: The side of the vertical guard plate (201) is provided with four groups of strip-shaped grooves (204), and the vertical guard plate (201) is bent into a square through the four groups of strip-shaped grooves (204), and the two ends of the vertical guard plate (201) are reinforced by carton nails.
3. A crush resistant, fire resistant, cigarette carton of claim 2, wherein: The first horizontal guard plate (202) and the second horizontal guard plate (203) are both provided with two groups, and the two groups of first horizontal guard plates (202) are symmetrically arranged on the side of the vertical guard plate (201), and the two groups of second horizontal guard plates (203) are symmetrically arranged on the side of the vertical guard plate (201).
4. A crush resistant, fire resistant, cigarette carton of claim 3, wherein: The two groups of second horizontal guard plates (203) are located above the two groups of first horizontal guard plates (202).
5. A crush resistant, fire resistant, cigarette carton of claim 4 wherein: The first support bar (3) and the second support bar (4) are both composed of a long guard plate (301) and a vertical corner (302), the two ends of the long guard plate (301) are both provided with a vertical corner (302), and the vertical corner (302) matches the corner of the vertical guard plate (201).
6. A crush resistant, fire resistant, cigarette carton of claim 5 wherein: The top of the first support bar (3) is provided with an embedding groove (5).
7. A crush resistant, fire resistant, cigarette carton of claim 6 wherein: The bottom of the second support bar (4) is provided with an embedding groove (5).
8. A crush resistant, fire resistant, cigarette carton of claim 7, wherein: The length of the first support bar (3) and the second support bar (4) is the same, and the first support bar (3) and the second support bar (4) are arranged in an up-down stacked and crossed manner.
9. A crush resistant, fire resistant, cigarette carton of claim 8, wherein: The raw material of the square support (2) is a paper corner, which is glued by high-strength paper boards.
10. A crush resistant, fire resistant, cigarette carton of claim 9, wherein: The corrugated carton (1) is composed of seven layers of paper boards, including four layers of high-strength paper boards and three layers of wave-shaped paper boards.