A packaging box

By combining the inner bottom convex cardboard, inner side convex cardboard, inner end convex cardboard, and inner top convex cardboard with a stepped design and through-hole design, the problem of easy handling and shock absorption while ensuring the strength of the packaging box is solved, thus achieving efficient transportation and protection of the packaging box.

CN115636163BActive Publication Date: 2025-11-04XUZHOU ORANGE SPACE KITCHENWARE CO LTD
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
CN202110286897.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-03-17
Publication Date
2025-11-04
Estimated Expiration
2041-03-17

AI Technical Summary

Technical Problem

Existing packaging boxes, while ensuring structural strength, are not convenient for handling tightly stacked items and are easily damaged during transportation.

Method used

The packaging box employs a combination structure of inner bottom convex cardboard, inner side convex cardboard, inner end convex cardboard, and inner top convex cardboard. Through the stepped design and through-hole design, combined with the structure of reinforcing ribs and inclined plates, it enhances the strength of the packaging box and provides a cushioning and shock absorption effect.

Benefits of technology

It achieves the goal of facilitating the handling and compact stacking of items while ensuring structural strength, and provides good cushioning and shock absorption, preventing the packaging box from tearing and breaking during transportation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN115636163B_ABST
    Figure CN115636163B_ABST
Patent Text Reader

Abstract

The application discloses a packing box which can guarantee the structural strength of the packing box, facilitate the taking and placing of compactly-stacked articles in the packing box, and provide good buffering and shock absorption for the articles in the packing box. The application is characterized in that an inner bottom protruding paperboard is arranged at the bottom of an outer packing paperboard, the top surface of the inner bottom protruding paperboard is in a stepped structure, the inner bottom protruding paperboard is composed of at least five strip-shaped boards, the bottom surfaces of the strip-shaped boards are on the same straight line, the top surfaces of the strip-shaped boards are inclined surfaces, the thickness of the strip-shaped boards gradually decreases from one side of the inner bottom protruding paperboard to the other side of the inner bottom protruding paperboard, the width of one strip-shaped board on one side of the inner bottom protruding paperboard is larger than the width of the middle three strip-shaped boards, the width of one strip-shaped board on the other side of the inner bottom protruding paperboard is smaller than the width of the middle three strip-shaped boards, and two rows of circular through holes are formed in the strip-shaped board on one side of the inner bottom protruding paperboard and the middle three strip-shaped boards.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The packaging box relates to a packaging box for conveniently taking out articles, and belongs to the technical field of packaging. BACKGROUND

[0002] At present, when the existing milk product packaging box is used, the articles are tightly and compactly stacked between the milk product packages, and the packaging box tightly adheres to the articles, so that it is difficult to easily take out the articles from the extrusion of surrounding packages during taking out. If a gap for conveniently taking out the articles is left between the packaging box and the articles, the articles will shake during transportation, and the articles are damaged or broken. In the prior art, a vertical tearable strip is added to one side of the packaging box to provide a gap for taking out the articles, so that the packaging bag or the packaging bottle is conveniently taken out. However, this way reduces the structural strength of the packaging box, and the packaging box is easily torn and damaged during transportation and carrying.

[0003] Publication No. CN205221330U discloses a packaging box for conveniently taking out a pop can, which comprises a packaging box body and a packaging strip arranged on the side of the packaging box body. The packaging box body is provided with a dotted line hole, and the packaging strip is located at the dotted line hole and connected by a dotted line. When the device is used, the tearable packaging strip is torn along the dotted line hole to form a hollow gap, so that the finger can be stretched out through the gap to conveniently take out the pop can. However, this structure design reduces the overall structural strength of the packaging box, and the packaging box is easily torn and damaged at the position of the dotted line, so that the articles in the packaging box are leaked. SUMMARY

[0004] In order to improve the above situation, the packaging box provides a packaging box which can conveniently take out the compactly stacked articles in the interior while ensuring the structural strength of the packaging box, and can provide good buffering and shock absorption for the articles in the interior.

[0005] The application discloses a packaging box which is composed of outer wrapping paper, inner bottom protruding paperboard, inner side protruding paperboard, inner end protruding paperboard and inner top protruding paperboard. The inner bottom protruding paperboard is composed of through holes and strip-shaped plates and is arranged at the bottom of the outer wrapping paperboard. The top surface of the inner bottom protruding paperboard is in a stepped structure. The inner bottom protruding paperboard is composed of at least five strip-shaped plates. The bottom surfaces of the strip-shaped plates are on the same straight line. The top surfaces of the strip-shaped plates are inclined surfaces. The thickness of the strip-shaped plates gradually decreases from one side of the inner bottom protruding paperboard to the other side. The width of one strip-shaped plate on one side of the inner bottom protruding paperboard is larger than that of the middle three strip-shaped plates. The width of one strip-shaped plate on the other side of the inner bottom protruding paperboard is smaller than that of the middle three strip-shaped plates. Two rows of circular through holes are formed in the strip-shaped plate on one side of the inner bottom protruding paperboard and the middle three strip-shaped plates. One row of circular through holes is formed in the strip-shaped plate on the other side of the inner bottom protruding paperboard. Each row of circular through holes is composed of multiple circular through holes arranged at equal intervals. The inner side protruding paperboard is composed of through holes, reinforcing rib plates, inclined abutting plates and inclined plates. The inner side protruding paperboard is arranged at the inner two sides of the outer wrapping paperboard. Multiple reinforcing rib plates are fixedly arranged at equal intervals on the inner side protruding paperboard on one side of the inner bottom protruding paperboard. Adjacent reinforcing rib plates are connected through inclined abutting plates. The two sides of the inclined abutting plates and the other sides of the adjacent two reinforcing rib plates are connected. Three circular through holes are formed in the inclined abutting plates at equal intervals. The length of the top end of the reinforcing rib plate is shorter than the length of the bottom end of the reinforcing rib plate. One side of the reinforcing rib plate is perpendicular to the top of the inner side protruding paperboard. The other side of the reinforcing rib plate is an inclined surface. The bottom end of the inner side protruding paperboard is extended and protruded towards the reinforcing rib plate, forming an inclined plate. The top surface of the inclined plate is on the same inclined surface as the top surface of the strip-shaped plate on the other side of the inner bottom protruding paperboard. The bottom surface of the inclined plate is flush with the bottom surface of the strip-shaped plate on the other side of the inner bottom protruding paperboard. The top of the inner side protruding paperboard is an inclined surface. The inclination of the top of the inner side protruding paperboard is the same as the inclination of the top surface of the inclined plate. The bottom of the inner side protruding paperboard on the other side of the inner bottom protruding paperboard is an inclined surface. The inclination of the inclined surface is the same as the inclination of the top surface of the strip-shaped plate on one side of the inner bottom protruding paperboard. The inner end protruding paperboard is composed of through holes, reinforcing rib plates, fixed blocks and rectangular plates. The inner end protruding paperboard is arranged at the inner two ends of the inner wrapping paperboard. The inner end protruding paperboard on one end of the inner bottom protruding paperboard is composed of five fixed frames. The length and width of the five fixed frames are the same. The thickness of the five fixed frames gradually increases from one side of the inner top protruding paperboard to the other side of the inner end protruding paperboard. The five fixed frames are arranged in a stepped structure. The top surface and the bottom surface of the inner end protruding paperboard are both in a stepped structure. The bottom of the inner end protruding paperboard is correspondingly buckled with the top of the inner bottom protruding paperboard. At least three reinforcing rib plates are fixedly arranged at equal intervals in the fixed frame. The thickness of the reinforcing rib plate is the same as the thickness of the corresponding fixed frame. Four rectangular through grooves are formed between the fixed frame and the reinforcing rib plate. Rectangular plates are fixedly arranged on the rectangular through grooves. The rectangular plates are fixedly arranged on one side of the fixed frame. Three circular through holes are formed in the rectangular plates at equal intervals. The other side of the five fixed frames is on the same plane. The inner top protruding paperboard is composed of through holes, reinforcing rib plates and protruding abutting plates. The inner top protruding paperboard is arranged at the inner top of the inner wrapping paperboard. At least five rows of reinforcing rib plates are arranged on the inner top protruding paperboard. Each row of reinforcing rib plates is composed of multiple reinforcing rib plates.The top ends of the reinforcing rib plates are flush with the top surface of the inner top protruding paperboard, the bottom ends of the reinforcing rib plates are in slope structure, five rows of reinforcing rib plates form a stepped structure corresponding to the inner bottom protruding paperboard, the length of the reinforcing rib plate on one side of the inner top protruding paperboard is smaller than that of the three reinforcing rib plates in the middle, the length of the reinforcing rib plate on the other side of the inner top protruding paperboard is larger than that of the three reinforcing rib plates in the middle, the protruding abutting plates are arranged between adjacent reinforcing rib plates, the protruding abutting plates are arranged at the bottom ends of the corresponding reinforcing rib plates, the middle part of the reinforcing rib plate on one side of the inner top protruding paperboard is provided with a circular through hole, and two circular through holes are formed in the reinforcing rib plate on the other side of the inner top protruding paperboard and the three reinforcing rib plates in the middle.

[0006] Beneficial effects.

[0007] I. The packaging box can facilitate taking and placing of the compactly-stacked articles in the interior while ensuring the structural strength of the packaging box.

[0008] II. The taking and placing can be conveniently performed no matter from which face of the packaging box.

[0009] III. The articles in the interior can be provided with good buffering and shock absorption. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 A structural schematic view of the packaging box;

[0011] Figure 2 A perspective structural view of the packaging box, which only shows the internal structure after the outer packaging paperboard is removed;

[0012] Figure 3 A perspective split view of the packaging box, which only shows the internal structure after the outer packaging paperboard is removed;

[0013] Figure 4 A structural schematic view of a cross section of the packaging box.

[0014] IN THE DRAWINGS

[0015] In the drawings, 1 is an outer packaging paperboard, 2 is an inner top protruding paperboard, 3 is a packaging bottle, 4 is an inner side protruding paperboard, 5 is an inner bottom protruding paperboard, 6 is an inner end protruding paperboard, 7 is a through hole, 8 is a reinforcing rib plate, 9 is a protruding abutting plate, 10 is an inclined abutting plate, 11 is a strip-shaped plate, 12 is a fixed frame, 13 is a rectangular plate, and 14 is an inclined plate. DETAILED DESCRIPTION

[0016] The application discloses a packaging box which is composed of an outer wrapping paper, an inner bottom protruding paperboard (5), an inner side protruding paperboard (4), an inner end protruding paperboard (6) and an inner top protruding paperboard (2). The inner bottom protruding paperboard (5) is composed of through holes (7) and strip-shaped boards (11), and is arranged at the bottom of the outer wrapping paperboard (1). The top surface of the inner bottom protruding paperboard (5) is in a stepped structure. The inner bottom protruding paperboard (5) is composed of at least five strip-shaped boards (11). The bottom surfaces of the strip-shaped boards (11) are on the same straight line. The top surface of the strip-shaped board (11) is an inclined surface. The thickness of the strip-shaped board (11) gradually decreases from one side of the inner bottom protruding paperboard (5) to the other side of the inner bottom protruding paperboard (5). The width of one strip-shaped board (11) on one side of the inner bottom protruding paperboard (5) is greater than the width of the middle three strip-shaped boards (11). The width of one strip-shaped board (11) on the other side of the inner bottom protruding paperboard (5) is smaller than the width of the middle three strip-shaped boards (11). Two rows of circular through holes (7) are formed in the strip-shaped board (11) on one side of the inner bottom protruding paperboard (5) and the middle three strip-shaped boards (11). One row of circular through holes (7) is formed in the strip-shaped board (11) on the other side of the inner bottom protruding paperboard (5). Each row of circular through holes (7) is composed of multiple circular through holes (7) arranged at equal intervals. The inner side protruding paperboard (4) is composed of through holes (7), reinforcing rib plates (8), inclined abutting plates (10) and inclined plates (14). The inner side protruding paperboard (4) is arranged at the inner two sides of the outer wrapping paperboard (1). Multiple reinforcing rib plates (8) are fixedly arranged at equal intervals on the inner side protruding paperboard (4) on one side of the inner bottom protruding paperboard (5). Adjacent reinforcing rib plates (8) are connected through the inclined abutting plates (10). The two sides of the inclined abutting plate (10) and the other sides of the adjacent two reinforcing rib plates (8) are connected. Three circular through holes (7) are formed in the inclined abutting plate (10) at equal intervals. The length of the top end of the reinforcing rib plate (8) is shorter than the length of the bottom end of the reinforcing rib plate (8). One side of the reinforcing rib plate (8) is perpendicular to the top of the inner side protruding paperboard (4). The other side of the reinforcing rib plate (8) is an inclined surface. The bottom end of the inner side protruding paperboard (4) is extended in the direction of the reinforcing rib plate (8) to form the inclined plate (14). The top surface of the inclined plate (14) and the top surface of the strip-shaped board (11) on the other side of the inner bottom protruding paperboard (5) are on the same inclined surface. The bottom surface of the inclined plate (14) is flush with the bottom surface of the strip-shaped board (11) on the other side of the inner bottom protruding paperboard (5). The top of the inner side protruding paperboard (4) is an inclined surface. The inclination of the top of the inner side protruding paperboard (4) is the same as the inclination of the top surface of the inclined plate (14). The bottom of the inner side protruding paperboard (4) on the other side of the inner bottom protruding paperboard (5) is an inclined surface. The inclination of the inclined surface is the same as the inclination of the top surface of the strip-shaped board (11) on one side of the inner bottom protruding paperboard (5). The inner end protruding paperboard (6) is composed of through holes (7), reinforcing rib plates (8), fixed blocks and rectangular plates (13). The inner end protruding paperboard (6) is arranged at the inner two ends of the inner wrapping paperboard. The inner end protruding paperboard (6) at one end of the inner bottom protruding paperboard is composed of five fixed frames (12). The length and width of the five fixed frames (12) are the same.The thickness of the five fixed frames (12) increases from the inner top protruding paperboard (2) to the other side of the inner end protruding paperboard (6) in sequence, the five fixed frames (12) are arranged in a stepped manner, the top surface and the bottom surface of the inner end protruding paperboard (6) are both stepped structures, the bottom of the inner end protruding paperboard (6) is correspondingly buckled with the top of the inner bottom protruding paperboard (5), at least three reinforcing rib plates (8) are fixedly arranged in the fixed frame (12) at equal intervals, the thickness of the reinforcing rib plate (8) is the same as the thickness of the corresponding fixed frame (12), four rectangular through grooves are correspondingly formed between the fixed frame (12) and the reinforcing rib plate (8), a rectangular plate (13) is fixedly arranged on the rectangular through groove, the rectangular plate (13) is fixedly arranged on one side of the fixed frame (12), three circular through holes (7) are equidistantly arranged on the rectangular plate (13), the other side of the five fixed frames (12) is on the same plane, the inner top protruding paperboard (2) is composed of the through hole (7), the reinforcing rib plate (8) and the protruding plate (9), the inner top protruding paperboard (2) is arranged on the inner top of the packaging paperboard, at least five rows of reinforcing rib plates (8) are arranged on the inner top protruding paperboard (2), each row of reinforcing rib plates (8) is composed of a plurality of reinforcing rib plates (8), the top end of the reinforcing rib plate (8) is flush with the top surface of the inner top protruding paperboard (2), the bottom end of the reinforcing rib plate (8) is a slope structure, the five rows of reinforcing rib plates (8) are arranged to form a stepped structure corresponding to the inner bottom protruding paperboard (5), the length of the reinforcing rib plate (8) on one side of the inner top protruding paperboard (2) is smaller than the length of the three rows of reinforcing rib plates (8) in the middle, the length of the reinforcing rib plate (8) on the other side of the inner top protruding paperboard (2) is larger than the length of the three rows of reinforcing rib plates (8) in the middle, the protruding plate (9) is fixedly arranged between each adjacent reinforcing rib plate (8), the protruding plate (9) is arranged at the bottom end of the corresponding reinforcing rib plate (8), the circular through hole (7) is arranged in the middle of the reinforcing rib plate (8) on one side of the inner top protruding paperboard (2), two circular through holes (7) are arranged on the reinforcing rib plate (8) in the middle of the three rows of reinforcing rib plates (8) on the other side of the inner top protruding paperboard (2),

[0017] In use, the outer packaging paperboard (1) is adhered and fixed with the inner top protruding paperboard (2), the inner side protruding paperboard (4), the inner bottom protruding paperboard (5) and the inner end protruding paperboard (6), the bottom surface of the inner bottom protruding paperboard (5) and the inner side protruding paperboard (4) on one side of the inner bottom protruding paperboard (5) are placed on one side of the inner bottom protruding paperboard (5), the bottom surface of the inner bottom protruding paperboard (5) and the bottom surface of the inner side protruding paperboard (4) on the other side of the inner bottom protruding paperboard (5) are flush, the inner end protruding paperboard (6) is placed on the inner bottom protruding paperboard (5), the bottom surface of the inner end protruding paperboard (6) and the top surface of the inner bottom protruding paperboard (5) are correspondingly clamped through the stepped structure, the inner end protruding paperboard (6) is placed between the two inner side protruding paperboards (4), the inner top protruding paperboard (2) is placed on the two inner end protruding paperboards (6), the bottom surface of the inner top protruding paperboard (2) and the bottom surface of the inner end protruding paperboard (6) are correspondingly clamped through the stepped structure, then the inner top protruding paperboard (2), the inner side protruding paperboard (4), the inner bottom protruding paperboard (5) and the inner end protruding paperboard (6) are adhered and fixed, after being adhered and fixed, they are placed into the outer packaging paperboard (1) for adhering and fixing, then the outer packaging paperboard (1) is folded to form a box structure;

[0018] The inner bottom protruding paperboard (5) is provided with a stepped structure on the top surface, which can compactly arrange the packaging bottles (3) in order, and the packaging bottles (3) can be conveniently taken without being affected by the arrangement of the packaging bottles (3); the circular through hole (7) can produce ventilation effect, and can also buffer external impact force to protect the packaging bottles (3) in the box;

[0019] The inner bottom protruding paperboard (5) is provided with a circular through hole (7), which can reduce the adsorption force between the inner bottom protruding paperboard (5) and the outer packaging paperboard (1), facilitate taking out the inner bottom protruding paperboard (5), and facilitate taking out the articles from the bottom of the packaging box;

[0020] The inner side protruding paperboard (4) is provided with a circular through hole (7), which can reduce the adsorption force between the inner side protruding paperboard (4) and the outer packaging paperboard (1), facilitate taking out the inner side protruding paperboard (4), and facilitate taking out the articles from the two sides of the packaging box;

[0021] The inclined plate (14) and the strip-shaped plate (11) on the other side of the inner bottom protruding paperboard (5) are provided with the same inclined surfaces on the top surfaces, which can keep the surfaces of the inner side protruding paperboard (4) and the inner bottom protruding paperboard (5) flat after being adhered, and avoid damage of the packaging bottles (3) caused by knocking when the packaging bottles (3) in the box are not in order;

[0022] The design that the inner end protruding paperboard (6) is provided with a circular through hole (7) can reduce the adsorption force between the inner end protruding paperboard (6) and the outer packaging paperboard (1), facilitate taking out the inner end protruding paperboard (6), and facilitate taking out the articles from both ends of the packaging box;

[0023] The design that the bottom of the inner end protruding paperboard (6) is correspondingly buckled with the top of the inner bottom protruding paperboard (5) can strengthen the combination strength between the inner end protruding paperboard (6) and the inner bottom protruding paperboard (5), and simultaneously can limit each other, avoiding the inner end protruding paperboard (6) and the inner bottom protruding paperboard (5) from being deviated and misaligned;

[0024] The design that the inner top protruding paperboard (2) is provided with a circular through hole (7) can reduce the adsorption force between the inner top protruding paperboard (2) and the outer packaging paperboard (1), facilitate taking out the inner top protruding paperboard (2), and facilitate taking out the articles from the top of the packaging box;

[0025] The purpose that the structure strength of the packaging box can be ensured, the articles in the inside are conveniently taken and held, and the articles in the inside are provided with good buffering and shock absorption is achieved.

Claims

1. A packaging box, characterized by: The outer packaging paper comprises an inner bottom convex cardboard, inner side convex cardboard, inner end convex cardboard, and inner top convex cardboard. The inner bottom convex cardboard consists of through holes and strip plates, and is placed at the bottom of the outer packaging paperboard. The top surface of the inner bottom convex cardboard has a stepped structure and is composed of at least five strip plates, all with their bottom surfaces aligned. The inner side convex cardboard consists of through holes, reinforcing ribs, inclined plates, and inclined plates, and is placed on both sides inside the outer packaging paperboard. Multiple reinforcing ribs are equidistantly fixed on one side of the inner side convex cardboard of the inner bottom convex cardboard, and adjacent reinforcing ribs are connected by inclined plates. The two sides of the inclined plates are connected to the other side of two adjacent reinforcing ribs. The inner end convex cardboard consists of through holes, reinforcing ribs, and fixing blocks. It consists of a rectangular plate and an inner convex cardboard placed inside the inner packaging cardboard at both ends. The inner convex cardboard at one end of the inner convex cardboard is composed of five fixed frames. The thickness of the five fixed frames increases from one side of the inner top convex cardboard to the other side of the inner end convex cardboard. The five fixed frames are arranged in a stepped manner. The top and bottom surfaces of the inner end convex cardboard are both stepped structures. The inner top convex cardboard is composed of through holes, reinforcing ribs, and convex abutments. The inner top convex cardboard is placed at the top inside the inner packaging cardboard. At least five rows of reinforcing ribs are placed on the inner top convex cardboard. Each row of reinforcing ribs is composed of multiple reinforcing ribs. The top of the reinforcing ribs is flush with the top surface of the inner top convex cardboard, and the bottom of the reinforcing ribs is a sloping structure. The five rows of reinforcing ribs are arranged to form a stepped structure corresponding to the inner bottom convex cardboard.

2. A packaging box according to claim 1, characterized in that... The top surface of the strip is inclined, and the thickness of the strip gradually decreases from one side of the inner bottom convex cardboard to the other side of the inner bottom convex cardboard.

3. A packaging box according to claim 1, characterized in that... The width of one strip on one side of the inner bottom convex cardboard is greater than the width of the three middle strips, while the width of one strip on the other side of the inner bottom convex cardboard is smaller than the width of the three middle strips.

4. A packaging box according to claim 3, characterized in that... Two rows of circular through holes are opened on the strip plate on one side of the inner bottom convex cardboard and the three strip plates in the middle of the inner bottom convex cardboard. A row of circular through holes is opened on the strip plate on the other side of the inner bottom convex cardboard. Each row of circular through holes is composed of multiple circular through holes arranged at equal intervals.

5. A packaging box according to claim 4, characterized in that... The inclined plate has three circular through holes at equal intervals. The length of the top end of the reinforcing rib is shorter than the length of the bottom end of the reinforcing rib. One side of the reinforcing rib is perpendicular to the top of the inner convex cardboard. The other side of the reinforcing rib is an inclined surface. The bottom end of the inner convex cardboard protrudes and extends towards the reinforcing rib to form an inclined plate. The top surface of the inclined plate and the top surface of the strip plate on the other side of the inner bottom convex cardboard are on the same inclined surface.

6. A packaging box according to claim 3 or 4, characterized in that... The bottom surface of the inclined plate and the bottom surface of the strip plate on the other side of the inner bottom convex cardboard are flush. The top of the inner convex cardboard is an inclined surface, and the inclination of the top of the inner convex cardboard is the same as the inclination of the top surface of the inclined plate. The bottom of the inner convex cardboard on the other side of the inner bottom convex cardboard is an inclined surface, and the inclination of the inclined surface is the same as the inclination of the top surface of the strip plate on one side of the inner bottom convex cardboard.

7. A packaging box according to claim 1, characterized in that... The bottom of the inner end convex cardboard and the top of the inner bottom convex cardboard are fastened together. At least three reinforcing ribs are fixedly placed at equal intervals inside the fixing frame. The thickness of the reinforcing ribs is the same as the thickness of the corresponding fixing frame. Four rectangular through slots are formed between the fixing frame and the reinforcing ribs.

8. A packaging box according to claim 7, characterized in that... A rectangular plate is fixedly placed on the rectangular through groove. The rectangular plate is fixedly placed on one side of the fixed frame. Three circular through holes are equally spaced on the rectangular plate. The other side of the five fixed frames is on the same plane.

9. A packaging box according to claim 1, characterized in that... The length of one row of reinforcing ribs on one side of the inner top convex cardboard is smaller than the length of the three rows of reinforcing ribs in the middle, and the length of one row of reinforcing ribs on the other side of the inner top convex cardboard is larger than the length of the three rows of reinforcing ribs in the middle. A convex abutment is fixed between each row of adjacent reinforcing ribs, and the convex abutment is placed at the bottom end of the corresponding reinforcing rib.

10. A packaging box according to claim 9, characterized in that... A circular through hole is opened in the middle of the reinforcing rib on one side of the inner top convex cardboard, and two circular through holes are opened on the other side of the inner top convex cardboard and on the three middle rows of reinforcing ribs.

Citation Information

Patent Citations

  • Packing box convenient to easy open can of taking

    CN205221330U

  • Packaging box

    JP2002274529A

  • Fiberboard carton with secured die cut insert

    US20060042983A1

  • Glass plate packaging box, packaging method and package-opening method

    WO2005035394A1