Corrugated carton for express packaging
By setting up a movable paper frame in the corrugated carton and using the angle and chamfer structure of multiple sets of cardboard, the problem of insufficient compressive resistance of corrugated cartons is solved, and a more uniform pressure distribution and higher compressive resistance are achieved, reducing production costs.
Patent Information
- Application Number
- CN202421813397.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The existing corrugated cartons have insufficient compressive resistance and are easily crushed during express packaging and transportation. They cannot effectively protect packaged items during long-distance transportation. Cartons with good compression resistance require thicker and large quantities of corrugated cardboard, resulting in an increase in overall weight and an increase in packaging and transportation costs.
A corrugated carton for express packaging was designed. By setting a movable paper frame in the body of the carton and using the angle and chamfer structure between multiple sets of cardboards, a right-angle triangle structure is formed to strengthen the support effect and reduce the thickness and quantity requirements for corrugated cardboard.
Through this design, corrugated cartons can effectively disperse pressure when subjected to external pressure, making the pressure distribution more uniform, improving the pressure resistance and stability of the cartons, reducing production costs, and improving the practicality and compressive resistance of the cartons.
Smart Images
Figure CN222906394U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of corrugated cartons, in particular to a corrugated carton for express delivery packaging. Background Art
[0002] A corrugated carton refers to a packaging paper container made of corrugated cardboard through printing, die-cutting, stapling or gluing. As an outer package, the corrugated carton mainly plays a role in storage and protection during transportation. Its printed content can also play a role in beautifying the appearance, displaying products and advertising. Corrugated cartons have now become the most widely used packaging containers in modern commerce and trade, and are also one of the most important packaging forms adopted by countries around the world.
[0003] Corrugated cardboard has mechanical properties such as light weight, compressive resistance, puncture resistance, tear resistance, buffering, shock absorption, and easy processing and forming, good decoration and printing adaptability, and can be recycled and degraded easily. It has become the most widely used modern packaging material. Corrugated cardboard is a multi-layer adhesive body, which is a composite cardboard composed of one or more layers of corrugated base paper adhered between multiple layers of box board paper. According to different combinations, corrugated cardboard can be divided into single corrugated cardboard (three-layer corrugated cardboard), double corrugated cardboard (five-layer corrugated cardboard), and triple corrugated cardboard (seven-layer corrugated cardboard). The most critical index of corrugated cardboard is its compressive performance, which is related to the safety of the packaged products and is generally comprehensively reflected by physical properties such as burst strength, edge crush strength, and puncture strength.
[0004] However, when the existing corrugated forming device of corrugated paper is actually used, there are still many disadvantages. For example, the compressive capacity of the corrugated carton is insufficient, and it is easily crushed during the express delivery packaging and transportation process, and it cannot protect the packaged items from damage during long-distance transportation. And cartons with good compressive performance often need to be made of thicker and higher basis weight corrugated cardboard, which increases the overall weight of the carton and increases the packaging and transportation costs. Content of the Utility Model
[0005] Based on this, the purpose of the utility model is to provide a corrugated carton for express delivery packaging to solve the technical problems that the existing corrugated cartons have insufficient compressive capacity, are easily crushed during the express delivery packaging and transportation process, cannot protect the packaged items from damage during long-distance transportation, and cartons with good compressive performance often need to be made of thicker and higher basis weight corrugated cardboard, which increases the overall weight of the carton and increases the packaging and transportation costs.
[0006] To achieve the above object, the present utility model provides the following technical solutions: A corrugated cardboard box for express delivery packaging, comprising a cardboard box body, a cover plate is connected to the top of the cardboard box body, a movable paper frame is snap-connected inside the cardboard box body, the top of the left and right sides of the movable paper frame is connected with first cardboard in a symmetrical structure, one side of the first cardboard is connected with a second cardboard, the other side of the second cardboard is connected with a third cardboard, the top of the front and back sides of the movable paper frame is connected with fourth cardboard in a symmetrical structure, one side of the fourth cardboard is connected with a fifth cardboard, and the other side of the fifth cardboard is connected with a sixth cardboard. The included angles between the first cardboard, the second cardboard, the third cardboard, and between the fourth cardboard, the fifth cardboard, and the sixth cardboard are all triangular structures, and the height of the movable paper frame is the same as the inner diameter height of the cardboard box body.
[0007] By adopting the above technical solutions, during assembly, the cover plate on the top of the cardboard box body is opened, and then the movable paper frame is placed inside the cardboard box body. Then, the first cardboard and the fourth cardboard at a corner of the movable paper frame are turned downwards by 180° in sequence until the tops of the first cardboard and the fourth cardboard are in contact with the inner bottom of the cardboard box body. Then, the second cardboard and the fifth cardboard are folded inwards by 45° synchronously in a mirror image movement. Then, the outer surfaces of the third cardboard and the sixth cardboard are made to be in contact, and the ends of the third cardboard and the sixth cardboard are snapped into the included angle between the first cardboard and the fourth cardboard. At this time, the outer shapes of the first cardboard, the second cardboard, the fifth cardboard, and the fourth cardboard are right-angled triangles, and the third cardboard and the sixth cardboard are at the position of the perpendicular bisector of the right-angled triangle. When the height of the movable paper frame is the same as the inner diameter height of the cardboard box body, the entire movable paper frame can completely strengthen and support the cardboard box body. When the cardboard box body is subjected to external pressure, the cardboard of the right-angled triangle structure can effectively disperse the pressure and make the pressure distribution more uniform. Through the mutual cooperation between multiple groups of cardboard, it is not necessary to use thick and large-quantity corrugated cardboard for production, which can reduce production costs and is beneficial to improving the practicability and stability of the entire corrugated cardboard box for express delivery packaging.
[0008] The present utility model is further configured such that the included angle between the first cardboard and the fourth cardboard is in a vertical state, and first chamfers are provided at the ends where the first cardboard and the fourth cardboard are in contact, and the first chamfers are 45°.
[0009] By adopting the above technical solutions, when the first chamfer is 45°, the included angle side between the first cardboard and the fourth cardboard is 90°, which can assist the second cardboard, the third cardboard, the fifth cardboard, and the sixth cardboard to form a structural system with better overall strength, and helps to improve the overall stability and load-bearing capacity of the cardboard box body.
[0010] The present utility model is further configured such that the third cardboard is in contact with both sides of the sixth cardboard. Second chamfers are provided at one end where the third cardboard is in contact with the first cardboard and at one end where the sixth cardboard is in contact with the fourth cardboard, and the second chamfers are 45°.
[0011] By adopting the above technical solution, when the third cardboard is in contact with both sides of the sixth cardboard, the ends of the third cardboard and the sixth cardboard can better abut against the first cardboard and the fourth cardboard. Since the cardboard is made of hard cardboard, the 45° second chamfers can not only make the third cardboard and the sixth cardboard more stably stuck between the first cardboard and the fourth cardboard to play the role of a support plate, but also strengthen the tension between the second chamfers and the first cardboard and the fourth cardboard, which is beneficial to improving the stability and compressive resistance of the four corners of the carton body.
[0012] The present utility model is further configured such that the planes of the second cardboard and the fifth cardboard are on the same horizontal line.
[0013] By adopting the above technical solution, when the planes of the second cardboard and the fifth cardboard are on the same horizontal line, the third cardboard and the sixth cardboard can better fit together, playing the role of mutual extrusion and support.
[0014] The present utility model is further configured such that limiting cardboard is fixedly connected to both the front and back sides of the movable paper frame. A groove is provided in the middle of the limiting cardboard, and clamping grooves for cooperating with the limiting cardboard are provided on both sides of the carton body.
[0015] By adopting the above technical solution, through the mutual cooperation between the provided groove and the clamping groove, during assembly, the limiting cardboard is symmetrically folded, and then the limiting cardboard is passed through the clamping groove. When the limiting cardboard passes through the clamping groove, due to the characteristics of the limiting cardboard itself, the limiting cardboard is assisted to unfold again. At this time, the area of the limiting cardboard is larger than the area of the clamping groove, and the effect of locking and limiting can be achieved. During actual use, according to actual use needs, the limiting cardboard can be adhered to the outside of the carton body with tape, so as to improve the sealing performance inside the carton body and also enable the movable paper frame to be more stably used in cooperation with the carton body.
[0016] The present utility model is further configured such that handle openings are provided on both sides of the carton body, and the handle openings are of an elliptical structure.
[0017] By adopting the above technical solution, the provided handle openings are beneficial for the flexible handling and moving of the entire carton body. When the handle openings are designed in an elliptical structure, it can better conform to the natural curvature of the human fingers, reducing the extrusion and discomfort to the fingers during handling, and the ellipse can more evenly disperse stress when bearing pressure, so the anti-extrusion performance of the carton body is improved during transportation.
[0018] The present utility model is further configured such that first slots are provided on both sides of the movable paper frame, and second slots are provided on both sides of the movable paper frame.
[0019] By adopting the above technical solution, the first slots and the second slots provided can reduce the production cost and also reduce the weight of the entire carton body. Both the first slots and the second slots are rectangular structures, and arc chamfers are also provided at the included angle positions. When the carton body is squeezed, the effect of stress concentration can be reduced, and the stress is distributed more evenly, thereby achieving a certain compressive effect.
[0020] To sum up, the present utility model mainly has the following beneficial effects:
[0021] 1. In the present utility model, the cover plate at the top of the carton body is opened, and then the movable paper frame is placed into the carton body. Then, the first cardboard and the fourth cardboard at one corner of the movable paper frame are turned down 180° in sequence until the tops of the first cardboard and the fourth cardboard contact the inner bottom of the carton body. Then, the second cardboard and the fifth cardboard are folded inward by 45° synchronously in a mirror image movement, and then the outer surfaces of the third cardboard and the sixth cardboard are made to contact each other, and the ends of the third cardboard and the sixth cardboard are clamped into the included angle between the first cardboard and the fourth cardboard. At this time, the outer shapes of the first cardboard, the second cardboard, the fifth cardboard, and the fourth cardboard are right triangles, and the third cardboard and the sixth cardboard are at the position of the perpendicular bisector of the right triangle. When the height of the movable paper frame is the same as the inner diameter height of the carton body, the entire movable paper frame can completely strengthen and support the carton body. When the carton body is subjected to external pressure, the cardboard in the right triangle structure can effectively disperse the pressure and make the pressure distribution more uniform. Through the mutual cooperation between multiple groups of cardboard, it is not necessary to use thick and high-grammage corrugated cardboard for production, which can reduce the production cost and is beneficial to improving the practicability and stability of the entire corrugated carton for express delivery packaging;
[0022] 2. Through the mutual cooperation between the grooves and the card slots provided in the present utility model, during assembly, the limiting cardboard is symmetrically folded and then passed through the card slots. When the limiting cardboard passes through the card slots, due to the characteristics of the limiting cardboard itself, the limiting cardboard is assisted to unfold again. At this time, the area of the limiting cardboard is larger than the area of the card slots, and the effect of locking and limiting can be achieved. During actual use, according to actual use needs, the limiting cardboard can be adhered to the outside of the carton body through tape, thereby improving the sealing performance inside the carton body and enabling the movable paper frame to be more stably used in cooperation with the carton body. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0024] Figure 2 is a schematic diagram of the disassembled structure from the first perspective of the present utility model;
[0025] Figure 3 This is the second perspective schematic diagram of the disassembly structure of the present utility model;
[0026] Figure 4 This is the first perspective schematic diagram of the internal structure of the present utility model;
[0027] Figure 5 This is the second perspective schematic diagram of the internal structure of the present utility model.
[0028] In the figure: 1. Carton body; 2. Cover board; 3. Movable paper frame; 4. First slot; 5. Second slot; 6. First cardboard; 7. Second cardboard; 8. Third cardboard; 9. Fourth cardboard; 10. Fifth cardboard; 11. Sixth cardboard; 12. First chamfer; 13. Second chamfer; 14. Handle opening; 15. Limit cardboard; 16. Groove; 17. Card slot. Specific embodiments
[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.
[0030] Next, the embodiments of the present utility model will be described according to the overall structure of the present utility model.
[0031] Embodiment 1:
[0032] A corrugated carton for express delivery packaging, as Figures 1-5 shown, includes a carton body 1, a cover board 2 is connected to the top of the carton body 1, a movable paper frame 3 is snap-connected inside the carton body 1, first cardboard 6 is symmetrically connected to the top of the left and right sides of the movable paper frame 3, a second cardboard 7 is connected to one side of the first cardboard 6, a third cardboard 8 is connected to the other side of the second cardboard 7, fourth cardboard 9 is symmetrically connected to the top of the front and back sides of the movable paper frame 3, a fifth cardboard 10 is connected to one side of the fourth cardboard 9, and a sixth cardboard 11 is connected to the other side of the fifth cardboard 10. The included angles between the first cardboard 6, the second cardboard 7, the third cardboard 8, and between the fourth cardboard 9, the fifth cardboard 10, and the sixth cardboard 11 are all triangular structures, and the height of the movable paper frame 3 is the same as the inner diameter height of the carton body 1.
[0033] During assembly, the cover plate 2 on the top of the carton body 1 is propped open, and then the movable paper frame 3 is placed into the carton body 1, and then the first cardboard 6 and the fourth cardboard 9 at a corner of the movable paper frame 3 are turned down 180 degrees in turn, until the top of the first cardboard 6 and the fourth cardboard 9 are in contact with the bottom of the carton body 1, and then the second cardboard 7 and the fifth cardboard 10 are folded inward 45 degrees in a mirror motion, and then the outer surfaces of the third cardboard 8 and the sixth cardboard 11 are in contact, so that the ends of the third cardboard 8 and the sixth cardboard 11 are stuck in the angle between the first cardboard 6 and the fourth cardboard 9. At this time, the first cardboard 6, the second cardboard 7 and the fifth cardboard 1 0 and the fourth cardboard 9 have outer edges in a right triangle shape, the third cardboard 8 and the sixth cardboard 11 are located on the perpendicular bisector of the right triangle, and when the height of the movable paper frame 3 is the same as the inner diameter height of the carton body 1, the entire movable paper frame 3 can completely strengthen the support for the carton body 1. When the carton body 1 is subjected to external pressure, the cardboard with a right triangle structure can effectively disperse the pressure and make the pressure distribution more even. Through the mutual cooperation between multiple groups of cardboards, there is no need to use thicker and more quantitative corrugated cardboard, which can reduce production costs and is beneficial to improving the practicability and stability of the entire corrugated cardboard box for express packaging.
[0034] Furthermore, when the first chamfer 12 is 45°, the angle between the first cardboard 6 and the fourth cardboard 9 is 90°, which can assist the second cardboard 7, the third cardboard 8, the fifth cardboard 10 and the sixth cardboard 11 to form a structural system with better overall strength, which is helpful to improve the overall stability and carrying capacity of the carton body 1, and when the third cardboard 8 and the sixth cardboard 11 are in contact with each other, the ends of the third cardboard 8 and the sixth cardboard 11 can be better against the first cardboard 6 and the fourth cardboard 9, and the cardboards are all made of hardboard. Through the 45° second chamfer 13, not only can the third cardboard 8 and the sixth cardboard 11 be more stably stuck between the first cardboard 6 and the fourth cardboard 9 to play the role of a support plate, but also the tension between the second chamfer 13 and the first cardboard 6 and the fourth cardboard 9 can be strengthened, which is conducive to improving the stability and compression resistance of the four corners of the carton body 1.
[0035] In this embodiment, when the planes of the second cardboard 7 and the fifth cardboard 10 are on the same horizontal line, the third cardboard 8 and the sixth cardboard 11 can be better fitted together, achieving the effects of mutual extrusion and support. At the same time, with the mutual cooperation between the arranged grooves 16 and the card slots 17, during assembly, the limiting cardboard 15 is symmetrically folded, and then the limiting cardboard 15 is passed through the card slot 17. When the limiting cardboard 15 passes through the card slot 17, due to the characteristics of the limiting cardboard 15 itself, the limiting cardboard 15 is assisted to unfold again. At this time, the area of the limiting cardboard 15 is larger than the area of the card slot 17, and the effect of locking and limiting can be achieved. During actual use, according to actual usage needs, the limiting cardboard 15 can be adhered to the outside of the carton body 1 through tape, thereby improving the sealing performance inside the carton body 1 and enabling the movable paper frame 3 to cooperate with the carton body 1 more stably. Secondly, the arranged handle opening 14 is beneficial for the flexible handling and moving of the entire carton body 1. When the handle opening 14 is designed in an elliptical structure, it can better conform to the natural curvature of the human finger, reducing the extrusion and discomfort to the finger during handling, and the elliptical shape can disperse stress more evenly when bearing pressure, improving the anti-extrusion performance of the carton body 1 during transportation. Finally, the arranged first slotted opening 4 and the second slotted opening 5 can reduce production costs and also reduce the weight of the entire carton body 1. Both the first slotted opening 4 and the second slotted opening 5 are in a rectangular structure, and an arc chamfer is also provided at the included angle position, which can reduce the effect of stress concentration when the carton body 1 is squeezed, making the stress distribution more uniform, thereby achieving a certain anti-compression effect.
[0036] Embodiment 2:
[0037] Different from Embodiment 1, on the basis of the above Embodiment 1, in this Embodiment 1, a high-strength kraft box cardboard is used on the outside of the carton body and lightly coated with glue for bonding to improve the compressive strength of the product.
[0038] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and not limitations thereto. The specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions, and variations that do not contribute creatively to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.
Claims
1. A corrugated paper box for express packaging, comprising a paper box body (1), the top of which is connected to a cover plate (2), characterized in that: The carton body (1) is snap-connected with a movable paper frame (3) in a symmetrical structure. The tops of the left and right sides of the movable paper frame (3) are connected with first paperboards (6) in a symmetrical structure. One side of the first paperboard (6) is connected with a second paperboard (7), and the other side of the second paperboard (7) is connected with a third paperboard (8). The tops of the front and back sides of the movable paper frame (3) are symmetrically connected with fourth paperboards (9). One side of the fourth paperboard (9) is connected with a fifth paperboard (10), and the other side of the fifth paperboard (10) is connected with a sixth paperboard (11). The angles between the first paperboard (6), the second paperboard (7) and the third paperboard (8), and between the fourth paperboard (9), the fifth paperboard (10) and the sixth paperboard (11) are all triangular structures. The height of the movable paper frame (3) is the same as the inner diameter height of the carton body (1).
2. The corrugated paper box for express packaging according to claim 1, characterized in that: The angle between the first paperboard (6) and the fourth paperboard (9) is vertical, and the ends of the first paperboard (6) and the fourth paperboard (9) that are in contact are both provided with a first chamfer (12), and the first chamfer (12) is 45°.
3. The corrugated paper box for express packaging according to claim 1, characterized in that: The third paperboard (8) and the sixth paperboard (11) are in contact with each other on both sides, and the end of the third paperboard (8) in contact with the first paperboard (6) and the end of the sixth paperboard (11) in contact with the fourth paperboard (9) are both provided with a second chamfer (13), and the second chamfer (13) is 45°.
4. The corrugated paper box for express packaging according to claim 1, characterized in that: The planes of the second paperboard (7) and the fifth paperboard (10) are on the same horizontal line.
5. The corrugated paper box for express packaging according to claim 1, characterized in that: The movable paper frame (3) is fixedly connected to a limiting paperboard (15) on both sides, a groove (16) is provided in the middle of the limiting paperboard (15), and card slots (17) used in conjunction with the limiting paperboard (15) are provided on both sides of the carton body (1).
6. The corrugated paper box for express packaging according to claim 1, characterized in that: Handle openings (14) are provided on both sides of the carton body (1), and the handle openings (14) are of elliptical structure.
7. The corrugated paper box for express packaging according to claim 1, characterized in that: The movable paper frame (3) is provided with first slots (4) on both sides, and the movable paper frame (3) is provided with second slots (5) on both sides.