Internal reinforcing mechanism for packaging carton

By combining the inner box components and reinforcing plates, the problem of deformation and collapse of packaging cartons caused by external forces during transportation is solved, achieving cushioning and thermal insulation protection for the goods.

CN121106897APending Publication Date: 2025-12-12SHANGHAI UNIV
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Patent Information

Application Number
CN202410754589.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-06-12
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

Existing internal reinforcement mechanisms for packaging cartons are prone to deformation or collapse at sharp corners during handling or transportation due to external forces or heavy loads, resulting in damage to the contents.

Method used

It adopts components such as inner box assembly, outer reinforcement plate, buffer rubber pad, support spring and ring spring to form a quadrilateral structure. Combined with the design of corrugated plate and arc and hexagonal groove, it provides buffer and support to prevent impact and collision damage.

Benefits of technology

It effectively reduces the impact damage to goods during transportation, prevents the sharp corners of the carton from deforming and collapsing, and provides insulation and cushioning protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a packaging carton interior reinforcing mechanism, and relates to the technical field of packaging cartons, the packaging carton interior reinforcing mechanism comprises a carton assembly, the inner wall of the carton assembly is in lap joint with a reinforcing assembly, the inner wall of the carton assembly is movably sleeved with an inner carton body assembly, and the inner carton body assembly is located on the inner side of the reinforcing assembly; the inner box body assembly comprises an inner box body and four outer reinforcing plates, the outer sides of the four outer reinforcing plates are in lap joint with the inner wall of the carton box assembly, the inner sides of the four outer reinforcing plates are fixedly connected with inner reinforcing plates, and the inner sides of the inner reinforcing plates are fixedly connected with the edge of the inner box body. According to the internal reinforcing mechanism for the packaging carton, the bottom of the external reinforcing plate can be supported through cooperation of the supporting springs and the annular elastic pieces, a quadrangle is formed, and therefore certain buffering is conducted between the bottom of the inner carton body and the bottom of the inner cavity of the carton assembly, and impact force generated during falling is reduced.
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Description

Technical Field

[0001] This invention relates to the field of packaging carton technology, and in particular to an internal reinforcement mechanism for packaging cartons. Background Technology

[0002] Cardboard boxes are the most widely used packaging products. As an indispensable part of modern logistics, cardboard boxes bear the important responsibilities of containing, protecting, and presenting products aesthetically. The physical performance indicators of cardboard boxes serve as the basis for their quality assessment. The volume of cardboard boxes varies depending on the size of the goods. Cardboard boxes usually have various graphic or textual warnings such as "Handle with care," "Keep dry," "This way up," and "Fragile" to remind users to pay attention and protect the contents from damage.

[0003] The existing technology has the following problems: Existing internal reinforcement mechanisms for cardboard boxes often cause the sharp corners of the boxes to deform or collapse during handling or transportation due to external forces or the weight of the goods inside, resulting in damage to the goods. Summary of the Invention

[0004] The present invention provides an internal reinforcement mechanism for packaging cartons to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: An internal reinforcement mechanism for a packaging carton includes a carton assembly, wherein a reinforcement component overlaps the inner wall of the carton assembly, and an inner box assembly is movably sleeved on the inner wall of the carton assembly, with the inner box assembly located inside the reinforcement component. The inner box assembly includes an inner box and four outer reinforcing plates. The outer sides of the four outer reinforcing plates overlap with the inner wall of the carton assembly. An inner reinforcing plate is fixedly connected to the inner side of the four outer reinforcing plates. The inner side of the inner reinforcing plate is fixedly connected to the edge of the inner box. The upper and lower positions of the inner side of the outer reinforcing plate are fixedly connected to the upper and lower positions of the outer wall of the inner box. Several buffer rubber pads are fixedly connected to the bottom of the outer reinforcing plate. The reinforcement assembly includes four T-shaped rubber posts, four hexagon socket screws, and a mesh. The outer walls of the four T-shaped rubber posts are movably fitted with the four corners of the inner wall of the carton assembly and the four corners of the inner box. The middle of each T-shaped rubber post has an arc-shaped groove and a hexagonal groove. The hexagonal groove is located near the corner of the carton assembly. A pressure plate is inserted into the bottom of the outer wall of each hexagon socket screw, and an expansion cone seat is threaded to the top of the outer wall of each hexagon socket screw.

[0006] Preferably, a corrugated plate is fixedly connected between the inner side of the outer reinforcing plate and the outer side of the inner reinforcing plate, and the corrugated plate is corrugated.

[0007] Preferably, the inner side of the inner reinforcing plate and the outer wall of the inner box are filled with heat preservation particles.

[0008] Preferably, support springs are fixedly installed at the middle portions of the opposite faces of the two buffer rubber pads, and annular elastic sheets are fixedly connected at the edges of the two buffer rubber pads, and the support springs are located inside the annular elastic sheets.

[0009] Preferably, the inner wall of the arc-shaped groove is fixedly connected with an arc-shaped corrugated plate, and the inner wall of the hexagonal groove is fixedly connected with a hexagonal corrugated plate.

[0010] Preferably, the bottom of the T-shaped rubber column is fixedly connected with a tapered head, and the bottom of the outer wall of the tapered head is inserted into the top of the expansion cone seat.

[0011] Preferably, the four corners of the pull net are movably sleeved with the opposite faces of the expansion cone seat and the pressing plate.

[0012] Thanks to the above technical scheme, the present application has the following technical progress compared with the prior art: The present application provides a packaging carton internal reinforcing mechanism, which can support the bottom of the outer reinforcing plate by cooperation between the support springs and the annular elastic sheets, form a quadrilateral, and buffer the bottom of the inner box and the bottom of the carton assembly cavity to reduce the impact force generated when falling.

[0013] The present application provides a packaging carton internal reinforcing mechanism, which can buffer the four collisions by the action of the corrugated plates, reduce the damage caused by the collisions to the goods, and can also insulate the inner and outer parts by the action of the inner reinforcing plate, reduce the damage caused by the large temperature difference between the inner and outer parts, and also has a certain buffering effect.

[0014] The present application provides a packaging carton internal reinforcing mechanism, which can protect the four vertical edges and sharp corners inside the carton assembly by the left and right of the arc-shaped corrugated plate and the hexagonal corrugated plate, and effectively reduce the damage caused by the impact to the sharp corners of the carton assembly.

[0015] The present application provides a packaging carton internal reinforcing mechanism, which is inserted between the tapered head and the expansion cone seat, so as to install the pull net at the bottom of the T-shaped rubber column, and play a supporting role for the bottom of the inner box. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective structural schematic view of the present application; Figure 2 It is a sectional view structural schematic view of the present application; Figure 3 It is a bottom structural schematic view of the inner box assembly and the reinforcing assembly of the present application; Figure 4 This is a schematic diagram of the structure of the reinforcement component of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the connection between the mesh and the T-shaped rubber column of the present invention; Figure 7 This is a schematic diagram of the internal structure of the buffer rubber pad of the present invention.

[0017] In the picture: 1. Cardboard box assembly; 2. Inner casing assembly; 21. Inner casing; 22. Insulation filling particles; 23. Inner reinforcing plate; 24. Corrugated plate; 25. Outer reinforcing plate; 26. Buffer rubber pad; 261. Support spring; 262. Annular spring sheet; 3. Reinforcing components; 31. T-shaped rubber column; 32. Mesh net; 33. Arc-shaped corrugated plate; 34. Hexagonal corrugated plate; 35. Conical head; 36. Expansion cone seat; 37. Pressure plate; 38. Socket head screw. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0019] like Figures 1-7 As shown, a packaging carton internal reinforcement mechanism includes a carton assembly 1, a reinforcement component 3 overlapping the inner wall of the carton assembly 1, and an inner box assembly 2 movably sleeved on the inner wall of the carton assembly 1, with the inner box assembly 2 located inside the reinforcement component 3. When assembling the various mechanisms of the internal reinforcement mechanism of the packaging carton after production, first, the reinforcement component 3 is placed on the outer wall of the inner box component 2 from the bottom. Then, the carton component 1 is placed on the outer wall of the inner box component 2 and the reinforcement component 3, so that the carton component 1, the inner box component 2 and the reinforcement component 3 are in close contact, and a packaging carton internal reinforcement mechanism can be assembled.

[0020] The inner box assembly 2 includes an inner box 21 and four outer reinforcing plates 25. The outer sides of the four outer reinforcing plates 25 overlap with the inner wall of the carton assembly 1. An inner reinforcing plate 23 is fixedly connected to the inner side of the four outer reinforcing plates 25. The inner side of the inner reinforcing plate 23 is fixedly connected to the edge of the inner box 21. The upper and lower positions of the inner side of the outer reinforcing plate 25 are fixedly connected to the upper and lower positions of the outer wall of the inner box 21. Several buffer rubber pads 26 are fixedly connected to the bottom of the outer reinforcing plate 25. The inner box assembly 2 is equivalent to an inner liner, which separates the placed items from the cardboard box assembly 1, thereby better protecting the items and reducing damage during transportation; and a certain cavity is formed by the inner box 21, the inner reinforcing plate 23 and the outer reinforcing plate 25 to reinforce the internal structure.

[0021] The reinforcing component 3 includes four T-shaped rubber posts 31, four hexagon socket screws 38, and a mesh 32. The outer walls of the four T-shaped rubber posts 31 are movably connected to the four corners of the inner wall of the carton assembly 1 and the four corners of the inner box 21. The middle part of the T-shaped rubber posts 31 is provided with an arc-shaped groove and a hexagonal groove. The hexagonal groove is close to the corner of the carton assembly 1. A pressure plate 37 is inserted into the bottom of the outer wall of the hexagon socket screw 38, and an expansion cone seat 36 is threaded to the top of the outer wall of the hexagon socket screw 38.

[0022] The four T-shaped rubber posts 31 and the pull net 32 ​​work together to reinforce the four corners, which can effectively reduce the impact on the goods placed inside when bumped. At the same time, the pull net 32 ​​can be used to support the bottom of the inner box 21 to prevent collapse.

[0023] like Figure 2 As shown, a corrugated plate 24 is fixedly connected between the inner side of the outer reinforcing plate 25 and the outer side of the inner reinforcing plate 23. The corrugated plate 24 is corrugated.

[0024] The corrugated plate 24 can be used to buffer collisions from all four sides and reduce the damage to goods caused by the collisions.

[0025] like Figure 2 As shown, the space between the inner side of the inner reinforcing plate 23 and the outer wall of the inner box 21 is filled with insulating particles 22.

[0026] The inner reinforcing plate 23 provides insulation between the inside and outside, reducing damage to goods caused by large temperature differences between the inside and outside, and also provides a certain buffering effect.

[0027] like Figure 3 and Figure 7 As shown, a support spring 261 is fixedly installed at the middle of the opposite sides of the two buffer rubber pads 26, and an annular spring piece 262 is fixedly connected at the edge of the two buffer rubber pads 26. The support spring 261 is located inside the annular spring piece 262.

[0028] By utilizing the cooperation between the support spring 261 and the annular spring 262, the bottom of the outer reinforcing plate 25 can be supported to form a quadrilateral, thereby providing a certain buffer between the bottom of the inner box 21 and the bottom of the inner cavity of the carton assembly 1, reducing the impact force generated when falling.

[0029] likeFigure 5 As shown, an arc-shaped corrugated plate 33 is fixedly connected to the inner wall of the arc-shaped groove, and a hexagonal corrugated plate 34 is fixedly connected to the inner wall of the hexagonal groove.

[0030] By utilizing the left and right sides of the curved corrugated plate 33 and the hexagonal corrugated plate 34, the four vertical sides and sharp corners inside the carton assembly 1 can be protected, which can effectively reduce the damage to the sharp corners of the carton assembly 1 caused by impact.

[0031] like Figure 6 As shown, a cone head 35 is fixedly connected to the bottom of the T-shaped rubber column 31, and the bottom of the outer wall of the cone head 35 is inserted into the top of the expansion cone seat 36.

[0032] The left and right sides of the cone head 35 and the expansion cone seat 36 are used to install the mesh 32 at the bottom of the T-shaped rubber column 31, so as to support the bottom of the inner box 21. like Figure 6 As shown, the four corners of the mesh 32 are movably connected to the opposite surfaces of the expansion cone seat 36 and the pressure plate 37.

[0033] The expansion cone seat 36 and the pressure plate 37 are used to better install the four corners of the mesh 32.

[0034] The working principle of this invention is as follows: First, the reinforcing component 3 is fitted onto the outer wall of the inner box component 2 from the bottom. Then, the carton component 1 is fitted onto the outer wall of the inner box component 2 and the reinforcing component 3, so that the carton component 1, the inner box component 2 and the reinforcing component 3 are in close contact, thus assembling a packaging carton internal reinforcing mechanism. The inner box component 2 is equivalent to an inner liner, so as to separate the placed items from the carton component 1, thereby better protecting the items and reducing damage caused to the items during transportation. A certain cavity is formed by the inner box 21, the inner reinforcing plate 23 and the outer reinforcing plate 25 to reinforce the internal structure. The cooperation between the four T-shaped rubber pillars 31 and the mesh 32 can reinforce the four corners, which can effectively reduce the impact on the goods placed inside when bumped. At the same time, the mesh 32 can be used to support the bottom of the inner box 21 to prevent collapse.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A packaging carton internal reinforcement mechanism, comprising a carton assembly (1), characterized in that: The inner wall of the carton assembly (1) is reinforced with a reinforcing component (3), and the inner wall of the carton assembly (1) is movably fitted with an inner box assembly (2), and the inner box assembly (2) is located inside the reinforcing component (3). The inner box assembly (2) includes an inner box (21) and four outer reinforcing plates (25). The outer sides of the four outer reinforcing plates (25) overlap with the inner wall of the carton assembly (1). An inner reinforcing plate (23) is fixedly connected to the inner side of the four outer reinforcing plates (25). The inner side of the inner reinforcing plate (23) is fixedly connected to the edge of the inner box (21). The upper and lower positions of the inner side of the outer reinforcing plate (25) are fixedly connected to the upper and lower positions of the outer wall of the inner box (21). Several buffer rubber pads (26) are fixedly connected to the bottom of the outer reinforcing plate (25). The reinforcing component (3) includes four T-shaped rubber posts (31), four hexagon socket screws (38), and a mesh (32). The outer walls of the four T-shaped rubber posts (31) are movably connected to the four corners of the inner wall of the carton assembly (1) and the four corners of the inner box (21). The T-shaped rubber posts (31) have an arc-shaped groove and a hexagonal groove in the middle. The hexagonal groove is close to the corner of the carton assembly (1). A pressure plate (37) is inserted into the bottom of the outer wall of the hexagon socket screw (38). An expansion cone seat (36) is threaded to the top of the outer wall of the hexagon socket screw (38).

2. The internal reinforcement mechanism for a packaging carton according to claim 1, characterized in that: A corrugated plate (24) is fixedly connected between the inner side of the outer reinforcing plate (25) and the outer side of the inner reinforcing plate (23), and the corrugated plate (24) is corrugated.

3. The internal reinforcement mechanism for a packaging carton according to claim 1, characterized in that: The inner side of the inner reinforcing plate (23) and the outer wall of the inner box (21) are filled with insulating particles (22).

4. The internal reinforcement mechanism for a packaging carton according to claim 1, characterized in that: A support spring (261) is fixedly installed at the middle of the opposite sides of the two buffer rubber pads (26), and an annular spring (262) is fixedly connected at the edge of the two buffer rubber pads (26). The support spring (261) is located inside the annular spring (262).

5. The internal reinforcement mechanism for a packaging carton according to claim 1, characterized in that: The inner wall of the arc-shaped groove is fixedly connected to an arc-shaped corrugated plate (33), and the inner wall of the hexagonal groove is fixedly connected to a hexagonal corrugated plate (34).

6. The internal reinforcement mechanism for a packaging carton according to claim 1, characterized in that: The bottom of the T-shaped rubber column (31) is fixedly connected to a cone head (35), and the bottom of the outer wall of the cone head (35) is inserted into the top of the expansion cone seat (36).

7. The internal reinforcement mechanism for a packaging carton according to claim 1, characterized in that: The four corners of the mesh (32) are movably connected to the opposite surfaces of the expansion cone seat (36) and the pressure plate (37).