A reinforced paperboard box

Abstract

The utility model discloses a kind of compression-resistant paperboard boxes with reinforcing bars, relate to paperboard box technical field, including body, the body is by a plurality of number according to predetermined connection rule and make side edge interconnect paperboard body, the paperboard body is according to structure and outer side and inner core support member;The inner core support member is according to structure and is divided into: the bending member of the adjacent paperboard body bending connection place arrangement;Honeycomb support member is arranged in the paperboard body distribution. The utility model is introduced by reinforcing bar structure, the fatigue resistance and repeated compression resistance of paperboard box are enhanced, especially applicable to the scene needing to be recycled or long-term storage and transportation, prolong the service life of packaging box, reduce comprehensive use cost.

Description

Technical Field

[0001] This utility model relates to cardboard box technology, specifically a pressure-resistant cardboard box with reinforcing ribs. Background Technology

[0002] Cardboard boxes, as a widely used packaging container, primarily function to provide stable storage space and sufficient physical protection for contents during warehousing, transportation, and stacking. Among these factors, compressive strength is a key indicator of cardboard box performance, directly affecting the reliability of the packaging and its ability to protect the contents.

[0003] Currently, most mainstream compression-resistant cardboard boxes on the market are made of corrugated cardboard, relying on its inherent corrugated core structure to provide a certain degree of stiffness and cushioning performance. To further enhance strength, common reinforcement methods mainly include:

[0004] Increasing material usage: For example, using higher grammage face paper, thicker corrugated core paper, or increasing the number of layers in the cardboard (such as double-walled or triple-walled). While this method can simply and directly improve strength, it will significantly increase raw material costs, packaging weight, and warehousing and logistics volume, which goes against the trend of economic and environmental protection.

[0005] External reinforcement: such as adding strapping, corner protectors, or wooden frames to the outside of the box. This method not only increases additional operational steps and material costs, but also affects the packaging appearance and standardization, making it difficult to achieve efficient automated operation.

[0006] Adding separate auxiliary materials inside: such as placing foam, plastic supports, or paper partitions inside the box. These auxiliary materials are usually separate from the box body, increasing assembly complexity and potentially reducing protective effectiveness due to displacement. Furthermore, these materials are often difficult to recycle along with the cardboard box, leading to environmental problems.

[0007] Optimized structural design: Self-locking reinforcement is achieved through complex folding and interlocking structures. This type of design requires high processing precision, which may reduce production efficiency, and its reinforcement effect is mostly concentrated in specific areas, so the overall uniform pressure-bearing capacity is still limited.

[0008] The shortcomings of existing technologies are mainly concentrated in: low integration of reinforcement methods with the body of the enclosure, low material efficiency, difficulty in balancing overall strength and local reinforcement, or being detrimental to environmental protection and cost control. Utility Model Content

[0009] The purpose of this invention is to provide a pressure-resistant cardboard box with reinforcing ribs to overcome the aforementioned shortcomings in the prior art.

[0010] To achieve the above objectives, this utility model provides the following technical solution: a pressure-resistant cardboard box with reinforcing ribs, comprising a body, wherein the body is composed of a plurality of cardboard bodies connected to each other on the sides according to a predetermined connection rule, wherein the cardboard bodies are, according to their structure, an inner surface, an outer surface, and an inner core support member;

[0011] The inner core support component is classified according to its structure as follows:

[0012] A bending element located at the bending connection of adjacent cardboard bodies;

[0013] The honeycomb support is located on the cardboard body.

[0014] Preferably, the bending point of the bent component is connected to the inner surface and the outer surface, so that two adjacent plates distributed on the bent component form a triangle.

[0015] Preferably, the honeycomb support includes a plurality of equidistantly distributed longitudinal plates and honeycomb fillers distributed between two adjacent longitudinal plates;

[0016] One of the longitudinal plates is a plate on the edge of the bent part.

[0017] Preferably, the honeycomb support members are distributed on both sides of the cardboard body.

[0018] Preferably, the number of longitudinal plates on one side is not less than ten.

[0019] Preferably, the honeycomb support includes support portions distributed in an X-shaped structure, with the two ends of the support portions on the same side respectively connected to the outermost longitudinal plate on the inner core support.

[0020] Preferably, there are several support parts, and the ends of two adjacent support parts are connected as one unit.

[0021] Preferably, the support portion is a hollow structure.

[0022] Preferably, the two corners of the support section are rounded, and the side between the two rounded corners is integrated with the outer side.

[0023] In the above technical solution, the pressure-resistant cardboard box with reinforcing ribs provided by this utility model has the following beneficial effects:

[0024] 1. By incorporating both bent and honeycomb supports within the inner core support structure, a dual-reinforcement structure is created. The bent components provide localized reinforcement at critical stress points along the edges of the box, while the honeycomb supports offer evenly distributed three-dimensional support across all panels. The combined effect of these two components significantly enhances the carton's compressive strength and load-bearing stability during stacking and transportation.

[0025] 2. Bending components are specifically placed at the bending joints of adjacent cardboard sections (i.e., the edges of the box), effectively reinforcing the weakest points of the box that are most prone to deformation or damage, ensuring the box edges are crisp, and preventing the box from bulging or collapsing. Honeycomb support components, as internal filling support, improve the planar bending stiffness of the board itself, making the stress on all sides of the box more even and the overall structure more stable.

[0026] 3. The honeycomb structure of the honeycomb support has good elasticity and energy absorption characteristics. When subjected to impact, it can disperse stress through deformation, providing excellent cushioning protection for the contents of the box and reducing the risk of damage to the contents due to vibration and compression. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0028] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0029] Figure 2 This is a structural schematic diagram of the bent component and honeycomb support component provided in the embodiments of this utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the longitudinal plate and the honeycomb filler provided in an embodiment of the present utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the bending component provided in an embodiment of the present utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Cardboard body; 11. Inner surface; 12. Outer surface; 13. Inner core support; 2. Bending component; 21. Triangle; 3. Honeycomb support; 31. Longitudinal plate; 32. Honeycomb filler; 33. Support part. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0035] This utility model embodiment provides a technical solution:

[0036] Example 1

[0037] like Figures 1 to 3As shown, this embodiment provides a basic structure for a compression-resistant cardboard box with reinforcing ribs. The cardboard box includes a body formed by connecting several cardboard bodies 1 together by means of a predetermined connection rule (such as gluing, sewing, or inserting) along their sides.

[0038] Each cardboard body 1 adopts a multi-layer composite structure, including, from the outside to the inside, an outer surface 12, an inner core support 13, and an inner surface 11. The inner core support 13 is the core reinforcing component of this invention, and it is divided into two categories according to its position and function in the box:

[0039] The first type is the bending component 2. It is specifically arranged at the bending connection between two adjacent cardboard bodies 1, that is, on each edge of the box. When the box is formed, the bending component 2 bends together with the cardboard body, and its internal structure is maintained at the bending point, thereby forming a continuous rigid reinforcing rib at the weakest and most stress-concentrated edge of the box, effectively preventing edge deformation and cracking.

[0040] The second type is the honeycomb support 3. It is distributed on the surface area of ​​the cardboard body 1, located between the bending parts 2. The honeycomb support 3 is composed of a large number of regular honeycomb cavities. This structure provides uniform and dense three-dimensional support points for the board surface, which significantly improves the planar compressive and bending stiffness of the cardboard body 1 itself, and prevents the board surface from denting inward or bulging outward when under pressure.

[0041] The working principle of this embodiment is as follows: When the cardboard box is subjected to the pressure of top stacking, the pressure is transmitted to the inner core support 13 through the outer surface 12. The bending member 2 located at the edge first resists and disperses the concentrated stress along the vertical direction of the box, maintaining the box's squareness; at the same time, the honeycomb support 3 in the board area, through the cooperative bearing of its honeycomb cell walls, quickly disperses the local pressure to the entire board surface, forming a mechanical complement to the supporting effect of the bending member 2. Together, they constitute a dual reinforcement system combining "skeleton (bending member) and muscle (honeycomb support)," achieving a leap in overall compressive strength and stability without significantly increasing wall thickness and weight. In addition, the honeycomb structure itself has good elasticity, and can absorb energy through controlled deformation when subjected to accidental impact, providing auxiliary cushioning.

[0042] Example 2

[0043] like Figure 3 and Figure 4 As shown, this embodiment further defines the structure and connection relationship of the bending member 2 and the honeycomb support member 3 based on embodiment one.

[0044] The cross-section of the bent component 2 is constructed with a geometry that has higher structural efficiency. Specifically, at its bending point, the bent component 2 is connected to the inner surface 11 and the outer surface 12, so that two adjacent plates distributed on the bent component 2 form a stable triangle 21. This triangular structure greatly enhances the longitudinal bending and torsional stiffness of the bent component at its edges, making the reinforcing ribs themselves less prone to instability, thereby more reliably locking the corners of the box and maintaining the shape integrity of the box under long-term pressure.

[0045] Furthermore, the honeycomb support 3 is specifically configured as follows: it includes several parallel and equidistantly arranged longitudinal plates 31, and honeycomb fillers 32 filling the gaps between adjacent longitudinal plates 31. These longitudinal plates 31 are perpendicular to the panel surface, providing lateral support and fixation for the honeycomb fillers 32. A key design feature is that one of the plates at the edge of the bent member 2 (i.e., one side forming the triangle 21) directly serves as a longitudinal plate 31 of the honeycomb support 3. This allows for seamless structural integration and force flow between the bent member 2 and the honeycomb support 3, making the mechanical transmission from the edge to the panel surface more direct and efficient, and eliminating weak points at the connection points in traditional reinforcement methods.

[0046] As a preferred option, the honeycomb support members 3 can be symmetrically arranged on both sides of the cardboard body 1 (i.e., a double-layer honeycomb structure) to provide more balanced bidirectional support. At the same time, to ensure support density, the number of longitudinal plates 31 on one side should not be less than ten to form a sufficient number of honeycomb units and optimize the uniformity of support.

[0047] Example 3

[0048] like Figures 3 to 4 As shown, this embodiment introduces a higher-order reinforcement structure based on embodiment two to meet more stringent pressure and impact resistance requirements.

[0049] In this embodiment, the honeycomb support member 3 is provided with support portions 33 arranged in an X-shape. The two ends on the same side of each X-shaped support portion 33 are fixedly connected to the two outermost longitudinal plates 31 on the inner core support member 13, respectively. Multiple such X-shaped support portions 33 can be arranged along the extending direction of the longitudinal plates 31.

[0050] Preferably, the endpoints of two adjacent support parts 33 can be connected as one unit, thereby forming a continuous, interlaced three-dimensional mesh reinforcement system within the entire honeycomb support 3. This mesh system upgrades the honeycomb structure, which originally mainly bears vertical pressure, into a space truss structure that can effectively resist both shear and torsional forces, greatly enhancing the integrity and stability of the panel under complex stress conditions.

[0051] To further achieve lightweight design while retaining cushioning performance, the support 33 can be designed as a hollow structure. This saves material, and its cavity provides additional energy absorption space during deformation.

[0052] Furthermore, the cross-sectional shape of the support 33 is optimized: its two corners are rounded. This eliminates stress concentration points and improves the structural durability of the support itself; on the other hand, through these two rounded corners, the support 33 can be more smoothly and firmly connected to the outer surface 12, ensuring effective integration and joint operation between the reinforcing structure and the outer skin.

[0053] This embodiment introduces an X-shaped support 33 and its optimized design, which significantly enhances the cardboard box's dynamic impact resistance and structural toughness while maintaining excellent static compression resistance. It is particularly suitable for packaging heavy goods, precision instruments, or packaging scenarios requiring long-distance transportation.

[0054] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A reinforced, compression-resistant cardboard box, comprising a body, said body being composed of a plurality of cardboard bodies (1) connected to each other sideways according to a predetermined connection pattern, characterized in that, The cardboard body (1) is structured as an inner surface (11), an outer surface (12), and an inner core support (13). The inner core support (13) is classified according to its structure as follows: A bending member (2) is arranged at the bending connection of adjacent cardboard bodies (1); The honeycomb support (3) is located on the cardboard body (1); The honeycomb support (3) includes a plurality of equally spaced longitudinal plates (31) and honeycomb fillers (32) distributed between two adjacent longitudinal plates (31). One of the longitudinal plates (31) is a plate on the edge of the bent piece (2); The honeycomb support (3) includes support parts (33) distributed in an X-shaped structure. The two ends of the support parts (33) on the same side are respectively connected to the outermost longitudinal plate (31) on the inner core support (13). The number of the support parts (33) is several, and the ends of two adjacent support parts (33) are connected as one unit.

2. A pressure-resistant cardboard box with reinforcing ribs according to claim 1, characterized in that, The bending point of the bending member (2) is connected to the inner surface (11) and the outer surface (12) so that two adjacent plates distributed on the bending member (2) form a triangle (21).

3. A pressure-resistant cardboard box with reinforcing ribs according to claim 1, characterized in that, The honeycomb support (3) is distributed on both sides of the cardboard body (1).

4. A pressure-resistant cardboard box with reinforcing ribs according to claim 1, characterized in that, The number of longitudinal plates (31) on one side is not less than ten.

5. A pressure-resistant cardboard box with reinforcing ribs according to claim 1, characterized in that, The support part (33) is a hollow structure.

6. A pressure-resistant cardboard box with reinforcing ribs according to claim 1, characterized in that, The two corners of the cross section of the support part (33) are rounded, and the side between the two rounded corners is connected to the outer side surface (12) as a whole.

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