Paper-plastic buffering bottom support

Abstract

The utility model relates to a paper-plastic buffering bottom support which comprises a profiling cavity, side plates are connected to the four edges of the profiling cavity, first recesses are formed in the side plates and form first protrusions on the other faces of the side plates, and the first protrusions abut against the outer wall of the profiling cavity after being bent through the side plates. The two opposite side plates are both connected with a bottom plate, the bottom plate is provided with a second concave part, the second concave part forms a second protrusion on the other face of the bottom plate, the second protrusion is bent through the bottom plate and then abuts against the bottom of the profiling cavity, the pressure resistance in the horizontal direction and the vertical direction is enhanced through the first protrusion and the second protrusion, external force is evenly dispersed, and the service life of the mold is prolonged. The overall strength and the buffering capacity are improved; a paper pulp integral forming process is adopted, buffering is provided through material flexibility, connecting gaps are eliminated, production is simplified, cost is reduced, structural stability is remarkably enhanced, and it is ensured that objects are reliably supported and protected in the transportation and storage process.

Description

Technical Field

[0001] This utility model relates to the field of pulp molding technology, specifically to a paper-plastic cushioning base. Background Technology

[0002] In the packaging industry, paper-plastic base trays are widely used in the transportation and storage packaging of various products due to their advantages such as environmental friendliness and low cost. However, existing paper-plastic cushioning base trays have many shortcomings. Traditional paper-plastic base trays have a relatively simple structure, usually consisting of only a single cavity. The side walls and bottom support structure of the base tray lack sufficient strength, making them prone to deformation or even damage when subjected to external pressure or impact, thus failing to effectively protect the contents. In addition, some base trays adopt an assembled structure, with components connected by adhesives or snaps, resulting in gaps and weak points. This not only affects the overall structural strength but also increases production steps and costs, reducing production efficiency. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a paper-plastic cushioning base.

[0004] The objective of this utility model can be achieved through the following technical solution: a paper-plastic buffer base, including a molded cavity, with side plates connected to all four sides of the molded cavity. A first recess is provided on the side plate, and a first protrusion is formed on the other side of the side plate. The first protrusion abuts against the outer wall of the molded cavity after being bent by the side plate. A bottom plate is connected to the two opposite side plates, with a second recess provided on the bottom plate. A second protrusion is formed on the other side of the bottom plate after being bent by the bottom plate. The second protrusion abuts against the bottom of the molded cavity.

[0005] Preferably, the inner wall of the molded cavity is provided with limiting ribs.

[0006] Preferably, the first protrusion is provided with reinforcing ribs.

[0007] Preferably, the second protrusion has a boss, and the bottom of the cavity has a recess corresponding to the boss.

[0008] Preferably, a stop is provided at the intersection of two adjacent surfaces inside the molding cavity.

[0009] The beneficial effects of this utility model are: the first and second protrusions enhance the horizontal and vertical compressive strength, evenly disperse external forces, and improve the overall strength and buffering capacity; the use of integrated pulp molding process not only utilizes the material's flexibility to provide buffering, but also eliminates connection gaps, simplifies production, reduces costs, significantly enhances structural stability, and ensures reliable support and protection of objects during transportation and storage. Attached Figure Description

[0010] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of a paper-plastic cushioning base according to the present invention.

[0012] Figure 2 This is another structural schematic diagram of a paper-plastic cushioning base according to the present invention.

[0013] Figure 3 This is another structural schematic diagram of a paper-plastic cushioning base according to the present invention.

[0014] The labels in the figure represent: 1. Imitation cavity; 2. Side plate; 3. First recess; 4. First protrusion; 5. Base plate; 6. Second recess; 7. Second protrusion; 8. Limiting rib; 9. Reinforcing rib; 10. Boss; 11. Dent; 12. Stop block. Detailed Implementation

[0015] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0016] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0017] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] See Figures 1 to 3As shown, the structure of this utility model is as follows: a paper-plastic cushioning base, including a molded cavity 1, which serves as the main body for supporting objects. The shape of the molded cavity 1 can be customized according to the shape of the object being supported or protected, thereby achieving precise positioning and wrapping of the object. Side plates 2 are connected to all four sides of the molded cavity 1. The side plates 2 and the molded cavity 1 are integrally formed using a paper-plastic process, ensuring the integrity and stability of the structure. A first recess 3 is provided on the side plate 2, and a first protrusion 4 is formed on the other side of the side plate 2. After the side plate 2 is bent, the first protrusion 4 abuts against the outer wall of the molded cavity 1. By bending the side plate 2, the first protrusion 4 can tightly fit against the outer wall of the molded cavity 1. The side plate 2, after being bent, can support the cavity 1 from all sides. When the base is subjected to external pressure, the first protrusion 4 on the side plate 2 can evenly distribute the pressure to the outer wall of the cavity 1, enhancing the cavity 1's resistance to pressure in the horizontal direction. At the same time, the contact between the first protrusion 4 and the outer wall of the cavity 1 can also act as a buffer, reducing the impact of external impact on the objects inside the cavity 1. The two opposite side plates 2 are connected to the base plate 5. The base plate 5 is provided with a second recess 6. The second recess 6 forms a second protrusion 7 on the other side of the base plate 5. After the base plate 5 is bent, the second protrusion 7 abuts against the bottom of the cavity 1. The base plate 5 is also integrally formed with the side plate 2 using paper-plastic technology. The second recess 6 on the base plate 5 forms a second protrusion 7 on the other side. After the base plate 5 is bent, the second protrusion 7 abuts against the bottom of the molded cavity 1, providing stable support for the bottom of the molded cavity 1. When an object is placed, the second protrusion 7 supports the bottom of the molded cavity 1. When subjected to vertical impact force, the second protrusion 7 can effectively absorb impact energy and protect the object inside the molded cavity 1. The molded cavity 1, side plate 2, and base plate 5 are all integrally formed from pulp through a paper-plastic process. The pulp material itself has a certain degree of flexibility and cushioning performance, which can provide good cushioning protection for objects while ensuring structural strength. The integral molding process eliminates the connection gaps and weak points that may exist in traditional assembly structures, which not only improves the production efficiency of the base and reduces production costs, but also significantly enhances the stability and reliability of the overall structure of the base, enabling it to better play its role in supporting and cushioning objects in transportation, storage, and other scenarios.

[0019] like Figure 1 , Figure 3As shown, the inner wall of the molding cavity 1 is provided with limiting ribs 8. Specifically, the limiting ribs 8 are integrally formed with the molding cavity 1 through a paper-plastic process and are distributed along the inner wall of the molding cavity 1. When the supported or protected object is placed inside the molding cavity 1, the limiting ribs 8 can contact the surface of the object and use their own elastic deformation to prevent the object from shifting inside the molding cavity 1. At the same time, as a protruding structure of the inner wall of the molding cavity 1, the limiting ribs 8 increase the rigidity of the inner wall, playing a role similar to reinforcing ribs 9. This can effectively improve the ability of the side wall of the molding cavity 1 to resist external pressure, avoid deformation of the molding cavity 1 due to external forces, and thus better protect the internal object.

[0020] like Figure 2 As shown, the first protrusion 4 is provided with a reinforcing rib 9. Specifically, after being bent by the side plate 2, the first protrusion 4 abuts against the outer wall of the molded cavity 1, providing support and cushioning. The reinforcing rib 9 further enhances the structural strength of the first protrusion 4. The reinforcing rib 9 and the first protrusion 4 are integrally formed using a paper-plastic process, which can disperse the stress generated by the first protrusion 4 when subjected to external pressure, preventing the first protrusion 4 from being damaged or deformed due to excessive force. This not only ensures the stability of the side plate 2 in supporting the outer wall of the molded cavity 1, but also extends the overall service life of the base, continuously providing reliable support and protection for the molded cavity 1 during transportation and use.

[0021] like Figure 2 As shown, the second protrusion 7 has a boss 10, and the bottom of the molded cavity 1 has a recess 11 corresponding to the boss 10. Specifically, the second protrusion 7 is bent by the base plate 5 and abuts against the bottom of the molded cavity 1. The matching structure of the boss 10 and the recess 11 makes the connection between the base plate 5 and the bottom of the molded cavity 1 more precise and stable. When the base supports bear the weight of an object or external impact force, the boss 10 is embedded in the recess 11, which restricts the displacement of the base plate 5 relative to the bottom of the molded cavity 1.

[0022] like Figure 1 , Figure 3 As shown, a stop block 12 is provided at the intersection of two adjacent surfaces inside the molding cavity 1. Specifically, these stop blocks 12 are integrally formed with the molding cavity 1 using a paper-plastic process and are distributed in a raised shape at the corners of the molding cavity 1. When stacked, the bottom of the molding cavity 1 of the upper base can be precisely engaged with the stop block 12 of the lower base, forming a stable positioning structure. When it is necessary to separate the two stacked bases, the presence of the stop block 12 avoids the situation where the two bases are difficult to separate due to tight fit, thus improving the convenience of handling the bases in the stacked state.

[0023] In practical use, firstly, the shape of the molded cavity 1 is customized according to the shape characteristics of the object being supported or protected. The object is then placed stably inside the molded cavity 1. The unique contour of the molded cavity 1 can closely fit the object, achieving precise positioning and wrapping, effectively preventing the object from shaking or shifting during transportation or storage. When the base is subjected to external pressure, such as being squeezed during stacking or handling, the first protrusion 4 of the side plate 2 can evenly distribute the horizontal pressure to the outer wall of the molded cavity 1, enhancing the horizontal pressure resistance of the molded cavity 1 and preventing deformation of the molded cavity 1 due to lateral pressure. At the same time, the second protrusion 7 supports the bottom of the molded cavity 1. When subjected to vertical impact force, the second protrusion 7 can effectively absorb the impact energy, protecting the object inside the molded cavity 1. In addition, since the entire base is integrally molded from pulp through a paper-plastic process, the flexibility of the pulp material allows the base to absorb energy through its own elastic deformation when subjected to impact force, providing a buffering protection for the internal object. The one-piece molding process eliminates the connection gaps and weak points of traditional assembly structures, enabling the base to maintain good structural stability and reliability during repeated use, handling and external force bearing, and ensuring that it can continuously and effectively support and cushion objects in transportation, storage and other scenarios.

[0024] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A paper-plastic buffer bottom tray, characterized in that: It includes a cavity replica (1), on all four sides of the cavity replica (1) there are side plates (2) connected, on the side plates (2) there are first depressions (3), on the other side of the side plates (2) the first depressions (3) form first protrusions (4), after the first protrusions (4) are bent by the side plates (2), they are in contact with the outer wall of the cavity replica (1); on two opposite side plates (2) there are bottom plates (5) connected, on the bottom plates (5) there are second depressions (6), on the other side of the bottom plates (5) the second depressions (6) form second protrusions (7), after the second protrusions (7) are bent by the bottom plates (5), they are in contact with the bottom of the cavity replica (1).

2. The base according to claim 1, wherein: There are limiting rib protrusions (8) provided on the inner wall of the cavity replica (1).

3. The base according to claim 1, characterized in that: There are reinforcing ribs (9) provided on the first protrusions (4).

4. The base according to claim 1, characterized in that: There are bosses (10) provided on the second protrusions (7), and there are corresponding pits (11) provided at the bottom of the cavity replica (1) for the bosses (10).

5. The base according to claim 1, characterized in that: There are stoppers (12) provided at the intersection positions of adjacent two faces inside the cavity replica (1).

Images