Honeycomb paper-plastic tray

Abstract

The utility model relates to a honeycomb paper-plastic tray which comprises a bearing bottom and an edge covering side portion which are integrally formed, slotted holes distributed in an array mode are formed in the bearing bottom, the slotted holes form a grid supporting face used for making contact with heavy objects on the upper surface of the bearing bottom, the grid supporting face comprises a high-position supporting face and a low-position supporting face, and the high-position supporting face and the low-position supporting face are different in height. The high-position supporting face is used for supporting a concave area of the bottom face of a weight, and the low-position supporting face is used for supporting a convex area of the bottom face of the weight. According to the paper-plastic tray, the slotted holes distributed in the array mode are formed in the bearing bottom, the grid supporting face is formed on the upper surface of the bearing bottom, the bearing bottom makes full contact with the bottom face of a heavy object through the grid supporting face, the contact area is increased, and the pressure intensity of all positions on the bearing bottom is effectively reduced; the acting force of the heavy object on the bearing bottom is shared to the whole grid supporting face and is not a plurality of independent force bearing points any more, so that the bearing bottom is not prone to deformation, and the bearing structural strength and the bearing capacity of the paper-plastic tray are kept for a long time.

Description

Technical Field

[0001] The utility model relates to the field of packaging, and specifically, to a honeycomb paper-plastic tray. Background Art

[0002] Paper-plastic trays are an environmentally friendly packaging material. Due to their degradable and recyclable characteristics, they are gradually becoming alternatives to traditional plastic and wooden trays. Paper-plastic trays are mainly made of plant fibers such as waste paper and straw, and the original pulp fibers are formed into the shape of a tray through methods such as vacuum thermoforming and hot pressing. The market demand for paper-plastic trays continues to expand, especially in the fields of e-commerce express packaging, food preservation, medical devices, etc. Paper-plastic trays are favored by more and more enterprises due to their environmental protection and protection performance advantages.

[0003] Existing paper-plastic trays are designed with multiple reinforcing ribs and internal support structures. These structural elements help disperse the load and prevent deformation or cracking under heavy pressure, and can significantly improve the load-bearing capacity of paper-plastic trays. For example, a paper tray disclosed in the utility model patent publication number CN207698262U is integrally formed and has only a single-layer structure, including a number of bumps arranged in a matrix. Grooves for accommodating products are formed between the rows and columns of the bumps. It can be seen that the middle area of the bottom surface of this paper tray mainly relies on the bumps arranged in a matrix to achieve the structural strength of the paper tray. Independent force-bearing points are formed on the bottom surface of the paper tray. Under long-term load, a single bump is likely to deform or be damaged. Once this situation occurs, the structural strength of the bottom surface of the paper tray becomes poor.

[0004] Therefore, how to improve the existing integrally formed single-layer paper tray to enhance its structural strength and load-bearing capacity has become an urgent technical problem in the industry. Summary of the Utility Model

[0005] In order to solve the problem of insufficient load-bearing strength of the existing integrally formed single-layer paper-plastic tray, the utility model provides a honeycomb paper-plastic tray.

[0006] The technical solution of the utility model is as follows:

[0007] A honeycomb paper-plastic tray includes an integrally formed load-bearing bottom and a side edge wrapping part. It is characterized in that the load-bearing bottom is provided with slot holes distributed in an array, and the slot holes form a grid support surface for contacting heavy objects on the upper surface of the load-bearing bottom. The grid support surface includes a high-level support surface and a low-level support surface with a height difference.

[0008] According to the utility model of the above solution, it is characterized in that the high-level support surface is located in the middle area of the load-bearing bottom, and the low-level support surface is located around the load-bearing bottom.

[0009] By adopting the above technical solution, when a heavy object is placed on the paper-plastic tray, the concave area in the middle of the bottom surface of the heavy object is in full contact with the high-position supporting surface, and the protruding areas around the bottom surface of the heavy object are in full contact with the low-position supporting surface. The supporting surfaces at all parts of the load-bearing bottom of the paper-plastic tray are interconnected, and the contact surface with the heavy object is large, which can more effectively reduce the pressure, the stress points are stable, and the items are placed very firmly, which is beneficial to the protection of the items during transportation.

[0010] The utility model according to the above solution is characterized in that the slot holes in the load-bearing bottom are polygonal holes.

[0011] Preferably, the slot holes are hexagonal holes, triangular holes, quadrilateral holes, pentagonal holes or octagonal holes.

[0012] The utility model according to the above solution is characterized in that the slot holes in the load-bearing bottom are circular holes.

[0013] The utility model according to the above solution is characterized in that several reinforcing seats are provided on the inner side of the side edge of the edge wrapping. The upper end of the reinforcing seat is narrow and the lower end is wide, and the inner side surface of the reinforcing seat is a concave arc surface. A reinforcing block connecting the side edge of the edge wrapping is provided on the outside of the reinforcing seat.

[0014] By adopting the above technical solution, the reinforcing seat increases the thickness and strength of the side edge of the edge wrapping. When a heavy object is placed on the paper-plastic tray, the side edge of the edge wrapping resists the bottom edge of the heavy object through the reinforcing seat, which can prevent the side edge of the edge wrapping from bending and deforming, and enables the side edge of the edge wrapping to better wrap the bottom of the heavy object, and the placed heavy object is more stable.

[0015] Further, reinforcing ribs for strengthening the structural strength of the side edge of the edge wrapping are provided between adjacent two reinforcing seats.

[0016] Furthermore, the reinforcing ribs include longitudinal ribs and transverse ribs. The longitudinal ribs are provided on the side edge of the edge wrapping, and the transverse ribs are provided on the load-bearing bottom.

[0017] Furthermore, the surface of the reinforcing ribs is a convex arc surface.

[0018] The utility model according to the above solution is characterized in that a side edge reinforcing part that can be folded along the upper edge of the side edge of the edge wrapping is provided on the outside of at least one side of the side edge of the edge wrapping. A plurality of connecting grooves are provided on the outer side surface of the side edge of the edge wrapping, and the side edge reinforcing part is provided with plug-in blocks adapted to the connecting grooves. When the side edge reinforcing part is turned to be parallel to the side edge of the edge wrapping, the plug-in blocks are inserted into the connecting grooves so that the side edge reinforcing part is fixed on the outside of the side edge of the edge wrapping.

[0019] Further, the plug-in blocks are provided with two plug-in feet with different heights, and the plug-in foot close to the rotating side of the side edge reinforcing part is lower.

[0020] By adopting the above technical solution, when the side reinforcement part rotates and moves closer to the edging side part, the plug-in pin on the lower side is first inserted into the outer side surface of the edging side part, and the plug-in pin on the higher side is inserted subsequently, so that the side reinforcement part can be smoothly and easily plugged into the edging side part.

[0021] Furthermore, a plurality of structural reinforcement protrusions are provided on the other side of the side reinforcement portion opposite to the plug-in block, and the plurality of structural reinforcement protrusions are arranged at intervals from the plurality of plug-in blocks.

[0022] The utility model according to the above scheme has the following beneficial effects:

[0023] The paper-plastic pallet of the utility model forms a grid support surface on the upper surface of the load-bearing bottom by arranging slots distributed in an array on the load-bearing bottom. The load-bearing bottom is connected to each other at various places and fully contacts the bottom surface of the heavy object. Compared with the existing paper-plastic pallet, the contact area is larger, and the force of the heavy object on the load-bearing bottom is distributed to the entire grid support surface, which is no longer a number of independent force-bearing points, effectively reducing the pressure at various places on the load-bearing bottom, making the load-bearing bottom not easy to deform, and maintaining the supporting structure strength and load-bearing capacity of the paper-plastic pallet for a long time;

[0024] Furthermore, the edging side is provided with a foldable side reinforcement portion. When the side reinforcement portion is buckled into the edging side, it becomes one with the edging side, thereby reinforcing the structural strength of the edging side of the paper-plastic pallet, improving the overall torsional resistance of the paper-plastic pallet, and ensuring stability during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the side reinforcement part in the second embodiment being opened;

[0027] Figure 3 This is a schematic diagram of the closure of the side reinforcement portion in the second embodiment.

[0028] In the figure,

[0029] 1. Load-bearing bottom; 11. Slots; 12. Grid support surface; 121. High support surface; 122. Low support surface;

[0030] 2. Edge side; 21. Connection groove;

[0031] 3. reinforcement seat; 31. concave arc surface; 32. reinforcement block;

[0032] 4. Reinforcement ribs;

[0033] 5. Side reinforcement portion; 51. Plug-in block; 52. Structural reinforcement protrusion. DETAILED DESCRIPTION

[0034] In order to better understand the purpose, technical solution and technical effect of the present utility model, the following further explains and illustrates the present utility model in conjunction with the drawings and embodiments. It should be noted that: similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, it is declared that the embodiments described below are only used to explain the present utility model and are not used to limit the present utility model.

[0035] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0036] The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the application product is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship in which the application product is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. It should be noted that the meaning of "a number of" is two or more, unless otherwise specifically defined.

[0037] Embodiment 1

[0038] As Figure 1 shown, a honeycomb paper-plastic tray includes an integrally formed load-bearing bottom and a wrapped side. The load-bearing bottom is provided with slot holes distributed in an array, and the slot holes form a grid support surface for contacting heavy objects on the upper surface of the load-bearing bottom. The grid support surface includes a high-level support surface and a low-level support surface with a height difference. The high-level support surface is used to support the concave area of the bottom surface of the heavy object, and the low-level support surface is used to support the convex area of the bottom surface of the heavy object. In this way, the paper-plastic tray is in full contact with the bottom surface of the heavy object through the grid support surface of the load-bearing bottom. Compared with the existing paper-plastic trays, the contact area is larger. The acting forces of the heavy object on the load-bearing bottom are no longer several independent force-bearing points, but are spread over the entire grid support surface. The load-bearing bottom of the paper-plastic tray is not easily deformed, and the structural strength and load-bearing capacity of the paper-plastic tray can be maintained for a long time.

[0039] In this embodiment, the high-level support surface is located in the middle area of the load-bearing bottom, and the low-level support surface is located around the load-bearing bottom, which is suitable for heavy objects with a concave area in the middle of the bottom surface. After the paper-plastic tray is placed with heavy objects, the force-bearing points at each place are stable, and the items are placed very firmly, which is beneficial to the protection of the items during transportation.

[0040] The slot holes at the load-bearing bottom are hexagonal holes distributed in an array. Support grids that are interconnected are formed between the slot holes. The width of the support grid is equal to half of the diagonal length of the hexagonal hole, ensuring that the support grid has a relatively large width. The slot holes of this shape can save the material used for the load-bearing bottom while ensuring sufficient bearing capacity. In other alternative embodiments, the slot holes distributed in an array can also be other polygonal holes, for example, triangular holes, quadrilateral holes, pentagonal holes, octagonal holes, etc.; in addition to polygonal holes, the slot holes can also be circular holes, so that the grid support surface has a higher load-bearing capacity.

[0041] In this embodiment, several reinforcing seats are provided on the inner side of the side edge of the edge wrapping. The side edge of the edge wrapping abuts against the bottom edge of the heavy object through the reinforcing seats. One function is to increase the thickness of the side edge of the edge wrapping and prevent the side edge of the edge wrapping from bending and deforming; another function is to better wrap the bottom of the heavy object and make the placement more stable. The upper end of the reinforcing seat is narrow and the lower end is wide, and the inner side surface of the reinforcing seat is a concave arc surface, so that the heavy object can be easily placed into the paper-plastic tray from top to bottom. After being placed, it is clamped with the reinforcing seat and placed firmly. Moreover, the concave arc surface can also prevent scratches on the bottom of the heavy object. A reinforcing block connecting the side edge of the edge wrapping is provided on the outside of the reinforcing seat. The reinforcing block improves the structural strength of the relatively narrow upper end part of the reinforcing seat. If the heavy object is placed obliquely accidentally and presses the top end of the reinforcing seat, this part is not easily deformed.

[0042] Reinforcing ribs for strengthening the structural strength of the side edge of the edge wrapping are provided between two adjacent reinforcing seats. The function of the reinforcing ribs is to further increase the structural strength at the connection between the load-bearing bottom and the side edge of the edge wrapping and prevent the side edge of the edge wrapping from being distorted and deformed at the gap between two adjacent reinforcing seats. The reinforcing ribs include longitudinal ribs and transverse ribs. The longitudinal ribs are provided on the side edge of the edge wrapping, and the transverse ribs are provided on the load-bearing bottom, and the longitudinal ribs and the transverse ribs are connected. In a preferred embodiment, the surface of the reinforcing ribs is a convex arc surface.

[0043] Embodiment Two

[0044] As Figure 2 and Figure 3As shown in the figure, a honeycomb paper-plastic tray, similar to Embodiment 1, includes an integrally formed load-bearing bottom and a side edge wrapping part. The load-bearing bottom is provided with slot holes distributed in an array, and the slot holes form a grid support surface for contacting heavy objects on the upper surface of the load-bearing bottom. The grid support surface includes a high-level support surface and a low-level support surface with a height difference. Several reinforcing seats are provided on the inner side of the side edge wrapping part. The side edge wrapping part abuts against the bottom edge of the heavy object through the reinforcing seats. The heavy object can be easily placed into the paper-plastic tray from top to bottom and is clamped with the reinforcing seats after being placed. Reinforcing ribs are provided between two adjacent reinforcing seats to strengthen the structural strength of the side edge wrapping part. The function of the reinforcing ribs is to further increase the structural strength at the connection between the load-bearing bottom and the side edge wrapping part and prevent the side edge wrapping part from being distorted and deformed at the gap between two adjacent reinforcing seats.

[0045] The difference from Embodiment 1 is that: on at least one side of the honeycomb paper-plastic tray in this embodiment, a side edge reinforcing part is provided on the outer side of the side edge wrapping part. The side edge reinforcing part is rotatably connected to the upper edge of the side edge wrapping part, and the side edge reinforcing part can be folded along the upper edge of the side edge wrapping part. Several connecting grooves are provided on the outer side surface of the side edge wrapping part, and several inserting blocks are provided on the side edge reinforcing part. The shape of the inserting blocks is adapted to and fits with the connecting grooves, so the inserting blocks can be inserted into the connecting grooves. When in use, when the side edge reinforcing part is flipped to be parallel to the side edge wrapping part, the inserting blocks are inserted into the connecting grooves, strengthening the structural strength of the side edge wrapping part at the connecting grooves. The side edge reinforcing part is connected to the outer side of the side edge wrapping part and integrated with the side edge wrapping part, improving the overall anti-torsion performance of the paper-plastic tray and ensuring stability during transportation.

[0046] In this embodiment, the inserting block is provided with two inserting feet with different heights, and the inserting foot closer to the rotating side of the side edge reinforcing part is lower. When the side edge reinforcing part rotates and approaches the side edge wrapping part, the lower inserting foot is inserted into the outer side surface of the side edge wrapping part first, and the higher inserting foot is inserted later. It can be seen that the design of this inserting block is beneficial for the side edge reinforcing part to be easily inserted into the side edge wrapping part.

[0047] Several structural strengthening bumps are provided on the other side of the side edge reinforcing part relative to the inserting block. The structural strengthening bumps are used to strengthen the structure of the side edge reinforcing part, making the side edge reinforcing part not easily bend and deform, and not affecting the disassembly and assembly use between the side edge reinforcing part and the side edge wrapping part. Structural strengthening bumps and inserting blocks are respectively provided on the front and back sides of the side edge reinforcing part, and several structural strengthening bumps and several inserting blocks are arranged at intervals, that is, along the length direction of the side edge reinforcing part, structural strengthening bumps, inserting blocks, structural strengthening bumps, inserting blocks are provided in sequence, and so on.

[0048] In summary, the support grid structure formed by the slot holes in the load-bearing bottom of the paper-plastic tray ensures sufficient bearing capacity of the load-bearing bottom; the high-position support surface and the low-position support surface enable the tray to better fit the bottom of the heavy object and provide a more uniform load distribution; the design of the reinforcement seat not only increases the thickness and strength of the side edge of the package, preventing the side edge of the package from bending and deforming, but also the concave arc surface inside the reinforcement seat reduces the possible scratches on the bottom of the heavy object; the reinforcement ribs strengthen the overall torsional resistance of the paper-plastic tray and ensure stability during transportation.

[0049] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0050] The above embodiments only represent several implementation modes of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A honeycomb paper-plastic pallet, comprising an integrally formed load-bearing bottom and an edge-wrapped side, characterized in that: The load-bearing bottom is provided with slots distributed in an array, and the slots form a grid support surface for contacting a heavy object on the upper surface of the load-bearing bottom, and the grid support surface includes a high-position support surface and a low-position support surface with a height difference.

2. A honeycomb paper-plastic pallet according to claim 1, characterized in that: The high-position supporting surface is located in the middle area of ​​the load-bearing bottom, and the low-position supporting surface is located around the load-bearing bottom.

3. The honeycomb paper-plastic pallet according to claim 1, characterized in that: The slotted hole of the load-bearing bottom is a polygonal hole.

4. The honeycomb paper-plastic pallet according to claim 3, characterized in that: The slotted holes are hexagonal holes, triangular holes, quadrilateral holes, pentagonal holes or octagonal holes.

5. The honeycomb paper-plastic pallet according to claim 1, characterized in that: The slotted hole of the load-bearing bottom is a circular hole.

6. The honeycomb paper-plastic pallet according to claim 1, characterized in that: A plurality of reinforcement seats are arranged on the inner side of the edge-wrapped side portion, the inner side surface of the reinforcement seat is a concave arc surface, and a reinforcement block connected to the edge-wrapped side portion is arranged on the outer side of the reinforcement seat.

7. The honeycomb paper-plastic pallet according to claim 6, characterized in that: Reinforcement ribs for strengthening the structural strength of the side parts of the edging are arranged between two adjacent reinforcement seats.

8. The honeycomb paper-plastic pallet according to claim 1, characterized in that: The outer side of at least one side of the edging side portion is provided with a side reinforcement portion that can be folded along the upper edge of the edging side portion, the outer side surface of the edging side portion is provided with a plurality of connecting grooves, and the side reinforcement portion is provided with a plug-in block adapted to the connecting groove, and when the side reinforcement portion is flipped to be parallel to the edging side portion, the plug-in block is inserted into the connecting groove to fix the side reinforcement portion on the outer side of the edging side portion.

9. The honeycomb paper-plastic pallet according to claim 8, characterized in that: The plug-in block is provided with two plug-in pins of different heights, and the plug-in pin on the rotating side close to the side reinforcement portion is lower.

10. The honeycomb paper-plastic pallet according to claim 8, characterized in that: A plurality of structural reinforcement protrusions are arranged on the other side of the side reinforcement portion opposite to the plug-in block, and the plurality of structural reinforcement protrusions are arranged at intervals with the plurality of plug-in blocks.

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