A paper fruit tray

Abstract

The utility model provides a kind of paper fruit tray, including tray body, circumferential side wall and first hem provided on the side wall upper edge. The tray body top surface is provided with the drainage groove that extends outwardly and penetrates the side wall, and the outer end of groove body is provided with second hem; tray body, side wall and drainage groove adopt integrated connection structure and are covered with lamination layer. The design effectively solves the problem of poor drainage through the extension of the drainage groove, preventing fruits from rotting due to waterlogging. At the same time, the integrated lamination layer and double hem structure significantly improves the waterproofness and structural strength. The preferred cambered tray body enhances the load-bearing and compression resistance, making it suitable for transportation and storage scenarios. The utility model has the advantage of efficient drainage, which helps to extend the shelf life of fruits.

Description

Technical Field

[0001] This utility model relates to the field of paper lunch box technology, specifically to a paper fruit tray. Background Technology

[0002] In the packaging and transportation of fresh agricultural products, paper fruit trays offer significant advantages such as being lightweight, biodegradable, low-cost, and widely available. However, when traditional paper fruit trays come into contact with moisture, the moisture quickly seeps into the paper, causing the tray to soften, lose strength, and even break. This not only affects the tray's ability to support and protect the fruit but can also lead to the growth of microorganisms in a damp environment, accelerating spoilage and shortening shelf life.

[0003] Laminated paper is used in food packaging such as paper cups and lunch boxes due to its excellent waterproof properties. However, when laminated paper is used in fruit trays, a large number of openings are usually required to achieve good breathability and drainage. Moisture can gradually seep into the tray along the edges of the openings, making it difficult for the laminated paper, which is originally designed to be waterproof, to fully exert its waterproof advantages in this application scenario. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a paper fruit tray that can effectively alleviate the problem of poor drainage.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A paper fruit tray includes a tray body, a side wall circumferentially provided on the tray body, a first rolled edge provided on the upper edge of the side wall, a drainage groove provided on the top surface of the tray body with its end penetrating through the side wall and extending outward, and a second rolled edge provided on the drainage groove located outside the side wall. The tray body, side wall and drainage groove are integrally connected and provided with a coating layer.

[0007] As a preferred technical solution, the tray body is constructed as an arched structure with its lower surface convex upwards, and the drainage groove is disposed on the arched structure.

[0008] As a preferred technical solution, the coating layer is made of polyethylene film or polypropylene film.

[0009] As a preferred technical solution, the lower edge of the side wall is provided with a snap-fit ​​hole adapted to the drainage groove. The height of the snap-fit ​​hole is greater than the depth of the drainage groove. The top of the snap-fit ​​hole is connected to the top of the drainage groove, and the area of ​​the bottom of the snap-fit ​​hole that extends beyond the drainage groove is used for circumferential heat-pressing connection with the tray body.

[0010] As a preferred technical solution, at least one set of drainage channels is arranged in a crisscross pattern, and the crisscrossing drainage channels divide the tray body into zones for fruit placement.

[0011] As a preferred technical solution, the first rolled edge is also provided with a cover body through an interference fit.

[0012] As a preferred technical solution, the second rolled edge abuts against the outer periphery of the side wall.

[0013] As a preferred technical solution, the drainage trough has a width of 3–8 mm, a depth of 2–5 mm, a bottom slope of 5°–15°, and a spacing of 40–80 mm between adjacent drainage troughs.

[0014] The advantages and beneficial effects of this utility model are as follows: A drainage groove is provided on the top surface of the tray body. The end of the drainage groove penetrates through the side wall and extends outward, allowing water to drain quickly out of the tray and avoiding the problem of fruit soaking caused by water accumulation inside the tray. The tray body is constructed with an arched structure with the lower surface convex upward, which increases the load-bearing capacity and compressive strength of the tray and prevents deformation during transportation or stacking. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0017] Figure label:

[0018] 1-Pallet body, 2-Side wall, 3-First rolled edge, 4-Drainage groove, 5-Second rolled edge, 6-Coating layer, 7-Snap-fit ​​hole, 8-Lid. Detailed Implementation

[0019] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0020] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly or implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] In some embodiments, this paper fruit tray includes a tray body 1 integrally molded from paper material. The tray body 1 is circumferentially connected to upwardly extending sidewalls 2. The upper edge of the sidewalls 2 is rolled outwards to form a first rolled edge 3 to enhance edge strength. A drainage groove 4 is provided on the top surface of the tray body 1. The end of the drainage groove 4 penetrates the sidewall 2 and extends outwards, allowing fluid to drain directly outside the tray. The end of the drainage groove 4 located outside the sidewall 2 is further rolled to form a second rolled edge 5 to prevent liquid backflow or edge abrasion. The entire structure—the tray body, sidewalls, and drainage groove—is integrally connected by a molding process and fully covered with a coating layer 6 to ensure waterproof performance.

[0023] Compared to the technique of directly drilling holes in the tray body, direct drilling is prone to water seepage at the edge of the hole, causing the paper fruit tray to rot in a short period of time. Although using coated paper (or laminated paper) can improve this to some extent, the edge effect (capillary effect) still completely solves the above problem, especially for fresh fruits and vegetables with high water content. The present invention uses a coated layer 6 in conjunction with a drainage groove 4 and a second rolled edge 5, and sets the contact surface between the drainage groove 4 and water as a coated layer 6, thereby solving the above problem.

[0024] In some embodiments, the tray body 1 is constructed as an arched structure with its lower surface convex upwards, and the drainage groove 4 is integrated into the top surface of the arch. This design significantly improves the tray's load-bearing capacity and compressive strength by dispersing pressure through the arched curved surface, such as withstanding fruit stacking or transportation impacts. Simultaneously, the 5°–15° slope of the arched surface guides water flow naturally into the drainage groove 4, preventing water accumulation. This solves the problem of traditional paper trays being easily deformed, making it particularly suitable for supermarket stacking or logistics transportation scenarios.

[0025] The coating layer 6 is preferably made of polyethylene (PE) film or polypropylene (PP) film, and is bonded to the surface of the tray body 1 through a hot-pressing process. This layer forms a waterproof barrier to prevent moisture penetration and softening of the paper material, while maintaining breathability to delay fruit decay. The coating layer can directly contact the fruit, meets food safety standards, and requires no additional treatment from the user.

[0026] In some embodiments, the lower edge of the sidewall 2 is pre-set with snap-fit ​​holes 7 adapted to the drainage groove 4, wherein the height of the snap-fit ​​hole 7 is designed to be 1–3 mm greater than the depth difference of the drainage groove 4. The top of the snap-fit ​​hole 7 connects with the top of the drainage groove 4, and the area of ​​the bottom of the snap-fit ​​hole 7 extending beyond the drainage groove is heat-pressed to the periphery of the tray body 1. This simplifies the manufacturing process, allowing users or manufacturers to quickly assemble the tray. The snap-fit ​​hole provides positioning guidance while ensuring a smooth and leak-free drainage path.

[0027] It is necessary to explain here that the pallet body can be formed by pressing to obtain an arched structure, or by folding to obtain a drainage groove structure. Considering that in addition to the drainage groove 4 structure, the pallet body 1 can still have a certain amount of hot pressing allowance, specifically, taking the circular pallet body 1 as an example, after the end with the drainage groove and the second rolled edge 5 are provided in a circumferential ring, the non-drainage groove structure can be connected to the side wall by hot pressing through the coating layer 6.

[0028] The drainage channels 4 are arranged in a crisscross pattern, such as a cross or grid, dividing the tray body 1 into multiple independent sections, each 40–80 mm in size. Each section is used to place fruits such as apples and citrus fruits separately. The independent sections are used to guide merchants to control the density of fruit placement. At the same time, considering the arched design, the fruits in the sections located at the edges of the tray body 1 can be relatively larger, while the fruits in the sections located in the center of the tray body 1 can be relatively smaller.

[0029] In some embodiments, the drainage channel has a width of 3–8 mm, a depth of 2–5 mm, and a bottom slope of 5°–15° to optimize fluid flow efficiency.

[0030] The first rolled edge 3 is interference-fitted with a cover 8, such as a transparent plastic cover, the edge of which is embedded in the rolled gap of the first rolled edge 3 to form a seal. At the same time, the second rolled edge 5 abuts against the outer surface of the side wall 2, enhancing the structural stability.

[0031] In some mass production embodiments, the drainage channel 4 is set to a width of 5mm, a depth of 3mm, a slope of 10°, and a spacing of 50mm, and the coating layer 6 is 0.05mm thick, balancing drainage efficiency and structural strength.

[0032] In some embodiments, the cover 8 is made of transparent plastic, allowing consumers to visually observe the shape and appearance of the fruit; plastic wrap or similar materials can also be used.

[0033] When using the tray, the user places the fruit in the designated compartment. Due to the guiding effect of the arched body and drainage groove 4, condensate can be quickly drained from the groove to the outside, such as the work surface, without the need for manual wiping. The coating layer 6 prevents moisture penetration and extends the life of the tray. Multiple paper fruit trays can be nested and stacked during storage, and the lid is used to hold the fruit when in use.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A paper fruit tray, comprising a tray body (1), wherein the tray body (1) is provided with side walls (2) circumferentially, and the upper edge of the side walls (2) is provided with a first rolled edge (3) extending outward, characterized in that, The top surface of the pallet body (1) is provided with a drainage groove (4) that extends outward from the end through the side wall (2). The drainage groove (4) located outside the side wall (2) is provided with a second rolled edge (5). The pallet body (1), the side wall (2) and the drainage groove (4) are integrally connected and provided with a coating layer (6).

2. The paper fruit tray according to claim 1, characterized in that, The tray body (1) is constructed as an arched structure with its lower surface convex upwards, and the drainage groove (4) is provided on the arched structure.

3. The paper fruit tray according to claim 1, characterized in that, The coating layer (6) is made of polyethylene film or polypropylene film.

4. The paper fruit tray according to claim 1, characterized in that, The lower edge of the side wall (2) is provided with a snap-fit ​​hole (7) adapted to the drainage groove (4). The height of the snap-fit ​​hole (7) is greater than the depth of the drainage groove (4). The top of the snap-fit ​​hole (7) is connected to the top of the drainage groove (4). The area of ​​the bottom of the snap-fit ​​hole (7) that extends beyond the drainage groove (4) is used for circumferential hot-pressing connection with the tray body (1).

5. The paper fruit tray according to claim 4, characterized in that, The drainage channels (4) are arranged in a crisscross pattern, with at least one set of each. The crisscrossing drainage channels (4) divide the tray body (1) into sections for fruit placement.

6. The paper fruit tray according to claim 1, characterized in that, The first rolled edge (3) is also provided with a cover (8) through an interference fit.

7. The paper fruit tray according to claim 1, characterized in that, The second rolled edge (5) abuts against the outer periphery of the side wall (2).

8. The paper fruit tray according to any one of claims 1-7, characterized in that, The width of the drainage trough (4) is 3–8 mm; the depth of the drainage trough (4) is 2–5 mm; the slope of the bottom of the trough is 5°–15°; and the distance between adjacent drainage troughs (4) is 40–80 mm.

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