A plastic pallet

Abstract

This utility model belongs to the field of plastic pallet technology, and in particular to a plastic pallet, comprising a pallet body, a middle storage layer, and a top cover; the pallet body has a composite layered structure, with buffer energy-absorbing parts between its layers, and the outer wall of the pallet body has a reinforcing structure and an edge protection structure; the middle storage layer has at least two independent storage compartments; the top cover covers the top of the pallet body; through the independent storage compartment design of the middle storage layer, it is possible to classify and store various types of small batches of goods without the need for additional storage containers, greatly reducing the occupancy rate of warehouse space and adapting to the diverse carrying needs in warehousing and logistics; the detachable connection design between the middle storage layer and the pallet body allows for flexible assembly or disassembly according to the needs of goods storage, further improving usability; the composite layered structure of the pallet body effectively disperses stress and absorbs impact energy, preventing the pallet itself from deforming and cracking, and protecting the carried goods from damage.

Description

Technical Field

[0001] This utility model belongs to the field of plastic pallet technology, and specifically relates to a plastic pallet. Background Technology

[0002] Plastic pallets are widely used in warehousing, logistics, and manufacturing due to their advantages such as light weight, corrosion resistance, and easy cleaning. They are used to carry goods and are transported in conjunction with forklifts, pallet jacks, and other equipment.

[0003] However, existing plastic pallets have significant drawbacks in practical use: 1. Insufficient space utilization: Traditional plastic pallets mostly adopt a single integrated storage structure, which can only meet the carrying requirements of goods of the same type and specification. They are not adaptable to the classified storage of multiple types and small batches of goods, resulting in serious waste of warehouse space; 2. Inconvenient assembly and maintenance: Most of the existing classified pallets are fixed integrated structures, which cannot be disassembled and adjusted according to usage requirements. Moreover, they need to be replaced as a whole after damage, resulting in high maintenance costs.

[0004] To address the aforementioned problems, this utility model proposes a plastic tray. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a plastic tray that is convenient to use and has a high space utilization rate.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic pallet, comprising a pallet body, a detachable storage layer in the middle of the pallet body, and a top cover that cooperates with the pallet body;

[0007] The tray body has a composite layered structure with buffer energy-absorbing parts between the layers, and the outer wall of the tray body has a reinforcing structure and an edge protection structure.

[0008] The middle storage layer is detachably connected to the tray body through a limiting fit, and the middle storage layer is provided with at least two independent placement compartments;

[0009] The top cover fits over the top of the tray body.

[0010] As a preferred technical solution of this utility model, the composite layered structure of the tray body includes an outer layer, an inner layer and an intermediate interlayer located between the outer layer and the inner layer. The intermediate interlayer constitutes the buffer energy absorption part, and multiple uniformly distributed hollow cavities are formed in the intermediate interlayer.

[0011] As a preferred embodiment of this utility model, the intermediate interlayer is a mesh structure, and the hollow cavity is an energy-absorbing cavity with a rhomboid structure formed by the mesh structure.

[0012] As a preferred embodiment of the present invention, the reinforcing structure includes reinforcing ribs provided on the outer side wall of the tray body and a concave portion provided on the bottom surface of the tray body, wherein the concave portion is provided with a plurality of equally spaced reinforcing ribs.

[0013] As a preferred embodiment of this utility model, the reinforcing rib is a conical structure that is larger at the top and smaller at the bottom, and the reinforcing rib is a spindle-shaped structure that is larger in the middle and smaller at both ends.

[0014] As a preferred embodiment of the present invention, the edge protection structure includes a stepped edge provided at the corner of the outer wall of the tray body.

[0015] As a preferred technical solution of this utility model, the top edge of the middle storage layer is provided with a second protruding edge, and the corresponding position of the tray body port is provided with a stepped groove adapted to the second protruding edge. The limiting cooperation is achieved by the engagement of the second protruding edge and the stepped groove.

[0016] As a preferred technical solution of this utility model, the top edge of the tray body is provided with a first protruding edge, and the bottom surface of the top cover is symmetrically fixed with two sets of elastic limiting components adapted to the first protruding edge. The elastic limiting components include an elastic sheet fixed to the bottom surface of the top cover and an arc-shaped locking block fixed to the elastic sheet.

[0017] As a preferred embodiment of this utility model, the substrates of the tray body, the middle storage layer, and the top cover are all made of polypropylene, polyethylene, or polycarbonate.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. The independent storage compartment design in the middle layer enables the classified storage of various types and small batches of goods without the need for additional storage containers, greatly reducing the occupancy rate of warehouse space and adapting to the diverse carrying needs in warehousing and logistics.

[0020] 2. The detachable connection between the middle storage layer and the pallet body allows for flexible assembly or disassembly according to the needs of goods storage, further enhancing adaptability.

[0021] 3. The pallet body adopts a composite layered structure. The outer and inner layers ensure the basic load-bearing strength, while the grid structure of the middle layer and the energy absorption cavity form a buffer energy absorption system, which effectively disperses stress and absorbs impact energy. This not only prevents the pallet itself from deforming and cracking, but also protects the goods it carries from damage, expanding the application of pallets in special cargo handling scenarios such as fragile items and precision parts.

[0022] Other additional advantages and beneficial effects of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the isometric structure of the tray body of this utility model;

[0026] Figure 3 This is a schematic diagram of the isometric structure of the top cover in this utility model;

[0027] Figure 4 This is an exploded view of the tray body in this utility model.

[0028] In the diagram: 1. Tray body; 101. Outer layer; 102. Inner layer; 103. Middle interlayer; 1031. Energy absorption cavity; 11. Reinforcing rib; 12. Edge banding; 13. Step groove; 14. First convex edge; 15. Concave part; 16. Reinforcing rib; 2. Middle storage layer; 21. Placement compartment; 22. Second convex edge; 3. Top cover; 31. Elastic sheet; 32. Arc-shaped locking block. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-4 The present invention provides the following technical solution: a plastic pallet, comprising a pallet body 1, a detachable storage layer 2 in the middle of the pallet body 1, and a top cover 3 that cooperates with the pallet body 1.

[0031] Furthermore, by Figure 1As shown in this embodiment, the tray body 1 has a composite layered structure with buffer energy-absorbing parts between its layers. The outer wall of the tray body 1 has a reinforcing structure and an edge protection structure. The middle storage layer 2 is detachably connected to the tray body 1 through a limiting fit, and the middle storage layer 2 has at least two independent placement compartments 21. The top cover 3 covers the top of the tray body 1. With the above scheme, when in use, the tray body 1 serves as the core load-bearing base of the entire tray. Its composite layered structure provides stable structural support for the whole and can directly bear the combined load of the upper middle storage layer 2, the items to be placed, and the top cover 3.

[0032] When a pallet is subjected to external impacts (such as collisions or vibrations) during handling and stacking, the pre-set buffer energy-absorbing parts between the layers will absorb the impact energy through their own deformation, preventing the impact from being directly transmitted to the internal items, thus achieving the first layer of protection for the items. At the same time, the reinforced structure of the outer wall of the pallet body 1 (such as one-piece molded reinforcing ribs and corrugated protrusions) can improve the bending and compression resistance of the pallet body 1, preventing the pallet body 1 from undergoing structural deformation under heavy loads, while the edge protection structure can reduce the wear when the edges of the pallet body 1 collide with external objects, extending the overall service life of the pallet body 1.

[0033] Before use, the operator can quickly assemble the middle storage layer 2 onto the middle of the pallet body 1 according to the specifications and quantity of the items to be placed, through the preset limiting and matching structure. After assembly, at least two independent placement compartments 21 on the middle storage layer 2 can realize the classification and independent positioning of items: different types or specifications of items can be placed in different placement compartments 21 to avoid contact and friction between items during transportation, which would cause surface damage; at the same time, the side walls of the placement compartments 21 can restrict the horizontal displacement of items, preventing items from sliding or tipping over when the pallet is tilted or vibrated, further improving the stability of item placement.

[0034] If larger items need to be placed, the middle storage layer 2 can be directly removed to form a complete load-bearing space for the tray body 1, thus improving the flexibility of the tray's use.

[0035] After the items are placed, the top cover 3 is placed on top of the pallet body 1. The top cover 3 and the top edge of the pallet body 1 fit together to form a closed protection for the internal space of the pallet body 1. On the one hand, the top cover 3 can prevent external dust, impurities, and liquids (such as rainwater and water spray) from entering the interior of the pallet body 1, thus preventing the items from being contaminated or damp. On the other hand, the top cover 3 can exert a certain vertical limiting effect on the internal items, preventing the items from moving upward due to vertical vibration during the stacking and handling of the pallet, or even falling off the pallet body 1.

[0036] In addition, the closing of the top cover 3 allows the pallet body 1 to form a regular cubic structure, which facilitates the stacking of multiple pallets during storage, saving storage space. At the same time, it prevents the load of the upper pallet from directly acting on the items in the lower pallet during stacking, protecting the items from being squeezed and damaged.

[0037] Preferably, by Figure 1 and Figure 4 As shown in this embodiment, the composite layered structure of the pallet body 1 includes an outer layer 101, an inner layer 102, and an intermediate interlayer 103 located between the outer layer 101 and the inner layer 102. The intermediate interlayer 103 constitutes a buffer energy-absorbing part, and multiple uniformly distributed hollow cavities are formed within the intermediate interlayer 103. With the above solution, during use, the outer layer 101 and the inner layer 102 of the pallet body 1 serve as the load-bearing base of the composite layered structure, respectively undertaking the functions of external protection and internal support: the outer layer 101 is in direct contact with the external environment (such as the ground, handling equipment, and stacked pallets), providing wear-resistant and scratch-resistant surface protection to prevent the intermediate interlayer 103 from being directly damaged by external forces; the inner layer 102 is in direct contact with the middle storage layer 2 or the items to be placed, providing a flat and stable support surface to ensure the fit of the items when placed or the middle storage layer 2 is assembled.

[0038] The intermediate interlayer 103 serves as a buffer and energy-absorbing part. Its uniformly distributed hollow cavities are the core of its buffering function. When the pallet is subjected to external impact (such as handling collision, stacking compression, ground vibration), the impact energy is transmitted to the intermediate interlayer 103 through the outer layer 101. At this time, the sidewall of the hollow cavity will undergo elastic deformation (such as slight denting or expansion). The impact energy is consumed through the deformation process, preventing the energy from directly penetrating the inner layer 102 and being transmitted to the items, thereby reducing the risk of items being damaged due to impact. At the same time, the uniformly distributed design allows the impact energy to be evenly dispersed throughout the intermediate interlayer 103, avoiding buffer failure caused by localized force concentration and ensuring the consistency of buffering performance in different areas of the pallet.

[0039] Optionally, by Figure 1 and Figure 4As shown in this embodiment, the intermediate interlayer 103 has a mesh structure, and the hollow cavity is a rhomboid energy-absorbing cavity 1031 formed by the mesh structure. With the above scheme, when in use, the intermediate interlayer 103 forms a rhomboid energy-absorbing cavity 1031 by the mesh structure. The rhomboid structure has unique mechanical properties. When subjected to force, its sidewalls can produce uniform elastic deformation along the diagonal direction. Compared with traditional cavity structures such as square and circular, the deformation path of the rhomboid energy-absorbing cavity 1031 is more reasonable, which can more fully disperse and absorb external impact energy (such as the impact force generated by handling collisions and stacking compression), and avoid buffer failure caused by energy concentration. At the same time, the mesh-distributed rhomboid energy-absorbing cavities 1031 form a continuous energy transfer and consumption network, so that the impact energy is evenly diffused in the entire intermediate interlayer 103, further reducing the local stress intensity, effectively blocking the impact from being transmitted to the items inside the tray, and significantly improving the protection effect for fragile and precision items.

[0040] Optionally, by Figure 1 and Figure 2 As shown in this embodiment, the reinforcing structure includes reinforcing ribs 11 on the outer wall of the pallet body 1 and a recessed portion 15 on the bottom surface of the pallet body 1. The recessed portion 15 is provided with a plurality of equally spaced reinforcing ribs 16. With the above solution, during use, the outer wall of the pallet body 1 is prone to lateral force during handling, stacking or storage, which may cause the sidewall to bend, dent or even break. The reinforcing ribs 11 on the outer wall are integrally formed with the outer wall of the pallet body 1 to form a "rib-shaped support structure" extending along the height or length direction of the sidewall: On the one hand, the reinforcing ribs 11 increase the local structural thickness and cross-sectional moment of inertia of the sidewall, improve the bending rigidity of the sidewall itself, and directly reduce the deformation probability of the sidewall under lateral force; on the other hand, when the lateral force is applied to the sidewall, the reinforcing ribs 11 can disperse the concentrated lateral stress along the extension direction of the reinforcing ribs 11 to a larger area of ​​the sidewall, avoid stress concentration at a certain point leading to sidewall damage, thereby achieving structural reinforcement of the outer wall of the pallet body 1 and ensuring that the sidewall maintains morphological stability under stress.

[0041] The concave portion 15 can form a "deformation buffer space" on the bottom surface. When the bottom surface is subjected to a slight impact, the sidewall of the concave area can absorb energy through slight deformation, thus preventing the bottom surface from being directly subjected to rigid force and cracking.

[0042] The reinforcing rib 16 is integrally formed with the inner wall of the concave portion 15 to form a support frame along the length or width of the concave portion 15. When the pallet is subjected to vertical load, the reinforcing rib 16 can evenly transfer the vertical load on the bottom surface to the edge area of ​​the concave portion 15, and then from the edge area to the whole pallet body 1, so as to prevent the concave portion 15 from collapsing due to load concentration.

[0043] Preferably, by Figure 1 and Figure 2 As shown in this embodiment, the reinforcing rib 11 is a conical structure with a larger top and a smaller bottom, and the reinforcing rib 16 is a spindle-shaped structure with a larger middle and smaller ends. With the above scheme, when in use, the conical design of the reinforcing rib 11 can directly expand the contact area of ​​the force-bearing area by having a larger cross-sectional size at the top, and quickly disperse the concentrated stress to a wider area of ​​the side wall, avoiding the upper side wall from sinking or cracking due to stress concentration. The smaller cross-sectional size at the bottom reduces the material redundancy in non-high stress areas while ensuring the foundation support, realizing "reinforcement as needed" and taking into account both structural strength and lightweight.

[0044] When the tray body 1 has a concave bottom surface 15, the middle area is the main stress point for vertical loads (such as the weight of the items and the pressure of stacking). The "large in the middle" design of the spindle structure can directly improve the bending and collapse resistance of the core stress area by increasing the moment of inertia of the middle section. The "small at both ends" shape makes the connection between the two ends of the rib and the inner wall of the concave part 15 smoother, avoiding material accumulation caused by the excessive cross section at both ends, while reducing stress concentration at the edge of the concave part 15 and preventing cracking at the connection between the reinforcing rib 16 and the concave part 15.

[0045] Optionally, by Figure 1 As shown in this embodiment, the edge protection structure includes a stepped edge 12 located at the corner of the outer wall of the pallet body 1. With the above solution, during use, the stepped edge 12 forms a "wrap-around protection" for the corner through a multi-layer stepped structure: on the one hand, when there is a collision or compression, the outer step can contact the external force first, and absorb energy through its own deformation and layering, avoiding the external force from directly acting on the corner substrate of the pallet body 1, reducing the cracking and chipping of the substrate caused by the impact; on the other hand, the stepped structure increases the contact area at the corner, dispersing local wear to the surface of the multi-layer stepped structure, reducing the wear intensity per unit area, avoiding the destruction of structural integrity caused by rapid wear of the corner, and significantly extending the overall service life of the pallet body 1.

[0046] Optionally, by Figure 1As shown in this embodiment, the top edge of the middle storage layer 2 is provided with a second protruding edge 22, and the corresponding position of the port of the tray body 1 is provided with a stepped groove 13 that matches the second protruding edge 22. The limiting fit is achieved by the engagement of the second protruding edge 22 and the stepped groove 13. After adopting the above solution, when the middle storage layer 2 is assembled to the tray body 1, the second protruding edge 22 of the top edge of the middle storage layer 2 and the stepped groove 13 of the port of the tray body 1 form a "convex-concave" fitting structure: the operator can pass through the second protruding edge 22 without precise alignment. Guided by the contour of the stepped groove 13, the middle storage layer 2 is quickly positioned to the preset assembly position of the tray body 1. The outer wall of the second protruding edge 22 can form a sliding fit with the inner wall of the stepped groove 13, guiding the middle storage layer 2 to be smoothly lowered along the depth direction of the stepped groove 13, avoiding tilting or jamming of the storage layer due to misalignment during assembly. When the second protruding edge 22 is fully embedded in the stepped groove 13, the initial engagement of the two can achieve the pre-fixation of the middle storage layer 2, preventing the storage layer from shifting when placing items later, and providing a stable foundation for placing items.

[0047] After assembly, the outer peripheral wall of the second protruding edge 22 fits tightly against the inner peripheral wall of the stepped groove 13, forming a radial (horizontal) rigid constraint. When the pallet is subjected to horizontal impact during handling, if the middle storage layer 2 tends to move in the horizontal direction, the second protruding edge 22 will directly contact the inner wall of the stepped groove 13. The stepped groove 13 blocks the displacement of the second protruding edge 22 through its own structural strength, thereby limiting the horizontal movement of the middle storage layer 2 as a whole. This can effectively prevent intermittent shaking between the middle storage layer 2 and the pallet body 1, prevent items in the storage compartment 21 from colliding and rubbing against each other due to horizontal displacement, and ensure the stability of item storage.

[0048] Preferably, by Figure 1 and Figure 3As shown, in this embodiment, the top edge of the tray body 1 is provided with a first protruding edge 14, and the bottom surface of the top cover 3 is symmetrically fixed with two sets of elastic limiting components adapted to the first protruding edge 14. The elastic limiting components include an elastic sheet 31 fixed to the bottom surface of the top cover 3 and an arc-shaped locking block 32 fixed to the elastic sheet 31. With the above solution, when the top cover 3 is closed on the top of the tray body 1, the two sets of elastic limiting components symmetrically arranged on the bottom surface of the top cover 3 achieve the closing guidance through the structural characteristics of the arc-shaped locking block 32: the outer side of the arc-shaped locking block 32 is a smooth arc surface, and when the top cover 3 is lowered... When placed close to the top surface of the tray body 1, the arc surface of the arc-shaped locking block 32 will first contact the outer side of the first protruding edge 14 at the top edge of the tray body 1. Since the arc surface has no sharp edges, it can form a natural guide through surface contact. Even if there is a slight misalignment of the top cover 3, the arc surface can automatically adjust the horizontal position of the top cover 3 through sliding friction with the first protruding edge 14, so that the two sets of elastic limiting components are symmetrically aligned with the first protruding edge 14. At the same time, the guiding effect of the arc-shaped locking block 32 can avoid "jamming" when closing, ensuring that the top cover 3 is smoothly lowered to the preset closing position and achieving rapid pre-positioning.

[0049] During the closing process, the first protruding edge 14 exerts a squeezing force on the arc surface of the arc-shaped locking block 32, forcing the elastic piece 31 that fixes the arc-shaped locking block 32 to undergo elastic deformation in a direction away from the first protruding edge 14. When the top cover 3 is in place, the arc-shaped locking block 32 moves to the inside of the first protruding edge 14. At this time, the deformation potential energy of the elastic piece 31 is converted into a restoring force, pushing the arc-shaped locking block 32 to rebound towards the first protruding edge 14, so that the inner wall of the arc-shaped locking block 32 is tightly fitted with the inner wall of the first protruding edge 14, forming a rigid constraint in the horizontal direction. This can prevent the top cover 3 from moving horizontally due to the vibration of the pallet being transported, avoid gaps between the top cover 3 and the pallet body 1, and ensure that the internal items are not affected by horizontal displacement.

[0050] Optionally, by Figure 1 As shown in this embodiment, the substrates of the tray body 1, the middle storage layer 2, and the top cover 3 are all polypropylene, polyethylene, and polycarbonate. After adopting the above solution, PP has excellent rigidity and bending resistance, and good low-temperature impact performance; PE (especially high-density polyethylene HDPE) has outstanding wear resistance and impact resistance; and PC has high tensile strength and flexural modulus.

[0051] Components not described in detail in this article are existing technologies.

[0052] The working principle and usage process of this utility model: When the plastic pallet of this utility model is in use, the pallet body 1 serves as the core load-bearing base of the entire pallet. Its composite layered structure provides stable structural support for the whole and can directly bear the combined load of the upper middle storage layer 2, the items to be placed and the top cover 3.

[0053] When a pallet is subjected to external impact (such as collision or vibration) during handling or stacking, the pre-set buffer energy-absorbing parts between the layers will absorb the impact energy through their own deformation, preventing the impact from being directly transmitted to the internal items, thus achieving the first layer of protection for the items.

[0054] Meanwhile, the reinforced structure of the outer wall of the pallet body 1 (such as one-piece molded reinforcing ribs and corrugated protrusions) can improve the bending and compression resistance of the pallet body 1 and prevent the pallet body 1 from deforming under heavy loads. The edge protection structure can reduce the wear when the edge of the pallet body 1 collides with external objects and extend the overall service life of the pallet body 1.

[0055] Before use, the operator can quickly assemble the middle storage layer 2 onto the middle of the pallet body 1 according to the specifications and quantity of the items to be placed through the preset limiting and matching structure. After assembly, at least two independent placement compartments 21 on the middle storage layer 2 can realize the classification and independent positioning of items: different types or specifications of items can be placed in different placement compartments 21 to avoid contact and friction between items during transportation, which would cause surface damage.

[0056] Meanwhile, the side walls of the placement compartment 21 can restrict the horizontal displacement of items, preventing items from sliding or tipping over when the tray is tilted or vibrated, thus further improving the stability of item placement.

[0057] If you need to place larger items, you can directly remove the middle storage layer 2 to make the tray body 1 form a complete load-bearing space, thus improving the flexibility of the tray.

[0058] After the items are placed, the top cover 3 is placed on the top of the tray body 1. The top cover 3 and the top edge of the tray body 1 fit together to form a closed protection for the internal space of the tray body 1. On the one hand, the top cover 3 can prevent external dust, impurities and liquids from entering the interior of the tray body 1, and prevent the items from being contaminated or damp.

[0059] On the other hand, the top cover 3 can exert a certain vertical limiting effect on the internal items, preventing the items from moving upward due to vertical vibration during the stacking and handling of the pallet, or even detaching from the pallet body 1.

[0060] In addition, the closing of the top cover 3 allows the pallet body 1 to form a regular cubic structure, which facilitates the stacking of multiple pallets during storage, saving storage space. At the same time, it prevents the load of the upper pallet from directly acting on the items in the lower pallet during stacking, protecting the items from being squeezed and damaged.

[0061] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A plastic pallet, characterized in that: It includes a tray body (1), a central storage layer (2) detachably assembled to the tray body (1), and a top cover (3) that cooperates with the tray body (1); The tray body (1) is a composite layered structure with buffer energy absorption parts between its layers. The outer wall of the tray body (1) is provided with a reinforcing structure and an edge protection structure. The middle storage layer (2) is detachably connected to the tray body (1) through a limiting fit, and the middle storage layer (2) is provided with at least two independent placement compartments (21); The top cover (3) is fitted onto the top of the tray body (1).

2. A plastic pallet according to claim 1, characterized in that: The composite layered structure of the tray body (1) includes an outer layer (101), an inner layer (102), and an intermediate interlayer (103) located between the outer layer (101) and the inner layer (102). The intermediate interlayer (103) constitutes the buffer energy absorption part, and multiple uniformly distributed hollow cavities are formed in the intermediate interlayer (103).

3. A plastic pallet according to claim 2, characterized in that: The intermediate interlayer (103) has a mesh structure, and the hollow cavity is an energy-absorbing cavity (1031) with a rhomboid structure formed by the mesh structure.

4. A plastic pallet according to claim 1, characterized in that: The reinforcing structure includes reinforcing ribs (11) on the outer side wall of the tray body (1) and a recess (15) on the bottom surface of the tray body (1), wherein a plurality of equally spaced reinforcing ribs (16) are provided in the recess (15).

5. A plastic pallet according to claim 4, characterized in that: The reinforcing rib (11) is a conical structure that is larger at the top and smaller at the bottom, and the reinforcing rib (16) is a spindle-shaped structure that is larger in the middle and smaller at both ends.

6. A plastic pallet according to claim 1, characterized in that: The edge protection structure includes a stepped edging (12) located at the corner of the outer wall of the tray body (1).

7. A plastic pallet according to claim 1, characterized in that: The top edge of the middle storage layer (2) is provided with a second protruding edge (22), and the corresponding position of the port of the tray body (1) is provided with a stepped groove (13) adapted to the second protruding edge (22). The limiting cooperation is achieved by the engagement of the second protruding edge (22) and the stepped groove (13).

8. A plastic pallet according to claim 7, characterized in that: The top edge of the tray body (1) is provided with a first protruding edge (14), and the bottom surface of the top cover (3) is symmetrically fixed with two sets of elastic limiting components adapted to the first protruding edge (14). The elastic limiting components include an elastic sheet (31) fixed to the bottom surface of the top cover (3) and an arc-shaped locking block (32) fixed to the elastic sheet (31).

9. A plastic pallet according to claim 1, characterized in that: The substrates of the tray body (1), the middle storage layer (2), and the top cover (3) are all made of polypropylene, polyethylene, or polycarbonate.

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