WO2022007911A1

WO2022007911A1 - Pallet

Info

Publication number: WO2022007911A1
Application number: PCT/CN2021/105353
Authority: WO
Original assignee: 上海箱箱智能科技有限公司
Priority date: 2020-07-10
Filing date: 2021-07-09
Publication date: 2022-01-13
Also published as: CN111824552A

Abstract

A pallet (1), comprising: a top plate (2), a bottom plate (3), and upright columns (4). The top plate (2), the upright columns (4) and the bottom plate (3) are connected in sequence from top to bottom. The top plate (2) is provided with an upper panel (201) and a lower panel (202) connected to each other, and/or the bottom plate (3) is provided with an upper panel (301) and a lower panel (302) connected to each other.

Description

tray

Cross-reference to related applications

This patent application claims the priority of the Chinese patent application with the application number 2020106631154 and the invention name "tray" filed on July 10, 2020, the full text of which is incorporated herein by reference.

technical field

The present invention relates to a logistics appliance, in particular to a pallet.

Background technique

At present, pallets generally have wooden pallets and plastic pallets. According to the production method, plastic trays can be basically divided into the following categories: injection molding trays, blow molding trays, single-layer blister molding trays, double-layer blister molding trays, injection molding trays, and rotational molding trays. However, there are basically some disadvantages in different environments, cargo requirements, transportation and handling conditions in the market:

1. The disadvantages of injection-molded pallets are: short pallet life, poor impact resistance, heavy pallet weight, poor slip resistance in low-temperature cold storage and brittle materials, etc., most of which cannot be repaired.

2. The disadvantages of blow-molded pallets are: the loading strength of the pallet is generally not high, and it cannot be put on the shelf. When the load is high, the local compressive capacity is poor, the anti-skid is not good, and it cannot be repaired.

3. The disadvantages of single-layer plastic forming trays are: the strength of the tray is generally not high, it cannot be put on the shelf, the local compression resistance is poor under high load, the anti-skid is not good, and it cannot be repaired. The surface is required to be flat and other requirements of the goods. Locally there is uneven wall thickness.

4. The disadvantages of the double-layer plastic forming tray are: the local compressive capacity is poor (static load) when the hollow structure is under high load, the anti-skid is not good, and it cannot be repaired; Uneven wall thickness.

5. The disadvantages of injection molding trays are: solid structure, heavy tray weight, poor slip resistance, inability to maintain, low output, and high product cost.

6. The disadvantages of rotomolding are: the loading strength of the pallet is generally not high, and it cannot be put on the shelf. When the load is high, the local compressive capacity is poor, the anti-skid is not good, the output is low, and it cannot be maintained.

Therefore, there is a need to provide a better tray, such as easier maintenance, higher strength, and/or better slip resistance.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a pallet that is easy to maintain, has high strength, and/or has better anti-slip properties.

In order to achieve the above object, according to the first aspect of the present application, a tray is provided, the tray comprising:

roof;

the bottom plate; and

a column, the top plate, the column and the bottom plate are connected in sequence from top to bottom; wherein

The top panel has upper and lower panels connected to each other, and/or the bottom panel has upper and lower panels connected to each other.

In one embodiment, the tray has a plurality of uprights, one end of each of the uprights is detachably connected to the top plate, and the other end is detachably connected to the bottom plate.

In one embodiment, the top plate is provided with a plurality of top plate mounting holes, the bottom plate is provided with a plurality of bottom plate mounting holes, the tray has a plurality of columns, each of the column is provided with a column mounting hole; and the tray It further includes a plurality of connecting pieces, wherein each connecting piece passes through the corresponding top plate mounting hole, the upright post mounting hole and the bottom plate mounting hole in turn to connect the top plate, the upright column and the bottom plate. Connect in sequence.

In one embodiment, when the top panel has an upper panel and a lower panel connected to each other, a reinforcing member is provided between the upper panel of the top panel and the lower panel of the top panel.

In one embodiment, at least a part of the reinforcing member between the upper plate of the top plate and the lower plate of the top plate is placed directly above the column.

In one embodiment, the reinforcing member between the upper plate of the top plate and the lower plate of the top plate is a steel pipe.

In one embodiment, when the top plate has an upper plate and a lower plate connected to each other, at least one of the upper plate of the top plate and the lower plate of the top plate has a plurality of top plate protrusions distributed on the inner surface, at least a part of which is distributed on the inner surface of the top plate. The top plate protrusions are sequentially connected together by the ribs.

In one embodiment, when the bottom plate has an upper plate of the bottom plate and a lower plate of the bottom plate that are connected to each other, a reinforcing member is provided between the upper plate of the bottom plate and the lower plate of the bottom plate.

In one embodiment, at least a part of the reinforcing member between the upper plate of the bottom plate and the lower plate of the bottom plate is placed directly below the column.

In one embodiment, the reinforcing member between the upper plate of the bottom plate and the lower plate of the bottom plate is a steel pipe.

In one embodiment, when the bottom plate has an upper plate and a lower plate connected to each other, a plurality of reinforcing protrusions are distributed on the inner surface of at least one of the upper plate of the bottom plate and the lower plate of the bottom plate, at least a part of which is The reinforcing protrusions are sequentially connected together by the ribs.

In one embodiment, the top plate and/or the bottom plate are made by a double-layer blister process.

In one embodiment, the back of the top plate is provided with a top plate positioning groove, the top plate mounting hole is provided at the top plate positioning groove, and the top of the column is provided with a top boss, the top boss and The corresponding top plate positioning grooves are matched.

In one embodiment, a top plate groove is provided on the outer periphery of the top plate positioning groove, and an upper mounting wall is provided on the outer periphery of the top of the column, and the mounting wall is operably embedded in the top plate groove.

In one embodiment, the top outer periphery of the top plate positioning groove is provided with an annular protrusion protruding from the back surface of the top plate.

In one embodiment, the top plate is provided with at least three rows of the top plate positioning grooves spaced apart from each other, and the number of the top plate positioning grooves in each row is at least three.

In one embodiment, the four top plate positioning grooves are respectively disposed at four corners of the top plate, and each of the top plate positioning grooves is provided with at least two top plate mounting holes.

In one embodiment, the front of the bottom plate is provided with a bottom plate positioning groove, the bottom plate mounting hole is provided at the bottom plate positioning groove, and the bottom end of the column is provided with a bottom boss, the bottom boss is It is matched with the corresponding positioning groove of the bottom plate.

In one embodiment, a bottom plate groove is provided on the outer periphery of the bottom plate positioning groove, and a lower mounting wall is provided on the outer periphery of the bottom of the column, and the lower mounting wall is operably embedded in the bottom plate groove.

In one embodiment, the outer periphery of the top of the bottom plate positioning groove is provided with an annular protrusion protruding from the front surface of the bottom plate.

In one embodiment, the bottom plate is provided with at least three rows of the bottom plate positioning grooves spaced apart from each other, and the number of the bottom plate positioning grooves in each row is at least three.

In one embodiment, the four bottom plate positioning grooves are respectively disposed at four corners of the bottom plate, and each of the bottom plate positioning grooves is provided with at least two bottom plate mounting holes.

In one embodiment, the top plate, the uprights and the bottom plate are detachably connected to each other.

In one embodiment, a plurality of anti-skid strips are disposed on the front surface of the top plate, and the anti-skid strips are made of TPE, TPU, SBS, TPO or TPS material.

In one embodiment, the front surface of the top plate is provided with a plurality of anti-skid strips, and the anti-skid strips are 0.5mm-3mm higher than the front surface of the top plate, preferably 1mm-2mm higher.

In one embodiment, the connecting piece includes a main connecting piece and an auxiliary connecting piece, wherein the main connecting piece passes through the top plate, the upright column and the bottom plate in sequence along the first direction, and the auxiliary connecting piece runs along the A second direction opposite to the first direction at least partially penetrates the bottom plate and is snap-connected to the main connecting piece.

According to a second aspect of the present invention, there is also provided a tray, the tray comprising:

roof;

the bottom plate; and

The top plate and/or the bottom plate are made by a double-layer blister process.

According to a third aspect of the present invention, there is provided a method for manufacturing a plate, the plate having an upper plate, the manufacturing method comprising the steps of:

While the first material is extruded to a die by the first extrusion device, a second material different from the first material is extruded to the die by the second extrusion device so that the first material and the The second material is at least partially mixed in the mold in a molten state to form the upper plate, and the material of a part of the surface of the upper plate is the first material, and the material of another part of the surface is the second material, so The first material and the second material are two different materials.

In one embodiment, the hardness of the first material and the second material are different.

In one embodiment, the first material is selected from one of the following materials: PE, PET, PVC, PS and PMMA; and the second material is selected from one of the following materials: TPE, TPU, SBS, TPO and TPS.

In one embodiment, the surface of the upper plate formed of the first material is lower than the surface of the upper plate formed of the second material.

In one embodiment, the manufacturing method further includes the steps of: providing a lower plate, and connecting the upper plate and the lower plate to each other through a double-layer blister process.

In one embodiment, the manufacturing method further includes the step of: placing a reinforcing member between the upper plate and the lower plate in a double-layer blister process.

According to a fourth aspect of the present invention, there is provided a board having an upper board to which an anti-skid tape is attached, and the part of the upper board where the anti-skid tape is provided has sequentially from top to bottom An anti-skid layer, a mixed layer and a substrate layer, wherein the mixed layer is formed by mixing a first material and a second material different from the first material, wherein the anti-skid layer is made of the second material.

In one embodiment, the mixed layer is formed by fusing the first material and the second material with each other.

In one embodiment, the second material is selected from one of the following materials: TPE, TPU, SBS, TPO and TPS.

In one embodiment, the material of the substrate layer is selected from one of the following materials: PE, PET, PVC, PS and PMMA.

In one embodiment, the thickness of the anti-skid layer is 1˜4 mm.

In one embodiment, the thickness of the mixed layer is 0.5-2 mm, preferably 1-1.5 mm.

In one embodiment, the height of the anti-skid strip protruding from the surface of the upper plate is 0.5-3 mm, preferably 1-2 mm.

In one embodiment, the hardness of the anti-skid layer is 65-75HS.

In one embodiment, the width of the anti-skid belt is 30mm˜60mm, preferably 40mm˜50mm.

In one embodiment, a plurality of anti-skid strips spaced apart from each other are distributed on the upper plate.

In one embodiment, the plate further has a lower plate, the lower plate is connected to the other side of the upper plate opposite to the side provided with the anti-skid belt, and the upper plate and the lower plate are hollow.

In one embodiment, the upper plate and the lower plate are made by a double-layer blister process.

In one embodiment, a reinforcing member is provided between the upper plate and the lower plate.

In one embodiment, the reinforcing member is a steel pipe.

According to a fifth aspect of the present invention, a pallet is provided, the pallet includes at least one top plate, and the top plate adopts the above-mentioned plate material.

According to a sixth aspect of the present invention, a pallet is provided, the pallet includes a top plate, a bottom plate and a plurality of uprights, the top plate, the uprights and the bottom plate are sequentially connected from top to bottom via connecting pieces, wherein all the The connectors include:

a main connecting piece, the main connecting piece has a rod-shaped body and a hook disposed at the bottom end of the rod-shaped body; and

an auxiliary connecting piece, the auxiliary connecting piece has a rod-shaped body and can be operably inserted into the end of the main connecting piece provided with the hook.

In one embodiment, a hollow channel extending along the central axis of the rod-shaped body is provided inside the rod-shaped body of the main connector, a first limiting platform is formed on the side wall defining the hollow channel, and the auxiliary connection The outer wall of the rod-shaped body of the component is provided with a second stop, wherein the second stop is operably abutted against the first stop.

In one embodiment, the hollow channel of the main connecting member is provided with a stop table above the first limiting platform, and the auxiliary connecting member is provided with barbs, wherein the barbs are positioned on the second limiting platform. between the bit table and one end of the auxiliary connecting piece, and the barb operably hooks the mouth stop table.

In one embodiment, the top end of the main connector is provided with a cap, the diameter of the cap is larger than the diameter of the rod-shaped body, and the bottom end sidewall of the rod-shaped body of the main connector is provided with a drain port , the water outlet communicates with the hollow channel and leads to the outside.

In one embodiment, the hollow channel runs through the entire rod-shaped body of the main connector and the cap.

In one embodiment, a disassembly groove is provided on the side wall of the rod-shaped main body of the auxiliary connector.

In one embodiment, the bottom end of the main connecting member has two support arms separated from each other, and the hook is provided on the outer side of each support arm.

In one embodiment, both the main connector and the auxiliary connector are made of plastic.

In one embodiment, both the main connecting piece and the auxiliary connecting piece are made of plastic with glass fiber added.

According to a seventh aspect of the present invention, there is provided a connector, the connector comprising:

According to an eighth aspect of the present invention, a column is provided, the column has a columnar body, and at least two top bosses protruding from the top surface of the columnar body are provided on the outer periphery of the top of the columnar body, wherein the columnar body is At least two of the top bosses of the body are provided with upright column mounting holes penetrating up and down along the direction of the central axis of the cylindrical body.

In one embodiment, an upper mounting wall is provided on the outer periphery of the cylindrical body between two adjacent top bosses.

In one embodiment, the outer periphery of the bottom of the cylindrical body is provided with at least two bottom bosses protruding from the bottom surface of the cylindrical body, wherein the top bosses and the bottom bosses are disposed opposite to each other, and at least two The interior of the top boss and the corresponding oppositely arranged bottom boss are penetrated up and down along the direction of the central axis of the cylindrical body.

In one embodiment, a lower mounting wall is provided on the outer circumference of the cylindrical body between two adjacent bottom bosses.

In one embodiment, the interior of the columnar body penetrates up and down along the direction of its central axis, and the middle of the columnar body is provided with a central reinforcing rib extending along its central axis.

In one embodiment, the cross-section of the central reinforcing rib is annular, and the central reinforcing rib is connected to the inner side wall of the cylindrical body through a plurality of connecting ribs spaced apart from each other.

In one embodiment, reinforcing ribs extending along the direction of the central axis of the cylindrical body are distributed on the inner sidewall of the cylindrical body.

In one embodiment, the column has four top bosses and four bottom bosses, wherein the interior of each top boss and the corresponding opposite bottom boss are up and down through.

According to a ninth aspect of the present invention, there is provided a pallet comprising a top plate, a bottom plate and a plurality of uprights, wherein the top plate, the uprights and the bottom plate are connected in sequence from top to bottom, each of the uprights It has a columnar body, and the top outer periphery of the columnar body is provided with at least two top bosses protruding from the top surface of the columnar body, wherein the columnar body is provided with at least two top bosses inside the columnar body. A column mounting hole that penetrates up and down in the direction of the central axis of the column body.

In one embodiment, the back of the top plate is provided with a top plate positioning groove, and the top boss is operably inserted into the corresponding top plate positioning groove.

In one embodiment, the outer periphery of the top plate positioning groove is provided with a top plate groove, and the outer periphery of the top of the vertical column is provided with an upper mounting wall between two adjacent top bosses, and the mounting wall is operatively embedded in the roof groove.

In one embodiment, the front surface of the bottom plate is provided with a bottom plate positioning groove, the outer periphery of the bottom of the cylindrical body is provided with at least two bottom bosses protruding from the bottom surface of the cylindrical body, and the bottom bosses are operably inserted into The corresponding bottom plate positioning grooves.

In one embodiment, a bottom plate groove is provided on the outer periphery of the bottom plate positioning groove, and a lower mounting wall is provided on the outer periphery of the bottom of the column between two adjacent bottom bosses, and the lower mounting wall is operable ground into the bottom plate groove.

In one embodiment, the top plate is provided with a plurality of top plate mounting holes, and the bottom plate is provided with a plurality of bottom plate mounting holes; and the tray further includes a plurality of connecting pieces, wherein each of the connecting pieces passes through a corresponding one in sequence The top plate mounting hole, the upright column mounting hole and the bottom plate mounting hole are connected to the top plate, the upright column and the bottom plate in sequence.

In one embodiment, the top plate is formed by interconnecting an upper plate and a lower plate, a reinforcing member is provided between the upper plate of the top plate and the lower plate of the top plate, and the upper plate of the top plate and the top plate At least a part of the reinforcement between the lower plates is placed directly above the uprights.

In one embodiment, the bottom plate is formed by interconnecting an upper plate and a lower plate, a reinforcing member is also provided between the upper plate of the bottom plate and the lower plate of the bottom plate, and the upper plate of the bottom plate and the At least a portion of the reinforcement between the lower plates of the base plate is placed directly below the uprights.

In one embodiment, the reinforcing member is a steel pipe.

In one embodiment, the top plate is formed by interconnecting an upper plate and a lower plate, and at least one of the upper plate of the top plate and the lower plate of the top plate has a plurality of top plate protrusions distributed on the inner surface, at least a part of which is The top plate protrusions are sequentially connected together by convex ribs; and/or the bottom plate is formed by interconnecting an upper plate and a lower plate, and the inner surface of at least one of the upper plate of the bottom plate and the lower plate of the bottom plate is distributed with A plurality of reinforcing protrusions, wherein at least a part of the reinforcing protrusions are connected together in sequence through the ribs.

The pallet of the present application has the following advantages:

1. Combining the process structure advantages of injection molding and double-layer blister molding, the product not only has the characteristics of high strength of injection molding tray, but also has the characteristics of light weight, long life and low temperature resistance of hollow molding tray.

2. The tray is assembled and formed, which can be quickly installed and disassembled, and can be partially repaired.

3. The anti-skid performance is good, and the anti-skid belt is not easy to fall off.

4. Low cost.

Description of drawings

FIG. 1 is a perspective view of a tray according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the tray of FIG. 1 .

FIG. 3 is a perspective view of a top plate of the tray of FIG. 1 .

FIG. 3A is an enlarged view of part A in FIG. 3 .

FIG. 4 is an exploded perspective view of the top plate of FIG. 3 .

FIG. 4A is an enlarged view of part B in FIG. 4 .

FIG. 5 is a perspective view of the bottom plate of the tray of FIG. 1 .

FIG. 5A is an enlarged view of part C in FIG. 5 .

FIG. 6 is an exploded perspective view of the bottom plate of FIG. 5 .

FIG. 7 is a perspective view of distribution of steel pipes and uprights of the pallet of FIG. 1 .

FIG. 8 is a perspective view of a column of the tray of FIG. 1 .

FIG. 9 is a partial view of the tray of FIG. 1 , partially cut away to show the installation of the uprights.

10 is a perspective view of a main connector according to an embodiment of the present invention.

FIG. 11 is a front view of the main connector of FIG. 10 .

FIG. 12 is a partially cutaway side view of the main connector of FIG. 10 .

13 is a perspective view of an auxiliary connector according to an embodiment of the present invention.

FIG. 14 is a front view of the auxiliary connector of FIG. 13 .

FIG. 15 is a side view of the auxiliary connector of FIG. 13 .

16 is a partial front view of the tray of FIG. 1, cut along the central axis of the connector assembly.

17 is a partial perspective view of the tray of FIG. 1, partially cut away to illustrate the connection of the top plate, uprights, bottom plate, and connector assemblies.

detailed description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to more clearly understand the objects, features and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solutions of the present invention.

In the following description, for the purpose of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of these specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Unless the context requires otherwise, throughout the specification and claims, the word "comprising" and variations thereof, such as "comprising" and "having", should be construed in an open, inclusive sense, i.e., should be interpreted as "including, but not limited to".

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Additionally, the particular features, structures or characteristics may be combined in any manner in one or more embodiments.

As used in this specification and the appended claims, the singular forms "a" and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise.

In the following description, in order to clearly show the structure and working mode of the present invention, many directional words will be used for description, but "front", "rear", "left", "right", "outer", "inner" should be "," "outward", "inward", "up", "down" and other words are to be understood as convenient terms, and should not be understood as limiting words.

1 and 2 show a perspective view and an exploded view, respectively, of a tray according to an embodiment of the present invention. As shown in FIGS. 1 and 2 , the tray 1 includes a top plate 2 , a bottom plate 3 and a column 4 . One end of each column 4 is detachably connected to the top plate 2 , and the other end is detachably connected to the bottom plate 3 . Thereby, the top plate 2, the upright column 4 and the bottom plate 3 are sequentially connected from top to bottom to form a tray. Specifically, the tray 1 has a plurality of uprights 4 and a plurality of connecting pieces 5, and each connecting piece 5 passes through the top plate 2, the corresponding uprights 4 and the bottom plate 3 in sequence, thereby connecting the top plate 2, the uprights 4 and the bottom plate 3 together . In one embodiment, the top plate 2 may be provided with a plurality of top plate mounting holes 203 , and the bottom plate 3 may be provided with a plurality of bottom plate mounting holes 303 . Each column 4 is provided with a column mounting hole, wherein each connecting piece 5 sequentially connects the top plate 2 , the column 4 and the bottom plate 3 through the corresponding top plate mounting hole, column mounting hole and bottom plate mounting hole. In the embodiment shown in FIG. 1 and FIG. 2 , the tray 1 is provided with 9 uprights, which are arranged in 3 rows and 3 columns. Each of the uprights is connected with two connecting pieces 5 respectively. It should be understood that an appropriate number of uprights, such as 4, 5, 6, or 7 uprights, can be provided as required. Similarly, each column can also be connected with 1, 3, 4 or more connectors as required. Since the tray adopts the structure that the top plate, the bottom plate and the upright column are separately manufactured and then assembled together, when one of the components is damaged, for example, when the top plate or the bottom plate is damaged, it can be easily replaced.

FIGS. 3-3A and 4-4A show structural diagrams of the top plate 2 according to an embodiment of the present invention. As shown in FIGS. 3 to 4 , the top plate 2 has an upper plate 201 and a lower plate 202 which are connected to each other. Specifically, the upper plate of the top plate and the lower plate of the top plate may be connected to each other through a double-layer plastic blister process. Reinforcing members 204 are distributed inside the top plate 2 . The reinforcement 204 may be, for example, a steel pipe, an aluminum alloy pipe, or the like. It should be understood that in some occasions where the load bearing requirement is not very high, the reinforcement may not be provided. The upper plate 201 of the top plate is generally in the shape of a rectangular thin plate. The upper plate 201 of the top plate is the panel of the tray 1 . Cargo is usually placed on the upper plate of the top plate. The thickness of the upper plate 201 of the top plate is thinner than that of the lower plate 202 of the top plate. The upper plate 201 of the top plate is distributed with a plurality of through holes, a part of the through holes is used for the installation of the top plate, and the part of the through holes constitutes a part of the installation holes of the top plate.

More specifically, the upper plate 201 of the top plate has a base plate 2011 . The base plate 2011 has an anti-skid tape 2012 attached. Generally, a plurality of anti-skid strips 2012 spaced apart and parallel to each other are provided on the upper plate 201 of the top plate. Of course, the anti-skid strips 2012 may also intersect. The width of the anti-skid tape is 30mm-60mm, preferably 40mm-50mm. The anti-skid tape 2012 is at least partially embedded in the substrate 2011 and protrudes from the surface of the substrate 2011 . The height of the anti-skid tape protruding from the surface of the substrate is 0.5-3 mm, preferably 1-2 mm. Therefore, the part of the upper plate 201 of the top plate where the anti-skid belt 2012 is provided has an anti-skid layer, a mixed layer and a base material layer in order from top to bottom, wherein the base material layer is made of the first material, and the anti-slip layer is made of the second material become. The mixed layer is formed by mixing two different materials, the first material and the second material. Preferably, the mixed layer is formed by fusing the first material and the second material with each other. Thereby, the anti-skid tape can be firmly fixed on the base plate and will not fall off easily during use. Preferably, the hardness of the anti-skid layer is 65-75HS. In one embodiment, the thickness of the anti-skid layer is 1 mm˜4 mm, preferably 2 mm˜3 mm. The thickness of the mixed layer is 0.5 mm to 2 mm, preferably 1 mm to 1.5 mm. The first material may be selected from one of the following materials: PE, PET, PVC, PS and PMMA. The second material may be selected from one of the following materials: TPE, TPU, SBS, TPO and TPS.

Continuing to refer to FIGS. 3 and 4 , the lower surface 2021 of the lower plate 202 of the top plate 2 is provided with a top plate positioning groove 2022 . The lower plate 202 of the top plate is provided with at least three rows of top plate positioning grooves 2022 spaced apart from each other, and the number of each row of top plate positioning grooves is at least three. The four corners of the top plate are respectively provided with four top plate positioning grooves. The outer periphery of the top plate positioning groove 2022 is provided with a top plate groove 2023, and the mounting wall on the column 4 is operatively embedded in the top plate groove 2023, which will be further described below. The top outer periphery of the top plate positioning groove 2022 is provided with an annular protrusion 2024 protruding from the back surface of the top plate, that is, protruding from the lower surface of the lower plate 202 . The structure and shape of the top plate positioning groove 2022 match the structure and shape of the top boss of the column. In this embodiment, the upright column is provided with a plurality of top bosses spaced apart from each other, and correspondingly, the top plate positioning grooves are in the form of a plurality of grooves spaced apart from each other. The top boss is matched with the positioning groove of the top plate. The top plate mounting hole 203 passes through a part of the top plate positioning grooves. In this embodiment, two grooves in each top plate positioning groove are provided with top plate mounting holes. In another embodiment, each top plate positioning groove is provided with one, three or four top plate mounting holes 203 . The material of the lower plate of the top plate can be the same as that of the base plate of the upper plate, that is, the lower plate of the top plate can be made of the above-mentioned first material.

The upper surface 2025 of the lower plate 202 of the top plate 2 , that is, the surface 2025 of the lower plate 202 facing the interior of the top plate 2 , is provided with reinforcing protrusions 2026 . At least a part of the reinforcing protrusions 2026 are sequentially connected together by the ribs 2027 . The lower plate 202 of the top plate 2 is also arranged with a plurality of grooves 2028 for placing the reinforcements 204 . The plurality of grooves 2028 may be arranged in a grid. Preferably, at least a portion of the grooves 2028 are located above the positioning grooves 2022 of the top plate. Therefore, when the reinforcing member 204 is placed in this part of the groove 2022, the reinforcing member 204 is located directly above the upright column 4, as shown in FIG. 7 . Thereby, the static pressure bearing capacity of the tray can be increased.

When manufacturing the above-mentioned top plate 2, the upper plate of the top plate may be manufactured first. Then the upper plate of the top plate and the lower plate of the top plate are connected to each other through a double-layer blister process. During the double layer blister process, reinforcements such as steel pipes can be placed between the upper and lower plates of the top plate. Specifically, when manufacturing the upper plate 201 of the above-mentioned top plate, the following manufacturing method can be used, and the manufacturing method includes the steps of: while extruding the first material into a mold through the first extrusion equipment, through the second extrusion equipment extruding the second material to the die, so that the first material and the second material are at least partially mixed in the die in a molten state to form the upper plate of the top plate, and the material of a part of the surface of the upper plate of the top plate is the first material, The material of the other part of the surface is the second material, and the first material and the second material are two different materials. Here, the first extrusion equipment and the second extrusion equipment can adopt any suitable extrusion equipment existing or to be developed, which will not be described in detail here. The mold can be designed according to the shape and size of the upper plate of the top plate to be formed, which will not be described in detail here.

As shown in FIGS. 5 , 5A and 6 , the bottom plate 3 has an upper plate 301 and a lower plate 302 which are connected to each other. Specifically, the upper plate of the bottom plate and the lower plate of the bottom plate may be connected to each other through a double-layer blister process. Reinforcing members 304 are distributed inside the bottom plate 3 . The reinforcement 304 may be, for example, a steel pipe, an aluminum alloy pipe, or the like. It should be understood that in some occasions where the load bearing requirement is not very high, the reinforcement may not be provided.

The bottom plate 3 is composed of a plurality of arms 3010 arranged in a substantially square-shaped structure. Bottom plate positioning grooves 3012 are provided on the upper surface of the upper plate 301 of the bottom plate 3 . The upper plate 301 of the bottom plate is provided with three rows of bottom plate positioning grooves 3012 spaced apart from each other, and the number of each row of bottom plate positioning grooves is three. The base plate positioning grooves are respectively located at the intersections of the supporting arms.

The outer periphery of the base plate positioning groove 3012 is provided with a base plate groove 3013, and the mounting wall on the upright column 4 is operatively embedded in the base plate groove 3013, which will be further described below. The top outer periphery of the bottom plate positioning groove 3012 is provided with an annular protrusion 3014 protruding from the front surface of the bottom plate, that is, protruding from the upper surface of the upper plate 302 . The structure and shape of the bottom plate positioning groove 3012 match the structure and shape of the bottom boss of the column. In this embodiment, the column is provided with a plurality of bottom bosses spaced apart from each other, and correspondingly, the bottom plate positioning grooves are in the form of a plurality of grooves spaced apart from each other. The bottom boss of the upright column is matched with the positioning groove of the bottom plate. The bottom plate mounting hole 303 passes through a part of the bottom plate positioning groove. In this embodiment, two grooves in each bottom plate positioning groove are provided with bottom plate mounting holes. In another embodiment, each bottom plate positioning groove is provided with three or four bottom plate mounting holes 303 .

The upper surface 3025 of the lower plate 302 of the bottom plate 3 , that is, the surface 3025 of the lower plate 302 facing the inside of the bottom plate 3 , is provided with reinforcing protrusions 3026 . At least a part of the reinforcing protrusions 3026 are sequentially connected together by the ribs 3027 . The lower plate 302 of the base plate 3 is also arranged with a plurality of grooves 3028 for placing the reinforcements 304 . The plurality of grooves 3028 may be arranged in a grid, and at least a part of the grooves 3028 are located below the bottom plate positioning grooves 3022 . Therefore, when the reinforcing member 304 is placed in this part of the groove 3022, the reinforcing member 304 is located directly under the column 4, as shown in FIG. 7 . The material of the upper plate and the lower plate of the bottom plate can be the same as that of the base plate of the upper plate of the top plate, that is, the upper plate and the lower plate of the bottom plate can be made of the above-mentioned first material.

When manufacturing the above-mentioned base plate 3, the upper plate of the base plate and the lower plate of the base plate can be connected to each other through a double-layer plastic forming process. During the double layer blister process, reinforcements such as steel pipes can be placed between the upper and lower plates of the base plate.

As shown in FIGS. 7 and 8 , the column 4 has a cylindrical body 401 . The cylindrical body 401 is a hollow shell. The interior of the columnar body 401 penetrates up and down along the direction of its central axis, and a central reinforcing rib 402 extending along its central axis is disposed in the middle of the columnar body. The cross-section of the central reinforcing rib 402 is annular, and the central reinforcing rib is connected to the inner side wall of the columnar body 401 through a plurality of connecting ribs 403 spaced apart from each other. The inner sidewall of the cylindrical body is also distributed with reinforcing ribs 404 extending along the direction of its central axis.

The outer periphery of the top of the cylindrical body 401 is provided with four top bosses 405 protruding from the top surface of the cylindrical body, wherein the interior of the cylindrical body at at least two top bosses 405 penetrates up and down along the direction of the central axis of the cylindrical body, thereby forming a column Mounting holes 406. A reinforcing rib 4061 is provided on the inner side of the side wall defining the column mounting hole 406 . In another embodiment, two or three or more top bosses may be formed on the outer periphery of the top of the cylindrical body. The number of post mounting holes 406 may be 2, 3 or more. The outer circumference of the cylindrical body 401 is provided with an upper mounting wall 409 between two adjacent top bosses 402 . During installation, the upper installation wall 409 can be inserted into the top plate groove 2023 of the lower plate of the top plate.

The outer periphery of the bottom of the cylindrical body 401 is provided with four bottom bosses 407 protruding from the bottom surface of the cylindrical body, wherein the top bosses 405 and the bottom bosses 407 are arranged opposite each other, and the interior of the top boss and the corresponding opposite bottom bosses A column mounting hole 406 is formed by penetrating up and down the inside of the table along the central axis direction of the columnar body. In another embodiment, two or three or more bottom bosses may be formed on the outer periphery of the bottom of the cylindrical body. The number of post mounting holes 406 may be 2, 3 or more. The outer circumference of the cylindrical body 401 is provided with a lower mounting wall 408 between two adjacent bottom bosses 407. During installation, the lower installation wall 408 can be inserted into the bottom plate groove 3013 of the upper plate of the bottom plate. The uprights can be made of high-strength plastic and can be made by injection molding. Preferably, the top boss and the bottom boss have the same shape and structure. More preferably, all top bosses have the same structure and shape, and all bottom bosses have the same shape and structure.

As shown in FIGS. 10-17 , the connector 5 includes a main connector 501 and an auxiliary connector 502 . The main connector 501 passes through the top plate 2 , the column 4 and the bottom plate 3 sequentially along the first direction, and the auxiliary connector 502 at least partially passes through the bottom plate 3 along the second direction opposite to the first direction and is snap-connected to the main connector 501 . In this embodiment, as seen from the figure, the first direction is a direction from top to bottom, and the second direction is a direction from bottom to top.

As shown in FIGS. 10-12 , the main connector 51 has a rod-shaped body 5011 and a hook 5018 disposed at the bottom end of the rod-shaped body. A hollow channel 5001 extending along the central axis of the rod-shaped body is provided inside the rod-shaped body of the main connector. A first limiting platform 5015 is formed on the side wall 5014 defining the hollow channel 5001 . The first limiting platform 5015 protrudes radially inwardly relative to the side wall 5014 . The second stop on the auxiliary connector is operatively abutted against the first stop 5015, which will be further described below. A mouth stop 5016 is further provided above the first limiting platform in the hollow channel of the main connecting piece, which is matched with the barbs on the auxiliary connecting piece, and the barbs operably hook the mouth stop platform. The top end of the main connector 501 is provided with a cap 5013, and the diameter of the cap 5013 is larger than that of the rod-shaped body. A drain port 5019 is provided on the bottom end side wall of the rod-shaped main body of the main connector 51, and the drain port communicates with the hollow channel 5001 and leads to the outside. The hollow channel 5001 runs through the rod-shaped body and cap 5013 of the entire main connector. The bottom end of the main connecting member 51 also has two support arms 5017 separated from each other, and the outer side of each support arm 5017 is provided with a hook 5018 . The hook 5018 can hook the corresponding structure of the bottom plate, which will be further described below. The main connector is made of plastic. Preferably, the main connector is made of plastic with fiberglass added.

As shown in FIGS. 13-15 , the auxiliary connector 502 has a rod-shaped body 5021 . A dismounting groove 5023 is provided on the side wall 5022 of the rod-shaped main body 5021 of the auxiliary connector 502 . The removal slot 5023 is used for a tool such as a screwdriver to enter to remove the auxiliary connector. The outer wall of the rod-shaped main body of the auxiliary connecting piece 502 is provided with a second limiting platform 5024 , wherein the second limiting platform 5024 is operatively abutted against the first limiting platform of the main connecting piece. In this way, the insertion depth of the auxiliary connector 502 can be limited, and the auxiliary connector can be prevented from being inserted too deep and difficult to be removed. The auxiliary connector 502 is also provided with barbs 5025. The barb 5025 is between the second stop 5024 and one end 5026 of the auxiliary connector. Barbs 5025 operably engage stop 5016. Thus, the auxiliary connector 502 can be fixedly connected to the main connector. The auxiliary connector is made of plastic. Preferably, the auxiliary connector is made of plastic with fiberglass added.

When assembling, firstly, stack the top plate, upright column and bottom together from top to bottom. Then, the connectors pass through the corresponding top plate mounting holes, upright column mounting holes and bottom plate mounting holes in sequence to connect the top plate 2 , the upright columns 4 and the bottom plate 3 in sequence. After the assembly is completed, the connecting member 5 is located substantially inside the tray, and thus, is not easily damaged.

When a part is damaged and needs to be replaced, the connecting parts can be removed in turn, the top plate, the column and the bottom plate can be separated, and the damaged parts can be replaced, and then assembled in the above manner. Therefore, the tray of the present application is easy to assemble, can be quickly installed and disassembled, and is easy to maintain.

The preferred embodiments of the present invention have been described in detail above, but it is to be understood that aspects of the embodiments can be modified, if desired, to employ aspects, features and concepts of various patents, applications and publications to provide additional embodiments.

These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed as limiting to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments, along with all equivalents to which these claims are entitled Scope.

Claims

A tray, characterized in that the tray comprises:

roof;

the bottom plate; and

a column, the top plate, the column and the bottom plate are connected in sequence from top to bottom; wherein

The top panel has upper and lower panels connected to each other, and/or the bottom panel has upper and lower panels connected to each other.
The tray according to claim 1, wherein the tray has a plurality of uprights, one end of each of the uprights is detachably connected to the top plate, and the other end is detachably connected to the bottom plate.
The tray according to claim 1, wherein the top plate is provided with a plurality of top plate mounting holes, the bottom plate is provided with a plurality of bottom plate mounting holes, the tray is provided with a plurality of uprights, each of the uprights is provided with a column mounting hole; and the tray further includes a plurality of connecting pieces, wherein each of the connecting pieces sequentially passes through the corresponding top plate mounting hole, the column mounting hole and the bottom plate mounting hole to connect the top plate , the upright column and the bottom plate are connected in sequence.
The pallet according to claim 1, wherein when the top plate has an upper plate and a lower plate connected to each other, a reinforcing member is provided between the upper plate of the top plate and the lower plate of the top plate.
The pallet according to claim 4, wherein at least a part of the reinforcing member between the upper plate of the top plate and the lower plate of the top plate is placed directly above the column.
The pallet according to claim 4, wherein the reinforcing member between the upper plate of the top plate and the lower plate of the top plate is a steel pipe.
The pallet according to claim 1, wherein when the top plate has an upper plate and a lower plate connected to each other, the inner surface of at least one of the upper plate of the top plate and the lower plate of the top plate is distributed with a plurality of There are several top plate protrusions, wherein at least a part of the top plate protrusions are sequentially connected together by the ribs.
The pallet according to claim 1, wherein when the bottom plate has an upper plate of the bottom plate and a lower plate of the bottom plate that are connected to each other, a reinforcement is provided between the upper plate of the bottom plate and the lower plate of the bottom plate pieces.
The pallet according to claim 8, wherein at least a part of the reinforcing member between the upper plate of the bottom plate and the lower plate of the bottom plate is placed directly below the upright column.
The pallet according to claim 8, wherein the reinforcing member between the upper plate of the bottom plate and the lower plate of the bottom plate is a steel pipe.
The pallet according to claim 1, wherein when the bottom plate has an upper plate and a lower plate connected to each other, the inner surface of at least one of the upper plate of the bottom plate and the lower plate of the bottom plate is distributed with a plurality of a plurality of reinforcing protrusions, wherein at least a part of the reinforcing protrusions are sequentially connected together by the ribs.
The tray according to claim 1, characterized in that, the top plate and/or the bottom plate are made by a double-layer blister process.
The tray according to claim 3, wherein a top plate positioning groove is disposed on the back of the top plate, the top plate mounting hole is disposed at the top plate positioning groove, and a top protrusion is disposed at the top of the column. The top boss is matched with the corresponding positioning groove of the top plate.
The pallet according to claim 13, wherein a top plate groove is provided on the outer periphery of the top plate positioning groove, and an upper mounting wall is provided on the outer periphery of the top of the column, and the mounting wall is operably embedded in the top plate groove.
The tray according to claim 13, wherein the top outer periphery of the top plate positioning groove is provided with an annular protrusion protruding from the back of the top plate.
The pallet according to claim 13, wherein the top plate is provided with at least three rows of the top plate positioning grooves spaced apart from each other, and the number of the top plate positioning grooves in each row is at least three.
The pallet according to claim 13, wherein the four top plate positioning grooves are respectively provided at four corners of the top plate, and each of the top plate positioning grooves is provided with at least two top plate mounting holes .
The tray according to claim 3, wherein a bottom plate positioning groove is provided on the front surface of the bottom plate, the bottom plate mounting hole is provided at the bottom plate positioning groove, and the bottom end of the vertical column is provided with a bottom plate A boss, the bottom boss is matched with the corresponding bottom plate positioning groove.
The pallet according to claim 18, wherein a bottom plate groove is provided on the outer periphery of the bottom plate positioning groove, and a lower mounting wall is provided on the outer periphery of the bottom of the column, and the lower mounting wall is operably embedded in the bottom plate. Bottom groove.
The tray according to claim 18, wherein the outer periphery of the top of the bottom plate positioning groove is provided with an annular protrusion protruding from the front surface of the bottom plate.
The pallet according to claim 18, wherein the bottom plate is provided with at least three rows of the bottom plate positioning grooves spaced apart from each other, and the number of the bottom plate positioning grooves in each row is at least three.
The tray according to claim 18, wherein the four bottom plate positioning grooves are respectively provided at four corners of the bottom plate, and each of the bottom plate positioning grooves is provided with at least two bottom plate mounting holes .
The pallet of claim 1, wherein the top plate, the uprights and the bottom plate are detachably connected to each other.
The pallet according to claim 1, wherein a plurality of anti-skid strips are arranged on the front surface of the top plate, and the anti-skid strips are made of TPE, TPU, SBS, TPO or TPS material.
The pallet according to claim 1, wherein a plurality of anti-skid strips are provided on the front of the top plate, and the anti-skid strips are 0.5 mm to 3 mm higher than the front of the top plate.
The pallet according to claim 1, wherein a plurality of anti-skid strips are provided on the front surface of the top plate, and the anti-skid strips are 1 mm to 2 mm higher than the front surface of the top plate.
The pallet according to claim 3, wherein the connecting member comprises a main connecting member and an auxiliary connecting member, wherein the main connecting member passes through the top plate, the upright column and the bottom plate in sequence along the first direction , the auxiliary connecting piece at least partially passes through the bottom plate along a second direction opposite to the first direction and is snap-connected to the main connecting piece.
A tray, characterized in that the tray comprises:

roof;

the bottom plate; and

a column, the top plate, the column and the bottom plate are connected in sequence from top to bottom; wherein

The top plate and/or the bottom plate are made by a double-layer blister process.