CN219447645U

CN219447645U - Tray and automatic transportation equipment

Info

Publication number: CN219447645U
Application number: CN202320675163.4U
Authority: CN
Inventors: 周标; 樊续文; 田文胜
Original assignee: Sany Heavy Machinery Ltd
Current assignee: Sany Heavy Machinery Ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-08-01
Anticipated expiration: 2033-03-30

Abstract

The utility model relates to the technical field of conveying devices, and provides a tray and automatic conveying equipment, wherein the tray comprises a lower tray and an upper tray, the lower tray is provided with a planar bearing surface, and a first avoidance space for a conveying part to enter and exit is arranged below the bearing surface; the upper tray comprises a tray body and supporting parts for supporting the goods shelves, the tray body is detachably arranged above the lower tray, the supporting parts are arranged above the tray body, at least two supporting parts are arranged, the supporting parts are distributed at intervals, and a second avoidance space which can be used for the fork taking parts to enter and exit is formed between the adjacent supporting parts. So set up, solved the tray of automatic guided vehicle among the prior art and not allowed to utilize fork truck to carry the goods shelves of the jumbo size that does not set up special fork hole to the problem of tray top.

Description

Tray and automatic transportation equipment

Technical Field

The utility model relates to the technical field of conveying devices, in particular to a tray and automatic conveying equipment.

Background

An automatic guided vehicle (AGV for short), also called an automatic guided vehicle or an automatic guided vehicle, is an industrial vehicle that loads goods automatically or manually, automatically travels or pulls a cargo truck to a designated place according to a set route, and loads and unloads the goods automatically or manually. The automatic guiding vehicle is provided with a tray for bearing, and the goods shelves are manually forked by a forklift and placed on the tray of the automatic guiding vehicle.

In the prior art, some shelves are provided with a fork hole which is specially used for a fork arm of a forklift to extend into, and some shelves are not provided with a special fork hole. The supporting surface of the tray of the automatic guiding vehicle is generally a plane plate, and for the goods shelf provided with the special fork taking holes, the goods shelf is moved to the upper part of the automatic guiding vehicle by using a forklift, and after the supporting legs of the goods shelf are supported on the tray of the automatic guiding vehicle, the fork arms of the forklift can be smoothly retracted. And to not setting up special fork and getting the hole, and the size of goods shelves is greater than the size of automatic guided vehicle's tray, the landing leg of goods shelves can't support on automatic guided vehicle's tray, if utilize fork truck to place the goods shelves in automatic guided vehicle's tray, the bearing face of goods shelves compresses tightly fork truck's yoke on automatic guided vehicle's tray, leads to the fork truck's yoke unable follow goods shelves and automatic guided vehicle's tray between to take out. For the goods shelves that do not set up special fork and get hole and the size is greater than the tray size of automatic guided vehicle, must use hoisting equipment just can place on the tray of automatic guided vehicle, the kind requirement on the transfer equipment of production scene is higher.

Therefore, how to solve the problem that the pallet of the automatic guided vehicle in the prior art does not allow a large-sized pallet without a special fork hole to be carried above the pallet by using a forklift becomes an important technical problem to be solved by those skilled in the art.

Disclosure of Invention

The utility model provides a pallet and automatic conveying equipment, which are used for solving the defect that a pallet of an automatic guide vehicle in the prior art does not allow a forklift to be used for conveying a large-size goods shelf without special forking holes to the upper part of the pallet.

The present utility model provides a tray comprising:

the lower tray is provided with a planar bearing surface, and a first avoidance space for the transport part to enter and exit is arranged below the bearing surface;

the upper tray comprises a tray body and supporting parts for supporting a goods shelf, wherein the tray body is detachably arranged above the lower tray, the supporting parts are arranged above the tray body, at least two supporting parts are arranged, the supporting parts are distributed at intervals, and a second avoidance space which can be used for the fork parts to enter and exit is formed between the adjacent supporting parts.

According to the tray provided by the utility model, the upper tray further comprises:

the mounting seats are arranged on the tray body, the plurality of mounting seats are arranged in groups, the adjacent two groups of mounting seats are provided with intervals, each supporting part corresponds to one group of mounting seats, and the supporting parts are detachably connected with the mounting seats.

According to the tray provided by the utility model, the mounting seat comprises:

the cushion block is used for supporting the supporting part and is arranged on the upper surface of the tray body;

the limiting support is arranged on the upper surface of the tray body and can limit the displacement of the supporting part and the cushion block relative to the tray body.

According to the tray provided by the utility model, the supporting parts are of columnar structures, extend along the longitudinal direction of the tray body, and are distributed along the transverse direction of the tray body;

the limit bracket includes:

the first limiting piece is used for limiting the support part to move relative to the tray body along the longitudinal direction of the tray body;

and the second limiting piece is used for limiting the support part to move along the transverse direction of the tray body relative to the tray body.

According to the tray provided by the utility model, each mounting seat comprises at least two cushion blocks, the height sizes of the cushion blocks of each mounting seat are different, and any cushion block can be arranged on the tray body.

According to the pallet provided by the utility model, each mounting seat comprises at least two cushion blocks, the height of each cushion block is the same, and the cushion blocks can be selectively stacked together.

the storage rack is used for storing the supporting part and is fixedly arranged on one side of the tray body.

According to the tray provided by the utility model, the surface of the supporting part is provided with the anti-slip layer, and the anti-slip layer is arranged to increase the friction between the supporting part and the goods shelf.

According to the tray provided by the utility model, the upper tray is provided with the limiting component, and the limiting component is arranged to limit the relative displacement of the upper tray and the lower tray.

The utility model also provides automatic conveying equipment, which comprises the tray.

The tray comprises an upper tray and a lower tray, wherein the lower tray is provided with a bearing surface for supporting a goods shelf, and a first avoidance space is arranged below the bearing surface and used for a transport part to enter and exit. The transport portion enters the first avoidance space, the lower tray can be lifted upwards through the lifting mechanism of the transport portion, and the lower tray is completely supported on the transport portion and is displaced along with displacement of the transport portion. After the goods shelf is transported to the target position, the lower tray is lowered through the lifting mechanism of the transporting part, the lower tray is supported on the ground, the lifting mechanism is separated from the lower tray, and the transporting part can leave. The bearing surface of lower tray is planar, can support small-size goods shelves or be provided with special fork and get the jumbo size goods shelves of hole. The upper tray comprises a tray body and a supporting part, and the supporting part is arranged above the tray body. The support part is provided with at least two, utilizes each support part to support the goods shelves. Each supporting part interval distribution forms the second between the adjacent supporting part and dodges the space, and the second dodges the space and can supply fork to get the portion business turn over, when the transportation does not set up the jumbo size goods shelves of special fork hole of getting, utilize fork to get the portion fork and get the jumbo size goods shelves to move to the top of tray body, make fork to get the portion and the second dodge the space and correspond, when placing the jumbo size goods shelves on the supporting part, fork to get the portion and just in time be located the second and dodge the space, it can be followed and take out between goods shelves and the tray, thereby the completion is to the loading and the transportation of the jumbo size goods shelves that do not set up special fork and get the hole. When the upper tray is arranged in such a way that only a small-size goods shelf or a large-size goods shelf with special forking holes is required to be supported and transported, the upper tray is detached, and the transportation task can be completed only by using the lower tray; when the large-size goods shelves without special forking holes are required to be supported and transported, the upper tray is arranged above the lower tray, and the supporting part of the upper tray is utilized for supporting, so that the forking part can be ensured to be smoothly pulled out. The tray provided by the utility model can not only support and transport a small-size goods shelf or a large-size goods shelf provided with a special forking hole, but also support and transport a large-size goods shelf without the special forking hole, has strong universality, and solves the problem that the tray of the automatic guide vehicle in the prior art does not allow the large-size goods shelf without the special forking hole to be transported to the upper part of the tray by using a forklift.

Further, in the automatic transportation device provided by the utility model, the tray is provided, so that various advantages are provided as described above.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a tray provided by the present utility model when a supporting portion is disposed on a mounting seat;

fig. 2 is a schematic structural view of the tray provided by the utility model when the supporting part is arranged on the storage rack;

FIG. 3 is a schematic view of the structure of the lower tray provided by the present utility model;

FIG. 4 is a schematic view of the structure of the upper tray provided by the present utility model;

FIG. 5 is an enlarged view of I in FIG. 4;

FIG. 6 is a schematic view of the structure of the pallet provided by the present utility model when supporting a large-sized pallet without specialized fork holes;

FIG. 7 is a front view of a pallet provided by the present utility model supporting a large size pallet without specialized fork apertures;

FIG. 8 is a schematic view of a first embodiment of a pallet according to the present utility model when the upper pallet is used to support a small-sized pallet;

FIG. 9 is a front view of a pallet provided by the present utility model when supporting a small-sized pallet with an upper pallet;

FIG. 10 is a schematic view of the structure of the pallet provided by the present utility model when the lower pallet is used to support a small-sized pallet;

FIG. 11 is a front view of a pallet provided by the present utility model when a small-sized pallet is supported by a lower pallet;

FIG. 12 is a schematic view of the structure of a pallet without dedicated forking holes provided by the present utility model;

fig. 13 is a schematic structural view of a pallet provided with dedicated forking holes according to the present utility model.

Reference numerals:

1. a lower tray; 2. a bearing surface; 3. a first avoidance space; 4. an upper tray; 5. a tray body; 6. a goods shelf; 7. a support part; 8. a second avoidance space; 9. a mounting base; 10. a cushion block; 11. a first limiting plate; 12. a second limiting plate; 13. a bracket; 14. a third limiting plate; 15. a fourth limiting plate; 16. a transport section; 17. and (5) forking the holes.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The tray of the present utility model is described below with reference to fig. 1 to 13.

As shown in fig. 1 to 13, the tray provided by the embodiment of the present utility model includes an upper tray 4 and a lower tray 1.

Specifically, the lower tray 1 has a support surface 2 for supporting the shelf 6, and a first escape space 3 is provided below the support surface 2 for the transport unit 16 to enter and exit.

The transport portion 16 may be, but is not limited to, an automated guided vehicle.

The transport portion 16 enters the first avoidance space 3, and the lower tray 1 can be lifted upwards by the lifting mechanism of the transport portion 16 itself, and the lower tray 1 is fully supported on the transport portion 16 and is displaced along with the displacement of the transport portion 16. After the pallet 6 is transported to the target position, the lower tray 1 is lowered by the lifting mechanism of the transport unit 16 itself, and the transport unit 16 can be separated from the lower tray 1 until the lower tray 1 is supported on the ground.

The support surface 2 of the lower tray 1 is planar, and can support a small-sized pallet 6 or a large-sized pallet 6 provided with a dedicated fork hole 17, as shown in fig. 10 and 11.

In the present embodiment, the shape of the supporting surface 2 of the lower tray 1 and the upper tray 4 is not particularly limited, and for convenience of explanation, the following description will be given by taking the rectangular supporting surface 2 of the lower tray 1 and the upper tray 4 as an example. The shelves 6 are generally cube-shaped with a rectangular cross section, and both the small size of the shelves 6 and the large size of the shelves 6 in this embodiment are relative to the size of the tray. The small-sized pallet 6 is a pallet 6 having a cross-sectional length dimension smaller than one of the lateral and longitudinal dimensions of the pallet and a cross-sectional width dimension smaller than the other of the lateral and longitudinal dimensions of the pallet. The large-sized pallet 6 is a pallet 6 having a cross-sectional length dimension larger than any one of the lateral dimension and the longitudinal dimension of the pallet.

The structure of the shelf 6 without the special fork holes 17 is shown in fig. 12, the supporting surface 2 of the shelf 6 is supported off the ground by the support legs, and the space below the supporting surface 2 of the shelf 6 can be used for the fork parts to go in and out. The structure of the pallet 6 provided with the dedicated forking holes 17 is shown in fig. 13, the forking holes 17 being located below the supporting surface 2 of the pallet 6.

The upper tray 4 includes a tray body 5 and a supporting portion 7, and the supporting portion 7 is disposed above the tray body 5. At least two support portions 7 are provided, and each support portion 7 can support the shelf 6. Each supporting part 7 is distributed at intervals, a second avoiding space 8 is formed between every two adjacent supporting parts 7, and the second avoiding space 8 can be used for the fork taking part to enter and exit. The fork may be a fork arm of a forklift.

Referring to fig. 6 and 7, when the large-sized pallet 6 without the dedicated fork hole 17 is required to be transported, the large-sized pallet 6 is fork-moved to the upper side of the pallet body 5 by the fork-moving part, so that the fork-moving part corresponds to the second avoidance space 8, and when the large-sized pallet 6 is placed on the supporting part 7, the fork-moving part can be just positioned in the second avoidance space 8 and can be pulled out from between the pallet 6 and the pallet, thereby completing the carrying and transportation of the large-sized pallet 6 without the dedicated fork hole 17.

When only the small-sized goods shelves 6 or the large-sized goods shelves 6 provided with the special fork holes 17 are required to be supported and transported, the upper tray 4 is detached, and the transportation task can be completed only by using the lower tray 1; when it is necessary to support and transport a large-sized pallet 6 without a special fork hole 17, the upper tray 4 is mounted above the lower tray 1, and the fork can be smoothly pulled out by supporting the upper tray 4 with the supporting portion 7. The tray provided by the utility model can not only support and transport a small-sized goods shelf 6 or a large-sized goods shelf 6 provided with a special forking hole 17, but also support and transport a large-sized goods shelf 6 without the special forking hole 17, has strong universality, and solves the problem that the tray of an automatic guide vehicle in the prior art does not allow the large-sized goods shelf without the special forking hole to be transported to the upper part of the tray by using a forklift.

In the embodiment of the utility model, the upper tray 4 further comprises a mounting seat 9, and the mounting seat 9 is arranged on the upper surface of the tray body 5. The mount pad 9 is provided with a plurality of, and a plurality of mount pads 9 set up in groups, have the interval between two adjacent groups of mount pads 9. Each supporting portion 7 corresponds to a group of mounting seats 9, each group of mounting seats 9 comprises at least two mounting seats 9 which are distributed at intervals, and the same supporting portion 7 is supported by the at least two mounting seats 9, so that stability of the supporting portion 7 can be ensured.

The supporting part 7 can be detachably connected with the mounting seat 9, the supporting part 7 is arranged into a detachable structural form, when the small-sized goods shelf 6 without the special forking holes 17 is required to be transported, and the supporting leg height of the goods shelf 6 is larger than the height of the mounting seat 9, the supporting part 7 can be detached, the goods shelf 6 is directly placed on the tray body 5 of the upper tray 4, and referring to fig. 8 and 9, the detachment of the upper tray 4 is avoided, the use is convenient, and the universality of the tray is further enhanced.

In this embodiment, the mounting base 9 includes a pad 10 and a limiting bracket.

The cushion block 10 is disposed on the upper surface of the tray body 5, and is used for supporting the supporting portion 7. The spacing brace sets up the upper surface that sets up tray body 5 for the displacement of restriction supporting part 7 and cushion 10 for tray body 5 ensures the stability of cushion 10 and supporting part 7, thereby ensures the stability of goods shelves 6.

Each support portion 7 is provided in a columnar structure such that the support portion 7 extends in the longitudinal direction Y of the tray body 5, and such that the respective support portions 7 are distributed in the lateral direction X of the tray body 5. Correspondingly, the plurality of sets of mounting seats 9 are distributed along the transverse direction X of the tray body 5, the respective mounting seats 9 of each set being distributed along the longitudinal direction Y of the tray body 5. As shown in fig. 1, four supporting portions 7 are provided on the tray body 5, four sets of mounting seats 9 are provided on the tray body 5, each set includes three mounting seats 9, and the same supporting portion 7 is simultaneously supported by the three mounting seats 9.

The limiting bracket comprises a first limiting piece and a second limiting piece, wherein the first limiting piece is used for limiting the supporting part 7 and the cushion block 10 to move relative to the tray body 5 along the longitudinal direction Y of the tray body 5, and the second limiting piece is used for limiting the supporting part 7 and the cushion block 10 to move relative to the tray body 5 along the transverse direction X of the tray body 5.

Specifically, the first limiting member includes a first limiting plate 11, and the first limiting plate 11 is perpendicular to the longitudinal direction Y of the tray body 5. The two mounting seats 9 are respectively and correspondingly arranged below the two ends of the supporting part 7, the first limiting plates 11 of the two mounting seats 9 are respectively positioned on one far side of the cushion block 10 of the two mounting seats 9, when the supporting part 7 is supported on the cushion block 10, the supporting part 7 is positioned between the first limiting plates 11 of the two mounting seats 9, and the supporting part 7 can be limited to displace relative to the tray body 5 along the longitudinal direction Y of the tray body 5 through the interaction between the two ends of the supporting part 7 and the first limiting plates 11 of the two mounting seats 9.

The second limiting piece comprises two second limiting plates 12, and the two second limiting plates 12 are distributed at intervals along the transverse direction X of the tray body 5. The second limiting plate 12 and the first limiting plate 11 may be fixedly connected together. The supporting portion 7 is located between the two second limiting plates 12, and displacement of the supporting portion 7 relative to the tray body 5 in the lateral direction X of the tray body 5 can be restricted by interaction of the supporting portion 7 with the two second limiting plates 12.

The second limiting plates 12 and the first limiting plates 11 can be connected together, the cushion block 10 is placed between the two second limiting plates 12, and the cushion block 10 can be limited by the aid of the first limiting plates 11 and the second limiting plates 12.

It should be noted that, when each set of mounting seats 9 includes two mounting seats 9, the two mounting seats 9 are respectively corresponding to two ends of the supporting portion 7, and at this time, the limiting bracket of each mounting seat 9 needs to include a first limiting member and a second limiting member at the same time. When each group of mounting seats 9 comprises three or more mounting seats 9, the limiting brackets of the mounting seats 9 positioned at two ends need to simultaneously comprise a first limiting piece and a second limiting piece, and the limiting brackets of the mounting seats 9 positioned in the middle can only comprise the second limiting piece.

The tray body 5 includes a frame and a support plate, which is located above the frame. The frame comprises a cross beam and a longitudinal beam, and the cross beam and the longitudinal beam are fixed together in a crossed manner. The first limiting plate 11 and the second limiting plate 12 can penetrate through the supporting plate and then are fixed on the cross beam and the longitudinal beam, so that the connection strength of the limiting support and the tray body 5 is ensured.

Some small-sized pallets 6, which are not provided with special fork holes 17, have small heights of the legs, and in order to ensure that the small-sized pallets 6 can be placed on the upper tray 4, it is necessary to make the heights of the mounting seats 9 of the upper tray 4 small. However, when the upper tray 4 is used to support the large-sized pallet 6 without the special fork holes 17, the height of the second escape space 8 is ensured.

In order to improve the versatility of the pallet, in a further embodiment, the spacer 10 may be provided in a height-adjustable form, and the supporting height of the supporting portion 7 may be adjusted by adjusting the height of the spacer 10.

In some embodiments, each mounting seat 9 includes at least two pads 10, and each pad 10 of each mounting seat 9 has a different height dimension, and any pad 10 can be disposed on the tray body 5. By changing different pads 10, the support height of the support 7 can be adjusted.

In other embodiments, each mounting seat 9 includes at least two blocks 10, each block 10 having the same height dimension, and each block 10 being capable of being selectively stacked together. By adjusting the number of the spacers 10 stacked together, the supporting height of the supporting portion 7 can be adjusted.

It should be noted that, in order to ensure stability of the relative position between the pad 10 and the mount 9 and stability of the relative position between the pad 10 and the tray body 5, after the corresponding pad 10 is selected, the pad 10 and the mount 9 are fixedly connected together by using bolts or the pad 10 and the tray body 5 are fixedly connected together by using bolts.

In the embodiment of the present utility model, the upper tray 4 further includes a storage rack fixedly disposed on one side of the tray body 5, and when the support portion 7 is detached from the mounting seat 9, the support portion 7 can be placed on the storage rack, and the support portion 7 is stored by the storage rack, so as to prevent the loss of the support portion 7.

Can set up the bearing face of tray body 5 into the rectangle, set up four supporting parts 7, all set up corresponding storage rack at four sides of tray body 5, pull down the back from mount pad 9 with supporting part 7, place respectively in the inside of different storage racks.

The storage rack comprises two brackets 13, and the two brackets 13 are distributed at intervals and used for supporting two ends of the supporting part 7. As shown in fig. 1, the bracket 13 is provided with a baffle plate on the side of the two brackets 13 away from each other and the side of the bracket 13 away from the tray body 5, so as to limit the position dislocation of the supporting part 7 and ensure the stability of the supporting part 7.

When the shelf 6 is supported by the support portion 7 of the upper tray 4, in order to prevent the problem of unexpected sliding between the shelf 6 and the support portion 7, the stability of the shelf 6 is ensured, an anti-slip layer is provided on the surface of the support portion 7, and the friction between the support portion 7 and the shelf 6 is increased by the anti-slip layer.

Specifically, the above-mentioned anti-slip layer may be, but is not limited to, a rubber layer or a silica gel layer.

The cross section of the support portion 7 is rectangular, and an anti-slip layer may be provided only on one side surface of the support portion 7, and when the support portion 7 is placed on the mount 9, the anti-slip layer may be provided on the upper surface of the support portion 7.

In this embodiment, a limiting component is further disposed on the upper tray 4, and the limiting component is used to limit the relative displacement between the upper tray 4 and the lower tray 1, so as to avoid the problem of unexpected sliding between the upper tray 4 and the lower tray 1, and ensure the stability of the upper tray 4.

The limiting assembly comprises a third limiting plate 14 and a fourth limiting plate 15, the third limiting plate 14 and the fourth limiting plate 15 are located below the tray body 5, and the upper end of the third limiting plate 14 and the upper end of the fourth limiting plate 15 are fixedly connected with the tray body 5.

The third limiting plates 14 are arranged in pairs, and each pair of third limiting plates 14 are parallel to each other and are distributed at intervals along the longitudinal direction Y of the tray body 5. The third limiting plates 14 are provided with at least two pairs, and each pair of third limiting plates 14 is distributed at intervals along the transverse direction X of the tray body 5.

The fourth limiting plates 15 are arranged in pairs, and each pair of fourth limiting plates 15 are parallel to each other and are distributed at intervals along the transverse direction X of the tray body 5. The fourth limiting plates 15 are provided with at least two pairs, and each pair of fourth limiting plates 15 is distributed at intervals along the longitudinal direction Y of the tray body 5.

After the upper tray 4 is arranged above the lower tray 1, the lower tray 1 is positioned between each pair of third limiting plates 14 and between each pair of fourth limiting plates 15, and the relative displacement of the upper tray 4 and the lower tray 1 along the bearing surface 2 of the lower tray 1 can be limited through the interaction between the third limiting plates 14 and the lower tray 1 and the interaction between the fourth limiting plates 15 and the lower tray 1.

On the other hand, the embodiment of the utility model also provides automatic conveying equipment, which comprises the tray provided by any embodiment. The tray can not only meet the requirements of supporting and transporting the small-size goods shelves 6 or the large-size goods shelves 6 provided with the special forking holes 17, but also meet the requirements of supporting and transporting the large-size goods shelves 6 without the special forking holes 17, and has strong universality. Therefore, the automatic transportation device in the embodiment also has the advantage of strong versatility. The development process of the beneficial effects of the automatic transportation device in the embodiment of the present utility model is substantially similar to that of the tray described above, and therefore will not be described here again.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A tray, comprising:

2. The tray of claim 1, wherein the upper tray further comprises:

3. The tray of claim 2, wherein the mount comprises:

4. A pallet as claimed in claim 3, wherein the support portions are of a columnar structure, the support portions extending in a longitudinal direction of the pallet body, each of the support portions being distributed in a transverse direction of the pallet body;

the limit bracket includes:

the first limiting piece is used for limiting the supporting part and the cushion block to move relative to the tray body along the longitudinal direction of the tray body;

and the second limiting piece is used for limiting the supporting part and the cushion block to move along the transverse direction of the tray body relative to the tray body.

5. A pallet as claimed in claim 3 wherein each said mounting base includes at least two said blocks, the height dimension of each said block of each said mounting base being different, any one of said blocks being capable of being disposed on said pallet body.

6. A pallet according to claim 3, wherein each of said mounting blocks comprises at least two of said blocks, each of said blocks having the same height dimension, said blocks being selectively stackable together.

7. The tray of any one of claims 2-6, wherein the upper tray further comprises:

8. A pallet as claimed in any one of claims 1-6, characterised in that the surface of the support part is provided with a non-slip layer arranged to increase the friction between the support part and the pallet.

9. The tray of claim 1, wherein the upper tray is provided with a stop assembly configured to limit relative displacement of the upper tray and the lower tray.

10. An automated transportation apparatus comprising a pallet according to any one of claims 1 to 9.