PALLET AND PACKAGING CASE

Abstract

A pallet set has a first assembling pallet and a second assembling pallet. The first assembling pallet has a first pallet top, a first pallet bottom and a first pallet outside wall defined between the first pallet top and the first pallet bottom; the first pallet top has at least one first barrier. The second assembling pallet has a second pallet top, a second pallet bottom and a second pallet outside wall defined between the second pallet top and the second pallet bottom; the second pallet top has at least one second barrier. When the first assembling pallet is assembled with the second assembling pallet, the first pallet outside wall is attached securely to the second pallet outside wall. Implementing the pallet set is able to have the packaging box adapted for large size and having assembling function, packaging function and loading function. Further, the packaging cost can be reduced.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to display technical field, especially to a pallet and a packaging case.

2. Description of Related Art

With the appearance and development of all kinds of liquid crystal product, the liquid crystal displays are widely used in all trades and professions, and every corner of the modern life. In a liquid crystal display, a liquid crystal panel is its key component. When manufacturing the liquid crystal displays, due to division of work, a mass of the liquid crystal panels are transported to other place to be further processed modularly.

In prior art, packaging boxes made of foam materials are usually used to package and protect the liquid crystal panel. The packaging boxes with packaged liquid crystal panels are stacked on the pallets and are baled and fixed to be transported safely. Since the liquid crystal panels have different sizes for different liquid crystal displays, packaging boxes with different sizes are also required. However, the larger packaging boxes need larger pallets to be stacked thereon. The disadvantages are as follow: 1. the load bearing surface of the pallet is flat. The pallet is only used to stack the packaging boxes with packaged products so that cannot be used to package the products. 2. After the packaging boxes are stacked, the wrapping belts and friction between the pallet and the bottom surface of the bottommost packaging box stabilize the packaging box. When the packaging cases are transported, the packaging cases are vibrated and shaken within the trunk. When the shaking force is larger, the bottommost packaging box slides on the pallet so as to tilt the packaging case. Then the adjacent packaging cases may bump against each other or hit the inner wall of the trunk. Therefore, the packaging cases may suffer exceeding force in some parts to cause the liquid crystal panels inside the packaging boxes damage. 3. Packaging boxes with large size need to order corresponding pallets with large size. In particular, with the variation of the sizes of the liquid crystal panels, packaging cost is further increased while packaging boxes with corresponding large size are needed.

SUMMARY OF THE INVENTION

The embodiments of the present invention provide a pallet and a packaging case that can be assembled and have both packaging function and loading function to solve technical problem so that can used for larger size packaging box to further decrease packaging cost. Moreover, the stability of the packaging boxes when stacked into a packaging case is also enhanced to reduce the damage of the liquid crystal panels while transporting.

To solve the aforementioned technical problem, the first technical scenario of the present invention is to provide a pallet set, which comprises a first assembling pallet and a second assembling pallet assembled with the first assembling pallet.

The first assembling pallet has a first pallet top, a first pallet bottom and a first pallet outside wall defined between the first pallet top and the first pallet bottom; the first pallet top has at least one first barrier on each side except the side of the first pallet top connecting to the second assembling pallet.

The second assembling pallet has a second pallet top, a second pallet bottom and a second pallet outside wall defined between the second pallet top and the second pallet bottom; the second pallet top has at least one second barrier on each side of the second pallet top except the side connecting to the first assembling pallet.

When the first assembling pallet is assembled with the second assembling pallet, the first pallet outside wall located on the assembling side with the second assembling pallet is attached securely to the second pallet outside wall located on the assembling side with the first assembling pallet.

Further, each first barrier is fixed on the first pallet top by a fastener; and/or each second barrier is fixed on the second pallet top by a fastener.

Further, at least one of the first barriers and the second barriers has a protrusion adapted for being fastened to the packaging box.

Further, at least one first cavity formed through the first pallet outside wall; and/or at least one second cavity formed through the second pallet outside wall; and when the first assembling pallet is assembled with the second assembling pallet, the first cavity located on the assembling side with the second assembling pallet communicates with the second cavity located on the assembling side with the first assembling pallet.

Further, each first cavity has a first cavity opening facing to the first pallet bottom and two ends of the first cavity opening respectively communicate with the first pallet outside wall; and/or each second cavity has a second cavity opening facing to the second pallet bottom and two ends of the second cavity opening respectively communicate with the second pallet outside wall.

Further, the pallet set further comprises at least one third assembling pallet, and the third assembling pallet is mounted between the first assembling pallet and the second assembling pallet.

Further, the third assembling pallet has a third pallet top, a third pallet bottom and a third pallet outside wall defined between the third pallet top and the third pallet bottom; the third pallet top has at least one third barrier on each side of the third pallet top except the side connecting to the second assembling pallet.

Further, when using multiple third assembling pallets, the third assembling pallets connect securely to each other in series and are mounted between the first assembling pallet and the second assembling pallet.

Further, the first assembling pallet, the second assembling pallet and the third assembling pallets are made of plastic, wood or metal materials.

To solve the aforementioned technical problem, the second technical scenario of the present invention is to provide a pallet set, which comprises a first assembling pallet, a second assembling pallet assembled with the first assembling pallet and at least one third assembling pallet mounted between the first assembling pallet and the second assembling pallet.

The first assembling pallet has a first pallet top, a first pallet bottom and a first pallet outside wall defined between the first pallet top and the first pallet bottom; the first pallet top has at least one first barrier on each side of the first pallet top except the side connecting to the third assembling pallet.

The second assembling pallet has a second pallet top, a second pallet bottom and a second pallet outside wall defined between the second pallet top and the second pallet bottom; the second pallet top has at least one second barrier on each side of the second pallet top except the side connecting to the third assembling pallet.

The third assembling pallet has a third pallet top, a third pallet bottom and a third pallet outside wall defined between the third pallet top and the third pallet bottom; the third pallet top has at least one third barrier on each side of the third pallet top except the sides connecting to the first and second assembling pallets.

Further, when using multiple third assembling pallets, the third assembling pallets connect securely to each other in series and are mounted between the first assembling pallet and the second assembling pallet.

To solve the aforementioned technical problem, the third technical scenario of the present invention is to provide a packaging case comprising a pallet set, which comprises a first assembling pallet and a second assembling pallet assembled with the first assembling pallet.

The first assembling pallet has a first pallet top, a first pallet bottom and a first pallet outside wall defined between the first pallet top and the first pallet bottom; the first pallet top has at least one first barrier on each side of the first pallet top except the side connecting to the second assembling pallet.

The second assembling pallet has a second pallet top, a second pallet bottom and a second pallet outside wall defined between the second pallet top and the second pallet bottom; the second pallet top has at least one second barrier on each side of the second pallet top except the side connecting to the first assembling pallet.

When the first assembling pallet is assembled with the second assembling pallet, the first pallet outside wall located on the assembling side with the second assembling pallet is attached securely to the second pallet outside wall located on the assembling side with the first assembling pallet.

Further, each first barrier is fixed on the first pallet top by a fastener; and/or each second barrier is fixed on the second pallet top by a fastener.

Further, at least one of the first barriers and the second barriers has a protrusion adapted for being fastened to the packaging box.

Further, at least one first cavity formed through the first pallet outside wall; and/or at least one second cavity formed through the second pallet outside wall; and when the first assembling pallet is assembled with the second assembling pallet, the first cavity located on the assembling side with the second assembling pallet communicates with the second cavity located on the assembling side with the first assembling pallet.

Further, each first cavity has a first cavity opening facing to the first pallet bottom and two ends of the first cavity opening respectively communicate with the first pallet outside wall; and/or each second cavity has a second cavity opening facing to the second pallet bottom and two ends of the second cavity opening respectively communicate with the second pallet outside wall.

Further, the pallet set further comprises at least one third assembling pallet, and the third assembling pallet is mounted between the first assembling pallet and the second assembling pallet.

Further, the third assembling pallet has a third pallet top, a third pallet bottom and a third pallet outside wall defined between the third pallet top and the third pallet bottom; the third pallet top has at least one third barrier on each side of the third pallet top except the side connecting to the second assembling pallet.

Further, when using multiple third assembling pallets, the third assembling pallets connect securely to each other in series and are mounted between the first assembling pallet and the second assembling pallet.

Further, the first assembling pallet, the second assembling pallet and the third assembling pallets are made of plastic, wood or metal materials.

The pallet set and the packaging case of the present invention have advantages as follows:

1. In the embodiment of the present invention, since the pallet set can be assembled by the first and second assembling pallets according to the large size requirement of the packaging boxes or add one or more third assembling pallets between the first and second assembling pallets, pallets with different sizes are not required to be manufactured if the larger manufacturing materials such as liquid crystal panel are transported. Therefore, the packaging cost is reduced.

2. In the embodiment of the present invention, since the pallet has barriers around, the pallet top can be used as a box bottom of the packaging box. The manufacturing materials can be placed in the space between the barriers and the top to save the material of the packaging box and reduce the packaging cost.

3. In the embodiment of the present invention, since the barriers of the pallets have protrusions, the protrusions can be fastened to the packaging boxes to hold the packaging boxes. Therefore, the stability of the packaging case stacked by the packaging boxes is enhanced to reduce the damage of the manufacturing materials such as liquid crystal panels while transporting.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a first embodiment of a pallet set in accordance with present invention;

FIG. 2 is an exploded perspective view of the first and second assembling pallets in FIG. 1;

FIG. 3 is another perspective view of a second embodiment of a pallet set in accordance with present invention; and

FIG. 4 is a perspective view of the third assembling pallet in FIG. 3.

In the figure: 1—first assembling pallet, 11—first pallet top, 111—first barrier, 12—first pallet bottom, 13—first pallet outside wall, 131—first cavity, 2—second assembling pallet, 21—second pallet top, 211—second barrier, 22—second pallet bottom, 23—second pallet outside wall, 231—second cavity, 3—third assembling pallet, 31—third pallet top, 311—third barrier, 32—third pallet bottom, 33—third pallet outside wall, 331—third cavity, 4—protrusion.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Preferred embodiments are described below with reference to the drawings.

With reference to FIG. 1 to FIG. 4, the embodiments of a pallet set in accordance with the present invention are shown.

With reference to FIG. 1, FIG. 1 is a perspective view of a first embodiment of a pallet set in accordance with present invention. The first embodiment of the pallet set in accordance with the present invention comprises a first assembling pallet 1 and a second assembling pallet 2 assembled with the first assembling pallet.

The first assembling pallet 1 has a first pallet top 11, a first pallet bottom 12 and a first pallet outside wall 13 defined between the first pallet top 11 and the first pallet bottom 12; the first pallet top 11 has at least one first barrier 111 on each side of the first pallet top except the side connecting to the second assembling pallet 2.

The second assembling pallet 2 has a second pallet top 21, a second pallet bottom 22 and a second pallet outside wall 23 defined between the second pallet top 21 and the second pallet bottom 22; the second pallet top 21 has at least one second barrier 211 on each side of the second pallet top except the side connecting to the first assembling pallet 1.

When the first assembling pallet 1 is assembled with the second assembling pallet 2, the first pallet outside wall 13 located on the assembling side with the second assembling pallet 2 is attached securely to the second pallet outside wall 23 located on the assembling side with the first assembling pallet 1.

The Designer can design the way to fasten the first assembling pallet 1 and the second assembling pallet 2 based on his needs. For example, the first assembling pallet 1 and the second assembling pallet 2 are fixed together by a fastener, such as the screw and the threaded hole, pin, clips. It should be noted that assembling sides between the first assembling pallet 1 and second assembling pallet 2 are not limited on only one side.

Moreover, the first assembling pallet 1 has the first barrier 111 and the second assembling pallet 2 has the second barrier 211. The amount of the first barriers 111 on each side and the amount of the second barriers 211 on each side are one or more. When the barriers on each side of the first assembling pallet 1 and the second assembling pallet 2 are more than one, the barriers may have no connection and may be independent or may have various connecting way to have a space to contain liquid crystal panels with large size on the assembled pallets. Each first barrier 111 is fixed on the first pallet top 11 by fasteners such as screws, and/or each second barrier 211 is fixed on the second pallet top 21 by fasteners.

To keep the stacked packaging boxes from moving on the assembled pallets, at least one of the first barriers 111 and the second barriers 211 has a protrusion 4 adapted for being fastened to the packaging box. To better limit the movement of the stacked packaging boxes on the assembled pallets, all of the first barriers 111 and the second barriers 211 preferably has a protrusion 4 adapted for being fastened to the packaging box.

For easily using the wrapping belts to fasten the packaging boxes, at least one first cavity 131 formed through the first pallet outside wall 13; and/or at least one second cavity 231 formed through the second pallet outside wall 23 to allow the wrapping belts to pass through the first cavity 131 and/or the second cavity 231 and to transversely fasten the packaging box on the pallet set. When the first assembling pallet 1 is assembled with the second assembling pallet 2, the first cavity 131 located on the assembling side with the second assembling pallet 2 communicates with the second cavity 231 located on the assembling side with the first assembling pallet 1. Therefore, at least one wrapping belt can pass both through the first cavity 131 and the second cavity 231 to longitudinally fasten the packaging box on the pallet set. It should be noted that the assembling direction for the first assembling pallets 1 and the second assembling pallets 2 are longitudinal, and for one first assembling pallet 1 or one second assembling pallet 2 is transversal.

To save power for wrapping and to operate easily, each first cavity 131 has a first cavity opening facing to the first pallet bottom 12 and two ends of the first cavity opening respectively communicate with the first pallet outside wall 13; and/or each second cavity 231 has a second cavity opening facing to the second pallet bottom 22 and two ends of the second cavity opening respectively communicate with the second pallet outside wall 23.

According to the first embodiment of the pallet set of the present invention, a packaging case with the first embodiment of the pallet set is also provided. The pallet set has the same structure and connection with the first embodiment of the pallet set and therefore is not described details here.

With reference to FIG. 3, FIG. 3 is an illustrating view of the second embodiment of the pallet set in accordance with the present invention. Corresponding to the first embodiment of the pallet set of the present invention, the second embodiment of the present invention also provides a pallet set not only comprises the first assembling pallet 1 and the second assembling pallet 2 in the first embodiment of the pallet set of the present invention, but also comprises at least one third assembling pallet 3, and the third assembling pallet 3 is mounted between the first assembling pallet 1 and the second assembling pallet 2.

The first assembling pallet 1 has a first pallet top 11, a first pallet bottom 12 and a first pallet outside wall 13 defined between the first pallet top 11 and the first pallet bottom 12; the first pallet top 11 has at least one first barrier 111 on each side of the first pallet top except the side connecting to the third assembling pallet 3.

The second assembling pallet 2 has a second pallet top 21, a second pallet bottom 22 and a second pallet outside wall 23 defined between the second pallet top 21 and the second pallet bottom 22; the second pallet top 21 has at least one second barrier 211 on each side of the second pallet top except the side connecting to the third assembling pallet 3. It should be noted that the third assembling pallet 3 are assembled with the first assembling pallet 1 and the second assembling pallet 2 on different sides to allow the liquid crystal panels to be contained in the assembled pallets.

Further, the third assembling pallet 3 has a third pallet top 31, a third pallet bottom 32 and a third pallet outside wall 33 defined between the third pallet top 31 and the third pallet bottom 32. The third pallet top 31 has at least one third barrier 311 on each side of the third pallet top except the side connecting to the second assembling pallet 2. The third assembling pallet 3 has one or more third barriers 311 thereon. Further, when the third barriers 311 on the third assembling pallets 3 are more than one, the third barriers 311 may have no connection and may be independent or may have various connecting way to further limit the movement of the packaging box on the assembled pallets. Further, at least one of the third barriers 311 has a protrusion 4 adapted for being fastened to the packaging box, or all of the third barriers 311 preferably have a protrusion 4 adapted for being fastened to the packaging box.

To satisfy the requirement for the liquid crystal panels with large size, when multiple third assembling pallets 3 as described are needed, those third assembling pallets 3 are connected to each other in series and are mounted between the first assembling pallets 1 and the second assembling pallets 2. Each third barriers 311 on each third assembling pallets 3 has a protrusion 4 adapted for being fastened to the packaging box.

For easily using the wrapping belts to fasten the packaging boxes, the bottom 32 of each third assembling pallet 3 also needs to be the same as the bottom 12 of the first assembling pallet 1 and the bottom 22 of the second assembling pallet 2. At least one third cavity 331 is needed to be formed through the third pallet outside wall 33 to allow the wrapping belts to pass through the third cavity 331 to transversely fasten the packaging box on the pallet set.

When the first assembling pallet 1, one third assembling pallet 3 and the second assembling pallet 2 are assembled with each other, the first cavity 131 located on the assembling side with the third assembling pallet 3, the third cavity 331 located on the assembling side with the first assembling pallet 1, and the second cavity 231 located on the assembling side with the third assembling pallet 3 communicate with each other. Therefore, at least one wrapping belt can pass both through the first cavity 131, the second cavity 231 and the third cavity 331 to longitudinally fasten the packaging box on the pallet set.

When the first assembling pallet, multiple third assembling pallets 3 and the second assembling pallet 2 are assembled together, each third assembling pallet 3 needs to have at least one of the third cavity 331 to communicate to that of other third assembling pallet 3. When assembling, the first cavity 131 located on the assembling side with the third assembling pallet 3, the third cavities 331 communicating between the third assembling pallet 3, and the second cavity 231 located on the assembling side with the third assembling pallet 3 needs to communicate with each other.

To save power for wrapping and to operate easily, each third cavity 331 has a third cavity opening facing to the third pallet bottom 32 and two ends of the third cavity opening respectively communicate with the third pallet outside wall 33. The room formed by the third assembling pallets 3 after connecting to each other also has an opening communicating with the third pallet outside wall.

Further, the first assembling pallet 1, the second assembling pallet 2 and the third assembling pallets 3 are made of plastic, wood or metal materials.

According to the second embodiment of the pallet set of the present invention, a packaging case with the second embodiment of the pallet set is also provided. The pallet set has the same structure and connection with the second embodiment of the pallet set and therefore is not described details here.

To implement the pallet set and the packaging case in accordance with the present invention has advantages as follows:

1. In the embodiment of the present invention, since the pallet set can be assembled by the first and second assembling pallets according to the large size requirement of the packaging boxes or add one or more third assembling pallets between the first and second assembling pallets, pallets with different sizes are not required to be manufactured if the larger manufacturing materials such as liquid crystal panel are transported. Therefore, the packaging cost is reduced.

2. In the embodiment of the present invention, since the pallet has barriers around, the pallet top can be used as a box bottom of the packaging box. The manufacturing materials can be placed in the space between the barriers and the top to save the material of the packaging box and reduce the packaging cost.

3. In the embodiment of the present invention, since the barriers of the pallets have protrusions, the protrusions can be fastened to the packaging boxes to hold the packaging boxes. Therefore, the stability of the packaging case stacked by the packaging boxes is enhanced to reduce the damage of the manufacturing materials such as liquid crystal panels while transporting.

An ordinary person skilled in the art can realize that all or partial steps in the processes of the aforementioned embodiments can be implemented by using processes to command corresponding hardware. The processes can be stored in a readable storage medium of a computer. The storage medium as described may be ROM/RAM, floppy, disk and so on.

Aforementioned descriptions only involve preferable embodiments of the present invention and therefore do not limit the protection scope of the present invention. Every equivalent variation utilizing claims of the present invention is included within the scope of patent protection of the present invention.

Claims

1. A pallet set comprising a first assembling pallet and a second assembling pallet assembled with the first assembling pallet, wherein the first assembling pallet has a first pallet top, a first pallet bottom and a first pallet outside wall defined between the first pallet top and the first pallet bottom; the first pallet top has at least one first barrier on each side of the first pallet top except a side connecting to the second assembling pallet;the second assembling pallet has a second pallet top, a second pallet bottom and a second pallet outside wall defined between the second pallet top and the second pallet bottom; the second pallet top has at least one second barrier on each side of the second pallet top except a side connecting to the first assembling pallet; andwhen the first assembling pallet is assembled with the second assembling pallet, the first pallet outside wall located on an assembling side with the second assembling pallet is attached securely to the second pallet outside wall located on an assembling side with the first assembling pallet.

2. The pallet set as claimed in claim 1, wherein each first barrier is fixed on the first pallet top by a fastener; and/oreach second barrier is fixed on the second pallet top by a fastener.

3. The pallet set as claimed in claim 2, wherein at least one of the first barriers and the second barriers has a protrusion adapted for being fastened to the packaging box.

4. The pallet set as claimed in claim 3, wherein at least one first cavity formed through the first pallet outside wall; and/orat least one second cavity formed through the second pallet outside wall; andwhen the first assembling pallet is assembled with the second assembling pallet, the first cavity located on the assembling side with the second assembling pallet communicates with the second cavity located on the assembling side with the first assembling pallet.

5. The pallet set as claimed in claim 4, wherein each first cavity has a first cavity opening facing to the first pallet bottom and two ends of the first cavity opening respectively communicate with the first pallet outside wall; and/oreach second cavity has a second cavity opening facing to the second pallet bottom and two ends of the second cavity opening respectively communicate with the second pallet outside wall.

6. The pallet set as claimed in claim 5, wherein the pallet set further comprises at least one third assembling pallet, and the at least one third assembling pallet is mounted between the first assembling pallet and the second assembling pallet.

7. The pallet set as claimed in claim 6, wherein each one of the at least one third assembling pallet has a third pallet top, a third pallet bottom and a third pallet outside wall defined between the third pallet top and the third pallet bottom; the third pallet top has at least one third barrier on each side of the third pallet top except the side connecting to the second assembling pallet.

8. The pallet set as claimed in claim 7, wherein the pallet set has multiple third assembling pallets and the third assembling pallets connect securely to each other in series and are mounted between the first assembling pallet and the second assembling pallet.

9. The pallet set as claimed in claim 8, wherein the first assembling pallet, the second assembling pallet and the third assembling pallets are made of plastic, wood or metal materials.

10. A pallet set comprising a first assembling pallet, a second assembling pallet assembled with the first assembling pallet and at least one third assembling pallet mounted between the first assembling pallet and the second assembling pallet, wherein the first assembling pallet has a first pallet top, a first pallet bottom and a first pallet outside wall defined between the first pallet top and the first pallet bottom; the first pallet top has at least one first barrier on each side of the first pallet top except the side connecting to the third assembling pallet;the second assembling pallet has a second pallet top, a second pallet bottom and a second pallet outside wall defined between the second pallet top and the second pallet bottom; the second pallet top has at least one second barrier on each side of the second pallet top except the side connecting to the third assembling pallet; andeach one of the at least one third assembling pallet has a third pallet top, a third pallet bottom and a third pallet outside wall defined between the third pallet top and the third pallet bottom; the third pallet top has at least one third barrier on each side of the third pallet top except the sides connecting to the first and second assembling pallets.

11. The pallet set as claimed in claim 10, wherein the pallet set has multiple third assembling pallets and the third assembling pallets connect securely to each other in series and are mounted between the first assembling pallet and the second assembling pallet.

12. A packaging case comprising a pallet set having a first assembling pallet and a second assembling pallet assembled with the first assembling pallet, wherein the first assembling pallet has a first pallet top, a first pallet bottom and a first pallet outside wall defined between the first pallet top and the first pallet bottom; the first pallet top has at least one first barrier on each side of the first pallet top except the side connecting to the second assembling pallet;the second assembling pallet has a second pallet top, a second pallet bottom and a second pallet outside wall defined between the second pallet top and the second pallet bottom; the second pallet top has at least one second barrier on each side of the second pallet top except the side connecting to the first assembling pallet; andwhen the first assembling pallet is assembled with the second assembling pallet, the first pallet outside wall located on an assembling side with the second assembling pallet is attached securely to the second pallet outside wall located on an assembling side with the first assembling pallet.

13. The packaging case as claimed in claim 12, wherein each first barrier is fixed on the first pallet top by a fastener; and/oreach second barrier is fixed on the second pallet top by a fastener.

14. The packaging case as claimed in claim 13, wherein at least one of the first barriers and the second barriers has a protrusion adapted for being fastened to the packaging box.

15. The packaging case as claimed in claim 14, wherein at least one first cavity formed through the first pallet outside wall; and/orat least one second cavity formed through the second pallet outside wall; andwhen the first assembling pallet is assembled with the second assembling pallet, the first cavity located on the assembling side with the second assembling pallet communicates with the second cavity located on the assembling side with the first assembling pallet.

16. The packaging case as claimed in claim 15, wherein each first cavity has a first cavity opening facing to the first pallet bottom and two ends of the first cavity opening respectively communicate with the first pallet outside wall; and/oreach second cavity has a second cavity opening facing to the second pallet bottom and two ends of the second cavity opening respectively communicate with the second pallet outside wall.

17. The packaging case as claimed in claim 16, wherein the pallet set further comprises at least one third assembling pallet, and the at least one third assembling pallet is mounted between the first assembling pallet and the second assembling pallet.

18. The packaging case as claimed in claim 17, wherein each one of the at least one third assembling pallet has a third pallet top, a third pallet bottom and a third pallet outside wall defined between the third pallet top and the third pallet bottom; the third pallet top has at least one third barrier on each side of the third pallet top except the side connecting to the second assembling pallet.

19. The packaging case as claimed in claim 18, wherein the pallet set has multiple third assembling pallets, and the third assembling pallets connect securely to each other in series and are mounted between the first assembling pallet and the second assembling pallet.

20. The packaging case as claimed in claim 19, wherein the first assembling pallet, the second assembling pallet and the third assembling pallets are made of plastic, wood or metal materials.