WO2020098063A1

WO2020098063A1 - Packaging box

Info

Publication number: WO2020098063A1
Application number: PCT/CN2018/122132
Authority: WO
Inventors: 包文强; 吴琼
Original assignee: 惠科股份有限公司
Priority date: 2018-11-12
Filing date: 2018-12-19
Publication date: 2020-05-22
Also published as: CN208931924U

Abstract

A packaging box, comprising a first substrate and a side wall that forms an integrated structure with the first substrate, the substrate and the side wall thereof enclosing to form a containing compartment used to contain a display panel; the first substrate and/or the side wall is provided with a plurality of through-holes or a plurality of grooves. The amount of material of the packaging box is reduced, thus saving costs on materials; and the surface area for drying may be enlarged when a packaging box is in a drying process during manufacturing, thereby improving drying efficiency, and further saving costs in drying packaging boxes.

Description

Packing box The

Related application

This application requires the priority of the Chinese patent application with the application number 201821866805.4 and the application name “Packaging Box”, which was applied on November 12, 2018. The original text is hereby incorporated by reference.

Technical field

The present application relates to the technical field of transportation packaging, in particular to a packaging box.

Background technique

Illustratively, for the packaging of display panels (especially liquid crystal display panels), foam materials with cushioning properties (such as EPS (expandable polystyrene), EPP (foamed polypropylene), EPO (30 % Polyethylene and 70% polystyrene)). The bottom of this kind of packaging box is thicker, and this kind of packaging box is formed by softening and sintering plastic particles by passing high temperature water vapor in the mold. The packaging box itself has a lot of moisture, which needs to be dried in the later stage. deal with. However, the larger the size of the packaging box, the thicker the bottom and the more materials are used, so that the drying time is longer, the efficiency of manufacturing the packaging box is greatly reduced, and the cost of drying is correspondingly increased.

Summary of the invention

The present application proposes a packaging box, which can improve the problem of low moisture drying efficiency in the packaging box.

The packaging box proposed by the present application includes a first bottom plate and a side wall in an integral structure with the first bottom plate, the first bottom plate and the side wall enclose a cavity for receiving a display panel; wherein, The first bottom plate and / or the side wall are provided with several through holes or several grooves.

Optionally, the first bottom plate is provided with a plurality of first through holes, the packaging box further includes a second bottom plate, the second bottom plate and the first bottom plate are stacked up and down, and the second bottom plate can be sealed The first through hole is blocked.

Optionally, the second bottom plate is provided with a plurality of second through holes, and the second through holes are staggered from the first through holes, so that the second bottom plate blocks the first through holes, The first bottom plate blocks the second through hole.

Optionally, a plurality of the first through holes and / or the second through holes are opened and arranged in a matrix manner.

Optionally, the first bottom plate and the second bottom plate are detachably connected.

Optionally, the second bottom plate is stacked on the upper surface of the first bottom plate; and / or, the second bottom plate is adapted to the shape of the first bottom plate.

Optionally, the second bottom plate is disposed above the first bottom plate and has a distance from the first bottom plate, and a supporting column is provided between the first bottom plate and the second bottom plate; and / or, The second bottom plate is adapted to the shape of the first bottom plate.

Optionally, the support column is an elastic member.

Optionally, the elastic member includes a first spring extending vertically and a second spring extending at an angle with a horizontal plane, the first spring is fixedly connected to the middle of the first bottom plate, and the second spring It is fixedly connected to the edge of the first bottom plate.

Optionally, the upper end surface of the side wall is convexly provided with an engaging portion, and the lower end surface of the side wall is formed with an escape groove. When at least two of the packaging boxes are stacked up and down, the engaging portion is locked Into the avoidance groove.

The technical solution of the present application can enhance the overall strength of the packaging box by providing the first bottom plate and the side wall of the packaging box as an integrated structure. Further, opening a plurality of through holes or grooves on the first bottom plate and / or side wall of the packaging box can reduce the material consumption of the packaging box on the one hand, thereby saving material costs; on the other hand, when the packaging box is being manufactured During the drying process, the surface area for drying can be increased, which can improve the drying efficiency, thereby saving the drying cost of the packaging box. In addition, it can be understood that the reduction in the amount of packaging material also promotes the drying rate, thereby increasing the drying efficiency.

BRIEF DESCRIPTION

In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, without paying any creative work, other drawings can be obtained according to the structures shown in these drawings.

1 is a schematic diagram of an explosion structure of an embodiment of a packaging box and a display panel of the present application;

2 is a schematic diagram of the front structure of an embodiment of the packaging box of the present application;

3 is a schematic diagram of the back structure of an embodiment of the packaging box of the present application;

4 is a schematic structural diagram of a second bottom plate in a packaging box of the present application;

5 is a schematic diagram of an explosion structure of another embodiment of a packaging box and a display panel of the present application;

6 is a schematic diagram of an explosion structure of another embodiment of a packaging box and a display panel of the present application.

Description of Drawing Symbols:

标号Label	名称name	标号Label	名称name
100100	第一底板First floor	110110	第一通孔First through hole
200200	第二底板Second floor	210210	第二通孔Second through hole
300300	侧壁Side wall	310310	卡合部Engagement Department
320320	避让槽Avoidance slot	400400	支撑柱Support column
410410	第一弹簧First spring	420420	第二弹簧Second spring
500500	显示面板Display panel	600600	缓冲件Cushion
101101	容纳腔Accommodating cavity	102102	安装槽Mounting slot

The implementation, functional characteristics and advantages of the present application will be further described in conjunction with the embodiments and with reference to the drawings.

detailed description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application, the directional indication is only set to be interpreted in a specific posture (as shown in the drawings) If the specific posture changes, the directional indication will change accordingly.

In addition, if there are descriptions related to "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only set for the purpose of description, and cannot be understood as instructions or hints Its relative importance or implicitly indicates the number of technical features indicated. Thus, the features defined with "first" and "second" may include at least one of the features either explicitly or implicitly. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of those skilled in the art to realize. When the combination of technical solutions contradicts or cannot be realized, it should be considered that the combination of such technical solutions does not exist , Nor within the scope of protection required by this application.

This application proposes a packaging box.

In the embodiment of the present application, as shown in FIGS. 1, 2 and 6, the packaging box includes a first bottom plate 100 and a side wall 300 having an integrated structure with the first bottom plate 100, and the first bottom plate 100 and the side wall 300 surround Combined to form a receiving cavity 101 for receiving the display panel 500; wherein, the first bottom plate 100 and / or the side wall 300 are provided with several through holes or several grooves.

When the first bottom plate 100 of the packaging box and the side wall 300 of the packaging box have an integrated structure, the first bottom plate 100 and the side wall 300 may be bonded or integrally formed. In this way, when the first bottom plate 100 and the side wall 300 are integrated, the strength of the entire packaging box can be improved. It can be understood that, if the first bottom plate 100 and the side wall 300 are connected by bonding, the first bottom plate 100 and the side wall 300 can be separately formed, and then the first bottom plate 100 and the side wall 300 are molded and enter the moisture drying process It can be dried separately at the same time to improve the drying efficiency; after the final drying, the first bottom plate 100 and the side wall 300 are bonded together.

In order to improve the drying efficiency, in the technical solution of the present application, a plurality of through holes are formed on the first bottom plate 100 and / or the side wall 300 or a plurality of grooves are formed on the first bottom plate 100 and / or the side wall 300. When several through holes are formed in the first bottom plate 100 and / or the side wall 300, on the one hand, the amount of material used for the first bottom plate 100 and / or the side wall 300 can be reduced, and on the other hand, the first bottom plate 100 and / or Or the surface area of the side wall 300, thereby increasing the area of ventilation (convection) between the air and the first bottom plate 100 and / or the side wall 300, thereby improving the drying efficiency of drying the moisture in the packaging box. It can be understood that, after the drying efficiency is improved, the drying cost of a single packaging box can also be reduced. Similarly, when several grooves are provided in the first bottom plate 100 and / or the side wall 300, on the one hand, the thickness of the partial area of the first bottom plate 100 and / or the partial area of the side wall 300 can be reduced, and the amount of material can be reduced , Saving material costs; on the other hand, the provision of grooves reduces the thickness of the partial area of the first bottom plate 100 and / or the partial area of the side wall 300, and at the same time increases the first base plate 100 and / or the side wall 300 and The convection area of the air can improve the drying efficiency of drying the moisture in the packaging box. In addition, it can be understood that when the first bottom plate 100 and / or the side wall 300 are provided with through holes, the two opposite sides of the first bottom plate 100 and / or the side wall 300 can simultaneously dry the packaging box through the through holes , To further improve the drying efficiency of the packaging box.

Specifically, in the technical solution of the present application, the opening shape of the through hole or the groove is not specifically limited. For example, the opening shape of the through hole or the groove may be circular, rectangular, triangular, trapezoidal, or other irregular shapes.

In the technical solution of the present application, the packaging box is mainly used to accommodate the display panel 500. Since the display panel 500 is generally rectangular, in order to adapt to the shape of the display panel 500, the first bottom plate 100 of the packaging box in the technical solution of the present application may also be rectangular. The side wall 300 of the packaging box is fixedly connected to the edge of the first bottom plate 100, and the side wall 300 and the first bottom plate 100 surround to form an accommodating cavity 101, which can accommodate the display panel 500 so that the display panel 500 is packaged The box surrounds it for protection. Based on the appearance structure of the packaging box described above, in order to alleviate the stress concentration phenomenon at the corners of the packaging box, the cross section of the corners in the technical solution of the present application is in an arc shape, and both ends of the corners are adjacent to each other The two side walls 300 transition smoothly. In this way, it is possible to prevent the corners from being too sharp and causing strong stress concentration, so that the external force can be distributed to both ends of the corners or even to the side wall 300 of the packaging box. Alternatively, a buffer 600 is interposed between the corner of the packaging box and the display panel 500. The buffer 600 may be a spring, rubber, silicone, or sponge. Of course, in other embodiments, the first bottom plate 100 of the packaging box may also be circular or other polygons.

The technical solution of the present application can enhance the overall strength of the packaging box by providing the first bottom plate 100 and the side wall 300 of the packaging box as an integrated structure. Further, a number of through holes or grooves are formed in the first bottom plate 100 and / or the side wall 300 of the packaging box, on the one hand, the material consumption of the packaging box can be reduced, thereby saving material costs; on the other hand, when the packaging box In the manufacturing drying process, the surface area for drying can be increased, so that the drying efficiency can be improved, thereby saving the drying cost of the packaging box. In addition, it can be understood that the reduction in the amount of packaging material also promotes the drying rate, thereby increasing the drying efficiency.

Referring to FIGS. 1 to 5 together, in this embodiment, the first bottom plate 100 is provided with a plurality of first through holes 110, and the packaging box further includes a second bottom plate 200. The second bottom plate 200 and the first bottom plate 100 are stacked one above the other, and The second bottom plate 200 can block the first through hole 110.

As long as the packaging box is used to accommodate the display panel 500, the first bottom plate 100 of the packaging box and the panel surface of the display panel 500 are generally disposed opposite to each other. Therefore, the surface area of the first bottom plate 100 is larger than that of the side wall 300. In this embodiment, by providing a plurality of first through-holes 110 in the first bottom plate 100, the number or opening area of the first through-holes 110 can be made larger, so that the amount of materials can be minimized and the drying efficiency can be improved.

Further, by stacking the second bottom plate 200 up and down with the first bottom plate 100, and the second bottom plate 200 can block the first through-hole 110, external debris or water vapor can be prevented from passing through the first on the first bottom plate 100 The through hole 110 enters the accommodating cavity 101 of the packaging box, thereby exerting a protective effect on the display panel 500 in the packaging box. Specifically, in order to achieve the effect that the second bottom plate 200 can block the first through hole 110, the second bottom plate 200 can be a cover plate without a through hole, and the plate surface of the second bottom plate 200 can cover the first through hole 110. Of course, the second bottom plate 200 may also be provided with through holes, and when the second bottom plate 200 and the first bottom plate 100 are arranged up and down, the portion of the second bottom plate 200 without the through hole may block the first through hole 110, that is, the second bottom plate The through hole 200 is offset from the first through hole 110 of the first base plate 100.

In addition, when the second bottom plate 200 and the first bottom plate 100 are arranged up and down, the second bottom plate 200 can be arranged above the first bottom plate 100 or under the first bottom plate 100; the first bottom plate 100 and the second bottom plate 200 can be In the fitting arrangement, the first bottom plate 100 and the second bottom plate 200 may be oppositely arranged on the premise that the first bottom plate 100 or the second bottom plate 200 has a certain supporting strength.

Based on the solution that the packaging box includes the second bottom plate 200, the material of the second bottom plate 200 and the first bottom plate 100 may be the same or different. It can be understood that, when the material of the second bottom plate 200 is the same as the material of the first bottom plate 100, the second bottom plate 200 also needs to be dried.

1, 4 and 5, in order to improve the drying efficiency of the first bottom plate 100 and the second bottom plate 200, in this embodiment, the second bottom plate 200 is provided with a plurality of second through holes 210, the second through holes 210 is offset from the first through hole 110 so that the second bottom plate 200 blocks the first through hole 110 and the first bottom plate 100 blocks the second through hole 210. In this way, on the one hand, the material consumption of the second bottom plate 200 can be reduced, thereby saving material costs, and improving the drying efficiency of the second bottom plate 200, and the second through hole 210 can also improve the drying efficiency of the first bottom plate 100 On the other hand; the opening of the second through hole 210 can also increase the convection area of the second bottom plate 200 and the air, so that the drying efficiency of the second bottom plate 200 can also be improved. Further, if the second bottom plate 200 blocks the first through-hole 110 and the first bottom plate 100 blocks the second through-hole 210, external debris or water vapor can be prevented from entering the packaging box through the first through-hole 110 or the second through-hole 210 Inside the receiving cavity 101, thereby protecting the display panel 500 in the packaging box.

Specifically, in order to achieve the effect that the first bottom plate 100 blocks the second through hole 210 and the second bottom plate 200 blocks the first through hole 110, the first through hole 110 of the first bottom plate 100 and the second The through holes 210 may be arranged in a misaligned manner, that is, the second through holes 210 are opened up and down corresponding to the positions where the first bottom plate 100 is not provided with the first through holes 110, and the first through holes 110 are corresponding to the second bottom plate 200 without the second through holes The hole 210 is opened. For example, when a plurality of circular first through holes 110 are evenly formed on the first bottom plate 100, the second through holes 210 of the second bottom plate 200 may also be circular, and the central axis of the second through holes 210 may pass through The midpoint of the center line connecting two adjacent first through holes 110, and the radius of the second through hole 210 is less than or equal to the minimum distance between the two adjacent first through holes 110. In this way, it can be ensured that the first bottom plate 100 can block the second through hole 210; similarly, the second bottom plate 200 can also achieve the effect of blocking the first through hole 110.

Of course, the arrangement of the first through-holes 110 and the second through-holes 210 in the technical solution of the present application can also adopt other methods, as long as the first bottom plate 100 and the second bottom plate 200 are arranged up and down without causing foreign debris or The water vapor only needs to enter the accommodating cavity 101 of the packaging box through the first through hole 110 or the second through hole 210.

Please refer to FIGS. 1 to 5. In order to further ensure the stability of the first bottom plate 100 and / or the second bottom plate 200, the first through holes 110 and / or the second through holes 210 are provided in a plurality and arranged in a matrix manner.

By providing a plurality of first through holes 110 and / or second through holes 210, the surface area of the first bottom plate 100 and / or the second bottom plate 200 and the air convection can be increased, thereby further improving the efficiency of drying the packaging box . In addition, the first through-holes 110 and / or the second through-holes 210 are arranged in a matrix manner, so that the distribution of the plurality of first through-holes 110 and / or the second through-holes 210 is more uniform, which can avoid the first The partial strength of the bottom plate 100 and / or the second bottom plate 200 is relatively weak, ensuring good support strength of the first bottom plate 100 and / or the second bottom plate 200.

Further, as shown in FIG. 1 or FIG. 5, the first bottom plate 100 and the second bottom plate 200 are detachably connected.

By detachably connecting the first bottom plate 100 and the second bottom plate 200, the second bottom plate 200 can be separately manufactured during the manufacturing process of the packaging box, and in the drying process engineering, the first bottom plate 100 and the second bottom plate 200 It can be dried separately at the same time, which can improve the drying efficiency, save drying time, and improve the production efficiency of the packaging box.

Specifically, the inner wall of the packaging box may be provided with a mounting groove 102, and the second bottom plate 200 is installed in the mounting groove 102. Alternatively, the second bottom plate 200 and the first bottom plate 100 may be bonded together.

Specifically, the present application provides an embodiment: the second bottom plate 200 is attached to the upper surface of the first bottom plate 100.

When the second bottom plate 200 is disposed on the upper surface of the first bottom plate 100, on the one hand, the second bottom plate 200 can be prevented from falling off from the first bottom plate 100, thereby ensuring the installation stability of the second bottom plate 200; When the second bottom plate 200 and the first bottom plate 100 are attached to each other, the sum of the thicknesses of the first bottom plate 100 and the second bottom plate 200 forms the bottom thickness of the packaging box, so that the support strength of the bottom of the packaging box to the display panel 500 can be further enhanced. In addition, it can be understood that, based on the scheme in which the second bottom plate 200 and the first bottom plate 100 are closely attached, the thicknesses of the first bottom plate 100 and the second bottom plate 200 can be relatively thinned, thereby further improving the The drying efficiency of the bottom plate 200.

Further, based on the scheme that the second bottom plate 200 is attached to the upper surface of the first bottom plate 100, the shape of the second bottom plate 200 is adapted to the first bottom plate 100. In this way, the second bottom plate 200 can be limited by the inner wall surface of the side wall 300, thereby avoiding the phenomenon that the second bottom plate 200 slides relative to the first bottom plate 100 in a horizontal plane.

As shown in FIG. 5, based on the solution in which the second bottom plate 200 is disposed above the first bottom plate 100, the present application also provides an embodiment: the second bottom plate 200 and the first bottom plate 100 have a gap between the first bottom plate 100 and Support columns 400 are provided between the second bottom plates 200.

When a distance is provided between the first bottom plate 100 and the second bottom plate 200, and a supporting column 400 is provided between the first bottom plate 100 and the second bottom plate 200, on the one hand, the setting of the supporting column 400 can enhance the first bottom plate 100 and the second bottom plate 200. The connection strength between the two bottom plates 200 also enhances the supporting strength of the first bottom plate 100 and / or the second bottom plate 200; on the other hand, there is a gap between the first bottom plate 100 and the second bottom plate 200, it can be understood as , A cavity is formed between the first bottom plate 100 and the second bottom plate 200, when the packaging box is dried, the outside dry air can increase the contact with the first bottom plate 100 and the second bottom plate 200 through the cavity The area can further improve the drying efficiency of the packaging box.

Similarly, the shapes of the second bottom plate 200 and the first bottom plate 100 can be adapted. In this way, the second bottom plate 200 can be limited by the inner wall surface of the side wall 300, so that the phenomenon that the second bottom plate 200 slides relative to the first bottom plate 100 in the horizontal plane can be avoided, and the stability of the second bottom plate 200 installation is ensured .

Considering that the display panel 500 may be made of liquid crystal glass, in order to prevent the impact force during transportation from causing severe deformation or damage to the display panel 500, the supporting column 400 in this application may further use elastic members.

The elastic member is supported between the first bottom board 100 and the second bottom board 200, so that when the package containing the display panel 500 falls, the elastic member acts as a buffer, thereby reducing the impact on the display panel 500. The display panel 500 has a better protection effect.

Of course, when only the buffering effect is considered, in other embodiments, other buffering substances, such as sponges, may be filled between the first bottom plate 100 and the second bottom plate 200.

Please further refer to FIG. 5, based on the above solution that the supporting column 400 is an elastic member, specifically, in this embodiment, the elastic member includes a first spring 410 that extends vertically and a second spring 420 that extends at an angle to the horizontal plane The first spring 410 is fixedly connected to the middle of the first bottom plate 100, and the second spring 420 is fixedly connected to the edge of the first bottom plate 100.

During transportation, the display panel 500 and the packaging box protecting the display panel 500 are usually affected by the fall. At this time, the display panel 500 is susceptible to impact in the vertical direction and has the possibility of being turned over. By using the first spring 410 extending in the vertical direction, the display panel 500 has a better buffering effect in the vertical direction; at the same time, the display panel 500 can be reduced by providing the second spring 420 that forms an acute angle with the horizontal plane The degree of damage and deformation that occurs during rollover.

Further, by fixedly connecting the first spring 410 to the middle of the first bottom plate 100 and the second spring 420 fixedly connected to the edge of the first bottom plate 100, the first spring 410 can resist a part of the vertical impact force, the second The spring 420 can resist a part of the oblique impact force, so that the display panel 500 can obtain a buffering effect when the display panel 500 is dropped vertically or sideways. In order to ensure the stability of the placement of the display panel 500 during transportation, the second springs 420 on opposite sides of the packaging box are symmetrically arranged with respect to the central axis of the packaging box.

Further, please refer to FIG. 1 and FIG. 3 together, the upper end surface of the side wall 300 is convexly provided with an engaging portion 310, and the lower end surface of the side wall 300 is formed with an escape groove 320. When at least two packaging boxes are stacked up and down, The engaging portion 310 is engaged in the escape groove 320.

When at least two packaging boxes are stacked in the up-down direction, the engaging portion 310 of the lower packaging box is caught in the escape slot 320 at the bottom of the upper packaging box, thereby ensuring the stability of the packaging boxes when stacked in the vertical direction , On the other hand can also reduce the stacking space.

Or, in other embodiments, the lower end surface of the side wall 300 is flush with the back of the bottom plate, and the upper end surface of the side wall 300 is provided with an escape groove 320; Of the reinforcing ribs snap into the escape groove 320 of the lower packaging box.

The above is only an optional embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformations made by the description and drawings of the present application under the inventive concept of the present application, or direct / indirect Applications in other related technical fields are included in the patent protection scope of this application.

Claims

A packaging box, including:

First floor; and

A side wall, the side wall and the first bottom plate have an integrated structure, and the first bottom plate and the side wall surround to form a receiving cavity for receiving a display panel;

Wherein, the first bottom plate and / or the side wall are provided with several through holes or several grooves.
The packaging box according to claim 1, wherein the first bottom plate is provided with a plurality of first through holes, and the packaging box further includes a second bottom plate, and the second bottom plate and the first bottom plate are stacked up and down, And the second bottom plate can block the first through hole.
The packaging box according to claim 2, wherein the second bottom plate is provided with a plurality of second through holes, and the second through holes are offset from the first through holes to block the second bottom plate The first through hole and the first bottom plate block the second through hole.
The packaging box according to claim 3, wherein a plurality of the first through holes are opened, and the first through holes are arranged in a matrix.
The packaging box according to claim 3, wherein the second through holes are provided in plurality, and the second through holes are arranged in a matrix manner.
The packaging box according to claim 3, wherein the first through hole and the second through hole are both provided in plurality, and the first through hole and the second through hole are arranged in a matrix manner . The
The packaging box of claim 2, wherein the first bottom plate and the second bottom plate are detachably connected.
The packaging box according to claim 7, wherein the second bottom plate is stacked on the upper surface of the first bottom plate.
The packaging box according to claim 8, wherein the inner wall of the packaging box is provided with a mounting groove, and the second bottom plate is mounted in the mounting groove.
The packaging box according to claim 9, wherein the second bottom plate is adapted to the shape of the first bottom plate.
The packaging box according to claim 9, wherein the second bottom plate is disposed above the first bottom plate and has a distance from the first bottom plate, and is disposed between the first bottom plate and the second bottom plate There are supporting columns.
The packaging box according to claim 11, wherein the support column is an elastic member.
The packaging box according to claim 12, wherein the elastic member comprises a first spring extending vertically and a second spring extending at an angle with a horizontal plane, the first spring is fixedly connected to the first bottom plate In the middle of the, the second spring is fixedly connected to the edge of the first bottom plate.
The packaging box according to claim 13, wherein the second springs on opposite sides of the packaging box are arranged symmetrically with respect to the central axis of the packaging box.
The packaging box according to claim 1, wherein the upper end surface of the side wall is convexly provided with an engaging portion, and the lower end surface of the side wall is formed with an escape groove, when at least two of the packaging boxes are stacked up and down At this time, the engaging portion is engaged in the escape groove.
The packaging box according to claim 1, wherein the first bottom plate is bonded or integrally formed with the side wall.
The packaging box according to claim 1, wherein the packaging box has a rectangular parallelepiped shape, the cross section of the corner portion of the packaging box has an arc shape, and both ends of the corner portion are respectively adjacent to two The side walls are smoothly connected.
The packaging box according to claim 17, wherein a buffer member is interposed between the corner portion and the display panel.
A packaging box, including:

First floor; and

A side wall, the side wall and the first bottom plate have an integrated structure, and the first bottom plate and the side wall surround to form a receiving cavity for receiving a display panel;

Wherein, the first bottom plate and / or the side wall are provided with several through holes or several grooves;

The first bottom plate is provided with a plurality of first through holes, the packaging box further includes a second bottom plate, the second bottom plate and the first bottom plate are stacked up and down, and the second bottom plate can block the first A through hole

The upper end surface of the side wall is convexly provided with an engaging portion, and the lower end surface of the side wall is formed with an avoidance groove. Inside the slot.
A packaging box, including:

First floor; and

A side wall, the side wall and the first bottom plate have an integrated structure, and the first bottom plate and the side wall surround to form a receiving cavity for receiving a display panel;

Wherein, the first bottom plate and / or the side wall are provided with several through holes or several grooves;

The first bottom plate is provided with a plurality of first through holes, the packaging box further includes a second bottom plate, the second bottom plate and the first bottom plate are stacked up and down, and the first bottom plate and the second bottom plate Removable connection; the second bottom plate is provided with a plurality of second through holes, the second through holes are staggered with the first through holes, so that the second bottom plate blocks the first through holes, The first bottom plate blocks the second through hole. The