CN212606990U

CN212606990U - Packing box

Info

Publication number: CN212606990U
Application number: CN202020513932.7U
Authority: CN
Inventors: 姚刚
Original assignee: Shunqihe Shenzhen Technology Co Ltd
Current assignee: Shunqihe Shenzhen Technology Co Ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2021-02-26
Anticipated expiration: 2030-04-09

Abstract

The utility model discloses a packing box, this packing carton includes: the drying device comprises a wind box and a cover body, wherein the wind box is of a structure with an opening at one end, the cover body is arranged at the opening of the wind box in a covering manner and forms a storage space for placing articles to be dried by enclosing with the wind box, the wind box is provided with an air inlet for air to enter, and the cover body is provided with an air outlet for air to flow out; the wind box includes: the box comprises a box bottom, a first protruding part and a second protruding part, wherein the second protruding part and the first protruding part are fixedly connected to the box bottom and extend along one end far away from the box bottom; a plurality of ventilation openings are formed in the second protruding portion, and the air inlet is formed in the first protruding portion or the box bottom enclosed by the first protruding portion and the second protruding portion. The utility model can avoid pollen waste; the drying of the pollen is realized, and the activity of the pollen is effectively ensured.

Description

Packing box

Technical Field

The utility model relates to the field of packaging technology, concretely relates to packing box.

Background

Because many plants are cross-pollinated and some pollen needs cross-pollination between different varieties; the flowering time is also different between some cultivars; therefore, it is necessary to store pollen which has various polysaccharides with certain viscosity, and the pollen after being stored for a long time will cause the pollen to adhere to each other, which will result in the reduction of the quality of the pollen.

At present, the main method is to collect pollen and dry the pollen by hot air, and in the process, the pollen activity is reduced due to high temperature, the pollen is easy to drift, and the pollen is lost due to drift around in the process of preventing the pollen from agglomerating by ventilation.

Therefore, it is urgently needed to provide a packaging box to solve the technical problems of pollen viability reduction and pollen waste caused by improper pollen storage methods in the prior art.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a packaging box, this packaging box includes wind box and the lid that covers and locate the wind box top, wind box and lid enclose to form a storage space for placing the article to be dried, put pollen in the storage space and dry, can avoid pollen waste; and simultaneously, the utility model discloses an air intake that supplies the air admission is seted up to the wind box, and an air outlet that supplies the air outflow is seted up to the lid, and the air is got into by the air intake, and the back of flowing is taken out by the air outlet in storage space, realizes the drying of pollen, need not carry out high temperature heating, has effectively guaranteed the activity of pollen.

The application provides a packing carton includes: the drying device comprises a wind box and a cover body, wherein the wind box is of a structure with an opening at one end, the cover body is arranged at the opening of the wind box in a covering manner and forms a storage space for placing articles to be dried by enclosing with the wind box, the wind box is provided with an air inlet for air to enter, and the cover body is provided with an air outlet for air to flow out;

the wind box includes: the box comprises a box bottom, a first protruding part and a second protruding part, wherein the second protruding part and the first protruding part are fixedly connected to the box bottom and extend along one end far away from the box bottom; the second bulge is provided with a plurality of ventilation openings, and the air inlet is formed in the first bulge or on the box bottom enclosed by the first bulge and the second bulge.

In some embodiments of the present application, the wind box further comprises: the two ends of the wind shield are connected to the second protruding portion and the first protruding portion respectively, the height of the wind shield is not lower than that of the second protruding portion, the height of the wind shield is not higher than that of the first protruding portion, and the plurality of ventilation openings and the air inlet are located on two sides of the wind shield.

In some embodiments of the present application, the wind box further comprises: the two ends of the air inlet screen are respectively connected to the second protruding portion and the first protruding portion, the height of the air inlet screen is not lower than that of the second protruding portion, and the air inlet screen is arranged on one side, far away from the plurality of ventilation openings, of the wind shield; a plurality of air inlet sieve pores for air to enter are arranged on the air inlet sieve.

In some embodiments of the present application, the package further comprises a drying screen comprising: the drying device comprises a screen disc and a drying enclosure, wherein the drying enclosure is fixedly connected to the screen disc and extends along one end far away from the drying enclosure, the drying enclosure and the screen disc enclose to form a first ventilation space with one open end, and a plurality of first air holes are formed in the screen disc positioned on the inner side of the drying enclosure;

the drying enclosure is abutted against the inner side of the second bulge, the screen disc is abutted against the inner side of the first bulge, and the air inlet screen, the wind shield, the second bulge and the drying enclosure are enclosed to form the air inlet.

In some embodiments of the present application, the packing box further comprises a receiving box, the receiving box comprising: the screen enclosure is fixedly connected to the top screen and extends along one end far away from the top screen, the screen enclosure and the top screen are enclosed to form a second ventilation space with one open end, and a plurality of second air holes are formed in the top screen; the outer side of the screen enclosure is abutted against the inner side of the first bulge, and one side, far away from the top screen, of the screen enclosure is abutted against the screen disc.

In some embodiments of this application, the packing carton still including set up in the paperweight sieve of top sieve top, the paperweight sieve with the holding box encloses to close and forms and places treat that dry article put the thing space, the paperweight sieve includes the paperweight sieve body and sets up a plurality of third gas pockets on the paperweight sieve body, paperweight sieve body edge butt in first bellying is inboard.

In some embodiments of the present application, each of the second air holes corresponds to each of the third air holes.

In some embodiments of the present application, the cover comprises: the wind box comprises a cover top and a cover enclosure, wherein the cover enclosure is fixedly connected with the cover top and extends along the direction far away from one side of the cover top, the inner side of the cover enclosure is abutted to the outside of the wind box, and the wind outlet is formed in the cover top.

In some embodiments of this application, the lid still includes to the post, support post fixed connection in the caping is close to wind box one side, support the post with the air outlet intercommunication, support and seted up a plurality of fourth gas ports on the post, support the post butt in the paperweight sieve body.

In some embodiments of the present application, the packing box further includes a first filter paper and a second filter paper, the first filter paper is disposed between the drying sieve and the receiving box, and the second filter paper is disposed between the receiving box and the paperweight sieve.

In the embodiment of the utility model, the packing box comprises the wind box and the cover body which is covered above the wind box, the wind box and the cover body enclose to form a storage space for placing the articles to be dried, and pollen is placed in the storage space for drying, thereby avoiding the waste of the pollen; and simultaneously, the utility model discloses an air intake that supplies the air admission is seted up to the wind box, and an air outlet that supplies the air outflow is seted up to the lid, and the air is got into by the air intake, and the back of flowing is taken out by the air outlet in storage space, realizes the drying of pollen, need not carry out high temperature heating, has effectively guaranteed the activity of pollen.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a packing box provided in an embodiment of the present invention;

fig. 2 is an exploded view of a packing box according to an embodiment of the present invention;

fig. 3 is a schematic view of a wind box structure of a packing box provided in an embodiment of the present invention;

fig. 4 is a schematic structural view of a drying screen of a packing box provided in an embodiment of the present invention;

fig. 5 is a schematic structural view of an accommodating box of a packing box provided in an embodiment of the present invention;

fig. 6 is a schematic structural view of a paperweight screen of a packing box according to an embodiment of the present invention;

fig. 7 is a top view of a cover structure of a packing box according to an embodiment of the present invention;

fig. 8 is a bottom view of a cover structure of a packing box according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

The embodiment of the utility model provides a packing carton, the following detailed description that carries out respectively.

It should be noted that, the package box in the embodiment of the present invention may be a cylinder, a rectangular parallelepiped or other polygons, and for convenience of description, the embodiment of the present invention is described by taking a cylindrical package box as an example.

Specifically, referring to fig. 1 and 2, the present application provides a packing box including: the drying device comprises an air box 100 and a cover body 200, wherein the air box 100 is a mechanism with an opening at one end, the cover body 200 covers the opening of the air box 100 and forms a storage space 10 for placing articles to be dried by enclosing with the air box 100, the air box 100 is provided with an air inlet 101 for air to enter, the cover body 200 is provided with an air outlet 201 for air to be drawn out, air enters from the air inlet 101 and flows out from the air outlet 201 after flowing in the storage space 10.

In an embodiment of the application, treat that dry article are pollen, the utility model discloses a place pollen and carry out the drying in storage space, effectively avoided the waste of pollen, simultaneously, the utility model discloses the principle of carrying out the drying to pollen is: through the circulation of air at storage space and drying, the technical problem that pollen activity is reduced due to the fact that pollen is dried at high temperature in the prior art is solved.

Further, in some embodiments of the present application, as shown in fig. 2, the packing box further includes a drying sieve 300, a containing box 400 and a paperweight sieve 500 sequentially disposed inside the storage space 10, the bottom of the cover 200 abuts against the paperweight sieve 500 to realize tight connection between the paperweight sieve 500 and the containing box 400, the containing box 400 abuts against the drying sieve 300, and the present application realizes stability of air flow when air flows in the storage space 10 and improves drying effect of pollen by mutual abutment between the cover 200, the drying sieve 300, the containing box 400 and the paperweight sieve 500.

Further, in order to prevent the pollen from being unnecessarily affected by dust in the air, which may cause a reduction in activity of the pollen, in some embodiments of the present application, a dust collector (not shown in the figure) is disposed at the air inlet 101, and the dust collector may be cotton or an object with a dust removing effect, such as a dust removing net; furthermore, the cotton also has certain degerming effect, and the activity of the pollen is further improved.

Further, as shown in fig. 2, in some embodiments of the present application, the packing box further includes a first filter paper 600, and the first filter paper 600 is disposed between the drying screen 300 and the receiving box 400. Specifically, the first filter paper 600 is used to absorb moisture from the air entering the receiving box 400, and it should be understood that: first filter paper 600 can be the filter paper that meets water and discolour, like this, can judge the air humidity before getting into holding box 400 through observing first filter paper 600's colour change, convenient and fast.

Further, as shown in fig. 2, in some embodiments of the present application, the packaging box further includes a second filter paper 700, the second filter paper 700 is disposed between the accommodating box 400 and the paperweight screen 500, the second filter paper 700 is used for absorbing moisture in the air after drying the pollen in the accommodating box 400, and similarly, the second filter paper 700 may also be a filter paper that changes color when encountering water, so that the humidity of the pollen can be quickly obtained by observing the color change of the second filter paper 700, that is, the humidity of the air after drying the pollen in the accommodating box 400.

Further, in some embodiments of the present application, as shown in fig. 3, the wind box 100 includes: the box bottom 110, the first protruding portion 120 and the second protruding portion 130, the second protruding portion 130 and the first protruding portion 120 are both fixedly connected to the box bottom 110 and extend along one end far away from the box bottom 110, the second protruding portion 130 is located inside the first protruding portion 120, and the first protruding portion 120, the second protruding portion 130 and the box bottom 110 enclose to form a drying space 20 with one open end; the second protruding portion 130 is provided with a plurality of ventilation openings 131, and the air inlet 101 is provided on the first protruding portion 120 or the box bottom 110 enclosed by the first protruding portion 120 and the second protruding portion 130.

In one embodiment of the present application, the air inlet 101 is disposed on the first protrusion 120, and air enters from the air inlet 101, is dried in the drying space 20, and then flows out through the plurality of ventilation openings 131. In order to avoid too short air flow paths, the intake vent 101 does not correspond to the plurality of ventilation openings 131.

It should be noted that the first protrusion 120 and the second protrusion 130 are closed figures, and the shapes of the first protrusion 120 and the second protrusion 130 may be the same or different, for example: the first protrusion 120 is circular, and the second protrusion 130 is closed semicircular, etc. As shown in fig. 3, in some embodiments of the present application, the first boss 120 and the second boss 130 are both circular.

And it should be understood that: the second protrusions 130 and the first protrusions 120 may be concentric or non-concentric, and in a practical application process, for convenience of manufacturing the air inlet screen 140 and the wind shield 150, the second protrusions 130 and the first protrusions 120 are concentric, so that the widths of all parts of the drying space 20 are the same, and uniformity of air flow is improved.

However, in the above manner, the path of the air circulation is still short, and the air drying is not thorough. To further enhance the air flow path, in some embodiments of the present application, the wind box 100 further comprises: the wind deflector 150, both sides of the wind deflector 150 are respectively connected to the second protrusion 130 and the first protrusion 120, and the air inlets 101 of the plurality of air vents 131 are located at both sides of the wind deflector 150, so that the air entering from the air inlets 101 can flow through the whole loop of the drying space 20, and the air is dried thoroughly.

It should be understood that: the height of the wind deflector 150 is not less than the height of the second raised portion 130 and the height of the wind deflector 150 is not greater than the height of the first raised portion 120. in order to reduce material waste and cost, in some embodiments of the present application, the height of the wind deflector 150 is equal to the height of the second raised portion 130.

Further, in order to ensure the cleanliness of the air entering the drying space 20 and avoid negative influence on the drying effect, in some embodiments of the present application, as shown in fig. 3, the wind box 100 further includes: the two ends of the air inlet screen 140 are respectively connected to the second convex portion 130 and the first convex portion 120, and the air inlet screen 140 is arranged on one side of the wind shield 150 far away from the plurality of ventilation openings 131; wherein, the air intake sieve 140 is provided with a plurality of air intake sieve holes 141 for air to enter.

It should be appreciated that the height of the intake screen 140 is not lower than the height of the second raised portion 130, and the height of the wind deflector 150 is not higher than the height of the first raised portion 120. in order to reduce material waste and cost, in some embodiments of the present application, the height of the intake screen 140 is equal to the height of the second raised portion 130.

Furthermore, in order to remove the moisture in the air, a drying agent is placed in the drying space 20, so that the moisture in the air can be better removed, and the drying effect of the pollen can be further improved.

Further, in order to reduce the size of the packing box and improve the integration of the packing box, in some embodiments of the present application, as shown in fig. 3, the height of the second protruding portion 130 is lower than the height of the first protruding portion 120, and the height difference space between the second protruding portion 130 and the first protruding portion 120 is used for placing the drying screen 300, the receiving box 400, the paperweight screen 500, and the like.

Further, in some embodiments of the present application, as shown in fig. 4, a drying screen 300 includes: the drying device comprises a sieve tray 310 and a drying enclosure 320, wherein the drying enclosure 320 is fixedly connected to the sieve tray 310 and extends along one end far away from the drying enclosure 310, the drying enclosure 320 and the sieve tray 310 enclose to form a first ventilation space 30 with one open end, and a plurality of first air holes 311 are formed in the sieve tray 310 located on the inner side of the drying enclosure 320;

the height of the drying enclosure 320 is not greater than the height of the second protrusion 130, the drying enclosure 320 abuts against the inner side of the second protrusion 130, the screen tray 310 abuts against the inner side of the first protrusion 120, and the air inlet screen 140, the wind shield 150, the second protrusion 130 and the drying enclosure 320 enclose to form the air inlet 101.

Further, in some embodiments of the present application, as shown in fig. 5, the receiving box 400 includes: the top screen 410 and the screen 420, the screen 420 is fixedly connected to the edge of the top screen 410 and extends along one end far away from the top screen 410, the screen 420 and the top screen 410 enclose to form a second vent space 40 with one open end, wherein the top screen 410 is provided with a plurality of second air holes 411; the outside of the screen 420 abuts against the inside of the first raised portion 120, and the side of the screen 420 away from the top screen 410 abuts against the screen tray 310.

Further, in some embodiments of the present application, as shown in fig. 6, the paperweight screen 500 includes a paperweight screen body 510 and a plurality of third air holes 511 opened on the paperweight screen body 510, wherein an edge of the paperweight screen body 510 abuts against an inside of the first protruding portion 120.

Further, since the paperweight screen 500 is disposed above the top screen 410, the paperweight screen body 510 is provided with a plurality of third air holes 511, the top screen 410 is provided with a plurality of second air holes 411, in order to avoid that the second air holes 411 and the third air holes 511 shield each other to cause air not to circulate, thereby causing the drying effect of the packaging box to fail, in some embodiments of the present application, each of the second air holes 411 and each of the third air holes 511 correspond to each other one by one, so as to ensure that the air flow can circulate from the accommodating box 400 to the cover body 200, and be drawn out through the air outlet 201.

Further, referring to fig. 7 and 8, the cover 200 includes: the cover top 210 and the cover periphery 220, the cover periphery 220 is fixedly connected to the cover top 210 and extends along a direction away from one side of the cover top 210, the inner side of the cover periphery 320 abuts against the outer side of the first protruding portion 120, and the air outlet 201 is opened on the cover top 210.

Further, in order to improve the stability of the packing box, the cover body 200 further includes a support pillar 240, the support pillar 240 is fixedly connected to one side of the cover top 210 close to the wind box 100, and the support pillar 240 abuts against the paperweight screen body 510, so as to achieve the technical effect of improving the stability of the packing box. In order to realize smooth air flow out of the package box, a plurality of fourth air holes 241 are disposed on the supporting column 240, and the supporting column 240 is communicated with the air outlet 201.

Since the air flows from the bottom of the packing box to the top of the packing box in the present application, additional power is required to realize the circulation process, specifically, the packing box further comprises an air exhaust tube 230, the air exhaust tube 230 is fixedly connected to the side of the cover top 210 far away from the wind box 100, and the air exhaust tube 230 is communicated with the air outlet; when the packing box is used, the air suction pipe 230 is connected with an external power structure (such as an air suction pump) to realize air circulation.

Further, for the convenience of installation, in some embodiments of the present application, the support pillar 240 is cylindrical, and the outer diameter of the support pillar 240, the outer diameter of the air outlet 201, and the outer diameter of the air exhaust pipe 230 are the same.

Specifically, the circulation process of air in the packaging box is as follows: the air enters the drying space 20 formed by the second protruding portion 130 and the first protruding portion 120 through the air inlet screen 140, enters the first ventilating space 30 through the plurality of air outlets 131 formed in the second protruding portion 130, enters the second ventilating space 40 through the plurality of first air holes 311, sequentially passes through the second air holes 411 and the third air holes 511, and is drawn out of the packaging box through the plurality of fourth air holes 241 and the air outlets 201.

Further, the embodiment of the utility model provides a use of packing carton is: placing desiccant in the drying space 20 between the second boss 130 and the first boss 120, covering the drying screen 300 such that the drying enclosure 320 is inserted into the second boss 130; secondly, dust removing objects are placed in the air inlet 101 to reduce the entering of dust; then, a first filter paper 600 is placed on the drying screen 300, and an article to be dried is placed in the middle of the upper portion of the first filter paper 600; in addition, the containing box 400 is added, and the screen 420 of the containing box 400 presses the first filter paper 600; subsequently, a second filter paper 700 is placed on the receiving box 400, and the second filter paper 700 is covered with the paperweight screen 500; finally, the cover body 200 is covered, so that the support column 140 is supported on the paperweight screen 500. It will be appreciated that during storage, the suction tube 130 is connected to a suction pump, and air is drawn out of the pack by the suction provided by the suction pump.

The utility model provides a packing carton has got rid of the steam in the air through carrying out the drying to the air that gets into in the packing carton, prevents that the pollen of placing in the packing carton from getting damp, has improved the storage cycle of pollen, has prolonged the life-span of pollen.

It should also be understood that: all the above components are cylindrical packaging boxes as examples, and if the packaging boxes are packaging boxes with other shapes, the number of each component and each component can be adjusted adaptively, which is not described herein again.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed descriptions of other embodiments, and are not described herein again. In a specific implementation, each unit or structure may be implemented as an independent entity, or may be combined arbitrarily to be implemented as one or several entities, and the specific implementation of each unit or structure may refer to the foregoing method embodiment, which is not described herein again.

The above provides a packaging box and introduces it in detail, and this document applies a specific example to explain the principle and implementation of the present invention, and the above description of the embodiment is only used to help understand the core idea of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be some changes in the specific implementation and application scope, and to sum up, the content of the present specification should not be understood as a limitation to the present invention.

Claims

1. A package, comprising: the drying device comprises a wind box and a cover body, wherein the wind box is of a structure with an opening at one end, the cover body is arranged at the opening of the wind box in a covering manner and forms a storage space for placing articles to be dried by enclosing with the wind box, the wind box is provided with an air inlet for air to enter, and the cover body is provided with an air outlet for air to flow out; the wind box includes: the box comprises a box bottom, a first protruding part and a second protruding part, wherein the second protruding part and the first protruding part are fixedly connected to the box bottom and extend along one end far away from the box bottom; the second bulge is provided with a plurality of ventilation openings, and the air inlet is formed in the first bulge or on the box bottom enclosed by the first bulge and the second bulge.

2. The package of claim 1, wherein the wind box further comprises: the two ends of the wind shield are connected to the second protruding portion and the first protruding portion respectively, the height of the wind shield is not lower than that of the second protruding portion, the height of the wind shield is not higher than that of the first protruding portion, and the plurality of ventilation openings and the air inlet are located on two sides of the wind shield.

3. The package of claim 2, wherein the wind box further comprises: the two ends of the air inlet screen are respectively connected to the second protruding portion and the first protruding portion, the height of the air inlet screen is not lower than that of the second protruding portion, and the air inlet screen is arranged on one side, far away from the plurality of ventilation openings, of the wind shield; a plurality of air inlet sieve pores for air to enter are arranged on the air inlet sieve.

4. The package of claim 3, further comprising a drying screen, the drying screen comprising: the drying device comprises a screen disc and a drying enclosure, wherein the drying enclosure is fixedly connected to the screen disc and extends along one end far away from the drying enclosure, the drying enclosure and the screen disc enclose to form a first ventilation space with one open end, and a plurality of first air holes are formed in the screen disc positioned on the inner side of the drying enclosure;

5. The package of claim 4, further comprising a receiving box, the receiving box comprising: the screen enclosure is fixedly connected to the top screen and extends along one end far away from the top screen, the screen enclosure and the top screen are enclosed to form a second ventilation space with one open end, and a plurality of second air holes are formed in the top screen; the outer side of the screen enclosure is abutted against the inner side of the first bulge, and one side, far away from the top screen, of the screen enclosure is abutted against the screen disc.

6. The packaging box according to claim 5, further comprising a paperweight screen arranged above the top screen, wherein the paperweight screen and the accommodating box are enclosed to form an object placing space for placing the object to be dried, the paperweight screen comprises a paperweight screen body and a plurality of third air holes formed in the paperweight screen body, and the edge of the paperweight screen body is abutted against the inner side of the first protruding portion.

7. The packaging box according to claim 6, wherein each of the second air holes corresponds to each of the third air holes.

8. The package of claim 6, wherein the cover comprises: the wind box comprises a cover top and a cover enclosure, wherein the cover enclosure is fixedly connected with the cover top and extends along the direction far away from one side of the cover top, the inner side of the cover enclosure is abutted to the outside of the wind box, and the wind outlet is formed in the cover top.

9. The packaging box according to claim 8, wherein the cover further comprises a support column, the support column is fixedly connected to one side of the cover top close to the wind box, the support column is communicated with the wind outlet, a plurality of fourth air holes are formed in the support column, and the support column abuts against the paperweight screen body.

10. The packing box of claim 6, further comprising a first filter paper disposed between the drying sieve and the receiving box, and a second filter paper disposed between the receiving box and the paperweight sieve.