Moisture-proof packaging box

Abstract

The present invention discloses a moisture-proof packaging box, which belongs to the field of road transport packaging boxes. The present invention comprises a box body and a moisture-absorbing component. The box body comprises a top plate, a bottom plate and a plurality of side plates, wherein the top plate, the bottom plate and the plurality of side plates are connected to form a closed box, and the products to be transported are placed in the closed box; the area of ​​the top plate is larger than the area of ​​the bottom plate, and the top plate protrudes from the side plates. The interior of the closed box is provided with the moisture-absorbing component, which can absorb water vapor, and the moisture-absorbing component can also unidirectionally guide the water vapor away from the products to be transported. The present invention forms a structure similar to an eave by setting a top plate with a large area, so that when it rains during loading and unloading of the packaging box, the water on the top can be directly dripped from the edge of the top plate to the ground, thereby preventing the water from flowing to the bottom plate through the side plates.

Description

Technical Field

[0001] The invention relates to the field of road transport packaging boxes, and in particular to a moisture-proof packaging box. Background Art

[0002] A packaging box is a container used to hold, protect and transport items. It is widely used in logistics, business and daily life. Some precision experimental instruments are controlled at a low humidity during production and use to ensure the normal operation of the experimental instruments. Experimental instruments are usually packed in wooden boxes and transported by vans. When passing through some humid areas or in the rainy season, there is more water vapor in the air.

[0003] Water vapor is the gaseous form of water, and its density is slightly lower than that of air. However, in actual environments, since water vapor is usually in a relatively closed packaging box and the content is relatively small, it will not rise and diffuse as quickly as in a completely open space. In a relatively static air environment, water vapor will have a certain tendency to gather, and when there is no external force such as strong convection, it will be relatively evenly distributed in the packaging box. However, since the temperature below is usually relatively low, according to the principle of thermal expansion and contraction, the movement speed of water vapor molecules slows down at low temperatures, making it easier for them to approach each other and condense, and then gather to the bottom of the box under the action of gravity. This will cause the bottom of the packaging box to be relatively humid, which can easily make the bottom of the experimental instrument damp, and even cause the experimental instrument to malfunction. Summary of the invention

[0004] In view of the above-mentioned shortcomings, the present invention provides a moisture-proof packaging box, which can prevent water vapor from gathering inside, especially prevent water vapor from gathering at the bottom of the packaging box, so as to protect the products to be transported.

[0005] The present invention protects a moisture-proof packaging box, which includes a box body and a moisture-absorbing component;

[0006] The box body comprises a top plate, a bottom plate and a plurality of side plates, wherein the top plate, the bottom plate and the plurality of side plates are connected to form a closed box, and the product to be transported is placed in the closed box; the area of ​​the top plate is larger than the area of ​​the bottom plate, and the top plate protrudes from the side plates;

[0007] The interior of the closed box is provided with the moisture absorbing component, which can absorb water vapor and can also unidirectionally guide the water vapor away from the product to be transported.

[0008] Furthermore, the bottom plate includes two bottom plate bodies arranged in parallel, and the upper bottom plate body is connected to the side plate;

[0009] The two bottom plate bodies are connected via a plurality of cross rods.

[0010] Furthermore, a boss is provided on the inner wall of the upper bottom plate body, and the product to be transported is placed on the boss.

[0011] Furthermore, the inner wall of the side plate is provided with a plurality of through holes;

[0012] The moisture absorbing component is provided on the inner side of the side plate;

[0013] The moisture absorption component comprises a box body and a moisture dissipation layer, wherein silica gel particles are arranged in the box body; and the moisture dissipation layer is close to the side plate.

[0014] Furthermore, it also includes a waterproof component, which is arranged in the closed box and connected to the top plate;

[0015] The waterproof assembly can be shaken in the closed box, and the waterproof assembly can prevent water on the top plate from directly dripping onto the products to be transported.

[0016] Furthermore, the waterproof assembly includes a waterproof cloth, the center of which is connected to the top plate via a rope, and the waterproof cloth is also connected to the top plate via a top spring.

[0017] Furthermore, the waterproof cloth comprises a first cloth body and a second cloth body, the first cloth body is arranged on the top layer, and the area of ​​the first cloth body is larger than the area of ​​the second cloth body;

[0018] The first fabric body can expand by absorbing water;

[0019] The second fabric body is waterproof.

[0020] Further, it also includes an elastic plate;

[0021] The elastic plate comprises a plate body, and the plate body is connected to the outer side wall of the side plate through a side spring;

[0022] The plate body is also connected to the outer side wall of the side plate through a guide bar, and the plate body can slide relative to the guide bar;

[0023] One end of the guide strip is fixed to the side plate.

[0024] Furthermore, it also includes a fan assembly, which is connected to the side panel and the panel body at the same time. When the side panel approaches or moves away from the panel body, the fan assembly can be driven to rotate to generate airflow.

[0025] Further, the fan assembly includes a bearing plate and a rack;

[0026] The bearing plate is provided with a gear fan, a moving gear and a power gear in sequence, the top end of the gear fan is a fan, and the bottom end of the gear fan is a gear;

[0027] The bearing plate is provided with a strip hole, and the shaft of the moving gear is arranged in the strip hole, so that the moving gear can be close to or away from the gear fan;

[0028] The rack is arranged on the plate body, and the rack is in contact with the power gear.

[0029] Beneficial effects: The present invention has two functions by providing a large-area top plate. The first function is to form a structure similar to an eave. When it rains during loading and unloading of packaging boxes, the water on the top can be directly dripped from the edge of the top plate to the ground, preventing water from flowing through the side plates to the bottom plate. The second function is that when loading, it can ensure that there is a gap between the side plates and other packaging boxes, which increases air circulation, prevents water vapor from accumulating around the packaging box, and reduces the risk of moisture in the packaging box. By providing a moisture absorption component, the water vapor in the packaging box can be adsorbed to prevent the water vapor from affecting the products to be transported in the packaging box. The moisture absorption component can also unidirectionally guide the water vapor, which has two benefits. The first benefit is that it can make the water vapor in the packaging box flow to prevent the water vapor from accumulating at the bottom of the box, and it can also guide the water vapor around the product to play a moisture-proof role. The second benefit is that it can effectively prevent water vapor from entering the packaging box, so that the packaging box can remain dry for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] in:

[0032] Figure 1 This is a schematic diagram of the overall structure of a moisture-proof packaging box in one embodiment of the present invention;

[0033] Figure 2 A top view of a moisture-proof packaging box in one embodiment of the present invention;

[0034] Figure 3 for Figure 2 Screenshot of the middle AA direction;

[0035] Figure 4 A partial cross-sectional view of a moisture-proof packaging box at an angle in one embodiment of the present invention;

[0036] Figure 5 for Figure 4 A partial enlarged view of part B;

[0037] Figure 6A partial cross-sectional view of a moisture-proof packaging box at another angle in one embodiment of the present invention;

[0038] Figure 7 A schematic diagram of the overall structure of a fan assembly and an elastic plate in one embodiment of the present invention;

[0039] Figure 8 It is a structural schematic diagram of a part of a fan assembly in one embodiment of the present invention;

[0040] Fig. 9 A partial cross-sectional view of a portion of a fan assembly in one embodiment of the present invention;

[0041] In the figure, 1, box body; 11, top plate; 12, side plate; 121, through hole; 13, bottom plate; 131, bottom plate body; 132, boss; 133, cross rod;

[0042] 2. elastic plate; 21. side spring; 22. plate body; 221. notch; 23. guide strip;

[0043] 3. Fan assembly; 31. Carrying plate; 311. Strip hole; 32. Gear fan; 33. Rack; 34. Moving gear; 35. Power gear;

[0044] 4. moisture absorption component; 41. silica gel particles; 42. box body; 421. moisture absorption hole; 43. moisture discharge layer;

[0045] 5. Waterproof assembly; 51. Rope; 52. Top spring; 53. Waterproof cloth; 531. First cloth body; 532. Second cloth body. DETAILED DESCRIPTION

[0046] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] refer to Figure 1 to Figure 9 The present invention discloses a moisture-proof packaging box, which includes a box body 1 and a moisture-absorbing component 4. The box body can be selected as a metal box body or a wooden box body, preferably a wooden box body, because the wooden box body itself has certain shock resistance and moisture resistance, which is suitable for most products. Taking four side panels 12 as an example, in the present invention, three side panels are first connected to form a semi-enclosed box, and then the product is placed in the semi-enclosed box and the position is adjusted. The last side panel 12 is fixed. Then the top panel 11 is covered and fixed. The fixed connecting piece can be selected as a nail.

[0048] The box body 1 includes a top plate 11, a bottom plate 13 and a plurality of side plates 12, which are connected to form a closed box, and the products to be transported are placed in the closed box. The products to be transported are mainly products that need to be moisture-proof, such as experimental instruments, and are hereinafter referred to as products. The area of ​​the top plate 11 is larger than that of the bottom plate 13, and the top plate 11 protrudes from the side plates 12. The top plate 11 can only protrude to the opposite sides, like Figure 1 As shown in FIG. 1 . The top plate 11 can also protrude in all directions, which is specifically set according to the products to be transported. If the product needs to be moisture-proof, the top plate 11 can protrude in all directions. Generally, the product that needs moisture-proof can protrude on both sides. The protruding top plate 11 can also shield the elastic plate 2 and the fan assembly 3.

[0049] A moisture absorption component 4 is provided inside the closed box, and the moisture absorption component 4 can absorb water vapor. The moisture absorption component 4 that absorbs water vapor can be activated carbon, because activated carbon has a highly developed pore structure and a huge specific surface area, which makes it have a strong adsorption capacity and can effectively absorb water vapor in the air. It can also be silica gel, because there are many tiny pores inside silica gel, which can absorb a large amount of water vapor through physical adsorption. It can also be a molecular sieve, which is a kind of aluminosilicate crystal with a uniform microporous structure, and its pore size is uniform and fixed, and can selectively adsorb according to the size and shape of the molecule. It has a strong adsorption capacity for water vapor and can be used for deep drying of gas and liquid.

[0050] The moisture absorbing component 4 can also unidirectionally guide water vapor away from the product to be transported. The moisture absorbing component 4 that unidirectionally guides water vapor can be a fiber material, such as a fiber material with a publication number of CN116124746A. It can also be a capillary material, such as a capillary material with a publication number of CN216571148U and a capillary material with a publication number of CN115648446A. It can also be a fabric, such as a fabric with a publication number of CN 220973585U. It can also be a film material, such as a film with a publication number of CN115851471A.

[0051] The present invention has two functions by setting a large-area top plate 11. The first function is to form a structure similar to an eave. When it rains during loading and unloading of packaging boxes, the water on the top can be directly dripped from the edge of the top plate 11 to the ground, preventing water from flowing through the side plate 12 to the bottom plate 13. The second function is that when loading, it can ensure that there is a gap between the side plate 12 and other packaging boxes, increase air circulation, avoid water vapor accumulation around the packaging box, and reduce the risk of moisture in the packaging box. By setting a moisture absorption component 4, the water vapor in the packaging box can be adsorbed to prevent the water vapor from affecting the products to be transported in the packaging box. The moisture absorption component 4 can also unidirectionally guide the water vapor, which has two advantages. The first advantage is that it can make the water vapor in the packaging box flow to prevent the water vapor from accumulating at the bottom of the box, and it can also guide the water vapor around the product to play a moisture-proof role. The second advantage is that it can effectively prevent water vapor from entering the packaging box, so that the packaging box can be kept dry for a long time.

[0052] refer to Figure 1 , Figure 3 , Figure 4 and Figure 6 In a specific embodiment, the bottom plate 13 includes two bottom plate bodies 131 arranged in parallel, and the two bottom plate bodies 131 are arranged in double layers up and down to form a double-layer bottom plate. The upper bottom plate body 131 is connected to the side plate 12. The two double-layer bottom plate bodies 131 are connected by a plurality of cross rods 133.

[0053] In this embodiment, the double-layer bottom plate has two functions. The first function is moisture-proof. The bottom plate body 131 of the lower layer of the double-layer bottom plate directly contacts the ground or other surfaces. Even if there is water or moisture on the ground, it will not directly affect the packaging box itself. In addition, if there is water or water vapor in the double-layer bottom plate, it can be discharged as soon as possible because the multiple cross rods 133 have a large surface area, which is conducive to the discharge of water vapor. The second function is puncture prevention. When loading and unloading packaging boxes, sometimes there are some hard objects like stones on the ground or the bottom surface of the truck compartment, which can easily damage the bottom plate 13 and cause gaps in the bottom plate 13. The gaps will allow water vapor to enter the packaging box and affect the product. With a double-layer bottom plate, even if there are gaps in the lower bottom plate body 131, water vapor will not enter the packaging box. The shape of the cross rod 133 in this application is X-shaped, and grooves or through holes can be set on the surface of the cross rod 133 to further increase the surface area, which is conducive to the drying of water vapor. The material of the cross rod 133 can be hydrophobic materials such as stainless steel, aluminum alloy and polytetrafluoroethylene. By providing the cross rods 133 , the surface area between the two layers of the bottom plate body 131 is increased, which is beneficial to the drying of the water vapor in the bottom plate 13 .

[0054] refer to Figure 3 and Figure 4In a specific embodiment, a boss 132 is provided on the inner wall of the upper bottom plate body 131, and the product to be transported is placed on the boss 132. By providing the boss 132, a certain distance is provided between the product and the bottom plate 13 of the packaging box, and water vapor has a tendency to gather toward the bottom plate 13. Even if water vapor gathers at the bottom of the packaging box, it has little impact on the product. In addition, if the packaging box leaks, water will accumulate on the bottom plate 13. Providing the boss 132 can prevent water from contacting the product in the first place, thereby protecting the product. The material of the boss 132 can be wood. There are many tiny pores and fibers in the cell structure of wood, which can absorb water vapor in the air.

[0055] refer to Figure 4~Figure 6 In a specific embodiment, the inner wall of the side plate 12 is provided with a plurality of through holes 121. The through holes 121 can discharge the water vapor in the packaging box to the outside of the packaging box.

[0056] The inner side of the side panel 12 is provided with a moisture absorbing component 4 .

[0057] The moisture absorption component 4 includes a box body 42 and a moisture-discharging layer 43. The box body 42 is provided with silica gel particles 41; the moisture-discharging layer 43 is close to the side panel 12. The box body 42 is a transparent strip box, and the box body 42 is detachably connected to the side panel 12, so as to facilitate the replacement of the silica gel particles 41. There are multiple box bodies 42, and the multiple box bodies 42 are arranged in parallel in the vertical direction. The surface of the box body 42 is provided with moisture absorption holes 421. The silica gel particles 41 absorb the water vapor in the packaging box through the moisture absorption holes 421 to achieve drying. The silica gel particles 41 are preferably color-changing silica gel, and the color-changing silica gel is first placed in a flexible net bag and then placed in the box body 42. The side panel 12 corresponding to the box body 42 is provided with raised nails, and the net bag and nails are not shown in the figure.

[0058] In this embodiment, by providing a box body 42 and silica gel particles 41, the water vapor in the packaging box can be adsorbed to achieve the drying function. The silica gel particles 41 are further limited to color-changing silica gel for two purposes. The first purpose is to be able to judge the state of the silica gel particles 41 in time. Because the color-changing silica gel is a silica gel in which cobalt chloride and other substances are added. Anhydrous cobalt chloride is blue. When the silica gel particles absorb water, the cobalt chloride combines with water to form a hydrate, which will gradually turn the silica gel particles pink. The water absorption degree of the silica gel particles can be intuitively judged by the color change, reminding people to replace or dry the silica gel particles in time to ensure its good water absorption performance. The color-changing silica gel cooperates with the transparent box body 42 to absorb water vapor to the greatest extent. The second purpose is to protect the product. Since a plurality of through holes 121 are provided on the side panel 12, its own strength will decrease. When it is hit by an external impact, it is easy to break, causing the side panel 12 to hit the product, which is easy to cause damage to the product. The box body 42 here can be selected as a very thin plastic, which can be broken with a small impact force. The color-changing silica gel is put into a flexible net bag, and the flexible net bag is placed into the box body 42. When the box body 42 is installed, the flexible net bag is easily hung on the nails. When the side panel 12 is broken, the box body 42 is also broken, and the flexible net bag droops under gravity. There is color-changing silica gel between the side panel 12 and the product. The color-changing silica gel is elastic and can absorb impact force to a certain extent, thereby protecting the product.

[0059] By setting the moisture-dissipating layer 43, according to actual needs, the moisture-dissipating layer 43 can be completely fitted with the side panel 12, which has the advantage of completely blocking external water vapor. Of course, there is a smaller gap between the moisture-dissipating layer 43 and the side panel 12, such as a gap of 1mm, 0.5mm or 0.3mm. The advantage of this is that the water vapor discharged from the moisture-dissipating layer 43 can flow better in the gap and then be discharged from the through hole 121. The moisture-dissipating layer 43 is preferably a fabric with a publication number of CN220973585U, and the inner layer of the fabric is made of water-repellent fiber, which forms an effect of water-repellent inside and water-absorbing outside, ensuring that the water vapor generated by the human body will form a one-way moisture-conducting effect from the inside to the outside.

[0060] refer to Figure 3 , Figure 4 and 6 In a specific embodiment, the moisture-proof packaging box further includes a waterproof component 5, which is arranged in the closed box and connected to the top plate 11. The waterproof component 5 can be selected as a conventional waterproof board or waterproof cloth, preferably waterproof cloth. The weight and cost of waterproof cloth are low.

[0061] The waterproof assembly 5 can shake in the closed box, and the waterproof assembly 5 can prevent water on the top plate 11 from directly dripping onto the products to be transported.

[0062] In actual transportation, even if a van is used for transportation, water may seep inward from the top of the van. Water that seeps into the interior of the car may fall on the top plate 11. In particular, when several packaging boxes are stacked vertically, there is more water on the top plate 11 of the bottom packaging box, which is easy to seep into the packaging box. The present invention can play a blocking role by providing a waterproof component 5 to prevent water from falling on the product and causing the product to get damp. By allowing the waterproof component 5 to shake, the waterproof component 5 shakes when the vehicle is driving, which can stir the air flow in the packaging box, and the water vapor can be adsorbed by the silica gel particles 41 or the water vapor can be discharged by the moisture-removing layer 43. The stirring of the waterproof component 5 can also reduce the tendency of water vapor to gather downward.

[0063] refer to Figure 3 In a specific embodiment, the waterproof assembly 5 includes a waterproof cloth 53, the center of which is connected to the top plate 11 through a rope 51, and the waterproof cloth 53 is also connected to the top plate 11 through a top spring 52. Specifically, the length of the top spring 52 is greater than or equal to the length of the rope 51, and the top spring 52 is arranged between the edge of the waterproof cloth 53 and the midpoint of the waterproof cloth 53. Preferably, the distance from the top spring 52 to the midpoint of the waterproof cloth 53 is equal to the distance from the top spring 52 to the edge of the waterproof cloth 53. In actual applications, the lengths of the top spring 52 and the rope 51 will not be particularly long, because the function of the waterproof cloth 53 is to block the moisture above, and the waterproof cloth 53 should be as close to the top plate 11 as possible to prevent interference with the water vapor absorption below.

[0064] This embodiment has three functions by setting the rope 51 and the top spring 52. The first function is to deal with a large amount of water leakage. Assume that the top plate 11 is hit and a large crack appears, and a large amount of water enters. At this time, the rope 51 will not be greatly deformed in the center, and at the same time, the top spring 52 will be deformed, so that a shape similar to the top of the arc will be formed, and the water will flow out in the direction of the side plate 12. In conjunction with the boss 132 at the bottom, it can prevent water from being directly sprinkled on the product, and temporarily protect the product. The second function is to effectively increase the air flow in the packaging box. Due to the provision of the top spring 52, when the car shakes, the waterproof cloth 53 will have a large deformation, so that the air in the packaging box has a large flow. In this way, water vapor can be effectively absorbed by the silica gel particles 41 or water vapor can be more easily discharged by the moisture-removing layer 43. The third function is that when the top plate 11 is broken and items fall into the packaging box, the top spring 52 can play a certain buffering role to prevent damage to the product.

[0065] refer to Figure 3 and Figure 4In a specific embodiment, the waterproof cloth 53 includes a first cloth body 531 and a second cloth body 532. The first cloth body 531 is arranged on the top layer, and the area of ​​the first cloth body 531 is larger than the area of ​​the second cloth body 532. The first cloth body 531 can swell after absorbing water. The second cloth body 532 is waterproof. Among them, the first cloth body 531 can be selected from a material that swells after absorbing water, for example, a water stop with a publication number of CN118581929A. The second cloth body 532 is a conventional waterproof cloth, such as a waterproof nylon cloth or a waterproof canvas.

[0066] In this embodiment, the first cloth body 531 is provided, which can expand after absorbing water. The expanded first cloth body 531 has the function of absorbing and blocking water. Figure 3 , the first cloth body 531 absorbs a large amount of water, which can prevent water from flowing onto the product. When the first cloth body 531 expands to a certain volume, it will be stuck on the box body 42. Since the first cloth body 531 itself also has a certain degree of waterproofness, the first cloth body 531 has formed a barrier on the top to prevent water from entering the packaging box and causing damage to the product. The purpose of setting the second cloth body 532 is to further waterproof. By setting the area of ​​the first cloth body 531 to be larger than the area of ​​the second cloth body 532, on the one hand, it is to increase the amount of water absorption and try to make the water be completely absorbed by the first cloth body 531; on the other hand, if the area of ​​the first cloth body 531 is relatively large, after absorbing water, the edge of the first cloth body 531 will fall on the bottom plate 13. Since the rope 51 fixes the center of the first cloth body 531 on the top plate 11, a protective space of the type n will be formed to prevent water from entering and protect the product. There is another situation. Assuming that the rope 51 and the top spring 52 are broken after the top plate 11 is broken, the waterproof cloth 53 will cover the product at this time, which can also provide waterproof protection.

[0067] refer to Figure 1 , Figure 3 and Figure 4 In a specific embodiment, the moisture-proof packaging box further includes an elastic plate 2. The number of the elastic plates 2 is set as required, and can be 1, 2, 3 or 4. For products with high moisture-proof requirements, more elastic plates 2 are provided. A top plate 11 is required to shield the elastic plates 2 to prevent water from falling on the elastic plates 2.

[0068] The elastic plate 2 includes a plate body 22 , and the plate body 22 is connected to the outer side wall of the side plate 12 through the side spring 21 .

[0069] The plate body 22 is also connected to the outer side wall of the side plate 12 through a guide bar 23, and the plate body 22 can slide relative to the guide bar 23. One end of the guide bar 23 is fixed to the side plate 12.

[0070] In this embodiment, by providing the plate body 22 and the side spring 21, the plate body 22 can move closer to or farther from the side plate 12 as the carriage shakes. In this way, the air flow outside the side plate 12 can be increased, so that water vapor can flow and prevent accumulation at the bottom of the packaging box. By providing the guide strip 23, the plate body 22 can be limited so that it is fixed in the vertical direction and can only slide in the horizontal direction. It is convenient for the plate body 22 to move closer to or farther from the side plate 12, which increases the effect of air flow and prevents water vapor accumulation. In addition, the side spring 21 can also move along the axial direction, extending the service life.

[0071] refer to Figure 3 , Figure 7 , Figure 8 and Fig. 9 In a specific embodiment, the moisture-proof packaging box further includes a fan assembly 3, which is connected to the side panel 12 and the plate body 22 at the same time. When the side panel 12 is close to or away from the plate body 22, the fan assembly 3 can be driven to rotate to generate airflow. Specifically, the side panel 12 can only drive the fan assembly 3 to rotate in one state, that is, the first state: when the side panel 12 is close to the plate body 22, it can give force to the fan assembly 3 to rotate, and when the side panel 12 is away from the plate body 22, no force is applied to the fan assembly 3; the second state is that when the side panel 12 is away from the plate body 22, it can give force to the fan assembly 3 to rotate, and when the side panel 12 is close to the plate body 22, no force is applied to the fan assembly 3. The airflow direction provided by the fan assembly 3 can be set according to the actual situation, which can be upward flow or downward flow.

[0072] This embodiment can further accelerate the air flow by providing the fan assembly 3, so that the water vapor on the outer wall of the side plate 12 can evaporate quickly, thus ensuring the dryness of the packaging box. Figure 4 When the fan assembly 3 blows air upward, the fan assembly 3 at the bottom blows air upward, and the passage between the plate body 22 and the side plate 12 is relatively narrow, which allows the gas to pass quickly and take out the water vapor; at the same time, the fan assembly 3 at the bottom forms a suction force on the bottom, which can increase the flow of the bottom air, and then take away the water vapor in the double-layer bottom plate, keeping the bottom of the packaging box dry. Setting the fan assembly 3 can largely overcome the problem of water vapor gathering at the bottom of the packaging box.

[0073] refer to Figure 7~Figure 9 In a specific embodiment, the fan assembly 3 includes a bearing plate 31 and a rack 33. A notch 221 is provided on the plate body 22, and the notch 221 serves as a relief opening for accommodating the fan assembly 3.

[0074] A gear fan 32 , a moving gear 34 and a power gear 35 are sequentially arranged on the bearing plate 31 . The top end of the gear fan 32 is a fan, and the bottom end of the gear fan 32 is a gear.

[0075] The bearing plate 31 is provided with a strip hole 311, and the shaft of the moving gear 34 is arranged in the strip hole 311, so that the moving gear 34 can be close to or away from the gear fan 32. Figure 8 An interception bar is provided on the outer side of the bottom of the moving gear 34 to prevent the moving gear 34 from falling. At the same time, the moving gear 34 can move horizontally.

[0076] The rack 33 is arranged on the plate body 22, and the rack 33 contacts the power gear 35. Specifically, the rack 33 is fixed on the side wall of the notch 221, and the movement of the plate body 22 can drive the rack 33 to move.

[0077] The working process of the fan assembly 3 is as follows: Figure 7~Figure 8 For ease of description, all questions involving the direction of rotation are expressed as Figure 8 As a benchmark.

[0078] When the plate body 22 moves away from the side plate 12, the rack 33 also moves away from the side plate 12, and the rack 33 pulls the power gear 35 to rotate clockwise. When the power gear 35 rotates, it gives a force to the mobile gear 34, so that the mobile gear 34 horizontally approaches the gear fan 32 along the strip hole 311 and meshes with the gear of the gear fan 32. The mobile gear 34 continues to rotate clockwise, which drives the mobile gear 34 to rotate counterclockwise, and the mobile gear 34 drives the gear fan 32 to rotate clockwise, thereby generating an upward airflow.

[0079] When the plate body 22 moves toward the side plate 12, the rack 33 also approaches the side plate 12, and the rack 33 pushes the power gear 35 to rotate counterclockwise. When the power gear 35 rotates, it gives a force to the moving gear 34, so that the moving gear 34 moves horizontally away from the gear fan 32 along the strip hole 311 and disengages from the gear of the gear fan 32. The moving gear 34 continues to rotate counterclockwise, which drives the moving gear 34 to rotate clockwise, but the moving gear 34 is disengaged from the gear fan 32. Even if the moving gear 34 rotates, it does not affect the gear fan 32.

[0080] In this embodiment, the strip hole 311 is provided so that the shaft of the moving gear 34 can move in the strip hole 311. Even if the plate body 22 makes a reciprocating motion, the gear fan 32 can always rotate in the same direction, so that the airflow flows quickly.

[0081] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A moisture-proof packaging box, characterized in that: It comprises a box body (1) and a moisture absorption component (4); The box body (1) comprises a top plate (11), a bottom plate (13) and a plurality of side plates (12); the top plate (11), the bottom plate (13) and the plurality of side plates (12) are connected to form a closed box, and the product to be transported is placed in the closed box; the area of ​​the top plate (11) is larger than the area of ​​the bottom plate (13), and the top plate (11) protrudes from the side plates (12); The interior of the closed box is provided with the moisture absorbing component (4), which is capable of absorbing water vapor and can also unidirectionally guide the water vapor away from the product to be transported; It also includes a waterproof component (5), the waterproof component (5) is arranged in the closed box, and the waterproof component (5) is connected to the top plate (11); The waterproof component (5) can shake in the closed box, and the waterproof component (5) can prevent water on the top plate (11) from dripping directly onto the product to be transported; The waterproof assembly (5) comprises a waterproof cloth (53), the center of the waterproof cloth (53) is connected to the top plate (11) via a rope (51), and the waterproof cloth (53) is also connected to the top plate (11) via a top spring (52).

2. The moisture-proof packaging box according to claim 1, characterized in that: The bottom plate (13) comprises two bottom plate bodies (131) arranged in parallel, and the upper bottom plate body (131) is connected to the side plate (12); The two bottom plate bodies (131) are connected via a plurality of cross rods (133).

3. The moisture-proof packaging box according to claim 2, characterized in that: A boss (132) is provided on the inner wall of the bottom plate body (131) of the upper layer, and the product to be transported is placed on the boss (132).

4. The moisture-proof packaging box according to claim 1, characterized in that: The inner wall of the side plate (12) is provided with a plurality of through holes (121); The moisture absorbing component (4) is provided on the inner side of the side panel (12); The moisture absorption component (4) comprises a box body (42) and a moisture discharge layer (43), wherein silica gel particles (41) are arranged in the box body (42); and the moisture discharge layer (43) is close to the side plate (12).

5. The moisture-proof packaging box according to claim 1, characterized in that: The waterproof cloth (53) comprises a first cloth body (531) and a second cloth body (532), wherein the first cloth body (531) is arranged on the top layer, and the area of ​​the first cloth body (531) is larger than the area of ​​the second cloth body (532); The first cloth body (531) is able to expand by absorbing water; The second fabric body (532) is waterproof.

6. The moisture-proof packaging box according to claim 1, characterized in that: Also includes an elastic plate (2); The elastic plate (2) comprises a plate body (22), and the plate body (22) is connected to the outer side wall of the side plate (12) via a side spring (21); The plate body (22) is also connected to the outer side wall of the side plate (12) via a guide strip (23), and the plate body (22) can slide relative to the guide strip (23); One end of the guide strip (23) is fixed to the side plate (12).

7. The moisture-proof packaging box according to claim 6, characterized in that: It also comprises a fan assembly (3), wherein the fan assembly (3) is connected to the side plate (12) and the plate body (22) at the same time, and when the side plate (12) approaches or moves away from the plate body (22), the fan assembly (3) can be driven to rotate, thereby generating airflow.

8. The moisture-proof packaging box according to claim 7, characterized in that: The fan assembly (3) comprises a bearing plate (31) and a rack (33); The bearing plate (31) is provided with a gear fan (32), a moving gear (34) and a power gear (35) in sequence, the top end of the gear fan (32) is a fan, and the bottom end of the gear fan (32) is a gear; The bearing plate (31) is provided with a strip-shaped hole (311), and the shaft of the moving gear (34) is arranged in the strip-shaped hole (311), so that the moving gear (34) can be close to or away from the gear fan (32); The rack (33) is arranged on the plate body (22), and the rack (33) is in contact with the power gear (35).

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