A tobacco leaf storage device

Abstract

The utility model relates to the field of tobacco leaf processing technology discloses a kind of tobacco storage device, including storage box and humidity sensor, and first air inlet and second air inlet are provided on storage box, the side of two partitions away from each other is provided with air passage, first air inlet and second air inlet are communicated with air passage, and fan is provided at second air inlet, and air hole is provided on two partitions, and air passage is communicated with placing cavity by air hole;The detection end of humidity sensor is placed in placing cavity, and humidity sensor is connected with fan by electric signal.The first air inlet is as natural air hole, and the second air inlet is as forced air inlet, to realize passive and active double ventilation mode, humidity sensor real-time monitoring humidity in placing cavity, and can send electric signal to open and close fan, double ventilation mode combines humidity sensor, ensure that humidity is maintained in optimal interval, avoid that humidity is too high or too low to cause damage to tobacco, effectively improve the overall quality of tobacco.

Description

Technical Field

[0001] This utility model relates to the field of tobacco processing technology, and in particular to a tobacco storage device. Background Technology

[0002] Tobacco leaves are highly susceptible to mold, deliquescence, or insect infestation during storage due to environmental humidity, temperature, and pests, leading to severe quality degradation and significant economic losses. While room temperature can be controlled to improve storage conditions, tobacco undergoes a natural ripening process during storage, known as "aging" or "maturation." This process alters the chemical composition and physical properties of the tobacco leaves, improving their quality. However, this process requires trace amounts of oxygen to produce trace amounts of carbon dioxide and moisture. Therefore, humidity levels during storage are uncontrollable. To prevent excessive moisture, mold, and insect infestation that could degrade tobacco quality, targeted and controlled moisture-proofing treatments are necessary.

[0003] Currently, tobacco farmers and small to medium-sized warehouses generally use plastic bags, woven bags, or ordinary wooden boxes for storage, and place simple items such as lime packets and mothballs for moisture and insect prevention. However, this method of moisture control is uncontrollable and may result in incomplete dehumidification. Existing technology also uses blowers to air dry the tobacco leaves, but excessive use of blowers may lead to over-ventilation, causing the tobacco leaves to become over-dryed and brittle, thus affecting the quality of the tobacco leaves.

[0004] Therefore, there is an urgent need for a tobacco leaf storage device to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a tobacco leaf storage device that can efficiently prevent moisture and dehumidify.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A tobacco leaf storage device, comprising:

[0008] A storage box includes a shell extending along a first direction and two partitions. The two partitions are located inside the shell and spaced apart along a second direction. The storage box is provided with a first air inlet and a second air inlet. A ventilation duct is provided on the side of the two partitions that are far apart from each other. The first air inlet and the second air inlet are both connected to the ventilation duct. A fan is provided at the second air inlet. A placement cavity is provided on the side of the two partitions that are close to each other. The placement cavity is used to store tobacco leaves. Ventilation holes are provided on both partitions. The ventilation duct is connected to the placement cavity through the ventilation holes.

[0009] A humidity sensor is provided, which is mounted on the storage box and its detection end is placed inside the placement cavity. The humidity sensor is connected to the fan via an electrical signal.

[0010] Preferably, the storage box further includes a door panel and a rear cover, the door panel and the rear cover being spaced apart along the first direction and respectively connected to the housing, the two partitions, the door panel and the rear cover surrounding to form the placement cavity.

[0011] Preferably, the housing is provided with a first opening and a second opening at both ends along the first direction, the door panel is connected to one end of the housing and covers part of the first opening, the rear cover is connected to the other end of the housing and covers part of the second opening, and the first air inlet is provided at both the first opening and the second opening.

[0012] Preferably, the storage box further includes an air duct extending along the second direction, the air duct being connected to the side wall of the housing, the second air inlet being located at the end of the air duct away from the housing, a third opening being provided on the side wall of the housing, the inner cavity of the air duct communicating with the third opening, and the fan being located inside the air duct.

[0013] Preferably, the third opening is directly opposite the ventilation hole in the second direction.

[0014] Preferably, the tobacco storage device further includes a protective net, which is disposed on the partition and covers the ventilation holes.

[0015] Preferably, the tobacco storage device further includes a sealing assembly, which includes a sealing cover and a sealing ring connected to each other. The sealing cover is detachably disposed on the partition, and the sealing ring is disposed on the side of the sealing cover near the partition to block the ventilation hole.

[0016] Preferably, the sealing cover is provided with a magnetic element on the side near the partition, and the magnetic element can be attracted to the partition.

[0017] Preferably, the tobacco storage device further includes a hanging assembly disposed inside the storage box for hanging the tobacco leaves. The hanging assembly includes a hanging rod and a rod sleeve extending along the first direction, and the rod sleeve is slidably fitted onto the outside of the hanging rod.

[0018] Preferably, the sleeve is provided with at least two slots, and the at least two slots are spaced apart along the first direction, with each slot arranged along the circumference of the sleeve.

[0019] The beneficial effects of this utility model are:

[0020] This utility model proposes a tobacco leaf storage device, including a storage box and a humidity sensor. The storage box includes a shell extending along a first direction and two partitions. The two partitions are located inside the shell and are spaced apart along a second direction. The storage box is provided with a first air inlet and a second air inlet. A ventilation duct is provided on the side of the two partitions that are far apart from each other. The first air inlet and the second air inlet are both connected to the ventilation duct, and a fan is provided at the second air inlet. A placement cavity is provided on the side of the two partitions that are close to each other. The placement cavity is used to store tobacco leaves. Ventilation holes are provided on both partitions, and the ventilation duct is connected to the placement cavity through the ventilation holes. The humidity sensor is installed on the storage box, and the detection end of the humidity sensor is placed inside the placement cavity. The humidity sensor is connected to the fan via an electrical signal. In this tobacco storage device, the first air inlet serves as a natural ventilation hole, while the second air inlet is equipped with a fan as a forced air inlet, achieving a dual ventilation mode of passive and active ventilation. A humidity sensor monitors the humidity inside the storage chamber in real time and can send an electrical signal to turn the fan on and off. The dual ventilation mode, combined with the real-time detection by the humidity sensor, ensures that the humidity is maintained within the optimal range, avoiding damage to the tobacco leaves caused by excessively high or low humidity, and effectively improving the flexibility, color, and overall quality of the tobacco leaves. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the tobacco leaf storage device proposed in this utility model from one perspective;

[0022] Figure 2 This is a structural schematic diagram of the tobacco leaf storage device proposed in this utility model from another perspective;

[0023] Figure 3 This is a schematic diagram of the shell and partition in the tobacco leaf storage device proposed in this utility model;

[0024] Figure 4 This is a cross-sectional view of the tobacco leaf storage device proposed in this utility model;

[0025] Figure 5 yes Figure 4 A magnified view of a section at point A in the middle;

[0026] Figure 6 yes Figure 4 A magnified view of a section at point B in the middle;

[0027] Figure 7 This is a schematic diagram of the control circuit for the controller, temperature sensor, and fan in the tobacco storage device proposed in this utility model.

[0028] In the picture:

[0029] 1. Storage box; 11. Shell; 111. First opening; 112. Second opening; 113. Third opening; 12. Partition; 121. Ventilation hole; 13. Fan; 14. Door panel; 141. Handle; 15. Back cover; 16. Air duct; 17. Support leg; 2. Humidity sensor; 3. Protective net; 4. Sealing assembly; 41. Sealing cover; 42. Sealing ring; 43. Magnetic suction; 5. Hanging assembly; 51. Hanging rod; 52. Rod sleeve; 521. Slot; 6. Controller; 10. First air inlet; 20. Second air inlet; 30. Ventilation duct; 40. Placement cavity; 100. Tobacco leaves. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] Example 1

[0035] Reference Figures 1 to 7 This embodiment proposes a tobacco leaf storage device, including a storage box 1 and a humidity sensor 2. The storage box 1 includes a shell 11 extending along a first direction and two partitions 12. The two partitions 12 are located inside the shell 11 and are spaced apart along a second direction. The storage box 1 is provided with a first air inlet 10 and a second air inlet 20. A ventilation duct 30 is provided on the side of the two partitions 12 that is far apart from each other. The ventilation duct 30 is defined as the area formed by the side of the two partitions 12 that is far apart from each other and the inner wall of the shell 11. Both the air inlet 10 and the second air inlet 20 are connected to the ventilation duct 30, and a fan 13 is provided at the second air inlet 20. A placement cavity 40 is provided on one side of the two partitions 12 that are close to each other. The placement cavity 40 is used to store tobacco leaves 100. Both partitions 12 are provided with ventilation holes 121. The ventilation duct 30 and the placement cavity 40 are connected through the ventilation holes 121. The humidity sensor 2 is installed on the storage box 1, and the detection end of the humidity sensor 2 is placed in the placement cavity 40. The humidity sensor 2 is connected to the fan 13 through an electrical signal. In this tobacco leaf storage device, the first air inlet 10 serves as a natural air inlet, while the second air inlet 20 is equipped with a fan 13 as a forced air inlet, achieving a dual ventilation mode of passive and active ventilation. The humidity sensor 2 monitors the humidity inside the storage chamber 40 in real time and can send an electrical signal to turn the fan 13 on and off. The dual ventilation mode, combined with the real-time detection by the humidity sensor 2, ensures that the humidity is maintained within the optimal range, avoiding damage to the tobacco leaves 100 caused by excessively high or low humidity, and effectively improving the flexibility, color, and overall quality of the tobacco leaves 100.

[0036] The first air inlet 10 serves as a non-powered air inlet, utilizing ambient temperature and pressure differences for natural airflow circulation, maintaining moderate humidity within the placement chamber 40 to dehumidify the tobacco leaves 100. The second air inlet 20 acts as a forced air inlet, with its fan 13 activated when needed to provide high-speed airflow for forced dehumidification of the tobacco leaves 100 within the placement chamber 40. Specifically, in application, when the humidity sensor 2 detects that the humidity within the placement chamber 40 exceeds a threshold, the fan 13 activates, providing forced ventilation through the second air inlet 20 to achieve rapid dehumidification. When the humidity sensor 2 detects that the humidity within the placement chamber 40 is below the threshold, the fan 13 deactivates, and natural ventilation through the first air inlet 10 utilizes ambient airflow to meet the dehumidification requirements of the tobacco leaves 100. This dual ventilation mode, combined with real-time detection by the humidity sensor 2, ensures that the humidity of the tobacco leaves 100 within the placement chamber 40 remains within the optimal range, achieving controllable moisture control and preventing incomplete or excessive dehumidification. Optionally, the threshold can be set according to the characteristics of the tobacco leaf 100 itself.

[0037] Furthermore, the tobacco storage device also includes a controller 6, the output of which is connected to the fan 13. The controller 6 is configured to control the fan 13 to turn on when the humidity sensor 2 detects that the humidity is greater than the threshold, and to control the fan 13 to turn off when the humidity sensor 2 detects that the humidity is less than the threshold, thereby achieving a high degree of automation.

[0038] Optionally, the storage box 1 further includes a door panel 14 and a rear cover 15. The door panel 14 and the rear cover 15 are spaced apart along a first direction and connected to the housing 11. The two partitions 12, the door panel 14, and the rear cover 15 enclose a placement cavity 40. The housing 11 is a hollow tubular shell, with the first direction being horizontal. The door panel 14 and the cover are spaced apart along the first direction and connected to the housing 11. At this time, the two cover plates, the door panel 14, and the rear cover 15 form a placement cavity 40 for storing tobacco leaves 100. Optionally, the rear cover 15 is a closed plate, fixedly mounted on the housing 11, while the door panel 14 is movably mounted on the housing 11. During use, the door panel 14 is in a closed state. When it is necessary to take out or put in tobacco leaves 100, the door panel 14 can be opened. The door panel 14 is also provided with a handle 141 to facilitate the opening and closing of the door panel 14 by the operator. In this embodiment, the door panel 14 is rotatably connected to the housing 11.

[0039] Furthermore, referring to Figure 3The housing 11 has a first opening 111 and a second opening 112 at both ends along the first direction. The door panel 14 is connected to one end of the housing 11 and covers part of the first opening 111. The rear cover 15 is connected to the other end of the housing 11 and covers part of the second opening 112. A first air inlet 10 is provided at both the first opening 111 and the second opening 112. The housing 11 is a hollow tube shell with a first opening 111 and a second opening 112 at both ends. The door panel 14 and the rear cover 15 are connected to the first opening 111 and the second opening 112 of the housing 11, respectively, forming a placement cavity 40. The two partitions 12 are connected to the inner sidewalls of the housing 11. When the door panel 14 and the rear cover 15 are connected to the first opening 111 and the second opening 112 of the housing 11, the upper and lower ends of the door panel 14 abut against the ends of the two partitions 12 near the first opening 111, and the lower ends of the rear cover 15 abut against the ends of the two partitions 12 near the second opening 112. At this time, the first opening 111 still has an area not covered by the door panel 14, which serves as the first air inlet 10, and the second opening 112 also has an area not covered by the rear cover 15, which also serves as the first air inlet 10. It needs to be explained that, of the two partitions 12, the upper partition 12, on the side away from the lower partition 12, has a ventilation duct 30. Two first air inlets 10 are located on this side, spaced apart along a first direction. Airflow enters the ventilation duct 30 from the two first air inlets 10, and then enters the placement cavity 40 through the ventilation holes 121 of the upper partition 12; this is the first air inlet channel. Conversely, the lower partition 12, on the side away from the upper partition 12, has a ventilation duct 30. Two air outlets are located on this side, spaced apart along a first direction. Airflow in the placement cavity 40 enters the ventilation duct 30 through the ventilation holes 121 of the lower partition 12, and then exits to the outside through the air outlets; this is the air outlet channel. The first air inlet channel and the air outlet channel pass through the upper and lower partitions 12 respectively, without interfering with each other, avoiding crossing, causing airflow turbulence, and affecting ventilation efficiency.

[0040] Additionally, the storage box 1 includes an air duct 16 extending along a second direction. The air duct 16 is connected to the side wall of the housing 11. A second air inlet 20 is located at the end of the air duct 16 away from the housing 11. A third opening 113 is provided on the side wall of the housing 11. The inner cavity of the air duct 16 communicates with the third opening 113. A fan 13 is located inside the air duct 16. The second direction is perpendicular to the first direction and is vertical. Two partitions 12 are spaced apart along the second direction. When forced air intake is required, the fan 13 is turned on, and the airflow enters the air duct 16 from the second air inlet 20, then enters the ventilation duct 30 through the third opening 113, and then enters the placement cavity 40 through the ventilation hole 121. This is the second air intake channel. Optionally, the third opening 113 is located on the side wall of the housing 11 and on the side near the upper partition 12. Therefore, the first air inlet channel and the second air inlet channel are located on the same side and both pass through the ventilation hole 121 of the upper partition 12, avoiding the intersection of the second air inlet channel and the air outlet channel, which would cause airflow turbulence and affect ventilation efficiency.

[0041] Furthermore, the third opening 113 is directly opposite the ventilation hole 121 in the second direction. When forced air intake is required, the fan 13 is turned on, and the airflow enters the air duct 16 from the second air inlet 20, then enters the ventilation duct 30 through the third opening 113, and then enters the placement cavity 40 through the ventilation hole 121. The third opening 113 and the ventilation hole 121 are directly opposite each other, forming a straight airflow path, which increases the airflow speed and helps to quickly ventilate and exchange air, thereby maximizing the dehumidification efficiency.

[0042] During ventilation, to prevent foreign objects or pests from entering the storage chamber 40 through the ventilation holes 121, the tobacco storage device also includes a protective net 3. The protective net 3 is installed on the partition 12 and covers the ventilation holes 121. The net 3, through its mesh design, directly blocks pests from entering the ventilation holes 121, reducing the risk of pests feeding on, laying eggs in, or contaminating the tobacco leaves 100 with their droppings, thus preventing the tobacco leaves 100 from becoming moldy, spoiled, or spreading diseases. At the same time, the mesh design allows for free airflow, ensuring uninterrupted ventilation. Optionally, the protective net 3 is made of a corrosion-resistant alloy, capable of withstanding high humidity environments and avoiding rust or blockage, thereby ensuring long-term ventilation and insect-proof performance. Two protective nets 3 are provided, each corresponding to a ventilation hole 121 on one of the two partitions 12.

[0043] The storage box 1 also includes support legs 17, which are located below the housing 11 to support the housing 11. In this embodiment, four support legs 17 are provided to form a stable support structure.

[0044] When this tobacco storage device is in operation, the storage box 1 is first placed in a storage chamber at a suitable temperature to ensure its stable placement. Then, the input terminal of the controller 6 is connected to the power supply. The humidity sensor 2 feeds back the humidity information within the storage chamber 40 to the controller 6, which displays the humidity information detected by the humidity sensor 2 to alert the operator. When the humidity sensor 2 detects that the humidity is greater than the threshold, the controller 6 controls the fan 13 to turn on for forced air intake. When the humidity sensor 2 detects that the humidity is less than the threshold, the controller 6 controls the fan 13 to turn off for natural air intake.

[0045] Example 2

[0046] Reference Figure 4 and Figure 5 In this embodiment, the tobacco storage device also includes a sealing assembly 4. The sealing assembly 4 includes a sealing cover plate 41 and a sealing ring 42 connected to each other. The sealing cover plate 41 is detachably mounted on the partition plate 12, and the sealing ring 42 is located on the side of the sealing cover plate 41 near the partition plate 12 to block the ventilation hole 121. When the tobacco leaves 100 need to ferment, ventilation should be avoided, and the storage cavity 40 needs to be sealed to prevent moisture from outside the storage box 1 from invading and reducing the aging effect of the tobacco leaves 100. Specifically, the door panel 14 is closed and the sealing cover plate 41 is connected to the partition plate 12, and the sealing ring 42 blocks the ventilation hole 121. At this time, the storage cavity 40 is completely sealed. The sealed storage cavity 40 can isolate the tobacco leaves 100 from the external environment, prevent external moisture and pests from entering the storage cavity 40, improve the stability of the tobacco leaves 100 during fermentation, and ensure the aging effect of the tobacco leaves 100. There are two sealing assemblies 4, and the two sealing assemblies 4 are set one-to-one with the ventilation holes 121 on the two partition plates 12.

[0047] Furthermore, a magnetic element 43 is provided on the side of the sealing cover 41 near the partition 12. The magnetic element 43 can be attracted to the partition 12 to achieve a detachable connection between the sealing cover 41 and the partition 12, which has the advantage of easy disassembly. For example, when ventilation is required, the sealing cover 41 needs to be removed to expose the ventilation hole 121. At this time, the operator only needs to open the door panel 14, then push the sealing cover 41 up through the ventilation hole 121 from inside the placement cavity 40, and then remove the sealing cover 41. The operation is simple. Of course, in other embodiments, the sealing cover 41 and the partition 12 can also be connected by a snap fastener.

[0048] Example 3

[0049] Reference Figure 4 and Figure 6In this embodiment, the tobacco leaf storage device also includes a hanging assembly 5, which is disposed inside the storage box 1 and used to hang the tobacco leaves 100. The hanging assembly 5 includes a hanging rod 51 and a rod sleeve 52 extending along a first direction. The rod sleeve 52 is slidably fitted onto the outside of the hanging rod 51. The hanging rod 51 can be specifically disposed on the rear cover 15 to realize the hanging of the tobacco leaves 100. Since the tobacco leaves 100 are usually in a multi-piece bundle structure after processing, if they are stacked and placed in the storage cavity 40, the air permeability may be poor due to mutual pressing. In particular, the bottom tobacco leaves 100 are prone to mold due to the accumulation of moisture and heat. Therefore, the hanging form is adopted to facilitate air circulation, ensure air permeability, and allow for orderly storage, reducing the compression between the tobacco leaves 100. The sleeve 52 is slidably fitted onto the hanging rod 51, allowing the tobacco leaves 100 to be hung on the sleeve 52 for easy storage and retrieval. Specifically, when the tobacco leaves 100 need to be hung, the sleeve 52 is first slid out from the hanging rod 51 to the outside of the storage box 1. At this time, the staff can hang the tobacco leaves 100 on the sleeve 52 outside the storage box 1. Then, the sleeve 52 is slid back into the hanging rod 51, thus completing the hanging of the tobacco leaves 100. When the tobacco leaves 100 need to be retrieved, the operation is reversed. The design of the sleeve 52 optimizes the storage and retrieval operation, allowing the staff to hang and retrieve the tobacco leaves 100 from outside the storage box 1, simplifying the operation process.

[0050] Furthermore, since multiple bundles of tobacco leaves 100 need to be suspended on each hanging rod 51, it is necessary to ensure the stability of the spacing between the multiple bundles of tobacco leaves 100 on the same hanging rod 51. Therefore, at least two slots 521 are provided on the rod sleeve 52, and the at least two slots 521 are spaced apart along the first direction. Each slot 521 is arranged along the circumference of the rod sleeve 52. The hooks on the tobacco leaves 100 can be locked inside the slots 521, thereby restricting the axial movement of the tobacco leaves 100 on the hanging rod 51, ensuring that the distance between two adjacent bundles of tobacco leaves 100 is constant, and thus ensuring that there is sufficient storage and ventilation space between two adjacent bundles of tobacco leaves 100. In this embodiment, nine slots 521 are provided on each rod sleeve 52, that is, nine bundles of tobacco leaves 100 can be suspended on each hanging rod 51.

[0051] In addition, the hanging assembly 5 includes multiple hanging rods 51 and multiple rod sleeves 52, with the multiple rod sleeves 52 and multiple hanging rods 51 arranged in a one-to-one correspondence, and the multiple hanging rods 51 are distributed in a rectangular array on the rear cover 15.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A tobacco leaf storage device, characterized in that, include: Storage box (1), the storage box (1) includes a shell (11) extending along a first direction and two partitions (12), the two partitions (12) are both located inside the shell (11) and are spaced apart along a second direction, the storage box (1) is provided with a first air inlet (10) and a second air inlet (20), a ventilation duct (30) is provided on the side of the two partitions (12) that are far apart from each other, the first air inlet (10) and the second air inlet (20) are both connected to the ventilation duct (30), and a fan (13) is provided at the second air inlet (20), a placement cavity (40) is provided on the side of the two partitions (12) that are close to each other, the placement cavity (40) is used to store tobacco leaves (100), a ventilation hole (121) is provided on the two partitions (12), and the ventilation duct (30) and the placement cavity (40) are connected through the ventilation hole (121); Humidity sensor (2) is installed on the storage box (1), and the detection end of the humidity sensor (2) is placed in the placement cavity (40). The humidity sensor (2) is connected to the fan (13) by an electrical signal.

2. The tobacco leaf storage device according to claim 1, characterized in that, The storage box (1) also includes a door panel (14) and a back cover (15). The door panel (14) and the back cover (15) are spaced apart along the first direction and are respectively connected to the housing (11). The two partitions (12), the door panel (14) and the back cover (15) surround and form the placement cavity (40).

3. The tobacco leaf storage device according to claim 2, characterized in that, The housing (11) has a first opening (111) and a second opening (112) at both ends along the first direction. The door panel (14) is connected to one end of the housing (11) and covers part of the first opening (111). The rear cover (15) is connected to the other end of the housing (11) and covers part of the second opening (112). The first air inlet (10) is provided at both the first opening (111) and the second opening (112).

4. The tobacco leaf storage device according to claim 1, characterized in that, The storage box (1) also includes a duct (16) extending along the second direction. The duct (16) is connected to the side wall of the housing (11). The second air inlet (20) is located at the end of the duct (16) away from the housing (11). A third opening (113) is provided on the side wall of the housing (11). The inner cavity of the duct (16) communicates with the third opening (113). The fan (13) is located inside the duct (16).

5. The tobacco leaf storage device according to claim 4, characterized in that, The third opening (113) is directly opposite the ventilation hole (121) in the second direction.

6. The tobacco leaf storage device according to any one of claims 1-5, characterized in that, The tobacco storage device also includes a protective net (3), which is installed on the partition (12) and covers the ventilation hole (121).

7. The tobacco leaf storage device according to any one of claims 1-5, characterized in that, The tobacco storage device also includes a sealing assembly (4), which includes a sealing cover (41) and a sealing ring (42) connected to each other. The sealing cover (41) is detachably mounted on the partition (12), and the sealing ring (42) is mounted on the side of the sealing cover (41) near the partition (12) to block the ventilation hole (121).

8. The tobacco leaf storage device according to claim 7, characterized in that, The sealing cover (41) is provided with a magnetic suction element (43) on the side near the partition (12), and the magnetic suction element (43) can be attracted to the partition (12).

9. The tobacco leaf storage device according to any one of claims 1-5, characterized in that, The tobacco storage device further includes a hanging assembly (5), which is disposed inside the storage box (1) for hanging the tobacco leaves (100). The hanging assembly (5) includes a hanging rod (51) and a rod sleeve (52) extending along the first direction. The rod sleeve (52) is slidably fitted onto the outside of the hanging rod (51).

10. The tobacco leaf storage device according to claim 9, characterized in that, The sleeve (52) is provided with at least two slots (521), and the at least two slots (521) are spaced apart along the first direction, and each slot (521) is arranged along the circumference of the sleeve (52).

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