Intelligent granary for reducing insect pests

Abstract

The intelligent granary comprises a silo, a grain inlet is formed in the top of the silo, a primary deinsectization assembly used for removing worm eggs and adults in the feeding process is arranged at the position, located below the grain inlet, in the silo, a ventilation tunnel is arranged at the bottom of the silo, and a secondary deinsectization assembly used for removing worm eggs and adults in the feeding process is arranged at the bottom of the ventilation tunnel. The top of the ventilation tunnel is fixedly connected with a ventilation floor, a lower ventilation pipeline communicated with the ventilation tunnel is arranged at the bottom end of the periphery of the outer side wall of the silo, and a lower fumigation pipeline which is staggered with the lower ventilation pipeline and communicated with the ventilation tunnel is arranged at the bottom end of the periphery of the outer side wall of the silo; through cooperation of the silo, the grain inlet and the primary deinsectization assembly, when grains enter the silo through the grain inlet, the primary deinsectization assembly can screen out adults and eggs in the grains, the number of the adults and the eggs entering the silo is reduced as much as possible, the follow-up fumigation difficulty and dosage are effectively reduced, and the grain deinsectization effect is improved. And drug residues in the grains caused by fumigation are reduced as much as possible.

Description

Technical Field

[0001] This utility model relates to the field of grain storage technology, specifically to an intelligent grain warehouse for reducing pests. Background Technology

[0002] In the grain storage sector, stored-grain pests can directly cause grain loss. Pests such as corn weevils and wheat moths breed in grain, leading to a decline in grain quality and even rendering it completely inedible. These pests not only feed on the grain but also cause localized heating, condensation, and mold growth in grain piles, further exacerbating grain losses.

[0003] When grain is stored, insect eggs and adult insects carried by the grain are often directly brought into the storage room. The pests and insect eggs may continue to grow and reproduce in the storage room, which will lead to the need for frequent use of chemical fumigation, which is not only costly, but also poses a risk of excessive chemical residues. Utility Model Content

[0004] To address the shortcomings of existing technologies, such as the inability to adjust the position of air vents during fumigation and ventilation, and the need for fumigation and ventilation of the entire grain silo even when the grain is low, resulting in low fumigation efficiency and potential for excessive chemical residues in the grain, this invention provides an intelligent grain silo for reducing pests.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses an intelligent grain silo for reducing pests, including a silo with a grain inlet at the top and a preliminary pest control component for removing insect eggs and adult insects during the feeding process located below the grain inlet inside the silo.

[0007] The bottom of the silo is provided with a ventilation tunnel, and the top of the ventilation tunnel is fixedly connected to a ventilation floor. The bottom of the outer walls of the silo is provided with a lower ventilation duct that is connected to the ventilation tunnel. The bottom of the outer walls of the silo is provided with a lower fumigation duct that is distributed in a staggered manner with the lower ventilation duct and is connected to the ventilation tunnel. A lower ventilation fan is provided in the lower ventilation duct. A lower fumigation fan is provided in the lower fumigation duct. The inner walls of the silo are provided with a dynamic ventilation and fumigation assembly that works in conjunction with the ventilation tunnel.

[0008] As a preferred technical solution of this utility model, the preliminary insect removal component includes a support component fixedly connected to the top wall of the silo around the grain inlet, an insect removal box fixedly connected to the bottom of the support component, an inclined insect removal sieve fixedly connected to one side of the inner wall of the insect removal box, a grain outlet opened on one side of the outer wall of the insect removal box, and an insect removal vibration motor fixedly connected to the bottom of the insect removal box.

[0009] As a preferred technical solution of this utility model, an insect-removing air duct is provided at the top of one side of the outer wall of the silo, an insect-removing fan is provided inside the insect-removing air duct, and a first connecting hose connected to the insect-removing box is provided at the bottom of one side of the outer wall of the insect-removing box, with the end of the first connecting hose away from the insect-removing box connected to the insect-removing air duct.

[0010] As a preferred embodiment of this utility model, the support assembly includes a support limiting cylinder fixedly connected to the inner top wall of the silo around the grain inlet, a support limiting rod slidably connected inside the support limiting cylinder, a spring fixedly connected to the inner top wall of the support limiting cylinder, and the bottom end of the spring fixedly connected to the support limiting rod.

[0011] As a preferred technical solution of this utility model, the dynamic ventilation fumigation component includes an upper ventilation duct that is vertically and evenly arranged around the outer wall of the silo and an upper fumigation duct that is vertically and evenly arranged around the outer wall of the silo and interspersed with the upper ventilation duct. An upper ventilation fan is installed inside the upper ventilation duct, and an upper fumigation fan is installed inside the upper fumigation duct. A fumigation drug pipe is installed outside the silo, and both the upper fumigation duct and the lower fumigation duct are connected to the fumigation drug pipe.

[0012] As a preferred embodiment of this utility model, an outer support rod in a ring is fixedly connected to the upper surface of the ventilation floor near the inner wall of the silo, and an inner support rod in a ring is fixedly connected to the upper surface of the ventilation floor away from the silo. Multiple outer sleeves are slidably connected to the outer support rods, and a duct is fixedly connected to one side of the outer wall of the outer sleeve. An inner sleeve slidably connected to the inner support rod is fixedly connected to the end of the duct away from the outer sleeve. Air vents are evenly distributed on the lower surface of the duct, and a filter screen is installed in each air vent. A second connecting hose connected to the duct is provided on both sides of the outer wall of the duct. The upper ventilation duct and the upper fumigation duct are both connected to the duct through the second connecting hose.

[0013] As a preferred embodiment of this utility model, a rack is fixedly connected to one side of the outer wall of both the outer and inner support rods, and a shaft is rotatably connected to one side of the inner wall of both the outer and inner sliding sleeves. An internal gear is fixedly connected to the end of the outer wall of the shaft near the rack, and an external gear is fixedly connected to the end of the outer wall of the shaft away from the internal gear. A transmission chain for driving the two external gears to rotate synchronously is sleeved on two adjacent external gears, and a drive motor for driving the shaft to rotate is fixedly connected to one side of the outer wall of the outer sliding sleeve.

[0014] The beneficial effects of this utility model are:

[0015] 1. This type of intelligent grain silo for reducing pests works by combining a silo, a grain inlet, and a preliminary pest control component. When grain enters the silo through the grain inlet, the preliminary pest control component can screen out adult insects and eggs in the grain, minimizing the number of adult insects and eggs entering the silo. This effectively reduces the difficulty and amount of pesticides required for subsequent fumigation, thereby minimizing pesticide residues inside the grain caused by fumigation.

[0016] 2. This intelligent grain silo, designed to reduce pests, utilizes a combination of ventilation tunnels, a ventilation floor, lower ventilation ducts, lower fumigation ducts, lower ventilation fans, lower fumigation fans, dynamic ventilation and fumigation components, racks, shafts, internal gears, external gears, transmission chains, and a drive motor. Before grain is introduced into the silo, the drive motor is activated, causing the shaft, internal gears, and external gears to rotate. The two internal gears and two external gears rotate synchronously via the transmission chain. Because the internal gears mesh with the rack, the outer and inner sliding sleeves move synchronously along the outer and inner support rods, respectively, adjusting the height of the ventilation ducts. This ensures the ducts are vertically and evenly distributed according to the preset height of the grain, with the uppermost duct aligned with the preset grain height. This ensures that ventilation and fumigation gases effectively act on the grain pile after the grain enters the silo, reducing ineffective ventilation and fumigation, and improving the efficiency and effectiveness of ventilation and fumigation. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a three-dimensional structural diagram of an intelligent grain warehouse for reducing pests according to this utility model.

[0019] Figure 2 This is a schematic diagram of the main sectional view of an intelligent grain warehouse for reducing pests according to this utility model.

[0020] Figure 3 This is a side sectional view of the structure of an intelligent grain warehouse for reducing pests according to this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of an insect-removing box for reducing pests in an intelligent grain warehouse according to this utility model.

[0022] Figure 5 This utility model relates to an intelligent grain warehouse for reducing pests. Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of the air duct of an intelligent grain warehouse for reducing pests, according to this utility model.

[0024] Figure 7 This is a three-dimensional cross-sectional view of the air duct structure of an intelligent grain warehouse for reducing pests, according to this utility model.

[0025] In the diagram: 1. Silo; 2. Grain inlet; 3. Preliminary pest control assembly; 31. Support assembly; 311. Support limiting cylinder; 312. Support limiting rod; 313. Spring; 32. Pest control box; 33. Inclined pest control sieve; 34. Grain outlet; 35. Pest control vibration motor; 36. Pest control air duct; 37. Pest control fan; 38. First connecting hose; 4. Ventilation tunnel; 5. Ventilation floor; 6. Lower ventilation duct; 7. Lower fumigation duct; 8. Lower ventilation fan; 9. Lower fumigation fan; 10. Dynamic 101. Upper ventilation duct; 102. Upper fumigation duct; 103. Upper ventilation fan; 104. Upper fumigation fan; 105. Fumigation drug tube; 106. Outer support rod; 107. Inner support rod; 108. Outer sliding sleeve; 109. Air duct; 1010. Inner sliding sleeve; 1011. Air outlet; 1012. Filter screen; 1013. Second connecting hose; 11. Rack; 12. Rotating shaft; 13. Internal gear; 14. External gear; 15. Transmission chain; 16. Drive motor. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0027] Example: Refer to Figure 1 , Figure 2 and Figure 3 This utility model discloses an intelligent grain silo for reducing pests, including a silo 1. The top of the silo 1 is provided with a grain inlet 2. In use, the grain first enters the silo 1 through the grain inlet 2. Inside the silo 1, below the grain inlet 2, is a preliminary pest control component 3 for removing insect eggs and adult insects during the feeding process.

[0028] Reference Figure 2 , Figure 3 and Figure 4 The preliminary pest control component 3 includes a support component 31 fixedly connected to the inner top wall of the silo 1 around the grain inlet 2. The support component 31 includes a support limiting cylinder 311 fixedly connected to the inner top wall of the silo 1 around the grain inlet 2. A support limiting rod 312 is slidably connected inside the support limiting cylinder 311. A spring 313 is fixedly connected to the inner top wall of the support limiting cylinder 311. The bottom end of the spring 313 is fixedly connected to the support limiting rod 312. A pest control box 32 is fixedly connected to the bottom of the support component 31. An inclined pest control sieve 33 is fixedly connected to one side of the inner side wall of the pest control box 32. A grain outlet 34 is opened on one side of the outer side wall of the pest control box 32. A pest control vibration motor 35 is fixedly connected to the bottom of the pest control box 32.

[0029] When the grain enters the silo 1, the insect-removing vibration motor 35 is started. The grain falling through the grain inlet 2 first falls onto the surface of the inclined insect-removing screen 33. The insect-removing vibration motor 35 drives the insect-removing box 32 and the inclined insect-removing screen 33 to vibrate. Due to gravity, the grain slides down the surface of the inclined insect-removing screen 33 and falls to the bottom of the silo 1 through the grain outlet 34. At the same time, insect eggs and adult insects fall from the sieve holes of the inclined insect-removing screen 33 into the insect-removing box 32 due to their size difference.

[0030] While the insect-removing vibration motor 35 drives the insect-removing box 32 to vibrate, thereby causing the insect-removing box 32 to move up and down, the support limit rod 312 moves within the support limit cylinder 311, and the spring 313 provides a certain buffer, thereby minimizing the structural damage caused by the vibration of the insect-removing box 32 driven by the insect-removing vibration motor 35.

[0031] An insect-removing duct 36 is installed at the top of one side of the outer wall of the silo 1. An insect-removing fan 37 is installed inside the insect-removing duct 36. A first connecting hose 38 connected to the insect-removing box 32 is installed at the bottom of one side of the outer wall of the insect-removing box 32. The end of the first connecting hose 38 away from the insect-removing box 32 is connected to the insect-removing duct 36. At the same time, the insect-removing fan 37 is started and sucks the pests and insect eggs at the bottom of the insect-removing box 32 into the insect-removing duct 36 through the first connecting hose 38 and then discharges them.

[0032] Reference Figure 1 , Figure 2 and Figure 3 The bottom of the silo 1 is provided with a ventilation tunnel 4, and the top of the ventilation tunnel 4 is fixedly connected with a ventilation floor 5. The bottom of the outer walls of the silo 1 is provided with a lower ventilation duct 6 that is connected to the ventilation tunnel 4. The bottom of the outer walls of the silo 1 is provided with a lower fumigation duct 7 that is distributed in a staggered manner with the lower ventilation duct 6 and connected to the ventilation tunnel 4. A lower ventilation fan 8 is installed in the lower ventilation duct 6, and a lower fumigation fan 9 is installed in the lower fumigation duct 7. The inner walls of the silo 1 are provided with a dynamic ventilation fumigation component 10 that works in conjunction with the ventilation tunnel 4.

[0033] Reference Figure 2 , Figure 3 and Figure 5The dynamic ventilation fumigation assembly 10 includes an upper ventilation duct 101 vertically and evenly arranged around the outer wall of the silo 1 and an upper fumigation duct 102 vertically and evenly arranged around the outer wall of the silo 1 and interspersed with the upper ventilation duct 101. An upper ventilation fan 103 is installed inside the upper ventilation duct 101, and an upper fumigation fan 104 is installed inside the upper fumigation duct 102. A fumigation drug pipe 105 is installed outside the silo 1, and both the upper fumigation duct 102 and the lower fumigation duct 7 are connected to the fumigation drug pipe 105. An outer support rod 106 in a ring is fixedly connected to the side of the upper surface of the ventilation floor 5 near the inner wall of the silo 1, and an inner support rod 107 in a ring is fixedly connected to the side of the upper surface of the ventilation floor 5 away from the silo 1. Multiple outer sliding sleeves 108 are slidably connected to the outer support rods 106, and a duct 109 is fixedly connected to one side of the outer wall of the outer sliding sleeve 108.

[0034] An inner sleeve 1010, which is slidably connected to the inner support rod 107, is fixedly connected to one end of the duct 109 away from the outer sleeve 108. Air vents 1011 are evenly distributed on the lower surface of the duct 109. A filter screen 1012 is installed inside the air vent 1011. A second connecting hose 1013 connected to the duct 109 is provided on both sides of the outer wall of the duct 109. The upper ventilation duct 101 and the upper fumigation duct 102 are both connected to the duct 109 through the second connecting hose 1013.

[0035] When ventilation is required inside the grain, the upper ventilation fan 103 in the upper ventilation duct 101 is started. External air enters the air duct 109 through the upper ventilation duct 101 and the second connecting hose 1013, and then enters the silo 1 through the air outlet 1011. At the same time, the lower ventilation fan 8 in the lower ventilation duct 6 is started, so that the air in the silo 1 is discharged from the grain warehouse through the ventilation tunnel 4 and the lower ventilation duct 6.

[0036] When fumigation of the grain is required, the fumigant is atomized and introduced into the fumigant tube 105. At the same time, the upper fumigation fan 104 in the upper fumigation pipe 102 is started. External air enters the air duct 109 through the upper fumigation pipe 102 and the second connecting hose 1013, and then enters the silo 1 through the air outlet 1011. At the same time, the lower fumigation fan 9 in the lower fumigation pipe 7 is started, so that the air in the silo 1 is discharged from the grain warehouse through the ventilation tunnel 4 and the lower fumigation pipe 7 and enters the fumigant tube 105. Then, it enters the silo 1 through the upper fumigation pipe 102, the upper fumigation fan 104, the second connecting hose 1013, the air duct 109 and the air outlet 1011.

[0037] Reference Figure 5 , Figure 6 and Figure 7A rack 11 is fixedly connected to one side of the outer wall of both the outer support rod 106 and the inner support rod 107. A shaft 12 is rotatably connected to one side of the inner wall of both the outer sliding sleeve 108 and the inner sliding sleeve 1010. An internal gear 13 is fixedly connected to one end of the outer wall of the shaft 12 near the rack 11, and an external gear 14 is fixedly connected to one end of the outer wall of the shaft 12 away from the internal gear 13. A transmission chain 15 for driving the two external gears 14 to rotate synchronously is sleeved on two adjacent external gears 14. A drive motor 16 for driving the shaft 12 to rotate is fixedly connected to one side of the outer wall of the outer sliding sleeve 108. The insect-removing vibration motor 35, the insect-removing fan 37, the lower ventilation fan 8, the lower fumigation fan, the upper ventilation fan 103, the upper fumigation fan 104, and the drive motor 16 are all electrically connected to the control panel (not shown in the figure).

[0038] When the height of the air duct 109 needs to be adjusted, the drive motor 16 drives the rotating shaft 12 to rotate, which in turn drives the internal gear 13 and the external gear 14 to rotate simultaneously. At the same time, the two internal gears 13 and the two external gears 14 rotate synchronously through the transmission chain 15. Through the meshing of the two internal gears 13 and the two racks 11, the outer sliding sleeve 108 and the inner sliding sleeve 1010 move synchronously along the outer support rod 106 and the inner support rod 107, thereby adjusting the height of the air duct 109. This makes the uppermost air duct 109 level with the preset height of the grain. After the grain is introduced into the silo 1, the remaining air ducts 109 are vertically and evenly distributed inside the grain, thus effectively adjusting the ventilation and fumigation effect according to the height of the grain, thereby reducing ineffective ventilation and fumigation.

[0039] The working principle of this utility model is as follows:

[0040] During operation, grain enters the silo 1 through the grain inlet 2 and falls directly to the preliminary pest control component 3 located below the grain inlet 2. The pest control vibration motor 35 is activated, which drives the pest control box 32 and the inclined pest control screen 33 to vibrate. Due to gravity, the grain slides down the surface of the inclined pest control screen 33 and falls from the grain outlet 34 to the bottom of the silo 1. Because the insect eggs and adult insects are smaller than the screen holes, they fall from the screen holes of the inclined pest control screen 33 into the inside of the pest control box 32. The pest control fan 37 in the pest control air duct 36 at the top of the outer wall of the silo 1 is activated, which sucks the pests and insect eggs at the bottom of the pest control box 32 into the pest control air duct 36 through the first connecting hose 38 and finally discharges them from the silo 1.

[0041] During the process of the insect-removing vibration motor 35 driving the insect-removing box 32 to vibrate and cause it to move up and down, the support limit rod 312 moves accordingly within the support limit cylinder 311. At the same time, the spring 313 plays a buffering role, absorbing vibration energy and reducing the damage to the silo 1 structure caused by the vibration of the insect-removing box 32 driven by the insect-removing vibration motor 35.

[0042] When ventilation of the grain is required, the upper ventilation fan 103 in the upper ventilation duct 101 is started. External air enters the air duct 109 through the upper ventilation duct 101 and the second connecting hose 1013, and then enters the silo 1 through the air outlet 1011. At the same time, the lower ventilation fan 8 in the lower ventilation duct 6 is started, so that the air in the silo 1 is discharged from the grain warehouse through the ventilation tunnel 4 and the lower ventilation duct 6, forming an air circulation.

[0043] After the fumigation agent is atomized, it is introduced into the fumigation agent tube 105. The upper fumigation fan 104 in the upper fumigation pipe 102 is started. The outside air (carrying the fumigation agent) enters the air duct 109 through the upper fumigation pipe 102 and the second connecting hose 1013, and then enters the silo 1 through the air outlet 1011. At the same time, the lower fumigation fan 9 in the lower fumigation pipe 7 is started, so that the air (containing the fumigation agent) in the silo 1 is discharged from the grain warehouse through the ventilation tunnel 4 and the lower fumigation pipe 7 and enters the fumigation agent tube 105. Then, it enters the silo 1 again through the upper fumigation pipe 102, the upper fumigation fan 104, the second connecting hose 1013, the air duct 109 and the air outlet 1011, forming a circulation of fumigation agent.

[0044] Before the grain is introduced into the silo 1, the drive motor 16 is started to drive the rotating shaft 12 to rotate. The rotating shaft 12 simultaneously drives the internal gear 13 and the external gear 14 to rotate. The two internal gears 13 and the two external gears 14 rotate synchronously through the transmission chain 15. Since the internal gear 13 meshes with the rack 11, it drives the outer sliding sleeve 108 and the inner sliding sleeve 1010 to move synchronously along the outer support rod 106 and the inner support rod 107, respectively, to adjust the height of the air duct 109. This allows the air duct 109 to be vertically and evenly distributed according to the height of the grain. The uppermost air duct 109 is level with the preset height of the grain. This ensures that the ventilation and fumigation gases can effectively act on the grain pile after the grain enters the silo 1, reducing ineffective ventilation and fumigation, and improving the efficiency and effect of ventilation and fumigation.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A smart grain silo for reducing pests, comprising a silo (1), characterized in that, The top of the silo (1) is provided with a grain inlet (2), and a preliminary insect removal component (3) for removing insect eggs and adult insects during the feeding process is provided inside the silo (1) below the grain inlet (2). The bottom of the silo (1) is provided with a ventilation tunnel (4), and the top of the ventilation tunnel (4) is fixedly connected with a ventilation floor (5). The bottom of the outer wall of the silo (1) is provided with a lower ventilation pipe (6) that is connected to the ventilation tunnel (4). The bottom of the outer wall of the silo (1) is provided with a lower fumigation pipe (7) that is staggered with the lower ventilation pipe (6) and connected to the ventilation tunnel (4). A lower ventilation fan (8) is provided in the lower ventilation pipe (6). A lower fumigation fan (9) is provided in the lower fumigation pipe (7). The inner side wall of the silo (1) is provided with a dynamic ventilation fumigation assembly (10) that works in conjunction with the ventilation tunnel (4).

2. The intelligent grain warehouse for reducing pests according to claim 1, characterized in that, The preliminary pest control component (3) includes a support component (31) fixedly connected to the inner top wall of the silo (1) around the grain inlet (2). The bottom of the support component (31) is fixedly connected to a pest control box (32). An inclined pest control screen (33) is fixedly connected to one side of the inner wall of the pest control box (32). A grain outlet (34) is opened on one side of the outer wall of the pest control box (32). A pest control vibration motor (35) is fixedly connected to the bottom of the pest control box (32).

3. The intelligent grain warehouse for reducing pests according to claim 2, characterized in that, An insect-removing duct (36) is provided at the top of one side of the outer wall of the silo (1), and an insect-removing fan (37) is provided inside the insect-removing duct (36). A first connecting hose (38) connected to the insect-removing box (32) is provided at the bottom of one side of the outer wall of the insect-removing box (32). The end of the first connecting hose (38) away from the insect-removing box (32) is connected to the insect-removing duct (36).

4. A smart grain warehouse for reducing pests according to claim 3, characterized in that, The support assembly (31) includes a support limiting cylinder (311) fixedly connected to the inner top wall of the silo (1) around the grain inlet (2). A support limiting rod (312) is slidably connected inside the support limiting cylinder (311). A spring (313) is fixedly connected to the inner top wall of the support limiting cylinder (311), and the bottom end of the spring (313) is fixedly connected to the support limiting rod (312).

5. A smart grain silo for reducing pests according to claim 4, characterized in that, The dynamic ventilation fumigation assembly (10) includes an upper ventilation duct (101) vertically and evenly arranged around the outer wall of the silo (1) and an upper fumigation duct (102) vertically and evenly arranged around the outer wall of the silo (1) and interspersed with the upper ventilation duct (101). An upper ventilation fan (103) is installed inside the upper ventilation duct (101), and an upper fumigation fan (104) is installed inside the upper fumigation duct (102). A fumigation drug pipe (105) is installed outside the silo (1), and both the upper fumigation duct (102) and the lower fumigation duct (7) are connected to the fumigation drug pipe (105).

6. A smart grain warehouse for reducing pests according to claim 5, characterized in that, The upper surface of the ventilation floor (5) is fixedly connected with an outer support rod (106) arranged in a ring on the side near the inner wall of the silo (1). The upper surface of the ventilation floor (5) away from the silo (1) is fixedly connected with an inner support rod (107) arranged in a ring. Multiple outer sleeves (108) are slidably connected to the outer support rods (106). A duct (109) is fixedly connected to one side of the outer wall of the outer sleeve (108). The end of the duct (109) away from the outer sleeve (108) is fixed. An inner sliding sleeve (1010) is connected to the inner support rod (107). Air vents (1011) are evenly provided on the lower surface of the air duct (109). A filter screen (1012) is provided inside the air vent (1011). A second connecting hose (1013) is provided on both sides of the outer wall of the air duct (109) and is connected to the air duct (109). The upper ventilation duct (101) and the upper fumigation duct (102) are both connected to the air duct (109) through the second connecting hose (1013).

7. A smart grain silo for reducing pests according to claim 6, characterized in that, A rack (11) is fixedly connected to one side of the outer wall of the outer support rod (106) and the inner support rod (107). A shaft (12) is rotatably connected to one side of the inner wall of the outer sleeve (108) and the inner sleeve (1010). An internal gear (13) is fixedly connected to one end of the outer wall of the shaft (12) near the rack (11). An external gear (14) is fixedly connected to one end of the outer wall of the shaft (12) away from the internal gear (13). A transmission chain (15) for driving the two external gears (14) to rotate synchronously is sleeved on the two adjacent external gears (14). A drive motor (16) for driving the shaft (12) to rotate is fixedly connected to one side of the outer wall of the outer sleeve (108).

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