A double cold source intelligent switching system for sweet potato storage

Abstract

This invention discloses a dual-cold-source intelligent switching system for sweet potato storage, relating to the field of storage technology. It includes an intermediate chamber with storage compartments on both sides. A spraying assembly is installed on the lower side of each storage compartment, with a mounting plate on the spraying assembly. Sweet potatoes are placed on the upper side of the mounting plate. An air intake wheel is installed between the intermediate chamber and the storage compartments. An air intake assembly is installed on each storage compartment. A front fan and a rear fan are installed on both sides of the intermediate chamber. A refrigerator is installed on one side of both the intermediate chamber and the storage compartments. This technical solution utilizes both natural temperature for cooling and a refrigerator for cooling, resulting in significant energy savings. The spraying assembly in the storage compartment automatically sprays pesticides, ensuring a safe storage environment and greatly improving the quality of sweet potato storage.

Description

Technical Field

[0001] This invention relates to the field of storage technology, and in particular to a dual-cold-source intelligent switching system for sweet potato storage. Background Technology

[0002] Sweet potatoes are susceptible to chilling injury, disease, and sprouting after harvest, making storage challenging. Currently, common storage methods include traditional cellar storage, ventilated storage, and mechanical cold storage. Existing storage facilities typically have insulated structures, ventilation systems, and temperature and humidity monitoring devices. By regulating the temperature and humidity within the storage, they inhibit sweet potato respiration and disease development. Some facilities also combine fumigation or manual spraying of pesticides for disease control. However, existing technologies still have significant limitations: First, there is a lack of efficient and uniform automatic spraying systems, relying heavily on manual labor or periodic fumigation. This not only results in uneven pesticide distribution and low efficiency but also poses safety and residue risks. Second, most storage facilities cannot intelligently switch between natural ventilation and active cooling modes based on external climate conditions. This leads to insufficient utilization of natural cooling sources for energy conservation during suitable low-temperature seasons, while relying entirely on mechanical refrigeration during high-temperature seasons, resulting in high energy consumption and inflexible temperature and humidity control, affecting storage quality and cost-effectiveness. Therefore, there is an urgent need to develop a sweet potato storage facility with intelligent spraying and dual-mode temperature control to achieve green, low-consumption, and efficient long-term storage. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention discloses a dual-cold-source intelligent switching system for sweet potato storage. The system includes an intermediate chamber with storage compartments on either side. Each storage compartment is equipped with a spraying assembly, which has a mounting plate on top. Sweet potatoes are placed on the upper side of the mounting plate. An air intake wheel is positioned between the intermediate chamber and the storage compartments. Air intake assemblies are installed in each storage compartment. Front and rear fans are installed on either side of the intermediate chamber. A refrigerator is installed on one side of both the intermediate chamber and the storage compartments. This technical solution utilizes both natural temperature for cooling and a refrigerator for cooling, resulting in significant energy savings. The spraying assembly in the storage compartment automatically sprays pesticides, ensuring a suitable storage environment and greatly improving the quality of stored sweet potatoes.

[0004] Furthermore, a ventilation duct is installed on one side of the intermediate room and storage room, the cooler is installed inside the ventilation duct, the air intake assembly is installed between the storage room and the ventilation duct, and the ventilation duct is connected to the outside.

[0005] Furthermore, a top cover is fixedly installed on the upper side of the storage chamber, a baffle is fixedly installed on the lower side of the top cover, a baffle plate is installed on the lower side of the baffle, the area of ​​the baffle plate is smaller than that of the top cover, and the air inlet assembly blows air towards the baffle.

[0006] Furthermore, a baffle plate is fixedly installed between the intermediate room and the storage room, with a through hole between the two baffle plates connecting them. Two air intake wheels are mounted on the baffle plates, meshing and rotating to allow ventilation between the intermediate room and the storage room. Through this technical solution, the activation of the front and rear fans creates a cross-ventilation within the storage room, simultaneously forming a negative pressure zone. This allows hot air from the storage room to flow into the intermediate room. Outdoor air then enters the storage room through the air intake assembly, while cool air is directly blown onto the baffles. The baffles disperse the airflow, preventing direct exposure and avoiding excessively low local temperatures, thus preventing large temperature differences within the storage room.

[0007] Furthermore, the air intake assembly includes a ventilation sleeve, which is installed between the storage chamber and the ventilation duct. Inside the ventilation sleeve, air guide rod one, air guide rod two, and air guide rod three are rotatably mounted. The air intake volume is adjusted by controlling air guide rod one, air guide rod two, and air guide rod three through a drive motor.

[0008] Furthermore, a pulley 1 is fixedly mounted on the lower side of the air guide rod, a pulley 2 is fixedly mounted on the lower side of the air guide rod 2, and a pulley 3 is fixedly mounted on the lower side of the air guide rod 3. The diameter of pulley 3 is smaller than the diameter of pulley 2, and the diameter of pulley 2 is smaller than the diameter of pulley 1. A belt 2 is installed between pulley 3 and pulley 2, and a belt 1 is installed between pulley 1 and pulley 2. Through the above technical solution, the air intake assembly controls air guide rods 1, 2, and 3, automatically closing or controlling the air intake volume. Moreover, the different diameters of pulleys 1, 2, and 3 result in different swing angles for air guide rods 1, 2, and 3. The distance between adjacent rods is larger on the side closer to the ventilation duct and smaller on the side closer to the storage chamber, which can further compress the air and make the air cooler.

[0009] Furthermore, a slide rail is provided around the bottom surface of the storage chamber, and the spraying assembly moves around the bottom surface of the storage chamber. A first moving track and a second moving track are fixedly installed on the bottom surface of the storage chamber. Guide ports are installed at the ends of the first moving track and the second moving track. The spraying assembly slides onto the first moving track and the second moving track to spray the middle position.

[0010] Furthermore, the spraying assembly includes two moving carts. The lower side of the moving cart is equipped with a first roller, and the upper side of the moving cart is hinged with a connecting rod. The two connecting rods are hinged to each other, and a moving block is also hinged at the hinge. The lower side of the moving block is equipped with a second roller, and the moving block is equipped with a middle spray bottle. The two moving carts move closer to each other to send the moving block into the first moving track and the second moving track.

[0011] Furthermore, a small shaft is fixedly mounted on the connecting rod, a sleeve rod is sleeved between the two small shafts, a crossbar is fixedly mounted between the sleeve rods, a guide rod is fixedly mounted on the crossbar, and the intermediate spray bottle slides inside the guide rod.

[0012] Furthermore, a rotating shaft is fixedly mounted on the crossbar, and a fixed shaft is fixedly mounted at the top of the rotating shaft. A gear is rotatably mounted on the rotating shaft, and a spraying rod is fixedly mounted on the gear. A connecting shaft is slidably mounted on the fixed shaft, and a small spring is fixedly mounted between the connecting shaft and the fixed shaft. The spraying rod has four insertion holes, and the connecting shaft is inserted into the insertion holes. Through the above technical solution, the storage environment inside the storage room is greatly improved by using two mobile carts to move and spray the pesticide. The connection of the connecting rod allows the storage room to not only move around the outside of the storage room, but also to deliver the middle sprayer and spraying rod to the middle part of the storage room for disinfection. At the same time, the meshing of the gear and rack allows the spraying rod to change direction when moving, further expanding the spraying area.

[0013] The advantages of this invention compared to the prior art are: (1) Through the technical solution of this invention, the system realizes intelligent dual-mode coordination and seamless switching between natural cold source and mechanical refrigeration, and constructs a high-efficiency and low-carbon temperature control system. When the outside temperature is suitable, the system can automatically switch to natural ventilation refrigeration mode, making full use of low-temperature fresh air as a natural cold source, which is introduced into the storage through intelligent air ducts. It can achieve cooling and dehumidification with almost no power consumption, significantly reducing the energy load in the early stage of storage. When the outside temperature does not meet the requirements or the heat load in the storage increases, the system can automatically or manually switch to active refrigeration mode and start the refrigerator for precise temperature control. This intelligent decision-making and switching mechanism based on environmental conditions and storage needs breaks through the limitations of the traditional storage mode being single and energy-intensive, making the temperature management throughout the storage period both flexible and economical, and significantly reducing the overall energy consumption. It solves the problems of high labor intensity, uneven coverage, easy omissions, risk of personal contact with pesticides, and potential pollution caused by manual spraying. This automated spraying system effectively inhibits the growth of pathogens and prevents the spread of diseases. By precisely controlling the concentration and frequency of pesticides, it reduces the total amount of pesticides used and the risk of residues, providing a clean and safe microenvironment for the long-term storage of sweet potatoes. Thus, on the basis of energy conservation and consumption reduction, it further ensures and improves the overall storage quality and marketability of sweet potatoes from the perspective of pest and disease control.

[0014] (2) Through the technical solution of the present invention, in natural ventilation mode, the front fan and the rear fan start in tandem to create a highly efficient and stable through-flow in the intermediate room. When this airflow flows through the intermediate room, the increased flow velocity creates a significant negative pressure zone in the area connecting the storage room and the intermediate room. Under the suction effect of this negative pressure, the warmer air accumulated above the potato pile in the storage room is orderly introduced into the intermediate room through the air inlet wheel set on the upper part of the partition wall and mixed with the through-flow. At the same time, the outdoor fresh air, after temperature and humidity regulation, is actively introduced into the storage room through the air inlet component driven by the pressure difference. This cold air flow is guided to the baffle set above the storage room, and through its unique porous diversion structure, the concentrated cold air jet is dispersed and transformed into a uniform and gentle diffused airflow that slowly descends. This process effectively prevents localized overcooling that may occur when cold air blows directly onto the surface of the sweet potato pile, ensuring that the cold energy is distributed gently and evenly within the storage space. This significantly reduces the vertical and horizontal temperature gradients caused by improper airflow organization, achieving precise control of the microenvironment temperature difference within the storage room and providing stable and uniform low-temperature storage conditions for sweet potatoes.

[0015] (3) Through the technical solution of the present invention, the air intake component controls the air guide rod 1, air guide rod 2 and air guide rod 3 to automatically close or control the air intake volume. Furthermore, the diameters of pulley 1, pulley 2 and pulley 3 are different, resulting in different swing angles of air guide rod 1, air guide rod 2 and air guide rod 3. The distance between adjacent rods on the side closer to the ventilation duct is large, and the distance between rods on the side closer to the storage chamber is small, which can further compress the air and make the air cooler.

[0016] (4) Through the technical solution of the present invention, two mobile vehicles are used to spray the medicine in the storage room, which greatly improves the storage environment in the storage room. The connection of the connecting rod allows the storage room to not only move around the outside of the storage room, but also to send the middle sprayer and spraying rod to the middle part of the storage room for disinfection. At the same time, the meshing of the gear and rack allows the spraying rod to change direction when moving, further expanding the spraying area. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 Local structural explosion of the present invention Figure 1 .

[0019] Figure 3 Local structural explosion of the present invention Figure 2 .

[0020] Figure 4 This is a schematic diagram of the barrier grid structure of the present invention.

[0021] Figure 5 This is a schematic diagram of the internal structure of the present invention.

[0022] Figure 6 for Figure 5 A magnified structural diagram of point A in the middle.

[0023] Figure 7 This is a partial internal schematic diagram of the present invention.

[0024] Figure 8 This is a schematic diagram of the spraying assembly of the present invention. Figure 1 .

[0025] Figure 9 for Figure 8 A magnified structural diagram at point B in the middle.

[0026] Figure 10 This is a schematic diagram of the spraying assembly of the present invention. Figure 2 .

[0027] Figure 11 for Figure 10 A magnified structural diagram at point C.

[0028] Figure 12 This is a schematic diagram of the internal structure of the air intake assembly of the present invention.

[0029] Reference numerals: 1-Spraying assembly; 2-Air intake assembly; 3-Intermediate chamber; 4-Storage room; 5-Door; 6-Front fan; 7-Rear fan; 8-Power distribution cabinet; 9-Shielding plate; 10-Air intake wheel; 11-Top cover; 12-Blocking grid; 13-Blocking plate; 14-Temperature sensor one; 15-Refrigerator; 16-Temperature sensor two; 17-Ventilation duct; 18-Mounting plate; 19-Support block; 101-Guide wheel; 102-Mobile cart; 103-Roller one; 104-Connecting rod; 105-Small shaft; 106-Mobile block; 107-Roller two; 108-Horizontal connecting rod; 109-Sleeve rod; 110- Nozzle; 111-Guide rod; 112-Intermediate spray bottle; 113-Spraying rod; 114-Rack; 115-Moving motor; 116-Guide shaft; 117-Moving track one; 118-Moving track two; 119-Guide port; 120-Gear; 121-Fixed shaft; 122-Plug-in shaft; 123-Small spring; 124-Insertion hole; 125-Rack; 201-Ventilation sleeve; 202-Drive motor; 203-Guide rod one; 204-Guide rod two; 205-Guide rod three; 206-Pulley one; 207-Pulley two; 208-Pulley three; 209-Belt one; 210-Belt two. Detailed Implementation

[0030] To gain a better understanding of the technical solution and beneficial effects of the present invention, the technical solution of the present invention and its beneficial effects are described in detail below with reference to the accompanying drawings.

[0031] A dual-cold-source intelligent switching system for sweet potato storage includes an intermediate room 3, with storage chambers 4 on both sides of the intermediate room 3. Each storage chamber 4 contains a spraying assembly 1. In other embodiments, the spraying assembly 1 is mounted on the ceiling and sprays pesticides downwards. In this embodiment, the spraying assembly 1 is mounted on the lower side of the storage chamber 4. An mounting plate 18 is mounted on the spraying assembly 1, and sweet potatoes are placed on the mounting plate 18. The mounting plate 18 is mesh-shaped, allowing the spraying assembly 1 to pass through the mounting plate 18 and spray the pesticides onto the sweet potatoes in the storage chamber 4. An air intake wheel 10 is provided between the intermediate room 3 and the storage chamber 4. An air intake assembly 2 is provided on the storage chamber 4. In other embodiments, a variable frequency fan can be used instead of the air intake assembly. If the budget is insufficient, the solution of this embodiment, i.e., the air intake assembly 2, can be used. A front fan 6 and a rear fan 7 are installed on both sides of the intermediate room 3, and a cooler 15 is installed on one side of the intermediate room 3 and the storage chamber 4. The intermediate room 3 is also equipped with a power distribution cabinet 8 and a temperature sensor 14. The intermediate room 3 also has a door 5, which allows staff to enter and control the system. Through the above technical solution, it is possible to use natural temperature for cooling as well as cooling through the refrigeration unit 15. This temperature control can save a lot of energy. The spraying component 1 is installed in the storage room 4 to automatically spray pesticides in the storage room 4, ensuring the storage environment and greatly improving the storage quality of sweet potatoes.

[0032] In this embodiment, a ventilation duct 17 is installed on one side of the intermediate room 3 and the storage room 4. The cooler 15 is installed in the ventilation duct 17, and the air intake assembly 2 is installed between the storage room 4 and the ventilation duct 17. The ventilation duct 17 is connected to the outside. When the front fan 6 and the rear fan 7 are started, a cross breeze is formed. The air enters the intermediate room 3 from the front fan 6 and then enters the ventilation duct 17 through the rear fan 7. At this time, the hot air in the storage room 4 enters the intermediate room 3. The air intake wheel 10 between the intermediate room 3 and the storage room 4 is set at the upper position. Because the hot air is usually on the upper side of the room, the hot air on the upper side enters the intermediate room 3 and mixes with the cross breeze. The cross breeze has a fast flow rate and forms a negative pressure. Therefore, the hot air in the storage room 4 will actively flow to the intermediate room 3, and then mix and enter the ventilation duct 17, and then enter the storage room 4 through the air intake assembly 2.

[0033] In this embodiment, a top cover 11 is fixedly installed on the upper side of the storage chamber 4, and a baffle 12 is fixedly installed on the lower side of the top cover 11. A baffle plate 13 is installed on the lower side of the baffle 12. The area of ​​the baffle plate 13 is smaller than that of the top cover 11, and the air intake assembly 2 blows air towards the baffle 12. The baffle 12 has a structure similar to a heat sink, which disperses the air entering the storage chamber 4. The air entering from the air intake assembly 2 will not blow directly, and because the area of ​​the baffle plate 13 is small, the air will be exhausted from all sides into the storage chamber 4.

[0034] In this embodiment, a baffle plate 9 is fixedly installed between the intermediate room 3 and the storage room 4. Specifically, a square through hole is provided in the partition wall between them, and two circular surfaces are provided on the upper and lower sides of the through hole. The center distance between the two circular surfaces is smaller than the diameter of the circular surfaces. An air intake wheel 10 is installed at the axis of the circular surface, connecting the intermediate room 3 and the storage room 4. Two air intake wheels 10 are installed on the baffle plate 9. The two air intake wheels 10 mesh and rotate to allow ventilation between the intermediate room 3 and the storage room 4. An arc-shaped surface is provided between the two circular surfaces to cover the side, leaving only the part where the two air intake wheels 10 interlock without obstruction. Through the above technical solution, the front fan 6 and the rear fan 7 are activated to create a cross airflow in the storage room 4 and at the same time create a negative pressure zone, allowing the hot air in the storage room 4 to flow into the intermediate room 3. Then, outdoor air enters the storage room 4 through the air intake assembly 2. The cold air blows directly onto the baffle 12, which disperses the airflow and prevents it from blowing directly onto the storage room 4, thus preventing the local temperature from getting too low and avoiding a large temperature difference in the storage room 4.

[0035] In this embodiment, the air intake assembly 2 includes a ventilation sleeve 201, which is installed between the storage chamber 4 and the ventilation duct 17. A first air guide rod 203, a second air guide rod 204, and a third air guide rod 205 are rotatably mounted inside the ventilation sleeve 201. The air intake volume is adjusted by controlling the first air guide rod 203, the second air guide rod 204, and the third air guide rod 205 via a drive motor 202. A first pulley 206 is fixedly mounted on the lower side of the first air guide rod 203, a second pulley 207 is fixedly mounted on the lower side of the second air guide rod 204, and a third pulley 208 is fixedly mounted on the lower side of the third air guide rod 205. The diameter of the third pulley 208 is smaller than the diameter of the second pulley 207, and the diameter of the second pulley 207 is smaller than the diameter of the first pulley 206. A second belt 210 is installed between the third pulley 208 and the second pulley 207, and a first belt 209 is installed between the first pulley 206 and the second pulley 207. The drive motor 202 shaft is connected to pulley 208, controlling the rotation of pulley 208. When air needs to be introduced into the storage chamber 4 from the ventilation duct 17, the guide rod 203 and the guide rod 204 form an angle. When the air enters the storage chamber 4 from the ventilation duct 17, the channel between guide rod 203 and guide rod 204 narrows, and the same applies to guide rod 204 and guide rod 205. This compresses the air, making the air blown into the storage chamber 4 cool. If sealing is required, the rotation continues, allowing roller 103, connecting rod 104, and small shaft 105 to fit together. At this time, roller 103 and small shaft 105 also fit against the side of the ventilation sleeve 201, thus achieving complete sealing.

[0036] In this embodiment, when the cooler 15 needs to cool, air enters the intermediate chamber 3 through the ventilation duct 17. The front fan 6 is turned off, and the rear fan 7 is turned on, creating high pressure in the intermediate chamber 3. This drives the front fan 6 and the air intake wheel 10, allowing cold air to enter the storage chamber 4. The air then passes through the baffle 12, and the hot air in the storage chamber 4 returns to the ventilation duct 17 through the air intake assembly 2 for remixing. At this time, the air intake assembly 2 is reversed, making the distance between roller 103, connecting rod 104, and small shaft 105 larger in the storage chamber 4 and smaller in the ventilation duct 17. The moving block 106, roller 207, and pulley 308 have different diameters, so the air guide rod 103 rotates at a small angle, the air guide rod 204 rotates at a large angle, and the air guide rod 305 rotates at an even larger angle. Thus, after the above changes are completed, air enters the ventilation duct 17 from the storage chamber 4, and the channel narrows, which also reduces the temperature of the air. Through the above technical solution, the air intake assembly 2 controls the air guide rods 1 203, 204, and 3 205 to automatically close or control the air intake volume. Furthermore, the different diameters of the pulleys 1 206, 207, and 3 208 result in different swing angles for the air guide rods 1 203, 204, and 3 205. The distance between adjacent rods is larger on the side closer to the ventilation duct 17 and smaller on the side closer to the storage chamber 4, which can further compress the air and make the air cooler.

[0037] In this embodiment, slides are provided around the bottom surface of the storage chamber 4. The spraying assembly 1 moves around the bottom surface of the storage chamber 4. The bottom surface of the storage chamber 4 is fixedly equipped with a first moving track 117 and a second moving track 118. The first moving track 117 and the second moving track 118 are perpendicular to each other and have a total of ten openings. The end openings of the first moving track 117 and the second moving track 118 are equipped with guide ports 119. The spraying assembly 1 slides onto the first moving track 117 and the second moving track 118 to spray the middle position. The spraying assembly 1 includes two mobile carts 102. Each mobile cart 102 has rollers 103 mounted on its underside and connecting rods 104 hinged to its upper side. Two guide wheels 101 are also mounted on the upper side of each mobile cart 102. The two connecting rods 104 are hinged together. Each mobile cart 102 has an independent drive and moves at the bottom of the storage chamber 4. A large chamfer is provided at the turning point at the bottom of the storage chamber 4. The structure of the two mobile carts 102 hinged to the connecting rods 104, combined with the guide wheels 101, allows them to pass through the turning points. A movable block 106 is also hinged at the hinge point. A second roller 107 is mounted on the underside of the movable block 106, forming a caster wheel structure. A movable motor 115 is mounted on the movable block 106, and two guide shafts 116 are located on either side of the motor 115. A central spray bottle 112 is mounted on the movable block 106. Two movable carts 102 move closer together, sending the movable block 106 into movable track one 117 and movable track two 118. During the process, the movable block 106 and the second roller 107 gradually turn, the movable motor 115 faces movable track one 117, and then the guide shafts 116 contact the guide opening 119, guiding the movable block 106 into movable track one 117.

[0038] In this embodiment, a small shaft 105 is fixedly mounted on the connecting rod 104, a sleeve rod 109 is sleeved between two small shafts 105, a crossbar 108 is fixedly mounted between the sleeve rods 109, a guide rod 111 is fixedly mounted on the crossbar 108, and the intermediate spray bottle 112 slides within the guide rod 111. The small shafts 105 move within the sleeve rods 109. A rotating shaft is fixedly mounted on the crossbar 108, a fixed shaft 121 is fixedly mounted at the top of the rotating shaft, a gear 120 is rotatably mounted on the rotating shaft, a spray rod 113 is fixedly mounted on the gear 120, a nozzle 110 is provided on both the intermediate spray bottle 112 and the spray rod 113, a plug-in shaft 122 is slidably mounted on the fixed shaft 121, a small spring 123 is fixedly mounted between the plug-in shaft 122 and the fixed shaft 121, four insertion holes 124 are provided on the spray rod 113, and the plug-in shaft 122 is inserted into the insertion holes 124. Four insertion holes 124 are evenly arranged around the fixed shaft 121. The spray rod 113 can be rotated 90 degrees to allow the insertion shaft 122 to be inserted into the adjacent insertion hole 124. The middle spray bottle 112 is fixedly equipped with racks 125 on both sides. The racks 125 mesh with the gears 120. Through the above technical solution, the storage chamber 4 is sprayed with medicine by moving two moving carts 102, which greatly improves the storage environment in the storage chamber 4. The connection of the connecting rod 104 allows the storage chamber 4 to not only move around the outside of the storage chamber 4, but also to send the middle spray bottle 112 and the spray rod 113 to the middle part of the storage chamber 4 for disinfection. At the same time, the meshing of the gears 120 and the racks 125 allows the spray rod 113 to change direction when moving, further expanding the spraying area.

[0039] Working principle: First, when sweet potatoes are placed in storage chamber 4, the chamber needs to be sprayed with pesticide. This is beneficial for storage, serving two purposes: disinfection and providing a fresh environment. Therefore, the air intake assembly 2 is used to disinfect the storage chamber 4. The assembly moves around the bottom of the storage chamber 4 to spray the pesticide. Then, the sweet potatoes are placed in. If the outdoor temperature is suitable, the front fan 6 and rear fan 7 are activated, creating a cross-ventilation in the middle chamber 3. This creates negative pressure within the middle chamber 3. Air enters the middle chamber 3 from the front fan 6, then passes through the rear fan 7 into the ventilation duct 17. Creating negative pressure allows hot air from storage chamber 4 to enter intermediate chamber 3. At this time, the outdoor air and the air from storage chamber 4 mix and enter ventilation duct 17. A temperature sensor is installed in ventilation duct 17. After temperature adjustment, the air enters air intake component 2 and storage chamber 4. Since the outdoor temperature is uncertain, air intake component 2 needs to further control the temperature. Taking air guide rod 1 203 and air guide rod 204 as examples, the closer the ends of air guide rod 1 203 and air guide rod 204 are in storage chamber 4, the farther the distance is in ventilation duct 17. When the air passes through, it is compressed and the temperature decreases. At this time, the temperature of the air can be further changed, thereby controlling the temperature in storage chamber 4.

[0040] If the outdoor temperature is not suitable for direct introduction into the storage chamber 4, then the front fan 6 is turned off, the rear fan 7 blows air in the opposite direction, and the cooler 15 is turned on. The ventilation duct 17 cools the outdoor air and blows it into the intermediate chamber 3, and then into the storage chamber 4 through the two air intake wheels 10. Specifically, the pressure in the intermediate chamber 3 increases, and the air blown from the front fan 6 to the outside will also blow into the storage chamber 4 through the space between the two air intake wheels 10. At the same time, a baffle can be set at the position of the front fan 6 so that the air blows only into the storage chamber 4. The hot air in the storage chamber 4 returns to the ventilation duct 17 through the air intake assembly 2, and forms a cycle after being cooled. During this process, the angles of the first air guide rod 203 and the second air guide rod 204 change, and the distance between them is closer in the ventilation duct 17 and farther in the storage chamber 4, so the temperature of the air blown into the ventilation duct 17 decreases. During the process, it is necessary to replenish the pesticide at any time. Then, the spraying component 1 is activated. The spraying component 1 can spray the sweet potatoes in the middle of the storage chamber 4. After the middle sprayer 112 is aligned with the moving track 117, the two moving carriages 102 move closer to each other and push the middle sprayer 112 out. Then, the moving block 106 enters the moving track 117, and the rack 125 drives the gear 120. The gear 120 drives the spraying rod 113 to rotate. Finally, the spraying rod 113 is parallel to the guide rod 111. Thus, the middle sprayer 112 is lifted and moves towards the middle of the storage chamber 4. The spraying rod 113 also rotates and goes deeper into the middle of the storage chamber 4 to spray pesticide.

[0041] Although the present invention has been described using the above preferred embodiments, it is not intended to limit the scope of protection of the present invention. Any changes and modifications made by those skilled in the art to the above embodiments without departing from the spirit and scope of the present invention shall still fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be defined by the claims.

Claims

1. A dual-cold-source intelligent switching system for sweet potato storage, characterized in that, The system includes a central room (3), storage rooms (4) on both sides of the central room (3), a spraying assembly (1) in the storage room (4), an mounting plate (18) on the spraying assembly (1), sweet potatoes on the mounting plate (18), an air intake wheel (10) between the central room (3) and the storage room (4), an air intake assembly (2) on the storage room (4), a front fan (6) and a rear fan (7) on both sides of the central room (3), and a cooler (15) on one side of the central room (3) and the storage room (4).

2. The intelligent switching system for dual cold sources for sweet potato storage according to claim 1, characterized in that, Ventilation ducts (17) are installed on one side of the intermediate room (3) and the storage room (4). The cooler (15) is installed in the ventilation ducts (17). The air intake assembly (2) is installed between the storage room (4) and the ventilation ducts (17). The ventilation ducts (17) are connected to the outside.

3. The intelligent switching system for dual cold sources for sweet potato storage according to claim 2, characterized in that, The storage chamber (4) is fixedly equipped with a top cover (11) on the upper side, and a blocking grid (12) is fixedly equipped on the lower side of the top cover (11). A blocking plate (13) is installed on the lower side of the blocking grid (12). The area of ​​the blocking plate (13) is smaller than that of the top cover (11). The air inlet assembly (2) blows air towards the blocking grid (12).

4. The intelligent switching system for dual cold sources for sweet potato storage according to claim 3, characterized in that, A baffle plate (9) is fixedly installed between the intermediate room (3) and the storage room (4). A through hole is provided between the two baffle plates (9) to connect the intermediate room (3) and the storage room (4). Two air intake wheels (10) are installed on the baffle plate (9). The two air intake wheels (10) mesh and rotate to allow ventilation between the intermediate room (3) and the storage room (4).

5. The intelligent switching system for dual cold sources for sweet potato storage according to claim 4, characterized in that, The air intake assembly (2) includes a ventilation sleeve (201), which is installed between the storage chamber (4) and the ventilation duct (17). The ventilation sleeve (201) is rotatably equipped with a first air guide rod (203), a second air guide rod (204), and a third air guide rod (205). The air intake volume is adjusted by controlling the first air guide rod (203), the second air guide rod (204), and the third air guide rod (205) through the drive motor (202).

6. The intelligent switching system for dual cold sources for sweet potato storage according to claim 5, characterized in that, A pulley 1 (206) is fixedly mounted on the lower side of the first air guide rod (203), a pulley 2 (207) is fixedly mounted on the lower side of the second air guide rod (204), and a pulley 3 (208) is fixedly mounted on the lower side of the third air guide rod (205). The diameter of the pulley 3 (208) is smaller than the diameter of the pulley 2 (207), the diameter of the pulley 2 (207) is smaller than the diameter of the pulley 1 (206), a belt 2 (210) is installed between the pulley 3 (208) and the pulley 2 (207), and a belt 1 (209) is installed between the pulley 1 (206) and the pulley 2 (207).

7. The intelligent switching system for dual cold sources for sweet potato storage according to claim 6, characterized in that, The storage chamber (4) has a slide rail around its bottom surface. The spraying assembly (1) moves around the bottom surface of the storage chamber (4). The storage chamber (4) has a fixed moving track one (117) and a moving track two (118) on its bottom surface. The ends of the moving track one (117) and the moving track two (118) are equipped with guide ports (119). The spraying assembly (1) slides onto the moving track one (117) and the moving track two (118) to spray the middle position.

8. A dual-cold-source intelligent switching system for sweet potato storage according to claim 7, characterized in that, The spraying assembly (1) includes two moving carts (102). The lower side of the moving cart (102) is equipped with a first roller (103). The upper side of the moving cart (102) is hinged with a connecting rod (104). The two connecting rods (104) are hinged to each other. A moving block (106) is also hinged at the hinge. The lower side of the moving block (106) is equipped with a second roller (107). The moving block (106) is equipped with an intermediate sprayer (112). The two moving carts (102) move closer to each other to send the moving block (106) into the first moving track (117) and the second moving track (118).

9. A dual-cold-source intelligent switching system for sweet potato storage according to claim 8, characterized in that, A small shaft (105) is fixedly mounted on the connecting rod (104), a sleeve rod (109) is sleeved between the two small shafts (105), a crossbar (108) is fixedly mounted between the sleeve rods (109), a guide rod (111) is fixedly mounted on the crossbar (108), and the intermediate spray bottle (112) slides inside the guide rod (111).

10. A dual-cold-source intelligent switching system for sweet potato storage according to claim 9, characterized in that, A rotating shaft is fixedly mounted on the crossbar (108), and a fixed shaft (121) is fixedly mounted on the top of the rotating shaft. A gear (120) is rotatably mounted on the rotating shaft, and a spraying rod (113) is fixedly mounted on the gear (120). A plug-in shaft (122) is slidably mounted on the fixed shaft (121), and a small spring (123) is fixedly mounted between the plug-in shaft (122) and the fixed shaft (121). Four insertion holes (124) are provided on the spraying rod (113), and the plug-in shaft (122) is inserted into the insertion holes (124).

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