Grain storage barrel

Abstract

The utility model provides a grain storage barrel in the technical field of grain storage devices, which comprises a barrel body, a grain feeding port is arranged at the top of the barrel body, a grain storage area is arranged in the barrel body, the barrel body is cylindrical, a grain discharge area, a rotating shaft assembly and a ventilation and refrigeration component are further arranged in the barrel body, and the grain storage area is arranged below the grain discharge area; a distance sensor and a temperature and humidity sensor are arranged at the top of the grain storage area; the grain storage area comprises a funnel-shaped bottom plate, and meshes are formed in the funnel-shaped bottom plate; a turning cover is arranged on the grain feeding opening; through the combination of meshes and the ventilation and refrigeration assembly, water vapor discharge is accelerated, the problem that a traditional household grain storage device is limited in dehumidification effect is solved, metabolism is slowed down, growth and reproduction of microorganisms and pests are inhibited, and the storage life of grains and beans is prolonged; grain and beans are fed in and discharged out from the bottom through the rotating shaft assembly, grain storage is avoided, and grain aging is prevented; the residual amount of stored grains and beans is detected in real time through the distance sensor, timely supplement is facilitated, and grain interruption is prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of grain storage devices, specifically a grain storage bin. Background Technology

[0002] Grains and legumes such as rice, wheat, corn, soybeans, and some miscellaneous grains are rich in protein, dietary fiber, fat, and carbohydrates, easy to grow and store, and can be processed in various ways. They are an important food reserve for humans. However, if not stored properly, grains and legumes are prone to mold, insect infestation, or oxidation, resulting in nutrient loss and even the production of harmful substances.

[0003] The ideal storage environment for grains and legumes should be kept at a low temperature (usually below 15°C), dry (relative humidity controlled below 65% and grain moisture content below 14%), away from light, and moderately ventilated. At the same time, the storage environment should be clean, sealed, free from insects and rodents, and should be able to prevent insects and mold, inhibit the growth of microorganisms, insect activity and fat oxidation, thereby maintaining quality and extending shelf life.

[0004] Chinese Patent No. ZL202421293308.5 discloses a household grain storage device, including a rice bucket body and a top cover assembly that are connected vertically. The lower end of the rice bucket body is provided with several removable bottom pads, and the inner bottom of the rice bucket body is provided with a removable partition. A dehumidifying component is fixedly connected to the middle of the top cover assembly. The dehumidifying component body extends into the rice bucket body and is connected to the partition. The upper end of the dehumidifying component is connected to the outside, and the lower end of the dehumidifying component is provided with a humidity sensor. This technical solution can automatically detect the humidity of the stored grain in the inner cavity. When the humidity is high, the dehumidifying component dehumidifies the inner cavity, which can prevent the grain from getting damp and moldy. In addition, an insect-proof filling material can be placed in the dehumidifying component to prevent the grain from becoming infested with insects.

[0005] However, this household grain storage device also has the following problems: ① It relies solely on the exhaust fan in the dehumidification component for dehumidification, which is easily affected by the humidity of the storage environment, resulting in limited dehumidification effect; ② This grain storage device can only dehumidify and ventilate, but it cannot lower the storage temperature, inhibit the activity of microorganisms and pests, or extend the storage period of grains and beans. It may even lead to problems such as rancidity of fatty acids or starch saccharification in the stored grains and beans; ③ This household grain storage device uses the grain storage port on the top cover component to take out grains and beans, which means that the grains at the bottom are prone to aging and becoming stale, affecting the nutrition and taste of the grains and beans; ④ It is not possible to intuitively see the remaining amount of grain in the storage device during use. If the cover is not opened in time to check and replenish in time, there is a problem of "running out of grain", making it inconvenient to use. Summary of the Invention

[0006] The technical problem this utility model aims to solve is how to improve the efficiency of cooling and dehumidification to extend the storage period of grains and beans, and how to avoid the aging of stored grains and the inconvenience of knowing the remaining amount of stored grains. The purpose of this utility model is to provide a grain storage container with ventilation and cooling effects, which prevents the aging of grains through first-in-first-out.

[0007] The technical solution adopted by this utility model is as follows: a grain storage bin, including a bin body, a grain filling port at the top of the bin body, a grain storage area inside the bin body, the bin body being cylindrical, and a grain discharge area, a rotating shaft assembly, and a ventilation and cooling component inside the bin body, the grain storage area being located below the grain discharge area; a distance sensor and a temperature and humidity sensor are provided at the top of the grain storage area; the grain storage area includes a funnel-shaped bottom plate with mesh on the funnel-shaped bottom plate; and a flip-top is provided on the grain filling port.

[0008] The following beneficial effects can be achieved by using the grain storage bin provided by this utility model:

[0009] (1) By storing grains and beans from the grain filling port into the funnel-shaped bottom plate at the bottom of the grain storage area in the barrel, the mesh on the funnel-shaped bottom plate combined with the ventilation and cooling components facilitates the discharge of heat or moisture from the grains and beans, preventing the grains and beans from deteriorating in quality or becoming moldy under humid or high-temperature storage conditions for a long time, thereby extending the storage period of the grains and beans and maintaining their freshness and nutritional value.

[0010] (2) By setting up a rotating shaft assembly, the grains stored on the funnel-shaped bottom plate fall from top to bottom into the grain discharge area. When taking out grains, the principle of top in and bottom out and first-in-first-out is realized, which avoids the grains at the bottom from not being discharged in time and thus producing stale grains.

[0011] (3) The height of the grain pile can be converted into the remaining amount of grain through the detection of the distance sensor, so as to provide timely reminders and avoid grain shortage.

[0012] (4) The temperature and humidity in the grain storage area are detected in real time by temperature and humidity sensors. Combined with ventilation and cooling components, the temperature is reduced and the humidity is dehumidified, which slows down the metabolism of grains and beans, inhibits the growth and reproduction of microorganisms and pests, maintains the quality of grains and beans, and extends the storage period.

[0013] The ventilation and cooling assembly includes an air inlet, a micro compressor, an intake pipe, an evaporator, a condenser, an expansion valve, an exhaust port, a cooling fan, and a power supply. The air inlet is located on one side of the bottom of the barrel and communicates with the internal space of the barrel. The exhaust port is located on the top of the barrel and communicates with the grain storage area inside the barrel. The micro compressor is installed at the bottom inside the barrel. The evaporator is located below the funnel-shaped bottom plate and close to the bottom of the outer edge of the funnel-shaped bottom plate. The condenser is installed above the exhaust port. The cooling fan is located between the condenser and the exhaust port.

[0014] The evaporator absorbs heat from the area near the funnel-shaped bottom plate, and the cooling fan accelerates the removal of heat from the condenser while simultaneously circulating air inside the container, expelling heat and moisture from the exhaust port. This keeps the grains and beans stored in the grain storage area in a low-temperature, dry environment.

[0015] The outer side of the barrel is provided with a connecting groove, and the connecting groove is provided with a high-pressure exhaust pipe, a high-pressure liquid pipe, an expansion valve and an evaporator liquid inlet pipe. The micro compressor and the condenser are connected through the high-pressure exhaust pipe, the condenser and the evaporator are connected through the high-pressure liquid pipe, the expansion valve and the evaporator liquid inlet pipe, and the evaporator and the micro compressor are connected through the suction pipe.

[0016] A high-pressure exhaust pipe, high-pressure liquid pipe, expansion valve, and evaporator inlet pipe are installed in the connecting channel. The evaporator and condenser are connected through the high-pressure exhaust pipe, high-pressure liquid pipe, expansion valve, and evaporator inlet pipe, thus forming a complete refrigeration system to cool and dehumidify the stored grains and beans.

[0017] The grain discharge area includes a convex bottom plate; the rotating shaft assembly includes a geared motor, a dome cap, a first grain stirring blade, and a second grain stirring blade. The dome cap is located at the lowest point of the funnel-shaped bottom plate. The power shaft of the geared motor passes through the convex bottom plate in the grain discharge area and is connected to the dome cap shaft on the funnel-shaped bottom plate. There are multiple first grain stirring blades and multiple second grain stirring blades, which are arranged in a ring around the upper and lower sides of the dome cap.

[0018] The dome cap is driven to rotate by a geared motor, which in turn drives the first and second grain stirring blades to rotate.

[0019] The lower edge of the first grain stirring blade is in contact with the upper surface of the funnel-shaped bottom plate, the lower edge of the second grain stirring blade is in contact with the upper surface of the convex bottom plate, and the upper edge of the second grain stirring blade is close to the top of the grain discharge area.

[0020] The first grain stirring blade rotates on the upper surface of the funnel-shaped bottom plate to prevent grain from piling up and clogging. By making the upper and lower edges of the second grain stirring blades fit against the top of the grain discharge area and the upper surface of the convex bottom plate, a partition space for temporary grain storage is formed between two adjacent second grain stirring blades in the grain discharge area, preventing grain from filling the grain discharge area and thus facilitating planned grain discharge.

[0021] The funnel-shaped bottom plate has a first discharge port on the side near the dome cap, and the bottom edge of the convex bottom plate has a vertically downward discharge port on the side away from the first discharge port.

[0022] The first discharge port facilitates the flow of grains from the storage area to the discharge area, while the second discharge port facilitates their discharge from the discharge area. Because the second discharge port is far from the first discharge port, the grains falling from the first discharge port are temporarily stored between two adjacent second stirring blades. The grains located between the two adjacent second stirring blades can only be discharged from the second discharge port when they rotate above the second discharge port with the rotating shaft assembly. Thus, the grains are discharged in a planned manner through the staggered first and second discharge ports. The discharge stops when the rotating shaft assembly stops rotating to prevent accidental spillage.

[0023] A one-way buckle is provided below the second discharge port. The middle part of the one-way buckle is rotatably connected to one side of the second discharge port, and a counterweight is installed at the end of the one-way buckle away from the second discharge port.

[0024] The one-way latch prevents external insects and rodents from entering the grain discharge area through the second discharge port, thus preventing the stored grains from being damaged or contaminated. At the same time, the one-way latch does not affect normal discharge. When storing grains, the one-way latch covers the lower end of the second discharge port under the action of the counterweight. When discharging, the grains fall onto the one-way latch, disrupting the balance between the counterweight and the one-way latch, causing the end of the one-way latch away from the counterweight to rotate downwards, exposing the second discharge port, making it easier for the grains to be discharged from the second discharge port.

[0025] Below the second discharge port is a grain discharge trough, which is located on the bottom of the barrel away from the air inlet. The grain discharge trough is equipped with a pull-out box with a handle.

[0026] The grain discharge trough facilitates the insertion and removal of the pull-out box. When removing grain, the grains fall into the pull-out box from the second discharge port. After removing the grains, the handle makes it easy to remove the pull-out box.

[0027] A controller is installed on the barrel, and the geared motor, distance sensor, temperature and humidity sensor, micro compressor, cooling fan and power supply are all electrically connected to the controller.

[0028] The controller facilitates the operation of the miniature compressor for cooling and the cooling fan for airflow. During use, a distance sensor detects the height of the stored grains to determine the remaining amount, providing an immediate alert when the grain level is low. Temperature and humidity sensors allow for real-time monitoring of the storage environment's temperature and humidity. When the temperature is high, the controller activates the compressor to dehumidify using the evaporator, while the cooling fan accelerates cooling. The cooling fan also speeds up airflow within the storage area, drawing out hot air and automatically replenishing it with fresh air under pressure from the air inlet, thus further cooling the area.

[0029] A dustproof net is installed at the connection between the air inlet and the inside of the barrel.

[0030] By installing a dustproof net at the air inlet, external dust or debris is prevented from being sucked into the grain storage area during ventilation and cooling, thus preventing the grain from being contaminated. In daily storage, it also prevents pests from entering the container through the air inlet, thereby avoiding damage and contamination of the grain by pests.

[0031] The bottom of the barrel is equipped with support legs.

[0032] The bucket is raised by supporting legs to prevent it from directly contacting the ground, thus preventing moisture and facilitating the maintenance of its level and stability. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a three-dimensional structural diagram from the main perspective of this utility model;

[0035] Figure 2 This is a three-dimensional structural diagram of the present invention from a rear view.

[0036] Figure 3 This is the front view of this utility model;

[0037] Figure 4 This is a utility model Figure 3 A three-dimensional structural diagram of the cross-section at point AA;

[0038] Figure 5 This is a utility model Figure 3 Sectional view at point BB;

[0039] Figure 6 This is a cross-sectional view of the flip-top opening in this utility model to expose the grain filling port;

[0040] Figure 7 This is a cross-sectional view of the flip cover and one-way buckle in this utility model when they are fully opened;

[0041] Figure 8 This is a three-dimensional structural diagram of the rotating shaft assembly in this utility model.

[0042] Attached reference numerals: 1-Barrel body, 11-Grain filling port, 111-Flip lid, 12-Controller, 13-Grain discharge trough, 131-Pull-out box, 132-Handle, 14-Support leg, 15-Connecting trough, 2-Grain storage area, 21-Funnel-shaped bottom plate, 211-Mesh, 22-First discharge port, 23-Distance sensor, 24-Temperature and humidity sensor, 3-Grain discharge area, 31-Convex bottom plate, 32-Second discharge port, 321-One-way buckle plate, 322-Counterweight block, 4-Spindle assembly, 41-Gear motor, 42-Dome cap, 43-First grain stirring blade, 44-Second grain stirring blade, 5-Ventilation and cooling components, 51-Air inlet, 511-Dustproof net, 52-Miniature compressor, 53-Evaporator, 54-Condenser, 55-Exhaust port, 551-Cooling fan, 56-Power supply. Detailed Implementation

[0043] The following will be combined with the appendix Figure 1-7 The technical solution of this utility model is clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0045] Example 1

[0046] The following description, in conjunction with specific embodiments, provides further details. Figure 1-7As shown, this embodiment is a grain storage bin, including a bin body 1, a grain filling port 11 at the top of the bin body 1, and a grain storage area 2 inside the bin body 1. The bin body 1 is cylindrical, and also includes a grain discharge area 3, a rotating shaft assembly 4, and a ventilation and cooling assembly 5 inside the bin body 1. The grain storage area 2 is located below the grain discharge area 3. A distance sensor 23 and a temperature and humidity sensor 24 are provided on the top of the grain storage area 2. The grain storage area 2 includes a funnel-shaped bottom plate 21, and a mesh 211 is provided on the funnel-shaped bottom plate 21. A flip-top 111 is provided on the grain filling port 11. Through the mesh 211 on the funnel-shaped bottom plate 21... The ventilation and cooling components 5 facilitate the removal of heat or moisture from the grains and beans; the rotating shaft assembly 4 allows the grains and beans stored on the funnel-shaped bottom plate 21 to fall from top to bottom into the grain discharge area 3, achieving top-in, bottom-out and first-in, first-out; the distance sensor 23 detects the remaining amount of stored grain for timely reminders; the temperature and humidity sensor 24 monitors the temperature and humidity in the grain storage area 2 in real time, and the ventilation and cooling components 5 cool and dehumidify, thereby slowing down the metabolism of the grains and beans stored in the grain storage area 2, inhibiting the growth and reproduction of microorganisms and pests, maintaining the quality of the grains and beans, and extending the storage period.

[0047] The ventilation and cooling assembly 5 includes an air inlet 51, a micro compressor 52, an air intake pipe, an evaporator 53, a condenser 54, an expansion valve, an exhaust port 55, a cooling fan 551, and a power supply 56. The air inlet 51 is located on one side of the bottom of the barrel 1 and communicates with the internal space of the barrel 1. The exhaust port 55 is located on the top of the barrel 1 and communicates with the grain storage area 2 inside the barrel 1. The micro compressor 52 is installed at the bottom of the inner side of the barrel 1. The evaporator 53 is located below the funnel-shaped bottom plate 21 and close to the bottom of the outer edge of the funnel-shaped bottom plate 21. The condenser 54 is installed above the exhaust port 55. The cooling fan 551 is located between the condenser 54 and the exhaust port 55. The evaporator 53 absorbs heat near the funnel-shaped bottom plate 21, and the cooling fan 551 accelerates the heat discharge from the condenser 54 while causing air to circulate inside the barrel 1, expelling heat and moisture from the exhaust port 55, thereby keeping the grains stored in the grain storage area 2 in a low-temperature and dry environment.

[0048] The outer side of the barrel 1 is provided with a connecting groove 15. The connecting groove 15 is provided with a high-pressure exhaust pipe, a high-pressure liquid pipe, an expansion valve and an evaporator inlet pipe. The micro compressor 52 is connected to the condenser 54 through the high-pressure exhaust pipe. The condenser 54 is connected to the evaporator 53 through the high-pressure liquid pipe, the expansion valve and the evaporator inlet pipe. The evaporator 53 is connected to the micro compressor 52 through the suction pipe. The high-pressure exhaust pipe, the high-pressure liquid pipe, the expansion valve and the evaporator inlet pipe are placed through the connecting groove 15. The evaporator 53 and the condenser 54 are connected through the high-pressure exhaust pipe, the high-pressure liquid pipe, the expansion valve and the evaporator inlet pipe, thus forming a complete refrigeration system to cool and dehumidify the stored grains and beans.

[0049] The grain discharge zone 3 includes a convex bottom plate 31; the rotating shaft assembly 4 includes a reduction motor 41, a dome cap 42, a first grain stirring blade 43, and a second grain stirring blade 44. The dome cap 42 is located at the lowest point of the funnel-shaped bottom plate 21. The power shaft of the reduction motor 41 passes through the convex bottom plate 31 in the grain discharge zone 3 and is connected to the dome cap 42 on the funnel-shaped bottom plate 21. There are multiple first grain stirring blades 43 and multiple second grain stirring blades 44. The multiple first grain stirring blades 43 and the multiple second grain stirring blades 44 are arranged in a ring around the upper and lower sides of the dome cap 42, respectively. The reduction motor 41 drives the dome cap 42 to rotate, and the dome cap 42 simultaneously drives the first grain stirring blades 43 and the second grain stirring blades 44 to rotate.

[0050] The lower edge of the first stirring blade 43 is in contact with the upper surface of the funnel-shaped bottom plate 21, the lower edge of the second stirring blade 44 is in contact with the upper surface of the convex bottom plate 31, and the upper edge of the second stirring blade 44 is close to the top of the discharge area 3. By rotating the first stirring blade 43 on the upper surface of the funnel-shaped bottom plate 21, the accumulation and blockage of grains are prevented. By making the upper and lower edges of the second stirring blade 44 in contact with the top of the discharge area 3 and the upper surface of the convex bottom plate 31 respectively, a partition space for temporary grain storage is formed between two adjacent second stirring blades 44 in the discharge area 3, preventing the grains from covering the discharge area 3, thereby facilitating planned grain discharge.

[0051] The funnel-shaped bottom plate 21 has a first discharge port 22 on the side near the dome cap 42, and the bottom edge of the convex bottom plate 31 has a vertically downward second discharge port 32 on the side away from the first discharge port 22. The first discharge port 22 facilitates the grains from the storage area 2 to the discharge area 3, and the second discharge port 32 facilitates the discharge of the grains from the discharge area 3. Since the second discharge port 32 is far from the first discharge port 22, the grains falling from the first discharge port 22 are temporarily stored between two adjacent second stirring blades 44. The grains located between the two adjacent second stirring blades 44 can only be discharged from the second discharge port 32 when the rotating shaft assembly 4 rotates to above the second discharge port 32. Thus, the grains are discharged in a planned manner through the staggered first discharge port 22 and second discharge port 32. The discharge stops when the rotating shaft assembly 4 stops rotating to prevent accidental spillage of grains during discharge.

[0052] A one-way buckle plate 321 is provided below the second discharge port 32. The middle part of the one-way buckle plate 321 is rotatably connected to one side of the second discharge port 32. A counterweight block 322 is installed at the end of the one-way buckle plate 321 away from the second discharge port 32. The one-way buckle plate 321 prevents external insects and rodents from entering the grain discharge area 3 from the second discharge port 32, preventing the stored grains from being damaged or contaminated. At the same time, the one-way buckle plate 321 does not affect normal discharge. When storing grains, the one-way buckle plate 321 covers the lower end of the second discharge port 32 under the action of the counterweight block 322. When discharging, the grains fall on the one-way buckle plate 321, disrupting the balance between the counterweight block 322 and the one-way buckle plate 321, causing the end of the one-way buckle plate 321 away from the counterweight block 322 to rotate downward, exposing the second discharge port 32, so that the grains can be discharged from the second discharge port 32.

[0053] Below the second feeding port 32, there is a grain discharge trough 13. The grain discharge trough 13 is located on the bottom of the barrel 1 away from the air inlet 51. The grain discharge trough 13 is equipped with a pull-out box 131, and the pull-out box 131 is equipped with a handle 132. The pull-out box 131 can be easily put into or taken out through the grain discharge trough 13. When taking out grain, the grains fall from the second feeding port 32 into the pull-out box 131. After taking out the grains, the pull-out box 131 can be easily taken out using the handle 132.

[0054] A controller 12 is installed on the barrel 1. The distance sensor 23, temperature and humidity sensor 24, micro compressor 52, cooling fan 551, and power supply 56 are all electrically connected to the controller 12. The controller 12 can control the micro compressor 52 for cooling and the cooling fan 551 for airflow. During use, the distance sensor 23 detects the height of the stored grains to detect the remaining amount of grains, so as to provide an immediate reminder when the grain storage is insufficient. The temperature and humidity sensor 24 can detect the temperature and humidity of the grain storage environment in real time. When the temperature is high, the controller 12 controls the compressor to run, and the evaporator 53 is used for dehumidification. Combined with the cooling fan 551, the cooling fan 551 accelerates the cooling. When the temperature is high, the cooling fan 551 accelerates the airflow in the grain storage area 2. The cooling fan 551 draws out the hot air in the grain storage area 2, and fresh air is automatically replenished into the grain storage area 2 from the air inlet 51 under pressure, thereby accelerating the cooling by accelerating the airflow.

[0055] A dustproof net 511 is installed at the connection between the air inlet 51 and the inside of the barrel 1. By installing the dustproof net 511 at the air inlet 51, external dust or debris is prevented from being sucked into the grain storage area 2 during ventilation and cooling, thereby preventing the grain from being contaminated. In daily storage, it can also prevent pests from entering the barrel 1 through the air inlet 51 and damaging or contaminating the grain.

[0056] The bottom of the barrel 1 is equipped with support legs 14; the support legs 14 raise the barrel 1 as a whole, preventing the barrel 1 from directly contacting the ground, thus preventing moisture, and also helping to maintain the level and stability of the barrel 1.

[0057] Example 2

[0058] When in use, open the flip cover 111 on the top of the bucket 1 to expose the grain filling port 11. Pour the grains such as rice, wheat, corn, peas, mung beans or red beans that need to be stored into the grain storage area 2 in the middle of the bucket 1 through the grain filling port 11. Then close the flip cover 111 and activate the temperature and humidity sensor 24 and the distance sensor 23 through the controller 12.

[0059] During routine storage, power is supplied by power source 56, and temperature and humidity sensors 24 monitor the temperature and humidity in the grain storage area 2 in real time. When the temperature and humidity sensor 24 detects that the temperature is too high, the controller 12 controls the cooling fan 551 to rotate, drawing hot air from the grain storage area 2 out through the exhaust port 55. Fresh air is then filtered through the dust filter 511 and introduced into the container 1. As it passes through the funnel-shaped bottom plate with mesh 211 at the bottom of the grain storage area 2 and the gaps between the grains, it carries away the heat from the grains, preventing the storage temperature from becoming too high. When the ventilation effect of the cooling fan 551 alone is insufficient to lower the temperature, the controller 12 controls the micro compressor 52 to start. The micro compressor 52 compresses the gaseous refrigerant into a high-temperature, high-pressure solution. The high-temperature, high-pressure gas is cooled by the cooling fan 551 at the condenser 54 at the top of the barrel 1, turning into a high-pressure liquid. After passing through the expansion valve, the pressure of the high-pressure liquid drops sharply, throttling into a low-temperature, low-pressure mist liquid. Then, the low-temperature, low-pressure refrigerant absorbs the heat around the evaporator 53 as it flows through it, thereby lowering the temperature of the funnel-shaped bottom plate 21 located above the evaporator 53. At the same time, combined with the action of the cooling fan 551, cold air passes through the mesh 211 on the funnel-shaped bottom plate 21 and the gaps between the grains and beans, expelling the heat from the grains and beans through the exhaust port 55. This keeps the stored grains and beans in a low-temperature, dry environment, slowing down the metabolism of the grains and beans, inhibiting the growth and reproduction of microorganisms and pests, and extending the storage period of the grains and beans.

[0060] When grains need to be removed, power is supplied by the power source, and the rotation of the geared motor 41 and the rotating shaft assembly 4 is controlled by the controller 12. The rotating shaft assembly 4 drives the first grain stirring blade 43 and the second grain stirring blade 44 to rotate. The first grain stirring blade 43 can prevent grains from clogging at the first discharge port 22, so that the grains can fall smoothly down from the first discharge port 22 at the bottom of the funnel-shaped bottom plate 21. The grains falling from the first discharge port 22 fall into the grain discharge area 3, are blocked by the two adjacent second grain stirring blades 44, and rotate together with the second grain stirring blades 44 to the top of the second discharge port 32 and then exit from the second discharge port. 32 falls downwards, and the grains that do not rotate to the second stirring blade 44 continue to be stored in the convex bottom plate 31; the grains falling from the second discharge port 32 are pushed open by gravity and finally fall into the pull box 131 in the grain discharge trough 13. After taking out an appropriate amount of grains, the controller 12 controls the reduction motor 41 to stop rotating, and the second stirring blade 44 stops rotating. The grains that are not above the second discharge port 32 continue to remain in the grain discharge area 3 due to the obstruction of the second stirring blade 44. Finally, the pull box 131 can be pulled out by the handle 132 to take out the required grains.

[0061] During use, the distance sensor 23 detects the distance between itself and the topmost grain in real time. As the grain is continuously removed, the distance between the distance sensor 23 and the top of the stored grain gradually increases. When the detected distance reaches a certain threshold, the controller 12 can issue a reminder to facilitate timely replenishment and prevent grain shortage. Since the grain is top-in and bottom-out, and first-in-first-out, it can prevent grain from being stored and avoid the formation of stale grain.

[0062] The directional terms used in this utility model, such as "center," "up," "down," "left," "right," "vertical," "horizontal," "inner," and "outer," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0063] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A grain storage tank, comprising a tank body (1), a grain inlet (11) is arranged on the top of the tank body (1), and a grain storage area (2) is arranged in the tank body (1), characterized in that: The barrel body (1) is cylindrical, and the barrel body (1) is further provided with a grain discharging area (3), a rotating shaft assembly (4) and a ventilation and refrigeration assembly (5), the grain storage area (2) is arranged below the grain discharging area (3); the top of the grain storage area (2) is provided with a distance sensor (23) and a temperature and humidity sensor (24); the grain storage area (2) comprises a funnel-shaped bottom plate (21), and the funnel-shaped bottom plate (21) is provided with mesh (211); the grain inlet (11) is provided with a flip cover (111).

2. The grain storage silo of claim 1, wherein: The ventilation and refrigeration assembly (5) comprises an air inlet (51), a micro-compressor (52), a suction pipe, an evaporator (53), a condenser (54), an expansion valve, an air outlet (55), a heat dissipation fan (551) and a power supply (56), the air inlet (51) is arranged at one side of the bottom of the barrel body (1) and communicates with the internal space of the barrel body (1), the air outlet (55) is arranged at the top of the barrel body (1) and communicates with the grain storage area (2) in the barrel body (1), the micro-compressor (52) is installed at the bottom of the inner side of the barrel body (1), the evaporator (53) is arranged below the funnel-shaped bottom plate (21) and is close to the bottom of the outer side edge of the funnel-shaped bottom plate (21), the condenser (54) is installed above the air outlet (55), and the heat dissipation fan (551) is arranged between the condenser (54) and the air outlet (55).

3. The grain storage silo of claim 2, wherein: The outer side of the barrel body (1) is provided with a communication groove (15), the communication groove (15) is provided with a high-pressure exhaust pipe, a high-pressure liquid pipe, an expansion valve and an evaporator liquid inlet pipe, the micro-compressor (52) and the condenser (54) are connected through the high-pressure exhaust pipe, the condenser (54) and the evaporator (53) are connected through the high-pressure liquid pipe, the expansion valve and the evaporator liquid inlet pipe, and the evaporator (53) and the micro-compressor (52) are connected through the suction pipe.

4. The grain storage silo of claim 3, wherein: The grain discharging area (3) comprises a convex bottom plate (31); the rotating shaft assembly (4) comprises a speed reducer (41), a dome cap (42), first grain stirring blades (43) and second grain stirring blades (44), the dome cap (42) is arranged at the lowest part of the funnel-shaped bottom plate (21), and the power shaft of the speed reducer (41) is connected with the dome cap (42) shaft on the funnel-shaped bottom plate (21) after penetrating through the convex bottom plate (31) in the grain discharging area (3).

5. The grain storage silo of claim 4, wherein: The first grain stirring blades (43) and the second grain stirring blades (44) are both provided with a plurality of first grain stirring blades (43) and a plurality of second grain stirring blades (44), and the plurality of first grain stirring blades (43) and the plurality of second grain stirring blades (44) are respectively arranged in a ring shape around the upper and lower sides of the dome cap (42); the lower edge of the first grain stirring blades (43) and the upper surface of the funnel-shaped bottom plate (21) are mutually attached, the lower edge of the second grain stirring blades (44) and the upper surface of the convex bottom plate (31) are mutually attached, and the upper edge of the second grain stirring blades (44) and the top of the grain discharging area (3) are close to each other.

6. The grain storage silo of claim 4, wherein: The funnel-shaped bottom plate (21) is provided with a first discharging port (22) near one side of the dome cap (42), and the edge bottom of the convex bottom plate (31) is provided with a second discharging port (32) vertically downward away from the first discharging port (22); a one-way buckle plate (321) is arranged below the second discharging port (32), the middle part of the one-way buckle plate (321) is rotationally connected to one side of the second discharging port (32), and a counterweight (322) is installed at one end of the one-way buckle plate (321) away from the second discharging port (32).

7. The grain storage silo of claim 6, wherein: A grain discharging groove (13) is arranged below the second discharging port (32), the grain discharging groove (13) is arranged at the bottom of the barrel body (1) away from the air inlet (51), and a pull-out box (131) is arranged in the grain discharging groove (13).

8. The grain storage silo of claim 4, wherein: A controller (12) is installed on the barrel body (1), and the speed reducer motor (41) is electrically connected to the distance sensor (23), the temperature and humidity sensor (24), the miniature compressor (52), the heat dissipation fan (551) and the power supply (56).

9. The grain storage silo of claim 2, wherein: A dust screen (511) is installed at the communication position of the air inlet (51) and the inside of the barrel body (1).

10. The grain storage silo of claim 1, wherein: A supporting leg (14) is installed at the bottom of the barrel body (1).

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