A smart grain warehouse

Abstract

This invention relates to the field of grain storage technology, and in particular provides an intelligent grain storage system, comprising a main storage unit, a sampling mechanism disposed within the main storage unit, and a detection mechanism disposed on the sampling mechanism; a liner protruding upward from the bottom of the inner cavity of the main storage unit, with a plurality of grain inlet holes extending downward from the top periphery of the liner, the plurality of grain inlet holes being equidistantly distributed in the depth direction of the main storage unit; a through hole communicating with the cavity of the liner is provided on the bottom of the main storage unit; the sampling mechanism includes a sampling tube installed upward from the through hole into the cavity of the liner, the top end of the sampling tube having a sampling port; a humidity sensor detecting the actual humidity of the sample, the detected humidity signal being fed back to the controller, and then fed back to the remote panel by the controller.

Description

Technical Field

[0001] This invention relates to the field of grain storage technology, and in particular to an intelligent grain storage system. Background Technology

[0002] To achieve systematic and effective grain management, and to reduce personnel expenses and costs, existing grain silos employ intelligent management models. For example, patent application number 202010636204X discloses an intelligent grain silo that utilizes numerous intelligent modules to enable cloud computing and accurately collect all information during grain storage. While cloud computing in grain silos allows for remote feedback of grain storage information, the location and environment of the stored grain can change due to factors such as weather variations (e.g., fluctuating room temperature), leading to moisture and mold growth. Current technologies cannot automatically detect mold in every grain silo because most grain silo structures, as disclosed in patent application number 2017212314460, require manual inspection, which is inefficient. Summary of the Invention

[0003] The technical problem to be solved by this invention is that each grain warehouse is equipped with an automatic detection function for mold indicators, which improves detection efficiency.

[0004] The technical solution of the present invention is an intelligent grain warehouse, comprising a main warehouse, a sampling mechanism disposed within the main warehouse, and a detection mechanism disposed on the sampling mechanism;

[0005] The main compartment is equipped with a liner tube, which is a tube protruding upward from the bottom of the inner cavity of the main compartment. Several grain inlet holes are opened downward from the top periphery of the liner tube, and the several grain inlet holes are evenly distributed in the depth direction of the main compartment.

[0006] A through hole communicating with the liner tube cavity is provided on the bottom surface of the main body compartment. The sampling mechanism includes a sampling tube installed upward through the through hole in the liner tube cavity. The top end of the sampling tube is provided with a sampling port. When the sampling tube moves up and down, it can change the position of the sampling port in all the grain inlets. When the sampling tube descends along the liner tube, it can allow the grain in the main body compartment to pass through the grain inlets sequentially into the liner tube, and enter the sampling tube through the sampling port as the sampling port descends. The outer wall surface of the sampling tube is provided with graduations.

[0007] The sampling mechanism further includes a spiral toothed plate filled in the sampling tube, the spiral shape of which is equidistantly distributed along the depth of the sampling tube cavity;

[0008] A first depth difference is formed between the top of the helical toothed plate and the sampling port. The bottom end of the sampling tube is provided with an inclined downward curved section. The bottom end of the helical toothed plate is close to the curved section and forms a second depth difference with the curved section. The detection mechanism includes a shaft disposed in the curved section and an impeller mounted on the shaft via a bearing. An exhaust port is provided on the curved section. The detection mechanism also includes a humidity sensor disposed in the exhaust port, and the humidity sensor is electrically connected to the controller.

[0009] The bottom of the main compartment is provided with a support frame. The detection mechanism also includes an electric cylinder fixed on the support frame and a lifting plate sliding on the support frame. The actuating rod of the electric cylinder is vertically downward and fixed on the lifting plate. The other end of the lifting plate is fixed on the sampling tube. The detection mechanism also includes a controller fixed on the lifting plate. The controller is provided with a temperature sensor for detecting the ambient temperature. The controller is provided with a temperature module and a humidity module. The controller is provided with a display screen on the outside.

[0010] More preferably, the top of the main compartment is provided with a compartment cover, the compartment cover protrudes upward, and a lifting handle is installed on the compartment cover.

[0011] More preferably, the main compartment is a conical compartment that gradually widens from the bottom up, so that a conical storage space is formed between the cavity wall of the main compartment and the outer wall of the liner.

[0012] More preferably, the cross-sectional shape of the curved section is quadrilateral, and the outline of the curved section gradually tapers from the bottom end to the bottom end of the sampling tube. The exhaust port is opened at the bottom outline of the curved section, and the exhaust port is provided with an outwardly protruding gas collecting chamber. The inner end of the gas collecting chamber communicates with the inner cavity of the curved section through the exhaust port. The shaft passes through the curved section, one end of the shaft extends from the exhaust port into the gas collecting chamber, and the other end of the shaft is fixed to the outer wall of the curved section. The impeller is fixed to the shaft and located in the cavity of the curved section. A grain discharge gap is left between the blades of the impeller and the bottom surface of the cavity of the curved section.

[0013] More preferably, each blade of the impeller is provided with a secondary blade that bends toward the gas collection chamber. When the secondary blade rotates with the blade, it can provide gas from the inner cavity of the bend into the gas collection chamber, and the detection probe of the humidity sensor enters the gas collection chamber.

[0014] More preferably, the gas collecting chamber is a cone-shaped chamber that is larger on the outside and smaller on the inside.

[0015] More preferably, the upper half of the discharge bottom of the curved section is covered by a baffle plate fixed on the same side as the gas collecting chamber, and the baffle plate completely covers the gas collecting chamber.

[0016] More preferably, the shaft is located at the bottom end of the second depth drop.

[0017] The advantages of this invention compared to the prior art are as follows: An upwardly protruding liner is installed inside the grain silo. The liner has a large number of grain inlet holes from top to bottom. The sampling tube slides through the liner, and the sampling tube can descend with the sampling port at the top. When the sampling port descends below a certain layer of grain inlet holes, the grain inlet holes of that layer on the liner will open, and the grain will flow through the grain inlet holes of that layer into the sampling tube. As the sampling port continues to descend with the sampling tube, the grain inlet holes of each layer open in sequence, and the grain in each layer flows through the grain inlet holes into the sampling tube in sequence, and is discharged outward through the sampling tube. Because the grain enters the sampling tube through these grain inlet holes of different heights in a layered manner, and is then discharged outward through the sampling tube, it is possible to complete the sampling of grain at different depths. To enable remote detection of mold conditions after grain sampling, a spiral toothed plate was first installed in the sampling tube. As the grain is discharged through the tube, it follows the spiral contour of the toothed plate, accelerating the sampling process until it falls at high speed into the curved section from the second depth drop. The impact force of the grain exceeds the impeller's rotational resistance, causing it to rotate. Since the grain is continuously poured into the sampling tube as it descends, a large amount of grain sample falls continuously from the second depth drop onto the impeller, providing impact force to the blades and causing them to rotate. The rotating impeller generates airflow, which blows onto the grain, mixing with its odor, and is then discharged through the exhaust port to the humidity sensor. The humidity sensor detects the sample's actual humidity, and the detected humidity signal is fed back to the controller, which then transmits it to the remote panel. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of an intelligent grain warehouse provided for an embodiment of the present invention;

[0019] Figure 2 An intelligent grain warehouse provided for an embodiment of the present invention consists of... Figure 1 A schematic diagram of the main view plane structure is shown.

[0020] Figure 3 A schematic diagram of the structure of an intelligent grain warehouse from a bottom-up perspective, provided for an embodiment of the present invention;

[0021] Figure 4A top-view structural diagram of an intelligent grain warehouse when removing its cover, provided as an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of the structure of an intelligent grain warehouse from a side view after partial cross-section, provided for an embodiment of the present invention;

[0023] Figure 6 An intelligent grain warehouse provided for an embodiment of the present invention consists of... Figure 5 A structural diagram from the other side of the viewpoint;

[0024] Figure 7 A schematic diagram illustrating the operational principle of an intelligent grain warehouse during sampling and testing, provided for an embodiment of the present invention;

[0025] Figure 8 An intelligent grain warehouse provided for an embodiment of the present invention consists of... Figure 7 A schematic diagram of the enlarged structure of part A.

[0026] In the diagram: 1. Main compartment; 2. Sampling mechanism; 3. Detection mechanism; 4. Liner; 5. Grain inlet; 6. Through hole; 7. Sampling tube; 8. Sampling port; 9. Spiral toothed plate; 10. First depth drop; 11. Bending section; 12. Support frame; 13. Electric cylinder; 14. Lifting plate; 15. Controller; 16. Temperature sensor; 17. Second depth drop; 18. Shaft; 19. Impeller; 20. Exhaust port; 21. Humidity sensor; 22. Compartment cover; 23. Storage space; 24. Gas collection chamber; 25. Grain discharge gap; 26. Secondary blade; 27. Baffle; 28. Scale. Detailed Implementation

[0027] The above and other embodiments and advantages of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] In one implementation, such as Figures 1-8 As shown:

[0029] This embodiment provides an intelligent grain warehouse, which includes a main warehouse 1, a sampling mechanism 2 installed in the main warehouse 1, and a detection mechanism 3 installed on the sampling mechanism 2.

[0030] The main chamber 1 is equipped with a liner 4, which is a tube protruding upward from the bottom of the inner cavity of the main chamber 1. Several grain inlet holes 5 are opened downward from the top periphery of the liner 4. The grain inlet holes 5 are evenly distributed in the depth direction of the main chamber 1. The top of the main chamber 1 is equipped with a cover 22, which protrudes upward and is equipped with a lifting handle.

[0031] A through hole 6 is provided on the bottom surface of the main body 1, which communicates with the cavity of the liner tube 4. The sampling mechanism 2 includes a sampling tube 7 installed upward through the through hole 6 in the cavity of the liner tube 4. The top end of the sampling tube 7 is provided with a sampling port 8. When the sampling tube 7 moves up and down, it can change the position of the sampling port 8 in all the grain inlet holes 5. When the sampling tube 7 descends along the liner tube 4, it can allow the grain in the main body 1 to pass through the grain inlet holes 5 in sequence and enter the liner tube 4. As the sampling port 8 descends, it enters the sampling tube 7 through the sampling port 8. The outer wall surface of the sampling tube 7 is provided with a scale 28.

[0032] The sampling mechanism 2 also includes a spiral toothed plate 9 filled in the sampling tube 7, and the spiral shape of the spiral toothed plate 9 is evenly distributed along the depth of the cavity of the sampling tube 7.

[0033] A first depth difference 10 is formed between the top of the spiral toothed plate 9 and the sampling port 8. The bottom end of the sampling tube 7 is provided with a downwardly inclined curved part 11. The bottom end of the spiral toothed plate 9 is close to the curved part 11 and forms a second depth difference 17 with the curved part 11. The detection mechanism 3 also includes a shaft 18 disposed in the curved part 11 and an impeller 19 mounted on the shaft 18 by bearings. An exhaust port 20 is provided on the curved part 11. The detection mechanism 3 also includes a humidity sensor 21 disposed in the exhaust port 20. The humidity sensor 21 is electrically connected to the controller 15.

[0034] The bottom of the main compartment 1 is provided with a support frame 12. The detection mechanism 3 includes an electric cylinder 13 fixed on the support frame 12 and a lifting plate 14 sliding on the support frame 12. The actuating rod of the electric cylinder 13 is vertically downward and fixed on the lifting plate 14. The other end of the lifting plate 14 is fixed on the sampling tube 7. The detection mechanism 3 also includes a controller 15 fixed on the lifting plate 14. The controller 15 is provided with a temperature sensor 16 for detecting the ambient temperature. The controller 15 is provided with a temperature module and a humidity module. The controller 15 is provided with a display screen on the outside.

[0035] When grain is stored in the main storage compartment 1, because the main storage compartment 1 has a certain depth, when the temperature of the external environment is lower than the room temperature, the temperature sensor 16 feeds back the signal to the temperature module, and the temperature module sends the signal to the controller 15. The controller 15 instructs the electric cylinder 13 to be energized and work. The action rod of the electric cylinder 13 extends downward and pushes the lifting plate 14 down. The lifting plate 14 carries the sampling tube 7 down, and the sampling tube 7 carries the sampling port 8 at the top down. When the sampling port 8 descends below a certain layer of grain inlet hole 5, the grain inlet hole 5 of that layer will open, and the grain will flow through the grain inlet hole 5 of that layer into the sampling tube 7. As the sampling port 8 continues to descend with the sampling tube 7, the grain inlet holes 5 of each layer open in sequence, and the grain in each layer flows through the grain inlet hole 5 into the sampling tube 7 in sequence, and is discharged outward through the sampling tube 7. Because the grain enters the sampling tube 7 through these grain inlet holes 5 of different heights in a layered manner, and is then discharged outward through the sampling tube 7, it is possible to complete the sampling of grain at different depths. In this embodiment, to ensure that the mold conditions after grain sampling are suitable for remote detection, a spiral toothed plate 9 is first installed in the sampling tube 7. Therefore, when the grain is discharged outward through the cavity of the sampling tube 7, it will be discharged outward along the spiral contour of the spiral toothed plate 9. This will accelerate the grain sampling and discharge process, until it falls at high speed from the second depth drop 17 into the curved section 11. At this point, the grain has impact force, which will exceed the rotational resistance of the impeller 19, and when it falls on the impeller 19, it will cause the impeller 19 to rotate. Since the grain is continuously poured into the sampling tube 7 as it descends during sampling, the sampling... During sampling, a large quantity of grain samples will continuously fall onto the impeller 19 via the second depth drop 17, providing impact force to the blades and causing the impeller 19 to rotate. As the impeller 19 rotates, its blades generate airflow, which is also blown onto the grain. This airflow, mixed with the odor from the grain, is discharged through the exhaust port 20 to the humidity sensor 21, allowing the humidity sensor 21 to detect the actual humidity of the sample. The detected humidity signal is fed back to the controller 15, where the humidity module converts it into data information and displays it on a panel. A remote panel can be used instead, displaying the data for remote observation. Based on the humidity data, it can be determined whether the grain has become moldy or is about to become moldy. This humidity data can be obtained through experimental testing; different varieties of grain have different humidity conditions for reaching mold, therefore this invention does not impose mandatory limitations.

[0036] In this embodiment, in addition to automatic sampling, the sampling tube 7 also allows each layer of grain to enter the sampling tube 7 during its descent, resulting in a grain sample that covers grains of varying depths and improving sampling quality. The descent sampling action of the sampling tube 7 also allows the grain sample to fall into the tube. Furthermore, the spiral toothed plate 9 in the sampling tube 7 provides a two-stage falling condition for the grain sample. This falling condition allows the grain sample to accelerate during discharge and impact the impeller 19, causing it to rotate. This provides the humidity sensor 21 with an airflow-like detection condition for the sampled grain.

[0037] like Figure 6 As shown, the main chamber 1 is a cone-shaped chamber that gradually thickens from the bottom up, so that the cavity wall of the main chamber 1 and the outer wall of the liner 4 form a cone-shaped storage space 23. The cone-shaped storage space 23 allows grains at different depths in the storage space 23 to flow into the liner 4 when each layer of grain inlet hole 5 on the liner 4 is opened, thus speeding up the sampling speed.

[0038] like Figures 3 to 8 As shown, the cross-sectional shape of the curved section 11 is quadrilateral. The outline of the bottom end of the curved section 11 gradually tapers to the bottom end of the sampling tube 7. The exhaust port 20 is opened at the bottom outline of the curved section 11. The exhaust port 20 is provided with an outwardly protruding gas collecting chamber 24. The inner end of the gas collecting chamber 24 communicates with the inner cavity of the curved section 11 through the exhaust port 20. The shaft 18 passes through the curved section 11. One end of the shaft 18 extends from the exhaust port 20 into the gas collecting chamber 24. The other end of the shaft 18 is fixed to the outer wall of the curved section 11. The impeller 19 is fixed on the shaft 18 and located in the cavity of the curved section 11. A grain discharge gap 25 is left between the blades on the impeller 19 and the bottom surface of the cavity of the curved section 11. As the grain sample continues to be discharged outward through the curved section 11, it passes through the grain discharge gap 25. Since the grain discharge gap 25 is located below the blades, the grain discharge will hit the blades, causing the impeller 19 to rotate. The airflow generated by the impeller 19 rotating with the blades mixes with the odor in the grain and is collected in the gas collection chamber 24. Since the gas collection chamber 24 is a conical chamber that is larger on the outside and smaller on the inside, and the gas collection chamber 24 is a small space relative to the sensing end of the humidity sensor 21, and since the sensing end of the humidity sensor 21 is located in the gas collection chamber 24, the gas collected in the gas collection chamber 24 will be fed back to the humidity sensor 21 more concentratedly, thus improving the detection accuracy of the humidity sensor 21.

[0039] like Figure 7 , Figure 8As shown, each blade of the impeller 19 is provided with a secondary blade 26 that is bent toward the gas collection chamber 24. When the secondary blade 26 rotates with the blade, it can better discharge the odor in the grain into the gas collection chamber 24 and speed up the sensing speed of the humidity sensor 21.

[0040] like Figure 7 , Figure 8 As shown, a baffle 27 is fixed on the upper half of the discharge bottom of the curved part 11, which is on the same side as the gas collecting chamber 24. The baffle 27 completely covers the gas collecting chamber 24 inside. When the impeller 19 rotates, the airflow generated is mixed with the smell of grain. It can not only be guided into the gas collecting chamber 24 through the auxiliary blades 26, but also be more concentrated and collected in the gas collecting chamber 24 under the cover of the baffle 27. Small exhaust holes are opened on the outside of the gas collecting chamber 24, so that the gas continuously enters the gas collecting chamber 24, is sensed by the humidity sensor 21, and is then discharged outward. The subsequent gas continues to enter the gas collecting chamber 24, is sensed by the humidity sensor 21 again, and is then discharged outward. Thus, when the grain is sampled and discharged at one time, the purpose of continuous humidity detection can be achieved.

[0041] The above orientation references do not represent the specific orientations of each component in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme and to make relative descriptions based on the orientations of the references. In reality, the specific orientations of each component are based on their actual installation and use, as well as the orientation descriptions that are customary to those skilled in the art. This is hereby stated.

[0042] The specific embodiments described above further illustrate the inventive purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, or improvements made by those skilled in the art within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A smart grain warehouse, characterized in that, It includes a main compartment (1), a sampling mechanism (2) installed in the main compartment (1), and a detection mechanism (3) installed on the sampling mechanism (2); The main chamber (1) is provided with a liner (4), which protrudes upward from the bottom of the inner cavity of the main chamber (1). A plurality of annular arrays of feed holes (5) are provided around the liner (4). The plurality of annular arrays of feed holes (5) are equidistantly distributed in the depth direction of the main chamber (1). A through hole (6) communicating with the cavity of the liner (4) is provided on the bottom surface of the main chamber (1). The sampling mechanism (2) includes a sampling tube (7) installed upward through the through hole (6) in the cavity of the liner (4). The top end of the sampling tube (7) is provided with a sampling port (8). When the sampling tube (7) moves up and down, it can change the corresponding position of the sampling port (8) and the feed holes (5) of the annular array. When the sampling tube (7) descends along the liner (4) and causes the sampling port (8) to be lower than a certain layer of feed holes (5), the feed holes (5) of that layer will open. When the sampling mechanism is activated, the grain in the main compartment (1) can pass through the grain inlet hole (5) of the layer and enter the liner (4) in sequence. As the sampling port (8) descends, the grain enters the sampling tube (7) through the sampling port (8). The outer wall of the sampling tube (7) is provided with a scale (28). The sampling mechanism (2) also includes a spiral toothed plate (9) filled in the sampling tube (7). The spiral shape of the spiral toothed plate (9) is evenly distributed along the depth of the cavity of the sampling tube (7). A first depth difference (10) is formed between the top of the helical toothed plate (9) and the sampling port (8). The bottom end of the sampling tube (7) is provided with an inclined downward curved part (11). The bottom end of the helical toothed plate (9) is close to the curved part (11) and forms a second depth difference (17) with the curved part (11). The detection mechanism (3) includes a shaft (18) disposed in the curved part (11) and an impeller (19) mounted on the shaft (18) by a bearing. An exhaust port (20) is provided on the curved part (11). The detection mechanism (3) also includes a humidity sensor (21) disposed in the exhaust port (20). The humidity sensor (21) The main body (1) is electrically connected to the controller (15). The bottom of the main body (1) is provided with a support frame (12). The detection mechanism (3) also includes an electric cylinder (13) fixed on the support frame (12) and a lifting plate (14) sliding on the support frame (12). The actuating rod of the electric cylinder (13) is vertically downward and fixed at one end of the lifting plate (14). The other end of the lifting plate (14) is fixed on the sampling tube (7). The detection mechanism (3) also includes a controller (15) fixed on the lifting plate (14). The controller (15) is provided with a temperature sensor (16) for detecting the ambient temperature. The temperature sensor (16) is electrically connected to the controller (15).

2. The intelligent grain warehouse according to claim 1, characterized in that, The top of the main compartment (1) is provided with a compartment cover (22), which protrudes upward and is equipped with a lifting handle.

3. The intelligent grain warehouse according to claim 2, characterized in that, The main compartment (1) is a conical compartment that gradually widens from bottom to top, so that a conical storage space (23) is formed between the cavity wall of the main compartment (1) and the outer wall of the liner (4).

4. The intelligent grain warehouse according to claim 3, characterized in that, The cross-sectional shape of the curved section (11) is quadrilateral. The outline of the curved section (11) gradually tapers from the bottom end to the bottom end of the sampling tube (7). The exhaust port (20) is located at the bottom outline of the curved section (11). The exhaust port (20) is provided with an outwardly protruding gas collecting chamber (24). The inner end of the gas collecting chamber (24) communicates with the inner cavity of the curved section (11) through the exhaust port (20). The shaft (18) The shaft (18) extends from the exhaust port (20) into the gas collecting chamber (24) and passes through the curved section (11). The other end of the shaft (18) is fixed on the outer wall of the curved section (11). The impeller (19) is fixed on the shaft (18) and located in the cavity of the curved section (11). A grain discharge gap (25) is left between the blades on the impeller (19) and the bottom surface of the cavity of the curved section (11).

5. The intelligent grain warehouse according to claim 4, characterized in that, Each blade of the impeller (19) is provided with a secondary blade (26) that bends toward the gas collection chamber (24). When the secondary blade (26) rotates with the blade, it can provide gas from the inner cavity of the bend (11) into the gas collection chamber (24). The detection probe of the humidity sensor (21) enters the gas collection chamber (24).

6. The intelligent grain warehouse according to claim 5, characterized in that, The gas collecting chamber (24) is a cone-shaped chamber that is larger on the outside and smaller on the inside.

7. The intelligent grain warehouse according to claim 6, characterized in that, The upper half of the discharge bottom of the curved part (11) is covered by a baffle (27) fixed on the same side as the gas collecting chamber (24), and the baffle (27) completely covers the gas collecting chamber (24).

8. The intelligent grain warehouse according to claim 7, characterized in that, The shaft (18) is located at the bottom of the second depth drop (17).

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