Grain storage moisture-proof ventilation equipment

By using a booster device with a drive fan and a speed-increasing fan in the grain storage ventilation equipment, combined with the design of a moving wheel and a ventilation cage, the problem of insufficient airflow intensity is solved, achieving efficient ventilation, preventing grain mold and pests, and improving the flexibility and ease of use of the equipment.

CN223816545UActive Publication Date: 2026-01-23HENAN AILAI GRAIN IND DEVELOPMENT CO LTD
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Patent Information

Application Number
CN202520371860.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-01-23
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

The existing ventilation equipment for grain storage has insufficient power, resulting in insufficient airflow intensity, which cannot penetrate the grain pile, causing localized high temperature and humidity environments, leading to grain mold and pests.

Method used

The system employs a drive fan and a speed-increasing fan connected via the same shaft to form a pressurization device. Airflow is introduced and accelerated through a blower. Combined with the design of moving wheels and a ventilated cage, it ensures a stable supply and even distribution of airflow, preventing insufficient or excessive ventilation in certain areas.

Benefits of technology

It improves ventilation efficiency, quickly removes moisture from grain piles, keeps grain dry, prevents mold growth, and enhances equipment flexibility and ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of grain storage equipment, and discloses grain storage damp-proof ventilation equipment which comprises a bottom plate and an air inlet pipe, the two sides of the bottom plate are each rotationally connected with two moving wheels arranged in a mirror image distribution mode, a rotating shaft is rotationally connected into two bearing frames, one end of the rotating shaft is fixedly connected with a driving fan, and the other end of the rotating shaft is fixedly connected with the air inlet pipe. The end, away from the driving fan, of the rotating shaft is fixedly connected with a speed-increasing fan. According to the moisture-proof ventilation equipment for grain storage, through the arrangement of the driving fan and the speed-increasing fan, the driving fan and the speed-increasing fan which are arranged in the air inlet pipe are connected through the same rotating shaft, a supercharging device is formed, air blown out by an air blower drives the driving fan to rotate, and then the speed-increasing fan is driven to rotate through the rotating shaft; the number of the blades of the speed-increasing fan is larger than that of the blades of the driving fan, so that the acceleration effect on airflow is achieved, the airflow speed is increased, the air inlet amount is increased, and the ventilation efficiency is improved.
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Description

Technical Field

[0001] This application relates to the technical field of grain storage equipment, specifically a grain storage moisture-proof and ventilation device. Background Technology

[0002] A granary is a special building for storing grain. my country is a major agricultural country with a long history of grain production and storage. According to a large number of cultural relics unearthed in China in the past fifty years and historical research, China's primitive agriculture began in the late Paleolithic period and developed in the Neolithic period. Grain storage is a continuation of agricultural cultivation, and storage technology has developed along with the development of agriculture. After entering the Neolithic period, with the development of primitive agriculture, agricultural production reached a certain scale, and there was a surplus of grain, which gradually led to the development from grain processing to storage.

[0003] However, existing grain storage ventilation equipment may have insufficient power to provide enough airflow to penetrate the entire grain pile. Insufficient airflow leads to poor ventilation inside the grain pile, which can easily cause localized high temperature and humidity environments, resulting in problems such as grain mold and pests, seriously affecting grain quality. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a grain storage moisture-proof ventilation device with advantages such as improved ventilation effect. It solves the problem that existing grain storage ventilation devices may have insufficient power from their power source, which cannot provide enough airflow intensity to penetrate the entire grain pile. Insufficient airflow leads to poor ventilation inside the grain pile, which can easily cause local high temperature and high humidity environments, thereby causing problems such as grain mold and pests, seriously affecting grain quality.

[0005] To achieve the above objectives, this application provides the following technical solution: a grain storage moisture-proof and ventilation device, comprising a base plate and an air inlet pipe. Two mirror-distributed movable wheels are rotatably connected to both sides of the base plate. A bracket is fixedly connected to one upper side of the base plate, and a blower is fixedly connected to the upper end of the bracket. A connecting pipe is fixedly connected to the output end of the blower, and a connecting plate is fixedly connected to the end of the connecting pipe away from the blower. Two mirror-distributed bearing brackets are fixedly connected inside the air inlet pipe. A rotating shaft is rotatably connected inside the two bearing brackets. A drive fan is fixedly connected to one end of the rotating shaft, and a speed-increasing fan is fixedly connected to the end of the rotating shaft away from the drive fan.

[0006] Through the above scheme, by setting up a drive fan and a speed-increasing fan, the blower introduces airflow into the air inlet pipe through a connecting pipe, ensuring a stable airflow supply. The drive fan and speed-increasing fan installed in the air inlet pipe are connected by the same rotating shaft, forming a pressurization device. The air blown out by the blower drives the drive fan to rotate, which in turn drives the speed-increasing fan to rotate through the rotating shaft. The speed-increasing fan has more blades than the drive fan, thus accelerating the airflow, increasing the airflow speed, and increasing the air intake volume, thereby improving ventilation efficiency. The efficient airflow acceleration and increased air intake volume help to quickly remove moisture from the grain pile, keep the grain dry, and prevent the grain from becoming moldy and deteriorating due to moisture. Furthermore, the installation of casters allows the air supply device to be easily moved between different grain silos, improving the flexibility and ease of use of the equipment.

[0007] Furthermore, an mounting plate is fixedly connected to one side of the air inlet pipe, and the mounting plate is fixedly connected to the connecting plate by bolts.

[0008] With the above solution, the mounting plate is tightly connected to the connecting plate by bolts, ensuring a stable connection between the air inlet pipe, the blower, and the connecting pipe. This prevents airflow leakage and ensures ventilation efficiency. The bolt connection design makes the connection and separation between the mounting plate and the connecting plate clear and easy, which helps with the quick installation and disassembly of the equipment.

[0009] Furthermore, an air box is fixedly connected to the end of the air inlet pipe away from the mounting plate.

[0010] The above scheme uses a bellows to distribute airflow evenly from the air inlet pipe to different ventilation channels, ensuring that the airflow can cover the grain pile and improve ventilation efficiency.

[0011] Furthermore, air ducts are fixedly connected to both sides of the air box, a first ventilation cage is fixedly connected to one side of each of the two air ducts, and a second ventilation cage is fixedly connected to one side of the air box.

[0012] Through the above scheme, the air box distributes the airflow evenly to the first and second ventilation cages through the air duct, ensuring that the airflow can fully act on the grain pile, avoiding the problem of insufficient or excessive ventilation in some areas, improving ventilation efficiency, and effectively removing moisture.

[0013] Furthermore, both the upper outer walls of the first and second ventilation cages are provided with multiple ventilation holes arranged in a rectangular array.

[0014] The above scheme ensures that the rectangular array design of the ventilation holes can evenly diffuse airflow from the surface of the cage into the grain pile. The evenly distributed airflow helps to avoid problems of insufficient or excessive ventilation in certain areas, thus improving ventilation efficiency.

[0015] Furthermore, a handle is fixedly connected to one side of the upper end of the base plate, and a control box is fixedly connected to one side of the upper end of the base plate.

[0016] With the above solution, the movement of the air supply device can be controlled by pushing the handle, making it convenient and quick to move the air supply device between different grain silos. The control box is located on the upper side of the base plate, making it easily accessible to the operator while standing, thus enabling convenient control of the equipment operation, such as starting, stopping, or adjusting the wind speed.

[0017] Furthermore, both the drive fan and the speed-increasing fan are rotatably mounted inside the air inlet duct.

[0018] The speed-increasing fan, installed directly inside the air inlet duct, increases the airflow speed by driving the fan inside the duct, which in turn drives the speed-increasing fan to accelerate the airflow, thereby improving the efficiency of the entire ventilation system.

[0019] Furthermore, the control box is electrically connected to the hair dryer.

[0020] With the above solution, the control box serves as the control center of the equipment, enabling centralized management of the blower's operation. Operators can start, stop, or adjust parameters such as the blower's speed using buttons, switches, or displays on the control box.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This grain storage moisture-proof ventilation equipment, through the setting of a drive fan and a speed-increasing fan, ensures a stable airflow supply by introducing airflow into the air inlet pipe through a connecting pipe. The drive fan and speed-increasing fan, installed in the air inlet pipe, are connected by the same rotating shaft to form a pressurization device. The air blown out by the blower drives the drive fan to rotate, which in turn drives the speed-increasing fan to rotate through the rotating shaft. The speed-increasing fan has more blades than the drive fan, thereby accelerating the airflow, increasing the airflow speed, and increasing the air intake volume, thus improving ventilation efficiency. The efficient airflow acceleration and increased air intake volume help to quickly remove moisture from the grain pile, keep the grain dry, and prevent the grain from becoming moldy and deteriorating due to moisture. The installation of casters allows the ventilation device to be easily moved between different grain silos, improving the flexibility and ease of use of the equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a schematic diagram of the air supply device structure of this application;

[0025] Figure 3 This is a schematic diagram of the speed-increasing device structure in this application;

[0026] Figure 4 This is a schematic diagram of the ventilation ground cage structure of this application;

[0027] Figure 5 This is a schematic diagram of the installation structure of the structure in this application.

[0028] In the picture:

[0029] 1. Base plate; 2. Casters; 3. Bracket; 4. Blower; 5. Connecting pipe; 6. Connecting plate; 7. Air inlet pipe; 8. Bearing bracket; 9. Shaft; 10. Drive fan; 11. Speed-up fan; 12. Mounting plate; 13. Air box; 14. Air duct; 15. First ventilation cage; 16. Second ventilation cage; 17. Ventilation hole; 18. Handle; 19. Control box. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 2 and Figure 3This embodiment of a grain storage moisture-proof and ventilation device includes a base plate 1 and an air inlet pipe 7. Two mirror-image arranged movable wheels 2 are rotatably connected to both sides of the base plate 1. The movable wheels 2 allow the air supply device to move easily between different grain silos, improving the flexibility and ease of use of the equipment. A bracket 3 is fixedly connected to one side of the upper end of the base plate 1. A blower 4 is fixedly connected to the upper end of the bracket 3. A connecting pipe 5 is fixedly connected to the output end of the blower 4. A connecting plate 6 is fixedly connected to the end of the connecting pipe 5 away from the blower 4. Two mirror-image arranged bearing brackets 8 are fixedly connected inside the air inlet pipe 7. A rotating shaft 9 is rotatably connected inside the two bearing brackets 8. One end of the rotating shaft 9 is fixedly connected to… A drive fan 10 is connected, and a speed-increasing fan 11 is fixedly connected to the end of the rotating shaft 9 away from the drive fan 10. Through the configuration of the drive fan 10 and the speed-increasing fan 11, the blower 4 introduces airflow into the air inlet pipe 7 through the connecting pipe 5, ensuring a stable supply of airflow. The drive fan 10 and the speed-increasing fan 11 installed in the air inlet pipe 7 are connected through the same rotating shaft 9, forming a pressurization device. The air blown out by the blower 4 drives the drive fan 10 to rotate, which in turn drives the speed-increasing fan 11 to rotate through the rotating shaft 9. The speed-increasing fan 11 has more blades than the drive fan 10, thereby accelerating the airflow, increasing the airflow speed, and increasing the air intake volume, thus improving ventilation efficiency.

[0032] Please see Figure 1 , Figure 4 and Figure 5A mounting plate 12 is fixedly connected to one side of the air inlet pipe 7. The mounting plate 12 is fixedly connected to the connecting plate 6 by bolts. The mounting plate 12 and the connecting plate 6 are tightly connected by bolts, ensuring a stable connection between the air inlet pipe 7, the blower 4, and the connecting pipe 5. This prevents airflow leakage and ensures ventilation efficiency. The bolt connection design makes the connection and separation between the mounting plate 12 and the connecting plate 6 clear and easy, facilitating quick installation and disassembly of the equipment. A bellows box 13 is fixedly connected to the end of the air inlet pipe 7 away from the mounting plate 12. The bellows box 13 acts as an airflow distributor, evenly distributing the airflow in the air inlet pipe 7 to different ventilation channels, ensuring that the airflow can cover the grain pile and improve ventilation efficiency. Air ducts 14 are fixedly connected to both sides of the bellows box 13. Each of the two air ducts 14 is fixedly connected to a first ventilation cage 15 on one side, and a second ventilation cage 16 is fixedly connected to one side of the air box 13. The air box 13 distributes the airflow evenly to the first ventilation cage 15 and the second ventilation cage 16 through the air ducts 14, ensuring that the airflow can fully act on the grain pile, avoiding the problem of insufficient or excessive ventilation in some areas, improving ventilation efficiency, and effectively removing moisture. The upper outer walls of the first ventilation cage 15 and the second ventilation cage 16 are provided with multiple ventilation holes 17 arranged in a rectangular array. The rectangular array design of the ventilation holes 17 ensures that the airflow can be evenly diffused from the surface of the cage into the grain pile. The evenly distributed airflow helps to avoid the problem of insufficient or excessive ventilation in some areas, thus improving ventilation efficiency.

[0033] Please see Figure 2 , Figure 3 and Figure 5 A handle 18 is fixedly connected to one side of the upper end of the base plate 1, and a control box 19 is fixedly connected to one side of the upper end of the base plate 1. By pushing the handle 18, the movement of the air supply device can be controlled, making it convenient and quick to move the air supply device between different grain bins. The control box 19 is located on one side of the upper end of the base plate 1, making it easily accessible to the operator when standing, so as to conveniently control the operation of the equipment, such as starting, stopping, or adjusting the wind speed. The drive fan 10 and the speed-increasing fan 11 are both rotatably installed inside the air inlet pipe 7. The function of the speed-increasing fan 11 is to increase the airflow speed. It is directly installed inside the air inlet pipe 7. When the airflow enters the air inlet pipe 7, the rotation of the drive fan 10 drives the speed-increasing fan 11 to rotate, thereby accelerating the airflow and improving the efficiency of the entire ventilation system. The control box 19 is electrically connected to the blower 4. The control box 19 serves as the control center of the equipment and can centrally manage the operation of the blower 4. The operator can start, stop, or adjust parameters such as the wind speed of the blower 4 through the buttons, switches, or display screen on the control box 19.

[0034] In this embodiment, the grain storage moisture-proof ventilation equipment, through the setting of a drive fan 10 and a speed-increasing fan 11, ensures a stable airflow supply by introducing airflow into the air inlet pipe 7 through the connecting pipe 5. The drive fan 10 and the speed-increasing fan 11 set in the air inlet pipe 7 are connected by the same rotating shaft 9 to form a pressurization device. The air blown out by the blower 4 drives the drive fan 10 to rotate, which in turn drives the speed-increasing fan 11 to rotate through the rotating shaft 9. The number of blades of the speed-increasing fan 11 is greater than that of the drive fan 10, thereby accelerating the airflow, increasing the airflow speed, and increasing the air intake, thereby improving the ventilation efficiency. The efficient airflow acceleration and increased air intake help to quickly remove moisture from the grain pile, keep the grain dry, and prevent the grain from becoming moldy and deteriorating due to moisture. Furthermore, the setting of the moving wheels 2 allows the air supply device to be easily moved between different grain silos, improving the flexibility and ease of use of the equipment.

[0035] It should be noted that the drive fan 10 has 10 blades, and the speed-up fan 11 has 24 blades.

[0036] The working principle of the above embodiments is as follows:

[0037] The operator moves the air supply device to the appropriate position by pushing handle 18, connects the connecting plate 6 and mounting plate 12 with bolts, and introduces airflow into the air inlet duct 7 through the connecting pipe 5. After the airflow enters the air inlet duct 7, the fan 10 starts to rotate due to wind power. Since the driving fan 10 and the speed-increasing fan 11 are connected through the same shaft 9, the speed-increasing fan 11 also rotates. The speed-increasing fan 11 has more blades than the driving fan 10, thus accelerating the airflow. The accelerated airflow continues to flow into the air box 13. After entering the air box 13, the accelerated airflow is evenly distributed into the two air ducts 14, which then deliver the airflow to the respective... The ventilation cages 15 and 16 are arranged in a rectangular array with ventilation holes 17 at their upper ends. This ensures that airflow can be evenly diffused from the surface of the cages into the grain pile. The airflow forms convection inside the grain pile, carrying away moisture and achieving the purpose of moisture prevention and ventilation. During equipment operation, the operator can monitor the equipment's operating status in real time through the control box 19. As needed, the operator can adjust parameters such as the wind speed of the blower 4 to optimize the ventilation effect. If ventilation is required for other grain silos, the operator can move the equipment to the vicinity of the next grain silo by pushing the handle 18 and repeat the above workflow.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grain storage moisture-proof ventilation device, comprising a base plate (1) and an air inlet pipe (7), characterized in that: The base plate (1) has two mirror-distributed movable wheels (2) rotatably connected to both sides. A bracket (3) is fixedly connected to one side of the upper end of the base plate (1). A blower (4) is fixedly connected to the upper end of the bracket (3). A connecting pipe (5) is fixedly connected to the output end of the blower (4). A connecting plate (6) is fixedly connected to the end of the connecting pipe (5) away from the blower (4). Two mirror-distributed bearing brackets (8) are fixedly connected inside the air inlet pipe (7). A rotating shaft (9) is rotatably connected inside the two bearing brackets (8). A drive fan (10) is fixedly connected to one end of the rotating shaft (9). A speed-increasing fan (11) is fixedly connected to the end of the rotating shaft (9) away from the drive fan (10).

2. The grain storage moisture-proof and ventilation equipment according to claim 1, characterized in that: An mounting plate (12) is fixedly connected to one side of the air inlet pipe (7), and the mounting plate (12) is fixedly connected to the connecting plate (6) by bolts.

3. The grain storage moisture-proof and ventilation equipment according to claim 1, characterized in that: The air inlet pipe (7) is fixedly connected to a bellows (13) at the end away from the mounting plate (12).

4. The grain storage moisture-proof and ventilation equipment according to claim 3, characterized in that: Both sides of the air box (13) are fixedly connected to air ducts (14), and one side of each of the two air ducts (14) is fixedly connected to a first ventilation cage (15), and one side of the air box (13) is fixedly connected to a second ventilation cage (16).

5. A grain storage moisture-proof and ventilation device according to claim 4, characterized in that: The upper outer walls of the first ventilation cage (15) and the second ventilation cage (16) are both provided with a plurality of ventilation holes (17) arranged in a rectangular array.

6. The grain storage moisture-proof and ventilation equipment according to claim 1, characterized in that: A handle (18) is fixedly connected to one side of the upper end of the base plate (1), and a control box (19) is fixedly connected to one side of the upper end of the base plate (1).

7. A grain storage moisture-proof and ventilation device according to claim 1, characterized in that: Both the drive fan (10) and the speed-increasing fan (11) are rotatably mounted inside the air inlet pipe (7).

8. A grain storage moisture-proof and ventilation device according to claim 6, characterized in that: The control box (19) is electrically connected to the blower (4).