A grain bin internal loop fumigation apparatus

Abstract

The utility model relates to the technical field of grain storage discloses a kind of inner ring flow fumigation equipment for granary, including base, the top of base is fixedly connected with installation platform, the top of installation platform is fixedly connected with driving motor, the top of base is fixedly connected with shell, the inside rotation of shell is connected with fan, the output of driving motor is fixedly connected with driving shaft, the side of driving shaft away from driving motor is fixedly connected in the inside of fan, the side of shell away from driving motor is fixedly connected with air inlet, the top of shell is fixedly connected with air outlet.The dustproof mechanism includes dustproof filter plate, and the dustproof filter plate is slidably connected inside the air inlet.In the utility model, the dustproof filter plate inside the air inlet can effectively prevent solid particles from being drawn into the shell, which affects the operation of the fan, ensures the operation efficiency of the fan, improves the fumigation effect of the grain and ensures the safety of the working environment.

Description

Technical Field

[0001] This utility model relates to the field of grain storage technology, and in particular to an internal circulation fumigation device for grain warehouses. Background Technology

[0002] Internal circulation fumigation equipment is commonly used for fumigation treatment in enclosed environments, typically in food storage, agricultural product processing, and warehouse disinfection. Compared to traditional external circulation fumigation equipment, internal circulation fumigation equipment is designed to optimize airflow circulation and uniform gas distribution, thereby improving fumigation effectiveness and efficiency.

[0003] Internal circulation fumigation equipment for grain silos is specifically designed to prevent contamination by pests and pathogens during grain storage. It is typically used in large-scale grain storage facilities to ensure the grain maintains good quality during storage. Through an effective airflow circulation system, the internal circulation fumigation equipment evenly distributes fumigation gases (such as phosphine and sulfur dioxide) throughout the grain silo, achieving rapid and efficient pest control and disinfection.

[0004] In traditional internal circulation fumigation equipment, the air inlet typically lacks an effective dustproof mechanism. During operation, dust, solid particles, and other impurities are drawn into the equipment along with the airflow. This dust and particulate matter adversely affect fan operation, leading to decreased efficiency and frequent malfunctions, system blockage, or damage to fan blades. Dust accumulation can also impair normal operation, increase maintenance costs, reduce gas distribution uniformity, and negatively impact the fumigation quality of crops or grains, ultimately affecting the effectiveness of fumigation operations and environmental safety. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an internal circulation fumigation device for grain warehouses, which aims to improve the problem that the fumigation effect of grain is reduced and the safety of the working environment is endangered because the air inlet of the internal circulation fumigation device in the traditional technology is usually not equipped with an effective dust prevention mechanism.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an internal circulation fumigation device for grain storage, comprising a base, an installation platform fixedly connected to the top of the base, a drive motor fixedly connected to the top of the installation platform, a housing fixedly connected to the top of the base, a fan rotatably connected inside the housing, a drive shaft fixedly connected to the output end of the drive motor, a drive shaft fixedly connected to the inside of the fan on the side of the drive shaft away from the drive motor, an air inlet fixedly connected to the side of the housing away from the drive motor, an air outlet fixedly connected to the top of the housing, a dustproof mechanism provided inside the air inlet to prevent dust from entering the inside of the housing and affecting the operation of the fan, an installer fixedly connected to the top of the air outlet, a connector slidably connected to the top of the installer, a ventilation pipe fixedly connected to the top of the connector, a slot provided on the outside of the connector, and a locking mechanism provided inside the installer for stable installation and removal of the ventilation pipe;

[0007] The dustproof mechanism includes a dustproof filter plate, which is slidably connected inside the air inlet. Two mounting shells are fixedly connected to the outside of the air inlet. A return spring is fixedly connected inside each of the two mounting shells. A limit block is fixedly connected to the opposite side of each of the two return springs. A pin is fixedly connected inside each of the two limit blocks. The opposite side of each pin passes through the outside of the air inlet and engages with the dustproof filter plate.

[0008] As a further description of the above technical solution:

[0009] A fixing box is fixedly connected to the top of the mounting shell, a sliding plate is slidably connected inside the fixing box, a baffle plate is fixedly connected to the bottom of the sliding plate, and the bottom of the baffle plate abuts against the top of the limiting block.

[0010] As a further description of the above technical solution:

[0011] The limiting block is slidably connected inside the mounting housing, and the pin passes through both ends of the mounting housing.

[0012] As a further description of the above technical solution:

[0013] A handle is fixedly connected to the side of the pin away from the limiting block.

[0014] As a further description of the above technical solution:

[0015] The engaging mechanism includes a slide rod slidably connected inside the mounter. A slider is fixedly connected to the side of the slide rod near the mounter, and a compression spring is fixedly connected to the side of the slider away from the slide rod. Connecting rods are rotatably connected to both sides of the slider. U-shaped brackets are rotatably connected to the sides of the two connecting rods away from the slider. Locking rods are fixedly connected to the sides of the two U-shaped brackets away from the connecting rods. Clamps are fixedly connected to the opposite sides of the two locking rods, and both clamps engage with the locking groove.

[0016] As a further description of the above technical solution:

[0017] The slider is slidably connected inside the mounter, and both connecting rods are slidably connected inside the mounter.

[0018] As a further description of the above technical solution:

[0019] The compression spring is fixedly connected inside the mounter on the side away from the slider.

[0020] As a further description of the above technical solution:

[0021] A push handle is fixedly connected to the side of the slide bar away from the slider.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the phosphine production device is connected to the air inlet of the outer casing. Starting the drive motor rotates the fan via the drive shaft, drawing phosphine gas through the ventilation pipe into the grain silo for fumigation and pest control. The dust filter plate inside the air inlet effectively prevents solid particles contained in the phosphine from being drawn into the outer casing and affecting the fan's operation. When the dust filter plate needs to be removed for cleaning, the handle is pulled outwards to push the pin, causing the limit block to compress the reset spring and retract into the mounting shell. The barrier plate automatically falls under gravity, blocking the limit block and preventing it from moving. At this point, the dust filter plate can be removed. This achieves the effect of preventing dust and solid particles from entering the fan casing through the dustproof mechanism, ensuring the fan's operating efficiency, improving the fumigation effect of the grain, and ensuring a safe working environment.

[0024] 2. In this utility model, when connecting the ventilation pipe, the push handle pushes the slide rod, causing the slider to compress the spring and move into the installer. When the slider moves, the connecting rods on both sides drive the U-shaped frame to separate the two clamps through the locking rod, releasing the locking state with the slot. The ventilation pipe and connector can then be slid into the interior of the installer. Releasing the push handle causes the spring to rebound, pushing the slider outward so that the two clamps re-lock with the slot. This achieves the effect of stable installation of the ventilation pipe through the locking mechanism, avoiding pipe detachment due to equipment vibration, improving the fumigation efficiency of grain, and enhancing the practicality of the device. Attached Figure Description

[0025] Figure 1 This is a perspective view of an internal circulation fumigation device for grain storage proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the fan of an internal circulation fumigation device for grain storage proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of a dustproof filter plate for an internal circulation fumigation device for grain storage proposed in this utility model;

[0028] Figure 4 This is a cross-sectional view of the installation shell of an internal circulation fumigation device for grain storage proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the ventilation pipe of an internal circulation fumigation device for grain storage proposed in this utility model;

[0030] Figure 6 This is a schematic diagram of the locking mechanism of an internal circulation fumigation device for grain storage proposed in this utility model.

[0031] Legend:

[0032] 1. Base; 2. Mounting platform; 3. Drive motor; 4. Housing; 5. Drive shaft; 6. Fan; 7. Air inlet; 8. Dust filter plate; 9. Mounting shell; 10. Return spring; 11. Limit block; 12. Pin rod; 13. Fixing box; 14. Slide plate; 15. Barrier plate; 16. Handle; 17. Air outlet; 18. Installer; 19. Connector; 20. Ventilation duct; 21. Slot; 22. Slide rod; 23. Slider; 24. Compression spring; 25. Connecting rod; 26. U-shaped frame; 27. Locking rod; 28. Clamp; 29. ​​Push handle. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-4 This utility model provides an embodiment of an internal circulation fumigation device for grain storage, comprising a base 1, which supports the upper structure; a mounting platform 2 is fixedly connected to the top of the base 1, which connects to a drive motor 3; the drive motor 3 provides power to rotate a drive shaft 5; a housing 4 is fixedly connected to the top of the base 1, which connects to a fan 6; the fan 6 is rotatably connected inside the housing 4, which draws in gas; the output end of the drive motor 3 is fixedly connected to the drive shaft 5; the side of the drive shaft 5 away from the drive motor 3 is fixedly connected inside the fan 6; and the housing 4 is located away from the drive motor. An air inlet 7 is fixedly connected to one side of the casing 3, and an air outlet 17 is fixedly connected to the top of the casing 4. The air inlet 7 is equipped with a dustproof mechanism to prevent dust from entering the casing 4 and affecting the operation of the fan 6. An installer 18 is fixedly connected to the top of the air outlet 17. The installer 18 is used to install the connector 19. The connector 19 is slidably connected to the top of the installer 18. The connector 19 is used to connect the ventilation pipe 20. The ventilation pipe 20 is fixedly connected to the top of the connector 19. The ventilation pipe 20 is used to ventilate the inside of the grain silo. A slot 21 is opened on the outside of the connector 19. A locking mechanism is set inside the installer 18. The locking mechanism is used to stably install and remove the ventilation pipe 20.

[0035] The dustproof mechanism includes a dustproof filter plate 8, which prevents dust and solid particles from entering the interior of the outer casing 4. The dustproof filter plate 8 is slidably connected to the interior of the air inlet 7. Two mounting shells 9 are fixedly connected to the exterior of the air inlet 7. The mounting shells 9 are used to fix the internal structure. A return spring 10 is fixedly connected inside each of the two mounting shells 9. The return spring 10 provides elastic force to push the limit block 11. Limit blocks 11 are fixedly connected to the opposite sides of the two return springs 10. Limit blocks 11 are used to prevent the return springs 10 from falling off. Pins 12 are fixedly connected inside each of the two limit blocks 11. Pins 12 are used to engage and fix the mechanism. The opposite sides of the two pins 12 penetrate the exterior of the air inlet 7 and engage with the dustproof filter plate 8. The top of the mounting shell 9 is fixedly connected to a fixing box 13, which serves to fix the internal structure. Inside the fixing box 13, a sliding plate 14 is slidably connected, which serves to connect to the baffle plate 15. The bottom of the sliding plate 14 is fixedly connected to the baffle plate 15, which serves to prevent the limit block 11 from moving. The bottom of the baffle plate 15 abuts against the top of the limit block 11. The limit block 11 is slidably connected inside the mounting shell 9. A pin 12 passes through both ends of the mounting shell 9. A handle 16 is fixedly connected to the side of the pin 12 away from the limit block 11.

[0036] Specifically, by setting up a dust filter plate 8, dust and solid particles are prevented from entering the interior of the outer casing 4 and affecting the operation of the fan 6, thereby improving the fumigation effect of the grain.

[0037] Reference Figure 1 and Figures 5-6 The engaging mechanism includes a slide rod 22, which connects to a slider 23. The slide rod 22 is slidably connected inside the mounter 18. A slider 23 is fixedly connected to the side of the slide rod 22 closest to the mounter 18. The slider 23 connects to a compression spring 24. A compression spring 24 is fixedly connected to the side of the slider 23 furthest from the slide rod 22. The compression spring 24 provides elastic force to push the slider 23. Connecting rods 25 are rotatably connected to both sides of the slider 23. Connecting rods 25 connect to U-shaped frames 26. U-shaped frames 26 are rotatably connected to the sides of the two connecting rods 25 furthest from the slider 23. U-shaped frames 26 connect to locking rods 27. Locking rods 27 are fixedly connected to the sides of the two U-shaped frames 26 furthest from the connecting rods 25. Locking rods 27 connect to clamps 28. Clamps 28 are fixedly connected to the opposite sides of the two locking rods 27. Clamps 28 engage with the locking grooves 21. The slider 23 is slidably connected inside the mounter 18, and both connecting rods 25 are slidably connected inside the mounter 18. The compression spring 24 is fixedly connected inside the mounter 18 on the side away from the slider 23, and the push handle 29 is fixedly connected to the side of the slide rod 22 away from the slider 23.

[0038] Specifically, the ventilation pipe 20 is connected by changing the engagement state of the clamp 28 and the slot 21.

[0039] Working principle: The phosphine production device is connected to the air inlet 7 of the outer shell 4. The drive motor 3 is started, and the fan 6 is rotated through the drive shaft 5 to draw phosphine gas into the grain silo through the ventilation pipe 20 for grain fumigation and pest control. The dust filter plate 8 inside the air inlet 7 can effectively prevent solid particles contained in phosphine from being drawn into the outer shell 4 and affecting the operation of the fan 6. When the dust filter plate 8 needs to be removed and cleaned, the handle 16 is used to pull the pin 12 outward, which causes the limit block 11 to compress the reset spring 10 and retract into the mounting shell 9. The baffle plate 15 is automatically lowered by gravity and blocks the limit block 11, preventing it from moving. At this time, the dust filter plate 8 can be removed.

[0040] When connecting the ventilation pipe 20, push the slide bar 22 with the push handle 29 to cause the slider 23 to compress the spring 24 and move into the installer 18. When the slider 23 moves, the connecting rods 25 on both sides drive the U-shaped frame 26 to separate the two clamps 28 relative to each other through the locking rod 27, releasing the locking state with the slot 21. The ventilation pipe 20 and connector 19 can then be slid into the installer 18. When the push handle 29 is released, the spring 24 pushes the slider 23 to move outward, so that the two clamps 28 can re-lock and fix with the slot 21.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An internal circulation fumigation device for grain storage, comprising a base (1), characterized in that: A mounting platform (2) is fixedly connected to the top of the base (1), and a drive motor (3) is fixedly connected to the top of the mounting platform (2). A housing (4) is fixedly connected to the top of the base (1), and a fan (6) is rotatably connected inside the housing (4). A drive shaft (5) is fixedly connected to the output end of the drive motor (3), and the side of the drive shaft (5) away from the drive motor (3) is fixedly connected to the inside of the fan (6). An air inlet (7) is fixedly connected to the side of the housing (4) away from the drive motor (3), and an air outlet is fixedly connected to the top of the housing (4). The air inlet (7) is equipped with a dustproof mechanism to prevent dust from entering the interior of the outer casing (4) and affecting the operation of the fan (6). The top of the air outlet (17) is fixedly connected to an installer (18), and the top of the installer (18) is slidably connected to a connector (19). The top of the connector (19) is fixedly connected to a ventilation pipe (20). The connector (19) has a slot (21) on its exterior. The installer (18) is equipped with a locking mechanism to stably install and remove the ventilation pipe (20). The dustproof mechanism includes a dustproof filter plate (8), which is slidably connected inside the air inlet (7). Two mounting shells (9) are fixedly connected to the outside of the air inlet (7). A return spring (10) is fixedly connected inside each of the two mounting shells (9). A limit block (11) is fixedly connected to the opposite side of each of the two return springs (10). A pin (12) is fixedly connected inside each of the two limit blocks (11). The opposite sides of each pin (12) penetrate the outside of the air inlet (7) and engage with the dustproof filter plate (8).

2. The internal circulation fumigation equipment for grain storage according to claim 1, characterized in that: The top of the mounting shell (9) is fixedly connected to a fixing box (13), and a sliding plate (14) is slidably connected inside the fixing box (13). A barrier plate (15) is fixedly connected to the bottom of the sliding plate (14), and the bottom of the barrier plate (15) abuts against the top of the limiting block (11).

3. The internal circulation fumigation equipment for grain storage according to claim 1, characterized in that: The limiting block (11) is slidably connected inside the mounting shell (9), and the pin (12) passes through both ends of the mounting shell (9).

4. The internal circulation fumigation equipment for grain storage according to claim 1, characterized in that: A handle (16) is fixedly connected to the side of the pin (12) away from the limiting block (11).

5. The internal circulation fumigation equipment for grain storage according to claim 1, characterized in that: The engaging mechanism includes a slide rod (22), which is slidably connected inside the mounter (18). A slider (23) is fixedly connected to the side of the slide rod (22) near the mounter (18). A compression spring (24) is fixedly connected to the side of the slider (23) away from the slide rod (22). Connecting rods (25) are rotatably connected to both sides of the slider (23). A U-shaped frame (26) is rotatably connected to the side of the two connecting rods (25) away from the slider (23). A locking rod (27) is fixedly connected to the side of the two U-shaped frames (26) away from the connecting rods (25). A clamp (28) is fixedly connected to the opposite side of the two clamps (27). Both clamps (28) engage with the slot (21).

6. The internal circulation fumigation equipment for grain storage according to claim 5, characterized in that: The slider (23) is slidably connected inside the mounter (18), and both connecting rods (25) are slidably connected inside the mounter (18).

7. The internal circulation fumigation equipment for grain storage according to claim 5, characterized in that: The compression spring (24) is fixedly connected to the inside of the mounter (18) on the side away from the slider (23).

8. The internal circulation fumigation equipment for grain storage according to claim 5, characterized in that: A push handle (29) is fixedly connected to the side of the slide bar (22) away from the slider (23).

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