A fertilizer granule delivery apparatus

By designing an adjustable feed hole lever assembly and an airflow vibration device, the problems of small coverage width and high energy consumption of existing fertilizer dispensing devices have been solved, achieving the effect of large-area uniform dispensing and reduced energy consumption.

CN224482155UActive Publication Date: 2026-07-14SHANDONG QINGSHANLUSHUI AGRI & FORESTRY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG QINGSHANLUSHUI AGRI & FORESTRY TECH CO LTD
Filing Date
2025-06-18
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing fertilizer granule dispensing devices have small discharge hole coverage and high energy consumption, requiring a power supply.

Method used

Design a fertilizer granule dispensing device with an adjustable number of dispensing holes. The opening and closing of the dispensing holes are controlled by a lever assembly, and airflow and mechanical vibration are used to assist in the uniform dispensing of fertilizer granules, thereby reducing energy consumption.

Benefits of technology

It enables large-scale fertilizer application, reduces energy consumption, eliminates the need for electricity supply, and improves fertilizer utilization efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to fertilizing device's technical field especially relates to a kind of fertilizer granule feeding equipment, it can set the number of discharge hole according to need, covering width is larger, it is not required power supply when feeding, energy consumption reduces, including fertilizer box, box cover and connecting component, the inside of fertilizer box is provided with fertilizer chamber, the upper end surface of fertilizer box is provided with the feeding opening being communicated with fertilizer chamber, box cover is hinged on feeding opening, connecting component is installed on fertilizer box, it further includes feeding chute, shaft, arc baffle and lever assembly, the bottom of fertilizer box is provided with the feeding chute that protrudes downward, multiple discharge holes are provided on feeding chute, the both ends of shaft are rotatably connected with the left and right side walls of fertilizer box, arc baffle is rotatably installed in feeding chute, arc baffle shields multiple discharge holes of feeding chute, arc baffle is connected with shaft, the upper end of lever assembly is connected with the end of shaft, lever assembly is located outside fertilizer box, the lower end of lever assembly extends below fertilizer box.
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Description

Technical Field

[0001] This utility model relates to the technical field of fertilizer application devices, and in particular to a fertilizer granule dispensing device. Background Technology

[0002] In agricultural planting, fertilizers need to be applied to crops. Currently, most fertilizers are in granular form. Chinese utility model patent CN220402363U discloses a precision fertilizer dispensing device. This device includes a dispensing assembly comprising a hopper, an inlet, an outlet pipe, a housing, a motor, a first bevel gear, a second bevel gear, a rotating shaft, and conveying blades. The inlet is connected to the top of the hopper, and two outlet pipes are symmetrically connected to the bottom of the hopper. The housing is fixedly connected to the outer wall of the outlet pipe, and the motor is mounted on the upper surface of the housing. This invention uses a speed sensor to detect the rotation speed of the drive shaft and a controller to adjust the motor speed. This allows for adjustment of the fertilizer dispensing quantity based on the actual travel speed of the fertilizer dispensing device, ensuring a more uniform and precise overall fertilizer dispensing. An electric telescopic rod adjusts the height of the hopper, thereby changing the outlet height of the outlet pipe, bringing it closer to the crop roots, reducing fertilizer waste, and improving fertilizer utilization.

[0003] However, the above-mentioned dispensing device only has a dispensing hole for granular fertilizer at the outer end of the discharge pipe, the coverage width of the fertilizer granules is small, and the motor needs to be powered when dispensing fertilizer granules, resulting in high energy consumption. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a fertilizer pellet dispensing device that can set the number of feeding holes as needed, has a wider coverage width, does not require power supply during dispensing, and reduces energy consumption.

[0005] This utility model discloses a fertilizer granule dispensing device, comprising a fertilizer box, a box cover, and connecting components. The fertilizer box contains a fertilizer chamber, and the upper surface of the fertilizer box has a feeding port communicating with the fertilizer chamber. The box cover is hinged to the feeding port, and the connecting components are mounted on the fertilizer box. It also includes a feeding trough, a shaft, an arc-shaped baffle, and a lever assembly. The bottom of the fertilizer box has a downward-protruding feeding trough with multiple feeding holes. Both ends of the shaft are rotatably connected to the left and right side walls of the fertilizer box. The arc-shaped baffle is rotatably mounted in the feeding trough, covering the multiple feeding holes. The arc-shaped baffle is connected to the shaft. The upper end of the lever assembly is connected to the end of the shaft, and the lever assembly is located outside the fertilizer box, with its lower end extending below the fertilizer box. The fertilizer box is mounted on a carrier via the connecting components, particularly suitable for mounting on drones, allowing the lever assembly to freely downwards. At this time, the arc-shaped baffle controls the multiple feeding holes of the feeding trough. The fertilizer hopper is sealed off, and fertilizer granules are loaded into the fertilizer chamber. At this point, the fertilizer will not be discharged through the multiple discharge holes of the feeding trough. The carrier moves the fertilizer hopper to the field requiring fertilization, adjusts the height of the fertilizer hopper so that the lower end of the lever assembly contacts the ground, and tilts the lever assembly. The lever assembly drives the shaft and the arc-shaped baffle to rotate at a certain angle, causing the arc-shaped baffle to open the multiple discharge holes of the feeding trough, allowing the fertilizer granules to be discharged onto the ground through these holes. The carrier moves the fertilizer hopper, ensuring the fertilizer is evenly spread on the ground. After fertilization, the fertilizer hopper is raised, the lower end of the lever assembly detaches from the ground, the lever assembly returns to a vertical position, and drives the shaft and the arc-shaped baffle to rotate, causing the arc-shaped baffle to again seal the multiple discharge holes of the feeding trough, shifting the edge. Compared to existing technologies, this method allows for setting the number of discharge holes as needed, provides a wider coverage area, requires no power supply during dispensing, and reduces energy consumption.

[0006] Preferably, it also includes a roller, which is rotatably mounted on the lower end of the lever assembly; by installing the roller, the friction between the lower end of the lever assembly and the ground is reduced.

[0007] Preferably, the lever assembly includes an upper lever, a lower lever, and a retaining seat. The upper end of the upper lever is connected to the end of the shaft, and the upper end of the lower lever is hinged to the lower end of the upper lever. The lower lever can be flipped upwards and outwards from the end of the shaft. The retaining seat is installed on the fertilizer box and is used to hold the lower lever. Before fertilizer granules are added, the lower lever is flipped upwards by the hinge between the upper and lower levers and secured in the retaining seat, reducing the space occupied and facilitating movement. When adding fertilizer, the lower lever is removed from the retaining seat and lowered to a vertical position by the hinge between the upper and lower levers. At this time, the lower end of the lower lever is in contact with the ground. When the fertilizer box moves, it can cause the lower lever and the upper lever to tilt, causing the shaft and the arc-shaped baffle to rotate and open the multiple feeding holes of the feeding trough.

[0008] Preferably, it also includes an angle sensor, which is installed on the fertilizer box and is used to detect the rotation angle of the shaft; by detecting the rotation angle of the shaft, the rotation angle of the arc baffle is obtained, and then the multiple discharge holes of the feeding trough opened by the arc baffle are opened, so as to adjust the amount of fertilizer granules fed.

[0009] Preferably, it also includes a vent, which is installed on the cover of the fertilizer box. The vent has an air inlet facing the direction of movement of the fertilizer box and an air outlet connected to the fertilizer chamber of the fertilizer box. When the fertilizer box moves forward, outside air is introduced into the fertilizer chamber of the fertilizer box through the air inlet and air outlet of the vent, replenishing the air and making the fertilizer granules dispensing more smoothly. At the same time, the vent can also serve as a handle for the cover.

[0010] Preferably, the fertilizer also includes an air-concentrating hood and multiple spring plates. The air-concentrating hood is installed on the fertilizer box and has two air inlets facing the forward direction of the fertilizer box. The air-concentrating hood also has two air outlets facing the multiple discharge holes of the feeding trough. The air inlet is larger than the air outlet. Multiple spring plates are installed on the air-concentrating hood and extend below the multiple discharge holes of the feeding trough. When the fertilizer box moves forward, air enters the air-concentrating hood through the air inlet and exits through the air outlet. Because the air inlet is larger than the air outlet, the airflow speed output through the air outlet is increased. The higher-speed airflow disperses the fertilizer particles output through the multiple discharge holes of the feeding trough. At the same time, the fertilizer falls onto the multiple spring plates and is dispersed again, resulting in a larger fertilizer coverage area and avoiding seedling burn caused by concentrated fertilizer particles.

[0011] Preferably, it also includes a rotating shaft, an impeller, and an elastic hammer. The rotating shaft is rotatably installed in the air inlet two of the wind-gathering hood via a bracket. The impeller is installed at the front end of the rotating shaft, and the elastic hammer is installed at the rear end of the rotating shaft. The elastic hammer strikes the wind-gathering hood and the fertilizer box. When the fertilizer box moves forward, the airflow passes through the impeller, causing the impeller to drive the rotating shaft to rotate. The rotating shaft drives the elastic hammer to rotate. When the elastic hammer rotates, it intermittently strikes the outer wall of the wind-gathering hood and the fertilizer box, vibrating the fertilizer granules in the fertilizer box and ensuring smooth dispensing of the fertilizer granules.

[0012] Compared with the prior art, the advantages of this utility model are: the number of feeding holes can be set as needed, the coverage width is larger, no power supply is required during feeding, and energy consumption is reduced. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a side sectional view of the present invention;

[0015] Figure 3 This is a schematic diagram of the isometric structure of this utility model;

[0016] Figure 4 It is a structural diagram of the shaft, arc baffle, lever assembly and roller, etc.

[0017] Figure 5 It is a structural diagram of components such as the wind-gathering shroud, spring plates, rotating shaft, impeller, and elastic hammer.

[0018] The following components are labeled in the attached diagram: 1. Fertilizer bin; 2. Bin cover; 3. Connecting component; 4. Feeding trough; 5. Shaft; 6. Arc-shaped baffle; 7. Lever assembly; 8. Roller; 9. Upper rod; 10. Lower rod; 11. Card seat; 12. Angle sensor; 13. Air vent; 14. Wind concentrator; 15. Spring plate; 16. Rotating shaft; 17. Fan impeller; 18. Elastic hammer. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0020] like Figures 1 to 4 As shown, a fertilizer granule dispensing device includes a fertilizer box 1, a box cover 2, and a connecting component 3. The fertilizer box 1 has a fertilizer chamber inside, and a feeding port communicating with the fertilizer chamber is provided on the upper surface of the fertilizer box 1. The box cover 2 is hinged to the feeding port, and the connecting component 3 is installed on the fertilizer box 1. It also includes a feeding trough 4, a shaft 5, an arc-shaped baffle 6, and a lever assembly 7. The bottom of the fertilizer box 1 has a downwardly protruding feeding trough 4 with multiple discharge holes. The two ends of the shaft 5 are rotatably connected to the left and right side walls of the fertilizer box 1. The arc-shaped baffle 6 is rotatably installed in the feeding trough 4, covering the multiple discharge holes of the feeding trough 4. The arc-shaped baffle 6 is connected to the shaft 5. The upper end of the lever assembly 7 is connected to the end of the shaft 5. The lever assembly 7 is located outside the fertilizer box 1. The lower end extends below the fertilizer box 1; it also includes a roller 8, which is rotatably mounted on the lower end of the lever assembly 7; the lever assembly 7 includes an upper rod 9, a lower rod 10, and a retainer 11. The upper end of the upper rod 9 is connected to the end of the shaft 5, and the upper end of the lower rod 10 is hinged to the lower end of the upper rod 9. The lower rod 10 can be flipped upwards to the outside of the end of the shaft 5. The retainer 11 is mounted on the fertilizer box 1 and is used to retain the lower rod 10; it also includes an angle sensor 12, which is mounted on the fertilizer box 1 and is used to detect the rotation angle of the shaft 5; it also includes a vent 13, which is mounted on the box cover 2. The vent 13 has an air inlet facing the forward direction of the fertilizer box 1 and an air outlet communicating with the fertilizer chamber of the fertilizer box 1.

[0021] The fertilizer box 1 is mounted on a carrier via connecting component 3, making it particularly suitable for mounting on drones. Before fertilizer granules are dispensed, the upper rod 9 is allowed to move freely downwards. At this time, the arc-shaped baffle 6 blocks the multiple discharge holes of the feeding trough 4. The vent 13 can also serve as a handle for the box cover 2, facilitating its opening and closing. Fertilizer granules are loaded into the fertilizer chamber of the fertilizer box 1. The fertilizer will not be discharged through the multiple discharge holes of the feeding trough 4. The lower rod 10 is moved downwards via a hinge between the upper rod 9 and the lower rod 10. The upper rod 10 is flipped up and secured to the mounting base 11, reducing its footprint and facilitating movement. When fertilizer is applied, the lower rod 10 is removed from the mounting base 11 via the hinge between the upper rod 9 and the lower rod 10 and lowered to a vertical position. The carrier carries the fertilizer box 1 to the field requiring fertilization. The height of the fertilizer box 1 is adjusted, at which point the lower end of the lower rod 10 contacts the ground. As the fertilizer box 1 moves, it tilts the lower rod 10 and the upper rod 9, causing the shaft 5 and the arc-shaped baffle 6 to rotate. The multiple discharge holes of the feeding trough 4 are opened by the motor. The angle sensor 12 detects the rotation angle of the shaft 5 and obtains the rotation angle of the arc baffle 6. This allows the arc baffle 6 to open the multiple discharge holes of the feeding trough 4, adjusting the amount of fertilizer granules to be fed onto the ground through the discharge holes. The carrier moves the fertilizer box 1. As the fertilizer box 1 moves forward, outside air is introduced into the fertilizer chamber of the fertilizer box 1 through the air inlet and outlet of the air window 13, replenishing the air and making the fertilizer granules feed more smoothly and evenly spread on the ground. After fertilization, the fertilizer box 1 is raised, the lower end of the lower rod 10 is separated from the ground, the lever assembly 7 returns to the vertical state, and drives the shaft 5 and the arc baffle 6 to rotate. This causes the arc baffle 6 to cover the multiple discharge holes of the feeding trough 4 again, shifting the edge. Compared with the existing technology, the number of discharge holes can be set as needed, the coverage width is larger, and no power supply is required during feeding, reducing energy consumption. Example 2

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, based on Embodiment 1, it also includes a concentrator shroud 14 and multiple spring plates 15. The concentrator shroud 14 is installed on the fertilizer box 1. The concentrator shroud 14 is provided with an air inlet 2 facing the forward direction of the fertilizer box 1. The concentrator shroud 14 is provided with an air outlet 2 facing multiple discharge holes of the feeding trough 4. The air inlet 2 is larger than the air outlet 2. Multiple spring plates 15 are installed on the concentrator shroud 14 and extend into the multiple discharge holes of the feeding trough 4 respectively. It also includes a rotating shaft 16, a fan impeller 17 and an elastic hammer 18. The rotating shaft 16 is rotatably installed in the air inlet 2 of the concentrator shroud 14 through a bracket. The fan impeller 17 is installed at the front end of the rotating shaft 16 and the elastic hammer 18 is installed at the rear end of the rotating shaft 16. The elastic hammer 18 strikes the concentrator shroud 14 and the fertilizer box 1.

[0023] When fertilizer box 1 moves forward, airflow passes over impeller 17, causing impeller 17 to drive shaft 16 to rotate. Shaft 16 drives elastic hammer 18 to rotate. When elastic hammer 18 rotates, it intermittently strikes wind-gathering hood 14 and the outer wall of fertilizer box 1, vibrating the fertilizer granules in fertilizer box 1 and ensuring smooth dispensing of fertilizer granules. When fertilizer box 1 moves forward, air enters wind-gathering hood 14 through air inlet 2 and is output through air outlet 2. Since air inlet 2 is larger than air outlet 2, the airflow speed output through air outlet 2 is increased. The higher-speed airflow blows away the fertilizer granules output through multiple feeding holes of feeding trough 4. At the same time, the fertilizer falls onto multiple spring plates 15 and is dispersed again, making the fertilizer coverage area larger and avoiding seedling burn caused by concentrated fertilizer granules.

[0024] like Figures 1 to 5 As shown, this utility model discloses a fertilizer granule dispensing device. During operation, the fertilizer box 1 is first mounted on a carrier via a connecting component 3, allowing the lever assembly 7 to freely descend. At this time, the arc-shaped baffle 6 blocks the multiple discharge holes of the feeding trough 4. Fertilizer granules are loaded into the fertilizer chamber of the fertilizer box 1, preventing fertilizer from being discharged through the multiple discharge holes of the feeding trough 4. Then, the carrier carries the fertilizer box 1 to the field requiring fertilization. The height of the fertilizer box 1 is adjusted so that the lower end of the lever assembly 7 contacts the ground, and the lever assembly 7 is tilted. The lever assembly 7 drives the shaft 5 and the arc-shaped baffle 6 to rotate at a certain angle, causing the arc-shaped baffle 6 to open the multiple discharge holes of the feeding trough 4, allowing fertilizer granules to be dispensed onto the ground through the discharge holes. Then, the carrier carries the fertilizer box 1 forward, and airflow passes over the impeller 17, causing the impeller 17 to... 7 drives the rotating shaft 16 to rotate, and the rotating shaft 16 drives the elastic hammer head 18 to rotate. When the elastic hammer head 18 rotates, it intermittently strikes the wind-gathering hood 14 and the outer wall of the fertilizer box 1, vibrating the fertilizer granules in the fertilizer box 1, so that the fertilizer granules are smoothly fed. Air enters the wind-gathering hood 14 through the air inlet 2 and is output through the air outlet 2. Since the air inlet 2 is larger than the air outlet 2, the airflow speed output through the air outlet 2 is increased. The higher speed airflow blows away the fertilizer granules output through the multiple feeding holes of the feeding trough 4. At the same time, the fertilizer falls onto multiple spring plates 15 and is dispersed again, so that the fertilizer coverage area is larger and the seedling burn caused by the concentration of fertilizer granules is avoided. Finally, the fertilizer granules are fed. The lower rod 10 is flipped upward by the hinge between the upper rod 9 and the lower rod 10 and then locked onto the mounting base 11.

[0025] The main functions achieved by this utility model are:

[0026] 1. The number of feeding holes can be set as needed, resulting in a wider coverage area. No power supply is required during feeding, thus reducing energy consumption.

[0027] 2. It can be folded for easy movement;

[0028] 3. It can adjust the amount of fertilizer granules applied;

[0029] 4. It can break up fertilizer granules, allowing the fertilizer to cover a larger area and avoiding the burning of seedlings caused by concentrated fertilizer granules.

[0030] The fertilizer granule dispensing device of this utility model has common mechanical installation, connection and setting methods, and can be implemented as long as it can achieve the beneficial effect. The fertilizer box 1, box cover 2, connecting parts 3, shaft 5, arc baffle 6, roller 8, angle sensor 12, wind concentrator 14, spring plate 15, rotating shaft 16, impeller 17 and elastic hammer 18 of the fertilizer granule dispensing device of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from technical personnel in this field.

[0031] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fertilizer granule dispensing device, comprising a fertilizer box (1), a box cover (2), and a connecting component (3), wherein the fertilizer box (1) has a fertilizer chamber inside, and a feeding port communicating with the fertilizer chamber is provided on the upper end face of the fertilizer box (1), the box cover (2) is hinged to the feeding port, and the connecting component (3) is installed on the fertilizer box (1); characterized in that, It also includes a feeding trough (4), a shaft (5), an arc-shaped baffle (6), and a lever assembly (7). The bottom of the fertilizer box (1) is provided with a downward protruding feeding trough (4). Multiple feeding holes are provided on the feeding trough (4). The two ends of the shaft (5) are rotatably connected to the left and right side walls of the fertilizer box (1). The arc-shaped baffle (6) is rotatably installed in the feeding trough (4). The arc-shaped baffle (6) covers the multiple feeding holes of the feeding trough (4). The arc-shaped baffle (6) is connected to the shaft (5). The upper end of the lever assembly (7) is connected to the end of the shaft (5). The lever assembly (7) is located outside the fertilizer box (1). The lower end of the lever assembly (7) extends out from below the fertilizer box (1).

2. The fertilizer granule dispensing device as described in claim 1, characterized in that, It also includes a roller (8), which is rotatably mounted on the lower end of the lever assembly (7).

3. The fertilizer granule dispensing device as described in claim 1, characterized in that, The lever assembly (7) includes an upper lever (9), a lower lever (10), and a retainer (11). The upper end of the upper lever (9) is connected to the end of the shaft (5), and the upper end of the lower lever (10) is hinged to the lower end of the upper lever (9). The lower lever (10) can be flipped upwards to the outside of the end of the shaft (5). The retainer (11) is installed on the fertilizer box (1) and is used to hold the lower lever (10).

4. The fertilizer granule dispensing device as described in claim 1, characterized in that, It also includes an angle sensor (12), which is installed on the fertilizer box (1) and is used to detect the rotation angle of the shaft (5).

5. The fertilizer granule dispensing device as described in claim 1, characterized in that, It also includes a vent (13), which is installed on the box cover (2). The vent (13) is provided with an air inlet facing the forward direction of the fertilizer box (1). The vent (13) is provided with an air outlet that is connected to the fertilizer chamber of the fertilizer box (1).

6. The fertilizer granule dispensing device as described in claim 1, characterized in that, It also includes a wind-gathering hood (14) and multiple spring plates (15). The wind-gathering hood (14) is installed on the fertilizer box (1). The wind-gathering hood (14) is provided with an air inlet 2 facing the forward direction of the fertilizer box (1). The wind-gathering hood (14) is provided with an air outlet 2 facing the multiple discharge holes of the feeding trough (4). The air inlet 2 is larger than the air outlet 2. Multiple spring plates (15) are installed on the wind-gathering hood (14). The multiple spring plates (15) extend into the multiple discharge holes of the feeding trough (4) respectively.

7. The fertilizer granule dispensing device as described in claim 6, characterized in that, It also includes a rotating shaft (16), a fan impeller (17) and an elastic hammer (18). The rotating shaft (16) is rotatably installed in the air inlet of the wind-collecting hood (14) via a bracket. The fan impeller (17) is installed at the front end of the rotating shaft (16) and the elastic hammer (18) is installed at the rear end of the rotating shaft (16). The elastic hammer (18) strikes the wind-collecting hood (14) and the fertilizer box (1).

Citation Information

Patent Citations

  • Accurate fertilizer feeding device

    CN220402363U