Fertilizing unmanned aerial vehicle capable of adjusting fertilizing amount and realizing uniform fertilizing

Through innovative design of the feeding and spreading components, the problems of clogging and uneven fertilization in drone fertilization equipment have been solved, enabling dynamic adjustment of fertilization amount and precise fertilization, adapting to different farmland terrains and crop needs.

CN223778549UActive Publication Date: 2026-01-09HAIKOU AGRI TECH POPULARIZATION CENT
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Patent Information

Application Number
CN202520506527.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-01-09
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

Existing drone fertilization equipment has difficulty in achieving variable fertilization, especially in controlling the amount and rate of fertilizer application under different growth or soil conditions, leading to uneven fertilization and equipment blockage.

Method used

It adopts a combination design of feeding and spreading components, including hopper, long rod, spiral blades, feeding motor, turntable shell, spreading motor, etc. The motor drives the rotation of spiral blades and serrated blades to achieve uniform pushing and spreading of fertilizer, and the fertilization range is controlled by adjustable baffles.

Benefits of technology

It achieves dynamic adjustment and uniformity of fertilizer application, solves the clogging problem, improves the accuracy and adaptability of fertilization, and adapts to different farmland terrains and crop needs.

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Abstract

The utility model provides a fertilization unmanned aerial vehicle capable of adjusting fertilization amount and uniform fertilization, and relates to the technical field of unmanned aerial vehicles, the fertilization unmanned aerial vehicle comprises a blanking assembly and a scattering assembly, the blanking assembly is provided with a long rod with a helical blade, a motor is started to drive the long rod to drive the helical blade to rotate, so that caked solid fertilizer is preliminarily ground open, and the scattering assembly is driven to scatter the fertilizer. A rotating shaft with a sawtooth blade group is arranged in the material scattering assembly, the solid fertilizer enters the material scattering assembly through a discharging port, and the motor is started to enable the rotating shaft to drive the sawtooth blade group to rotate, so that the caked solid fertilizer is further ground open, and the solid fertilizer can be scattered out more uniformly; a baffle capable of being controlled to move is arranged at a discharging opening of the material scattering assembly, one end of the baffle is connected with the rotary disc shell through a hinge, the other end of the baffle is connected with the rotary disc shell through a telescopic fixing rod, the material scattering range can be controlled by controlling the length of the telescopic fixing rod, and therefore the material scattering range and the fertilizer applying amount are controlled.
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Description

Technical Field

[0001] This application relates to the technical field of agriculture, and in particular to a fertilizer application drone that can adjust the amount of fertilizer applied and apply fertilizer evenly. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are unmanned aircraft controlled by radio remote control equipment and their own program control devices, or operated autonomously, either completely or intermittently, by an onboard computer. UAVs can be categorized into military and civilian applications. In recent years, UAVs have become increasingly common in civilian use, currently finding applications in aerial photography, agriculture, plant protection, miniature selfies, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying, news reporting, power line inspection, disaster relief, film and television production, and creating romantic scenes, greatly expanding the uses of UAVs. Developed countries are also actively expanding industry applications and developing UAV technology.

[0003] With the continuous development of agricultural automation, the application of fertilization by drones is of paramount importance. Currently, drone fertilization is still relatively rare, especially since the process requires adapting to different growth stages and soil conditions. This increases the difficulty of drone fertilization. Current fertilization methods are generally quantitative, making it difficult to control the amount or rate of application, thus hindering the achievement of truly variable fertilization.

[0004] This invention addresses the above problems by providing a drone-based variable fertilization device to improve the quality and effectiveness of fertilization. Utility Model Content

[0005] To address the problems mentioned in the background section, this application provides a fertilizer application drone that can adjust the amount of fertilizer applied and apply fertilizer evenly.

[0006] This application provides a fertilizer application drone with adjustable fertilizer application rate and uniform fertilizer application, which adopts the following technical solution: it includes a feeding component for improving fertilizer passability, and a spreading component for improving fertilizer application uniformity and controlling fertilizer application rate. Multiple shells are installed on the outer side of the feeding component, and a spreading component is fixedly installed on the lower side of the feeding component.

[0007] The feeding assembly includes a hopper, inside which a long rod is movably sleeved, and a spiral blade is fixedly mounted on the long rod. A feeding motor is disposed on the outside of the hopper, and the output shaft of the feeding motor is fixedly connected to one end of the long rod. A feeding pipe is fixedly mounted on one side below the hopper, and the long rod passes through the inside of the feeding pipe.

[0008] Optionally, the material spreading assembly includes a turntable housing, with the bottom end of the feeding pipe inserted through and connected to the top of the turntable housing, and a material spreading motor fixedly installed on the top of the turntable housing.

[0009] Optionally, a rotating shaft is fixedly sleeved on one end of the output shaft of the spreading motor, and one end of the rotating shaft passes through the turntable housing and is rotatably connected to the turntable housing. A serrated blade assembly is fixedly installed on the periphery of the rotating shaft.

[0010] Optionally, a hinge is fixedly installed on one side of the turntable housing opening, and a baffle is fixedly installed on the other end of the hinge.

[0011] Optionally, a telescopic fixing rod is movably sleeved on one side of the turntable housing, and the other end of the telescopic fixing rod is movably sleeved on the back of the baffle.

[0012] Optionally, the housing includes a drone motor assembly, and a drone blade assembly is fixedly sleeved at one end of the output shaft of the drone motor assembly.

[0013] Optionally, the housing includes a retractable rod assembly, on which a support frame assembly is movably mounted.

[0014] This application includes the following beneficial technical effects:

[0015] 1. This utility model, through the coordinated arrangement of a hopper, a feeding pipe, a long rod, spiral blades, and a feeding motor, enables the long rod to rotate, and the spiral blades rotate with the long rod, uniformly crushing the solid fertilizer. This effectively solves the clogging problem caused by fertilizer clumping in traditional fertilization equipment. The spiral blades continuously and stably push the solid fertilizer evenly to the feeding pipe, effectively solving the problem of uncontrollable feeding amount in traditional fertilization equipment.

[0016] 2. This utility model includes a spreading assembly comprising a turntable housing, a baffle, a hinge, a telescopic fixing rod, a serrated blade assembly, a rotating shaft, and a spreading motor. The spreading motor drives the rotating shaft to rotate, and the serrated blade assembly rotates with the shaft, further breaking down the solid fertilizer from the feed pipe. The serrated blades use centrifugal force to evenly spread the solid fertilizer. Simultaneously, the opening and closing degree of the baffle can be adjusted by adjusting the telescopic fixing rod, thereby regulating the spreading range of the solid fertilizer. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0018] Figure 2 This is a side view of the structure in an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the structure of the feeding component in an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the structure of the feeding component and the spreading component in the embodiments of this application;

[0021] Figure 5 This is a schematic diagram of the structure outside the material spreading component in the embodiments of this application.

[0022] Reference numerals: 1. Hopper; 2. Feeding pipe; 3. Long rod; 4. Spiral blade; 5. Turntable housing; 501. Baffle; 502. Hinge; 503. Telescopic fixing rod; 504. Serrated blade assembly; 505. Rotating shaft; 6. Housing; 7. Feeding motor; 8. Spreading motor; 9. Feeding assembly; 10. Spreading assembly; 11. UAV blade assembly; 12. Retractable rod assembly; 13. Support frame assembly; 14. UAV motor assembly. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a fertilizer application drone with adjustable fertilizer application amount and uniform fertilizer application, including a feeding component 9 for improving fertilizer passability, and a spreading component 10 for improving fertilizer application uniformity and controlling fertilizer application amount. Multiple shells 6 are installed on the outside of the feeding component 9, and the spreading component 10 is fixedly installed on the lower side of the feeding component 9.

[0025] The feeding assembly 9 includes a hopper 1, a long rod 3 is movably sleeved inside the hopper 1, a spiral blade 4 is fixedly installed on the long rod 3, a feeding motor 7 is provided on the outside of the hopper 1, the output shaft of the feeding motor 7 is fixedly connected to one end of the long rod 3, and a feeding pipe 2 is fixedly installed on one side below the hopper 1, and the long rod 3 passes through the inside of the feeding pipe 2.

[0026] It should be noted that the feeding motor 7 rotates, driving the long rod 3 to rotate. A spiral blade 4 is fixedly installed on the long rod, causing the feeding motor 7 to drive the spiral blade 4 to rotate. The spiral structure of the spiral blade 4 can evenly push the fertilizer into the feeding pipe 2, ensuring that the fertilizer continuously and stably enters the spreading assembly 9. The movable sleeve design between the long rod and the hopper 1 enhances the adaptability of the assembly, enabling it to handle fertilizers of different particle sizes or moisture levels, effectively solving the clogging problem caused by fertilizer agglomeration in traditional fertilization equipment. This reduces the frequency of equipment maintenance.

[0027] like Figure 2 , Figures 4-5 The material spreading assembly 10 includes a turntable housing 5, with the bottom end of the feeding pipe 2 inserted through the top of the turntable housing 5, and a material spreading motor 8 fixedly installed on the top of the turntable housing 5.

[0028] It should be noted that the through-connection between the feed pipe and the turntable housing facilitates better entry of solid fertilizer from the feed pipe into the turntable housing, effectively preventing splashing of solid fertilizer when it enters the turntable housing from the feed pipe.

[0029] like Figures 1-2 , Figures 4-5One end of the output shaft of the spreading motor 8 is fixedly sleeved with a rotating shaft 505. One end of the rotating shaft 505 passes through the turntable housing 5 and is rotatably connected to the turntable housing 5. A sawtooth blade assembly 504 is fixedly installed on the periphery of the rotating shaft 505.

[0030] It should be noted that after the spreading motor is started, the sawtooth blade assembly rotates at high speed, further crushing the fertilizer from the feed pipe, refining the particles, and avoiding uneven spreading caused by fertilizer clumping.

[0031] like Figure 2 , Figure 5 A hinge 502 is fixedly installed on one side of the opening of the turntable shell 5, and a baffle 501 is fixedly installed on the other end of the hinge 502.

[0032] It should be noted that the baffle is connected to the turntable housing via a hinge, and the baffle can move in an arc around the hinge as an axis under the action of the hinge.

[0033] like Figure 2 , Figure 5 As shown, a telescopic fixing rod 503 is movably sleeved on one side of the turntable housing 5, and the other end of the telescopic fixing rod 503 is movably sleeved on the back of the baffle 501.

[0034] It should be noted that the spreading range can be flexibly controlled by adjusting the opening angle of the baffle 501. The larger the opening degree of the baffle 501, the wider the spreading range, and the less fertilizer is applied per unit area; conversely, the range is reduced and the amount of fertilizer applied increases.

[0035] like Figures 1-2 As shown, the outer shell 6 includes a drone motor assembly 14, and a drone blade assembly 11 is fixedly sleeved at one end of the output shaft of the drone motor assembly 14.

[0036] It should be noted that when the drone begins to fly, the drone motor assembly drives the drone blade assembly to rotate at high speed, enabling the drone to achieve the flight effect.

[0037] like Figures 1-2 As shown, the outer casing 6 includes a retractable rod assembly 12, and a support frame assembly 13 is movably mounted on the retractable rod assembly 12.

[0038] It should be noted that when the drone finishes its work, after the drone blade assembly stops rotating, the retractable rod assembly can be retracted inward to reduce its size, footprint, and ease of transportation.

[0039] The implementation principle of this application's embodiment of a fertilizer-applying drone with adjustable fertilizer application rate and uniform application is as follows: When the feeding motor is started, the spiral blades rotate with the long rod, initially breaking up clumps of solid fertilizer, effectively solving the clogging problem caused by fertilizer agglomeration in traditional fertilizer-applying equipment. The spiral structure of the spiral blades can evenly push the fertilizer into the feeding pipe, ensuring that the fertilizer continuously and stably enters the spreading component. In addition, the movable sleeve design between the long rod and the hopper enhances the adaptability of the component, enabling it to handle fertilizers of different particle sizes or moisture levels, reducing equipment maintenance frequency. The fertilizer throughput of the feeding component is significantly improved, which not only reduces energy consumption but also improves the continuity and stability of fertilization operations.

[0040] The high-speed rotation of the serrated blades further breaks down and refines the fertilizer from the feed pipe, preventing uneven application caused by fertilizer clumping. Simultaneously, the centrifugal force of the serrated blades evenly distributes the fertilizer to the target area, significantly improving the uniformity of fertilizer coverage. Furthermore, an adjustable baffle at the turntable's outlet is linked to a telescopic fixing rod via a hinge, allowing for flexible control of the application range by adjusting the baffle's opening angle. A wider opening results in a larger application range and a reduced fertilizer application rate per unit area; conversely, a smaller opening reduces the application range and increases the fertilizer application rate. This not only enables dynamic adjustment of fertilizer application but also adapts to different farmland terrains and crop requirements, significantly improving the accuracy and flexibility of fertilization operations.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A fertilizer application drone with adjustable fertilizer application rate and uniform application, comprising a feeding component (9) for improving fertilizer passability, and a spreading component (10) for improving fertilizer uniformity and controlling fertilizer application rate, characterized in that... Multiple housings (6) are installed on the outside of the feeding assembly (9), and a spreading assembly (10) is fixedly installed on the lower side of the feeding assembly (9); The feeding assembly (9) includes a hopper (1), a long rod (3) is movably sleeved inside the hopper (1), a spiral blade (4) is fixedly installed on the long rod (3), a feeding motor (7) is provided on the outside of the hopper (1), the output shaft of the feeding motor (7) is fixedly connected to one end of the long rod (3), a feeding pipe (2) is fixedly installed on one side below the hopper (1), and the long rod (3) passes through the inside of the feeding pipe (2).

2. The fertilizer application drone with adjustable fertilizer application rate and uniform fertilizer application according to claim 1, characterized in that: The material spreading assembly (10) includes a turntable housing (5), the bottom end of the feeding pipe (2) is inserted through the top of the turntable housing (5), and a material spreading motor (8) is fixedly installed on the top of the turntable housing (5).

3. The fertilizer application drone with adjustable fertilizer application rate and uniform fertilization according to claim 2, characterized in that: One end of the output shaft of the spreading motor (8) is fixedly sleeved with a rotating shaft (505). One end of the rotating shaft (505) passes through the turntable shell (5) and is rotatably connected to the turntable shell (5). A sawtooth blade assembly (504) is fixedly installed on the periphery of the rotating shaft (505).

4. A fertilizer application drone with adjustable fertilizer application rate and uniform fertilizer application according to claim 2, characterized in that: A hinge (502) is fixedly installed on one side of the opening of the turntable housing (5), and a baffle (501) is fixedly installed on the other end of the hinge (502).

5. A fertilizer application drone with adjustable fertilizer application rate and uniform fertilizer application according to claim 4, characterized in that: A telescopic fixing rod (503) is movably sleeved on one side of the turntable housing (5), and the other end of the telescopic fixing rod (503) is movably sleeved on the back of the baffle (501).

6. The fertilizer application drone with adjustable fertilizer application rate and uniform fertilizer application according to claim 1, characterized in that: The outer casing (6) includes a drone motor assembly (14), and a drone blade assembly (11) is fixedly sleeved at one end of the output shaft of the drone motor assembly (14).

7. A fertilizer application drone with adjustable fertilizer application rate and uniform fertilizer application according to claim 1, characterized in that: The outer casing (6) includes a retractable rod assembly (12), on which a support frame assembly (13) is movably mounted.