Unmanned aerial vehicle seeding device

By linking the spiral blades and the delivery pump in the drone seeding device, and combining centrifugal force and airflow, the problem of uneven seed sowing is solved, achieving efficient and precise sowing results and reducing maintenance costs.

CN223987408UActive Publication Date: 2026-03-13ZHEJIANG WANLI SHENNONG AGRI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing drone seeding devices are easily affected by seed size, resulting in uneven output. Especially when operating at high speed, it is difficult to achieve dynamic adjustment, causing missed seeding or double seeding. In addition, traditional devices have complex structures and high maintenance costs.

Method used

The seeding mechanism uses a combination of threaded blades and a delivery pump, and a motor-driven rotating shaft to create a spiral airflow and centrifugal force. This, combined with the delivery pump's linkage to the drone's flight speed, ensures uniform seed dispersal. Furthermore, the airflow is purified through a filter assembly to prevent clogging, resulting in a simple and reliable structure.

Benefits of technology

It achieves uniform seed distribution, reduces missed or repeated sowing, improves sowing accuracy and efficiency, has a simple structure and low maintenance cost, and is adaptable to seeds of various sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an unmanned aerial vehicle seeding device, and relates to the technical field of unmanned aerial vehicle seeding. Comprising a seed storage box and a sowing barrel, the sowing barrel is fixedly connected to the lower portion of the seed storage box, a sowing opening is formed in one side of the lower portion of the sowing barrel, a conveying mechanism is arranged at the bottom of the seed storage box, a sowing mechanism is arranged in the sowing barrel, and the sowing mechanism comprises a motor fixedly installed at one end of the sowing barrel. And the output end of the motor is connected with a rotating shaft. According to the unmanned aerial vehicle seeding device, through cooperative arrangement of the seeding mechanism and the conveying mechanism, efficient and accurate seeding is achieved. Threaded blades in the seeding mechanism push seeds in combination with centrifugal force and airflow, so that the seeds are uniformly distributed, miss-seeding and reseeding are reduced, the seeding precision is improved, the structure is simple, the maintenance cost is low, a conveying pump in the conveying mechanism is linked with the flight speed, the seeds are forcibly sucked to form continuous material flow, the seed supply amount is dynamically adjusted, and the overall seeding efficiency is greatly improved.
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Description

Technical Field

[0001] This application relates to the field of drone seeding technology, specifically to a drone seeding device. Background Technology

[0002] With the development of precision agriculture, drone seeding technology has been widely used due to its high efficiency and flexibility, while traditional manual seeding has problems such as low efficiency, poor uniformity, and high labor intensity.

[0003] Most commercially available drone seeding devices use pneumatic or simple mechanical metering devices, which are easily affected by the size of the seed particles, resulting in uneven output. Especially during high-speed operation, dynamic adjustment is difficult to achieve, causing missed seeding or double seeding. In order to solve the above problems, a drone seeding device is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this application provides a drone seeding device that solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this application provides the following technical solution: a drone seeding device, comprising a seed storage box and a seeding cylinder, wherein the seeding cylinder is fixedly connected to the bottom of the seed storage box, a seeding port is provided on one side below the seeding cylinder, a conveying mechanism is provided at the bottom of the seed storage box, and a seeding mechanism is provided inside the seeding cylinder, wherein the seeding mechanism includes a motor fixedly installed at one end of the seeding cylinder, the output end of the motor is connected to a rotating shaft, and threaded blades are fixedly connected to the surface of the rotating shaft.

[0008] By adopting the above technical solution, the motor drives the rotating shaft to rotate at high speed, which drives the spiral blades to form a spiral airflow in the seeding cylinder. After the seeds enter the seeding cylinder from the seed storage box, they are pushed to the seeding port by the spiral blades. The seeds are evenly sown by centrifugal force and airflow jet. The rotation push makes the seed distribution more uniform, reduces missed sowing or double sowing, improves sowing accuracy, and has a simple and reliable structure, low maintenance cost, and is suitable for seeds of various particle sizes.

[0009] Preferably, the conveying mechanism includes a conveying pump fixedly installed at the bottom of the seed storage box, the output end of the conveying pump is connected to a conveying pipe, and one end of the conveying pipe is connected to the seeding cylinder.

[0010] By adopting the above technical solution, the delivery pump forces the seeds at the bottom of the seed storage box to the seeding cylinder through the delivery pipe, forming a continuous material flow. The speed of the delivery pump is linked to the flight speed of the drone, dynamically adjusting the seed supply and improving the overall seeding efficiency.

[0011] Preferably, the upper surface of the seed storage box is provided with an installation component, the installation component including a mounting frame fixedly connected to the upper surface of the seed storage box, and a gasket is adhered to the surface of the mounting frame.

[0012] By adopting the above technical solution, the mounting frame is fixed to the drone bracket with bolts, the gasket fills the installation gap, the seed storage box is rigidly connected to the drone through the mounting frame, and the gasket buffers the flight vibration.

[0013] Preferably, observation components are provided on both sides of the seed storage box. Each observation component includes an installation port that extends through the side surface of the seed storage box, and an observation window is fixedly connected to the inner wall of the installation port.

[0014] By adopting the above technical solution, the modular installation design facilitates quick disassembly and maintenance. The observation window is made of transparent material and is embedded in the side wall of the seed storage box through the installation port, allowing users to observe the seed inventory.

[0015] Preferably, the installation components and observation components are arranged symmetrically along the central axis of the seed storage box.

[0016] By adopting the above technical solution, the symmetrical setup can meet the observation needs from different perspectives.

[0017] Preferably, a filter assembly is provided at one end of the seed storage box. The filter assembly includes a filter box fixedly connected to one end of the seed storage box, and a filter screen is provided on the surface of the filter box.

[0018] By adopting the above technical solution, the air entering the filter box is purified through the filter mesh, preventing impurities from entering the seeding inlet with the airflow and causing blockage.

[0019] Preferably, both ends of the filter box are provided with a blower mechanism. The blower mechanism includes a miniature air pump fixedly installed at one end of the filter box. The output end of the miniature air pump is connected to an air duct. One end of the air duct is connected to a blower plate. The blower plate is fixedly connected to the bottom of the filter box.

[0020] By adopting the above technical solution, a high-speed airflow is generated by a micro air pump, and the purified airflow is directed to the sowing port through the air duct and the blower plate to disperse the seed clumps and optimize the sowing trajectory.

[0021] (III) Beneficial Effects

[0022] This application provides a drone-based seeding device. It has the following beneficial effects:

[0023] This drone-based seeding device achieves efficient and precise seeding through the coordinated design of its seeding and conveying mechanisms. The seeding mechanism uses spiral blades to push seeds, combined with centrifugal force and airflow, ensuring even seed distribution, reducing missed or repeated seeding, and improving seeding accuracy. It also features a simple structure and low maintenance costs. The conveying mechanism's pump is linked to the flight speed, forcibly drawing in seeds to create a continuous material flow and dynamically adjusting the seed supply, significantly improving overall seeding efficiency. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a three-dimensional structural diagram of the present application;

[0026] Figure 2 This is a schematic diagram of the seeding mechanism and conveying mechanism of this application;

[0027] Figure 3 This is a structural diagram of the installation and observation components of this application;

[0028] Figure 4 This is a schematic diagram of the filter assembly and blower mechanism of this application.

[0029] In the picture:

[0030] 1. Seed storage box; 101. Seeding cylinder;

[0031] 2. Mounting components; 201. Mounting bracket; 202. Gasket;

[0032] 3. Filter assembly; 301. Filter box; 302. Filter mesh;

[0033] 4. Hair dryer mechanism; 401. Miniature air pump; 402. Air duct; 403. Hair dryer plate;

[0034] 5. Seeding mechanism; 501. Motor; 502. Rotating shaft; 503. Threaded blades;

[0035] 6. Observe the components; 601. Mounting port; 602. Observation window;

[0036] 7. Conveying mechanism; 701. Conveying pump; 702. Conveying pipeline. Detailed Implementation

[0037] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0038] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0039] Reference Figures 1 to 4 This application provides a drone seeding device, including a seed storage box 1 and a seeding cylinder 101. The seeding cylinder 101 is fixedly connected to the bottom of the seed storage box 1. A seeding port is opened on one side of the bottom of the seeding cylinder 101. A conveying mechanism 7 is provided at the bottom of the seed storage box 1. A seeding mechanism 5 is provided inside the seeding cylinder 101. The seeding mechanism 5 includes a motor 501 fixedly installed at one end of the seeding cylinder 101. The output end of the motor 501 is connected to a rotating shaft 502. Threaded blades 503 are fixedly connected to the surface of the rotating shaft 502. The motor 501 drives the rotating shaft 502 to rotate at high speed, causing the threaded blades 503 to form a spiral airflow inside the seeding cylinder 101. After the seeds enter the seeding cylinder from the seed storage box 1, they are pushed to the seeding port by the threaded blades. Uniform sowing is achieved through centrifugal force and airflow jet. The rotation and pushing make the seed distribution more uniform, reduce missed sowing or double sowing, improve sowing accuracy, and the structure is simple and reliable with low maintenance cost, and it is suitable for seeds of various particle sizes.

[0040] Reference Figure 2 In one aspect of this embodiment, the conveying mechanism 7 includes a conveying pump 701 fixedly installed at the bottom of the seed storage box 1. The output end of the conveying pump 701 is connected to a conveying pipe 702, and one end of the conveying pipe 702 is connected to the sowing cylinder 101. The conveying pump 701 forcibly draws the seeds from the bottom of the seed storage box 1 into the sowing cylinder 101 through the conveying pipe 702, forming a continuous material flow. The speed of the conveying pump is linked to the flight speed of the UAV, dynamically adjusting the seed supply and improving the overall sowing efficiency.

[0041] Reference Figure 3 In one aspect of this embodiment, an installation component 2 is provided on the upper surface of the seed storage box 1. The installation component 2 includes a mounting bracket 201 fixedly connected to the upper surface of the seed storage box 1, and a gasket 202 is adhered to the surface of the mounting bracket 201.

[0042] Both sides of the seed storage box 1 are provided with observation components 6. The observation components 6 include an installation port 601 that runs through the side surface of the seed storage box 1, and an observation window 602 is fixedly connected to the inner wall of the installation port 601.

[0043] The mounting component 2 and the observation component 6 are symmetrically arranged along the central axis of the seed storage box 1. The mounting bracket 201 is fixed to the drone bracket with bolts, and the gasket 202 fills the installation gap. The seed storage box 1 is rigidly connected to the drone through the mounting bracket. The gasket buffers flight vibration. The modular installation design facilitates quick disassembly and maintenance. The observation window 602 is made of transparent material and is embedded in the side wall of the seed storage box 1 through the mounting port 601, allowing the user to observe the seed storage level.

[0044] Reference Figure 4 In one aspect of this embodiment, a filter assembly 3 is provided at one end of the seed storage box 1. The filter assembly 3 includes a filter box 301 fixedly connected to one end of the seed storage box 1, and a filter mesh 302 is provided on the surface of the filter box 301.

[0045] Both ends of the filter box 301 are equipped with a blower mechanism 4. The blower mechanism 4 includes a miniature air pump 401 fixedly installed at one end of the filter box 301. The output end of the miniature air pump 401 is connected to an air duct 402, and one end of the air duct 402 is connected to a blower plate 403, which is fixedly connected to the bottom of the filter box 301. The air entering the filter box 301 is purified by the filter screen 302 to prevent impurities from entering the sowing port with the airflow and causing blockage. The miniature air pump 401 generates a high-speed airflow, which is guided to the sowing port through the air duct 402 and the blower plate 403 to disperse seed clumps and optimize the sowing trajectory.

[0046] All electrical devices in this solution are powered by built-in batteries.

[0047] Working principle: During use, seeds are loaded through the inlet at the top of the seed storage box 1, and then the seed storage box 1 is fixed to the drone by the mounting component 2. Then, the conveying mechanism 7 is started, and the conveying pump 701 forcibly draws the seeds at the bottom of the seed storage box into the sowing cylinder 101 through the conveying pipe 702. Its rotation speed is linked to the flight speed of the drone to dynamically adjust the seed supply. Then, the sowing mechanism 5 operates. The motor 501 drives the rotating shaft 502 to rotate the threaded blades 503, forming a spiral airflow in the sowing cylinder, pushing the seeds to the sowing port. The seeds are evenly sown through centrifugal force and airflow jet. During the sowing process, the purified airflow of the blower mechanism 4 is guided to the sowing port to disperse seed clumps and optimize the sowing trajectory.

[0048] 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. An unmanned aerial vehicle seeding device comprising a seed storage tank (1), a seeding cylinder (101), characterized in that: The seed sowing barrel (101) is fixedly connected below the seed storage box (1), one side below the seed sowing barrel (101) is provided with a sowing port, the bottom of the seed storage box (1) is provided with a conveying mechanism (7), the inside of the seed sowing barrel (101) is provided with a sowing mechanism (5), the sowing mechanism (5) comprises a motor (501) fixedly installed at one end of the seed sowing barrel (101), the output end of the motor (501) is connected with a rotating shaft (502), and the surface of the rotating shaft (502) is fixedly connected with a threaded blade (503).

2. The unmanned aerial vehicle seeding device of claim 1, wherein: The conveying mechanism (7) comprises a conveying pump (701) fixedly installed at the bottom of the seed storage box (1), and the output end of the conveying pump (701) is connected with a conveying pipeline (702), one end of the conveying pipeline (702) is connected with the seed sowing barrel (101).

3. The unmanned aerial vehicle seeding device of claim 1, wherein: The upper surface of the seed storage box (1) is provided with a mounting assembly (2), the mounting assembly (2) comprises a mounting frame (201) fixedly connected to the upper surface of the seed storage box (1), and the surface of the mounting frame (201) is bonded with a gasket (202).

4. The unmanned aerial vehicle seeding device of claim 3, wherein: The surfaces of the two sides of the seed storage box (1) are provided with observation assemblies (6), the observation assembly (6) comprises a mounting opening (601) penetratingly formed in the side surface of the seed storage box (1), and the inner wall of the mounting opening (601) is fixedly connected with an observation window (602).

5. The unmanned aerial vehicle seeding device of claim 4, wherein: The mounting assembly (2) and the observation assembly (6) are symmetrically arranged along the central axis of the seed storage box (1).

6. The unmanned aerial vehicle seeding device of claim 1, wherein: One end of the seed storage box (1) is provided with a filter assembly (3), the filter assembly (3) comprises a filter box (301) fixedly connected to one end of the seed storage box (1), and the surface of the filter box (301) is provided with a filter gauze (302).

7. The unmanned aerial vehicle seeding device of claim 6, wherein: Both ends of the filter box (301) are provided with blowing mechanisms (4), the blowing mechanism (4) comprises a micro air pump (401) fixedly installed at one end of the filter box (301), the output end of the micro air pump (401) is connected with an air pipe (402), one end of the air pipe (402) is connected with a blowing plate (403), and the blowing plate (403) is fixedly connected to the bottom of the filter box (301).