An unmanned aerial vehicle fertilizing device

CN224891192UActive Publication Date: 2026-10-27CHINA WATER CONSERVANCY & HYDROPOWER NO 9 ENG BUREAU CO LTD
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Patent Information

Application Number
CN202522626403.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-11
Publication Date
2026-10-27
Estimated Expiration
2035-12-11

AI Technical Summary

Technical Problem

[0005]本实用新型的目的就在于为了解决上述问题而提供一种无人机施肥装置,改善了现有的无人机施肥装置大多缺少有效的防堵措施,粉末状或易受潮结块的肥料在从料箱进入螺旋输送机构的进料口处,容易因架桥、粘结或颗粒间摩擦而出现堵塞或下料不畅,一旦进料口堵塞,会导致排肥中断或排肥量不稳定,严重影响施肥作业的连续性和均匀性的问题

Benefits of technology

[0025]1、本装置通过设置由第一转动杆通过皮带轮组驱动的第二转动杆及固定于其上的搅动块,在电机驱动螺旋叶片输送肥料的同时,搅动块在进料口内同步旋转,对下料路径上的肥料进行持续、主动的机械搅动与疏通,这一设计解决了传统无人机施肥装置因肥料架桥、结块导致的进料口堵塞难题,确保了肥料下料过程稳定、连续,显著提升了无人机施肥作业的可靠性与效率。

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Abstract

The utility model relates to unmanned plane fertilization technical field, specifically is a kind of unmanned plane fertilization device, include: body;Mounting plate is connected in the lower end of body;Material box is fixedly connected in the lower end of mounting plate;Discharge shell is fixedly connected in the lower end of material box;Two feed ports, two feed ports are respectively set up in the lower inner wall of material box and penetrate the upper inner wall of discharge shell;The device is driven by the second rotating rod and the agitating block fixed on it by the first rotating rod through belt pulley group, while the motor drives the spiral blade to convey fertilizer, the agitating block rotates synchronously in feed port, and the fertilizer on the discharging path is continuously, active mechanical agitation and dredging, this design solves the problem of traditional unmanned plane fertilization device because of fertilizer bridging, caking leads to feed port blockage, ensures that fertilizer discharging process is stable, continuous, significantly improves the reliability and efficiency of unmanned plane fertilization operation.
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Description

Technical Field

[0001] This utility model relates to the field of drone fertilization technology, and in particular to a drone fertilization device. Background Technology

[0002] The increasing demand for agricultural modernization and precision operations has driven the deep application of drone technology in all aspects of agricultural production. Plant protection drones are widely used for pesticide spraying, while the use of drones for spreading solid granular fertilizers has become an important development direction in recent years due to its advantages such as high operating efficiency, strong terrain adaptability, and reduced soil compaction.

[0003] Currently, drone fertilization devices on the market typically include a hopper installed under the drone body and a conveying mechanism for controlling and discharging fertilizer. The common method of discharging fertilizer is to use a screw conveyor to transport fertilizer from the hopper to the discharge port. However, since most of these devices lack effective anti-clogging measures, in actual applications, powdery or moisture-sensitive fertilizers are prone to bridging, adhesion, or inter-particle friction at the feed inlet of the screw conveyor mechanism, resulting in blockage or poor discharge. Once the feed inlet is blocked, it will lead to interruption of fertilizer discharge or unstable fertilizer discharge, seriously affecting the continuity and uniformity of fertilization operations.

[0004] Therefore, a drone fertilization device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a drone fertilization device to solve the above-mentioned problems. It improves the fact that most existing drone fertilization devices lack effective anti-clogging measures. Powdered or moisture-sensitive fertilizers are prone to bridging, adhesion, or inter-particle friction at the feed inlet of the screw conveyor mechanism, which can easily cause blockage or poor feeding. Once the feed inlet is blocked, it will lead to interruption of fertilizer discharge or unstable fertilizer discharge, which will seriously affect the continuity and uniformity of fertilization operations.

[0006] This utility model achieves the above objectives through the following technical solution: a drone fertilization device, comprising:

[0007] Organism;

[0008] Mounting plate, which is connected to the lower end of the machine body;

[0009] A material bin, which is fixedly connected to the lower end of the mounting plate;

[0010] The discharge shell is fixedly connected to the lower end of the material box;

[0011] Two feed inlets are respectively opened on the lower inner wall of the material box and penetrate through the upper inner wall of the discharge shell;

[0012] The L-shaped fixing plate is fixedly connected to one side of the discharge shell;

[0013] The motor is fixedly connected to one side of the L-shaped fixing plate;

[0014] The first rotating rod is fixedly connected to the output shaft of the motor and rotatably connected inside the discharge shell;

[0015] Two helical blades are fixedly connected to the circumferential surface of the first rotating rod.

[0016] The discharge port is located at the lower end of the discharge shell;

[0017] An anti-blocking component is provided inside the discharge shell to prevent blockage at the feed inlet.

[0018] Preferably, the anti-clogging component includes a second rotating rod, a pulley, and an agitator. Two pulleys and agitators are provided. The second rotating rod is rotatably connected to the discharge shell. One pulley is fixedly connected to the circumferential surface of the first rotating rod, and the other pulley is fixedly connected to the circumferential surface of the second rotating rod. A belt meshes between the two pulleys. The two agitators are respectively fixedly connected to the circumferential surface of the second rotating rod and are located in the two feed inlets.

[0019] Preferably, a hollow guide block is fixedly connected to the lower inner wall of the material box, and the hollow guide block is located between the two feed inlets.

[0020] Preferably, a flow divider is fixedly connected to the lower end of the discharge shell, and multiple flow divider baffles are fixedly connected to the surface of the flow divider.

[0021] Preferably, the upper end of the material box is provided with a threaded feeding port, and a threaded plug is threadedly connected to the threaded feeding port.

[0022] Preferably, a sealing ring is fixedly connected to one side of the discharge shell, and a limiting groove is formed in the sealing ring. A limiting ring is fixedly connected to the circumferential surface of the second rotating rod, and the limiting ring is rotatably connected in the limiting groove.

[0023] Preferably, the lower end of the machine body is provided with a plurality of screw holes, and the surface of the mounting plate is provided with a plurality of mounting holes, and a plurality of bolts are threaded into the plurality of screw holes.

[0024] The beneficial effects of this utility model are:

[0025] 1. This device is equipped with a second rotating rod driven by a first rotating rod through a pulley assembly and a stirring block fixed thereon. While the motor drives the spiral blades to transport fertilizer, the stirring block rotates synchronously in the feed inlet, continuously and actively stirring and clearing the fertilizer in the feeding path. This design solves the problem of feed inlet blockage caused by fertilizer bridging and clumping in traditional drone fertilization devices, ensuring a stable and continuous fertilizer feeding process and significantly improving the reliability and efficiency of drone fertilization operations.

[0026] 2. This device effectively cuts and disperses the fertilizer stream discharged from the outlet by fixing a diversion plate with multiple diversion baffles to the lower end of the discharge shell, making its landing on the ground wider and more uniform. Combined with the hollow guide block in the material box to uniformly guide the fertilizer to the two inlets, and the forced conveying and preliminary mixing by the spiral blades, it forms a multi-stage homogenization system, which greatly improves the uniformity of fertilizer distribution on the ground, which is conducive to the balanced absorption of crops and improves the effect of precision fertilization. Attached Figure Description

[0027] Figure 1 This is a front perspective view of the present invention;

[0028] Figure 2 This is a first sectional view of the present invention;

[0029] Figure 3 This utility model Figure 2 Enlarged view of part A in the image

[0030] Figure 4 This is a second sectional view of the present invention;

[0031] Figure 5 This is the first exploded view of this utility model;

[0032] Figure 6 This is the second exploded view of this utility model.

[0033] In the diagram: 1. Machine body; 2. Mounting plate; 3. Material box; 4. Discharge shell; 5. Inlet; 6. L-shaped fixing plate; 7. Motor; 8. First rotating rod; 9. Spiral blade; 10. Discharge port; 11. Second rotating rod; 12. Pulley; 13. Agitator block; 14. Hollow guide block; 15. Diverter plate; 16. Diverter baffle; 17. Threaded feed port; 18. Threaded plug; 19. Sealing ring; 20. Screw hole; 21. Mounting hole; 22. Bolt; 23. Limiting groove; 24. Limiting ring. Detailed Implementation

[0034] 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.

[0035] Example 1

[0036] Please see Figures 1-6 The present invention provides the following technical solution:

[0037] A drone fertilization device includes:

[0038] Body 1;

[0039] Mounting plate 2 is connected to the lower end of body 1;

[0040] Material box 3 is fixedly connected to the lower end of mounting plate 2;

[0041] The discharge shell 4 is fixedly connected to the lower end of the material box 3;

[0042] Two feed inlets 5 are respectively opened on the lower inner wall of the material box 3 and penetrate through the upper inner wall of the discharge shell 4;

[0043] L-shaped fixing plate 6, L-shaped fixing plate 6 is fixedly connected to one side of the discharge shell 4;

[0044] Motor 7 is fixedly connected to one side of L-shaped fixing plate 6;

[0045] The first rotating rod 8 is fixedly connected to the output shaft of the motor 7 and rotatably connected inside the discharge shell 4;

[0046] Two helical blades 9 are fixedly connected to the circumferential surface of the first rotating rod 8;

[0047] The discharge port 10 is located at the lower end of the discharge shell 4;

[0048] An anti-blocking component is installed inside the discharge shell 4 to prevent blockage at the inlet 5.

[0049] In a specific embodiment of this utility model, when fertilization is required, the operator starts the motor 7. The output shaft of the motor 7 drives the first rotating rod 8 to rotate inside the discharge shell 4. When the first rotating rod 8 rotates, the two spiral blades 9 fixed on its circumferential surface rotate accordingly. Under the action of gravity, the fertilizer in the hopper 3 enters the internal space of the discharge shell 4 through the two inlets 5 opened on the lower inner wall of the hopper 3 and penetrating into the discharge shell 4. The rotating spiral blades 9 convey and mix the fertilizer entering, and push it towards the discharge port 10 opened at the lower end of the discharge shell 4. The fertilizer is then discharged from the discharge port 10. When the motor 7 drives the first rotating rod 8 to rotate, the anti-blocking component set inside the discharge shell 4 begins to work in coordination. This anti-blocking component directly... The anti-blocking component operates in the area of ​​the two feed inlets 5. When fertilizer may stagnate or stick at the feed inlets 5 due to its physical properties, the anti-blocking component continuously loosens and clears the fertilizer at the feed inlets 5 through its mechanical action. This keeps the flow path of fertilizer from the hopper 3 through the feed inlets 5 to the discharge shell 4 unobstructed, avoiding interruption of feeding due to blockage of the feed inlets 5. The entire fertilization process can be carried out continuously under the continuous drive of the motor 7 through the device connected to the machine body 1 by the mounting plate 2, and finally completes the aerial delivery of fertilizer. During this process, the L-shaped fixing plate 6 fixedly connected to one side of the discharge shell 4 provides support for the motor 7, while the hopper 3 is fixedly connected to the lower end of the mounting plate 2, and the discharge shell 4 is fixedly connected to the lower end of the hopper 3, forming a complete structural system.

[0050] Please refer to the details. Figures 1-6 The anti-clogging component includes a second rotating rod 11, a pulley 12, and an agitator 13. There are two pulleys 12 and two agitators 13. The second rotating rod 11 is rotatably connected to the discharge shell 4. One pulley 12 is fixedly connected to the circumferential surface of the first rotating rod 8, and the other pulley 12 is fixedly connected to the circumferential surface of the second rotating rod 11. A belt meshes between the two pulleys 12. The two agitators 13 are fixedly connected to the circumferential surface of the second rotating rod 11, and the two agitators 13 are located in the two feed inlets 5 respectively.

[0051] In this embodiment: when the motor 7 drives the first rotating rod 8 to rotate, a pulley 12 fixed on the circumferential surface of the first rotating rod 8 rotates accordingly. Through the meshing connection between the belt and the two pulleys 12, the power is transmitted to another pulley 12 fixed on the circumferential surface of the second rotating rod 11, thereby driving the second rotating rod 11 to rotate inside the discharge shell 4. When the second rotating rod 11 rotates, the two stirring blocks 13 fixed on its circumferential surface rotate synchronously in the corresponding two feed inlets 5. The rotating stirring blocks 13 continuously stir and agitate the fertilizer in and around the feed inlet 5, effectively breaking up any bridging or clumping that may form in the fertilizer, thereby preventing blockage of the feed inlet 5.

[0052] Please refer to the details. Figures 1-6 A hollow guide block 14 is fixedly connected to the lower inner wall of the material box 3, and the hollow guide block 14 is located between the two feed inlets 5.

[0053] In this embodiment: A hollow guide block 14 is fixedly connected to the lower inner wall of the material box 3. The hollow guide block 14 is located between the two feed inlets 5. When the fertilizer in the material box 3 flows downward, it will flow along the outer surface of the hollow guide block 14. The shape of the hollow guide block 14 guides and diverts the falling fertilizer flow, so that it can flow more evenly to the two feed inlets 5. The hollow guide block 14 with a hollow structure helps to reduce the overall weight of the device, thereby reducing the load of the UAV during flight.

[0054] Please refer to the details. Figures 1-6 A flow divider plate 15 is fixedly connected to the lower end of the discharge shell 4, and multiple flow divider baffles 16 are fixedly connected to the surface of the flow divider plate 15.

[0055] In this embodiment: A diversion plate 15 is fixedly connected to the lower end of the discharge shell 4. Multiple diversion baffles 16 are fixedly connected to the surface of the diversion plate 15. When the fertilizer is transported to the discharge port 10 by the spiral blades 9 and discharged, the falling fertilizer first hits the diversion plate 15. The multiple diversion baffles 16 divide and disperse the concentrated fertilizer flow into multiple smaller streams, changing the landing point and distribution range of the fertilizer, thereby helping the fertilizer to form a wider and more uniform distribution when it lands.

[0056] Please refer to the details. Figures 1-6 The upper end of the material box 3 is provided with a threaded feeding port 17, and a threaded plug 18 is connected to the threaded feeding port 17.

[0057] In this embodiment: A threaded feeding port 17 is provided at the upper end of the material box 3. A threaded plug 18 is threadedly connected inside the threaded feeding port 17. When fertilizer needs to be added to the material box 3, the operator unscrews the threaded plug 18, and the fertilizer can be added to the material box 3 through the threaded feeding port 17. After the feeding is completed, the threaded plug 18 is tightened to seal the material box 3 and prevent fertilizer from escaping during flight or operation.

[0058] Please refer to the details. Figures 1-6 A sealing ring 19 is fixedly connected to one side of the discharge shell 4. A limiting groove 23 is opened in the sealing ring 19. A limiting ring 24 is fixedly connected to the circumferential surface of the second rotating rod 11. The limiting ring 24 is rotatably connected in the limiting groove 23.

[0059] In this embodiment: a sealing ring 19 is fixedly connected to one side of the discharge shell 4. A limiting groove 23 is provided in the sealing ring 19. A limiting ring 24 is fixedly connected to the circumferential surface of the second rotating rod 11. When the second rotating rod 11 rotates under the drive of the pulley 12, the limiting ring 24 on it is located in the limiting groove 23 of the sealing ring 19 and rotates accordingly. The cooperation between the limiting groove 23 and the limiting ring 24 not only constrains the axial position of the second rotating rod 11, but also, through the material characteristics of the sealing ring 19, prevents fertilizer powder from leaking from the gap between the second rotating rod 11 and the discharge shell 4 to a certain extent.

[0060] Please refer to the details. Figures 1-6 The lower end of the body 1 is provided with multiple screw holes 20, and the surface of the mounting plate 2 is provided with multiple mounting holes 21. Multiple bolts 22 are threaded into the screw holes 20 respectively.

[0061] In this embodiment: multiple screw holes 20 are respectively opened at the lower end of the body 1, and multiple mounting holes 21 are respectively opened on the surface of the mounting plate 2. When it is necessary to install the fertilizer device onto the drone body 1, the mounting holes 21 on the mounting plate 2 are aligned with the screw holes 20 at the lower end of the body 1, and multiple bolts 22 are passed through the mounting holes 21 in sequence and screwed into the screw holes 20. By means of threaded connection, the mounting plate 2 and the entire fertilizer device can be firmly fixed to the lower end of the body 1.

[0062] Workflow: The mounting plate 2 is threaded through multiple bolts 22 through its mounting holes 21 and screwed into the screw holes 20 at the lower end of the body 1, thus securing the entire fertilization device to the drone. The threaded plug 18 inside the threaded feeding port 17 at the upper end of the material tank 3 is unscrewed, and fertilizer is added to the material tank 3 through this port. After adding fertilizer, the threaded plug 18 is tightened to seal the material tank 3. The drone is then operated to fly over the target fertilization area, and the motor 7 fixed to the L-shaped mounting plate 6 is started. The output shaft of the motor 7 immediately drives the first rotating rod 8 to begin high-speed rotation within the discharge shell 4. The moving rod 8 drives the two spiral blades 9, which are fixedly connected to its circumference, to rotate synchronously. Under the action of gravity, the fertilizer in the hopper 3 gathers to the bottom. The fertilizer flows through the outer surface of the hollow guide block 14 fixed to the lower inner wall of the hopper 3, and is guided and evenly distributed to the two inlets 5. The fertilizer enters the internal cavity of the discharge shell 4 through the two inlets 5. Inside the discharge shell 4, the high-speed rotating spiral blades 9 apply axial conveying force and radial stirring force to the falling fertilizer, continuously and forcibly pushing the fertilizer towards the discharge port 10 located at the lower end of the discharge shell 4. The fertilizer is discharged from the discharge port 10. When the first rotating rod 8 rotates, a pulley 12 fixed to it rotates accordingly. Through the meshing connection between the belt and the two pulleys 12, power is transmitted to another pulley 12 fixed to the second rotating rod 11, thereby driving the second rotating rod 11 to rotate within the discharge shell 4. The limiting ring 24 on the circumference of the second rotating rod 11 rotates stably within the limiting groove 23 of the sealing ring 19. The second rotating rod 11 drives two agitator blocks 13 fixedly connected to its circumferential surface to rotate synchronously. These two agitator blocks 13 are located inside or adjacent to the two feed inlets 5, respectively. In the field, the rotating agitator 13 continuously agitates, crushes, and clears the fertilizer at the feed inlet 5 and along the discharge path, effectively preventing the fertilizer from bridging, sticking, or clogging due to moisture or uneven particle size, ensuring that the discharge channel remains unobstructed. The concentrated fertilizer flow discharged from the discharge outlet 10 first impacts and passes through the diversion plate 15 fixed to the lower end of the discharge shell 4. Multiple diversion baffles 16 fixedly connected to the surface of the diversion plate 15 cut and disperse the concentrated fertilizer flow into multiple dispersed fine streams. The dispersed fertilizer falls onto the farmland below with a wider and more uniform distribution surface.

[0063] It should be noted that the connection and use of motor 7 in this solution are all existing technologies and will not be elaborated upon in this solution.

[0064] All standard parts used in this invention can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through the control unit. The control circuit of the control unit can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Therefore, the control method and circuit connection will not be explained in detail in this invention.

[0065] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A drone fertilization device, characterized in that, include: Body (1); Mounting plate (2), which is connected to the lower end of the body (1); Material box (3), which is fixedly connected to the lower end of mounting plate (2); Discharge shell (4), which is fixedly connected to the lower end of the material box (3); Two feed inlets (5) are respectively opened on the lower inner wall of the material box (3) and penetrate through the upper inner wall of the discharge shell (4); L-shaped fixing plate (6), which is fixedly connected to one side of the discharge shell (4); Motor (7), the motor (7) is fixedly connected to one side of the L-shaped fixing plate (6); The first rotating rod (8) is fixedly connected to the output shaft of the motor (7) and rotatably connected to the discharge shell (4); Two helical blades (9) are fixedly connected to the circumferential surface of the first rotating rod (8); The discharge port (10) is located at the lower end of the discharge shell (4); An anti-blocking component is provided inside the discharge shell (4) to prevent blockage at the feed inlet (5).

2. The drone fertilization device according to claim 1, characterized in that: The anti-blocking assembly includes a second rotating rod (11), a pulley (12), and an agitator (13). There are two pulleys (12) and two agitators (13). The second rotating rod (11) is rotatably connected to the discharge shell (4). One of the pulleys (12) is fixedly connected to the circumferential surface of the first rotating rod (8), and the other pulley (12) is fixedly connected to the circumferential surface of the second rotating rod (11). A belt is meshed between the two pulleys (12). The two agitators (13) are respectively fixedly connected to the circumferential surface of the second rotating rod (11) and are located in the two feed inlets (5).

3. The drone fertilization device according to claim 2, characterized in that: A hollow guide block (14) is fixedly connected to the lower inner wall of the material box (3), and the hollow guide block (14) is located between the two feed inlets (5).

4. The drone fertilization device according to claim 3, characterized in that: The lower end of the discharge shell (4) is fixedly connected to a flow divider plate (15), and a plurality of flow divider baffles (16) are fixedly connected to the surface of the flow divider plate (15).

5. The drone fertilization device according to claim 4, characterized in that: The upper end of the material box (3) is provided with a threaded feeding port (17), and a threaded plug (18) is threadedly connected inside the threaded feeding port (17).

6. The drone fertilization device according to claim 5, characterized in that: A sealing ring (19) is fixedly connected to one side of the discharge shell (4). A limiting groove (23) is opened in the sealing ring (19). A limiting ring (24) is fixedly connected to the circumferential surface of the second rotating rod (11). The limiting ring (24) is rotatably connected in the limiting groove (23).

7. The drone fertilization device according to claim 6, characterized in that: The lower end of the body (1) is provided with a plurality of screw holes (20), and the surface of the mounting plate (2) is provided with a plurality of mounting holes (21). A plurality of bolts (22) are threaded into the plurality of screw holes (20).