Plant protection unmanned aerial vehicle sowing device with precise sowing function

By using threaded rods and motor-driven gear transmission in the seeding device of the plant protection drone, the tilt adjustment of the discharge plate and the uniform slide of the seeds are achieved. The combination of the roller and the feed limiting plate is solved, and the problem of incomplete seeding and blockage of seeds is achieved, achieving efficient and accurate seeding effects.

CN222905864UActive Publication Date: 2025-05-27CHINA TOBACCO GENERAL CORP JIANGXI CORP +2
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Patent Information

Application Number
CN202422400434.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-05-27
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

When the existing precise sowing plant protection drone is sown, the seeds at the bottom cannot be completely sown when they are placed in the feeding mechanism, which requires manual cleaning, and there is a problem of blockage and inaccurate quantification during the feeding process, which affects the sowing efficiency.

Method used

Through the combination of threaded rod, first motor, first gear, second gear, discharge plate and partition, the inclination adjustment of the discharge plate is realized, so that the seeds can slide evenly, increase the load capacity, and through the roller, plug hole, plug plate and limit plate, the seeds are quantitatively separated and the seeds are flexibly adjusted to prevent clogging.

Benefits of technology

The seeds are fully used, saving manpower, improving sowing efficiency, preventing blockage, ensuring accurate seeding quantity, and improving the overall speed of sowing work.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222905864U_ABST
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Abstract

The plant protection unmanned aerial vehicle sowing device comprises a machine body, a discharging mechanism is arranged at the top of the machine body, a first shell is fixedly connected to the top of the machine body, a partition plate is fixedly connected to the inner wall of the left side of the first shell, and a discharging plate is arranged on the right side of the partition plate; the front and rear ends of the left side of the discharging plate are rotationally connected with the front and rear inner walls of the first shell, a threaded rod is arranged in the middle of the bottom of the discharging plate, and a first through hole is formed in the middle of the right side wall of the first shell. According to the device, through the threaded rod, the first motor, the first gear, the second gear, the discharging plate and the partition plate, the motor drives the second gear to rotate, the second gear drives the first gear to conduct meshing transmission, the rotation of the first gear achieves entering and exiting of the threaded rod at the bottom of the discharging plate, adjustment of the inclination angle of the discharging plate is achieved, and seeds slide to the left side; according to the unmanned aerial vehicle, the seed bearing capacity of the unmanned aerial vehicle is increased, all seeds at the bottom of the discharging mechanism can be used up, manpower is saved, and efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of spreading devices, and in particular to a precise spreading plant protection drone spreading device. Background Art

[0002] Drones for precision seeding belong to the category of unmanned agriculture. Unmanned agriculture is an agricultural production process that is fully operated and controlled by agricultural drones, unmanned vehicles and satellite positioning systems. People only need to make judgments and process the pictures and data transmitted by drones. It belongs to the real full automation and modernization of agriculture; drones for precision seeding have taken the field of plant protection of drones to a new level. Farmers can complete the work of transplanters without going to the fields. They can easily sow 150 acres a day, and can also achieve rice growth in rows, effectively improve the yield and quality, and completely break the traditional operation mode. It has changed the traditional farming method, eliminating the processes of raising seedlings, transplanting seedlings, transplanting seedlings, and returning to green, saving labor and labor, precise sowing, adjustable row spacing, no occupation of seedling fields, and shortening the rice growth period. The arm hangs 5-6 seed bins, can carry 6kg, and can sow 100-200 acres a day, greatly reducing labor costs and significantly improving economic benefits.

[0003] At present, when precision-seeding plant protection drones are sowing, when placing seeds into the discharge mechanism, the seeds at the bottom cannot be sown completely, and manual cleaning is required at a later stage, which reduces efficiency, and blockages may occur during the discharge process. When sowing, the quantification may not be accurate enough, or the sowing amount may need to be adjusted in a complicated manner, which is too inefficient and affects the overall speed of the sowing work. Summary of the invention

[0004] The utility model aims to provide a plant protection drone sowing device with precise sowing, through a threaded rod, a first motor, a first gear, a second gear, a discharge plate and a partition, the motor drives the second gear to rotate, the second gear drives the first gear to mesh and transmit, the rotation of the first gear realizes the entry and exit of the threaded rod at the bottom of the discharge plate, and the adjustment of the inclination angle of the discharge plate is realized, so that the seeds slide to the left side, increasing the carrying capacity of the drone seeds, and all the seeds at the bottom of the discharge mechanism can be used up, saving manpower and improving efficiency; the evenly arranged partition on the left side separates the seeds and drops them evenly, preventing blockage and improving efficiency, and through the roller, the plug hole, the plug plate and the limiting plate, a plurality of evenly arranged plug holes are opened on the circumferential surface of the roller, the plug holes have the plug plate for flexible plugging and disassembly, the limiting plate on the plug plate can quantitatively separate the fallen seeds, and the density of the plug plate can change the seeding amount according to needs, thereby improving work efficiency and speed.

[0005] The utility model also provides a pesticide spraying device for precise sowing of a plant protection unmanned aerial vehicle, which comprises a machine body. A feeding mechanism is arranged at the top of the machine body. The feeding mechanism includes a first shell, a partition board, a feeding plate, a first gear, a first motor and a second gear. The first shell is fixedly connected to the top of the machine body. The left inner wall of the first shell is fixedly connected with the partition board. A feeding plate is arranged on the right side of the partition board. The front and rear ends of the left side of the feeding plate are rotationally connected to the front and rear inner walls of the first shell. A threaded rod is arranged at the middle position of the bottom of the feeding plate. A first through hole is formed in the middle of the right side wall of the first shell, and the threaded rod is inserted into the first through hole. A first gear is arranged at the middle of the outer wall of the right side of the first shell. A second gear is meshed and driven on the front side of the first gear. A first motor is fixedly connected to the middle of the right side of the second gear. A second threaded hole is formed in the middle of the first gear, and the threaded rod is in threaded connection with the second threaded hole. Connecting rods are fixedly connected to the front and rear sides of the middle of the bottom end of the machine body. A material control mechanism is rotationally connected to the bottom ends of the connecting rods. The material control mechanism includes a roller, a material limiting plate, a plugging rod, a second through hole, a threaded hole, a screw and a plugging hole. The roller is rotationally connected to the inner sides of the two connecting rods. Plugging holes are formed in the circumference of the roller. Second through holes are formed on the left and right sides of the plugging holes and are located inside the roller. A plugging rod is arranged above the plugging hole. The material limiting plate is fixedly connected to the top of the plugging rod. Threaded holes are formed on the left and right sides of the plugging rod. Screws are arranged above the threaded holes. The plugging rod is inserted into the plugging hole, and the screws penetrate through the second through holes and are in threaded connection with the threaded holes, so as to fixedly connect the material limiting plate and the roller together and facilitate disassembly at the same time.

[0006] As an improvement of the utility model, a second motor is fixedly connected to the outer side of the front connecting rod, and the driving end of the second motor is fixedly connected to the front end of the roller. The second motor controls the rotation of the roller.

[0007] As a further improvement of the utility model, a second shell is fixedly connected to the bottom edge of the machine body. A sowing port is formed at the bottom end of the second shell, and seeds fall out from the sowing port.

[0008] As an improvement of the utility model, a position control plate is fixedly connected to the left inner wall of the second shell, and the number of the position control plates is two.

[0009] As a further improvement of the utility model, machine arms are fixedly connected to the four corners of the side wall of the machine body, wings are arranged at the other ends of the machine arms, and support legs are fixedly connected to the front and rear side walls of the bottom of the machine body. When the unmanned aerial vehicle does not work, the support legs are used for ground support to protect the sowing device.

[0010] As a further improvement of the present utility model, the feeding mechanism further includes a first limiting rod, a second limiting rod, a third limiting rod and a limiting block. The middle part on the left side of the first gear is rotatably connected to the second limiting rod, and the other end of the second limiting rod is fixedly connected to the outer wall of the first housing. The middle part on the left side of the second gear is rotatably connected to the first limiting rod, and the other end of the first limiting rod is fixedly connected to the outer wall of the first housing. The bottom end of the first motor is fixedly connected to the third limiting rod, and the other end of the third limiting rod is fixedly connected to the top of the machine body. The right end of the threaded rod is fixedly connected to the third limiting rod, and a limiting block is fixedly connected to the right side of the top of the machine body. A limiting groove is formed in the middle part on the left side of the limiting block, and the third limiting rod is inserted into the limiting groove to prevent the threaded rod from rotating together with the first gear without moving forward.

[0011] As a further improvement of the present utility model, the number of the insertion holes is multiple and they are uniformly arranged on the drum, the number of the threaded holes is multiple, and the number of the screws is multiple.

[0012] As a further improvement of the present utility model, the insertion hole is T-shaped, and the insertion rod is T-shaped for firm insertion.

[0013] In the present utility model, through the threaded rod, the first motor, the first gear, the second gear, the feeding plate and the partition plate, the motor drives the second gear to rotate, the second gear drives the first gear to engage and transmit, the rotation of the first gear realizes the advancement and retraction of the threaded rod at the bottom of the feeding plate, realizes the adjustment of the inclination angle of the feeding plate, enables the seeds to slide to the left, increases the carrying capacity of the seeds of the unmanned aerial vehicle, and can also use up all the seeds at the bottom of the feeding mechanism, saving manpower and improving efficiency; the uniformly arranged partition plates on the left side separate the seeds and make them fall evenly downward to prevent blockage and improve efficiency. Moreover, through the drum, the insertion holes, the insertion plates and the material limiting plates, a plurality of uniformly arranged insertion holes are formed on the circumferential surface of the drum. The insertion plates can be flexibly inserted and removed into the insertion holes, and the material limiting plates on the insertion plates can quantitatively separate the falling seeds. The density of the insertion plates can be changed according to needs to change the seeding amount of the seeds, improving the working efficiency and speed. Description of the Drawings

[0014] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0015] Figure 1 It is a three-dimensional internal structure diagram of a precision spraying plant protection unmanned aerial vehicle spraying device of the present utility model;

[0016] Figure 2 It is an enlarged structure diagram of the feeding mechanism of a precision spraying plant protection unmanned aerial vehicle spraying device of the present utility model;

[0017] Figure 3Structure enlarged view of the material control mechanism of a precise spraying plant protection UAV spraying device of the present utility model;

[0018] Figure 4 External overall three-dimensional structure diagram of a precise spraying plant protection UAV spraying device of the present utility model;

[0019] Figure 5 Partial display of the threaded rod of a precise spraying plant protection UAV spraying device of the present utility model;

[0020] Reference numerals:

[0021] 1, airframe; 2, material feeding mechanism; 201, first housing; 202, partition board; 203, material feeding plate; 204, threaded rod; 205, first gear; 206, first motor; 207, second gear; 208, first limiting rod; 209, second limiting rod; 210, third limiting rod; 211, limiting block; 3, material control mechanism; 301, roller; 302, material limiting plate; 303, inserting rod; 304, threaded hole; 305, second through hole; 306, screw; 307, inserting hole; 4, connecting rod; 5, second motor; 6, position control board; 7, second housing; 8, arm; 9, wing; 10, sowing port; 11, support leg. Detailed implementation manners

[0022] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be construed as a limitation on the protection scope of the present utility model.

[0023] As Figures 1 to 5 As shown, a precise spraying plant protection UAV spraying device of the present utility model includes an airframe 1. The UAV composed of the airframe 1, the arm 8 and the wing 9 is an existing plant protection UAV on the market. A material feeding mechanism 2 is arranged on the top of the airframe 1. The material feeding mechanism 2 includes a first housing 201, a partition board 202, a material feeding plate 203, a first gear 205, a first motor 206 and a second gear 207.

[0024] In the present utility model, a first housing 201 is fixedly connected to the top of the machine body 1. A partition 202 is fixedly connected to the left inner wall of the first housing 201. The partition 202 is used to prevent seeds from getting blocked when sliding downwards. A feeding plate 203 is arranged on the right side of the partition 202. The front and rear ends of the left side of the feeding plate 203 are rotatably connected to the front and rear inner walls of the first housing 201. A threaded rod 204 is arranged at the middle position of the bottom of the feeding plate 203. The threaded rod 204 is used to tilt and lift the feeding plate 203 to ensure that the seeds at the bottom of the plate fall out completely. A first through hole is opened in the middle of the right side wall of the first housing 201. The threaded rod 204 is inserted into the first through hole. A first gear 205 is arranged at the middle of the outer wall of the right side of the first housing 201. A second gear 207 is meshed and driven on the front side of the first gear 205. A first motor 206 is fixedly connected to the middle of the right side of the second gear 207. A second threaded hole is opened in the middle of the first gear 205. The threaded rod 204 is threadedly connected to the second threaded hole.

[0025] In the present utility model, connecting rods 4 are fixedly connected to the front and rear sides of the middle part of the bottom end of the machine body 1. A material control mechanism 3 is rotatably connected to the bottom ends of the connecting rods 4. The material control mechanism 3 includes a roller 301, a material limiting plate 302, a plugging rod 303, a second through hole 305, a threaded hole 304, a screw 306 and a plugging hole 307. The roller 301 is rotatably connected to the inner sides of the two connecting rods 4. Plugging holes 307 are opened on the circumference of the roller 301. Second through holes 305 are opened on the left and right sides of the plugging holes 307 and are located inside the roller 301. A plugging rod 303 is arranged above the plugging holes 307. A material limiting plate 302 is fixedly connected to the top of the plugging rod 303. Threaded holes 304 are opened on the left and right sides of the plugging rod 303. Screws 306 are arranged above the threaded holes 304. The plugging rod 303 is inserted into the plugging holes 307. The screws 306 penetrate through the second through holes 305 and are threadedly connected to the threaded holes 304.

[0026] In the present utility model, a second motor 5 is fixedly connected to the outside of the front connecting rod 4. The driving end of the second motor 5 is fixedly connected to the front end of the roller 301.

[0027] In the present utility model, a second housing 7 is fixedly connected to the bottom edge of the machine body 1. A sowing opening 10 is opened at the bottom end of the second housing 7. The sowing opening 10 is the place where the seeds leak out.

[0028] In the present utility model, two position control plates 6 are fixedly connected to the left inner wall of the second housing 7.

[0029] Within the present utility model, the four corners of the side wall of the body 1 are fixedly connected with machine arms 8, and the other ends of the machine arms 8 are provided with wings 9. The front and rear side walls of the bottom of the body 1 are fixedly connected with support legs 11, and the support legs 11 are used to support the sowing device when the drone is not working, preventing wear to the surface.

[0030] Within the present utility model, the other end of the first limiting rod 208 is fixedly connected to the outer wall of the first housing 201. The bottom end of the first motor 206 is fixedly connected with a third limiting rod, and the other end of the third limiting rod is fixedly connected to the top of the body 1. The right end of the threaded rod 204 is fixedly connected with a third limiting rod 210, and a limiting block 211 is fixedly connected to the right side of the top of the body 1. A limiting groove is formed in the middle of the left side of the limiting block 211, and the third limiting rod 210 is inserted into the limiting groove.

[0031] Within the present utility model, the number of insertion holes 307 is multiple, and they are evenly arranged on the drum 301. The number of threaded holes 304 is multiple, and the number of screws 306 is multiple.

[0032] Within the present utility model, the feeding mechanism 2 further includes a first limiting rod 208, a second limiting rod 209, a third limiting rod 210, and a limiting block 211. The middle of the left side of the first gear 205 is rotatably connected with a second limiting rod 209, and the other end of the second limiting rod 209 is fixedly connected to the outer wall of the first housing 201. The middle of the left side of the second gear 207 is rotatably connected with a first limiting rod 208.

[0033] Within the present utility model, the insertion hole 307 is T-shaped, and the insertion rod 303 is T-shaped.

[0034] Within the present utility model, seeds are poured from above the feeding mechanism 2, the feeding plate 203 slowly tilts and stands up, and falls into the interior of the second housing 7 at the bottom of the body 1 through the gap between the left partition 202 and the partition 202. It slides down between the two positioning plates 6 of the second housing 7. The control mechanism 3 rotates to drive the limiting plate 302 to drop the seeds falling from the left in portions from the sowing opening. The wings 9 drive the entire device to take off. After it needs to land on the ground, the support legs 11 support on the ground.

[0035] The above has described the embodiments of the present utility model in detail with reference to the drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can be made without departing from the gist of the present utility model.

Claims

1. A precision-seeding plant protection drone sowing device, comprising a body, characterized in that: A discharge mechanism is provided at the top of the body, and the discharge mechanism includes a first shell, a partition, a discharge plate, a first gear, a first motor and a second gear. The top of the body is fixedly connected to the first shell, the left inner wall of the first shell is fixedly connected to the partition, and the right side of the partition is provided with a discharge plate, the front and rear ends of the left side of the discharge plate are rotatably connected to the front and rear inner walls of the first shell, a threaded rod is provided at the middle position of the bottom of the discharge plate, a first through hole is provided in the middle of the right side wall of the first shell, and the first through hole is plugged into the threaded rod, a first gear is provided in the middle of the right outer wall of the first shell, the front side of the first gear is meshed with the second gear, the middle part of the right side of the second gear is fixedly connected to the first motor, and the middle part of the first gear is provided with a second threaded hole , the threaded rod is threadedly connected to the second threaded hole; the front and rear sides of the middle part of the bottom end of the body are fixedly connected with a connecting rod, the bottom end of the connecting rod is rotatably connected to a material control mechanism, and the material control mechanism includes a roller, a limiting plate, a plug-in rod, a second through hole, a threaded hole, a screw and a plug-in hole, the inner sides of the two connecting rods are rotatably connected to the roller, the circumference of the roller is provided with a plug-in hole, the left and right sides of the plug-in hole are provided with a second through hole, the second through hole is located inside the roller, a plug-in rod is arranged above the plug-in hole, the top of the plug-in rod is fixedly connected to the limiting plate, the left and right sides of the plug-in rod are provided with threaded holes, a screw is arranged above the threaded hole, the plug-in rod is plugged into the plug-in hole, and the screw passes through the second through hole and is threadedly connected to the threaded hole.

2. The precision spreading plant protection drone spreading device according to claim 1, characterized in that: A second motor is fixedly connected to the outer side of the front connecting rod, and a driving end of the second motor is fixedly connected to the front end of the drum.

3. The precision spreading plant protection drone spreading device according to claim 2, characterized in that: A second shell is fixedly connected to the bottom edge of the machine body, and a sowing opening is provided at the bottom end of the second shell.

4. The precision spreading plant protection drone spreading device according to claim 3, characterized in that: A position control plate is fixedly connected to the left inner wall of the second shell, and the number of the position control plates is two.

5. The precision spreading plant protection drone spreading device according to claim 4, characterized in that: The four corners of the side wall of the machine body are fixedly connected with organic arms, the other end of the organic arms is provided with organic wings, and the front and rear side walls of the bottom of the machine body are fixedly connected with supporting legs.

6. The precision spreading plant protection drone spreading device according to claim 1, characterized in that: The discharge mechanism also includes a first limit rod, a second limit rod, a third limit rod and a limit block. The second limit rod is rotatably connected to the middle left side of the first gear, and the other end of the second limit rod is fixedly connected to the outer wall of the first shell. The first limit rod is rotatably connected to the middle left side of the second gear, and the other end of the first limit rod is fixedly connected to the outer wall of the first shell. The bottom end of the first motor is fixedly connected to the third limit rod, and the other end of the third limit rod is fixedly connected to the top of the body. The right end of the threaded rod is fixedly connected to the third limit rod, and the top right side of the body is fixedly connected to a limit block. A limit slot is provided in the middle left side of the limit block, and the third limit rod is plugged into the limit slot.

7. The precision spreading plant protection drone spreading device according to claim 1, characterized in that: The number of the plugging holes is several and they are evenly arranged on the drum, and the number of the threaded holes is several.

8. The precision spreading plant protection drone spreading device according to claim 7, characterized in that: The plug-in hole is T-shaped, and the plug-in rod is T-shaped.