Pesticide spraying mechanism and plant protection unmanned aerial vehicle

Abstract

The utility model relates to the technical field of plant protection unmanned aerial vehicles, in particular to a pesticide spraying mechanism and a plant protection unmanned aerial vehicle. A material guide pipe penetrating through the bottom of the material storage barrel is arranged in the material storage barrel and communicates with a hose, and the hose communicates with the one-way air inlet pipe and the flow dividing pipe. A feeding hole is formed in the material guide pipe, the auger is rotationally arranged in the material guide pipe, and a motor for driving the auger to rotate is arranged on the material storage barrel. Two hollow shafts are symmetrically arranged in the mounting base, the flow dividing pipe is communicated with the hollow shafts, the hollow shafts are communicated with the pesticide spraying pipe, and a driving assembly for driving the pesticide spraying pipe to rotate is arranged in the mounting base. A hanging frame is arranged at the bottom of the unmanned aerial vehicle body and detachably connected with the storage barrel, and supporting frames are symmetrically arranged at the bottom of the hanging frame. A fixing plate is arranged on the hanging frame, the mounting base is arranged between the supporting frames on the two sides and slidably connected with the supporting frames, and a hydraulic cylinder B for driving the mounting base to ascend and descend is arranged on the fixing plate. The spreading width of the pesticide spraying pipe can be adjusted, pesticide is uniform, and the energy consumption of the whole machine is low.

Description

Technical Field

[0001] The utility model relates to the technical field of plant protection UAVs, in particular to a spraying mechanism and a plant protection UAV. Background Art

[0002] Plant protection UAV, also known as unmanned aerial vehicle, is an unmanned aircraft used for agricultural and forestry plant protection operations. This type of unmanned aircraft consists of three parts: a flight platform (fixed-wing, helicopter, multi-axis aircraft), a navigation flight control, and a spraying mechanism. It can spray pesticides, seeds, powders, etc. through ground remote control or navigation flight control.

[0003] The spraying structure of traditional plant protection drones is composed of a storage barrel, a liquid pump and a spray pipe. Some existing plant protection drones also add a stirring mechanism in the storage barrel to make the mixture in the storage barrel highly uniform, but this invisibly increases the power-consuming components, resulting in the drone's endurance being affected. At the same time, the existing drone spray rods have a fixed length and a fixed spray width, and cannot be quickly adjusted in irregular areas. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and propose a spraying mechanism and a plant protection UAV.

[0005] The technical solution of the utility model: On the one hand, the utility model proposes a spraying mechanism, including a storage barrel, an auger and a mounting seat.

[0006] The storage barrel is provided with a feeding pipe connected to the inside thereof, and a guide pipe penetrating the bottom thereof is provided inside the storage barrel, and the bottom of the guide pipe is connected to a hose, and the hose is connected to a one-way air inlet pipe and a diverter pipe. A feed port is provided on the guide pipe, and the bottom of the feed port is flush with the upper surface of the bottom of the storage barrel. The auger is rotatably arranged in the guide pipe and is in clearance with the inner wall thereof, and a motor for driving the auger to rotate is provided on the storage barrel.

[0007] Two hollow shafts are symmetrically and rotatably arranged on the inner side of the mounting seat. The two ends of the diversion pipe are respectively inserted into the corresponding hollow shafts and rotatably connected thereto. The hollow shafts are connected to the spray pipe, which is rotatably connected to the mounting seat, and a driving component for driving the spray pipe to rotate is arranged in the mounting seat.

[0008] Preferably, a controller and an alarm are provided on the storage barrel, the controller is electrically connected to the alarm, and a liquid level sensor is provided in the storage barrel, and the liquid level sensor is electrically connected to the controller.

[0009] Preferably, the driving assembly includes a hydraulic cylinder A. External toothed rings are arranged on both sides of the hollow shafts, a rack is slidably arranged in the mounting seat, the rack is located between the external toothed rings on both sides, and the grooves on both sides of the rack are respectively meshed and connected with the external toothed rings on the corresponding sides, the hydraulic cylinder A is arranged on the mounting seat, and the hydraulic cylinder A drives the connected rack.

[0010] Preferably, a slide bar is further provided in the mounting seat, and the slide bar passes through the rack and is slidably connected thereto.

[0011] On the other hand, the utility model also provides a plant protection UAV including the above-mentioned spraying mechanism, and also includes a UAV body.

[0012] A hanger is arranged at the bottom of the drone body, and the storage barrel is detachably connected to the hanger, and a support frame is symmetrically arranged at the bottom of the hanger. A fixing plate is arranged on the hanger, and a mounting seat is arranged between the support frames on both sides and slidably connected thereto, and the mounting seat is located below the fixing plate, and a hydraulic cylinder B for driving the mounting seat to rise and fall is arranged on the fixing plate.

[0013] Preferably, the support frame includes a support plate and a connecting rod, and two ends of the connecting rod are respectively connected to the hanging frame and the support plate.

[0014] Preferably, a remote control terminal is also included. A high-definition camera is arranged on the drone body, and a wireless transceiver is arranged inside the drone body, and the drone body is remotely connected to the remote control terminal via the wireless transceiver.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] By setting a material guide pipe and an auger in the material guide pipe, the raw materials in the storage barrel can be quickly stirred when the auger rotates in the reverse direction, so that the upper and lower layers of medicine are highly uniform. When the auger rotates forward, the auger and the material guide pipe cooperate to push the medicine liquid. This structure integrates stirring and liquid pump feeding, saves the energy consumption of the whole machine, and effectively improves the endurance of the UAV. In addition, by setting two spray pipes with adjustable opening angles, the change of the spray pipe opening angle directly affects the spray width, the structure has high stability, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is the structural diagram of the spraying mechanism;

[0019] Figure 3 This is the internal structure diagram of the storage barrel;

[0020] Figure 4 This is a structural diagram of the drive component.

[0021] Figure numerals: 1. Storage barrel; 2. Feeding pipe; 3. Material guide pipe; 301. Feed port; 4. Hose; 5. One-way air inlet pipe; 6. Diverter pipe; 7. Auger; 8. Motor; 9. Mounting seat; 10. Hollow shaft; 11. Drive assembly; 111. External gear ring; 112. Rack; 113. Hydraulic cylinder A; 114. Slide rod; 12. Spraying pipe; 13. UAV body; 14. Bracket; 15. Support frame; 16. Fixing plate; 17. Hydraulic cylinder B. DETAILED DESCRIPTION

[0022] Embodiment 1

[0023] like Figure 1-Figure 4 As shown, a medicine spraying mechanism proposed by the utility model includes a material storage barrel 1, an auger 7 and a mounting seat 9.

[0024] The material storage barrel 1 is provided with a feeding pipe 2 connected to the inside thereof, and a material guide pipe 3 penetrating the bottom thereof is provided inside the material storage barrel 1, and the bottom of the material guide pipe 3 is connected to a hose 4, and the hose 4 is connected to a one-way air inlet pipe 5 and a diverter pipe 6. A feed port 301 is provided on the material guide pipe 3, and the bottom of the feed port 301 is flush with the upper surface of the bottom of the material storage barrel 1. An auger 7 is rotatably provided in the material guide pipe 3 and is gap-matched with the inner wall thereof, and a motor 8 for driving the auger 7 to rotate is provided on the material storage barrel 1.

[0025] Two hollow shafts 10 are symmetrically and rotatably arranged inside the mounting seat 9. The two ends of the shunt pipe 6 are respectively inserted into the corresponding hollow shafts 10 and rotatably connected thereto. The hollow shaft 10 is connected to the spraying pipe 12, which is rotatably connected to the mounting seat 9. A driving assembly 11 for driving the spraying pipe 12 to rotate is arranged inside the mounting seat 9. The driving assembly 11 includes a hydraulic cylinder A113. External toothed rings 111 are arranged on both hollow shafts 10. A rack 112 is slidably arranged inside the mounting seat 9. The rack 112 is located between the external toothed rings 111 on both sides, and the grooves on both sides of the rack 112 are respectively meshed and connected with the external toothed rings 111 on the corresponding sides. The hydraulic cylinder A113 is arranged on the mounting seat 9, and the hydraulic cylinder A113 drives and connects the rack 112. A sliding rod 114 is also arranged inside the mounting seat 9. The sliding rod 114 passes through the rack 112 and is slidably connected thereto. A controller and an alarm are arranged on the material storage barrel 1, and the controller is electrically connected to the alarm. A liquid level sensor is arranged in the material storage barrel 1, and the liquid level sensor is electrically connected to the controller.

[0026] In this embodiment, when adjusting the spraying width of the spray pipes 12 on both sides, the rack 112 is pushed and pulled by the hydraulic cylinder A113, and the rack 112 is used to drive the outer gear rings 111 on both sides and the spray pipe 12 to rotate, thereby realizing the adjustment of the distance between the far ends of the spray pipes on both sides; after adding medicine and water into the storage barrel 1, the motor 8 drives the auger 7 to rotate, and the lower layer of medicine and water enter the guide pipe 3 along the feed port 301 and surge up under the drive of the auger 7. The upper and lower layers of raw materials quickly change positions and merge, so that the medicine liquid always maintains a high degree of uniformity. During the spraying process, the motor 8 drives the auger 7 to rotate in the opposite direction, so that the medicine liquid enters the spray pipe 12 along the guide pipe 3, the hose 4, the diverter pipe 6 and the hollow shaft 9, and finally the medicine liquid is sprayed out from the nozzle at the bottom of the spray pipe 12. It has a simple structure, is easy to operate, and has low energy consumption.

[0027] Embodiment 2

[0028] like Figure 1-Figure 3 As shown, a crop protection drone proposed by the utility model includes the spraying mechanism in the first embodiment, and also includes a drone body 13. A hanger 14 is arranged at the bottom of the drone body 13, and the storage barrel 1 is detachably connected to the hanger 14. A support frame 15 is symmetrically arranged at the bottom of the hanger 14. A fixing plate 16 is arranged on the hanger 14, and a mounting seat 9 is arranged between the support frames 15 on both sides and is slidably connected thereto, and the mounting seat 9 is located below the fixing plate 16, and a hydraulic cylinder B17 for driving the mounting seat 9 to rise and fall is arranged on the fixing plate 16. The support frame 15 includes a support plate and a connecting rod, and the two ends of the connecting rod are respectively connected to the hanger 14 and the support plate. A remote control terminal is also included. A high-definition camera is arranged on the drone body 13, and a wireless transceiver is arranged in the drone body 13. The drone body 13 is remotely connected to the remote control terminal through the wireless transceiver.

[0029] In this embodiment, the remote control terminal is connected to the drone body 13, and the flight path of the drone and the opening range of the spray pipe 12 are controlled by remote control. In actual operation, before the drone body 13 takes off, the spray pipes on both sides are close together and located between the support frames 15 on both sides. When the drone body 13 takes off to a certain height, the hydraulic cylinder B17 presses down the mounting seat 9 to make it slide down, so that the spray pipe 12 extends out from under the support frame 15, and then adjusts the opening angle of the spray pipes 12 on both sides according to the actual spraying range. Before the drone body 13 falls, the spray pipes 12 on both sides are first close together and reset, and then rise with the mounting seat 9 to avoid the spray pipe 12 from contacting the bottom surface. The structure has high stability and is simple and convenient to operate.

[0030] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A spraying mechanism, characterized in that: It comprises a material storage barrel (1), an auger (7) and a mounting seat (9); A feeding pipe (2) is provided on the material storage barrel (1) and is connected to the interior thereof; a material guide pipe (3) is provided inside the material storage barrel (1) and passes through the bottom thereof; the bottom of the material guide pipe (3) is connected to a hose (4); the hose (4) is connected to a one-way air inlet pipe (5) and a flow divider (6); a material feed port (301) is provided on the material guide pipe (3); the bottom of the material feed port (301) is flush with the upper surface of the bottom of the material storage barrel (1); an auger (7) is rotatably provided in the material guide pipe (3) and is clearance-matched with the inner wall thereof; a motor (8) is provided on the material storage barrel (1) for driving the auger (7) to rotate; Two hollow shafts (10) are symmetrically and rotatably arranged inside the mounting seat (9), and the two ends of the shunt pipe (6) are respectively inserted into the corresponding hollow shafts (10) and rotatably connected thereto. The hollow shaft (10) is connected to a spraying pipe (12), and the spraying pipe (12) is rotatably connected to the mounting seat (9). A driving assembly (11) for driving the spraying pipe (12) to rotate is arranged inside the mounting seat (9).

2. A spraying mechanism according to claim 1, characterized in that: A controller and an alarm are arranged on the material storage barrel (1), the controller is electrically connected to the alarm, and a liquid level sensor is arranged in the material storage barrel (1), the liquid level sensor is electrically connected to the controller.

3. A spraying mechanism according to claim 1, characterized in that: The driving assembly (11) comprises a hydraulic cylinder A (113); external toothed rings (111) are arranged on both sides of the hollow shafts (10); a rack (112) is slidably arranged in a mounting seat (9); the rack (112) is located between the external toothed rings (111) on both sides; and the grooves on both sides of the rack (112) are respectively meshed and connected with the external toothed rings (111) on the corresponding sides; the hydraulic cylinder A (113) is arranged on the mounting seat (9); and the hydraulic cylinder A (113) drives the connected rack (112).

4. A spraying mechanism according to claim 3, characterized in that: A slide bar (114) is also provided in the mounting seat (9), and the slide bar (114) passes through the rack (112) and is slidably connected thereto.

5. A plant protection drone, comprising the spraying mechanism according to any one of claims 1 to 4, characterized in that: Also includes a drone body (13); A hanging bracket (14) is arranged at the bottom of the drone body (13), the storage barrel (1) is detachably connected to the hanging bracket (14), and a supporting bracket (15) is symmetrically arranged at the bottom of the hanging bracket (14); a fixing plate (16) is arranged on the hanging bracket (14), and a mounting seat (9) is arranged between the supporting brackets (15) on both sides and is slidably connected thereto, and the mounting seat (9) is located below the fixing plate (16), and a hydraulic cylinder B (17) for driving the mounting seat (9) to rise and fall is arranged on the fixing plate (16).

6. The plant protection drone according to claim 5, characterized in that: The support frame (15) comprises a support plate and a connecting rod, and two ends of the connecting rod are respectively connected to the hanging frame (14) and the support plate.

7. The plant protection drone according to claim 6, characterized in that: It also includes a remote control terminal; a high-definition camera is arranged on the drone body (13), a wireless transceiver is arranged inside the drone body (13), and the drone body (13) is remotely connected to the remote control terminal via the wireless transceiver.

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