Agricultural plant protection drone

Abstract

The invention discloses an agricultural plant protection drone, which relates to the technical field of drones, and comprises a drone body and a medicine box arranged at the bottom of the drone body, wherein a plurality of mounting plates 1 are evenly fixedly connected to the outer wall of the top of the medicine box, a medicine delivery mechanism is arranged in the medicine box, and a plurality of drop racks are arranged at the bottom of the medicine box; a driving shaft is rotatably arranged on the top surface of the mounting plate 1, a gear 2 is fixedly connected to the top of the driving shaft, and a driving mechanism is arranged at the bottom of the driving shaft; a short shaft is rotatably arranged on the top surface of the mounting plate 1, a gear 1 is fixedly connected to the bottom of the short shaft, and a folding mechanism is arranged at the top of the short shaft; a transmission mechanism is arranged on the movable end of an electric push rod on the top surface of the mounting plate 1; the invention facilitates the use of the folding mechanism first by using the transmission mechanism, thereby realizing the folding of the drop rack, thereby facilitating the drone body to spray pesticides on crops; then the driving mechanism is operated to facilitate the reciprocating movement of the drug guide tube 1, thereby facilitating the uniform spraying of the drug solution on the crops, which is beneficial to the uniform spraying of pesticides on the crops.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to an agricultural plant protection UAV. Background Art

[0002] Plant protection drones are agricultural drones. Agricultural drones are unmanned aerial vehicles used in agriculture to help increase crop yields and monitor crop growth. Its sensors and digital imaging capabilities can help farmers better understand their fields and help increase crop yields and farm efficiency. This type of drone uses ground remote control or navigation flight control to carry out spraying operations. It can spray pesticides, seeds, powders, etc. Plant protection drones have the advantages of low operating altitude, less drift, and can hover in the air. There is no need for a dedicated take-off and landing airport. The downward airflow generated by the rotor helps increase the penetration of the fog flow into crops, with high prevention and control effects. It can be remotely controlled from a long distance, and spraying operators avoid the risk of exposure to pesticides, which improves the safety of spraying operations. Many advantages;

[0003] When the existing plant protection UAV is in use, since the plant protection UAV needs to be supported, a landing frame is provided at the bottom of the plant protection UAV, and the landing frame is fixed on the bottom of the plant protection UAV. When spraying pesticides on crops, the plant protection UAV needs to fly low, which causes the landing frame to be caught by the crops, making the plant protection UAV unable to fly, and even causing the plant protection UAV to fall to the ground and be damaged. At the same time, when the existing plant protection UAV sprays pesticides, the spraying port of the pesticide is fixed, which may easily cause some crops not to be sprayed with pesticides, thereby failing to spray the crops evenly with pesticides. Summary of the invention

[0004] The present invention proposes an agricultural plant protection drone to solve the problems in the background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An agricultural plant protection drone, comprising a drone body and a medicine box arranged at the bottom of the drone body, a plurality of mounting plates 1 being evenly fixed to the outer wall of the top of the medicine box, a medicine delivery mechanism being arranged in the medicine box, a plurality of spraying mechanisms being arranged on the outer wall of the medicine box, and a plurality of drop racks corresponding to the mounting plates 1 being rotatably arranged at the bottom of the medicine box through a hinge;

[0007] A driving shaft is rotatably provided on the top surface of each mounting plate, a second gear is fixedly connected to the top of the driving shaft, and a driving mechanism acting on the spraying mechanism is provided at the bottom of the driving shaft;

[0008] A short shaft is rotatably provided on the top surface of each of the mounting plates, a gear is fixedly connected to the outer wall at the bottom of the short shaft, and a stowage mechanism acting on the drop frame is provided on the outer wall at the top of the short shaft;

[0009] An electric push rod is installed on the top surface of each mounting plate 1, and the movable end of the electric push rod is provided with a transmission mechanism which first acts on gear 1 and then acts on gear 2 through mounting plate 2.

[0010] Preferably, the transmission mechanism includes an elongated frame arranged on one side of the second mounting plate, a movable block slidably arranged in the elongated frame and an extrusion spring, and the extrusion spring is located at an end away from the fixed end of the electric push rod, and a bar tooth plate 1 meshing with gear 1 is fixedly connected to the movable block, and a bar tooth plate 2 matching with gear 2 is fixedly connected to the elongated frame.

[0011] Preferably, the drug delivery mechanism comprises a water pump disposed in the medicine box, a drug delivery end of the water pump is provided with a second drug guide tube, and a top of the second drug guide tube is provided with a circular cylinder.

[0012] Preferably, the medicine spraying mechanism includes a medicine guide tube slidably arranged on the outer wall of the medicine box, a medicine outlet pipe evenly arranged on the bottom of the medicine guide tube, and a spray head arranged at the bottom of the medicine outlet pipe. A connecting head is provided at the inner end of the medicine guide tube, and the connecting head is connected to the circular cylinder through a hose.

[0013] Preferably, a push plate is fixedly connected to the outer wall of an inner end of the drug guiding tube, and the push plate is slidably arranged with the bottom of the medicine box.

[0014] Preferably, the driving mechanism comprises a circular plate fixedly connected to the bottom of the driving shaft, a short column arranged at the edge of the bottom surface of the circular plate and an annular frame slidably arranged on the outer wall of the short column, a connecting frame is fixedly connected to the annular frame, and one end of the connecting frame is fixedly connected to the drug guiding tube.

[0015] Preferably, the hinged member comprises a hinged seat arranged on the bottom of the medicine box, and the drop frame is rotatably arranged in the hinged seat through a torsion spring shaft.

[0016] Preferably, the retracting mechanism includes a reel fixedly connected to the outer wall of the short shaft and pulleys arranged on the top and bottom surfaces of a mounting plate, a connecting plate is fixedly connected to the landing frame, a traction rope is fixedly connected to the connecting plate, and one end of the traction rope passes through each pulley and is fixedly connected to the reel.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] The present invention facilitates the use of a transmission mechanism to first drive the folding mechanism to be used, thereby realizing the folding of the landing frame, avoiding the phenomenon that the landing frame of the UAV body is hung on crops when the UAV body is flying at a low altitude, thereby facilitating the UAV body to spray pesticides on the crops; then, when the driving mechanism is operated, it is convenient to make the medicine guide tube move back and forth, thereby facilitating the uniform spraying of the medicine liquid on the crops, avoiding the phenomenon of spraying leakage, and facilitating the uniform spraying of pesticides on the crops; through the use of a push plate, it is convenient to make the medicine guide tube drive the push plate to move back and forth in the medicine box when moving back and forth, thereby facilitating the pushing of the medicine liquid in the medicine box, so that the medicine liquid in the medicine box is fully mixed, avoiding the presence of sediment in the medicine liquid, thereby improving the quality of the medicine liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It shows a schematic structural diagram of a front viewing angle provided by an embodiment of the present invention;

[0020] Figure 2 It shows a schematic structural diagram of a side viewing angle provided by an embodiment of the present invention;

[0021] Figure 3 It shows a schematic diagram of a structure according to a top-down perspective provided by an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the structure of a transmission mechanism provided according to an embodiment of the present invention is shown;

[0023] Figure 5 A schematic structural diagram of a driving mechanism provided according to an embodiment of the present invention is shown;

[0024] Figure 6 shows a cross-sectional view of an elongated frame provided according to an embodiment of the present invention;

[0025] Figure 7 A schematic structural diagram of a drug delivery mechanism provided according to an embodiment of the present invention is shown.

[0026] Legend:

[0027] 1. UAV body; 2. Medicine box; 3. Medicine guide tube 1; 4. Mounting plate 1; 5. Medicine outlet tube; 6. Nozzle; 7. Towing rope; 8. Drop frame; 9. Gear 1; 10. Gear 2; 11. Drive shaft; 12. Short shaft; 13. Winding wheel; 14. Strip tooth plate 1; 15. Strip tooth plate 2; 16. Electric push rod; 17. Connecting plate; 18. Round plate; 19. Articulated seat; 20. Torsion spring shaft; 21. Pulley; 22. Long frame; 23. Connecting frame; 24. Short column; 25. Ring frame; 26. Movable block; 27. Extrusion spring; 28. Mounting plate 2; 29. ​​Connector; 30. Round cylinder; 31. Medicine guide tube 2; 32. Water pump; 33. Push plate; 34. Hose. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-7 , the present invention provides a technical solution:

[0030] An agricultural plant protection UAV comprises a UAV body 1 and a medicine box 2 arranged at the bottom of the UAV body 1, wherein a medicine injection port is opened on the top of the medicine box 2, and a rubber plug is arranged in the medicine injection port for sealing the medicine injection port; a plurality of mounting plates 4 are evenly fixedly connected to the outer wall of the top of the medicine box 2, a medicine delivery mechanism is arranged in the medicine box 2, and a plurality of spraying mechanisms are arranged on the outer wall of the medicine box 2, and the medicine in the medicine box 2 is conveniently transported to the spraying mechanism through the mutual cooperation of the medicine delivery mechanism and the spraying mechanism, so as to realize the spraying of pesticides; a plurality of drop racks 8 corresponding to the mounting plate 4 are arranged at the bottom of the medicine box 2 through the rotation of hinges; and the number of the drop racks 8 is the same as the number of the mounting plate 4, and the drop racks 8 are located below the mounting plate 4; the use of hinges facilitates the automatic resetting of the drop racks 8.

[0031] A driving shaft 11 is rotatably provided on the top surface of each mounting plate 4, a gear 2 10 is fixedly connected to the top of the driving shaft 11, and a driving mechanism acting on the spraying mechanism is provided at the bottom of the driving shaft 11; through the use of the driving mechanism, it is convenient to make the medicine guiding tube 3 move back and forth, so as to facilitate the uniform spraying of the medicine liquid on the crops, avoid the phenomenon of spraying leakage, and facilitate the uniform spraying of pesticides on the crops.

[0032] A short shaft 12 is rotatably provided on the top surface of each mounting plate 4, a gear 9 is fixedly connected to the bottom outer wall of the short shaft 12, and a folding mechanism acting on the landing frame 8 is provided on the top outer wall of the short shaft 12; by using the folding mechanism, it is convenient to fold the landing frame 8, avoiding the phenomenon that the landing frame 8 of the drone body 1 is hung on the crops when the drone body 1 is flying low, thereby facilitating the drone body 1 to spray the crops.

[0033] An electric push rod 16 is installed on the top surface of each mounting plate 4, and the movable end of the electric push rod 16 is provided with a transmission mechanism that first acts on the gear 9 and then acts on the gear 10 through the mounting plate 2 28; through the use of the transmission mechanism, it is convenient to first drive the folding mechanism to be used, so as to realize the folding of the landing frame 8, so as to avoid the phenomenon that the landing frame 8 of the UAV body 1 is hung on the crops when the UAV body 1 is flying low, so as to facilitate the UAV body 1 to spray the crops; then, when the driving mechanism is operated, it is convenient to make the drug guide tube 3 move back and forth, so as to facilitate the uniform spraying of the drug solution on the crops, avoid the phenomenon of spray leakage, and facilitate the uniform spraying of pesticides on the crops.

[0034] In the present invention, the transmission mechanism includes an elongated frame 22 arranged on one side of the mounting plate 28, a movable block 26 and a squeezing spring 27 slidably arranged in the elongated frame 22, and the squeezing spring 27 is located at an end away from the fixed end of the electric push rod 16. Through the use of the squeezing spring 27, it is convenient to squeeze the movable block 26, so that the movable block 26 can move synchronously with the elongated frame 22; the movable block 26 is fixedly connected to a bar tooth plate 14 meshing with the gear 1 9, and the elongated frame 22 is fixedly connected to a bar tooth plate 15 matching with the gear 2 10.

[0035] In the present invention, the drug delivery mechanism includes a water pump 32 arranged in the medicine box 2, and a drug guide tube 31 is provided at the drug outlet end of the water pump 32, and a circular cylinder 30 is provided on the top of the drug guide tube 31; through the use of the circular cylinder 30, it is convenient for the drug solution to enter the drug guide tube 3, thereby facilitating the spraying of pesticides.

[0036] In the present invention, the spraying mechanism includes a medicine guiding tube 3 slidably arranged on the outer wall of the medicine box 2, a medicine outlet pipe 5 evenly arranged on the bottom of the medicine outlet pipe 3, and a nozzle 6 arranged at the bottom of the medicine outlet pipe 5. A connector 29 is provided at the inner end of the medicine guiding tube 3. The connector 29 is connected to the circular cylinder 30 through a hose 34. The use of the hose 34 facilitates the reciprocating sliding of the medicine guiding tube 3 without being restricted, which is beneficial to the spraying of pesticides.

[0037] In the present invention, a push plate 33 is fixedly connected to the outer wall of the inner end of the drug guiding tube 3, and the push plate 33 is slidably arranged with the bottom of the medicine box 2. By using the push plate 33, it is convenient for the drug guiding tube 3 to drive the push plate 33 to move back and forth in the medicine box 2 when it moves back and forth, so as to facilitate pushing the medicine liquid in the medicine box 2, so that the medicine liquid in the medicine box 2 is fully mixed, and the presence of sediment in the medicine liquid is avoided, thereby improving the quality of the medicine liquid.

[0038] In the present invention, the driving mechanism includes a circular plate 18 fixedly connected to the bottom of the driving shaft 11, a short column 24 arranged at the edge of the bottom surface of the circular plate 18, and an annular frame 25 slidably arranged on the outer wall of the short column 24, a connecting frame 23 is fixedly connected to the annular frame 25, and one end of the connecting frame 23 is fixedly connected to the drug guiding tube 3; the annular frame 25 is reciprocated by the rotation of the circular plate 18, thereby realizing the reciprocating movement of the drug guiding tube 3.

[0039] In the present invention, the hinged member includes a hinged seat 19 arranged on the bottom of the medicine box 2, and the drop frame 8 is rotatably arranged in the hinged seat 19 through a torsion spring shaft 20, wherein the torsion spring shaft 20 is composed of a shaft and a torsion spring, and gives the drop frame 8 an automatic restoring force.

[0040] In the present invention, the retracting mechanism includes a reel 13 fixedly connected to the outer wall of the short shaft 12 and pulleys 21 arranged on the top and bottom surfaces of the mounting plate 4, a connecting plate 17 is fixedly connected to the landing frame 8, a traction rope 7 is fixedly connected to the connecting plate 17, and one end of the traction rope 7 passes through each pulley 21 and is fixedly connected to the reel 13; the traction rope 7 is wound around the reel 13 to move the traction rope 7, thereby further retracting the landing frame 8.

[0041] Working principle: When the present invention is used, the drone body 1 is first placed on the ground, and then the mixed pesticide is poured into the medicine box 2; then the drone body 1 is started, and the drone body 1 is controlled to take off by the remote control, thereby driving the medicine box 2 to fly toward the crops;

[0042] Then, the electric push rod 16 is opened, and the long frame 22 is driven to move by the contraction of the electric push rod 16 (the starting point of the contraction of the movable end of the electric push rod 16 is point A, the middle point is point B, and the end is point C). The movement of the long frame 22 is divided into two processes:

[0043] Process 1: When the movable end of the electric push rod 16 shrinks from point A to point B, at this time, under the action of the extrusion spring 27, the movable block 26 and the elongated frame 22 move synchronously, thereby driving the bar-shaped toothed plate 14 to move, thereby driving the gear 19 and the short shaft 12 to rotate, and further driving the winding wheel 13 to rotate. Through the rotation of the winding wheel 13, the traction rope 7 is wound around the winding wheel 13, thereby pulling the landing frame 8 to rotate;

[0044] When the movable end of the electric push rod 16 is retracted to point B, the drop frame 8 is retracted, and then the bar gear plate 2 15 is meshed with the gear 2 10;

[0045] Process 2: As the movable end of the electric push rod 16 continues to shrink, that is, moves from point B to point C, it drives the elongated frame 22 to continue to move, and then drives the bar gear plate 2 15 to move, while the bar gear plate 1 14 is in a stationary state; then it drives the gear 2 10 to rotate, thereby driving the drive shaft 11 to rotate;

[0046] The rotation of the driving shaft 11 drives the circular plate 18 to rotate, and then drives the short column 24 to rotate, thereby driving the reciprocating movement of the annular frame 25, further driving the reciprocating movement of the connecting frame 23, and driving the reciprocating movement of the drug guide tube 3 to reciprocate, thereby driving the drug outlet pipe 5, the nozzle 6 and the push plate 33 to reciprocate; the reciprocating movement of the drug outlet pipe 5 and the nozzle 6 can achieve uniform spraying of pesticides, avoid the phenomenon of spraying leakage, and is conducive to the spraying of pesticides on crops; the reciprocating movement of the push plate 33 drives the liquid medicine in the medicine box 2 to move, so as to achieve mixing of the liquid medicine in the medicine box 2 and improve the quality of the liquid medicine;

[0047] Then, the movable end of the electric push rod 16 is controlled to move from point B to point C, and then from point C to point B, and the movement is repeated repeatedly, thereby realizing the reciprocating movement of the drug guiding tube 3;

[0048] When the drone body 1 flies to the top of the crops, the water pump 32 is turned on, and the liquid medicine in the medicine box 2 is transported to the circular cylinder 30 through the medicine guide tube 2 31 by the water pump 32, and then enters the medicine guide tube 1 3 through the hose 34 and the connector 29, and finally sprayed on the crops through the medicine outlet pipe 5 and the nozzle 6, thereby achieving the spraying of the crops.

[0049] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An agricultural plant protection drone, comprising a drone body (1) and a medicine box (2) arranged at the bottom of the drone body (1), characterized in that: A plurality of mounting plates (4) are evenly fixed to the outer wall of the top of the medicine box (2); a medicine delivery mechanism is provided inside the medicine box (2); a plurality of medicine spraying mechanisms are provided on the outer wall of the medicine box (2); and a plurality of drop frames (8) corresponding to the mounting plates (4) are provided at the bottom of the medicine box (2) through a hinged part. A drive shaft (11) is rotatably provided on the top surface of each of the mounting plates 1 (4), a gear 2 (10) is fixedly connected to the top of the drive shaft (11), and a drive mechanism acting on a spraying mechanism is provided at the bottom of the drive shaft (11); A short shaft (12) is rotatably provided on the top surface of each of the mounting plates (4), a gear (9) is fixedly connected to the bottom outer wall of the short shaft (12), and a retracting mechanism acting on the drop frame (8) is provided on the top outer wall of the short shaft (12); An electric push rod (16) is mounted on the top surface of each of the mounting plates 1 (4), and a transmission mechanism is provided at the movable end of the electric push rod (16) through the mounting plate 2 (28) to first act on the gear 1 (9) and then act on the gear 2 (10); The retracting mechanism comprises a reel (13) fixedly connected to the outer wall of the short shaft (12) and pulleys (21) arranged on the top and bottom surfaces of the mounting plate (4); a connecting plate (17) is fixedly connected to the landing frame (8); a traction rope (7) is fixedly connected to the connecting plate (17); and one end of the traction rope (7) passes through each pulley (21) and is fixedly connected to the reel (13); The transmission mechanism comprises an elongated frame (22) arranged on one side of the second mounting plate (28), a movable block (26) and a compression spring (27) slidably arranged in the elongated frame (22), wherein the compression spring (27) is located at an end away from the fixed end of the electric push rod (16), the movable block (26) is fixedly connected to a bar-shaped toothed plate 1 (14) meshing with a first gear (9), and the elongated frame (22) is fixedly connected to a bar-shaped toothed plate 2 (15) matching with a second gear (10); The drug delivery mechanism comprises a water pump (32) arranged in the medicine box (2); a drug delivery end of the water pump (32) is provided with a second drug guide tube (31); and a top of the second drug guide tube (31) is provided with a circular cylinder (30); The medicine spraying mechanism comprises a medicine guiding tube (3) slidably arranged on the outer wall of the medicine box (2), a medicine outlet pipe (5) evenly arranged on the bottom of the medicine guiding tube (3), and a spray head (6) arranged at the bottom of the medicine outlet pipe (5); a connector (29) is provided at the inner end of the medicine guiding tube (3), and the connector (29) is connected to the circular cylinder (30) via a hose (34); A push plate (33) is fixedly connected to the outer wall of the inner end of the medicine guiding tube (3), and the push plate (33) is slidably arranged with the inner bottom of the medicine box (2).

2. The agricultural plant protection drone according to claim 1, characterized in that: The driving mechanism comprises a circular plate (18) fixedly connected to the bottom of the driving shaft (11), a short column (24) arranged at the edge of the bottom surface of the circular plate (18), and an annular frame (25) slidably arranged on the outer wall of the short column (24), a connecting frame (23) fixedly connected to the annular frame (25), and one end of the connecting frame (23) is fixedly connected to a drug guiding tube (3).

3. The agricultural plant protection drone according to claim 2, characterized in that: The hinged component comprises a hinged seat (19) arranged on the bottom of the medicine box (2), and the drop frame (8) is rotatably arranged in the hinged seat (19) via a torsion spring shaft (20).

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