Pesticide spraying unmanned aerial vehicle with protection function

Abstract

The invention relates to the technical field of unmanned aerial vehicles, in particular to a pesticide spraying unmanned aerial vehicle with a protection function, which comprises a top plate, an extension rod is fixed on the surface of the top plate, a support frame is fixed at the bottom of the top plate, a support frame is fixed on the surface of the support frame, and a base is fixed at the bottom of the support frame; the device has the beneficial effects that a connecting rope is wound outside a winding shaft, so that the winding shaft and a lifting block at the bottom of the winding shaft do not rotate any more, threads on the surface of a rotating shaft are in threaded connection in a threaded connection groove, the lifting block ascends, after the lifting block ascends, an abutting groove abuts against the surface of a stress block, and the stress block transversely moves after being extruded; the stress blocks drive the stress rods to move, the jacking blocks at the ends of the stress rods are inserted into the open grooves and jacked in the limiting grooves in the surfaces of the lifting rods, the positions of the lifting rods are fixed, the positions of each set of lifting rods are fixed, and the unmanned aerial vehicle can stably stop at the inclined position through supporting of the multiple sets of lifting rods.

Description

Technical Field

[0001] This invention relates to the field of drone technology, specifically to a pesticide spraying drone with protective functions. Background Technology

[0002] Drones, as the name suggests, are unmanned aircraft. They are unmanned aircraft controlled by radio remote control equipment and their own program control devices. With the development of technology, civilian drones have been used more and more in life. For example, in agriculture, drones can perform a series of tasks such as spraying pesticides, observing plant growth, and irrigating.

[0003] In the prior art, patent number CN213384730U, entitled "A Spraying Drone with Protective Function," includes a drone fuselage. Wings are fixedly connected to both sides of the fuselage, and a propeller is fixedly connected to the end of each wing furthest from the fuselage. A mounting plate is fixedly connected to the bottom of the fuselage, and support frames are fixedly connected to both sides of the mounting plate. A base plate is fixedly connected to the bottom of each support frame. This invention, by setting up a mounting plate, spray pipe, spray head, and pesticide tank, enables the device to carry the pesticide tank for spraying, effectively improving its practicality. By incorporating a movable main rod, base plate, slider, slide bar, buffer spring, connecting rod, fixing block, and movable secondary rod, it can buffer the instantaneous impact force when the device lands, effectively preventing damage to internal components due to excessive impact upon landing, thus enhancing the device's protective function.

[0004] However, when a drone needs to land on an inclined surface, a non-adjustable base will cause the drone to tip over after landing, failing to provide any protection. Summary of the Invention

[0005] The purpose of this invention is to provide a pesticide spraying drone with protective functions to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pesticide spraying drone with protective functions, comprising: The top plate has an extension rod fixed to its surface and a support frame fixed to its bottom. A support frame is fixed to the surface of the support frame, and a base is fixed to the bottom of the support frame. A fixing rod is fixed to the surface of the base, and a lifting rod is inserted into the inside of the fixing rod. A slot is formed on the surface of the fixing rod, and a top-holding block is inserted into the slot. A force-bearing rod is fixed to the surface of the top-holding block, and a force-bearing block is fixed to the other end of the force-bearing rod. A first arc-shaped rod and a second arc-shaped rod are fixed to the surface of the base. A circular plate is fixed to the bottom of the first and second arc-shaped rods. A lifting block is provided on the top of the circular plate, and a top-holding groove is provided on the surface of the lifting block. A winding shaft and a baffle are fixed to the surface of the lifting block.

[0007] Preferably, the end of the extension rod is provided with a fan blade, the bottom of the fan blade is provided with a spray head, the surface of the fixing block is fixed with a driving device, the driving device drives the fan blade to rotate, the surface of the base is fixed with four sets of fixing rods, the fixing rods are provided with insertion holes, the lifting rods are inserted into the insertion holes, and the lifting rods can move up and down in the insertion holes, the top of the lifting rods is fixed with an extension plate, the extension plate moves with the lifting rods, the outside of the lifting rods is provided with a spring, one end of the spring is connected to the surface of the extension plate, the other end is connected to the surface of the fixing rods, the spring has a pulling force on the extension plate, so that the extension plate is close to the surface of the fixing rods.

[0008] Preferably, the surface of the extension plate is connected to a connecting rope, the surface of the support frame is provided with a first through hole, the connecting rope is inserted into the first through hole, the surface of the support frame is fixed with a guide tube, the connecting rope is inserted into the inside of the guide tube, the connecting rope can move inside the guide tube and the first through hole, the surface of the base is fixed with a support rod, the surface of the support rod is provided with a second through hole, a force-bearing rod is inserted into the second through hole, and the force-bearing rod can move laterally in the second through hole.

[0009] Preferably, the surface of the base is fixed with two sets of second arc-shaped rods, and the surface of the second arc-shaped rods is fixed with two sets of first arc-shaped rods. The surfaces of the first and second arc-shaped rods are provided with third through holes. The force-bearing rod is inserted into the third through hole and can move in the third through hole. One end of the force-bearing rod is fixed with a force-bearing block and the force-bearing rod moves with the force-bearing block. The other end of the force-bearing rod is fixed with a top-holding block and the top-holding block moves with the force-bearing rod. The surface of the fixing rod is provided with a slot and the top-holding block can move in the slot.

[0010] Preferably, the surface of the lifting rod is provided with a limiting groove, the surface of the top holding block is provided with a protrusion, the protrusion on the surface of the top holding block can be inserted into the limiting groove, the bottom of the second arc-shaped rod is fixed with a vertical rod, the bottom of the vertical rod is fixed with a circular plate, the bottom of the circular plate is fixed with a motor, the other side of the circular plate is provided with a rotating shaft, the rotating shaft is inserted into the inside of the circular plate, the rotating shaft can rotate inside the circular plate, and the motor can drive the rotating shaft to rotate.

[0011] Preferably, the surface of the rotating shaft is provided with threads, and a lifting block is sleeved on the outside of the rotating shaft. The lifting block has a screw groove inside, which is screwed onto the outside of the rotating shaft. A top holding groove is provided on the bottom surface of the lifting block, and the top holding groove moves and rotates with the lifting block.

[0012] Preferably, a winding shaft is fixed to the top of the lifting block, a baffle is fixed to the top of the winding shaft, and a limit groove is wound around the surface of the winding shaft.

[0013] Preferably, the interior of the lifting block is hollow, and the internal diameter of the lifting block is larger than the diameter of the screw groove. A telescopic head is inserted into the top surface of the rotating shaft. The telescopic head can extend and retract on the surface of the rotating shaft. A second spring is provided inside the rotating shaft. The second spring has a thrust on the telescopic head, so that the end of the telescopic head is exposed outside the rotating shaft. The telescopic head rotates with the rotating shaft.

[0014] Preferably, the lifting block has a support block fixed to its inner top. Multiple sets of support blocks are provided. One side of the support block is arc-shaped and the other side is flat. The telescopic head can contact the surface of the support block during the rotation of the rotating shaft. The motor can drive the rotating shaft to rotate in both the forward and reverse directions.

[0015] Preferably, the lifting rod is provided in four sets, which are located at the bottom of the drone. When the telescopic head rotates, it presses against one side of the arc-shaped support block. After being pressed against by the support block, the telescopic head retracts into the interior of the rotating shaft. The rotating shaft rotates freely inside the lifting block. The telescopic head presses against the flat side of the support block, and the telescopic head drives the support block to rotate. The rotating shaft drives the lifting block to rotate.

[0016] Compared with the prior art, the beneficial effects of the present invention are: The connecting rope proposed in this invention is wound around the outside of the winding shaft, so that the winding shaft and the lifting block at the bottom no longer rotate. The thread on the surface of the rotating shaft is screwed into the screw groove, so that the lifting block rises. After the lifting block rises, the top holding groove holds the surface of the force block, so that the force block moves laterally after being squeezed. The force block drives the force rod to move. The top holding block at the end of the force rod is inserted into the slot and holds the lifting rod in the limiting groove on the surface of the lifting rod, fixing the position of the lifting rod. The position of each set of lifting rods is fixed. With the support of multiple sets of lifting rods, the drone can be stably stopped in the tilted position. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the present invention from another perspective.

[0019] Figure 3 This is a schematic diagram of the base structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the base structure from another perspective of the present invention.

[0021] Figure 5 This is a schematic diagram of the lifting rod structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the lifting rod from another perspective of the present invention.

[0023] Figure 7for Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0024] Figure 8 This is a schematic diagram of the cross-sectional structure of the pole of the present invention.

[0025] Figure 9 This is a schematic diagram of the cross-sectional structure of the rotating shaft of the present invention.

[0026] Figure 10 for Figure 9 Enlarged schematic diagram of the structure at point B.

[0027] In the diagram: 1. Extension rod; 2. Top plate; 3. Fan blade; 4. Spray head; 5. Base; 6. Fixing block; 7. Support frame; 8. Fixing rod; 9. First arc rod; 10. Second arc rod; 11. Circular plate; 12. Motor; 13. Guide tube; 14. First through hole; 15. Connecting rope; 16. Extension plate; 17. Spring; 18. Insertion hole; 19. Lifting rod; 20. Support rod; 21. Second through hole; 22. Force-bearing rod; 23. Top holding block; 24. Slot; 25. Limiting slot; 26. Baffle; 27. Winding shaft; 28. Lifting block; 29. ​​Top holding slot; 30. Force-bearing block; 31. Third through hole; 32. Vertical rod; 33. Rotating shaft; 34. Screw groove; 35. Telescopic head; 36. Support block. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1 to 10 The present invention provides a technical solution: Example 1: A pesticide spraying drone with protective function, comprising: a top plate 2, an extension rod 1 fixed to the surface of the top plate 2, a support frame 7 fixed to the bottom of the top plate 2, a support frame 7 fixed to the surface of the support frame 7, a base 5 fixed to the bottom of the support frame 7, a fixing rod 8 fixed to the surface of the base 5, a lifting rod 19 inserted into the inside of the fixing rod 8, a slot 24 formed on the surface of the fixing rod 8, a top holding block 23 inserted into the slot 24, a force-bearing rod 22 fixed to the surface of the top holding block 23, a force-bearing block 30 fixed to the other end of the force-bearing rod 22, and a first arc-shaped rod 9 and a second arc-shaped rod 10 fixed to the surface of the base 5. A circular plate 11 is fixed to the bottom of the shaped rod 9 and the second arc rod 10. A lifting block 28 is provided on the top of the circular plate 11. A top holding groove 29 is provided on the surface of the lifting block 28. A winding shaft 27 and a baffle 26 are fixed on the surface of the lifting block 28. The connecting rope 15 is wound around the outside of the winding shaft 27, so that the winding shaft 27 and the lifting block 28 at the bottom no longer rotate. The thread on the surface of the rotating shaft 33 is screwed into the screw groove 34, so that the lifting block 28 rises. After the lifting block 28 rises, the top holding groove 29 holds the surface of the force block 30, so that the force block 30 moves laterally after being squeezed. The force block 30 drives the force rod 22 to move.

[0030] Example 2: Based on Example 1, a fan blade 3 is provided at the end of the extension rod 1, and a spray head 4 is provided at the bottom of the fan blade 3. A driving device is fixed on the surface of the fixing block 6, and the driving device drives the fan blade 3 to rotate. Four sets of fixing rods 8 are fixed on the surface of the base 5. The fixing rods 8 have insertion holes 18 inside, and the lifting rod 19 is inserted into the insertion holes 18 and can move up and down in the insertion holes 18. An extension plate 16 is fixed on the top of the lifting rod 19 and moves with the lifting rod 19. A spring 17 is provided on the outside of the lifting rod 19. One end of the spring 17 is connected to the surface of the extension plate 16, and the other end is connected to the surface of the fixing rod 8. The spring 17 has a pulling force on the extension plate 16, so that the extension plate 16 is close to the surface of the fixing rod 8. A limit groove 25 is provided on the surface of the lifting rod 19. A protrusion is provided on the surface of the top support block 23, and the protrusion on the surface of the top support block 23 can be inserted into In the limiting groove 25, a vertical rod 32 is fixed to the bottom of the second arc-shaped rod 10, a circular plate 11 is fixed to the bottom of the vertical rod 32, a motor 12 is fixed to the bottom of the circular plate 11, and a rotating shaft 33 is provided on the other side of the circular plate 11. The rotating shaft 33 is inserted into the inside of the circular plate 11 and can rotate inside the circular plate 11. The motor 12 can drive the rotating shaft 33 to rotate. The surface of the rotating shaft 33 is provided with threads, and a lifting block 28 is sleeved on the outside of the rotating shaft 33. A screw groove 34 is opened inside the lifting block 28 and screwed into the outside of the rotating shaft 33. The connecting rope 15 is wound around the outside of the winding shaft 27, so that the winding shaft 27 and the lifting block 28 at the bottom no longer rotate. The threads on the surface of the rotating shaft 33 are screwed into the screw groove 34, so that the lifting block 28 rises. After the lifting block 28 rises, the top holding groove 29 holds the surface of the force block 30, so that the force block 30 moves laterally after being squeezed.

[0031] The bottom surface of the lifting block 28 is provided with a top holding groove 29, which moves and rotates with the lifting block 28. A winding shaft 27 is fixed to the top of the lifting block 28, and a baffle 26 is fixed to the top of the winding shaft 27. A limit groove 25 is wound on the surface of the winding shaft 27. The interior of the lifting block 28 is hollow, and the internal diameter of the lifting block 28 is larger than the diameter of the screw groove 34. A telescopic head 35 is inserted into the top surface of the rotating shaft 33. The telescopic head 35 can extend and retract on the surface of the rotating shaft 33. A second spring is provided inside the rotating shaft 33. The second spring has a thrust on the telescopic head 35, so that the end of the telescopic head 35 is exposed outside the rotating shaft 33. The telescopic head 35 rotates with the rotating shaft 33, and the top of the interior of the lifting block 28... A fixed abutment block 36 is provided, and multiple sets of abutment blocks 36 are provided. One side of the abutment block 36 is arc-shaped, and the other side is flat. The telescopic head 35 can contact the surface of the abutment block 36 during the rotation of the rotating shaft 33. The motor 12 can drive the rotating shaft 33 to rotate in the forward and reverse directions. Four sets of lifting rods 19 are provided, and the four sets of lifting rods 19 are located at the bottom of the drone. When the telescopic head 35 rotates, it presses against the arc-shaped side of the abutment block 36. After being pressed by the abutment block 36, the telescopic head 35 retracts into the interior of the rotating shaft 33. The rotating shaft 33 rotates freely inside the lifting block 28. The telescopic head 35 presses against the flat side of the abutment block 36. The telescopic head 35 drives the abutment block 36 to rotate, and the rotating shaft 33 drives the lifting block 28 to rotate.

[0032] The surface of the extension plate 16 is connected to the connecting rope 15. The surface of the support frame 7 is provided with a first through hole 14. The connecting rope 15 is inserted into the first through hole 14. The surface of the support frame 7 is fixed with a guide tube 13. The connecting rope 15 is inserted into the inside of the guide tube 13. The connecting rope 15 can move inside the guide tube 13 and the first through hole 14. The surface of the base 5 is fixed with a support rod 20. The surface of the support rod 20 is provided with a second through hole 21. A force-bearing rod 22 is inserted into the second through hole 21. The force-bearing rod 22 can move laterally in the second through hole 21.

[0033] Two sets of second arc-shaped rods 10 are fixed to the surface of the base 5. Two sets of first arc-shaped rods 9 are fixed to the surface of the second arc-shaped rods 10. The surfaces of the first arc-shaped rods 9 and the second arc-shaped rods 10 are provided with third through holes 31. The force-bearing rod 22 is inserted into the third through hole 31 and can move in the third through hole 31. One end of the force-bearing rod 22 is fixed with a force-bearing block 30 and moves with the force-bearing block 30. The other end of the force-bearing rod 22 is fixed with a top-holding block 23 and moves with the force-bearing rod 22. The surface of the fixing rod 8 is provided with a slot 24 and the top-holding block 23 can move in the slot 24. The top-holding block 23 at the end of the force-bearing rod 22 is inserted into the slot 24 and holds in the limiting groove 25 on the surface of the lifting rod 19 to fix the position of the lifting rod 19. The position of each set of lifting rods 19 is fixed. With the support of multiple sets of lifting rods 19, the drone can be stably stopped in the tilted position.

[0034] When the drone lands, the pull of spring 17 exposes the bottom of the lifting rod 19 on the bottom of the drone. The bottom of the lifting rod 19 at the bottom of the base 5 contacts the ground. Due to the weight of the drone, the lifting rod 19 moves upward through the insertion hole 18 inside the fixed rod 8. Because the ground is inclined, the rising distance of each set of lifting rods 19 is different. Since the drone is flying horizontally, after the bottom of each set of lifting rods 19 contacts the ground, the rotating shaft 33 is driven by motor 12 to... As the shaft rotates, the telescopic head 35 rests against the arc-shaped side of the supporting block 36, ensuring that the telescopic head 35 is always retracted inside the rotating shaft 33. The connecting rope 15 is wound around the outside of the winding shaft 27, preventing the winding shaft 27 and the lifting block 28 at its bottom from rotating. The threads on the surface of the rotating shaft 33 are screwed into the threaded groove 34, causing the lifting block 28 to rise. After the lifting block 28 rises, the supporting groove 29 rests against the surface of the force-bearing block 30, causing the force-bearing block 30 to move laterally after being compressed. The force-bearing block 30 drives the force-bearing rod 2... 2. The lifting rod 19 moves, and the top support block 23 at the end of the force-bearing rod 22 is inserted into the slot 24 and supports the lifting rod 19 in the limiting slot 25 on the surface of the lifting rod 19, fixing the position of the lifting rod 19. The position of each set of lifting rods 19 is fixed. With the support of multiple sets of lifting rods 19, the drone can be stably stopped in the tilted position. When the drone takes off, the motor 12 drives the rotating shaft 33 to rotate in the opposite direction. Before the telescopic head 35 contacts the flat side of the support block 36, the lifting block 28 descends a certain distance with the rotation of the rotating shaft 33, so that the force-bearing block 30 is no longer supported and the top support block 23 no longer supports the surface of the lifting rod 19, so that the lifting rod 19 can move up and down. After the telescopic head 35 supports the flat side of the support block 36, the lifting block 28 rotates with the rotating shaft 33, so that the connecting rope 15 is wrapped around the surface of the winding shaft 27. The lifting rod 19 is pulled by the connecting rope 15, so that the lifting rod 19 rises and is not exposed at the bottom of the drone, so as not to affect the use of the drone.

[0035] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A pesticide spraying drone with protective functions, characterized in that: include: Top plate (2), extension rod (1) is fixed on the surface of top plate (2), support frame (7) is fixed on the bottom of top plate (2), support frame (7) is fixed on the surface of support frame (7), base (5) is fixed on the bottom of support frame (7), fixing rod (8) is fixed on the surface of base (5), lifting rod (19) is inserted into the inside of fixing rod (8), slot (24) is opened on the surface of fixing rod (8), top holding block (23) is inserted into slot (24), and the surface of top holding block (23) is... A force-bearing rod (22) is fixed, and a force-bearing block (30) is fixed at the other end of the force-bearing rod (22). A first arc-shaped rod (9) and a second arc-shaped rod (10) are fixed on the surface of the base (5). A circular plate (11) is fixed at the bottom of the first arc-shaped rod (9) and the second arc-shaped rod (10). A lifting block (28) is provided on the top of the circular plate (11). A top holding groove (29) is provided on the surface of the lifting block (28). A winding shaft (27) and a baffle (26) are fixed on the surface of the lifting block (28).

2. The pesticide spraying drone with protective function according to claim 1, characterized in that: The end of the extension rod (1) is provided with a fan blade (3), and the bottom of the fan blade (3) is provided with a spray head (4). The surface of the fixed block (6) is fixed with a driving device, which drives the fan blade (3) to rotate. The surface of the base (5) is fixed with four sets of fixed rods (8). The fixed rod (8) has a plug hole (18) inside. The lifting rod (19) is inserted into the plug hole (18) and can move up and down in the plug hole (18). The top of the lifting rod (19) is fixed with an extension plate (16). The extension plate (16) moves with the lifting rod (19). The outside of the lifting rod (19) is provided with a spring (17). One end of the spring (17) is connected to the surface of the extension plate (16), and the other end is connected to the surface of the fixed rod (8). The spring (17) has a pulling force on the extension plate (16), so that the extension plate (16) is close to the surface of the fixed rod (8).

3. The pesticide spraying drone with protective function according to claim 2, characterized in that: The surface of the extension plate (16) is connected to the connecting rope (15), the surface of the support frame (7) is provided with a first through hole (14), the connecting rope (15) is inserted into the first through hole (14), the surface of the support frame (7) is fixed with a guide tube (13), the connecting rope (15) is inserted into the inside of the guide tube (13), the connecting rope (15) can move inside the guide tube (13) and the first through hole (14), the surface of the base (5) is fixed with a support rod (20), the surface of the support rod (20) is provided with a second through hole (21), a force rod (22) is inserted into the second through hole (21), the force rod (22) can move laterally in the second through hole (21).

4. The pesticide spraying drone with protective function according to claim 3, characterized in that: Two sets of second arc rods (10) are fixed on the surface of the base (5). Two sets of first arc rods (9) are fixed on the surface of the second arc rods (10). A third through hole (31) is opened on the surface of the first arc rod (9) and the second arc rod (10). The force rod (22) is inserted into the third through hole (31). The force rod (22) can move in the third through hole (31). A force block (30) is fixed at one end of the force rod (22). The force rod (22) moves with the force block (30). A top holding block (23) is fixed at the other end of the force rod (22). The top holding block (23) moves with the force rod (22). A slot (24) is opened on the surface of the fixing rod (8). The top holding block (23) can move in the slot (24).

5. A pesticide spraying drone with protective function according to claim 4, characterized in that: The lifting rod (19) has a limiting groove (25) on its surface. The top support block (23) has a protrusion on its surface. The protrusion on the surface of the top support block (23) can be inserted into the limiting groove (25). The bottom of the second arc rod (10) is fixed with a vertical rod (32). The bottom of the vertical rod (32) is fixed with a circular plate (11). The bottom of the circular plate (11) is fixed with a motor (12). The other side of the circular plate (11) is provided with a rotating shaft (33). The rotating shaft (33) is inserted into the inside of the circular plate (11). The rotating shaft (33) can rotate inside the circular plate (11). The motor (12) can drive the rotating shaft (33) to rotate.

6. A pesticide spraying drone with protective function according to claim 5, characterized in that: The surface of the rotating shaft (33) is provided with threads, and a lifting block (28) is sleeved on the outside of the rotating shaft (33). A screw groove (34) is provided inside the lifting block (28), and the screw groove (34) is screwed to the outside of the rotating shaft (33). A top holding groove (29) is provided on the bottom surface of the lifting block (28), and the top holding groove (29) moves and rotates with the lifting block (28).

7. A pesticide spraying drone with protective function according to claim 6, characterized in that: The top of the lifting block (28) is fixed with a winding shaft (27), the top of the winding shaft (27) is fixed with a baffle (26), and the surface of the winding shaft (27) is wound with a limiting groove (25).

8. A pesticide spraying drone with protective function according to claim 7, characterized in that: The interior of the lifting block (28) is hollow, and the internal diameter of the lifting block (28) is larger than the diameter of the screw groove (34). A telescopic head (35) is inserted into the top surface of the rotating shaft (33). The telescopic head (35) can extend and retract on the surface of the rotating shaft (33). A second spring is provided inside the rotating shaft (33). The second spring has a thrust on the telescopic head (35), so that the end of the telescopic head (35) is exposed outside the rotating shaft (33). The telescopic head (35) rotates with the rotating shaft (33).

9. A pesticide spraying drone with protective function according to claim 8, characterized in that: The lifting block (28) has a support block (36) fixed on its inner top. There are multiple sets of support blocks (36). One side of the support block (36) is arc-shaped and the other side is flat. The telescopic head (35) can contact the surface of the support block (36) during the rotation of the rotating shaft (33). The motor (12) can drive the rotating shaft (33) to rotate in the forward direction and in the reverse direction.

10. A pesticide spraying drone with protective function according to claim 9, characterized in that: The lifting rod (19) is provided in four sets. The four sets of lifting rods (19) are located at the bottom of the drone. When the telescopic head (35) rotates, it presses against the arc-shaped side of the abutment block (36). After being pressed by the abutment block (36), the telescopic head (35) retracts into the interior of the rotating shaft (33). The rotating shaft (33) rotates freely inside the lifting block (28). The telescopic head (35) presses against the flat side of the abutment block (36). The telescopic head (35) drives the abutment block (36) to rotate. The rotating shaft (33) drives the lifting block (28) to rotate.

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