Device for automatically adjusting angle of 360 degrees of spray head of unmanned aerial vehicle for spraying

Abstract

The utility model relates to the field of spraying unmanned aerial vehicles, and discloses a spraying unmanned aerial vehicle nozzle angle 360-degree automatic adjusting device which comprises a fixing shell and an outer cylinder, a fixing plate is fixedly arranged at the center of the upper end face of the outer wall of the fixing shell, a clamping mechanism is arranged in the fixing plate, and the clamping mechanism comprises a two-way screw rod. Supporting plates are arranged at the two ends of the outer wall of the two-way screw in a threaded and sleeving mode, threaded rods are rotatably arranged at the centers of the bottom end faces of the inner walls of the two supporting plates, clamping plates are slidably arranged in the two supporting plates, a transmission mechanism is arranged in the fixed shell, and the transmission mechanism comprises a rotating shaft, a large gear and a small gear. And one side of the outer wall of the rotating shaft is fixedly sleeved with a longitudinal bevel gear. According to the utility model, the number of the nozzles can be quickly adjusted, and the spraying angles of the nozzles can be adjusted, so that the operation pressure of operators is reduced.

Description

Technical Field

[0001] This utility model relates to the field of spraying drones, and in particular to a 360° automatic adjustment device for the nozzle angle of a spraying drone. Background Technology

[0002] Drone spraying operations have been widely used in fields such as agricultural plant protection and environmental disinfection. Drones consist of a flight platform, control system, power system, spraying system or spreading system. They are used for pesticide spraying, seed and fertilizer spreading, etc., through remote control by ground personnel or autonomous flight control. Traditional drone nozzles have fixed angles, which makes it difficult to meet the needs of complex operation scenarios. Therefore, developing a device that can automatically adjust the nozzle angle is of great practical significance.

[0003] In the process of developing this application, the inventors discovered the following problems with the prior art:

[0004] In existing technologies, operators often need to frequently adjust the drone's flight attitude to meet the requirement of uniform spraying. This not only increases the difficulty of operation and reduces work efficiency, but may also cause the drone to be damaged by collision due to improper operation. In addition, in existing technologies, the nozzles are usually connected to the drone by directly fixing them to the lower end of the drone with bolts, which makes it inconvenient to adjust the number of nozzles according to usage requirements.

[0005] Therefore, those skilled in the art have provided a device for automatically adjusting the 360° nozzle angle of a drone spraying application to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a 360° automatic adjustment device for the nozzle angle of a drone spraying equipment. This device enables quick adjustment of the number of nozzles and adjusts the spraying angle, thereby reducing the operational burden on operators.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A spraying drone nozzle angle automatic adjustment device with 360° includes a fixed outer shell and an outer cylinder. A fixed plate is fixedly installed at the center of the upper end face of the outer wall of the fixed outer shell. A clamping mechanism is provided inside the fixed plate. The clamping mechanism includes a bidirectional screw. Support plates are threadedly sleeved at both ends of the outer wall of the bidirectional screw. Threaded rods are rotatably installed at the center of the bottom end face of the inner wall of the two support plates. Clamping plates are slidably installed inside the two support plates. A transmission mechanism is provided inside the fixed outer shell. The transmission mechanism includes a rotating shaft, a large gear, and a small gear. A longitudinal bevel gear is fixedly sleeved on one side of the outer wall of the rotating shaft. A transverse bevel gear is fixedly installed at the center of the upper end face of the small gear. The large gear and the small gear are meshed. The longitudinal bevel gear and the transverse bevel gear are meshed.

[0009] An inner cylinder is movably sleeved inside the outer cylinder. A buffer mechanism is provided on the bottom surface of the inner side of the outer cylinder. The buffer mechanism includes two fixed sleeves. A spring is fixedly installed on one side of the inner wall of each of the two fixed sleeves. A sliding block is movably sleeved inside each of the two fixed sleeves. A connecting arm is hinged to one end of the upper surface of each of the two sliding blocks. A connecting plate is hinged to the center of one side of the lower surface of the outer cylinder. A fixed frame is rotatably installed at the center of one side of the connecting plate. Four fixed seats are movably sleeved on the outer wall of the fixed frame. A water spray head is fixedly installed at the center of the lower surface of the outer wall of each of the four fixed seats. A limit plate is slidably installed at the center of the other side of the lower surface of the outer cylinder.

[0010] Furthermore, both support plates are slidably disposed inside the fixed plate, and the two clamping plates are respectively threadedly sleeved on the outer walls of the two threaded rods. The two ends of the bidirectional screw are respectively rotatably connected to the center of the two end faces of the inner wall of the fixed plate.

[0011] Furthermore, the two ends of the rotating shaft are rotatably connected to the center of the two end faces of the inner wall of the fixed housing, the large gear is rotatably located at the center of the bottom end face of the inner wall of the fixed housing, and the small gear is rotatably located at the center of one side of the bottom end face of the inner wall of the fixed housing.

[0012] Furthermore, the two fixed sleeves are respectively fixedly installed at the center of both sides of the bottom end face of the inner wall of the outer cylinder, the two sliding blocks are slidably connected to the bottom end face of the inner wall of the outer cylinder and respectively fixedly connected to one end of the two springs, and the two connecting arms are hinged to the top end face of the inner wall of the inner cylinder.

[0013] Furthermore, a connecting shaft is fixedly installed at the center of the lower end face of the large gear, and a bearing is rotatably installed at the center of the lower end face of the outer wall of the fixed housing. The connecting shaft is fixedly connected to the inner wall of the bearing and to the center of the upper end face of the outer wall of the inner cylinder. The inner cylinder is fixedly connected to the outer ring of the bearing, and the fixed housing is fixedly connected to the inner ring of the bearing.

[0014] Furthermore, multiple screw holes are provided at the center of the lower end face of the fixing frame, and bolts are threadedly embedded at the center of both sides of the lower end face of the four fixing seats. The multiple bolts are respectively threadedly embedded in one of the multiple screw holes.

[0015] Furthermore, a connecting rod is rotatably provided at the center of the side of the fixing frame near the limiting plate. The connecting rod slides through one side of the limiting plate, and a fixing nut is threaded onto one side of the outer wall of the connecting rod.

[0016] Furthermore, a No. 1 motor is fixedly installed on one side of the outer wall of the fixed housing, and the output end of the No. 1 motor is fixedly connected to one end of the rotating shaft. A No. 2 motor is fixedly installed on one side of the connecting plate, and the output end of the No. 2 motor is fixedly connected to one end of the fixed frame.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model proposes a 360° automatic adjustment device for the spray nozzle angle of a drone. Starting a primary motor drives a rotating shaft, which in turn drives a small gear through a longitudinal bevel gear at one end of the shaft's outer wall and a meshing transverse bevel gear. This small gear then drives a large gear, which in turn rotates the inner and outer cylinders, thus achieving a 360° adjustment of the spray nozzle angle. Simultaneously, a secondary motor drives a fixed frame to rotate, further adjusting the spray elevation angle, thus achieving automatic adjustment of the spray nozzle angle and reducing the operator's workload.

[0019] 2. This utility model proposes a 360° automatic adjustment device for the nozzle angle of a drone spraying device. By rotating the fixing nut, the nozzle can be removed from the outer wall of the connecting rod. Then, the limiting plate can be slid to one side to separate it from the outer wall of the connecting rod. At this time, the connecting plate can be folded under the action of gravity. Then, the fixing seat at the upper end of the nozzle to be added is sleeved on the appropriate position of the outer wall of the fixing frame. After that, the two bolts on both sides of the lower end face of the fixing seat are rotated so that the two bolts can be threaded into the two screw holes located at the corresponding positions to fix the position of the fixing seat, thereby achieving a convenient adjustment effect on the number of spray heads. Attached Figure Description

[0020] Figure 1 This is a first isometric schematic diagram of the present invention;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is a second isometric schematic diagram of the present invention;

[0023] Figure 4This is a front sectional view of the inner cylinder and outer cylinder assembly of this utility model.

[0024] Legend:

[0025] 1. Fixed outer shell; 2. Clamping mechanism; 3. Fixing plate; 4. Motor No. 1; 5. Bearing; 6. Inner cylinder; 7. Outer cylinder; 8. Connecting rod; 9. Fixing nut; 10. Limiting plate; 11. Fixing frame; 12. Spray head; 13. Fixing base; 14. Connecting plate; 15. Motor No. 2; 16. Transmission mechanism; 17. Screw hole; 18. Bolt; 19. Buffer mechanism; 201. Support plate; 202. Clamping plate; 203. Threaded rod; 204. Double-acting screw; 1601. Rotating shaft; 1602. Large gear; 1603. Small gear; 1604. Transverse bevel gear; 1605. Longitudinal bevel gear; 1901. Fixing sleeve; 1902. Spring; 1903. Sliding block; 1904. Connecting arm. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figures 1 to 4 One embodiment provided by this utility model:

[0028] An automatic 360° spray nozzle angle adjustment device for a spraying drone includes a fixed outer shell 1 and an outer cylinder 7. A fixed plate 3 is fixedly installed at the center of the upper end face of the outer wall of the fixed outer shell 1. A clamping mechanism 2 is installed inside the fixed plate 3. The clamping mechanism 2 includes a bidirectional screw 204. Support plates 201 are threadedly sleeved at both ends of the outer wall of the bidirectional screw 204. Threaded rods 203 are rotatably installed at the center of the bottom end face of the inner wall of the two support plates 201. Clamping plates 202 are slidably installed inside the two support plates 201. A transmission mechanism 16 is installed inside the fixed outer shell 1. The transmission mechanism 16 includes a rotating shaft 1601, a large gear 1602, and a small gear 1603. A longitudinal bevel gear 1605 is fixedly sleeved on one side of the outer wall of the rotating shaft 1601. A transverse bevel gear 1604 is fixedly installed at the center of the upper end face of the small gear 1603. The large gear 1602 and the small gear 1603 are meshed. The longitudinal bevel gear 1605 and the transverse bevel gear 1604 are meshed.

[0029] An inner cylinder 6 is movably fitted inside the outer cylinder 7. A buffer mechanism 19 is provided on the bottom surface of the inner side of the outer cylinder 7. The buffer mechanism 19 includes two fixed sleeves 1901. A spring 1902 is fixedly installed on one side of the inner wall of each of the two fixed sleeves 1901. A sliding block 1903 is movably fitted inside each of the two fixed sleeves 1901. A connecting arm 1904 is hinged to one end of the upper surface of each of the two sliding blocks 1903. A connecting plate 14 is hinged to the center of one side of the lower end surface of the outer cylinder 7. A fixed frame 11 is rotatably installed at the center of one side of the connecting plate 14. Four fixed seats 13 are movably fitted on the outer wall of the fixed frame 11. A spray head 12 is fixedly installed at the center of the lower end surface of the outer wall of each of the four fixed seats 13. A limit plate 10 is slidably installed at the center of the other side of the lower end surface of the outer cylinder 7.

[0030] Specifically, the clamping mechanism 2 inside the fixing plate 3 enables quick installation and connection between the device and different types of drones. The transmission mechanism 16 can adjust the spray angle of the water nozzle 12, thereby reducing the operator's workload. The buffer mechanism 19 can buffer the vibration caused by the drone's flight attitude when adjusting the spray angle of the water nozzle 12, thereby improving the spraying stability. The rotating fixing frame 11 can adjust the spray elevation angle of the multiple water nozzles 12 fixed on its outer wall.

[0031] Reference Figures 1 to 3 Both support plates 201 are slidably disposed inside the fixed plate 3, and two clamping plates 202 are threadedly sleeved on the outer walls of the two threaded rods 203 respectively. The two ends of the bidirectional screw 204 are rotatably connected to the center of the two end faces of the inner wall of the fixed plate 3 respectively.

[0032] Specifically, the height of the two clamping plates 202 can be adjusted by rotating the two threaded rods 203, and the distance between the two support plates 201 can be adjusted by rotating the bidirectional screw 204, thereby enabling the device to be quickly connected to drones of different specifications.

[0033] Reference Figure 2 The two ends of the rotating shaft 1601 are rotatably connected to the center of the two end faces of the inner wall of the fixed housing 1, the large gear 1602 is rotatably set at the center of the bottom end face of the inner wall of the fixed housing 1, and the small gear 1603 is rotatably set at the center of one side of the bottom end face of the inner wall of the fixed housing 1.

[0034] Specifically, the meshing design of the large gear 1602 and the small gear 1603 can reduce the transmission speed of the No. 1 motor 4, thereby making the rotation angle provided by the large gear 1602 more precise.

[0035] Reference Figure 2 , Figure 4Two fixed sleeves 1901 are respectively fixedly installed at the center of both sides of the bottom end face of the inner wall of the outer cylinder 7. Two sliding blocks 1903 are slidably connected to the bottom end face of the inner wall of the outer cylinder 7 and are respectively fixedly connected to one end of two springs 1902. Two connecting arms 1904 are hinged to the top end face of the inner wall of the inner cylinder 6.

[0036] Specifically, when the drone vibrates, the inner cylinder 6 and the outer cylinder 7 extend and retract, which changes the lateral distance between the two ends of the two connecting arms 1904. This allows the two connecting arms 1904 to push the two sliding blocks 1903 into the two fixed sleeves 1901 and compress the two springs 1902. The two springs 1902 provide a tendency to reset the two sliding blocks 1903, thus buffering the vibration.

[0037] Reference Figure 1 , Figure 2 A connecting shaft is fixedly installed at the center of the lower end face of the large gear 1602. A bearing 5 is rotatably installed at the center of the lower end face of the outer wall of the fixed housing 1. The connecting shaft is fixedly connected to the inner wall of the bearing 5 and to the center of the upper end face of the outer wall of the inner cylinder 6. The inner cylinder 6 is fixedly connected to the outer ring of the bearing 5, and the fixed housing 1 is fixedly connected to the inner ring of the bearing 5.

[0038] Specifically, the bearing 5 can improve the structural stability of the connection between the fixed outer shell 1 and the inner cylinder 6 without affecting the rotation effect of the inner cylinder 6.

[0039] Reference Figure 2 The lower end face of the fixing bracket 11 has multiple screw holes 17 at the center. The lower end face of the four fixing seats 13 is threaded with bolts 18 at the center of both sides. The multiple bolts 18 are threaded into one of the screw holes 17.

[0040] Specifically, by engaging the bolt 18 with the screw hole 17, the fixed base 13 can be secured, thereby enabling the quick installation of the spray head 12.

[0041] Reference Figures 1 to 3 A connecting rod 8 is rotatably provided at the center of the side of the fixed frame 11 near the limiting plate 10. The connecting rod 8 slides through one side of the limiting plate 10, and a fixing nut 9 is threadedly fitted on one side of the outer wall of the connecting rod 8.

[0042] Specifically, by threading the fixing nut 9 onto the outer wall of the connecting rod 8, the sliding of the limiting plate 10 can be restricted, thereby achieving the effect of fixing the folding angle of the connecting plate 14.

[0043] Reference Figures 1 to 3A first motor 4 is fixedly installed on one side of the outer wall of the fixed housing 1. The output end of the first motor 4 is fixedly connected to one end of the rotating shaft 1601. A second motor 15 is fixedly installed on one side of the connecting plate 14. The output end of the second motor 15 is fixedly connected to one end of the fixed frame 11.

[0044] Specifically, the rotating shaft 1601 is driven by motor 4 to rotate, which in turn drives the fixed frame 11 to rotate horizontally. Motor 15 can directly drive the fixed frame 11 to rotate vertically, thereby increasing the spraying range of the spray head 12. Each spray head 12 has a water pipe fixedly installed at its rear end, and the water pipes are connected to the water pump and the water storage tank. This is a mature existing technology, so it will not be described in detail.

[0045] Working principle: Two support plates 201 are respectively snapped onto both sides of the drone. Then, rotating the bidirectional screw 204 causes the two support plates 201 to move in opposite directions to clamp the sides of the drone. Then, rotating the two threaded rods 203 causes the two clamping plates 202 to move downwards to clamp and fix the top of the drone. During the spraying process, the first motor 4 is started to drive the rotating shaft 1601 to rotate. This allows the transverse bevel gear 1604 and the longitudinal bevel gear 1605 to drive the large gear 1602 and the small gear 1603 to rotate, which in turn drives the inner cylinder and the outer cylinder 7 to rotate. This allows for the adjustment of the horizontal spray angle of the water nozzle 12 on the outer wall of the fixing frame 11. Simultaneously, the fixed frame 11 can be vertically flipped directly by the second motor 15, thereby adjusting the spray angle of the spray head 12. At the same time, when the aircraft vibrates during flight or spray angle adjustment, the spring 1902 and connecting arm 1904 inside the buffer mechanism 19 can provide a buffering effect to ensure spray stability. Meanwhile, the fixed nut 9 is rotated to remove it from the outer wall of the connecting rod 8, and then the limiting plate 10 is slid to one side to remove it from the outer wall of the connecting rod 8. At this time, the connecting plate 14 flips under the action of gravity, and the fixed seat 13 on the outer wall of the fixed frame 11 can be added. This allows for quick adjustment of the number of spray heads 12 according to actual usage needs.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A 360° automatic adjustment device for the angle of a drone nozzle for spraying, comprising a fixed housing (1) and an outer cylinder (7), characterized in that: The fixed shell (1) is provided with a fixed plate (3) at the center of the upper end face of the outer wall, and the fixed plate (3) is provided with a clamping mechanism (2) inside, the clamping mechanism (2) includes a bidirectional screw rod (204), the outer wall of the bidirectional screw rod (204) is provided with a support plate (201) at both ends, the inner wall of the support plate (201) is provided with a threaded rod (203) at the center of the bottom end face, the support plate (201) is provided with a clamping plate (202) inside, the fixed shell (1) is provided with a transmission mechanism (16) inside, the transmission mechanism (16) includes a rotating shaft (1601), a large gear (1602) and a small gear (1603), the rotating shaft (1601) is provided with a longitudinal bevel gear (1605) on one side of the outer wall, the small gear (1603) is provided with a transverse bevel gear (1604) at the center of the upper end face, the large gear (1602) and the small gear (1603) are meshed, and the longitudinal bevel gear (1605) and the transverse bevel gear (1604) are meshed; The outer cylinder (7) is movably sleeved with an inner cylinder (6) inside, the inner bottom end face of the outer cylinder (7) is provided with a buffer mechanism (19), the buffer mechanism (19) includes two fixed sleeves (1901), the fixed sleeve (1901), the inner wall of the fixed sleeve (1901) is provided with a spring (1902) on one side, the inner wall of the fixed sleeve (1901) is movably sleeved with a sliding block (1903) inside, the upper end face of the sliding block (1903) is hingedly connected with a connecting arm (1904) on one side, the outer wall of the outer cylinder (7) is hingedly connected with a connecting plate (14) on one side at the center of the lower end face, the connecting plate (14) is rotatably provided with a fixed frame (11) at the center on one side, the outer wall of the fixed frame (11) is movably sleeved with four fixed seats (13), the outer wall of the fixed seat (13) is provided with a water spraying head (12) at the center of the lower end face, and the lower end face of the outer cylinder (7) is slidably provided with a limiting plate (10) on the other side.

2. The 360° automatic adjustment device for the angle of the spray head of a drone for spraying according to claim 1, characterized in that: The two support plates (201) are movably arranged in the fixed plate (3), and the two clamping plates (202) are threadedly sleeved on the outer walls of the two threaded rods (203), respectively.

3. The angle 360° automatic adjustment device for unmanned aerial vehicle spray head according to claim 1, characterized in that: The two ends of the rotating shaft (1601) are rotatably connected with the inner walls of the fixed shell (1) at the centers of the two end faces, the large gear (1602) is rotatably arranged at the center of the inner bottom end face of the fixed shell (1), and the small gear (1603) is rotatably arranged at the center of the inner bottom end face of the fixed shell (1).

4. The 360° automatic adjustment device for the angle of the spray head of a drone for spraying according to claim 1, characterized in that: The two fixed sleeves (1901) are fixedly arranged at the centers of the inner bottom end faces of the outer cylinder (7) on both sides, respectively, the sliding blocks (1903) are slidably connected with the inner bottom end face of the outer cylinder (7) and are fixedly connected with one end of the two springs (1902), respectively, and the connecting arms (1904) are hingedly arranged with the inner top end face of the inner cylinder (6).

5. The 360° automatic adjustment device for the angle of the spray head of a drone for spraying according to claim 1, characterized in that: The lower end surface of the large gear (1602) is fixedly provided with a connecting shaft, the lower end surface of the outer wall of the fixed shell (1) is rotatably provided with a bearing (5), the connecting shaft is fixedly connected with the inner wall of the bearing (5) and the upper end surface of the outer wall of the inner cylinder (6), the inner cylinder (6) is fixedly connected with the outer ring of the bearing (5), and the fixed shell (1) is fixedly connected with the inner ring of the bearing (5).

6. The angle 360° automatic adjustment device for unmanned aerial vehicle spray head according to claim 1, characterized in that: A plurality of screw holes (17) are formed in the center of the lower end surface of the fixed frame (11), bolts (18) are threadedly embedded on the outer wall of the lower end surface of the four fixed seats (13) on both sides of the center, and the plurality of bolts (18) are respectively threadedly embedded in one of the plurality of screw holes (17).

7. The angle 360° automatic adjustment device for unmanned aerial vehicle spray head according to claim 1, characterized in that: The connecting rod (8) is rotatably arranged at the center of one side of the fixed frame (11) close to the limiting plate (10), the connecting rod (8) slides through one side of the limiting plate (10), and the connecting rod (8) is provided with a fixed nut (9) on one side of the outer wall.

8. The angle 360° automatic adjustment device for unmanned aerial vehicle spray head according to claim 1, characterized in that: The outer wall of the fixed shell (1) is fixedly provided with a first motor (4), the output end of the first motor (4) is fixedly connected with one end of the rotating shaft (1601), the connecting plate (14) is fixedly provided with a second motor (15) on one side, and the output end of the second motor (15) is fixedly connected with one end of the fixed frame (11).

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