Unmanned aerial vehicle pesticide spraying device

Abstract

The utility model discloses an unmanned aerial vehicle pesticide spraying device, and relates to the technical field of unmanned aerial vehicle pesticide spraying, the unmanned aerial vehicle pesticide spraying device comprises an unmanned aerial vehicle main body, the four corners of the unmanned aerial vehicle main body are all fixedly provided with machine arms, the outer ends of the machine arms are all provided with flying wings, and the bottom of the unmanned aerial vehicle main body is fixedly provided with a water tank; and a spraying mechanism is fixedly mounted at the bottom of the water tank. By the adoption of the structure, the spraying set linkage piece and the driving set work cooperatively, the spraying coverage range is expanded, when equipment runs, the driving motor drives the gear to enable the gear ring and the sliding ring to rotate, the sliding ring drives the bottom rail, the guide arm of the movable block on the bottom rail interacts with the guide frame, and the guide arm rotates along with the bottom rail; the telescopic spring pulls the guide wheel to be attached to the annular rail, when the guide wheel makes contact with the guide frame, the movable block and the spray head are pushed to move outwards, after the guide wheel crosses the guide frame, the telescopic spring pulls the spray head to move inwards, the spray head telescopically swings in a reciprocating mode in the rotating process, and the pesticide spraying covering effect and efficiency are greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of drone spraying technology, and specifically relates to a drone spraying device. Background Technology

[0002] With the booming development of modern agriculture, drone spraying technology, as an efficient means of agricultural plant protection, is being increasingly widely used in large-scale crop planting areas such as farmland, orchards, and tea gardens, as well as in the field of forestry pest and disease control. Compared with traditional manual spraying and ground-based mechanical spraying methods, drone spraying has many significant advantages, such as the ability to quickly cover large areas, effectively reduce manual input, reduce labor intensity, and avoid direct contact between operators and pesticides, which greatly promotes the modernization of agricultural production.

[0003] However, a thorough analysis of the current situation of drone spraying operations reveals some obvious defects that seriously restrict its further development and widespread application. The most prominent problem is that the spraying part at the bottom of the drone has a limited radiation range during flight. The layout and design of the nozzles of most drone spraying devices on the market are inherently insufficient in terms of spray coverage. In actual operation, the number and type of nozzles, as well as the combined effects of various factors such as the drone's flight altitude, speed and attitude stability, make it impossible to achieve a wider and more comprehensive coverage of the target area during spraying.

[0004] The direct consequence of insufficient spray coverage is a significant reduction in spray uniformity. In farmland and other operational scenarios, some areas may not be able to effectively control pests and diseases due to insufficient spray dosage, and crop growth may not be adequately guaranteed. The limitation of spray coverage area means that when drones are conducting large-scale operations, they need to frequently fly back and forth and overlap to fill the coverage gaps. This undoubtedly greatly reduces operational efficiency, prolongs the overall operation time, increases the energy consumption and mechanical wear of drones, and further increases operational costs. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a drone spraying device to solve the problem that the existing technology has poor spraying radiation capability and cannot spray more evenly and widely.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A drone spraying device includes a drone body, with arms fixedly installed at each of the four corners of the drone body, and flight wings installed at the outer ends of the arms. A water tank is fixedly installed at the bottom of the drone body, and a spraying mechanism is fixedly installed at the bottom of the water tank.

[0008] The spraying mechanism includes an annular displacement group and a water pump. The annular displacement group is fixedly installed at the bottom of the water tank. Spraying groups are fixedly installed at equal intervals in a ring at the bottom of the annular displacement group. The water pump is fixedly installed in the middle of the bottom of the water tank. The input end of the water pump is connected to the inside of the water tank. The output end of the water pump is provided with a rotary joint. The spraying groups are connected to the rotary joint through a hose.

[0009] Furthermore, the annular displacement assembly includes support legs and a drive assembly. The drive assembly is fixedly installed on one side of the bottom of the water tank, and the support legs are fixedly installed at the four corners of the bottom of the water tank. An annular rail is fixedly installed at the bottom of the support legs, and a slip ring is slidably connected inside the annular rail. The spray assembly is arranged in a ring and installed at the bottom of the slip ring. A toothed ring is fixedly installed on the inner side of the slip ring, and the drive assembly and the toothed ring are meshed together.

[0010] Furthermore, the drive assembly includes a fixed arm, which is fixedly installed on one side of the bottom of the water tank. A drive motor is fixedly installed at the bottom of the fixed arm, and a gear is fixedly installed through the output end of the drive motor, which meshes with a gear ring.

[0011] Furthermore, the spraying assembly includes a fixing block, which is fixedly installed on the bottom of the slip ring. A bottom rail is fixedly installed on the bottom of the fixing block. A telescopic spring is fixedly installed inside the bottom rail. A spray pipe bracket is provided at the outer end of the telescopic spring. The spray pipe bracket is connected to a flexible hose and a rotary joint. A linkage component is provided on the outer side of the spray pipe bracket.

[0012] Furthermore, the spray pipe frame includes a movable block, which is slidably connected to the inside of the bottom rail. A delivery pipe is fixedly installed at the bottom of the movable block. The input end of the delivery pipe is connected to a flexible hose and a rotary joint. Spray nozzles are fixedly installed at equal intervals in a linear arrangement at the bottom of the delivery pipe.

[0013] Furthermore, the linkage includes a guide frame and a guide arm. The guide frame is fixedly installed on the outside of the annular tube in a ring-shaped arrangement with equal spacing. The guide arm is fixedly installed on the outside of the movable block. A hinge seat is fixedly installed at the upper end of the guide arm. A guide wheel is rotatably connected inside the hinge seat. The guide wheel and the guide frame are connected in a transmission manner. The guide frame is generally triangular in shape.

[0014] Furthermore, a water inlet pipe is fixedly installed on one side of the top of the water tank, and a sealing knob cover is fixedly installed on the top of the water inlet pipe.

[0015] In summary, the present invention has the following main advantages:

[0016] First, this device, by setting up a spraying mechanism on the main body of the drone, can greatly enhance the efficiency of spraying operations. In actual operation, the drive motor is started, and the motor drives the gear to rotate. The rotation of the gear further drives the gear ring to perform circumferential motion. The rotation of the gear ring causes the slip ring to rotate synchronously. Since the slip ring is nested inside the ring rail, its rotation can drive the various spraying groups connected to the bottom to rotate around the axis. During the rotation of the spraying groups, the spraying pipe frame is also in a state of rotation. At the same time, the water pump is started, and the water pump draws out the liquid medicine in the water tank and delivers it to the delivery pipe through the rotary joint and hose. Finally, the spraying nozzles spray the liquid medicine evenly. By driving the spraying nozzles to rotate, this device can achieve efficient and uniform spraying operations, ensuring that the liquid medicine can evenly cover the area below the drone's flight path. The centrifugal force generated by the rotation can significantly increase the spraying coverage area and effectively improve the spraying effect. In addition, the spraying nozzles set at equal intervals and the rotating design work together to further improve the spraying uniformity and effectively avoid the problem of uneven spraying.

[0017] Secondly, this device further expands the spray coverage area by setting up a linkage mechanism between the spraying group and the drive group. During operation, the drive motor drives the gear, which in turn rotates the gear ring, causing the slip ring to rotate. Simultaneously, the slip ring rotates, causing the bottom rail to move as well. The guide arm on the outer side of the movable block on the bottom rail interacts with the guide frame. When the guide arm rotates with the bottom rail, the restoring force of the telescopic spring pulls the guide arm inward, causing the guide wheel on the hinge seat to tightly contact the outer side of the annular rail. As the slip ring continues to rotate, the guide wheel contacts the guide frame, thus guiding the... Under the squeezing action of the frame, the guide wheel drives the guide arm to push the movable block outward, thereby causing the delivery pipe and the various spray nozzles connected to its bottom to move outward synchronously. After the guide wheel passes the guide frame, the telescopic spring returns to its original position, pulling the delivery pipe and the spray nozzles at its bottom inward. In this way, during the rotation of the spray nozzles, a reciprocating telescopic motion is achieved, enabling each spray nozzle to swing back and forth. This unique design greatly expands the spraying coverage range, significantly improves the overall spraying coverage effect of the equipment, and greatly increases the spraying efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a bottom view structural diagram of this utility model;

[0020] Figure 3 This is a top view schematic diagram of the spraying mechanism of this utility model;

[0021] Figure 4 This is a bottom view schematic diagram of the spraying mechanism of this utility model.

[0022] Reference numerals: 1. UAV body; 2. Arm; 3. Spraying mechanism; 31. Annular displacement group; 311. Support leg; 312. Drive group; 3121. Fixed arm; 3122. Drive motor; 3123. Gear; 313. Annular rail; 32. Rotary joint; 33. Spraying group; 331. Fixed block; 332. Bottom rail; 333. Telescopic spring; 334. Spraying pipe frame; 3341. Movable block; 3342. Delivery pipe; 3343. Spray nozzle; 335. Linkage component; 3351. Guide frame; 3352. Guide arm; 3353. Hinge seat; 3354. Guide wheel; 34. Slip ring; 35. Gear ring; 36. Water pump; 4. Water tank; 5. Flight wing; 6. Water filling pipe; 7. Sealing knob cover. Detailed Implementation

[0023] Example

[0024] refer to Figures 1 to 4 The drone spraying device described in this embodiment includes a drone body 1, with arms 2 fixedly installed at each of the four corners of the drone body 1, and flight wings 5 ​​installed at the outer ends of each arm 2. A water tank 4 is fixedly installed at the bottom of the drone body 1, and a spraying mechanism 3 is fixedly installed at the bottom of the water tank 4.

[0025] The spraying mechanism 3 includes an annular displacement assembly 31 and a water pump 36. The annular displacement assembly 31 is fixedly installed at the bottom of the water tank 4. Spraying units 33 are fixedly installed at equal intervals in a ring at the bottom of the annular displacement assembly 31. The water pump 36 is fixedly installed in the middle of the bottom of the water tank 4. The input end of the water pump 36 is connected to the inside of the water tank 4. The output end of the water pump 36 is provided with a rotary joint 32. The spraying units 33 are connected to the rotary joint 32 through a hose. When this drone spraying device is working, the drone body 1 relies on the flight wings 5 ​​at the outer ends of the four arms 2 to provide lift for flight. When spraying is to be carried out, the water pump 36 located in the middle of the bottom of the water tank 4 is started. Since its input end is connected to the inside of the water tank 4, it can draw out the liquid pesticide from the water tank 4. The rotary joint 32 at the output end of the water pump 36 can deliver the liquid pesticide without affecting the rotation of the components. At this time, the annular displacement group 31 operates, driving the spraying group 33 arranged in annular shape at equal intervals at the bottom to move. At the same time, the spraying group 33, which is connected to the rotary joint 32 through a hose, receives the liquid pesticide delivered by the rotary joint 32 and sprays it out, thereby completing the spraying operation of the drone in the air and realizing the spraying of pesticides on the target area.

[0026] refer to Figures 3-4The annular displacement assembly 31 includes a support leg 311 and a drive assembly 312. The drive assembly 312 is fixedly installed on one side of the bottom of the water tank 4. The support leg 311 is fixedly installed at the four corners of the bottom of the water tank 4. An annular rail 313 is fixedly installed at the bottom of the support leg 311. A slip ring 34 is slidably connected inside the annular rail 313. The spray assembly 33 is arranged in a ring and installed at the bottom of the slip ring 34. A gear ring 35 is fixedly installed on the inner side of the slip ring 34. The drive assembly 312 and the gear ring 35 are meshed together. The drive assembly 312 includes a fixed arm 3121. The fixed arm 3121 is fixedly installed on one side of the bottom of the water tank 4. A drive motor 3122 is fixedly installed at the bottom of the fixed arm 3121. A gear 312 is fixedly installed through the fixed arm 3121 at the output end of the drive motor 3122. 3. The gear 3123 and the toothed ring 35 are meshed together. During use, when the drone spraying device starts spraying, the drive group 312 comes into play. The drive motor 3122, which is installed on the fixed arm 3121 at the bottom of the water tank 4, starts and its output end drives the gear 3123 to rotate. Since the gear 3123 meshes with the toothed ring 35 fixedly installed inside the slip ring 34, the rotation of the gear 3123 will drive the toothed ring 35 to rotate, which in turn drives the slip ring 34 connected to the toothed ring 35 to slide inside the annular rail 313 fixed at the bottom of the support leg 311. The spraying group 33, which is arranged in a ring at the bottom of the slip ring 34, will make a circular motion as the slip ring 34 slides. In this way, the spraying group 33 can spray the liquid medicine delivered by the water pump 36 more widely and evenly during the rotation, thereby improving the coverage and effect of the spraying.

[0027] refer to Figures 3-4The spray assembly 33 includes a fixing block 331, which is fixedly installed on the bottom of a slip ring 34. A bottom rail 332 is fixedly installed on the bottom of the fixing block 331. A telescopic spring 333 is fixedly installed inside the bottom rail 332. A spray pipe bracket 334 is provided at the outer end of the telescopic spring 333. The spray pipe bracket 334 is connected to a swivel joint 32 via a hose. A linkage 335 is provided on the outer side of the spray pipe bracket 334. The spray pipe bracket 334 includes a movable block 3341, which is slidably connected to the inside of the bottom rail 332. A delivery pipe 3342 is fixedly installed at the bottom of the movable block 3341. The input end of 2 is connected to a hose and a rotary joint 32. Spray nozzles 3343 are fixedly installed at equal intervals in a linear arrangement at the bottom of the delivery pipe 3342. The linkage 335 includes a guide frame 3351 and a guide arm 3352. The guide frame 3351 is fixedly installed on the outside of the annular pipe at equal intervals in a ring shape. The guide arm 3352 is fixedly installed on the outside of the movable block 3341. A hinge seat 3353 is fixedly installed at the upper end of the guide arm 3352. A guide wheel 3354 is rotatably connected inside the hinge seat 3353. The guide wheel 3354 and the guide frame 3351 are connected in a driving connection. The guide frame 3351 is generally triangular in shape. The water... A water inlet pipe 6 is fixedly installed on one side of the top of the tank 4. A sealing knob cover 7 is fixedly installed on the top of the water inlet pipe 6. During use, when the drone spraying device is running, the slip ring 34 rotates, causing the fixed block 331 fixed at its bottom to rotate, which in turn causes the bottom rail 332 to rotate. One end of the telescopic spring 333 inside the bottom rail 332 is fixed, and the other end is connected to the movable block 3341 of the spray pipe frame 334. The water pump 36 delivers the liquid medicine in the water tank 4 to the delivery pipe 3342 through the rotary joint 32 and the hose, and then sprays it out from the spray nozzle 3343 at the bottom of the delivery pipe 3342. At the same time, the guide arm 3352 on the outside of the movable block 3341 rotates with the bottom rail 332, and its upper end hinge seat 33 The guide wheel 3354 inside 53 drives the guide frame 3351 arranged in a ring at equal intervals on the outside of the annular tube. Since the guide frame 3351 is triangular, when the guide wheel 3354 contacts the guide frame 3351, it will be squeezed, causing the guide arm 3352 to drive the movable block 3341 to overcome the tension of the telescopic spring 333 and move outward along the bottom rail 332, driving the delivery pipe 3342 and the spray nozzle 3343 to move outward. After the guide wheel 3354 passes the guide frame 3351, the telescopic spring 333 returns to its original position and pulls the movable block 3341 inward. In this way, the spray nozzle 3343 reciprocates and swings during rotation, expanding the spray coverage area. The water tank 4 can be filled with water through the water filling pipe 6, and after filling, it is sealed with the sealing knob cover 7.

[0028] Operating principle and advantages: This device, by setting up a spraying mechanism 3 on the main body 1 of the drone, can greatly enhance the efficiency of spraying operations. In actual operation, the drive motor 3122 is started, and the motor drives the gear 3123 to rotate. The rotation of the gear 3123 further drives the gear ring 35 to perform circumferential motion. The rotation of the gear ring 35 causes the slip ring 34 to rotate synchronously. Since the slip ring 34 is nested inside the annular rail 313, its rotation can drive the various spraying groups 33 connected to the bottom to rotate around the axis. During the rotation of the spraying group 33, the spraying pipe frame 334 also rotates. At the same time, the water pump is started. 36. The water pump 36 draws out the liquid medicine from the water tank 4 and delivers it to the delivery pipe 3342 through the rotary joint 32 and the hose. Finally, the liquid medicine is evenly sprayed out by the spray nozzle 3343. By driving the spray nozzle 3343 to rotate, this device can achieve efficient and uniform spraying operation, ensuring that the liquid medicine can evenly cover the area below the flight path of the drone. The centrifugal force generated by the rotation can significantly increase the spraying coverage area and effectively improve the spraying effect. In addition, the spray nozzles 3343 set at equal intervals and the rotating design work together to further improve the spraying uniformity and effectively avoid the problem of uneven spraying.

[0029] This device further expands the spray coverage area by setting up a coordinated working mechanism between the linkage 335 of the spraying group 33 and the drive group 312. When the equipment is running, the drive motor 3122 drives the gear 3123, which in turn drives the gear ring 35 to rotate, causing the slip ring 34 to rotate. As the slip ring 34 rotates, it drives the bottom rail 332 to rotate as well. The guide arm 3352 on the outer side of the movable block 3341 on the bottom rail 332 interacts with the guide frame 3351. When the guide arm 3352 rotates with the bottom rail 332, the restoring force of the telescopic spring 333 pulls the guide arm 3352 to move inward, so that the guide wheel 3354 on the hinge seat 3353 is tightly attached to the outer side of the annular rail 313. As the slip ring 34 continues to rotate, the guide wheel 3354 and the guide frame 3351 interact. When the guide frame 3351 contacts the guide, under the squeezing action of the guide frame 3351, the guide wheel 3354 drives the guide arm 3352 to push the movable block 3341 outward, thereby causing the conveying pipe 3342 and the various spray nozzles 3343 connected to its bottom to move outward synchronously. After the guide wheel 3354 passes the guide frame 3351, the telescopic spring 333 returns to its original position, pulling the conveying pipe 3342 and the spray nozzles 3343 at its bottom to move inward. In this way, during the rotation of the spray nozzles 3343, a reciprocating telescopic motion is achieved, enabling each spray nozzle 3343 to swing back and forth. This unique design greatly expands the spraying radiation range, significantly improves the overall spraying coverage effect of the equipment, and greatly improves the spraying efficiency.

Claims

1. A drone spraying device, comprising a drone body (1), characterized in that: Arms (2) are fixedly installed at the four corners of the main body (1) of the drone. Flight wings (5) are installed at the outer ends of the arms (2). A water tank (4) is fixedly installed at the bottom of the main body (1) of the drone. A spraying mechanism (3) is fixedly installed at the bottom of the water tank (4). The spraying mechanism (3) includes an annular displacement group (31) and a water pump (36). The annular displacement group (31) is fixedly installed at the bottom of the water tank (4). Spraying groups (33) are fixedly installed at equal intervals in a ring at the bottom of the annular displacement group (31). The water pump (36) is fixedly installed in the middle of the bottom of the water tank (4). The input end of the water pump (36) is connected to the inside of the water tank (4). The output end of the water pump (36) is provided with a rotary joint (32). The spraying group (33) is connected to the rotary joint (32) through a hose.

2. The drone spraying device according to claim 1, characterized in that: The annular displacement assembly (31) includes a support leg (311) and a drive assembly (312). The drive assembly (312) is fixedly installed on one side of the bottom of the water tank (4). The support leg (311) is fixedly installed at the four corners of the bottom of the water tank (4). An annular rail (313) is fixedly installed at the bottom of the support leg (311). A slip ring (34) is slidably connected inside the annular rail (313). The spray assembly (33) is arranged in a ring and installed at the bottom of the slip ring (34). A toothed ring (35) is fixedly installed on the inner side of the slip ring (34). The drive assembly (312) and the toothed ring (35) are meshed together.

3. The drone spraying device according to claim 2, characterized in that: The drive assembly (312) includes a fixed arm (3121), which is fixedly installed on one side of the bottom of the water tank (4). A drive motor (3122) is fixedly installed at the bottom of the fixed arm (3121). A gear (3123) is fixedly installed through the fixed arm (3121) at the output end of the drive motor (3122). The gear (3123) is meshed with a gear ring (35).

4. The drone spraying device according to claim 3, characterized in that: The spraying assembly (33) includes a fixing block (331), which is fixedly installed on the bottom of the slip ring (34). A bottom rail (332) is fixedly installed on the bottom of the fixing block (331). A telescopic spring (333) is fixedly installed inside the bottom rail (332). A spray pipe bracket (334) is provided at the outer end of the telescopic spring (333). The spray pipe bracket (334) is connected to a swivel joint (32) through a hose. A linkage (335) is provided on the outer side of the spray pipe bracket (334).

5. The drone spraying device according to claim 4, characterized in that: The spray pipe rack (334) includes a movable block (3341), which is slidably connected to the inside of the bottom rail (332). A delivery pipe (3342) is fixedly installed at the bottom of the movable block (3341). The input end of the delivery pipe (3342) is connected to a flexible hose and a rotary joint (32). Spray nozzles (3343) are fixedly installed at equal intervals in a linear arrangement at the bottom of the delivery pipe (3342).

6. The drone spraying device according to claim 5, characterized in that: The linkage component (335) includes a guide frame (3351) and a guide arm (3352). The guide frame (3351) is fixedly installed on the outside of the annular tube in a ring-shaped arrangement with equal spacing. The guide arm (3352) is fixedly installed on the outside of the movable block (3341). A hinge seat (3353) is fixedly installed on the upper end of the guide arm (3352). A guide wheel (3354) is rotatably connected inside the hinge seat (3353). The guide wheel (3354) and the guide frame (3351) are connected in a transmission. The guide frame (3351) is generally triangular in shape.

7. The drone spraying device according to claim 1, characterized in that: A water inlet pipe (6) is fixedly installed on one side of the top of the water tank (4), and a sealing knob cover (7) is fixedly installed on the top of the water inlet pipe (6).

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