A forestry UAV spraying device

Abstract

The present invention discloses a forestry UAV spraying device, which relates to the technical field of drug spraying. It includes a UAV body and a liquid storage tank arranged on the UAV body. A water pump is arranged at the bottom of the liquid storage tank, and a first U-shaped pipe is arranged at the bottom of the water pump. Both ends of the first U-shaped pipe are fixedly connected through a second U-shaped pipe. Two groups of spraying structures are arranged outside the UAV body. The spraying structure includes two bottom plates and a storage box. The bottom plates and the storage box are fixedly connected to the UAV body. A storage rack is fixedly connected between the bottoms of the two bottom plates. Two first sliders are slidably arranged inside the storage rack, and a movable plate is rotatably connected to the bottom of the first slider. The forestry UAV spraying device of the present invention can solve the problem that the nozzle of the UAV cannot be adjusted as needed during flight spraying operations, resulting in waste due to the repeated spraying areas of the front and rear nozzles in the forward direction.

Description

Technical Field

[0001] The present invention relates to the technical field of drug spraying, and particularly relates to a forestry UAV spraying device. Background Art

[0002] When spraying drugs on rows of large-scale saplings or trees, UAVs are usually used. Workers remotely control the UAVs to spray drugs on the trees, which improves work efficiency and work safety on the one hand.

[0003] However, traditional UAV spraying devices usually install the nozzles around the UAV, that is, below the propellers at the surrounding positions of the UAV. Generally, a UAV has four propellers, and the positions of the nozzles below the propellers are not adjustable. In this case, whether the UAV flies horizontally or vertically, the spraying trajectories of the two nozzles at the back and the two nozzles at the front in the advancing direction will always repeat. Although the spraying amount in the sprayed area can be increased, it often causes over-spraying or waste of drugs, and the four nozzles at the front and back cannot be adjusted according to the advancing direction of the UAV to avoid the repetition of the spraying areas of the front and back nozzles in the advancing direction, improve the spraying range and reduce waste. Therefore, the present invention proposes a forestry UAV spraying device. Summary of the Invention

[0004] The main purpose of the present invention is to provide a forestry UAV spraying device, which can effectively solve the technical problems proposed in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] A forestry UAV spraying device includes a UAV body and a liquid storage tank arranged on the UAV body. A water pump is arranged at the bottom of the liquid storage tank, a U-shaped pipe I is arranged at the bottom of the water pump, both ends of the U-shaped pipe I penetrate and are fixedly connected with U-shaped pipes II, and two groups of spraying structures are arranged outside the UAV body;

[0007] The spraying structure includes two bottom plates and a storage box, the bottom plates and the storage box are both fixedly connected with the UAV body. A storage rack is fixedly connected between the bottoms of the two bottom plates. Two sliders I are slidably arranged inside the storage rack. The bottom of the slider I is rotatably connected with a movable plate, and a nozzle is fixedly arranged at the bottom of the movable plate. A connecting pipe penetrates and is fixedly connected to the outside of the nozzle. A motor is arranged at the top of the storage box, the output shaft of the motor penetrates the top of the storage box and is fixedly connected with a gear disk, the gear disk is meshed with two serrated plates, two limit blocks and a linkage rod are fixedly connected to the outside of the serrated plate, one end of the linkage rod penetrates the storage box and is fixedly connected with a connecting plate I, and the connecting plate I is fixedly connected with the corresponding slider I.

[0008] As a preferred technical solution of the present invention, the interior of the storage box is hollow, and the serrated plate, the linkage rod and the storage box are adaptively matched.

[0009] As a preferred technical solution of the present invention, the length of one connecting plate one is longer than that of the other connecting plate one, and the four bottom plates are respectively located around the drone body.

[0010] As a preferred technical solution of the present invention, a liquid inlet is provided at the top of the liquid storage tank, and an infusion tube is externally connected between the U-shaped tube two and the connecting tube before the device works.

[0011] As a preferred technical solution of the present invention, two sets of adjusting structures are provided outside the drone body. The adjusting structure includes a storage plate one, and the storage plate one is fixedly connected to the drone body. A multi-stage electric push rod is provided on the inner bottom surface of the storage plate one. One end of the multi-stage electric push rod is fixedly connected to a fixing frame one. Both ends of the fixing frame one are rotatably connected to a connecting arm. One end of the connecting arm is rotatably connected to a multi-stage telescopic rod. One end of the multi-stage telescopic rod is fixedly connected to a connecting plate two, and the connecting plate two is fixedly connected to the movable plate at the corresponding position.

[0012] As a preferred technical solution of the present invention, the adjusting structure further includes two convex blocks, the convex blocks are fixedly connected to the storage plate one, a sliding rod is fixedly connected between the two convex blocks, and a slider two is slidably arranged on the outer part of the sliding rod. The slider two is fixedly connected to the fixing frame one.

[0013] As a preferred technical solution of the present invention, the storage plate one and the slider two are both L-shaped, and ventilation grooves one are provided on the outer parts of the storage plate one and the connecting arm.

[0014] As a preferred technical solution of the present invention, two sets of auxiliary structures are provided on the top of the storage rack. The auxiliary structure includes a storage plate two, the storage plate two is fixedly connected to the storage rack, a plurality of hooks are fixedly connected to the bottom of the storage plate two, a fixing block is fixedly connected to the inner side of the hook, a guide rod penetrates through the top of the fixing block, one end of the guide rod is fixedly connected to a baffle, and a spring is arranged between the baffle and the fixing block.

[0015] As a preferred technical solution of the present invention, the spring is located around the corresponding guide rod, and the storage plate two is L-shaped.

[0016] As a preferred technical solution of the present invention, four fixing frames two are provided at the bottom of the drone body. Two storage rings are fixedly connected to the bottom of the fixing frame two. The fixing frame two is U-shaped, and two ventilation grooves two are provided on the outer part of the fixing frame two.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By setting the spraying structure, it is beneficial to adjust the positions of the nozzles on both sides of the UAV body, so that the two nozzles at the corresponding positions can move closer to the middle of the storage rack or move away from both ends of the storage rack, avoiding the front two nozzles and the rear two nozzles from spraying the same area repeatedly when the UAV body flies horizontally;

[0019] 2. By setting the adjustment structure in cooperation with the spraying structure, it is beneficial to make up for the deficiencies of the spraying structure, so that the nozzles at the front and rear parts of the UAV body can be adjusted in terms of angular position, so that the two nozzles at the corresponding positions can rotate towards both ends of the UAV body at the same time, or rotate towards the UAV body at the same time, ensuring that when the UAV body is in the longitudinal direction, the front two nozzles and the rear two nozzles will not spray the same area repeatedly. The adjustment structure in cooperation with the spraying structure improves the drug spraying range and avoids the situation that the front and rear four nozzles of the UAV body spray the same area repeatedly in the forward direction;

[0020] 3. By setting the auxiliary structure in cooperation with the spraying structure, it is beneficial to arrange the external infusion tube, avoid large-amplitude shaking during flight, which affects the spraying and flight stability, and at the same time can provide auxiliary support for the infusion tube;

[0021] 4. By setting the fixing frame II and the placing ring, it is beneficial for the fixing frame II and the placing ring to limit and support one end of the infusion tube, and at the same time, in cooperation with the auxiliary structure, it can play a role in guiding the route of the infusion tube;

[0022] 5. By setting the storage box in cooperation with the spraying structure, it is beneficial to protect the gear disk and the sawtooth plate, avoiding rust caused by external weather such as rain, which affects the work;

[0023] 6. By setting the sliding rod and the slider II in cooperation with the adjustment structure, it is beneficial to play an auxiliary limiting role on the fixing frame I, so that the up and down movement of the fixing frame I is restricted, and at the same time, the stability of the movement of the fixing frame I can be further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an overall three-dimensional structure diagram of a forestry UAV spraying device of the present invention;

[0025] Figure 2 It is a three-dimensional structure diagram of the split of the UAV body and the liquid storage tank of a forestry UAV spraying device of the present invention;

[0026] Figure 3 It is a three-dimensional sectional structure diagram of the storage box of a forestry UAV spraying device of the present invention;

[0027] Figure 4 This is a partial three-dimensional structural schematic diagram of a forestry UAV spraying device of the present invention;

[0028] Figure 5 This is a disassembled three-dimensional structural schematic diagram of the connecting arm and the first fixing frame of a forestry UAV spraying device of the present invention;

[0029] Figure 6 This is a three-dimensional structural schematic diagram of the first storage board of a forestry UAV spraying device of the present invention;

[0030] Figure 7 This is a three-dimensional structural schematic diagram of the second storage board of a forestry UAV spraying device of the present invention;

[0031] Figure 8 This is a three-dimensional structural schematic diagram of the hook of a forestry UAV spraying device of the present invention;

[0032] Figure 9 This is a three-dimensional structural schematic diagram of the second fixing frame of a forestry UAV spraying device of the present invention;

[0033] Figure 10 This is a front view structural schematic diagram of the whole of a forestry UAV spraying device of the present invention;

[0034] Figure 11 This is a side view structural schematic diagram of the whole of a forestry UAV spraying device of the present invention.

[0035] In the figure: 1, UAV body; 2, liquid storage tank; 3, water pump; 4, first U-shaped pipe; 5, second U-shaped pipe; 6, spraying structure; 7, adjusting structure; 8, auxiliary structure; 9, bottom plate; 10, storage rack; 11, storage box; 12, first slider; 13, movable plate; 14, nozzle; 15, connecting pipe; 16, motor; 17, gear disc; 18, serrated plate; 19, limit block; 20, linkage rod; 21, first connecting plate; 22, first storage board; 23, multi-stage electric push rod; 24, first fixing frame; 25, connecting arm; 26, multi-stage telescopic rod; 27, second connecting plate; 28, convex block; 29, sliding rod; 30, second slider; 31, second storage board; 32, hook; 33, fixed block; 34, guide rod; 35, baffle; 36, spring; 37, second fixing frame; 38, storage ring. Detailed implementation manners

[0036] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0037] As Figures 1 - 11As shown in the figure, a forestry UAV spraying device includes a UAV body 1 and a liquid storage tank 2 arranged on the UAV body 1. A water pump 3 is arranged at the bottom of the liquid storage tank 2, and a U-shaped pipe 1 is arranged at the bottom of the water pump 3. Both ends of the U-shaped pipe 1 are fixedly connected through a U-shaped pipe 2. Two groups of spraying structures 6 are arranged outside the UAV body 1;

[0038] The spraying structure 6 includes two bottom plates 9 and a storage box 11. The bottom plates 9 and the storage box 11 are both fixedly connected to the UAV body 1. A storage rack 10 is fixedly connected between the bottoms of the two bottom plates 9. Two sliders 12 are slidably arranged inside the storage rack 10. The bottom of the slider 12 is rotatably connected to a movable plate 13. A spray head 14 is fixedly arranged at the bottom of the movable plate 13. A connecting pipe 15 is fixedly connected through the outside of the spray head 14. A motor 16 is arranged on the top of the storage box 11. The output shaft of the motor 16 penetrates through the top of the storage box 11 and is fixedly connected to a gear disk 17. The gear disk 17 is meshed and connected with two serrated plates 18. Two limit blocks 19 and a linkage rod 20 are fixedly connected to the outside of the serrated plate 18. One end of the linkage rod 20 penetrates through the storage box 11 and is fixedly connected to a connecting plate 1. The connecting plate 1 is fixedly connected to the corresponding slider 12.

[0039] The spraying structure 6 can adjust the positions of the spray heads 14 on both sides of the UAV body 1, so that the two spray heads 14 at the corresponding positions can move closer to the middle of the storage rack 10 or move away from both ends of the storage rack 10, avoiding repeated spraying of the same area by the front two spray heads 14 and the rear two spray heads 14 when the UAV body 1 flies horizontally.

[0040] In this embodiment, the inside of the storage box 11 is hollow, and the serrated plate 18, the linkage rod 20 and the storage box 11 are adaptively matched.

[0041] The storage box 11 plays a protective role for the gear disk 17 and the serrated plate 18, avoiding rust caused by the influence of external rain and other weather, thus affecting the work.

[0042] In this embodiment, the length of one connecting plate 1 is longer than that of the other connecting plate 1, and the four bottom plates 9 are respectively located around the UAV body 1.

[0043] The two serrated plates 18 are arranged in a staggered manner, and the two connecting plates 1 are inconsistent in length to adapt to the corresponding serrated plates 18.

[0044] In this embodiment, a liquid inlet is arranged at the top of the liquid storage tank 2. Before the device works, an infusion pipe is externally connected between the U-shaped pipe 2 and the connecting pipe 15.

[0045] The drug liquid is poured from the liquid inlet, and the setting of the U-shaped pipe 2 facilitates the adaptation to the connecting pipe 15.

[0046] In this embodiment, two sets of adjusting structures 7 are arranged outside the UAV body 1. The adjusting structure 7 includes a first placing plate 22, and the first placing plate 22 is fixedly connected to the UAV body 1. A multi-stage electric push rod 23 is arranged on the inner bottom surface of the first placing plate 22. One end of the multi-stage electric push rod 23 is fixedly connected to a first fixing frame 24. Both ends of the first fixing frame 24 are rotatably connected to a connecting arm 25. One end of the connecting arm 25 is rotatably connected to a multi-stage telescopic rod 26. One end of the multi-stage telescopic rod 26 is fixedly connected to a second connecting plate 27, and the second connecting plate 27 is fixedly connected to the movable plate 13 at the corresponding position.

[0047] The adjusting structure 7 can make up for the deficiencies of the spraying structure 6, enabling the nozzles 14 at the front and rear of the UAV body 1 to adjust the angular positions, so that the two nozzles 14 at the corresponding positions can rotate towards the two ends of the UAV body 1 at the same time, or can rotate towards the UAV body 1 at the same time. It can ensure that when the UAV body 1 is in the longitudinal direction, the front two nozzles 14 and the rear two nozzles 14 will not spray the same area repeatedly. The adjusting structure 7 cooperates with the spraying structure 6 to improve the drug spraying range and avoid the situation where the four nozzles 14 at the front and rear of the UAV body 1 spray the same area repeatedly in the forward direction.

[0048] In this embodiment, the adjusting structure 7 further includes two convex blocks 28. The convex blocks 28 are fixedly connected to the first placing plate 22. A sliding rod 29 is fixedly connected between the two convex blocks 28. A second slider 30 is slidably arranged on the outer part of the sliding rod 29, and the second slider 30 is fixedly connected to the first fixing frame 24.

[0049] The sliding rod 29 and the second slider 30 play an auxiliary limiting role for the first fixing frame 24, which can limit the up and down movement of the first fixing frame 24 and further enhance the stability of the movement of the first fixing frame 24.

[0050] In this embodiment, both the first placing plate 22 and the second slider 30 are L-shaped, and ventilation grooves 1 are provided on the outer parts of the first placing plate 22 and the connecting arm 25.

[0051] The second slider 30 plays a limiting role for the first fixing frame 24.

[0052] In this embodiment, two sets of auxiliary structures 8 are arranged on the top of the placing rack 10. The auxiliary structure 8 includes a second placing plate 31, and the second placing plate 31 is fixedly connected to the placing rack 10. A plurality of hooks 32 are fixedly connected to the bottom of the second placing plate 31. A fixing block 33 is fixedly connected to the inner side of the hook 32. A guide rod 34 penetrates through the top of the fixing block 33. One end of the guide rod 34 is fixedly connected to a baffle 35, and a spring 36 is arranged between the baffle 35 and the fixing block 33.

[0053] The auxiliary structure 8 can arrange the external infusion tube to avoid large-scale shaking during flight that affects the spraying and flight stability, and can also provide auxiliary support for the infusion tube.

[0054] In this embodiment, the spring 36 is located at the periphery of the corresponding guide rod 34 , and the second storage plate 31 is L-shaped.

[0055] The spring 36 provides elastic support for the baffle 35 .

[0056] In this embodiment, four fixing frames 37 are arranged at the bottom of the drone body 1, two storage rings 38 are fixedly connected to the bottom of the fixing frames 37, the fixing frames 37 are U-shaped, and two ventilation slots 38 are arranged outside the fixing frames 37.

[0057] The second fixing frame 37 and the storage ring 38 can limit and support one end of the infusion tube, and can guide the route of the infusion tube in cooperation with the auxiliary structure 8.

[0058] It should be noted that the present invention is a forestry drone spraying device. Before use, the drone spraying device is placed in an open space where spraying is required, and the drug liquid is poured into the liquid inlet of the drone body 1. After the liquid storage tank 2 is filled, the liquid inlet is closed, and then an infusion tube is externally connected between the U-shaped tube 2 5 and the connecting tube 15. After the nozzle 14 is adjusted to a predetermined position or angle, it can reach the working operating conditions, and the staff can remotely control it to perform drug spraying operations. In addition, Figure 1 , Figure 10 as well as Figure 11 is the initial state of the device;

[0059] In the initial state, when installing the infusion tube, first connect one end of the infusion tube to the corresponding position of the U-shaped tube 25, pass the other end of the infusion tube through the corresponding storage ring 38, and then pull up the guide rod 34 at the corresponding position, so that the baffle 35 releases the restriction on the hook 32, put the infusion tube into the corresponding hook 32, and then release the guide rod 34. The spring 36 makes the baffle 35 and the guide rod 34 rebound to the initial position and restrict the infusion tube to the inside of the hook 32. After the infusion tube is put into the corresponding hook 32, connect the other end of the infusion tube to the connecting tube 15, and the connection and installation of the infusion tube can be completed.

[0060] In the initial state, when adjusting the angular positions of the two nozzles 14 at the front of the UAV body 1, first start the multi-stage electric push rod 23 at the front of the UAV body 1, so that it acts on the first fixing frame 24 to drive the corresponding two connecting arms 25 to move downward toward the first placing plate 22. The connecting arms 25 act on the multi-stage telescopic rod 26 to move toward the movable plate 13. The multi-stage telescopic rod 26 acts on the movable plate 13 through the second connecting plate 27 to drive the nozzle 14 to rotate in the opposite direction of the first fixing frame 24 until the nozzle 14 rotates to a predetermined angle and then stops. At this time, the two nozzles 14 at the front of the UAV body 1 are significantly inclined toward the two ends of the UAV body 1 compared with the initial state when perpendicular to the ground;

[0061] In the initial state, when adjusting the angular positions of the two nozzles 14 at the rear of the UAV body 1, start the multi-stage electric push rod 23 at the rear of the UAV body 1, so that it acts on the first fixing frame 24 to drive the corresponding two connecting arms 25 to move upward in the opposite direction of the first placing plate 22. The connecting arms 25 act on the multi-stage telescopic rod 26 to move toward the first fixing frame 24. The multi-stage telescopic rod 26 acts on the movable plate 13 through the second connecting plate 27 to drive the nozzle 14 to rotate toward the first fixing frame 24 until the nozzle 14 rotates to a predetermined angle and then stops. At this time, the two nozzles 14 at the rear of the UAV body 1 are significantly inclined toward the middle of the UAV body 1 compared with the initial state when perpendicular to the ground;

[0062] In the initial state, when adjusting the positions of the two nozzles 14 on one side of the UAV body 1 and making the two nozzles 14 move closer to the middle position of the storage rack 10, start the motor 16 on one side of the UAV body 1, so that it acts on the gear disk 17 to rotate. The gear disk 17 drives the two serrated plates 18 to engage and move. The two serrated plates 18 drive the corresponding sliders 12 at the corresponding positions to move through the linkage rods 20 and the first connecting plate 21 at the corresponding positions until the two sliders 12 drive the nozzles 14 at the corresponding positions to move toward the middle of the storage rack 10 to a predetermined position through the movable plates 13 at the corresponding positions and then stop. At this time, the two nozzles 14 on one side of the UAV body 1 are significantly closer to the middle of the storage rack 10 compared with the initial position. During the process, the movable plate 13 acts on the multi-stage telescopic rod 26 at the corresponding position to contract;

[0063] At this time, the positions of the two nozzles 14 at the front and rear of the UAV body 1 and the two nozzles 14 on one side of the UAV body 1 have been adjusted. Therefore, whether viewed from the front and rear of the UAV body 1 or from both sides of the UAV body 1, the position angles of the four nozzles 14 are different. When the UAV body 1 flies longitudinally or horizontally, there will be no situation of repeated spraying in the same area in the forward direction of the UAV body 1, enabling the four nozzles 14 to perform their respective functions and avoiding waste caused by repeated spraying. In addition, the UAV body 1 can not only adjust the positions of the two nozzles 14 on one side, but can also adjust the two nozzles 14 on the other side of the UAV body 1 as needed, as long as the spraying areas of the four nozzles 14 do not overlap.

Claims

1. A forestry UAV spraying device, comprising a UAV body (1) and a liquid storage tank (2) arranged on the UAV body (1), a water pump (3) is arranged at the bottom of the liquid storage tank (2), a first U-shaped pipe (4) is arranged at the bottom of the water pump (3), and both ends of the first U-shaped pipe (4) are fixedly connected through a second U-shaped pipe (5), characterized in that: Two sets of spraying structures (6) are arranged outside the UAV body (1); The spraying structure (6) includes two bottom plates (9) and a storage box (11). The bottom plates (9) and the storage box (11) are both fixedly connected to the UAV body (1). A storage rack (10) is fixedly connected between the bottoms of the two bottom plates (9). Two first sliders (12) are slidably arranged inside the storage rack (10). The bottom of the first slider (12) is rotatably connected to a movable plate (13). A spray head (14) is fixedly arranged at the bottom of the movable plate (13). A connecting pipe (15) is fixedly connected through the outside of the spray head (14). A motor (16) is arranged at the top of the storage box (11). The output shaft of the motor (16) penetrates through the top of the storage box (11) and is fixedly connected to a gear disc (17). The gear disc (17) is meshed with two serrated plates (18). Two limit blocks (19) and a linkage rod (20) are fixedly connected to the outside of the serrated plate (18). One end of the linkage rod (20) penetrates through the storage box (11) and is fixedly connected to a first connecting plate (21). The first connecting plate (21) is fixedly connected to the corresponding first slider (12); Two sets of adjusting structures (7) are arranged outside the UAV body (1). The adjusting structure (7) includes a first storage plate (22). The first storage plate (22) is fixedly connected to the UAV body (1). A multi-stage electric push rod (23) is arranged on the inner bottom surface of the first storage plate (22). One end of the multi-stage electric push rod (23) is fixedly connected to a first fixing frame (24). Both ends of the first fixing frame (24) are rotatably connected to a connecting arm (25). One end of the connecting arm (25) is rotatably connected to a multi-stage telescopic rod (26). One end of the multi-stage telescopic rod (26) is fixedly connected to a second connecting plate (27). The second connecting plate (27) is fixedly connected to the corresponding movable plate (13).

2. The forestry UAV spraying device according to claim 1, wherein: The inside of the storage box (11) is hollow. The serrated plate (18), the linkage rod (20) and the storage box (11) are adaptively matched.

3. The forestry UAV spraying device according to claim 1, characterized in that: The length of one first connecting plate (21) is longer than that of the other first connecting plate (21). The four bottom plates (9) are respectively located around the UAV body (1).

4. The forestry UAV spraying device according to claim 1, characterized in that: A liquid inlet is arranged at the top of the liquid storage tank (2). Before the device works, an infusion tube is externally connected between the second U-shaped tube (5) and the connecting pipe (15).

5. The forestry UAV spraying device according to claim 1, characterized in that: The adjusting structure (7) further includes two convex blocks (28). The convex blocks (28) are fixedly connected to the first storage plate (22). A sliding rod (29) is fixedly connected between the two convex blocks (28). A second slider (30) is slidably arranged on the outside of the sliding rod (29). The second slider (30) is fixedly connected to the first fixing frame (24).

6. The forestry UAV spraying device according to claim 5, characterized in that: The first storage plate (22) and the second slider (30) are both L-shaped. Ventilation grooves are respectively arranged on the outside of the first storage plate (22) and the connecting arm (25).

7. A forestry UAV spraying device according to claim 1, characterized in that: Two sets of auxiliary structures (8) are provided at the top of the storage rack (10). The auxiliary structure (8) includes a second storage board (31). The second storage board (31) is fixedly connected to the storage rack (10). A plurality of hooks (32) are fixedly connected to the bottom of the second storage board (31). A fixing block (33) is fixedly connected to the inner side of the hook (32). A guide rod (34) penetrates through the top of the fixing block (33). One end of the guide rod (34) is fixedly connected to a baffle (35). A spring (36) is arranged between the baffle (35) and the fixing block (33).

8. The forestry UAV spraying device according to claim 7, characterized in that: The spring (36) is located on the periphery of the corresponding guide rod (34). The second storage board (31) is L-shaped.

9. The forestry UAV spraying device according to claim 1, characterized in that: Four second fixing frames (37) are provided at the bottom of the UAV body (1). Two storage rings (38) are fixedly connected to the bottom of the second fixing frame (37). The second fixing frame (37) is U-shaped, and two second ventilation slots are formed in the outer part of the second fixing frame (37).

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