Adjustable spray boom structure of agricultural plant protection unmanned aerial vehicle

Abstract

The utility model discloses an adjustable spray pole structure of agricultural plant protection unmanned plane relates to plant protection unmanned plane technical field, including fixed buckle, the side of fixed buckle is provided with main part unit, the side of main part unit is provided with adjusting lever unit, and main part unit includes the support fixedly connected in fixed buckle side, the liquid distribution valve for guiding liquid fixedly installed in the inside of support top surface, the motor for adjusting adjusting lever unit angle fixedly installed in the inside of the bottom surface of support, the utility model discloses when the spray pole moves, the liquid inlet will slide in the inside of spacing chute, make the spray pole always keep stable state, and the spray pole will drive auxiliary rod to slide in the inside of the storage groove with the slide bar as the axle simultaneously when moving, and the slide bar will slide in the inside of linear sliding slot simultaneously to change the current angle of auxiliary rod, so that auxiliary rod can further support the spray pole, guarantee the stability of spray pole.

Description

Technical Field

[0001] This utility model relates to the field of plant protection drone technology, specifically to an adjustable spray boom structure for an agricultural plant protection drone. Background Technology

[0002] Agricultural plant protection drones use constant speed, constant altitude flight, and flow control to precisely spray pesticides onto crop leaves, avoiding missed or repeated spraying as in manual spraying, reducing pesticide usage and environmental residues. To ensure spraying operations reach the required areas, a spray boom structure is typically used for precise spraying. Refer to the relevant patent CN206984389U, which essentially adds connecting pipes and other structures to solve the problem of fixed spray angles in traditional plant protection drones, which cannot be adjusted according to wind direction, resulting in poor pesticide spraying effects and requiring multiple spraying operations, increasing labor costs. This reduces the impact of wind direction on pesticide spraying operations.

[0003] The following explains the pesticide spraying method of agricultural plant protection drones: Traditional equipment usually has a fixed spraying width, which can lead to overspraying of crops with narrow row spacing and underspraying of crops with wide row spacing. It may also waste pesticides because the width exceeds the plot boundary. Therefore, it is necessary to adjust the coverage of the drone by changing the angle of the spray boom, so that the spraying range can be precisely matched with the row spacing to avoid underspraying between rows or overspraying between plants. To this end, we provide an adjustable spray boom structure for agricultural plant protection drones to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable spray boom structure for agricultural plant protection drones to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An adjustable spray boom structure for an agricultural plant protection drone includes a fixing buckle, a main body unit is provided on the side of the fixing buckle, and an adjustment rod unit is provided on the side of the main body unit.

[0007] The main unit includes a bracket fixedly connected to the side of the fixing buckle, a liquid distribution valve fixedly installed inside the top surface of the bracket for guiding liquid, and a motor fixedly installed inside the bottom surface of the bracket for adjusting the angle of the adjusting rod unit.

[0008] The adjusting rod unit includes two spray rods movably installed inside the bottom surface of the bracket, and an auxiliary rod movably installed on the back of the spray rods for stabilization.

[0009] A further improvement of the present invention is that: a limiting groove is provided on the top surface of the bracket, a receiving groove is provided inside one side end of the bracket, a straight groove is provided inside the receiving groove, and a guide pipe is fixedly connected to the output end of the liquid separator.

[0010] A further improvement of this utility model is that: after the output end of the motor rotates through the bottom of the bracket, a drive sprocket is fixedly sleeved thereon, and a chain is movably connected to the outer surface of the drive sprocket, and the chain is movably connected inside the bracket.

[0011] A further improvement of the present invention is that: a rotating shaft is fixedly installed at one end of each of the two spray bars, the rotating shaft movably passes through the bottom surface of the bracket and is fixedly sleeved with a gear, the number of the gears is two, and a follower sprocket is fixedly connected to the top surface of one of the gears.

[0012] A further improvement of this utility model is that: the chain is movably connected to the outer surface of the follower sprocket, the input end of the spray bar is fixedly connected to a liquid inlet, the liquid inlet is slidably connected to the inside of the limiting groove, and the bottom surface of the spray bar is fixedly connected to a nozzle.

[0013] A further improvement of this utility model is that: a sliding rod is fixedly connected to one end of the top surface of the auxiliary rod, the auxiliary rod is movably connected inside the storage groove, and the sliding rod is slidably connected inside the straight sliding groove.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. This utility model provides an adjustable spray bar structure for an agricultural plant protection drone. It is connected to a preset fixed point of the drone through two fixing buckles, and the liquid distribution valve is connected to the water tank of the drone. Under the guidance of the guide pipe, the liquid is transmitted to the interior of two opposing adjustment rod units so as to realize liquid spraying operation.

[0016] Driven by the motor, the drive sprocket drives the two adjusting rod units to move relative to each other via the chain. At this time, the adjusting rod unit folds in half with the connection point with the bracket as the axis. By changing the angle of the current adjusting rod unit, the width of the range it covers during linear movement is changed, so as to accurately cover the required position.

[0017] 2. This utility model provides an adjustable spray boom structure for an agricultural plant protection drone. The drive sprocket moves synchronously through a chain, and the rotating gear drives another gear meshing with it to move relative to each other, so that the two spray booms fold about the connection point with the bracket. By changing the current angle of the spray boom, the coverage area can be changed, thereby adjusting the irrigation range of the drone.

[0018] During the movement of the spray bar, the liquid inlet slides inside the limiting groove, keeping the spray bar stable. At the same time, the movement of the spray bar drives the auxiliary rod to slide around the slide bar inside the receiving groove. Meanwhile, the slide bar slides inside the straight groove to change the current angle of the auxiliary rod, allowing the auxiliary rod to further support the spray bar and ensure its stability. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the main unit of this utility model;

[0021] Figure 3 This is a schematic diagram of the component structure of the main unit of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the adjusting rod unit of this utility model;

[0023] Figure 5 This is a schematic diagram of the component structure of the adjusting rod unit of this utility model;

[0024] In the diagram: 1. Fixing buckle; 2. Main body unit; 21. Bracket; 22. Storage tank; 23. Liquid distribution valve; 24. Guide pipe; 25. Limiting slide; 26. Linear slide; 27. Motor; 28. Drive sprocket; 29. ​​Chain; 3. Adjusting rod unit; 31. Spray bar; 32. Gear; 33. Follow-up sprocket; 34. Liquid inlet; 35. Nozzle; 36. Auxiliary rod; 37. Slide bar. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to embodiments:

[0026] Example 1: As Figure 1-5 As shown, this utility model provides an adjustable spray bar structure for an agricultural plant protection drone, including a fixing buckle 1, a main body unit 2 on the side of the fixing buckle 1, and an adjustment rod unit 3 on the side of the main body unit 2. The main body unit 2 includes a bracket 21 fixedly connected to the side of the fixing buckle 1, a liquid distribution valve 23 fixedly installed inside the top surface of the bracket 21 for guiding liquid, and a motor 27 fixedly installed inside the bottom surface of the bracket 21 for adjusting the angle of the adjustment rod unit 3.

[0027] The bracket 21 has an L-shaped cross-section and openings on its side and bottom for housing the adjustment rod unit 3. A cavity is provided in the middle of the bracket 21. The output end of the motor 27 is located inside the cavity of the bracket 21. The liquid separator 23 is fixed on the top surface of the bracket 21 and does not communicate with the cavity inside the bracket 21. Two limiting grooves 25 are provided on the top surface of the bracket 21 and are respectively opened at both ends of the top surface of the bracket 21 and are opposite to each other.

[0028] The top surface of the bracket 21 is provided with a limiting groove 25, and the side end of the bracket 21 is provided with a storage groove 22. The storage groove 22 is provided with a straight groove 26. The output end of the liquid distribution valve 23 is fixedly connected to a guide pipe 24. The output end of the motor 27 is fixedly connected to a drive sprocket 28. The outer surface of the drive sprocket 28 is movably connected to a chain 29, which is movably connected inside the bracket 21.

[0029] The bracket 21 has two storage slots 22 on its side, which are fixedly connected to the left and right ends of the side of the bracket 21 respectively. The top and bottom surfaces of the storage slots 22 are provided with straight grooves 26.

[0030] In this embodiment, two fixing buckles 1 are connected to the preset fixing point of the drone, and the liquid distribution valve 23 is connected to the water tank of the drone. Under the guidance of the guide pipe 24, the liquid is transmitted to the interior of the two opposing adjustment rod units 3 so that the liquid spraying operation can be realized.

[0031] Driven by the motor 27, the drive sprocket 28 drives the two adjusting rod units 3 to move relative to each other via the chain 29. At this time, the adjusting rod unit 3 is folded about the connection point with the bracket 21. By changing the angle of the current adjusting rod unit 3, the width of the range it covers during linear movement is changed so as to accurately cover the required position.

[0032] Example 2: As Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the adjusting rod unit 3 includes a spray rod 31 movably installed inside the bottom surface of the bracket 21 and an auxiliary rod 36 movably installed on the back of the spray rod 31 for stabilization. One end of the spray rod 31 is fixedly installed with a rotating shaft, which passes through the bottom surface of the bracket 21 and is fixedly sleeved with a gear 32. There are two gears 32, and the top surface of one of the gears 32 is fixedly connected to a follower sprocket 33. A chain 29 is movably connected to the outer surface of the follower sprocket 33. The input end of the spray rod 31 is fixedly connected to a liquid inlet 34, which is slidably connected inside the limiting groove 25. The bottom surface of the spray rod 31 is fixedly connected to a nozzle 35. The spray rod 31 is hollow inside, and the nozzle 35 is a long strip structure. The nozzle 35 is connected to the inside of the spray rod 31, thereby completing the liquid spraying operation.

[0033] Two spray bars 31 are arranged opposite each other and connected to the bottom surface of the bracket 21 by a rotating rod. The rotating rod is concentric with the gear 32. The gear 32 on the top surface of the two spray bars 31 meshes with each other. One end of the outer surface of the liquid inlet 34 slides inside the limiting slide groove 25 and the two output ends of the guide tube 24 are respectively fixed inside the two liquid inlets 34.

[0034] A sliding rod 37 is fixedly connected to one end of the top surface of the auxiliary rod 36. The auxiliary rod 36 is movably connected to the inside of the storage groove 22, and the sliding rod 37 is slidably connected to the inside of the straight slide groove 26.

[0035] The auxiliary rod 36, which is movably connected to the back of the spray bar 31, can move around with the connection point with the spray bar 31 as the axis. The size of the auxiliary rod 36 is adapted to the storage groove 22 and can be stored inside the storage groove 22. The slide rod 37 is fixed to one end of the top surface and one end of the bottom surface of the auxiliary rod 36 respectively. The slide rod 37 can slide inside the straight slide groove 26.

[0036] In this embodiment, the drive sprocket 28 drives the follower sprocket 33 to move synchronously via the chain 29. The rotating gear 32 drives another gear 32 meshing with it to move relative to each other, so that the two spray rods 31 fold about the connection point with the bracket 21, that is, they rotate around the rotating rod to achieve folding. By changing the current angle of the spray rod 31, its coverage range is changed, thereby adjusting the irrigation range of the drone.

[0037] When the spray bar 31 moves, the liquid inlet 34 slides inside the limiting slide groove 25. The limiting slide groove 25 is concentric with the rotating rod, ensuring that there is no interference during movement and keeping the spray bar 31 stable. At the same time, when the spray bar 31 moves, it will drive the auxiliary rod 36 to slide inside the receiving groove 22 with the slide rod 37 as the axis. Meanwhile, the slide rod 37 will slide inside the straight slide groove 26 to change the current angle of the auxiliary rod 36, so that the auxiliary rod 36 can further support the spray bar 31 and ensure the stability of the spray bar 31.

[0038] The working principle of the adjustable spray boom structure of this agricultural plant protection drone will be explained in detail below.

[0039] like Figure 1-5 As shown, the liquid is connected to the drone's preset fixed point through two fixing buckles 1, and the liquid distribution valve 23 is connected to the drone's water tank. Under the guidance of the guide pipe 24, the liquid is transmitted to the interior of the two opposing adjustment rod units 3. The liquid enters the spray bar 31 from the liquid inlet 34 and then sprays out from the nozzle 35 so as to realize the liquid spraying operation.

[0040] Driven by the motor 27, the drive sprocket 28 drives the follower sprocket 33 to move synchronously through the chain 29. The rotating gear 32 will drive the other gear 32 meshing with it to move relative to each other, so that the two spray rods 31 fold about the connection point with the bracket 21, that is, rotate around the rotating rod. By changing the current angle of the spray rod 31, the coverage range is changed, and the irrigation range of the drone can be adjusted.

[0041] When the spray bar 31 moves, the liquid inlet 34 slides inside the limiting slide groove 25, keeping the spray bar 31 stable. At the same time, the spray bar 31 drives the auxiliary rod 36 to slide inside the receiving groove 22 with the slide rod 37 as the axis. Meanwhile, the slide rod 37 slides inside the straight slide groove 26 to change the current angle of the auxiliary rod 36, so that the auxiliary rod 36 can further support the spray bar 31 and ensure the stability of the spray bar 31.

[0042] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all modifications or improvements made without departing from the spirit and concept of the present invention are within the protection scope of the present invention.

Claims

1. An adjustable spray boom structure for an agricultural plant protection drone, comprising a fixing buckle (1), characterized in that: The fixing buckle (1) has a main body unit (2) on its side, and the main body unit (2) has an adjusting rod unit (3) on its side; The main unit (2) includes a bracket (21) fixedly connected to the side of the fixing buckle (1), a liquid distribution valve (23) fixedly installed inside the top surface of the bracket (21) for guiding liquid, and a motor (27) fixedly installed inside the bottom surface of the bracket (21) for adjusting the angle of the adjusting rod unit (3). The adjusting rod unit (3) includes two spray rods (31) movably installed inside the bottom surface of the bracket (21) and an auxiliary rod (36) movably installed on the back of the spray rods (31) for stabilization.

2. The adjustable spray boom structure of an agricultural plant protection drone according to claim 1, characterized in that: The top surface of the bracket (21) is provided with a limiting groove (25), and a receiving groove (22) is provided inside one side end of the bracket (21). A straight groove (26) is provided inside the receiving groove (22), and a guide pipe (24) is fixedly connected to the output end of the liquid separator (23).

3. The adjustable spray boom structure of an agricultural plant protection drone according to claim 2, characterized in that: The output end of the motor (27) rotates through the bottom of the bracket (21) and is fixedly sleeved with a drive sprocket (28). A chain (29) is movably connected to the outer surface of the drive sprocket (28), and the chain (29) is movably connected inside the bracket (21).

4. The adjustable spray boom structure of an agricultural plant protection drone according to claim 3, characterized in that: One end of each of the two spray bars (31) is fixedly mounted with a rotating shaft. The rotating shaft moves through the bottom surface of the bracket (21) and is fixedly sleeved with a gear (32). There are two gears (32), and the top surface of one of the gears (32) is fixedly connected to a follower sprocket (33).

5. The adjustable spray boom structure of an agricultural plant protection drone according to claim 4, characterized in that: The chain (29) is movably connected to the outer surface of the follower sprocket (33), the input end of the spray bar (31) is fixedly connected to the liquid inlet (34), the liquid inlet (34) is slidably connected to the inside of the limiting groove (25), and the bottom surface of the spray bar (31) is fixedly connected to the nozzle (35).

6. The adjustable spray boom structure of an agricultural plant protection drone according to claim 5, characterized in that: A sliding rod (37) is fixedly connected to one end of the top surface of the auxiliary rod (36). The auxiliary rod (36) is movably connected inside the storage groove (22), and the sliding rod (37) is slidably connected inside the straight groove (26).

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