Orchard frost prevention, mowing and pesticide spraying integrated machine

Abstract

This application discloses an integrated orchard frost prevention, weeding, and pesticide spraying machine, belonging to the field of agricultural machinery technology. It includes: a carrier, on which one of a spray nozzle and a pesticide spraying device is detachably mounted; a spray nozzle, detachably mounted on the carrier; a pesticide spraying device, detachably mounted on the carrier; a mounting base fixed to the carrier, with mounting plates at the lower ends of both the spray nozzle and the pesticide spraying device; the mounting components include: a cross groove formed on the mounting base; a fixing block slidably disposed within the cross groove; a mounting groove formed on the bottom wall of the mounting plate; limiting grooves respectively formed at the corners of the mounting groove away from the center point; and limiting posts fixed within the limiting grooves. The beneficial effect of this application is that it provides an integrated orchard frost prevention, weeding, and pesticide spraying machine, where the fixing blocks are positioned within the limiting grooves by the action of the side wall of the mounting groove, while simultaneously straightening the mounting plate to ensure correct installation angle and stable installation.

Description

Technical Field

[0001] This application relates to the field of agricultural machinery technology, and more specifically, to an integrated machine for frost prevention, mowing, and spraying in orchards. Background Technology

[0002] In existing technologies, frost prevention and pesticide application in tea orchards are usually carried out separately, requiring different equipment. This not only increases the labor intensity for farmers but also reduces operational efficiency. Current technologies utilize a universal chassis on which different equipment is mounted, achieving greater versatility. For example, heating equipment can be installed on the chassis for frost prevention, or pesticide application equipment can be mounted on the chassis for application, thus improving the production efficiency of tea orchards. Existing technologies generally use detachable mounting components, requiring separate installation of defrosting and pesticide application equipment for each operation. However, the existing defrosting and pesticide application equipment is fixed with several bolts, resulting in low efficiency during separation and installation, and requiring adjustments during installation, which is inconvenient.

[0003] Therefore, there is a need for an integrated orchard frost prevention, mowing, and pesticide spraying machine to solve the above problems. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide an integrated orchard frost prevention, weeding, and pesticide spraying machine, comprising: a carrier on which one of a flame sprayer and a pesticide spraying device is detachably mounted; a flame sprayer detachably mounted on the carrier; a pesticide spraying device detachably mounted on the carrier; a weeding blade rotatably mounted on the underside of the carrier, the weeding blade being fixedly connected to a drive shaft, a drive component being provided inside the carrier, the drive component driving the drive shaft to rotate, and a protective baffle fixed to the underside of the carrier surrounding the movement range of the weeding blade; a mounting base fixed on the carrier, with mounting plates provided at the lower ends of both the flame sprayer and the pesticide spraying device, and a mounting assembly provided between the mounting plate and the mounting base; the mounting assembly includes: a cross groove formed on the mounting base; four fixing blocks slidably disposed within the cross groove, the four fixing blocks moving closer or further apart; a mounting groove formed on the bottom wall of the mounting plate; four sets of limiting grooves, each formed at a corner of the mounting groove away from the center point; and a limiting post fixed within the limiting groove.

[0006] The driving component can be set as a motor. With the set mounting plate and mounting base, when the mounting plate is placed on the mounting base, the fixing blocks are located in the mounting groove. At this time, the four fixing blocks are far apart from each other. Under the action of the side wall of the mounting groove, the fixing blocks are respectively located in the limiting groove, and the mounting plate is straightened to ensure correct and stable installation.

[0007] Furthermore, four sets of lead screws are rotatably installed in the cross groove. One end of each lead screw is fixedly connected to a conical wheel, which meshes with each other. The four lead screws pass through four fixed blocks and are threaded into the fixed blocks. A fixed motor is fixedly connected inside the carrier. The power output end of the fixed motor is fixedly connected to one of the lead screws to drive the lead screw to rotate. The fixed blocks have grooves that cooperate with the limiting posts. When the four fixed blocks are farthest apart, the fixed blocks are located in the limiting grooves, and the limiting posts are embedded in the grooves on the fixed blocks.

[0008] With the help of the lead screw and the limiting post, when the fixed motor outputs power, the lead screw rotates through the conical wheel, which in turn drives the fixed block to move. The movement of the fixed block will straighten the mounting plate and cause the fixed block to enter the limiting groove and continue to move until the limiting post is embedded in the groove opened in the fixed block, thereby positioning the mounting plate and completing the fixing.

[0009] Furthermore, the mounting base has a wiring port with a connecting end inside. The bottom of the mounting plate has a corresponding connecting port. When the mounting plate is installed on the mounting base, the connecting end extends out of the wiring port and is inserted into the mounting plate for circuit connection. A sliding rack is slidably connected inside the carrier, and a drive gear is fixedly connected to one of the lead screws. The drive gear meshes with the sliding rack. When the four fixed blocks are at their farthest distance, the connecting end extends out of the wiring port and is inserted into the mounting plate.

[0010] With the connection end and connection port set, when the four fixed blocks move to straighten the mounting plate, the connection port is directly opposite the connection end. At this time, the screw continues to rotate, causing the heater to continue to move in the limit groove. The connection end extends out of the wiring port and is inserted into the connection port to realize power supply. Similarly, when it is necessary to remove the mounting plate, the connection end will retract to the wiring port, and then the mounting plate can be removed, avoiding the safety hazards that may be caused if the circuit is not disconnected during disassembly and assembly.

[0011] Furthermore, the flamethrower includes a first tube and a second tube, which are connected together. A drive fan is fixedly installed inside the first tube and blows air towards the second tube. A protective net is fixedly installed at the rear end of the first tube, and a heater is fixedly installed inside the second tube. The air is heated by the heater and ejected from the front end of the second tube.

[0012] Furthermore, a fixing ring is fixedly connected inside the second cylinder, and a mounting sleeve is fixedly connected inside the first cylinder near the drive fan. A connecting post is fitted onto the mounting sleeve, and the connecting post is fixedly connected to the fixing ring. A thermal spring is installed inside the mounting sleeve, and the two ends of the thermal spring abut against the thermal spring and the connecting post, respectively.

[0013] By using a thermal spring, when the temperature at the drive fan rises, the thermal spring deforms and elongates, which in turn causes the connecting column to push the fixing ring, causing the first and second cylinders to move relative to each other. This moves the heater away from the drive fan, preventing the drive fan from overheating and being damaged.

[0014] Furthermore, the flame tube also includes a fuel tank for storing fuel, a connector is provided on the second tube, and an oil pipe for conveying fuel is connected between the fuel tank and the connector. Fuel is supplied to the heater through the oil pipe and the connector. The connector has a fuel flow channel. A fixing ring is fixed on the first tube. One end of the control plate is inserted into the connector and slides. A through groove is opened on the control plate. Fuel passes through the channel and through groove of the connector. By sliding the control plate, the through groove coincides with or is offset from the channel in the connector.

[0015] By using the connecting parts and fixing rings, when the first cylinder moves relative to the spray head, it will cause the fixing ring and connecting parts to move relative to each other. When the temperature at the drive fan position is too high, the channel of the through groove and the connecting parts will gradually be misaligned, reducing the fuel flow and thus controlling the heat generated by the heater, avoiding damage to the drive fan caused by continuous high temperature.

[0016] Furthermore, the spraying device includes a pesticide tank and a sprayer, with multiple spray heads distributed circumferentially on the sprayer.

[0017] The beneficial effects of this application are as follows:

[0018] 1. With the installation plate and mounting base set, when the installation plate is placed on the mounting base, the fixing blocks are located in the installation groove. At this time, the four fixing blocks are far apart from each other. Under the action of the side wall of the installation groove, the fixing blocks are respectively located in the limiting groove, and the installation plate is straightened to ensure the correct installation angle and stable installation.

[0019] 2. With the connection end and connection port set, after the four fixed blocks move and straighten the mounting plate, the connection port is directly opposite the connection end. At this time, the screw continues to rotate, causing the heater to continue to move in the limit groove. The connection end extends out of the wiring port and is inserted into the connection port to realize power supply. Similarly, when it is necessary to remove the mounting plate, the connection end will retract to the wiring port, and then the mounting plate can be removed, avoiding the safety hazards that may be caused if the circuit is not disconnected during disassembly and assembly.

[0020] 3. By using a thermal spring, when the temperature at the drive fan rises, the thermal spring deforms and elongates, which in turn causes the connecting column to push the fixing ring, causing the first cylinder and the second cylinder to move relative to each other. This moves the heater away from the drive fan and prevents the drive fan from overheating and being damaged. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0022] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0023] In the attached diagram:

[0024] Figure 1 This is an overall schematic diagram according to one embodiment of the present application;

[0025] Figure 2 yes Figure 1 A schematic diagram of the mounting base in the embodiment;

[0026] Figure 3 yes Figure 1 A schematic diagram of the mounting plate and mounting base in the embodiment;

[0027] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle;

[0028] Figure 5 yes Figure 1 The embodiment shows the installation diagram of the lead screw;

[0029] Figure 6 yes Figure 1 A schematic diagram of the mounting slot in the embodiment;

[0030] Figure 7 yes Figure 1 A cross-sectional view of the connector in the embodiment.

[0031] Figure label:

[0032] 10. Carrier; 11. Flamethrower tube; 12. Fuel tank; 13. Sprayer; 14. Spray head; 15. Connection port; 16. Mounting plate; 17. Retaining ring; 18. First tube; 19. Drive fan; 20. Protective net; 21. Mounting sleeve; 22. Connecting post; 23. Thermal spring; 24. Heater; 25. Connector; 26. Oil pipe; 27. Control plate; 28. Through groove; 29. ​​Fixing block; 30. Lead screw; 31. Conical wheel; 32. Fixed motor; 33. Drive gear; 34. Sliding rack; 35. Connecting end; 36. Connection port; 37. Mounting groove; 38. Limiting groove; 39. Limiting post; 40. Spraying device; 41. Weeding blade; 42. Drive shaft; 43. Protective baffle; 44. Second tube; 45. Mounting base; 46. Cross groove; 47. Pesticide tank; 48. Groove. Detailed Implementation

[0033] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0034] It should also be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0035] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0036] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0037] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] Reference Figure 1-7A fruit orchard frost prevention, mowing, and pesticide spraying integrated machine includes: a carrier 10, a flame sprayer 11, a spraying device 40, a weeding blade 41, a drive shaft 42, a protective baffle 43, a mounting base 45, a cross groove 46, a fixing block 29, a mounting groove 37, a limiting groove 38, and a limiting post 39. The main body of the carrier 10 is a movable trolley structure, specifically referring to the tracked self-propelled trolley in the prior art. The weeding blade 41 is rotatably mounted on the lower end of the carrier 10, and mowing is performed by rotating the weeding blade 41. A drive component for driving the weeding blade 41 is provided on the carrier 10, and the drive component can be a motor. To prevent grass clippings from flying due to the rotation of the weeding blade 41, a protective baffle 43 is also fixedly connected to the lower end of the carrier 10. The protective baffle 43 surrounds the outside of the movement range of the weeding blade 41, and grooves are opened on the side wall of the protective baffle 43. The flamethrower tube 11 and the spraying device 40 are detachably mounted on the carrier 10, allowing for different operations through replacement. A mounting plate 16 is fixedly installed on the upper end of the carrier 10, and a wiring port 15 is installed on the mounting plate 16 at the lower end of the flamethrower tube 11 and the spraying device 40. A cross groove 46 is provided on the mounting plate 16, and four lead screws 30 are rotatably connected in the cross groove 46. The four lead screws 30 are arranged in a cross shape in the cross groove 46. Four fixing blocks 29 are also slidably connected in the cross groove 46, and the sliding trajectory of the four fixing blocks 29 is cross-shaped. The four lead screws 30 pass through the four fixing blocks 29 respectively and are threadedly connected to the fixing blocks 29, so that rotating the lead screws 30 can drive the fixing blocks 29 to slide. One end of each of the four lead screws 30 is fixedly connected to a conical wheel 31, and the conical wheels 31 mesh with each other, so that the four lead screws 30 rotate synchronously, causing the four fixing blocks 29 to move closer or further apart. A fixed motor 32 is fixedly connected inside the vehicle 10. The power output end of the fixed motor 32 is fixedly connected to one of the lead screws 30, thereby driving the lead screw 30 to rotate.

[0039] A mounting groove 37 is provided at the bottom of the mounting plate 16. The main body of the mounting groove 37 is rectangular, and limit grooves 38 are provided at the four apex positions of the mounting groove 37. When the fixing blocks 29 are located in the mounting groove 37, the four fixing blocks 29 are far apart from each other and can contact the side wall of the mounting groove 37, so that the mounting plate 16 can be straightened and the installation angle is correct. After the mounting plate 16 is straightened, the four fixing blocks 29 can continue to move into the four limit grooves 38 for limiting. Limit posts 39 are fixed in the limit grooves 38. The fixing blocks 29 have grooves 48 for the limit posts 39 to be inserted. When the four fixing blocks 29 are farthest apart, the limit posts 39 are inserted into the grooves 48 on the fixing blocks 29 to prevent loosening.

[0040] A connection port 36 is provided at the bottom of the mounting plate 16, and a wiring port 15 is provided on the mounting base 45. A connection end 35 is provided in the wiring port 15. The connection end 35 is inserted into the connection port 36 to supply power to the flamethrower 11 or the spraying device 40 mounted on the mounting plate 16. A drive gear 33 is fixedly connected to one of the lead screws 30, and a sliding rack 34 is slidably connected in the carrier 10. The sliding rack 34 is fixedly connected to the connection end 35 and meshes with the drive gear 33. When the four fixing blocks 29 move away from each other and are about to enter the limiting groove 38, the connection end 35 will also be about to extend out of the wiring port 15. Since the mounting plate 16 and the mounting base 45 are facing each other at this time, and the wiring port 15 and the connection port 36 are also facing each other, the connection end 35 can be inserted into the connection port 36 for connection.

[0041] The flamethrower tube 11 includes a first tube 18 and a second tube 44, which are sleeved together. A drive fan 19 is fixedly installed inside the first tube 18, blowing air towards the second tube 44. A protective net 20 is fixedly installed at the rear end of the first tube 18. A heater 24 is fixedly installed inside the second tube 44, heating the air so that it is sprayed out from the front end of the second tube 44 to prevent frost damage. To prevent the drive fan 19 from being damaged at high temperatures, a fixing ring 17 is fixedly connected inside the second tube 44. A mounting sleeve 21 is fixedly connected inside the first tube 18 near the drive fan 19, ensuring that the ambient temperature of the mounting sleeve 21 is approximately the same as that of the drive fan 19. A connecting post 22 is sleeved on the heat-sensitive mounting sleeve 21, and the connecting post 22 is fixedly connected to the fixing ring 17. A thermal spring 23 is installed inside the mounting sleeve 21, with both ends of the thermal spring 23 fixedly connected to the mounting sleeve 21 and the connecting post 22, respectively. The connecting post 22 can be made of a material with poor thermal conductivity, such as a zirconia heat insulation rod, to prevent heat from being transferred through the connecting post 22 and causing any impact. When the heater 24 heats up and causes the ambient temperature at the drive fan 19 to rise above the normal operating temperature of the drive fan 19, the thermal spring 23 deforms and elongates, which in turn causes the connecting post 22 to push the fixing ring 17, causing the first cylinder 18 and the second cylinder 44 to move relative to each other, and the heater 24 to move away from the drive fan 19, preventing the drive fan 19 from overheating and being damaged.

[0042] The flamethrower tube 11 also includes a fuel tank 12 for storing fuel. A connector 25 is provided on the second tube 44. A fuel supply pipe 26 is connected between the fuel tank 12 and the connector 25. Fuel is supplied to the heater 24 through the fuel supply pipe 26 and the connector 25. The connector 25 has a fuel flow channel. A retaining ring 17 is fixed on the first tube 18. One end of the control plate 27 is inserted into the connector 25 and slides. A through groove 28 is provided on the control plate 27. Fuel passes through the channel of the connector 25 and the through groove 28. By sliding the control plate 27, the through groove 28 and the channel in the connector 25 may overlap or misalign. When the temperature at the location of the drive fan 19 is too high, the through groove 28 and the channel of the connector 25 will gradually misalign, reducing the fuel flow and thus controlling the heat generated by the heater 24, preventing continuous high temperature from damaging the drive fan 19.

[0043] The spraying device 40 includes a pesticide tank 47 and a sprayer 13. The sprayer 13 has multiple spray heads 14 distributed circumferentially. The sprayer 13 is a conventional air-driven sprayer.

[0044] Working process or usage method:

[0045] 1. When it is necessary to install the flame tube 11 on the carrier 10, the mounting plate 16 is placed on the carrier 10. At this time, the four fixing blocks 29 are close together and located in the mounting groove 37. By starting the fixing motor 32, the lead screw 30 is rotated, which in turn drives the four fixing blocks 29 to move in opposite directions. Under the action of the side wall of the mounting groove 37, the mounting plate 16 is straightened. At this time, the fixing blocks 29 continue to move into the limiting groove 38 and connect with the limiting post 39. At this time, under the action of the drive gear 33, the connecting end 35 extends out of the wiring port 15 and is inserted into the connecting port 36 to connect the power. At this time, the flame tube 11 can start working.

[0046] 2. When the flamethrower tube 11 starts working, fuel is supplied from the fuel tank 12 through the fuel pipe 26 and the connector 25 to the heater 24, which heats the air and drives the fan 19 to blow air and defrost. When the temperature at the drive fan 19 rises due to the heater 24, the thermal spring 23 deforms, causing the connecting column 22 to push the fixing ring 17 and the second cylinder 44 to move, thereby moving the drive fan 19 away from the heater 24. When the temperature is too high, the control plate 27 will move to a state where the fuel passage of the through groove 28 and the connector 25 are misaligned, thereby reducing the fuel flow and reducing heat generation.

[0047] 3. When it is necessary to install the spraying device 40 onto the vehicle 10, refer to the first step.

[0048] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the application involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described application concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A frost prevention, mowing, and pesticide spraying integrated machine for orchards, characterized in that: include: The vehicle (10) is detachably mounted with one of the flamethrower tubes (11) and the spraying device (40); Flamethrower tube (11) is detachably mounted on vehicle (10); The spraying device (40) is detachably mounted on the vehicle (10); Weeding blade (41) is rotatably mounted on the underside of the carrier (10). The weeding blade (41) is fixedly connected to a drive shaft (42). A drive unit is installed inside the carrier (10) to drive the drive shaft (42) to rotate. A protective baffle (43) is fixed on the underside of the carrier (10) and surrounds the movement range of the weeding blade (41). A mounting base (45) is fixed on the vehicle (10), and a mounting plate (16) is provided at the lower end of both the flamethrower (11) and the spraying device (40). A mounting assembly is provided between the mounting plate (16) and the mounting base (45). The installation components include: A cross groove (46) is formed on the mounting base (45); There are four fixed blocks (29), which are slidably disposed in the cross groove (46). The four fixed blocks (29) move closer to each other or further apart by sliding. The mounting slot (37) is provided on the bottom wall of the mounting plate (16); The limiting groove (38) is provided in four sets, which are respectively opened at the corner position of the mounting groove (37) away from the center point; The limiting post (39) is fixed in the limiting groove (38).

2. The orchard frost prevention, mowing, and spraying integrated machine according to claim 1, characterized in that: Four sets of lead screws (30) are rotatably arranged in the cross groove (46). One end of the lead screw (30) is fixedly connected to a conical wheel (31). The conical wheels (31) mesh with each other. The four lead screws (30) pass through four fixed blocks (29) respectively and are threadedly engaged with the fixed blocks (29). A fixed motor (32) is fixedly connected in the carrier (10). The power output end of the fixed motor (32) is fixedly connected to one of the lead screws (30) to drive the lead screw (30) to rotate. The fixed block (29) has a groove that cooperates with the limiting post (39). When the four fixed blocks (29) are farthest apart, the fixed block (29) is located in the limiting groove (38), and the limiting post (39) is embedded in the groove on the fixed block (29).

3. The orchard frost prevention, mowing, and spraying integrated machine according to claim 1, characterized in that: The mounting base (45) is provided with a wiring port (15), and a connecting end (35) is provided inside the wiring port (15). The bottom end of the mounting plate (16) is provided with a connecting port (36) corresponding to the wiring port (15). When the mounting plate (16) is installed on the mounting base (45), the connecting end (35) extends out of the wiring port (15) and inserts into the mounting plate (16) for circuit connection. A sliding rack (34) is slidably connected inside the carrier (10). A drive gear (33) is fixedly connected to one of the lead screws (30). The drive gear (33) meshes with the sliding rack (34). When the four fixed blocks (29) are farthest apart, the connecting end (35) extends out of the wiring port (15) and inserts into the mounting plate (16).

4. The orchard frost prevention, mowing, and spraying integrated machine according to claim 1, characterized in that: The flame-spraying tube (11) includes a first tube (18) and a second tube (44), which are sleeved together. A drive fan (19) is fixedly installed inside the first tube (18), and the drive fan (19) blows air towards the second tube (44). A protective net (20) is fixedly installed at the rear end of the first tube (18), and a heater (24) is fixedly installed inside the second tube (44). The air is heated by the heater (24) and sprayed out from the front end of the second tube (44).

5. The orchard frost prevention, mowing, and spraying integrated machine according to claim 4, characterized in that: A fixing ring (17) is fixedly connected inside the second cylinder (44), and a mounting sleeve (21) is fixedly connected inside the first cylinder (18) near the drive fan (19). A connecting post (22) is sleeved on the mounting sleeve (21), and the connecting post (22) is fixedly connected to the fixing ring (17). A thermal spring (23) is provided inside the mounting sleeve (21), and the two ends of the thermal spring (23) are fixedly connected to the mounting sleeve (21) and the connecting post (22) respectively.

6. The orchard frost prevention, mowing, and spraying integrated machine according to claim 5, characterized in that: The flame tube (11) also includes a fuel tank (12) for storing fuel. A connector (25) is provided on the second tube (44). A fuel delivery pipe (26) is connected between the fuel tank (12) and the connector (25). Fuel is supplied to the heater (24) through the oil pipe (26) and the connector (25). The connector (25) has a fuel flow channel. A control piece (27) is fixed on the first tube (18). One end of the control piece (27) is inserted into the connector (25) and slides. A through groove (28) is provided on the control piece (27). Fuel passes through the channel of the connector (25) and the through groove (28). The sliding of the control piece (27) causes the through groove (28) to overlap or stagger with the channel in the connector (25).

7. The orchard frost prevention, mowing, and spraying integrated machine according to claim 1, characterized in that: The spraying device (40) includes a pesticide tank (47) and a sprayer (13), with multiple spray heads (14) distributed circumferentially on the sprayer (13).

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