Fruit tree pesticide spraying device

Abstract

The fruit tree pesticide spraying device comprises a frame, a pesticide box, a first pesticide spraying mechanism, a swing mechanism and a driving mechanism, a fixing frame is arranged on the upper portion of the frame, the pesticide box is installed in the fixing frame, a water pump is installed on one side of the fixing frame, a water inlet pipe of the water pump is communicated with the pesticide box, and a water distributor is connected to a water outlet pipe of the water pump; the first pesticide spraying mechanism comprises a cross beam, water pipes are arranged at the two ends of the cross beam, a fixing plate is fixedly connected to a rotating rod, and one end of each water pipe is connected with a water distributor through a hose; the swing mechanism comprises a connecting plate, the middle of the connecting plate is movably connected with the cross beam through a movable shaft, two ends of the connecting plate are movably connected with a pull rod respectively, and one end of each pull rod is movably connected with the fixed plate; the driving mechanism is used for driving the swing mechanism to reciprocate. The swing mechanism is used for driving the water pipe of the first pesticide spraying mechanism to swing in a reciprocating mode, the pesticide spraying range of the spray head is expanded, the flexibility and universality of the pesticide spraying device are enhanced, and the pesticide spraying effect of fruit trees is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the field of spraying devices, and particularly relates to a fruit tree spraying device. Background Art

[0002] In the fruit tree planting industry, pest control is a key link to ensure the healthy growth of fruit trees and improve the yield and quality of fruits. Among them, spraying operation, as the core means of pest control, its efficiency and effect directly affect the growth of fruit trees and the economic benefits of fruit farmers.

[0003] For a long time, manual spraying has been the main method of fruit tree spraying operation. In this operation mode, fruit farmers need to carry a heavy medicine box and hold a spraying rod, and spray the fruit trees row by row and plant by plant in the orchard. There are many drawbacks that cannot be ignored in this traditional operation mode: In terms of efficiency, the speed of manual operation is restricted by both the physical strength of the human body and the proficiency of operation. The physical strength of fruit farmers is limited. When carrying a medicine box and holding a spraying rod for a long time to operate, the physical strength will gradually decline, resulting in a slowdown in the operation speed. Moreover, the proficiency of operation also varies from person to person. Even for a skilled fruit farmer, when facing a large area orchard, it takes a lot of time to complete the spraying operation. For example, the orchard area that a skilled fruit farmer can complete the spraying operation in one day is relatively limited, usually only a few mu. For large orchards, with areas of dozens or even hundreds of mu, a large amount of manpower is required for manual spraying, and the operation cycle is long. This may lead to missing the best pest control opportunity, because pests have different characteristics and damage degrees at different stages. Missing the best control period, pests may have multiplied or spread in large numbers, thus affecting the control effect and increasing the difficulty and cost of subsequent control.

[0004] Analyzing from the aspect of labor intensity, carrying a medicine box and holding a spraying rod for a long time to operate is a huge test of the physical strength of fruit farmers. The weight of the medicine box is considerable when it is filled with liquid medicine. Fruit farmers need to continuously bear this weight during walking and operation, and at the same time operate the spraying rod to spray medicine, and various parts of the body bear greater pressure. Long-term work is likely to make fruit farmers feel fatigued, which not only reduces work efficiency, but also may cause damage to the physical health of fruit farmers, such as diseases in the waist, shoulders and other parts. These diseases will not only affect the current working state of fruit farmers, but also may have long-term adverse effects on their future life and work.

[0005] With the development of agricultural mechanization, self-propelled spraying devices have gradually been applied to fruit tree spraying operations, which has, to a certain extent, improved the automation level of spraying operations and reduced the labor burden of fruit farmers. However, most of the nozzles of existing self-propelled spraying devices adopt a fixed structure. Such fixed nozzles can only spray the liquid medicine to the position directly opposite the nozzle, and the spraying range is limited. For some fruit trees with relatively high heights, it is difficult for fixed nozzles to carry out effective spraying. Summary of the Invention

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a fruit tree spraying device to solve the problem that the spraying range of the existing fixed nozzle spraying device is limited, which affects the spraying effect of fruit trees.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is: A fruit tree spraying device includes: A frame, with a towing frame provided at the front end of the frame for connecting with a towing mechanism; a fixed frame is provided on the upper part of the frame, and a front wheel axle and a rear wheel axle are provided at the lower part of the frame, and tires are installed at both ends of the front wheel axle and the rear wheel axle; A medicine tank, installed inside the fixed frame. A water pump is installed on one side of the fixed frame. The water inlet pipe of the water pump is communicated with the medicine tank, and a water distributor is connected to the water outlet pipe of the water pump; the water distributor includes a housing, a communicating pipe connected to the water outlet pipe of the water pump is provided at the lower part of the housing, and a plurality of water distribution pipes are provided at the upper part of the housing; A first spraying mechanism, the first spraying mechanism includes a cross beam, both sides of the cross beam are installed on the frame through columns, water pipes are provided at both ends of the cross beam, the water pipes are rotatably connected to the cross beam through rotating rods, a fixing plate is fixedly connected to the rotating rod, and one end of the water pipe is connected to the water distributor through a hose; A swinging mechanism for driving the water pipe of the first spraying mechanism to swing, including a connecting plate, the middle of the connecting plate is movably connected to the cross beam through a movable shaft, one end of each of the two ends of the connecting plate is movably connected with a pull rod, and one end of the pull rod is movably connected to the fixing plate; A driving mechanism for driving the swinging mechanism to swing reciprocally, so as to drive the water pipe to swing reciprocally around the rotating rod through the pull rod.

[0008] Further, the driving mechanism includes a crankshaft, both ends of the crankshaft are fixedly connected to the rear wheel axle, a connecting rod is pivotally connected to the journal of the crankshaft, a guide rail is provided at the lower part of the frame, a rack is connected to one side of the guide rail, a guide groove is provided on the rack, the guide groove is movably connected to the guide rail, the other end of the connecting rod is pivotally connected to the rack, a spur gear is engaged with one side of the rack, a rotating shaft is fixedly connected to the spur gear, a second driving bevel gear is provided on the rotating shaft, and a second driven bevel gear is fixedly connected to one end of the movable shaft, and the second driving bevel gear and the second driven bevel gear are engaged with each other.

[0009] Further, two sets of stirring mechanisms are symmetrically arranged inside the medicine box. The stirring mechanism includes a stirring shaft, on which stirring blades are provided. The lower end of the stirring shaft is connected to a power mechanism for driving the stirring shaft to rotate.

[0010] Furthermore, the power mechanism includes two first driving bevel gears fixedly mounted on the front wheel shaft. The lower end of the stirring shaft extends to the lower part of the vehicle frame and is connected with a first driven bevel gear. A sealing structure is provided at the connection between the stirring shaft and the medicine box. The first driving bevel gear meshes with the first driven bevel gear.

[0011] Furthermore, the two first driving bevel gears on the front wheel shaft are arranged back to back or face to face.

[0012] Further, a spline shaft is fixedly connected to the rotating shaft. A bushing is provided on the second driving bevel gear. The bushing is in clearance fit with the spline shaft. One side of the bushing is threadedly connected with a fastening knob for fixing the bushing and the spline shaft. Two sets of sleeves are provided on one side of the cross beam. The sleeves are sleeved outside the column in a clearance manner. One side of the sleeve is threadedly connected with a bolt for fixing the cross beam and the column.

[0013] Further, fixing arms are provided on both sides of the vehicle frame. A second spraying mechanism is provided on the fixing arms. The second spraying mechanism has the same structure as the first spraying mechanism. The water pipe of the second spraying mechanism is horizontally arranged. The rotating rod of the second spraying mechanism is movably connected to the fixing arm. The connecting plate of the second spraying mechanism is fixedly connected to the rotating shaft.

[0014] Furthermore, an adjusting knob is threadedly connected to the hoop of the second spraying mechanism. The lower end of the adjusting knob abuts against the outer wall of the water pipe of the second spraying mechanism for adjusting the deflection angle of the water pipe of the second spraying mechanism, thereby adjusting the spraying angle of the nozzle of the second spraying mechanism.

[0015] Further, chutes are provided on both sides of the connecting plate. End plates are provided at the ends of the chutes. Sliders are slidably connected in the chutes. One end of a pull rod is pivotally connected to the slider. One side of the slider is fixedly connected with a screw rod. One end of the screw rod passes through the end plate and is threadedly connected with two adjusting nuts. The two adjusting nuts are respectively located on both sides of the end plate for adjusting the position of the slider in the chute, thereby adjusting the swinging amplitude of the water pipe.

[0016] The beneficial effects of the present invention are as follows: 1) The present invention uses a swinging mechanism to drive the water pipe of the first spraying mechanism to swing reciprocally, expanding the spraying range of the nozzle, enhancing the flexibility and versatility of the spraying device, and ensuring the spraying effect of fruit trees.

[0017] 2) The power of the driving mechanism comes from the rear wheel axle of the vehicle frame. There is no need to set up additional driving devices such as motors. This not only realizes the effective utilization and conversion of power, reduces the complexity and manufacturing cost of the equipment, but also avoids the energy consumption and equipment maintenance cost brought by additional motor drives.

[0018] 3) Two sets of stirring mechanisms are arranged inside the medicine box, and the power mechanisms of the two sets of stirring mechanisms come from the front wheel axle, realizing the real-time stirring of the pesticides in the medicine box, avoiding the stratification or precipitation of the drugs in the medicine box during spraying, making the concentration of the liquid medicine sprayed from the nozzle consistent, and thus improving the quality and effect of spraying.

[0019] 4) The height of the first spraying device is adjustable to adapt to the spraying of fruit trees of different varieties and at different growth stages, ensuring the versatility and practicability of the spraying device.

[0020] 5) The second spraying mechanism is arranged on both sides of the vehicle frame. The water pipe of the second spraying mechanism is horizontally arranged, forming a compound motion with the vertical swing of the first spraying mechanism. In addition, the deflection angle of the water pipe of the second spraying mechanism is adjustable, further enhancing the flexibility and versatility of the spraying device and ensuring the spraying range of the fruit trees.

[0021] 6) The position of the pull rod on the connecting plate is adjustable, so that the swing amplitude of the water pipe is adjustable, further ensuring the spraying effect of the drugs. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of a fruit tree spraying device of the present invention.

[0023] Figure 2 is a schematic structural diagram of the vehicle frame.

[0024] Figure 3 is a bottom view of the vehicle frame.

[0025] Figure 4 is a schematic internal view of the medicine box.

[0026] Figure 5 is an assembly schematic diagram of the first spraying mechanism and the second spraying mechanism.

[0027] Figure 6 is a schematic diagram of the swing mechanism.

[0028] Figure 7 is a schematic diagram of the water pipe connection of the second spraying mechanism.

[0029] Figure 8 is a schematic diagram of the driving mechanism.

[0030] In the figure, 1 is the vehicle frame; 11 is the front wheel axle; 12 is the first driving bevel gear; 13 is the rear wheel axle; 14 is the crankshaft; 15 is the towing frame; 16 is the fixing frame; 17 is the fixing arm; 2 is the medicine box; 21 is the water pump; 22 is the water distributor; 23 is the hose; 24 is the stirring shaft; 25 is the stirring blade; 26 is the first driven bevel gear; 3 is the first spraying mechanism; 31 is the column; 32 is the cross beam; 33 is the sleeve; 34 is the water pipe; 35 is the nozzle; 36 is the hoop; 37 is the adjusting knob; 38 is the rotating rod; 39 is the fixing plate; 4 is the swinging mechanism; 41 is the connecting plate; 42 is the sliding groove; 43 is the sliding block; 44 is the second driven bevel gear; 45 is the screw rod; 46 is the adjusting nut; 47 is the pull rod; 48 is the movable shaft; 5 is the second spraying mechanism; 6 is the driving mechanism; 61 is the connecting rod; 62 is the rack; 63 is the guide groove; 64 is the spur gear; 65 is the rotating shaft; 66 is the second driving bevel gear; 67 is the shaft sleeve; 68 is the fastening knob. Detailed implementation manners

[0031] The following will combine the attached Figures 1-8 , and clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0033] As Figure 1 shown, a fruit tree spraying device includes: a vehicle frame 1, a medicine box 2, a first spraying mechanism 3, a swinging mechanism 4 and a driving mechanism 6. A towing frame 15 is provided at the front end of the vehicle frame 1 for connecting with a towing mechanism. In other embodiments, the vehicle frame 1 can also be connected with a self-propelled mechanism to realize the self-propelled function; a fixing frame 16 is provided on the upper part of the vehicle frame 1, and a front wheel axle 11 and a rear wheel axle 13 are provided on the lower part of the vehicle frame 1. Tires are installed at both ends of the front wheel axle 11 and the rear wheel axle 13. As Figure 2 shown, the medicine box 2 is installed inside the fixing frame 16 to prevent the medicine box 2 from moving or even falling off the vehicle frame 1 when the spraying device moves. A water pump 21 is installed on one side of the fixing frame 16. The water inlet pipe of the water pump 21 is communicated with the medicine box 2, and a water distributor 22 is connected to the water outlet pipe of the water pump 21; AsFigure 5 As shown, the water separator 22 includes a housing. A connecting pipe connected to the water outlet pipe of the water pump 21 is provided at the lower part of the housing, and a plurality of water distribution pipes are provided at the upper part of the housing; As Figure 5 shown, the first spraying mechanism 3 includes a cross beam 32. Both sides of the cross beam 32 are installed on the vehicle frame 1 through columns 31. Water pipes 34 are provided at both ends of the cross beam 32. The water pipes 34 are rotatably connected to the cross beam 32 through rotating rods 38. A fixing plate 39 is fixedly connected to the rotating rod 38. One end of the water pipe 34 is connected to the water separator 22 through a flexible hose 23; The swinging mechanism 4 is used to drive the water pipe 34 of the first spraying mechanism 3 to swing. As Figure 5 、 Figure 6 shown, it includes a connecting plate 41. The middle part of the connecting plate 41 is movably connected to the cross beam 32 through a movable shaft 48. One movable connection is provided at each end of the connecting plate 41 with a pull rod 47. One end of the pull rod 47 is movably connected to the fixing plate 39; The driving mechanism 6 is used to drive the swinging mechanism 4 to swing reciprocally, so as to drive the water pipe 34 to swing reciprocally around the rotating rod 38 through the pull rod 47, expanding the spraying range of the spray head 35 and ensuring the spraying effect on fruit trees.

[0034] As Figure 8 shown, the driving mechanism 6 includes a crankshaft 14. Both ends of the crankshaft 14 are fixedly connected to the rear wheel axle 13. A connecting rod 61 is pivotally connected to the journal of the crankshaft 14. A guide rail (not shown in the figure) is provided at the lower part of the vehicle frame 1. A rack 62 is connected to one side of the guide rail. A guide groove 63 is provided on the rack 62. The guide groove 63 is movably connected to the guide rail. The other end of the connecting rod 61 is pivotally connected to the rack 62. A spur gear 64 is meshed with one side of the rack 62. A rotating shaft 65 is fixedly connected to the spur gear 64. A second driving bevel gear 66 is provided on the rotating shaft 65. As Figure 6 shown, one end of the movable shaft 48 is fixedly connected to a second driven bevel gear 44. The second driving bevel gear 66 and the second driven bevel gear 44 are meshed with each other; When the traction mechanism drives the frame 1 to move, the crankshaft 14 rotates following the axle. When the crankshaft 14 rotates, it drives the connecting rod 61 to swing. When the connecting rod 61 swings, it drives the rack 62 to reciprocate within the guide rail, thereby driving the spur gear 64 and the rotating shaft 65 to rotate reciprocally. When the rotating shaft 65 rotates reciprocally, it drives the connecting plate 41 to rotate reciprocally around the movable shaft 48 by means of the second driving bevel gear 66 and the second driven gear. When the connecting plate 41 rotates reciprocally, it drives the water pipe 34 to swing reciprocally around the rotating rod 38 by means of the pull rod 47, realizing the reciprocating swing of the nozzle 35, expanding the spraying range of the nozzle 35, and ensuring the spraying range of the fruit trees. The driving mechanism 6 innovatively uses the movement of the frame 1 as the power source, eliminating the need for additional driving devices such as motors. This not only realizes the effective utilization and conversion of power, reduces the complexity and manufacturing cost of the equipment, but also avoids the energy consumption and equipment maintenance cost brought by additional motor drives.

[0035] As Figure 4 shown, two groups of stirring mechanisms are symmetrically arranged inside the medicine box 2. The stirring mechanism includes a stirring shaft 24, on which stirring blades 25 are provided. The lower end of the stirring shaft 24 is connected to a power mechanism for driving the stirring shaft 24 to rotate. The stirring mechanism stirs the medicine inside the medicine box 2, ensuring the uniformity of the medicine mixture inside the medicine box 2.

[0036] As Figure 3 、 Figure 4 shown, the power mechanism includes two first driving bevel gears 12 fixedly installed on the front wheel axle 11. The lower end of the stirring shaft 24 extends to the lower part of the frame 1 and is connected with a first driven bevel gear 26. A sealing structure is provided at the connection between the stirring shaft 24 and the medicine box 2. The first driving bevel gear 12 meshes with the first driven bevel gear 26.

[0037] When the front wheel axle 11 rotates, it drives the first driven bevel gear 26 and the stirring shaft 24 to rotate through the first driving bevel gear 12. The stirring blades 25 on the stirring shaft 24 continuously stir the pesticide inside the medicine box 2, preventing the medicine inside the medicine box 2 from stratifying or precipitating during spraying, ensuring that the concentration of the liquid medicine sprayed from the nozzle 35 is consistent, thereby improving the quality and effect of spraying, ensuring that each part of the fruit tree can obtain the same concentration of medicine, and achieving the ideal purpose of pest control.

[0038] As Figure 3 shown, the two first driving bevel gears 12 on the front wheel axle 11 are arranged back to back or face to face, making the rotation directions of the two stirring shafts 24 opposite, further ensuring the uniformity of the medicine mixture.

[0039] As Figure 8As shown, a spline shaft is fixedly connected to the rotating shaft 65. A bushing 67 is provided on the second driving bevel gear 66. The bushing 67 is in clearance fit with the spline shaft. One side of the bushing 67 is threadedly connected with a fastening knob 68 for fixing the bushing 67 and the spline shaft. On one side of the cross beam 32, there are two sets of sleeves 33. The sleeves 33 are sleeved outside the column 31 with a clearance, and one side of the sleeve 33 is threadedly connected with a bolt for fixing the cross beam 32 and the column 31.

[0040] Fruit trees of different varieties and at different growth stages have significant height differences. Through the cooperation of the spline shaft and the bushing 67 and the connection method of the sleeve 33 and the column 31, the height of the first spraying mechanism 3 can be easily adjusted. When facing low fruit trees, farmers can conveniently lower the first spraying mechanism 3 to an appropriate height to ensure that the liquid medicine can be accurately sprayed onto all parts of the fruit trees, avoiding problems such as liquid medicine waste and uneven spraying. For tall fruit trees, just raise the first spraying mechanism 3 to achieve effective spraying on the top and higher parts of the fruit trees, ensuring that the entire fruit tree can be fully covered by the medicine, meeting the spraying requirements of fruit trees of different heights, and ensuring the versatility and practicality of the spraying device.

[0041] As Figure 1 , Figure 5 As shown, fixed arms 17 are provided on both sides of the vehicle frame 1. A second spraying mechanism 5 is provided on the fixed arms 17. The second spraying mechanism 5 has the same structure as the first spraying mechanism 3. The water pipe 34 of the second spraying mechanism 5 is horizontally arranged. The rotating rod 38 of the second spraying mechanism 5 is movably connected to the fixed arm 17. The connecting plate 41 of the second spraying mechanism 5 is fixedly connected to the rotating shaft 65.

[0042] When the vehicle frame 1 moves, the driving mechanism 6 drives the rotating shaft 65 to rotate reciprocally, thereby driving the water pipe 34 of the second spraying mechanism 5 to swing horizontally around the rotating rod 38 by means of the pull rod 47, forming a compound motion with the vertical swing of the first spraying mechanism 3, further ensuring the spraying range of the fruit trees.

[0043] As Figure 7 As shown, an adjusting knob 37 is threadedly connected to the clamp 36 of the second spraying mechanism 5. The lower end of the adjusting knob 37 abuts against the outer wall of the water pipe 34 of the second spraying mechanism 5 for adjusting the deflection angle of the water pipe 34 of the second spraying mechanism 5, thereby adjusting the spraying angle of the nozzle 35 of the second spraying mechanism 5, further enhancing the flexibility and versatility of the spraying device.

[0044] As Figure 6As shown, chutes 42 are provided on both sides of the connecting plate 41. End plates are provided at the ends of the chutes 42. A slider 43 is slidably connected in the chute 42. One end of a pull rod 47 is pivotally connected to the slider 43. One side of the slider 43 is fixedly connected to a screw rod 45. One end of the screw rod 45 passes through the end plate and is threadedly connected to two adjusting nuts 46. The two adjusting nuts 46 are respectively located on both sides of the end plate and are used to adjust the position of the slider 43 in the chute 42, so as to adjust the swing amplitude of the water pipe 34. In some embodiments, the distances of the two sliders 43 from the middle of the connecting plate 41 are equal, and the swing amplitudes of the water pipes 34 on both sides are the same. In other embodiments, the distances of the two sliders 43 from the middle of the connecting plate 41 may not be equal, and the swing amplitudes of the water pipes 34 on both sides are different. The specific swing amplitude can be determined according to the actual growth conditions of the fruit trees on both sides.

[0045] The above content is only an example and illustration of the structure of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar ways to replace them. As long as it does not deviate from the scope defined by the structure of the invention, it shall fall within the protection scope of the present invention.

Claims

1. A fruit tree spraying device, a frame. A towing frame is provided at the front end of the frame for connecting with a towing mechanism; a fixing frame is provided on the upper part of the frame, a front wheel axle and a rear wheel axle are provided at the lower part of the frame, and tires are installed at both ends of the front wheel axle and the rear wheel axle. A medicine box is installed inside the fixing frame. A water pump is installed on one side of the fixing frame. The water inlet pipe of the water pump is communicated with the medicine box, and a water distributor is connected to the water outlet pipe of the water pump; the water distributor includes a housing, a communicating pipe connected to the water outlet pipe of the water pump is provided at the lower part of the housing, and a plurality of water distribution pipes are provided at the upper part of the housing. Characterized in that, It further includes a first spraying mechanism. The first spraying mechanism includes a cross beam. Both sides of the cross beam are installed on the frame through columns. Water pipes are provided at both ends of the cross beam. The water pipes are rotatably connected to the cross beam through rotating rods. A fixing plate is fixedly connected to the rotating rod. One end of the water pipe is connected to the water distributor through a hose. A swinging mechanism for driving the water pipe of the first spraying mechanism to swing, including a connecting plate. The middle of the connecting plate is movably connected to the cross beam through a movable shaft. One movable connection rod is provided at each end of the connecting plate. One end of the connecting rod is movably connected to the fixing plate. A driving mechanism for driving the swinging mechanism to swing reciprocally, so as to drive the water pipe to swing reciprocally around the rotating rod through the connecting rod.

2. The fruit tree spraying device according to claim 1, characterized in that, The driving mechanism includes a crankshaft. Both ends of the crankshaft are fixedly connected to the rear wheel axle. A connecting rod is pivotally connected to the journal of the crankshaft. A guide rail is provided at the lower part of the frame. A rack is connected to one side of the guide rail. A guide groove is provided on the rack, and the guide groove is movably connected to the guide rail. The other end of the connecting rod is pivotally connected to the rack. A spur gear is meshed with one side of the rack. A rotating shaft is fixedly connected to the spur gear. A second driving bevel gear is provided on the rotating shaft. A second driven bevel gear is fixedly connected to one end of the movable shaft. The second driving bevel gear and the second driven bevel gear are meshed with each other.

3. The fruit tree spraying device according to claim 1, characterized in that, Two groups of stirring mechanisms are symmetrically provided inside the medicine box. The stirring mechanism includes a stirring shaft. Stirring blades are provided on the stirring shaft. The lower end of the stirring shaft is connected to a power mechanism for driving the stirring shaft to rotate.

4. The fruit tree spraying device according to claim 3, wherein, The power mechanism includes two first driving bevel gears fixedly installed on the front wheel axle. The lower end of the stirring shaft extends to the lower part of the frame and is connected with a first driven bevel gear. A sealing structure is provided at the connection of the stirring shaft and the medicine box. The first driving bevel gear and the first driven bevel gear are meshed with each other.

5. The fruit tree spraying device according to claim 4, wherein, The two first driving bevel gears on the front wheel axle are arranged back to back or face to face.

6. The fruit tree spraying device according to claim 2, wherein, A spline shaft is fixedly connected to the rotating shaft. A shaft sleeve is provided on the second driving bevel gear. The shaft sleeve is in clearance fit with the spline shaft. A fastening knob is threadedly connected to one side of the shaft sleeve for fixing the shaft sleeve and the spline shaft; two groups of sleeves are provided on one side of the cross beam. The sleeves are sleeved outside the column with a clearance, and a bolt is threadedly connected to one side of the sleeve for fixing the cross beam and the column.

7. A fruit tree spraying device according to any one of claims 1-6, characterized in that, Fixed arms are provided on both sides of the frame. A second spraying mechanism is provided on the fixed arms. The second spraying mechanism has the same structure as the first spraying mechanism. The water pipes of the second spraying mechanism are arranged horizontally. The rotating rod of the second spraying mechanism is movably connected to the fixed arm. The connecting plate of the second spraying mechanism is fixedly connected to the rotating shaft.

8. The fruit tree spraying device according to claim 7, characterized in that, A regulating knob is threadedly connected to the hoop of the second spraying mechanism. The lower end of the regulating knob abuts against the outer wall of the water pipe of the second spraying mechanism, and is used to adjust the deflection angle of the water pipe of the second spraying mechanism, so as to adjust the spraying angle of the nozzle of the second spraying mechanism.

9. The fruit tree spraying device according to claim 7, wherein, Both sides of the connecting plate are provided with sliding grooves, and end plates are provided at the ends of the sliding grooves. Sliders are slidably connected in the sliding grooves. One end of a pull rod is pivotally connected to the slider. One side of the slider is fixedly connected with a screw rod. One end of the screw rod passes through the end plate and is threadedly connected with two adjusting nuts. The two adjusting nuts are respectively located on both sides of the end plate, and are used to adjust the position of the slider in the sliding groove, so as to adjust the swinging amplitude of the water pipe.

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