Nozzle for plant protection and working method

Abstract

The invention relates to the technical field of plant protection unmanned aerial vehicles, in particular to a plant protection spray nozzle and a working method thereof.The plant protection spray nozzle comprises an unmanned aerial vehicle support, a motor shaft, a transmission gear, a spray pipe, a rotating shaft, an atomization spray head, a switching piece, a transmission component, a locking component, an adjusting component, a reset component, a mounting component and an atomization component; the transmission component is used for pushing the transmission gear downwards to enable the transmission gear to be disengaged from the rotating shaft, the locking component locks the rotating shaft when the transmission gear is disengaged from the rotating shaft, and the mounting component retracts the switching piece into the nozzle groove and fixes the atomizing nozzle and the rotating shaft when the rotating shaft is fixed. The reset component enables the switching piece to extend out of the nozzle groove after the atomization nozzle and the rotating shaft are fixed, the atomization component is matched with the switching piece and the atomization nozzle to spray out water mist when the motor shaft rotates forwards, and the adjusting component is matched with the locking component to lock the rotating shaft when the motor shaft rotates backwards and controls the spraying pipe to rotate to a proper angle to be matched with the atomization component to spray out a water column.

Description

Technical Field

[0001] The invention relates to the technical field of plant protection UAVs, and in particular to a plant protection nozzle and a working method thereof. Background Art

[0002] In recent years, with the development needs of agricultural modernization, agricultural and forestry plant protection spraying technology has developed rapidly. The commonly used nozzles in plant protection spraying devices are mainly divided into pressure nozzles and centrifugal nozzles. Among them, the liquid droplet spectrum produced by the traditional pressure nozzle is wider and the spraying distance is longer, which is suitable for spraying through leaves and branches of vegetation. The liquid produced by the centrifugal nozzle is evenly atomized and has a wider spraying area, which is suitable for spraying large areas of leaves. The existing pesticide nozzles for plant protection drones have a single spraying operation mode during use. The corresponding nozzles need to be replaced according to the production habits of different plants, and the adaptability is poor.

[0003] In the prior art, for example, the pesticide sprayer for a plant protection drone with patent number CN110973096B performs vertical spraying operations through a spray port on a spray frame. The spray port is closed when the driving mechanism is working, and the pesticide is sprayed in an inclined direction through a docking tube. The spraying mode is automatically switched, and different spraying methods can be selected according to the growth habits of different plants.

[0004] The prior art provides nozzles that can switch between different spraying angles and flow rates. However, when faced with a high density of vegetation and a need for large-area uniform spraying to protect the vegetation, the existing nozzle spraying method is single. It is impossible to achieve uniform spraying of the vegetation only by adjusting the spraying angle and flow rate. It is still necessary to replace the centrifugal nozzle to meet the requirements of large-scale and more uniform spraying. However, the centrifugal nozzle is generally driven by a rotating shaft. When the nozzle needs to be replaced, the rotating shaft will rotate synchronously with the installation of the nozzle. Personnel are required to fix the rotating shaft by hand or tools, and then fix the nozzle to the lower end of the rotating shaft with bolts, resulting in inconvenience in operation when installing and replacing nozzles with different functions. In addition, when replacing and disassembling the nozzle, there may be pesticide residues on the nozzle, which makes it inconvenient for the operator to replace the nozzle, and may also cause the pesticide to contaminate their hands.

[0005] Therefore, a nozzle for plant protection and a working method thereof are proposed. Summary of the invention

[0006] The object of the present invention is to provide a nozzle for plant protection and a working method thereof, in view of the problem that the spraying operation mode of the nozzle in the prior art is single and it is inconvenient to disassemble and replace different nozzles.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A nozzle for plant protection, comprising a drone bracket, a motor shaft, a transmission gear, a nozzle, a rotating shaft, an atomizing nozzle, a switching piece, a transmission component, a locking component, an adjusting component, a resetting component, a mounting component and an atomizing component, wherein the nozzle is rotatably connected to the drone bracket, the motor shaft is arranged in the nozzle, the transmission gear is connected to the lower end of the motor shaft, the rotating shaft is connected to the lower end of the transmission gear, the atomizing nozzle is mounted at the lower end of the rotating shaft, a nozzle slot is arranged in the atomizing nozzle, the switching piece is arranged in the nozzle slot, the transmission component is arranged at the lower end of the motor shaft, and is used to push the transmission gear downward to disengage the transmission gear from the rotating shaft, and the locking component is arranged in the rotating shaft, which is arranged in the transmission When the gear is disengaged from the rotating shaft, the rotating shaft is locked. The mounting component is arranged at the lower end of the atomizing nozzle. When the rotating shaft is fixed, the switching piece is retracted into the nozzle slot and the atomizing nozzle is fixed to the rotating shaft. The resetting component is arranged on the side of the rotating shaft. After the atomizing nozzle is fixed to the rotating shaft, the switching piece is extended out of the nozzle slot, and the transmission gear is pushed upward to unlock the rotating shaft. The rotating shaft is meshed with the transmission gear. The atomizing component is arranged in the nozzle. When the motor shaft rotates forward, it cooperates with the switching piece and the atomizing nozzle to spray a large area of ​​water mist. The adjusting component is arranged on the side wall of the nozzle. When the motor shaft is reversed, it cooperates with the locking component to lock the rotating shaft, and controls the nozzle to rotate to a suitable angle and then cooperates with the atomizing component to spray a water column with a long range.

[0009] Preferably, the transmission component includes a connecting shaft, an ascending groove, a transmission spring, a wedge block, a wedge groove, a gear stopper and a transmission stopper. A driving motor is arranged in the nozzle, and the driving motor is connected to the upper end of the motor shaft. The ascending groove is opened at the lower end of the motor shaft. The connecting shaft is arranged at the upper end of the transmission gear. The connecting shaft is slidingly connected to the ascending groove. The wedge block is arranged in the ascending groove. The wedge groove is opened on the upper side of the connecting shaft. The wedge block cooperates with the wedge groove. The transmission spring is sleeved on the outside of the connecting shaft. The two ends of the transmission spring are respectively connected to the upper end of the transmission gear and the lower end of the motor shaft. A connecting groove is arranged in the connecting shaft. The gear stopper is arranged in the connecting groove. The transmission stopper is arranged on the rotating shaft, and the transmission stopper cooperates with the gear stopper.

[0010] Preferably, the locking component includes a locking guide groove, a locking baffle, a locking groove, a locking spring, a locking block and a locking slot, the locking guide groove is arranged at the upper end of the gear block in the connecting groove, the locking groove is opened in the rotating shaft, the locking baffle is slidably connected in the locking groove, the upper end of the locking baffle is connected to the transmission block on the side away from the center of the rotating shaft, the two ends of the locking spring are respectively connected to the side of the locking baffle close to the center of the rotating shaft and the inner wall of the rotating shaft, the locking block is fixedly connected to the lower end of the locking baffle close to the transmission block, the locking slot is arranged in the nozzle, the locking guide groove cooperates with one end of the transmission block away from the locking baffle, and the end of the locking block away from the locking baffle cooperates with the locking slot.

[0011] Preferably, the mounting component includes a mounting block, a threaded groove, a bolt, a lever, a lever groove and a mounting groove, the mounting block is fixedly connected to the lower end of the rotating shaft, the mounting groove is arranged at the upper end of the atomizing nozzle, the mounting block is connected to the mounting groove, the threaded groove is arranged at the bottom of the mounting block, the bolt is arranged at the center of the atomizing nozzle, the bolt and the threaded groove are detachably connected, the lever groove is arranged at the lower end of the atomizing nozzle, the lever groove is connected to the nozzle groove, the lever is arranged at the lower end of the switching piece, the lever extends out of the lower end of the atomizing nozzle through the lever groove, a plurality of atomizing grooves are arranged on the atomizing nozzle, a plurality of water grooves are arranged on the switching piece, and the atomizing groove cooperates with the water groove.

[0012] Preferably, a retreat groove is provided at the lower end of the switching piece, the lever groove is slidably connected in the retreat groove, a retreat spring is provided at the upper end of the lever, the retreat spring is connected to the inner wall of the switching piece away from the end of the lever, and the lower end of the lever cooperates with a bolt.

[0013] Preferably, the reset component includes a switching groove, a switching spring, a switching block, a switching turntable, a lifting ring, a lifting block, a lifting baffle, a lifting groove and a gear retaining ring, the switching groove is opened at the upper end of the atomizing nozzle, the switching block is arranged in the switching groove, the lower end of the switching block is connected to the switching piece, the switching spring is connected to the side of the switching block, the switching spring abuts against the inner wall of the atomizing nozzle at one end away from the switching block, the lifting groove is opened at the lower end of the nozzle, the lifting block is slidably connected in the lifting groove, the lifting ring is fixedly connected to the lower end of the lifting block, the switching turntable is rotatably connected to the lower end of the lifting ring, the lower end of the switching turntable is opened with a downward moving groove, the upper end of the switching block is provided with a one-way wheel, the one-way wheel is fitted with the lower end of the switching turntable, the downward moving groove cooperates with the upper end of the switching block, the gear retaining ring is arranged at the lower end of the transmission gear, the lifting baffle is arranged on the side of the lifting block, the lifting baffle extends out of the nozzle away from the side of the lifting block, and the upper end of the lifting block cooperates with the lower end of the gear retaining ring.

[0014] Preferably, the atomizing component includes a water inlet pipe, a water spray trough, an atomizing wall and a sealing unit, the water inlet pipe is connected to the side of the nozzle, the water spray trough is opened in the nozzle, the water inlet pipe is connected to the water spray trough, the atomizing wall is arranged at the lower end of the nozzle, and the sealing unit is arranged on the outside of the rotating shaft.

[0015] Preferably, the sealing unit comprises a first sealing baffle ring and a second sealing baffle ring, wherein the first sealing baffle ring is arranged at the lower end of the nozzle, and the second sealing baffle ring is arranged at the upper end of the atomizing nozzle, and the first sealing baffle ring and the second sealing baffle ring are fitted inside and outside.

[0016] Preferably, the adjusting component includes a connecting gear, a gear shaft, an inner adjusting gear, an outer adjusting gear, a rotating shaft and a rotating groove, the connecting gear is arranged on the side of the transmission gear, the connecting gear cooperates with the transmission gear, the gear shaft is rotatably connected to the side wall of the nozzle, the connecting gear is fixedly connected to the gear shaft on the side away from the transmission gear, the inner adjusting gear is connected to the end of the gear shaft away from the transmission gear, the outer adjusting gear is arranged on the UAV bracket, the outer adjusting gear is meshed with the inner adjusting gear, the rotating shaft is arranged on the UAV bracket, the rotating shaft is concentric with the inner adjusting gear, the rotating groove is opened on both sides of the nozzle, and the rotating shaft is rotatably connected to the nozzle.

[0017] A method for operating a plant protection nozzle includes the plant protection nozzle described above and the following operating steps:

[0018] The switch piece is driven into the nozzle slot by rotating the lever, so that when the atomizing nozzle is installed to the lower end of the rotating shaft, the switch piece can be inserted into the downward moving slot;

[0019] By pulling the lifting baffle plate, the switching block is pulled out of the lower moving slot, so that the switching piece is rotated out of the nozzle slot, so that when the driving motor rotates in the forward direction, the atomizing nozzle can be driven to spray atomized liquid;

[0020] By controlling the driving motor to reverse, the switching block is inserted into the downward moving groove, and the transmission gear is moved downward to lock the rotating shaft, ensuring that the rotating shaft will not rotate when the atomizing nozzle sprays a long-range water column;

[0021] By moving the transmission gear downward to mesh with the connecting gear, the driving motor can be rotated to drive the atomizing nozzle to adjust the angle;

[0022] By stopping the driving motor, the atomizing nozzle maintains the spray angle, and the water column is sprayed at a longer distance.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention arranges a locking component in the nozzle pipe so that the rotating shaft is locked when the atomizing nozzle of the plant protection nozzle is installed, thereby facilitating the installation of the atomizing nozzle. A switching piece is arranged in the atomizing nozzle so that the atomizing nozzle is automatically unlocked after installation and meshed with the motor shaft, so that when the driving motor rotates forward, the plant protection nozzle can realize atomization spraying over a large area, thereby improving the spraying area and spraying efficiency. After the driving motor is reversed, the spraying mode of the atomizing nozzle is automatically switched, so that the plant protection nozzle can perform long-distance spraying without replacing the nozzle. At the same time, the spraying angle can be adjusted so that when the plant protection nozzle performs long-distance spraying, the liquid can be accurately sprayed onto the vegetation at a better spray angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0027] Figure 3 It is an enlarged structural schematic diagram of the transmission component of the present invention;

[0028] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at A in the middle;

[0029] Figure 5 It is a schematic diagram of the exploded structure of the installation component of the present invention;

[0030] Figure 6 It is a schematic diagram of the explosion structure of the reset component of the present invention;

[0031] Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle;

[0032] Figure 8 For the present invention Figure 6 The enlarged structural diagram at C in the middle;

[0033] Fig. 9 It is a schematic diagram of the cross-sectional structure of the adjusting component of the present invention;

[0034] Fig.10 It is a schematic diagram of the cross-sectional structure of the atomizing component of the present invention.

[0035] In the figure: 1. UAV bracket; 2. Motor shaft; 3. Transmission gear; 4. Nozzle; 41. Drive motor; 5. Rotating shaft; 6. Atomizing nozzle; 61. Nozzle slot; 62. Atomizing slot; 7. Switching piece; 71. Water channel; 72. Retreat slot; 73. Retreat spring; 8. Transmission component; 9. Locking component; 101. Adjustment component; 102. Reset component; 103. Installation component; 104. Atomizing component; 81. Connecting shaft; 811. Connecting slot; 82. Rising slot; 83. Transmission spring; 84. Wedge block; 85. Wedge slot; 86. Gear block; 87. Transmission block; 91. Locking guide slot; 92. Locking baffle; 93. Locking slot; 94. Locking spring; 95. Locking block; 96. Locking slot; 1031. Installation block; 1032. Threaded slot ; 1033, bolt; 1034, lever; 10345, lever slot; 10346, mounting slot; 1021, switching slot; 1022, switching spring; 1023, switching block; 10231, one-way wheel; 1024, switching turntable; 10241, downward slot; 1025, lifting ring; 1026, lifting block; 1027, lifting baffle; 1028, lifting slot; 1029, gear retaining ring; 1041, water inlet pipe; 1042, water spray slot; 1043, atomizing wall; 1044, sealing unit; 10441, first sealing retaining ring; 10442, second sealing retaining ring; 1011, connecting gear; 1012, gear shaft; 1013, inner adjusting gear; 1014, outer adjusting gear; 1015, rotating shaft; 1016, rotating slot. DETAILED DESCRIPTION

[0036] In order to make the technical solutions in the embodiments of the present invention clearly and completely described, and the features and advantages can be more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] Example 1

[0038] See also Figures 1 to 10The present invention provides a nozzle for plant protection, comprising a drone bracket 1, a nozzle 4, a motor shaft 2, a transmission gear 3, a rotating shaft 5, an atomizing nozzle 6, a switching piece 7, a transmission component 8, a locking component 9, a mounting component 103, a reset component 102 and an adjusting component 101, the nozzle 4 is rotatably connected to the drone bracket 1, the motor shaft 2 is arranged in the nozzle 4, the transmission gear 3 is connected to the lower end of the motor shaft 2, the rotating shaft 5 is connected to the lower end of the transmission gear 3, the atomizing nozzle 6 is installed at the lower end of the rotating shaft 5, a nozzle slot 61 is arranged in the atomizing nozzle 6, the switching piece 7 is arranged in the nozzle slot 61, the transmission component 8 is arranged at the lower end of the motor shaft 2, and is used to push the transmission gear 3 downward to disengage the transmission gear 3 from the rotating shaft 5, and the locking component 9 is used to push the transmission gear 3 downward to disengage the transmission gear 3 from the rotating shaft 5. Component 9 is arranged in the rotating shaft 5, and locks the rotating shaft 5 when the transmission gear 3 is disengaged from the rotating shaft 5. The mounting component 103 is arranged at the lower end of the atomizing nozzle 6. When the rotating shaft 5 is fixed, the switching piece 7 is retracted into the nozzle slot 61 and the atomizing nozzle 6 is fixed to the rotating shaft 5. The resetting component 102 is arranged on the side of the rotating shaft 5. After the atomizing nozzle 6 is fixed to the rotating shaft 5, the switching piece 7 is extended out of the nozzle slot 61, and the transmission gear 3 is pushed upward to unlock the rotating shaft 5, so that the motor shaft 2 drives the atomizing nozzle 6 to rotate when it rotates forward. The adjusting component 101 is arranged on the side wall of the nozzle 4, and cooperates with the transmission component 8 to move the transmission gear 3 downward when the motor shaft 2 is reversed, and cooperates with the drone bracket 1 to drive the nozzle 4 to rotate and adjust the angle after the transmission gear 3 is moved downward.

[0039] See also Figures 2 to 4Specifically, the transmission component 8 includes an ascending groove 82, a connecting shaft 81, a wedge block 84, a wedge groove 85, a transmission spring 83, a gear block 86 and a transmission block 87. A driving motor 41 is arranged in the nozzle 4, and the driving motor 41 is connected to the upper end of the motor shaft 2. The ascending groove 82 is arranged at the lower end of the motor shaft 2, and the connecting shaft 81 is arranged at the upper end of the transmission gear 3. The connecting shaft 81 is slidably connected with the ascending groove 82, the wedge block 84 is arranged in the ascending groove 82, and the wedge groove 85 is arranged on the upper side of the connecting shaft 81. The wedge block 84 is slidably connected with the wedge groove 85, and the sliding direction is up and down. When the driving motor 41 drives the motor shaft 2 to rotate, the motor shaft 2 can drive the connecting shaft 81 and the transmission gear 3 at its lower end to rotate under the cooperation of the wedge block 84 and the wedge groove 85. When the transmission gear 3 moves up and down, the wedge block 84 can move along the wedge groove 85. Sliding up and down, the transmission spring 83 is sleeved on the outside of the connecting shaft 81, and the two ends of the transmission spring 83 are respectively connected to the upper end of the transmission gear 3 and the lower end of the motor shaft 2. A connecting groove 811 is arranged in the connecting shaft 81, and the gear stopper 86 is arranged in the connecting groove 811. The transmission stopper 87 is arranged on the rotating shaft 5. The transmission stopper 87 cooperates with the gear stopper 86. The cooperation here means that when the transmission gear 3 moves upward, the transmission gear 3 can move upward with the gear stopper 86 to the horizontal position with the transmission stopper 87 on the rotating shaft 5. When the driving motor 41 rotates, the motor shaft 2 can drive the connecting shaft 81 and the transmission gear 3 to rotate, and the rotation of the connecting shaft 81 drives the gear stopper 86 to rotate. When the gear stopper 86 rotates, the side of the gear stopper 86 fits with the side of the transmission stopper 87, and drives the transmission stopper 87 and the rotating shaft 5 to rotate.

[0040] See also Figure 3 to Figure 4Specifically, the locking component 9 includes a locking guide groove 91, a locking groove 93, a locking baffle 92, a locking spring 94, a locking block 95 and a locking slot 96. The locking guide groove 91 is arranged at the upper end of the gear block 86 in the connecting groove 811, the locking groove 93 is arranged in the rotating shaft 5, the locking baffle 92 is slidably connected in the locking groove 93, the upper end of the locking baffle 92 is connected to the transmission block 87 away from the center of the rotating shaft 5, the two ends of the locking spring 94 are respectively connected to the locking baffle 92 close to the center of the rotating shaft 5 and the inner wall of the rotating shaft 5, the locking block 95 is fixedly connected to the lower end of the locking baffle 92 close to the transmission block 87, and the locking slot 96 is arranged in the nozzle 4. The inner diameter of the locking guide groove 91 increases from bottom to top, and the locking guide groove 91 cooperates with the end of the transmission block 87 away from the locking baffle 92. The cooperation here means that when the transmission gear 3 moves up and down When the transmission gear 3 drives the locking guide groove 91 to move up and down, during this process, the transmission block 87, under the action of the locking spring 94 and the locking baffle 92, the end of the transmission block 87 away from the locking baffle 92 is always in contact with the locking guide groove 91, so that when the transmission block 87 moves up in the locking guide groove 91, it moves toward the side close to the center of the rotating shaft 5, and when the locking guide groove 91 moves down, the transmission block 87 moves to the side away from the center of the rotating shaft 5, and the end of the locking block 95 away from the locking baffle 92 cooperates with the locking slot 96. The cooperation here means that when the transmission block 87 moves to the side away from the center of the rotating shaft 5, the locking block 95 on the side of the locking baffle 92 extends out of the rotating shaft 5 and cooperates with the locking slot 96 on the nozzle 4, so that the rotating shaft 5 cannot rotate relative to the nozzle 4. On the contrary, the locking block 95 retracts into the rotating shaft 5, and the rotating shaft 5 can rotate relative to the nozzle 4.

[0041] See also Figures 5 to 7 Specifically, the mounting component 103 includes a mounting block 1031, a mounting groove 10346, a threaded groove 1032, a bolt 1033, a shifting groove 10345 and a shifting rod 1034. The mounting block 1031 is fixedly connected to the lower end of the rotating shaft 5, the mounting groove 10346 is provided at the upper end of the atomizing nozzle 6, the mounting block 1031 is connected to the mounting groove 10346, the mounting block 1031 is a polygonal block, the mounting groove 10346 has the same shape as the mounting block 1031, the threaded groove 1032 is provided at the bottom of the mounting block 1031, and the bolt 1033 is provided in the atomizing nozzle 6. The bolt 1033 is detachably connected to the thread groove 1032, the pull groove 10345 is arranged at the lower end of the atomizing nozzle 6, the pull groove 10345 is connected to the nozzle groove 61, the pull rod 1034 is arranged at the lower end of the switching piece 7, the pull rod 1034 extends out of the lower end of the atomizing nozzle 6 through the pull groove 10345, a plurality of atomizing grooves 62 are arranged on the atomizing nozzle 6, and the plurality of atomizing grooves 62 vertically penetrate the upper and lower sides of the atomizing nozzle 6, and a plurality of water grooves 71 are arranged on the switching piece 7, the number of the water grooves 71 is the same as the number of the atomizing grooves 62, and the water grooves 71 vertically penetrate the upper and lower sides of the switching piece 7.

[0042] See also Figures 5 to 7Specifically, the outer mass of the switching piece 7 is higher than the central mass. In order to provide more inertia force during rotation, a retreat groove 72 is provided at the lower end of the switching piece 7, and the lever 1034 groove is slidably connected to the retreat groove 72. A retreat spring 73 is provided at the upper end of the lever 1034. The retreat spring 73 is connected to the inner wall of the switching piece 7 away from the lever 1034. The lower end of the lever 1034 cooperates with the bolt 1033, and the nut at the lower end of the bolt 1033 can abut against the lower end of the lever 1034. The design here is that after the atomizing nozzle 6 is plugged into the nozzle 4, when the operator tightens the bolt 1033, the upper end of the nut can push the lever 1034 into the retreat groove 72 during the upward tightening of the nut at the lower end, so that the lever 1034 will not be exposed on the side of the nut to affect the operation when the bolt 1033 is tightened.

[0043] See also Figures 5 to 7Specifically, the reset component 102 includes a switching groove 1021, a switching block 1023, a switching spring 1022, a switching turntable 1024, a lifting ring 1025, a lifting block 1026, a lifting groove 1028, a lifting baffle 1027 and a gear retaining ring 1029. The switching groove 1021 is opened at the upper end of the atomizing nozzle 6, the switching block 1023 is arranged in the switching groove 1021, the lower end of the switching block 1023 is connected to the switching piece 7, the switching spring 1022 is connected to the side of the switching block 1023, and the switching spring 1022 is away from the switching One end of the switching block 1023 is in contact with the inner wall of the atomizing nozzle 6, a lifting groove 1028 is provided at the lower end of the nozzle 4, a lifting block 1026 is slidably connected in the lifting groove 1028, a lifting ring 1025 is fixedly connected to the lower end of the lifting block 1026, a switching turntable 1024 is rotatably connected to the lower end of the lifting ring 1025, a downward moving groove 10241 is provided at the lower end of the switching turntable 1024, and a one-way wheel 10231 is provided at the upper end of the switching block 1023 (the key physical principle of the one-way wheel 10231 is that the ball and gear inside the one-way wheel 10231 are Or there is a special mechanical device on the roller, which can make it roll smoothly in one direction, but will encounter greater resistance when rolling in the other direction (not shown in detail in the figure), the one-way wheel 10231 is in contact with the lower end of the switching turntable 1024, and when the switching block 1023 rotates forward, the one-way wheel 10231 at the lower end of the switching turntable 1024 rotates with the switching block 1023, and cannot rotate due to greater resistance. On the contrary, the one-way wheel 10231 can be in contact with the switching turntable 1024 for rolling friction, and the lower moving groove 10241 is in contact with the switching turntable 1024. The upper end of the switching block 1023 cooperates. The cooperation here means that when the one-way wheel 10231 at the upper end of the switching block 1023 moves to the lower end of the downward groove 10241, the switching turntable 1024 can move downward to insert the switching block 1023 into the downward groove 10241, the gear retaining ring 1029 is set at the lower end of the transmission gear 3, and the lifting baffle 1027 is set on the side of the lifting block 1026. The lifting baffle 1027 extends out of the nozzle 4 away from the side of the lifting block 1026, and the upper end of the lifting block 1026 is in contact with the lower end of the gear retaining ring 1029.

[0044] See also Figures 6 to 10 Specifically, the atomizing component 104 includes a water inlet pipe 1041, a water spray groove 1042, an atomizing wall 1043, an atomizing groove 62 and a sealing unit 1044. The water inlet pipe 1041 is connected to the side of the nozzle 4, the water spray groove 1042 is opened in the nozzle 4, the water inlet pipe 1041 is connected to the water spray groove 1042, the atomizing wall 1043 is arranged at the lower end of the nozzle 4, the atomizing groove 62 is penetrated and arranged on the atomizing nozzle 6, and the sealing unit 1044 is arranged on the outside of the rotating shaft 5.

[0045] See also Figure 6Specifically, a first sealing ring 10441 is provided at the lower end of the nozzle 4, and a second sealing ring 10442 is provided at the upper end of the atomizing nozzle 6. The first sealing ring 10441 and the second sealing ring 10442 fit together inside and outside, which can effectively prevent water sprayed from the nozzle 4 from entering the connection between the atomizing nozzle 6 and the nozzle 4, causing the connection to be corroded after long-term use.

[0046] See also Figures 6 to 9 Specifically, the adjusting component 101 includes a connecting gear 1011, a gear shaft 1012, an inner adjusting gear 1013, an outer adjusting gear 1014, a rotating shaft 10155 and a rotating groove 1016. The connecting gear 1011 is arranged on the side of the transmission gear 3. The connecting gear 1011 and the transmission gear 3 are both bevel gears. The connecting gear 1011 cooperates with the transmission gear 3. The cooperation here means that when the transmission gear 3 moves downward, the transmission gear 3 is meshed with the connecting gear 1011, and when the transmission gear 3 moves upward, the transmission gear 3 is disengaged from the connecting gear 1011. The gear shaft 1012 is rotationally connected to the side wall of the nozzle 4, the connecting gear 1011 is fixedly connected to the gear shaft 1012 on the side away from the transmission gear 3, the inner adjusting gear 1013 is connected to the end of the gear shaft 1012 away from the transmission gear 3, the outer adjusting gear 1014 is arranged on the UAV bracket 1, the outer adjusting gear 1014 is meshed with the inner adjusting gear 1013, the rotating shaft 10155 is arranged on the UAV bracket 1, the rotating shaft 10155 is concentric with the inner adjusting gear 1013, the rotating groove 1016 is opened on both sides of the nozzle 4, and the rotating shaft 10155 is rotationally connected to the nozzle 4.

[0047] Working principle: before installing the atomizing nozzle 6, the transmission gear 3 is downwardly fitted with the connecting gear 1011 under the action of the transmission spring 83, and the gear retaining ring 1029 at the lower end of the transmission gear 3. At this time, the transmission block 87 on the rotating shaft 5 extends out of the rotating shaft 5 along the locking guide groove 91 under the action of the locking spring 94. At this time, the locking block 95 at the lower end of the locking baffle 92 also extends out of the rotating shaft 5, and the locking block 95 is inserted into the locking slot 96 on the nozzle 4, so that when the operator turns the bolt 1033 when installing the atomizing nozzle 6, the rotating shaft 5 will not rotate relative to the nozzle 4 due to the rotation of the bolt 1033, which is convenient for the operator to install and disassemble the atomizing nozzle 6.

[0048] When installing the atomizing nozzle 6, since the switching piece 7 in the atomizing nozzle 6 is supported by the switching spring 1022, the switching block 1023 abuts against the inner wall of the atomizing nozzle 6 on the side away from the switching spring 1022, and the switching piece 7 remains in a state of being rotated out of the nozzle slot 61, and the water channel 71 on the switching piece 7 is not connected to the atomizing slot 62. When the mounting block 1031 is aligned with the mounting slot 10346, the one-way wheel 10231 at the upper end of the switching block 1023 is directly opposite to the lower end of the switching turntable 1024. In order to prevent the one-way wheel 10231 at the upper end of the switching block 1023 from abutting against the lower end of the switching turntable 1024 when installing the atomizing nozzle 6, the switching block 1023 is prevented from pushing the switching turntable 1024, the lifting ring 1025, and the lifting block 1026 upward when installing the atomizing nozzle 6, thereby causing the transmission gear 3 to move upward, preventing the transmission block in the rotating shaft 5 from 87 is retracted into the rotating shaft 5 along the locking guide groove 91 to prevent the locking block 95 from pulling out the locking pin, resulting in that when the bolt 1033 is tightened, the rotating shaft 5 and the nozzle 4 are not locked, and relative rotation will occur, making the bolt 1033 difficult to tighten. The slot 10345 and the lever 1034 are designed so that when the operator installs the atomizing nozzle 6, he first moves the lever 1034 to make the lever 1034 drive the switching piece 7 to rotate. The rotation of the switching piece 7 drives the switching block 1023 to rotate and squeeze the switching spring 1022, and after the upper end of the switching block 1023 is aligned with the downward groove 10241, the installation block 1031 is aligned with the installation groove 10346, so that when the atomizing nozzle 6 is installed, the switching block 1023 will not push the lifting block 1026 upward, so that the rotating shaft 5 remains locked when the atomizing nozzle 6 is installed, which is convenient for the operator to install the nozzle for plant protection.

[0049] After the atomizing nozzle 6 is installed, the operator pulls up the lifting baffle 1027, so that the lifting baffle 1027 drives the lifting block 1026 to move upward, and the lifting block 1026 drives the lifting ring 1025 and the switching dial 1024 to move upward, so that the switching block 1023 is pulled out of the downward moving groove 10241. In the process of the switching block 1023 being pulled out of the downward moving groove 10241, although the shaft 5 is unlocked first, the switching spring 1022 has a small elastic force and is not enough to reset and drive the atomizing nozzle 6 and the shaft 5 to rotate relative to the switching block 1023, and the switching dial 1024 and the lifting ring 1025 are locked. The friction force is greater than the elastic force of the switching spring 1022. Therefore, the switching spring 1022 can be reset only when the switching block 1023 is completely pulled out of the downward moving groove 10241 and moves to the lower end of the switching dial 1024, so that the switching block 1023 drives the switching piece 7 to rotate relative to the atomizing nozzle 6. The switching block 1023 is away from the end of the switching spring 1022 and fits the inner wall of the atomizing nozzle 6. The one-way wheel 10231 on the switching block 1023 rotates to fit the lower end of the switching dial 1024, and the switching piece extends out of the nozzle groove 61. The water tank 71 is not connected with the atomizing groove 62. At this time, the switching The one-way wheel 10231 on the block 1023 presses the switching turntable 1024 at the lower end of the lifting block 1026. When the lifting block 1026 moves upward until the lower end is pressed, the lifting block 1026 drives the gear retaining ring 1029 and the transmission gear 3 to move upward relative to the rotating shaft 5. The upward movement of the transmission gear 3 drives the connecting shaft 81 to move upward to squeeze the transmission spring 83, and disengages the transmission gear 3 from the meshing with the connecting gear 1011. At the same time, the upward movement of the transmission gear 3 drives the locking guide groove 91 and the gear block 86 to move upward. During the upward movement of the locking guide groove 91, the transmission block 87 will move toward the center of the rotating shaft 5 along the locking guide groove 91, and drive the locking baffle 92 to squeeze the locking spring 94, so that the locking block 95 is pulled out of the locking slot 96, so that the rotating shaft 5 can rotate in the nozzle 4, and the transmission block 87 moves toward the center of the rotating shaft 5 along the locking guide groove 91, and finally moves to the position where it cooperates with the gear block 86, so that when the driving motor 41 drives the motor shaft 2 to rotate, the motor shaft 2 drives the connecting shaft 81 and the transmission gear 3 to rotate, and the connecting gear 1011 can drive the rotating shaft 5 to rotate together with the cooperation of the transmission block 87 and the gear block 86, so that the rotating shaft 5 drives the atomizing nozzle 6 to rotate.

[0050] When it is necessary to perform a large-area atomization spraying on the leaves of plant crops, the operator only needs to operate the driving motor 41 to make the motor shaft 2 rotate forward, and the forward rotation of the motor shaft 2 drives the connecting shaft 81, the transmission gear 3, the rotating shaft 5, and the atomizing nozzle 6 to rotate forward. When the atomizing nozzle 6 rotates forward rapidly, the one-way wheel 10231 at the upper end of the switching block 1023 fits with the lower end of the switching turntable 1024. When the one-way wheel 10231 rotates forward with the atomizing nozzle 6, it cannot roll. At this time, the sliding friction between the one-way wheel 10231 and the lower end of the switching turntable 1024 is greater than the rotational friction between the switching turntable 1024 and the lifting ring 1025. The one-way wheel 10231 can drive the switching turntable 1024 to rotate, thereby causing the switching turntable 1024 to rotate. 24. The switching piece 7 and the atomizing nozzle 6 can keep rotating synchronously. In this state, the switching spring 1022 is not squeezed, the water trough 71 on the switching piece 7 is not connected with the atomizing groove 62, and the switching piece 7 extends out of the nozzle groove 61. During the rotation of the atomizing nozzle 6 and the switching piece 7, water is injected into the water trough 1042 in the nozzle 4 from the water inlet pipe 1041, and the liquid in the water trough 1042 flows out of the nozzle 4 from the water trough 1042 and hits the atomizing nozzle 6 and the switching piece 7. Under the rotation of the atomizing nozzle 6, the liquid is thrown onto the atomizing wall 1043, and the atomized liquid is sprayed downward along the gap between the atomizing wall 1043 and the atomizing nozzle 6, thereby performing atomization spraying on the crops below over a large area.

[0051] When liquid needs to be sprayed on branches of fruit trees, the nozzle needs to have a good angle and spray force to ensure that the liquid passes through the leaves and is sprayed on the branches. The operator only needs to control the drive motor 41 to reverse, so that the drive motor 41 drives the rotating shaft 5 and the atomizing nozzle 6 to reverse quickly. When the atomizing nozzle 6 reverses quickly, under the action of inertia and the friction between the one-way wheel 10231 on the switching block 1023 and the switching turntable 1024, the switching piece 7 first rotates relative to the atomizing nozzle 6, so that the switching block 1023 squeezes the switching spring 1022. When the switch spring 1022 is compressed to the limit state, the switch piece 7 is retracted into the nozzle groove 61, the water channel 71 and the atomizing groove 62 are connected, and then the atomizing nozzle 6 continues to drive the switch block 1023 and the one-way wheel 10231 to reverse together. Since the one-way wheel 10231 can roll when reversing, the rolling friction between the one-way wheel 10231 and the switch turntable 1024 is less than the rotational friction between the switch turntable 1024 and the lifting ring 1025. Therefore, the one-way wheel 10231 can finally rotate to the switch turntable 1024. The transmission spring 83 at the lower end of the motor shaft 2 is reset, driving the connecting shaft 81, the transmission gear 3, the gear retaining ring 1029, the lifting block 1026, the lifting ring 1025 and the switching turntable 1024 to move downward, so that the switching block 1023 and the one-way wheel 10231 are inserted into the downward groove 10241. In the process of the connecting shaft 81 and the transmission gear 3 moving downward, the locking guide groove 91 and the gear retaining block 86 are driven to move downward, and finally, the gear retaining ring 1029 is disengaged from the cooperation with the transmission block 87. , so that the rotation of the motor shaft 2 cannot drive the rotating shaft 5 to rotate, and at the same time, the transmission block 87 extends out of the rotating shaft 5 along the locking guide groove 91, and then the locking block 95 is inserted into the locking slot 96, so that the rotating shaft 5 cannot rotate, so that when the atomizing component 104 sprays water, the atomizing nozzle 6 cannot rotate, and the atomizing groove 62 is connected with the water channel 71, to ensure that part of the sprayed liquid is atomized and dispersed by the impact of the atomizing nozzle 6, and part is directly ejected along the atomizing groove 62 and the water channel 71, to ensure that the sprayed liquid can be smoothly sprayed onto farther and deeper branches.

[0052] In order to enable the plant protection nozzle to have a better spray angle when spraying liquid on deeper branches and trunks, and to further ensure that the liquid can be sprayed smoothly to the branches and trunks, after the transmission gear 3 moves down, the rotating shaft 5 is locked and cannot rotate with the motor shaft 2, the transmission gear 3 is engaged with the connecting gear 1011, and the operator can control the drive motor 41 to make the motor shaft 2 rotate forward or reverse. When the motor shaft 2 rotates, the motor shaft 2 can drive the transmission gear 3 to rotate, and the rotation of the transmission gear 3 drives the connecting gear 1011 to rotate, and the rotation of the connecting gear 1011 drives the internal adjustment gear 1013 rotates. When the inner adjusting gear 1013 rotates, since the UAV bracket 1 is fixed and the outer adjusting gear 1014 is fixed on the UAV bracket 1, the rotation of the inner adjusting gear 1013 can drive the nozzle 4, the atomizing nozzle 6, etc. to rotate around the rotating shaft 10155 on the UAV bracket 1 with the cooperation of the outer adjusting gear 1014, so that the plant protection nozzle can have a longer spraying distance when spraying liquid on the branches and trunks, and can adjust the spraying angle, so that the plant protection nozzle can better spray the liquid on the branches and trunks.

[0053] When it is necessary to re-carry out large-area atomization spraying on the vegetation, the operator only needs to pull up the lifting baffle 1027 again to make the switching piece 7 in the atomizing nozzle 6 extend out of the nozzle slot 61 again, and the rotating shaft 5 can rotate with the motor shaft 2 again. When the atomizing nozzle 6 of the plant protection nozzle is installed, the rotating shaft 5 is locked, which makes it easy to install the atomizing nozzle 6 and enables the plant protection nozzle to achieve large-area atomization spraying. At the same time, the spray angle can be adjusted and long-distance spraying can be carried out, which makes the plant protection nozzle have a wider range of use and is easy to install and disassemble.

[0054] Example 2

[0055] A method for working a plant protection nozzle is provided, using the plant protection nozzle and operating according to the following steps:

[0056] By rotating the lever 1034, the switching piece 7 is driven to rotate into the nozzle slot 61, so that when the atomizing nozzle 6 is installed to the lower end of the rotating shaft 5, the switching block 1023 can be inserted into the downward moving slot 10241, and the switching block 1023 is pulled out of the downward moving slot 10241 by pulling the lifting baffle 1027, so that the switching piece 7 is rotated out of the nozzle slot 61, so that when the driving motor 41 rotates forward, it can drive the atomizing nozzle 6 to spray atomized liquid, and by controlling the driving motor 41 to reverse, the switching block 1023 is inserted into the downward moving slot 10241, and the transmission gear 3 is moved downward to lock the rotating shaft 5 to ensure that when the atomizing nozzle 6 sprays a long-range water column, the rotating shaft 5 will not rotate, and by moving the transmission gear 3 downward to mesh with the connecting gear 1011, the driving motor 41 can be driven to adjust the angle of the atomizing nozzle 6 when it rotates, and by stopping the driving motor 41, the atomizing nozzle 6 maintains the spraying angle, and the water column with a longer spray distance is sprayed.

[0057] By arranging a locking component 9 in the nozzle 4, the rotating shaft 5 is locked when the atomizing nozzle 6 of the plant protection nozzle is installed, so that the atomizing nozzle 6 is easy to install. A switching piece 7 is set in the atomizing nozzle 6, so that the atomizing nozzle 6 is automatically unlocked after installation and meshes with the motor shaft 2, so that when the driving motor 41 rotates forward, the plant protection nozzle can achieve large-area atomization spraying, improve the spraying area and spraying efficiency, and the driving motor 41 automatically switches the spraying mode of the atomizing nozzle 6 after reversing, so that the plant protection nozzle can perform long-distance spraying without replacing the nozzle. At the same time, the spray angle can also be adjusted, so that when the plant protection nozzle is sprayed over a long distance, it has a better spray angle and can accurately spray the liquid onto the vegetation.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A nozzle for plant protection, mounted on a drone bracket (1), characterized in that: The invention comprises a motor shaft (2), a nozzle (4), a transmission component (8), a locking component (9), an adjustment component (101), a reset component (102), a mounting component (103), an atomizing component (104), and a transmission gear (3), a rotating shaft (5), an atomizing nozzle (6) and a switching piece (7) which are sequentially connected to the lower end of the motor shaft (2); the nozzle (4) is rotatably connected to the drone bracket (1), and the motor shaft (2) is arranged in the nozzle (4); When the atomizing nozzle (6) is not mounted on the rotating shaft (5), the transmission component (8) is used to maintain the transmission gear (3) being pushed downward so that the transmission gear (3) is separated from the rotating shaft (5); the locking component (9) fixes the rotating shaft (5) when the transmission gear (3) is separated from the rotating shaft (5); and the mounting component (103) retracts the switching piece (7) into the nozzle slot (61) and fixes the atomizing nozzle (6) to the rotating shaft (5) after the rotating shaft (5) is fixed; After the atomizing nozzle (6) is mounted on the rotating shaft (5), when the motor shaft (2) rotates, the adjusting component (101) cooperates with the transmission gear (3) to drive the nozzle (4) to rotate to a preset angle, and after the nozzle (4) rotates to the preset angle, the atomizing component (104) cooperates with the switching piece (7) and the atomizing nozzle (6) to spray a water column; When it is necessary to spray water mist, the reset component (102) drives the transmission gear (3) to move upward to mesh with the rotating shaft (5), and cooperates with the mounting component (103) to rotate the switching piece (7) out of the nozzle slot (61), so that when the rotating shaft (5) rotates in one direction, the atomizing component (104) cooperates with the atomizing nozzle (6) and the switching piece (7) to spray water mist; When it is necessary to spray the water column again, the rotating shaft (5) is rotated in another direction, so that the transmission component (8) pushes the transmission gear (3) downward again to separate from the rotating shaft (5), and the locking component (9) fixes the rotating shaft (5) again. After the adjusting component (101) cooperates with the transmission gear (8) to adjust the angle of the nozzle (4), the atomizing component (104) cooperates with the switching piece (7) and the atomizing nozzle (6) to spray the water column.

2. The plant protection nozzle according to claim 1, characterized in that: The transmission component (8) comprises a connecting shaft (81), an ascending groove (82), a transmission spring (83), a wedge block (84), a wedge groove (85), a gear block (86) and a transmission block (87); a driving motor (41) is arranged in the nozzle (4); the driving motor (41) is connected to the upper end of the motor shaft (2); the ascending groove (82) is provided at the lower end of the motor shaft (2); the connecting shaft (81) is arranged at the upper end of the transmission gear (3); the connecting shaft (81) is slidably connected to the ascending groove (82); the wedge block (84) is arranged in the ascending groove ( 82), the wedge groove (85) is provided on the upper side of the connecting shaft (81), the wedge block (84) cooperates with the wedge groove (85), the transmission spring (83) is sleeved on the outer side of the connecting shaft (81), the two ends of the transmission spring (83) are respectively connected to the upper end of the transmission gear (3) and the lower end of the motor shaft (2), a connecting groove (811) is provided in the connecting shaft (81), the gear block (86) is provided in the connecting groove (811), the transmission block (87) is provided on the rotating shaft (5), and the transmission block (87) cooperates with the gear block (86).

3. The plant protection nozzle according to claim 2, characterized in that: The locking component (9) comprises a locking guide groove (91), a locking baffle (92), a locking groove (93), a locking spring (94), a locking block (95) and a locking slot (96); the locking guide groove (91) is arranged at the upper end of the gear block (86) in the connecting groove (811); the locking groove (93) is arranged in the rotating shaft (5); the locking baffle (92) is slidably connected in the locking groove (93); the upper end of the locking baffle (92) is away from the center of the rotating shaft (5) and is connected to the transmission block (87). The two ends of the locking spring (94) are respectively connected to a side of the locking baffle (92) close to the center of the rotating shaft (5) and the inner wall of the rotating shaft (5); the locking block (95) is fixedly connected to a side of the lower end of the locking baffle (92) close to the transmission block (87); the locking slot (96) is arranged in the nozzle (4); the locking guide groove (91) cooperates with an end of the transmission block (87) away from the locking baffle (92); and the end of the locking block (95) away from the locking baffle (92) cooperates with the locking slot (96).

4. The plant protection nozzle according to claim 3, characterized in that: The mounting component (103) comprises a mounting block (1031), a threaded groove (1032), a bolt (1033), a lever (1034), a lever groove (10345) and a mounting groove (10346); the mounting block (1031) is fixedly connected to the lower end of the rotating shaft (5); the mounting groove (10346) is provided at the upper end of the atomizing nozzle (6); the mounting block (1031) is connected to the mounting groove (10346); the threaded groove (1032) is provided at the bottom of the mounting block (1031); the bolt (1033) is provided in the atomizing nozzle (6); The bolt (1033) is detachably connected to the thread groove (1032); the shifting groove (10345) is provided at the lower end of the atomizing nozzle (6); the shifting groove (10345) is communicated with the nozzle groove (61); the shifting rod (1034) is provided at the lower end of the switching plate (7); the shifting rod (1034) extends out of the lower end of the atomizing nozzle (6) through the shifting groove (10345); the atomizing nozzle (6) is provided with a plurality of atomizing grooves (62); the switching plate (7) is provided with a plurality of water channels (71); the atomizing grooves (62) cooperate with the water channels (71).

5. The plant protection nozzle according to claim 4, characterized in that: The lower end of the switching plate (7) is provided with a retreat groove (72), the groove of the shifting rod (1034) is slidably connected in the retreat groove (72), the upper end of the shifting rod (1034) is provided with a retreat spring (73), the end of the retreat spring (73) away from the shifting rod (1034) is connected to the inner wall of the switching plate (7), and the lower end of the shifting rod (1034) is matched with the bolt (1033).

6. The plant protection nozzle according to claim 5, characterized in that: The reset component (102) comprises a switching groove (1021), a switching spring (1022), a switching block (1023), a switching rotating disk (1024), a lifting ring (1025), a lifting block (1026), a lifting baffle (1027), a lifting groove (1028) and a gear baffle ring (1029); the switching groove (1021) is arranged at the upper end of the atomizing nozzle (6); the switching block (1023) is arranged in the switching groove (1021); the lower end of the switching block (1023) is connected to the switching plate (7); the switching spring (1022) is connected to the side of the switching block (1023); the end of the switching spring (1022) away from the switching block (1023) abuts against the inner wall of the atomizing nozzle (6); the lifting groove (1028) is arranged at the lower end of the nozzle (4); the lifting block (1026) is slidably connected to the lifting groove (1028) 028), the lifting ring (1025) is fixedly connected to the lower end of the lifting block (1026), the switching turntable (1024) is rotatably connected to the lower end of the lifting ring (1025), the lower end of the switching turntable (1024) is provided with a downward moving groove (10241), the upper end of the switching block (1023) is provided with a one-way wheel (10231), and the one-way wheel (10231) is attached to the lower end of the switching turntable (1024). The downward moving groove (10241) cooperates with the upper end of the switching block (1023), the gear retaining ring (1029) is arranged at the lower end of the transmission gear (3), the lifting baffle (1027) is arranged on the side of the lifting block (1026), and the lifting baffle (1027) extends out of the nozzle (4) away from the lifting block (1026), and the upper end of the lifting block (1026) cooperates with the lower end of the gear retaining ring (1029).

7. The plant protection nozzle according to claim 6, characterized in that: The atomizing component (104) comprises a water inlet pipe (1041), a water spraying groove (1042), an atomizing wall (1043) and a sealing unit (1044); the water inlet pipe (1041) is connected to the side of the nozzle (4); the water spraying groove (1042) is arranged in the nozzle (4); the water inlet pipe (1041) is connected to the water spraying groove (1042); the atomizing wall (1043) is arranged at the lower end of the nozzle (4); and the sealing unit (1044) is arranged on the outside of the rotating shaft (5).

8. The plant protection nozzle according to claim 7, characterized in that: The sealing unit (1044) comprises a first sealing retaining ring (10441) and a second sealing retaining ring (10442), wherein the first sealing retaining ring (10441) is arranged at the lower end of the nozzle (4), and the second sealing retaining ring (10442) is arranged at the upper end of the atomizing nozzle (6), and the first sealing retaining ring (10441) and the second sealing retaining ring (10442) are fitted together inside and outside.

9. The plant protection nozzle according to claim 7, characterized in that: The adjusting component (101) comprises a connecting gear (1011), a gear shaft (1012), an inner adjusting gear (1013), an outer adjusting gear (1014), a rotating shaft (1015)(5) and a rotating groove (1016); the connecting gear (1011) is arranged on the side of the transmission gear (3); the connecting gear (1011) cooperates with the transmission gear (3); the gear shaft (1012) is rotatably connected to the side wall of the nozzle (4); the connecting gear (1011) is fixedly connected to the gear shaft (1012) on the side away from the transmission gear (3); The inner adjustment gear (1013) is connected to the end of the gear shaft (1012) away from the transmission gear (3); the outer adjustment gear (1014) is arranged on the UAV bracket (1); the outer adjustment gear (1014) is meshed with the inner adjustment gear (1013); the rotating shaft (1015)(5) is arranged on the UAV bracket (1); the rotating shaft (1015)(5) is concentric with the inner adjustment gear (1013); the rotating groove (1016) is provided on both sides of the nozzle (4); and the rotating shaft (1015)(5) is rotatably connected to the nozzle (4).

10. A method for working a nozzle for plant protection, characterized in that: The plant protection nozzle comprises any one of claims 1 to 9, and the following operating steps: The switching piece (7) is driven to rotate into the nozzle slot (61) by rotating the lever (1034), so that when the atomizing nozzle (6) is installed on the lower end of the rotating shaft (5), the switching block (1023) can be inserted into the downward moving slot (10241); The switch block (1023) is pulled out of the downward moving groove (10241) by pulling the lifting baffle (1027), so that the switch piece (7) is rotated out of the nozzle groove (61), and when the driving motor (41) rotates in the forward direction, the atomizing nozzle (6) can be driven to spray atomized liquid; By controlling the driving motor (41) to rotate in reverse, the switching block (1023) is inserted into the downward moving groove (10241), so that the transmission gear (3) moves downward to lock the rotating shaft (5), thereby ensuring that the rotating shaft (5) does not rotate when the atomizing nozzle (6) sprays a long-range water column; By moving the transmission gear (3) downward to mesh with the connecting gear (1011), the driving motor (41) can be rotated to drive the atomizing nozzle (6) to adjust its angle; By stopping the driving motor (41), the atomizing nozzle (6) maintains the spraying angle, and the water column is sprayed at a longer distance.

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