A planting and maintenance nozzle and its working method

Abstract

This invention relates to the field of agricultural drone technology, specifically to an agricultural nozzle and its working method, comprising a drone support, a motor shaft, a transmission gear, a spray pipe, a rotating shaft, an atomizing nozzle, a switching plate, a transmission component, a locking component, an adjusting component, a resetting component, an installation component, and an atomizing component. The transmission component pushes the transmission gear downward to disengage the transmission gear from the rotating shaft. The locking component locks the rotating shaft when the transmission gear is disengaged. The installation component retracts the switching plate into the nozzle slot and fixes the atomizing nozzle to the rotating shaft when the rotating shaft is fixed. The resetting component extends the switching plate out of the nozzle slot after the atomizing nozzle is fixed to the rotating shaft. When the motor shaft rotates forward, the atomizing component works with the switching plate and the atomizing nozzle to spray water mist. When the motor shaft rotates in reverse, the adjusting component works with the locking component to lock the rotating shaft and controls the spray pipe to rotate to a suitable angle before working with the atomizing component to spray a water column.

Description

Technical Field

[0001] This invention relates to the field of agricultural drone technology, specifically to an agricultural nozzle and its working method. Background Technology

[0002] In recent years, with the development needs of agricultural modernization, agricultural and forestry plant protection and pesticide application technologies have developed rapidly. Commonly used nozzles in plant protection and pesticide application devices are mainly divided into pressure nozzles and centrifugal nozzles. Traditional pressure nozzles produce a wider droplet spectrum and a longer spray distance, making them suitable for spraying through leaves and plant branches. Centrifugal nozzles, on the other hand, produce a more uniform atomization and a wider spray area, making them suitable for large-area spraying of leaves. Currently, pesticide nozzles used on plant protection drones have a single spraying mode, requiring different nozzles to be used for different plant growth habits, resulting in poor adaptability.

[0003] In the prior art, such as the pesticide sprayer for plant protection drones with patent number CN110973096B, vertical spraying is performed through the spray nozzle on the spray frame. When the drive mechanism is working, the spray nozzle is closed, and the pesticide is sprayed in an inclined direction through the connecting pipe. The spraying mode is automatically switched, and different spraying methods can be selected according to the growth habits of different plants.

[0004] Existing technologies offer nozzles that can switch between different spray angles and flow rates. However, when dealing with dense vegetation requiring large-area, uniform spraying for protection, existing nozzles offer only a single spraying method. Simply adjusting the spray angle and flow rate is insufficient for achieving uniform spraying. Centrifugal nozzles are still needed to meet the requirements for larger-scale, more uniform spraying. However, centrifugal nozzles are generally driven by a rotating shaft. When a nozzle needs to be replaced, the shaft rotates synchronously with the nozzle installation. Personnel need to use their hands or tools to hold the shaft in place and then use bolts to secure the nozzle to the lower end of the shaft. This makes it inconvenient to install and replace nozzles with different functions. Furthermore, pesticide residues may remain on the nozzles during replacement, making the process both inconvenient and potentially contaminating the operator's hands.

[0005] Therefore, a plant protection nozzle and its working method are proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a plant protection nozzle and its working method, which addresses the problems of existing nozzles having a single spraying mode and inconvenience in disassembling and replacing different nozzles.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A plant protection nozzle includes a drone bracket, a motor shaft, a transmission gear, a spray pipe, a rotating shaft, an atomizing nozzle, a switching plate, a transmission component, a locking component, an adjusting component, a resetting component, a mounting component, and an atomizing component. The spray pipe is rotatably connected to the drone bracket. The motor shaft is housed within the spray pipe. 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 on the lower end of the rotating shaft and has a nozzle groove. The switching plate is housed within the nozzle groove. The transmission component, located at the lower end of the motor shaft, pushes the transmission gear downwards to disengage it from the rotating shaft. The locking component is located within the rotating shaft and engages in transmission... When the gear disengages from the shaft, the shaft is locked. The mounting component is located at the lower end of the atomizing nozzle. When the shaft is fixed, it retracts the switching plate into the nozzle slot and fixes the atomizing nozzle to the shaft. The resetting component is located on the side of the shaft. After the atomizing nozzle is fixed to the shaft, it extends the switching plate out of the nozzle slot and pushes the transmission gear upward to unlock the shaft. The shaft then engages with the transmission gear. The atomizing component is located inside the nozzle. When the motor shaft rotates forward, it works with the switching plate and the atomizing nozzle to spray a large area of ​​water mist. The adjusting component is located on the side wall of the nozzle. When the motor shaft rotates in reverse, it works with the locking component to lock the shaft and controls the nozzle to rotate to a suitable angle before working with the atomizing component to spray a long-range water jet.

[0009] Preferably, the transmission component includes a connecting shaft, a rising groove, a transmission spring, a wedge, a wedge groove, a gear stop, and a transmission stop. A drive motor is installed inside the nozzle and is connected to the upper end of a motor shaft. The rising groove is located at the lower end of the motor shaft. The connecting shaft is located at the upper end of the transmission gear and is slidably connected to the rising groove. The wedge is located inside the rising groove, and the wedge groove is located on the upper side of the connecting shaft. The wedge and the wedge groove cooperate. The transmission spring is sleeved on the outside of the connecting shaft, and its two ends are connected to the upper end of the transmission gear and the lower end of the motor shaft, respectively. A connecting groove is provided inside the connecting shaft, and the gear stop is located inside the connecting groove. The transmission stop is located on the rotating shaft and cooperates with the gear stop.

[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 disposed on the upper end of the gear block in the connecting groove. The locking groove is formed inside the rotating shaft. The locking baffle is slidably connected in the locking groove. The upper end of the locking baffle, away from the center of the rotating shaft, is connected to the transmission block. The two ends of the locking spring are respectively connected to the side of the locking baffle near 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, near the transmission block. The locking slot is disposed inside the nozzle. The locking guide groove cooperates with the end of the transmission block away from the locking baffle. The end of the locking block away from the locking baffle cooperates with the locking slot.

[0011] Preferably, the mounting components include a mounting block, a threaded groove, a bolt, a lever, a slot, and a mounting slot. The mounting block is fixedly connected to the lower end of the rotating shaft. The mounting slot is located at the upper end of the atomizing nozzle, and the mounting block is connected to the mounting slot. The threaded groove is located at the bottom of the mounting block. The bolt is located at the center of the atomizing nozzle and is detachably connected to the threaded groove. The slot is located at the lower end of the atomizing nozzle and communicates with the nozzle slot. The lever is located at the lower end of the switching plate and extends out of the lower end of the atomizing nozzle through the slot. The atomizing nozzle has multiple atomizing slots, and the switching plate has multiple water-flowing slots, with the atomizing slots cooperating with the water-flowing slots.

[0012] Preferably, the lower end of the switching plate is provided with a relief groove, the lever groove is slidably connected in the relief groove, the upper end of the lever is provided with a relief spring, the end of the relief spring away from the lever is connected to the inner wall of the switching plate, and the lower end of the lever is engaged 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 located at the upper end of the atomizing nozzle. The switching block is disposed within the switching groove, and its lower end is connected to a switching plate. The switching spring is connected to the side of the switching block, and the end of the switching spring away from the switching block abuts against the inner wall of the atomizing nozzle. The lifting groove is located at the lower end of the nozzle, and the lifting block is slidably connected within 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, and a downward sliding groove is provided at the lower end of the switching turntable. A one-way wheel is provided at the upper end of the switching block, and the one-way wheel fits against the lower end of the switching turntable. The downward sliding groove cooperates with the upper end of the switching block. The gear retaining ring is located at the lower end of the transmission gear. The lifting baffle is located on the side of the lifting block, and the side of the lifting baffle away from the lifting block extends out of the nozzle. 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 groove, an atomizing wall, and a sealing unit. The water inlet pipe is connected to the side of the spray pipe, the water spray groove is opened inside the spray pipe, the water inlet pipe is connected to the water spray groove, the atomizing wall is located at the lower end of the spray pipe, and the sealing unit is located on the outside of the rotating shaft.

[0015] Preferably, the sealing unit includes a first sealing ring and a second sealing ring, the first sealing ring being disposed at the lower end of the nozzle, and the second sealing ring being disposed at the upper end of the atomizing nozzle, wherein the first sealing ring and the second sealing ring are fitted together internally and externally.

[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 disposed on the side of the transmission gear and engages with the transmission gear. The gear shaft is rotatably connected to the side wall of the nozzle. The side of the connecting gear away from the transmission gear is fixedly connected to the gear shaft. The inner adjusting gear is connected to the end of the gear shaft away from the transmission gear. The outer adjusting gear is disposed on the drone support and meshes with the inner adjusting gear. The rotating shaft is disposed on the drone support and is concentric with the inner adjusting gear. The rotating groove is formed 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, including the plant protection nozzle described above, and the following operating steps:

[0018] By rotating the lever, the switching plate is driven into the nozzle slot, so that when the atomizing nozzle is installed at the lower end of the rotating shaft, the switching block can be inserted into the lower slot;

[0019] By pulling the lifting baffle, the switching block is pulled out of the lower slot, causing the switching plate to rotate out of the nozzle slot. When the drive motor rotates in the forward direction, it can drive the atomizing nozzle to spray out atomized liquid.

[0020] By reversing the drive motor, the switching block is inserted into the lower slot, causing the transmission gear to move down and lock the shaft, ensuring that the shaft will not rotate when the atomizing nozzle sprays a long-range water column.

[0021] By moving the transmission gear down to mesh with the connecting gear, the drive motor can rotate and drive the atomizing nozzle to adjust its angle.

[0022] By stopping the drive motor, the atomizing nozzle maintains the spray angle, allowing for the spraying of a water jet over a longer distance.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] This invention features a locking component inside the nozzle to lock the shaft during installation of the atomizing nozzle, facilitating easy installation. A switching plate inside the nozzle automatically unlocks and engages with the motor shaft after installation. When the drive motor rotates forward, the nozzle can achieve large-area atomization spraying, increasing the spraying area and efficiency. Reversing the motor automatically switches the spraying mode, enabling long-distance spraying without needing to replace the nozzle. The spray angle can also be adjusted for more accurate liquid delivery to vegetation during long-distance spraying. Attached Figure Description

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

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

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

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

[0029] Figure 5 This is an exploded view of the mounting component of the present invention;

[0030] Figure 6 This is an exploded view of the reset component of the present invention;

[0031] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B;

[0032] Figure 8 For the present invention Figure 6 Enlarged structural diagram at point C;

[0033] Figure 9 This is a schematic cross-sectional view of the adjusting component of the present invention;

[0034] Figure 10 This is a schematic cross-sectional view of the atomizing component of the present invention.

[0035] In the diagram: 1. Drone 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 plate; 71. Water channel; 72. Retreat slot; 73. Retreat spring; 8. Transmission component; 9. Locking component; 101. Adjustment component; 102. Reset component; 103. Mounting component; 104. Atomizing component; 81. Connecting shaft; 811. Connecting slot; 82. Rising slot; 83. Transmission spring; 84. Wedge block; 85. Wedge groove; 86. Gear stop; 87. Transmission stop; 91. Locking guide groove; 92. Locking baffle; 93. Locking groove; 94. Locking spring; 95. Locking block; 96. Locking slot; 1031. Mounting block; 1032. Threaded groove ; 1033, Bolt; 1034, Lever; 10345, Slot; 10346, Mounting Slot; 1021, Switching Slot; 1022, Switching Spring; 1023, Switching Block; 10231, One-Way Wheel; 1024, Switching Turntable; 10241, Lowering 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, Internal Adjusting Gear; 1014, External Adjusting Gear; 1017, Rotating Shaft; 1016, Rotating Slot. Detailed Implementation

[0036] To ensure a clear and complete description of the technical solutions in the embodiments of the present invention, and to make the features and advantages more apparent and understandable, the specific implementation methods of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Example 1

[0037] Please see Figures 1 to 10This invention provides a plant protection nozzle, comprising a drone support 1, a spray pipe 4, a motor shaft 2, a transmission gear 3, a rotating shaft 5, an atomizing nozzle 6, a switching plate 7, a transmission component 8, a locking component 9, a mounting component 103, a reset component 102, and an adjustment component 101. The spray pipe 4 is rotatably connected to the drone support 1. The motor shaft 2 is disposed inside the spray pipe 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 mounted on the lower end of the rotating shaft 5. The atomizing nozzle 6 has a nozzle groove 61. The switching plate 7 is disposed in the nozzle groove 61. The transmission component 8 is disposed 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. The locking component... Part 9 is installed inside the rotating shaft 5. When the transmission gear 3 disengages from the rotating shaft 5, it locks the rotating shaft 5. Mounting part 103 is installed at the lower end of the atomizing nozzle 6. When the rotating shaft 5 is fixed, it retracts the switching piece 7 into the nozzle slot 61 and fixes the atomizing nozzle 6 to the rotating shaft 5. Reset part 102 is installed on the side of the rotating shaft 5. After the atomizing nozzle 6 is fixed to the rotating shaft 5, it extends the switching piece 7 out of the nozzle slot 61 and pushes the transmission gear 3 upward to unlock the rotating shaft 5, so that the motor shaft 2 drives the atomizing nozzle 6 to rotate when rotating forward. Adjusting part 101 is installed on the side wall of the nozzle 4. When the motor shaft 2 rotates in reverse, it cooperates with the transmission part 8 to move the transmission gear 3 downward. After the transmission gear 3 moves downward, it cooperates with the drone bracket 1 to drive the nozzle 4 to rotate and adjust the angle.

[0038] Please see 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 stop 86, and a transmission stop 87. A drive motor 41 is installed inside the nozzle 4, connected to the upper end of the motor shaft 2. The ascending groove 82 is located at the lower end of the motor shaft 2. The connecting shaft 81 is located at the upper end of the transmission gear 3 and is slidably connected to the ascending groove 82. The wedge block 84 is located within the ascending groove 82, and the wedge groove 85 is located on the upper side of the connecting shaft 81. The wedge block 84 and the wedge groove 85 are slidably connected, with the sliding direction being up and down. When the drive motor 41 drives the motor shaft 2 to rotate, the motor shaft 2, with the cooperation of the wedge block 84 and the wedge groove 85, drives the connecting shaft 81 and its lower end of the transmission gear 3 to rotate. When the transmission gear 3 moves up and down, the wedge block 84 can move along the wedge groove 85. The transmission spring 83 is sleeved on the outside of the connecting shaft 81 and slides up and down. The two ends of the transmission spring 83 are connected to the upper end of the transmission gear 3 and the lower end of the motor shaft 2, respectively. The connecting shaft 81 is provided with a connecting groove 811. The gear stop 86 is set in the connecting groove 811 and the transmission stop 87 is set on the rotating shaft 5. The transmission stop 87 and the gear stop 86 cooperate. The cooperation here means that when the transmission gear 3 moves upward, the transmission gear 3 can move the gear stop 86 upward to a horizontal position with the transmission stop 87 on the rotating shaft 5. When the drive motor 41 rotates, the motor shaft 2 can drive the connecting shaft 81 and the transmission gear 3 to rotate. The rotation of the connecting shaft 81 drives the gear stop 86 to rotate. When the gear stop 86 rotates, the side of the gear stop 86 is in contact with the side of the transmission stop 87, and drives the transmission stop 87 and the rotating shaft 5 to rotate.

[0039] Please see Figures 3 to 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 located on the upper end of the gear stop 86 inside the connecting groove 811. The locking groove 93 is located inside the rotating shaft 5. The locking baffle 92 is slidably connected to the locking groove 93. The upper end of the locking baffle 92, away from the center of the rotating shaft 5, is connected to the transmission stop 87. The two ends of the locking spring 94 are respectively connected to the side of the locking baffle 92 near 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 near the transmission stop 87. The locking slot 96 is located inside the nozzle 4. The inner diameter of the locking guide groove 91 increases from bottom to top. The locking guide groove 91 engages with the end of the transmission stop 87 away from the locking baffle 92. This engagement means that when the transmission gear 3 moves up and down... At this time, the transmission gear 3 drives the locking guide groove 91 to move up and down. During this process, under the action of the locking spring 94 and the locking baffle 92, the transmission stop 87 is always in contact with the locking guide groove 91 at the end away from the locking baffle 92. This causes the transmission stop 87 to move towards the center of the rotating shaft 5 when the locking guide groove 91 moves up, and to move away from the center of the rotating shaft 5 when the locking guide groove 91 moves down. The locking block 95 at the end away from the locking baffle 92 engages with the locking slot 96. This engagement means that when the transmission stop 87 moves 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 engages with the locking slot 96 on the nozzle 4, preventing the rotating shaft 5 from rotating relative to the nozzle 4. Conversely, when the transmission stop 87 moves away from the center of the rotating shaft 5, the locking block 95 extends out of the rotating shaft 5 and engages with the locking slot 96 on the nozzle 4, preventing the rotating shaft 5 from rotating relative to the nozzle 4.

[0040] Please see 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 lever 10345, and a lever 1034. The mounting block 1031 is fixedly connected to the lower end of the rotating shaft 5. The mounting groove 10346 is formed 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 located at the bottom of the mounting block 1031. The bolt 1033 is located in the atomizing nozzle 6. The bolt 1033 is detachably connected to the threaded groove 1032. The slot 10345 is opened at the lower end of the atomizing nozzle 6 and communicates with the nozzle groove 61. The lever 1034 is set at the lower end of the switching plate 7 and extends out of the lower end of the atomizing nozzle 6 through the slot 10345. The atomizing nozzle 6 has multiple atomizing grooves 62, which extend longitudinally through the upper and lower sides of the atomizing nozzle 6. The switching plate 7 has multiple water channels 71, the number of which is the same as the number of atomizing grooves 62. The water channels 71 extend longitudinally through the upper and lower sides of the switching plate 7.

[0041] Please see Figures 5 to 7Specifically, the outer mass of the switching plate 7 is relatively higher than that of the center. In order to provide more inertial force during rotation, a relief groove 72 is provided at the lower end of the switching plate 7. The lever 1034 is slidably connected in the relief groove 72. A relief spring 73 is provided at the upper end of the lever 1034. The end of the relief spring 73 away from the lever 1034 is connected to the inner wall of the switching plate 7. The lower end of the lever 1034 is engaged with the bolt 1033. The nut at the lower end of the bolt 1033 can abut against the lower end of the lever 1034. This design is so that after the atomizing nozzle 6 is inserted into the nozzle 4, when the operator tightens the bolt 1033, the upper end of the nut at the lower end can push the lever 1034 into the relief groove 72 during the upward tightening process, so that the lever 1034 will not be exposed on the side of the nut when tightening the bolt 1033, thus affecting the operation.

[0042] Please see 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 located at the upper end of the atomizing nozzle 6. The switching block 1023 is disposed within 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 switching spring 1022 is located away from the switch plate 7. One end of the switching block 1023 abuts against the inner wall of the atomizing nozzle 6. The lifting groove 1028 is opened at the lower end of the nozzle 4. The lifting block 1026 is slidably connected in the lifting groove 1028. 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 groove 10241. A one-way wheel 10231 is provided on the upper end of the switching block 1023 (the key physical principle of the one-way wheel 10231 lies in the ball bearings and gears inside the one-way wheel 10231). Alternatively, the roller may have a special mechanical device that allows it to roll smoothly in one direction but encounters greater resistance in the other (not shown in detail in the figure). The one-way wheel 10231 is in contact with the lower end of the switching turntable 1024. When the switching block 1023 rotates clockwise, the one-way wheel 10231, located at the lower end of the switching turntable 1024, experiences significant resistance and cannot rotate as it rotates with the switching block 1023. Conversely, the one-way wheel 10231 can roll and rub against the switching turntable 1024. The lower sliding groove 10241 and... The upper end of the switching block 1023 is engaged. This engagement means that when the one-way wheel 10231 moves to the lower end of the lower moving groove 10241, the switching turntable 1024 can move downward to allow the switching block 1023 to be inserted into the lower moving groove 10241. The gear retaining ring 1029 is located at the lower end of the transmission gear 3, and the lifting baffle 1027 is located on the side of the lifting block 1026. The side of the lifting baffle 1027 away from the lifting block 1026 extends out of the nozzle 4, and the upper end of the lifting block 1026 is in contact with the lower end of the gear retaining ring 1029.

[0043] Please see 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 slot 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 inside the nozzle 4, the water inlet pipe 1041 is connected to the water spray groove 1042, the atomizing wall 1043 is located at the lower end of the nozzle 4, the atomizing slot 62 is installed through the atomizing nozzle 6, and the sealing unit 1044 is located on the outside of the rotating shaft 5.

[0044] Please see 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 out, 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.

[0045] Please see 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 1017, and a rotating groove 1016. The connecting gear 1011 is located on the side of the transmission gear 3. Both the connecting gear 1011 and the transmission gear 3 are bevel gears. The connecting gear 1011 and the transmission gear 3 mesh. Here, meshing means that when the transmission gear 3 moves downward, the transmission gear 3 engages with the connecting gear 1011; when the transmission gear 3 moves upward, the transmission gear 3 disengages from the connecting gear 1011. 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 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 set on the UAV bracket 1 and meshes with the inner adjusting gear 1013. The rotating shaft 1017 is set on the UAV bracket 1 and 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 1017 is rotatably connected to the nozzle 4.

[0046] Working principle: Before installing the atomizing nozzle 6, the transmission gear 3, under the action of the transmission spring 83, engages with the connecting gear 1011 downwards. The gear retaining ring 1029 at the lower end of the transmission gear 3 is also engaged. At this time, the transmission stop 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 the same time, the locking block 95 at the lower end of the locking baffle 92 also extends out of the rotating shaft 5. The locking block 95 is inserted into the locking slot 96 on the nozzle 4, so that when the operator rotates the bolt 1033 during the installation of 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 facilitates the operator's installation and removal of the atomizing nozzle 6.

[0047] When installing the atomizing nozzle 6, the switching plate 7 inside the atomizing nozzle 6 is supported by the switching spring 1022, and the side of the switching block 1023 away from the switching spring 1022 abuts against the inner wall of the atomizing nozzle 6. The switching plate 7 remains in the state of rotating out of the nozzle slot 61, and the water channel 71 on the switching plate 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 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, and to prevent the switching block 1023 from pushing the switching turntable 1024, lifting ring 1025, and lifting block 1026 upwards during the installation of the atomizing nozzle 6, thereby causing the transmission gear 3 to move upwards, the transmission stop block inside the rotating shaft 5 is prevented from being blocked. 87 retracts into the rotating shaft 5 along the locking guide groove 91 to prevent the locking block 95 from pulling out the locking pin, which would cause the rotating shaft 5 and the spray pipe 4 to not lock properly when tightening the bolt 1033, resulting in relative rotation and making the bolt 1033 difficult to tighten. Therefore, a slot 10345 and a lever 1034 are designed so that when installing the atomizing nozzle 6, the operator first moves the lever 1034, causing the lever 1034 to rotate the switching plate 7. The rotation of the switching plate 7 causes the switching block 1023 to rotate, compressing the switching spring 1022. After aligning the upper end of the switching block 1023 with the lower sliding groove 10241, the installation block 1031 is then aligned with the installation groove 10346. This prevents the switching block 1023 from pushing the lifting block 1026 upwards when installing the atomizing nozzle 6, keeping the rotating shaft 5 locked during the installation of the atomizing nozzle 6, facilitating the operator's installation of the plant protection nozzle.

[0048] After the atomizing nozzle 6 is installed, the operator pulls the lifting baffle 1027 upwards, causing the lifting baffle 1027 to move the lifting block 1026 upwards. The lifting block 1026 then moves the lifting ring 1025 and the switching turntable 1024 upwards, causing the switching block 1023 to be pulled out of the lower sliding slot 10241. During this process, although the rotating shaft 5 unlocks first, the spring force of the switching spring 1022 is too small to reset and drive the atomizing nozzle 6 and the rotating shaft 5 to rotate relative to the switching block 1023. Furthermore, there is a gap between the switching turntable 1024 and the lifting ring 1025. The frictional force is greater than the elastic force of the switching spring 1022. Therefore, the switching spring 1022 can only be reset when the switching block 1023 is completely pulled out of the lower moving slot 10241 and moves to the lower end of the switching turntable 1024. This causes the switching block 1023 to drive the switching plate 7 to rotate relative to the atomizing nozzle 6. The end of the switching block 1023 away from the switching spring 1022 is in contact with the inner wall of the atomizing nozzle 6. The one-way wheel 10231 on the switching block 1023 rotates to be in contact with the lower end of the switching turntable 1024. The switching plate extends out of the nozzle slot 61, and the water channel 71 is not connected to the atomizing slot 62. At this time, the switching... The one-way wheel 10231 on block 1023 abuts against the switching turntable 1024 at the lower end of lifting block 1026. As lifting block 1026 moves upward until its lower end is abutted, lifting block 1026 drives gear retaining ring 1029 and transmission gear 3 to move upward relative to rotating shaft 5. The upward movement of transmission gear 3 drives connecting shaft 81 to move upward, compressing transmission spring 83 and disengaging transmission gear 3 from connecting gear 1011. Simultaneously, the upward movement of transmission gear 3 drives locking guide groove 91 and gear stop block 86 to move upward. During the upward movement of locking guide groove 91, transmission stop block... 87 will move along the locking guide groove 91 toward the center of the rotating shaft 5, and drive the locking baffle 92 to squeeze the locking spring 94, causing the locking block 95 to be pulled out of the locking slot 96, so that the rotating shaft 5 can rotate inside the nozzle 4. The transmission block 87 moves along the locking guide groove 91 toward the center of the rotating shaft 5, and finally moves to the position where it engages with the gear block 86. When the drive 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. With the cooperation of the transmission block 87 and the gear block 86, the connecting gear 1011 can drive the rotating shaft 5 to rotate together, thereby causing the rotating shaft 5 to drive the atomizing nozzle 6 to rotate.

[0049] When large-area atomized spraying of plant and crop leaves is required, the operator only needs to operate the drive motor 41 to make the motor shaft 2 rotate forward. The forward rotation of the motor shaft 2 drives the connecting shaft 81, transmission gear 3, rotating shaft 5, and 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 is in contact with the lower end of the switching turntable 1024. As the atomizing nozzle 6 rotates forward, the one-way wheel 10231 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 making the switching turntable 1024 rotate. 24. The switching plate 7 and the atomizing nozzle 6 can rotate synchronously. In this state, the switching spring 1022 is not compressed, the water channel 71 on the switching plate 7 is not connected to the atomizing channel 62, the switching plate 7 extends out of the nozzle slot 61, and water is injected into the water channel 1042 in the spray pipe 4 through the water inlet pipe 1041 during the rotation of the atomizing nozzle 6 and the switching plate 7. The liquid in the water channel 1042 flows out of the spray pipe 4 from the water channel 1042 and hits the atomizing nozzle 6 and the switching plate 7. Under the rotation of the atomizing nozzle 6, the liquid is thrown onto the atomizing wall 1043 and sprayed downwards through the gap between the atomizing wall 1043 and the atomizing nozzle 6, thereby spraying a large area of ​​atomized liquid onto the crops below.

[0050] When liquid spraying is required on the branches and trunks of fruit trees, the nozzle needs to have a good angle and spray force to ensure that the liquid passes through the leaves and sprays onto the branches and trunks. 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 rapidly. When the atomizing nozzle 6 reverses rapidly, 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 plate 7 first rotates relative to the atomizing nozzle 6, so that the switching block 1023 compresses the switching spring 1022. When the switching spring 1022 is compressed to its limit, the switching plate 7 retracts into the nozzle groove 61, connecting the water channel 71 and the atomizing channel 62. Then, the atomizing nozzle 6 continues to drive the switching block 1023 and the one-way wheel 10231 to rotate in reverse. Since the one-way wheel 10231 can roll in reverse, the rolling friction between the one-way wheel 10231 and the switching turntable 1024 is less than the rotational friction between the switching turntable 1024 and the lifting ring 1025. Therefore, the one-way wheel 10231 can eventually rotate to the switching turntable 1024. At the lower end of the downward sliding groove 10241, the transmission spring 83 at the lower end of the motor shaft 2 returns to its original position, driving the connecting shaft 81, transmission gear 3, gear retaining ring 1029, lifting block 1026, lifting ring 1025, and switching turntable 1024 to move downwards. This causes the switching block 1023 and one-way wheel 10231 to insert into the downward sliding groove 10241. During the downward movement of the connecting shaft 81 and transmission gear 3, the locking guide groove 91 and gear stop 86 are driven to move downwards. Finally, the gear retaining ring 1029 disengages from the transmission stop 87. This prevents the motor shaft 2 from rotating and thus prevents the rotating shaft 5 from rotating. At the same time, the transmission stop 87 extends outward from the rotating shaft 5 along the locking guide groove 91, thereby causing the locking block 95 to be inserted into the locking slot 96, preventing the rotating shaft 5 from rotating. This prevents the atomizing nozzle 6 from rotating when the atomizing component 104 is spraying water. Furthermore, the atomizing groove 62 is connected to the water flow groove 71, ensuring that part of the sprayed liquid is atomized and dispersed by the impact of the atomizing nozzle 6, while part is directly ejected along the atomizing groove 62 and the water flow groove 71, ensuring that the sprayed liquid can be smoothly sprayed onto branches that are farther and deeper.

[0051] To ensure a better spray angle for the plant protection nozzles when spraying liquid onto deeper branches and trunks, and to further guarantee that the liquid can be smoothly sprayed onto the branches and trunks, after the transmission gear 3 moves down, the rotating shaft 5 locks and cannot rotate with the motor shaft 2. The transmission gear 3 then meshes with the connecting gear 1011. The operator can then control the drive motor 41 to make the motor shaft 2 rotate forward or backward. When the motor shaft 2 rotates, it drives the transmission gear 3 to rotate, which in turn drives the connecting gear 1011 to rotate, and the connecting gear 1011 then drives the internal adjusting gear. When the inner adjusting gear 1013 rotates, since the drone bracket 1 is fixed and the outer adjusting gear 1014 is fixed on the drone bracket 1, the rotation of the inner adjusting gear 1013, in cooperation with the outer adjusting gear 1014, can drive the nozzle 4, the atomizing nozzle 6, etc. to rotate around the rotating shaft 1017 on the drone bracket 1. This allows the plant protection nozzle to have a longer spraying distance when spraying liquid onto branches and trunks, while also adjusting the spraying angle, thereby enabling the plant protection nozzle to better spray pesticides onto branches and trunks.

[0052] When it is necessary to re-spray the vegetation over a large area, the operator only needs to pull the lifting baffle 1027 upwards again to allow the switching plate 7 inside the atomizing nozzle 6 to extend out of the nozzle slot 61 again. The rotating shaft 5 can then rotate with the motor shaft 2, locking the rotating shaft 5 when the atomizing nozzle 6 of the plant protection nozzle is installed. This makes the installation of the atomizing nozzle 6 convenient, while also enabling the plant protection nozzle to achieve large-area atomizing spray. At the same time, the spray angle can be adjusted for long-distance spraying, making the plant protection nozzle more versatile and easy to install and disassemble. Example 2

[0053] A method for operating a plant protection nozzle is provided, which involves following these steps:

[0054] By rotating the lever 1034, the switching plate 7 is driven into the nozzle slot 61, so that when the atomizing nozzle 6 is installed at the lower end of the rotating shaft 5, the switching block 1023 can be inserted into the lower displacement slot 10241. By pulling the lifting baffle 1027, the switching block 1023 is pulled out of the lower displacement slot 10241, so that the switching plate 7 rotates out of the nozzle slot 61. When the drive motor 41 rotates in the forward direction, it can drive the atomizing nozzle 6 to spray atomized liquid. By controlling the drive motor 41 to reverse, the switching block 1023 is inserted into the lower displacement slot 10241, so that the transmission gear 3 moves down and locks the rotating shaft 5, ensuring that the rotating shaft 5 will not rotate when the atomizing nozzle 6 sprays a long-range water column. By moving the transmission gear 3 down and engaging with the connecting gear 1011, when the drive motor 41 rotates, it can drive the atomizing nozzle 6 to adjust the angle. By stopping the drive motor 41, the atomizing nozzle 6 maintains the spray angle and sprays a water column with a longer spray distance.

[0055] By setting a locking component 9 inside the nozzle 4, the rotating shaft 5 is locked when the atomizing nozzle 6 of the plant protection nozzle is installed, making the installation of the atomizing nozzle 6 convenient. A switching plate 7 is set inside the atomizing nozzle 6, so that the atomizing nozzle 6 automatically unlocks after installation and engages with the motor shaft 2. When the drive motor 41 rotates forward, the plant protection nozzle can achieve large-area atomized spraying, improving the spraying area and spraying efficiency. When the drive motor 41 rotates in reverse, it automatically switches the spraying mode of the atomizing nozzle 6, so that the plant protection nozzle can spray at a long distance without replacing the nozzle. At the same time, the spray angle can also be adjusted so that when the plant protection nozzle sprays at a long distance, there is a better spray angle to accurately spray the liquid onto the vegetation.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A plant protection nozzle, mounted on a drone bracket (1), characterized in that: The system includes 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 plate (7) sequentially connected to the lower end of the motor shaft (2). The nozzle (4) is rotatably connected to the UAV bracket (1), and the motor shaft (2) is located inside the nozzle (4). When the atomizing nozzle (6) is not installed on the rotating shaft (5), the transmission component (8) is used to maintain the downward push of the transmission gear (3) 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). The atomizing nozzle (6) is provided with a nozzle groove (61). The switching plate (7) is provided in the nozzle groove (61). After the rotating shaft (5) is fixed, the mounting component (103) retracts the switching plate (7) into the nozzle groove (61) and fixes the atomizing nozzle (6) to the rotating shaft (5). After the atomizing nozzle (6) is installed 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. After the nozzle (4) rotates to the preset angle, the atomizing component (104) cooperates with the switching plate (7) and the atomizing nozzle (6) to spray out a water column. When water mist needs to be sprayed, the reset component (102) drives the transmission gear (3) to move upward and mesh with the rotating shaft (5), and cooperates with the installation component (103) to rotate the switching plate (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 plate (7) to spray water mist; When it is necessary to spray water again, the rotating shaft (5) is rotated in another direction, so that the transmission component (8) pushes the transmission gear (3) downward to separate from the rotating shaft (5), so that the locking component (9) fixes the rotating shaft (5) again, so that the adjusting component (101) re-cooperates with the transmission gear (3) to adjust the angle of the nozzle (4), and then the atomizing component (104) cooperates with the switching plate (7) and the atomizing nozzle (6) to spray water. The reset component (102) includes a switching groove (1021), a switching spring (1022), a switching block (1023), a switching turntable (1024), a lifting ring (1025), a lifting block (1026), a lifting baffle (1027), a lifting groove (1028), and a gear retaining ring (1029). The switching groove (1021) is located on the upper end of the atomizing nozzle (6). The switching block (1023) is located inside 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 located on the lower end of the nozzle (4). The lifting block (1026) is slidably connected to the lifting groove (1029). Inside 028), the lifting ring (1025) is fixedly connected to the lower end of the lifting block (1026), and 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 groove (10241), and the upper end of the switching block (1023) is provided with a one-way wheel (10231). The one-way wheel (10231) is attached to the lower end of the switching turntable (1024). The lower moving groove (10241) is engaged with the upper end of the switching block (1023), the gear retaining ring (1029) is disposed at the lower end of the transmission gear (3), the lifting baffle (1027) is disposed on the side of the lifting block (1026), the lifting baffle (1027) extends out of the nozzle (4) on the side away from the lifting block (1026), and the upper end of the lifting block (1026) is engaged with the lower end of the gear retaining ring (1029); 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 (1017), and a rotating groove (1016). The connecting gear (1011) is disposed on the side of the transmission gear (3) and engages with the transmission gear (3). The gear shaft (1012) is rotatably connected to the side wall of the nozzle (4). The side of the connecting gear (1011) away from the transmission gear (3) is fixedly connected to the gear shaft (1012). 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 set on the drone support (1). The outer adjusting gear (1014) meshes with the inner adjusting gear (1013). The rotating shaft (1017) is set on the drone support (1). The rotating shaft (1017) is concentric with the inner adjusting gear (1013). The rotating groove (1016) is opened on both sides of the nozzle (4). The rotating shaft (1017) is rotatably connected to the nozzle (4).

2. The plant protection nozzle according to claim 1, characterized in that: The transmission component (8) includes a connecting shaft (81), a rising groove (82), a transmission spring (83), a wedge (84), a wedge groove (85), a gear stop (86), and a transmission stop (87). A drive motor (41) is installed inside the nozzle (4). The drive motor (41) is connected to the upper end of the motor shaft (2). The rising groove (82) is located at the lower end of the motor shaft (2). The connecting shaft (81) is located at the upper end of the transmission gear (3). The connecting shaft (81) is slidably connected to the rising groove (82). The wedge (84) is located in the rising groove (85). Inside 82), the wedge groove (85) is opened 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 outside 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), the connecting shaft (81) is provided with a connecting groove (811), the gear stop block (86) is provided in the connecting groove (811), the transmission stop block (87) is provided on the rotating shaft (5), and the transmission stop block (87) cooperates with the gear stop block (86).

3. The plant protection nozzle according to claim 2, characterized in that: The locking component (9) includes 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 located on the upper end of the gear block (86) in the connecting groove (811). The locking groove (93) is located inside 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 located away from the center of the rotating shaft (5) and is connected to the transmission block (87). The locking spring (94) is connected to the locking baffle (92) near the center of the rotating shaft (5) and the inner wall of the rotating shaft (5) at both ends. The locking block (95) is fixedly connected to the lower end of the locking baffle (92) near the transmission block (87). The locking slot (96) is set in the nozzle (4). The locking guide groove (91) is engaged with the end of the transmission block (87) away from the locking baffle (92). The end of the locking block (95) away from the locking baffle (92) is engaged with the locking slot (96).

4. The plant protection nozzle according to claim 3, characterized in that: The mounting component (103) includes a mounting block (1031), a threaded groove (1032), a bolt (1033), a lever (1034), a groove (10345), and a mounting slot (10346). The mounting block (1031) is fixedly connected to the lower end of the rotating shaft (5). The mounting slot (10346) is opened at the upper end of the atomizing nozzle (6). The mounting block (1031) is connected to the mounting slot (10346). The threaded groove (1032) is located at the bottom of the mounting block (1031). The bolt (1033) is located in the atomizing nozzle (6). The bolt (1033) is detachably connected to the threaded groove (1032). The slot (10345) is opened at the lower end of the atomizing nozzle (6). The slot (10345) is connected to the nozzle groove (61). The lever (1034) is set at the lower end of the switching plate (7). The lever (1034) extends out of the lower end of the atomizing nozzle (6) through the slot (10345). The atomizing nozzle (6) is provided with multiple atomizing grooves (62). The switching plate (7) is provided with multiple water flow grooves (71). The atomizing grooves (62) and the water flow grooves (71) cooperate with each other.

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

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

7. The plant protection nozzle according to claim 6, characterized in that: The sealing unit (1044) includes a first sealing ring (10441) and a second sealing ring (10442). The first sealing ring (10441) is disposed at the lower end of the nozzle (4), and the second sealing ring (10442) is disposed at the upper end of the atomizing nozzle (6). The first sealing ring (10441) and the second sealing ring (10442) are in close contact with each other.

8. A method for operating a plant protection nozzle, characterized in that: Including the plant protection nozzle as described in claim 7, and the following operating steps: By rotating the lever (1034), the switching plate (7) is driven into the nozzle slot (61), so that when the atomizing nozzle (6) is installed at the lower end of the rotating shaft (5), the switching block (1023) can be inserted into the lower moving slot (10241); By pulling the lifting baffle (1027), the switching block (1023) is pulled out of the lower moving slot (10241), so that the switching plate (7) rotates out of the nozzle slot (61), and when the drive motor (41) rotates in the forward direction, it can drive the atomizing nozzle (6) to spray out atomized liquid. By controlling the drive motor (41) to reverse, the switching block (1023) is inserted into the lower moving slot (10241), and the transmission gear (3) moves down to lock the rotating shaft (5), ensuring that the rotating shaft (5) will not rotate when the atomizing nozzle (6) sprays a remote water column; By moving the transmission gear (3) down to mesh with the connecting gear (1011), the drive motor (41) can rotate, thereby driving the atomizing nozzle (6) to adjust its angle. By stopping the drive motor (41), the atomizing nozzle (6) maintains the spray angle, and a water column with a longer spray distance is sprayed.

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