A forestry pest control spraying device

Abstract

The present invention discloses a forestry pest control spraying device, comprising a drone, a water tank, a spray pump and two spray pipes. The water tank is installed at the bottom of the drone, the medicine outlet of the water tank is fixedly connected to and communicated with the input end of the spray pump, the output end of the spray pump is fixedly connected to the water outlet pipe, one end of the water outlet pipe is fixedly connected to a switching box, the top of the switching box is fixedly connected to a return pipe, one end of the return pipe is fixedly connected to and communicated with the side wall of the water tank, a U-shaped intubation and a medicine storage box are provided, and an appropriate amount of liquid medicine is added to the flowing water, and then the water enters the mixing box for effective mixing. In this way, there is no need for the whole drone to go back and forth, and the switching of different medicines can be completed in the air. At the same time, there is no need to mix the water and liquid medicine in advance, which avoids the generation of residual medicine after spraying, which causes waste. It can greatly save electricity, improve the overall endurance, and save some water resources.

Description

Technical Field

[0001] The invention relates to the field of forestry pest control, and in particular to a forestry pest control spraying device. Background Art

[0002] Forestry refers to the production sector that protects the ecological environment and maintains ecological balance, cultivates and protects forests to obtain timber and other forest products, and utilizes the natural characteristics of forests to play a protective role. It is an important part of the national economy.

[0003] During forest protection and afforestation and other forestry activities, if pests and diseases invade, in mild cases, some trees will become withered and yellow, affecting their growth. In severe cases, it may even lead to large-scale death. In addition, pests and diseases will continue to spread, seriously affecting the normal growth of trees. Therefore, it is necessary to take precautions against pests and diseases in advance.

[0004] The existing prevention method is still mainly spraying pesticides. Since the trees grow tall, thick and dense, the traditional backpack sprayer has been eliminated due to its low efficiency. Instead, drones are used to spray pesticides, which is more efficient.

[0005] Existing drone spraying systems are roughly composed of the following parts: drone, water tank, drug delivery component and spraying component. After the drugs are configured at the bottom, they are loaded into the water tank. Then the drone takes off with the operator operating the remote control handle. The drugs are then transported to the spraying component through the drug delivery component and spread on the tops of the trees.

[0006] However, there are some shortcomings. Due to the model and load conditions, the drone can only carry a limited amount of medicine. Different medicines are selected for different pests and diseases. This will cause the drone to return to replace the medicine. A round trip consumes a lot of power from the drone battery, resulting in a decrease in the drone's endurance and affecting the overall work efficiency. Moreover, in the process of filling the medicine, most people still use the method of manually lifting buckets and pouring them inward, which is inefficient and will also affect the spraying progress. Summary of the Invention

[0007] In order to solve the above problems, the present invention provides a forestry pest control spraying device.

[0008] The present invention is achieved through the following technical solutions:

[0009] A forestry pest control spraying device comprises a drone, a water tank, a spray pump and two spray pipes. A water tank is installed at the bottom of the drone, the medicine outlet of the water tank is fixedly connected to and communicated with the input end of the spray pump, the output end of the spray pump is fixedly connected to a water outlet pipe, one end of the water outlet pipe is fixedly connected to a switching box, the top of the switching box is fixedly connected to a return pipe, one end of the return pipe is fixedly connected to and communicated with the side wall of the water tank, a water inlet pipe is fixedly connected to the switching box, one end of the water inlet pipe is fixedly connected to a mixing box, two connecting hoses are fixedly connected to the side wall of the mixing box, one end of the two connecting hoses are respectively fixedly connected to and communicated with the medicine inlet of the spray pipe, a U-shaped intubation is fixedly inserted into the mixing box, and a medicine storage box is provided on the U-shaped intubation.

[0010] Preferably, a water inlet is provided on one side of the water tank, the water inlet is covered with a sealing cover, a filter is installed at the water inlet, and a thread is provided on the inner wall of the water inlet.

[0011] The top end face of said sliding panel also is provided with an inner wall of said sliding panel, and the bottom end of said sliding panel is provided with an inner wall of said sliding panel and said second end of said sliding panel is provided with an inner wall of said sliding panel.

[0012] Preferably, the spray tube is a hollow rod, and an atomizing nozzle is fixedly installed at the bottom end of the spray tube.

[0013] Preferably, a plurality of partitions are evenly and fixedly installed in the mixing box, each partition is provided with a through hole, and the axes of the through holes do not overlap with each other.

[0014] The cam is fixedly mounted on the top of the U-shaped cannula, and the cam is evenly arranged and connected to the cam. A one-way valve is fixedly installed in the U-shaped cannula, and the axis of one end of the U-shaped cannula coincides with the axis of the water inlet pipe. The bottom end of the medicine storage box is fixedly connected to a fixing frame, and the fixing frame is an inverted U-shape. The medicine storage box is fixedly connected to the side wall of the return pipe through a reinforcing rod. A lifting sleeve is sleeved on the fixed pipes, and the multiple lifting sleeves pass through the fixing frame and are slidably connected thereto. Each lifting sleeve is provided with two medicine inlet holes, and the two medicine inlet holes on each lifting sleeve have different diameters, and the axial extension lines of the two medicine inlet holes are perpendicular. A sealing sleeve is sleeved on the outside of each lifting sleeve, and the multiple sealing sleeves are respectively fixedly mounted on the fixing frame. A third blocking block is fixedly installed on the top of each lifting sleeve, and a plurality of through grooves are provided at the bottom of the medicine storage box. The top of each third blocking block extends into the corresponding through groove and is slidably connected thereto.

[0015] Preferably, the U-shaped insert is made of hard alloy material, and a sealing rubber layer is attached to the inner wall of the sealing sleeve and the outer wall of the third blocking block.

[0016] Preferably, a plurality of sealing plates are fixedly installed in the medicine storage box, and the internal space of the medicine storage box is divided into a plurality of medicine storage spaces by the plurality of sealing plates. A third fixed cylinder and a fourth fixed cylinder are fixedly connected to the two sides of the medicine storage box respectively. A fixed plate is fixedly installed in the medicine storage box, and the fixed plates respectively pass through the plurality of medicine storage spaces. A plurality of small circulation pumps are fixedly installed on the fixed plates, and the output end of each small circulation pump passes through the fixed plate and communicates with the space below the fixed plate. A mounting frame is fixedly connected between the inner walls of both sides of the medicine storage box, and the mounting frame is arranged below the fixed plate. A plurality of second electromagnetic blocks are fixedly installed on the mounting frame, and the second electromagnetic blocks are arranged in the corresponding medicine storage spaces. A third spring is sleeved on each second electromagnetic block, and the top end of the third spring is fixedly connected to the bottom end of the mounting frame, and the bottom end of the third spring is fixedly connected to the top end of the corresponding third blocking block. A plurality of dovetail grooves are provided on the bottom surface, each dovetail groove is provided in a corresponding medicine storage space, a dovetail block is slidably connected in each dovetail groove, the top of each dovetail block is fixedly connected to an arc baffle, a plurality of meshing teeth are fixedly installed on the outer arc wall of the arc baffle, a plurality of gears are rotatably connected to the inner bottom surface of the medicine storage box, each gear is respectively meshed with the meshing teeth on the outer arc wall of the corresponding arc baffle, a rack is provided in the medicine storage box, the bottom end of the rack is fitted with the inner bottom surface of the medicine storage box, and the rack is respectively meshed with a plurality of gears, and the two ends of the rack are respectively extended into the corresponding third fixed cylinder and fourth fixed cylinder, a third electromagnetic block is fixedly installed on the inner wall of one side of the third fixed cylinder, a fourth spring is fixedly connected to the inner wall of one side of the fourth fixed cylinder, one end of the fourth spring is fixedly connected to the extension end of the rack, and the fourth spring is a tension spring.

[0017] Compared with the existing technology, the beneficial effects of the present invention are: a U-shaped intubation tube and a medicine storage box are provided, and an appropriate amount of medicine liquid is added to the flowing water, and then enters the mixing box to obtain effective mixing. In this way, there is no need for the whole to go back and forth, and the switching of different medicines can be completed in the air. At the same time, there is no need to mix the water and the medicine liquid in advance, which avoids the generation of residual medicine after spraying and the waste caused by it. It can greatly save electricity, improve the overall endurance, and save some water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a first perspective stereogram of the structure of the present invention;

[0019] Figure 2 is a second perspective perspective view of the structure of the present invention;

[0020] Figure 3 The structure of the present invention Figure 2 An enlarged schematic diagram of the middle medicine storage box;

[0021] Figure 4 The structure of the present invention Figure 2 An enlarged schematic diagram of the switching box;

[0022] Figure 5 The structure of the present invention Figure 3 Top view cross-section of the middle medicine storage tank.

[0023] In the figure: drone 1, water tank 2, spray pump 3, water outlet pipe 4, switching box 5, lifting block 5-1, first blocking block 5-2, slot 5-3, plug block 5-4, second blocking block 5-5, first limiting slide bar 5-6, second limiting slide bar 5-7, guide hole 5-8, guide rod 5-9, return pipe 6, first fixing cylinder 7, first spring 7-1, second fixing cylinder 8, first electromagnetic block 8-1, second spring 8-2, water inlet pipe 9, mixing box 10, partition 10-1, through hole 10-2, connecting hose 11, spray pipe 12, U-shaped intubation pipe 13, fixing pipe 13-1, Fixed frame 13-2, lifting sleeve 13-3, medicine feed hole 13-4, sealing sleeve 13-5, third blocking block 13-6, medicine storage box 14, third fixed cylinder 14-1, fourth fixed cylinder 14-2, medicine storage space 14-3, small circulation pump 14-4, mounting frame 14-5, second electromagnetic block 14-6, third spring 14-7, through groove 14-8, dovetail groove 14-9, dovetail block 14-10, arc baffle 14-11, gear 14-12, rack 14-13, fixed plate 14-14, fourth spring 14-15, third electromagnetic block 14-16. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0025] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 As shown, a forestry pest control spraying device includes a drone 1, a water tank 2, a spray pump 3 and two spray pipes 12. The water tank 2 is installed at the bottom of the drone 1, and the medicine outlet of the water tank 2 is fixedly connected to and communicated with the input end of the spray pump 3. The output end of the spray pump 3 is fixedly connected to the water outlet pipe 4, one end of the water outlet pipe 4 is fixedly connected to the switching box 5, the top of the switching box 5 is fixedly connected to the return pipe 6, one end of the return pipe 6 is fixedly connected to the side wall of the water tank 2 and communicated, the switching box 5 is fixedly connected to the water inlet pipe 9, one end of the water inlet pipe 9 is fixedly connected to the mixing box 10, two connecting hoses 11 are fixedly connected to the side wall of the mixing box 10, one end of the two connecting hoses 11 are respectively fixedly connected to the medicine inlet of the spray pipe 12 and communicated, a U-shaped intubation 13 is fixedly inserted into the mixing box 10, and the U-shaped intubation 13 A medicine storage box 14 is provided on it. When working, the water in the water tank 2 is input into the switching box 5 through the spray pump 3. During normal operation, the switching box 5 allows the water to flow out along the water inlet pipe and enter the mixing box 10. At the same time, a U-shaped intubation 13 and a medicine storage box 14 are provided. An appropriate amount of liquid medicine is added to the flowing water, and then after entering the mixing box 10, it is effectively mixed and enters the two connecting hoses 11, and is sprayed out along the atomizing nozzle at the bottom of the spray pipe 12, thereby successfully completing the spraying work. In this way, there is no need for the whole to go back and forth, and the switching of different agents can be completed in the air. At the same time, there is no need to mix the water and liquid medicine in advance, which avoids the generation of residual medicine after spraying, which causes waste. It can greatly save electricity, improve the overall endurance, and save some water resources.

[0026] A water inlet is provided on one side of the water tank 2, and the water inlet is covered with a sealing cover. A filter is installed at the water inlet, and a thread is provided on the inner wall of the water inlet. When adding water, a hose can be used to directly connect to the water inlet. After starting the spray pump 3, water can automatically enter the water tank 2, thereby speeding up the water replenishment speed and further improving efficiency.

[0027] A second fixed cylinder 8 is fixedly connected to the side wall of the switching box 5, and a first fixed cylinder 7 is fixedly connected to the bottom of the switching box 5. A first spring 7-1 is provided in the first fixed cylinder 7. A lifting block 5-1 is provided in the switching box 5, and a slot 5-3 is provided on the lifting block 5-1. A first blocking block 5-2 is fixedly installed on the top of the lifting block 5-1. The inner top surface of the slot 5-3 is inclined. A slidingly connected plug block 5-4 is inserted into the slot 5-3. The bottom end of the lifting block 5-1 is fixedly connected to a first limiting slide rod 5-6. The bottom end of the first limiting slide rod 5-6 extends into the first fixed cylinder 7 and is slidably connected thereto. A second The limiting slide 5-7, a guide hole 5-8 is provided in the second limiting slide 5-7, a guide rod 5-9 is slidably connected in the guide hole 5-8, one end of the guide rod 5-9 is fixedly connected to the inner wall of the switching box 5, one end of the second limiting slide 5-7 extends into the second fixed cylinder 8 and is slidably connected thereto, a first electromagnetic block 8-1 is fixedly installed on the inner wall of one side of the second fixed cylinder 8, the first electromagnetic block 8-1 is covered with a second spring 8-2, a second blocking block 5-5 is fixedly installed on the bottom of the plug 5-4, the second blocking block 5-5 coincides with the axis of the water inlet pipe 9, and the first blocking block 5-2 coincides with the axis of the return pipe 6. When performing normal operation, as shown in the attached Figure 4 As shown, at this time, the first electromagnetic block 8-1 is in the energized state, generating magnetic force, adsorbing the second limiting slide bar 5-7 to the right side, keeping the first blocking block 5-2 blocking the inlet of the return pipe 6, so that water flows along the water inlet pipe 9, thereby ensuring the normal operation. When the water replenishment work is carried out, the circuit of the first electromagnetic block 8-1 is disconnected by the remote control, so that the magnetic force disappears, and then under the elastic force of the second spring 8-2, the second limiting slide bar 5-7 moves to the left, so that the elastic force of the first spring 7-1 is reset. The first spring 7-1 is a tension spring. The top of the first spring 7-1 is fixed to the bottom end of the first limiting slide bar 5-6, and the bottom end of the first spring 7-1 is fixedly connected to the inner bottom surface of the first fixed cylinder 7. In this way, during the movement, the second blocking block 5-5 blocks the water inlet pipe 9, so that the return pipe 6 is connected, thereby causing negative pressure in the water tank 2, which can have a certain suction force, and introduce water from the external water bucket through the hose, which is convenient for operation and improves efficiency.

[0028] The medicine spraying pipe 12 is a hollow rod, and an atomizing nozzle is fixedly installed at the bottom end of the medicine spraying pipe 12 to ensure that normal medicine spraying work can be carried out.

[0029] A plurality of partitions 10-1 are evenly and fixedly installed in the mixing box 10, and each partition 10-1 is provided with a through hole 10-2. The axes of the through holes 10-2 do not overlap with each other. The interior is divided into a plurality of spaces by using a plurality of partitions 10-1, and a plurality of through holes 10-2 with different diameters and non-overlapping axes are used to increase the flow distance of the liquid inside, which can further make the liquid medicine fully mixed, thereby ensuring the smooth completion of the spraying work.

[0030] The top of the U-shaped cannula 13 is fixedly connected to a plurality of fixed pipes 13-1, and the plurality of fixed pipes 13-1 are evenly arranged, and the fixed pipes 13-1 are all connected to the U-shaped cannula 13, and a one-way valve is fixedly installed in the U-shaped cannula 13. The axis of one end of the U-shaped cannula 13 coincides with the axis of the water inlet pipe 9. The bottom end of the medicine storage box 14 is fixedly connected to a fixed frame 13-2, and the fixed frame 13-2 is an inverted U-shape. The medicine storage box 14 is fixedly connected to the side wall of the return pipe 6 through a reinforcing rod. A lifting sleeve 13-3 is sleeved on each of the fixed pipes 13-1, and a plurality of lifting sleeves 1 3-3 all pass through the fixed frame 13-2 and are slidably connected thereto. Each lifting sleeve 13-3 is provided with two medicine feed holes 13-4. The diameters of the two medicine feed holes 13-4 on each lifting sleeve 13-3 are different, and the axial extension lines of the two medicine feed holes 13-4 are vertical. A sealing sleeve 13-5 is sleeved on the outside of each lifting sleeve 13-3. Multiple sealing sleeves 13-5 are respectively fixedly installed on the fixed frame 13-2. A third blocking block 13-6 is fixedly installed on the top of each lifting sleeve 13-3. A plurality of through slots are provided at the bottom of the medicine storage box 14. 14-8, the top of each third blocking block 13-6 extends into the corresponding through groove 14-8 and is slidably connected thereto. When filling the liquid medicine, different medicines are selected according to different pests and diseases. At this time, according to the button on the remote control, the corresponding second electromagnetic block 14-6 is energized to generate magnetic force, thereby adsorbing the top of the third blocking block 13-6, prompting the third blocking block 13-6 to drive the lifting sleeve 13-3 to rise, so that the medicine inlet 13-4 is exposed in the medicine storage space 14-3, thereby forming a passage, so that the liquid medicine It enters the U-shaped cannula 13 smoothly, and a one-way valve is installed in the U-shaped cannula 13. Since the direction of water flow is from right to left, when the liquid medicine enters the U-shaped cannula 13, due to the cooperation of the water flow and the one-way valve, the U-shaped cannula 13 is under negative pressure, thereby continuously prompting the liquid medicine to enter the water inlet pipe 9 and mix with the water, thereby ensuring the normal operation. In addition, two medicine inlet holes 13-4 with different diameters are provided, which can effectively control the medicine feeding speed, select high concentration for serious damage areas, select low concentration for prevention areas, and use the medicine more reasonably.

[0031] The U-shaped insert 13 is made of hard alloy material, and a sealing rubber layer is attached to the inner wall of the sealing sleeve 13-5 and the outer wall of the third blocking block 13-6 to ensure sealing and supporting properties.

[0032] A plurality of sealing plates are fixedly installed in the medicine storage box 14, and the medicine storage box 14 divides the internal space into a plurality of medicine storage spaces 14-3 through the plurality of sealing plates. A third fixed cylinder 14-1 and a fourth fixed cylinder 14-2 are fixedly connected on both sides of the medicine storage box 14, and a fixed plate 14-14 is fixedly installed in the medicine storage box 14. The fixed plates 14-14 pass through the plurality of medicine storage spaces 14-3 respectively, and a plurality of small circulation pumps 14-4 are fixedly installed on the fixed plate 14-14. The output end of each small circulation pump 14-4 passes through the fixed plate 14-14 and communicates with the space below the fixed plate 14-14. A mounting frame 14-5 is fixedly connected between the inner walls of both sides of the medicine storage box 14, and the mounting frame 14-5 is arranged below the fixed plate 14-14. -5 is fixedly mounted with a plurality of second electromagnetic blocks 14-6, the second electromagnetic blocks 14-6 are arranged in the corresponding medicine storage space 14-3, each second electromagnetic block 14-6 is sleeved with a third spring 14-7, the top end of the third spring 14-7 is fixedly connected to the bottom end of the mounting frame 14-5, the bottom end of the third spring 14-7 is fixedly connected to the top end of the corresponding third blocking block 13-6, a plurality of dovetail grooves 14-9 are provided on the inner bottom surface of the medicine storage box 14, each dovetail groove 14-9 is arranged in the corresponding medicine storage space 14-3, a dovetail block 14-10 is slidably connected in each dovetail groove 14-9, the top end of each dovetail block 14-10 is fixedly connected to an arc baffle 14-11, and the outer arc wall of the arc baffle 14-11 is fixed A plurality of meshing teeth are installed, and a plurality of gears 14-12 are rotatably connected to the inner bottom surface of the medicine storage box 14, and each gear 14-12 is respectively engaged with the meshing teeth on the outer arc wall of the corresponding arc-shaped baffle 14-11. A rack 14-13 is provided in the medicine storage box 14, and the bottom end of the rack 14-13 is fitted with the inner bottom surface of the medicine storage box 14, and the rack 14-13 is respectively engaged with a plurality of gears 14-12. The two ends of the rack 14-13 are respectively extended into the corresponding third fixed cylinder 14-1 and the fourth fixed cylinder 14-2. A third electromagnetic block 14-16 is fixedly installed on the inner wall of one side of the third fixed cylinder 14-1, and a fourth spring 14-15 is fixedly connected to the inner wall of one side of the fourth fixed cylinder 14-2. One end is fixedly connected to the extending end of the rack 14-13, and the fourth spring 14-15 is a tension spring. When working, the cover on the top of the medicine storage box 14 is opened, and the corresponding medicine is added to each medicine storage space 14-3, and the name of the medicine corresponding to each button is marked on the remote control. When working, after the operator presses the button on the remote control, the small circulation pump 14-4 starts to start, thereby transferring the medicine liquid and applying a pressure to the lower part of the medicine storage space 14-3 to ensure that the medicine liquid can be discharged smoothly. After the second electromagnetic block 14-6 is started, the third blocking block 13-6 rises, so that the medicine liquid flows through the medicine inlet hole 13-4. At this time, an arc-shaped baffle 14-11 is provided to block the other medicine inlet hole 13-4.This ensures that only one drug inlet 13-4 is working, thereby achieving the purpose of controlling the subsequent drug concentration. When switching between high and low concentrations, pressing the switch on the remote control activates the third electromagnetic block 14-16, which attracts one end of the rack 14-13, causing the rack 14-13 to move, thereby causing the rack 14-13 to drive multiple gears 14-12 to move to the right, driving the gears 14-12 to rotate clockwise, thereby causing the arc baffle 14-11 to rotate counterclockwise, thereby blocking the other drug inlet 13-4 and achieving mutual conversion between different concentrations. The operation is simple and convenient.

[0033] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A forestry pest control spraying device, comprising a drone (1), a water tank (2), a spray pump (3) and two spray pipes (12), characterized in that: A water tank (2) is installed at the bottom of the drone (1), the medicine outlet of the water tank (2) is fixedly connected to and communicated with the input end of the spray pump (3), the output end of the spray pump (3) is fixedly connected to a water outlet pipe (4), one end of the water outlet pipe (4) is fixedly connected to a switching box (5), the top of the switching box (5) is fixedly connected to a return pipe (6), one end of the return pipe (6) is fixedly connected to and communicated with the side wall of the water tank (2), the switching box (5) is fixedly connected to a water inlet pipe (9), one end of the water inlet pipe (9) is fixedly connected to a mixing box (10), the mixing box (11) is fixedly connected to the water inlet pipe (9), and the mixing box (11) is fixedly connected to the water inlet pipe (9). Two connecting hoses (11) are fixedly connected to the side wall of the box (10), and one end of the two connecting hoses (11) is fixedly connected to and communicates with the medicine inlet of the spraying pipe (12). A U-shaped cannula (13) is fixedly inserted into the mixing box (10), and a medicine storage box (14) is provided on the U-shaped cannula (13). The top of the U-shaped cannula (13) is fixedly connected to a plurality of fixed pipes (13-1), and the plurality of fixed pipes (13-1) are evenly arranged, and the fixed pipes (13-1) are all communicated with the U-shaped cannula (13). A one-way valve is fixedly installed in the U-shaped cannula (13). The axis of one end of the U-shaped insert (13) coincides with the axis of the water inlet pipe (9), the bottom end of the medicine storage box (14) is fixedly connected to a fixing frame (13-2), the fixing frame (13-2) is in an inverted U-shape, the medicine storage box (14) is fixedly connected to the side wall of the return pipe (6) through a reinforcing rod, and a lifting sleeve (13-3) is sleeved on each of the fixed pipes (13-1), and the plurality of lifting sleeves (13-3) pass through the fixing frame (13-2) and are slidably connected thereto, and each lifting sleeve (13-3) is provided with two medicine inlet holes (13-4), and each lifting sleeve (13-3) has a plurality of lifting sleeves (13-3) and a plurality of lifting sleeves (13-3) connected thereto. The two medicine feed holes (13-4) have different diameters, and the axis extension lines of the two medicine feed holes (13-4) are perpendicular. A sealing sleeve (13-5) is sleeved on the outside of each lifting sleeve (13-3). The multiple sealing sleeves (13-5) are respectively fixedly mounted on the fixing frame (13-2). A third blocking block (13-6) is fixedly mounted on the top of each lifting sleeve (13-3). The bottom of the medicine storage box (14) is provided with multiple through grooves (14-8). The top of each third blocking block (13-6) extends into the corresponding through groove (14-8) and is slidably connected thereto.

2. A forestry pest control spraying device according to claim 1, characterized in that: A water inlet is provided on one side of the water tank (2), the water inlet is covered with a sealing cover, a filter is installed at the water inlet, and a thread is provided on the inner wall of the water inlet.

3. The forestry pest control spraying device according to claim 1, characterized in that: The side wall of the switching box (5) is fixedly connected to a second fixed cylinder (8), the bottom of the switching box (5) is fixedly connected to a first fixed cylinder (7), a first spring (7-1) is provided in the first fixed cylinder (7), a lifting block (5-1) is provided in the switching box (5), a slot (5-3) is provided on the lifting block (5-1), a first blocking block (5-2) is fixedly installed on the top of the lifting block (5-1), the inner top surface of the slot (5-3) is inclined, a slidingly connected plug block (5-4) is inserted into the slot (5-3), the bottom end of the lifting block (5-1) is fixedly connected to a first limiting slide rod (5-6), the bottom end of the first limiting slide rod (5-6) extends into the first fixed cylinder (7) and is slidably connected thereto, and the plug block (5-4) is fixedly connected to the bottom end of the lifting block (5-1). A second limiting slide bar (5-7) is fixedly inserted, a guide hole (5-8) is provided in the second limiting slide bar (5-7), a guide bar (5-9) is slidably connected in the guide hole (5-8), one end of the guide bar (5-9) is fixedly connected to the inner wall of the switching box (5), one end of the second limiting slide bar (5-7) extends into the second fixed cylinder (8) and is slidably connected thereto, a first electromagnetic block (8-1) is fixedly installed on the inner wall of one side of the second fixed cylinder (8), a second spring (8-2) is provided on the outer sleeve of the first electromagnetic block (8-1), a second blocking block (5-5) is fixedly installed on the bottom of the insert block (5-4), the second blocking block (5-5) coincides with the axis of the water inlet pipe (9), and the first blocking block (5-2) coincides with the axis of the return pipe (6).

4. The forestry pest control spraying device according to claim 1, characterized in that: The spraying pipe (12) is a hollow rod, and an atomizing nozzle is fixedly installed at the bottom end of the spraying pipe (12).

5. The forestry pest control spraying device according to claim 1, characterized in that: A plurality of partitions (10-1) are evenly and fixedly installed in the mixing box (10), each partition (10-1) is provided with a through hole (10-2), and the axes of the through holes (10-2) do not overlap with each other.

6. The forestry pest control spraying device according to claim 1, characterized in that: The U-shaped insert (13) is made of a hard alloy material, and a sealing rubber layer is attached to the inner wall of the sealing sleeve (13-5) and the outer wall of the third blocking block (13-6).

7. The forestry pest control spraying device according to claim 1, characterized in that: A plurality of sealing plates are fixedly installed in the medicine storage box (14), and the medicine storage box (14) divides the internal space into a plurality of medicine storage spaces (14-3) through the plurality of sealing plates. A third fixed cylinder (14-1) and a fourth fixed cylinder (14-2) are fixedly connected to both sides of the medicine storage box (14). A fixed plate (14-14) is fixedly installed in the medicine storage box (14), and the fixed plate (14-14) passes through the plurality of medicine storage spaces (14-3). A plurality of small circulation pumps (14-4) are fixedly installed on the fixed plate (14-14), and the output end of each small circulation pump (14-4) passes through the fixed plate (14-14) and is connected to the bottom of the fixed plate (14-14). The spaces are connected, a mounting frame (14-5) is fixedly connected between the inner walls of both sides of the medicine storage box (14), the mounting frame (14-5) is arranged below the fixed plate (14-14), a plurality of second electromagnetic blocks (14-6) are fixedly installed on the mounting frame (14-5), the second electromagnetic blocks (14-6) are arranged in the corresponding medicine storage space (14-3), each second electromagnetic block (14-6) is sleeved with a third spring (14-7), the top end of the third spring (14-7) is fixedly connected to the bottom end of the mounting frame (14-5), the bottom end of the third spring (14-7) is fixedly connected to the top end of the corresponding third blocking block (13-6), and the inner bottom surface of the medicine storage box (14) is fixedly connected to the inner bottom surface of the medicine storage box (14). A plurality of dovetail grooves (14-9) are provided, each dovetail groove (14-9) is provided in a corresponding medicine storage space (14-3), a dovetail block (14-10) is slidably connected in each dovetail groove (14-9), a top end of each dovetail block (14-10) is fixedly connected to an arc baffle (14-11), a plurality of meshing teeth are fixedly installed on the outer arc wall of the arc baffle (14-11), a plurality of gears (14-12) are rotatably connected to the inner bottom surface of the medicine storage box (14), each gear (14-12) is respectively meshed with the meshing teeth on the outer arc wall of the corresponding arc baffle (14-11), and a rack (14- 13), the bottom end of the rack (14-13) is fitted with the inner bottom surface of the medicine storage box (14), and the rack (14-13) is respectively meshed with multiple gears (14-12), and the two ends of the rack (14-13) respectively extend into the corresponding third fixed cylinder (14-1) and the fourth fixed cylinder (14-2), a third electromagnetic block (14-16) is fixedly installed on the inner wall of one side of the third fixed cylinder (14-1), and a fourth spring (14-15) is fixedly connected to the inner wall of one side of the fourth fixed cylinder (14-2), one end of the fourth spring (14-15) is fixedly connected to the end of the rack (14-13), and the fourth spring (14-15) is a tension spring.

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