53results about How to "Improve the efficiency of spraying operations" patented technology

The invention discloses an optimization method for the thickness uniformity of irregular planes and polygonal coating layers by an electrostatic spraying robot. Firstly, a spraying gun trajectory mathematical model is built; then, a space distribution model of paint, a translation schematic diagram of a static-state distribution model and a section thickness chart of a translation model are built;according to comparison with data obtained by a double-variable Cauchy distribution model, a double-variable Gaussian distribution model and an offline experience, a traditional elliptical double-beta model is finally built; and finally, the spraying joint is performed for multiple times of spraying, that is, the thickness uniformity of paint films is improved through selection of a gap d betweentravels.

The invention discloses a kresoxim-methyl and pyrimethanil compound fungicide composite fumigant and an application of the fumigant. The kresoxim-methyl and pyrimethanil compound fungicide composite fumigant is characterized by comprising pyrimethanil and kresoxim-methyl, wherein the weight ratio of pyrimethanil to kresoxim-methyl is (8 to 1)-(1 to 5). According to the optimization scheme, kresoxim-methyl and pyrimethanil account for 0.1-60wt% of the fumigant in total. By virtue of the kresoxim-methyl and pyrimethanil compound fungicide composite fumigant, the same effect can be achieved by only using 1 / 2-2 / 3 of active ingredients of other preparations of the same pesticide; the pesticide is saved; the fumigant is high in effect, low in residues and safe to use; the most direct beneficial effect on the agricultural production is that the application cost per mu is reduced and the excellent prevention and treatment effect is achieved.

The invention provides a mobile device-based spraying control method, which comprises the following steps: acquiring a point cloud image in front of the moving direction of the mobile device; determining communication area information in front of the moving direction based on point cloud information in the point cloud image, the communication area information including communication area positioninformation and communication area information; determining the area information to be worked according to the connected area information, wherein the area information to be worked comprises the areainformation to be worked and the area information of the area to be worked; determining the spraying control information according to the position information of the area to be worked and the area information of the area to be worked, so as to instruct the mobile device to spray the target object in the area to be worked. The invention solves the problem of spraying the ground objects between crops in the flying process of the unmanned aerial vehicle, avoids wasting the sprayed objects in the spraying process of the unmanned aerial vehicle, reduces the economic cost, and improves the operationefficiency of the unmanned aerial vehicle.

The invention provides a plant protection unmanned aerial vehicle system and a plant protection unmanned aerial vehicle operation method. The plant protection unmanned aerial vehicle system comprisesan image acquisition device, an operation planning device and a plant protection device. The image acquisition device is used for conducting image acquisition and recognition on crop objects, generating image information and sending the image information to the operation planning device. The operation planning device is used for conducting data analysis and route planning according to the image information, generating the optimal operation route and sending the optimal operation route to the plant protection device. The plant protection device is used for conducting plant protection operationon the crop objects according to the optimal operation routes. Under reasonable cooperation of the image acquisition device, the route planning device and the plant protection device, the spraying operation efficiency of the plant protection unmanned aerial vehicle is improved.

The invention discloses a multi-rotor plant-protection unmanned aerial vehicle with an ultra-wide spraying width, and relates to the fields of multi-rotor unmanned aerial vehicle systems and unmannedaerial vehicle agricultural plant protection technologies. The multi-rotor plant-protection unmanned aerial vehicle comprises a frame, a flight control system used for controlling flying of the unmanned aerial vehicle, a liquid pesticide spraying system used for spraying a liquid pesticide, and a plurality of first rotors which are arranged on the frame and used for controlling movement and postures of the unmanned aerial vehicle, and also comprises a power supply system used for supplying power for the unmanned aerial vehicle, and a landing chassis system used for supporting the unmanned aerial vehicle to be placed on the ground, wherein the frame comprises an ultra-long keel rod, and the liquid pesticide spraying system comprises a plurality of spray heads which are arranged at the lowerpart of the ultra-long keel rod in a straight-line shape along the length direction of the ultra-long keel rod to realize spraying of the liquid pesticide with ultra-wide spraying width and improve spraying efficiency; moreover, the multi-rotor plant-protection unmanned aerial vehicle also comprises a plurality of second rotors which are arranged at the upper part of the ultra-long keel rod and can generate constant elevating force, wherein the plurality of rotating second rotors can generate a downwash airflow wind field matching with the flow field of the liquid sprayed from the plurality of spray heads to improve spraying uniformity and permeability of the liquid pesticide and enhance spraying effects.

The invention discloses a hot fogging concentrate containing tebuconazole and triazophos, and a preparation method and application thereof. The hot fogging concentrate containing tebuconazole and triazophos comprises the following raw materials in percentage by mass: 3-20% of tebuconazole, 15-35% of triazophos, 5-30% of solvent, 1-15% of surfactant, 0.1-5% of thickener, 1-8% of hot fog density regulator, 1-8% of antifreezing agent, 0.1-1% of defoaming agent and the balance of water. The preparation method comprises the following steps: dissolving the effective components tebuconazole and triazophos in the solvent to prepare an oil phase, dissolving other auxiliary materials in water to prepare a water phase, and finally, evenly mixing the oil phase and the water phase to obtain the hot fogging concentrate containing tebuconazole and triazophos. The hot fogging concentrate disclosed by the invention is a broad-spectrum disinsection composition, and is used for preventing and treating plant diseases and pests when being matched with a hot fog machine. The invention has the advantages of high application efficiency, favorable effect and low environmental pollution, is applicable to low-straw plants, such as cotton, sunflower, corn, sorghum, wheat and the like, and can greatly alleviate the contradiction between the lack of labor force and the difficulty in preventing and controlling the crop diseases and pests in the medium and later periods in the countryside at present.

The invention discloses a surface spraying device for composite door manufacturing. The surface spraying device for composite door manufacturing comprises spraying nozzles, a composite door body, a spraying box, a spraying chamber, a lower fixed hook, pull rings, a guide post I, a screw rod I, a side shell I, a movable seat I, connectors, hoses, an upper shell, a driven pulley, a belt, a motor, adriving pulley, a screw rod II, a side shell II, an upper fixed hook, a guide post II and a movable seat II. The surface spraying device for composite door manufacturing is reasonable and simple in structure, low in production cost, convenient to install and complete in function. Firstly, the pull rings are fixed to technological threaded holes in the upper and lower surfaces of the composite doorbody, then the pull rings are tightly hooked in the lower fixed hook and the upper fixed hook, and thus it is guaranteed that the composite door body is in a vertical position and spraying is conveniently conducted through the praying nozzles. During spraying, paint enters the spraying nozzles through the connectors and the hoses, the left and right surfaces of the composite door body are sprayedsimultaneously, and thus spraying efficiency is greatly improved.

The embodiment of the invention discloses a spraying operation method and system. The method comprises the steps that a control module of at least one spraying link obtains data information and / or sharing information, the data information is sent by working equipment corresponding to the control module, and the sharing information is read by the control module from an information sharing management platform; the control module determines process control information of a corresponding spraying link according to the data information and / or the sharing information, and sends the data informationand / or the process control information to the information sharing management platform as the sharing information; and the control module controls the corresponding working equipment to execute the working process according to the process control information. According to the technical scheme, the problem that all spraying operation links cannot coordinate with one another is solved, and the effectof improving the spraying operation efficiency is achieved.

The invention discloses a hot fogging concentrate containing propiconazole and chlorpyrifos and a preparation method thereof. The hot fogging concentrate comprises the following raw material components in percentage by weight: 10 to 50 percent of chlorpyrifos, 1 to 20 percent of propiconazole, 5 to 30 percent of solvent, 1 to 15 percent of surface active agent, 0.1 to 5 percent of thickening agent, 1 to 8 percent of hot fogging concentrate density regulator, 1 to 8 percent of freeze proof agent, 0.1 to 1 percent of antifoaming agent, and the balance of water. The prepared hot fogging concentrate of the invention is a broad-spectrum sterilization and desinsection composition and is used with a hot fogging device for preventing and treating plant diseases and pests, has high application efficiency and good drug effect, is suitable for the middle and low stalk plants such as rapes, corns, wheat and the like, has less environment pollution, can also reduce the labor intensity of the operators and reduce contamination risk, and can completely solve the water using problem of preventing and treating plant diseases and pests in the water-deficient area.

The invention relates to a metal spray marking plate special for cold and hot rolling. The metal spray marking plate special for the cold and hot rolling comprises a number plate engraved with numbers, base plates and chain shaft components used for connecting adjacent base plates. Each base plate is a frame shaped like a Chinese character 'ri'. Reverse T-shaped through grooves and inner grooves oppositely formed inwards are formed in the two sides of each frame. Two sides of the number plate is inserted in two groove openings of the base plate. The chain shaft components comprise a double-row connecting shaft, groove seats and a mandril. The double-row connecting shaft is provided with a connecting portion. The middle segment of the mandril penetrates through the double-row connecting shaft. Two ends of the mandril are respectively penetrate through circular holes of the groove seats. An end head of the mandril is riveted on one groove seat. The groove seats are arranged in the reverse T-shaped through grooves of the base plate. The shape of the lower portion of each groove seat is matched with that of each through groove. The groove seats are capable of rotating around the mandril. The metal spray marking plate special for the cold and hot rolling can be cleaned by organic solution so as to be reused after using and therefore cost is effectively saved. Due to the fact that the metal spray marking plate spares a number imprinting process, spraying and coating work efficiency is improved and optimized.

The invention discloses a control system for a spraying robot and a control method, and relate to the field of mine laneway spraying. The control system comprises a power supply module, a control module, an interaction module, a detection module and a communication operation module, wherein the power supply module is used for supplying power to a whole electrical control system and a spraying robot body, the control module is used for controlling the spraying robot body, the output port of the control module is connected with the input port of the interaction module and the input port of the detection module, the spraying robot body comprises a vehicle body and a mechanical arm arranged on the vehicle body, the action of the mechanical arm is controlled by the control module, and the communication operation module is in communication connection with the control module through radio signals. The system can replace manual spraying operation, the labor intensity of workers and harm to human bodies are reduced, the spraying operation is standardized, the spraying operation efficiency is improved, and therefore the overall efficiency of tunneling, anchoring, supporting and spraying in an underground coal mine is improved, and the closed construction requirements of ultra-large workloads and large roadways can be met.

The invention discloses a net type aerial fog rectifying device of a plant protection unmanned aerial vehicle and an operation method thereof. The net type aerial fog rectifying device comprises a bracket, an electric control system and an aerial fog rectifying mechanism. Spraying equipment is mounted on an unmanned aerial vehicle; the bracket is connected with a foot stool of the unmanned aerialvehicle; the electric control system comprises a power supply, an electric control box, a control unit, a plurality of gyroscopes and an actuator; the electric control box is arranged on a top surfaceof the bracket, the power supply and the control unit are arranged in the electric control box, the actuator is arranged on the bottom surface of the bracket, the control unit is electrically connected with the actuator, the gyroscopes are symmetrically arranged on the bracket by taking a symmetric center of a rotor wing of the unmanned aerial vehicle as a center, and the gyroscopes are electrically connected with the control unit; and the aerial fog rectifying mechanism comprises a sleeve, a telescopic main rib, a plurality of telescopic supporting rods, a plurality of sensors and a rectifying net cover, the actuator is used for controlling overturning of the sleeve, stretching and retracting of the telescopic main rib and stretching and retracting, lifting and rotating of the telescopicsupporting rods, and the power source supplies power to the control unit, the actuator, the telescopic main rib, the telescopic supporting rods and the rectifying net cover.

The invention discloses a pumping and cyclone conveying combined concrete spraying machine and a spraying method thereof. The combined pumping and cyclone conveying concrete spraying machine comprisesa pumping system and a cyclone conveying system. The pumping system comprises a concrete pumping machine and a material pumping pipe. The cyclone conveying system comprises a threaded cyclone pipe, aconveying pipe, an air delivering pipe and a nozzle. A spiral inner groove is machined in the inner side of the threaded cyclone pipe and used for controlling airflow rotation. An air inlet pipe is welded to the pipe wall of one side of the threaded cyclone pipe. A certain angle is formed between the axis direction of the air inlet pipe and the axis direction of the threaded cyclone pipe. The airinlet pipe is connected with the air delivering pipe. The threaded cyclone pipe and the nozzle are connected through the conveying pipe to constitute the cyclone conveying system. The concrete pumping machine and the cyclone conveying system are connected through the material pumping pipe so that combined conveying of concrete can be achieved. According to the pumping and cyclone conveying combined concrete spraying machine and the spraying method thereof, the advantages of high material supplying speed and even materials of the pumping system and the advantages of large cyclone conveying distance, no pipe plugging and no pipe washing are combined, and the problems that as for an existing pumping wet spraying machine, pipe plugging is liable to occur, and the construction process is complex are effectively solved.

The invention relates to a mobile pneumatic paint mixing device, which comprises a mobile equipment, a paint barrel, a pneumatic motor, a stirring impeller, a filtering plate, a rotating shaft, a paint straw and an upright post. The invention solves the problem of paint mixing during the continuous spraying operation of large castings, the paint can be continuously stirred during the spraying process by using the device to prevent the paint precipitating, so that the efficiency of spraying operation is greatly improved, and the quality of spraying is ensured. Besides, the invention has the advantages of free movement, small space occupation, convenient placing and management and long service life.

The invention relates to the technical field of equipment identification spraying, and particularly discloses an electric transmission line tower identification spraying device which is used for improving the electric transmission line tower identification spraying operation efficiency. The device comprises a horizontal guide rail, a vertical guide rail, a first driving unit, a second driving unit and a spray head. The first driving unit is slidably connected with the horizontal guide rail; the second driving unit is slidably connected with the vertical guide rail; the vertical guide rail is fixedly connected with the first driving unit; and the spray head is fixed on the second driving unit. The spray head used for spraying is fixed to the second driving unit, the second driving unit can move in the vertical direction along the vertical guide rail, meanwhile, the vertical guide rail can move in the horizontal direction under the driving of the first driving unit, and in other words, the spray head can move in any direction on a plane and is close to an electric transmission line tower to be sprayed. A pattern needing to be sprayed is used as the motion trail of the spray head for spraying, and then a corresponding electric transmission line tower identification can be obtained.

The invention discloses a plant protection unmanned aerial vehicle for fruit tree spraying work. The plant protection unmanned aerial vehicle comprises an unmanned aerial vehicle body, a first paddlearm, a second paddle arm, a third paddle arm, a fourth paddle arm, a machine frame and a medicine box, wherein the machine frame is located below the unmanned aerial vehicle body, a first thermal atomizing unit is arranged below the first paddle arm, a second thermal atomizing unit is arranged below the second paddle arm, a third thermal atomizing unit is arranged below the third paddle arm, a fourth thermal atomizing unit is arranged below the fourth paddle arm, and the first thermal atomizing unit, the second thermal atomizing unit, the third thermal atomizing unit and the fourth thermal atomizing unit have the same structure. According to the plant protection unmanned aerial vehicle for fruit tree spraying work, by utilizing the structure, heat generated by the thermal atomizing units is absorbed by virtue of spiral heat conducting pipes, and then liquid in the spiral heat conducting pipes is atomized, so that the operation is continuous and stable, the noise in the working processof the plant protection unmanned aerial vehicle can be lowered, and the efficiency of the spraying work is improved.

The invention discloses an agricultural spraying device of a helicopter. A charging port is formed behind the upper surface of a water tank. An outlet of an electric centrifugal pump is connected with an inlet of a three-way magnetic valve, and an outlet formed in one end of the three-way magnetic valve is connected with a backflow connector I and a backflow connector II on the water tank through a backflow hose I and a backflow II to form a backflow pipeline. An outlet formed in the other end of the three-way magnetic valve is connected with a filter installed on a middle spraying rod through a spraying hose to form a spraying pipeline. A balancing tank is installed in the water tank, an emergency throw-releasing valve is installed on the lower surface of the water tank, and a throw-releasing actuator and the electric centrifugal pump are installed at the front end of the water tank. A pressure controller and a control handle are connected to the electric centrifugal pump, the three-way magnetic valve and the throw-releasing actuator respectively through a control box. The agricultural spraying device has the advantages of having spraying, stirring, emergency throw-releasing and spraying pressure regulation functions and being simple in operation.

The invention provides a full-automatic paint spraying and drying line which comprises an equipment platform; a spraying chamber and a drying chamber are arranged on the equipment platform; a spraying manipulator is arranged corresponding to the spraying chamber; a workpiece jig in the spraying chamber is transferred to the drying chamber by the spraying manipulator; a rotary jacking device is arranged in the spraying chamber; the workpiece jig is installed on the upper portion of the rotary jacking device; the rotary jacking device comprises a base, a rotary driving mechanism, a lifting driving mechanism, a rotating assembly driven by the rotary driving mechanism and a lifting assembly driven by the lifting driving mechanism; and the lifting assembly comprises a supporting frame driven by the lifting driving mechanism to ascend and descend. According to the full-automatic paint spraying and drying line, a supporting frame is driven by the lifting driving mechanism to achieve a lifting action, a tray is driven by the rotary driving mechanism to rotate, then rotation of a workpiece is achieved, the position of a spray gun does not need to be adjusted frequently, and meanwhile, a paint layer can be dried more quickly through the drying chamber, so that the spraying operation efficiency is high, and the spraying quality is good.

The invention provides a full-automatic titanium pole plate spraying and sintering production line and an operating method thereof and relates to the technical field of spraying devices. A discharging port of a workpiece feeding zone of the full-automatic titanium pole plate spraying and sintering production line is connected with a feeding port of a plasma surface treatment zone, a discharging port of the plasma surface treatment zone is connected with a feeding port of a low-temperature preheating zone, a discharging port of the low-temperature preheating zone is connected with a feeding port of a spraying zone, a discharging port of the spraying zone is connected with a feeding port of a temperature rise zone, a discharging port of the temperature rise zone is connected with a feeding port of a high-temperature sintering zone, a discharging port of the high-temperature sintering zone is connected with a feeding port of a cooling zone, and a discharging port of the cooling zone is connected with a feeding port of a workpiece discharging zone. The technical problem of low spraying efficiency of a manual spraying mode in the prior art is solved. A conveying line body is provided with the feeding zone, the plasma surface treatment zone, the low-temperature preheating zone, the spraying zone, the temperature rise zone, the high-temperature sintering zone, the cooling zone and the discharging zone, and the spraying efficiency is high.

The embodiment of the invention discloses a spraying operation method and system. The method includes: the control module of at least one spraying link acquires data information and / or shared information, wherein the data information is sent by the working equipment corresponding to the control module, and the shared information is shared by the control module from information The management platform reads; the control module determines the process control information corresponding to the spraying link according to the data information and / shared information, and sends the data information and / or process control information as shared information to the information sharing management platform; The control module controls the corresponding working device to execute the working process according to the process control information. The technical solution of the embodiment of the present invention solves the problem that various spraying operation links cannot be coordinated with each other, and realizes the effect of improving the efficiency of spraying operation.

The invention provides a pneumatic spray gun and belongs to the technical field of spray guns, the pneumatic spray gun comprises a spray gun main body and a fixing frame, a material conveying pipe is arranged on one side of the outer surface of the spray gun main body, a material storage tank is arranged on one side of the material conveying pipe, the end, away from the spray gun main body, of the material conveying pipe is located in the material storage tank, and a liquid level sensor is arranged on the inner wall of the material storage tank; and a liquid inlet guide pipe is arranged above the liquid level sensor. The clamping blocks can be fixedly clamped into the clamping grooves, the fixing frame can be fixedly clamped to the spray gun body, and then the length of the first telescopic rod and the length of the second telescopic rod can be adjusted till the multiple rolling wheels in the supporting plate make parallel contact with the wall face, and the spraying area of the spray gun body is not affected; and at the moment, the spray gun main body and the wall surface can be kept at a constant distance for spraying operation only by enabling the plurality of rollers in the supporting plate to roll on the wall surface in parallel all the time, so that the spray gun has a constant-distance spraying operation function.

The invention discloses a spraying machine, and belongs to the field of waterproofing project appliances. The spraying machine comprises a material producing barrel, a stirring blade is arranged in the material producing barrel, an extrusion pump used for extruding slurry is arranged on the lower portion of the material producing barrel, and a discharging pipe communicates with the extrusion pump;the discharging pipe is connected with a spray gun used for spraying waterproofing coating, a feeding box is connected to the discharging pipe, and the discharging pipe is divided into a material supplementing pipe body and a material spraying pipe body; and the material spraying pipe body is located between the feeding box and the spray gun so that the spraying machine can spray the waterproofing coating while stirring the waterproofing coating, and therefore the working efficiency of the spraying machine is higher.

The invention discloses an agricultural machine chassis of an elevated structure, and relates to agricultural machinery. The chassis of the structure can be used for hanging various agricultural machine tools and carrying out production operation special for high-plant crops. Vertical pipes (4) and a hydraulic steering mechanism are arranged in front of a chassis body (1), and elevated vertical legs (6) and a transmission mechanism are arranged in back of the chassis body (1). The hydraulic steering mechanism is composed of a front wheel connection frame (7), a vertical shaft (8), a steering support arm (9), a steering connection rod (10) and a steering hydraulic cylinder (11). The transmission mechanism comprises a chain (12) and a transmission gear (13). A machine head (2) can be fixed to rear wheels (5) at the lower ends of the elevated vertical legs (6) to rotate under the driving effect of the chain (12) and the transmission gear (13). The agricultural machine chassis has the advantages of being reasonable in design, small in size, simple in structure, low in manufacturing cost, high in spraying operation efficiency and the like.

The invention relates to a metal spray marking plate special for cold and hot rolling. The metal spray marking plate special for the cold and hot rolling comprises a number plate engraved with numbers, base plates and chain shaft components used for connecting adjacent base plates. Each base plate is a frame shaped like a Chinese character 'ri'. Reverse T-shaped through grooves and inner grooves oppositely formed inwards are formed in the two sides of each frame. Two sides of the number plate is inserted in two groove openings of the base plate. The chain shaft components comprise a double-row connecting shaft, groove seats and a mandril. The double-row connecting shaft is provided with a connecting portion. The middle segment of the mandril penetrates through the double-row connecting shaft. Two ends of the mandril are respectively penetrate through circular holes of the groove seats. An end head of the mandril is riveted on one groove seat. The groove seats are arranged in the reverse T-shaped through grooves of the base plate. The shape of the lower portion of each groove seat is matched with that of each through groove. The groove seats are capable of rotating around the mandril. The metal spray marking plate special for the cold and hot rolling can be cleaned by organic solution so as to be reused after using and therefore cost is effectively saved. Due to the fact that the metal spray marking plate spares a number imprinting process, spraying and coating work efficiency is improved and optimized.

The invention discloses a spraying machine, and belongs to the field of waterproofing project appliances. The spraying machine comprises a material producing barrel, a stirring blade is arranged in the material producing barrel, an extrusion pump used for extruding slurry is arranged on the lower portion of the material producing barrel, and a discharging pipe communicates with the extrusion pump;the discharging pipe is connected with a spray gun used for spraying waterproofing coating, a feeding box is connected to the discharging pipe, and the discharging pipe is divided into a material supplementing pipe body and a material spraying pipe body; and the material spraying pipe body is located between the feeding box and the spray gun so that the spraying machine can spray the waterproofing coating while stirring the waterproofing coating, and therefore the working efficiency of the spraying machine is higher.

The invention discloses a net-type aerosol rectification device for a plant protection drone and an operation method thereof, including a bracket, an electric control system and an aerosol rectification mechanism; spraying equipment, a bracket and a tripod of the drone are installed on the drone Connection, the electric control system includes power supply, electric control box, control unit, multiple gyroscopes and actuators, the electric control box is installed on the top surface of the bracket, the power supply and control unit are set in the electric control box, and the actuator is installed in the bracket The bottom surface of the frame, the control unit is electrically connected with the actuator, and a plurality of gyroscopes are symmetrically installed on the bracket with the center of symmetry of the UAV rotor as the center, and the plurality of gyroscopes are electrically connected with the control unit; the aerosol rectifier The mechanism includes a sleeve, a telescopic main bone, a plurality of telescopic struts, a plurality of sensors and a rectifying net cover. The actuator is used to control the flipping of the sleeve, the expansion and contraction of the telescopic main bone, and the telescopic, lifting and rotation of the telescopic strut. The power supplies are respectively Powers the control unit, actuators, telescoping backbone, telescoping struts and fairing grille.

The invention provides an electromagnetic valve for a plant protection unmanned aerial vehicle, a spraying system and an air exhaust method. The electromagnetic valve comprises a valve element assembly, an adjusting assembly and an electromagnetic assembly. The adjusting assembly is arranged between the valve element assembly and the electromagnetic assembly. The adjusting assembly comprises a fixing shell, a driving gear, a rotating wheel, a connecting shaft and a first spring. The driving gear and the rotating wheel are arranged inside the fixing shell, the two ends of the rotating wheel abut against the driving gear and the valve element assembly correspondingly, and the two ends of the driving gear abut against the rotating wheel and the electromagnetic assembly correspondingly. One end of the connecting shaft abuts against the rotating wheel, and the other end of the connecting shaft abuts against the driving gear. The first spring sleeves the driving gear. The electromagnetic assembly is powered on and off, the adjusting assembly can be pushed to move so as to drive the valve element assembly to move, and therefore the electromagnetic valve can be located in an open or closedstate. The electromagnetic valve is low in power consumption and can be applied to the plant protection unmanned aerial vehicle spraying system, and the spraying operation efficiency is improved.