49results about How to "Large spray" patented technology

The invention discloses an upward-anticyclone UAV (unmanned aerial vehicle) pesticide sprayer comprising a support, a control unit, a propeller and a pesticide box. N supporting rods are symmetrically and evenly fixed around the support. A supporting base is fixed above the upper ends of the supporting rods. A propeller motor is mounted on the supporting base. The propeller is provided above a motor. The outer ends of at least two of the supporting rods are provided with spray rods which are adjustable, below the propeller. A nozzle is mounted on the lower portion of each spray rod and linearly mounted on the spray rod. The included angle a made by the axes of every spray rod and the propeller is 30 to 45 degrees. The upward-anticyclone UAV pesticide sprayer has the advantages that after sprayed out of the nozzles, pesticide particles are not directly sprayed to the ground but brought outside by air to the top of the propeller, pesticide is sprayed up and rotated down and is sprayed in parabolic curves, mists are evenly distributed by the air generated by the propeller and can be sprayed wider, spraying uniformity is guaranteed, and pesticide effect is greatly improved.

The invention relates to a foldable multi-rotor plant protection unmanned aerial vehicle, which comprises a machine body, a plurality of machine arms and rotors arranged on the machine arms, wherein the machine arms comprise a first machine arm and a second machine arm located on the same straight line; the first end of the first machine arm is connected with the machine body; the second end of the first machine arm is rotatably connected with one end of the second machine arm. The second machine arm and the first machine arm can be placed foldably, so that the space occupied by the unmanned aerial vehicle is reduced, and the convenience in transportation, conveyance and maintenance are realized.

The invention relates to a coating device for large-area wall advertisements, propagandas and under colors of posters, and discloses a coating machine for wall coatings, which comprises a main board;the inner lateral surface of the main board is fixed with a tubular main nozzle piece; the front of the main nozzle piece is provided with a nozzle; the rear of the main nozzle piece is provided witha feed pipe passing through the main board; two ends of the main nozzle piece are enclosed by end caps; and outer end faces of the end caps are provided with liquid baffle plates. The coating machineis provided with the liquid baffle plates to ensure neat edges of the coating, can be provided with a plurality of additional nozzle pieces to achieve wide spraying amplitude, and is provided with rollers to ensure labor-saving spraying and quick spraying. The coating machine is suitable for coating various coatings, and has wide application, simple structure, light weight because parts are made of light materials such as plastics and the like, and convenient operation and carrying.

The invention relates to an amphibious unmanned aerial vehicle. The amphibious unmanned aerial vehicle comprises a vehicle body, a plurality of vehicle arms arranged on the vehicle body, rotor wings arranged on the vehicle arms, a bracket and buoys. The bracket is arranged under the vehicle body and used for supporting the vehicle body. The buoys are horizontally arranged on the bracket, and the positions of the lower peripheral surfaces of the buoys are lower than the lowermost end of the bracket so that the unmanned aerial vehicle can float on water through the buoys. The amphibious unmanned aerial vehicle can take off and land on both land and water, and the flight adaptability is greatly improved.

The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a plant protection unmanned aerial vehicle. The vehicle includes a fuselage, arms, a rotor, a nozzle and a support frame connecting the arms and the fuselage, the two arms are arranged in parallel, the two arms are respectively disposed on the front side and the rear side of the fuselage, the support frame includes two first connecting brackets arranged in parallel and two mutually parallel second connecting brackets with two ends respectively vertically connected with the first connecting brackets, the two first connecting brackets are respectively located on the left and right sides of the fuselage, the two ends of the first connecting brackets are respectively connected to the two arms,and the second connecting brackets penetrate through the fuselage and are fixedly connected to the fuselage. According to the plant protection unmanned aerial vehicle, the arms and the fuselage are connected through the support frame, the fuselage is fixed on the support frame, the overall structure of the unmanned aerial vehicle is stable, thereby reducing the influence on the measurement accuracy of a sensor in the fuselage, the flight stability of the unmanned aerial vehicle is improved, the spray width is large, and the operation needs of modern plant protection are met.

The invention discloses a nested clingy flagpole painting device capable of adjusting climbing pressure. The structure of the nested clingy flagpole painting device comprises a paint spray, guiding pipes, a climbing device, a supporting base, and a clamping device, the guiding pipes are arranged on the two sides of the paint spray in a nested mode, and the lower end surface of the climbing devicefits the upper surface of the supporting base. The nested clingy flagpole painting device has the beneficial effects that under the function of a painting ring, once painting is only needed, the phenomenon of re-painting through multiple painting can be avoided; under the function of a stabilizer, drying can be conducted while painting is conducted, scratching is avoided; under the function of a height controlling gauge, the flagpole painting device is cooperated with the height, the painting force can be increased while the painting amount can be automatically reduced, and the stabilizer is attached to the outer surface of the upper end of a flagpole; and under the function of the clamping device, a torsion shrinkage device of the flagpole painting device can be tightly attached to the outer surface of the flagpole according to the diameter of the flagpole, the flagpole is prevented from shaking in the painting process under the influence of the wind, and the stability of the paintingis improved.

The invention relates to a crawler-type automatic insecticide spraying machine. According to the technical scheme, bearing seats are fixed on inner sides of the front end and the rear end of a left walking crawler and on inner sides of the front end and the rear end of a right walking crawler; rotating shafts are mounted on the bearing seats; screw rods which are coaxially arranged are connected with the upper ends of the rotating shafts; the screw rods are sleeved by threaded sleeves which are rotated and lifted in an axial direction of the screw rods; a fixing frame is connected between a front transverse beam and a rear transverse beam in a sleeved manner; the rotating shafts are driven by motors to rotate to drive the screw rods to rotate, and then the threaded sleeves are driven to slide up and down along the axial direction of the threaded sleeves; a water tank, a power supply, a water pump and a controller are respectively arranged inside the fixing frame; and a first sprayer and a second sprayer are respectively mounted on two screw rods at the rear ends of the left walking crawler and the right walking crawler. The crawler-type automatic insecticide spraying machine is light in weight, large in contact area with the ground in the walking process, harmless to crop root systems in the walking process, small in atomized water droplet particle size, relatively wide in covering range under blowing of wind, and large in spraying width, that is, the spraying width is up to 30-40 meters, an insecticide liquid can be sucked to plant leaves, the amount of an insecticide canbe reduced, and high insecticide spraying efficiency is achieved.

The invention discloses a double-part support rotary micro-sprinkler. The double-part support rotary micro-sprinkler comprises a support, a rotary body and a nozzle, wherein the support is a double-part support, a positioning hole is formed in the upper end of the support, and a sleeve is arranged at the lower end of the support; the rotary body comprises a water inlet hole, a water diversion baffle, runners and a rotary shaft which are designed in sequence from bottom to top; and the runners include the first runner and the second runner, the elevation of the first runner is larger than that of the second runner, the first runner and the second runner each have an deflection angle, and the deflection angle of the first runner is smaller than that of the second runner. The double-part support rotary micro-sprinkler has the advantages that the sprinkling radius is large, sprinkling is uniform, and the effect that in a certain pressure range, support deformation caused by high pressure does not occur, and rotation of the rotary body is not affected is achieved; the micro-sprinkler is convenient and fast to mount and dismount; due to large sprinkling width, the number of sprinklers adopted per mu on average is small, and first-time investment cost of micro-irrigation projects is reduced; and sprinkling is uniform in the sprinkling width direction, so that moisture and nutrients obtained by crops are uniform, the growing vigor is uniform, and high-yield and high-quality agricultural products can be easily achieved.

The invention discloses a workpiece sandblast apparatus and a method thereof. The sandblast apparatus comprises a sandblast case and a bottom rack, the bottom support comprises supporting legs and anoperation platform, the sandblast case is arranged over the bottom support, several sand outlets are uniformly distributed at the operation platform, a sand-collection case is arranged below the operation platform, the sand-collecting case is fixedly connected at a drawing fan at the bottom support through an exhausting pipe, a sandblast component is arranged at an inner chamber of the sandblast case, the sandblast component comprises a hand-held part, a spray gun and an air pipe, the spray gun is arranged at the lower end of the hand-held part, the upper end of the hand-held part is connectedand arranged at an air pump of the bottom support through the air pipe, the air pipe, is communicated with a sand-storage case through a branch pipe, a treading controller is arranged at the bottom of the supporting leg, and the treading controller is electrically connected with the air pump. The workpiece sandblast apparatus has the advantages of simple structure principle, realizes efficient and uniform sandblast on the workpiece, and the employed spray gun has the advantages of large strength and long service life.

The invention relates to a liftable water-fertilizer integrated system based on micro-spraying hose irrigation. The liftable water-fertilizer integrated system comprises a water supply device, an irrigation pipeline system, a hanging and lifting system and a water-fertilizer automated control system, wherein the irrigation pipeline system comprises a main water conveying pipeline, a filter, branch pipelines and bilateral broadside micro-spraying hoses; the main water conveying pipeline is connected with the branch pipelines; the hanging and lifting system comprises a pillar, a lifting steel rope, a steel rope winch wheel, a lifting sliding block, a pulley block and the like, and the bilateral broadside micro-spraying hoses are hung on the pillar; and the water-fertilizer automated control system comprises a programmable logic controller, a variable flow rate fertilizer injector and the like. The liftable water-fertilizer integrated system provided by the invention can regulate the spray irrigation starting sequence and the duration of each of the bilateral broadside micro-spraying hoses on the branch pipelines, simultaneously regulate the fertilizer injection flow rate of the fertilizer injector, maintain appropriate micro-spray irrigation water pressure, ensure the uniformity in irrigation and simultaneously realize automated and precise management of fertilizer and water.

The invention discloses a rotation type foam fire suppression device which comprises a main cavity body, wherein a plurality of water outlet pipes are arranged outside the main cavity body in an annular mode, a center hole of the main cavity body is connected with a water inlet pipe, the water inlet pipe is communicated with the water outlet pipes, the water inlet pipe and the main cavity body are arranged in a rotating mode through a plane thrust ball bearing, a press cover is arranged outside the plane thrust ball bearing in a press-fit mode, a groove is formed at the opening position of a boss of the water inlet pipe, an O-shaped ring is installed in the groove in a sleeved mode, a thread hole is formed in the side wall of the main cavity body, and the water outlet pipes and the thread hole are connected. According to the rotation type foam fire suppression device, a sprayer can rotate automatically, spraying range is wide, fire suppression efficiency is high, and operation is flexible and convenient.

The invention relates to the technical field of agriculture, in particular to a portable spraying machine. The problems that existing pressing type spraying equipment and manual spraying are short in spraying range, small in spraying size and low in work efficiency are solved. The portable spraying machine comprises a high pressure fan, an ejector, a hose, a manual valve, a first mixing cavity, a first air inlet pipe and a back bucket. The ejector comprises a receiving chamber, a mixing chamber and a diffusion chamber. The receiving chamber of the ejector is communicated with an air outlet of the high pressure fan. The side wall of the mixing chamber is fixedly connected with a connector communicated with the mixing chamber. One end of the hose is communicated with the connector. The other end of the hose is communicated with the first mixing cavity through the manual valve. A plurality of through holes are formed in the side wall of the first mixing chamber. The top end of the first mixing cavity is communicated with the air outlet end of the first air inlet pipe. The air inlet end of the first air inlet pipe is arranged outside the back bucket. The portable spraying machine is used for spraying of agriculture and forestry.

A pair of large propellers is used for constructing ''reversing propellers with a common rod'', rotating shafts of two propeller disks and a rod form an isoceles triangle, the lower surfaces of the two propeller disks are positioned at an arc line, and the length of the rod is longer than the diameter of the propeller disks; a pair of small propellers is used for constructing ''reversing propellers with a common shaft'', and the small propellers are made in the shape of arcs; through several carbon fiber tubes and connecting fixing pieces, the ''reversing propellers with a common rod'' and the ''reversing propellers with a common shaft'' form a four-rotor unmanned aerial vehicle structure which is in mirror symmetry in left and right and asymmetrical in front and back, and the rod is perpendicular to the shaft; the direction of downwash flow is the direction of an outward normal of cambered surfaces; therefore, the four-rotor agricultural unmanned aerial vehicle with the blades in cambered surface distribution is named. Compared with a four-rotor unmanned aerial vehicle with blades in the structure of horizontal distribution and central symmetry sold in the market, the four-rotor agricultural unmanned aerial vehicle with the blades in cambered surface distribution has the advantages that the flow rate of the downwash flow is effectively reduced, the area of the downwash flow is enlarged, crops are protected, and the working performance is improved.

The invention discloses lifting type sprinkling irrigation equipment with adjustable spraying force for planting fruit saplings. The lifting type sprinkling irrigation equipment comprises an equipmentcabinet, an additive inlet hopper, a water inlet pipe, a stirring servo motor, a stirring device, and a lifting type sprinkling irrigation device capable of automatically adjusting the spraying force, wherein the equipment cabinet is of a rectangular mechanism, the additive inlet hopper is arranged at the left upper part of the equipment cabinet and is connected with the equipment cabinet throughelectric welding, the water inlet pipe is arranged below the left side of the equipment cabinet and is in vertical through connection through electric welding. According to the sprinkling irrigationequipment, the spraying force can be automatically adjusted according to the height of a sprinkling irrigation head. When the sprinkling irrigation head rises, the resistance in the electromechanicalcircuit of a spray irrigation pump is reduced to increase the power of the pump machine, the spraying force is increased, and the spraying range of the equipment is enlarged. When the sprinkling irrigation head descends, the spraying force is reduced, the spraying force is prevented from being too large to push down the fruit seedlings or wash away the soil at the root of the fruit seedlings. Washing away the soil at the root of the fruit seedlings may cause the root of the fruit seedling to be exposed to affect the growth of the fruit seedlings. The fruit seedlings are effectively protected,and the practical performance of the equipment is enhanced.

The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a plant-protection unmanned aerial vehicle. The plant-protection unmanned aerial vehicle comprisesa machine body, an undercarriage, short machine arms and long machine arms, wherein the multiple short machine arms are arranged around the machine body, the two long machine arms are mutually parallel and are arranged on the front side and the back side of the machine body respectively, one ends of the short machine arms are fixedly connected on the machine body, and the other ends of the shortmachine arms are provided with first rotor wing assemblies and fixedly connected with the long machine arms; second rotor wing assemblies are arranged at the two ends of the long machine arms respectively, and sprinkling devices are arranged at the bottoms of all the rotor wing assemblies; a top support of the undercarriage is connected to the bottoms of the long machine arms. According to the plant-protection unmanned aerial vehicle, the whole structural arrangement is reasonable, multi-rotor-wing abnormal-shape arrangement is adopted, a load is large, and the whole strength of the machine body structure is guaranteed under the condition that the sprinkling width is increased; compared with a traditional multi-rotor-wing unmanned aerial vehicle, the sprinkling width is large under the equivalent load condition, the sprinkling efficiency is high, plant-protection operation time can be shortened, and the cost can be saved.

The invention relates to the field of desulfurization towers, and concretely relates to a coke oven gas desulfurization tower. The coke oven gas desulfurization tower comprises a shell, two observation mechanisms, a gas inlet tube, a driving mechanism, a spraying mechanism, a demisting mechanism, a protection mechanism and a water tank. The protection mechanism is fixed in the shell, and the protection mechanism prevents sulfur-containing flue gas from rising along the tower wall of the desulfurization tower and a sprayed circulating liquid from being sprayed on the tower wall, so obstructionof thick incrustation formed on the tower wall to the desulfurization tower is prevented; and spirals of a spiral tube included by the spraying mechanism are communicated through a communication, so the spiral tube is easily stabilized, the circulation of circulating water in the spiral tube is benefited, and the spraying force of the circulating water sprayed from nozzles is increased.

The invention belongs to the technical field of plant protection equipment and particularly relates to an inclined boom sprayer spraying system, comprising a rectangular lifting mechanism, a rectangular support, lifting cylinder I, an air speed sensor, lifting cylinder II, a boom nozzle device, a boom carrier device, an air curtain device and an air direction adjustment. Two balloons are mounted on the two sides of a boom carrier; air direction adjusting blades are mounted below the balloons; the angle of the air direction adjusting blades can be adjusted to change the jetting angle of an aircurtain; air flows can be present on the air curtain on both sides of the boom carrier, and one side has air flow while the other side has none; spraying height of a nozzle is adjustable.

The invention relates to a suspension lifting system of a broadside wire-laminated micro-spraying hose. The suspension lifting system comprises a broadside wire-laminated micro-spraying hose and a suspension lifting system. The broadside wire-laminated micro-spraying hose is divided into an one-side broadside wire-laminated micro-spraying hose and a dual-side broadside wire-laminated micro-spraying hose; the suspension lifting system comprises a supporting pillar, a lifting steel rope, a steel rope windlass wheel, a lifting slide block, a pulley and a telescopic supporting rod; the lifting slide block is moveably installed between two vertical plates of the supporting pillar; the broadside wire-laminated micro-spraying hose is installed on the lifting slide block; the lower side of the broadside wire-laminated micro-spraying hose is provided with the telescopic supporting rod. Through the lifting system, the paving height of a micro-spraying hose is adjusted; the lifting system can avoid torsion in the course of suspending and lifting; besides, the lifting system can effectively solve the problems of oblique spraying water flow and uneven irrigation for regular micro-spraying hose hung by a single steel wire and several sleeve buckles is easy to deviate at present.

The invention relates to a detachable multi-rotor drone for plant protection. The detachable multi-rotor drone comprises a drone body, a plurality of arms and rotors arranged on the arms, wherein the arms are detachably mounted on the drone body. The detachable multi-rotor drone has the advantages that the drone can be mounted and demounted fast, fast operation is facilitated greatly, and the requirements of transportation transition are satisfied.

The invention discloses a knapsack-type electric atomizing sprayer for plant protection. The knapsack-type electric atomizing sprayer comprises an impeller, a pesticide solution tank and a spray nozzle, wherein the impeller is arranged inside a fan shell body, an air outlet pipe is arranged on the fan shell body, an air inlet plug is arranged at the inner side of the air outlet pipe, the pesticide solution tank is arranged above the air outlet pipe, a filter screen is arranged on the pesticide solution tank, an air inlet pipe is connected between the air inlet plug and the filter screen, a solution outlet plug is arranged at the bottom of the pesticide solution tank, a solution delivery pipe is arranged on the solution outlet plug, a pesticide solution switch is arranged on the solution delivery pipe, a spray pipe is arranged on the fan shell body, the spray nozzle is arranged at the top end of the spray pipe, and the solution delivery pipe is connected to the spray nozzle. The knapsack-type electric atomizing sprayer has the beneficial effects that the spraying breadth is wide, the effect is high, the degree of automation is high, the structure is simple, the labor intensity is low, and the use is convenient.

The invention discloses a municipal sewage treatment device, which structurally comprises a drainage pipe, a water inlet pipe and a water outlet pipe, wherein the water inlet pipe is horizontally welded to the upper middle portion of the left side of the drainage pipe, the water outlet pipe is horizontally welded to the lower middle portion of the right side of the drainage pipe, the drainage pipeis provided with a filter element, a deslagging opening, a supporting block and a blocking mechanism, and the filter element is positioned in the drainage pipe. Due to the fact that urban accumulatedwater contains a large number of leaves, the leaves are light in weight and easily rotate around the filter element along with rotation of the filter element, leaves around the filter element are blocked and smashed through a blocking block in the blocking mechanism, rotation of the leaves around the filter element is reduced, the contact surface of the filter element and sewage is increased, andthe filter element is accelerated to filter the sewage in time. Due to the fact that the pressure of fed liquid is small, the deformation plate is driven to be changed and broken slowly, the diameterof a liquid inlet hole is reduced through swinging of a clamping plate in the liquid inlet hole, the spraying force of the liquid is increased, the deformation plate is accelerated to be driven to deform continuously, and the deformation plate drives an overhead plate to make contact with leaves continuously.

The invention relates to a single-side hangable micro-spraying hose irrigation system. The single-side hangable micro-spraying hose irrigation system comprises a single-side hangable micro-spraying hose, a water supply device, an irrigation pipeline system and a hanging and lifting system, wherein the water inlet end of the single-side hangable micro-spraying hose is connected with a branch pipeline through a quick joint; a main water conveying pipeline is connected with the water supply device; and the hanging and lifting system comprises a plurality of pillars, a lifting steel rope, a steel rope winch wheel, a lifting sliding block, a pulley block, a hanging steel wire (rope), a hanging hook and a telescopic support rod. A circular hole in the broad wide of the hangable micro-spraying hose is hung on the hanging steel wire (rope) through the hanging hook. The single-side hangable micro-spraying hose irrigation system can regulate the paving height of the micro-spraying hose through the lifting system according to plant heights and group structural characteristics of different crops, avoid the situation of torsion of the micro-spraying hose in the hanging and lifting processes by adopting the single-side hanging way during field mounting and effectively solve the problems of deviation of injection water flow and non-uniform irrigation because the conventional micro-spraying hose which adopts a single steel wire and a plurality of sleeve buckles for hanging at present is liable to deflection.

The invention relates to the technical field of computer software and hardware, and discloses an automatic spraying and spraying efficiency improving device for a computer case. The automatic sprayingand spraying efficiency improving device comprises a base, a mounting seat is movably mounted in the middle of the base, and a triangular plate is movably connected to the upper end of the mounting seat. According to the automatic spraying and spraying efficiency improving device for the computer case, a driving rod moves between a positive electrode and a negative electrode of a magnetic pole set to do magnetic induction line cutting motion and generate currents to electrify two electromagnets, and circular parts move along an arc groove of an arc disc to get close to the electromagnets on the outer sides, so that the two circular parts get away from each other; and the circular parts drive a liquid sprayer to move synchronously, so that the liquid sprayer rotates while spraying liquid,spraying force is increased through the liquid sprayer, the liquid is sprayed out from a nozzle in a force accumulation manner, the spraying range is widened, the two hands are liberated, meanwhile, the material liquid is prevented from flowing down under the action of gravity due to manual painting, thus, the automatic rotating spraying function is achieved, and meanwhile, the effects of energy conservation and environmental protection are achieved.

The invention belongs to the technical field of atomizers, and particularly relates to an anti-clogging safety-saving-type atomizer which specifically includes a pressurized atomizing spray head and aconstant pressure water supply system. In the anti-clogging safety-saving-type atomizer, water flow in the pressurized atomizing spray head is sprayed from a circular ring hole, the circular ring hole has a larger area than a hole-shaped and linear nozzle and has the effect of increasing the water pressure of the nozzle, and therefore, cogging is not prone to occurred; the water flow sprayed fromthe circular ring hole collides with a baffle board and a baffle twice at high speed, droplets become mist particles, the atomization effect is good, the spraying amount per unit area is reduced, andthe waste of liquid medicine is reduced; carrying by operators is not needed, and personal injury caused by the contact between the traditional Chinese medicine liquid and the skin during the spraying of the medicine liquid is avoided; the constant pressure water supply system can be used for achieving constant pressure in a spray pipe of the atomizer, and the atomization effect is stable; and the atomizer is supplied with pressured by a water pump, pressurizing is carried out by the pressurized atomizing spray head, the spray width is large, and the operating efficiency is high.

The invention discloses a lift-type sprinkler irrigation watering equipment with adjustable spray force for planting fruit tree seedlings. The device, the equipment case is a rectangular structure, the additive inlet bucket is set on the upper left of the equipment case and is connected through electric welding, and the water inlet pipe is located on the lower left of the equipment case and is vertically connected through electric welding. In the sprinkler irrigation and watering equipment of the present invention, the spray force can be automatically adjusted according to the height of the sprinkler head. When the sprinkler head rises, by reducing the resistance in the circuit of the sprinkler pump machine, the power of the pump machine is increased to realize the increase of the spray force. , increase the scope of equipment sprinkler irrigation; when the sprinkler head is lowered, reduce the spray force in the same way to prevent the spray force from being too large, spray the fruit tree seedlings down, or wash away the soil at the root of the fruit tree seedlings, and the root exposure will affect the growth of the fruit tree seedlings. Effectively protect the fruit saplings and enhance the practical performance of the equipment.

The patent of the invention belongs to the technical field of atomizers, and specifically relates to an anti-clogging safety and economical atomizer, which specifically includes a pressurized atomizing nozzle and a constant pressure water supply system. In the anti-clogging safety and economical atomizer of the present invention, the water flow in the pressurized atomizing nozzle is ejected from the annular hole, and the annular hole has a larger area than the hole-shaped or linear nozzle, and has the effect of increasing the water pressure of the nozzle. Therefore, it is not easy to be blocked; the water flow sprayed from the annular hole hits the reflector and baffle twice at high speed, changing from droplets to mist-like particles, and the atomization effect is good, which can reduce the amount of spray per unit area and reduce the waste of liquid medicine; It does not need the operator to carry the burden, which avoids the personal injury caused by the contact between the liquid and the skin in the process of spraying the liquid. The constant pressure water supply system can achieve constant pressure in the atomizer nozzle and stable atomization effect; the atomizer is supplied by the water pump. , and pressurized by the pressurized atomizing nozzle, the spray width is large and the working efficiency is high.

The invention discloses a nozzle, a spraying device and an operation device, and relates to liquid spraying devices. The nozzle comprises a shell and blocking pieces; a liquid spraying hole is formed in an end face of the shell in a penetrating mode and used for spraying out a liquid medium; and an included angle is formed between the blocking pieces and the end face, and the blocking pieces and a part of the liquid spraying hole are oppositely arranged at an interval, such that the liquid medium output by the liquid spraying hole can be sprayed out after being blocked by the blocking pieces. In the nozzle, through the arrangement of the blocking pieces forming the included angle with the end face, the liquid medium sprayed out of the liquid spraying hole can be blocked and drained, the liquid medium flows and diffuses in an inclined direction of the blocking pieces, therefore a spraying width of the nozzle can be remarkably increased, operation efficiency can be effectively improved, growth and operation requirements of crops can be fully met, and the yield of the crops is ensured. The spraying device and the operation device comprise the nozzle, such that the operation efficiency can be effectively improved, the growth and operation requirements of crops are fully met, and the yield of the crops is ensured.

The invention relates to a sprayer which utilizes manpower to shake a water pump on the sprayer so as to achieve the purpose of liquid medicine spraying. The invention comprises a sprayer, a curved bar, a small gearbox, a small water pump, an outlet pipework and a spray head. The invention is characterized in that the curved rod, the small gearbox, the small water pump, the outlet pipework and the spray head are arranged on the sprayer. Because the force of shaking the curved rod is smaller than that of artificial pressure, the spraying force is large, so that the purpose of convenient spraying of liquid medicines can be achieved.