51results about How to "Spray fully and evenly" patented technology

A soyabean protein powder is provided, which is characterized in that: the invention is made with materials as the following weight ratio: 70 pieces to 90 pieces of soy protein isolate, 5 pieces to 25 pieces of whey protein, 0.5 pieces to 2 pieces of lecithin and 0.5 pieces to 2 pieces of stabilizer. The preparation technics of the invention is that: 1, combining the soy protein isolate and the whey protein according to the proportion; 2, adding stabilizer; 3, spraying the lecithin grain granulation on a boil bed; 4, collecting the granulation production and the finished sterilizing product with the water between 3.2 per cent to 3.5 per cent and the sterilizing time of 20min to 40min. The invention has the advantages that: 1, the combination of the protein powder and the aminophenol is rational and completely and is easy for assimilation and absorbability, thus reasonably strengthening the nutriment; 2, the invention enhances the dissolvability and stability of the soy protein; 3, the boiling bed granulation technology adopted fulfills the mixing, granulation and drying in one equipment for once, thus making the production technics simple and easy.

The invention discloses a raw gas waste heat recycling and exchanging unit of an anti-bonding gravity-flowing coke oven, and belongs to the technical field of recycling raw gas waste heat produced in the coking process. A heat exchange unit body comprises a plurality of single-row components, the plurality of the single-row components are arranged in same spaces and fixed together to form a cuboid structural heat exchange unit body, the single-row components are formed by welding heat exchange vertical pipes, heat exchange transverse pipes and heat exchange working medium conveying pipes in a permutation and combination way. Non-viscous coatings are coated on the surfaces of the single-row components, and the heat exchange unit body is inclined upwards along a horizontal plane. According to the arrangement, the tar bonding problem, which is produced in the process of recycling the raw gas waste heat, is solved; and meanwhile, recycled tar is reused, and resources are saved. According to the raw gas waste heat recycling and exchanging unit of the anti-bonding gravity-flowing coke oven, after heat is exchanged, the discharge temperature of the raw gas is reduced below 250 DEG C, the heat exchange effect of the raw gas is greatly improved, effective sensible heat in the raw gas is completely recycled, heat waste is prevented, and requirements on energy conservation and emission reduction are met.

The invention relates to a tobacco leaf vacuum charging system and a method. The vacuum unit (8) of the charging system is respectively connected with a first negative pressure container (2) and a second negative pressure container (7) through a first vacuum pipeline (8) and a second vacuum pipeline (11); a first charging door (1), a first discharging door (18) and a vacuum breaker (16) are arranged on the first negative pressure container; a second charging door (19), a second charging door (15) and a charging nozzle (6) led into the second negative pressure container are arranged on the second negative pressure container; a first pneumatic feeder (4) is connected between the first discharging door and the second discharging door in a sealing way; a second pneumatic feeder (14) is connected with the lower end of the second negative pressure container in a sealing way; and a first vacuum valve (10) and a second vacuum valve (12) are respectively arranged on the first vacuum pipeline and the second vacuum pipeline. The tobacco leaf vacuum charging system and the method can improve the capability of feed liquid for immersing in tobacco leaf cell and the feed liquid absorbing uniformity of the leaf and has high production efficiency and simple equipment structure.

The present invention relates to the technical field of printing machines, in particular to an ink printing machine; the ink printing machine of the present invention includes a base, and also includes a frame clamped on the upper end of the base, and screwed onto the frame through threads The upper printing cylinder, the main printing unit clamped on the upper side of the base and located on the lower side of the upper printing cylinder, and the scraping unit clamped on the base; the main printing unit includes a storage The oil tank, the lower printing roller screwed in the oil storage tank, the first conveying pipe pierced on the side wall of the oil storage tank, the ink nozzle clamped at one end of the first conveying pipe, the clamped The second delivery pipe on the lower side of the other end of the first delivery pipe and the pump clamped on the lower end of the second delivery pipe; the ink spraying part of the ink printing machine of the present invention can spray the ink evenly and fully On the printing roller, the scraping part can scrape the ink more evenly.

The invention discloses a pest and disease prevention tree trunk whitening device for forestry seedling raising, and belongs to the technical field of forestry engineering. The pest and disease prevention tree trunk whitewashing device for forestry seedling raising comprises a moving seat, an arc rack is arranged on the inner wall of the arc circumference of an arc block, arc sliding grooves are formed in the upper side and the lower side of the outer wall of the arc block, penetrating grooves are formed in the middles of the arc sliding grooves, a U-shaped block is arranged in the middle of the inner side of the arc block, a motor is arranged in the middle of the upper side of the U-shaped block, a cylinder is arranged in the middle of the lower side of the U-shaped block, an annular curve groove is formed in the outer wall of the cylinder circumference, and an output shaft of the motor penetrates through the upper wall of the U-shaped block to extend into the U-shaped block and is sleeved with a gear. Through close fit of the structures, the device can automatically paint trees, the situation that thousands of or hundreds of trees are treated, the physical strength of workers is poor is avoided, and meanwhile, the situations that the coating is uneven due to manual spraying, and omission is likely to exist are avoided, mothproof, cold-proof and bacterium-proof effects cannot be achieved, and the attractiveness of urban trees is affected.

The invention discloses an efficient peanut drying machine which comprises a base and a drying box. The two sides of the bottom of the base are provided with supporting legs correspondingly. The top of the base is provided with the drying box. The two sides of the top of an inner cavity of the drying box are provided with hot air ejectors correspondingly. The top of the drying box is provided with a heat supply box. The heat supply box communicates with the hot air ejectors through a hot air pipe. Drying lamps are installed on the top inside the drying box at equal intervals. A vibration screen net is installed in the middle of the inner cavity of the drying box. A drawer is in inserted connection with the lower portion of the inner cavity of the drying box. The side wall of the drying box is provided with a fixing base. An exciting vibration motor is installed at the bottom of the fixing base, and is connected with the vibration screen net through a connecting piece. According to the efficient peanut drying machine, peanuts can be dried through two drying ways at the same time, the drying effect and efficiency are greatly improved, movement is convenient, the service life is long, the structure is simple, and operation is convenient.

The invention relates to the technical field of cooling towers, and discloses a closed cooling tower with a spraying angle convenient to adjust. The closed cooling tower comprises a tower body and a fan, air inlet grids are fixedly arranged on both sides of the lower end of the tower body, the fan is fixedly arranged at the top end of the interior of the tower body, and a water pump is arranged onthe left side of the tower body; a water inlet and a water outlet of the water pump communicate with the lower end and the upper end of the interior of the corresponding tower body through water pipes, a hollow plate is fixedly arranged at the upper end of the interior of the tower body, the water pipe at the upper end communicates with the hollow plate, and the lower end of the hollow plate communicates with a plurality of spray heads through a plurality of corrugated pipes; and a push plate is arranged in the middle of the tower body, a plurality of springs are fixedly arranged on the outerside of the push plate, and one end of the outer side of each spring is fixedly connected with the side wall of the tower body. According to the closed cooling tower with the spraying angle convenient to adjust, the spraying angles of the multiple spraying heads can be adjusted at the same time, spraying can be more uniform and sufficient, and water can be recycled.

The invention discloses a swing type soil pollution repairing device. The swing type soil pollution repairing device comprises a bottom plate, a box body, a spring, a first motor, a first rotary shaft, a mounting rod, a crushing ball, a crushing blade, a soil transfer device, a second motor, a hollow shaft, a hollow fan plate, a double-shaft motor, a second rotary shaft, a stirring rod, a threadedrod, a counterweight ball, a soil repairing liquid box and a water pump. The soil transfer device comprises the second motor, the hollow shaft and the hollow fan plate. The device is further providedwith the first motor, the first rotary shaft, the mounting rod, the crushing ball and the crushing blade which are matched to achieve crushing in multiple stages, so that the device is high in crushing speed and high in efficiency. As the soil repair liquid box, the water pump and the soil transfer device are arranged, a soil repair liquid can be sprayed to falling soil fully, so that the soil repair efficiency is improved. As the double-shaft motor, the threaded rod, the counterweight ball and the spring are arranged and matched, soil in the box body swings continuously, so that the soil andthe soil repair liquid are fully mixed, and therefore, the soil repair efficiency is further improved.

The invention discloses an antirust treatment device for elevator part machining, and relates to the field of elevator part machining. The antirust treatment device comprises a fixed base, wherein a stand column is fixedly connected to the left side of the upper portion of the fixed base, an upper beam is fixedly connected to the top of the stand column, a motor is fixedly connected to the lower portion of the left side of the stand column, a driving rotating shaft is fixedly connected to an output shaft of the motor, a first bevel gear is fixedly connected to the outer side of the driving rotating shaft, a guide support is fixedly connected to the right side of the stand column, a transmission rotating shaft is rotationally connected to the inner side of the guide support, and a second bevel gear is fixedly connected to the bottom of the transmission rotating shaft. A paint spraying assembly is driven by the single motor to do left-right reciprocating motion, the paint spraying assembly drives a supporting bottom plate to move front and back while doing left-right reciprocating motion, then paint spraying treatment is carried out in cooperation with the paint spraying assembly, and paint can be fully and evenly sprayed; and in addition, the paint spraying assembly is provided with a directional paint spraying gun and a direction-changing paint spraying gun during paint spraying, the paint spraying sufficiency is greatly improved through cooperative use, and the use experience is good.

The invention relates to a landscape engineering slope greening structure which comprises a slope body, a planting soil layer and a slope surface on the slope body. A gravel layer is fixedly laid between the planting soil layer and the slope body, a concrete layer is fixedly laid between the gravel layer and the slope body, and a plurality of transverse reinforcing plates and vertical reinforcingplates are fixedly connected to the upper surface of the planting soil layer; the bottom ends of the transverse reinforcing plates and the bottom ends of the vertical reinforcing plates penetrate through the gravel layer and then are fixedly connected with the upper surface of the concrete layer, the transverse reinforcing plates and the vertical reinforcing plates divide the upper portion of theslope face into a plurality of grid units, turf is fixedly laid on the planting soil layer in each grid unit, and an irrigation mechanism is arranged on the slope body; and the irrigation mechanism isused for irrigating the turf in each grid unit, and drainage holes are formed in the side walls of the transverse reinforcing plates and the side walls of the vertical reinforcing plates. The landscape engineering slope greening structure has the effect of improving the turf survival rate.

The invention discloses a drilling machine tool with a cooling liquid purifying and recycling mechanism, and relates to the technical field of drilling, the drilling machine tool comprises a platform provided with a blanking hole, an air cylinder is fixedly installed at the top of a transverse plate located above the platform, and the output shaft end of the air cylinder penetrates through the transverse plate and then is provided with a lifting plate; a motor in transmission connection with the vertical shaft is fixedly installed at the top of the lifting plate, an isolation barrel with an opening in the bottom is arranged below the lifting plate, the bottom end of the vertical shaft slidably penetrates through the isolation barrel and is fixedly provided with a drill bit, the isolation barrel is connected with the lifting plate through a pressing mechanism, and a cooling liquid conveying mechanism communicated with the interior of the isolation barrel is arranged on the platform. A cooling liquid purifying and recycling mechanism is arranged at the bottom of the platform and comprises a liquid storage tank with an opening in the top, and a purifying assembly is arranged in the liquid storage tank; the cooling liquid can be recycled after being recycled and purified, waste of the cooling liquid is reduced, and resources are saved.

The invention discloses a two-time fermentation method for Liupao tea.The method sequentially comprises the following steps of tea picking, fixation, rolling, fermenting, drying, sieving, blending, pile fermentation, drying, tea steaming, extrusion and secondary fermentation and aging; the fermenting step comprises the process of conducting fermentation through a tea leaf fermentation device; the secondary fermentation step comprises the processes that well-steamed Liupao tea leaves are put into the tea leaf fermentation device for fermentation, standing is conducted for 24 h, the treated tea leaves are pressed into tea blocks, the tea blocks are packed with sticky rice paper, and then the packed tea blocks are put into a basket sprayed with fermentation liquid; the tea leaf fermentation device comprises a tea barrel, a pair of electromagnets which are opposite in magnetic pole direction are arranged between the inner wall of a tea barrel groove and the portions outside protrusions of a liquid inlet pipe, and the liquid inlet pipe is provided with a circular water tray and multiple spray heads.According to the two-time fermentation method for the Liupao tea, the problems that for an existing one-time fermentation technology of the Liupao tea, the fermentation period is long, fermentation is nonuniform and insufficient, and the quality of finished tea is affected can be solved.

The invention belongs to the field of medical instruments, and particularly relates to a children peripheral blood collection robot which comprises a control module, a bar code scanning module, a voice conversation module, a finger clamping type module, a moving module, a disinfectant spraying module, an image recognition module and a micro-flow collection module. The disinfectant spraying module,the image recognition module and the micro-flow collection module are arranged at the tail end of the moving module. The image recognition module is used for target detection based on deep learning,recognizing the fingertip position of a child, judging a peripheral blood collection position and feeding back fingertip position information and peripheral blood collection position information to the moving module through the control module in a visual servo mode. The tail end of the moving module moves to the upper portion of the fingertip position, and a posture is adjusted based on the peripheral blood collection position information so as to drive the micro-flow collection module to move to the position over the peripheral blood collection position; the disinfectant spraying module sprays disinfectant to the peripheral blood collection position; the tail end of the moving module descends, and a needle of the micro-flow collection module is inserted into the finger tip to suck the peripheral blood. The robot is high in adaptability to children patients and good in rapidity.

The invention relates to a sprayer, in particular to a sprayer device for jetting concrete. The sprayer device comprises a water inlet, a valve, a sprayer base and a sprayer. A channel allowing the concrete to pass is arranged in the sprayer base. The sprayer is communicated with the sprayer base. A water ring cavity communicated with the water inlet is formed between the outer wall of the sprayer base and the channel. A water ring sleeve is arranged between the channel and the water ring cavity. Four to eight end faces axially arranged on the water ring sleeve at certain intervals are each provided with four to eight water adding holes communicated with the water ring cavity and the channel. The water adding holes are axially staggered by a certain angle. By means of the sprayer device, dry cement particles which are contained by the concrete and not wetted by moisture can be reduced during jetting, dust is reduced, a rebound material is reduced, and jetting strength is improved.

The invention discloses plant protection equipment for winter jujubes. The plant protection equipment comprises a vehicle body, height adjusting assemblies, a first pesticide spraying assembly and a second pesticide spraying assembly, wherein the vehicle body comprises wheel sets and a vehicle frame, and the multiple wheel sets are all mounted at the bottom of the vehicle frame; the number of the height adjusting assemblies is two, and the two height adjusting assemblies are vertically mounted at the front end and the rear end of the vehicle frame correspondingly; the first pesticide spraying assembly and the second pesticide spraying assembly are mounted at the upper ends of the two height adjusting assemblies correspondingly, the first pesticide spraying assembly is higher than the second pesticide spraying assembly, the first pesticide spraying assembly is used for spraying pesticide to the lower rear portion, and the second pesticide spraying assembly is used for spraying the pesticide to the upper rear portion. According to the plant protection equipment for the winter jujubes, pesticide spraying or foliar fertilizer application can be conveniently carried out on winter jujube trees.

The invention discloses a self-operated rotary jet stirring and blending device which comprises a main rotating body, a main rotating shaft, main rotating arms, main nozzles, a side rotating shaft, side rotating bodies, side nozzles and side blades, wherein main blades are arranged at the upper end of the main rotating body; each main rotating arm is provided with three groups of main nozzles which are regularly arranged; the main nozzles at the outer end are horizontally arranged and are perpendicular to the axes of the main rotating arms; the main nozzles at the inner end are vertically arranged and are perpendicular to the axes of the main rotating arms; the main nozzles in the middle are arranged by forming an angle of 45 degrees with the axes of the main rotating arms. Compared with conventional similar devices, the self-operated rotary jet stirring and blending device is more uniform and sufficient in mixing and can be used for blending and stirring gasoline, diesel oil, lubricating oil and various liquid chemical products. A circulation (feeding) pump is adopted to supply the power, and by utilizing the counterforce of jet of the nozzles, a rotary jetting device is driven to form a jetting area which horizontally rotates upwards and two jetting areas which vertically rotate in the lateral direction, so that blended mediums can be sufficiently mixed.

The invention discloses a gas-liquid cooling device, which comprises a tower cylinder (1). A first-layer gas distributor (6), a second-layer gas distributor (7), and a third-layer gas distributor (8) are connected to the inner wall of the tower cylinder (1) from the bottom up in turn. The first-layer gas distributor (6) is a conical pipe with an upward large opening, and a pipe is inserted on thesurface of the conical pipe in an inclined mode; the second-layer gas distributor (7) is a conical pipe with an upward small opening, a pipe is inserted on the surface of the conical pipe in an inclined mode, a circular plate covers on the small opening of the conical pipe, and a small hole is formed in the middle of the circular plate; and the third-layer gas distributor (8) is a straight barrelin which a short conical pipe is sleeved, a pipe is inserted on the surface of the short conical pipe, an annular plate (12) is connected with the lower end of the straight barrel, and small holes are uniformly distributed on the annular plate (12). The gas-liquid cooling device can well uniformly cool and purify the collected gas.

The invention discloses a preparation method of pericarpium citri reticulatae Liupao tea.The preparation method sequentially includes the following steps of tea leaf picking, fixation, rolling, fermentation, drying, screening, blending, piling, drying, tea steaming, extrusion, secondary fermentation and ageing, wherein a tea leaf fixation device is used for carrying out fixation on tea leaves in the fixation step, a tea leaf fermentation device is used for fermenting the tea leaves in the fermentation step, and tea leaf fermentation is carried out in the secondary fermentation step.The preparation method can solve the problem that the quality of existing finished Liupao tea is low due to non-uniform and insufficient fixation and fermentation.

The invention discloses a spraying device capable of recovering pesticide. The spraying device comprises a pesticide storage tank, a pesticide spraying channel, a recovery loop, a safety loop, a sprayrod and multiple collecting discs, wherein an inlet of the pesticide spraying channel is communicated with the pesticide storage tank, and an outlet of the pesticide spraying channel is communicatedwith one end of the spray rod; an inlet of the recovery loop is communicated with the collecting discs, and an outlet of the recovery loop is communicated with the pesticide storage tank; an inlet ofthe safety loop is communicated with the pesticide storage tank, and an outlet of the safety loop is communicated with the outlet of the pesticide spraying channel; multiple nozzles are uniformly arranged at the other end of the spray rod and used for spraying pesticide; the multiple collecting discs are arranged below the nozzles in the axial direction and used for recovering the pesticide. The spraying device capable of recovering the pesticide is capable of recovering large drops of pesticide flowing down from the centers of the sprinkler nozzles and uniformly spraying the pesticide and high in use ratio. The invention further discloses a control method of the spraying device capable of recovering the pesticide. According to the plant area to be sprayed and the distance from the nozzlesto the ground, the rotating speed of a first pressure pump can be controlled to spray the pesticide, the pesticide can be fully and uniformly sprayed to plants, the spray efficiency is high, and thepesticide use ratio is large.

The invention relates to a waste gas purification treatment method. The method comprises the following steps: s1, connecting a water source into a water inlet pipe so that the water is sprayed out from an atomizing nozzle; s2, introducing waste gas, and humidifying and spraying the waste gas; s3, starting an induced draft fan and an air blower, and feeding the gas in the S2 into the bottom of thetreatment chamber; and S4, moving the waste gas in the treatment chamber from bottom to top, and preliminarily filtering through a filter material plate so that harmful organic matter in the waste gasand a catalyst fixed to the filter material plate are decomposed under the catalytic action. According to the invention, waste gas is sprayed; according to the waste gas treatment device, the waste gas is preliminarily filtered by the filter material plate, harmful organic matters in the waste gas and a catalyst fixed on the filter material plate are decomposed under the catalytic action, residual particles in the waste gas are adsorbed by a filter screen II, and finally, the waste gas is purified and sterilized by a ultraviolet lamp, so that the purpose of purifying the waste gas is achieved, and the device is simple, convenient to operate and good in removal effect.

The invention discloses a construction method for an anti-bonding automatic-flow coke furnace raw gas waste heat recovery heat transfer unit and belongs to the technical field of raw gas waste heat recovery utilization in the process of the coking process. The construction method is: welding of a single-row assembly; bottom clearing of the single-row assembly; aerosol spraying of non-stick coating; and welding of the heat transfer unit. The upper end ports of all the upper heat transferring working medium delivery pipes are respectively welded and communicated with a steam discharge pipe, and the lower end ports of all the lower heat transferring working medium delivery pipes are respectively welded and communicated with a cooling water inlet pipe. When the heat transferring unit body is assembled, the included angle between the plane where an insulation board arranged on the lower side of the heat transferring unit body and the horizontal plane is 15-45 degrees. Since the construction mode that the single-row assembly is welded firstly and the then the non-stick coating is sprayed, the construction method for the anti-bonding automatic-flow coke furnace raw gas waste heat recovery heat transfer unit not only can facilitate the uniform spraying of the anti-stick coating, but also avoid that the anti-stick coating is damaged by the high temperature and machineries when being welded.

The invention relates to the field of wooden product processing, and particularly relates to a surface colored paint spraying device for furniture wooden door processing. The surface colored paint spraying device comprises a spraying cabinet, a supporting plate, a conveying assembly, an opening and closing assembly and the like. The supporting plate is fixedly welded to the right side of the outer wall of the spraying cabinet, the conveying assembly is arranged on the supporting plate, and the opening and closing assembly is arranged on the spraying cabinet. Through cooperation of a spray head and devices on the spray head, in the process of spraying pigment to the upper surface of a to-be-processed home wooden door, the spray head and the devices on the spray head can reciprocate, the pigment can be fully and evenly sprayed to the upper surface of the to-be-processed home wooden door conveniently, and the effect of evenly spraying the pigment to the upper surface of the to-be-processed home wooden door is achieved.

The invention relates to the technical field of waste gas treatment, and discloses waste gas treatment equipment. The equipment comprises a bottom plate, a humidifying chamber is fixedly connected tothe left side of the top of the bottom plate, a treatment chamber is fixedly connected to the right side of the top of the bottom plate, a water inlet pipe is arranged at the top of the bottom plate,penetrates through the humidifying chamber and extends into the humidifying chamber, supports are fixedly connected to the outer surfaces of the two ends of the humidifying chamber, and the tops of the two supports are fixedly connected with the humidifying chamber. According to the invention, waste gas is sprayed; the waste gas is preliminarily filtered by the filter material plate, harmful organic matters in the waste gas and a catalyst fixed on the filter material plate are decomposed under the catalytic action, residual particles in the waste gas are adsorbed by a filter screen II, and finally, the waste gas is purified and sterilized by the ultraviolet lamp, so that the purpose of purifying the waste gas is achieved, and the equipment is simple, convenient to operate and good in removal effect.

The invention discloses a raw gas waste heat recycling and exchanging unit of an anti-bonding gravity-flowing coke oven, and belongs to the technical field of recycling raw gas waste heat produced in the coking process. A heat exchange unit body comprises a plurality of single-row components, the plurality of the single-row components are arranged in same spaces and fixed together to form a cuboid structural heat exchange unit body, the single-row components are formed by welding heat exchange vertical pipes, heat exchange transverse pipes and heat exchange working medium conveying pipes in a permutation and combination way. Non-viscous coatings are coated on the surfaces of the single-row components, and the heat exchange unit body is inclined upwards along a horizontal plane. According to the arrangement, the tar bonding problem, which is produced in the process of recycling the raw gas waste heat, is solved; and meanwhile, recycled tar is reused, and resources are saved. According to the raw gas waste heat recycling and exchanging unit of the anti-bonding gravity-flowing coke oven, after heat is exchanged, the discharge temperature of the raw gas is reduced below 250 DEG C, the heat exchange effect of the raw gas is greatly improved, effective sensible heat in the raw gas is completely recycled, heat waste is prevented, and requirements on energy conservation and emission reduction are met.

The invention discloses a maintenance device outside a bridge, the device comprises a shell plate and drive mechanisms, wherein the shell plate comprises a first half ring and a second half ring, oneend of the first half ring is rotationally connected with one end of the second half ring, and a bridge pier entrance is arranged between the other end of the first half ring and the other end of thesecond half ring. The inner sides of the first half ring and the second half ring are connected with installation ring plates, and a plurality of drive mechanisms are installed on opposite sides of the two installation ring plates. A plurality of paint spray nozzles spray paint to the bridge pier, and a spreading plate abuts with the outside of the bridge pier under the drive of a first hydrauliccolumn; as the shell plate moves outside the bridge pier, the spreading plate can spread the paint on the outside of the bridge pier. The paint spraying efficiency is improved, and the spraying is more full and uniform. Or the paint can be sprayed after cleaning, so the exterior of the bridge pier can be comprehensively maintained, and the aesthetics and durability of the bridge pier are improved.

The invention discloses a pesticide spraying device for landscape garden trees and a using method of the pesticide spraying device. The pesticide spraying device comprises a pesticide liquid tank thatis arranged in an outer shell, the outer shell is internally provided with an infusion pump and a dive motor pump, four storage tanks are formed in the outer shell, first columnar bulges are mountedin the storage tanks, telescopic assemblies are arranged in the storage tanks, each telescopic assembly comprises a connecting sleeve, an inserted bar and a loop bar, the inserted bars and the loop bars are in threaded connection to two ends of the connecting sleeves correspondingly, and the loop bars are inserted in the first columnar bulges. Guide wheels can enter or exit from a bottom shell automatically, so that the movement of the pesticide spraying device is facilitated; meanwhile, when the pesticide spraying device needs to be used, a plurality of soil inserting rods can be inserted inthe soil in a garden, so that the situation that the mounted telescopic assemblies cannot topple over in pesticide spraying is ensured; the four telescopic assemblies are mounted in the storage tanks,and meanwhile, a spray head mounting opening is formed, so that the pesticide spraying device is convenient to carry; and the lengths of the telescopic assemblies can be adjusted, so that the requirement that garden trees with different heights are sprayed with pesticides is met.