84results about How to "Increase spray area" patented technology

A spraying device for atomizing a liquid is proposed. The spraying device includes a nozzle plate and an actuator. The nozzle plate is provided with a plurality of nozzle apertures. Each of the nozzle apertures includes an entry end for the liquid to enter and an exit end for the liquid to exit. The entry end and the exit end of at least one of the nozzle apertures are asymmetrical structures. The actuator is integrated with the nozzle plate to actuate atomization of the liquid. The spraying direction of a liquid droplet after the liquid is atomized can be controlled by modifying the shape of the exit end of the nozzle aperture.

The invention relates to a liquid spraying rod of an agricultural plant protection unmanned aerial vehicle. The liquid spraying rod comprises a plurality of spraying rod assemblies which are mutually connected in a threaded mode; the spraying rod assemblies located at the two ends of the liquid spraying rod are connected with a plug and a connecting rod in a threaded mode correspondingly, and a ball head is arranged at one end of the connecting rod; liquid flow-through holes which communicate with each other are formed in the spraying rod assemblies, the connecting rod and the ball head correspondingly; each spraying rod assembly comprises a rod body and a spraying head assembly, wherein the outer wall of the rod body is provided with a locating ring; each spraying head assembly comprises a rotating ring and a spraying head connected with the rotating ring; a circle of ring teeth is formed in the circumference of each locating ring; and pawls are further arranged on the inner walls of liquid flow channels. The liquid spraying rod can be connected with the spraying rod assemblies of different numbers so that it can be guaranteed that spraying can be carried out smoothly, normal flight of the unmanned aerial vehicle cannot be affected, and trees and plants cannot be damaged.

The invention relates to a plant-protecting unmanned aerial vehicle used for agriculture. The plant-protecting unmanned aerial vehicle comprises an unmanned aerial vehicle body, a liquid storage box is arranged in the unmanned aerial vehicle body, and two liquid spraying rods are symmetrically connected to the unmanned aerial vehicle body; each liquid spraying rod comprises a plurality of sprayingrod assemblies connected in a threaded mode, and the spraying rod assemblies located at the two ends of each liquid spraying rod are correspondingly connected with a plug head and a connecting rod, aball head is arranged at one end of each connecting rod, and communicated liquid circulating holes are formed in the spraying rod assemblies, the connecting rods and the ball heads; the unmanned aerial vehicle body is provided with a spherical cavity body, the ball heads are installed in the spherical cavity body in an interference mode, and a water outlet hose is further arranged in the unmannedaerial vehicle body; the two ends of the water outlet hose correspondingly communicate with the liquid storage box and the liquid circulating hoes of the ball heads, and the water outlet hose is further provided with an electronic controlling valve; and the spraying rod assemblies comprise rod bodies and spraying head assemblies. According to the plant-protecting unmanned aerial vehicle used foragriculture, the liquid spraying rods can be connected with different number of spraying rod assemblies, so that smooth spraying is guaranteed, and normal flight of the unmanned aerial vehicle is notaffected, and damaging to trees and plants does not occur.

The invention discloses a method for improving construction engineering project management, and belongs to the technical field of construction engineering management. The method for improving the construction engineering project management is realized based on environment management equipment, the environment management equipment comprises a base, a top water box is embedded in the middle of the bottom surface of the inner side of a water tank above the base, a water outlet pipe is arranged above the top water box, and the water outlet end of the water outlet pipe is communicated with an atomizing nozzle; meanwhile, a swing assembly is arranged to achieve left-right swing of the atomization nozzle. The motor is used for driving a shifting plate and other parts in the water ejecting box to lift water and spray the water out through the atomizing nozzle, and meanwhile power of the motor is transmitted to the swing assembly to swing the atomizing nozzle. According to the invention, managers can conveniently carry out building construction environment management work, and the risk that constructors suffer from pneumoconiosis is reduced while the sustainable development strategy is met.

A lawn sprinkler. It relates to a sprinkler, in particular to a lawn sprinkler for lawn and gardening. The utility model provides a lawn sprinkler which is simple in structure, convenient to operate and saves manpower. It includes a car body, a liquid bag and an adjustable mechanism. The center of the top surface of the car body is provided with a boss. A number of water outlets are evenly distributed on the ring surface of the liquid bag, and the boss is located in the central hole of the liquid bag. The invention is convenient to process and has low cost.

The invention relates to a washing tower and a method for treating waste gas through the same. The washing tower comprises a tower body, a water tank, a filter plate, a nozzle, a horizontally-laid spreader plate, a plate type water collector and a multi-face hollow ball. The tower body is provided with an air inlet, an air outlet and a plurality of service windows. A water pump is fixedly connected to the top of the water tank. The water tank is welded to the bottom end of the tower body. The filter plate is arranged at a water through opening of the water tank and the tower body. The nozzle is connected with the water pump through a spraying pipe. The horizontally-laid spreader plate is arranged below the nozzle. The plate type water collector is arranged above the nozzle. The multi-face hollow ball is arranged above the plate type water collector. The horizontally-laid spreader plate has high density, larger surface area, extremely high surface utilization rate and smaller resistance, so that more water films for absorbing waste gas are generated, and then the waste gas purification efficiency is improved.

The invention discloses a small multifunctional pesticide spraying vehicle. The vehicle comprises a base, and a pesticide box is fixedly arranged on the top of the base; a left supporting plate and aright supporting plate are fixedly arranged on the top of the base, and a fixing plate is fixedly arranged on the tops of the supporting plates; a pressurizing cylinder is fixedly arranged on the topof the base, a water inlet pipe is connected with the lower left corner of the pressurizing cylinder, the water inlet pipe reaches to the lower right corner of the interior of the pesticide box, and awater outlet pipe is connected with the water inlet pipe; a rectangular plate is arranged on the fixing plate, a supporting frame is fixedly arranged on the left side of the top of the rectangular plate, a spraying pipe is hinged to the top of the supporting frame, and the left end of the spraying pipe is connected with the top of the water outlet pipe through a hose; a sliding rail is fixedly connected with the right side of the bottom of the spraying pipe, a sliding block is slidably connected below the sliding rail, an electronic push rod is fixedly arranged on the right side of the top ofthe rectangular plate, and the top of the electronic push rod is hinged to the sliding block. According to the vehicle, the angle between the spraying pipe and the rectangular plate can be changed bychanging the length of the push rod, so that the height of pesticide spraying is changed, and the vehicle is suitable for pesticide spraying of different plants.

The invention discloses a full-automatic assembly line system for electrostatic powder coating. The full-automatic assembly line system comprises a fixed base, a non-contact powder bin arranged on thebase, a powder recycling system arranged on the non-contact powder bin, a barrel type coating bin fixedly connected to the fixed base, a suspension conveying mechanism arranged on the barrel type coating bin, a primary powder spraying structure arranged on the barrel type coating bin, a secondary powder spraying structure arranged on the rear side of the primary powder spraying structure and a leveling mechanism arranged on the secondary powder spraying structure. The two spraying structures are arranged, the spraying area between of a flowing water chamber is enlarged, the conveying speed ofthe suspension conveying structure can be further increased, and therefore the working efficiency is improved. And the powder recycling system is arranged and matched with the barrel type coating binso that powder can be recovered and utilized in time, powder waste is reduced, and the cost is also reduced.

The invention provides a spraying arm used for a dishwasher and the dishwasher with the spraying arm. The spraying arm used for the dishwasher comprises a water inlet pipe, a water distributing pipe, a spraying head and an end cover, wherein the water distributing pipe is communicated with the first end of the water inlet pipe, the axis of the water distributing pipe is orthogonal with the axis of the water inlet pipe, the first end of the water distributing pipe is closed, and the second end of the water distributing pipe is open; the water distributing pipe is sleeved with the spraying head which can rotate around the axis of the water distributing pipe, the portion, shielded by the spraying head, of the water distributing pipe form a plurality of first through holes formed at intervals in the peripheral direction of the water distributing pipe, and the end cover is detachably arranged at the second end of the water distributing pipe. Due to the spraying arm used for the dishwasher, the spraying head can perform jet around the horizontal axis and the vertical axis at the same time, the spraying region of the spraying head is greatly increased, the structure is simple, and the cleaning effect is good.

The invention provides a rotating disc driving type rotary spraying device for ocean drilling platform pile shoe assistant lifting. The structure comprises a shell body, an annular piston, a rotating valve core, a valve rod sleeve, an end cover and a reset spring, wherein a valve cavity is formed in the middle of the shell body, a connection pipe is arranged at the upper end of the shell body, the pipe cavity of the connection pipe is communicated with the valve cavity, the end cover is in thread connection onto the lower end of the valve cavity, a through hole is vertically formed in the center of the end cover, the annular piston is arranged in the middle of the valve cavity, a concave ring is arranged in the middle hole of the annular piston, the upper part of the concave ring and the upper end of the valve rod sleeve are connected, the lower end of the valve rod sleeve is inserted into the central through hole in the end cover, the rotating valve core is formed by a valve core, a valve rod and a rotary spraying driving disc, the valve core and the rotary spraying driving disc are arranged at the upper end and the lower end of the valve rod, a water inlet hole is horizontally formed in the middle of the valve core, a water outlet pipeline is arranged in the center of the valve rod, a vortex spraying hole is horizontally formed in the rotary spraying driving disc, and the vortex spraying hole is communicated with a water inlet through the water outlet pipeline. The valve core rotates automatically during spraying and washing, the spraying and washing area is increased, the spraying and washing effect is improved, the device can rapidly eliminate the coating and adsorbing of submarine sludge to a pile shoe, the lifting of the pile shoe is accelerated, and the work area transferring cycle of a petrol platform is shortened.

The invention discloses a cleaning machine for a kitchen. The cleaning machine comprises a sink body and a spraying system; the cleaning machine is characterized in that the spraying system comprisesa water intake component and a water return component, wherein the water intake component comprises a water intake pipe; the water return component comprises a water return pipe which communicates with the bottom of the sink body; a reflux pipe communicates between the water intake pipe and the water return pipe; a reflux valve is arranged on the reflux pipe; a sealing plate is arranged at the bottom of the sink body; an accommodating cavity is formed between the sealing plate and the bottom of the sink body; an inner toothed ring is arranged on the sidewall of the accommodating cavity; a central gear is rotatably arranged in the middle of the accommodating cavity; in the accommodating cavity, a planet gear, a second planet gear and a third planet gear are between the inner toothed ring and the central gear; a main spraying arm is arranged at the upper side of the central gear; a spraying arm is each correspondingly arranged at the upper sides of the various planet gears; and the central gear is connected to the three planet gears via a planet rack. The cleaning machine for the kitchen provided by the invention is beneficial for improving a dish cleaning effect.

The invention discloses a water tank dish-washing machine for a kitchen. The water tank dish-washing machine for the kitchen comprises a tank body and a spraying system, and is characterized in that the tank body comprises an inner layer and an outer layer, a water inlet channel is formed between the inner layer and the outer layer, an upper spraying arm is arranged below a cover plate, an accommodating cavity is formed in the bottom of the inner layer, a central gear is rotatably arranged in the middle of the accommodating cavity, three planet wheels are separately arranged in the accommodating cavity and are positioned between an inner gear ring and the central gear, a main spraying arm is arranged above the central gear, a spraying arm is correspondingly arranged on each planet wheel; the central gear is connected with the three planet wheels through a planet carrier; the spraying system comprises a water inlet tube, a water inlet valve, a water inlet pump, a water outlet tube and awater outlet valve; a communicating tube communicates between the water inlet tube and the outer layer; a communicating valve is arranged on the communicating tube; and a connecting piece is arrangedon the top of the tank body. By the water tank dish-washing machine for the kitchen, the bowl and dish cleaning effect is improved favorably.

The invention relates to a blow-filling injection system. The blow-filling injection system comprises a mud discharge tube and a spray head which is arranged at a discharge end of the mud discharge tube, and further comprises a spray head guide device, wherein a spray head is fixedly arranged on the guide device; the guide device can drive the spray head to move to form an arc-shaped silt pile, sothat an injection area is greatly increased, operation time of an earth remover is reduced, and working efficiency is improved; the spray head comprises a spray head body which is in the shape of a cone; the diameter of a nozzle of the spray head body is smaller than that of an inlet; the rear end of the spray head body is equipped with a guide mechanism; the guide mechanism comprises a guide ring, a ring-shaped gas cavity and a plurality of gas-flow holes which are uniformly distributed in an annular mode; the guide ring is detachably arranged on the inner wall of the rear end of the spray head body; the guide ring is positioned at gas outlets of the gas-flow holes, so that gas flows in a spray-out direction of the spray head body; the ring-shaped gas cavity covers gas inlets of the gas-flow holes; and the ring-shaped gas cavity communicates with the gas inlets.

The invention provides a turbine driving rotary spraying device used for assisting in lifting a marine drilling platform pile shoe. The device comprises a shell, a valve core, a valve rod, an end cover and a reset spring, wherein a valve cavity is formed in the middle of the shell; an interface pipe is arranged on the upper end of the shell; a pipe cavity of the interface pipe is communicated with the valve cavity; the lower end of the valve cavity is connected with the end cover by threads; a through hole is vertically formed in the center of the end cover; the top edge of the valve core is connected with the lower pipe orifice of the interface pipe to form a valve structure; the valve rod is arranged on the lower end of the valve core; a blind hole is formed in the center of the valve rod; a turbine is arranged on the top of the valve core; a water inlet is formed in the middle of the valve core; a water spraying hole is formed in the lower end of the valve rod and is communicated with the water inlet hole by the blind hole; the excircle of the low end of the valve rod penetrates through the vertical through hole in the center of the end cover; the reset spring sleeves the excircle of the low end of the valve rod; the lower end of the reset spring is connected with the upper end of the end cover; the upper end of the reset spring is connected with a thrust bearing at the bottom of the valve core. According to the device, the valve core can automatically rotate in the spraying and flushing process, the point-line spraying and flushing in the prior art are changed into the rotating surface spraying and flushing, the spraying and flushing areas are enlarged, and the spraying and flushing effects are improved.

An agricultural unmanned aerial vehicle (10) comprises a base frame (11), a plurality of nozzle assemblies (13), a plurality of water pumps (14), a water tank (15) and a controller (16). The base frame comprises a central body (111) and a vehicle arm (112). The plurality of nozzle assemblies are distributed on two sides of the base frame in a roll axial direction of the agricultural unmanned aerial vehicle below the vehicle arm, and the nozzle assembly comprises a plurality of nozzles (131). The plurality of water pumps are in communication with the plurality of nozzle assemblies respectivelyand configured to transport a liquid flow to the nozzles and spray the same therethrough. The plurality of water pumps are in communication with the water tank. The controller is electrically connected to the water pump and can selectively control the plurality of water pumps to perform spraying by means of the nozzle assembly in communication with the selected water pump. The vehicle arm comprises a left arm (112a) and a right arm (112b) in the roll axial direction of the agricultural unmanned aerial vehicle, each of the left arm and the right arm corresponds to at least one nozzle assembly respectively, and each nozzle assembly share one water pump. The agricultural unmanned aerial vehicle can realize accurate controlled spraying.

The invention relates to the field of production of a ceramic lampshade with lace cloth textures and discloses a slurry spraying device for lace cloth. The device comprises a baseplate (1), a slide table (2), a spraying gun (3), a slide table movable mechanism (4), a spraying gun motion mechanism (5) and a supporting plate (6), wherein reciprocating intermittent straight-line motion of the slide table (2) can be achieved by the slide table movable mechanism (4); vertical motion of the spraying gun (3) can be achieved by the spraying gun motion mechanism (5) installed on the slide table (2), so that the spraying gun (3) can carry out operations in horizontal and vertical directions; and because of the spraying gun, consumption of slurry can be reduced, the slurry distributed on the lace cloth is uniform and has proper thickness, and hole blocking does not take place easily.

The invention discloses a kitchen sink dish-washing machine. The kitchen sink dish-washing machine comprises a sink body, a cover board and a spraying system, and is characterized in that the sprayingsystem comprises a water inlet pipe, a water inlet valve, a water inlet pump, a water outlet pipe and a water outlet valve, wherein a mounting part is formed on the lower side face of the cover board, a spraying channel is formed at the root of the mounting part, the outer end of the spraying channel is connected with the water inlet pipe, a mounting groove is formed in the mounting part, an inner gear ring is arranged on the wall of the mounting groove, a hollow motor is arranged in the mounting groove, the hollow motor comprises a motor body and a hollow rotation shaft which penetrates through the motor body, a central gear is arranged on the outer wall of the hollow rotation shaft, three planet wheels are arranged between the inner gear ring and the central gear in the mounting groove,a spraying arm is arranged below each planet wheel, a planet carrier is arranged above the central gear, a through hole is formed in the middle of the planet carrier, and a flow-separating part is arranged in the through hole. For the kitchen sink dish-washing machine provided by the invention, the spraying covering area is increased, and the washing effect for bowls and dishes is improved.

The invention relates to the field of household appliances, and discloses a dish washer spray device and a dish washer. The spray device comprises a spray component rotationally installed on the sidewall of an inner tank of the dish washer and provided with at least two spray channels, and also comprises a switching component used for switching the spray channels to communicate one spray channelwith a spray pipeline of the dish washer; and spray tracks formed by each spray channel are different. According to the dish washer spray device, the spray channels with different spray tracks are arranged, and one spray channel communicates with the spray pipeline of the dish washer via the switching component, so that the spray channels can be switched via the switching component during a sprayprocess of the dish washer, and thus spray via the spray channels that can form different spray tracks is achieved, each corner in the inner tank of the dish washer can be sprayed; and the device is simple in structure, can avoid dead angles in spray, and thus is improved in cleaning effect. The invention also provides a dish washer including the abovementioned dish washer spray device.

The invention discloses a composite ionization source device. The device comprises a quartz glass tube and a double-layer hollow metal capillary tube with one end being inserted into the quartz glasstube, wherein the other end of the quartz glass tube is aligned with a mass spectrum interface. A high-voltage AC power supply is connected between the double-layer hollow metal capillary tube and theouter tube wall of the quartz glass tube; and one end, located outside the quartz glass tube, of the double-layer hollow metal capillary tube is used for feeding air and samples and is connected witha high-voltage DC power supply at the same time, wherein the other end, inserted into the quartz glass tube, of the double-layer hollow metal capillary tube is used for ionizing the samples.

The invention provides a double-rotation spraying and flushing device used for assisting in lifting a marine drilling platform pile shoe. The double-rotation spraying and flushing device structurally comprises a shell, an annular piston, a valve core, a valve rod sleeve, a rotary spraying disc, an end cover and a reset spring, wherein a valve cavity is formed in the middle of the shell; an interface pipe is arranged on the upper end of the shell; the pipe cavity of the interface pipe is communicated with the valve cavity; the end cover is arranged on the lower end of the valve cavity; a through hole is vertically formed in the center of the end cover; the annular piston is arranged in the middle of the valve cavity; an inner hole of the annular piston is connected with the upper end of the valve rod sleeve; the lower end of the valve rod is inserted into the central through hole of the end cover and is in sliding connection with the central through hole; an annular groove is formed in the edge of the top of the valve core; a sealing ring is embedded in the annular groove; the sealing ring is connected with a valve opening in the lower end of an inner cavity of the interface pipe to form a valve structure.

A rotary spraying device. The invention relates to a sprinkler, in particular to a rotary spraying device for lawn and gardening. The utility model provides a rotary spraying device which is simple in structure, convenient to operate and saves manpower. Including the car body, liquid bag and adjustable mechanism, the car body is equipped with a rotary table, and the center of the top surface of the rotary table is provided with a boss. Outlet, the boss is located in the center hole of the liquid bag, the top surface of the rotary table is provided with a positioning column, the liquid bag is provided with a positioning groove, and the positioning column is appropriately arranged in the positioning groove; the adjustable mechanism includes a lifting rod, a center Platform, center rod, four pressure tables and four groups of rotary spraying mechanisms, the lifting rod is set in the center hole of the liquid bag and is located on the top of the boss, the center table is set on the top of the lifting rod, and the lifting movement is on the top of the liquid bag In the center hole, the center rod is arranged at the center of the top of the center table; the invention is convenient for processing and low in cost.

The invention provides an upper turbine driving rotary spraying device for ocean drilling platform pile shoe assistant lifting. The device comprises a shell body, a valve core, a valve rod, an end cover and a reset spring, wherein a valve cavity is formed in the middle of the shell body, a connection pipe is arranged at the upper end of the shell body, the pipe cavity of the connection pipe is communicated with the valve cavity, the end cover is in thread connection onto the lower end of the valve cavity, a through hole is vertically formed in the center of the end cover, a valve structure is formed by connecting the top edge of the valve core and the lower pipe mouth of the connection pipe, the valve rod is arranged at the lower end of the valve core, a blind hole is formed in the center of the valve rod, a turbine is arranged on the outer circle of the upper part of the valve core, a water inlet hole is formed in the lower part of the turbine, a water spraying hole is formed in the lower end of the valve rod, the water spraying hole is communicated with the water inlet hole through the blind hole, the outer circle of the lower end of the valve rod penetrates through the vertical through hole in the center of the end cover, the reset spring sleeves the outer circle of the valve rod, the lower end of the reset spring is connected with the upper end of the end cover, and the upper end of the reset spring is connected with a thrust bearing at the bottom of the valve core. The valve core rotates automatically during spraying and washing, the point-line spraying and washing in the prior art is changed into the rotating surface spraying and washing, the spraying and washing area is increased, and the spraying and washing effect is improved.

The invention provides a rotating disk type rotary spraying device for accelerating lifting of a pile shoe of an offshore drilling platform. The rotating disk type rotary spraying device structurally comprises a shell, an annular piston, a valve element, a valve rod sleeve, a rotary spraying disk, an end cover and a reset spring, wherein a valve cavity is formed in the middle of the shell, and the upper end of the shell is provided with a connector pipe; a pipe cavity of the connector pipe is communicated with the valve cavity; the lower end of the valve cavity is provided with the end cover; the center of the end cover is perpendicularly provided with a through hole; the annular piston is arranged in the middle of the valve cavity; an inner hole of the annular piston is connected with the upper end of the valve rod sleeve; the lower end of the valve rod sleeve is inserted in the through hole in the center of the end cover and is connected with the through hole in the center of the end cover in a sliding mode; the edge of the top of the valve element is provided with an annular groove, a sealing ring is embedded in the annular groove, and the sealing ring is connected with a valve port at the lower end of the inner cavity of the connector pipe to form a valve structure.

The invention relates to the field of agricultural machines, and discloses an insecticide feeding device of an agricultural insecticide spraying machine. The insecticide feeding device comprises an insecticide box, an insecticide feeding pump, spraying rods and spraying heads. The insecticide feeding pump is connected with the insecticide box, the spraying rods are connected with the insecticide feeding pump, and the spraying rods comprise one main rod and a plurality of branch rods which are connected with the main rod in a rotatable mode. Each spraying head is mounted on the corresponding branch rod through a universal joint, each universal joint is provided with a control valve, and each control valve is used for controlling the corresponding universal joint to rotate. Each spraying head is provided with a flow distributing cover, and each flow distributing cover is provided with a plurality of insecticide spraying holes. According to the insecticide feeding device of the agricultural insecticide spraying machine, the spraying heads and the spraying rods which are at various angles and can be adjusted and the flow distributing covers are used, so that the insecticide spraying operation area is increased, and crop insecticide spraying is even. The insecticide feeding device is reasonable in structure, convenient to use, high in working efficiency and suitable for large-area field operation.

The invention relates to an artificial supplementary pollination method for pomelos. The artificial supplementary pollination method comprises the following steps of S1, collecting pollen: collectinganthers of flowers in the large bud stage, placing the collected anthers on a smooth white paper, placing the pollen in an oven of 28 DEG C, enabling the pollen to be spread for 12-15h, after the white paper is folded, gently grinding the anthers with a grinding rod, so that the pollen can sufficiently falls down, and performing sieving through a 100-mesh sieve to obtain the pollen; S2, preparinga pollen diluent: continuing to dry the anther shells after the pollen falls down in the step S1 for 5-8h, grinding the anther shells into powder by a crusher, and making the pollen diluent. The method has the advantages that anther shell crushed substances are used as the diluent for electric fertilizing, the fruit bearing rate, the seeded fruit rate and the seeder fruit seed quantity are higherthan those in a fertilizing manner that talcum powder is used as the diluent, and an electric fertilizing manner that the anther shell crushed substances are used as the diluent is adopted, the fertilizing effect is basically consistent with that of the effect of point fertilization by a writing brush. The electric fertilizing efficacy is greatly improved.

The invention provides a lower vortex hole driving rotary spraying device for ocean drilling platform pile shoe assistant lifting. The device comprises a shell body, a valve core, a valve rod, an end cover and a reset spring, wherein a valve cavity is arranged in the middle of the shell body, a connection pipe is arranged at the upper end of the shell body, the pipe cavity of the connection pipe is communicated with the valve cavity, the end cover is in thread connection onto the lower end of the valve cavity, a through hole is vertically formed in the center of the end cover, a valve structure is formed by connecting the top edge of the valve core and the lower pipe mouth of the connection pipe, the valve rod is arranged at the lower end of the valve core, a blind hole is formed in the center of the valve rod, a water inlet hole is horizontally formed in the middle of the valve core, a rotary spraying hole is formed in the lower end of the valve rod, the rotary spraying hole is communicated with the water inlet hole through the blind hole, the outer circle of the lower end of the valve rod penetrates through the vertical through hole in the center of the end cover, the reset spring sleeves the outer circle of the valve rod, the lower end of the reset spring is connected with the upper end of the end cover, and the upper end of the reset spring is connected with a thrust bearing at the bottom of the valve core. The valve core rotates automatically during spraying and washing, the point-line spraying and washing in the prior art is changed into the rotary surface spraying and washing, the spraying and washing area is increased, and the spraying and washing effect is improved.

The invention discloses an environment-friendly air purifying spraying device, and relates to the technical field of air purification. The environment-friendly air purifying spraying device comprisesa casing and a hollow cylinder located therein; a spray nozzle is mounted on the surface of the hollow cylinder, and connection pipes rotatably connected with the casing are fixedly communicated withtwo ends of the hollow cylinder; a servo motor A is mounted on the casing, and the output end of the servo motor A is fixedly connected with the connection pipe on one side; a servo motor B is started through an external switch, a rotating shaft drives a sleeve to rotate, a swing rod drives a swing block under the action of centrifugal force to swing, and accordingly, the stirring area of the swing block and a protrusion is widened; the rotating shaft rotates to drive a throwing plate A and a throwing plate B to rotate, mixed liquid forms a circular flow, and accordingly, the homogenization effect of the mixed liquid is further improved; the mixed liquid enters the hollow cylinder and is sprayed out by the spray nozzle, and the hollow cylinder drives the spray nozzle under the action of the servo motor A to spray rotationally, and the mist spray area is widened.

The invention provides an upper vortex hole driving rotary spraying device for ocean drilling platform pile shoe assistant lifting. The structure comprises a shell body, a valve core, a valve rod, an end cover and a reset spring, wherein a valve cavity is formed in the middle of the shell body, a connection pipe is arranged at the upper end of the shell body, the pipe cavity of the connection pipe is communicated with the valve cavity, the end cover is in thread connection onto the lower end of the valve cavity, a through hole is vertically formed in the center of the end cover, a valve structure is formed by connecting the top edge of the valve core and the lower pipe mouth of the connection pipe, the lower end of the valve core is provided with the valve rod, a blind hole is formed in the center of the valve rod, a vortex water inlet hole is horizontally formed in the middle of the upper part of the valve core, a spraying and washing hole is formed in the lower end of the valve rod, the spraying and washing hole is communicated with the vortex water inlet hole through the blind hole, the outer circle of the lower end of the valve rod penetrates through the vertical through hole in the center of the end cover, the reset spring sleeves the outer circle of the valve rod, the lower end of the reset spring is connected with the upper end of the end cover, and the upper end of the reset spring is connected with a thrust bearing at the bottom of the valve core. The valve core rotates automatically during spraying and washing, the point-line spraying and washing in the prior art is changed into the rotating surface spraying and washing, the spraying and washing area is increased, the spraying and washing effect is improved, the pile shoe lifting is accelerated, and the work area transferring cycle of a petrol platform is shortened.

The invention provides a polyurethane elastomer product casting technology. The polyurethane elastomer product casting technology is operation completed through cooperation of a connecting plate, twofixtures, an air inlet, an air bag and a buffering hole. By means of the polyurethane elastomer product casting technology, the problems that in an existing mold preparation process, a demolding agentis usually sprayed onto the inner wall of a mold cavity with the help of a spraying gun; because the volume of the spraying gun head is larger, positions with smaller space in the cavity cannot be sprayed by the spraying gun head, and thus the situation that the sprayed surface is not complete is caused; because cavity structures of different molds are different, in the spraying process, staff need to adjust their own spraying action so that the staff can cope with the cavity inner wall in different positions; and in addition, the circumstances of surplus spraying or inadequate spraying can occur in part of the inner wall, and thus the situation that the thickness of the sprayed layer is different is caused can be solved.

The invention relates to the technical field of cleaning equipment for traffic roadblocks, in particular to efficient cleaning equipment for a traffic roadblock. The position of a upper cleaning assembly is adjusted through a lead screw assembly such that the upper cleaning assembly is attached to the roadblock, meanwhile, a reciprocating assembly based on disc rotation is adopted for driving a supporting base to rotate in a reciprocating mode, the roadblock moves relative to the upper cleaning assembly such that rapid and convenient cleaning work is completed,. The upper cleaning assembly adopts a servo motor to drive a cylindrical cam to rotate, and a rocker drives a cleaning plate crank through matching of a clamping block and a groove channel of the cylindrical cam, so that the angle of a cleaning plate is adjusted so as to be suitable for cone design of the roadblock; the upper cleaning assembly is also provided with a spray head for spraying and washing; a lower reciprocating assembly is arranged to serve as power for pumping and discharging the cleaning liquid to the spraying assembly, a crank throw rotates along with the lower supporting shaft while the lower supporting shaft rotates, a piston plate is driven by a sleeve and a piston rod to move left and right, the two one-way valves are matched, automatic pumping and discharging of the cleaning liquid are achieved, andthe cleaning liquid is injected into the spraying assembly.