40results about How to "Uniform dosage" patented technology

A fluid transfer device including a cartridge having a plurality of needles, an advancer operative to selectably advance any of the plurality of needles in the cartridge to a needle deployment position, and a syringe operative to convey fluid through the needle in the needle deployment position.

The invention provides a fireproof thermal insulation board. The fireproof thermal insulation board comprises an aerogel core material layer; reinforcing layers which are compounded on the upper surface and the lower surface of the aerogel core material layer; a resin edge sealing layer which covers the edge of the aerogel core material layer; and a reinforcing layer which is compounded with the aerogel core material layer through flame-retardant resin. Compared with the prior art, the fireproof heat insulation plate provided by the invention takes aerogel as a core material, adopts a specific layer structure, and realizes better overall interaction under a specific connection relationship; a compact, firm and tough composite material skin is formed on the surface of the product, the product is endowed with stronger heat insulation and sound insulation effects while the strength is improved, and a complex plane shape and a complex three-dimensional shape can be processed; moreover, the fireproof heat-insulating plate provided by the invention is provided with the resin edge-sealing layer, so powder leakage at the edge can be avoided, and the whole fireproof heat-insulating plate is more suitable for heat insulation inside precision equipment.

A piling operation method of a two-way mixing power spraying piling is realized by that two layers of positive spin mixing blades are arranged on the bit of an outside boring rod of a concentric inside and outside boring rod; two layers of reverse spin mixing blades are arranged on the bit of an inner boring rod of the concentric inside and outside boring rod. A power spraying mouth is arranged between the two layer mixing blades on the bit of the inner boring rod. The bit of the inner boring rod is arranged below the outside boring rod. In the process of the bit of the inner boring rod rotating into the earth reversely, the positive rotating blades of the bit of the outside boring rod play the function of ash pressuring and simultaneously pros and cons stirring to block the shooting passage of cement power and ensure the uniform distribution of the cement power in the piling. As a result of the positive and reverse rotating stirring, the stirring is more fully. The process includes drilling, power spraying, and stirring. In upgrading, stirring process, the rotating direction of the inside and the outside boring bits are changed, the bit of the outside boring rod is in the reverse direction, the bit of the inside boring rod is in the positive direction. Because of the functions, the piling quality is obviously improved.

The invention relates to primary-taste nori and a making technology thereof, and belongs to the technical field of nori. The primary-taste nori disclosed by the invention comprises the following raw materials in parts by mass: 1-5 parts of dried porphyra yezoensis and 0.1-0.5 part of composite seasoning fluid, wherein the composite seasoning fluid comprises the following raw materials in parts by mass: 20-24 parts of a soy sauce, 18-21 parts of white granulated sugar, 17-20 parts of glucose syrup, 11-13 parts of high fructose corn syrup, 4-6 parts of monosodium glutamate, 3-5 parts of edible salt, 1-3 parts of a yeast extract, 0.04-0.06 part of disodium 5'-ribonucleotide and 0.001-0.003 part of edible essence. The making technology of the primary-taste nori comprises the following steps of performing screening, supplying dried porphyra yezoensis, performing baking for the first time, feeding fluid for seasoning, performing baking for the second time and performing baking for the third time. The primary-taste nori disclosed by the invention is rich in nutrition, pure in taste, natural in material usage, hygienic and safe.

Disclosed is a ginger phenols extract microcapsule wherein the gingerol extract is bundled in a microcapsule, the microcapsule makes the semi-liquid state gingerol extract exist in the state of solid particles, and increases the constancy of the gingerol extract. The invention also provides the process for preparing the gingerol extract microcapsule.

The present disclosure relates to a water savable toilet, and more particularly, to a water savable toilet that can easily operate an operation switch of the water savable toilet including an enclosed water tank as well as automatically adjust air pressure within a tank and uniformly maintain a discharge amount of washing water regardless of variations of water pressure. The water savable toilet includes an opening and closing guide, a division, a washing water outlet pipe, a flash valve, and a toilet bowl. The opening and closing guide includes an opening and closing ball and is disposed inside the closed water savable toilet. The division is disposed around the opening and closing guide and divides an inner space of the water tank. The washing water outlet pipe is disposed at a lower end of the water tank. The flash valve is communicated with one side of a washing water outlet pipe. The toilet bowl is disposed below the flash valve. Since the closed water tank is installed to use water pressure and air pressure at the same time, the air pressure can be adjusted by automatically flowing into the closed water tank. A using amount of the washing water is uniform even if inlet pressure of the washing water is varied. The using amount of the washing water is remarkably reduced because the washing water can easily pass through an inverted U-shaped pipe even if the using amount of the washing water is low.

The invention discloses a flame-retardant plywood gluing device and a using method thereof, and relates to a gluing device. The device specifically comprises a workbench, a glue box arranged on the workbench, and a gluing roller arranged at the bottom of the glue box and used for gluing plywood, a glue uniformizing plate used for enabling glue to be evenly smeared on the plywood is installed at the bottom of the glue box, a lifting table used for containing the plywood is installed at the position, located below the glue box, on the workbench, and vertical supporting legs are welded to four corners of the bottom surface of the workbench. In a implementation process of the device, the glue on the surface of plywood is evenly smeared through the glue uniformizing plate, meanwhile, redundantglue accumulated at the bottom of the glue uniformizing plate is scraped into a glue recycling box to be stored, and therefore recycling of the glue is achieved, the smearing effect of the glue is effectively improved, waste of the glue is avoided as well, and a utilization rate of the glue is improved.

The invention discloses a calibrating method of an electrolyte analyzer. The calibrating method comprises the following steps of: sucking in an slope correcting liquid so as to clean a pipeline and completely discharging the slope correcting liquid; sucking in the slope correcting liquid so as to cover an electrode, and measuring an electrode millivolt value; sucking in an electrode drifting liquid so as to clean the pipeline and completely discharging the electrode drifting liquid; sucking in an electrode drifting liquid so as to cover the electrode, and measuring the electrode millivolt value of the electrode drifting liquid; calculating the average value of the measured electrode millivolt values and values (recorded before) of the slope correcting liquid and the electrode drifting liquid and then calculating a slopevalue; calculating the concentration of the electrode drifting liquid according to the calculated slope value and the measured millivolt of the electrode drifting liquid, comparing the concentration with a standard concentration; and if the difference is less than a set value, determining that the calibration is passed. By utilizing the calibrating method of the electrolyte analyzer, the slope value can be calculated by calibrating the values of the slope correcting liquid and the electrode drifting liquid once and combining the electrode millivolt value measured during the calibration, the real-time capability and precision in calibration are ensured, the slope correcting liquid and the electrode drifting liquid are calibrated once, so that the slope correcting liquid and the electrode drifting liquid are saved; and moreover the pipeline is cleaned before the calibration so that the cross contamination is avoided.

The invention discloses a method for preparing high-yield cellulose nano-microfilaments in a low energy consumption mode through enzyme-assisted mechanical grinding. The cellulose nano-microfilamentswith the high yield and the smaller and more uniform size are prepared in the low energy consumption mode through a mechanical grinding and enzyme after-treatment method, an enzyme pre-treatment, mechanical grinding and enzyme after-treatment method, or a compound enzyme pre-treatment and mechanical grinding method. The method has the advantages that (1) the yield of the cellulose nano-microfilaments is increased substantially; (2) the prepared cellulose nano-microfilaments have the smaller size and better size uniformity; and (3) meanwhile, energy consumption of the mechanical grinding process is substantially lowered, and the nanocellulose with the more uniform size is produced in industrial, efficient, environment-friendly and pollution-free modes.

The invention belongs to the technical field of fluid machinery and particularly discloses a multifunctional low-pressure spray irrigation nozzle. The multifunctional low-pressure spray irrigation nozzle comprises an adjusting tube, an air inlet connector, a connection tube, a switching device and a fixed base, wherein the adjusting tube is arranged on the inner side of a spray tube; one end of the air inlet connector stretches into a nozzle flow channel and is fixedly connected to the adjusting tube; the other end of the air inlet connector is arranged outside the spray tube; one end of the connection tube is connected to the air inlet connector, and the other end of the connection tube is connected to the switching device; the fixed base sleeves the outer side of a hollow shaft and is fixed; the switching device is fixed on the fixed base; the switching device comprises a switching device inner core, a switching device shell and a fertilizer-pesticide barrel switching device; an inner core hole I and an inner core hole II which are connected with each other are processed in the switching device inner core; a shell hole I, a shell hole II and a shell hole III are processed in the switching device shell; through regulation of connection manners of the holes in the switching device inner core and the switching device shell, the functions of pumping air or pumping fertilizers and pumping pesticides of the nozzle can be achieved.

The invention provides a composite sandwich panel. The composite sandwich panel comprises a plurality of surface layers and honeycomb core materials, wherein at least one surface layer is a fiber adhesive composite layer, the fiber adhesive composite layers are directly attached to the honeycomb core materials or the other surface layer, and fibers in the fiber adhesive composite layers are uniformly distributed. According to the composite sandwich panel, by designing the fiber adhesive composite layers to replace a traditional multi-layer structure of adhesive layers and fiber layers, the distribution of the fibers and an adhesive is reasonably controlled, so that the dosage of the adhesive is uniform, the tension and compression resistance enhancing effect of the fibers is retained, thehoneycomb core materials are directly attached, the bonding strength is good, forming is convenient and fast, and the automatic batch operation is suitable. The invention further provides a compositewall panel and a chassis made of the fiber adhesive composite layers.

The invention discloses a dragon fruit composite liquid fertilizer. Each liter of the liquid fertilizer comprises the following components: 15-25 g of urea, 10-20 g of potassium pyrophosphate, 5-15 g of potassium acetate, 1-3 g of zinc sulfate, 2-4 g of calcium nitrate, 0.2-0.6 g of magnesium sulfate, 0.1-0.5 g of boric acid, and 0.02-0.04 g of trace elements. The dragon fruit composite liquid fertilizer has the advantages that supply is carried out at any time according to a water-fertilizer rule required by crops, and the equalization of water volume and the fertilizer rate is guaranteed; the generation of soil borne disease can be directly and effectively controlled, and the disease is mitigated; the output is increased, the quality is improved, the labor intensity is reduced, and the economic benefit 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 belongs to the technical field of civil construction materials, and particularly relates to a method for determining the use amount of a coating material in coral aggregate modification treatment and a modification method. Through strict theoretical calculation, the coral aggregate is highly matched with an actual test result, the coral aggregate can be accurately treated according to different surface coating design thicknesses, uniform coating of different aggregates is realized, no redundant slurry exists, the aggregates cannot be connected into clusters, large-area field paving is not needed, the coating treatment effect is comprehensively guaranteed, and the waste of the coating material is avoided. The method solves the problems that in a coral aggregate modification method in the prior art, the use amount of coating materials is often difficult to determine, if the coating materials are too many, due to the fact that fine components exist in the coral aggregate, the coral aggregate can be connected together by the coating materials, paving and maintenance must be conducted, site resources are occupied, and meanwhile waste of the coating materials is caused to a great extent, and if the coating material is too few, the phenomena of large resistance and non-uniform coating during stirring occur.

The invention provides a honeycomb composite plate preparation method, wherein the honeycomb composite plate comprises packaging layers and a honeycomb core material. The preparation method comprises:coating the surface of a packaging layer with chopped fibers or a mesh felt made of chopped fibers; uniformly coating the packaging layer surface coated with the chopped fibers or mesh felt with an adhesive to form a to-be-molded pre-cured fiber adhesive layer; respectively adhering two packaging layers to both contact end portions of a honeycomb core material, wherein at least a packaging layeris adhered to one contact end portion of the honeycomb core material through a pre-cured fiber adhesive layer; and carrying out curing molding to form the honeycomb composite plate. According to the present invention, the surface of the packaging layer is coated with the chopped fibers or mesh felt, and the packaging layer surface coated with the chopped fibers or mesh felt is uniformly coated with the adhesive to obtain the fiber adhesive layer, such that the fiber and adhesive distribution can be reasonably controlled, the use amount of the adhesive is uniform, the reinforcing effects of tensile resistance and compressive resistance of the fiber can be retained, the honeycomb core material can be directly adhered, the molding is convenient, and the method is suitable for automated batchoperation.

The invention provides a femtosecond laser proton direct-writing system used for solving problems of present direct-writing systems such as low writing resolution ratio, unstable power control, large noise, profile depth error and limit in thickness requirements of an anti-corrosion agent. The femtosecond laser proton direct-writing system comprises a master controller, a proton beam generation system used for generating a proton beam of MeV energy level according to control of the master controller, a writing device used for writing a three-dimensional embossment structure on the surface of an anti-corrosion material workpiece by the utilization of the proton beam of MeV energy level, a follow-up platform used for placing the anti-corrosion material workpiece and moving to realize horizontal and vertical writing, and a follow-up platform control system used for controlling movement of the follow-up platform according control of the master controller and being connected with the master controller and the follow-up platform. By the above femtosecond laser proton direct-writing system, a three-dimensional embossment structure which has advantages of high aspect ratio, vertical and smooth side wall, low line edge roughness, high density and high precision is written by the utilization of the high energy proton beam.

The invention discloses a continuous quantitative suspension dosing device of liquid molluscicide, which belongs to the technical field of snail control of prevention and cure of schistosomiasis. The suspension dosing device comprises a glass rotameter (1), a flow regulating valve (2), a suspension pressure-regulating valve (3), a convection suspension chamber (4), a medicine storage chamber (5), a flowmeter medicine inlet (6), a liquid medicine suspension chamber conduit (7), a water inlet (8) and a suspension liquid medicine outlet (9). The flow of the liquid molluscicide of the medicine storage chamber can be controlled at 1.6-25.0L / h by the glass rotameter; the continuous quantitative molluscicide enters the convection suspension chamber and is formed into a convection vortex at the suspension liquid medicine outlet through the water inlet, and thereby, the even suspension liquid medicine can be formed; the even suspension liquid medicine is sprayed by a snail killing machine to kill snails, thereby achieving the advantages that the dose is even and stable, the pesticide effect is sufficiently produced, the snail killing quality is improved, the use is convenient, the labor and time are saved, the high efficiency is improved and the like, which lays the foundation for further controlling schistosomiasis.

The utility model discloses a dressing for hydrofluoric acid burn, which comprises a waterproof layer, an infusion pipeline, a diffusion layer, a plurality of diffusion films, a liquid storage layer and a muscle-friendly viscous layer, the infusion pipeline is arranged below the waterproof layer, and the input end of the infusion pipeline is matched with an infusion control device. The diffusion films are mutually connected with the output end of the infusion pipeline in the horizontal direction, the top surface of the diffusion layer is fixedly connected with the bottom surfaces of the infusion pipeline and the diffusion films, the liquid storage layer is arranged below the diffusion layer, and the bottom surface of the liquid storage layer is fixedly connected with the top surface of the muscle-friendly viscous layer. The dispersion film can fully soak a solution of calcium ions and magnesium ions on the dressing in the horizontal direction, the solution is not prone to transversely gathering on the diffusion layer and can permeate downwards in the vertical direction, diffusion is facilitated, the liquid storage layer is beneficial to further storage of liquid, and the dressing is high in effective persistence and lasting in medicine effect; and the dressing has strong diffusivity to the solution, and is beneficial to the recovery of the patient.

The present disclosure relates to a water savable toilet, and more particularly, to a water savable toilet that can easily operate an operation switch of the water savable toilet including an enclosed water tank as well as automatically adjust air pressure within a tank and uniformly maintain a discharge amount of washing water regardless of variations of water pressure. The water savable toilet includes an opening and closing guide, a division, a washing water outlet pipe, a flash valve, and a toilet bowl. The opening and closing guide includes an opening and closing ball and is disposed inside the closed water savable toilet. The division is disposed around the opening and closing guide and divides an inner space of the water tank. The washing water outlet pipe is disposed at a lower end of the water tank. The flash valve is communicated with one side of a washing water outlet pipe. The toilet bowl is disposed below the flash valve. Since the closed water tank is installed to use water pressure and air pressure at the same time, the air pressure can be adjusted by automatically flowing into the closed water tank. A using amount of the washing water is uniform even if inlet pressure of the washing water is varied. The using amount of the washing water is remarkably reduced because the washing water can easily pass through an inverted U-shaped pipe even if the using amount of the washing water is low.

The invention belongs to the technical field of conductive paste injectors, and discloses a portable enhanced conductive paste injector which is characterized in that the lower end of a special needle tube type injector is connected with a cap-shaped structure guide device through an injection port; the special tubular injector is provided with an injection port, a cylinder body and a handle, the injection port can be combined with a port of the cap-shaped structure guide device, and the cylinder body and the handle are fixed at the rear end of the injection port; the cap-shaped structure guiding device comprises a catheter, an injection port and a cap-shaped fixer; one end of the catheter is fixed on the cap-shaped fixer according to the arrangement sequence of the electrodes on the electroencephalogram cap and penetrates through the fixer, and the other end of the catheter is gathered towards the port. Scales are printed on the outer surface of the cylinder body opening; the handle is in a pistol shape, and the injection port is provided with a piston. The multiple catheters are used, injection work of multiple electrodes can be conducted at the same time, the number of times of injection is reduced, scales are printed on the outer wall of the syringe cylinder body, use amount control is facilitated, operation of experimenters is facilitated, time consumption is reduced, and adjustment of operators is facilitated.

The invention relates to the related field of gearboxes, in particular to intelligent variable-speed spraying equipment. The equipment comprises a machine body, moving cavities with outward and downward openings are formed in the left end wall and the right end wall of the machine body, and moving devices used for providing power for movement of the machine body are arranged in the moving cavities. Each moving device comprises a left moving rotating shaft and a right moving rotating shaft which are rotationally connected to the end wall of the inner side of the corresponding moving cavity, a crawler belt is arranged on the moving rotating shafts in a transmission connection manner, the lower end wall of the crawler belt makes contact with furrows, the machine body can move between the furrows, and spray heads are arranged at the left side and the right side of the machine body and spray chemical agents to crop at the left side and the right side; and therefore, automatic chemical agentspraying on the crop is achieved, a large amount of labor force is saved, the production efficiency is improved, the chemical agents with the corresponding concentration can be sprayed according to the step-by-step situation of the crop, the chemical agent amount obtained by the crop is uniform, and growth of the crop is better guaranteed.

An oil coating device for stamping a metal shielding cover comprises a bottom plate, a stamping machine is installed on the bottom plate, a machining table used for containing materials is arranged on the stamping machine, an installation box filled with lubricating liquid is arranged on the stamping machine, an air cylinder is arranged on the installation box, a stamping die is arranged on an output shaft of the air cylinder, and the stamping die is connected with the machining table. The air cylinder operates to drive the stamping die to move downwards to conduct stamping operation, a supporting frame is fixedly connected to the stamping machine, a loading frame containing stamping oil is arranged on the supporting frame, an extrusion plate is arranged on the loading frame in a sliding mode, a first elastic piece is arranged on the extrusion plate in a sleeved mode, a guide rod is fixedly connected into the loading frame, and the first elastic piece is arranged on the first elastic piece in a sleeved mode. A discharging pipe is arranged on the guide rod in a sliding mode. By pressing the material extruding plate, the piston moves downwards to open the discharging pipe to guide the stamping oil into the sponge cushion, the discharging pipe drives the sponge cushion to move downwards to smear the stamping oil on the material, and therefore rapid smearing is achieved, and it is guaranteed that the using amount of the stamping oil on the material is uniform.

The invention provides a honeycomb composite plate preparation method, wherein the honeycomb composite plate comprises packaging layers and a honeycomb core material. The preparation method comprises:mixing chopped fibers and an adhesive to form a mixed slurry to uniformly distribute the chopped fibers in the adhesive; uniformly coating one surface of a packaging layer with the mixed slurry to form a to-be-molded pre-cured adhesive composite layer; respectively adhering two packaging layers to both end portions of a honeycomb core material, wherein at least a packaging layer is adhered to oneend portion of the honeycomb core material through a pre-cured fiber adhesive layer; and carrying out curing molding to form the honeycomb composite plate. According to the present invention, the fiber and the adhesive are mixed, such that the fiber and adhesive distribution can be reasonably controlled, the use amount of the adhesive is uniform, the reinforcing effects of tensile resistance andcompressive resistance of the fiber can be retained, the honeycomb core material can be directly adhered, the molding is convenient, and the method is suitable for automated batch operation.

The invention discloses a small motor stator core welding structure, which comprises a stator core unit, wherein the stator core unit is sleeved on the sleeve pipe, and the stator core unit is formed by stacking and combining a plurality of core punching sheets; and each iron core punching sheet is composed of an iron core yoke portion of an annular structure and a plurality of iron core tooth portions integrally formed on the inner side of the iron core yoke portion at equal angles, and stop blocks are arranged at the ends of the iron core tooth portions. According to the small motor stator core welding structure, welding grooves and welding bumps are symmetrically arranged at the bottom and top parts of cross sections of the iron core punching sheets, so that the welding bumps can be matched with the welding grooves for alignment stacking during stacking welding, and meanwhile, the welding bumps can be directly subjected to welding hot melting, so that metal filling is not needed during welding, the welding operation is more convenient, the welding quality is improved, the metal medium consumption is guaranteed to be balanced during welding, and the welding quality and the welding flatness are improved.

The invention discloses toltrazuril suspension, which belongs to the field of veterinary medicines and comprises the following components in percentage by mass: 2.5 to 15 percent of toltrazuril, 15.0 to 30.0 percent of suspending aid, and 65.0 to 82.5 percent of auxiliary materials. The invention also discloses the preparation method of the suspension. The suspension is administrated by mixing with drinking water, the use is convenient, the suspension is suitable for mass administration, and the labor force and materials are saved; the dosage is accurate, the toltrazuril disperses uniformly in water, and the concentration of the medicine is uniform; the absorption of the toltrazuril is desirable, the effectiveness is quick, and the bioavailability is high; in addition, compared with liquid preparation, the toltrazuril suspension is very stable and maintains a dry state constantly in a process from production to storage, and the package is sealed to prevent the suspension from contact with moisture and air. The suspension does not contain organic solvent, so the possibility of adverse pharmacological effect that may be produced by the organic solvent is lowered and the safety is high.

The invention discloses a method for preparing high-yield cellulose nanofibrils with low energy consumption by using enzyme-assisted mechanical grinding, using mechanical grinding + enzyme post-treatment, enzyme pre-treatment + mechanical grinding + enzyme post-treatment or compound enzyme pre-treatment +Mechanical milling method with low energy consumption to prepare cellulose nanofibrils with high yield, smaller size and more uniform size. The present invention has the advantages of (1) greatly improving the yield of cellulose nano-microfibrils; (2) the prepared cellulose nano-microfibrils have smaller size and better size uniformity; ( 3) At the same time, the energy consumption of the mechanical grinding process is greatly reduced. In this way, industrialized, efficient, green and pollution-free production of nanocellulose with a more uniform size is realized.

The present invention provides a kind of progesterone membrane preparation, each sheet of which contains progesterone in 25-400 mg, and its preparation process. The progesterone membrane preparation is superior to available injection preparation, suppository and gel preparation, and has less side effect, less flow out, accurate medicine content, good flexibility, great tensile strength, high safety, high stability and good controllability.

A piling operation method of a two-way mixing power spraying piling is realized by that two layers of positive spin mixing blades are arranged on the bit of an outside boring rod of a concentric inside and outside boring rod; two layers of reverse spin mixing blades are arranged on the bit of an inner boring rod of the concentric inside and outside boring rod. A power spraying mouth is arranged between the two layer mixing blades on the bit of the inner boring rod. The bit of the inner boring rod is arranged below the outside boring rod. In the process of the bit of the inner boring rod rotating into the earth reversely, the positive rotating blades of the bit of the outside boring rod play the function of ash pressuring and simultaneously pros and cons stirring to block the shooting passage of cement power and ensure the uniform distribution of the cement power in the piling. As a result of the positive and reverse rotating stirring, the stirring is more fully. The process includes drilling, power spraying, and stirring. In upgrading, stirring process, the rotating direction of the inside and the outside boring bits are changed, the bit of the outside boring rod is in the reversedirection, the bit of the inside boring rod is in the positive direction. Because of the functions, the piling quality is obviously improved.

The invention discloses an aerosolization device. The device comprises a front shell, a back shell and a liquid box; the liquid box comprises a liquid box front lid, a liquid box rear lid and a liquidstoring body; the liquid storing body comprises a front wall, a rear wall and side walls; a groove is formed in the lower portion of the outer surface of the front wall so as to contain an atomizer plate, a through hole is formed in the groove, an injecting hole is formed in the side wall, and a partition plate is arranged in the liquid storing body; the front wall, the rear wall, the side walls,the partition plate and the bottom of the liquid storing body form a pressure regulating bin in an enclosing mode, and an opening is formed in the lower portion of the pressure regulating bin; the liquid box front lid and the liquid box rear lid are detachably connected and form a liquid containing cavity in an enclosing mode; two metals and a wire connecting the atomizer plate are arranged on the upper portion of the liquid box, and an atomizing nozzle is formed in the lower portion of the liquid box; a circuit board is arranged on the inner wall of the back shell; when the front shell and the back shell are closed, the metals are connected with the circuit board. According to the technical scheme, on the condition that when fiber absorbent cotton is not used, uniform dosage can be kept;in addition, the liquid box can be replaced conveniently and rapidly.