72results about How to "Normal performance" patented technology

The invention discloses a high-temperature type polymer lithium ion battery and a preparation method thereof. The lithium ion battery mainly comprises a positive plate, a negative plate, a porous isolation membrane and electrolyte; the positive plate comprises lithium cobaltate, polyvinylidene fluoride, carbon nano-tube, and carbon black; the negative plate comprises synthetic graphite, sodium carboxyl cellulose, butadiene styrene rubber and carbon black; the porous isolating membrane is hybrid coated isolating membrane; the elecgtrolyte is composed of lithium salt, carbonate mixture and additives. The lithium cobaltate and the synthetic graphite have large D10 and small specific area, the side effect under the high-temperature condition can be weakened, and the battery performance is stabilized; the isolating membrane adopts the ceramic / polyvinylidene fluoride hybrid coated isolating membrane, thereby facilitating the battery molding and the thermal stability of the battery; the additive composition used by the electrolyte has the positive and negative film-forming protection functions, so that the dosage is low, the battery impedance can be reduced, and the cycle performance is convenient.

The invention provides a method for constructing a special underground continuous wall. The underground continuous wall comprises a wall body with indelible embedded barriers, wherein the wall body with the indelible embedded barriers is positioned between barrier-free wall bodies. The construction method comprises the following steps: (a) the normal barrier-free wall bodies on the left and the right sides of the wall body with the embedded barriers are constructed; (b) the operation of groove wall reinforcement is carried out on the grooving area of the wall body with the embedded barriers, and a reinforced structure and the barrier-free wall bodies on both sides form a relatively enclosed area; and (c) special grooving technological construction is carried out in the relatively enclosed wall body area. By adopting the method, the indelible barriers in the wall body of the underground wall can work together with the underground wall, thereby guaranteeing the integrality and the constructional feasibility of the underground continuous wall used as a permanent structure or a space enclosing structure, shortening man-hour, and saving the production cost.

The invention belongs to an illuminance detection device for photoelectric components and in particular discloses an intermittent illuminance detection device. The intermittent illuminance detection device comprises a pedestal, wherein a photoelectric component opening / closing device for placing a photoelectric component is arranged at the bottom of the pedestal; and a driver for driving the photoelectric component opening / closing device to rotate and driving the photoelectric component opening / closing device to extend out of the bottom surface of the pedestal is arranged on the pedestal. Theintermittent illuminance detection device has the advantages that: when the photoelectric component is detected, the illuminated surface of the photoelectric component is not sheltered completely, and when the photoelectric component is not detected, the illuminated surface of the photoelectric component is sheltered completely, so that the accuracy of the detection result is effectively improved; and at the same time, the intermittent illuminance detection device has certain dustproof and rainproof functions, so that overlong illumination duration of the photoelectric component is avoided and the service life of the photoelectric component is guaranteed; in addition, the intermittent illuminance detection device has a better self-checking function, so when the external illuminance does not need to be detected, the illuminated component can be placed in a sealed darkroom, and the normal using performance of the photoelectric component is guaranteed by adopting a standard light source to perform self-checking and correction.

The invention discloses an inner support body of a safety tire, which comprises an inner ring, a metal ring and a buffer ring which are orderly arranged along the direction from a hub steel ring to an outer tire. The outer ring surface of the metal ring is provided with a buffer ring installing groove and a buffer ring limiting groove, the inner ring surface of the buffer ring is provided with a limiting rim and a limiting platform, the limiting rim is correspondingly embedded in the buffer ring installing groove on the outer ring surface of the metal ring, the lifting platform is correspondingly embedded in the buffer ring limiting groove on the outer ring surface of the metal ring, the relative sliding of the buffer ring and the metal ring is limited, and the outer ring surface of the buffer ring faces toward the inner surface of the outer tire. The inner support body of the safety tire, disclosed by the invention, can efficiently overcome and resolve suddenly increased friction caused by tire explosion so as to maintain the stable driving and the direction-controllable status of automobiles, thereby avoiding danger of sudden tire explosion of automobiles at high speed. In addition, the invention has advantages of reasonable design, production and assembly, simple installation, easy operation, reliable quality, enhanced practical applicability and potential replication of the product.

The invention discloses a dead-time compensation method of a motor excitation device. A section is arranged near a phase current zero crossing point, and corresponding compensation is directly performed beyond the section according to the current direction. Pulse width compensation is performed in the section according to a cubic curve, and in other words, due to the fact that the larger uncertainty of polarity of currents is, the closer the zero point is, the compensation effect at the moment is correspondingly weakened so that influences brought by misjudgment of the polarity of the currents of the zero crossing point can be weakened. The invention further discloses a motor excitation device for achieving the method. The motor excitation device comprises an inverter circuit and a controller. The controller comprises a phase current sampling unit, an optoelectronic coding unit, a filtering unit and a zero crossing compensation processing unit. The device can solve the problem of waveform distortion at the phase current zero crossing point, and normal performance of a motor is guaranteed.

A structure which enables a cylindrical section (15) of a slinger (13) to be press-fitted into a slinger fitting surface (20) of an inner ring (19a) without impairing the sealing ability between the cylindrical section (15) and the slinger fitting surface (20). A continuous portion of the surface of an inner ring (19a) are ground at a time by a vertical rotary grinding stone after the inner ring (19a) is subjected to heat treatment, the continuous portion being composed of the portion of the slinger fitting surface (20), the portion of a chamfered section (25a), and the portion of the joint (27a) between the portion of the slinger fitting surface (20) and the portion of the chamfered section (25a). As a result, the entire continuous portion is formed as a flat smooth surface in which a corner which cannot be differentiated with respect to a cross-sectional shape thereof, that is, a corner which has a pointed edge, is not present.

The invention provides a high temperature resistant and aging resistant chloroprene rubber composition. The high temperature resistant and aging resistant chloroprene rubber composition comprises the following components: chloroprene rubber, zinc oxide, magnesium oxide, stearic acid, an anti-aging agent ODA, an anti-aging agent NAUGARD445, an anti-aging agent MB, paraffin, fast extruding carbon black N550, diatomaceous earth, semi-reinforcing carbon black N774, TegMer804, Paraplex A-8000, ethylene thiourea and an accelerant DM. By virtue of contrastive analysis of chloroprene rubber formula experiment, the formula performance can fully meet the standard requirement, the hot air aging resistance is prior to that of the traditional chloroprene rubber formula, and good performances can be preserved under the hot air environment of 125 DEG C. Intercooler rubber tubes are produced by using the chloroprene rubber formula so as to ensure normal use in an automobile of a turbocharging system; the performances of chloroprene rubber products are improved, so that the service life of the automobile is ensured, and the cost of the turbocharging system is reduced.

The invention discloses a height-adjustable photovoltaic component bracket, aims to solve the technical problems that the quantity of consumables for a longitudinal and transverse framework type bracket is large and the construction progress is low and belongs to the technical field of constructional engineering. The photovoltaic component bracket structure is characterized in that a U-shaped clamping piece, a plurality of photovoltaic components, a carrying plate and a support are arranged in sequence from top to bottom and are in threaded connection with one another through a long double-screw bolt; the photovoltaic components are symmetrically arranged on two sides of the long double-screw bolt respectively; the upper surfaces of the photovoltaic components are connected with the lower surface of a flanging of the U-shaped clamping piece; the lower ends of the photovoltaic components are arranged in grooves in the carrying plate; nuts are arranged on the long double-screw bolt above the U-shaped clamping piece and below the carrying plate, so that the U-shaped clamping piece, the photovoltaic components and the carrying plate are fixedly connected with one another; the lower end of the long double-screw bolt is in threaded connection with a screw hole in the top of the support; a non-threaded region for the long double-screw bolt is formed above the top of the support. The photovoltaic component bracket structure has the active effects that the photovoltaic component bracket structure is reasonable and convenient to mount, the consumables are saved, the mounting height can be adjusted, the appearance is tidy and regular, and the overall structure is safe and firm.

A display apparatus generates a high visibility optical signal, such as an ICON, the ICON comprising a symbol, shape, or other image-like representation. The ICON becomes visible at an observation point during an illumination ON-state. The ICON may be formed as a portion of display medium, for example as a machined portion of a mirror capable of forming images of a scene by reflection in normal operation. The visibility of the ICON in the illumination OFF-state from an observation point is sufficiently low such that the normal operation of the display medium is maintained. The display apparatus may be used in a blind spot warning system for a vehicle. Visible wavelength LEDs, RGB LEDs and / or diode lasers may be utilized as an illumination source. Ultrashort laser processing or other methods for material modification may be utilized to form microscopic features which distribute incident light, increasing the visibility of the optical signal at an observation point in an ON-state, with very low visibility in the OFF-state and minimal effect on the image in the display medium in the OFF state.

The invention discloses a mobile terminal testing method, device and system. The method is applied to the mobile terminal and comprises the steps of acquiring a pre-configured first connection parameter, wherein the first connection parameter comprises the name of a wireless hotspot; establishing connection with the wireless hotspot according to the first connection parameter; sending the identification information of the mobile terminal to a server based on the connection, so that the server determines a next test station according to the identification information, determines configuration parameters of a wireless router used for accessing the next test station, and sends the configuration parameters to the mobile terminal, wherein the test station comprises a shielding box, test equipment and a wireless router, and an antenna port of the wireless router is externally connected with an antenna and extends into the shielding box; and when the mobile terminal is placed in the shieldingbox of the next test station, accessing the wireless router of the next test station according to the configuration parameters, so that the test equipment in the next test station tests the mobile terminal.

The invention belongs to the technical field of feed, and in particular relates to cattle feed capable of improving meat quality, and a preparation method thereof. The cattle feed is prepared from Italian ryegrass, soybean straws, calcium bicarbonate, traditional Chinese medicine additives, trace element mixing materials, vitamin mixing materials and a condiment. The feed has the characteristics of high palatability, high nutrient content and easiness in absorption, and can improve the beef quality and improve the immunity of cattle.

A display apparatus generates a high visibility optical signal, such as an ICON, the ICON comprising a symbol, shape, or other image-like representation. The ICON becomes visible at an observation point during an illumination ON-state. The ICON may be formed as a portion of display medium, for example as a machined portion of a mirror capable of forming images of a scene by reflection in normal operation. The visibility of the ICON in the illumination OFF-state from an observation point is sufficiently low such that the normal operation of the display medium is maintained. The display apparatus may be used in a blind spot warning system for a vehicle. Visible wavelength LEDs, RGB LEDs and / or diode lasers may be utilized as an illumination source. Ultrashort laser processing or other methods for material modification may be utilized to form microscopic features which distribute incident light, increasing the visibility of the optical signal at an observation point in an ON-state, with very low visibility in the OFF-state and minimal effect on the image in the display medium in the OFF state.

The present invention discloses a raid (redundant arrays of inexpensive disks) equipment synchronization process eliminating method. First, a bit map is established which corresponds with several data blocks of the cheap raid equipment before initialization; when the cheap raid equipment is read or written in, corresponding operations is executed according to the value of the block which corresponds with the data block required by the reading and writing operations in the bit map. The present method eliminates the synchronization process when the cheap raid equipment is established. Thus the cheap raid equipment can function normally since establishment and a plurality of reading and writing operations during synchronization are eliminated, further enhancing the efficiency and protecting hardware of the cheap raid equipment. In addition, the life cycle of the equipment is clearer and puzzles about the synchronization of users are eliminated.

The invention discloses a battery box facilitating storage in the field of lithium battery equipment. The battery box comprises a box body, wherein the box body comprises a top plate, a bottom plate and a door body; the battery box further comprises a push frame, the push frame comprises a storage table, wing plates are vertically connected with the lower surface of the storage table, yield grooves penetrating through the bottom plate are formed in the wing plates, a locking groove for locking the door body is formed in one end, away from openings of the yield grooves, of the storage table, an opening of the locking groove is upward, and outside threaded holes are formed in the locking groove; notches are formed in the bottom plate and used for allowing groove root parts of the yield grooves to pass; tongue-and-grooves are formed in the top plate, tenon strips vertically penetrating through the tongue-and-grooves are arranged on the inner side of the door body, and inside threaded holes corresponding to the outside threaded holes are formed in the door body. When the battery box is used for accommodating batteries, the storage table is pulled out of the box body by pulling the push frame, the batteries are placed without obstacles, and then the storage table is pushed into the box body and the door body is locked; with the adoption of the scheme of the battery box facilitating storage, the batteries are conveniently placed, and the problem that the batteries in a conventional battery box are inconvenient to take is solved.

The invention provides a light-resistant leather greasing agent prepared from the following raw materials in parts by weight: 6-11 parts of acrylate, 3-7 parts of lauryl sodium sulfate, 4-6 parts of ammonium persulfate, 3-5 parts of polyoxyethylene, 2-6 parts of palm wax, 4-9 parts of fatty acid sorbitan, 1-5 parts of glycerinum, 2-4 parts of essence, 6-9 parts of ammonium citrate, 1-3 parts of triethanolamine, 4-6 parts of magnesium chloride, 2-7 parts of nitrocellulose, 1-3 parts of lauryl sodium carbonate, 4-7 parts of glacial acetic acid, 0.2-1 part of naphthalene, 2-5 parts of crylic acid and 2-6 parts of a light stabilizer. The light-resistant leather greasing agent has the beneficial effects of improving the mechanical property and hand feeling of leather and also maintaining normal property in the presence of light due to addition of the light stabilizer.

The invention discloses a high-sealing automobile fuel tank cover, comprising an oil inlet pipe, a surface of the oil inlet pipe is sleeved with a fuel tank cover body, the surface of the oil inlet pipe is provided with external threads, and the inner wall of the fuel tank cover body is An inner thread matching the outer thread is provided, a sealing device is fixedly connected to the center of the oil tank cover body, and the bottom end of the sealing device penetrates the oil tank cover body and the oil inlet pipe in sequence from top to bottom and extends to the oil inlet pipe Inside, the sealing device includes a sealing sleeve, the top of the sealing sleeve is provided with a hydraulic groove, a piston is movably connected in the hydraulic groove, and a hydraulic pressure is provided in the gap between the bottom of the piston and the hydraulic groove. Oil. By setting the sealing device, the sealing effect is achieved, which prevents the oil in the fuel tank from leaking due to shaking when the car is running, and at the same time prevents the dust in the air from entering the fuel tank, which ensures the cleanliness of the oil in the fuel tank and the normal operation of the car. Use performance.

The invention relates to the field of test experiments of automobile engines, in particular to a manufacturing technology of a carbon fiber loading rod for automobile engine testing and the carbon fiber loading rod. According to the manufacturing technology of the carbon fiber loading rod, multiple layers of prepreg are laid and distributed on a die, during each time of laying and distributing, different laying and distributing starting lines are selected to serve as starting ends, in the laying and distributing process, pre-compaction is carried out multiple times, and curing, die releasing, side cutting, grinding and assembling steps are carried out. Meanwhile, the invention discloses the carbon fiber loading rod. During each time of laying and distributing, the different laying and distributing starting lines are selected to serve as the starting ends, in the laying and distributing process, pre-compaction is carried out multiple times, gaps between layers of the prepreg of a carbon fiber can be effectively reduced, the whole strength of the carbon fiber loading rod can be effectively improved, bending or cracking phenomena appearing in the use process of the rod can be avoided, normal use performance of the carbon fiber loading rod is ensured, and unnecessary economic losses and personal injuries are avoided.

Belonging to the technical field of railway track circuits, the invention discloses a high-speed rail steel rail insulating elastic spacer, and aims to solve the problems of insufficient toughness and short service life of insulating elastic spacers in the prior art. The high-speed rail steel rail insulating elastic spacer comprises a bottom layer and a surface layer, the surface layer is an arc-shaped structure with a thick middle and two thin sides, the middle thickness of the elastic spacer is 10mm-15mm, both ends of the high-speed rail steel rail insulating elastic spacer are provided with a convex layer, the height of the bulge is 2-5mm, the surface layer is provided with a striated structure, which can be arbitrary shape, the bottom layer surface is provided with a concave channel structure, the striated depth is 1mm-5mm, and the bottom layer thickness is 3mm-10mm. The high-speed rail steel rail insulating elastic spacer is made of a glass fiber reinforced polyurethane material.

The embodiment of the invention discloses a mask group, an evaporation device and a method for monitoring the thicknesses of functional layers of a light-emitting device. The light-emitting device comprises the first functional layer to the Nth functional layer, and the mask group comprises a first mask to an Nth mask; the ith mask comprises an ith light-transmitting part and an ith shading part, the ith light-transmitting part comprises an ith functional layer opening and an ith functional layer monitoring opening, the ith functional layer opening is used for forming the ith functional layer through evaporation, the ith functional layer monitoring opening is used for forming an ith functional layer monitoring area through evaporation, the ith functional layer monitoring area is used for monitoring the evaporation thickness of the ith functional layer, and i is larger than or equal to 1 and smaller than or equal to N; and the vertical projections of the functional layer openings of any two masks in the mask group on the to-be-masked plane are at least partially overlapped, and the vertical projections of the functional layer monitoring openings of any two masks on the to-be-masked plane are at most partially overlapped. By adopting the mask group, film thickness calibration and troubleshooting of different stations can be realized, consumed time is short, and the working efficiency is high.

The invention discloses an extrusion mold using a reflux thimble and a cooling elastic plate to quickly cool a plastic profile. The extrusion mold structurally comprises a clamping plate, an upper guiding column hole, a mold core plate, a lower guiding column and an elastic plate device; a condensing tube surrounds the cooling elastic plate by one circle, meanwhile, by adopting a spiral surrounding mode, the condensing tube is cooled, thus the large temperature difference is formed between the condensing tube and a formed high-temperature plastic product, the mutual bonding probability is decreased, and the condensing tube and the formed high-temperature plastic product are easier to separate accordingly; meanwhile, the heat expansion phenomenon of the cooling elastic plate is avoided, pop-up delay of the cooling elastic plate due to friction is avoided, and thus the action of the cooling elastic plate is played normally; the air output sequence of the thimble and an air jacking tube is controlled, air blowing continuity is improved, the mode of air blowing is increased, and thus the plastic product falls off more easily; an air valve conducts air blowing and pressurizing through an air cavity tube, and thus the thimble overcomes an annular spring to be popped up; and meanwhile, the air jacking tube is in a communicating state through a sliding control plate, air starts to be blown between the plastic product and a mold core, on the basis of physical pushing of the elastic plate, the air blowing effect is improved, and the demolding efficiency is improved.

The invention discloses a brake disc polishing method. The brake disc polishing method comprises the following steps: (1) carrying out polishing pretreatment, namely firstly removing burrs existing onthe surface of a brake disc by adopting a burr removing tool before polishing; and (2) carrying out coarse grinding, namely polishing the surface of the brake disc by adopting an angle grinder provided with a 120# grinding wheel, wherein consistent polishing direction is guaranteed during polishing, and an included angle between the grinding wheel and the brake disc is 15-30 degrees. The brake disc polishing method disclosed by the invention has the advantages that the angle grinder provided with different types of grinding wheels is used for polishing the surface of the brake disc for multiple times, then the surface of the brake disc is further polished by using high-precision sand paper, polishing precision is high, the polished surface of the brake disc has excellent flatness and smoothness, and good using performance of the brake disc is guaranteed.

The invention discloses a table tennis training table. The training table comprises a table board, a stand column, an upper floor and a lower floor, wherein the stand column is fixed on the lower floor and penetrates through the upper floor to support the table board, the upper floor comprises a first upper floor and a second upper floor, the first upper floor and the second upper floor are correspondingly and two table areas of the table board are arranged in a corresponding mode, and the first upper floor and / or the second upper floor ascend or descend through a lifting device. According to the table tennis training table, the problem that different trainers need to change movements of playing table tennis according to change in height due to invariable heights of two ends of the table tennis table is solved; on the other hand, advantages of double-floors are made full use of to make the lower floor capable of collecting table tennis, thus solving the problem of difficulty in picking up table tennis.

The invention discloses a manufacturing method of a sealing ring used for fuel-tank caps. The manufacturing method comprises following steps: S100, internal mixing, wherein formula raw materials are subjected to internal mixing using an internal mixer; S200, open milling, wherein a product obtained in step S100 is subjected to open milling; S300, sulfuration; and S400, product finalized production. Compared with the prior art, the manufacturing method possesses following advantages: the obtained sealing ring is capable of satisfying related standers disclosed in SAE J200-2005<rubber material classification system>, and HG / T2196-2004< standard classification system for rubber products in automotive application>, the volume change rate in 150 DEG C*70h oil resistance test is 5% or lower, andcomprehensive technological indexes such as hot air aging and compression permanent deformation are achieved.

The invention provides a gas self-closing valve, and belongs to the technical field of gas. The problems that the weight is large and the production cost is high while the integrity is guaranteed are solved. The valve comprises a valve body, a valve cover and a diaphragm, an opening is formed at the upper side of the valve body, the valve cover is connected to the upper side of the valve body, the outer edge of the diaphragm is clamped between the valve body and the valve cover, a valve rod is fixed to the center of the diaphragm, the upper end of the valve rod extends out of the valve cover and is connected with a top cap, the valve cover comprises a cover head and a body formed by stamping a metal plate, and the lower end of the body is fixed through a spin rivet after being arranged outside the upper side of the valve body in a sleeving manner. A mounting hole with two through ends is formed at the top of the body, a connecting part matched with the mounting hole is arranged at the lower end of the cover head, and the cover head and the body are riveted and fixed after being punched upwards from the lower direction of the connecting part. The valve has the advantages of good integrality, light weight, low production cost and the like.

The invention relates to the field of computer encryption technology, and provides a data encryption method of saving operation resources of a computer. The method is applied to a sending end, and includes: determining key data in original data; encrypting the key data to generate encrypted data, wherein the encrypted data carry an encryption identifier; replacing the key data in the original databy the encrypted data; determining the original data after replacing as to-be-sent data; sending the to-be-sent data to a receiving end to enable the receiving end to obtain the original data after carrying out decryption on the to-be-sent data on the basis of the encryption identifier. The method can save the operation resources of the computer.

The invention discloses an intelligent camera. One side of a take-up box is fixedly connected with a sealing cover plate, the upper end of the storage square box is fixedly connected with a micro compressed air cylinder, the upper end of the micro compressed air cylinder is communicated with a one-way inflation valve, the lower end of the micro compressed air cylinder is communicated with the upper end of the storage square box through a sweeping pipe, an electromagnetic valve is arranged in the sweeping pipe, and a pressure gauge is arranged on the micro compressed air cylinder; a concave fixed shaft is arranged in the middle of the upper guide column; the fixed shaft is sleeved with a rotary drum, a first infrared sensor and a second infrared sensor are fixedly embedded in the wall surface close to one side of the fixed bent rod, an infrared emitter is fixedly embedded in the surface, facing the first infrared sensor and the second infrared sensor, of the rotary drum, and the included angle between the first infrared sensor and the second infrared sensor is not greater than 40 degrees; and a controller is fixed on the micro compressed air cylinder, receives signals of the first infrared sensor and the second infrared sensor and controls the action of the electromagnetic valve.

The invention aims to provide a cross-linking agent for reconstructed wellbore fracturing, belonging to the technical field of petroleum and natural gas yield increase. The cross-linking agent is prepared by mutual reaction of a boron compound, polyhydric alcohol and organic ligand, wherein the boron compound is one or two selected from borax and boric acid, the polyol is one or more than one selected from ethylene glycol, glycerol, n-butyl alcohol and amyl alcohol, and the organic ligand is one or more than one selected from mannitol, sodium gluconate, lactic acid, citric acid and triethanolamine. The invention further discloses a guar gum fracturing fluid. The cross-linking agent for reconstructed wellbore fracturing can achieve delayed cross-linking, and cross-linking time is adjustable; and the use amount of guar gum is reduced, the temperature resistance and shear resistance of the guar gum fracturing fluid are improved, the residue content is reduced, and reservoir damage is reduced.

A stuffed toy with removable arms, legs, and other parts uses magnets to allow easy attachment and removal. A magnet (10) interlocks with another piece (20)o prevent lateral movement or slippage of the magnets against the piece. Variously colored stuffed toys can be arranged together so that the user can mix and match variously shaped and colored pieces with variously shaped and colored main bodies. The stuffed toys can mimic actual limb rotation and positioning because the magnets permit stuffed toy pieces to rotate relative to one another once the pieces are attached via magnets.

The invention discloses a clean room air purifier. The clean room air purifier comprises a bearing plate. A square groove is formed in the top of the bearing plate, and the square groove position of the bearing plate is fixedly connected with a filtering cavity. A circular through hole is formed in the top of the filtering cavity, and the circular through hole position of the filtering cavity is fixedly connected with a conveying barrel. The top of the conveying barrel is fixedly connected with a sterilization layer. The top of the sterilization layer is fixedly connected with an air outlet. Acircular through hole is formed in the inner side of the air outlet. According to the clean room air purifier disclosed in the invention, due to arrangement of rotating rods and pull rings, the two sets of the arranged rotating rods can be taken out in the later-period using process, parts can be replaced conveniently, and the arranged air outlet and the arranged sterilization layer can remove bacteria in dust during usage; and moreover, the arranged filtering cavity can be matched with an arranged air inlet barrel, air in a clean room can be filtered smoothly, and using of the device can befacilitated.