95results about How to "Simplify cleaning steps" patented technology

The present invention provides a dresser for a chemical and mechanical polishing cloth wherein a bonding material for retaining diamond grit is not dissolved and contamination of chemical slurry caused by dissolving of metal or peeling-off of diamond grit is prevented from occurring. A sintered product constituting the dressing face 2a is obtained by mixing a bonding material 4 consisting of silicon and / or silicon alloy with diamond grit 3, and forming and sintering the mixture. A carbide film 5 generated by sintering silicon in the bonding material into diamond is formed on the surface of the diamond grit 3. Thereby, the diamond grit is firmly bonded with the bonding material, and the bonding material is not dissolved. As a result, the contamination of the chemical slurry or the peeling-off of the diamond grit is prevented.

The invention discloses a washing liquid applied to a station boiler and a washing method; wherein the washing liquid comprises the following components according to mass percent: 4-12% of ethylene diamine tetraacetic acid(EDTA) and ethylene diamine tetraacetic acid disodium salt, moderate amount of sodium hydroxide, 0.2-0.3% of methenamine, 0.1-0.2% of thiourea or di-o-tolyl-thiourea, 0.05-0.08% of mercaptobenzothiazole, 0.01-.0.3% of alkylphenol polyethenoxy ether(OP-10), 0.03-0.06% of octyl phenol polyethenoxy ether (TX-10), and the excess of water. In the method of the invention, processes such as acid cleaning, passivation and inhibition are organically combined, thus simplifying the cleaning sequences; as alkaline matter is generated by the washing liquid in the process of decomposition and incrustation dissolving, pH value of the washing liquid can be increased along with the washing process and the pH value is more than 8.5, thus realizing one-step completion of washing and passivation.

A method for production of an integrated circuit arrangement which contains a capacitor. A dielectric layer is structured with the aid of a two-stage etching process, and with the aid of a hard mask. In the case of an electrically insulating hard mask, the hard mask is removed again. In the case of an electrically conductive hard mask, parts of the hard mask may remain in the circuit arrangement.

The invention provides a camera with a self-cleaning function and a self-cleaning method thereof, which are characterized in that information is transmitted to a main chip of an ECU after an environment image is acquired by a photosensitive chip, the environment image is processed by the main chip, whether dirt exists or not is judged, and a power supply chip is controlled by an MCU according to the detected dirt level. Therefore, the piezoelectric ceramic is controlled to achieve dirt treatment on the surface of the front-end lens, the camera cleaning step is simplified, the system cost is greatly reduced, compared with a traditional cleaning device, installation and maintenance are more convenient, and the reliability of the system is greatly improved.

The invention discloses a self-propelled pneumatic pipeline cleaning machine and cleaning method. The cleaning machine comprises a pipeline cleaning mechanism and a monitoring device; the pipeline cleaning mechanism comprises a guiding plate, a braking mechanism, a cleaning head mechanism and a reciprocating driving mechanism; and the monitoring device comprises a controller, a first magnetic switch, a second magnetic switch, a first electromagnetic valve and a second electromagnetic valve. The cleaning method includes the steps that firstly, the self-propelled pneumatic pipeline cleaning machine is placed; secondly, the braking mechanism performs braking and the cleaning head mechanism performs radial expanding; thirdly, the inner wall of a pipeline is cleaned; and fourthly, when cleaningof the whole to-be-cleaned pipeline is completed, and the self-propelled pneumatic pipeline cleaning machine is taken out. The self-propelled pneumatic pipeline cleaning machine is simple in structure, capable of easily, conveniently and fast cleaning the inner wall of the pipeline and good in cleaning effect.

The invention discloses a method for cleaning a wire winding type filter element. The method comprises the following steps of (1) preparing a composite alkali washing solution and a composite acid solution; (2) soaking the wire winding type filter element; (3) scrubbing the wire winding type filter element; (4) flushing the wire winding type filter element; (5) leaching the wire winding type filter element; and (6) cleaning the wire winding type filter element. The method has the advantages that (1) greasy dirt and other silicate impurities can be effectively removed from the wire winding type filter element by soaking the wire winding type filter element, iron ions deposited in the filter element are removed through the composite acid solution, and the problem of blockage is thoroughly solved; (2) the cleaning steps are simple and easy to implement. The filter capacity of the filter element cleaned through the method can be recovered by over 80 percent, and an appearance color of the filter element is recovered to an original color; (3) a filter element body cannot be damaged in the cleaning process, the investment cost is low, the cleaning cost is only one eightieth to one fiftieth of the price of the newly-purchased wire winding type filter element, the production cost is greatly reduced, and the maintenance cost is saved.

The invention discloses an ICP dry-type cleaning method capable of increasing the ashing rate of a photoresist. The ICP dry-type cleaning method comprises the following steps of: 1) spin-coating a layer of the photoresist with a thickness of 1.0 to 3.0 microns on the polished sapphire surface, exposing the photoresist, and developing to obtain a photoresist mask with a regular graphical array; 2) etching the sapphire substrate by ICP to obtain a graphical sapphire substrate; 3) carrying out ashing treatment; 4) cleaning by the mixed solution of sulphuric acid and hydrogen peroxide; 5) carrying out epitaxial layer growth. The invention discloses a novel dry-type cleaning method capable of increasing the ashing rate of a photoresist and simplifying a cleaning step after ICP: charging the mixed gas with a certain flow ratio, of O2 and SF6 after the sapphire graphical etching, wherein the flow of SF6 occupies 5-15% of a total gas flow, in this way, an oxygen atom concentration in plasmas, and the generated amount of the activated photoresist can be effectively improved, and the increasing ashing rate of the photoresist can be increased, thus effectively improving the capacity of removing the photoresist after ion implantation.

The invention belongs to the technical field of industrial dust removing devices, and particularly discloses a washing-free dust removing device. The washing-free dust removing device comprises a box,wherein a first baffle plate and a second baffle plate are sequentially arranged inside the box from top to bottom; the first baffle plate and the second baffle plate divides the box into a liquid storage chamber, a dust removing chamber and a liquid collecting chamber which are sequentially distributed from top to bottom; the liquid storage chamber and the liquid collecting chamber are communicated through a pipe; the second baffle plate is arranged in an inclined way; a dust collecting chamber is formed in the low end of the second baffle plate; a one-way valve is arranged at the bottom ofthe dust collecting chamber; a plurality of liquid guiding pipes are vertically arranged on the lower surface of a cover body; airbags filled with air are connected between the bottoms of the liquid guiding pipes and the second baffle plate; an air pipe communicated with the dust removing chamber is arranged on the cover body; a dust detector is mounted on the side wall of the air outlet pipe; anair inlet pipe communicated with the dust removing chamber is arranged on the side wall of the box; an electric heating wire is arranged inside each airbag; and the electric heating wires are connected with a controller electrically connected with the dust detector. The washing-free dust removing device adsorbs and separates dust in waste gas with dedusting liquid, and can be used for a relativelylong time.

The invention provides a cleaning method for a beer filtration ceramic membrane. The cleaning method comprises: (1) pre-rinsing a ceramic membrane by using clear water; (2) adding a cleaning agent, and completely immersing the ceramic membrane in the cleaning agent, wherein the cleaning agent is a mixed solution of sodium hydroxide and sodium hypochlorite; and (3) rinsing the ceramic membrane by using clear water until the aqueous solution after the rinsing is substantially neutral. The invention further provides a cleaning apparatus for a beer filtration ceramic membrane, wherein the cleaningapparatus is connected to the inlet and the outlet of a ceramic membrane assembly through pipelines, a clear water tank and a cleaning agent tank are connected to the inlet of the ceramic membrane assembly through a cleaning pump, and the cleaning pump can pump clear water or a cleaning agent into a ceramic membrane, and rinse and soak the ceramic membrane. With the cleaning method of the presentinvention, the ceramic membrane cleaning time is shortened so as to improve the production efficiency of beer and reduce the production cost. The cleaning apparatus of the present invention is easy to operate, and can save a lot of time for the whole cleaning process.

The invention relates to a one-dimensional biochip, that biomolecular probes are immobilized on the inner surface of fiber core annular wall of a hollow-core microstructure fiber by utilizing nano magnetic beads in a segmented mode, and a manufacturing method thereof, used for detecting protein, nucleic acid and like biological molecules. The microstructure fiber biochip is composed of a hollow-core microstructure fiber, nano magnetic beads and a probe. The hollow-core microstructure fiber comprises a central air hole and at least one circle of peripheral air holes; the annular wall thickness of the central air hole is on nano scale; the diameter of the nano magnetic bead is less than 100nm; the biomolecular probe can comprises DNA, RNA, antigen or antibody and the like. The manufacturing method comprises steps of 1) preprocessing the nano magnetic beads and the fiber; 2) coupling the nano magnetic beads to the molecular probe; 3) sequentially immobilizing the nano magnetic beads on the fiber core annular wall of the microstructure fiber in a segmented mode by virtue of a magnetic field and a fluid; 4) modifying, cleaning and curing; and 5) storing. The biochip disclosed by the invention has the main advantages that the biochip can be used for detecting with stimulated radiation fluorescence and can greatly improve the sensitivity of detection.

The invention relates to an intelligent bottle scrubbing machine which comprises a machine frame, a conveying mechanism, positioning mechanisms and a cleaning mechanism. The conveying mechanism is arranged on the machine frame, the positioning mechanisms are distributed in the conveying direction of the conveying mechanism at intervals, and the cleaning mechanism is arranged on the front side of the conveying mechanism. The conveying mechanism is arranged in a left-right extended mode, and the conveying face of the conveying mechanism is inclined towards one side of the cleaning mechanism. The cleaning mechanism comprises a cleaning assembly for cleaning interiors of bottles and a driving assembly for driving the cleaning mechanism to do reciprocating motion towards the conveying mechanism. The intelligent bottle scrubbing machine is high in automation degree and high in cleaning efficiency. The intelligent bottle scrubbing machine has the advantages that the conveying mechanism is inclined towards one side of the cleaning mechanism, openings of the bottles fixed to the conveying mechanism are obliquely downward, cleaning liquid and waste residue will automatically flow out of the bottle openings after the cleaning mechanism scrubs the interiors of the bottles, the cleaning steps are simplified, and the cleaning effect is greatly improved.

The invention relates to an information display system, and particularly discloses a data updating terminal of a building material information display platform. The data updating terminal comprises awater storage tank and a cleaning device. The cleaning device comprises vertically-arranged sliding rails arranged at the two ends of a display screen. A first magnet and a second magnet are arrangedat the two ends of each sliding rail correspondingly, and each sliding rail is in sliding connection with a reciprocating magnet, wherein the first magnet is attracted to the reciprocating magnet, when a cleaning shaft moves downwards and sequentially passes through the upper section and the lower section of the sliding rail, the cleaning shaft rotates by a half circle. The first magnet and the reciprocating magnet at one end of the display screen are provided with matched water inlet rapid connectors, and the second magnet and the reciprocating magnet at the other end of the display screen are provided with matched water outlet rapid connectors. The side face of the cleaning shaft is provided with a first cotton strip and a second cotton strip which are oppositely arranged, and the side wall of the cleaning shaft is provided with a water leakage hole leading towards the first cotton strip. Through control over the mass of the cleaning shaft, the cleaning shaft can automatically reciprocate, and accordingly the display screen can be more conveniently cleaned.

A combined water cooler and hot beverage maker has a stand, a brewed beverage tank, a cold water compartment, and a dispenser actuator for dispensing cold water or brewed beverages. The tank includes a filter basket, a reservoir portion, and an outlet port. The reservoir portion is adapted to hold a brewed liquid, and the outlet port is positioned in substantially the bottom of the reservoir portion. The dispenser actuator is connected to the outlet port and to the cold water compartment and is biased to a closed position, but may be moved to an open position by a vessel for holding cold water or a hot beverage.

The invention discloses a device for removing impurities on the surface of a metal cutting wheel. The device for removing impurities on the surface of the metal cutting wheel comprises a machine body,wherein a transmission cavity is arranged below the inside of the machine body, a transmission device is arranged in the transmission cavity, a brush cavity is arranged above the transmission cavity,a brush device is arranged in the brush cavity, a working cavity with an opening facing to the right and communicating with the brush cavity is arranged on the right side of the brush cavity, and a driving cavity is arranged at the upper end of the brush cavity. The device can improve cleaning efficiency, simplify cleaning steps and ensure personal safety of cleaning personnel.

The invention relates to the technical field of medical instruments, and discloses a drainage device for female gatism. The drainage device comprises female underpants, an excrement drainage assembly and a urine drainage assembly, wherein the urine drainage assembly comprises a urine guide cover and a negative-pressure urine collection device; a urine inlet end is arranged at the top of the urine guide cover; an adhesive disc is arranged on the periphery of the urine inlet end; a liquid outlet is formed in the bottom of the urine guide cover and connected with a urine guide pipe; the tail end of the urine guide pipe is connected with the negative-pressure urine collecting device; the excrement drainage assembly comprises an excrement guide cover and an excrement collecting device; the excrement guide cover is provided with an excrement inlet end; a pasting disc is arranged on the periphery of the excrement inlet end; an excrement sensor and a cleaning device are arranged in the excrement guide cover; and the excrement sensor and the cleaning device are both electrically connected with a host computer. By means of the drainage device for female gatism, urine and excrement can be collected and treated in time, and discomfort and pollution of a patient are avoided.

The invention relates to a filter in the sewage treatment field, and especially relates to a superspeed filter. The superspeed filter comprises an electric water outlet valve, an electric cleaning water drainage valve, an electric cleaning alternation valve A, an electric cleaning alternation valve B, an emptying valve, an electric water inlet valve, a stirring motor, a water inlet seat, a stirring impeller, an apparatus main body water inlet, an apparatus main body water outlet, a water inlet, a treatment water outlet, a cleaning water outlet, an emptying port, an inlet water pressure sensor, a signal processor and a controller. In a technical scheme in the invention, further equipment of a backwashing pump is not needed in the filter cleaning process, so the cost is reduced, arrangement of pipelines in the cleaning process is reduced, no manual switching of the pipelines is needed, the cleaning step is simplified, occurrence of accidents is avoided, and the use safety is improved; and a filtering material selected in the invention is a lightweight fiber filtering material, so the quality of water filtered by the filtering material is stable, the size and the weight of the filter are reduced, the occupied space of the filter is saved, and the transportation cost is reduced.

The invention provides a motor with a cleaning device. The motor comprises a shell, an end cover, a fan, a fan cover, a base, a wire outlet box and a rotating shaft and is characterized in that a plurality of support ribs are arranged at the center of the bottom of the fan cover; fixing rods are arranged at the tail end of the support ribs; the fixing rods are located in the fan cover and are vertical to the bottom of the fan cover; a plurality of hairbrushes are arranged in the fan cover; each hairbrush comprises a brush handle, a brush head and a sliding pipe; the tail end of the brush handle is welded on the sliding pipe; the sliding pipe is hollow; a plurality of bar-shaped holes are formed in a pipe wall; the sliding pipe sleeves one corresponding fixing rod; the support ribs pass through the bar-shaped holes; the brush head faces the fan. In a use process, the sliding pipe is pushed toward the interior of the fan cover, and then the fan is rotated, so as to complete the cleaning. The motor with the cleaning device has the advantages of simple structure, convenience in operation, capability of quickly cleaning the motor fan and wide application scope.

The invention provides a watch washing method. By adopting alkaline electrolysis water with the specific pH and ORP as a main component of washing agents, a watch is washed at the normal temperature.The watch washing method is performed on the conditions of the room temperature, no mechanical function (like stirring and scrubbing) and the like, later rinsing with a large amount of clean water isnot needed, operation is easy, the washing efficiency is high, and the washing effect is good.

The invention relates to the field of sewage comprehensive treatment equipment, in particular to a black river channel sewage comprehensive treatment device which comprises a black river channel sewage treatment chemical spraying and stirring device, a black river channel biochemical treatment device, a black river channel sewage stirring and precipitating device, a black river channel filter device and a black river channel precipitate treatment device. The black river channel sewage comprehensive treatment device has the advantages that a plurality of procedures are reasonable set, responsibilities are coordinated and distributed for comprehensively treating black river channel sewage, and accordingly the black river channel sewage can be comprehensively treated by the black river channel sewage comprehensive treatment device.

The invention discloses a detergent production technology for improving washing quality. The technology comprises the steps of 1) adding modified acrylic resin, an emulsifying agent and a rust removerto a reaction kettle; and stirring; 2) adding tetrachloroethylene and a nonionic surfactant to another reaction kettle; stirring; then adding sodium carbonate, a degreasant and ethanol amine; and continuously stirring; 3) mixing solutions obtained in step 1) and step 2); 4) sequentially adding sulfuric acid, hydrochloric acid, nitric acid and phosphoric acid to a glass vessel; stirring; then dropwise adding hydrofluoric acid and ammonium bifluoride; stirring; adding potassium thiocyanate; and stirring; and 5) adding the solution obtained in step 3) to the solution obtained in step 4); addinga penetrating agent; and stirring. The industrial detergent is nonflammable and is capable of rapidly cleaning oil dirt on the surface of a metal workpiece; and the industrial detergent can be degraded in water. Therefore, the washing speed can be improved, and the washing steps are simplified; the operation is simple and convenient; in addition, the detergent is safe, environmentally friendly, and energy saving; the industrial production is conveniently carried out; and the applicable scope is wide.

A package substrate machining method is provided. The package substrate includes a ceramic substrate, a plurality of device chips arranged on one face of the ceramic substrate, and a coating layer made of a resin that covers the entire one face of the ceramic substrate. The package substrate machining method includes a first laser-machined groove formation step adapted to form, in the coating layer, first laser-machined grooves along scheduled division lines set up on the package substrate by irradiating a laser beam at a wavelength absorbable by the coating layer from the coating layer side of the package substrate; and a second laser-machined groove formation step adapted to form, in the ceramic substrate and after the first laser-machined groove formation step, second laser-machined grooves along the scheduled division lines by irradiating a laser beam from the ceramic substrate side of the package substrate.

The invention discloses an unmanned aerial vehicle topographic survey device, relates to the technical field of unmanned aerial vehicles, and solves the problems that most of lens protection assemblies of existing unmanned aerial vehicle survey devices are integrated and transversely mounted under lenses in a blocking manner, cannot be flexibly contracted and hidden, do not have an active defenseautomatic pop-up function, can block the vision field of the lenses and are poor in practicability. The unmanned aerial vehicle topographic survey device comprises a machine body, base plates, a motorand a measuring device, wherein two supporting connecting shafts are symmetrically supported between four cantilevers on the left and right of the machine body, two connecting rods are connected to the lower portions of the bottom of the two supporting connecting shafts in a hanging and rotating mode, and the tail ends of the four connecting rods are each connected with a slip ring in a rotatingmode; and four top poking plates are welded on convex blocks at the top ends of the four slip rings in a front-back opposite supporting manner. According to the invention, the four barrier plates canbe horizontally positioned and hidden at the top ends of the two base plates when not in use, so that shooting and measuring obstacles caused by the fact that the four barrier plates are normally opened and transversely blocked at the bottom of the measuring device are avoided.

The invention discloses a pigsty full-coverage cleaning device for livestock breeding in animal husbandry, which comprises a pig activity area positioned in a pigsty body, a manure collecting tank arranged below the pig activity area, a driving frame, a driving traction mechanism, an anti-overflow mechanism and a controller, and is characterized in that the ground of the pig activity area is uniformly provided with dirt falling holes communicated with the manure collecting tank; the driving frame comprises a driving frame body installed in the pig activity area in a matched mode, the width size of the driving frame body is the same as that of the pig activity area, and the driving frame body is connected with the driving traction mechanism. The device is unique in structure, pigs in the pigsty do not need to be driven out of the pigsty when the pigsty is cleaned, the problem that cleaning operation of cleaning personnel is hindered by the pigs is effectively solved, the problem that the health of the pigs is affected by cleaning devices used in the cleaning process is also effectively solved, therefore, the cleaning steps are simplified, the cleaning time is shortened, the cleaning efficiency is improved, and the labor intensity of workers is reduced.

The invention discloses a method for preparing CuPt alloy nanoparticles at room temperature. The method mainly comprises the following steps: 1) preparing a soluble Cu precursor and a soluble Pt precursor, and mixing according to a certain proportion; 2) adding a certain amount of potassium chloride and hydrochloric acid solution, and uniformly stirring; 3) adding reducing agent ascorbic acid, continuously stirring, and reacting at room temperature for 5-8 hours; and 4) performing solid separation and cleaning on a product obtained after the reaction, and drying to obtain solid powder, namely a high-purity CuPt alloy finished product. According to the method, a certain amount of hydrochloric acid solution is added into the reaction solution, so that the solubility of the reaction solution to CuCl is improved, the generation of CuCl impurities is avoided, and the product purity is improved. Due to the fact that the thermodynamic curing rate of growth of nanocrystals can be reduced through the low reaction temperature, CuPt alloy particles with small size (65-75 nanometers) and good monodispersity are obtained under the condition that no surfactant is added. The whole preparation process is easy to realize, and the later sample cleaning step is simple.

The invention discloses a filter screen cleaning control method of an air conditioner. The filter screen cleaning control method comprises the following steps that the accumulated running time of a fan is acquired; when the accumulated running time of the fan is larger than the time of the first preset, the running mode of the air conditioner is acquired; when the running mode of the air conditioner is the refrigerating or dehumidifying mode, and a water pumping device is started to draw condensate water in a water pan into a water tank so as to clean a filter screen through the condensed water in the water tank. The invention further discloses an air conditioner and a computer readable storage medium. The filter screen cleaning method of the air conditioner achieves the effect of reducingthe cleaning difficulty of the air conditioner filter screen.

The invention discloses a garden pool cleaning device, and relates to the field of garden equipment. According to the technical scheme, the garden pool cleaning device comprises a bottom frame, wherein universal caster are arranged at the four corners of the lower portion of the bottom frame, the universal casters facilitate movement of the device, the use convenience of the device is improved, a cleaning mechanism used for cleaning cobblestones is arranged above the bottom frame, a conveying mechanism used for collecting the cobblestones is arranged on one side of the cleaning mechanism, the inlet end of the conveying mechanism is located below the bottom frame, the other end of the conveying mechanism is an outlet end, and the outlet end extends to the position above the cleaning mechanism; and the garden pool cleaning device further comprises a sweeping mechanism used for sweeping the bottom of a garden pool and located below the bottom frame. The garden pool cleaning device has the beneficial effects that labor is saved, the cleaning steps are simplified, the cleaning efficiency is improved, and moss on the surfaces of the cobblestones is efficiently cleaned; and the structure is simple and use is convenient.

The invention relates to the technical field of water purifiers, and discloses a self-cleaning ultrasonic water purifier. The self-cleaning ultrasonic water purifier comprises at least one filter device (1), the filter device (1) is equipped with an ultrasonic cleaning device (2), the ultrasonic cleaning device (2) includes an ultrasonic vibration head (4) and a cleaning rod (5) connected to the ultrasonic vibration head (4), the ultrasonic vibration head (4) drives the cleaning rod (5) to vibrate, the cleaning rod (5) is disposed in the filter device (1), the ultrasonic cleaning device (2) is arranged below the filter device (1), the cleaning rod (5) is disposed above the middle part of the ultrasonic vibration head (4), and the cleaning rod (5) runs through the bottom of the filter device (1) and is disposed at the middle part inside the filter device (1). The self-cleaning ultrasonic water purifier provided by the invention avoids the trouble of frequent cleaning or replacement of filter core, simplifies the water purifier cleaning steps, improves the cleaning efficiency of the filter device, and ensures thorough cleaning of the filter core.

The invention discloses an automatic cleaning system for penicillin bottle plugs. A rotating drum and a net drum are arranged on a support, and a driving motor is used for driving the rotating drum to rotate to drive a spiral pushing roller in the net drum to rotate, the spiral pushing roller drives a spiral pushing blade to press the bottle plugs into a cleaning solution and soak and wash the bottle plugs while the bottle plugs advance in the net drum, and the bottle plugs can be completely soaked in the cleaning solution, so that the contact area of the bottle plugs and the cleaning solution is effectively increased, and then the cleaning effect for the bottle plugs is greatly increased; and meanwhile, a throwing net is arranged, a second annular gear is in transmission connection with the spiral pushing roller to throw out water on the bottle plugs in the rotating process of the net drum, and air is blown to the bottle plugs in combination with a ventilation pipe and a stirring pipe to accelerate the water to be separated from the bottle plugs, so that the water content of the cleaned bottle plugs is greatly reduced.

The invention discloses a respiration assisting device for a critically-ill patient. According to the respiration assisting device, a gas supply switching component can be automatically switched between main oxygen cylinder gas supplying and auxiliary oxygen cylinder gas supplying according to a size of pressure in a main oxygen cylinder; when a pressure value in the main oxygen cylinder is greater than a set value, a respiration outgoing gas control valve seat is subjected to gas supplying by the main oxygen cylinder; when the pressure value in the main oxygen cylinder is smaller than the setvalue, the respiration outgoing gas control valve seat is subjected to gas supplying by an auxiliary oxygen cylinder; automatic switchover of gas supply between the main oxygen cylinder and the auxiliary oxygen cylinder can be effectively achieved; and after a new main oxygen cylinder is replaced when the pressure value of the main oxygen cylinder is smaller than the set value, the gas supply switching component can enable the main oxygen cylinder to supply gas to the respiration outgoing gas control valve seat again and meanwhile the auxiliary oxygen cylinder is subjected to inflated treatment, the reliability and persistency of oxygen supplying can be effectively guaranteed, the problems of instant interruption and the like are prevented, and the stability of heart and lungs of a patient is improved.