149results about How to "Guaranteed air pressure" patented technology

The invention discloses a production technique and apparatus of an insulating brick. The production technique comprises the following steps: (1) putting a porous brick in a container, and filling polystyrene foaming particles into brick holes or grooves which need filling an insulating material in the porous brick, wherein the position of the porous brick put in the container satisfies the following conditions: A. the position filled with the polystyrene foaming particles in the porous brick is aligned with a first steam inlet in the container; B. a first steam outlet and the first steam inlet in the container are respectively arranged on both sides of the porous brick; (2) introducing steam to the first steam inlet, so that the steam is gradually transited from one side to the other side of the porous brick and discharged from the first steam outlet under the push action of gas pressure; and (3) stopping introducing the steam when the polystyrene foaming particles are connected and cured with the brick holes or grooves, and taking the formed insulating brick out of the container. The invention can prevent the porous brick from cracking and the like, and ensure the structural strength of the whole insulating brick.

A wafer-grade vacuum encapsulation process for a micro-electro-mechanical system belongs to an encapsulation method for a micro-electro-mechanical system and solves the problems of the film deposition-based vacuum encapsulation process that the deposited film is thin, has small chamber and is easy to be damaged and the encapsulation device has leaked vacuum and reduced service life. The process sequentially comprises a step of depositing an air absorbent, a step of depositing a thin sacrificial layer, a step of depositing a cushion chamber sacrificial layer, a step of depositing thick sacrificial layer, a step of preparing an encapsulation cover, a step of etching a releasing hole, a step of removing sacrificial layer and a step of sealing. The process solves the problems that the existing encapsulation method has short vacuum retaining time, low sealing quality, large encapsulation dimension, incompatibility between the process and the standard IC process and high cost, thus ensuring the air pressure in the inner-most chamber; and simultaneously, the cost of the process is less than that of the vacuum encapsulation based on wafer-bonding process, and the process can realize production in general IC production factories and greatly promote the development and generalization of wafer-grade MEMES vacuum encapsulation technology.

The invention relates to an air vibration type expectoration instrument which belongs to the technical field of medical devices. The air vibration type expectoration instrument comprises a housing, an air chamber, a first drum membrane disc, a second drum membrane disc, a power machine, an induced draft mechanism, a drum membrane disc actuating mechanism, a vent pipe and a wearing device, wherein the housing comprises a frame; the air chamber is enclosed by a first side plate, a second side plate, a third side plate, a fourth side plate, a top plate and a bottom plate, an air cavity is formed in the air chamber, a first drum membrane disc cavity is formed on the first side plate, and a second drum membrane disc cavity is formed on the second side plate; the first drum membrane disc is assembled on the first drum membrane disc cavity; the second drum membrane disc is assembled on the second drum membrane disc cavity; the power machine is fixed on the bottom plate or the frame, and a power shaft of the power machine probes into the air cavity; the induced draft mechanism is fixed on the frame and communicated with the air cavity; the drum membrane disc actuating mechanism is positioned in the air cavity and connected with the power shaft; and the wearing device is used for enabling a patient to wear, one end of the vent pipe is communicated with the air cavity, the other end of the vent pipe is matched and connected with the wearing device, and blocking materials are arranged in the air cavity. The air vibration type expectoration instrument has the advantages that the power of the induced draft mechanism can be reduced under the premise of not affecting the drum membrane disc actuating mechanism; and the air vibration type expectoration instrument is not fastidious in using occasions, and can reduce the labor intensity of staff implementing treatment, and be conductive to expectoration.

The invention relates to a ceramic raw material dry method granulation production line and a production technology. The production line orderly comprises a raw material field, a raw material bin, a grinding mechanism, a granulation mechanism, a drying mechanism and a screening mechanism. A mixer is arranged between a discharge outlet of the raw material bin and a feeding inlet of the grinding mechanism. A discharge outlet of the grinding mechanism is connected to a dust collector through a powder iron separator. An output end of the dust collector is connected to a powder homogenization mechanism. The powder iron separator is an iron separator with at least two rotary iron separation channels. A feeding end of a reciprocating type fluidized bed dryer is provided with a distributing device. The lower end of the distributing device is provided with an airlock. A ventilation partition plate is arranged in a blast chamber. The blast chamber is divided into a drying zone and a cooling zone through the ventilation partition plate. The screening mechanism is a rotary screen with a demountable screen. The production technology has a high one-step granulation qualified rate, a low production cost and good drying effects.

The invention discloses an engine low-pressure simulation testing platform. The engine low-pressure simulation testing platform comprises an airtight case body. A temperature adjusting device, an air pressure adjusting device, and an engine cooling device are disposed on the case body. A dynamometer, a dynamometer cooling device, and an engine oil supplying device are disposed in the case body. The engine low-pressure simulation testing platform is capable of simulating a low-atmospheric-pressure environment of a plateau at a low-altitude area and provides convenience for engine test.

The invention discloses a smog removal device for laparoscopic surgery. The device comprises filtering and drying equipment and pumping equipment, wherein an exhaust port of one trocar is connected with the filtering and drying equipment and then connected with the pumping equipment, the exhaust equipment is then connected with an exhaust port of the other trocar, the pumping equipment is started to pump out gas in an abdominal cavity, and the gas is delivered back to the abdominal cavity after being filtered, dried and sterilized. By means of the device, toxic and harmful particles and components such as cell debris, impurities, aerosol, vapor and the like in surgery smog can be effectively removed, carbon dioxide in bodies is not absorbed, the gas purification rate is approximately 100%, so that the clear field of view can be kept for the surgery, the surgery can be conducted smoothly, the surgery time is effectively shortened, surgery risks are reduced, and the safety of patients is guaranteed; the gas in the abdominal cavity is recycled, pressure in the abdominal cavity is guaranteed, the smog in the abdominal cavity can be removed under the condition that the surgery is not stopped, the surgery time is shortened, and the surgery is conducted smoothly.

The invention provides a finish turning clamp with a detecting function. The finish turning clamp comprises a body, a gas detecting piston rod, a gas detecting sealing cylinder, an integrated expanding sleeve and an integrated drawbar, wherein the gas detecting piston rod and the integrated expanding sleeve are separately arranged at the two ends of the body; the integrated drawbar passes through the body for connecting the gas detecting piston and the integrated expanding sleeve together; the gas detecting sealing cylinder is sleeved on the gas detecting piston rod and is mounted at one end of the body; a gas detecting gasket is sleeved on the integrated expanding sleeve and is mounted at the other end of the body; gas pores are formed in the gas detecting piston rod, the gas detecting sealing cylinder, the body and the gas detecting gasket to form a gas flow passage; a to-be-detected workpiece is clamped by the integrated expanding sleeve, and is positioned by a gas outlet of the gas detecting gasket; gas flow enters the finish turning clamp from the gas detecting piston rod, and flows out from the gas detecting gasket; gas pressure changes at the gas inlet of the gas detecting position rod are monitored to detect whether the positioning surface of the to-be-detected workpiece is fitted or not; and a numerical-control lathe is matched with a joint robot for use, so that an automatic processing production line is formed, and therefore, unmanned processing is realized, and automatic production needs are met.

The invention discloses a system internal circulation supercharging filtration air purifier. The system internal circulation supercharging filtration air purifier comprises a shell, wherein the innerside bottom end of the shell is provided with a first filter chamber and a second filter chamber, the inner side of the first filter chamber is provided with an oblique filter plate, the top end of the first filter chamber is provided with a U-shaped pipe, one end of the U-shaped pipe is located on a position above the oblique filter plate, the other end of the U-shaped pipe is connected with a pressure valve, the bottom end of the pressure valve is connected with a gas transfer pipe by virtue of a pipeline, the gas transfer pipe penetrates through the top end of the second filter chamber andextends to the inner side of the second filter chamber, and the outer side of the gas transfer pipe is successively provided with a spiral sheet, a photocatalytic plate and an ultraviolet lamp from top to bottom. By arranging a top end circulation pipe, a pressurizing pipe and a reflux pipe, the problems that when the air purifier is used, the air purifier is difficult to increase the pressure ofthe internal purified air and to accelerate the air flow and circulation and the air circulation flow efficiency of the air purifier is influenced can be avoided.

The invention relates to a solar power generation system of a stable structure for severe weather, and the device comprises a pedestal, a supporting column, a solar panel, a direction adjustment unit, a drive unit, a supporting rod, a protection mechanism, a hinge unit, and two supporting units. The solar panel is provided with a bar-shaped opening, and the protection mechanism comprises a protection plate, a fixed rod, a sliding ring, and two side plates. Each supporting unit comprises an air cylinder, a piston, a third connecting rod, a fourth connecting rod, a supporting rod, and a ventilation pipe. The interior of the ventilation pipe is provided with a valve. The device provided by the invention maintains the internal air pressure of the air cylinder through closing the valve, enables the height of the valve not to be changed, guarantees the fixed angle of the solar panel during strong wind, and prevents the solar panel from waggling to cause damages to connecting parts. Moreover, the protection mechanism is pulled by the drive unit to rotate downwards, thereby enabling the protection plate to cover the surface of the solar panel, protecting the solar panel from being impacted by hail, effectively protecting the device, and enabling the solar panel to adapt to the severe weather.

An infusion apparatus capable of preventing blood from flowing back through sustained release of a micropore passageway comprises a drip chamber (1), wherein a floating body (2) is arranged in the drip chamber (1). The infusion apparatus is characterized in that the micropore passageway (3) which is communicated with a drip tube (9) connected with the drip chamber is arranged on the lower portion of the drip chamber (1). The infusion apparatus has the advantages that by utilizing a fiber stick as the medium, air pressure and residual liquid in the drip chamber are guaranteed to be communicated with liquid in the drip tube and blood pressure of the human body all the time, air is prevented from flowing into and out of the drip tube, liquid is guaranteed to drop out of the drip chamber in a certain period of time, the blood of the human body is prevented from flowing back in a certain period of time, more time is saved for a nurse, the nurse can freely replace an infusion bottle, and the apparatus is simple in structure, safe to use, good in trail effect in hospitals, and capable of delaying the blood return time by at least 15 minutes.

The invention discloses a colored spun yarn dyeing device uniform in color mixing, and relates to the technical field of colored spun yarn. The colored spun yarn dyeing device comprises a fixing box. The bottom of the fixing box is fixedly connected with a bottom plate. The bottom of the bottom plate is fixedly connected with a first motor. An output shaft of the first motor is fixedly connected with a first belt wheel. The surface of the first belt wheel is in transmission connection with a second belt wheel through a belt. A rotation shaft penetrates through the middle of the second belt wheel. The top end of the rotation shaft penetrates through the bottom plate and the fixing box and extends into the fixing box. The end, extending into the fixing box, of the rotation shaft is fixedly connected with a color mixing box. The colored spun yarn dyeing device uniform in color mixing solves the problems that an existing colored spun yarn dyeing device is poor in color mixing effect, and the colored spun yarn cannot be evenly dyed; the product dyeing quality is improved, color mixing and dyeing can be integrated, the colored-spun-yarn dyeing work efficiency is improved, and the work burden of people is reduced.

The invention provides a grinding device for a joint of a ceramic blank and an application method thereof and relates to the field of ceramic processing. The grinding device for the joint of the ceramic blank comprises a base. Supporting columns are fixedly connected to two sides of the top of the base, a clamping device is welded to the tops of the supporting columns, the clamping device comprises a supporting cover, a lifting mechanism is arranged on the inner side of the supporting cover, the lifting mechanism comprises a sliding cover, and the top of the sliding cover penetrates the bottomof the supporting cover and stretches into an inner cavity of the supporting cover. When the device is used, a ceramic blank body is placed to the top of a lifting table and the ceramic blank body isfurther lifted through the lifting table according to the shape of the ceramic blank body, so that the ceramic blank body can be clamped by the clamping device conveniently, and the ceramic blank body can be safely and conveniently fixed. A winching wheel can winch different positions of the ceramic blank body, so that the joint of the ceramic blank body is ground conveniently.

The invention provides a concentrated sulfuric acid purification device which is used for purifying concentrated sulfuric acid and comprises: a quartz glass assembly used for heating and boiling the concentrated sulfuric acid through electric heating, a raw material acid supply device used for supplying raw material acid to the quartz glass assembly and a cooling tank used for cooling acid liquorpurified by the quartz glass assembly. The quartz glass assembly is prepared from quartz glass, wherein the SiO2 content of the quartz glass assembly reaches 99.97% or above; the quartz glass assemblyis formed by welding through a full-closed field welding technology, the allowable working temperature is not lower than 1100 DEG C, and the linear expansion coefficient of the quartz glass assemblyat the temperature does not exceed 5.56*10<-7>. The concentrated sulfuric acid purification equipment is high in daily output, small in occupied area and low in power consumption, continuous production can be achieved, and the process yield can reach 95%; in addition, visual production is achieved, air pressure resistance and hot pressing performance are guaranteed, impact of force with a certainfrequency generated by the Karman vortex street effect is eliminated, and the service life of equipment is maintained.

The invention discloses a safe transportation device for valuable fragile articles. The safe transportation device comprises a box body, a containing cavity with an upward opening is formed in the boxbody, lower transverse moving grooves are formed in the lower wall of the containing cavity in a communicating and bilateral symmetry mode, and lower transverse moving blocks are arranged between thefront walls and the rear walls of the lower transverse moving grooves in a left-right sliding mode. According to the device, a transported valuable fragile object is protected by inflating an rubberair bag, the air bag is moved to be attached to the surface of the object, the soft air bag can be attached to the surface of the object according to the shape of the surface of the object, the objectcan be better protected, the air bag is filled with gas, the surface of the air bag is provided with a pressure detection device, the air pressure in the air bag is detected by the pressure detectiondevice, inflation is stopped when the specified air pressure is reached, certain air pressure is guaranteed without causing extrusion damage to the fragile article. The air in the air bag can be released when the fragile article is taken out. The transportation device with inflatable and deflatable air bag protection can safely and stably convey valuable fragile articles.

Provided are an automatic pressurization stopper pressing machine and an automatic pressurization stopper pressing method. The automatic pressurization stopper pressing method specifically includes the steps that an auger mechanism is adopted for distributing medicine bottles delivered by a net belt mechanism; a wheel poking mechanism is adopted for poking the medicine bottles distributed through the auger mechanism to bottle holders of the stopper pressing machine; the stopper pressing machine is adopted for controlling a bottle holder mechanism to ascend so that the medicine bottles can enter an inflation position; inflation stopper pressing assemblies of the stopper pressing machine are used for inflating the medicine bottles; the inflation stopper pressing assemblies of the stopper pressing machine are used for pressing stoppers of the medicine bottles; after stopper pressing operation is completed, the inflation stopper pressing assemblies return to original positions, and the bottle holder mechanism drives the medicine bottles to descend to a bottle discharge position; the bottle discharge wheel poking mechanism is used for poking the medicine bottles to a bottle receiving plate; the inflation stopper pressing assemblies are matched with the bottle holders in a continuous inflation and stopper pressing combination rotation process, and the steps are completed in sequence and circularly executed.

The invention provides an electric power switch equivalent pressure vacuum pumping and inflating device which comprises a vacuum pump set, a buffer, a vacuum box, a high pressure nitrogen bottle set and a PLC controller. The vacuum pump set is connected to the buffer through a main vacuum pumping tube, the main vacuum pumping tube is provided with a first solenoid valve, the vacuum box is internally provided with a first power switch and a second power switch, the buffer is connected to the first power switch through a first vacuum tube, and the buffer is connected to the second power switch through a second vacuum tube. The vacuum box comprises a box body, a box door is arranged on the right side of the box body, the box door is slidingly connected to the right side surface of the box body, and the box body is further provided with a driving component for driving the box door to slide up and down along the right side surface of the box body. In conclusion, the equal pressure control of the internal and external pressure difference of the power switches during the vacuuming and nitrogen filling process is achieved, the damage to the power switches due to a pressure difference is prevented, the overall structural design is reasonable, the operation is convenient, and the production of a modern power switch is guaranteed.

The invention relates to an intermediate frequency heating device for internal film coating of a steel-plastic composite pipe. The intermediate frequency heating device comprises a framework part, a guiding, moving and heating part, cylinders, air inflation sleeves, a fixing guiderail, a movable top plate and an oil cylinder, the framework parts is a square framework formed by a base, an upright and a cross beam, the guiding, moving and heating part comprises a moving suspension beam, an intermediate frequency heating body and cooling rings, the moving suspension beam adopts a motor drive mode to horizontally move lengthways on the cross beam through the guiderail, the horizontally arranged intermediate heating body is suspended on the lower bottom surface of the moving suspension beam, a plurality of heating through holes are horizontally formed in the intermediate frequency heating body, the cooling rings are respectively symmetrically arranged on the front side and the rear side of the intermediate frequency heating body, the cooling rings are arranged correspondingly to the heating through holes, the lower parts of the cooling rings are opened, the cylinders are respectively arranged in mirror symmetry on the two sides of the base corresponding to each heating through hole, and the air inflation sleeves are flexibly fixed at plunger head parts of the cylinders. The device is ingenious in overall conception and scientific in design, and solves the relatively large technical problems of the existing steel-plastic composite pipe in the processes of air inflating and film coating.

The invention discloses a spray head for a color spraying machine, and relates to the technical field of color spraying machines. The spray head comprises a feed pipe, a first spray pipe, a second spray pipe and a spray nozzle, wherein one side of the first spray pipe is movably connected with the feed pipe; the other side of the first spray pipe is movably connected with one side of the second spray pipe; the other side of the second spray pipe is movably connected with the spray nozzle; the middle section of the first spray pipe is movably connected with a control plug; the inner surface ofthe middle section of the first spray pipe is fixedly connected with one side of a spring layer; and the other side of the spray layer is fixedly connected with an elastic rubber layer. The spray headfor the color spraying machine is divided into the first spray pipe, the second spray pipe and the spray nozzle, in which the second spray pipe is also divided into a first pipe piece and a second pipe piece, and the first pipe piece and the second pipe piece are also movably connected through a sliding chute, a bolt, a reset spring and a limiting plug, so that the spray head adopting the designis simple to disassemble, convenient to wash and convenient in installation.

The present invention relates to a bed unit disinfection method and a kind of disinfecting machine for implementing said method. The method includes the steps of air extraction, charging ozone and internal circulation so as to implement complete disinfection, and said disinfecting machine includes ozone generator, disinfection air bag, air extraction compressor and control valve, etc.

The invention relates to a waste mineral oil recovery process, and especially relates to a waste mineral oil cycle flash evaporation catalytic cracking recovery process comprising the following steps: A, filtering precipitation; B, intermediate storage; C, cycle flash evaporation; D, catalytic distillation; and E, cooling recovery. The process recycles waste water and waste gas, makes full use of the waste water and the waste gas, and has the advantages of environmental protection, energy saving, safe storage, low cycle flash evaporation and catalytic cracking temperatures, full separation of light components, small amount of a catalyst, reduction of cracking loss of the light components, high recovery rate, and low production cost.

The present invention discloses a molding device of a lost-mold white mold, and the molding device includes a bracket, a molding fixing plate fixed to the bracket, a fixing mold fixed to the middle ofthe molding fixing plate, and a plurality of vertical upward guide posts arranged on the molding fixing plate, wherein a top plate is fixed to the tops of the guide posts and provided with a silo, aforming moving plate is connected to the guide posts in sliding, a moving mold is fixed to the bottom of the forming moving plate and opposite to the fixing mold; the fixing mold and the moving mold are respectively provided with a separate air chamber in which separate steam inlets and drainage ports for draining water and steam are arranged; the drainage ports are connected to a sealed drainageditch through a pipe; the fixing mold and the moving mold are respectively provided with a spray cooling pipe; the spray cooling pipe is extended into each part of a chamber wall; and a plurality of air plugs are arranged on the chamber wall between the air chambers of the fixing mold and the moving mold and the chamber. The present invention is a technical innovation in the molding field of the lost-mold white mold and solves the problem that the core of the white mold contains water and the molding quality of large and medium-sized complex parts is unstable, and the production cycle is shortened.

The invention relates to a waste discharge linkage circuit based on rail vehicle fire smoke detection. The waste discharge linkage circuit comprises a waste discharge power supply, a waste discharge device connected with the waste discharge power supply, a fire alarm controller, an in-vehicle fire smoke detector connected with the fire alarm controller, an under-vehicle fire smoke detector and a first fire alarm detection turn-off relay, wherein a normally closed contact of the first fire alarm detection turn-off relay is connected into a circuit between the waste discharge power supply and the waste discharge device in series. Compared with the prior art, the linkage waste discharge device based on a fire smoke detection system can realize that the waste discharge device is not influencedby the environment in the vehicle to close an air door when fire occurs in the vehicle or outside the vehicle; on the contrary, when no fire occurs in the vehicle or outside the vehicle, the waste discharge air door is kept in an open state, so that the air quality of the passenger room under a normal state or an emergency state can be effectively guaranteed, and the riding comfort degree of passengers is improved.