151results about How to "Smooth air intake" patented technology

The invention provides a window type air conditioner. The window type air conditioner comprises a shell body and a cross-flow fan. The front end of the shell body is provided with an air inlet and an air outlet located above the air inlet. The cross-flow fan is arranged in the shell body and provided with a wind wheel, a volute and a volute tongue which is located on the front side of the volute. The air inlet and the air outlet communicate through a fan air channel limited by the volute and the volute tongue. The projection, in the plane perpendicular to the rotation axis of the wind wheel, of the inner surface of the volute forms the volute profile line of the volute, and the volute profile line is divided into an upper section and a lower section through the point, closest to the rotation axis of the wind wheel, on the volute profile line. In addition, the upper section comprises three circular arc sections connected sequentially and smoothly. According to the window type air conditioner, due to the fact that the volute profile line of the volute comprises the three circular arc sections, the special streamline air channel design structure enables air inflow and air outflow of the window type air conditioner to be smoother, and accordingly noise generated by the window type air conditioner is significantly lowered.

The invention relates to an air intake and exhaust device and an aerostat with the same. The air intake and exhaust device is used for exhausting or supplementing air in the aerostat and comprises a one-way valve, a blower, a motor, a rolling shaft and two pull ropes, wherein the one-way valve comprises a housing, a base and a mounting flange; the blower is mounted on the mounting flange; the blower and the base are positioned on two opposite sides of the mounting flange; the blower can output wind power to open two hinges on the base; the motor is accommodated in the housing and fixed on the inside wall of the housing; the rolling shaft is driven by the motor to roll and is parallel to the plane where the mounting flange is arranged; and the motor drives the rolling shaft to rotate to drive the two pull ropes to be wound on or unwound from the rolling shaft, so as to open or close the two hinges. The invention has the advantage that air exhaust of the one-way valve and air intake of the blower can be realized in the same passage.

The invention relates to a low-noise window air conditioner. The low-noise window air conditioner comprises a shell defined by an indoor panel, an outdoor panel, a chassis and a housing, wherein the shell has a first space region near the indoor panel and a second space region near the outdoor panel inside; a first cross-flow fan of which the exhaust direction faces the indoor panel and an indoor heat exchanger which partially surrounds the first cross-flow fan are arranged inside the first space region; an indoor air outlet and an indoor air inlet are correspondingly formed in the indoor panel; a second cross-flow fan of which the exhaust direction faces the outdoor panel and an outdoor heat exchanger which partially surrounds the second cross-flow fan are arranged inside the second space region; and an outdoor air outlet and an outdoor air inlet are correspondingly formed in the outdoor panel. According to the low-noise window air conditioner, both an indoor fan and an outdoor fan adopt the cross-flow fans, compared with traditional axial flow fans and centrifugal fans, the cross-flow fans enable air inlet and air outlet of the window air conditioner to be smoother, and the noise generated by the window air conditioner is remarkably reduced.

The invention relates to the field of air purifiers, particularly to an air purifier with adjustable wind directions. The air purifier comprises an air purifier main body, wherein air inlets are formed in the bottom of the air purifier main body; an upper air outlet for discharging air upwards is formed in the top end of the air purifier main body; at least one side air outlet for discharging air from the side surfaces is formed in the side walls of the air purifier main body; a top grid is arranged at the end opening part of the upper air outlet; and a horizontal grid and a vertical grid which are arranged vertical to each other are arranged at the end opening parts of the side air outlets. According to the air purifier, the upper air outlet and a plurality of the side air outlets are adopted, so that the air purifier has a plurality of air outlet directions, and is good in ventilation, and the air outlet directions can be flexibly adjusted; air discharging is simultaneously carried out in a plurality of directions through one air purifier, so that the maximum use rate of the air purifier is achieved, the energy consumption is reduced, the floor space is saved, and the air purifier is economic and practical.

The invention discloses a range hood with a refrigeration function. The range hood comprises a machine body (1) and a chassis assembly(2); the machine body (1) comprises an engine body (1.1) and a cover plate (1.2); and the cover plate (1.2) covers the engine body (1.1). The range hood further comprises a semiconductor refrigeration device; the semiconductor refrigeration device is arranged in the engine body (1.1); the engine body (1.1) is provided with an air inlet (4), a cold air outlet (5) and a hot air outlet (6); and the hot air outlet (6) is formed in a baseplate (1.4) of the engine body (1.1). The range hood has an air cooling device integrated inside, and is relatively small in whole size, compact in structure, and occupies less space, blows air nearer to users and further improves user experience.

The invention provides an air inlet structure of a plastic wine barrel, belongs to the technical field of wine equipment, and solves the technical problem that stability of wine discharging is greatly affected by an existing wine spear. According to the air inlet structure of the plastic wine barrel, the plastic wine barrel comprises a barrel body, a barrel opening of the barrel body is fixedly connected with a wine spear head and a guide sleeve, and the guide sleeve is positioned in the wine spear head. The air inlet structure of the plastic wine barrel is characterized in that a joint is arranged in the guide sleeve and can move vertically, a plurality of guide projections which can guide the joint to move are arranged between the inner wall of the guide sleeve and the outer wall of the joint, an air inlet channel is formed between each two adjacent guide projections, the upper ends of the air inlet channels communicate with a center hole of the wine spear head, the lower ends of the air inlet channels can communicate with a cavity of the barrel body, and a sealing piece which can seal space between the guide sleeve and the joint is arranged between the guide sleeve and the joint. The air inlet structure of the plastic wine barrel has the advantages of relatively high stability and good wine discharging effect.

The invention relates to an air conditioner which comprises a shell, an evaporator and an air supply device and also comprises an air deflecting plate structure. The shell is formed by side panels, a rear panel, a base, an upper panel, a lower panel and a top cover; the evaporator is arranged in the shell; the air supply device is used for supplying air into the air inlet of the evaporator; the air deflecting plate structure is arranged between the evaporator and the air supply device; and the air deflecting surface of the air deflecting plate structure is arranged slantwise facing to the air flowing from the air inlet of the air supply device to the air inlet of the evaporator. Because the air deflecting plate structure is arranged between the evaporator and the air supply device, the field of air entering the evaporator can be more balanced under the air deflecting action of an air deflecting plate, the heat exchanged efficiency of the evaporator can be improved, and the energy consumption can be reduced.

The invention provides an air inlet pipeline system of a supercharged engine. The air inlet pipeline system comprises an air filter, a supercharger, an intercooler and an air inlet manifold, wherein the air filter is connected with the supercharger through an air filter outlet pipe, the supercharger is connected with the intercooler, and an intercooler outlet pipe is connected with the air inlet manifold through a throttle valve. According to the improvement, an air inlet by-pass valve is connected between the air filter outlet pipe and the air inlet manifold in front of the throttle valve, the air inlet by-pass valve is connected with the air inlet manifold through a by-pass valve pressure pipe, opening and closing of the air inlet by-pass valve are regulated through pressure in the air inlet manifold, so that direct communication or disconnection between the air filter outlet pipe and the air inlet manifold in front of the throttle valve is achieved. The air inlet pipeline system can solve the problems that when torque of the engine is small, the air inlet pipeline is long, air inlet resistance is large and response speed of the engine is low, and improves fuel oil economical efficiency of the small-displacement supercharged engine.

The invention aims at providing a flexible supercharging system of a diesel engine and a control method of the flexible supercharging system. The flexible supercharging system comprises the diesel engine, an exhaust gas turbine and a gas compressor, wherein the exhaust gas turbine is connected with the diesel engine through an exhaust pipe; the gas compressor is connected with the diesel engine through an air inlet pipe; the exhaust gas turbine is connected with the gas compressor through a hydraulic coupler; the air inlet pipe is provided with an intercooler; the exhaust pipe is branched to form an exhaust gas control pipe communicated with the atmosphere; the exhaust gas control pipe is provided with an exhaust gas control valve; the air inlet pipe located between the intercooler and the gas compressor is branched to form an air control pipe communicated with the atmosphere; the air control pipe is provided with an air control valve; an outlet of the gas compressor is provided with a pressure sensor; and a shaft where the exhaust gas turbine is connected with the hydraulic coupler is provided with a rotating speed sensor. By using the flexible supercharging system, the aims of outputting a large torque under a low working condition and protecting the rotating speed at a high working condition can be achieved, the efficiency of a complete machine can be increased, and the consumption of fuel oil under a full-working condition can be reduced.

The invention relates to an electric and automatic air distributor for ships. The electric and automatic air distributor comprises a box body. An air inlet device, an adjusting device and an air outlet device are arranged inside the box body. The air inlet device comprises an air inlet and an air inlet flow rectifier, wherein the air inlet is formed in the box body, and the air inlet flow rectifier is arranged on the inner side of the box body and connected with the air inlet. The air inlet flow rectifier is cylindrical. Ventilation holes are evenly distributed in the side wall of the air inlet flow rectifier. The adjusting device comprises an actuator and a valve plate. The valve plate is connected to the output end of the actuator and is in a left-right moving state inside the air inlet flow rectifier. The air outlet device comprises an air outlet and an air diffuser, wherein the air outlet and the air diffuser are arranged at the bottom of the box body, the air diffuser is installed at the air outlet, and five air outlet faces of the air diffuser are evenly provided with evenly-distributed ventilation holes. The actuator integrates an air quantity sensor and a temperature sensor and is connected with a computer control unit. The valve plate moves in the air inlet flow rectifier to adjust the effective ventilation length of the cylindrical flow rectifier so as to control the air inlet quantity and pressure, so that the temperature is adjusted, and the automatic adjustment function is achieved.

The invention relates to a method for recycling ink box with differential pressure valve. The method comprises the following steps: (1) removing gas-liquid separation membrane, sealing through holes, and opening a new small hole communicating with an ink storage chamber on the ink box; (2) injecting proper amount of ink through the small hole; (3) sealing the small hole and pumping proper amount of ink back through an ink supplying port. Ink is injected through the small hole when being recycled, and when the recycled ink box is used for printing, the small hole can be used as an air inlet hole to lead external air into the ink box, thus ensuring air inlet to be smooth and printing to be smooth, avoiding ink leakage when ink flows backwards, solving the technical problems that existing method for recycling ink box with differential pressure valve is complicated and that the recycled ink box is easy to leak. The invention also provides an ink box recycled by the above recycling method.

The invention discloses a charging nozzle of an inflation pump, used on an upper threaded part of a French nozzle. The charging nozzle comprises a center pipe seat, an outer shell and a nozzle cover, wherein a center hole is arranged at one end of the center pipe and connected with a charging pipe of the inflation pump, and a cavity is arranged at the other end; the inner edge of one opening at one end of the outer shell is provided with an inner fixed part, the other end of the outer shell is provided with a through hole, and the inside diameter of the outer shell is an outer ring sleeved on the center pipe seat; the outer circular surface of the nozzle cover is provided with a first ring groove corresponding to one end of the cavity, and the first ring groove is provided with an elastic gasket; the outer circular surface of the nozzle cover is additionally provided with an outer fixed part in threaded connection with the inner fixed part so that part of the nozzle cover is arranged in the cavity; the inner circumference of the nozzle cover is provided with an inner threaded pipe for the threaded part of a tire nozzle to be threaded in, the end of the inner circumference of the nozzle cover, which corresponds to the tire nozzle, is provided with a second circular groove, and the second circular groove is provided with an elastic gasket. The charging nozzle can be taken and used randomly by a consumer with special need.

The invention relates to a dry optical fiber ribbon loose tube air blowing molding device. The air blowing molding device is characterized by comprising a plastic extruding device and an air blowing device; the air blowing device includes an optical fiber ribbon guide pipe, a front positioning end cover, an air blowing device tank, a back positioning end cover and an air supply component connected with the air blowing device tank; the front positioning end cover and the back positioning end cover are respectively arranged at two ends of the air blowing device tank; and the optical fiber ribbon guide pipe penetrates through the whole air blowing device tank. The device is skillful in whole structural design, can satisfy the production of both optical fiber small sleeves and optical fiber ribbon large sleeves, and is convenient for disassembly and assembly.

The invention discloses a combined piston type electronic vacuum pump for an automobile. The combined piston type electronic vacuum pump comprises a valve body, an electric motor assembly, a noise reduction and exhaust assembly, an eccentric shaft assembly, two piston assemblies and two air inlet one-way valves. The valve body is provided with a center inner cavity, a motor mounting hole is formed in the upper end face of the valve body, the valve body is provided with a left ladder hole and a right ladder hole, and the left ladder hole, the right ladder hole and the motor mounting hole are all communicated with the center inner cavity; a combined type dynamic balance transmission eccentric shaft assembly is mounted in the center inner cavity, the center inner cavity is connected with the noise reduction and exhaust assembly for carrying out covering and sealing, and the electric motor assembly is mounted in the motor mounting hole; and the end face of the left ladder hole and the end face of the right ladder hole are connected with end covers for sealing, the piston assemblies and the air inlet one-way valves are arranged in the left ladder hole and the right ladder hole, and the electric motor assembly is mounted on the left ladder hole and the right ladder hole, and is connected with the eccentric shaft assembly to drive the assembly to rotate. A new transmission balance mechanism, a piston structure and the like are adopted in the vacuum pump, the assembly cost and the machining cost are reduced, the assembly safety is improved, sealing of the pump is obviously improved, the noise of the pump is obviously lowered, the service life of the pump is obviously prolonged, and various requirements of automobile use can be met.

The invention discloses a range hood with the cold wind blowing function. The range hood comprises a machine body (1) and a hood case assembly (2). The machine body (1) comprises a hood body (1.1) and a cover plate (1.2). The cover plate (1.2) is arranged on the hood body (1.1) in a covering mode. A flue (2.1) is formed in the hood case assembly (2). The range hood further comprises a box body (3) and a semiconductor refrigerating device. The semiconductor refrigerating device is installed in the box body (3). The box body (3) is installed in the machine body (1). The machine body (1) is provided with a wind inlet (4), a cold wind outlet (5) and a hot wind outlet (6). The hot wind outlet (6) communicates with the flue (2.1) through a pipeline (21). According to the range hood with the cold wind blowing function, a cold wind device is integrated into the machine body, and the range hood is small in overall size, compact in structure and small in occupied space. Blown cold wind is close to a user, and the user experience is good.

The invention discloses an efficient generator unit with two cooling air ducts. The efficient generator unit with the two cooling air ducts comprises a unit shell and an engine type generator. The engine type generator comprises an engine cooling air channel and a motor cooling air channel. An air inlet of the engine cooling air channel is formed in a starter pull disk. An air outlet of the engine cooling air channel is formed in a muffler air outlet rubber cover. A cylinder head and a muffler are arranged in a closed channel formed between the air inlet and the air outlet of the engine cooling air channel. Air inlets of the motor cooling air channel are formed in the top, the side face and the bottom of an engine case cover respectively. An air outlet of the motor cooling air channel is formed in a motor end cover. A cooling fan and a motor are arranged in a closed channel formed between the air inlets and the air outlet of the motor cooling air channel. Blades of the cooling fan are of an arc-shaped cover structure. The two cooling air channels are independent of each other, so that the air channels is simplified, arrangement of the air channels is optimized, and the number of parts is reduced; the blades of the cooling fan are of the arc-shaped cover structure, so the air supply amount is increased, and the cooling effect of the generator is improved jointly.

The invention discloses a heating furnace adopting biomass particles. The heating furnace comprises a burning chamber, a burning container located inside the burning chamber and a feeding device for conveying materials inside a bin to the burning container; the burning container comprises a burning box; a rotating fire grate and a fixed fire grate are arranged in the burning box; the rotating firegrate is located above the fixed fire grate and is rotationally mounted in the burning box; the fixed fire grate is fixed to the burning box; and a slag discharging opening is reserved between the fixed fire grate and the burning box and is used for discharging coke slag on the fixed fire grate through rotation of the rotating fire grate. During coke cleaning, the rotating fire grate rotates by 180 degrees in the fixed direction, the coke slag on the rotating fire grate and the burning biomass particles are thoroughly overturned onto the fixed fire grate, the biomass particles are burned continuously on the fixed fire grate, the biomass particles falling onto the rotating fire grate newly are ignited, when the rotating fire grate is overturned by 180 degrees again, the coke slag is pushedout of the slag discharging opening, and the flame cannot be extinguished in the coke cleaning process, so that nonstop coke cleaning is realized, and thorough coke cleaning is achieved; and variousbiomass particles can be used by the heating furnace.

The invention provides the intake device of an internal combustion engine, which comprises a plurality of air intake passages used for introducing air from an air filter into a throttle body. A connection supporting member (52) supported in an air cleaning box (44) comprises a first downstream air inlet passage part (61) and a second downstream air inlet passage part (62) used for communicating the flow outlet of a high-speed air intake passage (53) with the flow outlet of a low-speed air intake passage (54), and a confluence part used for converging the first downstream air inlet passage part (61) with the second downstream air inlet passage part (62). Through the connection supporting member (52), the high-speed air intake passage (53) and the low-speed air intake passage (54) are supported within an air cleaner (22).

The invention discloses a cylinder head for an arched combustion chamber and a gasoline engine employing the cylinder head. The cylinder head comprises a cylinder head body, wherein a combustion chamber face is formed on the inner side of the cylinder head body; the combustion chamber face has an arched face structure consisting of smooth curved surfaces; the surface to volume ratio of the combustion chamber can be reduced further, the working efficiency of the gasoline engine is improved, and gas flow which enters the combustion chamber is subjected to resistance in different directions, so that fuel oil mixed gas can be well formed into turbulent flow and combusted fully; therefore, the fuel oil consumption rate is reduced effectively, combustion is facilitated, and CH+NO(x) emission can be reduced, and gasoline power is increased; and the emission reaches or even exceeds the environmental protection agency (EPA) standard in America. The power of a gasoline engine with the maximum power of 3.0 kW (the rotating speed is 3,600 rpm) can be increased to 3.5 kW and the emission is reduced from 9.0 g / kW.h to 8.0 g / kW.h; the power of a gasoline engine with the maximum power of 3.5 kW can be increased to 4.0 kW and the emission is reduced from 9.0 g / kW.h to 8.0 g / kW.h; and the emission of the two gasoline engines meets the standard of 10 g / kW.h in the EPA3 stage; therefore, the power increment and the emission reduction of the gasoline engine are obvious, and environmental protection is facilitated.

The invention discloses a top suction type range hood of novel oil screens. The top suction type range hood comprises a box body and a smoke collection panel, wherein a smoke collection opening is formed in the smoke collection panel; an upper oil screen and a lower oil screen are mounted on the smoke collection opening; the upper oil screen and the lower oil screen are convex cover bodies formed by stretching the smoke collection opening in a direction to the box body; a smoke collection concave cavity is formed in a convex cover body; the smoke collection panel is tilted, so that the convex cover bodies are obliquely mounted on the smoke collection opening; a hollow oil guide framework is mounted at the edge of the smoke collection opening; an oil guide groove matched with the edges of the oil screens is formed in the oil guide framework; the edges at lower positions of the convex cover bodies are connected to an oil receiving box; an oil guide tank is formed between two adjacent smoke suction holes; the smoke suction holes on the upper layer and the smoke suction holes on the lower layer are staggered at an upper part and a lower part, so that the smoke suction holes on the upper layer are in upper-and-lower correspondence to the oil guide tanks on the lower layer; the oil guide tanks on the upper layer are in upper-and-lower correspondence to the smoke suction holes on the lower layer. Through the oil screens of the structure, the smoke collection volume of the smoke collection groove is increased; the oil smoke storage performance of the oil screens can be improved.

The invention discloses a plasma antibacterial air purification mask, and relates to the technical field of lung protection equipment. The plasma antibacterial air purification mask comprises a mask surface, an air guide pipe, a purification structure, an air inlet structure, an exhaust structure, a spring buckle, a bandage, an air hood and a fixing strip; through adoption of a purification structure, the gas generates plasma gas under the action of a plasma generator, plasma gas production is realized, air disinfection treatment is realized, air is purified, and the purity of air is increased; through adoption of the air inlet structure, jacking of extrusion stem is conducted, a sealing plate is separated from the port of an air inlet cylinder, smooth air intake is realized, when the maskis not used, protruding points are disengaged from positioning grooves, the sealing plate can seal the end opening of the air inlet cylinder under cooperation of sealing springs, dust and viruses canbe prevented from entering the mask when the mask is not used, the cleanliness of the mask is guaranteed, active air inlet is achieved under cooperation of an air inlet fan, it can be guaranteed thatthe air inlet path is single, and the air inlet purity is guaranteed.

A mixed flow fan comprises a motor, a casing, an impeller, guide vanes and a flow collector. The guide vanes are coaxially and fixedly arranged on the inner side of one end of the casing; the motor isarranged in the center of a hub of the guide vanes; an output shaft of the motor is fixedly connected with the center of the impeller; the flow collector is arranged on the inner side of the other end of the casing, and the flow collector and the impeller are on the same side; the hub of the guide vanes and the hub of the impeller have the same diameter. The variable concave-convex casing line provided by the invention is formed by tangency of a section of concave arc and a section of convex arc, so that the included angle between the inlet and the outlet and the rotating shaft is zero, meanwhile, a large diameter difference between the inlet and the outlet of the impeller can be ensured, and the airflow pressure is increased by fully utilizing centrifugal force. By the adoption of the design, the size of a non-acting area is reduced, airflow axially enters the non-acting area, energy is obtained in the impeller and converted into axial flow from inclined upward flow, then part of kinetic energy of the airflow is converted into pressure energy in the guide vanes, and airflow pressure is improved.

The invention provides a wet type dust remover adopting spiral spraying, belongs to the field of operation technologies, and solves the problem that an existing wet type dust remover is inconvenient to use and maintain. The wet type dust remover comprises a water storage tank, a vertically-arranged outer pipe and an inner pipe at the axis of the outer pipe and is characterized in that a first partition is spirally arranged relative to the axial line of the outer pipe is arranged between the outer pipe and the inner pipe, the first partition is hermitically and fixed connected with the inner side of the outer pipe and the outer side of the inner pipe, and a first channel is spirally arranged relative to the axial line of the outer pipe is formed between the outer pipe and the inner pipe; anair inlet pipe communicated with the upper port of the first channel is fixedly connected to the top of the lateral wall of the outer pipe, a water inlet pipe is fixedly connected to the air inlet pipe, and the water outlet of the water inlet pipe is located in the air inlet pipe; the lower port of the outer pipe can be sealed by liquid stored in the storage tank. The wet type dust remover has the advantages that a spraying head is not needed, water is directly supplied into the air inlet pipe through the air inlet pipe, and the phenomenon of spraying head blocking is avoided.

The invention discloses a triple purification type motorcycle air cleaner. The inner part of a shell is divided into a front cavity and a rear cavity through a partition, and a separating cylinder (5) is arranged in the front cavity of the shell. An air inlet is formed in the front wall at the upper end of the separating cylinder (5) and communicated with the rear end of an air inlet pipe (3). An air guide cylinder (7) is arranged in the separating cylinder (5), and a spiral-flow type exhaust fan (8) is mounted at the inner top of the air guide cylinder (7). The rear cavity of the shell is divided into an upper expansion chamber (A) and a lower air outlet chamber (B) through a filter element (9), and the front end at the upper part of the expansion chamber (A) is communicated with an air outlet (7a) formed in the rear wall of the upper end of the air guide cylinder (7) through a drainage channel (10). The triple purification type motorcycle air cleaner can effectively remove dust and particles in air through three times of purification including adsorption, cyclone separation and filtration, can ensure smoothness of air inflow, has the characteristics of being skillful in design, simple in structure and low in cost, and is suitable for various motorcycles.

The invention discloses an oil screen device of an European style range hood, which comprises an outer oil screen part and an inner oil screen part, wherein the inner oil screen part is arranged on the inner side of the outer oil screen part; an oil screen body is formed by the inner oil screen part and the outer oil screen part integrally, and comprises a main air inlet surface and two side air inlet surfaces connected with the two sides of the main air inlet surface respectively; the main air inlet surface is arranged obliquely; an included angle formed between the main air inlet surface and a horizontal plane is 5-85 degrees; air inlets in the inner oil screen part of the main air inlet surface are positioned above air inlets in the outer oil screen part of the main air inlet surface; air deflectors are obliquely arranged on one side of each air inlet in the inner oil screen part of the main air inlet surface; and an included angle formed between each air deflector and a plane of the inner oil screen part of the main air inlet surface is 20-50 degrees. The oil screen device of the European style range hood is smooth in air intake; a suction force of the range hood is not affected; the phenomena that much oil fume runs away and is not sucked are avoided; and the volume of an oil cup can be increased, thereby reducing the oil dumping times and the cleaning times of the oil cup.

The invention provides an oil fume filtering method by a metal oil strainer and an easy-cleaning oil strainer adopting the method. The invention is characterized in that the oil strainer can be an one-layer or multi-layer structure; one side of a strainer strip is turned and the other side is raised, and a mould punching shaping is adopted to shape the strainer, and air enters from a side face. If the strainer has a multi-layer structure, the oil strainer has various oil fume filtering methods so as to enhance oil filtering efficiency. The invention not only has elegant appearance, but also can enhance the separation degree of grease, and the air intake and guiding are easy, and both oil-dipping and leaking can be avoided, and the oil strainer cannot be jammed and oil guiding and returning are also quick. And the strainer strips can be easily cleaned. The invention is convenient and practical.

The utility model discloses an oil-bath type dust removal structure of a motorcycle air cleaner. An upper end cover (1) and a lower end cover (2) are interlocked to form a shell of the air cleaner, and a front cavity and a rear cavity are formed in the shell. A separating cylinder (5) is arranged in the front cavity of the shell, and a liquid storage chamber (6) used for storing engine oil is formed in the bottom of the front cavity of the shell. The separating cylinder (5) is in a cone shape with the large top and the small bottom, and an air inlet is formed in the front wall at the upper end of the separating cylinder (5). An air guide cylinder (7) is arranged in the separating cylinder (5), and a spiral-flow type exhaust fan (8) is mounted at the inner top of the air guide cylinder (7). An air outlet (7a) communicated with the rear cavity of the shell is formed in the rear wall at the upper end of the air guide cylinder (7). The oil-bath type dust removal structure can effectively remove dust and particles in air through three times of purification including adsorption, cyclone separation and filtration, so that the air flowing to an engine is clean, the service life of the engine is greatly prolonged, and the smoothness of air inflow can be ensured.

The invention discloses a dust-proof filter mask which comprises a mask body and fixing bands. The mask body and the fixing bands are connected. The mask body comprises a breathable outer layer, a filter layer and an inner layer, the breathable outer layer, the filter layer and the inner layer are connected in sequence from outside to inside, the inner layer comprises an edge part and a middle part which are connected with each other, the middle part comprises an upper flat plate body, the upper flat plate body corresponds to the position of the nostrils, a nostril air inlet one-way valve is arranged on the upper portion of the upper flat plate body, and a nostril air outlet one-way valve is arranged on the lower portion of the upper flat plate body. The nostril air inlet one-way valve comprises a nostril air inlet valve groove and an air inlet rectangular hole which are matched with each other, the air inlet rectangular hole is covered with a nostril air inlet valve sheet, the nostril air outlet one-way valve comprises an air outlet valve groove and an air outlet rectangular hole, the air outlet rectangular hole is covered with a nostril air outlet valve sheet, and the air outlet valve sheet is connected with the air outlet valve groove in the left side or the right side of the air outlet rectangular hole. The dust-proof filter mask is low in inhalation and exhalation resistance and suitable for being used by a wearer requiring the mask with a plurality of layers and the large inhalation resistance of the mask, and guarantees the body health of a user.

The invention discloses an electromagnetic oven, relates to the technical field of kitchen cooking, and is designed for solving the problems that the service life of electric elements is influenced as the moisture on the surface of a cooking table is easily sucked, and the heat dissipation effect is poor in a conventional electromagnetic oven. The electromagnetic oven comprises a base and an upper cover assembly which form a furnace chamber, wherein a fan is arranged in the furnace chamber; a fan cover is arranged at the periphery of the fan; an air baffle rib is arranged on the base; a cold air cavity and a heating cavity are formed in the two sides of the fan cover and the air baffle rib respectively; a side air inlet through which cooling air enters the cold air cavity is formed in the side wall of the cold air cavity, and a side air outlet through which the cooling air is discharged from the heating cavity is formed in the side wall of the heating cavity. According to the electromagnetic oven, the cooling air enters the side wall of the cold air cavity, so that the moisture on the surface of the cooking table is hardly sucked, the damage on the electric elements in the electromagnetic oven is avoided, and the service life of the electric elements is prolonged.

The invention discloses a foam pump with a breathing sheet. The foam pump with the breathing sheet consists of a nozzle pressing head, a coil cover and a pump body, wherein the pump body comprises a pump body shell, a liquid inlet one-way valve, a large piston, a main valve rod, a valve needle, a rod bottom piston, a spring and a fixed clamping ring. The foam pump uniquely designs a breathing sheet structure, the breathing sheet, the main valve rod and the large piston are matched, so that air inlet is smoother, the pressure of an air inlet cavity is larger, larger internal pressure can be generated, gas liquid is mixed uniformly, and foam is rich.