32results about How to "Adjust the displacement" patented technology

The invention relates to a refrigerated dryer with an electronic bypass type energy adjusting function. The refrigerated dryer comprises a compressor, a condenser, a first filter, a second filter, a thermal expansion valve and an evaporator. The compressor is connected with one end of the condenser. The other end of the condenser is connected with one end of the thermal expansion valve through the second filter. The other end of the thermal expansion valve is connected with one end of the evaporator. The refrigerated dryer further comprises an electronic expansion valve and a refrigerant evaporator outlet temperature probe. The refrigerant evaporator outlet temperature probe is arranged at the position of the outlet of the evaporator. The third end of the thermal expansion valve and one end of the electronic expansion valve are connected to a gas suction pipe of the compressor. The other end of the electronic expansion valve is connected with the one-fourth to one-fifth portion of the upper half portion of the condenser through the first filter. The opening degree of the electronic expansion valve is controlled by an electronic expansion valve controller. The aims of adjusting the gas exhaust amount of the compressor and raising the evaporating pressure and the evaporating temperature are achieved, and normal running of a unit is ensured.

The invention discloses a novel building indoor floor drain. The novel building indoor floor drain comprises a floor drain body. The middle part of the bottom end surface of an inner cavity of the floor drain body is in sleeve joint with an arc rack. the inner cavity of the floor drain body is in sleeve joint with an elevating base which is in threaded connection with a filter sleeve. The top endof the filter sleeve is in threaded connection with a floor drain cover. Hinged racks are rotatably equipped with hollow pipes through pin rolls. The hollow pipes are in sleeve joint with T-shaped telescopic pipes. One ends, close to circle centers, of the T-shaped telescopic pipes are movably hinged to a center plate. The bottom end surface of the center plate is fixedly connected with a connection groove. An elevating hole penetrates through an elevating rod and is in sleeve joint with the elevating rod. The bottom end of the elevating rod is fixedly connected with an oval plastic air bag. The top end of the elevating rod is right opposite to the connection groove in an up-down manner. The novel building indoor floor drain can prevent odors in a sewer line from flowing back and also prevent bugs from crawling indoors from the sewer line. The floor drain is kept unobstructed so that blockages in the floor drain are cleaned conveniently. The water drainage mount is adjusted. The novelbuilding indoor floor drain is simple and practical.

The present invention discloses a displacement-adjustable internal combustion engine. A rotatable upper camshaft is added on the original internal combustion engine; a sliding key can be controlled by an operating lever to slide to the left and the right in a runner, so that the upper camshaft can be rotated at different angles in the sleeve of a driven gear; and a steadier and a valve tappet are utilized to control the closing time of an intake valve assembly, so that the closing time of an intake valve can be controlled and therefore displacement can be adjusted. A piston shaft is flexibly connected with a crankshaft, the compression ratio of a combustion chamber can be adjusted by adjusting spring pressure or liquid pressure, so that the fuel-air mixture ratio can reach the optimal state, and thereby, not only can fuel be saved, but also environment pollution can be reduced.

The invention discloses an unpowered rural sewage treatment device which structurally comprises a sewage treatment device, a device body, a water outlet pipe, supporting feet, a control cabinet, a water inlet pipe, a control panel and a top cover. The bottom of the top cover is fixedly connected with the top of the device body; the back of the control cabinet is vertically connected with the frontside of the device body, and the side face of the control panel is inlaid in the front side of the control cabinet; the left end of the water inlet pipe is connected with the interior of the device body in a communicating manner; the bottom of the device body is vertically connected with the top of the water outlet pipe; the sewage treatment device is arranged in the device body, and the supporting feet are connected into a triangular structure successively to array at the device body; the sewage treatment device is composed of a water inlet device, a filter device, a linkage device, a circulating extrusion device, an adjustment device, a manual device and an oxygen supply device; the unpowered rural sewage treatment device can rapidly perform solid-liquid separation on sewage and also can perform compression treatment on a separated solid, so that compressed excrement can be fertilized and used, and water also can have the quality improved by increasing the oxygen content.

The invention discloses a cooking machine capable of adjusting the gas vent amount, and belongs to the field of kitchen cooking utensils. The problem that the gas vent amount of a vent valve on a potlid of an existing cooking utensil cannot be adjusted is solved. The cooking machine comprises a pot body and a pot lid, the pot lid covers the pot body to form a cooking cavity and is provided with avent valve used for venting steam in the cooking cavity, the vent valve comprises a static valve block and a mobile valve block which are stacked, the static valve block is fixed to the pot lid, themobile valve block is rotatably connected to the static valve block, the static valve block is provided with a venting part, the venting part comprises at least one first gas vent, and the mobile valve block rotates relative to the static valve block to adjust the gas vent amount of the venting part.

The invention discloses a coal mill. The coal mill comprises a coal mill top cover, an upper grinding disc, a lower pressing disc and a coal mill base disc, wherein the upper grinding disc is movablyconnected to the coal mill top cover, the lower pressure disc is arranged on the coal mill base disc, and the upper grinding disc comprises an upper pressing disc, hydraulic telescopic rods connectedwith the upper pressing disc, a hydraulic telescopic machine and a controller; the upper pressing disc is in an inverted circular truncated cone shape; the number of the hydraulic telescopic rods is multiple, and the hydraulic telescopic rods are arranged at the top of the upper pressing disc at equal intervals in an annular mode and are connected with the hydraulic telescopic machine; and in theworking process of the coal mill, the squeezing effect of the grinding disc is good, the feeding is carried out, the drying is rapid, an air suction device can adjust the exhaust volume of the air, the condition that the coal powder is discharged is controlled, the production requirement is met under the condition that the environment-friendly requirement is met, a rotary scraping plate arranged on a grinding wheel can effectively remove the coal blocks adhered to the grinding wheel, and the block grinding wheel extrusion grinding efficiency is accelerated.

The invention discloses a dual-part sliding door which does not occupy large space. The dual-part sliding door comprises an L-shaped upper door frame, two door panels and a steel wire rope, H-shaped sliding columns are arranged at the two corners of the upper end of the each door panel respectively, an L-shaped through groove is formed in the L-shaped upper door frame, the H-shaped sliding columnsare slidingly arranged in the L-shaped through groove, and a linkage rod is disposed between the two H-shaped sliding columns of the outermost sides of the two door panels and rotatably connected with the two H-shaped sliding columns on the outermost sides; one side of the L-shaped upper door frame is provided with a vertical sliding wall, and the vertical sliding wall is provided with a U-shapedsliding block, the U-shaped sliding block is slidingly arranged on the vertical sliding wall, and a connecting rod is arranged between the U-shaped sliding block and the nearest H-shaped sliding column. The dual-part sliding door fits a wall when being closed without occupying a large space and is suitable for channels for quick pass in occasions such as hospitals and the like.

The invention provides a self-induction type bubble enrockment submerged breakwater. The self-induction type bubble enrockment submerged breakwater comprises a breakwater base and is characterized in that the breakwater base is provided with an air compressor and an energy accumulator for supplying power, the air compressor is connected with an air inlet pipe and air exhaust pipes, the air exhaust pipes are vertically arranged on the breakwater base, the air inlet pipe is a flexible pipe, and the upper end of the air inlet pipe is connected with a detection buoy; the detection buoy comprises a buoy body, a wave height measuring device and a solar cell panel; and the signal output end of a wave meter is connected with a controller through a first cable, the controller is connected with the signal receiving end of the air compressor through a second cable, and the solar cell panel is connected with the energy accumulator through a third cable. According to the actual incident wave parameters, the size of wave energy can be analyzed, the wave absorbing control variable can be adjusted, then, the exhaust volume of the air exhaust pipes is adjusted, and an economical and effective wave absorbing effect is achieved.

The invention discloses an extruding coal mill. The extruding coal mill comprises a coal mill top cover, an upper grinding disc, a lower pressing disc and a coal mill chassis, and the upper grinding disc is movably connected to the coal mill top cover, the lower pressing disc is arranged on the coal mill chassis, and the upper grinding disc comprises an upper pressing disc, hydraulic telescopic rods, a hydraulic telescopic machine and a controller, wherein the hydraulic telescopic rods, the hydraulic telescopic machine and the controller are connected with the upper pressing disc; and the upper pressing disc is in an inverted circular truncated cone shape, and multiple hydraulic telescopic rods are annularly arranged at the top of the upper pressing disc at equal intervals and are connected with the hydraulic telescopic machine. In the working process of the coal mill, the extruding effect of the grinding disc is good, feeding is conducted in place, and the drying is rapid; the air exhaust amount can be adjusted through an air suction device so as to control the discharge of pulverized coal, and the production requirements are met under the condition that the environment-friendly requirement is met; and a rotary scraping plate arranged on a grinding wheel can effectively remove coal blocks adhering to the grinding wheel, and the grinding efficiency of grinding wheel extrusion is improved.

The invention discloses a variable-frequency wind supply device for a rail transit vehicle. The variable-frequency wind supply device comprises a hoisting frame, an electrical control box, an integrated air aftertreatment device, an outlet pressure maintenance valve and a screw compressor, wherein the screw compressor comprises an air filter, a screw main machine, an oil-gas separation tank, an oil filter, an air cooling system and a variable-frequency motor, the wind supply device is electrically connected with the vehicle through an electric connector, the variable-frequency motor drives thescrew main machine and the air cooling system, air is sucked through the air filter, the air is compressed by the screw main machine and then is subjected to oil-gas separation through the oil-gas separation tank, the compressed air is cooled by the air cooling system and then is subjected to filtering and drying treatment through the integrated air aftertreatment device, and finally clean and dry compressed air is output through an outlet pressure maintaining valve. According to the variable-frequency wind supply device, the wind demand of the rail transit 3 to 6 marshalling vehicles can beuniversally adapted, meanwhile, the phenomenon of lubricating oil emulsification is effectively prevented, and the application reliability of the whole life cycle of the wind supply device is guaranteed.

The invention discloses a dual-part sliding door which does not occupy large space. The dual-part sliding door comprises an L-shaped upper door frame, two door panels and a steel wire rope, H-shaped sliding columns are arranged at the two corners of the upper end of the each door panel respectively, an L-shaped through groove is formed in the L-shaped upper door frame, the H-shaped sliding columnsare slidingly arranged in the L-shaped through groove, and a linkage rod is disposed between the two H-shaped sliding columns of the outermost sides of the two door panels and rotatably connected with the two H-shaped sliding columns on the outermost sides; one side of the L-shaped upper door frame is provided with a vertical sliding wall, and the vertical sliding wall is provided with a U-shapedsliding block, the U-shaped sliding block is slidingly arranged on the vertical sliding wall, and a connecting rod is arranged between the U-shaped sliding block and the nearest H-shaped sliding column. The dual-part sliding door fits a wall when being closed without occupying a large space and is suitable for channels for quick pass in occasions such as hospitals and the like.

The invention discloses a simulation experiment device for reaming gas reverse circulation through horizontally directional drilling, and an experiment method, and relates to the technical field of non-excavation engineering. According to the simulation experiment device for reaming gas reverse circulation through horizontally directional drilling, and the experiment method, an air storage tank isarranged on the right side of an air compressor, the right side of a pressure reducing valve is connected with an air inlet pipeline, and a motor is arranged below a vortex shedding flowmeter. According to the simulation experiment device for reaming gas reverse circulation through horizontally directional drilling, and the experiment method, the rock debris discharging process during gas reversecirculation reaming through horizontally directional drilling is simulated, by using the simulation experiment device for reaming gas reverse circulation through horizontally directional drilling, and the experiment method, the influences of different working flow pressure, annulus mud pressure and drilling rod rotating speeds on the working property and the cavitation property of a reamer can beresearched, and the influences of different mud properties, rock debris particle diameters, rock debris adding speeds and drilling rod rotating speeds on the debris discharging efficiency of the reamer can be further researched.

The invention discloses a coal mill grinding disc. The grinding disc is divided into an upper grinding disc body and a lower grinding disc body. The upper grinding disc body is movably connected to the top of a coal mill, and the lower grinding disc body is arranged at the bottom of the coal mill. The upper grinding disc body comprises an upper pressing disc, hydraulic telescopic rods connected with the upper pressing disc, hydraulic telescopic machines and a controller, wherein the upper pressing disc is arranged in an inverted circular platform manner, the multiple hydraulic telescopic rodsare arranged, annularly arranged on the top of the upper pressing disc at equal intervals and connected with the hydraulic telescopic machines, and the hydraulic telescopic machines are connected withthe controller. The lower pressing disc is arranged in a circular tabletop manner, and the upper surface of the circular tabletop is arranged from the exterior to a groove gradually concaved in the center area. In the coal mill work process, the grinding disc extrusion effect is good, feeding is conducted in place, and drying is rapid; and through an air suction device, the air exhaust volume canbe adjusted, accordingly, the situation of coal powder discharging is controlled, and the production requirements are met under the condition that the environment protection requirement is met.

The invention discloses a coal mill heating ventilation device. The coal mill heating ventilation device comprises a coal mill top cover, an upper grinding disc, a lower pressing disc and a coal millbase disc, wherein the upper grinding disc is movably connected to the coal mill top cover, the lower pressing disc is arranged on the coal grinding machine disc, the upper grinding disc comprises anupper pressing disc, hydraulic telescopic rods connected with the upper pressing disc, a hydraulic telescopic machine and a controller, wherein the upper pressing disc is in an inverted circular truncated cone shape, and the number of the hydraulic telescopic rods is multiple; in the working process of the coal mill, the extrusion effect of the grinding disc is good, the feeding is carried out, the drying is rapid, air suction amount can be adjusted by an air suction device, the condition that the coal powder is discharged is controlled, the production requirement is met under the condition that the environment-friendly requirement is met, a heating strip and a ventilation device are used for effectively heating and drying the ink powder on the grinding disc, so that the grinding efficiency is accelerated.

The invention discloses a sintering furnace used on a solar battery production line. The sintering furnace comprises a rack and a conveyor belt, wherein a drying room is arranged on the left side of the top end of the rack; a sintering room is arranged on the right side of the drying room; the upper conveyor belt surface of the conveyor belt penetrates through the drying room and the sintering room; first material inlets / outlets corresponding to the conveyor belt are formed in the left and right end side walls of the drying room; second material inlets / outlets corresponding to the conveyor belt are formed in the left and right end side walls of the sintering room; and a plurality of uniformly arranged drying devices are arranged in the drying room, the drying devices are arranged at the bottom ends of the upper conveyor belt surface of the conveyor belt, a plurality of symmetrically distributed exhaust ports are formed in the top end of the drying room, and an exhaust fan is arranged in each exhaust port. The sintering furnace disclosed by the invention reduces the influence of an air flow on a silicon wafer, prevents drifting collision of the silicon wafer as a result of blowing of the air flow, improves the product quality, can adjust the gas displacement flexibly and conveniently, and saves energy.

The invention belongs to the technical field of fitness equipment, and particularly relates to a spin bike capable of adjusting water resistance. The spin bike comprises a frame, a water resistance paddle impeller device and a pedal mechanism, wherein the water resistance paddle impeller device is mounted on the frame; the pedal mechanism drives the water resistance paddle impeller device to rotate; and the water resistance paddle impeller device comprises an outer bucket arranged on the frame and a water paddle arranged in the outer water bucket and is in transmission connection with the pedal mechanism, an inner water bucket is arranged in the outer water bucket, a water outlet communicating with the outer water bucket is formed in the inner water bucket, and an adjusting part for adjusting the displacement of the water outlet is movably arranged at the water outlet. The invention aims to provide the one-way spin bike capable of adjusting the water resistance.

The invention discloses a drain valve which comprises a button seat arranged on the upper end, a barrel body arranged in the middle and a base arranged at the bottom; a lifting pipe is arranged in the barrel body, and one side of the barrel body is also provided with an overflow pipe which is communicated with the base; the drain valve is also provided with a lever-type drain mechanism; the lever-type drain mechanism comprises a semi-drain mechanism and a full-drain mechanism; and the semi-drain mechanism and the full-drain mechanism are arranged inside and outside of the barrel body separately. The drain valve has the advantages of simple and reasonable structure, quite convenient installation and use, and can flexibly and greatly adjust the water drainage and save water resource. Because the product has small size and lower cost, and some structures are improved, the produce fault rate is lower, and the use of a user is easier.

The invention discloses an urban inland inundation early warning device based on big data. The device comprises a pre-embedded box, the upper surface of the pre-embedded box is connected with a drainage pipe, the upper part of the inner wall of the drainage pipe is provided with a plurality of baffle plates through a rotating shaft, and the outer wall of the drainage pipe is provided with a driving motor for driving the rotating shaft to rotate; a bearing plate and a filter screen plate are connected to the interior of the drainage pipe, a driving shaft is rotatably mounted on the surface of the bearing plate, a propeller is connected to the upper end of the driving shaft, and the bottom end of the driving shaft penetrates through the bearing plate and is connected with a scraper; a vertical plate is connected to the edge of the embedded box, and an external water level sensor is arranged on the outer side of the vertical plate; and an internal water level sensor is arranged on the inner wall of the embedded box. The device has the advantages that water level monitoring is conducted through the external water level sensor and the internal water level sensor at the same time, waterlogging caused by drainage blockage can be distinguished, and waterlogging monitoring accuracy is guaranteed; and the anti-blocking function is achieved, waterlogging caused by drainage blocking is effectively avoided, and the using effect is good.

The invention discloses a grinding wheel of a coal mill. The grinding wheel comprises a bowl grinding wheel which is hollow. A grinding roller connector is arranged on one side of the grinding wheel and an air outlet of an exhaust fan is formed in the other side of the grinding wheel. Heating strips which are annularly and uniformly distributed are arranged on the bowl wall on the inner side of the grinding wheel. The heating strips are connected to a heating machine. The heating strips and a sealing cover on the outer side of the heating strips are sealed. An air guide pipe is arranged on thesealing cover, and the air guide pipe is connected to the exhaust fan arranged at the air outlet. In a working process of the coal mill, a grinding plate is good in extruding effect, adequate to feedand quick to dry. An air suction device can adjust the displacement of air, so that the pulverized coal discharging condition is controlled. In a condition of meeting the environmental protection demands, the production needs are met. The heating strips and a ventilating device can heat and dry powdered ink on the milling plate effectively, so that the grinding and pressing efficiency is accelerated.

The invention discloses a steel plate welding device with a dehumidification function. The device structurally comprises a comprehensive welding unit, a device body, a connecting block, a welding gun,a connecting pipe, an arranging and butt-joint supporting frame, a base and supporting legs. The comprehensive welding unit is mounted in the device body, the bottom end of the connecting block penetrates through the top of the device body and is connected into the comprehensive welding unit, the right end of the welding gun is perpendicular to and connected with the left end of the top of the connecting block, the right end of the connecting pipe is connected into the comprehensive welding unit through the connecting block, the bottom of the arranging and butt-joint supporting frame is perpendicular to and connected with the top of the base, and the supporting legs are sequentially connected to form a rectangular structure and arranged at the bottom of the device body. According to the steel plate welding device, the moving track of the welding gun is fixed, thus, the welding stability can be improved, and accordingly, the welding precision degree is increased; and meanwhile, a welding position and positions within certain ranges on the two sides of the welding position can be baked and dehumidified through the device, thus, the welding firm degree can be increased, and meanwhile, the practical value of the device is increased.

The invention provides a self-induction type bubble enrockment submerged breakwater. The self-induction type bubble enrockment submerged breakwater comprises a breakwater base and is characterized in that the breakwater base is provided with an air compressor and an energy accumulator for supplying power, the air compressor is connected with an air inlet pipe and air exhaust pipes, the air exhaust pipes are vertically arranged on the breakwater base, the air inlet pipe is a flexible pipe, and the upper end of the air inlet pipe is connected with a detection buoy; the detection buoy comprises a buoy body, a wave height measuring device and a solar cell panel; and the signal output end of a wave meter is connected with a controller through a first cable, the controller is connected with the signal receiving end of the air compressor through a second cable, and the solar cell panel is connected with the energy accumulator through a third cable. According to the actual incident wave parameters, the size of wave energy can be analyzed, the wave absorbing control variable can be adjusted, then, the exhaust volume of the air exhaust pipes is adjusted, and an economical and effective wave absorbing effect is achieved.

The invention discloses a simulation experiment device for reaming gas reverse circulation through horizontally directional drilling, and an experiment method, and relates to the technical field of non-excavation engineering. According to the simulation experiment device for reaming gas reverse circulation through horizontally directional drilling, and the experiment method, an air storage tank isarranged on the right side of an air compressor, the right side of a pressure reducing valve is connected with an air inlet pipeline, and a motor is arranged below a vortex shedding flowmeter. According to the simulation experiment device for reaming gas reverse circulation through horizontally directional drilling, and the experiment method, the rock debris discharging process during gas reversecirculation reaming through horizontally directional drilling is simulated, by using the simulation experiment device for reaming gas reverse circulation through horizontally directional drilling, and the experiment method, the influences of different working flow pressure, annulus mud pressure and drilling rod rotating speeds on the working property and the cavitation property of a reamer can beresearched, and the influences of different mud properties, rock debris particle diameters, rock debris adding speeds and drilling rod rotating speeds on the debris discharging efficiency of the reamer can be further researched.

The invention relates to the field of sanitary baths, in particular to an adjustable quantitative drain valve of a toilet stool water tank, which mainly comprises a drainer, a controller, a water control button and a converter, wherein the drainer is installed on a drain pipe at the bottom of the water tank, the controller is connected with the drainer through a supporting rod, the water control button is installed on a tank cover or a tank wall, and the converter is installed on the supporting rod and abuts against the water control button and a water control frame; and an overflow opening is arranged on an overflow pipe below the controller. The adjustable quantitative drain valve is characterized in that the controller is arranged at the upper end of the supporting rod, a gas outlet valve or the gas outlet valve and a gas inlet valve are arranged at the upper part of the controller, a gas inlet is arranged at the lower part of the controller, a sealing sheet is arranged in the cavity of the controller, and the sealing sheet is fastened at the upper end of the overflow pipe through a fixing cap. The invention has the advantages that the regulation of the drainage amount can be carried out as required and can be instantly finished; water can be quantitatively drained, the quantitative drainage can not be influenced by the water storage capacity of the water tank; and the adjustable quantitative drain valve does not easily leak when turned off, has simple manufacture and is convenient to popularize.

The invention relates to the technical field related to sanitary ware, and discloses a one-button toilet drain valve, which includes a toilet body on which a water tank cover, a water inlet valve, a drain valve, a single-key switch, a limit pipe and The installation pipe, the upper and lower ends of the middle part of the inner wall of the drain valve are movably equipped with a movable rod, and the bottom end of the movable rod is fixedly installed with a valve core, and the bottom end of the side wall of the movable rod is fixedly installed with a multi-row movement valve located above the valve core. block, the inner wall of the drain valve is eccentrically mounted with multiple rows of driving rods on one side of the movable rod. In the present invention, a few rows of drive rods and multiple rows of drive rods are provided on the drain valve, so that when flushing, the few rows of drive rods can be controlled by pressing the single-key switch to realize the discharge of less medium. The switch controls the multi-row driving rods to discharge all the media in the water tank, and then realizes the single-key control of the drainage, which is convenient for people to use, and finally achieves the purpose of single-key control of drainage.

The invention discloses a centrifugal water diversion device. The centrifugal water diversion device comprises a centrifugal pump of which a pump shell is connected with a discharging tube, a water injection and air exhaust mechanism and a water drawing pipeline of which one end stretches underground; the water injection and air exhaust mechanism comprises a first flange pipe of which one end is connected with the other end of the water drawing pipeline, a second flange pipe of which one end is connected with the first flange pipe while the other end is communicated with a pump shell of the centrifugal pump, a stop valve arranged at a connection part between the first flange pipe and the second flange pipe, and an exhaust pipe of which one end is communicated with the first flange pipe while the other end is communicated with the second flange pipe through an air exhaust mechanism. Based on a structure above, the invention also provides an implementation method of the centrifugal waterdiversion device. The device and the method provided by the invention are rational in design and convenient to use, not only avoid that stopping again and again and manual irrigation are needed in arunning process of the centrifugal pump, but also avoid a problem that an end part of the water drawing pipeline is liable to be broken by pressing, and well solve a difficult problem of the existingcentrifugal pump in practical application. Thus, the centrifugal water diversion device and the implementation method thereof are suitable for being generalized and used.

The invention relates to an integrated hybrid electrical cabinet, in particular to an integrated hybrid electrical cabinet that can adjust the exhaust volume based on the heat generation, including a bottom frame, a box body, a cover plate, an adjustment component, an air inlet expansion component, etc. ; There are two exhaust ports on the bottom frame, a box body is fixedly installed on the top of the bottom frame, a plurality of heat dissipation holes are arranged at the bottom of the box body, a cover plate is connected to the box body through hinges, the adjustment components are arranged on the box body, and the air inlet The expansion component is slidably connected in the bottom frame. Push the lower pressure rod and the combined baffle plate to move downward through the inclined plate, and the combined baffle plate opens the exhaust port on the bottom frame. Gas volume purpose.

The invention relates to a water-saving flushing toilet capable of arbitrarily adjusting flushing amount. A water discharge pipe and a water tank are fixedly arranged together; the upper port of the water discharge pipe is appropriate height higher than the bottom of the water tank; a water tank cover is arranged at the upper opening of the water tank and is provided with a rubber expansion sleeve; a communicating pipe is arranged in an inner hole of the rubber expansion sleeve; the open end of the communicating pipe covers a position over the water discharge pipe; the excircle of the communicating pipe is provided with a rough surface; a distance between the lower port of the communicating pipe and the bottom surface of the water tank is adjusted through friction between the rough surface and the inner hole of the rubber expansion sleeve; and a rising float which easily floats on a water surface is arranged in the water tank and is connected with a handle outside the water tank through a push rod. Water is discharged or water discharge is stopped according to the principle of a communicating vessel; and the toilet has the advantage of water saving.

The invention provides a thawing device which can easily adjust the exhaust amount of steam based on an object to be thawed. The thawing device 10 includes a cabinet 11 having a thawing chamber 12 inside, a steam generation mechanism 20 generating steam supplied to the thawing chamber 12 to thaw the object to be thawed, and an exhaust mechanism 40 for exhausting the steam supplied to the thawing chamber 12 to the outside. The exhaust mechanism 40 is provided with a cylinder part 46 having one end communicated with the thawing chamber 12 and the other end communicated with the outside of the thawing chamber 12, and a spiral plate part 47 which is threadedly connected with the inner surface of the cylinder part 46 via an outer periphery to be arranged in the cylinder part 46 to enable steam to flow spirally.

The invention discloses a welding device for a low-alloy steel plate and a marine steel plate. The welding device structurally comprises a comprehensive welding device, a machine body, a connection block, a welding gun, a connection pipe, a placement butt-joint support frame, a base and support legs, wherein the comprehensive welding device is installed in the machine body; the bottom end of the connection block penetrates through the top of the machine body and is connected into the comprehensive welding device; the right end of the welding gun is vertically connected with the left end of thetop of the connection block; the right end of the connection block is connected into the comprehensive welding device through the connection block; the bottom of the placement butt-joint support frame is vertically connected with the top of the base; and the support legs are sequentially connected to form a rectangular structure and are arranged at the bottom of the machine body. The device fixesthe movement track of the welding gun, and in this way, the stability of welding can be improved, and then the accuracy degree of welding is increased; and meanwhile, the device roasts a welding partand the two sides of the welding part for dehumidification in a certain range, and in this way, the firmness degree of welding can be increased, and the practical value of the device is increased.

The invention discloses a frequency conversion air supply device for rail transit vehicles, which includes a hoisting frame, an electrical control box, an integrated air post-processing device, an outlet pressure maintaining valve, and a screw compressor. The screw compressor includes an air filter, Screw host, oil and gas separation tank, oil filter, air cooling system, frequency conversion motor, the air supply device is electrically connected to the vehicle through an electrical connector, the frequency conversion motor drives the screw host and air cooling system, and is sucked through the air filter Air, the air is compressed by the screw main engine and separated from the oil and gas by the oil and gas separation tank. The compressed air is cooled by the air cooling system and then filtered and dried by the integrated air post-processing device. Finally, the clean and dry compressed air is output through the outlet pressure maintaining valve. The invention can generally adapt to the wind demand of 3 to 6 marshalled vehicles in rail transit, effectively prevents lubricating oil emulsification, and ensures the operational reliability of the air supply device in its entire life cycle.