78results about How to "Avoid depressurization" patented technology

The invention includes an engine oil collector, an engine oil pump, an engine oil filter, a cylinder, a cylinder head, an oil sump and a frame. A main oil passage, an auxiliary oil passage connected with the oil filter, an oblique oil passage and a vertical oil passage are disposed in the cylinder. An oil passage, an oil sump oil passage and a frame oil passage are disposed in the oil sump and the frame mechanism separately. The run of the basic oil passage is: the oil collector to the oil pump to the frame oil passage to the auxiliary oil passage to the oil filter to the main oil passage to the oblique passage to the vertical passage.

The invention discloses a liquid inoculation machine for shiitake. The liquid inoculation machine for the shitake comprises a stand, an upper controller, a location displacement conveying device, a sterilizing device, a punching device, an inoculation device and a bag discharge device, wherein the upper controller is mounted on the stand, the location displacement conveying device is mounted at the lower part of the stand and connected with the upper controller, the sterilizing device is mounted at the upper part of the stand and located above the location displacement conveying device, the punching device is mounted on the stand, located above the location displacement conveying device and connected with the upper controller, the inoculation device is located above the location displacement conveying device and connected with the upper controller, the bag discharge device is located above the location displacement conveying device and connected with the upper controller, and the sterilizing device, the punching device, the inoculation device and the bag discharge device are mounted above the location displacement conveying device in sequence.

The invention discloses a cleaning head device and an on-line cleaning robot of a condenser. The cleaning head device comprises a cleaning nozzle, a mechanical arm connecting device, an elastic reset device, a front electrifying solenoid and a rear electrifying solenoid, wherein the cleaning nozzle is hollow and is tubular, the mechanical arm connecting device comprises a front structural part, a rear structural part and a connecting plate, the cleaning nozzle is sleeved with both the front structural part and the rear structural part, the front structural part and the rear structural part are connected through the connecting plate, the cleaning nozzle is sleeved with both the front electrifying solenoid and the rear electrifying solenoid, the front electrifying solenoid and the rear electrifying solenoid are located between the front structural part and the rear structural part, the rear electrifying solenoid is fixedly connected with the rear structural part, the front electrifying solenoid is fixedly connected with the cleaning nozzle, the elastic reset device is arranged between the front electrifying solenoid and the front structural part, and a sealing gasket is arranged on the front end face of the cleaning nozzle. The cleaning robot is arranged in a water chamber of the condenser and comprises the cleaning head device, a mechanical arm, a connecting pipe and a booster pump. The on-line cleaning robot of the condenser is simple in structure, convenient to install and use, and low in maintenance cost.

The invention belongs to the technical field of spraying machinery, and particularly relates to an external soil spraying machine and a special two-stage energy-saving high-lift underflow pump for the external soil spraying machine. The underflow pump comprises a transmission shaft, a pump body, a bearing chamber and a coupling, wherein the pump body comprises a one-stage pump body, a two-stage pump body and a two-stage feed pump body; a one-stage impeller is fixedly mounted at the right end of the transmission shaft in a sleeving manner; an elbow is communicated between the one-stage pump body and the two-stage feed pump body; a guard plate is arranged between the two-stage feed pump body and the two-stage pump body; a locating sleeve is mounted on the transmission shaft between the two-stage feed pump body and the two-stage pump body in a sleeving manner; a two-stage impeller is mounted on the locating sleeve in a sleeving manner, and mounted between a radial flange at one end of the locating sleeve and the guard plate; a feed channel is formed between the guard plate and the locating sleeve; the one-stage impeller and the two-stage impeller are mounted back to back; the bending direction of a helical blade of the one-stage impeller is counterclockwise; the bending direction of a helical blade of the two-stage impeller is clockwise; a horizontal feed port is formed in the right end face of the one-stage pump body; and a discharge port is formed vertically in a tangential direction of the pump body on the front side of the two-stage pump body. The underflow pump is higher in lift, and is suitable for conveying viscous slurry; the structure of the spraying machine is simplified; the manufacturing cost and engineering use cost of the spraying machine are lowered; breakdown maintenance points of the spraying machine are decreased; and the power loss of equipment is reduced.

The invention relates to an automobile air-conditioning evaporating fan with adjustable air volume, low noise and no interference. The automobile air-conditioning evaporating fan comprises two hollow cylindrical centrifugal fans, two volutes, a resistance speed regulator and a permanent magnet direct current motor, wherein the two centrifugal fans are fixedly connected to two ends of a center rotating shaft of the direct current motor; the sealing volutes for allowing air to enter from the end part are arranged outside excircles and the end faces of the centrifugal fans; and the resistance speed regulator is connected between a direct current power supply and the direct current motor in series. According to the automobile air-conditioning evaporating fan disclosed by the invention, the resistance speed regulator can be used for adjusting the air volume; blades of the centrifugal fans are arrayed in a non-equidistant way, so that noises are reduced; the volutes accommodate the centrifugal fans, so that air leakage and pressure relief are avoided; an electric brush box is lengthened and the service life of an electric brush is prolonged; a flowing channel for generating electromagnetic waves is arranged on a line of an electric brush device and is combined with an electric spark-free commutator, so that the possible electromagnetic interference of the whole motor to vehicle-mounted television and telephone and the like is basically eliminated; and a clearance is reserved between a motor casing and an end cover and the temperature rise of the motor is reduced, so the automobile air-conditioning evaporating fan adapts to the operation at high temperature in summer.

The invention provides an inflation type passage device used for taking out a tumor sample per anum after colorectal surgery. The inflation type passage device comprises a passage wall, an inflation pipe, supporting racks and a membrane. The passage wall is in the same of a cylinder with two open ends and comprises a head portion, a middle portion and a tail portion; the passage wall is divided into an inner layer and an outer layer, wherein a cavity is formed between the two layers of elastic thin walls; the inflation pipe is located on the outer surface of the tail portions of the passage wall and communicates with the cavity; the head portion and the tail portion of the passage wall are provided with solid annular supporting racks; the inside of the middle portion of the passage wall isalso provided with the membrane made of elastic materials; the edge of the membrane is hermetically connected with the inner wall of the passage wall. When not inflated, the device is in the shape ofa long strip, so that the device can be placed into a body of a patient without causing much pain to the patient; the supporting racks enable the passage wall to maintain the cylinder shape after inflation, so that operation space is provided to allow operating forceps to clamp a tumor and place the tumor into the passage wall, so that the difficulty of operation is reduced and the success rate is reduced; tumors are completely located in the passage wall, so that the tumors are prevented from spreading after being taken out; the membrane can effectively prevent decompression of an abdominalcavity to guarantee normal progress of surgery.

The invention relates to the technical field of power transmission and discloses a fan system and an electric instrument. The fan system comprises a fan cover (10) and a movable impeller (20). The fan cover (10) is provided with an air inlet (11) and a ring-shaped groove (12) formed around the air inlet (11). The movable impeller (20) comprises a front cover plate (21). The front cover plate (21) is provided with a center through hole and bent upwards toward the center through hole from outside to inside. The top of the front cover plate (21) extends into the ring-shaped groove (12), and a gap is kept between the top of the front cover plate (21) and the side wall of the ring-shaped groove (12). The fan system is utilized and can prevent backflow from being generated in the fan cover structure, and thus pressure relief is prevented to improve efficiency of the system.

The invention discloses a closed circulation system for sealing and collecting oil fog of a generator. The closed circulation system comprises a rotatable part of a generator thrust bearing or a guide bearing and an oil groove for surrounding the rotatable part, wherein the upper part of the oil groove is provided with a sealing cover, and a sealing structure arranged between the sealing cover and the rotatable part is used for isolating the oil groove and the outside; the sealing cover is respectively provided with an air inlet, an exhaust hole and an oil return hole communicated with the oil groove, the rotatable part of the generator is provided with a fan, and the sealing cover or an oil groove cover is provided with an oil fog collector; the oil fog collector is communicated with the exhaust hole through an oil-taking fog pipe, the outlet of the oil fog collector is communicated with the air inlet, and an oil liquid agglutinated by the oil fog collector is inputted into the oil return hole through an oil return pipe. The closed circulation system provided by the invention has the advantages that the oil fog is limited in a space formed by the oil groove, the oil fog collector and the oil-taking fog pipe, the oil fog is agglutinated by the oil fog collector into a liquid state to reflow in the oil groove, so that the sealing and collection of the oil fog are realized, and an overflowing problem of the oil fog is solved.

An apparatus for providing a pressurized gas inline valve assembly incorporating a check valve to maintain pressure above a selectable psi and a ball valve for selectively shutting off gas flow. The apparatus is preferably positioned approximate the gas source in a beverage dispensing system that uses carbon dioxide for carbonation, preservative and propellant. Preferably, the apparatus is designed to maintain the system pressure above the threshold pressure that when below said threshold pressure the carbon dioxide would revert to its inoperative dry ice solid state as opposed to its operative liquid state.

The invention discloses an expansion and water supplement pressure stabilizing system of a combined heat and power generation centralized heating heat network and a regulation and control method of the expansion and water supplement pressure stabilizing system. The problems that a variable frequency pump is large in operating energy consumption and high in damage rate, manual pressure relief workloads are large, and too much circulating water is lost are solved. An expansion constant pressure pipe (10) is connected to a water supplement constant pressure pipe (7) and communicates with a water bag (12) together through an isolation valve (13); the water bag (12) is arranged in an airtight expansion tank (11); the airtight expansion tank is filled with compressed air (14); the compressed air (14) is arranged between an inner cavity of the airtight expansion tank (11) and the outer side wall of the water bag (12) in a filling manner; a compressed air inlet (15) and an electric control pressure exhaust valve (19) are arranged on a tank body of the airtight expansion tank; a compressed air conveying pipe (16) is connected to the compressed air inlet (15); and an air compressor (16) is connected to the other end of the compressed air conveying pipe. Pressure at a constant pressure point is regulated automatically in real time.

The invention discloses a copper foil roll vacuum storage box facilitating batched taking and placing and belongs to the technical field of copper foil production. The copper foil roll vacuum storage box facilitating batched taking and placing is technically characterized by comprising a box body and a box cover which are matched to form a vacuum placing chamber; a rotary placing disc is arranged in the vacuum placing chamber; a rotary driving mechanism is arranged at the bottom of the rotary placing disc; a plurality of placement grooves are distributed in the rotary placing disc, sealed placement barrels are arranged in the placement grooves, and copper foil roll fixing frames are arranged in the sealed placement barrels; a vacuum taking and placing box is arranged at the top outside the box cover; a taking and placing opening is formed in a box cover at the bottom of the vacuum taking and placing box; a lifting hydraulic cylinder opposite to the taking and placing opening is arranged in the vacuum placing chamber, lifting through holes are formed in the bottoms of the placement groove, and a push plate is arranged at the free end of a piston rod of the lifting hydraulic cylinder; and a rotary buckle structure is arranged between the push plate and the sealed placement barrels, and lifting guide structures are arranged between the sealed containing barrels and the placement grooves. The invention aims to provide the copper foil roll vacuum storage box facilitating batched taking and placing.

The invention discloses multifunctional installation equipment for a steel pipe column. The equipment comprises a chassis component, a loading component, a braking component, a braking fixed shaft, a front luffing link, a rear luffing link, a luffing oil cylinder, a suspension arm component, a main winching assembly, an auxiliary winching assembly, a front support leg component, a rear support leg component, a front support wall lead screw and a rear support wall lead screw. According to the equipment disclosed by the invention, the angle change of the installed steel pipe column is displayed by virtue of a high-accuracy tilt angle sensor, a worker has no need to go down into a hole to install and locate by virtue of the equipment, and therefore, two phases of installing a steel casing and detaching the steel casing can be omitted. The equipment adjusts the verticality of the steel pipe column through adjusting the own angle after the whole steel pipe column is installed, without the need of the basis of a novel PBA construction method. The multifunctional installation equipment for the steel pipe column, which is capable of replacing manual operation and high in accuracy, is capable of reducing the labour intensity of workers and reducing the safety risk of construction.

The invention belongs to the technical field of plastic processing equipment, and discloses a special injection nozzle for injection molding of aircraft seat plastic products, which comprises an injection molding pipe barrel, an injection molding screw rod is movably sleeved in the injection molding pipe barrel, and one end of the injection molding screw rod is fixedly connected with a screw rod tip. Through the arrangement of the mounting sleeve, the fan blades and the auger, in the injection molding process, the auger rotates along with rotation of the fan blades, the inner wall of an injection hole can be repeatedly scraped and cleaned, a plastic solution can be guided in a one-way mode, the backflow resistance of the plastic solution is increased, backflow of the plastic solution is avoided, and meanwhile, the service life of the plastic solution is prolonged. In the pressure maintaining process, the auger is gradually inserted into the injection nozzle hole formed in one end of the injection nozzle body, scraping and cleaning of the inner wall of the injection nozzle hole are achieved, plastic solution residues are avoided, meanwhile, after injection molding is completed, automatic reset can be achieved under the springback of the reset spring, secondary scraping is conducted on the injection hole, and plastic solution residues are further avoided.

The invention discloses an arc discharge processing purging area regulating system. The arc discharge processing purging area regulating system includes a purging area controllable electrode device, amachine tool holder purging connecting opening, a spindle base, a control unit, a connecting opening of a machine tool numerical control system and the control unit and a working fluid supply unit; the control unit reads the machining track by communicating with the machine tool numerical control system, the electromagnet control instruction is automatically generated according to the machining track, and the control signal of the starting and stopping state is provided for each electromagnet; and the position of the purging area keeps in line with the direction of machining feeding. According to the arc discharge processing purging area regulating system, by controlling the purging area, the decompression and outflow of a large number of working fluids in the non-discharge processing area after the electrode loss in arc processing can be prevented, and the fact that the strong internal punching fluid is always maintained in the discharge processing gap is ensured; and the frequency of processing short circuit and stable arc phenomena due to the low purging fluid flow rate and low pressure is reduced, and the machining efficiency and the workpiece surface quality are improved.

The invention discloses a tunnel water-rich and dry water alternate gushing test device and method based on degradation characteristics. The tunnel water-rich and dry water alternate gushing test device comprises a test bed frame, a plurality of bearing reinforcing plates are fixedly connected to the lower surface of the test bed frame, the test bed frame is filled with a simulated surrounding rock structure, and water storage structure, a pressure box and an osmometer are pre-buried in the simulated surrounding rock structure. The water storage structure is arranged, high-pressure nitrogen isused for providing pressure, so that water in the water storage tank is driven, and stable water pressure is provided for the water storage structure of the test system; and meanwhile, gas has rapidexpansibility under the compression action, when the tunnel water bursts, the gas can rapidly expand, so that continuous water pressure is provided, instantaneous pressure relief of water pressure caused by sudden large-flow water outburst of common water pumps and other devices is effectively avoided, implementation recording of mechanical parameters such as tunnel rich water and dry water alternate water gushing action is achieved, and it can be guaranteed that geological tests and engineering design are accurate.

The invention relates to a blast furnace gas adsorption desulfurization method and device. The device comprises a gravity dust collector, a dry bag-type dust collector, a TRT excess pressure power generation device, a pressure regulating valve bank and an adsorption fine desulfurization tower, wherein a gas uniform distributor, a heat exchanger, a conveying fan, valve banks and connecting pipelines are arranged in the adsorption fine desulfurization tower. The problems that when blast furnace gas is purified through a catalytic hydrolysis or catalytic hydrogenolysis organic sulfur process route at present, a catalyst is prone to losing efficacy, the input cost is high, and the sulfide removal effect is unstable are solved.

The invention relates to the technical field of construction equipment, and in particular to mechanical equipment for preparing regenerated sand and stone materials by utilizing construction waste particles. The mechanical equipment comprises a storage structure, a storage chamber, a dust removal structure, a limiting structure, a discharging structure, a filtering structure and a driving structure; the driving structure is connected to the discharging structure on the storage structure, so that it is convenient for weight sensing through the discharging structure; when a cart is placed on thedischarging structure, the driving structure is used for driving the discharging structure to drive the cart to rotate for discharging, so that discharging is more convenient and faster, materials inthe cart can be completely discharged conveniently, and the discharging quality is greatly improved; the filtering structure is arranged, so that sewage can be conveniently filtered and recycled, itis convenient for pressure relieving on concrete blocks, broken stone blocks, and tile fragments; the dust removal structure used for removing dust of the concrete blocks, the broken stone blocks andthe tile fragments is connected to the driving structure, and the dust removal structure can be conveniently driven by the driving structure to conduct watering and dust removal on the concrete blocks, the broken stone blocks and the tile fragments in a multi-angle mode.

The invention relates to an electromagnetic differential safety valve. A valve flap is provided with a valve core in the extending manner along the closing direction, the valve core runs through a valve seat in the sliding and sealing manners, a high-pressure connector is arranged in one side of the valve flap in the opening direction, and a low-pressure connector is arranged in one side of the valve flap in the closing direction; a circulation port is arranged in the valve seat corresponding to the low-pressure connector, and the valve core is provided with a through path which communicates the circulation port with the valve flap; the valve flap is provided with a valve rod in the extending manner along the opening direction, a valve core return spring is mounted in the valve rod, and the valve rod is inserted into the valve body in the sliding, sealing and matching manners; a closed chamber which is larger than the valve core opening travel is arranged between the tail end of the valve rod and the valve body, and the safety valve is provided with a communicating channel which communicates the closed chamber with the low-pressure connector; and an electromagnet opening device used for opening the valve core by pushing is arranged at one end of the valve core, and the end of the valve core penetrates out of the valve seat. The electromagnetic differential safety valve has the characteristics of low requirement on the spring, low opening resistance, and reliability in opening and closing, and is integrated with the function of an oil drain valve.

The invention relates to a river and lake sample collector which comprises a carrying platform, a power driving device, a sampling device, a control device and a power supply device, the power driving device is arranged on the side face of the carrying platform, and the sampling device, the control device and the power supply device are fixedly arranged on the carrying platform. The lower end of the sampling device penetrates through the bottom of the carrying platform and can extend downwards, an anti-backflow device is arranged at the lower end of the sampling device, and the lower end of the sampling device can be blocked into a closed sample cavity by the anti-backflow device; and the power supply device is in power supply connection with the power driving device, the sampling device and the control device, and the control device is in communication connection with the power driving device and the sampling device and used for controlling the power driving device and the sampling device to operate. The collector can automatically complete sampling, can collect bottom mud samples and water quality samples at different depths, and can keep the state of the collected bottom mud not disturbed by water flow.

The invention discloses an external-flat-type high-pressure rotary jet grouting device for complex formations in underground coal mines and a method. The external-flat-type high-pressure rotary jet grouting device includes a water-passing outer pipe, a middle joint, a lower outer pipe, a drill bit joint and an external-flat-type drill bit which are coaxially connected in order; a special-shaped piston capable of moving axially is arranged in the water-passing outer pipe, and an expansion cavity with a nozzle is formed between the end of the special-shaped piston and the end of the middle joint; a limiting spring is arranged between the end of the special-shaped piston and the middle joint; an axial channel, a first flow channel and a second flow channel between the water-passing outer pipeand the special-shaped piston are in sealed communication; a quick-setting box is arranged in the lower outer pipe, an elbow pipe communicates between the second flow channel and the quick-setting box, and a hole is forming in the side wall of the elbow pipe to communicate with a first cavity; and a first unidirectional jet nozzle and a second unidirectional jet nozzle arranged in the first cavity and a second cavity separately are further included. By adopting the device and the process method, the function of rotary jet grouting to improve the complex and broken formations in the underground coal mines can be fully exerted, the wall can be effectively protected against collapse, the formations can be strengthened, and the occurrence of accidents in the holes can be reduced or avoided.

The invention provides a cutting device with a limiting structure for carton processing. The cutting device with the limiting structure for carton processing comprises a workbench and two limiting mechanisms; each limiting mechanism comprises a case, a mounting base and a plurality of paperboard fixing devices; each paperboard fixing device comprises a pressing base and a telescopic pressing pipe; a convex telescopic hole is formed in the center of each pressing base; a ring limiting base is fixedly installed on the inner side wall of each convex telescopic hole; and a plurality of elastic telescopic rods are fixedly installed at the bottoms of the ring limiting bases. The cutting device with the limiting structure for carton processing is reasonable in design, the paperboard fixing devices of the limiting mechanisms can press and suck paperboards at the same time, therefore, it can be guaranteed that the paperboards are fixed tightly, meanwhile, the paperboards are prevented from being deformed and damaged, and the carton processing quality is guaranteed.

The invention discloses an air-filled channel apparatus for removing tumor specimens from anus after colorectal surgery. The air-filled channel apparatus comprises a plurality of channel tubes, air tubes, at least two support frames and at least one diaphragm, outer sides of the adjacent channel tubes in sequence are attached and enclosed, and each channel tube is of a cylinder with two ends enclosed and comprises a head, a middle part and a tail part; the wall surface of each channel tube is of an elastic thin wall, and the air tube is located at the tail part of the channel tube and is communicated with the cavity of the channel tube; a ventilation tube is arranged between two neighboring channel tubes and is connected with the neighboring cavities, the diaphragms are arranged in the cavities of the channel tubes, the diaphragms are made of elastic materials, and edges of the diaphragms are tightly connected with the wall surfaces of the channel tubes. By the arrangement, the rumor removed from the anus is assured not to touch the inner wall of the abdominal cavity and tissue in the same, shedding of tumor cells and occurrence of infection can be avoided, wall surface of the bowel can be supported when the air-filled channel apparatus is put into the bowel, and difficulty in operation is greatly lowered.

The invention discloses a shower lifting pipe with a hydraulic self-locking function. The pipe structurally comprises a water feeding through pipe, a water inlet, a control device, a top shower adjusting device, a locking fixing ring, a shower outlet, a wall base decoration cup, a rubber sleeve, a wall base, a fixing rod, a top shower pipe, a locking nut, a sealing ring, a silicon rubber case, a connection sleeve, a fixing outer cover, a through pipe, a check valve, a connector, a small sealing ring, a clamping spring and a straight pipe. The water feeding through pipe is connected with the water inlet downwards, the control device is arranged in the water feeding through pipe, the exterior of the water feeding through pipe is fixedly connected with the top shower adjusting device through the locking fixing ring, and the water feeding through pipe is connected with he shower outlet. Pressure relief can be completely eradiated, it is ensured that the effect will not be lost, the safety of the lifting pipe is greatly improved, the service life of the lifting pipe is greatly prolonged, locking force is stable and long in lasting time, a top shower pipe is prevented from being deformed under external force, the product is concise in appearance, the economic benefit and sustainable utilization rate of the product are improved, and the product is safer and more efficient.

The invention discloses a seed cotton uniform distributing and sorting system suitable for photoelectric sorting. The system comprises a rack; a three-pipe cotton distributor is arranged on the rack; an air-lock valve is arranged below the three-pipe cotton distributor; a three-roller cotton distributing box is arranged below the air-lock valve; seed cotton thrown out by the three-roller cotton distributing box enters a cotton slipping ramp; a vertical cotton slipping channel is arranged below the cotton slipping ramp; and a photoelectric recognition and sorting box is arranged in the vertical cotton slipping channel. Foreign fibers and other impurities are hit and removed through a high-frequency electromagnetic valve, the seed cotton falls into a brush roller below the equipment, and the sorted seed cotton is discharged and enters a subsequent cotton ginning workshop. According to the invention, cotton balls conveyed along with a pipeline can be fully scattered, fine impurities such as dust, broken leaves and scrap iron wrapped in the cotton balls are primarily cleaned, and the seed cotton and the uncleaned foreign fiber impurities in the vertical cotton channel are conveyed at a constant speed through high-speed rotating airflow of the brush roller; and high-speed recognition and high-frequency sorting are carried out in the recognition and sorting box, so that other foreign fibers are removed, and the sorting precision is improved.

The invention relates to the field of powder forming machines, in particular to an automatic precision servo powder forming machine. The machine comprises a powder forming machine body, a powder clearing structure, a material pushing structure, a storage structure, an anti-blocking structure and a pressure releasing structure, wherein powder materials on a forming die and a finished product are cleared through the powder clearing structure, so that dust clearing of the powder materials is more convenient, and the production processing environment is greatly improved; the top end of the powderforming machine body is provided with the storage structure which is rotationally connected, so that the powder materials are convenient to store, the materials are more convenient to discharge out ofthe storage structure, meanwhile, the powder materials are more convenient to add, and material adding does not influence normal production; meanwhile, dust raising is avoided, and the storage effectof the materials is better; and one end of the anti-blocking structure is connected with the material pushing structure, and the other end of the anti-blocking structure is connected with the storagestructure, so that when the material pushing structure works, shaking of the materials in the storage structure is convenient to drive, hardening of the materials is avoided, and the materials can bebetter discharged.

The invention discloses a non-return valve assembly and a pumping-filling pipeline system provided with the non-return valve assembly. According to the non-return valve assembly and the pumping-filling pipeline system, impact of filling slurry on an S-valve-type piston-type filling industrial pump can be avoided. The non-return valve assembly comprises a valve body and a first electromagnetic reversing valve set. The valve body comprises a shell, a valve element and valve body oil cylinders. A feeding inlet in the shell is matched with an outlet of the S-valve-type piston-type filling industrial pump in the pumping-filling pipeline system. When the valve body oil cylinders drive the valve element to move to the limiting position in the shell, the shell is closed, and when the valve body oil cylinders drive the valve element to leave the limiting position, the shell communicates; the first electromagnetic reversing valve set is used for controlling the valve body oil cylinders; and an Spipe in the S-valve-type piston-type filling industrial pump is driven by a swinging oil cylinder to swing, the swinging oil cylinder is controlled by a second electromagnetic reversing valve set, and the first electromagnetic reversing valve set and the second electromagnetic reversing valve set are connected in parallel and makes action synchronously.

The invention discloses an electric vehicle using wind resistance brake to generate electricity. The electric vehicle recycles the inertial kinetic energy of the vehicle during braking and deceleration, and air is sucked in and compressed through an impeller air inlet by motor cover blades on an impeller-type motor cover when the vehicle is braking. At the same time, the air is introduced into a barrel inner-enclosed impeller disc throughinner air outlet holes and an impeller air outlet which are formed in the impeller motor cover and an air duct on the impeller motor cover to drive a variableresistance wind generator to generate electricity, and then a vehicle power supply is charged. The electric vehicle using wind resistance brake to generate electricity can simultaneously serve the dual effects of braking deceleration, energy recycling, endurance increase, and forced cooling for a driving motor.

The invention provides a portable high pressure microorganism transferring and culturing device. The portable high pressure microorganism transferring and culturing device comprises a pressurization interface unit, a high pressure airtight unit and a high pressure culture unit, wherein the pressurization interface unit is connected with a high pressure source and controlled to open or close by virtue of a handle-free type needle valve; the high pressure airtight unit is connected with the pressurization interface unit and the high pressure culture unit and provides a long-term high pressure airtight environment for a culture system; the high pressure culture unit provides a non-pollution high pressure culture space for microorganisms. The portable high pressure microorganism transferring and culturing device provided by the invention has the advantages that all the components are vertically arranged, no protruding structure is formed, and the handle-free high pressure needle valve is adopted, so that pressure relief caused by looseness of the valve and the interface owing to jolt during long-distance transportation is avoided; all the components can be disassembled, cleaned and disinfected, so that the non-pollution culture environment is guaranteed; a main structure is simple, weight is light, and carrying and long-distance transportation are convenient; manufacturing cost is low, and the portable high pressure microorganism transferring and culturing device can be conveniently connected with multiple pressurization equipment and can be widely applied to culture of multiple barophilic microorganisms including halophilic microorganisms, thermophilic microorganisms and psychrophilic microorganisms.

The invention relates to the technical field of agricultural apparatus, in particular to a triaxial transmission mechanism of a driving axle, the driving axle and a rice harvester. The triaxial transmission mechanism of the driving axle comprises a box body and a tripod, normally-engaged gears, drive engaged racks, driven engaged racks, triaxial gears, reset elements, pistons and friction plates which are mounted in the box body; compared with an existing driving axle of a rice machine, a single-side steering brake device is mounted in a gearbox, so that the dirigibility of the driving axle is better, and meanwhile the driving axle is more stable in steering, easier to assemble and higher in practicability; furthermore, due to the fact that the single-side steering brake device is arranged in the gearbox, the driving axle is less influenced by external environment, and can be adapted to bad external environment and guarantee normal and stable running of the machine.