95results about How to "Enter valid" patented technology

The invention comprises (based on unit weight percent): carbon black 0.1-50, disperser 0.01-15; binder 0.01-15; aquosity dispersion medium 50-99.

The invention discloses a sweep and suction nozzle of sweep road car. By using the suction nozzle of sweep road car the clearing quality is good when the road surface is cleared. The clearing rate is improved and the energy consumption can not be added. The using cost need not be added, which comprises suction cylinder 4, seat of suction nozzle 2, rolling wheel 5, rack for rolling wheel 6, rubber baffle 1 and wall board 7 so on. A silicon baffle 3 is set vertically to the seat of suction nozzle 2 in inner cavity of suction nozzle, at the back of rubber baffle 1 and at the front of the lower mouth of suction cylinder 4. Notches with 60mm or so upwards are set on the lower end of baffle in every 30mm. when the sweep road car of sweep and suction works, the lower end of rubber baffle 1 bends so that the section area of air input is decreased and the air speed is increased. After the air enters into the suction nozzle, it flows near the ground for a long distance to pass through the baffle 3, it turns a corner to enter into the suction cylinder 4. The air through the suction nozzle can take garbage with bigger weight, bigger cubage and more quantity into the suction cylinder 4. Finally, it is sent into dustbins.

The invention relates to a special animal nutrient for milk cows and a preparation method thereof. The special animal nutrient for milk cows comprises the following components in percentage by weight: 40-60% of fulvic acid, 0.2-0.5% of taraxacum total flavone and 39.5-59.5% of fenugreek pulp fermented culture. The preparation method comprises the following steps: extracting fulvic acid; preparingfenugreek pulp fermented culture; and evenly mixing 40-60% of fulvic acid, 0.2-0.5% of taraxacum total flavone and 39.5-59.5% of fenugreek pulp fermented culture. The special animal nutrient for milkcows has obvious effects of improving the gastrointestinal function, enhancing the immunity of the organism, lowering the morbidity of mastitis and increasing the milk yield, has the advantages of high safety and convenience as well as stable performance, and is easy to store.

The invention provides a fulvic acid-containing large-medium-trace element water-soluble fertilizer and a preparation method thereof, wherein the fulvic acid-containing large-medium-trace element water-soluble fertilizer comprises, by mass, 50-90% of fulvic acid, and 10-50% of water-soluble elements, wherein the water-soluble elements comprise large water-soluble elements of potassium dihydrogen phosphate and urea, medium water-soluble water-soluble elements of ammonium calcium nitrate and magnesium sulfate, trace water-soluble elements of zinc sulfate, manganese sulfate, ferrous sulfate, copper sulfate and ammonium tetramolybdate, alginic acid and a chelating agent. Compared with the preparation method in the prior art, the preparation method of the present invention has the following characteristics that fulvic acid is produced by using local straw, rape, corn stalk herb waste as raw materials, and a variety of large-medium-trace elements capable of improving the absorption rate of crops are added, such that the fulvic acid-containing large-medium-trace element water-soluble fertilizer is prepared, the environment is improved, the cost of the fulvic acid water-soluble fertilizeris reduced, the benefits of enterprises are increased, and the competitiveness of enterprises is enhanced.

The invention provides a cardiocerebral resuscitation rescue device, relating to the technical field of medical instruments. The cardiocerebral resuscitation rescue device comprises an air bag, a sputum suction tube, an oxygen tube and an anaesthesia tube. The oxygen tube and the anaesthesia tube are arranged on the inner wall of the sputum suction tube. One end of the sputum suction tube is equipped with a sputum suction end head and the other end thereof is equipped with a connection joint. Additionally, a sputum suction hole is arranged in the sputum suction end head. The oxygen tube comprises an air inlet end and an air outlet end. The anaesthesia tube comprises a liquid inlet end and a liquid outlet end. The air outlet end and the liquid outlet end are both located, close to the sputum suction end head, of the sputum suction tube. Additionally, end openings of the air outlet end and the liquid outlet end are both aligned with the outer wall of the sputum suction tube. The air bagcomprises an air valve, a bag body wrapping the outer wall of the sputum suction tube and an air inflation tube arranged on the inner wall of the sputum suction tube. The air valve, the air inflationtube and the bag body orderly communicate with each other. The cardiocerebral resuscitation rescue device has the feature of performing anaesthesia, sputum suction and oxygen supply at the same time.

The invention relates to an integrated hydrogen supply system of a fuel cell; the system comprises an integrated shell, the integrated shell comprises a gas-water separator shell on the lower portion, an ejector shell on the upper portion and a buffer cavity shell, and a hydrogen circulating pump is installed on the ejector shell; a hydrogen return inlet is formed in one side of the gas-water separator shell, a water outlet is formed in the bottom of the gas-water separator shell, a hydrogen return outlet is formed in the top of the gas-water separator shell, and a labyrinth structure is installed in the gas-water separator shell and used for separating water in hydrogen-containing mixed gas; the gas-water separator shell, the ejector shell and the buffer cavity shell are integrated into a whole, and the hydrogen circulating pump is integrated on the ejector shell, so that the volume is small, the hydrogen circulating pump can be mounted and used in some areas with small spaces, connecting pipelines between hydrogen supply components of a hydrogen path are omitted, the gas transmission distance is short, and the energy loss in the transmission process is reduced. And the pressurizing efficiency is improved, the mounting efficiency is high, and the freezing blockage condition caused by accumulated water in the pipeline when the temperature is too low is avoided.

The invention provides a gob-side entry narrow coal pillar advanced grouting reinforcement method. The method comprises the steps that before extraction of a gob-side entry upper section working face,a row of drill holes are formed in one side of an excavated upper section entry in the extending direction of a coal pillar; the drill holes are detected through a drill hole penetrometer; accordingto obtained information data of pressure and displacement in the drill holes, the compression degrees of the coal pillar at different depths and the development condition of cracks in a coal body areanalyzed, grouting reinforcement operation can be directly conducted on the part, with the large crack development, in the coal pillar, and fracturing operation is conducted on the part, with the small crack development, in the coal pillar; fracturing operation is conducted on the part, with the small crack development, in the coal pillar through an electric pulse device; the impact wave fracturing range is observed till fracturing of all the areas, with the small coal pillar cracks, in the whole upper section entry is finished; and on the basis of original anchor net supporting of the coal pillar, grouting anchor rods are placed in the drill holes to conduct grouting reinforcement on the interior of the coal pillar. According to the method, advanced reinforcement operation of the coal pillar can be effectively achieved.

The invention provides a transdermal medicine composition which comprises a carrier and active medicine ingredients, wherein the main ingredient of the carrier is crosslinked polyacrylamide, the degree of crosslinking of the crosslinked polyacrylamide is about 0.5-1%, the glass-transition temperature is 110-130 DEG C and 170-185 DEG C, and the aperture of a gel skeleton of the crosslinked polyacrylamide is 5-30 mum. The invention also provides a transdermal medicine kit comprising a micro needle array and the transdermal medicine composition. In the transdermal medicine composition provided by the invention, the crosslinked polyacrylamide used as the main ingredient of the carrier has good swelling performance, the swelled crosslinked polyacrylamide has good skin adhesion performance, and meanwhile, the carrier has good performance to release water soluble medicines. Moreover, the transdermal medicine kit of the invention can increase the transdermal rate of the transdermal medicine composition, and thus, medicines can effectively enter bodies to take more excellent medicinal effects.

The invention relates to acetylene cracking equipment, and in particular relates to a cracking furnace for acetylene production by partial oxidation of natural gas. The cracking furnace includes a mixer, a burner plate, a furnace body and a water quenching device; the furnace body is internally hollow, the upper end of the furnace body is provided with an opening; the burner plate is hermetically installed on the opening end of the furnace body, the lower end of the burner plate is provided with an internally-hollow gas reaction chamber with upper and lower openings, the gas reaction chamber is located in the opening end of the furnace body; the mixer is hermetically installed on the upper end of the burner plate, and a gas outlet end is communicated with the gas reaction chamber; the water quenching device is arranged in the furnace body, and is located below the gas reaction chamber and near the gas reaction chamber; the furnace body has an igniter, and the igniting end of the igniter extends into the gas reaction chamber. The cracking furnace has the advantages of simple structure, small volume, uniform gas mixing, high mixed gas combustion efficiency, convenient cleaning of carbon coke, high production efficiency, and effective reduction of production cost.

The invention discloses a fuel cell with spatial structural MEA (membrane electrode assembly). The fuel cell comprises the spatial structural MEA, diffusion layers, reaction gas flow channels, pole plates and water flow channels. The spatial structural MEA is of a square-crossing or crossed or honeycomb netted structure; the diffusion layers are of square tubular structures and are embedded inside the MEA or are enclosed by the MEA and the pole plates; spiral flow guide plates are arranged on the inner walls of the reaction gas flow channels; reaction gas can flow along the spiral flow guide plates on the inner walls of the flow channels and can flow into gas diffusion layers via small holes formed in the surfaces of the walls of reaction gas flow channels; the diffusion layers comprise the reaction gas diffusion layers and water vapor adsorption layers; the pole plates are arranged outside the diffusion layers; the water flow channels include cooling water flow channels and drain flow channels, and generated water can be adsorbed by the water vapor adsorption layers and can flow into the drain flow channels. The fuel cell has the advantages that the reaction activity areas can be effectively enlarged, the reaction gas delivery capacity can be improved, the power density of the unit volume can be increased, flooding can be reduced, and accordingly the gas can be sufficiently utilized; the quantities of single chips of fuel cell stacks can be reduced if the MEA fuel cell is applied to the fuel cell stacks, the volumes of the fuel cell stacks can be reduced, the fuel cell stack arrangement flexibility can be improved, and actual application of the MEA fuel cell can be expanded.

The invention provides fertilization equipment used for agricultural machinery and a fertilization method used for the agricultural machinery, and relates to the technical field of agricultural scarification and fertilization. The fertilization equipment used for the agricultural machinery comprises a device shell, a stirring mechanism, an even blanking mechanism and a scarification mechanism, wherein the even blanking mechanism is installed below the stirring mechanism, the scarification mechanism is installed on the right side of the even blanking mechanism, a stirring chamber is fixedly connected with the top of the device shell, a transmission chamber is arranged on the bottom of the stirring chamber, a discharging opening is formed in the position, close to the left end of the transmission chamber, on the bottom of the stirring chamber, a servo motor is installed on the top of the stirring chamber, one end of a stirring shaft is connected with an output end of the servo motor, theother end of the stirring shaft extends to an inner cavity of the transmission chamber, a stirring rod is welded to the stirring shaft, and a feeding cylinder communicates with the top of the stirring chamber. According to the fertilization equipment used for the agricultural machinery and the fertilization method used for the agricultural machinery, through various linkage parts, functions of stirring, blanking, scarification, earthing and the like are integrated into the whole device, operation is simple and convenient, the workload is small, fertilization is made to be easier, and the fertilization quality is guaranteed at the same time.

The invention discloses a vegetated ditch rainwater drainage pipe gallery system. The vegetated ditch rainwater drainage pipe gallery system comprises roadbed stones, a grading soil layer, geotechnical cloth, grading packing, rainwater perforated strainers, double-wall corrugated pipe inspection wells, arched regulation and storage equipment, an anti-seepage film and mud disposal equipment. The multiple roadbed stones are located at the upper ends of the left side and the right side of a vegetated ditch correspondingly. A foundation pit is longitudinally excavated in the lower end of the middle of the vegetated ditch. The arched regulation and storage equipment is longitudinally mounted in the foundation pit. One set of mud disposal equipment and one double-wall corrugated pipe inspectionwell are mounted at the lower end and the upper end of the arched regulation and storage equipment every multiple meters. Each rainwater perforated strainer is mounted at the upper end of the corresponding double-wall corrugated pipe inspection well. The anti-seepage film and the grading packing are sequentially laid at the upper end of tamped soil. The geotechnical cloth and the grading soil layer are sequentially laid at the upper end of the grading packing. Green plants are planted on the grading soil layer. A construction method of the vegetated ditch rainwater drainage pipe gallery systemcomprises the following steps of 1, excavation of the foundation pit; 2, construction of a geotechnical material; 3, mounting of the arched regulation and storage equipment, and laying of the gradingpacking; and 4, construction of a plantation layer. By means of the vegetated ditch rainwater drainage pipe gallery system and the construction method, rainwater can be effectively utilized.

The invention provides a method for preparing a silver gyrus / graphene / gold film composite three-dimensional Raman enhanced substrate and application thereof. The method includes steps of depositing gold nanometer thin films on the surfaces of quartz bases by the aid of thermal evaporation processes; transferring graphene by the aid of wet processes; evaporating silver gyrus nanometer structures on the surfaces of the graphene by the aid of thermal evaporation processes to obtain the silver gyrus / graphene / gold film composite three-dimensional Raman enhanced substrate. The graphene grows by the aid of chemical vapor deposition (CVD) processes. Silver gyrus / graphene / gold film three-dimensional composite structures can be prepared on flexible ultrathin mica sheets so as to obtain flexible Raman enhanced substrates for food safety detection if the steps are repeatedly carried out.

The invention relates to an integrated gas-water separator for a fuel cell; the separator comprises a gas-water separator shell, a return hydrogen inlet formed in one side of the gas-water separator shell, a water outlet formed in the bottom of the gas-water separator shell, and a return hydrogen outlet formed in the top of the gas-water separator shell, and further comprises a gas outlet detection pressure gauge mounted on the gas-water separator shell close to the hydrogen return outlet, a liquid level meter arranged on the gas-water separator shell close to the water outlet, a drain valve arranged on the gas-water separator shell at the water outlet, a heater, a nitrogen discharge valve and a labyrinth structure. The gas-water separator is compact in structure, small in size and high in integration degree, the gas outlet detection pressure gauge is used for detecting the gas pressure of the hydrogen return outlet to guarantee that the gas outlet pressure meets the requirement, the liquid level meter is used for detecting the water level of the bottom in the gas-water separator shell, and after the water level reaches a set value, the drain valve is opened in time to drain water. The heater is used for heating the bottom of the gas-water separator shell to prevent the water outlet from being frozen and blocked.

The invention discloses a planting method of gentiana macrophylla and belongs to the field of Chinese herbal medicine planting. The planting method includes: (1), selecting and preparing land; (2), seeding and cultivating seedlings; (3), thinning the seedlings; (4), transplanting; (5), performing field management, wherein potassium fertilizer, phosphorus fertilizer and foliage fertilizer are additionally applied during field management, and the foliage fertilizer comprises 0.1-0.15% of organic selenium, 0.5-1% of pyrophosphoric acid and 1-3% of amino acid compound liquid. In the planting method, the phosphorus fertilizer, the potassium fertilizer and farm manure are additionally applied, and a specific proportion is adopted, so that development of gentiana macrophylla rhizome can be improved, and yield of gentiana macrophylla can be increased; nutritional ingredients are provided for synthesis of gentiopicroside in gentiana macrophylla, content of gentiopicroside is increased, so thatmedicinal effect is improved. The foliage fertilizer contains organic selenium and pyrophosphoric acid, organic selenium can promote cell division and improve photosynthesis and chlorophyll synthesis,so that synthetic content of gentiopicroside is increased, and the medicinal effect of gentiana macrophylla is improved.

The invention relates to the technical field of fish and vegetable symbiotic breeding, in particular to a fish and vegetable symbiotic breeding system for mixed planting of Chinese herbal medicine and vegetables to prevent fish diseases, which comprises a fish pond, a decomposition device and a vegetable planting pond, a Chinese herbal medicine planting plate is arranged in the fish pond, and Chinese herbal medicine planting grooves are equidistantly formed in the Chinese herbal medicine planting plate; an oxygen generator is fixedly arranged on the surface of the bottom of the fishpond, an oxygen concentration probe is fixedly connected to the surface of the top of the oxygen generator, a decomposition device is arranged on one side of the fishpond, a circulating water pipe is fixedly connected between the decomposition device and the fishpond, and the two ends of the circulating water pipe penetrate through the decomposition device and the surface of one side of the fishpond respectively. According to the device, the fish pond, the decomposition device, the vegetable planting pond, the Chinese herbal medicine planting plate and Chinese herbal medicine are arranged, so that diseases of fishes can be prevented, and in this way, the problem that the system is destructively damaged due to the diseases of the fishes is effectively solved.

The invention provides a control method and system for passive regeneration of a hybrid electric vehicle. The method comprises the steps that the pressure difference between the front end and the rear end of a vehicle-mounted GPF is obtained, and a vehicle control unit calculates to obtain the carbon load of the vehicle-mounted GPF according to the pressure difference; if the carbon load is smaller than a first limit value, GPF accumulated carbon removal is not carried out, and if the carbon load is larger than a second limit value, active regeneration is carried out, wherein the second limit value is larger than the first limit value; and when the carbon load is smaller than the second limit value and larger than the first limit value, the inlet temperature of the vehicle-mounted GPF and the SOC of a battery are obtained, whether passive regeneration conditions are met or not is judged according to the inlet temperature of the GPF and the SOC of the battery, and if yes, the vehicle-mounted GPF is controlled to conduct passive regeneration. By means of the method, the hybrid power vehicle not prone to entering passive regeneration can also effectively enter a passive regeneration program, so that accumulated carbon particles are efficiently regenerated, and the situation that the hybrid power vehicle frequently enters active regeneration to affect drivability and economical efficiency is avoided.

The invention discloses a motorcycle oil-gas separator. An oil vapor channel is arranged in the separator body; an inlet of the oil vapor channel is a bell mouth; the outlet of the oil vapor channel is connected with a carbon tank through an oil vapor vent pipe; a floater is arranged in the bell mouth; the position at the bell mouth and on the separator body is in threaded connection with a stopper, and the floater can float up and down between the bell mouth and the stopper; a through hole is arranged on the stopper; and the bottom of the floater is provided with a vent groove communicated with a through-hole The oil-gas separator of the invention is fixed on the top of an oil tank, oil vapor can smoothly passes the separator to enter into the carbon tank, the floater floats upwards immediately to block the channel once fuel enters into the separator, thus the fuel cannot pass through the channel. The oil-gas separator has simple manufacturing process and convenient and reliable fixed installation, can effectively separate oil and gas, and avoid the entering of the fuel to the carbon tank.

A stripping apparatus for treating the inorganic treating liquid in order to remove organic pollutant from it is composed of a stripping unit, a heat exchange unit for heating said inorganic treating liquid, and a cooling unit for using cooling liquid to cool the over-heat steam before it is introduced to the heat exchanger in order to prevent the deterioration of inorganic treating liquid.

The invention discloses a glass-packaged ceramic feed-through filter and a preparation method thereof. The glass-packaged ceramic feed-through filter comprises a guide pin and a metal shell arranged in the middle of the guide pin in a sleeving mode, wherein the bottom of the metal shell is packaged through a glass body; a gasket sleeved on the guide pin is arranged above the glass body; a disc-shaped multilayer ceramic capacitor is sleeved on the guide pin above the gasket; a first gap is formed between the bottom of the disc-shaped multilayer ceramic capacitor and the top of the glass body; a second gap is formed between the disc-shaped multilayer ceramic capacitor and the inner wall of the metal shell; and the first gap is communicated with the second gap. The filter is advantaged in that the size of the first gap is increased through the gasket, an organic solvent can conveniently enter the first gap for soaking and washing in the later period, the second gap is reserved between the disc-shaped multi-layer ceramic capacitor and the inner side face of the metal shell, the first gap is communicated with the second gap, and therefore the residual position of scaling powder can be conveniently and effectively cleaned; and a residual problem of the soldering flux is effectively avoided.

The invention discloses a high-suction-stroke self-priming sewage pump not prone to being blocked. The problem that a self-priming sewage pump is prone to being blocked can be solved through cooperative use of a arranged filter pipe, a screening base and a screen, water flow backflow is prevented through a check valve, impurities in sewage can be effectively filtered and screened, foreign matter is prevented from entering the self-priming sewage pump, the influence of the impurities on the work of the self-priming sewage pump is eliminated, and the suction stroke effect of the self-priming sewage pump can be effectively improved. A connecting ring, a fixing hole, a first observation window and a second observation window match for use, so that the problem that the impurities filtered in the self-priming sewage pump are inconvenient to observe and treat can be solved, the screening condition of the impurities on the screen is observed through the first observation window and the secondobservation window, the filter pipe is horizontally placed on the ground, and the impurities on the screen are washed and cleaned through purified water, so that the filtering condition of the impurities is conveniently observed, the impurities are conveniently cleaned in time, the influence of the impurities on the work of the self-priming sewage pump is eliminated, and the working efficiency isimproved.

The present invention provides a minicircle DNA and a preparation method and an application thereof. The minicircle DNA contains a green fluorescent protein reporter gene encoding EGFP. The preparation method comprises the following steps: lox66 and lox71 sites are respectively introduced into both sides of a CMV-EGFP-polyA reading frame; a first amplified product is subjected to SacII and StuI double enzyme digestion, and after connection, escherichia coli Top10 competent cells are transformed; pYL19 intact plasmids are subjected to PCR amplification and XmaI and PacI enzyme cutting sites areintroduced; PGK-cre-polyA plasmids are subjected to PCR amplification and XmaI and PacI enzyme cutting sites are introduced; a second amplified product and a third amplified product are subjected toXmaI and PacI double enzyme digestion, and after connection, escherichia coli Top10 competent cells are transformed; and recombinant plasmids are extracted from the pYL46 intact plasmids and then transiently transfected into well-cultured human embryonic kidney HEK-293 T cells.

The invention relates to acetylene cracking equipment, in particular to a cracking furnace for producing acetylene by partial oxidation of natural gas. The cracking furnace of the present invention adopts partial oxidation of natural gas to produce acetylene, comprising a mixer, a burner plate, a furnace body and a water quenching device; the furnace body is hollow inside and has an open upper end; the burner plate is sealed and installed on the open end of the furnace body, and The lower end has a gas reaction chamber with an inner hollow and an open upper and lower end. The gas reaction chamber is located inside the opening end of the furnace body; the mixer is sealed and installed on the upper end of the burner plate, and the gas outlet is connected to the gas reaction chamber; the water quenching device is set on The furnace body is located below the gas reaction chamber and close to the gas reaction chamber; the furnace body has an igniter, and the ignition end of the igniter extends into the gas reaction chamber. Advantages: The overall structure is simple, the volume is small, the gas is mixed evenly, the combustion efficiency of the mixed gas is high, the cleaning of carbon coke is convenient, the production efficiency is high, and the production cost is effectively reduced.

The invention discloses a negative-pressure cleaning and disinfecting machine with a storage box. The machine comprises a storage box assembly, a liquid inlet device, a liquid inlet control valve, a second pipe connector and a discharge control valve, a second box connector is formed in the storage box assembly, the liquid inlet device, the liquid inlet control valve and the second pipe connectorare in pipeline connection in sequence, and the discharge control valve is in pipeline connection with the second pipe connector and is in parallel connection with the liquid inlet control valve. A movably connected valve element assembly is arranged in the second box connector; and when the valve element assembly is in a normally-closed state, the second box connector can be sealed, during use, an endoscope is placed in the storage box assembly, the second pipe connector and the second box connector are in sealed butt joint, and the valve element assembly is switched to be in an open state. In this way, a disinfectant can enter the storage box assembly from the liquid inlet device through the second box connector to disinfect the endoscope, after disinfection is completed, the disinfectant is discharged through the discharge control valve, then the storage box assembly is taken out, the valve element assembly is switched to be in the normally-closed state again, and therefore the storage box assembly is sealed.

The invention discloses a confined space operation type double-pipeline ventilation device and a working method thereof. The confined space operation type double-pipeline ventilation device comprisesa floating mechanism, an air blowing mechanism, an air extracting mechanism and a first monitoring mechanism, and the first air outlet end of the air blowing mechanism communicates with the floating mechanism. When the confined space operation type double-pipeline ventilation device is used, the first air inlet end of the air blowing mechanism is arranged outside a confined space, and the first air outlet end of the air blowing mechanism stretches into the confined space to communicate with the floating mechanism; and the second air outlet end of the air extracting mechanism is arranged outside the confined space, and the second air inlet end of the air extracting mechanism stretches into the confined space. According to the confined space operation type double-pipeline ventilation deviceand the working method thereof, gas is the confined space can be sufficiently stirred and extracted and meanwhile quickly and effectively replaced with fresh air in the atmosphere to enter the confined space, and the life security of operators and rescue workers in the confined space is ensured. The confined space operation type double-pipeline ventilation device is simple in structure, convenientto operate and easy to widely popularize, and the probability of death of the operators in the confined space can be greatly reduced.

The invention discloses a light condensing solar conversion system which comprises a paraboloid mirror, a light guide column and a light receiving device. The light guide column is provided with a first light guide block and a second light guide block which are the same in refractive index. The geometrical shape of the first light guide block is a part reserved between a section and a bottom when a right square pyramid is sectioned by a first plane. The first light guide block and the second light block uses the section as a combining face. The light receiving device comprises a photovoltaic conversion device and a photothermal conversion device. By the light condensing solar switching system, parallel sunlight beams can be focused, complex refraction of focused light on a incident plane of the light guide column is avoided or reduced, the focused light can totally enter the light guide column, loss of some light in the focused light due to the fact that some light is totally reflected at a light input end of the light guide column is prevented, information and energy carried by the focused light can be guaranteed to enter the light guide column, be transmitted in the light guide column effectively, and finally be transmitted to the light receiving device, solar energy can be converted into electric energy and thermal energy, and high solar energy utilization rate is achieved.

The invention discloses a pregnancy assisting sleeve which comprises a sleeve body (1) with a closed end and an open end. The pregnancy assisting sleeve is characterized in the closed end of the sleeve body (1) is provided with a sperm storage cavity (2) made of elastic materials, one side of the sperm storage cavity (2) is communicated with an inner cavity of the sleeve body (1) through an inlet hole (3), an ejecting hole (4) is formed in the other side of the sperm storage cavity (2), a shrinkage closed structure (5) is arranged at the inlet hole (3), and a sperm storage cavity supporting frame (7) capable of strutting the sperm storage cavity (2) is arranged in the sperm storage cavity (2). The pregnancy assisting sleeve is simple in structure, exquisite in design, and capable of enabling seminal fluid to be ejected into a womb after short time concentration so as to achieve the purpose of pregnancy.

The invention discloses an air bag support. During use of the air bag support, a medical worker adjusts a connecting plate till the length of the air bag support is up to a length needed by a fixing position of a patient, extrudes an inflatable balloon to expand an air bag so as to effectively fix the fixing position of the patient; meanwhile, the medical worker can accurately control the expansion magnitude of the air bag by checking a pressure meter; at the same time, a universal joint has a multi-direction rotation function, so that after the air bag support is fixed to an arm joint junction of the patient, and the arms of the patient can bend normally. By adopting the air bag support, the fracture position of the patient is fixed effectively through simple operation; the safety of the fixing position of the patient is enhanced through protection of the air bag; meanwhile, the medical worker can adjust the length of the air bag support according to the specific situation of the fixing position of the patient till the air bag support is up to the length needed by the fixing position of the patient, so that the demands of performing treatment on patients according to different illness situations are met.

The invention relates to a fuel cell hydrogen supply and hydrogen return integrated system comprising an integrated shell which comprises a gas-water separator shell on the lower portion, an ejector shell on the upper portion and a buffer cavity shell; a hydrogen return inlet is formed in one side of the gas-water separator shell, a water outlet is formed in the bottom of the gas-water separator shell, a hydrogen return outlet is formed in the top of the gas-water separator shell, and a labyrinth structure is installed in the gas-water separator shell and used for separating water in hydrogen-containing mixed gas; the gas-water separator shell, the ejector shell and the buffer cavity shell are integrated to be used for installing hydrogen path hydrogen supply components, a first proportional valve and a second proportional valve are integrated on the buffer cavity shell, the volume is small, the gas-water separator can be installed and used in some areas with small spaces, connecting pipelines between the hydrogen path hydrogen supply components are omitted, and the gas transmission distance is short. And the energy loss in the transmission process is reduced, the pressurization efficiency is improved, the installation efficiency is high, and the icing blockage condition caused by accumulated water in the pipeline when the temperature is too low is avoided.

The invention discloses a separator feeder with a crushing mechanism, one end of a discharge pipe is connected with a hopper, the other end extends outward, and the supporting legs are installed at the bottom of the hopper; a feeding screw is arranged inside the hopper, and one end of the feeding screw is connected to a driving mechanism connected, the other end extends towards the end of the discharge pipe; the driving mechanism drives the feeding screw to rotate; the upper cover of the opening is provided with a filter screen, and a grate is arranged in the middle of the filter screen, and the mesh of the grate is smaller than that of the filter screen; the edge of the opening is vertical Extend upwards to form a rear baffle and two side plates. The two side plates are equipped with telescopic cylinders. Squeeze discs are installed on the heads of the telescopic rods of the telescopic cylinders. The two extrusion discs are coaxially arranged and the telescopic cylinders can The two extrusion discs are driven to approach or move away from each other; a plurality of extrusion teeth are formed on the opposite end surfaces of the extrusion discs protruding outward in the axial direction. The structure is simple and the operation is convenient, which can make the concrete mortar enter the sand and gravel separator smoothly, and can also pulverize and recycle bulk materials.