130 results about "Osculum" patented technology

This invention relates to a water-saving waving or mixing full automatic washer inner barrel drainage structure, which includes the inner barrel that opens upward and whose bottom has the osculum through the outer barrel, wherein a axes around the related open orientation goes around the outer barrel, and the bibcock between the outer bottom of the inner barrel and the inner bottom of the outer barrel that obstructs the related osculum, the power driving outfit that joins or detaches the bibcock with the outer bottom, wherein the related joining face is the valve closed face; the charater is that the valve closed face is the cirque type that takes the related axis as its center, the osculum is between the maximal outer circle and the minimal inner circle of the cirque type. This design cancle the water deposit cavity of the present technology, which is applied in the water-saving waving or mixing full automatic washer; the design of the bibcockis the rigidity, which is more wearable than the corrugated pipe.

An automatic level-controlling draining dehumidifier mainly comprises a water pump suction pipe, a water pump drainage pipe, an electromagnetic water pump, a water pump fixing cover, an inductive switch fixing part, a water fullness alarming switch, a pumping alarming switch, a drainage quick adapter assembly, a level measuring floater, a water-collecting tray, an osculum, an osculum plug, a compressor and a heat exchanger; the connection is as follows: one end of the water pump suction pipe is connected with the water-collecting tray and the other end is connected with the electromagnetic water pump; one end of the electromagnetic water pump is connected with the water pump suction pipe; the other end of the water pump drainage pipe is connected with the quick adapter assembly; the level measuring floater is arranged below the water pump fixing cover; and the water fullness alarming switch and the pumping alarming switch are fixed by the inductive switch fixing part. The draining method of the dehumidifier comprises the following steps: one electromagnetic water pump is arranged on the side surface of the water-collecting tray; when the dehumidifier is working, the condensed water is generated by the heat exchanger and falls into the water-collecting tray; the level measuring floater rises slowly under the effect of buoyancy with the increase of water quantity so as to measure the height of the water collected in the water-collecting tray; the floater firstly touches the pumping alarming switch with the rising of level and then the electromagnetic water pump starts to work; the quick adapter at the bottom of a chassis can be connected with a rubber drainage tube with length of about 5M; then the electromagnetic water pump drains the water inside the water-collecting tray out of the room through the water pump suction pipe and the water pump drainage pipe; if the floater touches the pumping alarming switch firstly but the electromagnetic water pump does not work.

The invention discloses a cooling water filter device which comprises a cooling water pond, a circulating water pump and a filter tower, wherein the circulating water pump is connected with a water inlet pipe and a drain pipe, the water inlet pipe is connected with the cooling water pond, a filter is arranged in the filter tower, a spray pipe is horizontally arranged above the filter, the spray pipe is connected with the drain pipe, and the lower end of the filter tower is connected with the cooling water pond through a water return pipe. Water at the bottom of the cooling water pond is pumped and sent to the spray pipe of the filter tower via the circulating water pump, sprayed and then filtered by multiple layers of filter screens and multiple non-woven cotton filter layers of the filter, then the clean water returns into the cooling water pond via the water return pipe, and the effect of purifying the water quality can be achieved by repeating the operation multiple times; when the water quality becomes poor, the cooling water filter device is re-started again; therefore, the water in the cooling water pond can be purified, the blockage of a small hole in a water cooling roller of a printing machine can be avoided, the maintenance workload can be further reduced and the water consumption can be saved.

The invention discloses a central jet flow centrifugal washing machine. When the central jet flow centrifugal washing machine is used, an outer barrel head, clothes is uniformly placed into a gap between an inner barrel and a water penetration barrel, then washing powder is thrown into the gap, and the outer barrel head is covered. Running water flows into an outer barrel by virtue of a main water inlet electromagnetic valve, water in the outer barrel flows into the inner barrel by virtue of small holes on the inner barrel, and the water dose flow into the inner barrel until water level reaches up to a set value. A motor rotates to drive the inner barrel and the water penetration barrel to rotate, thus the water at the bottom of the inner barrel rotates upward to soak the clothes in the inner barrel. A water pump is electrified to extract the water in the outer barrel and water in the outer barrel is sprayed to the clothes by virtue of one row of nozzles on a spindle water pipe; and air blown out by an air blower is fed into a spindle gas pipe by virtue of a cooling pipe and a heater, and then the water sprayed out from the nozzles is blown away to form spray water which is uniformly poured on the clothes. The water on the clothes is thrown under the action of a centrifugal force when the inner barrel rotates at high speed and enters into the outer barrel to be recycled. After rinsing is finished, the clothes is dried, and the air blown out by the air blower is heated and is sprayed out from the nozzles to dry the clothes.

The invention relates to a novel and environmentally-friendly type wholly-TPU sports flooring, which comprises a TPU environmentally-friendly and wear-resistant layer, a reinforcing layer closely adjacent to the TPU environmentally-friendly and wear-resistant layer, a TPU elastic buffer layer closely adjacent to the reinforcing layer, and an osculum type shading waterproof layer closely adjacent to the TPU elastic buffer layer. The reinforcing layer is in the form of a glass fiber layer, a fine copper wire layer, or a disorderly fiber layer. The tensile strength of the glass fiber layer is 5200-5500 MPa. The tensile strength of the fine copper wire layer or the disorderly fiber layer is 450-500 MPa. The novel and environmentally-friendly type wholly-TPU sports flooring is highly resistant to abrasion, resistant to scratching, highly flexible, easy to recover, environmentally-friendly, and gentle in hand feeling.

The invention discloses a pedestal pan with the automatic flushing and drying functions and a control method thereof. A person sits on a closestool cushion, and the closestool cushion is heated. After the person completes defecation or urination, a button on the pedestal pan is pressed with hands. A telescopic gear reduction motor is powered on, a spiral feed nut rotates forwardly to drive a screw rod to move forwards, an adjusting gear reduction motor in the vertical direction is driven to slide forwards on a trapezoidal sliding groove, and a warm air nozzle stretches out of a small hole in the rear side spraying wall of a closestool type toilet bowl. The adjusting gear reduction motor in the vertical direction is powered on to rotate forwardly, and the warm air nozzle is driven to rotate upwards to align the anus. Water in a big water tank enters the closestool type toilet bowl to flush excrement through a powered-on big water tank electromagnetic valve. An axial flow fan is started, contaminated air in the closestool type toilet bowl is sucked out, and clean air is blown out of the warm air nozzle after deodorization, heating, perfuming and sterilization. Tap water passes a powered-on flushing electromagnetic valve and a constant pressure valve to be spayed out from a water spraying nozzle, and the water is heated and blown dispersedly into fog-like water by warm air to flush the anus. Then the flushing electromagnetic valve is powered off, the water spraying nozzle does not spray water any more, and the ass is blow-dried through the warm air.

A rich-lean burner includes an inner cylinder to which lean gas, which is a mixture of gas and combustion air, is supplied, and an outer cylinder that is coaxially disposed around the inner cylinder such that rich gas, which is a mixture of gas and combustion air, is supplied between the inner cylinder and the outer cylinder. A burner head, which has small holes and whose diameter decreases toward the leading end, is provided on an opening of the inner cylinder. The burner head is obtained by forming a perforated metal, in which the small holes are arranged in a zigzag manner, into a conical shape. An interval between each of the small holes is two to three times the diameter of the small holes. The total area of the small holes is larger than the area of an upper end opening of an upper inner cylinder.

The present invention provides a pneumatically flexible climbing robot, including a pneumatically flexible driver, a pneumatically flexible fetlock, a vacuum grip device and a osculum linker, the pneumatically flexible driver includes a front lid, a middle lid and a thick rubber hose, two ends of the thick rubber hose are jointed with the front lid and the middle lid, a pylome connected to atmosphere is set on the front lid, a helix steel wire is embedded in the wall of the thick rubber hose; the pneumatically flexible fetlock includes a back lid and three thin rubber hoses, one side of the middle lid is jointed with the thick rubber hose, the other end of the middle lid is set with three steps jointed with one side of three thin rubber hoses at 120 degrees, the other ends of three thin rubber hoses are jointed with the back lid, a helix steel wire is embedded in the wall of the thin rubber hose; two ends of the front lid, middle lid and back lid are fixedly connected with the osculum linker respectively, the osculum linker is fixedly connected with the vacuum grip. The pneumatically flexible climbing robot has a simple structure, small volume and strong flexibility.

A switching valve is provided with a spool housed in a spool housing, and a pilot chamber facing at least one end of the spool. An axial-direction channel is formed in the spool in the axial direction thereof. The axial-direction channel connects to the pilot chamber, connects to a tank channel according to a change in position of the spool via a small hole opening to the outer circumference of the spool, and discharges air inside the pilot chamber to the tank channel. By forming the axial-direction channel in a position off-centered from the center axis of the spool, the length of the small hole becomes shorter and the machining of the small hole becomes easier.

This invention discloses a wiring terminal structure. The structure comprises a wiring terminal the centre of which is equipped with a taper through hole, and a taper pin arranged inside the taper through hole; and a wiring sheet with a round through hole is arranged at the end of a large hole of the taper through hole of the wiring terminal. A bolt or a screw is matched with a nut, or the wiring terminal structure can be fixed on the positive electrode contact or negative electrode contact of a storage battery through a round through hole of a lug plate by adopting a rivet or on a start clamp corresponding to a positive electrode and a negative electrode; fine bare wires, which are obtained by stripping off protective layers at the end of a cable to be connected, are penetrated into the wiring terminal; and then a taper pin is inserted into the centre of each bare wire so that the fine bare wires are tightly attached to the inner wall of the taper through hole and the cable is connected with the storage battery. According to the wiring terminal structure provided by the invention, the fine bare wires are contacted with the wiring terminals and the taper pins tighter and tighter under the effects of pull force due to the unique V-shaped principle, so that the good conductive effects are kept and the structure is convenient for detaching.

The invention discloses a rotation-switched kitchen shower head, comprising an upper body and a lower body which can be rotatably sheathed. The upper body is provided with an upper water distributing body in linkage, the middle part of the top surface of the upper water distributing body forms an upward circular cavity, the circular cavity forms the inlet of the shower head, the bottom surface of the circular cavity is provided with at least one water distributing hole; the inner side of the lower body is fixedly provided with a lower water distributing body, the lower end of the lower water distributing body is fixedly provided with a water discharge part, a first cavity communicated with the water supplying cavity of the front cover of the shower head and a second cavity communicated with the water supplying cavity of a bubbler are formed between the water discharge part and the lower water distributing body, and the lower water distributing body is provided with a first osculum and a second osculum which are matched with the water distributing hole and respectively communicated to the first cavity and the second cavity. When the kitchen shower head is in switching, oil or dirt can not contaminate the osculum of the shower head, besides the shower head has the characteristics of simple structure and easy control.

The invention relates to a detecting device for a wafer, in particular to a detecting wafer osculum device to fix the wafers in a vacuum adsorption way while being detected. According to the technical proposal provided by the invention, a heater is arranged between a subpressure sucker and an adiabatic tray; a plurality of subpressure air drains are arranged on the surface of the subpressure sucker; a subpressure pore communicated with the subpressure air drain is arranged inside the subpressure sucker and a subpressure gas-type fitting is arranged in the subpressure sucker, which is communicated with the subpressure pore; a discharge hole which runs through the subpressure sucker, the heater and the adiabatic tray are arranged in the subpressure sucker. While in use, the detecting device for a wafer is very convenient in fixing or unloading the wafer, which can greatly reduce detecting time, improve detecting sufficiency and effectively reduce detecting cost.

The invention relates to a kind of solid-liquid separating apparatus by tandem connection of sediment and air floating. It is a combinatorial solid-liquid separating apparatus, which involves something used in dealing with daily life drink water, municipal sewage water and industrial wastewater. The invention contains sediment solid-liquid separating apparatus (1) and air floating solid-liquid separating apparatus (2), and the sedimentation apparatus (1) and air floating apparatus (2) is with tandem connecting. Punched tracery wall (12) is set in side of water outlet in sedimentation tank, in the top of which has an osculum. The invention connects the sedimentation tank and air floating tank effectively through the punched tracery wall (12), which can save areas; in the air floating tank, there are a oblique plate, a stand plate and a gully hole plate, which are helpful to generate laminar flow in the air floating tank; and it intensifies solid-liquid separating function in the air floating tank, reduces the amount of small bubble contained in water of the air floating tank, and declines the bubble-choking possibility that generating in the filtrated bed. This invention can resolve the problems that unitary solid-liquid separating apparatus can't adapt to the change of water quantity in the water source, so it can also improve the effectiveness of solid-liquid separation in water source.

The invention discloses a shearing mode magnetorheological damper comprising an inner barrel, an outer barrel and a telescopic barrel located between the inner barrel and the outer barrel. The telescopic barrel and the inner barrel as well as the outer barrel are sealed by seal rings so as to form a closed cavity. The cavity is filled with magnetorheological fluid. A telescopic rod moving along with the telescopic barrel is arranged in the telescopic barrel. A coil base is fixed to the tail end of the telescopic rod. An annular coil groove is formed in the outer wall of the coil base. A coil is wound in the coil groove. A magnetic field is produced after the coil is electrified. Working clearances are reserved between the telescopic barrel and the inner barrel as well as the outer barrel.The magnetic field acts on the magnetorheological fluid in the working clearances. A small hole is formed in the bottom of the outer barrel. A compensating barrel is installed outside the small hole.The shearing mode magnetorheological damper has significant low-frequency large-damping characteristics, when a vehicle turns, quite large antiroll damping force can be provided, thus rolling of a vehicle body is effectively restrained, and curve trafficability and driving safety of the vehicle are improved.

The invention belongs to a pressure reduction release eddy flow air floatation tank. An air dissolution water inlet, a waste water inlet, a scum discharge port, an exhaust port, a water outlet and a backflow port are formed in a tank body. A center pipe is arranged inside the tank body and is perpendicular to the tank bottom, a supporting plate is arranged at the bottom of the center pipe, a partition plate is arranged on the center pipe, blades are arranged on the upper portion of the partition plate, and small holes are formed in the pipe wall between the lower portion of the portion plate and an air dissolution water inlet pipe. A water outlet pipe is arranged on one side inside the thank and connected with the water outlet. A scum tank is arranged on the upper portion of the other side inside the tank and communicated with the scum discharge port. An exhaust pipe is arranged in the center of a tank body end socket. A unique structure is adopted for the air floatation tank, and all functional zones are independent in position and are closely combined in treatment function, so that waste water and agents are mixed more fully under hydraulic power, and the utilization rate of the agents is increased. Under the action of an eddy flow field, the scum-water separation process is intensified, and the scum separation efficiency is improved. The air floatation tank is simple in structure, the size of the air floatation tank can reduced, and the air floatation effect can be improved.

The invention relates to a spade heat-treatment medium recovery device and a method for recovering the medium using the device. The device comprises a conveying chain, a sprinkler device, a salt bath groove, a bleaching chamber, an immersing and diluting tank, a fresh water spray chamber and a three-level cooling pool. The salt bath groove is a heat-treatment iso-quenching bath provided with nitrate; the bleaching chamber for washing and diluting work pieces, the immersing and diluting tank and the fresh water spray chamber are arranged in a triangular shape, wherein the bottom of the bleaching chamber and the upper part of the immersing and diluting tank are provided with osculums of tail water in turn, and a washing recovery pipeline is communicated with an one-level recovering pool; three recovery pools constitute the three-level cooling pool which is arranged under the ground. The method comprises the steps of hoisting the work pieces on the conveying chain and entering the work pieces to the salt bath groove provided with the nitrate to carry out heat-treatment iso-quenching; then carrying out three-level washing and leading the fresh water tail water to enter the one-level recovery pool to be naturally cooled; and at last, recovering the medium in the three-level recovery pool. The invention has the advantages of convenient operation, saved energy, simple recovery process, closed circulated process and no pollution. The device can use the residual heat of a heating furnace.

The invention discloses a permanent magnetic classificator. The permanent magnetic classificator comprises a main frame, a power frame, a coupler, a speed reducer, a motor, a bearing pedestal, a support seat and a magnetic system adjustment device, also comprises a magnetic cylinder device composed of a magnetic cylinder, a seal cover, a magnetic system, a magnetic system shaft and helical blades, and also comprises a feeding device, an ore washing tank, an ore unloading plate, an ore discharge tank, a concentrate unloading hopper, a tailing unloading hopper, an ore washing water pipe with small water spray drill holes, and an ore unloading water pipe with small water spray drill holes. The helical blades are welded to the outer periphery of the magnetic cylinder. The magnetic system has 360 degrees of a magnetic wrap angle in the magnetic cylinder and has 270 degrees of a magnetic wrap angle close to the concentrate unloading hopper. Permanent magnets of the magnetic system are arranged on a magnet base from left to right in a ladder shape in an NS screw type and form a screw-type magnetic circuit. The permanent magnetic classificator is suitable for a large-scale production flow process, reduces an investment and a cost, can screen iron ores having a good grade, can be operated simply, is light, has a small covering area, saves energy and is convenient for operation and maintenance.

The invention belongs to the technology field of mould molding, in particular to a silica-gel sprinkler osculum mould structure, which is the improvement on the prior art. The silica-gel sprinkler osculum mould structure comprises a front mould (fixed mould) and a rear mould (movable mould); wherein, a conjoint structure or an inserted structure is arranged on an osculum small head face of the front mould and the rear mould (or the osculum small head face of the fixed mould and the movable mould); the conjoint structure comprises a front mould (fixed mould) insert pin, a rear mould (movable mould) insert pin, and conjoint positions; the conjoint positions of the front mould (fixed mould) insert pin and the rear mould (movable mould) insert pin are arranged on the osculum small head face; in the inserted structure, an inserted insert pin is arranged on the front mould (fixed mould) and an inserted position is arranged on the rear mould (movable mould). The silica-gel sprinkler osculum mould structure has wide application range and strong practicability, and is the trend of future silica-gel sprinkler products.

The invention relates to a closed type medical waste transfer cart which adopts the spraying, cleaning and disinfection mode and includes a wagon box, wheels, a cart handle and a spray system. The invention is characterized in that doors which can be opened or closed are arranged on the top of the wagon box and the underside at one side of the wagon box; a drain with a valve is arranged under the wagon box; the spray system of the transfer cart includes a group of inlet pipes and injection heads, the spray-head is a spherical spray-head with a plurality of osculums that are evenly distributed on the surface. The medical waste transfer cart provided by the invention adopts the internal spray cleaning device under the totally enclosed condition; the spraying disinfection can be made inside the cart when external power equipment is connected. The cart can achieve the hygienic inspection standard after the cleaning and disinfection, which effectively prevents the residual and generation of the microorganisms, prevents the medical waste transfer cart from becoming the flowing pollutant source and causing pollution to the hospital environment. At the same time, the invention prevents the polluted water or disinfecting fluid during the clearing and disinfection process of the carts from polluting or hurting the environment and the staff and enhances the occupational health protection to the staff.

An up-flow anaerobic ammonium oxidation granular sludge rectangular bed comprises a reactor main body which is divided into a water inlet buffer area, an up-flow reaction chamber and a three-phase separating area from bottom to top; the water inlet buffer area is provided with a water inlet pipe connected with the exterior, the water inlet pipe is connected with an annular water distributor, and the annular water distributor is provided with small water outlets at the lower end; the water inlet buffer area below the annular water distributor is provided with a filter screen, and the reactor main body below the filter screen is provided with a mud discharging port; the up-flow reaction chamber is connected with the settling chamber of the three-phase separating area via a diverging pipe; the three-phase separating area is divided into a settling area, a three-phase separating chamber and a gas collecting chamber; the settling chamber is disposed at the bottom periphery of the three-phase separating chamber and is communicated with the inner cavity of the diverging pipe via a sludge backflow seam; the gas collecting chamber is connected with the top of the three-phase separating chamber; the top of the gas collecting chamber is provided with a gas collecting hood; and the top of the gas collecting hood is provided with a gas outlet. The up-flow anaerobic ammonium oxidation granular sludge rectangular bed has the beneficial effects that: effective separation for water, gas and mud is realized, sludge loss is reduced, short flow is avoided, and the reactor is increased in effective working volume.

The invention provides a fly ash conveying system for a garbage incinerator. The fly ash conveying system for the garbage incinerator comprises an ash collecting hopper, a front ash pipe, a rear ash pipe, a working ash falling pipe, a slag catching machine and a slag catching pool in sequence from top to bottom according to the conveying direction of fly ash. The fly ash falls into the ash collecting hopper, the front ash pipe, the rear ash pipe and the working ash falling pipe in sequence from top to bottom, then enters the slag catching machine and is finally conveyed to the slag catching pool. A J-shaped valve is arranged at the connecting corner of the front ash pipe and the rear ash pipe, and a normally-opened ash pipe valve is arranged at the connecting corner of the rear ash pipe and the working ash falling pipe. A first air distribution pipe is arranged in the J-shaped valve, a second air distribution pipe is arranged at the front end of the normally-opened ash pipe valve, a plurality of air outlet small holes are separately formed in the first air distribution pipe and the second air distribution pipe, and a compressed air conveying pipeline connected with the air distribution pipes is further arranged. When fly ash accumulation occurs at the corner, compressed air is separately conveyed to the first air distribution pipe and the second air distribution pipe through the compressed air conveying pipe and is sprayed out from each air outlet small hole to blow away the accumulated fly ash, so that the fly ash falls into the ash pipes to play the role of ash removal.

The invention relates to a compositive therapeutic instrument for fatty liver, comprising a principle machine and a treatment head with two functions. The circuit of the principle machine comprises an input, a single chip microcomputer system, an output, an air pump, a pipeline, a stander and a power supply. The treatment head with two functions is provided with a modulation intermediate frequency electrode, an infrared electric heating device, a temperature transmitter and a negative pressure positioning osculum. The compositive therapeutic instrument for fatty liver uses two physical agents to provide activation energy for body pathological cells; when the modulation intermediate frequency is alternately exerted in an electrode pair, the infrared electric heating device radiates far infrared, and the shrink and diastole movement of the patient abdomen acts with infrared warming effect so that the blood flow volume of the liver is observably increased, liver cells are supplied with enough blood oxygen and various nutrients, the metabolism of the liver cells is increased, the excretion of the body fat accumulated in the liver is quickened, and the goal of liver function treatment and recovery is obtained. The invention has the advantages of double clinical effect, simple structure and no any side effect; and the invention is especially used for the fatty liver complication patients and the patients who can not choose aerobic exercise to treat fatty liver.

A soil humidity real-time keeping device free of monitoring comprises a plug, a water storage box, a basin bottom, a breather pipe, soil, a baffle with holes and cotton threads, wherein a water adding hole is formed in the upper portion of the water storage box, the water adding hole is sealed through the plug when water is not added, a discharge spout is arranged on the lower portion of the water storage box, the lowest position of the discharge spout is hung above the basin bottom, a plurality of small holes are formed in the four walls of the breather pipe, the bottom of the breather pipe is communicated with an inner cavity of the basin bottom, the soil is placed on the upper face of the baffle with the holes, the baffle with the holes is hung above the basin bottom, and the cotton threads pass through the small holes in the middle of the baffle with the holes and are connected with the bottom of the basin bottom and the soil. According to the soil humidity real-time keeping device, the soil water feeding method can be changed, moisture is diffused from bottom to top so that water can be supplied for the soil through the difference between the soil humidity and the water surface humidity, the humidity of the soil can be automatically kept constant for a long time, water resources and the like are not wasted, and the soil humidity can be kept by adjusting the number of the cotton threads and the distance between the baffle with the holes and the basin bottom.

The invention provides a selective catalytic reduction (SCR) air mixing atomizing nozzle which comprises a nozzle inner cavity, a urea conveying pipe, an upper nozzle outer sleeve, a lower nozzle outer sleeve, a high-pressure air conveying pipe, a sprayer, a connection sleeve and a urea pipe joint. A plurality of large air inlets are evenly distributed in the circumferential face of the upper portion of the nozzle inner cavity. A plurality of small flow guiding holes are evenly distributed in the circumferential face of the middle portion of the nozzle inner cavity. A conical contractive channel hole is formed in the center of the bottom of the nozzle inner cavity. One end of the urea conveying pipe stretches into the nozzle inner cavity and is connected with the nozzle inner cavity; the urea conveying pipe penetrates through the upper nozzle outer sleeve and is connected to the upper nozzle outer sleeve, and the nozzle inner cavity and the upper nozzle outer sleeve are made to be coaxial; the other end of the urea conveying pipe is connected with the connection sleeve; the urea pipe joint is inserted into the other end of the connection sleeve; and one end of the high-pressure air conveying pipe is connected to the upper portion of the upper nozzle outer sleeve. According to the SCR air mixing atomizing nozzle, reinforced atomization is achieved three times, and finer and more uniform mist drops are obtained; in addition, the risk of ammonia leakage of an SCR system is effectively reduced, and the NOx conversion efficiency is improved; and the nozzle is not prone to blockage.

The invention discloses an exhaust muffler of a hydrogen fuel cell system. The exhaust muffler comprises an outer layer cylinder body, an air inlet end cover and an air outlet end cover, wherein the air inlet end cover and the air outlet end cover are arranged at the two ends of the outer layer cylinder body, and an air inlet and an air outlet are formed in the air inlet end cover and the air outlet end cover respectively; five cavity dividing plates are arranged inside the outer layer cylinder body, specifically, the first-type cavity dividing plate, the second-type cavity dividing plate, thefirst-type cavity dividing plate and the two third-type cavity dividing plate which are sequentially arranged; an arc-shaped inner layer mesh plate is arranged above the cavity dividing plates insidethe muffler, and the inner layer mesh plate is spaced from the inner wall of the muffler by a certain degree and penetrates through the whole muffler; and the inner layer mesh plate is fully providedwith small holes in a punched mode, and silencing cotton fills the cavity between the inner layer mesh plate and a muffler cylinder body. According to the exhaust muffler of the hydrogen fuel cell system, the high-frequency noise elimination capability with a wide frequency band is achieved, the problem that the noise generated during tail gas emission is too large can be solved, the moisture inthe tail gas can be removed, the low exhaust back pressure can be kept, and the overlarge power loss of the hydrogen fuel cell system is avoided.

The invention discloses an improved clutch master cylinder assembly and relates to the field of automobile parts. The improved clutch master cylinder assembly comprises a cylinder body, an end connector, an oil outlet connector and a piston assembly, wherein a clamp and a stifling cover are arranged on the oil outlet connector. The oil outlet connector and the cylinder body of the improved clutch master cylinder assembly are integrally formed, so that the strength of the master cylinder assembly is greatly improved, sealing performance is good, no oil leakage phenomenon does not occur, and meanwhile manufacturing difficulty is also reduced. A compensation hole and an oil inlet hole are respectively formed in a piston outer circle and the cylinder body, so that a small hole of diameter 0.7 is not needed to be machined, oil compensation is achieved, and meanwhile the complexity degree of the whole cylinder body is also reduced.

The invention discloses a wafer scrubbing device. The wafer scrubbing device comprises a roll brush shaft, a roll brush, a water inlet end and a driving end. The roll brush shaft is hollow, and a plurality of small holes are formed in one section of the shaft wall. The roll brush is arranged on the section, where the small holes are formed, of the roll brush shaft in a sleeving mode and covers the small holes. The water inlet end is connected to a first end of the roll brush shaft. The driving end is connected to a second end of the roll brush shaft. The water inlet end is supported on a front side plate. The driving end is supported on a rear side plate. The bottom end of the front side plate is connected with the rear side plate through a connecting rod. The water inlet end comprises a hollow water inlet end spindle. A first end of the water inlet end spindle is connected to a water inlet pipe joint, and a second end of the water inlet end spindle is connected with the roll brush shaft in a clamped mode. The driving end comprises a driving end spindle. A first end of the driving end spindle is connected with the roll brush shaft through a locking mechanism, and a second end of the driving end spindle is connected to a motor. Through the connecting mode that one end of the roll brush shaft is clamped and the other end of the roll brush shaft is locked, the connection rigidity of the roll brush shaft is greatly improved, axial movement during high-speed rotation is avoided, and the better wafer scrubbing effect is achieved.

The invention provides a method for sponges to release larvae in a concentrated manner by light induction, and relates to the sponges. The method comprises steps of selecting adult sponges attached and grown on the culturing ropes or fishing nets in a natural sea area; cutting a small opening near a osculum of each sponge, and observing the brood amount of the female sponge on the base of the osculum; selecting a proper female sponge with plenty of sponge embryos which are relatively mature in growth; preparing a larva collecting net, wherein the net is made of screen meshes of which each diameter is smaller than the diameter of the sponge embryo, the larva collecting net is in a shape of a inverted bottle, the meshes of the bottleneck of the net is smaller than the rest of the net, and the opening of the bottle of the net is connected with a larva collecting pot; after the sun set, putting a covering on the above of the female sponge; removing the covering before sun rise, and sleeving the larva collecting net to the outside of the whole female sponge; after sun rise, moving the female sponge from the larva collecting net to the natural sea area to culture and wait for collecting the larvae next day; lifting the larva collecting net so that the seawater is filtered out naturally, collecting the larvae in the larva collecting pot at the bottom, taking the larva collecting pot off, and moving the larvae in an attachable culture container. The method provided by the invention is simple to operate, safe and efficient, and has no need to add extra chemical agents.