31results about How to "Free passage" patented technology

The invention provides crystalline-type waterproof paint for preventing cement leakage, which belongs to the field of waterproofing work in constructional engineering, solves the technical problem of cement leakage prevention in the prior art, and is prepared from the following raw materials in weight ratio: 52.5 ordinary Portland cement, No. 95 granulated blast furnace mineral powder, penetrating agent, expanding agent, silica fume, quartz sand, modified bentonite, modified sodium silicate, complexing agent and crystallized precipitant. The cement-base waterproof paint provided by the invention enables concrete to be waterproof, is inorganic material, has the service life as long as concrete, improves concrete density to improve the concrete strength, and has the characteristics of low possibility of leakage, carbonization resistance, resistance to harmful substance permeation, simplicity in construction operation, low construction cost and the like.

The invention relates to an application of a porous ion conducting membrane in a lithium-sulfur battery. The porous ion conducting membrane is a typical asymmetric porous membrane in structure, and is formed by superimposing a dense surface layer and a macroporous support layer; the aperture of the membrane surface layer is about 8-10nm; the porosity is 30%-70%; the thickness is 8-20 microns; the thickness of the macroporous support layer is 10-50 microns; the mean size of holes is 2-5 microns; and the porosity is 50%-80%. The prepared porous ion conducting membrane is applied to the lithium-sulfur battery; the controllability on the current efficiency of the lithium-sulfur battery can be achieved by adjusting the aperture of the membrane; and relatively high energy conversion efficiency and cycling stability are obtained.

The invention provides a high-energy-efficiency cooperative area detection method for an unmanned ship. The method comprises the steps that an advancing mode based on an Archimedes spiral is adopted for the unmanned ship to serve as a main body movement mode in an area; regular hexagon-based sub-region division is carried out on the to-be-detected region, and an obstacle region and a free region are divided; and task area distribution is carried out on each unmanned ship, and respective advancing routes are planned. According to the invention, an advancing mode based on an Archimedes spiral isadopted, so that the unmanned ship always advances at a constant speed in a subarea detection process. According to the invention, regular hexagon-based sub-region division is carried out on the to-be-detected region, so that the unmanned ship has a relatively high coverage rate on the basis of Archimedes spiral advancing. The invention provides a task area distribution mode based on energy consumption balance, so that the task area size of each unmanned ship is equivalent to the greatest extent, and the energy consumption of the unmanned ship is ensured to be balanced as much as possible.

The invention relates to a flow limiting shutoff valve which comprises a flow stop valve and a block valve. The flow stop valve comprises a valve body, a piston and a bias component. A through cavity is formed on the valve body, a water outlet of the through cavity is provided with a sealing seat, the piston can be arranged in the through cavity axially movably back and forth, and a middle cavity is formed by matching among a corresponding outer wall of the piston, an inner wall of the through cavity and the sealing seat. A flow-guiding through hole with a preset through-flow area is formed on the piston, and the middle cavity is communicated with a water inlet through the flow-guiding through hole. One end of the piston towards the sealing seat is provided with a sealing element. When flow of the water inlet is smaller than a preset value, the sealing element is separated from the sealing seat; when the flow of the water inlet is larger than the preset value, the sealing element positioned on the piston is in contact seal with the sealing seat; and when the block valve is closed, automatic reset of the piston can be achieved.

The invention belongs to the field of air purification and discloses a purification device for removing air-carried life particles. The purification device comprises a guiding jet device, a particle collector, at least one filter, an axial flow fan and a casing. By utilizing air jet flow impact, the life particles in the air are separated and inactivated, and thus sterilization efficiency is improved; air flow flows through a filtering device, so that the remaining air-carried particles are removed, and finally an effect of purifying indoor air is achieved. According to the device, a microwave heating method is further adopted, so that the whole device, and particularly the filter, maintain a dry state, and reproduction of microorganisms in the purification device and on the wall of the purification device is avoided. The device can be placed in an indoor air purifier or an air conditioning system pipeline, and is of great significance for reducing the content of disease source particles in the air and improving workers' health level and safety guarantee capacity of a building.

The invention relates to a vancomycin slow release microsphere with magnetic filed compliance and a preparation method thereof. The preparation method comprises the following steps: dissolving chitosan in organic solvent with emulsifying method, dispersing vancomycin and nanoscale ferroferric oxide magnetic powder, then slowly adding dispersing medium, and then adding surfactant, so that water and oil phase are mutually formed as one phase and surface tension is decreased; after emulsifying, adding crosslinking agent, so that chitosan crosslinks to form macromolecule and enwrap the vancomycin and ferroferric oxide magnetic powder; and finally, filtering and drying to obtain vancomycin slow release microsphere with magnetic filed compliance. After being infused to body, the microsphere can gather in local pathologic change part under guidance of outer magnetic field so as to improve local drug concentration and reach the purpose of targeted therapy of drug. The use of the vancomycin slow release microsphere with magnetic filed compliance can greatly improve the efficiency of drugs.

The invention discloses a waterproof air-permeable artificial leather which comprises a waterproof layer and an artificial leather layer, wherein the waterproof layer is bonded on the upper part of the artificial leather layer; the surface of the artificial leather layer is provided with vent holes; the waterproof layer is composed of PP (polypropylene) spunbonded nonwoven fabrics and a PE (polyethylene) high-polymer waterproof air-permeable membrane; and the PE high-polymer waterproof air-permeable membrane is bonded between the PP spunbonded nonwoven fabrics. The PP spunbonded nonwoven fabrics in the waterproof layer of the waterproof air-permeable artificial leather have the main functions of increasing the tensile force and hydrostatic pressure and protecting the middle layer PE high-polymer waterproof air-permeable membrane; the micropore diameter of the PE high-polymer waterproof air-permeable membrane is 0.2-10 micrometers, and the porosity is up to 80% or above, i.e. more than one billion of micropores exist in one square centimeter; since the micropore diameter is 1 / 5000-1 / 20000 of the water drop diameter and is 700 times or so of the water vapor molecule diameter, the PE high-polymer waterproof air-permeable membrane can prevent water drops from passing through and enable water vapor molecules to pass through freely, and sweat vapor is discharged to the outside by utilizing temperature difference between the cloth inside temperature and outside ambient temperature and the humidity difference.

The invention provides a high-temperature molten aluminum filtering and quantitative casting device. The high-temperature molten aluminum filtering and quantitative casting device is accurate in feeding quantity, free of product waste and capable of filtering out and removing large-particle impurities. The high-temperature molten aluminum filtering and quantitative casting device comprises a smelting furnace and a mold conveyor belt. A plurality of molds are equidistantly arranged on the mold conveyor belt. A rotary disk arranged above the conveyor belt through a support. The tail end of a spindle of the rotary disk is connected with a rotary disk power unit. A plurality of casting channels are uniformly distributed on the rotary disk. One end of each casting channel communicates with thesmelting furnace through a molten aluminum channel, and the other end of each casting channel is connected with the corresponding mold. The high-temperature molten aluminum filtering and quantitativecasting device further comprises a PLC device. The molten aluminum channels include the first molten aluminum channel communicating with the smelting furnace, the third molten aluminum channel matchedwith the casting channels and the second molten aluminum channel connecting the first molten aluminum channel with the second molten aluminum channel. Filter devices are arranged between the first molten aluminum channel and the second molten aluminum channel and the between the second molten aluminum channel and the third molten aluminum channel.

The invention discloses a steel water stone separation blocking dam and a mounting method thereof. The dam comprises a concrete foundation and a blocking dam body structure arranged on the concrete foundation; the blocking dam body structure comprises two blocking dam body steel pipe sets, each blocking dam body steel pipe set comprises at least two blocking dam body steel pipes arranged on one plane in parallel, the two blocking dam body steel pipe sets are symmetrically fixed to the concrete foundation, every two adjacent blocking dam body steel pipes are connected through a fixing pipe, a horizontal base bottom plate is welded to the lower end of each blocking dam body steel pipe, and the base bottom plate and the concrete foundation are fixedly connected through foot margin anchor rods. A steel structure is adopted to serve as a blocking dam body, mounting construction is convenient, good water permeability is achieved, river water and gravel are separated, massive rocks and large broken stone are intercepted, water and sand can freely pass, the water flow is not affected, and cleaning is facilitated.

The invention discloses a space-adjustable aquatic plant co-culture device. The space-adjustable aquatic plant co-culture device comprises a first stainless steel grid mesh, a stainless steel grid mesh, a third stainless steel grid mesh, a co-culture glass tank and glass strips and is characterized in that the glass strips are fixed to the first long side face and the second long side face of the rectangular co-culture glass tank through glass cement; the first stainless steel grid mesh, the second stainless steel grid mesh and the third stainless steel grid mesh are inserted in a groove formed by the glass strips freely or at equal intervals. The space-adjustable aquatic plant co-culture device is simple in structure, convenient to maintain and low in cost, experiment errors are substantially reduced, experiment efficiency is improved, the experiment accuracy rate is increased and experiment precision is improved. The stainless steel grid meshes have the advantages that the grid meshes are resistant to acid and alkali corrosion and high-temperature oxidization and trace level chemical substances released by plants in a co-culture system are not adsorbed, and the stainless steel grid meshes can be used for a chemical competition experiment and high-temperature sterilization before the experiment. The grid meshes can be reused after the experiment ends.

The invention discloses a flapping-wing aircraft. People have been long expecting the dream of flying by flapping wings to come true. In the invention, a structure combining small and large wings is used for realizing flying by flapping wings, and with smart conception and reasonable power, flight can be realized. The flapping-wing aircraft solves the problem that the flapping wings need to flap and to stop and release air flow at the same time by combining the flapping and stopping and releasing air flow smartly in a way that the large wings flap while the small wings stop and release air flow. In the flapping process of the large wings, a resistance is generated for producing a raising force, and thus, flying by flapping wings is realized.

The invention provides a preparation method and application of an electrochemical sensor based on tyrosinase nanocapsules. First, the surface modification of tyrosinase: adding alkenyl-containing groups, through adsorption, covalent crosslinking, etc. Immobilization of alkenyl-bearing small molecules to the surface of enzyme molecules, making them polymerizable enzyme single molecules; followed by in situ free radical polymerization: adding stabilizers, monomers, crosslinkers and initiators to the surface-modified In the tyrosinase solution, through in-situ free radical polymerization, the polymer forms a thin layer of network polymer on the surface of the enzyme molecule to form an enzyme single-molecule nanocapsule; freeze-drying to obtain the tyrosinase nanocapsule; Finally, an electrochemical sensor based on tyrosinase nanocapsules was prepared. The sensor not only has high sensitivity, low detection limit and high selectivity, but also has high stability, reliability, portability, low cost and simple preparation method.

The invention relates to the field of bee breeding, in particular to a bee box with a queen wasp prisoning device. The bee box comprises a box body with an opening, supporting legs are arranged on theperiphery of a lower box wall, and an auxiliary cover, a honey box and a hive box are successively arranged between an upper box cover and the lower box wall; a vertically placed partition plate in aflat base tapered shape is in coupling connection with the inside of the honey box, and a vertically placed rectangular hive plate is in clearance fit with the inside of the hive box; an opening is formed in the center of a box cover, the queen wasp prisoning device penetrates through the opening and comprises a main rod, and the lower end of the main rod is slidably connected with a cylindricalsleeve, the sleeve is slidably connected with the main rod, and a transverse horizontal plate is placed below the sleeve; at least five cage bars surrounding the cylindrical sleeve to form a round matrix are welded with the sleeve and the transverse horizontal plate, and the distance between any two adjacent cage bars is same. The purpose is that by utilizing the cage bars, the sleeve and the transverse horizontal plate, a sliding block connecting rod mechanism is formed, the activity range of the queen wasp in the queen wasp prisoning device is gradually expanded, and therefore the problem that due to the fact that the queen bee is released, the queen wasp is in a rage state to run around, so that worker bees are irritated to surround the queen wasp is solved.

The invention provides a preparation method and application of an electrochemical sensor based on a tyrosinase nanocapsule. The preparation method comprises the following steps: firstly, performing surface modification of tyrosinase: adding an alkenyl-containing group, and immobilizing alkenyl-containing small molecules on the surface of enzyme molecules in modes of adsorption, covalent crosslinking and the like to make the enzyme molecules become polymerizable enzyme single molecules; then carrying out in-situ free radical polymerization: adding a stabilizer, a monomer, a cross-linking agent and an initiator into a surface-modified tyrosinase solution, and carrying out in-situ free radical polymerization to enable the polymer to form a thin-layer network polymer on the surface of an enzyme molecule so as to form an enzyme single-molecule nanocapsule; freeze-drying to obtain the tyrosinase nanocapsule; and finally, preparing the electrochemical sensor based on the tyrosinase nanocapsule. The sensor is high in sensitivity, low in detection limit, high in selectivity, high in stability, reliable, portable, low in cost and simple in preparation method.

The invention relates to a flow limiting shutoff valve which comprises a flow stop valve and a block valve. The flow stop valve comprises a valve body, a piston and a bias component. A through cavity is formed on the valve body, a water outlet of the through cavity is provided with a sealing seat, the piston can be arranged in the through cavity axially movably back and forth, and a middle cavity is formed by matching among a corresponding outer wall of the piston, an inner wall of the through cavity and the sealing seat. A flow-guiding through hole with a preset through-flow area is formed on the piston, and the middle cavity is communicated with a water inlet through the flow-guiding through hole. One end of the piston towards the sealing seat is provided with a sealing element. When flow of the water inlet is smaller than a preset value, the sealing element is separated from the sealing seat; when the flow of the water inlet is larger than the preset value, the sealing element positioned on the piston is in contact seal with the sealing seat; and when the block valve is closed, automatic reset of the piston can be achieved.

The invention discloses a space-adjustable aquatic plant co-culture device. The space-adjustable aquatic plant co-culture device comprises a first stainless steel grid mesh, a stainless steel grid mesh, a third stainless steel grid mesh, a co-culture glass tank and glass strips and is characterized in that the glass strips are fixed to the first long side face and the second long side face of the rectangular co-culture glass tank through glass cement; the first stainless steel grid mesh, the second stainless steel grid mesh and the third stainless steel grid mesh are inserted in a groove formed by the glass strips freely or at equal intervals. The space-adjustable aquatic plant co-culture device is simple in structure, convenient to maintain and low in cost, experiment errors are substantially reduced, experiment efficiency is improved, the experiment accuracy rate is increased and experiment precision is improved. The stainless steel grid meshes have the advantages that the grid meshes are resistant to acid and alkali corrosion and high-temperature oxidization and trace level chemical substances released by plants in a co-culture system are not adsorbed, and the stainless steel grid meshes can be used for a chemical competition experiment and high-temperature sterilization before the experiment. The grid meshes can be reused after the experiment ends.

A device is connected with a nonwoven fabric winder (10) so that the nonwoven fabric is separated at a preset position in a period of winding to a winding shaft and partial nonwoven fabric which is generated by separation and has a free end aligned to the conveying direction of the nonwoven fabric is conveyed to the winding shaft that is configured in a manner of being opposite to the conveying direction. The invention further discloses a nonwoven fabric winder with the device and a driving device. The driving device drives the device from a waiting position to an operation position. Then thenonwoven fabric is wound on a first winding shaft by means of a contact roller (8). The device is also provided with a pressure element so that the first winding shaft is pressed to the contact rollerand the to-be-wound nonwoven fabric is wound on the first winding shaft because of friction. The device is used for separating the nonwoven fabric and partial nonwoven fabric is conveyed to a secondwinding shaft. The invention further relates to a method for operating the nonwoven fabric winder, wherein the method comprises the steps of winding the entered nonwoven fabric around the first winding shaft; if a separation state (S2) is detected, separating the nonwoven fabric, and furthermore after separation of the nonwoven fabric is finished, conveying the partial nonwoven fabric in the direction of the second winding shaft.

The invention provides a data center cross-regional inspection system, a control method, a device and a storage medium, which are applied to a financial system, in particular to a data center. The data center comprises a plurality of regions, a plurality of regions are isolated by a plurality of fireproof doors, and the control method of the data center cross-regional inspection system comprises the following steps: obtaining an inspection task, planning an inspection route according to the inspection task; acquiring an inspection route, and controlling the robot to inspect according to the inspection route; and obtaining position information of the robot in real time, and when the robot gets close to any fireproof door, controlling the fireproof door to be opened so that the robot can pass through. According to the control method of the cross-regional inspection system of the data center, the inspection task can be set and the inspection route can be planned according to the background system, the robot can drive out of the fireproof door to inspect different regions, the cross-regional inspection capability of the robot is realized, the inspection range is expanded, the anti-trailing system is additionally arranged on the fireproof door, and people can be effectively prevented from following.

The invention discloses a humidity-sensitive color-changing microcapsule and a preparation method. The preparation method comprises the following steps: step 1, weighing 20-40 parts by mass of anthocyanidin, 10-12 parts by mass of an emulsifier, 6-8 parts by mass of a color developing agent and 6-8 parts by mass of an accelerant, dissolving the weighed materials in an organic solvent, and stirring the materials at 70-75 DEG C and 150-300 r / min for 1-2 h to obtain an organic solvent / anthocyanidin mixed solution; step 2, dropwise adding a certain amount of tetraethyl orthosilicate and a silane coupling agent into the mixed solution in the step 1, adding a reagent for adjusting the pH value to enable the pH value to be 9, and stirring and reacting at 70-75 DEG C and 150-300r / min for 1.5-2.5 hours so as to obtain a uniformly dispersed microcapsule suspension; and step 3, removing the solvent from the microcapsule suspension prepared in the step 2 through reduced pressure distillation, and drying at 50 DEG C for 12 hours to obtain the anthocyanin / SiO2 microcapsule. The humidity-sensitive color-changing microcapsule wall material has a porous structure and a hydrophilic material, and is printed on a fabric in a screen printing manner, and the fabric is sensitive in color change when meeting humidity, high in reversible resilience and reusable.

The invention discloses an all-terrain vehicle with a protective structure, including an all-terrain vehicle main body, an automatic lock, wheels, a second part of a two-dimensional code and a second safety helmet, the wheels are arranged on the all-terrain vehicle main body, and the automatic lock is arranged on the all-terrain vehicle On the main body and connected with the wheels, the second safety helmet is loaded on the automatic lock, the second safety helmet is provided with a variable part of the two-dimensional code group, the automatic lock is provided with the second part of the two-dimensional code, the variable part is two-dimensional The code group and the second part of the QR code are combined to form a complete QR code. After scanning the complete QR code, a command to lock the car is issued, and the automatic lock locks the helmet and the wheel together. The invention provides an all-terrain vehicle with a protective structure, which effectively solves the potential safety hazard caused by driving without a helmet when driving an all-terrain vehicle, and the helmet must be put in place to Locking the car and turning off the engine greatly reduces the possibility of losing the helmet, and using different QR codes when driving and locking the car greatly reduces the possibility of the helmet being stolen.

The invention relates to the application of a porous ion-conducting membrane in a lithium-sulfur battery. The structure of the porous ion-conducting membrane is a typical asymmetric porous membrane, which is composed of a dense skin layer and a macroporous support layer; the pore diameter of the membrane skin layer is about The thickness is 8-10nm, the porosity is 30%-70%, and the thickness is 8-20 microns; the macroporous support layer is 10-50 microns thick, the average size of the pores is 2-5 microns, and the porosity is 50%-80%. The porous ion-conducting membrane prepared by the invention is applied to the lithium-sulfur battery. By adjusting the pore size of the membrane, the controllability of the current efficiency of the lithium-sulfur battery can be realized, and higher energy conversion efficiency and cycle stability can be obtained.

The invention discloses a high-efficiency brood hatching device and an experimental method for Procambarus clarkii. A water inlet is provided at a higher position on one side of the box body, and a water outlet is arranged at the bottom of the other side side of the box body. The microporous aeration equipment includes an oxygen inlet. Pipe and microporous oxygen-increasing bubble strips, the outside of the box is equipped with oxygen inlet tubes, the bottom of the box is equipped with micro-porous oxygen-increasing bubble strips, the bottom of the box is equipped with PVC square tubes, and the inner walls of the PVC square tubes are equipped with the first storage rack, the second rack is provided under the first rack on both sides of the PVC square pipe, and plant fibers are arranged on the first rack and the second rack; the present invention can increase the number of egg-bearing shrimp per unit area through the multi-layer egg-bearing hatching device. Capacity, and can use the limited space to expand the activity area of ​​juvenile shrimp. This device is convenient to transport and easy to operate. It can improve the breeding habitat of egg-bearing shrimp and seedlings, and improve the egg hatching rate, hatching capacity per unit area, and seedling quality.

The invention discloses a preparation method and application of a titanium silicalite molecular sieve catalyst. The preparation method comprises the following steps: 1) synthesizing a TM-HTS catalyst doped with an Ag element, namely an Ag-HTS catalyst; and 2) introducing ammonia gas into the Ag-HTS catalyst under the protection of inert gas, heating to 300-800 DEG C, and reducing for 1-5 hours. The application refers to application of the titanium silicalite molecular sieve catalyst in visible light catalytic oxidation reaction, especially application in catalytic oxidation of cyclohexene. The response wavelength of the titanium silicalite molecular sieve can be prolonged to a visible light region, and the total selectivity of 2-cyclohexenol and 2-cyclohexenone is as high as 95.5% under the condition of high conversion rate; in the absence of a solvent and an initiator, the cyclohexene is catalytically oxidized in a light path form, so that the energy consumption is reduced, the types of oxidation products of the cyclohexene are controlled, and the total selectivity of the 2-cyclohexenol and the 2-cyclohexenone is improved.

The invention relates to the field of bee breeding, in particular to a beehive with a prison king device, comprising a box body with an opening, feet are provided around the lower box wall, and a secondary cover, a relay box and Nest box, the successor box is coupled with a vertically placed flat-bottomed conical partition, and the gap in the nest box is matched with a vertically placed rectangular nest plate; there is an opening in the center of the box cover, and a prisoner device passes through the opening , the prison king device includes a main rod, the lower end of the main rod is slidably connected with a cylindrical sleeve, the sleeve is slidably connected with the main rod, a horizontal horizontal plate is placed under the sleeve, and the distance between the sleeve and the horizontal horizontal plate is There are at least 5 cage grids that form a circular matrix around the cylindrical sleeve and are welded between them, and the distance between any two adjacent cage grids is equal. The purpose of this invention is to use the slider link mechanism formed between the cage grid, the sleeve and the horizontal horizontal plate to gradually expand the range of activities of the queen bee in the queen prisoner, so as to solve the problem of the queen bee being emotionally excited and irritating the worker bees surrounding the queen. .

Negative pressure quick-installed indoor air quality control method and device, the bedside of the hospital bed is made into a bedside with the function of a static pressure box, and a grid-type air suction port is opened on the bedside static pressure box, and the static pressure box passes through the air duct and The flexible connector is connected with the fan box. When the fan is working, negative pressure is generated in the static pressure box, and the air above the sick bed is sucked through the tuyere, and the heating and disinfection section of the fan box and the high-voltage electrostatic disinfection output. The structure of the device is that the operation including the fan box (8), the heating and disinfection section (9) and the high-voltage electrostatic disinfection section (10) adopts chain control. When the fan starts, the heating and disinfection section (9) and the high-voltage electrostatic disinfection section (10) simultaneously Start, the heating power is set according to the outlet temperature.

The invention provides crystalline-type waterproof paint for preventing cement leakage, which belongs to the field of waterproofing work in constructional engineering, solves the technical problem of cement leakage prevention in the prior art, and is prepared from the following raw materials in weight ratio: 52.5 ordinary Portland cement, No. 95 granulated blast furnace mineral powder, penetrating agent, expanding agent, silica fume, quartz sand, modified bentonite, modified sodium silicate, complexing agent and crystallized precipitant. The cement-base waterproof paint provided by the invention enables concrete to be waterproof, is inorganic material, has the service life as long as concrete, improves concrete density to improve the concrete strength, and has the characteristics of low possibility of leakage, carbonization resistance, resistance to harmful substance permeation, simplicity in construction operation, low construction cost and the like.

The invention discloses an efficient egg-carried hatching device for procambarus clarkii and an experimental method. A water inlet is formed in a higher position of a side surface of one side of a boxbody, a water outlet is formed in the bottom of a side surface of the other side of the box body, microporous aeration equipment comprises an oxygen inlet pipe and microporous aeration bubble strips,the oxygen inlet pipe is arranged outside the box body, the microporous aeration bubble strips are arranged on the bottom of the interior of the box body, a PVC square pipe is arranged on the bottomof the interior of the box body, first storage racks are arranged on the inner walls of two sides of the PVC square pipe, second storage racks are arranged below the first storage racks on the two sides of the PVC square pipe, and plant fibers are arranged on the first storage racks and the second storage racks. The accommodation capacity of the egg-carried procambarus clarkii in unit area can beincreased by the aid of the multilayer egg-carried hatching device, the activity area of juvenile procambarus clarkii can be enlarged by the aid of limited space, the device is convenient to transportand easy to operate, the breeding habitat of the egg-carried procambarus clarkii and juvenile procambarus clarkii can be improved, and the hatching rate of eggs, the hatching amount in unit area andthe quality of the juvenile procambarus clarkii are improved.