412 results about "Crayfish" patented technology

The invention discloses a cherax quadricarinatus oocyte targeted penetrating peptide VgSP and a living body delivery method thereof, and belongs to the technical field of biology. The invention provides the cherax quadricarinatus oocyte targeted penetrating peptide VgSP on one hand, and provides application of the cherax quadricarinatus oocyte targeted penetrating peptide VgSP on the other hand. The invention provides a polypeptide VgSP capable of being recognized by a cherax quadricarinatus oocyte surface receptor and mediated into an oocyte, and an injection and detection method of the polypeptide in sub-adult and adult female cherax quadricarinatus. The breakthrough lays a technical foundation for establishing a gene editing element delivery method with oocyte targeting, and is expected to be applied to the field of cherax quadricarinatus gene editing.

The invention relates to an intelligent breeding method for crayfish offspring seeds in a winter fallow field, and belongs to the technical field of aquaculture. In order to solve the problems of dissolved oxygen management lag, high ammonia nitrogen accumulation risk and overlarge energy consumption caused by low utilization rate of winter fallow fields and dependence of water quality regulation and control on artificial experience in the prior art, the method comprises the following steps: deploying a water quality dynamic monitoring system based on the Internet of Things to collect data of water temperature, dissolved oxygen, pH value, ammonia nitrogen and nitrite in real time; the power and the water level of the oxygenation equipment are dynamically adjusted after analysis of the edge calculation module; graded regulation and control are achieved by combining a three-level response mechanism, when the dissolved oxygen content is lower than 6 mg / L or the pH value is abnormal, the power of the nanometer oxygenation device is started to 50%, and when the dissolved oxygen content continuously deteriorates, the irrigation system is linked to inject the water body with the temperature being adjusted in advance. According to the method, through intelligent multi-parameter cooperative control and ecological bait design, the resource utilization rate of the winter fallow field is increased, the survival rate of the young crayfish is increased to 85% or above, and the method is suitable for large-scale and green efficient breeding of the young crayfish in a rice-shrimp rotation mode.

The invention discloses a rice field crayfish body surface cleanliness improving method based on accurate aquatic plant management and protection and ecological induction, and relates to the technical field of crossing of aquaculture and ecological agriculture. The lifting method comprises the steps that submerged plants are planted in the rice field in February every year, and the submerged plants are trimmed regularly in the cultivation process so that the top ends of the submerged plants can be kept under the water surface; shrimp seeds are put into the rice field, and feed is fed regularly; in the subsequent breeding process, during regular feeding of feed, feeding of crushed pomacea canaliculata is carried out; and after the young crayfishes grow up and shell, catching the crayfishes to obtain the crayfishes with high body surface cleanliness. According to the method, the growth state of the aquatic plants is precisely controlled to construct a natural clean field domain, the functional bait is fed to increase nutrition, meanwhile, friction cleaning is carried out through the feeding behavior, precise fishing is carried out based on the molting period, and therefore the body surface cleanliness of the crayfishes bred in the rice field is improved.

The invention discloses a crayfish real-time counting method and system based on a dynamic visual sensor, and the method comprises the steps: sensor installation and adjustment, image collection, preprocessing, individual recognition, tracking and counting, and the image is preprocessed through adaptive threshold image segmentation and non-local mean denoising; identifying individuals by using a multi-feature fusion convolutional neural network and attitude compensation; kalman filtering is combined with a Hungary algorithm for tracking and coping with shielding, the system comprises a plurality of cooperation units, accurate counting is performed by applying partition and calibration models aiming at uneven distribution of crayfishes, and the system has the characteristics of parameter adaptive adjustment, ROI image acquisition optimization, fault detection and self-recovery, expandable counting model framework and the like. Counting accuracy and system stability are remarkably improved, and intelligent management of crayfish breeding is assisted.

The invention discloses an X80 pipeline steel defect quantitative characterization method based on a BP neural network optimized by an improved crayfish optimization algorithm. The method comprises the following steps: S1, acquiring experiment and simulation data; s2, extracting a time-frequency characteristic quantity, and constructing a time-domain characteristic vector T and a frequency-domain characteristic vector F; s3, performing feature dimension reduction based on Spearman correlation analysis; s4, inputting the feature vector I after dimension reduction into an improved crayfish optimization algorithm to optimize a BP neural network (CHCOA-BP) algorithm; and S5, outputting a defect length value and a defect depth value of the X80 pipeline steel pipeline volume defect. According to the CHCOA-BP algorithm constructed by the invention, three strategies of mirror reflection learning, a Tianwan algorithm extended search stage and a vertical crossover operation are fused, a mapping relation between a pulse eddy current response-based time-frequency feature fusion feature quantity and a volume defect size is obtained through model training, and quantitative characterization of pipeline defects is realized. The method has the characteristic of high prediction accuracy, effectively solves the problems that the traditional quantitative algorithm is low in later search efficiency and is easy to fall into local optimum, and effectively improves the quantitative detection and characterization capability of the volume defect size.

The utility model discloses continuous operation crayfish cooking equipment, which relates to the field of cooking equipment and comprises a conveying frame, a steel mesh conveying belt is mounted on the conveying frame, and a steam hood is fixed at the top of the conveying frame. One side, close to the discharging end of the steel mesh conveying belt, of the conveying frame is provided with a striking strip below the steel mesh conveying belt through an elastic connecting piece; according to the continuous-operation crayfish cooking equipment, by arranging structures such as beating strips, springs and discs, in the continuous crayfish cooking process, the bottom face of the steel mesh conveying belt can be beaten, crayfishes clamped on the steel mesh conveying belt can be separated from the steel mesh conveying belt through inertia, and the crayfish cooking efficiency is improved. The crayfish is prevented from being continuously hung on the steel mesh conveying belt and even falling into the inner side of an exhaust structure below the steel mesh conveying belt, equipment damage is avoided, and the probability of repeated steaming and waste of the crayfish is reduced.

The invention discloses a factory-like breeding facility and method for crayfish fry, and belongs to the technical field of crayfish breeding. The facility comprises a breeding bed frame and a spray seedling cultivation pond, a plurality of breeding cylinders which operate independently are placed on the breeding bed frame, meshes are arranged in the breeding cylinders in the horizontal direction, the breeding cylinders are divided into upper and lower independent spaces including an incubation area and an egg collection area by the meshes, a plurality of groups of shrimp nests placed on the meshes are arranged in the incubation area, and a plurality of shrimp nest units are arranged in each group of shrimp nests; a seedling outlet pipe is arranged at the bottom of the breeding cylinder; the method comprises the following steps: selecting and putting egg-carrying parent shrimps, artificially incubating fry, managing and controlling the incubation process, and collecting the fry. Through precise regulation and control of multiple parameters such as water temperature, dissolved oxygen, pH and the like, parent health management and automatic spray fry collection system integration, optimization of a crayfish industrialized breeding technology is achieved, the survival rate of the parent, the synchronous incubation rate and the hatching rate of fertilized eggs are improved, the specification and quality of spray fry are guaranteed, and therefore the yield and quality of crayfish industrialized breeding are improved.

The pretreatment device comprises a lifting frame, electric push rods, supporting plates and a water storage bin, a water outlet is formed in one end of the lower portion of the water storage bin, the supporting plates are arranged on the two sides of the outer wall of the water storage bin respectively, the electric push rods are fixed to the upper ends of the supporting plates, and supporting plates are fixed to the upper ends of the electric push rods; a filter screen cylinder is arranged between the supporting plates, the upper ends of the two sides of the filter screen cylinder are fixedly connected with the supporting plates correspondingly, a protective cover is arranged on the side portions of the supporting plates, a motor is arranged in the protective cover, the lower end of the protective cover is connected with a mounting base through a bearing, and the output end of the motor is fixedly connected with the driving end of the mounting base. An insertion block is arranged at the lower part of the mounting seat. The lobster cleaning device is good in cleaning effect, the rotating rod is convenient to replace and maintain, and lobsters are easy to take out.

The invention provides a crayfish astaxanthin proliposome and a preparation method thereof, and belongs to the technical field of preparation of astaxanthin nano-liposomes. The preparation method of the astaxanthin proliposome provided by the invention comprises the following steps: (1) taking crayfish shells, fully freeze-drying the crayfish shells, grinding and sieving the crayfish shells to obtain crayfish shell powder; (2) taking the shrimp shell powder, adding absolute ethyl alcohol, extracting astaxanthin, and collecting an astaxanthin solution; (3) adding phospholipid into the astaxanthin solution to obtain an astaxanthin-phospholipid solution; and (4) adding sugar alcohol particles into the astaxanthin-phospholipid solution, and carrying out rotary evaporation to remove the absolute ethyl alcohol so as to obtain the granular astaxanthin precursor liposome. By adopting the method disclosed by the invention, the extraction of the crayfish shell astaxanthin and the linkage preparation of the astaxanthin precursor liposome can be realized, and the stable astaxanthin liposome can be quickly and efficiently prepared.

The utility model discloses a multi-station manual shrimp tail peeling workbench, which belongs to the technical field of deep processing of crayfish and comprises a support provided with an operating table. The discharging hopper is arranged and used in cooperation with the waste conveying structure, after shelling is completed, shrimp tail shells can be directly put onto the waste conveying structure through the discharging hopper, the shrimp tail shells are conveyed through a second conveying belt, a collecting box does not need to be manually and regularly cleaned, time is saved, the conveying frame is placed on a transverse rod at the lower end of the support, and the conveying frame is convenient to use. According to the waste conveying device, the waste conveying structure is matched with a connecting angle plate, a first connecting screw and a second connecting screw for use, the stability during use is guaranteed, and the conveying frame is detachably arranged, so that the waste conveying structure is conveniently detached for operation; the special-shaped blocking plate can effectively prevent shrimp tail shells from falling onto the first conveying belt, the purity of shrimp meat on the first conveying belt is guaranteed, follow-up manual cleaning is not needed, and the processing cost is saved.

The invention provides a crayfish phenotype detection method and system based on key point detection and image segmentation, and the method comprises the steps: obtaining a crayfish image, and carrying out the marking processing of the crayfish image, and forming a crayfish image data set; the crayfish image data set is preprocessed; constructing a crayfish form recognition model, and training the crayfish form recognition model based on the preprocessed crayfish image data set; and identifying the crayfish image through the trained crayfish form identification model, and outputting phenotype data of the crayfish. According to the method, the phenotype data of the crayfish can be quickly and accurately analyzed.

The utility model discloses a crayfish tail sorting device, which belongs to the technical field of crayfish tail sorting, and comprises a fixed support, a material box type weighing and sorting assembly is arranged above the fixed support, a plurality of containing material boxes are arranged on the material box type weighing and sorting assembly, and a mounting support is fixedly arranged on the fixed support. The mounting bracket is composed of a first U-shaped bracket, two connecting supporting plates and a second U-shaped bracket, the two connecting supporting plates are fixedly mounted at the inner end of the first U-shaped bracket, the second U-shaped bracket is fixedly mounted at the inner end of the connecting supporting plate on the upper side, and the mounting bracket, the driving assembly and the cleaning assembly are arranged, so that the containing box can be cleaned; according to the crayfish tail weighing device, the crayfish tails can be placed in the containing box, so that sundries falling into the containing box can be cleaned out, the interior of the containing box can be kept in a clean state, finally, the accuracy of crayfish tail weighing can be improved, and then the crayfish tails can be accurately sorted.

The invention discloses an aquaculture feeding control method and system based on path optimization. The method comprises the steps that a feeding path dot matrix is constructed based on a GPS or a Beidou navigation system, and the navigation track of an unmanned ship is planned. According to the method, a path planning algorithm, a fixed-point quantitative feeding strategy and multi-mode control logic are fused, efficient and automatic operation of the unmanned ship in a water surface aquaculture scene is achieved, a feeding path dot matrix is constructed based on GPS or Beidou navigation, and track deviation is dynamically corrected in combination with water body characteristics; an automatic feeding task is set according to the growth cycle and the partition breeding density; a remote APP scheduling and local system cooperative control mechanism is adopted, and operation continuity and safety are guaranteed; automatic homeward voyage and charging are supported after the task is completed; operation data can be uploaded to a cloud end in real time, and a breeding log and feeding traceability recording system is constructed. The method is suitable for various aquaculture environments of crayfishes, fishes, crabs and the like, has the remarkable advantages of being accurate in operation, intelligent in control, transparent in management and the like, and can be widely popularized.

The invention discloses a freshwater crayfish fry factory-like breeding system and a temperature control and breeding method, and belongs to the technical field of aquaculture. Current freshwater crayfish fry breeding has the problems of difficult anti-season supply, poor water temperature regulation and control, insufficient water resource utilization and the like. According to the technical scheme, the breeding system is characterized in that the breeding system comprising a seed shrimp intensified breeding pond, a mating and egg-carrying pond, a hatching pond, a shrimp seed breeding pond, a tail water treatment pond and the like is constructed, a temperature adjusting device is arranged to control the water temperature, and a preheating water tank, a standby water tank and the like are arranged to achieve cyclic utilization of water and waste heat recovery. The invention further provides a temperature control method and a breeding method. The method is mainly used for realizing factory-like breeding of freshwater crayfish seeds, solving the problems of breeding and supply of out-of-season crayfish seeds, and improving the breeding efficiency and quality.

The invention relates to the technical field of lobster breeding, and particularly discloses an automatic crayfish catching device suitable for a rice field, the automatic crayfish catching device comprises a base, a frame is fixedly mounted at the top of the base, a microcontroller is arranged at the upper end of one side of the frame, and a control module and a timing module are arranged in the microcontroller. A linkage mechanism of a fishing mechanism, a transverse moving mechanism and a storage mechanism is adopted, the fishing, transporting and storing integrated process is constructed, after a fishing box is fully loaded, a first motor drives a gear rack to move to the position above a storage frame, a third motor is matched with a synchronous wheel to achieve automatic overturning discharging, and a fourth motor drives a rotating disc to alternate the storage frame; the crayfishes do not need to be manually contacted in the whole process, ventilation is guaranteed and escape is prevented through the design of the top tray and the protective net, automatic discharging and storage switching are combined, the labor intensity of workers in the muddy environment is effectively reduced, and the human input and the operation cost are reduced.

The utility model relates to a crayfish hole entering behavior measuring device which comprises a throwing pool, an artificial cave, a filling area, an observation pool and a recording system, the behavior of crayfish near the artificial cave is observed by changing the environment variable of the artificial cave, and the living habits and preferences of the crayfish are obtained. The device has the advantages that the structure is simple, variables can be adjusted according to actual requirements, meanwhile, a plurality of test caves can be formed in one device at the same time, enough test samples are provided, and therefore the reliability of test results is guaranteed.

The invention relates to the technical field of lobster product processing, and discloses a lobster processing and cooking device which comprises a cooking bin, an independent temperature control part, a matching assembly, a dispersed weighing assembly and a regulation and control assembly. A steam heating piece is arranged at the bottom of the cooking bin, and the independent temperature control piece is arranged above the steam heating piece so as to independently heat and convey the crayfishes of different weight specifications. The invention has the following advantages and effects: the crayfish can be divided into three different specifications by weight, three conveyor belts with different heating temperatures are arranged in the cooking bin, the crayfish with different weight specifications can be respectively fed into the conveyor belts with corresponding temperatures, and the aim of uniformly heating the crayfish with different sizes is fulfilled by controlling the conveying speed; and after the crayfishes are discharged, the crayfishes can be accurately conveyed to the corresponding conveying belts through the dispersing mechanism according to the weight, and the processing efficiency is guaranteed in an automatic mode.

The utility model provides crayfish processing equipment, and relates to the technical field of food processing equipment. Comprising a water pool, a bottom plate is installed in the water pool, a ventilation opening is formed in the bottom plate, a baffle is slidably connected to the interior of the bottom plate, a plug plate is slidably connected to the interior of the baffle, an inclined plate is connected to the outer surface of the plug plate, a blocking plate is slidably connected to the interior of the water pool, and a scraping plate is slidably connected to the interior of the blocking plate. A transmission mechanism is arranged in the water pool, and a partition plate is connected into the water pool. Through the baffle and the scraping plate, the baffle can move, so that the upper surface of the baffle forms a plane, the scraping plate can move, and when the scraping plate moves, garbage on the bottom plate can be driven to move, so that impurities on the bottom plate are cleaned away, the impurities cannot stay on the bottom plate body, and cleaning of the impurities is completed; the problem that manual cleaning consumes labor is solved.

The application discloses a crayfish breeding system based on Internet of Things and relates to the crayfish breeding field. The application scheme performs correlation analysis on the environmental parameters, the breeding parameters, the ecological parameters and the dissolved oxygen content data in the oxygenation state and the non-oxygenation state of the test points in the breeding area, screens the dissolved oxygen content influencing factors, obtains the first neural network model and the second neural network model, obtains the first relationship between the dissolved oxygen content influencing parameters in the oxygenation state and the dissolved oxygen content and the second relationship between the dissolved oxygen content influencing factors in the non-oxygenation state and the dissolved oxygen content, sets the dissolved oxygen content standard value at the test points, formulates the oxygenation control strategy according to the obtained first relationship and second relationship, generates the control instruction for adjusting the dissolved oxygen content in the breeding area according to the obtained oxygenation control strategy, and the oxygenation instruction execution module adjusts the dissolved oxygen content in the breeding area in response to the control instruction generated by the oxygenation control strategy generation module.

The present invention discloses a feed additive for secondary spawning of red claw crayfish, as well as its preparation method and application. The present invention comprises the following components: 29.5-30.5% bait powder, 24.5-25.5% methyl farnesate, 9.5-10.5% schizochytrium powder, 9.5-10.5% Porphyridium powder, 7-8% 5-hydroxytryptamine creatinine sulfate, 9.5-10.5% linseed oil, and 7-8% alanine hydroxamic acid; the bait powder is a mixture of lugworm powder and squid viscera powder in a weight ratio of 4-6:5. The present invention also provides a preparation method for the above-mentioned feed additive. The feed additive of the present invention is added to conventional shrimp feed to prepare a compound shrimp feed for feeding the first batch of spawning shrimp of red claw crayfish. The present invention can significantly promote the gonadal development of spawning shrimp of red claw crayfish, rapidly mature their ovaries in a short period of time, improve the spawning rate of spawning shrimp obtained therefrom, and thereby increase the supply of shrimp fry.

The invention discloses a method for combining straw returning to field, pond fish culture and rice, fish and soft-shelled turtle / shrimp comprehensive planting and breeding, and belongs to the technical field of rice, soft-shelled turtle, fish and shrimp comprehensive planting and breeding. After rice in the rice field is harvested, straw is smashed and returned to the field, a hidden survival place is provided for crayfish seedlings, rotten straw and derived zooplankter provide bait for crayfish and fish, and the straw decomposition rate is increased by eating; after water in the rice field module becomes serious along with straw rotting, the water is discharged into the culture pond through tail water treatment engineering treatment, and the water fertility of the pond is increased; meanwhile, after eutrophication of the water body in the culture pond, the water body is discharged into the rice field after being treated by a tail water treatment project and flows into the culture pond again after being further purified by the rice field. According to the constructed mode, the straw is converted into the organic fertilizer through the crayfish and the fish, and the paddy field is adopted for purifying pond culture tail water. No breeding wastewater is discharged in the mode. The investment of aquatic product baits and rice field fertilizers is reduced, and the income and quality of rice and fishes are increased.

1. Name of the product in this design: Packaging Box (Snack Crayfish). 2. Purpose of this design: For packaging products. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention belongs to the technical field of lobster breeding, and particularly relates to a breeding box for indoor breeding of crayfishes, which comprises a containing part, a water injection mechanism, a water drainage mechanism, a filtering mechanism and a residue discharge mechanism, the containing part comprises middle section plates, end face plates and sealing gaskets, when the two middle section plates are assembled, sealing of the connecting position is achieved through the sealing gaskets, and when the end face plates and the middle section plates are assembled, sealing of the connecting position is achieved through the sealing gaskets; the water injection mechanism is used for injecting water into the middle-section plate; the drainage mechanism comprises a mounting box and a drainage grate, the drainage grate is arranged on the side wall of the middle section plate, and the mounting box is fixedly mounted on the outer wall of the middle section plate and communicates with an inner cavity of the middle section plate through the drainage grate; the filtering mechanism comprises a control roller and a filtering cylinder, and the filtering cylinder sleeves the outer wall of the control roller; the structure is matched to adapt to different indoor breeding spaces, and scraped dirt is conveyed, so that the filtering efficiency of the filter cartridge is kept, the breeding environment is kept, and the survival rate is increased.

The utility model discloses a crayfish larva transportation device, relates to the technical field of crayfish larva transportation, solves the problems that an existing device is low in practicability and low in crayfish larva survival rate, and adopts the following scheme that an oxygenation box is assembled on the top face of a transportation vehicle, and a water tank is fixedly installed on the left side of the oxygenation box. Through the arrangement of the oxygenation box, the oxygenation pipes and the shrimp seed boxes, the four shrimp seed boxes are arranged on the oxygenation box, shrimp seeds of different specifications and sizes can be conveyed in a classified mode, then oxygen is provided for the shrimp seeds through the oxygenation pipes evenly distributed at the bottoms of the shrimp seed boxes, the situation that the shrimp seeds die due to oxygen dead corners in the shrimp seed boxes is prevented, practicability is high, and practicability is high. Meanwhile, through the arrangement of an output pipe, a circulating pipe and a filter box, the circulating pipe sucks water and impurities in the shrimp seed box into the filter box to be filtered, then clean water in the water tank is input into the shrimp seed box through the output pipe, it is guaranteed that the water in the shrimp seed box is clean, and the survival rate of shrimp seeds is increased.

The ground cage comprises a main cage body and an auxiliary cage body, a channel is formed in the main cage body in the length direction, a plurality of inlets are formed in the side face, corresponding to the main cage body, of the channel, a connecting opening is formed in the main cage body, a deformable supporting frame is arranged at the connecting opening, a screening cavity is formed in the auxiliary cage body, and screening holes are distributed in the surface of the auxiliary cage body. A mounting opening is formed in the auxiliary cage body, a sleeving frame is arranged at the mounting opening, the size of the sleeving frame is smaller than that of the supporting frame, and the sleeving frame is used for allowing the supporting frame to penetrate through and being connected with the main cage body in a sleeving mode so that the screening cavity can be communicated with the channel, and screening holes of different sizes can be selected for use according to needs through arrangement of the auxiliary cage body; the screening effect on the crayfishes of different specifications is achieved, meanwhile, the crayfishes of small specifications can directly escape through the screening holes, death and injury caused by accumulation of the crayfishes of small specifications in the channel or the screening cavity are avoided, and the overall economic benefit is guaranteed.

The invention provides a Chinese herbal medicine fermented feed for crayfish and application of the Chinese herbal medicine fermented feed in prevention and control of five-month blast, and belongs to the technical field of aquaculture feeds. A preparation method of the Chinese herbal medicine fermented feed for crayfish comprises the following steps: taking a mixture of artemisia capillaris, potentilla discolor, radix bupleuri, scutellaria baicalensis, golden cypress, astragalus membranaceus, salvia miltiorrhiza, isatis root and liquorice; and inoculating a compound microbial agent consisting of lactobacillus plantarum, bacillus subtilis, bacillus velezensis and saccharomyces cerevisiae for anaerobic fermentation, mixing extract obtained by fermentation with the basal feed, and performing anaerobic fermentation again to obtain the feed. The feed provided by the invention can effectively improve the anti-stress ability and immunity of the crayfish, regulate the hepatopancreas function and remarkably reduce the incidence rate of five-month blast of the crayfish.

The application belongs to the technical field of lobster processing devices, and particularly relates to a crayfish shelling device, which comprises a bottom box, symmetrical side plates fixedly connected to the two sides of the bottom box, and a mounting table fixed in the middle of the two side plates; a fixing assembly for fixing the position of crayfish, wherein the fixing assembly comprises a vertical rod for inserting crayfish; a guide assembly arranged on the two sides of the vertical rod to guide an operator to insert the head shell of crayfish on the vertical rod from top to bottom; a clamping assembly arranged on one side of the mounting table and used for clamping the tail of crayfish; a driving assembly for driving the clamping assembly to rotate so as to separate the tail from the head shell; and an adjusting assembly for controlling the vertical rod to protrude out of or be retracted into a vertical groove. The application can quickly and completely separate the tail from the head shell, avoid waste of shrimp meat, and automatically classify the tail and the head shell, thereby improving the separation efficiency.

The application belongs to the technical field of cleaning devices, in particular to a crayfish cleaning device, which comprises a cleaning barrel, an ultrasonic cleaning device arranged at the bottom of the cleaning barrel, a placing barrel fixedly installed at the top of the cleaning barrel, a bottom plate slidingly installed in the cleaning barrel, a partition plate fixedly installed at the top end of the bottom plate, a fence rotatably installed at the top end of the bottom plate, a water draining plate fixedly installed at the bottom end of the bottom plate, water leakage openings formed in the bottom plate and the water draining plate, a hollow water draining plate, a first mesh plate and a second mesh plate slidingly installed in the water draining plate, water draining openings formed in the first mesh plate and the second mesh plate, the first mesh plate located above the second mesh plate, the water draining openings formed in the first mesh plate and the second mesh plate arranged in a staggered manner, a water pipe fixedly connected to the fence, a spray head arranged at the bottom end of the water pipe, and a drain pipe arranged at the bottom end of the cleaning barrel. The cleaning device can ensure the cleanliness of crayfish by cleaning first and then spraying and flushing.

The utility model provides a crayfish head removing device, which belongs to the technical field of food processing, and comprises an operation table, a fixing frame is fixedly connected above the operation table, a support is fixedly connected below the operation table, an electric telescopic rod is arranged above the fixing frame, and the electric telescopic rod is fixedly connected with the operation table. According to the crayfish head removing device, an anti-skid pad is arranged on the operation table, displacement of crayfish in the head removing process can be well reduced, head removing is more accurate, the water spraying mechanism is arranged on the fixing frame, after the heads of the crayfish are removed, a cutter can be washed, and the crayfish head removing efficiency is improved. The problems that the digestive system, pancreas and other organs of the head of the crayfish are likely to adhere to the cutter, the follow-up crayfish with the head to be removed can be stained, and the cutter can be corroded after years are solved.

The utility model discloses a water quality detection device for crayfish culture, relates to the technical field of water quality detection, solves the problems that the existing device is low in practicability and inconvenient to use, and adopts the following scheme that a carrying plate is assembled on the bottom surfaces of a water pump and a detector, and a through hole is formed in the top surface of a floating bottom plate; according to the water quality detection device for crayfish culture, through the arrangement of the water pumping pipe, the heavy block and the drainage pipe, the water pumping pipe is put into water, the heavy block drives the water pumping pipe to descend, the depth of the water pumping pipe penetrating into the water can be observed through scale marks, and the water quality detection device is simple and convenient, can detect water areas with different depths, and is high in practicability; meanwhile, through the arrangement of the three-way pipe, the input pipes and the three-way valve, the drainage pipe is communicated with the three-way pipe, and the three-way valve can adjust the drainage pipe to be communicated with the three input pipes respectively, so that water in different water areas can be drained into different collecting barrels respectively, the use is simple and convenient, and the working efficiency is improved.