345 results about "Fishing net" patented technology

The invention relates to the field of fishing net line detection, and discloses a fishing net line tensile strength detection device which comprises a detection table, a switching plate is arranged in the middle of the detection table through a switching structure, pulling detection structures are arranged on the two sides of the detection table, a plurality of groups of pulling grooves are formed in the switching plate, and pulling seats are slidably arranged in the pulling grooves. A fixing disc is arranged on the pulling seat through a mounting structure, a rotating disc is rotationally arranged on the fixing disc, during detection, one end of a fishing net line is clamped through a clamping structure, then the fishing net line is automatically wound to a rubber sleeve of a fixing column through a winding structure, the fishing net line is clamped more firmly, and the problem that the fishing net line falls off during detection is avoided; meanwhile, manual winding is replaced by automatic winding, so that the operation is more labor-saving and convenient, and the working efficiency is higher; and a moving structure is arranged, so that the moving block can be driven to gradually move towards the direction of the fixed column in the winding process, and the fishing net line can be smoothly wound on the fixed column.

This utility model relates to the field of floating wind power, and more particularly to a floating offshore wind power integration system based on fishery-wind complementarity. It includes a floating platform, a wind turbine system, an aquaculture system, and a suction caisson. The aquaculture system includes aquaculture nets. The wind turbine system is located above the floating platform, and the aquaculture nets are located below the floating platform. The suction caisson is connected to the floating platform. Wind power is provided through the wind turbine system, and fishery aquaculture is carried out through the aquaculture system, achieving fishery-wind complementarity integration. Furthermore, the design of the suction caisson ensures the stable arrangement of the entire system. The overall structure utilizes longitudinal sea space, has the characteristics of wide applicability to various sea areas, strong stability, and high energy utilization rate, and is expected to be widely used in the field of floating offshore wind power.

The utility model provides a deep sea net cage grouper delivery promoting device which comprises a machine frame, a floating block and a net cage, a moving mechanism is arranged at the bottom of the machine frame, the bottom of the machine frame is connected with a supporting plate, wire winding mechanisms are arranged at the two ends of the supporting plate respectively, the wire winding mechanisms are connected with a fishing net bag through pull ropes, a discharge pipe is arranged on the side face of the bottom of the fishing net bag, and a valve is arranged on the discharge pipe. A fixed supporting frame is arranged on the top surface of the floating block, a guide groove is formed in the top of the fixed supporting frame, a net cover is arranged on the top of the guide groove, a first pressing plate is connected to the inner wall of the fixed supporting frame through a first electric push rod, a horizontal plate is connected to the top of the supporting frame and slidably connected with a movable supporting frame, and a second pressing plate is connected to the inner wall of the movable supporting frame through a second electric push rod. According to the grouper fishing device, the fishing net bag is driven by the line winding mechanism to fish groupers, the working efficiency is improved, the two ends of the groupers are fixed through the first pressing plate and the second pressing plate, the groupers are prevented from jumping in the process of injecting the delivery promoting medicine, the amount of the injected medicine is guaranteed, and the delivery promoting effect is improved.

According to the technical scheme, the fishing net with the adjustable mesh comprises a frame body, sliding grooves are formed in the periphery of the frame body in a penetrating mode, mesh wires are arranged in the sliding grooves in a sliding mode, and two clamping plates rotating along the X axis and the Y axis respectively are rotationally arranged on the two corners of the frame body. Two fixing plates abutting against one sides of the two clamping plates respectively are fixed to other corners of the frame body, telescopic rods are arranged on the fixing plates, pressure springs are wound around the telescopic rods, and limiting plates abutting against the other sides of the clamping plates are arranged at the ends of the telescopic rods. According to the network cable fixing device, the size of a network cable is changed by changing the distance between every two network cables through sliding of the network cables in the sliding grooves, meanwhile, the positioned network cables are gradually pressed and fixed through rotation of the clamping plates, and after all the network cables are pressed and fixed, the telescopic rods drive the limiting plates to move so that one sides of the clamping plates can move to abut against the fixing plates; after the limiting plate is loosened, the limiting plate is driven by resilience force of the pressure spring to abut against the other side of the clamping plate.

The invention discloses a combined type netting twine separating machine for processing, and relates to the technical field of separating machines, the combined type netting twine separating machine comprises a rack main body, a yarn guide roller assembly, a separating mechanism and a tension adjusting assembly; the yarn guide roller assemblies are sequentially installed at the feeding end of the machine frame body in the yarn conveying direction, the yarn separating mechanism is connected with the machine frame body through a lifting support, and the tension adjusting assembly is fixed to the discharging end of the machine frame body through a driving unit installation base. The feeding path of the fishing net mother yarn can be precisely restrained through a multi-section type continuous guide structure of the yarn guide roller assembly, and step-by-step precise separation from the mother yarn to the monofilament is achieved in cooperation with the one-to-one correspondence design of the yarn separation needle row and the needle pitch comb teeth of the yarn separation comb tooth plate; and meanwhile, the static electricity eliminating strip can eliminate yarn friction static electricity, monofilament adsorption adhesion is avoided, the angle and position of the filament separating comb plate can be flexibly adjusted through cooperation of the arc-shaped supporting base and the guide sliding rail, the problems of filament doubling and filament leakage are thoroughly solved, and the uniformity and consistency of monofilaments obtained after filament separation are guaranteed.

A material transportation trolley for a fishing raft comprises a frame capable of carrying goods; the four Mecanum wheels are respectively arranged at four corners of the frame and are used for driving the frame to run on the transverse plate and the longitudinal plate; each walking driving motor is used for driving one Mecanum wheel to roll; the four anti-deviation driving motors are respectively arranged at four corners of the frame; one driving rod is mounted on a rotating shaft of each anti-deviation driving motor, and under the driving of the anti-deviation driving motors, the four driving rods can swing downwards to the left side and the right side of a floating pipe below the frame or be lifted to the position above a fishing raft; one edge protecting wheel is mounted at the tail end of each driving rod in a left-right swinging manner and clings to the outer side of the floating pipe to roll; one end of the tension and pressure sensor is connected with the driving rod, and the other end of the tension and pressure sensor generates tension and pressure under swinging linkage of the edge protecting wheel; and the controller can control all the walking driving motors and all the anti-deviation driving motors to act according to the received signals of all the tension and pressure sensors. The invention provides a device suitable for walking operation on a fishing raft.

1. The name of the design product: fishing net cage (1). 2. The use of the design product: fishing net cage for fishing. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The application discloses a fishing device of a complete loading vehicle for an aquaculture pond, and belongs to the technical field of aquaculture equipment, which comprises a net spreading mechanism and a traveling mechanism. The traveling mechanism can move along the edge path of the pond. The net spreading mechanism is composed of a fixed-point component, a transfer component, a fishing net, a net stretching component and a winding component. The fishing net is released or retracted through the rotation of the winding component, and the movement of the traveling mechanism enables the fishing net to be unfolded along the edge of the pond to form a surrounding circle, so that the cultivation of the whole pond range is realized at one time. The lower moving seat in the net stretching component can be lifted along the vertical rail, so that the lower cable of the fishing net is lifted when the net is collected, and the upper cable is cooperated to realize the gathering, and finally the cultivation is gathered to the edge of the pond for easy collection. The device is operated through mechanization and automation, which significantly reduces the labor intensity, improves the fishing efficiency, and provides effective technical support for modern aquaculture.

The utility model discloses a ball showing and slow falling structure, which relates to the technical field of ball showing and comprises an outer cover, a round wood plate is arranged at the top of the outer cover, a main body rack is arranged at the top of the round wood plate, a motor is arranged on one side of the main body rack, a main shaft is arranged at the output end of the motor, a large coil is arranged at the tail end of the main shaft, and a long wire is arranged on the outer wall of the large coil. The long line is fixedly connected with the directional hammer, the short line is arranged at the bottom of the directional hammer, and the fishing net is arranged at the tail end of the short line. A ball is put into the outer cover from the ball inlet in the round wood plate, the speed of the ball during falling can be controlled by the motor, it is guaranteed that an observer can observe the movement track of the ball, the ball can pass through the fishing net after falling, the falling direction of the ball is controlled, the ball is protected, and the service life of the ball is prolonged. The technical problems that the number change and the speed change of balls during falling cannot be visually observed, and when the falling speed of the balls is too high, the balls are prone to splashing and even being damaged are solved.

The utility model discloses and provides an aquaculture pond which comprises a culture pond body, a plurality of sets of shells are fixedly installed on the top section of the culture pond body, the shells are all fixedly installed on the outer surface of the top end of the culture pond body, limiting sliding grooves are formed in the outer surfaces of the shells, and movable mechanisms are arranged on the inner walls of the shells. A movable mechanism is arranged on the base, one end of the movable mechanism is connected with a connecting block, the bottom end of the connecting block is connected with a sliding plate, the bottom end of the sliding plate is connected with a fixing block, one side of the fixing block is connected with a connecting ring, and the connecting ring is used for being connected with a fishing net. During harvesting, the fishing net can be stably and rapidly lifted up through precise driving of the air cylinder, and manpower and time cost are greatly saved.

This invention discloses an underwater salvage mechanical claw device for fire rescue, comprising an operating lever and an operating frame. A mechanical claw mechanism is connected to the bottom of the operating lever, and a clamping mechanism is connected to the mechanical claw mechanism. The mechanical claw mechanism includes a fixed base and multiple inclined claw plate mounting bases evenly fixed along its outer side. Two single claw plates are symmetrically rotatably connected to the outer end of each claw plate mounting base. A connecting shaft is fixed to the top of the two single claw plates and connected to the clamping mechanism. A cutting blade is provided between the two single claw plates. The top of the cutting blade is rotatably mounted in a rotating groove at the bottom of the claw plate mounting base via a cutting shaft. Both ends of the cutting shaft extend into the claw plate mounting base and are connected to a drive assembly. This device controls the rotation of the cutting blade through the drive assembly, actively cutting obstacles such as fishing nets and aquatic plants entangled on the mechanical claw to avoid jamming. Simultaneously, the inclined double claw plate structure improves the stability and reliability of the gripping action, making it suitable for complex underwater rescue environments.

The application relates to the technical field of plastic recycling, and discloses a medical waste plastic recycling and regenerating treatment equipment, which comprises a cleaning tank, a discharge port arranged at one end of the cleaning tank, and a rotating roller rotatably arranged in the cleaning tank. The size of the filter hole of the fishing net is changed by adjusting the position of the adjusting frame, the adjusting plate and the clamping rod during the rotation of the rotating roller, so that the fishing probability of the fishing net for small fragments is improved, the percentage of small fragments in the cleaning tank is reduced, and the fishing net is drained in time after fishing is completed, so that the cleaning liquid in the fishing net cannot enter the next cleaning tank along with the plastic fragments, resource waste is reduced, the recycling rate is improved, the dumping rate of the plastic fragments in the fishing net is ensured, the transfer efficiency is not affected, the dumping smoothness and completeness are ensured, the whole treatment process can be orderly carried out according to the predetermined time node, and the normal progress of the recycling treatment period is ensured.

The application discloses a natural gas shaping device for fishing net thread and belongs to the technical field of fishing net thread production, which comprises a combustion chamber, feed inlets and discharge outlets are formed on the two sides of the combustion chamber, and input rollers and output rollers are respectively installed in the feed inlets and the discharge outlets.

The utility model discloses a fishing net dyeing device for fishing net processing, and belongs to the technical field of fishing net production, the fishing net dyeing device for fishing net processing comprises a dyeing barrel, the bottom of a support frame is fixedly connected with a driving mechanism, and the bottom of the dyeing barrel is slidably connected with an adjusting mechanism; a stirring shaft penetrating through the dyeing barrel and the round barrel is rotationally connected to the center of the interior of the dyeing barrel, a telescopic mechanism is slidably connected to the exterior of the stirring shaft, and a drainage mechanism is fixedly connected to the bottom of the round barrel. According to the fishing net dyeing machine, the stirring shaft can easily rotate through the driving mechanism, a fishing net in the dyeing barrel is fully stirred, and the dyeing efficiency is improved; meanwhile, a flexible spin-drying function is achieved; a user can switch to a spin-drying mode only through simple operation, centrifugal force is generated through rotation of the dyeing barrel, and dye liquor on the fishing net is rapidly spin-dried; in the process, the stirring part on the stirring shaft can be manually contracted, interference to the spin-drying process is avoided, and the spin-drying effect is ensured.

The utility model belongs to the technical field of fishing net tailoring, in particular to a positioning, tailoring and shaping device for fishing net production, which comprises a tailoring worktable, a conveying frame is fixedly mounted on one side above the tailoring worktable, a conveying belt is fixed on the inner side of the conveying frame, and a plurality of fixing plates are fixedly connected to the outer surface of the conveying belt. A distance adjusting table is installed above the fixing plate in a sliding mode, a distance adjusting sliding groove is formed in the connecting position of the distance adjusting table and the fixing plate, and scale marks are arranged on the two sides of the upper surface of the fixing plate; positioning seats are fixedly installed on the two sides of the distance adjusting table, a positioning pressing plate is fixed to the output end of the telescopic push rod, and a cutting tool is arranged above the conveying belt. The distance adjusting table can be moved through the distance adjusting sliding groove, so that the relative position of the distance adjusting table can be adjusted according to the length, needing to be cut, of a fishing net, the distance adjusting table is fixed through bolts after adjustment, and the moving position of the distance adjusting table can be referred through scale marks.

The invention relates to the technical field of fishing net weaving, and provides a fishing net weaving device which comprises a main body, a rack is arranged on the main body, a rotating disc is fixed to the rack, a wire frame driven by a motor is rotationally connected to the rotating disc and comprises a block-up block fixed to the rotating disc, a C-shaped frame is fixed to the block-up block, and the C-shaped frame is fixed to the rotating disc. A lower abutting plate is hinged to the lower end of the inner side of the C-shaped frame in the vertical direction, and an upper abutting plate for limiting the braided wire is arranged above the lower abutting plate. It can be understood that the lower abutting plate and the C-shaped frame are designed to be of a rotatable structure, braided wires are convenient to take and place, meanwhile, the upper abutting plate and the lower abutting plate are matched up and down to limit the braided wires, and installation operation is simplified; according to the locking mechanism, rapid positioning of the upper abutting plate is achieved through a rectangular column and a U-shaped groove, locking is completed by means of small-angle rotation of a locking plate and a locking groove, and stable locking is ensured by combining the effects of thread pressing and a steel spring.

The utility model relates to lithium battery recycling technical field especially, and more particularly to a kind of material sorting device of lithium battery disassembly.The utility model provides a kind of material sorting device of lithium battery disassembly, which is convenient to automatically collect cleaned electrode sheet and graphite powder, without manual operation, saves manpower and improves sorting efficiency.A kind of material sorting device of lithium battery disassembly, including ultrasonic cleaner, fishing net and guide column etc., the rear part of ultrasonic cleaner is connected with two guide columns left and right, and fishing net is sleeved between guide columns.The utility model is reversed to start motor to take up line after washing, so that fishing net moves upward, and when moving to the bending part of guide column, fishing net will rotate to ninety degrees to throw cleaned electrode sheet into collection box, achieving the effect of being convenient to automatically collect cleaned electrode sheet and graphite powder, without manual operation, saves manpower and improves sorting efficiency.

The utility model provides a fishing net recovery system and relates to the field of fishing net cleaning. The fishing net recovery system comprises a winding type fishing net arrangement mechanism and a fishing net recovery mechanism. The swing motion oil cylinder falls back, the swing motion oil cylinder drives the swing frame part to swing downwards and be laid flat, the rigid fishing net recycling part is laid flat along with the swing frame part, then the return motor part drives the return supporting part to slide backwards along the return sliding rail, and the fishing net on the rigid fishing net recycling part is lapped on the winding type fishing net tidying mechanism; the rigid fishing net recovery part relieves hanging of the fishing net, the fishing net completely falls on the winding type fishing net arrangement mechanism, the winding type fishing net arrangement mechanism arranges and stores the fishing net, the rigid fishing net recovery part moves up and down, and the cleaning depth adjusting effect is achieved; the rigid fishing net recovery part can directly drive the fishing net from the side face, and therefore the sweeping effect is better than that of a tow rope.

The invention discloses shellfish spermiation and ovulation monitoring and fertilized egg collecting and cleaning equipment, and relates to the technical field of shellfish culture. The shellfish spermiation and ovulation monitoring and fertilized egg collecting and cleaning equipment comprises a sparse fishing net, a dense fishing net, a hoisting mooring rope, a sliding assembly, a mechanical arm assembly, a cleaning module and a monitoring module. The dense-net scoop net is arranged below the sparse-net scoop net and is detachably connected with the sparse-net scoop net, and the dense-net scoop net and the sparse-net scoop net are different in mesh aperture (the aperture of the sparse-net scoop net is larger than that of the dense-net scoop net) so as to separate mucus, impurities and The monitoring module is a Hall sensor or a computer vision sensor; the Hall sensor needs to be adsorbed on one side of a shellfish shell to ensure that physiological activities of the shellfish are accurately sensed; a computer vision sensor needs to be matched with a camera (or a shooting module), equipment needs to be installed in an area parallel to shellfishes (most shellfishes are small in head, and rapid opening and closing actions of the shellfishes cannot be clearly observed when the shellfishes are overlooked or looked up), the visual angle of naked eyes can be simulated through parallel installation, and spermiation and ovulation behaviors can be accurately judged.

The application discloses a kind of photothermal synergic catalysis co-pyrolysis system and method of marine organic solid waste, method includes the following steps: waste fishing net, plastic garbage and seaweed are crushed and mixed uniformly according to mass ratio (2-4):(3-5):(1-3);Mixed material and multifunctional composite photocatalyst prepared by seaweed are sent into moving bed reactor according to mass ratio (10-20):1, under the condition of concentrated solar energy leading, electric heating auxiliary, continuous co-pyrolysis is carried out;Pyrolysis product is separated by three-stage condensation to obtain heavy oil, light oil, water and gas.The method realizes the green cycle of "waste treatment", the catalyst cost is low, the degree of system intelligence is high, and provides an efficient, environmentally friendly, economically feasible innovative path for the resource utilization of marine organic solid waste.

The present application relates to a kind of fishing net automatic regularizing collection equipment, including net stacking support and the net pulling roller frame being arranged at the front end of net stacking support, bottom layer supporting plate is arranged on net stacking support and can be lifted up and down, and net laying roller group is arranged above bottom layer supporting plate, fishing net enters net laying roller group through net pulling roller frame, net laying roller group is translated back and forth above bottom layer supporting plate and pulls fishing net, and fishing net is released to bottom layer supporting plate to make it show continuous Z type and stack layer by layer, and the front and rear ends of net stacking support are also respectively provided with a group of net pressing mechanism that can press the two ends of each layer of fishing net.

The utility model discloses a fishing net which comprises a net body, steel wire hoses and pull ropes, the edge of the net body is connected with a plurality of indicators, the indicators show the position of the net body in water, the two steel wire hoses are connected to the two ends of the net body, metal chains are connected into the steel wire hoses, and the pull ropes are connected with the net body. The steel wire hose is connected to the net body, the weight of the steel wire hose can be increased through the metal chain in the steel wire hose, the net body can stably fall to the water bottom, after water enters the steel wire hose, the steel wire hose is not prone to floating up, and the net body is not prone to floating up; whether the net body is fully unfolded or not can be conveniently judged by checking the distance between the two floaters, the floating sleeves can be colored, and the position of the net body can be conveniently seen.

The present invention relates to the technical field of fish survey in tidal creeks. Disclosed are a survey and sampling floating platform and quantitative evaluation method for fish in a tidal creek during flood and ebb tides. The floating platform comprises a floating platform frame and survey and sampling nets, wherein each survey and sampling net comprises a net mouth welded by a galvanized pipe. In the present invention, by means of the provided floating platform, corresponding sampling fishing nets are respectively lowered for collection during flood and ebb tides, and flow meter data is read to calculate tidal water volume flow, such that aquatic organisms and nutrients in the tidal creek during the flood and ebb tides can be comprehensively collected, the deficiency of related data collection during flood tides in existing research is made up for, accurate monitoring and quantitative evaluation of tidal creek organisms and substance transfer are achieved, and the types, quantities and distributions of tidal creek organisms during the flood and ebb tides, and changes in tidal water flow can be comprehensively understood, thereby deeply understanding the situations of tidal creek organisms and substance transfer, and providing important data support and decision-making basis for related research and ecological protection.

This utility model belongs to the technical field of fishing devices, specifically disclosing a fishing device including a lifting net, a biomimetic grass clump, a supporting floating platform, a winch, cables, a fixed anchor, and an operating floating platform. The lifting net consists of an air pipe and a fishing net. Four cables are equidistantly connected to the outer side of the air pipe along its circumference. Four supporting floating platforms are provided, floating around the lifting net. A first pull rope connects the four supporting floating platforms. A triangular support frame is fixedly installed on the top surface of the supporting floating platform. A pulley is rotatably connected to the top of the triangular support frame. One cable is wound around the pulley and connected to the shaft of the winch. The winch is fixed to a boat. The other three cables are wound around the pulley and connected to the fixed anchor. Multiple floats are connected circumferentially to the biomimetic grass clump. A second pull rope connects the operating floating platform to the first pull rope. This utility model has a simple structure, is easy to install, and is convenient and quick to operate. Furthermore, by creating a hiding environment for fish through aquatic plants, it can effectively improve fishing efficiency and catch volume.

The invention discloses a high-strength corrosion-resistant composite fiber fishing net preparation waste treatment device, and relates to the technical field of solid waste treatment, the high-strength corrosion-resistant composite fiber fishing net preparation waste treatment device comprises a frame body and a crushing box fixedly mounted on the frame body, and further comprises a chopping assembly mounted in the crushing box; the smashing box is provided with a discharging port, a discharging cavity, a discharging port and a smashing cavity, the fishing net enters the discharging cavity through the discharging port and then enters the smashing cavity to be smashed, and a blocking mechanism matched with the discharging port is installed on the smashing box; the chopping assembly comprises a hollow shaft rotationally installed in the smashing box, a differential shaft is rotationally installed in the side, located in the smashing box, of the hollow shaft, the differential shaft and the hollow shaft are connected through an electromagnetic coupling differential mechanism, and one end of the hollow shaft penetrates through and extends out of the smashing box. The cutting and smashing device has the advantages that high-speed rotating cutting, scissor type cutting and dragsaw type cutting are integrated, so that the cutting and smashing efficiency is higher, the cutting gap can be reduced, and cutting is more thorough.

The utility model relates to fishing net machine technical field, concretely relates to a kind of fishing net machine's compression joint shaft buffer mechanism, comprising: main shaft and compression joint shaft;Swing bar with movable hole is opened, and one end of the main shaft is penetrated movable hole;Driving part, it is fixedly connected with the main shaft;Driven part, it is rotatably connected with the swing bar and keeps contact with driving part;Swing arm, one end is fixedly connected with the compression joint shaft, and the other end of the swing arm is movably connected with swing bar.The utility model is added with main body, so that the main shaft and main body can be connected using bearing cooperation mode, i.e. the main shaft and main body are rotatably connected, and rolling support structure is arranged between main body and movable hole of swing bar, so that the main body and movable hole are rolling contact, the original main shaft-waist type hole sliding friction is converted into rolling friction, reduce hole wall and main shaft abrasion, prolong service life, while sliding impact can be eliminated, reduce vibration amplitude, guarantee compression joint precision.

The utility model discloses a kind of in-vivo blood clot cutting net structures, including the outer tube structure being cooperated with endoscope, the middle tube structure being arranged in outer tube structure and being cooperated with outer tube structure, and the inner core structure being arranged in middle tube structure;Wherein, the middle tube structure can be inserted or pulled out along outer tube structure, the inner core structure can be inserted or pulled out along middle tube structure.This application provides a kind of in-vivo blood clot cutting net structure, can be inserted into human body by the channel of endoscope, and can be deployed into adjustable angle's fishing net structure in human body, can effectively and quickly complete the fishing and cutting of large blood clot, and need not repeat extraction and insertion endoscope, that is, improve the cutting efficiency of large blood clot, also avoid the pain that repeat extraction and insertion endoscope brings to patient.

The utility model belongs to the technical field of fishery net weaving rope processing, and particularly relates to a three-motor twist digital controllable rope machine which comprises a lower support fixedly connected with a twisting and stranding mechanism and a motor type rope body winding mechanism. The twisting and stranding mechanism comprises an annular support fixedly connected to the upper side of the lower support, a positioning support and motor transmission equipment, a rotating ring is rotationally connected into the annular support and is in transmission connection with the motor transmission equipment, and a plurality of positioning blocks are installed in the rotating ring; the positioning blocks are driven by the self-locking motor driving set to rotate and move with the axis of the rotating ring as the circle center, first rope penetrating holes are formed in the multiple positioning blocks, the positioning support is fixedly connected to the middle of the upper side of the lower support, and second rope penetrating holes are formed in the positioning support. According to the utility model, different numbers of plied yarns can be well twisted and formed to form different ropes for weaving a fishery net.

This invention discloses an aquatic product harvesting and separation system, comprising a first aquaculture pond and a second aquaculture pond located to one side of the first aquaculture pond. The second aquaculture pond contains a holding area enclosed by fishing nets. A first connecting pipe connects the first aquaculture pond and the holding area, and a third vacuum device is connected to the first connecting pipe to create a vacuum. A water level difference maintenance device is provided between the first and second aquaculture ponds to maintain a higher water level in the first aquaculture pond than in the second aquaculture pond, allowing the mixture of aquatic products in the first aquaculture pond to be siphoned into the holding area through the first connecting pipe. A double-layer vacuum aquatic product separation and water diversion device is located to one side of the second aquaculture pond, capable of drawing in the mixture of aquatic products from the holding area and separating the aquatic products from the water before discharging them separately. This invention achieves lossless transfer of aquatic products and continuous, rapid separation of water and aquatic products.

This utility model relates to the field of fish farming escape prevention technology, specifically to a fish farming escape prevention device, including a base, a fishing net tube fixedly installed on the top of the base, a barrier tube slidably connected inside the fishing net tube, a sealing plate installed on the top of the barrier tube by screws, and an airbag fixedly connected to the outside of the sealing plate. The airbag changes with the water level. The fishing net tube is equipped with stirring blades to agitate the water flow. The use of the airbag allows the height of the escape prevention device to change with the water level, eliminating the need for manual adjustment and preventing fish from easily flying out or swimming out of the top of the escape prevention device, thus ensuring the effectiveness of the escape prevention device. Furthermore, the external wind force drives the blades to rotate, which agitates the water flow inside the fishing net tube, allowing dissolved oxygen and nutrients in the water to be evenly distributed, avoiding local hypoxia or nutrient overload, and providing a good growth environment for the fish.