47results about How to "Improve fishing efficiency" patented technology

The cyanobacterial bloom salvaging device comprises a rubber boat, the top of the rubber boat is fixedly connected with a sewage collecting pool, the rear side of the sewage collecting pool is fixedly connected with a lifting mechanism, the top of the front side of the lifting mechanism is fixedly connected with an air flotation machine, and the air flotation machine is fixedly connected with a water outlet of the air flotation machine. A slag scraping plate is fixedly connected to the top of the air flotation machine, a shovel plate is fixedly connected to the front side of the top of the sewage collection tank, a traction rope roller is arranged in the middle of the top of the rear side of the sewage collection tank, and a positioning mechanism is fixedly connected to the middle of the rear side of the sewage collection tank; by arranging the rubber boat, the sewage collection tank, the air flotation machine, the slag scraping plate, the shovel plate, the traction rope roller and the positioning mechanism, efficient salvage and collection of cyanobacterial blooms are achieved; an operator only needs to float the whole device on the surface of a water pool through a rubber boat, and cyanobacterial blooms are conveyed into a sewage collection pool through a shovel plate and separated through an air flotation machine.

The utility model relates to the technical field of overwater salvaging devices, in particular to an inland river overwater salvaging grabbing device which comprises a holding rod frame, the holding rod frame comprises an outer frame and a holding frame, the holding frame is installed in the outer frame in a sliding mode, a fixing pipe is fixedly installed at the lower end of the outer frame, an extending pipe is installed at the lower end of the fixing pipe in a sliding mode, and the extending pipe is connected with the fixing pipe. Locking bolts for locking the extension pipe are arranged on the two sides of the fixing pipe, and a center shell is fixedly installed at the lower end of the extension pipe. By arranging the slidable holding frame, an operator can conveniently adjust the holding position, through cooperation of a fixed pipe and an extension pipe and arrangement of a locking bolt, the length of the device can be adjusted according to actual fishing requirements, and the device adapts to fishing operation of different depths. And the multiple clamping claws and the driving frame are installed on the center shell, synchronous clamping of the objects can be achieved, and the fishing efficiency is improved.

The application discloses a fishing device used in the technical field of phosphating, which comprises a first hook, a second hook and a third hook, the first hook is connected with the second hook and the third hook, the third hook is connected with the first hook and the second hook, the top of the first hook, the second hook and the third hook is connected with a traction part, the traction part is used for pulling the first hook, the second hook and the third hook, when the force applied on the first hook by the traction part is greater than the force applied on the second hook and the third hook, the first hook vertically rises, the second hook and the third hook downwardly incline, and the second hook and the third hook are fixed from the side or the bottom of the hanging object by the downward inclination of the second hook and the third hook.

The application relates to the technical field of flow channel cleaning, and discloses a dam water inlet flow channel floating object cleaning device which comprises a fixing plate arranged at a dam water inlet flow channel opening, a water inlet opening is formed in the fixing plate and communicates with the dam water inlet flow channel opening, a filter plate is arranged in the water inlet opening, fixed blocking strips are fixedly installed on the filter plate, a salvage mechanism for cleaning garbage and a driving mechanism for driving the salvage mechanism to work by using water flow are arranged on the fixing plate, the salvage mechanism comprises movable rods, limiting rods, U-shaped frames and a plurality of first arc-shaped fixed strips, a plug groove and a limiting groove are formed in the upper end of the fixing plate, and the movable rods and the limiting rods are movably installed in the plug groove and the limiting groove respectively. The dam water inlet flow channel floating object cleaning device aims to solve the problems that, in the prior art, accumulated floating objects in front of a dam are cleaned by manual work, the efficiency is low, there are hidden dangers, and tree branches are easily stuck on the filter screen under the impact of water flow and are difficult to clean.

This invention provides a high-efficiency, water-saving, tiered aquaculture tank, belonging to the field of aquaculture technology. It addresses the problem in existing tiered aquaculture tank structures where the height and position of the upper tank limit the ability of workers to quickly and flexibly access aquatic organisms in all corners of the upper tank. The invention includes a support frame, a movable tank, supporting rails, an easy-access component, and a partition component. The movable tank is located at the top of the support frame. Two supporting rails are fixedly connected to the left and right sides of the support frame. The easy-access component is located at the top of the support frame. The partition component is located inside both the fixed and movable tanks. This invention solves the problem of inconvenient operation of the upper movable tank through the easy-access component, facilitating the retrieval of aquatic organisms and the feeding of materials. Simultaneously, the partition component allows for flexible separation of the internal space of the fixed and movable tanks, meeting diverse aquaculture needs.

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 application discloses a floating fish-light complementary system, which comprises a support unit, a photovoltaic assembly fixed on the support unit, a net cage, a net-retrieving assembly, and a sinker. The net cage comprises a floatable float located at the upper end of the net cage and connected with the support unit, a sinker located at the lower end of the net cage and extending around the central axis of the net cage, and a net cover covering at least the bottom and the side wall of the net cage. The net-retrieving assembly comprises a plurality of second pull ropes distributed along the circumferential direction of the net cage, the second pull ropes being connected with the sinker and a first rope-retrieving device arranged at the upper end of the net cage and capable of pulling the second pull ropes. The application provides a floating fish-light complementary system, which can culture aquatic products in the net cage and catch fish in the net cage, thereby reducing the fishing area and improving the fishing efficiency. Moreover, the net cage is retractable, which further reduces the workload of fishing operation and improves the fishing efficiency.

This application provides a bass fry hatching and rearing pond, belonging to the field of bass farming technology. The bass fry hatching and rearing pond includes a rearing pond and an aggregation component. The aggregation component includes an electric cylinder, a first filter plate, an aggregation frame, and a second filter plate. In use, when bass fry need to be retrieved, the electric cylinder pushes the aggregation frame and the first filter plate upwards. The lower part of the aggregation frame and the first filter plate remain in the water inside the rearing pond. Then, the farmer can move the second filter plate, which moves within the aggregation frame, further compressing the bass fry and gathering them together. This allows for easy retrieval of the fry, saving time and effort and improving efficiency. It is highly practical.

The utility model discloses a bionic fish bait for driving dead fish to swing, comprising: a fish bait body; a swing assembly, one end rotationally connected to the fish bait body, the swing assembly swings to drive the dead fish to swing; a swing driving assembly, arranged in the fish bait body, the swing driving assembly is driven to be connected with the swing assembly, for driving the swing assembly to swing relative to the fish bait body; an induction assembly, arranged on the fish bait body and electrically connected with the swing driving assembly, for inducting the dead fish and / or water. The utility model ingeniously embeds the bionic fish bait in the dead fish body, and combines the swing driving assembly to drive the swing assembly to simulate the natural swing action of the live fish. Not only the fish smell of the dead fish itself is reserved, but also the swimming posture of the live fish is endowed. This combination makes the fish bait not only rely on the smell when attracting fish, but also through dynamic behavior simulation, greatly improves the efficiency and success rate of fish luring.

The utility model relates to the technical field of fishing devices, and discloses an aquaculture fishing device which comprises a fishing barrel, a fixing mechanism is arranged on the side wall of the fishing barrel, the fishing barrel is connected with a barrel cover through the fixing mechanism, and clamping mechanisms are arranged on the side wall of the fishing barrel and the side wall of the barrel cover. The clamping mechanism comprises clamping jaws and clamping strips, the side walls of the clamping jaws are fixedly connected to the bottom of the side wall of the fishing barrel and the side wall of the barrel cover, the side walls of the clamping strips are fixedly connected to the bottom of the side wall of the fishing barrel and the side wall of the barrel cover, the clamping jaws and the clamping strips are arranged in a staggered mode, and inner cavities of the clamping jaws are matched with the clamping strips. According to the fishing barrel, when a plurality of fishing barrels need to be spliced, the two fishing barrels are vertically stacked, the clamping claws and the clamping strips are made to be staggered, then the fishing barrels are rotated to be meshed, the clamping claws and the clamping strips can be meshed, splicing is completed, and through cooperation of the structures, the fishing capacity can be rapidly expanded, and the fishing efficiency can be improved.

The utility model relates to the technical field of antioxidation, and provides an aluminum profile surface antioxidation treatment device which comprises an electrolytic tank, two guide plates are fixedly connected to the inner wall of the electrolytic tank, a first guide groove is formed in one side of each guide plate, a second guide groove is formed in the other side of each guide plate, and the first guide grooves formed in the two guide plates are jointly and slidably connected with a first rotating shaft; the device has the advantages that the electric telescopic rod drives the fishing plate to move along the double guide grooves, the first guide groove vertically lifts a profile, the arc design of the second guide grooves enables the fishing plate to synchronously complete inclination when the fishing plate ascends to the tail end, and the fishing plate is driven by the electric telescopic rod to move along the double guide grooves. The profile automatically flows to the edge of the electrolytic tank, the seepage tank can ensure that electrolyte is completely drained in the ascending process of the salvage plate, splashing of the electrolyte is avoided, and the salvage efficiency is effectively improved.

The application provides an active grabbing type recovery device for an inflatable bridge plug, comprising a fishing barrel, one end face of the fishing barrel is provided with an oil pressure cavity for communicating with a coiled tubing; a plurality of fishing claws are uniformly distributed around the circumference of the fishing barrel, the plurality of fishing claws are provided with clamping claw grooves for clamping a fishing head of the inflatable bridge plug; a hydraulic drive member is further included, the hydraulic drive member can make one end of the plurality of fishing claws provided with the clamping claw grooves tend to be close to each other under the action of the hydraulic pressure; a restoring element is further included, the restoring force of the restoring element can make the one end of the plurality of fishing claws provided with the clamping claw grooves tend to be far away from each other. The application overcomes the low fishing efficiency and poor fishing effect of the existing fishing tool for the through-tubing inflatable bridge plug, can be centered in the wellbore during running, and can press and grab the coiled tubing, the fault tolerance of fishing is high, and the operation efficiency and operation effect are greatly improved.

The utility model belongs to the technical field of sewage treatment, and particularly discloses a sewage pool deodorization device which comprises a vertically-arranged supporting plate, and a controller, a fishing mechanism and a liquid outlet mechanism are arranged on the two opposite side faces of the supporting plate respectively. According to the deodorization device for the sewage pool, due to the design of the fishing mechanism, the motor drives the lead screw to rotate, the lead screw drives the ferrule to move on the lead screw, the ferrule drives the electric telescopic rod and the lifting rod to move through the connecting rod, then the L-shaped plate horizontally moves in the sewage pool, and the electric telescopic rod can control the lifting rod and the L-shaped plate to ascend and descend; by means of the automatic operation, the workload and difficulty of manual salvage are reduced, and the salvage efficiency is improved; and through the design of the liquid outlet mechanism, deodorant liquid can be sprayed into the sewage, so that the sewage is deodorized, and the deodorization effect of the sewage pool is further improved.

The utility model discloses a novel underwater nesting and hook feeding device, which relates to the technical field of nesting and hook feeding and comprises a nesting boat, an annular boss is arranged in the middle of the nesting boat, a through hole is arranged in the annular boss, an elastic cover plate is arranged above the through hole, a nesting spoon is arranged in the through hole, and a mounting groove is arranged on the side surface of the annular boss at one end. A mounting frame is arranged at the top of the mounting groove, a fishing line wheel is arranged in the mounting frame, a hook feeding mechanism is arranged on the outer side of the fishing line wheel, a telescopic baffle is arranged on the side edge of an annular boss at the other end of the mounting frame, a through groove is formed in the position, located in the nesting boat, of the side face of the baffle, and an automatic winding wheel is arranged above the through groove; according to the novel bait throwing and hook placing device, the structure and the function of the novel bait throwing and hook placing device are further improved, and the novel bait throwing and hook placing device better meets the actual requirements of fishing enthusiasts.

The utility model provides a self-leading type fishing spear and a fishing tool string, the self-leading type fishing spear comprises a guide cylinder and a solid spear rod, the guide cylinder is arranged outside the solid spear rod, the upper end of the guide cylinder is provided with a connector body, and a cylinder opening at the lower end of the guide cylinder is arranged to be a forward rotation poking opening; a spear tile sliding groove is formed in the outer circumferential surface of the solid spear rod, the spear tile sliding groove is an arc sliding groove of a structure with the outer portion smaller than the inner portion, a forward rotation sliding block spear tile is arranged in the spear tile sliding groove, and the upper end of the solid spear rod is fixed to the inner wall of the top end of the guide cylinder. The fishing tool string comprises the self-guiding type fishing spear. The fishing spear disclosed by the utility model can easily enter a fish falling water hole to fish a fish.

An active driving netting system for intelligent fishing operation belongs to the technical field of active driving netting for intelligent fishing operation, and is characterized by comprising a planar flexible mesh, an outer frame, a plurality of thin steel wires, a sensing and control integrated intelligent sensor, a horizontal propulsion propeller and a vertical propulsion propeller; the plane flexible mesh is connected to the outer side frame through the thin steel wires; the sensing and control integrated intelligent sensor is arranged on the outer side frame, the horizontal propelling propeller and the vertical propelling propeller are connected to the left rear edge, the right rear edge and the front end of the outer side frame respectively, a sealed module is arranged in the sensing and control integrated intelligent sensor, the structure is compact, the system reliability is high, fish body stress is remarkably reduced, and the service life of the system is prolonged. And cooperation with the operation process of the fish pump can be formed, the fishing efficiency is improved, and the manual participation degree is reduced.

The utility model provides an LED (light-emitting diode) fish gathering lamp, which belongs to the technical field of illumination and comprises a lamp holder and a light-emitting component, the lamp holder comprises a first plane and a second plane, the first plane and the second plane are connected to form a bending angle, the light-emitting component comprises a first lamp group and a second lamp group, and the power of the first lamp group is smaller than that of the second lamp group. In order to achieve a better fish gathering effect, a plurality of fish gathering lamps are usually used in a combined mode, and due to the fact that the first lamp sets on the two sides of each fish gathering lamp adopt the LED light sources with relatively small power, a weak-illumination area, namely a so-called dark area, can be formed between the lamps when the fish gathering lamps are independently used, however, in the design, the LED light sources are used in a combined mode. The small-power first lamp sets on the side edges can form a light ray superposition effect between every two adjacent fish gathering lamps, so that the problem of insufficient illumination in a dark area is solved, the brightness distribution of the whole irradiation area is more uniform, and the fish gathering efficiency is improved.

The utility model discloses a kind of factory area perch aquaculture pond systems of convenient grading fishing and feeding, including aquaculture pond body, the bottom of aquaculture pond body is equipped with the fish collecting groove of inclination, fish collecting groove connects grading fishing channel, and different specifications grading net are equipped in channel;Aquaculture pond body upper is equipped with the feeding device containing slide rail, moving frame and bait feeder;Water quality and temperature monitoring device are equipped in aquaculture pond body, outside is equipped with controller, each device is electrically connected with controller;The system can realize perch grading fishing, uniform feeding and intelligent monitoring management of aquaculture environment, improve fishing efficiency, reduce aquaculture cost, provide good environment for perch healthy growth.

This utility model belongs to the technical field of fishing devices, specifically disclosing a fishing device including a lifting net, an operating platform, biomimetic grass, support columns, a winch, cables, and fixed anchors. The lifting net consists of an annular frame and a fishing net fixedly connected to the frame. Four cables are equidistantly connected along the outer side of the frame. Four support columns are fixedly inserted around the lifting net, with pulleys at the top of each column. One cable is wound around the pulley and connected to the winch shaft, which is fixed to the boat. The other three cables are wound around the pulleys and connected to the fixed anchors. The biomimetic grass is placed inside the annular frame, and a pull rope connects the operating platform and the support columns. 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 the biomimetic grass, it can effectively improve fishing efficiency and catch volume.

The application provides a kind of underwater fishing robot of trackable capture, and relates to underwater robot field.The underwater fishing robot of trackable capture, including robot main body, the position of the robot main body inside is close to right side and is penetrated and is provided with push rod motor, the output end of the push rod motor is fixedly connected with push rod, the right end of the push rod is fixedly connected with rotating motor, the output end of the rotating motor is fixedly connected with first rotating shaft, the right end of the first rotating shaft is fixedly connected with screw rod, the outer diameter of the screw rod is threadedly connected with moving cylinder, the outer diameter of the moving cylinder is fixedly connected with mounting plate close to left side position.The LED light attracts organisms, range finder detects the position of organisms, and signals are transmitted to the robot main body, so that the robot main body approaches organisms, and then cooperates with arc-shaped robot arm and hemispherical fisher to capture organisms, effectively improves fishing efficiency.

The utility model relates to bird's nest processing technical field especially a bird's nest processing silk -retrieving device, include: vertical pole and install on the vertical pole's horizontal moving frame, in the inside sliding connection of horizontal moving frame has slide, the middle part of slide slides up and down and has vertical moving pole, wherein, fixedly install the mounting frame in the bottom of vertical moving pole, the bottom relative installation of mounting frame has two clamping assemblies, still be provided with the drive assembly for driveing the clamping assembly movement in the bottom of mounting frame, the utility model discloses a mechanical salvaging of two clamping assemblies to the mechanical salvaging of two clamping assemblies after the bubble, compared with traditional manual mode, the silk -retrieving efficiency is improved significantly, at the same time, the mechanization operation ensures the operation standardization, effectively avoids the silk -retrieving quality uneven problem caused by the hand difference and the operation not unified in the manual operation, the design structure is simple, and the overall efficiency obtains the very big promotion.

The utility model discloses a soft antifouling high-strength fishing net, which belongs to the technical field of fishery equipment, and comprises a plurality of steel ropes, the outer wall of one of the steel ropes is fixedly connected with a plurality of floaters, the outer wall of each of the floaters is fixedly connected with two reflective stickers, and the reflective stickers are fixedly connected with the steel ropes. Nettings are fixedly connected among the steel ropes, and a plurality of lead weights are fixedly connected to the outer wall of one of the steel ropes. The fishing lines are made of various materials such as the metal wires, the high-strength fiber braid layers, the buffer layers and the antifouling coatings so as to weave a plurality of fishing nets with regular hexagonal meshes, and the metal wires, the high-strength fiber braid layers and the buffer layers can ensure the flexibility of the fishing nets and cannot be broken when the fishing nets are impacted by large fishes; and the regular hexagonal meshes are arranged in a honeycomb shape, so that a good intercepting effect on fish schools can be achieved, the probability that the fishes are captured is increased, and the fishing efficiency is improved.

This utility model relates to the field of fishing equipment technology and discloses a deep-sea intelligent fishing net for freshwater fish in lakes. It includes a fishing net placed underwater and a fixed base embedded on the shore. A winch is fixedly installed on the top of the fixed base, and a take-up rope is wound around the outside of the winch's take-up roller. Fixed rings are fixedly installed at the four corners of the top side of the fishing net, and ropes are fixedly installed on the top of the fixed rings. A connecting seat is fixedly installed at the other end of the ropes. A gathering component for lifting the fishing net above the water surface is provided on the outside of the ropes. Starting the servo motor drives the main pulley to rotate, which in turn drives the secondary pulley to rotate via the transmission belt. This causes the gears to roll along the outside of the ropes, moving the entire outer shell closer to the fishing net. Simultaneously, the buoyancy of the main float and side floats further lifts the fishing net upwards, facilitating the harvesting of adult fish and improving harvesting efficiency.

The utility model discloses a fishing tackle storage device for fishing, including two box, two the box is through a plurality of hinge rotation connection between, two box outer wall all fixed mounting is frame, two frame outer wall all is set with the sliding slot, two frame outer wall all fixed mounting is four angle guards, two the sliding slot section all are T shape, wherein one the sliding slot inside sliding installation has two plug -in board. The utility model discloses through setting plug -in board, fixed bolt, connecting plate, extruded plate and accessory box etc. component, need to go to the central fishing of water area, and plug -in board inserts the sliding slot and is connected the box through fixed bolt horizontally into the ship body pedestal, and the accessory box is installed with the connecting frame cooperation connecting plate, and the extruded plate is driven under the lifting ring screw rod, and the accessory box is fixed on the both sides of the box to form the buoyancy structure with the antiskid pad, does not need extra boat, reduces the cost, saves the space, and the integrated storage and mobile function improve the fishing efficiency.

The present application relates to the technical field of drilling construction, and provides a fishing method, a treatment device and a system for directional drilling shallow hole buried drill, the fishing method comprising: acquiring the sticking information and the trajectory information of the drill hole; determining the to-be-loosened section of the drill hole according to the sticking information; and determining the spatial position of the to-be-loosened section according to the trajectory information; determining the construction trajectory of at least one loosening hole according to the spatial position, the construction trajectory being located on the side of the drill hole trajectory within the depth range corresponding to the to-be-loosened section, and the construction trajectories of the loosening holes being arranged at intervals with the drill hole trajectory; opening the loosening hole according to the construction trajectory, so as to loosen the rock mass around the to-be-loosened section, and pull up the buried drill rod in the drill hole. The to-be-loosened section is spatially positioned through the trajectory information of the directional drill hole, and the rock mass around the to-be-loosened section is loosened through the loosening hole arranged at intervals with the drill hole, so that the buried drill rod is fished, without the need to use a casing milling drill rod and related accessories, the fishing efficiency of the shallow hole buried drill is improved, and the device cost is reduced.

The utility model discloses a fishing device for an industrial culture pond. The fishing device is characterized by comprising a guide mechanism, a fishing mechanism, a traction rope and a motor, the guide mechanism comprises two U-shaped guide rails which are symmetrically arranged and horizontal guide rails which are arranged on the outer side walls of the tops of the U-shaped guide rails; the fishing mechanism comprises an upper cross rod moving along the horizontal guide rail, a lower cross rod moving along the U-shaped guide rail and a fishing net arranged between the upper cross rod and the lower cross rod, and the two sides of the fishing net are connected with telescopic rods used for adjusting the distance between the upper cross rod and the lower cross rod respectively. Guide columns symmetrically arranged at the bottoms of the two ends of the upper cross rod are clamped and embedded in upper guide grooves of the upper cross rod and are in sliding fit with the upper guide grooves; rollers symmetrically arranged in concave areas on the two sides of the lower cross rod are clamped and embedded in side guide grooves of the U-shaped guide rails and are in sliding fit with the side guide grooves; the automatic fishing device has the advantages that the whole process of continuous underground net, fish driving, fishing and the like is achieved, and the fish fishing efficiency is improved.

The cleaning and recycling system comprises a vehicle cleaning platform and a garbage cleaning pool, a plurality of sewage recycling channels are formed in the vehicle cleaning platform at intervals, elastic filtering assemblies are arranged on the sewage recycling channels, and air injection channels communicating with the sewage recycling channels are formed in the vehicle cleaning platform; an air pump is arranged in the air injection channel, the garbage cleaning pool is located on one side of the vehicle cleaning platform, the bottom of the garbage cleaning pool communicates with the multiple sewage recycling channels, and the air pump is designed to inject air flow, push sewage in the sewage recycling channels to be injected into the bottom of the garbage cleaning pool and drive the elastic filtering assembly to vibrate at the same time. By adopting the scheme, the air flow generated by the air pump is used as a power source, so that cleaning sewage containing silt is sucked and injected to the bottom of the garbage cleaning pool to generate a disturbance effect on the bottom of the pool, the conditions of sludge hardening and sedimentation are reduced, and meanwhile, the disturbance effect in the garbage cleaning pool is beneficial to separation of large-density garbage and light garbage.

This utility model relates to the field of fishing machines and discloses a green and low-carbon marine fishing machine, comprising: a frame, a feeding mechanism on the upper surface of the frame, the feeding mechanism including brackets fixedly connected to the upper ends of the inner walls on both sides of the frame, a sliding button slidably connected to the upper surface of the brackets, a snap-fit ​​bracket fixedly connected to one side of the lower surface of the sliding button, a spring fixedly connected to the side of the snap-fit ​​bracket away from the center, a fixed cover provided in the center of the upper surface of the brackets, a rotating cover rotatably connected inside the fixed cover, and limit posts fixedly connected to both sides of the lower surface of the fixed cover. The fixed cover can be quickly fixed and removed by the sliding button, and then by rotating the rotating cover, bait can be placed into the feeding net through the feeding trough, and the bait is placed in the center of the frame. This mechanism can effectively improve the trapping efficiency, prevent fish from eating the bait outside the fishing machine, and effectively improve the fishing efficiency.

The application discloses a rectangular net cage device and a deep-sea breeding and fishing equipment, and relates to the technical field of deep-sea breeding, wherein the rectangular net cage device comprises a cage main body, a fishing net, four guide ropes and four guide rings; the cage main body is internally provided with a containing space for fish breeding; the cage main body is provided with four bottom fixing rings and four top fixing rings; all the bottom fixing rings and all the top fixing rings are located at the connecting positions of the adjacent two side walls of the containing space; the fishing net is provided with four pull ropes connected with the four corners of the fishing net; each guide rope is movably arranged in a bottom fixing ring and a top fixing ring; when the guide ropes and the pull ropes are pulled or released, the guide ropes can adjust the height of the guide rings, and the pull ropes can adjust the depth of the fishing net. The technical effect of the technical scheme provided by the application solves the problems of the traditional fishing net pulling and catching mode of the net cage, the complex operation, the long catching time, the easy fish fainting or even death, and the influence on the appearance and taste of the fish.

The utility model belongs to the field of fishing cage, concretely relates to a kind of aquatic product breeding living body fishing cage, including big cage, the inside rotation of big cage is connected with small cage, mesh adjusting mechanism is commonly provided between big cage and small cage, the outer wall of big cage is fixedly connected with fixed base, fixed base is fixedly connected with hollow cylinder, and adjusting sleeve is installed in the inside of the end opening of hollow cylinder through bearing. The utility model is provided with big and small fishing cage, and the through hole is formed in big cage and small cage, but the diameter is different, small cage is nested in the inside of big cage by the cooperation of convex ring and ring groove, and can relatively rotate, by rotating small cage, the coincidence area of through hole on two layers of cage body can be changed, to realize the stepless regulation of mesh size. Mesh adjusting mechanism is used to lock the position of small cage after adjustment, adapt to the fishing demand of different body shape aquatic product, easy to operate, practical, effectively improve fishing efficiency and selectivity.