CN115769804B - Multi-net-bag type euphausia superba continuous pumping fishing - Google Patents

Abstract

The invention discloses multi-net bag type euphausia superba continuous pumping fishing, which belongs to the technical field of fishery and comprises a connecting rod piece connected with a ship body, wherein the connecting rod piece is used for fixing a plurality of first rope bodies, the first rope bodies are connected with guide pieces, the adjacent guide pieces are connected with trawl nets for capturing euphausia superba, the tail ends of the trawl nets are connected with separation assemblies, floating plates floating on the water surface are connected above the separation assemblies, a fish and shrimp screw pump and a bird driving assembly are arranged on the floating plates, and conveying pipes are connected between the fish and shrimp screw pump, the separation assemblies and the ship body. According to the invention, the krill is guided to enter the trawl through the connecting rod piece, is conveyed back to the ship body under the action of the fish and shrimp screw pump after being screened by the sorting assembly, and is protected by the bird driving assembly, so that continuous, low-loss and high-efficiency krill fishing is realized, and the energy-saving, environment-friendly and environment-friendly effects are realized.

Description

Multi-net-bag type euphausia superba continuous pumping fishing

Technical Field

The invention belongs to the technical field of fishery, and particularly relates to a multi-net-bag type euphausia superba continuous pumping fishing device.

Background

Euphausia superba (school name: euphausia superba) is a krill living in the antarctic waters of the south America, which grow 45-60 mm in length, 90 mm at maximum. The antarctic krill Gu Kezhong contains a large amount of chitin, and a certain amount of astaxanthin, krill oil and other substances in the body, and has the characteristics of high protein and low fat. The euphausia superba has rich nutritive value, and the demand of each country for euphausia superba is rising year by year.

The fishing of antarctic krill usually adopts a trawl fishing method, and the trawl fishing method is one of main operation modes of the marine fishing industry. The trawl operation fishing object is very large, can operate in a large range, has active and flexible production and high fishing efficiency, and plays a quite important role in fishery production. But under the condition of a large number of fishing operations, aquatic organisms except the target captured object are easy to carry and capture, the living ability of the organisms is poor, the organisms are easy to die after landing, the ecological system of the ocean is irreversibly damaged, the capacity of the trawl is limited, the acquisition amount of the target captured object can be reduced by other organisms, the trawl is easy to burst, and economic loss is caused.

European patent publication No. EP1465803B1 discloses a trawl vessel for use with a trawl for capturing marine biological resources, the invention comprising a trawl, a trawl bag provided at the tail of the trawl, a rope connected to the vessel and a trawl drum for towing the trawl, the vessel being provided with a lock chamber, the main body of the lock chamber being located below the water line of the vessel for storing the captured objects, the lock chamber being provided with a main channel upwards. The device of the invention realizes that the captured objects are brought to the ship of the trawl through the gate chamber and the trunk channel relative to the trawl in a gentle way, avoids the crushing of the inactive fish and shrimp, and reduces the economic loss. The invention has the following technical scheme that: after the trawl collects fishes and shrimps, seabirds which are coiled in the air are easily attracted and stay on the trawl to gnaw the fishes in the trawl, so that economic loss is caused, and seabird instruments are easily pulled to drag to die, so that ecological environment is damaged; when the shrimp is caught in a small volume, the meshes of the trawl are too large, and shrimp and shellfish organisms are easy to be flushed out of the meshes by the mobile water flow, so that the resource loss is caused.

Disclosure of Invention

The invention aims to provide a multi-net bag type euphausia superba continuous pumping fishing device which can realize continuous, high-efficiency and accurate fishing, prevent net explosion and effectively protect fishing objects in the fishing process.

The technical scheme adopted by the invention for achieving the purpose is as follows:

multi-net bag type euphausia superba continuous pumping fishing, comprising: the connecting rod piece is connected with the tail of the ship, the connecting rod piece is fixedly provided with a plurality of first rope bodies, any one first rope body is connected with a flow guide assembly, the adjacent flow guide assemblies are connected with the same trawl, the trawl comprises a capturing port and a conveying port, a plurality of auxiliary adjusting pieces which keep the capturing port open are arranged in any one flow guide assembly, the conveying port is fixedly connected with a sorting assembly, a floating plate is connected above the sorting assembly, a fish and shrimp screw pump is arranged on the floating plate, conveying pipes are connected between the fish and shrimp screw pump and the sorting assembly and the ship body, and bird driving assemblies are symmetrically arranged on the upper end face of the floating plate at the edge. The utility model provides a boats and ships navigation is with dragging link spare, link spare drives a plurality of trawl and removes and implement and catch in the aquatic, the water conservancy diversion subassembly helps increasing to catch the mouth degree of opening, improve collection efficiency and prevent that the whole upset of trawl from causing the catch to run off, select separately the subassembly and screen out and put back into the ocean with other living things except antarctic krill, guarantee ecological system balance, the antarctic krill that screens is continuously carried to the boats and ships through fish and shrimp screw pump and conveyer pipe and is collected, realize long-time continuous catching and prevent to explode the net, the floating plate provides the buoyancy of pump body and below select separately the subassembly, avoid sinking the feeler reef and lead to the trawl to break, drive the antarctic krill that bird subassembly kept in under water to dispel the birds of sky, reduce the antarctic krill that catches and gnaw the probability of eating, reduce economic loss.

Preferably, the connecting rod piece comprises a base shaft, the base shaft is connected with the ship body through a rope, the base shaft is rotationally connected with a plurality of first shaft sleeves, the base shaft is fixedly provided with a plurality of second shaft sleeves positioned between the adjacent first shaft sleeves, rotating blades are circumferentially distributed on any first shaft sleeve, an auxiliary rod is fixedly arranged on any second shaft sleeve, and auxiliary plates are arranged on two sides of the auxiliary rod. A plurality of first axle sleeves drive the rotating vane and freely rotate on the basal shaft and then disturb the surface of water, reduce the impact of the quick rivers that the boats and ships marched to collecting net interior shrimp body, reduce the mortality and the residual limb rate of antarctic krill, improve its economic value, contact and press the accessory plate to form friction vibrations when rotating the rotating vane, can drive aquatic large-scale meat fish crowd and living beings, also drive the birds that the device was above the air simultaneously, avoid it to swallow the antarctic krill of catching, further improve the survival rate of antarctic krill in the trawl, reduce economic loss, the marine worker can observe the spray size that the rotating vane disturbance formed and the whole wading degree of depth of connecting rod piece and judge the trawl internal capture volume, be convenient for in time adjust the speed of a plane, avoid the net of exploding.

Preferably, the flow guiding component comprises a flow guiding plate, the flow guiding plate is a bent plate, the bent plate is fixed on the bent inner side of the flow guiding plate, a pontoon and a counterweight cylinder are respectively fixed on the upper side and the lower side of the bent plate, a first through hole is formed in the side wall of the counterweight cylinder in a surrounding mode, a second through hole is formed in the center of the axis of the counterweight cylinder, and a counterweight piece is arranged in the counterweight cylinder. The trawl has directly influenced the capture volume and the guide effect to the catch thing at the opening size of trawl in-process of dragging, the rivers velocity of flow of the crooked inboard cambered surface of guide plate is faster, then the pressure that this side received is littleer, thereby make the guide plate move towards the capture mouth outside under the water pressure effect, thereby increase the opening of capture mouth, and then improve capture volume and guide effect, the flotation pontoon provides the guide plate buoyancy, the counter weight section of thick bamboo increases guide plate bottom gravity through inside counter weight spare, the design of flotation pontoon and counter weight section of thick bamboo is favorable to the maintenance of guide plate in aquatic gesture, avoid the guide plate to receive the upset after the impact and cause the adverse effect that the capture mouth opening was reduced, the water can circulate in first through-hole and second through-hole when passing the counter weight section of thick bamboo, thereby form tiny bubble and come-up in guide plate one side, be favorable to driving the large-scale organism of predatory net both sides, avoid it to be close to the shrimp in the trawl and broken trawl, cause economic loss, when the turbulent side is the trawl, by the crooked inboard cambered surface of guide plate upwards and down water is blocked respectively, reduce the impact force to the capture mouth to the side impact on the side, improve the guide effect to the capture mouth.

Preferably, the auxiliary adjusting piece comprises an elastic rope fixed between the pontoon and the counterweight barrel, floating balls are arranged on the elastic rope at intervals, flexible floating plates are fixed on adjacent floating balls, and the flexible floating plates are bent plates and open towards the first rope body. The water body contacts with the floating ball when longitudinally flowing through the guide plate, the floating ball increases the buoyancy of the guide plate, and the floating ball swings through the elastic rope after being impacted by the water body, so that the water flow impact is relieved, the shaking of the trawl connected with the guide plate is reduced, the fish and shrimp captured inside is protected, the residual limb rate and the death rate are reduced, the economic value is improved, the buoyancy of the guide plate is further improved by the flexible floating plate, the contact area with longitudinal water flow is improved by the flexible floating plate which is vertically arranged, the water resistance on one side of the curved cambered surface of the guide plate is further improved, the guide plate is driven to move in the direction away from the center of the capturing port by the flexible floating plate, the opening of the capturing port is further increased, and the capturing rate of the trawl and the guiding effect on fish and shrimp are improved.

Preferably, select separately the subassembly and including the protective housing, the conical tank has been seted up to the protective housing inside, is provided with the guide net in the conical tank, and protective housing bottom intercommunication is provided with the transverse separation board, is equipped with the longitudinal separation board in the conical tank, and protective housing both sides are equipped with the escape orifice with the conical tank intercommunication, and protective housing one end is connected with the delivery port, and the other end is provided with the collection net, and the collection net passes through the conveyer pipe with the shrimp screw pump and is connected. The fish and shrimp in the collecting net enter the conical groove in the protective shell through the conveying port, the guide net guides the fishing matters to the transverse partition plate, under the action of high-speed movement of the ship body, water flows through the conical groove at a higher speed, the swimming capability of small fish, shellfish and shrimp is weaker, the fish and shrimp can pass through the transverse partition plate and return to water under the action of hydrodynamic force, large fish and crabs with crawling capability can leave the protective shell from the escape port at the side and return to the water after being blocked by the longitudinal separation plate, and the rest euphausia superba in the fishing matters can enter the collecting net through the gap of the longitudinal separation plate, so that the possibility of low capturing quantity of the euphausia superba is reduced, the probability of net explosion is reduced in the capturing process, meanwhile, the biological diversity of the ecological system in water is also protected, the capturing efficiency of the euphausia superba is improved, and the capturing cost is saved.

Preferably, a connecting plate is arranged between the adjacent floating plates, the connecting plate comprises clamping plates fixed on the upper end face and the lower end face of the floating plates, and a spiral spring is fixed between the adjacent clamping plates. Adjacent floating plates are close to or far away from each other after being impacted by water body when the water surface slides, and then the spiral springs are extruded or stretched through the connecting plates, the spiral springs prevent the floating plates from being close to each other and deviating from each other through deformation, on one hand, the moving range of the floating plates is limited, the phenomenon that the moving range of the floating plates is too large to leave a preset fishing area for fishing is avoided, the fishing efficiency is low, on the other hand, the phenomenon that the collecting net below the floating plates collides with each other to cause broken limbs and death of euphausia superba is avoided, so that economic loss is reduced, when the collecting amount in the collecting net is too large, the floating plates connected above can be driven to sink, the adjacent floating plates can share the downward pulling force received by the sinking plates through the clamping plates and the spiral springs, the sinking risk of the single-side floating plates is reduced, and therefore the fishing spiral pump is enabled to normally convey the euphausia superb above the water surface to pump to the ship, and the efficiency of the euphausia superb is guaranteed.

Preferably, the bird repellent subassembly is including being fixed in the installation base member of kickboard up end, and the installation base member rotation is connected with first pivot, and first pivot is fixed with the swinging arms, and the swinging arms end is fixed with the swinging arms, and the swinging arms is the elasticity sheet metal and can float in the surface of water, and the circular slot has been seted up to installation base member side, and the circular slot is laid with first pivot is coaxial, is equipped with the wind spring in the circular slot, and the wind spring both ends are connected with circular slot inner wall and first pivot respectively. The swinging plate can rotate relative to the installation base body through the swinging rod, under the condition that the ship drives the floating plate to move at a high speed on the water surface, the tail end of the swinging plate can be kept above the water surface and continuously flaps the water surface, so that splashing spray and noise are formed to drive the air seabirds and the approach of large underwater organisms, the swinging plate is positioned at the edge of one side of the floating plate far away from the ship, the underwater collecting net can be well shielded, the situation that the temporary storage of the collecting net is discovered and predated during the sea bird flying process is facilitated, on one hand, the disabled and dead of the antarctic krill is avoided, on the other hand, the situation that the sea birds peck the collecting net to cause the temporary storage of the antarctic krill in the collecting net to escape is facilitated, the fishing quantity and the survival rate are guaranteed, and therefore economic loss is reduced, when the swinging rod drives the swinging plate to rotate on the first rotating shaft, the coil springs are driven to rotate through deformation, the swinging recovery speed of the swinging plates is accelerated, the evaluation rate of the swinging plate and the driving effect of birds and the underwater organisms is improved, and the buoyancy of the tail of the floating plate is facilitated.

Preferably, a plurality of auxiliary buoyancy members are fixed at the edge of the lower end face of the swinging plate, each auxiliary buoyancy member comprises a pontoon fixed with the swinging plate, arc grooves are formed in the curved wall of the pontoon at intervals in a surrounding mode, a second rotating shaft is connected between the two end faces of the pontoon in a rotating mode, and arc fan blades are arranged in the surrounding mode on the second rotating shaft. The sea surface air current is stronger, the air produces the air vibration in the flotation pontoon at the tiny arc groove of rethread, form wind to make an uproar to drive seabird and aquatic organism, when seabird dive swinging plate, the flotation pontoon partially sinks and gets into the water, outside water is surging into the inside arc flabellum of flotation pontoon through the arc groove and is producing centrifugal force through the pivot rotation in the flotation pontoon this moment, the water leaves the flotation pontoon and forms spaced ripple from the clip grass under centrifugal force effect in the flotation pontoon, the interference seabird is predatory to other organisms in the water, reduce the damage of seabird to the floating plate and collecting the net under water.

The invention adopts a plurality of trawl nets to carry out fishing, and realizes continuous suction of the fishing objects to the ship through the floating plate and the sorting assembly, thereby having the following beneficial effects: the link member rotates through the rotating blades to slow the flow, so that the water flow impact on the fishing object is reduced, and the rotating blades and the auxiliary plate rub to generate noise, thereby being beneficial to driving seabirds and test organisms and improving the capturing rate; the diversion component reduces lateral turbulence disturbance and improves the guiding effect of the trawl on fish and shrimp; the transverse opening of the capturing port is enlarged under the action of water flow, so that the capturing efficiency is improved; the auxiliary adjusting piece further improves the buffering capacity for turbulent flow, avoids the trawl shaking to enable the fish and the shrimp to collide and improve the disability rate and the death rate; the sorting assembly automatically screens out small shrimps and shellfish, protects ecological balance and reduces the capturing amount of euphausia superba; the connecting plate pieces between the floating plates limit the moving range of the floating plates and the collecting net, reduce the collision of euphausia superba, improve the survival rate, and simultaneously improve the capturing efficiency of the trawl on the fish and the shrimp in the appointed area; the bird repellent component repels birds and underwater organisms, shields the underwater collection net and prevents birds in the air from diving and predating. Therefore, the invention can realize continuous, high-efficiency and accurate fishing and prevent net explosion, and effectively protect the fishing objects in the fishing process.

Drawings

FIG. 1 is a schematic view of the overall position of the device;

FIG. 2 is a schematic side view of the device;

FIG. 3 is a schematic illustration of a link member;

FIG. 4 is a schematic view of a baffle;

FIG. 5 is a schematic diagram of a sorting assembly;

FIG. 6 is a schematic illustration of a link plate;

FIG. 7 is an enlarged schematic view of area A;

FIG. 8 is a schematic view of a bird repellent assembly;

FIG. 9 is a schematic view of a coil spring;

fig. 10 is a schematic diagram of a buoy.

Reference numerals: a link member 1; a base shaft 10; a first sleeve 11; a second sleeve 12; a rotary vane 13; an auxiliary lever 14; an auxiliary plate 15; a first rope 2; a diversion component 3; a deflector 30; a bending plate 31; a pontoon 32; a weight cylinder 33; a first through hole 34; a second through hole 35; a weight 36; a trawl 4; a capture port 40; a delivery port 41; an auxiliary adjusting member 5; an elastic cord 50; a float ball 51; a flexible floating plate 52; a sorting assembly 6; a protective housing 60; a tapered groove 61; a guide web 62; a lateral separation plate 63; a longitudinal separator plate 64; escape openings 65; a collection screen 66; a floating plate 7; a link plate 70; a clamping plate 71; a coil spring 72; a fish and shrimp screw pump 8; a delivery tube 80; a bird repellent assembly 9; a mounting base 90; a first rotation shaft 91; a swing lever 92; a swinging plate 93; a circular groove 94; a coil spring 95; an auxiliary buoyancy member 96; buoy 960; an arc-shaped groove 961; a second rotating shaft 962; arcuate blades 963.

Detailed Description

The technical scheme of the invention is further described in detail below with reference to the specific embodiments and the attached drawings:

it will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-2, multi-net bag type euphausia superba continuous pumping fishing, comprising: the ship comprises a connecting rod piece 1 connected with the tail of a ship, wherein the connecting rod piece 1 is fixedly provided with a plurality of first rope bodies 2, any one first rope body 2 is connected with a diversion assembly 3, the adjacent diversion assemblies 3 are connected with the same trawl 4, the trawl 4 comprises a capturing port 40 and a conveying port 41, a plurality of auxiliary adjusting pieces 5 which keep the capturing port 40 open are arranged in any diversion assembly 3, the conveying port 41 is fixedly connected with a sorting assembly 6, a floating plate 7 is connected above the sorting assembly 6, a fish and shrimp screw pump 8 is arranged on the floating plate 7, conveying pipes 80 are connected between the fish and shrimp screw pump 8 and the sorting assembly 6 as well as between the ship bodies, and bird driving assemblies 9 are symmetrically arranged on the upper end surfaces of the floating plate 7 at the edges.

When the ship sails, the link members 1 are dragged through the ropes, the link members 1 drive a plurality of trawls 4 to move in water and catch the euphausiids, the high-speed water flow acts on the guide assembly 3 to enable the guide assembly to help to increase the opening degree of the capturing port 40, the collection efficiency is improved, the whole overturning of the trawls 4 is prevented to cause loss of the captured matters, the sorting assembly 6 screens out organisms except the euphausiids and is put back into the sea, the balance of the ecological system is ensured, the screened euphausiids are continuously conveyed to the ship through the fish and shrimp screw pump 8 and the conveying pipe 80 to be collected, long-time continuous catching and net explosion prevention are realized, the floating plate 7 provides buoyancy for the pump body and the sorting assembly 6 below, the trawls 4 are prevented from being broken due to the submerged reef, the bird repelling assembly 9 shields the euphausiids temporarily stored under water, the caught birds are driven, the probability of the euphausiids being gnated is reduced, and economic losses are reduced.

Referring to fig. 3, the link member 1 includes a base shaft 10, a ship rope is connected to the base shaft 10 and the ship body, the base shaft 10 is rotatably connected with a plurality of first shaft sleeves 11, the base shaft 10 is fixed with a plurality of second shaft sleeves 12 positioned between adjacent first shaft sleeves 11, a rotary vane 13 is circumferentially arranged on any first shaft sleeve 11, an auxiliary rod 14 is fixed on any second shaft sleeve 12, and auxiliary plates 15 are arranged on both sides of the auxiliary rod 14.

The first shaft sleeves 11 drive the rotating blades 13 to freely rotate on the base shaft 10 so as to disturb the water surface, the impact of rapid water flow formed by ship advancing on the shrimp body in the collecting net 66 is reduced, the death rate and the residual limb rate of the antarctic krill are reduced, the economic value of the antarctic krill is improved, the rotating blades 13 are contacted and pressed to the auxiliary plate 15 to form friction vibration during rotation, large-scale meat fish shoals and organisms in water can be driven, birds above the device can be driven, the device is prevented from swallowing captured antarctic krill, the survival rate of antarctic krill in the trawl 4 is further improved, the economic loss is reduced, the ship staff can observe the water bloom size formed by the disturbance of the rotating blades 13 and the integral wading depth of the connecting rod piece 1 to judge the capture amount in the trawl 4, the speed of navigation is convenient to adjust in time, and the explosion net is avoided.

Referring to fig. 4, the flow guiding assembly 3 includes a flow guiding plate 30, the flow guiding plate 30 is a curved plate 31, the curved inner side of the flow guiding plate 30 is fixed with the curved plate 31, the curved plate 31 is respectively fixed with a pontoon 96032 and a counterweight barrel 33 at the upper and lower sides, a first through hole 34 is formed around the side wall of the counterweight barrel 33, a second through hole 35 is formed in the center of the axis of the counterweight barrel 33, and a counterweight piece 36 is arranged in the counterweight barrel 33.

The size of the opening of the capturing port 40 directly influences the capturing amount and the guiding effect on the captured objects in the towing process of the trawl 4, the flow velocity of the water flowing through the cambered surface on the inner side of the bending of the guide plate 30 is faster, the pressure received by the side is smaller, so that the guide plate 30 moves towards the outer side of the capturing port 40 under the action of the water pressure, the opening of the capturing port 40 is enlarged, the capturing amount and the guiding effect are further improved, the buoyancy of the guide plate 30 is provided by the pontoon 96032, the bottom gravity of the guide plate 30 is increased by the counterweight tube 33 through the counterweight piece 36 in the interior, the pontoon 96032 and the counterweight tube 33 are designed to be beneficial to the maintenance of the posture of the guide plate 30 in water, the adverse effect that the opening of the capturing port 40 is reduced due to the fact that the guide plate 30 is overturned after being impacted is avoided, water can circulate in the first through hole 34 and the second through hole 35 when passing through the counterweight barrel 33, so that tiny bubbles are formed on one side of the guide plate 30 and float upwards, large organisms on two sides of the trawl 4 are driven, economic losses are avoided due to the fact that the large organisms are close to fish and shrimp in the predatory trawl 4 and bite the trawl 4, when the trawl 4 is impacted by turbulent flow on the side of turbulence, the curved inner cambered surfaces of the guide plate 30 guide upwards and downwards respectively, impact force of the side water on the capturing port 40 is reduced, the guiding effect of the capturing port 40 on the fish and the shrimp is improved, and the capturing rate is improved.

The auxiliary adjusting member 5 comprises an elastic rope 50 fixed between a pontoon 96032 and the counterweight barrel 33, floating balls 51 are arranged on the elastic rope 50 at intervals, a flexible floating plate 752 is fixed on the adjacent floating balls 51, and the flexible floating plate 752 is a bending plate 31 and is opened towards the first rope body 2.

The water body contacts with the floating ball 51 when longitudinally flowing through the guide plate 30, the floating ball 51 increases the buoyancy of the guide plate 30, and the floating ball 51 swings through the elastic rope 50 after being impacted by the water body, so that the water flow impact is relieved, the shaking of the trawl 4 connected with the guide plate 30 is reduced, the fish and shrimp captured in the interior are protected, the residual limb rate and the death rate are reduced, the economic value is improved, the flexible floating plate 752 further improves the buoyancy of the guide plate 30, the vertically arranged flexible floating plate 752 improves the contact area with longitudinal water flow, the water resistance on one side of the curved cambered surface of the guide plate 30 is further improved, the guide plate 30 is driven to move towards the direction far away from the center of the capturing port 40 through the flexible floating plate 752, the opening of the capturing port 40 is further increased, and the capturing rate of the trawl 4 and the guiding effect of the fish and the shrimp are improved.

Referring to fig. 5, the sorting assembly 6 comprises a protective housing 60, a conical groove 61 is formed in the protective housing 60, a guide net 62 is arranged in the conical groove 61, a transverse separating plate 63 is arranged at the bottom of the protective housing 60 in a communicating manner, a longitudinal separating plate 64 is arranged in the conical groove 61, escape ports 65 communicated with the conical groove 61 are formed in two sides of the protective housing 60, one end of the protective housing 60 is connected with a conveying port 41, a collecting net 66 is arranged at the other end of the protective housing 60, and the collecting net 66 is connected with a fish and shrimp screw pump 8 through a conveying pipe 80.

The fish and shrimp in the collecting net 66 enter the tapered slot 61 in the protective shell 60 through the conveying port 41, the guiding net 62 guides the fishing matters to the transverse separating plate 63, under the action of high-speed movement of the ship body, the water body flows through the tapered slot 61 at a higher speed, the swimming capability of small fish, shellfish and shrimp is weaker, the fish and shrimp can pass through the transverse separating plate 63 and return to the water under the action of hydrodynamic force, the large fish and crab with crawling capability can leave the protective shell 60 from the escape port 65 at the side and return to the water after being blocked by the longitudinal separating plate 64, and the rest euphausia superba in the fishing matters can enter the collecting net 66 through the gap of the longitudinal separating plate 64, so that the possibility that the capturing quantity of the euphausia superba is low due to the fact that too much fishing matters fill the collecting net 66 is reduced, on the other hand, the automatic screening and the releasing are realized in the capturing process, the probability that the collecting net 66 bursts the net is reduced, meanwhile the biological diversity of the ecological system in the water is protected, the capturing efficiency of the euphausia superb is improved, and the capturing cost is saved.

Referring to fig. 6 to 7, a link member 70 is provided between adjacent floating plates 7, the link member 70 including clamping plates 71 fixed to upper and lower end surfaces of the floating plates 7, and a coil spring 72 is fixed between the adjacent clamping plates 71.

Adjacent floating plates 7 are close to or far away from each other after being impacted by a water body when the water surface slides, and then the spiral springs 72 are extruded or stretched through the connecting plates, the spiral springs 72 prevent the floating plates 7 from being close to each other and deviating from each other through deformation, on one hand, the moving range of the trawl 4 is limited by limiting the floating plates 7, the trawl 4 is prevented from being excessively far away from a preset fishing area to be fished, the fishing efficiency is low, on the other hand, the phenomenon that the collecting net 66 below the floating plates 7 is mutually impacted to cause broken limbs and death of euphausiids is avoided, so that economic loss is reduced, when the collecting amount in the collecting net 66 is too large, the floating plates 7 connected above can be driven to sink, the adjacent floating plates 7 can share the downward pulling force received by the sinking plates 7 through the clamping plates 71 and the spiral springs 72, the risk of sinking of the single-side floating plates 7 is reduced, and therefore the euphausiid spiral pump 8 is enabled to normally convey the euphausiid to the ship above the water surface, and the efficiency of continuously pumping the euphausiid is favorable for guaranteeing.

Referring to fig. 8-9, the bird repellent assembly 9 comprises a mounting base 90 fixed on the upper end surface of the floating plate 7, a first rotating shaft 91 is rotationally connected to the mounting base 90, a swinging rod 92 is fixed to the first rotating shaft 91, a swinging plate is fixed to the tail end of the swinging rod 92, the swinging plate is an elastic thin plate and can float on the water surface, a round groove 94 is formed in the side of the mounting base 90, the round groove 94 and the first rotating shaft 91 are coaxially arranged, a coil spring 95 is arranged in the round groove 94, and two ends of the coil spring 95 are respectively connected with the inner wall of the round groove 94 and the first rotating shaft 91.

The swinging plate can rotate relative to the installation base body 90 through the swinging rod 92, under the condition that the ship drives the floating plate 7 to move at a high speed on the water surface, the tail end of the swinging plate can be kept above the water surface and continuously beats the water surface, so that splashing spray and noise are formed to drive the air seabirds and the approach of large underwater organisms, the swinging plate is positioned at the edge of one side of the floating plate 7 away from the ship, good shielding can be formed on the underwater collecting net 66, the situation that the temporary-stored antarctic krill in the collecting net 66 is found and predated in the sea bird flying process is facilitated to be reduced, on one hand, the antarctic krill is prevented from being disabled, on the other hand, the situation that the collection net 66 is broken by the sea birds to cause the temporary-stored antarctic krill in the collecting net 66 to escape is facilitated to be ensured, the fishing quantity and the survival rate are reduced, and the economic loss is reduced, when the swinging rod 92 is driven to rotate on the first rotating shaft 91, the coil spring 95 is driven to rotate, the swinging recovery speed of the swinging plate is accelerated through deformation, the evaluation rate of the swinging plate and the water surface are increased, the bird driving effect on the birds and the organisms is improved, on the tail buoyancy of the fish pump is facilitated, and the effective spiral pump 8 is pumped under the water.

Referring to fig. 10, a plurality of auxiliary buoyancy members 96 are fixed at the edge of the lower end surface of the swing plate, the auxiliary buoyancy members 96 comprise pontoons 96032 fixed with the swing plate, arc grooves 961 are formed on the curved walls of the pontoons 96032 at intervals in a surrounding manner, a second rotating shaft 962 is rotatably connected between the two end surfaces of the pontoons 96032, and arc blades 963 are arranged on the second rotating shaft 962 in a surrounding manner. The sea surface air current is stronger, the air produces the air vibration in flotation pontoon 96032 at the tiny arc wall 961 of rethread, form wind to make an uproar to drive seabird and aquatic organism, when the seabird dives the swing board, flotation pontoon 96032 part sinks and gets into the water, outside water is surging into the inside arc flabellum 963 of flotation pontoon 96032 through arc wall 961 at this moment and is producing centrifugal force through the pivot rotation in flotation pontoon 96032, the water leaves flotation pontoon 96032 and forms the ripple of interval under the centrifugal force effect in flotation pontoon 96032, the interference seabird prees other organisms in the water, reduce the damage of seabird to floating plate 7 and collection net 66 under water.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. Multi-net bag type euphausia superba continuous pumping fishing device comprises: the connecting rod piece (1) is connected with the tail of the ship, the connecting rod piece (1) is fixedly provided with a plurality of first rope bodies (2), any one of the first rope bodies (2) is connected with a diversion component (3), the adjacent diversion component (3) is connected with the same trawl (4),

the method is characterized in that: the trawl (4) comprises a capturing port (40) and a conveying port (41), wherein a plurality of auxiliary adjusting pieces (5) which keep the capturing port (40) open are arranged in any one of the flow guide assemblies (3), the conveying port (41) is fixedly connected with a sorting assembly (6), a floating plate (7) is connected above the sorting assembly (6), a fish and shrimp screw pump (8) is arranged on the floating plate (7), conveying pipes (80) are respectively connected between the fish and shrimp screw pump (8) and the sorting assembly (6) and between the ship bodies,

wherein, the upper end surface of the floating plate (7) is symmetrically provided with bird-expelling components (9) at the edge,

the flow guide assembly (3) comprises a flow guide plate (30), the flow guide plate (30) is a bent plate, the bent plate (31) is fixed on the inner side of the bending of the flow guide plate (30), a pontoon (32) and a counterweight cylinder (33) are respectively fixed above and below the bent plate (31), a first through hole (34) is formed in the side wall of the counterweight cylinder (33) in a surrounding manner, a second through hole (35) is formed in the center of the axis of the counterweight cylinder (33), a counterweight piece (36) is arranged in the counterweight cylinder (33),

the auxiliary adjusting piece (5) comprises an elastic rope (50) fixed between the pontoon (32) and the counterweight barrel (33), floating balls (51) are arranged on the elastic rope (50) at intervals, flexible floating plates (52) are fixed adjacent to the floating balls (51), the flexible floating plates (52) are bent plates and open towards the first rope body (2),

sorting subassembly (6) are including protecting sheathing (60), conical groove (61) has been seted up to protecting sheathing (60) inside, be provided with guide net (62) in conical groove (61), protecting sheathing (60) bottom intercommunication is provided with transverse separation board (63), be equipped with longitudinal separation board (64) in conical groove (61), protecting sheathing (60) both sides be equipped with escape opening (65) of conical groove (61) intercommunication, protecting sheathing (60) one end with delivery port (41) are connected, and the other end is provided with collection net (66), collection net (66) with fish and shrimp screw pump (8) are passed through conveyer pipe (80) are connected.

2. A multi-net sac type antarctic krill continuous pumping fishing device as claimed in claim 1, wherein: the connecting rod piece (1) comprises a base shaft (10), the base shaft (10) is connected with a ship body through a rope, the base shaft (10) is rotationally connected with a plurality of first shaft sleeves (11), the base shaft (10) is fixedly provided with a plurality of second shaft sleeves (12) which are positioned between the adjacent first shaft sleeves (11), rotary blades (13) are circumferentially arranged on any one of the first shaft sleeves (11), an auxiliary rod (14) is fixedly arranged on any one of the second shaft sleeves (12), and auxiliary plates (15) are arranged on two sides of the auxiliary rod (14).

3. A multi-net sac type antarctic krill continuous pumping fishing device as claimed in claim 1, wherein: be provided with link plate (70) between adjacent kickboard (7), link plate (70) are including being fixed in splint (71) of kickboard (7) up and down terminal surface, adjacent be fixed with coil spring (72) between splint (71).

4. A multi-net sac type antarctic krill continuous pumping fishing device as claimed in claim 1, wherein: the bird repellent assembly (9) is fixed in including being fixed in installation base member (90) of kickboard (7) up end, installation base member (90) internal rotation is connected with first pivot (91), first pivot (91) are fixed with swinging arms (92), swinging arms (92) end-to-end is fixed with swinging arms (93), swinging arms (93) are elastic sheet and can float in the surface of water, circular slot (94) have been seted up to installation base member (90) side, circular slot (94) with first pivot (91) coaxial layout is equipped with wind spring (95) in circular slot (94), wind spring (95) both ends respectively with circular slot (94) inner wall with first pivot (91) are connected.

5. A multi-net sac type antarctic krill continuous pumping fishing device as claimed in claim 4, wherein: the utility model discloses a buoyancy device, including swinging plate (93) up, the terminal surface border department is fixed with a plurality of supplementary buoyancy piece (96), supplementary buoyancy piece (96) include with pontoon (960) that swinging plate (93) are fixed, interval and encircle on the curved surface wall of pontoon (960) offer arc wall (961), rotate between pontoon (960) both ends face and be connected with second pivot (962), encircle on second pivot (962) and have set up arc flabellum (963).