CN110754407B - Culture net cage - Google Patents

Culture net cage Download PDF

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Publication number
CN110754407B
CN110754407B CN201911222353.5A CN201911222353A CN110754407B CN 110754407 B CN110754407 B CN 110754407B CN 201911222353 A CN201911222353 A CN 201911222353A CN 110754407 B CN110754407 B CN 110754407B
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China
Prior art keywords
pipe
net cage
cylinder
air inlet
bait
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CN201911222353.5A
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CN110754407A (en
Inventor
刘志强
牟毅
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Zhejiang Ocean University ZJOU
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Zhejiang Ocean University ZJOU
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Priority to CN201911222353.5A priority Critical patent/CN110754407B/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • A01K61/60Floating cultivation devices, e.g. rafts or floating fish-farms
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • A01K61/80Feeding devices
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

The invention belongs to the technical field of cage culture, and relates to a culture cage. The invention comprises a culture net cage, wherein the culture net cage comprises an upper supporting floating frame and a lower supporting frame fixed on the sea bottom, a plurality of cylinder shells are arranged between the upper supporting floating frame and the lower supporting frame, telescopic pieces which slide up and down are arranged in each cylinder shell, the upper ends of the telescopic pieces extend out of the top of the cylinder shells, the end parts of the telescopic pieces are hinged to the upper supporting floating frame, and the lower ends of the telescopic pieces are arranged in the cylinder shells in a sliding manner; the bottom of the cultivation net cage is provided with a bait recycling net, the bait recycling net is connected to each cylinder shell through a rod, one end of the rod penetrates through a through groove formed in each cylinder shell, the end of the rod is fixedly connected to a transmission mechanism below the telescopic piece, and the other end of the rod is hinged to a cage body in the cultivation net cage; when the telescopic piece slides up and down, the telescopic piece drives the bait collecting mechanism to synchronously and reversely move through the transmission mechanism. The invention has the advantages that: and collecting and reusing the baits on the bottom of the culture net cage.

Description

Culture net cage
Technical Field
The invention belongs to the technical field of cage culture, and relates to a culture cage.
Background
Because the cage culture has the advantages of low cost, high yield, convenient management, high recapture rate and the like, the cage culture rapidly develops in coastal areas in recent years.
One type of culture net cage mainly comprises an annular supporting floating frame, a culture net cage and a fixing device, wherein the annular supporting floating frame floats on the sea surface; the upper end of the culture net cage is provided with an opening, the edge of the upper end opening of the culture net cage is fixed on the annular floating frame, and the bottom of the culture net cage is lowered to a depth limited by the water by utilizing the gravity of the culture net cage; the fixing device comprises a plurality of counterweights which are settled to the seabed and a fixing inhaul cable which is used for connecting the counterweights with the annular supporting floating frame and is used for fixing the annular supporting floating frame. In the cage culture process, since the feeding adopts the way of directly throwing the baits into the culture cage, the feeding way throws the baits into the culture cage in a large amount at one time, and the following defects exist: because the bait is intensively put in one time, a large amount of bait is not eaten by fishes in the culture net box and sinks to pass through the culture net box, so that the bait is seriously wasted, a large amount of residual bait is deposited on the sea floor, the marine geological environment is influenced, and the problem that the marine geological environment presents eutrophication trend is caused.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a culture net cage, which aims to solve the technical problems that: how to collect and reuse the baits on the bottom of the cultivation net cage.
The invention is realized by the following technical scheme: a culture net cage, includes the culture net cage, the culture net cage includes upper bracket float and fixes the lower carriage at the seabed, and still includes:
The cylinder shells are arranged between the upper supporting floating frame and the lower supporting frame; a telescopic piece which slides up and down is arranged in each cylinder shell, the upper end of the telescopic piece extends out of the top of the cylinder shell, the end part of the telescopic piece is hinged on the upper supporting floating frame, and the lower end of the telescopic piece is arranged in the cylinder shell in a sliding manner;
An annular bait recycling net arranged on the bottom of the culture net cage; the bait recycling net is connected to each cylinder shell through a rod, one end of the rod penetrates through a strip-shaped through groove formed in the inner side of each cylinder shell, the end of the rod is fixedly connected to a transmission mechanism below the telescopic piece, and the other end of the rod is hinged to a box body in the aquaculture net box; when the telescopic piece slides up and down, the telescopic piece drives the bait collecting mechanism to synchronously and reversely move through the transmission mechanism.
In the cultivation net cage, the telescopic piece comprises a sliding block connecting rod and a sliding block which is arranged in the cylinder shell in a sliding manner; the upper end of the slide block connecting rod extends out of the top of the cylinder shell, the end part of the slide block connecting rod is hinged to the upper supporting floating frame, and the lower end of the slide block connecting rod is fixedly connected to the slide block; a drainage tank is arranged in the culture net cage; a drainage box connecting rod is arranged between the drainage box and each sliding block; one end of the drainage box connecting rod penetrates through the through groove, the end of the drainage box connecting rod is fixedly connected to the sliding block, and the other end of the drainage box connecting rod is hinged to the drainage box; the tank body is a water inlet tank positioned below the drainage tank; a corrugated pipe is arranged between the water inlet tank and the water outlet tank; the upper edge of the corrugated pipe is fixedly connected to the periphery of the opening on the lower side surface of the drainage tank, and the lower edge of the corrugated pipe is fixedly connected to the periphery of the opening on the upper side surface of the water inlet tank; a plurality of first nozzles are connected on the lower side surface of the drainage box around the corrugated pipe; the water inlet tank is connected with a water inlet pipe, and a water inlet one-way valve is arranged on the water inlet pipe.
In the culture net cage, the drainage box is also connected with a plurality of drainage pipes; one end of each drain pipe is communicated with the inside of the drain box, and the other end of each drain pipe is connected with a second nozzle; each of the second nozzles faces the first netting disposed on the adjacent two cylinder housings.
In the cultivation net cage, a second net is arranged between the top of the cylindrical shell and the upper supporting floating frame.
In the culture net cage, the transmission mechanism comprises a rotating shaft rotatably arranged on the inner wall of the cylinder shell, and the axis of the rotating shaft is perpendicular to the axis of the cylinder shell; a first gear and a second gear are coaxially and fixedly arranged on the rotating shaft respectively; the first gear and the second gear are respectively connected with an upper rack and a lower rack which are arranged in the cylinder shell in a sliding manner in a meshed manner; the upper rack and the lower rack are respectively positioned at two sides of the rotating shaft; the upper end of the upper rack is fixedly arranged on the sliding block, and the lower end of the upper rack is suspended; the two ends of the lower rack are respectively suspended, and the lower rack is fixedly connected with a rod connected with a bait recovery net.
In the cultivation net cage, the number of teeth of the first gear is smaller than the number of teeth of the second gear.
In the cultivation net cage, the slide block is provided with the notch right above the lower rack, and the size of the cross section of the notch is larger than that of the cross section of the lower rack.
In the culture net cage, the upper supporting floating frame is hinged with a floating body; the cylinder shell is fixedly provided with an air cylinder, a piston is slidably arranged in the air cylinder, and a piston rod is fixedly arranged on the piston; the upper end of the piston rod extends out of the top of the air cylinder, the end part of the piston rod is hinged to the floating body, and the lower end of the piston rod is fixedly arranged on the piston; the inflator is respectively connected with an air inlet pipe and an air outlet pipe; a connecting hose is connected between the floating body and the air inlet pipe, the upper end of the connecting hose is connected with a vent pipe arranged on the upper side surface of the floating body, and the lower end of the connecting hose is connected with the air inlet pipe; one end of the exhaust pipe is communicated with the inside of the air cylinder, and the other end of the exhaust pipe stretches into the culture net cage.
In the culture net cage, the piston divides the interior of the air cylinder into an upper air cavity and a lower air cavity; the air inlet pipe comprises an upper air inlet pipe and a lower air inlet pipe; one end of the upper air inlet pipe is respectively communicated with the lower end of the connecting hose and the upper end of the lower air inlet pipe through a three-way pipe, and the other end of the upper air inlet pipe is communicated with the upper air cavity; an upper air inlet check valve is arranged on the upper air inlet pipe; the lower end of the lower air inlet pipe is communicated with a lower air cavity, and a lower air inlet check valve is arranged on the lower air inlet pipe; the exhaust pipe comprises an upper exhaust pipe and a lower exhaust pipe; one end of the upper exhaust pipe is communicated with the upper air cavity, the other end of the upper exhaust pipe is positioned below the bottom of the cultivation net cage, and an upper exhaust check valve is arranged on the upper exhaust pipe; one end of the lower exhaust pipe is communicated with the lower air cavity, and the other end of the lower exhaust pipe extends into the middle of the culture net cage; the lower exhaust pipe is provided with a lower exhaust pipe one-way valve.
In the above cultivation net cage, the ventilation pipe is a U-shaped pipe.
Compared with the prior art, the culture net cage has the following advantages:
1. When the sea water level rises, the upper supporting floating frame synchronously rises by virtue of buoyancy and drives the telescopic piece to slide upwards; the telescopic piece drives the water inlet tank connecting rod and the bait recycling net to synchronously move downwards through the transmission mechanism, so that the bait is recycled and falls to the bottom of the culture net tank for collecting the baits which are not eaten. When the sea water level descends, the upper support floating frame descends along with the sea water by means of self gravity and always floats on the sea water surface. At this time, the upper supporting floating frame drives the telescopic piece to slide downwards, and the telescopic piece drives the water inlet tank connecting rod and the bait recycling net to synchronously move upwards through the transmission mechanism, so that the bait recycling net ascends, and the bait on the bait recycling net is convenient for fishes to eat.
The upper support floating frame always floats on the sea water surface, so the upper support floating frame is also always influenced by waves. The wave drives the upper supporting floating frame to continuously float. When the upper support floating frame moves up and down, the telescopic piece drives the bait recycling net to move up and down through the transmission mechanism, and the wave energy drives the upper support floating frame to float up and down by a distance far smaller than the distance of floating up and down caused by tidal energy, namely the bait recycling net moves up and down by a small amplitude. The bait on the bait recovery net floats above the bait recovery net all the time, so that the bait is convenient for fish to eat, and the net holes of the bait recovery net are prevented from being blocked by the bait.
The cultivation net cage converts tidal energy and wave energy into mechanical energy of upward and downward movement on the bait recycling net, and improves the utilization rate of green energy. Meanwhile, the bait recycling net can be used for re-eating the collected bait for the fish, so that the eating rate of the bait is improved, and the marine pollution is reduced.
2. In the process of fish lifting, a large amount of fish is often gathered at the bottom of the culture net cage, and the bottom of the culture net cage is positioned at a deep water level on the sea floor, so that the fish lifting difficulty is greatly increased, and the fish in the culture net cage is not easy to capture. When the fish is lifted, the weight of the upper floating support frame is increased, so that the weight of the upper floating support frame is larger than the total buoyancy generated by the upper floating support frame, the upper floating support frame descends at the moment, the integral gravity center of the culture net cage is lowered, and the stability of the culture net cage is improved. Meanwhile, the telescopic piece drives the bait recycling net to rise through the transmission mechanism. Because the mesh of the bait recovery net is smaller than the size of the adult fish, the fish rises along with the bait recovery net, thereby improving the height of the fish and facilitating the capturing of the fish in the culture net cage.
3. The upper support floating frame drives the slider connecting rod to move up and down, and the slider connecting rod drives the slider. The slide block drives the drainage box to move up and down through the drainage box connecting rod; meanwhile, the water inlet tank moves in the synchronous direction through the water inlet tank connecting rod. Thereby compressing and stretching the bellows and causing the volume of the bellows to change. When the corrugated pipe is compressed, the volume is reduced, seawater is sprayed out from the first nozzle, the sprayed seawater causes the change of surrounding water flow and simultaneously impacts the bait, so that the bait is diffused to the periphery, and the bait eating rate is improved.
4. When the corrugated pipe is compressed, the volume is reduced, seawater is sprayed out from the first nozzle and the second nozzle simultaneously, and the second nozzle flushes the first netting to remove attachments on the first netting.
5. Because the rotating speeds of the first gear and the second gear are the same, the sliding speed of the lower rack driven by the second gear is greater than that of the upper rack. Therefore, the distance of the movement of the lower rack driven by the second gear is greater than that of the movement of the upper rack. The structure effectively improves the distance of the up-and-down movement of the bait collecting net.
6. When the piston moves downwards, the volume of the upper air cavity is enlarged, and the volume of the lower air cavity is reduced. At this time, the external air flows into the upper air cavity through the upper air inlet pipe, and the air in the lower air cavity is discharged into the middle part of the culture net cage through the lower air outlet pipe. When the piston moves upwards, the volume of the upper air cavity is reduced, and the volume of the lower air cavity is enlarged. At this time, the external air flows into the lower air cavity through the lower air inlet pipe, and the air in the upper air cavity is discharged from the lower part of the culture net cage through the upper exhaust pipe. The structure effectively improves the oxygen content of the seawater in the culture net cage. In addition, the depth of the discharge end of the upper exhaust pipe is greater than the depth of the discharge end of the lower exhaust pipe, which makes the pressure of the gas in the upper gas chamber greater than the pressure of the gas in the lower gas chamber. Thus, the resistance that the piston needs to overcome when sliding upward is greater than the resistance that the piston needs to overcome when sliding downward. This structure helps to overcome the problem that the floating body is light in weight and is difficult to drive the piston to slide downwards.
Drawings
FIG. 1 is a schematic view of the structure of the invention when the sea water level is high.
Fig. 2 is a schematic view of the structure of the present invention when the sea water level is low.
Fig. 3 is a cross-sectional view of the structure at A-A in fig. 1.
Fig. 4 is a cross-sectional view of the structure at B-B in fig. 2.
Fig. 5 is an enlarged view of the structure at C in fig. 1.
In the figure, 1, a culture net cage; 11. an upper support floating frame; 12. a lower support frame; 121. an anchor; 122. an anchor link; 13. a first netting; 14. a second netting; 2. a cylindrical housing; 21. a slide block; 211. a notch; 22. a slider connecting rod; 23. a through groove; 3. a drain tank; 31. a drainage box connecting rod; 32. a first nozzle; 33. a bellows; 34. a drain pipe; 35. a second nozzle; 4. a water inlet tank; 41. a water inlet tank connecting rod; 42. a bait recovery net; 43. a water inlet pipe; 44. a water inlet one-way valve; 5. an air cylinder; 51. a piston; 52. a piston rod; 521. a piston rod connecting rod; 53. an upper air cavity; 54. a lower air cavity; 55. an upper air inlet pipe; 551. an upper air inlet check valve; 56. an upper exhaust pipe; 561. an upper exhaust check valve; 57. a lower air inlet pipe; 571. a lower air inlet check valve; 58. a lower exhaust pipe; 581. a lower exhaust pipe one-way valve; 6. a floating body; 61. a U-shaped tube; 62. a connecting hose; 7. a rotating shaft; 71. a first gear; 72. a second gear; 73. a lower rack; 74. and (5) a rack is arranged.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Referring to fig. 1 to 5, a farming net cage, comprising a farming net cage 1, wherein the farming net cage 1 comprises an upper support floating frame 11 and a lower support frame 12, wherein the lower support frame 12 is connected with an anchor 121 via an anchor connecting rod 122, and the lower support frame 12 is fixed on the sea floor via the anchor connecting rod 122 and the anchor 121, and further comprising:
4-8 cylinder shells 2, wherein each cylinder shell 2 is arranged between an upper supporting floating frame 11 and a lower supporting frame 12; a telescopic piece which slides up and down is arranged in each cylinder shell 2, the upper end of the telescopic piece extends out of the top of the cylinder shell 2, the end part of the telescopic piece is hinged on the upper supporting floating frame 11, and the lower end of the telescopic piece is arranged in the cylinder shell 2 in a sliding manner;
an annular bait recovery net 42 provided on the bottom of the cultivation cage 1; the bait recycling net 42 is connected to each cylinder shell 2 through a rod, one end of the rod passes through a strip-shaped through groove 23 formed on the inner side of the cylinder shell 2, the end part of the rod is fixedly connected to a transmission mechanism positioned below the telescopic piece, the other end of the rod is hinged to a box body positioned in the aquaculture net cage 1, and the rod is a water inlet box connecting rod 41; when the telescopic piece slides up and down, the telescopic piece drives the bait collecting mechanism to synchronously and reversely move through the transmission mechanism.
The upper support floating frame 11 floats on the seawater surface by means of buoyancy. Under the action of the upper supporting floating frame 11, the culture net cage 1 integrally floats in seawater. Under the influence of the tide, the sea water level will change. When the sea water level rises, the upper supporting floating frame 11 synchronously rises by virtue of buoyancy and drives the telescopic piece to slide upwards; the telescopic piece drives the water inlet tank connecting rod 41 and the bait recycling net 42 to synchronously move downwards through the transmission mechanism, so that the bait recycling net 42 descends to the bottom of the culture net cage 1 for collecting the baits which are not eaten. When the sea water level falls, the upper support floating frame 11 falls with the sea water by means of its own weight and always floats on the sea water surface. At this time, the upper supporting floating frame 11 drives the telescopic member to slide downwards, and the telescopic member drives the water inlet tank connecting rod 41 and the bait recycling net 42 to synchronously move upwards through the transmission mechanism, so that the bait recycling net 42 ascends, and the fishes can eat the baits on the bait recycling net 42 conveniently.
The upper supporting floating frame 11 always floats on the sea water surface, and thus the upper supporting floating frame 11 is also always affected by waves. The wave drives the upper supporting floating frame 11 to continuously float. When the upper support floating frame 11 moves up and down, the telescopic member drives the bait recycling net 42 to move up and down through the transmission mechanism, and the wave energy drives the upper support floating frame 11 to float up and down by a distance far smaller than that caused by tidal energy, namely, the bait recycling net 42 moves up and down by a small amplitude. This allows the bait on the bait recovery net 42 to float above the bait recovery net 42 at all times, thereby facilitating the eating of the fish and avoiding the blockage of the net holes of the bait recovery net 42 by the bait.
The cultivation net cage converts tidal energy and wave energy into mechanical energy of the up-and-down movement of the bait recycling net 42, and the utilization rate of green energy is improved. Meanwhile, the bait recycling net 42 can be used for re-eating the collected bait for the fish, so that the eating rate of the bait is improved, and the marine pollution is reduced.
In addition, during the fish lifting process, a large amount of fish tends to gather at the bottom of the culture net cage 1, and the bottom of the culture net cage 1 is positioned at a deep water level on the sea floor, so that the fish lifting difficulty is greatly increased, and the fish in the culture net cage 1 is not easy to capture. When the fish lifting of the culture net cage starts, the weight of the upper floating support frame 11 is increased, so that the weight of the upper floating support frame 11 is larger than the total buoyancy generated by the upper floating support frame 11, at the moment, the upper floating support frame 11 descends, the integral gravity center of the culture net cage 1 is lowered, and the stability of the culture net cage 1 is improved. At the same time, the telescopic member drives the bait recovery net 42 to rise via the transmission mechanism. Because the mesh of the bait recovery net 42 is smaller than the size of the adult fish, the fish rises along with the bait recovery net 42, thereby increasing the height of the fish and facilitating the capturing of the fish in the aquaculture net cage 1.
Further, the bait recycling net 42 is in a truncated cone shape with a large upper part and a small lower part.
This structure facilitates concentration of the bait in the middle position of the bait recovery net 42, contributing to an improvement in the eating rate of the bait.
Specifically, the telescopic member includes a slider link 22 and a slider 21 slidably disposed within the cylinder housing 2; the upper end of the slide block connecting rod 22 extends out of the top of the cylinder shell 2, the end part of the slide block connecting rod is hinged to the upper supporting floating frame 11, and the lower end of the slide block connecting rod is fixedly connected to the slide block 21; a drainage tank 3 is arranged in the culture net cage 1; a drain tank connecting rod 31 is arranged between the drain tank 3 and each slide block 21; one end of the drain box connecting rod 31 passes through the through groove 23, the end part of the drain box connecting rod is fixedly connected to the sliding block 21, and the other end of the drain box connecting rod is hinged to the drain box 3; the tank body is a water inlet tank 4 positioned below the drainage tank 3; a corrugated pipe 33 is arranged between the water inlet tank 4 and the water outlet tank 3; the upper edge of the corrugated pipe 33 is fixedly connected to the periphery of the opening on the lower side surface of the drainage tank 3, and the lower edge of the corrugated pipe is fixedly connected to the periphery of the opening on the upper side surface of the water inlet tank 4; a plurality of first nozzles 32 are connected on the lower side surface of the drain tank 3 around a corrugated pipe 33; the water inlet tank 4 is connected with a water inlet pipe 43, and the water inlet pipe 43 is provided with a water inlet one-way valve 44.
The upper supporting floating frame 11 drives the slider connecting rod 22 to move up and down, and the slider connecting rod 22 drives the slider 21. The slide block 21 drives the drain tank 3 to move up and down through the drain tank connecting rod 31; while the inlet tank 4 moves in a synchronous direction via the inlet tank link 41. Thereby compressing and stretching the bellows 33 to change the volume of the bellows 33. When the bellows 33 is compressed, the volume becomes small, seawater is sprayed from the first nozzle 32, and the sprayed seawater causes a change in the surrounding water flow and simultaneously impacts the bait, thereby spreading the bait around, and contributing to an improvement in the bait eating rate.
When the bellows 33 is stretched, the volume becomes large and seawater flows from the inlet pipe 43 into the water tank 4. This construction makes it easier for seawater to enter the intake tank 4 and for seawater to be ejected from the first nozzle 32, since the depth of the lower end of the intake pipe 43 is greater than that of the first nozzle 32.
Specifically, the drain box 3 is also connected with a plurality of drain pipes 34; one end of each drain pipe 34 is communicated with the inside of the drain box 3, and the other end is connected with a second nozzle 35; each of the second nozzles 35 is directed toward the first netting 13 provided on the adjacent two cylinder housings 2.
When the bellows 33 is compressed, the volume is reduced, seawater is sprayed out from the first nozzle 32 and the second nozzle 35 simultaneously, the second nozzle 35 washes the first netting 13, and attachments on the first netting 13 are removed; the seawater sprayed from the first nozzle 32 spreads the bait to the periphery, thereby contributing to the improvement of the bait eating rate.
Specifically, a second netting 14 is arranged between the top of the cylinder housing 2 and the upper support floating frame 11.
When the upper supporting floating frame 11 floats, the second netting 14 stretches and contracts, but always encloses the upper layer of the cultivation cage 1, and the structure prevents the fish from escaping from the cultivation cage 1.
Specifically, the transmission mechanism comprises a rotating shaft 7 rotatably arranged on the inner wall of the cylinder shell 2, and the axis of the rotating shaft 7 is perpendicular to the axis of the cylinder shell 2; a first gear 71 and a second gear 72 are coaxially and fixedly arranged on the rotating shaft 7 respectively; the first gear 71 and the second gear 72 are respectively connected with an upper rack 74 and a lower rack 73 which are arranged in the cylinder shell 2 in a sliding way in a meshed manner; the upper rack 74 and the lower rack 73 are respectively positioned at two sides of the rotating shaft 7; the upper end of the upper rack 74 is fixedly arranged on the sliding block 21, and the lower end of the upper rack is suspended; the two ends of the lower rack 73 are respectively suspended, and the lower rack 73 is fixedly connected with one end of the water inlet tank connecting rod 41.
When the slider 21 slides up and down, the slider 21 drives the upper rack 74, and the upper rack 74 drives the first gear 71 to rotate. The first gear 71 drives the second gear 72 to rotate through the rotating shaft 7. The second gear 72 drives the lower rack 73 to synchronously and reversely slide, and the lower rack 73 drives the bait collecting net 42 and the water inlet tank 4 to synchronously move through the water inlet tank connecting rod 41.
Specifically, the number of teeth of the first gear 71 is smaller than the number of teeth of the second gear 72.
Since the rotation speeds of the first gear 71 and the second gear 72 are the same, the speed at which the lower rack 73 slides by the second gear 72 is greater than the speed at which the upper rack 74 slides. The distance that the second gear 72 moves the lower rack 73 is greater than the distance that the upper rack 74 moves. This structure effectively increases the distance of the upward and downward movement of the bait collecting net 42.
Specifically, the slide block 21 is provided with a notch 211 directly above the lower rack 73, and the size of the cross section of the notch 211 is larger than that of the cross section of the lower rack 73.
During the upward sliding of the lower rack 73, the upper end of the lower rack 73 passes through the notch 211 and protrudes above the slider 21. This structure prevents the lower rack 73 from being caught by the slider 21 when sliding upward.
Specifically, the upper supporting floating frame 11 is hinged with a floating body 6; the cylinder shell 2 is fixedly provided with a cylinder 5, a piston 51 is slidably arranged in the cylinder 5, and a piston rod 52 is fixedly arranged on the piston 51; the upper end of the piston rod 52 extends out of the top of the air cylinder 5, the end part of the piston rod 52 is hinged on the floating body 6 through a piston rod connecting rod 521, and the lower end of the piston rod is fixedly arranged on the piston 51; the inflator 5 is respectively connected with an air inlet pipe and an air outlet pipe; a connecting hose 62 is connected between the floating body 6 and the air inlet pipe, the upper end of the connecting hose 62 is connected with an air pipe arranged on the upper side surface of the floating body 6, and the lower end of the connecting hose is connected with the air inlet pipe; one end of the exhaust pipe is communicated with the inside of the air cylinder 5, and the other end of the exhaust pipe extends into the culture net cage 1.
When the floating body 6 floats up and down, the floating body 6 drives the piston rod 52 to move up and down through the piston rod connecting rod 521, and the piston rod 52 drives the piston 51. The piston 51 slides up and down, so that the volume of the air cavity divided by the air cylinder 5 is changed at any time, and external air is sucked into the air cylinder 5 through the air inlet pipe and is discharged into the culture net cage 1 through the air outlet pipe, so that the oxygen content in the culture net cage 1 is increased.
The floating up and down of the floating body 6 consists of two main aspects: under the action of the tide, the upper supporting floating frame 11 floats up and down along with the sea water level, and the upper supporting floating frame 11 drives the floating body 6 at the same time, so that the piston 51 is driven to move up and down, and the buoyancy and the gravity of the upper supporting floating frame 11 are mainly relied on in the process, so that the tide energy is fully utilized; under the action of the waves, the floating body 6 floats up and down around the hinge point, so that the piston 51 moves up and down, the process mainly converts the wave energy into mechanical energy for the up and down movement of the piston 51, and the wave energy is fully utilized.
Specifically, the piston 51 divides the interior of the cartridge 5 into an upper air chamber 53 and a lower air chamber 54; the air intake pipe includes an upper air intake pipe 55 and a lower air intake pipe 57; one end of the upper air inlet pipe 55 is respectively communicated with the lower end of the connecting hose 62 and the upper end of the lower air inlet pipe 57 through a three-way pipe, and the other end of the upper air inlet pipe is communicated with the upper air cavity 53; an upper air inlet check valve 551 is arranged on the upper air inlet pipe 55; the lower end of the lower air inlet pipe 57 is communicated with the lower air cavity 54, and a lower air inlet check valve 571 is arranged on the lower air inlet pipe 57; the exhaust pipes include an upper exhaust pipe 56 and a lower exhaust pipe 58; one end of the upper exhaust pipe 56 is communicated with the upper air cavity 53, the other end of the upper exhaust pipe is positioned below the bottom of the culture net cage 1, and an upper exhaust check valve 561 is arranged on the upper exhaust pipe 56; one end of the lower exhaust pipe 58 is communicated with the lower air cavity 54, and the other end of the lower exhaust pipe extends into the middle of the culture net cage 1; the lower exhaust pipe 58 is provided with a lower exhaust pipe check valve 581.
As the piston 51 moves downward, the upper air chamber 53 expands in volume while the lower air chamber 54 contracts in volume. At this time, the outside air flows into the upper air chamber 53 through the upper air inlet pipe 55, and the air in the lower air chamber 54 is discharged into the middle of the cultivation box with a net 1 through the lower air outlet pipe 58. When the piston 51 moves upward, the upper air chamber 53 is reduced in volume, while the lower air chamber 54 is expanded in volume. At this time, the outside air flows into the lower air chamber 54 through the lower air inlet pipe 57, and the air in the upper air chamber 53 is discharged from below the cultivation box with a net 1 through the upper air outlet pipe 57.
The structure effectively improves the oxygen content of the seawater in the culture net cage 1. In addition, the depth of the discharge end of the upper exhaust duct 56 is greater than the depth of the discharge end of the lower exhaust duct 58, which causes the pressure of the gas in the upper air chamber 53 to be greater than the pressure of the gas in the lower air chamber 54. Therefore, the resistance to be overcome when the piston 51 slides upward is greater than the resistance to be overcome when the piston 51 slides downward. This structure helps to overcome the problem that the floating body 6 is light in weight and it is difficult to drive the piston 51 to slide downward.
Specifically, the vent tube is a U-shaped tube 61.
The U-shaped tube 61 is constructed to prevent outside seawater from entering the air cylinder 5.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (8)

1. The utility model provides a cultivation net cage, includes cultivation net cage (1), cultivation net cage (1) include upper bracket floating frame (11) and fix at seabed's lower carriage (12), its characterized in that still includes:
4-8 cylinder shells (2), wherein each cylinder shell (2) is arranged between an upper supporting floating frame (11) and a lower supporting frame (12); a telescopic piece which slides up and down is arranged in each cylinder shell (2), the upper end of the telescopic piece extends out of the top of the cylinder shell (2) and the end part of the telescopic piece is hinged on the upper supporting floating frame (11), and the lower end of the telescopic piece is arranged in the cylinder shell (2) in a sliding manner;
An annular bait recovery net (42) arranged on the bottom of the culture net cage (1); the bait recycling net (42) is connected to each cylinder shell (2) through a rod, one end of the rod penetrates through a strip-shaped through groove (23) formed in the inner side of each cylinder shell (2), the end of the rod is fixedly connected to a transmission mechanism below the telescopic piece, and the other end of the rod is hinged to a box body in the aquaculture net box (1); when the telescopic piece slides up and down, the telescopic piece drives the bait collecting mechanism to synchronously and reversely move through the transmission mechanism;
The telescopic piece comprises a sliding block connecting rod (22) and a sliding block (21) which is arranged in the cylinder shell (2) in a sliding way; the upper end of the sliding block connecting rod (22) extends out of the top of the cylinder shell (2) and the end part of the sliding block connecting rod is hinged on the upper supporting floating frame (11), and the lower end of the sliding block connecting rod is fixedly connected to the sliding block (21); a drainage tank (3) is arranged in the culture net cage (1); a drainage box connecting rod (31) is arranged between the drainage box (3) and each sliding block (21); one end of the drainage box connecting rod (31) penetrates through the through groove (23) and the end part of the drainage box connecting rod is fixedly connected to the sliding block (21), and the other end of the drainage box connecting rod is hinged to the drainage box (3); the tank body is a water inlet tank (4) positioned below the drainage tank (3); a corrugated pipe (33) is arranged between the water inlet tank (4) and the water outlet tank (3); the upper edge of the corrugated pipe (33) is fixedly connected to the periphery of the opening on the lower side surface of the drainage tank (3), and the lower edge of the corrugated pipe is fixedly connected to the periphery of the opening on the upper side surface of the water inlet tank (4); a plurality of first nozzles (32) are connected on the lower side surface of the drainage box (3) around the corrugated pipe (33); a water inlet pipe (43) is connected to the water inlet tank (4), and a water inlet one-way valve (44) is arranged on the water inlet pipe (43);
A floating body (6) is hinged on the upper supporting floating frame (11); the cylinder shell (2) is fixedly provided with a cylinder (5), a piston (51) is slidably arranged in the cylinder (5), and a piston rod (52) is fixedly arranged on the piston (51); the upper end of the piston rod (52) extends out of the top of the air cylinder (5), the end part of the piston rod is hinged on the floating body (6), and the lower end of the piston rod is fixedly arranged on the piston (51); an air inlet pipe and an air outlet pipe are respectively connected to the air cylinder (5); a connecting hose (62) is connected between the floating body (6) and the air inlet pipe, the upper end of the connecting hose (62) is connected with an air pipe arranged on the upper side surface of the floating body (6), and the lower end of the connecting hose is connected with the air inlet pipe; one end of the exhaust pipe is communicated with the inside of the air cylinder (5), and the other end of the exhaust pipe extends into the culture net cage (1).
2. -A farming box according to claim 1, characterized in that the drainage box (3) is also connected with a number of drainage pipes (34); one end of each drain pipe (34) is communicated with the inside of the drain box (3), and the other end of each drain pipe is connected with a second nozzle (35); each of the second nozzles (35) faces the first netting (13) provided on the adjacent two cylinder housings (2).
3. A farming net cage according to claim 2, wherein a second net (14) is arranged between the top of the cylinder housing (2) and the upper support floating frame (11).
4. A aquaculture net cage according to claim 3, wherein said transmission mechanism comprises a rotating shaft (7) rotatably provided on the inner wall of the cylinder housing (2), said rotating shaft (7) having an axis perpendicular to the axis of the cylinder housing (2); a first gear (71) and a second gear (72) are coaxially and fixedly arranged on the rotating shaft (7) respectively; the first gear (71) and the second gear (72) are respectively connected with an upper rack (74) and a lower rack (73) which are arranged in the cylinder shell (2) in a sliding manner in a meshed manner; the upper rack (74) and the lower rack (73) are respectively positioned at two sides of the rotating shaft (7); the upper end of the upper rack (74) is fixedly arranged on the sliding block (21), and the lower end of the upper rack is suspended; the two ends of the lower rack (73) are respectively suspended, and the lower rack (73) is fixedly connected with a rod connected with a bait recycling net (42).
5. A aquaculture net cage according to claim 4, wherein the number of teeth of said first gear (71) is smaller than the number of teeth of said second gear (72).
6. The aquaculture net cage according to claim 5, wherein said slide (21) is provided with a notch (211) located right above the lower rack (73), and the cross section of said notch (211) is larger than the cross section of the lower rack (73).
7. -A farming cage according to claim 6, characterized in that the piston (51) divides the interior of the air cylinder (5) into an upper air chamber (53) and a lower air chamber (54); the air inlet pipe comprises an upper air inlet pipe (55) and a lower air inlet pipe (57); one end of the upper air inlet pipe (55) is respectively communicated with the lower end of the connecting hose (62) and the upper end of the lower air inlet pipe (57) through a three-way pipe, and the other end of the upper air inlet pipe is communicated with the upper air cavity (53); an upper air inlet check valve (551) is arranged on the upper air inlet pipe (55); the lower end of the lower air inlet pipe (57) is communicated with a lower air cavity (54), and a lower air inlet check valve (571) is arranged on the lower air inlet pipe (57); the exhaust pipe comprises an upper exhaust pipe (56) and a lower exhaust pipe (58); one end of the upper exhaust pipe (56) is communicated with the upper air cavity (53), the other end of the upper exhaust pipe is positioned below the bottom of the culture net cage (1), and an upper exhaust check valve (561) is arranged on the upper exhaust pipe (56); one end of the lower exhaust pipe (58) is communicated with the lower air cavity (54), and the other end of the lower exhaust pipe extends into the middle of the cultivation net cage (1); the lower exhaust pipe (58) is provided with a lower exhaust pipe one-way valve (581).
8. A farming box according to claim 7, wherein the ventilation pipe is a U-shaped pipe (61).
CN201911222353.5A 2019-12-03 2019-12-03 Culture net cage Active CN110754407B (en)

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CN111670850B (en) * 2020-06-18 2021-12-14 浙江海洋大学 Net cage capable of being lifted quickly
CN112690239B (en) * 2020-12-24 2023-08-25 南京格美达科技有限公司 Automatic fish feeding net cage based on tidal change
CN113426746A (en) * 2021-06-28 2021-09-24 湖北海洋工程装备研究院有限公司 Deep sea net cage cleaning system and deep sea net cage
CN114403072B (en) * 2022-03-07 2022-11-01 青岛黄海学院 Deep sea cultivation box, deep sea cultivation device and working method of deep sea cultivation device

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