CN110771544A - Automatic bait recovery device for aquaculture net cage - Google Patents
Automatic bait recovery device for aquaculture net cage Download PDFInfo
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- CN110771544A CN110771544A CN201911190348.0A CN201911190348A CN110771544A CN 110771544 A CN110771544 A CN 110771544A CN 201911190348 A CN201911190348 A CN 201911190348A CN 110771544 A CN110771544 A CN 110771544A
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- pipe
- suction pipe
- net cage
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- 238000009360 aquaculture Methods 0.000 title claims abstract description 57
- 244000144974 aquaculture Species 0.000 title claims abstract description 57
- 238000011084 recovery Methods 0.000 title claims abstract description 53
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 238000004064 recycling Methods 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 10
- 238000000638 solvent extraction Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 abstract description 11
- 239000001301 oxygen Substances 0.000 abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 3
- 241000251468 Actinopterygii Species 0.000 description 16
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 239000013535 sea water Substances 0.000 description 6
- 238000010298 pulverizing process Methods 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/60—Floating cultivation devices, e.g. rafts or floating fish-farms
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/80—Feeding devices
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention belongs to the technical field of cage culture, and relates to an automatic bait recovery device for a culture cage. The bait collecting device comprises a floating body and a bait recycling cylinder; an upper piston and a lower piston are arranged in the bait recycling cylinder; the upper end of the bait recycling cylinder is provided with a piston rod; the upper end of the piston rod is connected with the floating body, and the lower end of the piston rod is fixedly connected with the upper piston; a transmission mechanism is arranged between the upper piston and the lower piston; the bait recovery cylinder is provided with a bait suction pipe and a bait discharge pipe; one end of the bait suction pipe and one end of the bait discharge pipe extend into the bait recovery cylinder, and the other end of the bait suction pipe and the other end of the bait discharge pipe are respectively provided with a bait suction one-way valve and a bait discharge one-way valve; an air inlet pipe and an exhaust pipe are further arranged on the bait recycling cylinder, one end of the air inlet pipe and one end of the exhaust pipe both extend into the bait recycling cylinder, and the other end of the air inlet pipe and the other end of the exhaust pipe are respectively provided with an air inlet check valve and an exhaust check valve. The invention has the advantages that: utilizes the waves to effectively realize automatic bait recovery and oxygen supply for the aquaculture net cage.
Description
Technical Field
The invention belongs to the technical field of cage culture, and relates to an automatic bait recovery device for a culture cage.
Background
As the cage culture has the advantages of low cost, high yield, convenient management, high recapture rate and the like, the cage culture is rapidly developed in coastal areas in recent years.
However, in the process of cage culture, because the feeding adopts the way of directly throwing the baits into the culture cages, the feeding mode of throwing the baits into the culture cages at one time in large quantity has the following defects: because the baits are put in a concentrated mode at one time, a large amount of baits which are not eaten by fishes in the aquaculture net cage sink and pass through the aquaculture net cage, the baits are seriously wasted, a large amount of residual baits are deposited on the seabed, the marine substrate environment is influenced, and the problem that the marine substrate environment presents the eutrophication trend is solved.
In addition, because a large amount of fishes can be cultured in the culture net cage, the density of the fishes is high, the oxygen content in water is not sufficient, the condition of oxygen deficiency of the fishes easily occurs, and the growth and development of the fishes are not facilitated.
Disclosure of Invention
The invention aims to solve the problems in the prior art, provides an automatic bait recovery device for a culture net cage, and aims to solve the technical problems that: how to realize automatic bait recovery and oxygen supply of the aquaculture net cage by using wave energy.
The invention is realized by the following technical scheme: an automatic bait recovery device for a culture net cage comprises a floating body and a cylindrical bait recovery barrel which is vertically and fixedly arranged on the culture net cage; the bait recovery cylinder is coaxially arranged and is connected with an upper piston and a lower piston in a sliding manner; a piston rod is inserted into the upper end of the bait recovery cylinder, the upper end of the piston rod extends out of the bait recovery cylinder, the end part of the piston rod is movably connected with the floating body, and the lower end of the piston rod is fixedly connected with the upper piston; a transmission mechanism is arranged between the upper piston and the lower piston, and when the upper piston slides up and down, the transmission mechanism drives the lower piston to synchronously and reversely slide; the bait recycling cylinder is provided with a bait suction pipe and a bait discharge pipe, and one end of each of the bait suction pipe and the bait discharge pipe is positioned in a cavity formed by the upper piston and the lower piston in a way of separating the inside of the bait recycling cylinder; the other end of the bait suction pipe extends into the bottom of the aquaculture net cage, and the end part of the bait suction pipe is provided with a bait suction one-way valve; the other end of the bait discharge pipe extends into the culture net cage, and the end part of the bait discharge pipe is provided with a bait discharge one-way valve; still be provided with intake pipe and blast pipe on the bait recycling bin, the one end of intake pipe and blast pipe all is arranged in another cavity that becomes with bait recycling bin internal partitioning by last piston and lower piston, the intake pipe other end stretches out all the time on the sea and the tip has set firmly the check valve that admits air, the blast pipe other end stretches into in the aquaculture net case and the tip is provided with the exhaust check valve.
In the automatic bait recovery device for the aquaculture net cage, the upper piston and the lower piston divide the interior of the bait recovery cylinder into an upper side cavity, a middle cavity and a lower side cavity from top to bottom in sequence; and one ends of the air inlet pipe and the air outlet pipe extend into the lower side cavity and are always positioned below the lower piston.
In the above automatic bait recovery device for the aquaculture net cage, one ends of the bait suction pipe and the bait discharge pipe extend into the middle cavity and are always positioned between the upper piston and the lower piston.
In the automatic bait recovery device for the aquaculture net cage, the floating body is provided with the water tank, and the floating body is also provided with a plurality of flow guide holes communicated with the water tank.
In the above automatic bait recovery device for the aquaculture net cage, the exhaust one-way valve is lower than the bait discharge one-way valve.
In the automatic bait recovery device for the aquaculture net cage, the inner wall of the upper side cavity is provided with the drainage hole, and the drainage hole is always positioned above the upper piston.
In the above automatic bait recovery device for the aquaculture net cage, the bait suction pipe comprises a third suction pipe made of rigid material, the third suction pipe is fixedly arranged on the lower piston, the upper end of the third suction pipe penetrates through the lower piston and the end part of the third suction pipe extends into the middle cavity, the lower end of the third suction pipe extends into the lower side cavity, and the end part of the third suction pipe is connected with a second suction pipe made of flexible material; the lower end of the second suction pipe is positioned in the lower side cavity, the end part of the second suction pipe is connected with a first suction pipe made of rigid materials, the lower end of the first suction pipe extends into the bottom of the aquaculture net cage, and the end part of the first suction pipe is connected with the bait suction one-way valve.
In the above automatic bait recycling device for the aquaculture net cage, the transmission mechanism comprises an upper rack and a lower rack, the tooth surfaces of the upper rack and the lower rack are arranged oppositely, and the upper rack and the lower rack are symmetrically arranged along the axis of the bait recycling cylinder; the upper end of the upper rack is fixedly arranged on the upper piston, and the lower end of the upper rack is suspended; the lower end of the lower rack is fixedly arranged on the lower piston, and the upper end of the lower rack is suspended; and a transmission gear is meshed and connected between the upper rack and the lower rack, a transmission gear shaft is coaxially and fixedly arranged on the transmission gear, and two ends of the transmission gear shaft are respectively and rotatably arranged on the inner wall of the middle cavity.
In the automatic bait recovery device for the aquaculture net cage, a spring is further sleeved on the bait suction pipe between the lower piston and the bottom of the bait recovery barrel; one end of the spring is pressed against the lower piston, and the other end of the spring is pressed against the bottom of the bait recovery cylinder.
In the automatic bait recovery device for the aquaculture net cage, a crushing gear is arranged between the transmission gear and the lower piston and is in meshed connection with the transmission gear; the crushing gear is coaxially and fixedly provided with a crushing gear rotating shaft, and two ends of the crushing gear rotating shaft are respectively rotatably arranged on the inner wall of the middle cavity.
Compared with the prior art, this automatic recovery unit of bait has following advantage:
1. when the middle cavity is expanded, the bait in the conical bottom is sucked into the middle cavity through the bait suction one-way valve and the bait suction pipe in sequence by the suction force generated by the upper piston and the lower piston. In this process, the bait located in the conical bottom is also subjected to seawater pressure, which makes it possible for the bait to enter the intermediate chamber efficiently, since the conical bottom is located lower than the lowest position of the intermediate chamber. When the middle cavity shrinks, the bait in the middle cavity is discharged into the cultivation net cage through the bait discharge pipe and the bait discharge one-way valve by the extrusion generated by the upper piston and the lower piston. In the process, because the water pressure in the middle cavity is equivalent to the water pressure at the position of the conical bottom, the water pressure in the middle cavity is larger than the water pressure on the bait discharge one-way valve, and the bait is effectively discharged from the middle cavity under the action of the pressure difference. The process realizes bait recovery and reutilization, reduces bait waste, and reduces influence on marine geological environment.
2. When the floating body drives the piston rod to move up and down, the piston rod drives the upper piston to slide up and down, and the upper piston drives the lower piston to synchronously and reversely slide through the transmission mechanism, so that the lower side cavity is changed between expansion and contraction. When the lower side cavity is enlarged, the lower piston sucks air on the sea surface into the lower side cavity through the air inlet one-way valve and the air inlet pipe in sequence; when the lower cavity is contracted, the lower piston discharges the air in the lower cavity into the aquaculture net cage through the exhaust pipe and the exhaust one-way valve in sequence, so that the oxygen content of the water in the aquaculture net cage is increased.
3. This automatic recovery unit of bait utilizes the wave energy, realizes simultaneously for automatic oxygen suppliment of aquaculture net case and bait recovery and recycle, effectively reduces the pollution that the fish culture in-process produced on the one hand, and the environmental protection realizes green resources such as wave energy and recycles, and on the other hand effectively reduces the cost of breeding, still improves the breed efficiency that the fish was bred simultaneously.
4. The floating body drives the piston rod to move up and down. The water tank is mainly arranged and has the following functions: the water tank is filled with water to increase the overall mass of the floating body, so that the floating body is helpful to drive the piston rod to move up and down; the water tank increases the contact area when waves impact the floating body, so that the floating body fully absorbs the wave energy and converts the wave energy into mechanical energy for driving the piston rod to move up and down; avoid impacting the aquaculture net cage between the wave, improve aquaculture net cage's structural stability.
5. During the enlargement of the middle cavity, the water pressure in the middle cavity is equivalent to the water pressure at the position of the conical bottom, and the structure is helpful for discharging the air in the lower cavity into the breeding net box. And the exhaust check valve at the lower position is favorable for the air to contact with the water component in the cultivation net cage, so that the oxygen content of the water is effectively increased. On one hand, the bait discharging one-way valve at the higher position generates larger pressure difference by seawater, which is beneficial to the bait to enter and discharge from the middle cavity; on the other hand, the travel and the time of the bait falling to the bottom of the aquaculture net cage are increased, and the probability of the bait eating by the fish is effectively improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a sectional view of the structure at a-a in fig. 1.
Fig. 3 is a sectional view of the structure at B-B in fig. 2.
Fig. 4 is a schematic structural view of the upper piston and the lower piston in relative motion in the present invention.
Fig. 5 is a schematic view of the upper piston and the lower piston moving away from each other according to the present invention.
In the figure, 1, a culture net cage; 11. a tapered bottom; 12. a fixed seat; 13. an anchor chain; 2. a float; 21. a water tank; 22. a flow guide hole; 3. a bait recycling cylinder; 31. an upper piston; 311. a piston rod; 311. an upper rack; 32. a lower piston; 321. a lower rack; 33. an upper lateral cavity; 331. a drainage aperture; 34. a middle cavity; 341. a bait discharge pipe; 342. the bait is discharged out of the one-way valve; 35. a lower cavity; 351. an air inlet pipe; 352. an air inlet check valve; 353. an exhaust pipe; 354. an exhaust check valve; 36. a bait suction pipe; 361. a first suction pipe; 362. a second suction pipe; 363. a third suction pipe; 364. bait is sucked into the one-way valve; 37. a transmission gear; 371. a drive gear shaft; 38. a crushing gear; 381. a pulverizing gear shaft; 39. a spring.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Referring to fig. 1 to 5, an automatic bait recovery device for a aquaculture net cage comprises a floating body 2 and a cylindrical bait recovery barrel 3 vertically and fixedly arranged on the aquaculture net cage; the bait recycling cylinder 3 is coaxially arranged and is connected with an upper piston 31 and a lower piston 32 in a sliding manner; a piston rod 311 is inserted at the upper end of the bait recycling cylinder 3, the upper end of the piston rod 311 extends out of the bait recycling cylinder 3, the end part of the piston rod 311 is movably connected with the floating body 2, and the lower end of the piston rod 311 is fixedly connected with the upper piston 31; a transmission mechanism is arranged between the upper piston 31 and the lower piston 32, and when the upper piston 31 slides up and down, the transmission mechanism drives the lower piston 32 to synchronously and reversely slide; the bait recycling cylinder 3 is provided with a bait suction pipe 36 and a bait discharge pipe 341, and one ends of the bait suction pipe 36 and the bait discharge pipe 341 are both positioned in a cavity partitioned by the upper piston 31 and the lower piston 32 inside the bait recycling cylinder 3; the other end of the bait suction pipe 36 extends into the bottom of the aquaculture net cage, and a bait suction one-way valve 364 is arranged at the end part; the other end of the bait discharge pipe 341 extends into the culture net cage, and the end part is provided with a bait discharge one-way valve 342; still be provided with intake pipe 351 and blast pipe 353 on the bait recycling bin 3, the one end of intake pipe 351 and blast pipe 353 all is located by last piston 31 and lower piston 32 with bait recycling bin 3 internal partitioning in another cavity, the intake pipe 351 other end stretches out all the time on the sea and the tip sets firmly admits air check valve 352, the blast pipe 353 other end stretches into in the aquaculture net case and the tip is provided with exhaust check valve 354.
In the culture process, because the bait is directly thrown into the culture net cage 1, a large amount of bait is not eaten by the fishes in the culture net cage and sinks to the conical bottom 11.
When the floating body 2 drives the piston rod 311 to move up and down, the piston rod 311 drives the upper piston 31 to slide up and down, and the upper piston 31 drives the lower piston 32 to synchronously slide in the reverse direction through the transmission mechanism. That is, when the upper piston 31 moves upward, the lower piston 32 moves downward, and at this time, the chamber including the bait suction pipe 36 and the bait discharge pipe 341 is changed between being enlarged and reduced. The bait in the tapered bottom 11 is discharged into the aquaculture net cage 1 through the bait suction check valve 366, the bait suction pipe 36, the bait discharge pipe 341 and the bait discharge check valve 342 in sequence by the suction force and the extrusion generated by the upper piston 31 and the lower piston 32. The process realizes bait recovery and reutilization, reduces bait waste, and reduces influence on marine geological environment.
Meanwhile, the other chamber containing the air inlet pipe 351 and the air outlet pipe 353 is changed between contraction and expansion synchronously, and the air on the sea surface is discharged into the aquaculture net cage 1 through the air inlet check valve 352, the air inlet pipe 351, the air outlet pipe 353 and the air outlet check valve 354 in sequence by the lower piston 32, so that the oxygen content of the water in the aquaculture net cage 1 is increased.
This automatic recovery unit of bait utilizes the wave energy, realizes simultaneously for 1 automatic oxygen suppliment of aquaculture net case and bait recovery and recycle, effectively reduces the pollution that the fish culture in-process produced on the one hand, and the environmental protection realizes green resources such as tidal energy and recycles, and on the other hand effectively reduces the breed cost, still improves the breed efficiency that the fish was bred simultaneously.
Referring to fig. 1 and 3 to 5, in particular, the upper piston 31 and the lower piston 32 divide the interior of the bait recycling cylinder 3 into an upper cavity 33, a middle cavity 34 and a lower cavity 35 from top to bottom in sequence; one end of each of the intake pipe 351 and the exhaust pipe 353 protrudes into the lower chamber 35 and is located below the lower piston 32 at all times.
When the floating body 2 drives the piston rod 311 to move up and down, the piston rod 311 drives the upper piston 31 to slide up and down, and the upper piston 31 drives the lower piston 32 to synchronously slide in the opposite direction through the transmission mechanism, so that the lower cavity 35 is changed between expansion and contraction. When the lower cavity 35 is expanded, the lower piston 32 sucks air on the sea surface into the lower cavity 35 through the air inlet check valve 352 and the air inlet pipe 353 in sequence; when the lower cavity 35 shrinks, the lower piston 32 discharges the air in the lower cavity 35 into the aquaculture net cage 1 through the exhaust pipe 353 and the exhaust check valve 354 in sequence, so as to increase the oxygen content of the water in the aquaculture net cage 1.
Referring to fig. 1 and 3 to 5, in particular, one end of each of the bait suction tube 36 and the bait discharge tube 341 extends into the middle chamber 34 and is always located between the upper piston 31 and the lower piston 32.
When the floating body 2 drives the piston rod 311 to move up and down, the piston rod 311 drives the upper piston 31 to slide up and down, and the upper piston 31 drives the lower piston 32 to synchronously slide in the reverse direction through the transmission mechanism. That is, when the upper piston 31 moves upward, the lower piston 32 moves downward, and the middle chamber 34 expands while the upper chamber 34 and the lower chamber 35 contract at the same time; when the upper piston 31 moves downward, the lower piston moves upward, and the middle chamber 34 is contracted while the upper chamber 34 and the lower chamber 35 are simultaneously expanded.
As the intermediate chamber 34 expands, the suction created by the upper piston 31 and the lower piston 32 draws bait located in the tapered bottom portion 11 into the intermediate chamber 34 through the bait suction check valve 366 and the bait suction tube 36 in sequence. During this process, the bait located in the conical bottom 11 is also subjected to seawater pressure, which makes the bait effective to enter the intermediate chamber 34, since the conical bottom 11 is located lower than the lowest position of the intermediate chamber 34.
When the middle chamber 34 is contracted, the bait located in the middle chamber 34 is discharged into the cultivation net cage 1 through the bait discharge pipe 341 and the bait discharge check valve 342 in order by the compression generated by the upper piston 31 and the lower piston 32. In this process, since the water pressure in the intermediate chamber 34 is equivalent to the water pressure at the position of the tapered bottom 11, the water pressure in the intermediate chamber 34 is higher than the water pressure to which the bait discharge check valve 342 is subjected, and the bait is effectively discharged from the intermediate chamber 34 by this pressure difference.
Through the process, the automatic bait recovery device utilizes wave energy to realize the function of recovering and recycling 1 bait of the aquaculture net cage, thereby effectively reducing the pollution generated in the fish aquaculture process, protecting the environment, realizing the recycling of green resources such as wave energy and the like, effectively reducing the aquaculture cost on the other hand, and also improving the aquaculture efficiency of fish aquaculture.
Referring to fig. 1, specifically, a water tank 21 is disposed on the floating body 2, and a plurality of diversion holes 22 communicated with the water tank 21 are further disposed on the floating body 2.
The floating body 2 moves the piston rod 311 up and down. The water tank 21 is mainly provided with the following functions: the water tank 21 is filled with water to increase the overall mass of the floating body 2, thereby being beneficial to driving the floating body 2 to move up and down; the water tank 21 increases the contact area when waves impact the floating body 2, so that the floating body 2 fully absorbs the wave energy and converts the wave energy into mechanical energy for driving the piston rod 311 to move up and down; the aquaculture net cage 1 is prevented from being impacted between waves, and the structural stability of the aquaculture net cage 1 is improved.
Referring to fig. 1, in particular, the exhaust check valve 354 is positioned lower than the bait discharge check valve 342.
During the enlargement of the intermediate chamber 34, the water pressure in the intermediate chamber 34 corresponds to the water pressure at the location of the conical bottom 11, which helps to expel the air in the lower chamber 35 into the aquaculture net 1. The exhaust one-way valve 354 at the lower position is beneficial to the contact of air and water components in the aquaculture net cage 1, and the oxygen content of water is effectively increased.
The higher bait discharge check valve 342, on the one hand, creates a larger pressure differential from the seawater to help the bait enter and exit the intermediate chamber 34; on the other hand, the travel and the time for the bait to fall to the bottom of the aquaculture net cage 1 are increased, and the probability of the bait for the fish is effectively improved.
Referring to fig. 3 to 5, in particular, the inner wall of the upper side chamber 33 is provided with a drainage hole 331, and the drainage hole 331 is always located above the upper piston 31.
When the upper chamber 33 is changed between expansion and contraction, the upper piston 31 sucks or discharges seawater into or out of the upper chamber 33 through the discharge hole 331, which facilitates the up-and-down movement of the upper piston 31.
Preferably, the drainage hole 311 opens toward the aquaculture net cage 1.
When the upper piston 31 sucks the seawater into or out of the upper chamber 33 through the discharge hole 331, the resulting water flow change washes the netting, reducing the attachments on the netting.
Referring to fig. 1, in detail, the bait suction pipe 36 includes a third suction pipe 343 made of a rigid material, the third suction pipe 343 is fixedly disposed on the lower piston 32, an upper end of the third suction pipe 343 penetrates through the lower piston 32 and an end portion thereof extends into the middle chamber 34, a lower end of the third suction pipe 343 extends into the lower chamber 35 and an end portion thereof is connected with a second suction pipe 362 made of a flexible material; the lower end of the second suction pipe 362 is located in the lower side cavity 35, the end part of the second suction pipe is connected with a first suction pipe 361 made of rigid materials, the lower end of the first suction pipe 361 extends into the bottom of the aquaculture net cage, and the end part of the first suction pipe is connected with a bait suction one-way valve 364.
The lower piston 32 slides up and down to drive the third suction pipe 363 to stretch and compress the second suction pipe 362. This arrangement effectively ensures that bait material enters and exits the intermediate chamber 34.
Referring to fig. 1 and 3 to 5, in particular, the transmission mechanism comprises an upper rack 312 and a lower rack 321 with opposite tooth surfaces, and the upper rack 312 and the lower rack 321 are symmetrically arranged with respect to the axis of the bait recycling bin 3; the upper end of the upper rack 312 is fixedly arranged on the upper piston 31, and the lower end is suspended; the lower end of the lower rack 321 is fixedly arranged on the lower piston 32, and the upper end is suspended; a transmission gear 37 is engaged and connected between the upper rack 312 and the lower rack 321, a transmission gear shaft 371 is coaxially and fixedly arranged on the transmission gear 37, and two ends of the transmission gear shaft 371 are respectively rotatably arranged on the inner wall of the middle cavity 34.
When the upper piston 31 slides up and down, the upper piston 31 drives the upper rack 312 to move up and down. Meanwhile, the upper rack 312 synchronously drives the lower rack 321 to move reversely through the transmission gear 37. The upper piston 31 and the lower piston 32 synchronously and reversely slide through the transmission mechanism, so that automatic bait recycling and reusing and automatic oxygen supply are realized, and the transmission mechanism is simple in structure and low in cost.
Referring to fig. 1 and 3 to 5, specifically, a spring 39 is further sleeved on the bait suction pipe 36 between the lower piston 32 and the bottom of the bait recycling cylinder 3; one end of the spring 39 is pressed against the lower piston 32, and the other end is pressed against the bottom of the bait recycling cylinder 3.
As the lower piston 32 slides up and down, the spring 39 changes between restoring and compressing. The spring force generated by the compression of the spring helps balance the force applied to the lower piston 32, thereby improving the stability of the lower piston 32 during sliding.
Referring to fig. 1 and 3 to 5, specifically, a crushing gear 38 is arranged between the transmission gear 37 and the lower piston 32, and the crushing gear 38 is in meshing connection with the transmission gear 37; a pulverizing gear rotating shaft 381 is coaxially and fixedly arranged on the pulverizing gear 38, and two ends of the pulverizing gear rotating shaft 381 are respectively and rotatably arranged on the inner wall of the middle cavity 34.
The possibility of the bait being consumed is reduced by the fact that the bait becomes so agglomerated that it is too bulky or so dense that it is difficult for the fish to digest it after consumption.
The crushing gear 38 is driven by the transmission gear 37 to rotate, and the crushing gear 38 and the transmission gear 37 rotate simultaneously, so that the bait in the middle cavity 34 is crushed and thinned, the fish can effectively eat the bait, and the utilization rate of the bait is further improved.
Preferably, the pulverizing gear 38 is located right above the upper end of the third suction pipe 363.
After the bait is sucked into the intermediate cavity 34 by the bait suction pipe 36, the bait is sprayed between the crushing gear 38 and the transmission gear 37 through the third suction pipe 363, so that the working efficiency of crushing the bait is improved.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. An automatic bait recovery device for a culture net cage is characterized by comprising a floating body (2) and a cylindrical bait recovery barrel (3) which is vertically and fixedly arranged on the culture net cage; the bait recovery cylinder (3) is coaxially arranged and is connected with an upper piston (31) and a lower piston (32) in a sliding manner; a piston rod (311) is inserted at the upper end of the bait recovery cylinder (3), the upper end of the piston rod (311) extends out of the bait recovery cylinder (3), the end part of the piston rod is movably connected with the floating body (2), and the lower end of the piston rod (311) is fixedly connected with the upper piston (31); a transmission mechanism is arranged between the upper piston (31) and the lower piston (32), and when the upper piston (31) slides up and down, the transmission mechanism drives the lower piston (32) to synchronously and reversely slide; the bait recycling cylinder (3) is provided with a bait suction pipe (36) and a bait discharge pipe (341), and one end of each of the bait suction pipe (36) and the bait discharge pipe (341) is positioned in a cavity partitioned by the upper piston (31) and the lower piston (32) into the bait recycling cylinder (3); the other end of the bait suction pipe (36) extends into the bottom of the aquaculture net cage, and a bait suction one-way valve (364) is arranged at the end part of the bait suction pipe; the other end of the bait discharge pipe (341) extends into the culture net box, and the end part of the bait discharge pipe is provided with a bait discharge one-way valve (342); still be provided with intake pipe (351) and blast pipe (353) on bait recycling bin (3), the one end of intake pipe (351) and blast pipe (353) all is located by last piston (31) and piston (32) down with bait recycling bin (3) internal partitioning in another cavity, intake pipe (351) other end stretches out all the time on the sea and the tip has set firmly admit air check valve (352), blast pipe (353) other end stretches into in the breed net case and the tip is provided with exhaust check valve (354).
2. The automatic bait recovery device for the aquaculture net cage according to claim 1, wherein the upper piston (31) and the lower piston (32) divide the interior of the bait recovery barrel (3) into an upper side cavity (33), a middle cavity (34) and a lower side cavity (35) from top to bottom in sequence; one end of each of the air inlet pipe (351) and the air outlet pipe (353) extends into the lower side cavity (35) and is always positioned below the lower piston (32).
3. An automatic bait recovery device for aquaculture net cages according to claim 2, characterized in that one end of each of said bait suction pipe (36) and said bait discharge pipe (341) extends into the intermediate chamber (34) and is always located between the upper piston (31) and the lower piston (32).
4. The automatic bait recovery device for the aquaculture net cage according to claim 3, wherein the floating body (2) is provided with a water tank (21), and the floating body (2) is further provided with a plurality of flow guide holes (22) communicated with the water tank (21).
5. An automatic bait recovery device for aquaculture cages as claimed in claim 4, wherein the position of said exhaust check valve (354) is lower than the position of the bait discharge check valve (342).
6. An automatic bait recovery device for aquaculture net cages as claimed in claim 5, wherein said upper side chamber (33) has drainage holes (331) on its inner wall, said drainage holes (331) are always located above the upper piston (31).
7. An automatic bait recovery device for aquaculture net cages according to claim 6, wherein said bait suction pipe (36) comprises a third suction pipe (343) made of rigid material, said third suction pipe (343) is fixedly arranged on the lower piston (32), the upper end of said third suction pipe (343) passes through the lower piston (32) and the end part thereof extends into the middle cavity (34), the lower end of said third suction pipe (343) extends into the lower cavity (35) and the end part thereof is connected with a second suction pipe (362) made of flexible material; the lower end of the second suction pipe (362) is positioned in the lower side cavity (35), the end part of the second suction pipe is connected with a first suction pipe (361) made of rigid materials, the lower end of the first suction pipe (361) extends into the bottom of the aquaculture net cage, and the end part of the first suction pipe is connected with a bait suction one-way valve (364).
8. The automatic bait recovery device for the aquaculture net cage according to any one of claims 1 to 7, wherein the transmission mechanism comprises an upper rack (312) and a lower rack (321) which are arranged in a tooth surface opposite mode, and the upper rack (312) and the lower rack (321) are symmetrically arranged with respect to the axis of the bait recovery barrel (3); the upper end of the upper rack (312) is fixedly arranged on the upper piston (31), and the lower end is suspended; the lower end of the lower rack (321) is fixedly arranged on the lower piston (32), and the upper end of the lower rack is suspended; go up the meshing between rack (312) and lower rack (321) and be connected with drive gear (37), drive gear (37) are gone up the coaxial drive gear axle (371) that has set firmly, the both ends of drive gear axle (371) rotate respectively and set up on the inner wall of middle chamber (34).
9. The automatic bait recovery device for the aquaculture net cage according to claim 8, wherein a spring (39) is further sleeved on the bait suction pipe (36) between the lower piston (32) and the bottom of the bait recovery barrel (3); one end of the spring (39) is pressed against the lower piston (32), and the other end is pressed against the bottom of the bait recovery cylinder (3).
10. The automatic bait recovery device for the aquaculture net cage according to claim 9, wherein a crushing gear (38) is arranged between the transmission gear (37) and the lower piston (32), and the crushing gear (38) is meshed with the transmission gear (37); the crushing gear (38) is coaxially and fixedly provided with a crushing gear rotating shaft (381), and two ends of the crushing gear rotating shaft (381) are respectively and rotatably arranged on the inner wall of the middle cavity (34).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911190348.0A CN110771544B (en) | 2019-11-28 | 2019-11-28 | Automatic bait recovery device for aquaculture net cage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911190348.0A CN110771544B (en) | 2019-11-28 | 2019-11-28 | Automatic bait recovery device for aquaculture net cage |
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| CN110771544A true CN110771544A (en) | 2020-02-11 |
| CN110771544B CN110771544B (en) | 2021-08-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112314496A (en) * | 2020-11-24 | 2021-02-05 | 舟山君耀科技发展有限公司 | Aquaculture device utilizing wave energy |
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| KR20190091843A (en) * | 2018-01-29 | 2019-08-07 | 주식회사 담우광학전자기술 | Apparatus for seawater and oxygen supply of floating fish cage |
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| CN110036960A (en) * | 2019-04-28 | 2019-07-23 | 浙江省海洋水产研究所 | Utilize the deep-sea culture net cage of wave energy |
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