CN113875667B - Ecological green aquaculture net cage and use method thereof - Google Patents
Ecological green aquaculture net cage and use method thereof Download PDFInfo
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- CN113875667B CN113875667B CN202111334690.0A CN202111334690A CN113875667B CN 113875667 B CN113875667 B CN 113875667B CN 202111334690 A CN202111334690 A CN 202111334690A CN 113875667 B CN113875667 B CN 113875667B
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- 238000009360 aquaculture Methods 0.000 title claims abstract description 26
- 244000144974 aquaculture Species 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims description 14
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 12
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 12
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 241000209128 Bambusa Species 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000009958 sewing Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 241000251468 Actinopterygii Species 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 241000196324 Embryophyta Species 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 241001233242 Lontra Species 0.000 claims 1
- 230000008439 repair process Effects 0.000 description 2
- 241000252185 Cobitidae Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction 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
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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
- A01K61/65—Connecting or mooring devices therefor
-
- 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)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention relates to the technical field of aquaculture net cages and discloses an ecological green aquaculture net cage and a using method thereof. According to the ecological green aquaculture net cage and the using method thereof, the net roller and the rotating roller are respectively arranged and are respectively arranged at the top and the bottom of the side face of the net cage, then the net roller and the rotating roller can be in transmission connection through sleeving the net, when the net is damaged, the damaged part of the net can be moved to the water surface only by rotating the net roller, and the net can be conveniently repaired.
Description
Technical Field
The invention relates to the technical field of aquaculture net cages, in particular to an ecological green aquaculture net cage and a using method thereof.
Background
The aquaculture net cage is used for culturing aquatic products such as fry, finless eel, loach, crab and the like, can save land and manpower occupied by digging a fishpond, does not need a special fishing tool during harvesting, and can be moved at any time according to the change of the water area environment.
The net cage culture has the characteristics of low investment, high yield, mobility, quick response and the like, so the net cage culture is rapidly developed in rivers and lakes across the country, but after the existing net cage for aquaculture is put into lake water for use, the existing net cage needs to be soaked in the water for a long time, so that a net coat is difficult to repair under the condition that the net coat is accidentally damaged, the aquatic product is easy to escape, and the economy is lost.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the ecological green aquaculture net cage and the use method thereof, which have the advantages of conveniently repairing the net and enhancing the strength of the net cage, and solve the problems that the net is difficult to repair under the condition that the net is accidentally damaged and the net is easy to deform due to strong wind waves and water flows.
The invention provides the following technical scheme: an ecological green aquaculture net cage and a using method thereof, comprising a cross frame, wherein two ends of the cross frame are fixedly provided with upright posts, the surface of the upright post is provided with a ring groove, the inner wall of the ring groove is rotatably sleeved with an adapter ring, the side surface of the adapter ring is welded with a caulking plate, the upper surface of the transverse frame is welded with a bottom frame, the inner wall of the bottom frame is rotationally connected with a rotating roller through a rotating shaft, the bottom end of the upright post is welded with a mounting block, the side surface of the upright post close to the top is provided with a through hole, a supporting rod is inserted into the inner wall of the through hole, the surface of the supporting rod is respectively sleeved with a bearing seat and a net roller, the surface of the net roller is provided with a net, and the net roller is connected with the rotary roller through net cloth transmission, the side welding of the cross frame is provided with a mounting plate, the top of the mounting plate is provided with a cover plate, and the side of the cross frame is fixedly provided with a net plate through the mounting plate and the cover plate.
Preferably, the two ends of the cross frame are welded with clamping blocks, the side face of the mounting block is provided with a clamping groove, the shape of each clamping block is matched with that of the inner wall of the clamping groove, and the surface of each clamping block and the inner wall of the clamping groove are fixedly mounted through bolts.
Preferably, the number of the seam pressing plates is two, the two seam pressing plates are respectively located on two sides of the net roller, a square groove and a through groove are respectively formed in the surfaces of the two seam pressing plates, a shaft rod is rotatably connected to the inner wall of the square groove, a screw rod is welded to the side face of the shaft rod, and the surface of the screw rod is in sliding connection with the inner wall of the through groove.
Preferably, the position of net roller and commentaries on classics roller is corresponding, and the belt groove has all been seted up on the surface of net roller and commentaries on classics roller, the inner wall in belt groove is provided with the drive belt, drive belt fixed mounting is in the side of etting.
Preferably, the number of the through holes is four, and the four through holes are intersected in a pairwise perpendicular mode.
Preferably, the shape of the side surface of the bearing seat is a concave arc, and the radian size of the concave arc of the side surface of the bearing seat is matched with the side surface of the upright post.
Preferably, jacks are formed in the surface of the screen plate, the number of the jacks is a plurality, the jacks are uniformly distributed at the edge of the screen plate, the lower surface of the cover plate is welded with the insert blocks, and the positions of the insert blocks correspond to the positions of the jacks.
A use method of an ecological green aquaculture net cage specifically comprises the following steps:
the method comprises the following steps: selecting a net with the corresponding mesh size according to the type of the fish fries cultured by a user, cutting the width of the net to be equal to the length of a net roller, cutting the length of the net to be twice of the height of an upright post, sewing the net together end to end, paying attention to the fact that the length of the sewn net corresponds to the distance between the net roller and a rotating roller, and sewing a transmission belt on two sides of the net;
step two: selecting a lake which is sheltered from wind and exposed to the sun, has no pollution, is small in wind wave and flows slightly, avoiding water plants at the water depth of 3-7 m, positioning the lake by using iron anchors or stones, manufacturing a frame by using a bamboo or wood structure, filling an empty oil barrel to form a floating system, and finally splicing and installing a net cage for use;
step three: when the net cage is arranged, four mao bamboos are inserted into the mud at four corners, the four corners of the net cage are fixed on the mao bamboos by ropes, stones are used as sinkers at the bottoms of the four corners and are tied by the ropes, the four mao bamboos sink to the bottom of the water, the length of the ropes is adjusted, so that the net cage is fixed in water with a certain depth, can be lifted, and can be adjusted in depth to prevent the net cage from being washed away by storm water flow.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the ecological green aquaculture net cage and the using method thereof, the net roller and the rotating roller are respectively arranged and are respectively arranged at the top and the bottom of the side face of the net cage, then the net roller and the rotating roller can be in transmission connection through sleeving the net, when the net is damaged, the damaged part of the net can be moved to the water surface only by rotating the net roller, and the net can be conveniently repaired.
2. According to the ecological green aquaculture net cage and the using method thereof, the net cage frame is formed by combining the crossbearers, the upright posts, the supporting rods and the like, so that the net cage can be conveniently detached and moved and has certain strength, the impact strength of the net cage is greatly improved, certain stormy waves and water flows can be resisted, and the condition that a net cover is deformed or folded is avoided.
3. According to the ecological green aquaculture net cage and the using method thereof, the seam pressing plates are arranged, after the net cage is placed, the screw rods are fastened by the nuts, so that the two seam pressing plates compress the side face of the net, the net can be fixed, and meanwhile, the two seam pressing plates are folded together, so that gaps on two sides of the net can be compacted, and water products are prevented from escaping.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the cage skeleton supporting frame of the present invention;
FIG. 3 is a schematic view of the structure of the mounting block of the present invention;
FIG. 4 is a schematic view of the square groove structure of the present invention;
FIG. 5 is a schematic view of an expanded structure of the installation site of the net plate according to the present invention;
FIG. 6 is a schematic side sectional view of the present invention;
FIG. 7 is an enlarged view of the portion A in FIG. 6 according to the present invention;
FIG. 8 is an enlarged view of the structure at A in FIG. 7 according to the present invention;
fig. 9 is a schematic cross-sectional view of a bearing seat according to the present invention.
In the figure: 1. a transverse frame; 2. mounting blocks; 3. a column; 4. a ring groove; 5. a transfer ring; 6. pressing a seam plate; 7. netting; 8. a transmission belt; 9. a chassis; 10. a screen plate; 11. a strut; 12. a bearing seat; 13. a mesh roller; 14. rotating the roller; 15. a belt groove; 16. a clamping block; 17. a card slot; 18. a through hole; 19. a square groove; 20. a shaft lever; 21. a screw; 22. a through groove; 23. mounting a plate; 24. a cover plate; 25. inserting a block; 26. and (4) inserting the jack.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-9, an ecological green aquaculture net cage and a using method thereof, comprising a cross frame 1, wherein two ends of the cross frame 1 are fixedly provided with upright posts 3, the surface of the upright post 3 is provided with a ring groove 4, the inner wall of the ring groove 4 is rotatably sleeved with an adapter ring 5, the side surface of the adapter ring 5 is welded with a caulking plate 6, the upper surface of the cross frame 1 is welded with an underframe 9, the inner wall of the underframe 9 is rotatably connected with a rotating roller 14 through a rotating shaft, the bottom end of the upright post 3 is welded with a mounting block 2, the side surface of the upright post 3 close to the top is provided with a through hole 18, the inner wall of the through hole 18 is inserted with a support rod 11, the surface of the support rod 11 is respectively sleeved with a bearing seat 12 and a net roller 13, the surface of the net roller 13 is provided with a net coat 7, and the net roller 13 and the rotary roller 14 are in transmission connection through the netting 7, the side surface of the transverse frame 1 is welded with the mounting plate 23, the cover plate 24 is arranged above the mounting plate 23, and the side surface of the transverse frame 1 is fixedly provided with the net plate 10 through the mounting plate 23 and the cover plate 24.
Specifically, the two ends of the transverse frame 1 are welded with the clamping blocks 16, the side face of the mounting block 2 is provided with the clamping groove 17, the shape of each clamping block 16 is matched with that of the inner wall of the corresponding clamping groove 17, and the surface of each clamping block 16 is fixedly mounted with the inner wall of the corresponding clamping groove 17 through bolts.
In this embodiment, the inner walls of the clamping block 16 and the clamping groove 17 are inserted, so that the installation of the transverse frame 1 and the upright post 3 is more stable.
Specifically, the number of the caulking plates 6 is two, the two caulking plates 6 are respectively located on two sides of the net roller 13, the surfaces of the two caulking plates 6 are respectively provided with a square groove 19 and a through groove 22, the inner wall of the square groove 19 is rotatably connected with a shaft rod 20, the side surface of the shaft rod 20 is welded with a screw rod 21, and the surface of the screw rod 21 is slidably connected with the inner wall of the through groove 22.
In the embodiment, the seam pressing plates 6 are arranged, so that the seam pressing plates 6 can be folded through fastening nuts to achieve the effect of fixing the netting 7, and meanwhile, the two seam pressing plates 6 can be folded together to compact the gaps on the two sides of the netting 7, so that the aquatic products are prevented from escaping.
Specifically, the position of the net roller 13 corresponds to that of the rotating roller 14, the surfaces of the net roller 13 and the rotating roller 14 are provided with belt grooves 15, the inner wall of each belt groove 15 is provided with a transmission belt 8, and the transmission belt 8 is fixedly arranged on the side surface of the netting 7.
In this embodiment, the net 7 is limited by the transmission belt 8, and the net 7 is prevented from deviating from the net roller 13 in the transmission process.
Specifically, the number of the through holes 18 is four, and every two of the four through holes 18 intersect perpendicularly.
In this embodiment, the four through holes 18 are arranged in a state of being vertically intersected every two, so that the upright posts 3 can be connected with the adjacent supporting rods 11 and can also be used for linearly splicing the supporting rods 11, and the volume of the net cage can be enlarged.
Specifically, the shape of the side surface of the bearing seat 12 is a concave arc, and the radian size of the concave arc of the side surface of the bearing seat 12 is matched with the side surface of the upright post 3.
In this embodiment, by providing the bearing housing 12, after the mesh roller 13 is fixed by the fixing strut 11, the bearing housing 12 can ensure that the mesh roller 13 can rotate, and at the same time, the mesh roller 13 can be centered.
Specifically, the surface of the screen plate 10 is provided with a plurality of insertion holes 26, the insertion holes 26 are uniformly distributed at the edge of the screen plate 10, the lower surface of the cover plate 24 is welded with the insertion blocks 25, and the positions of the insertion blocks 25 correspond to the positions of the insertion holes 26.
In this embodiment, the screen plate 10 is installed by using the cover plate 24 and the installation plate 23, so that the screen plate 10 can be completely unfolded, and the screen plate 10 can be conveniently detached and replaced by installing bolts.
A use method of an ecological green aquaculture net cage specifically comprises the following steps:
the method comprises the following steps: selecting the netting 7 corresponding to the mesh size according to the type of the fish fries cultured by a user, cutting the width of the netting 7 to be equal to the length of a net roller 13, cutting the length of the netting 7 to be twice of the height of an upright column, sewing the netting 7 together end to end, paying attention to the fact that the length of the sewn netting 7 corresponds to the distance between the net roller 13 and a rotating roller 14, and sewing a transmission belt 8 on two sides of the netting 7;
step two: selecting a lake which is sheltered from wind and exposed to the sun, has no pollution, is small in wind wave and flows slightly, avoiding water plants at the water depth of 3-7 m, positioning the lake by using iron anchors or stones, manufacturing a frame by using a bamboo or wood structure, filling an empty oil barrel to form a floating system, and finally splicing and installing a net cage for use;
step three: when the net cage is arranged, four mao bamboos are inserted into the mud at four corners, the four corners of the net cage are fixed on the mao bamboos by ropes, stones are used as sinkers at the bottoms of the four corners and are tied by the ropes, the four mao bamboos sink to the bottom of the water, the length of the ropes is adjusted, so that the net cage is fixed in water with a certain depth, can be lifted, and can be adjusted in depth to prevent the net cage from being washed away by storm water flow.
The working principle is that when the aquaculture net cage is put into use, the required size of the net cage is firstly determined, then two ends of a cross frame 1 are inserted into mounting blocks 2 at the bottoms of upright posts 3, inserted positions are fixedly mounted together by bolts, after four upright posts 3 are respectively mounted, a cover plate 24 on the side surface of the cross frame 1 is opened, then a net plate 10 is unfolded and fixedly mounted on a mounting plate 23 by the cover plate 24, after the bottom of the net cage is mounted, a netting 7 and a transmission belt 8 are sleeved on the surfaces of a net roller 13 and a rotating roller 14, then the transmission belt 8 is clamped into a belt groove 15, a net roller 13 is stretched, after the net roller 13 and a bearing seat 12 are sleeved on the surface of a supporting rod 11, two ends of the supporting rod 11 are respectively inserted into through holes 18 of adjacent upright posts 3 to tighten the transmission belt 8, then a nut is tightened to fix the supporting rod 11 and the upright posts 3, after the net roller 13 is fixed, and then the seam pressing plate 6 is folded, the seam pressing plate 6 is fastened by using a nut and a screw 21 to fix the netting 7, finally the net cage is put into use, when the netting 7 is damaged, the nut is screwed to open the seam pressing plate 6, and then the net roller 13 is rotated, so that the damaged part is conveniently transferred to the water surface for repairing.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an ecological green aquaculture box with a net, includes crossbearer (1), its characterized in that: the utility model discloses a novel roller bearing, including crossbearer (1), the both ends of crossbearer (3) are all fixed mounting has stand (3), annular (4) have been seted up on the surface of stand (3), the inner wall of annular (4) rotates and has cup jointed adapter ring (5), the side welding of adapter ring (5) has seam pressing plate (6), the last skin weld of crossbearer (1) has chassis (9), the inner wall of chassis (9) rotates through the pivot to be connected with changes roller (14), the bottom welding of stand (3) has installation piece (2), through-hole (18) have been seted up to the side that stand (3) are close to the top, the inner wall of through-hole (18) is pegged graft and is had branch (11), bearing frame (12) and net roller (13) have been cup jointed respectively on the surface of branch (11), the surface of net roller (13) is provided with netting (7), and net roller (13) and change roller (14) and pass through netting (7) transmission connection, the side welding of crossbearer (1) has mounting panel (23), the top of mounting panel (23) is provided with apron (24), mounting panel (23) and apron (24) fixed mounting have otter board (10) are passed through to the side of crossbearer (1).
2. An ecological green aquaculture net cage according to claim 1, characterized in that: fixture blocks (16) are welded at the two ends of the transverse frame (1), clamping grooves (17) are formed in the side faces of the mounting blocks (2), the shapes of the fixture blocks (16) are matched with the shapes of the inner walls of the clamping grooves (17), and the surfaces of the fixture blocks (16) and the inner walls of the clamping grooves (17) are fixedly mounted through bolts.
3. An ecological green aquaculture net cage according to claim 1, characterized in that: the quantity of seam board (6) has two, and two seam boards (6) are located the both sides of net roller (13) respectively, square groove (19) and logical groove (22) have been seted up respectively on the surface of two seam boards (6), the inner wall of square groove (19) rotates and is connected with axostylus axostyle (20), the side welding of axostylus axostyle (20) has screw rod (21), and the surface of screw rod (21) and the inner wall sliding connection who leads to groove (22).
4. The ecological green aquaculture net cage according to claim 1, characterized in that: the position of net roller (13) and commentaries on classics roller (14) is corresponding, and belt groove (15) have all been seted up on net roller (13) and the surface of changeing roller (14), the inner wall of belt groove (15) is provided with drive belt (8), drive belt (8) fixed mounting is in the side of etting (7).
5. The ecological green aquaculture net cage according to claim 1, characterized in that: the number of the through holes (18) is four, and the four through holes (18) are vertically intersected in pairs.
6. An ecological green aquaculture net cage according to claim 1, characterized in that: the shape of the side surface of the bearing seat (12) is a concave arc, and the radian size of the concave arc of the side surface of the bearing seat (12) is matched with the side surface of the upright post (3).
7. An ecological green aquaculture net cage according to claim 1, characterized in that: the screen plate is characterized in that insertion holes (26) are formed in the surface of the screen plate (10), the number of the insertion holes (26) is a plurality, the insertion holes (26) are evenly distributed at the edge of the screen plate (10), insertion blocks (25) are welded to the lower surface of the cover plate (24), and the positions of the insertion blocks (25) correspond to the positions of the insertion holes (26).
8. The use method of the ecological green aquaculture net cage is characterized by comprising the following steps:
the method comprises the following steps: selecting a net (7) corresponding to the mesh size according to the type of the fish fries cultured by a user, cutting the width of the net (7) to be equal to the length of a net roller (13), cutting the length of the net (7) to be twice of the height of an upright post (3), sewing the net (7) together end to end, paying attention to the fact that the length of the sewn net (7) corresponds to the distance between the net roller (13) and a rotating roller (14), and sewing a transmission belt (8) on two sides of the net (7);
step two: selecting a lake which is sheltered from wind and exposed to the sun, has no pollution, is small in wind wave and flows slightly, avoiding water plants at the water depth of 3-7 m, positioning the lake by using iron anchors or stones, manufacturing a frame by using a bamboo or wood structure, filling an empty oil barrel to form a floating system, and finally splicing and installing a net cage for use;
step three: when the net cage is arranged, four mao bamboos are inserted into the mud at four corners, the four corners of the net cage are fixed on the mao bamboos by ropes, stones are used as sinkers at the bottoms of the four corners and are tied by the ropes, the four mao bamboos sink to the bottom of the water, the length of the ropes is adjusted, so that the net cage is fixed in water with a certain depth, can be lifted, and can be adjusted in depth to prevent the net cage from being washed away by storm water flow.
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CN115191389B (en) * | 2022-08-11 | 2024-02-20 | 广东联塑精铟科技有限公司 | Net clothes connecting mechanism applied to net cage truss and mounting method thereof |
CN117356497B (en) * | 2023-10-23 | 2024-06-25 | 广东精铟海洋工程股份有限公司 | Lifting type deep sea aquaculture net cage |
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