CN112568117A - Floating algal reef for marine ranching construction - Google Patents
Floating algal reef for marine ranching construction Download PDFInfo
- Publication number
- CN112568117A CN112568117A CN202110001203.2A CN202110001203A CN112568117A CN 112568117 A CN112568117 A CN 112568117A CN 202110001203 A CN202110001203 A CN 202110001203A CN 112568117 A CN112568117 A CN 112568117A
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- hollow rod
- algal reef
- rod body
- hole
- connecting piece
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G33/00—Cultivation of seaweed or algae
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- 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
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- Life Sciences & Earth Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Environmental Sciences (AREA)
- Artificial Fish Reefs (AREA)
- Cultivation Of Seaweed (AREA)
Abstract
The invention discloses a floating algal reef for marine ranching construction, which comprises a frame body connected with a net body, wherein the frame body is formed by a hollow rod body and corner pieces, is connected with a floater through a floater rope and is connected with an anchor through a mooring rope; the frame body is provided with a hollow rod body in the middle of the frame body through a middle connecting piece; the two ends of the hollow rod body are plugged by the corner connecting pieces or the corner connecting pieces and the middle connecting piece, a rectangular through hole is processed at the middle position of the hollow rod body, a fixing part is arranged on the hollow rod body in the middle of the rectangular through hole, a guide rod coaxial with the hollow rod body is arranged on the fixing part, and an adjusting plug body is connected on the guide rod in a sliding manner; the rectangular through hole at the middle position of the hollow rod body is sealed by the upper cover body, the lower cover body and the sealing ring body. The invention can realize the expandability of the floating algal reef and the adjustability of the floating algal reef on the vertical height after being put in, so that the macroalgae attached to the floating algal reef has larger attachment area, better light receiving performance and depth, and can promote the growth of the macroalgae and the like.
Description
Technical Field
The invention belongs to the field of algal reefs, and particularly relates to a floating algal reef for marine ranching construction.
Background
The marine ranch is based on the principle of a marine ecosystem, and is characterized in that places required by marine organism breeding, growth, bait feeding or enemy avoidance are constructed or repaired in a specific sea area through measures such as artificial fish reefs, proliferation and releasing, fishery resources are proliferated and maintained, the ecological environment of the sea area is improved, and a fishery mode which is sustainable and beneficial to the fishery resources is realized. The marine ranch is a new state of marine agriculture integrating environmental protection, ecological restoration, resource maintenance and marine fishery, and is one of effective modes for realizing transformation and upgrading of marine fishery and conversion of new and old kinetic energy of marine agriculture.
The construction of seaweed farms is one of the important contents for the construction of marine ranches in China. The seaweed field is a near-shore marine ecosystem which is formed by large-scale seaweed and a plurality of marine organisms, is one of the ecosystems with the highest primary productivity in the world, and can provide habitats, foraging places and breeding sheltering places for the plurality of marine organisms. The macroalgae absorbs nutrient salts such as nitrogen and phosphorus in the ocean and plays an important role in maintaining the biological resources of the marine fishery and maintaining the stability of the marine ecosystem. The area of the seaweed field in China seriously declines, and the loss of a large amount of seaweed fields leads the living organisms relying on the seaweed fields to face the threat of losing the living habitat, and the loss of the suitable living habitat is just one of the reasons for the great decline of the current biological resources in China. On the other hand, the deterioration of the seaweed field leads the ecological environment restoration function to be damaged, and further aggravates the condition of ecological environment deterioration in China.
At present, the modern marine ranch construction is highly valued, and the modern marine ranch is developed, constructed and propelled in 2017 and 2019. In the process of constructing the modern marine ranch in China, how to effectively restore and rebuild the habitat of the seaweed field in China and recover the ecological function of the seaweed field is a content which must be paid attention to in the construction of the modern marine ranch in China.
Aiming at the characteristics of the marine field of the marine ranching in China, the artificial algal reefs are designed scientifically and reasonably, and the suitable conditions for the survival of the large-scale seaweed are created, so that the method is a key technical problem which must be solved for developing the construction of the marine ranching seaweed field in China. At present, the design, manufacture and putting in of the floating artificial algal reefs are a feasible way for constructing the marine alga field in the marine ranching of China. The floating algal reef needs to have enough algal attachment area, good light receiving condition, good stability and be convenient for characteristics such as transportation, removal and recovery, still needs to have the function of adjusting vertical depth etc. and current floating algal reef can not satisfy above-mentioned requirement well.
Disclosure of Invention
The invention aims to provide a floating algal reef for marine ranching construction, which can realize expandability of the floating algal reef and adjustability of the floating algal reef on the vertical height after throwing, so that macroalgae attached to the floating algal reef has a large attachment area, good light receiving performance and proper depth, and growth of macroalgae and the like is promoted.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the floating algal reef for marine ranching construction comprises a hollow rod body, wherein the hollow rod body forms a frame body through a corner connecting piece, a net body is fixed in the frame body, one end of a float rope is fixed on the hollow rod body and/or the corner connecting piece, the other end of the float rope is connected with a floater, one end of a mooring rope is fixed at the bottom of the hollow rod body and/or the corner connecting piece, an anchor is fixed at the other end of the mooring rope, the hollow rod bodies in the same straight line direction are connected through a middle connecting piece, and the middle connecting pieces at two sides of the frame body are connected through the hollow rod body; the two ends of the hollow rod body are plugged by the corner connecting pieces or the corner connecting pieces and the middle connecting piece, a rectangular through hole is processed at the middle position of the hollow rod body, a fixing part is arranged on the hollow rod body in the middle of the rectangular through hole, a guide rod coaxial with the hollow rod body is arranged on the fixing part, and an adjusting plug body is connected on the guide rod in a sliding manner; the rectangular through hole at the middle position of the hollow rod body is sealed by the upper cover body, the lower cover body and the sealing ring body.
Furthermore, threaded holes are formed in two sides of the fixing portion, connecting bolts are connected with the threaded holes in an internal thread mode, the connecting bolts sequentially penetrate through the upper cover body, the fixing portion and the lower cover body from top to bottom, and the top end and the bottom end of each connecting bolt are located outside the hollow rod body respectively.
Furthermore, the bottom of the connecting bolt is connected with a cable, and the top of the connecting bolt is connected with a float rope.
Furthermore, reinforcing ribs are arranged inside the hollow rod bodies, the reinforcing ribs are positioned on the hollow rod bodies on two sides of the rectangular through hole, net body fixing parts are arranged outside the hollow rod bodies at positions corresponding to the reinforcing ribs, and the net body fixing parts are distributed along the length direction of the reinforcing ribs.
Furthermore, sliding grooves consistent with the longitudinal section of the reinforcing rib are formed in the two sides of the adjusting plug body, a hole formed by matching the adjusting plug body and the guide rod is a blind hole, and a plug body bulge is arranged at one end, moving into the hollow rod body, of the adjusting plug body.
Furthermore, the plug body bulge is nested with a rubber piece, and the diameter of the rubber piece is slightly larger than the inner diameter of the hollow rod body.
Compared with the prior art, the invention has the beneficial effects that:
the invention not only can realize the functions of the traditional floating algal reef, but also has expandability and flexibility as well as distance adjustability in the vertical direction, and effectively ensures that the algae attached to the floating algal reef can have sufficient growth space and proper depth and illumination conditions.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of a hollow rod body according to the present invention.
Fig. 3 is a schematic view of the structure of the regulating plug body of the present invention.
In the figure: 1. a float; 2. a float rope; 3. a corner connector; 4. a hollow rod body; 5. an upper cover body; 6. a connecting bolt; 7. a net body; 8. a net body fixing piece; 9. a middle connecting piece; 10. a cable; 11. an anchor; 12. a lower cover body; 13. adjusting the plug body; 14. the plug body is convex; 15. a fixed part; 16. and (5) reinforcing ribs.
Detailed Description
The technical solution of the present invention will be further described and illustrated with reference to the following examples. It should be noted that the following paragraphs may refer to terms of orientation, including but not limited to "upper, lower, left, right, front, rear" and the like, which are all based on the visual orientation shown in the drawings corresponding to the specification, and should not be construed as limiting the scope or technical aspects of the present invention, but merely as facilitating better understanding of the technical aspects of the present invention by those skilled in the art.
In the description of the present specification, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
A floating algal reef for marine ranching construction comprises a hollow rod body 4, wherein the hollow rod body 4 forms a frame body through a corner connecting piece 3, a net body 7 is fixed in the frame body, one end of a float rope 2 is fixed on the hollow rod body 4 and/or the corner connecting piece 3, the other end of the float rope 2 is connected with a float 1, one end of a cable 10 is fixed at the bottom of the hollow rod body 4 and/or the corner connecting piece 3, an anchor 11 is fixed at the other end of the cable 10, the hollow rod bodies 4 in the same straight line direction are connected through a middle connecting piece 9, and the middle connecting pieces 9 at two sides of the frame body are connected through the hollow rod body 4; the two ends of the hollow rod body 4 are blocked by the corner connecting pieces 3 or the corner connecting pieces 3 and the middle connecting piece 9, a rectangular through hole is processed in the middle of the hollow rod body 4, a fixing part 15 is arranged on the hollow rod body 4 in the middle of the rectangular through hole, a guide rod 17 coaxial with the hollow rod body 4 is arranged on the fixing part 15, and an adjusting plug body 13 is connected onto the guide rod 17 in a sliding mode; the rectangular through hole at the middle position of the hollow rod body 4 is sealed by the upper cover body 5, the lower cover body 12 and the sealing ring body.
Example 2
A floating algal reef for marine ranching construction is characterized in that threaded holes are formed in two sides of a fixing portion 15, connecting bolts 6 are connected to the threaded holes in a threaded mode, the connecting bolts 6 sequentially penetrate through an upper cover body 5, the fixing portion 15 and a lower cover body 12 from top to bottom, and the top ends and the bottom ends of the connecting bolts 6 are located outside a hollow rod body 4 respectively; the bottom of the connecting bolt 6 is connected with a mooring rope 10, and the top of the connecting bolt 6 is connected with a float rope 2; reinforcing ribs 16 are arranged inside the hollow rod bodies 4, the reinforcing ribs 16 are positioned on the hollow rod bodies 4 on two sides of the rectangular through hole, net body fixing parts 8 are arranged outside the hollow rod bodies 4 at positions corresponding to the reinforcing ribs 16, and the net body fixing parts 8 are distributed along the length direction of the reinforcing ribs 16; the two sides of the adjusting plug body 13 are provided with sliding grooves 18 with the same longitudinal sections as the reinforcing ribs 16, the hole where the adjusting plug body 13 is matched with the guide rod 17 is a blind hole, and a plug body bulge 14 is arranged at one end of the adjusting plug body 13 moving towards the inside of the hollow rod body 4; the plug body bulge 14 is nested with a rubber part, and the diameter of the rubber part is slightly larger than the inner diameter of the hollow rod body 4. The structure and connection relationship of the rest parts are the same as those described in any of the foregoing embodiments, and are not described herein again to avoid the tedious text.
On the basis of the above embodiments, the present invention continues to describe the technical features and functions of the technical features in the present invention in detail to help those skilled in the art fully understand the technical solutions of the present invention and reproduce them.
In the invention, the hollow rod body 4 adopts a corner connecting piece 3 structure to realize the plugging of two ends and the realization of a frame body. Specifically, the corner connector 3 is located at a corner of the frame body, and can be fixed to the float rope 3 in addition to connecting the hollow rod body 4, and the float 1 is fixed to one end of the float rope 3.
In the present invention, in order to realize the connection between the plurality of hollow rods 4 in the same linear direction in the frame body and to add the hollow rods 4 in the rectangular frame body, the middle connecting member 9 can be used for realizing the connection. The middle connecting piece 9 is a three-way connecting piece, and a frame structure in various forms can be realized through the middle connecting piece 9 and the corner connecting piece 3.
In the invention, the two sides of the interior of the hollow rod body 4 are provided with reinforcing ribs 16, the outer side of the hollow rod body 4 corresponding to the reinforcing ribs 16 is provided with a net body fixing part 8, and the net body fixing part 8 is distributed along the length direction of the reinforcing ribs 16. Net body mounting 8 comprises the convex body of rod of buckling into, and the form that can weld or pass through the connecting piece constitutes integratively with cavity body of rod 4 to can be used for the rope body at net body 7 border fixed, realize being connected of net body 7 and cavity body of rod 4, it is also comparatively convenient when the net body 7 takes place the damage and needs to change.
In the present invention, the net fixing members 8 are preferably disposed on the inner sides of the hollow rods 4, and the net fixing members 8 on adjacent hollow rods 4 are located on the same plane. Of course, in the present invention, the net body fixing part 8 may be disposed outside the hollow rod body 4. When dictyosome mounting 8 sets up in the outside of the hollow rod body 4, it can realize through flexible rope or rigid rod that fixed and connection between the adjacent framework realize then that floating algal reef's one slice sets up and fixes.
In the invention, a rectangular through hole for placing and adjusting the position of the adjusting plug body 13 is formed in the middle of the hollow rod body 4, and the rectangular through hole can be covered by the sealing ring body, the upper cover body 5 and the lower cover body 12. Specifically, in the process of throwing the floating algal reef, the upward acting force of the floating algal reef comprises buoyancy generated by the floating reef in seawater and buoyancy generated by the floater 1 through the floater rope 2, and the downward acting force of the floating algal reef mainly comes from downward acting force exerted by the anchor 11 through the cable 10 and gravity of the frame body. To realize the height adjustment of the floating algal reef relative to the sea level, an adjusting floater 1, a floater rope 2, an anchor 11 and a cable 10 are generally adopted. And in the in-service use process, through the regulation to the self weight of the hollow rod body 4, can effectively realize the degree of floating algal reef in the sea water, can finely tune the weight of floating algal reef according to the survey data before putting in, avoid adjusting and testing the float including float 1, float rope 2, anchor 11 and the corresponding cooperation of hawser 10.
Specifically, the weight of the hollow rod is adjusted by adjusting the size of the internal space of the hollow rod in the invention. Firstly, because adjust cock body 13 can be through the motion in the hollow body of rod 4, behind the intussuseption of hollow body of rod 4 internal filling air or counter weight thing, can carry out spacing fixed to above-mentioned filler through adjusting cock body 13, then stably realize the distribution and the counter weight of hollow body of rod self weight. Secondly, because the hollow rod bodies 4 constituting the frame body are all rod bodies with the same length, after the hollow rod bodies 4 are filled with equivalent weights, the weight in the frame body can be distributed uniformly and kept balanced. When a balance weight needs to be added at a certain position, and the floating algal reef is inclined, the inner space of the hollow rod body 4 in the area can be independently adjusted, and then the balance weight is increased or reduced. In order to ensure the air tightness of the connection between the regulating cock body 13 and the hollow rod body 4, a rubber piece with a circular section can be embedded in the cock body bulge 14 at the end part of the regulating cock body 13, and the diameter of the rubber piece is slightly larger than the inner diameter of the hollow rod body 4.
In the invention, the sliding grooves 18 are processed on two sides of the adjusting plug body 13, and the sliding grooves 18 can be matched with the reinforcing ribs 16 on two sides of the hollow rod body 4, so that the adjusting plug body 13 is circumferentially fixed in the hollow rod body 4 and can move along the length direction of the hollow rod body 4. Meanwhile, a blind hole is processed in the central axis of the tail of the adjusting plug body 13 and is inserted into the guide rod 17, and the adjusting plug body 13 can slide relative to the guide rod 17 through the blind hole. Meanwhile, an external thread is processed on the guide rod 17, and a fastening nut is connected through the external thread. The fastening nut can be relatively rotated on the guide rod 17 along the external thread to adjust and fix the relative position of the adjusting plug body 13 extending into the hollow rod body 4.
In the present invention, the hollow rod 4 is provided with a fixing portion 15 in the rectangular through hole, and the fixing portion 15 and the hollow rod 4 are integrated. Meanwhile, threaded holes are formed in two sides of the top end face of the fixing portion 15, and the connecting bolt 6 can sequentially penetrate through the upper cover body 5, the fixing portion 15 and the lower cover body 12 from top to bottom and is connected with the fixing portion, the fixing portion and the lower cover body through threads at a penetrating position. Sealing rings are arranged at the contact positions of the upper cover body 5, the lower cover body 12 and the periphery of the rectangular through hole of the hollow rod body 4.
Finally, although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description of the present description is for clarity reasons only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims (6)
1. The utility model provides a floating algal reef for marine ranch construction, includes the cavity body of rod (4), and the cavity body of rod (4) constitutes the framework through corner connecting piece (3), and the framework internal fixation has dictyosome (7), be fixed with the one end of float rope (2) on the cavity body of rod (4) and/or corner connecting piece (3), the other end of float rope (2) is connected with float (1), and the bottom of the cavity body of rod (4) and/or corner connecting piece (3) is fixed with the one end of hawser (10), and the other end of hawser (10) is fixed with anchor (11), its characterized in that: the hollow rod bodies (4) in the same straight line direction are connected through the middle connecting pieces (9), and the middle connecting pieces (9) on the two sides of the frame body are connected through the hollow rod bodies (4); the two ends of the hollow rod body (4) are plugged by the corner connecting piece (3) or the corner connecting piece (3) and the middle connecting piece (9), a rectangular through hole is processed at the middle position of the hollow rod body (4), a fixing part (15) is arranged on the hollow rod body (4) in the middle of the rectangular through hole, a guide rod (17) coaxial with the hollow rod body (4) is arranged on the fixing part (15), and an adjusting plug body (13) is connected onto the guide rod (17) in a sliding manner; the rectangular through hole at the middle position of the hollow rod body (4) is sealed by the upper cover body (5), the lower cover body (12) and the sealing ring body.
2. The floating algal reef for marine ranch construction of claim 1 wherein: threaded holes are processed in two sides of the fixing portion (15), connecting bolts (6) are connected in the threaded holes in a threaded mode, the connecting bolts (6) penetrate through the upper cover body (5), the fixing portion (15) and the lower cover body (12) from top to bottom in sequence, and the top end and the bottom end of each connecting bolt (6) are located outside the hollow rod body (4) respectively.
3. The floating algal reef for marine ranch construction of claim 2 wherein: the bottom of the connecting bolt (6) is connected with a mooring rope (10), and the top of the connecting bolt (6) is connected with a float rope (2).
4. The floating algal reef for marine ranch construction of claim 1 wherein: the hollow rod body (4) is internally provided with a reinforcing rib (16), the reinforcing rib (16) is positioned on the hollow rod body (4) at two sides of the rectangular through hole, a net body fixing part (8) is arranged outside the hollow rod body (4) at the position corresponding to the reinforcing rib (16), and the net body fixing part (8) is distributed along the length direction of the reinforcing rib (16).
5. The floating algal reef for marine ranch construction of claim 4 wherein: the both sides of adjusting cock body (13) are processed and are had spout (18) unanimous with strengthening rib (16) longitudinal section, adjust cock body (13) and guide bar (17) complex hole and be the blind hole, be provided with cock body arch (14) in the one end of adjusting cock body (13) to the interior motion of the cavity body of rod (4).
6. The floating algal reef for marine ranch construction of claim 5 wherein: the plug body bulge (14) is nested with a rubber piece, and the diameter of the rubber piece is slightly larger than the inner diameter of the hollow rod body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110001203.2A CN112568117B (en) | 2021-01-04 | 2021-01-04 | Floating algal reef for marine ranching construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110001203.2A CN112568117B (en) | 2021-01-04 | 2021-01-04 | Floating algal reef for marine ranching construction |
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| CN112568117A true CN112568117A (en) | 2021-03-30 |
| CN112568117B CN112568117B (en) | 2022-05-31 |
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| CN202110001203.2A Active CN112568117B (en) | 2021-01-04 | 2021-01-04 | Floating algal reef for marine ranching construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114128618A (en) * | 2021-12-13 | 2022-03-04 | 广东海洋大学 | Gracilaria seed protection device and method |
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| JPH1042744A (en) * | 1996-07-31 | 1998-02-17 | Alpha Suiko Consultants:Kk | Sink and float type seaweed reef |
| JPH11113432A (en) * | 1997-10-15 | 1999-04-27 | Toray Ind Inc | Floating greened reef |
| CN101096222A (en) * | 2006-06-28 | 2008-01-02 | 韩燕� | Split boat and water float |
| CN102998058A (en) * | 2012-10-30 | 2013-03-27 | 吴江新劲纺织有限公司 | Dynamic balance adjusting device for roll shaft |
| CN104429911A (en) * | 2014-11-10 | 2015-03-25 | 中国海洋大学 | Automatic lifting type algae turf system and artificial algae field establishing method thereof |
| CN104429890A (en) * | 2014-05-15 | 2015-03-25 | 浙江海洋学院 | Floating-type alga reef |
| CN107135998A (en) * | 2017-07-07 | 2017-09-08 | 青岛谊深海洋科技有限公司 | A kind of floating cage Deep sea net cage |
| CN109126070A (en) * | 2018-11-16 | 2019-01-04 | 锦美运动用品（东莞）有限公司 | A kind of golf club head of angle adjustable and counterweight |
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2021
- 2021-01-04 CN CN202110001203.2A patent/CN112568117B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1042744A (en) * | 1996-07-31 | 1998-02-17 | Alpha Suiko Consultants:Kk | Sink and float type seaweed reef |
| JPH11113432A (en) * | 1997-10-15 | 1999-04-27 | Toray Ind Inc | Floating greened reef |
| CN101096222A (en) * | 2006-06-28 | 2008-01-02 | 韩燕� | Split boat and water float |
| CN102998058A (en) * | 2012-10-30 | 2013-03-27 | 吴江新劲纺织有限公司 | Dynamic balance adjusting device for roll shaft |
| CN104429890A (en) * | 2014-05-15 | 2015-03-25 | 浙江海洋学院 | Floating-type alga reef |
| CN104429911A (en) * | 2014-11-10 | 2015-03-25 | 中国海洋大学 | Automatic lifting type algae turf system and artificial algae field establishing method thereof |
| CN107135998A (en) * | 2017-07-07 | 2017-09-08 | 青岛谊深海洋科技有限公司 | A kind of floating cage Deep sea net cage |
| CN109126070A (en) * | 2018-11-16 | 2019-01-04 | 锦美运动用品（东莞）有限公司 | A kind of golf club head of angle adjustable and counterweight |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114128618A (en) * | 2021-12-13 | 2022-03-04 | 广东海洋大学 | Gracilaria seed protection device and method |
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