CN213992147U - Small water body aquaculture life support system - Google Patents
Small water body aquaculture life support system Download PDFInfo
- Publication number
- CN213992147U CN213992147U CN202022941147.4U CN202022941147U CN213992147U CN 213992147 U CN213992147 U CN 213992147U CN 202022941147 U CN202022941147 U CN 202022941147U CN 213992147 U CN213992147 U CN 213992147U
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- Prior art keywords
- water
- box
- pipe
- spring
- breeding
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 238000009360 aquaculture Methods 0.000 title claims abstract description 17
- 244000144974 aquaculture Species 0.000 title claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229940088594 vitamin Drugs 0.000 claims abstract description 8
- 229930003231 vitamin Natural products 0.000 claims abstract description 8
- 235000013343 vitamin Nutrition 0.000 claims abstract description 8
- 239000011782 vitamin Substances 0.000 claims abstract description 8
- 150000003722 vitamin derivatives Chemical class 0.000 claims abstract description 8
- 239000006004 Quartz sand Substances 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims abstract 3
- 230000002146 bilateral effect Effects 0.000 claims abstract 2
- 238000009434 installation Methods 0.000 claims description 19
- 238000003860 storage Methods 0.000 claims description 18
- 238000009395 breeding Methods 0.000 claims description 15
- 230000001488 breeding effect Effects 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 229920001875 Ebonite Polymers 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 241000220317 Rosa Species 0.000 claims 5
- 230000001681 protective effect Effects 0.000 abstract description 7
- 241000251468 Actinopterygii Species 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 2
- 239000003344 environmental pollutant Substances 0.000 description 8
- 231100000719 pollutant Toxicity 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-BJUDXGSMSA-N carbon-11 Chemical class [11C] OKTJSMMVPCPJKN-BJUDXGSMSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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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- Farming Of Fish And Shellfish (AREA)
Abstract
The utility model discloses a small water body aquaculture vitamin system, which comprises a culture box, wherein the bottom of the inner wall of the culture box is provided with a mounting ring, the inner side of the mounting ring is provided with a protective net, the bilateral symmetry of the top of the protective net is provided with a hook, the bottom of one side of the culture box is provided with a water pipe, a water pump is arranged between the water inlet and the water outlet of the water pipe, the top of one side of the culture box is provided with a filter box, and the top of the inner wall of the filter box is provided with a filter screen; the utility model discloses a under the cooperation of water service pipe, water pump, water service board A, water service board B, filter screen, quartz sand and active carbon, can guarantee to breed the flow of incasement water, filter water simultaneously, absorb the harmful substance in the water, guarantee the health of fish, under the cooperation through shovel board, push rod, spring B, spring A, go-between and cang gai, can clear away the accumulational debris on the filter screen, improved the convenience.
Description
Technical Field
The utility model relates to an aquaculture technical field specifically is a little water aquaculture system of keeping fit.
Background
The aquaculture industry is an important plate for the utilization of aquatic organism resources, and along with the continuous expansion of the culture scale and the continuous progress of intensive process, the negative effects caused by the continuous expansion and the intensive progress are gradually shown, the dilemma of resources, environmental protection and technology are faced all the time, the high consumption, high pollution, high risk and low output caused by the problems of feed waste, diseases, environment, aquatic product quality and the like seriously inhibit the industrial development, the industrial circulating water culture effectively solves the problems of high-density culture, small environmental pollution, ecological disaster and the like caused by the discharge, the abuse of antibiotics, difficult control of diseases and escape of culture pollutants and the like due to the characteristics of closing, high efficiency, whole-process controllability and the like, the mode takes the treatment and the cyclic utilization of culture water as the core characteristic, saves electricity, water and land, and meets the strategic requirements of the circular economy, the energy conservation, the emission reduction and the economic growth mode proposed by the current country, will become the inevitable development trend of the aquaculture mode in China;
the prior device has the following defects:
in the culture process, pollutants formed by residual feed and fish excrement in the culture pond cause serious pollution to water, sediments and the like, and are not beneficial to high-volume production of aquatic products; during cultivation, feeding is carried out manually, and the feeding amount cannot be controlled manually.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a small water body aquaculture life support system, which aims to solve the problems that in the background technology, the pollutants formed by the residual feed and fish excrement in the culture pond cause serious pollution to water bodies, sediments and the like in the culture process, and are not beneficial to the high-volume production of aquatic products; the feeding is carried out manually during the cultivation, and the manual work can not control the feeding amount.
In order to achieve the above object, the utility model provides a following technical scheme: a small water body aquaculture vitamin system comprises a culture box, wherein a mounting ring is arranged at the bottom of the inner wall of the culture box, a protective net is arranged on the inner side of the mounting ring, hooks are symmetrically arranged on two sides of the top of the protective net, a water through pipe is arranged at the bottom of one side of the culture box, a water pump is arranged between a water inlet and a water outlet of the water through pipe, a filter box is arranged at the top of one side of the culture box, a filter screen is arranged at the top of the inner wall of the filter box, a water through plate B is arranged in the middle of the inner wall of the filter box, a water through plate A is arranged at the bottom of the inner wall of the filter box, activated carbon is arranged at the top of the water through plate A, quartz sand is arranged at the top of the activated carbon, a water injection pipe is arranged at the bottom of one side of the filter box, one side of the water injection pipe extends to the inside of the culture box, and a bin cover is hinged to the top of one end of the filter box, the two sides of the top of one end of the filter box are symmetrically provided with connecting rings, one end of each connecting ring extends into the filter box, the outer side of each connecting ring is provided with a spring A, the middle of one end of the filter box is provided with a control panel, the middle of the top of one end of the filter box, which is far away from the cover, is provided with a push rod, one end of the push rod extends into the filter box and is provided with a shovel plate, the outer side of the push rod is provided with a spring B, the top of one end of the cultivation box is provided with an air pump, the output end of the air pump is provided with an air pipe, an air outlet of the air pipe extends into the cultivation box, the top of one side of the cultivation box is provided with an installation bin, the middle of the bottom inside the installation bin is provided with an installation rod, the outer side of the installation rod is provided with a coil spring, the inside of the installation bin is provided with a storage box, and the coil spring is connected with the bottom of the storage box, one side of installation storehouse and storage case all is provided with the opening, the bottom of installation storehouse one side articulates there is the discharging pipe, one side of discharging pipe bottom is provided with the loop bar, the outside of loop bar is provided with spring C, spring C links to each other with the installation storehouse, one side of discharging pipe articulates there is the lid, the top of lid is provided with the inserted bar, the both ends symmetry of discharging pipe top one side is provided with the clamp splice, control panel passes through the wire and is connected with water pump and air pump respectively.
Preferably, one end of the cultivation box is provided with a glass plate.
Preferably, the top of the storage box is provided with a feeding port, and the top of the feeding port is provided with a cover plate.
Preferably, the bottom of the interior of the cultivation box is provided with a guide plate.
Preferably, a mounting plate is arranged right below the air pump.
Preferably, the clamping block is made of a hard rubber material.
Compared with the prior art, the beneficial effects of the utility model are that: the small water body aquaculture life support system;
1. under the cooperation of the water pipe, the water pump, the water passing plate A, the water passing plate B, the filter screen, the quartz sand and the activated carbon, the flowing of water in the culture box can be ensured, meanwhile, the water is filtered, harmful substances in the water are absorbed, the health of fishes is ensured, and sundries accumulated on the filter screen can be cleaned out under the cooperation of the shovel plate, the push rod, the spring B, the spring A, the connecting ring and the bin cover, so that the convenience is improved;
2. by the cooperation of the mounting rod, the coil spring, the loop rod, the cover, the inserted rod, the clamping block and the spring C, the feeding amount at each time can be controlled, the excessive or insufficient feeding amount is prevented, the breeding difficulty is reduced, and the convenience is improved;
3. under the cooperation through protection network, couple and collar, dismouting couple that can be quick when preventing that the protection network from blockking up, can't clear up it.
Drawings
Fig. 1 is a front sectional view of the present invention;
FIG. 2 is a front view of the present invention;
fig. 3 is a side view of the present invention;
FIG. 4 is a side cross-sectional view of the shovel plate of the present invention;
fig. 5 is an enlarged schematic view of a structure in fig. 1 according to the present invention.
In the figure: 1. a breeding box; 2. a port; 3. a water pipe; 4. a water pump; 5. a protective net; 6. a water passing plate A; 7. a water passing plate B; 8. a filter screen; 9. a shovel plate; 10. quartz sand; 11. activated carbon; 12. a filter box; 13. a water injection pipe; 14. a breather pipe; 15. hooking; 16. a mounting ring; 17. a control panel; 18. A spring A; 19. a connecting ring; 20. a bin cover; 21. a discharge pipe; 22. installing a bin; 23. a material storage box; 24. A coil spring; 25. mounting a rod; 26. a push rod; 27. a spring B; 28. an air pump; 29. a loop bar; 30. a cover; 31. inserting a rod; 32. a clamping block; 33. and a spring C.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides an embodiment: a small water body aquaculture life support system comprises a culture box 1, wherein a mounting ring 16 is arranged at the bottom of the inner wall of the culture box 1, a protective screen 5 is arranged on the inner side of the mounting ring 16, hooks 15 are symmetrically arranged on two sides of the top of the protective screen 5, a water pipe 3 is arranged at the bottom of one side of the culture box 1, a water pump 4 is arranged between a water inlet and a water outlet of the water pipe 3, a filter box 12 is arranged at the top of one side of the culture box 1, a filter screen 8 is arranged at the top of the inner wall of the filter box 12, a water passing plate B7 is arranged in the middle of the inner wall of the filter box 12, a water passing plate A6 is arranged at the bottom of the inner wall of the filter box 12, activated carbon 11 is arranged at the top of the water passing plate A6, quartz sand 10 is arranged at the top of the activated carbon 11, a water injection pipe 13 is arranged at the bottom of one side of the filter box 12, one side of the water injection pipe 13 extends to the interior of the culture box 1, a bin cover 20 is hinged to the top of one end of the filter box 12, the two sides of the top of one end of the filter box 12 are symmetrically provided with connecting rings 19, one end of each connecting ring 19 extends into the filter box 12, the outer side of each connecting ring 19 is provided with a spring A18, the middle of one end of the filter box 12 is provided with a control panel 17, the middle of the top of one end of the filter box 12, which is far away from the bin cover 20, is provided with a push rod 26, one end of each push rod 26 extends into the filter box 12 and is provided with a shovel plate 9 capable of shoveling away pollutants, the outer side of each push rod 26 is provided with a spring B27, the top of one end of the culture box 1 is provided with an air pump 28, the output end of the air pump 28 is provided with a vent pipe 14, the air outlet of the vent pipe 14 extends into the culture box 1, the top of one side of the culture box 1 is provided with a mounting bin 22, the middle of the bottom inside of the mounting bin 22 is provided with a mounting rod 25, the outer side of the mounting rod 25 is provided with a coil spring 24, the inside of the mounting bin 22 is provided with a storage bin 23, the coil spring 24 is connected with the bottom of the storage box 23, one side of the installation bin 22 and one side of the storage box 23 are provided with through openings 2, the bottom of one side of the installation bin 22 is hinged with a discharge pipe 21, one side of the bottom of the discharge pipe 21 is provided with a loop bar 29, the outer side of the loop bar 29 is provided with a spring C33, a spring C33 is connected with the installation bin 22, one side of the discharge pipe 21 is hinged with a cover 30, stopping is carried out on feed, the top of the cover 30 is provided with an inserted bar 31, two ends of one side of the top of the discharge pipe 21 are symmetrically provided with clamping blocks 32, and the control panel 17 is connected with a water pump 4 and an air pump 28 through wires respectively.
The control panel 17, the water pump 4 and the air pump 28 in the device are in the prior art, and the composition structure and the connection mode of the device are completely the same as those of the prior device.
Furthermore, one end of the breeding box 1 is provided with a glass plate, so that the fish inside the breeding box can be observed conveniently.
Further, the top of storage case 23 is provided with the pan feeding mouth, and the pan feeding mouth top is provided with the apron, conveniently adds the fodder.
Further, the bottom of breeding 1 inside of case sets up the deflector, conveniently piles up the pollutant together.
Further, a mounting plate is arranged right below the air pump 28, so that the air pump 28 is convenient to mount.
Further, the clamping block 32 is made of hard rubber material, so that the inserted rod 31 can be conveniently clamped.
The working principle is as follows: the electric parts of the device are all supplied with power by an external power supply, when feeding is carried out, the storage box 23 is rotated to enable the through hole 2 on the storage box 23 to coincide with the through hole 2 on the mounting bin 22, then the feed in the storage box 23 can enter the discharge pipe 21, when the feed enters the discharge pipe 21 under the elastic action of the spring C33, one side of the discharge pipe 21 can be driven to move downwards, under the action of thrust and gravity of the feed, the inserted rod 31 can be separated from the clamping block 32, the cover 30 can be opened, then the feed in the discharge pipe 21 can enter the breeding box 1, when the inserted rod 31 is opened, the storage box 23 is loosened, under the action of the coil spring 24, the through hole 2 is closed when the storage box 23 is reset, when the feed in the discharge pipe 21 is poured, the discharge pipe 21 can slowly move upwards, and finally the cover 30 is manually closed;
during filtering, the water pump 4 is turned on through the control panel 17, water in the culture box 1 can drive residual feed and fish excrement to enter the filter screen 8 through the water pipe 3, the pollutants can be filtered on the filter screen 8, the water enters the culture box 1 through the water injection pipe 13 under the filtering of quartz sand 10 and active carbon 11, then the push rod 26 is pushed to drive the shovel plate 9 to shovel the pollutants together, the shovel plate 9 pushes the bin cover 20 to prop the bin cover 20 open, the shovel plate 9 can push the pollutants out, the push rod 26 is loosened after treatment, at the moment, the spring B27 drives the push rod 26 and the shovel plate 9 to reset, and the bin cover 20 is closed again under the action of the spring A18;
when the protection net 5 needs to be cleaned, the protection net 5 only needs to be lifted out to be cleaned, the protection net 5 can be hung on the mounting ring 16 under the action of the hook 15, and oxygen in the water can be ensured by injecting oxygen in the air into the water through the vent pipe 14 under the action of the air pump 28.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (6)
1. The utility model provides a little water body aquaculture vitamin system, includes breed case (1), its characterized in that: the bottom of breeding case (1) inner wall is provided with collar (16), the inboard of collar (16) is provided with protection network (5), the bilateral symmetry at protection network (5) top is provided with couple (15), the bottom of breeding case (1) one side is provided with water service pipe (3), be provided with water pump (4) between the water inlet of water service pipe (3) and the delivery port, the top of breeding case (1) one side is provided with rose box (12), the top of rose box (12) inner wall is provided with filter screen (8), the centre of rose box (12) inner wall is provided with water service plate B (7), the bottom of rose box (12) inner wall is provided with water service plate A (6), the top of water service plate A (6) is provided with active carbon (11), the top of active carbon (11) is provided with quartz sand (10), the bottom of rose box (12) one side is provided with water injection pipe (13), one side of the water injection pipe (13) extends to the inside of the breeding box (1), a bin cover (20) is hinged to the top of one end of the filtering box (12), connecting rings (19) are symmetrically arranged on two sides of the top of one end of the filtering box (12), one end of each connecting ring (19) extends to the inside of the filtering box (12), a spring A (18) is arranged on the outer side of each connecting ring (19), a control panel (17) is arranged in the middle of one end of the filtering box (12), a push rod (26) is arranged in the middle of the top of one end of the bin cover (20) far away from the filtering box (12), one end of the push rod (26) extends to the inside of the filtering box (12) and is provided with a shovel plate (9), a spring B (27) is arranged on the outer side of the push rod (26), an air pump (28) is arranged on the top of one end of the breeding box (1), and an output end of the air pump (28) is provided with an air vent pipe (14), and the gas outlet of breather pipe (14) extends to the inside of breeding case (1), the top of breeding case (1) one side is provided with installation bin (22), the centre of the inside bottom of installation bin (22) is provided with installation pole (25), the outside of installation pole (25) is provided with wind spring (24), the inside of installation bin (22) is provided with storage tank (23), wind spring (24) links to each other with the bottom of storage tank (23), one side of installation bin (22) and storage tank (23) all is provided with opening (2), the bottom of installation bin (22) one side articulates there is discharging pipe (21), one side of discharging pipe (21) bottom is provided with loop bar (29), the outside of loop bar (29) is provided with spring C (33), spring C (33) links to each other with installation bin (22), one side of discharging pipe (21) articulates there is lid (30), the top of lid (30) is provided with inserted bar (31), the both ends symmetry of discharging pipe (21) top one side is provided with clamp splice (32), control panel (17) pass through the wire and are connected with water pump (4) and air pump (28) respectively.
2. The small water body aquaculture vitamin system of claim 1, wherein: one end of the breeding box (1) is provided with a glass plate.
3. The small water body aquaculture vitamin system of claim 1, wherein: the top of the storage box (23) is provided with a feeding port, and the top of the feeding port is provided with a cover plate.
4. The small water body aquaculture vitamin system of claim 1, wherein: the bottom inside the breeding box (1) is provided with a guide plate.
5. The small water body aquaculture vitamin system of claim 1, wherein: and a mounting plate is arranged right below the air pump (28).
6. The small water body aquaculture vitamin system of claim 1, wherein: the clamping block (32) is made of hard rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022941147.4U CN213992147U (en) | 2020-12-11 | 2020-12-11 | Small water body aquaculture life support system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022941147.4U CN213992147U (en) | 2020-12-11 | 2020-12-11 | Small water body aquaculture life support system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213992147U true CN213992147U (en) | 2021-08-20 |
Family
ID=77310388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022941147.4U Expired - Fee Related CN213992147U (en) | 2020-12-11 | 2020-12-11 | Small water body aquaculture life support system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213992147U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113678769A (en) * | 2021-08-30 | 2021-11-23 | 中国水产科学研究院渔业机械仪器研究所 | Modular breeding platform |
| CN114982689A (en) * | 2022-07-08 | 2022-09-02 | 西南大学 | Ecological aquatic product high-density three-dimensional feeding device and using method thereof |
-
2020
- 2020-12-11 CN CN202022941147.4U patent/CN213992147U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113678769A (en) * | 2021-08-30 | 2021-11-23 | 中国水产科学研究院渔业机械仪器研究所 | Modular breeding platform |
| CN114982689A (en) * | 2022-07-08 | 2022-09-02 | 西南大学 | Ecological aquatic product high-density three-dimensional feeding device and using method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210820 |