CN112021243A - Crab culture pond convenient to throw food - Google Patents
Crab culture pond convenient to throw food Download PDFInfo
- Publication number
- CN112021243A CN112021243A CN202010979972.5A CN202010979972A CN112021243A CN 112021243 A CN112021243 A CN 112021243A CN 202010979972 A CN202010979972 A CN 202010979972A CN 112021243 A CN112021243 A CN 112021243A
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- China
- Prior art keywords
- fixedly connected
- gear
- culture pond
- crab
- reciprocating screw
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- 238000009395 breeding Methods 0.000 claims abstract description 9
- 230000001488 breeding effect Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 27
- 244000309464 bull Species 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 210000005056 cell body Anatomy 0.000 claims 1
- 210000003781 tooth socket Anatomy 0.000 claims 1
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 241000238424 Crustacea Species 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000238421 Arthropoda Species 0.000 description 1
- 241000238557 Decapoda Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 241000238565 lobster Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- A01K63/003—Aquaria; Terraria
-
- 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
-
- 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
Landscapes
- 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)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
Abstract
The invention relates to the technical field of crab breeding, and discloses a crab breeding pond convenient for feeding, which comprises a breeding pond body, wherein threaded rods are arranged on the upper side and the lower side of the breeding pond body, supporting plates are fixedly connected to the two ends of each threaded rod through rotating sleeves, each supporting plate is fixedly connected with the breeding pond body, a frame body is arranged between each two supporting plates and parallel to the threaded rods, the two ends of each frame body are respectively and fixedly connected with the side walls of the two supporting plates, the two threaded rods are respectively in threaded connection with sliding blocks, a reciprocating screw rod is arranged between the two sliding blocks, the two ends of each reciprocating screw rod are respectively and rotatably connected with the two sliding blocks through the rotating sleeves, a first gear is fixedly sleeved on each two reciprocating screw rods, and the first gear is positioned in the frame body. This crab breed pond convenient to throw food can throw in the fodder to breeding the pond internal uniformly, and degree of automation is high, has reduced the labour, is convenient for people's use.
Description
Technical Field
The invention relates to the technical field of crab breeding, in particular to a crab breeding pond convenient for feeding.
Background
Crab processing: kingdom animalia, phylum arthropoda, subdivision crustacean, class chondromata, subclass euchondromata, order decapod, order gastroblastoidea, order brachycolato. Is a crustacean whose body is protected by a hard shell and breathes by the gill. It is a similar animal in biology classification to shrimp, lobster and live crab. Crab cultivation needs to be carried out by using a cultivation pond.
In the application document with the publication number of CN209449476U, a crab culture pond is disclosed, which comprises a side slope, a protection pond, a water platform, a culture pond body, a protective net, a moving groove, a fixing block, a rotating handle, a moving rod, a containing hopper, an inclined screen, a rotating column and a fixing sleeve, wherein the protection pond is arranged outside the culture pond body, the side slope is arranged outside the protection pond, the water platform is fixed inside the culture pond body, the protective net is arranged inside the protection pond, and the fixing block is fixed on the upper end surface of the protective net.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the crab culture pond convenient for feeding has the advantages of being capable of uniformly feeding feed into the culture pond body, high in automation degree, capable of reducing labor force and convenient for people to use, and solves the problems that in the prior art, manual operation is needed in the using process, labor intensity is high, feed feeding uniformity is poor, and therefore people are inconvenient to use.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a crab culture pond convenient for feeding comprises a culture pond body, wherein threaded rods are arranged on the upper side and the lower side of the culture pond body, supporting plates are fixedly connected with the two ends of each threaded rod through a rotating sleeve, each supporting plate is fixedly connected with the culture pond body, a frame body is arranged between every two supporting plates and parallel to the threaded rods, the two ends of each frame body are respectively fixedly connected with the side walls of the two supporting plates, the two threaded rods are respectively in threaded connection with a sliding block, a reciprocating lead screw is arranged between the two sliding blocks, the two ends of each reciprocating lead screw are respectively in rotating connection with the two sliding blocks through the rotating sleeves, a first gear is fixedly sleeved on each reciprocating lead screw, the first gear is positioned in the frame body, a plurality of tooth grooves matched with the first gear are formed in the inner walls of the two frame bodies, and a positioning rod is arranged on one side of each reciprocating lead screw, and the both ends of locating lever set up with the lateral wall fixed connection of two sliders respectively, reciprocal lead screw movable sleeve is equipped with the movable block, and the movable block is established with the locating lever movable sleeve, the lateral wall fixedly connected with workbin of movable block, and the fixed intercommunication of counterbalance of workbin has row material pipe, and arrange and expect the mechanism, two on arranging the material pipe one side of threaded rod all is equipped with driving motor, and driving motor passes through mount pad and backup pad fixed connection setting, two driving motor's output sets up with the one end fixed connection of two threaded rods respectively.
Preferably, it includes plectane, bull stick, second gear and rack to arrange the material mechanism, the plectane is located and arranges the intraductal, and the lateral wall of plectane periphery sets up flutedly, the one end of bull stick and the lateral wall fixed connection of plectane center department, and the other end of bull stick runs through the inner wall of arranging the material pipe and outwards extends, the bull stick rotates with row material pipe to be connected the setting, the bull stick extends to outside one end and cup joints with the second gear is fixed, and second gear and rack intermeshing, the both ends of rack set up with the lateral wall fixed connection of two sliders respectively.
Preferably, one side of the box opening of the storage box is provided with a cover plate, and the cover plate is rotatably connected with the storage box through a hinge.
Preferably, the side wall of the cover plate, which is opposite to one side of the storage box, is fixedly connected with a handle, and anti-skid grains are arranged on the surface of the handle.
Preferably, two driving motor's outside all is equipped with the protection casing, and protection casing and backup pad fixed connection set up.
Preferably, the rotating rod is movably sleeved with a fixed block, and the fixed block is fixedly connected with the discharge pipe.
Preferably, both sides wall of plectane all is equipped with the rubber gasket, and the surface of rubber gasket is seted up anti-skidding line.
(III) advantageous effects
Compared with the prior art, the invention provides the crab culture pond convenient for feeding, which has the following beneficial effects:
1. this crab breed pond convenient to throw food, through pouring the fodder into to the storage box in, two driving motor that the rethread was equipped with, two driving motor's output is rotatory can drive two threaded rods rotatory, two threaded rod rotations drive two slider movements, and then drive reciprocal lead screw and remove, the framework that the rethread was equipped with and the tooth's socket of its inside setting, reciprocal lead screw removes and to make first gear run in the framework, and then make reciprocal lead screw rotatory, the locating lever that the rethread was equipped with, can prescribe a limit to the position of movable block, make reciprocal lead screw can drive movable block reciprocating motion at rotatory in-process, movable block reciprocating motion drives storage box reciprocating motion, and then make and deposit the case and be the wave activity, improve the homogeneity of arranging the material of material pipe, and degree of automation is high, the people's of being convenient for use.
2. This crab breed pond convenient to throw food through the second gear and the rack that are equipped with, removes the in-process at the movable block and can make the second gear run on the rack, and then makes the bull stick rotate, and the bull stick rotates and drives the plectane and rotate to make the fodder in the plectane recess discharge through arranging the material pipe, further improve throw edible homogeneity, the people's of being convenient for use.
Drawings
FIG. 1 is a schematic structural view of a crab culture pond convenient for feeding;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a schematic view of the structure of the storage box of the present invention;
fig. 4 is a schematic view of a connection structure of the rack, the slider and the frame body.
In the figure: 1 culture pond body, 2 threaded rods, 3 supporting plates, 4 frames, 5 sliding blocks, 6 reciprocating screw rods, 7 first gears, 8 positioning rods, 9 movable blocks, 10 material storage boxes, 11 material discharging pipes, 12 driving motors, 13 round plates, 14 rotating rods, 15 second gears, 16 racks, 17 cover plates, 18 handles, 19 protective covers, 20 fixed blocks and 21 rubber gaskets.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a crab culture pond convenient for feeding comprises a culture pond body 1, wherein threaded rods 2 are respectively arranged on the upper side and the lower side of the culture pond body 1, supporting plates 3 are fixedly connected with both ends of each threaded rod 2 through rotating sleeves, each supporting plate 3 is fixedly connected with the culture pond body 1, a frame body 4 is arranged between every two supporting plates 3, the frame bodies 4 and the threaded rods 2 are arranged in parallel, both ends of each frame body 4 are respectively and fixedly connected with the side walls of the two supporting plates 3, the two threaded rods 2 are respectively and threadedly connected with sliding blocks 5, a reciprocating screw rod 6 is arranged between the two sliding blocks 5, both ends of each reciprocating screw rod 6 are respectively and rotatably connected with the two sliding blocks 5 through rotating sleeves, a first gear 7 is fixedly sleeved on the two reciprocating screw rods 6, the first gear 7 is arranged in the frame body 4, a plurality of tooth grooves matched with the first gear 7 are arranged on the inner walls of the, one side of reciprocal lead screw 6 is equipped with locating lever 8, and the both ends of locating lever 8 set up with the lateral wall fixed connection of two sliders 5 respectively, 6 movable sleeve of reciprocal lead screw is equipped with movable block 9, and movable block 9 establishes with the 8 movable sleeve of locating lever, the lateral wall fixedly connected with storage box 10 of movable block 9, and the fixed intercommunication of counterbalance of storage box 10 has row material pipe 11, and arrange and be equipped with row material mechanism on the material pipe 11, one side of two threaded rods 2 all is equipped with driving motor 12, and driving motor 12 passes through mount pad and 3 fixed connection settings of backup pad, the output of two driving motor 12 sets up with the one end fixed connection of two threaded rods 2 respectively.
The discharge mechanism comprises a circular plate 13, a rotating rod 14, a second gear 15 and a rack 16, wherein the circular plate 13 is positioned in the discharge pipe 11, a groove is formed in the side wall of the circumferential surface of the circular plate 13, one end of the rotating rod 14 is fixedly connected with the side wall at the center of the circular plate 13, the other end of the rotating rod 14 penetrates through the inner wall of the discharge pipe 11 and extends outwards, the rotating rod 14 is rotatably connected with the discharge pipe 11, one end of the rotating rod 14 extending to the outside is fixedly sleeved with the second gear 15, the second gear 15 is meshed with the rack 16, and two ends of the rack 16 are fixedly connected with the side walls of the two sliders 5 respectively.
One side of the case mouth of material storage box 10 is equipped with apron 17, and apron 17 rotates with material storage box 10 through the hinge and is connected the setting, can protect the fodder, prevents the entering of outside foreign matter.
The side wall of the cover plate 17, which is opposite to the side of the storage box 10, is fixedly connected with a handle 18, and anti-skid grains are formed in the surface of the handle 18, so that the cover plate 17 can be conveniently pulled to rotate.
The outside of two driving motor 12 all is equipped with protection casing 19, and protection casing 19 and backup pad 3 fixed connection set up, can play the effect of protection to two driving motor 12.
The movable sleeve of bull stick 14 is equipped with fixed block 20, and fixed block 20 and row material pipe 11 fixed connection set up, improves the stability that bull stick 14 used.
In conclusion, when the crab culture pond convenient for feeding is used, feed is poured into the storage box 10, then the two driving motors 12 are arranged, the output ends of the two driving motors 12 rotate to drive the two threaded rods 2 to rotate, the two threaded rods 2 rotate to drive the two sliding blocks 5 to move, and further drive the reciprocating screw rod 6 to move, then the reciprocating screw rod 6 moves to enable the first gear 7 to run in the frame body 4 through the arranged frame body 4 and the tooth grooves arranged in the frame body 4, so that the reciprocating screw rod 6 rotates, the position of the movable block 9 can be limited through the arranged positioning rod 8, so that the reciprocating screw rod 6 can drive the movable block 9 to reciprocate in the rotating process, the movable block 9 reciprocates to drive the storage box 10 to reciprocate, the storage box 10 is enabled to move in a wave shape, the uniformity of material discharge of the discharge pipe 11 is improved, and the automation degree is high, through second gear 15 and the rack 16 that is equipped with, can make second gear 15 run on rack 16 at the movable block 9 removal in-process, and then make bull stick 14 rotate, bull stick 14 rotates and drives plectane 13 and rotate to make the fodder in the plectane 13 recess discharge through arranging material pipe 11, further improve the homogeneity of throwing the food, be convenient for people's use.
It is to be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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 (7)
1. The utility model provides a crab culture pond convenient to throw food, is including breeding cell body (1), its characterized in that: the upper side and the lower side of the culture tank body (1) are respectively provided with a threaded rod (2), two ends of each threaded rod (2) are fixedly connected with a support plate (3) through a rotary sleeve, each support plate (3) is fixedly connected with the culture tank body (1), a frame body (4) is arranged between every two support plates (3), the frame bodies (4) and the threaded rods (2) are arranged in parallel, two ends of each frame body (4) are respectively fixedly connected with the side walls of the two support plates (3), two threaded rods (2) are respectively in threaded connection with a sliding block (5), a reciprocating screw rod (6) is arranged between the two sliding blocks (5), two ends of each reciprocating screw rod (6) are respectively in rotating connection with the two sliding blocks (5) through rotary sleeves, the two reciprocating screw rods (6) are respectively in fixed sleeved with a first gear (7), and the first gear (7) is positioned in the frame body (4), the inner walls of the two frame bodies (4) are respectively provided with a plurality of tooth sockets matched with the first gear (7), one side of the reciprocating screw rod (6) is provided with a positioning rod (8), and both ends of the positioning rod (8) are respectively fixedly connected with the side walls of the two sliding blocks (5), the reciprocating screw rod (6) is movably sleeved with a movable block (9), the movable block (9) is movably sleeved with the positioning rod (8), the side wall of the movable block (9) is fixedly connected with a material storage box (10), a material discharging pipe (11) is fixedly communicated with the material storage box (10) in a propping way, a material discharging mechanism is arranged on the material discharging pipe (11), a driving motor (12) is arranged on one side of each of the two threaded rods (2), and the driving motors (12) are fixedly connected with the supporting plate (3) through mounting seats, and the output ends of the driving motors (12) are respectively fixedly connected with one ends of the two threaded rods (2).
2. The crab culture pond convenient for feeding according to claim 1, wherein: arrange material mechanism and include plectane (13), bull stick (14), second gear (15) and rack (16), plectane (13) are located row material pipe (11), and the lateral wall of plectane (13) periphery is seted up flutedly, the lateral wall fixed connection of one end and plectane (13) center department of bull stick (14), and the other end of bull stick (14) runs through the inner wall of arranging material pipe (11) and outwards extend, bull stick (14) rotate with row material pipe (11) and are connected the setting, bull stick (14) extend to outside one end and second gear (15) fixed cup joint, and second gear (15) and rack (16) intermeshing, the both ends of rack (16) set up with the lateral wall fixed connection of two slider (5) respectively.
3. The crab culture pond convenient for feeding according to claim 1, wherein: one side of the box opening of the storage box (10) is provided with a cover plate (17), and the cover plate (17) is rotatably connected with the storage box (10) through a hinge.
4. The crab culture pond convenient for feeding according to claim 3, wherein: the side wall of the cover plate (17) opposite to one side of the storage box (10) is fixedly connected with a handle (18), and anti-skid grains are formed in the surface of the handle (18).
5. The crab culture pond convenient for feeding according to claim 1, wherein: two the outside of driving motor (12) all is equipped with protection casing (19), and protection casing (19) and backup pad (3) fixed connection set up.
6. The crab culture pond convenient for feeding according to claim 2, wherein: the rotating rod (14) is movably sleeved with a fixing block (20), and the fixing block (20) is fixedly connected with the discharging pipe (11).
7. The crab culture pond convenient for feeding according to claim 2, wherein: both sides wall of plectane (13) all is equipped with rubber gasket (21), and the surface of rubber gasket (21) has seted up anti-skidding line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010979972.5A CN112021243B (en) | 2020-09-17 | 2020-09-17 | Crab culture pond convenient to throw food |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010979972.5A CN112021243B (en) | 2020-09-17 | 2020-09-17 | Crab culture pond convenient to throw food |
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| Publication Number | Publication Date |
|---|---|
| CN112021243A true CN112021243A (en) | 2020-12-04 |
| CN112021243B CN112021243B (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010979972.5A Active CN112021243B (en) | 2020-09-17 | 2020-09-17 | Crab culture pond convenient to throw food |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113040077A (en) * | 2021-04-12 | 2021-06-29 | 淮安市滨湖红膏螃蟹养殖有限公司 | Juvenile crab becomes crab intergrowth type pool mouth breeding device |
| CN113854233A (en) * | 2021-10-28 | 2021-12-31 | 陵水晨海种业有限公司 | Oxygenation device for marine fish culture |
| CN114831068A (en) * | 2022-05-21 | 2022-08-02 | 无为县杭仁政水产养殖专业合作社 | Crab pool breeding device and method capable of automatically inspecting and feeding crabs |
| CN116326529A (en) * | 2023-05-15 | 2023-06-27 | 江西省水产科学研究所(江西省鄱阳湖渔业研究中心、江西省渔业资源生态环境监测中心) | Mandarin fish fodder feeding device that can simulate live fish to move about |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6499431B1 (en) * | 2001-12-21 | 2002-12-31 | Formosa High-Tech Aquaculture, Inc. | Indoor automatic aquaculture system |
| CN110741993A (en) * | 2019-12-11 | 2020-02-04 | 添宇 | Centrifugal fish food throwing machine |
| CN111084113A (en) * | 2019-12-18 | 2020-05-01 | 安徽陆明科技有限公司 | Livestock breeding eats device with multi-functional feeding |
| CN210726418U (en) * | 2019-05-05 | 2020-06-12 | 霍邱县枫浩水产养殖专业合作社 | Crayfish culture pond with automatic feeding device |
-
2020
- 2020-09-17 CN CN202010979972.5A patent/CN112021243B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6499431B1 (en) * | 2001-12-21 | 2002-12-31 | Formosa High-Tech Aquaculture, Inc. | Indoor automatic aquaculture system |
| CN210726418U (en) * | 2019-05-05 | 2020-06-12 | 霍邱县枫浩水产养殖专业合作社 | Crayfish culture pond with automatic feeding device |
| CN110741993A (en) * | 2019-12-11 | 2020-02-04 | 添宇 | Centrifugal fish food throwing machine |
| CN111084113A (en) * | 2019-12-18 | 2020-05-01 | 安徽陆明科技有限公司 | Livestock breeding eats device with multi-functional feeding |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113040077A (en) * | 2021-04-12 | 2021-06-29 | 淮安市滨湖红膏螃蟹养殖有限公司 | Juvenile crab becomes crab intergrowth type pool mouth breeding device |
| CN113854233A (en) * | 2021-10-28 | 2021-12-31 | 陵水晨海种业有限公司 | Oxygenation device for marine fish culture |
| CN114831068A (en) * | 2022-05-21 | 2022-08-02 | 无为县杭仁政水产养殖专业合作社 | Crab pool breeding device and method capable of automatically inspecting and feeding crabs |
| CN116326529A (en) * | 2023-05-15 | 2023-06-27 | 江西省水产科学研究所(江西省鄱阳湖渔业研究中心、江西省渔业资源生态环境监测中心) | Mandarin fish fodder feeding device that can simulate live fish to move about |
| CN116326529B (en) * | 2023-05-15 | 2024-06-11 | 江西省水产科学研究所(江西省鄱阳湖渔业研究中心、江西省渔业资源生态环境监测中心) | Mandarin fish fodder feeding device that can simulate live fish to move about |
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|---|---|
| CN112021243B (en) | 2022-03-22 |
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