CN110122405B - A spout medicine and oxygenation device for aquaculture - Google Patents
A spout medicine and oxygenation device for aquaculture Download PDFInfo
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- CN110122405B CN110122405B CN201910396462.2A CN201910396462A CN110122405B CN 110122405 B CN110122405 B CN 110122405B CN 201910396462 A CN201910396462 A CN 201910396462A CN 110122405 B CN110122405 B CN 110122405B
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- rod
- positioning rod
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
- A01K61/13—Prevention or treatment of fish diseases
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
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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
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The invention discloses a medicine spraying and oxygen increasing device for aquaculture, which comprises a water storage tank, a support column, an air blower, a stirring device arranged in the water storage tank, a main pipeline connected to the support column through a lifting device, and a flow dividing pipe communicated with the main pipeline, wherein the water storage tank is connected with a water inlet pipe, the output end of the air blower is communicated with the main pipeline through an air supply pipe, a first flow control valve is arranged at the joint of the air supply pipe and the main pipeline, the water storage tank is communicated with the main pipeline through an air outlet pipe, and a second flow control valve is arranged at the joint of the air outlet pipe and the main pipeline.
Description
Technical Field
The invention relates to agricultural equipment, in particular to a pesticide spraying and oxygen increasing device for aquaculture.
Background
The traditional pesticide spreading mode depends on strong labor force, operators need to go down a pond to operate in person, the summer is a pesticide peak period, the operators can be exposed to high temperature for long time to carry out pesticide spreading operation, a sprinkler is generally used on the market at present, pesticide can be applied to a fishpond only by depending on a wide and flat road, and meanwhile, the wireless remote control pesticide spreading mode also has the problems that a large amount of pesticide cannot be carried, professional technicians need to carry out remote control, and the fishes need to be taken back down the pond manually when faults occur; oxygenation then mainly relies on oxygen-increasing machine and exposes to the sun oxygen pipe etc. if use machinery to spill the medicine, including oxygenation equipment, then can occupy more space to the cost of purchasing machinery is too high, has increased the cost input to aquaculture.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: there is a need for a spraying and aeration device for aquaculture, which facilitates spraying of the pesticide and aeration of the gas.
The solution of the invention for solving the technical problem is as follows: the utility model provides a spout medicine and oxygenation device for aquaculture, includes storage water tank, support column, air-blower, set up in agitating unit in the storage water tank, through elevating gear connect in trunk line on the support column, with the shunt tubes that the trunk line communicates each other, the storage water tank is connected with the inlet tube, the output of air-blower pass through the blast pipe with the trunk line communicates each other, the blast pipe with the junction of trunk line is provided with first flow control valve, the storage water tank pass through the outlet pipe with the trunk line communicates each other, the outlet pipe with the junction of trunk line is provided with the second flow control valve.
As a further improvement of the technical scheme, the stirring device comprises a driving motor arranged on the water storage tank, a rotating shaft in transmission connection with the driving motor, and blades arranged on the outer side wall of the rotating shaft, wherein the blades are arranged in the water storage tank.
As a further improvement of the technical scheme, a mesh enclosure is arranged in the water storage tank, and the blades are arranged in the mesh enclosure.
As a further improvement of the technical scheme, a filter screen is arranged at the joint of the water outlet pipe and the water storage tank.
As a further improvement of the above technical scheme, the shunt tubes include first spray pipes communicated with each other with the main pipeline, and second spray pipes communicated with each other with the first spray pipes, the first spray pipes extend along the horizontal direction, and the second spray pipes extend along the vertical downward direction.
As a further improvement of the above technical solution, the lifting device comprises a fixed seat arranged on the supporting column, a lifting rod connected to the fixed seat through a lifting lead screw, a left positioning rod arranged on the left side of the lifting rod, and a right positioning rod arranged on the right side of the lifting rod, wherein the left positioning rod is connected to the fixed seat through a first translation lead screw, the left positioning rod moves back and forth in the direction close to or away from the lifting rod, the right positioning rod is connected to the fixed seat through a second translation lead screw, the right positioning rod moves back and forth in the direction close to or away from the lifting rod, the main pipeline is fixedly arranged at the bottom end of the lifting rod, the side surfaces of the lifting rod opposite to the left positioning rod and the right positioning rod are respectively provided with a first rack, the first racks extend in the vertical direction, and one side surface of the left positioning rod opposite to the lifting rod is, and a third rack is arranged on one side surface of the right positioning rod opposite to the lifting rod, and the first rack is meshed with the second rack and the third rack.
As a further improvement of the above technical scheme, the linear movement end of the first translation lead screw is connected with a first buffer rod, a left side positioning rod is connected with the linear movement end through a slide rail chute, the left side positioning rod is arranged between the first buffer rod and the lifting rod, the first buffer rod is provided with at least one first through hole along the vertical direction, the left side positioning rod is right opposite to the position of the first through hole and is provided with a first guide rod, the first guide rod is far away from one end of the left side positioning rod passes through the first through hole, the left side positioning rod is sleeved with a first spring, one end of the first spring is fixedly connected with the outer side of the left side positioning rod, and the other end of the first spring is fixedly connected with the outer side of the first buffer rod.
As a further improvement of the above technical solution, a linear moving end of the second translation screw rod is connected with a second buffer rod, the right positioning rod is connected to the linear moving end through a slide rail chute, the right positioning rod is arranged between the second buffer rod and the lifting rod, the second buffer rod is provided with at least one second through hole along the vertical direction, a second guide rod is arranged at a position of the right positioning rod opposite to the second through hole, one end of the second guide rod, which is far away from the right positioning rod, penetrates through the second through hole, a second spring is sleeved outside the right positioning rod, one end of the second spring is fixedly connected to the outer side of the right positioning rod, and the other end of the second spring is fixedly connected to the outer side of the second buffer rod.
The invention has the beneficial effects that: the utility model provides a spout medicine and oxygenation device for aquaculture, including the storage water tank that is used for storing solution, there is agitating unit in the storage water tank, when needs spout the medicine, can add the medicine in the storage water tank, and stir evenly through agitating unit, adjust the height of trunk line on the support column through elevating gear, make the trunk line above the liquid level, open first flow control valve, and close second flow control valve, the solution in the storage water tank enters into the shunt tubes from the trunk line, and spout from the shunt tubes, realize spouting the medicine function, when needs oxygenation, start the air-blower, and adjust the height of trunk line on the support column through elevating gear, make the trunk line soak in the water, open second flow control valve, and close first flow control valve, the air-blower is to the trunk line delivery air, and discharge the air into the water through the shunt tubes, realize the oxygenation function, so use the pipeline of same output to spout medicine and oxygenation, the laying of pipeline network has been reduced, uses machinery to spout the medicine and reduces the input of labour, reduces high temperature operation, avoids the injury of medicine to the human body to when not needing the oxygenation, can rise to above the surface of water, avoid the long-term soaking of water and the attached of pollutant.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
fig. 2 is a front view of the lifting device of the present invention.
In the figure: 1-a water storage tank, 2-a blower, 3-a lifting device, 4-a main pipeline, 5-a water inlet pipe, 6-a water outlet pipe, 7-an air supply pipe, 8-a rotating shaft, 9-a blade, 10-a mesh enclosure, 11-a first spray pipe, 12-a second spray pipe, 13-a fixed seat, 14-a lifting rod, 15-a left positioning rod, 16-a right positioning rod, 17-a first rack, 18-a second rack, 19-a third rack, 20-a first buffer rod, 21-a first guide rod, 22-a first spring, 23-a second buffer rod, 24-a second guide rod and 25-a second spring.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
Referring to fig. 1 and 2, a spout medicine and oxygenation device for aquaculture, including storage water tank 1, support column, air-blower 2, set up in agitating unit in the storage water tank 1, connect in through elevating gear 3 trunk line 4 on the support column, with the shunt tubes that trunk line 4 communicates each other, storage water tank 1 is connected with inlet tube 5, the output of air-blower 2 pass through blast pipe 7 with trunk line 4 communicates each other, blast pipe 7 with the junction of trunk line 4 is provided with first flow control valve, storage water tank 1 pass through outlet pipe 6 with trunk line 4 communicates each other, outlet pipe 6 with the junction of trunk line 4 is provided with the second flow control valve.
From the above, the invention provides a spraying and oxygen increasing device for aquaculture, which comprises a water storage tank 1 for storing solution, wherein a stirring device is arranged in the water storage tank 1, when spraying is needed, the water storage tank 1 can be filled with medicine, the medicine is uniformly stirred by the stirring device, the height of a main pipeline 4 on a supporting column is adjusted by a lifting device 3, the main pipeline 4 is above the liquid level, a first flow control valve is opened, a second flow control valve is closed, the solution in the water storage tank 1 enters a shunt pipe from the main pipeline 4 and is sprayed out from the shunt pipe, the spraying function is realized, preferably, two supporting columns and two lifting devices are correspondingly arranged and are uniformly arranged on the main pipeline 4, the main pipeline 4 is more stable when being lifted, when oxygen is needed, an air blower 2 is started, the height of the main pipeline 4 on the supporting column is adjusted by the lifting device 3, so that the main pipeline 4 is immersed in water, open the second flow control valve, and close first flow control valve, air-blower 2 is to 4 delivery air of trunk line, and through the shunt tubes with the air discharge to the water in, realize the oxygenation function, so use the pipeline of same output to spout medicine and oxygenation, the laying of pipeline network has been reduced, use machinery to spout the input that the medicine reduces the labour, reduce high temperature operation, avoid the injury of medicine to the human body, and when not needing the oxygenation, can rise to the surface of water more than, avoid the long-term soaking of water and the adhering to of pollutant.
Further as preferred embodiment, agitating unit including set up in driving motor on the storage water tank 1, with pivot 8 that driving motor transmission is connected, set up in the blade 9 of 8 lateral walls of pivot, blade 9 set up in the storage water tank 1, driving motor drive pivot 8 is rotatory to make blade 9 revolute 8 rotations of pivot, stir the solution in the storage water tank 1, make the liquid medicine more even.
Further as a preferred embodiment, a mesh enclosure 10 is arranged in the water storage tank 1, and the blades 9 are arranged in the mesh enclosure 10, so as to prevent foreign objects from entering the stirring device, damage the stirring device and damage the stirring device to people.
Further as the preferred embodiment, the junction of outlet pipe 6 with storage water tank 1 is provided with the filter screen, prevents that the inlet tube 5 is blockked up to the bold impurity, influences the medicine of spouting.
Further as preferred embodiment, the shunt tubes include with main pipeline 4 intercommunication first spray tube 11, with first spray tube 11 intercommunication second spray tube 12, first spray tube 11 extends the setting along the horizontal direction, second spray tube 12 extends the setting along vertical decurrent direction, and first spray tube 11 exports along the horizontal direction, and second spray tube 12 then exports vertically downwards, and the purpose is the blank region that covers first shower nozzle and can not reach.
Further as a preferred embodiment, the lifting device 3 includes a fixing seat 13 disposed on the supporting column, a lifting rod 14 connected to the fixing seat 13 through a lifting screw, a left positioning rod 15 disposed on the left side of the lifting rod 14, and a right positioning rod 16 disposed on the right side of the lifting rod 14, the left positioning rod 15 is connected to the fixing seat 13 through a first translation screw, the left positioning rod 15 moves back and forth in a direction close to or away from the lifting rod 14, the right positioning rod 16 is connected to the fixing seat 13 through a second translation screw, the right positioning rod 16 moves back and forth in a direction close to or away from the lifting rod 14, the main pipe 4 is fixedly disposed at the bottom end of the lifting rod 14, the lifting rod 14 is provided with a first rack 17 on the side facing the left positioning rod 15 and the right positioning rod 16, the first rack 17 extends along the vertical direction, the second rack 18 is arranged on one side surface of the left positioning rod 15 opposite to the lifting rod 14, the third rack 19 is arranged on one side surface of the right positioning rod 16 opposite to the lifting rod 14, the first rack 17, the second rack 18 and the third rack 19 are meshed with each other, the main pipeline 4 is driven by the lifting screw rod to move up and down, because the main pipeline 4 can generate vibration during spraying or oxygen increasing, the connection structure with the lifting screw rod can be influenced during vibration, therefore, after the lifting screw rod is controlled by the lifting screw rod to move to a required height, the first translation screw rod and the second translation screw rod respectively control the left positioning rod 15 and the right positioning rod 16 to move to the lifting rod 14, the first rack 17, the second rack 18 and the third rack 19 are meshed with each other to lock the lifting rod 14, so that the lifting rod 14 cannot move in the vertical direction, thereby reducing the stress of the lifting screw rod and improving the stability of the structure.
As a preferred embodiment, a linear moving end of the first translation screw rod is connected with a first buffer rod 20, the left positioning rod 15 is connected to the linear moving end through a sliding rail sliding groove, the left positioning rod 15 is disposed between the first buffer rod 20 and the lifting rod 14, the first buffer rod 20 is provided with at least one first through hole along the vertical direction, a first guide rod 21 is disposed at a position of the left positioning rod 15 opposite to the first through hole, one end of the first guide rod 21 away from the left positioning rod 15 passes through the first through hole, a first spring 22 is sleeved outside the left positioning rod 15, one end of the first spring 22 is fixedly connected to the outside of the left positioning rod 15, the other end of the first spring 22 is fixedly connected to the outside of the first buffer rod 20, and when the vibration generated by the main pipeline 4 is transmitted to the lifting buffer rod 14, when the lifting rod 14 generates a horizontal leftward force on the left positioning rod 15, the left positioning rod 15 moves leftward through the sliding rail sliding groove, so that the first spring 22 between the left positioning rod 15 and the first buffer rod 20 is compressed, vibration is offset, the stability of the connection structure between the left positioning rod 15 and the first translation screw rod is improved, and the whole structure is more durable.
As a preferred embodiment, a linear moving end of the second translational screw rod is connected with a second buffer rod 23, the right positioning rod 16 is connected to the linear moving end through a sliding rail, the right positioning rod 16 is disposed between the second buffer rod 23 and the lifting rod 14, the second buffer rod 23 is provided with at least one second through hole along the vertical direction, a second guide rod 24 is disposed at a position of the right positioning rod 16 opposite to the second through hole, one end of the second guide rod 24 away from the right positioning rod 16 passes through the second through hole, a second spring 25 is sleeved outside the right positioning rod 16, one end of the second spring 25 is fixedly connected to the outside of the right positioning rod 16, the other end of the second spring 25 is fixedly connected to the outside of the second buffer rod 23, and similarly, when the vibration generated by the main pipe 4 is transmitted to the lifting rod 14, when the lifting rod 14 generates a horizontal force to the right positioning rod 16, the right positioning rod 16 moves rightwards through the sliding rail, so that the second spring 25 between the right positioning rod 16 and the second buffer rod 23 is compressed, vibration is offset, the stability of the connection structure between the right positioning rod and the second translation screw rod is improved, and the whole structure is more durable.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.
Claims (7)
1. The utility model provides a spout medicine and oxygenation device for aquaculture which characterized in that: including storage water tank (1), support column, air-blower (2), set up in agitating unit in storage water tank (1), connect in through elevating gear (3) trunk line (4) on the support column, with the shunt tubes of trunk line (4) intercommunication each other, storage water tank (1) is connected with inlet tube (5), the output of air-blower (2) pass through blast pipe (7) with trunk line (4) intercommunication each other, blast pipe (7) with the junction of trunk line (4) is provided with first flow control valve, storage water tank (1) pass through outlet pipe (6) with trunk line (4) intercommunication each other, outlet pipe (6) with the junction of trunk line (4) is provided with the second flow control valve, elevating gear (3) including set up in fixing base (13) on the support column, connect in through the lead screw that goes up and down lifter (14) on fixing base (13), A left positioning rod (15) arranged on the left side of the lifting rod (14), and a right positioning rod (16) arranged on the right side of the lifting rod (14), wherein the left positioning rod (15) is connected to the fixing seat (13) through a first translation screw rod, the left positioning rod (15) moves back and forth along the direction close to or away from the lifting rod (14), the right positioning rod (16) is connected to the fixing seat (13) through a second translation screw rod, the right positioning rod (16) moves back and forth along the direction close to or away from the lifting rod (14), the main pipeline (4) is fixedly arranged at the bottom end of the lifting rod (14), the lifting rod (14) is provided with a first rack (17) on the side face opposite to the left positioning rod (15) and the right positioning rod (16), the first rack (17) is arranged in an extending manner along the vertical direction, the left positioning rod (15) is provided with a second rack (18) on the side face opposite to the lifting rod (14), a third rack (19) is arranged on one side face, opposite to the lifting rod (14), of the right positioning rod (16), and the first rack (17) is meshed with the second rack (18) and the third rack (19).
2. The spraying and oxygen increasing device for aquaculture according to claim 1, wherein: agitating unit including set up in driving motor on storage water tank (1), with pivot (8) that driving motor transmission is connected, set up in blade (9) of pivot (8) lateral wall, blade (9) set up in storage water tank (1).
3. The spraying and oxygen increasing device for aquaculture according to claim 2, wherein: a mesh enclosure (10) is arranged in the water storage tank (1), and the blades (9) are arranged in the mesh enclosure (10).
4. The spraying and oxygen increasing device for aquaculture according to claim 1, wherein: and a filter screen is arranged at the joint of the water outlet pipe (6) and the water storage tank (1).
5. The spraying and oxygen increasing device for aquaculture according to claim 1, wherein: the shunt tubes include with first spray tube (11) that trunk line (4) communicate each other, with second spray tube (12) that first spray tube (11) communicate each other, first spray tube (11) extend the setting along the horizontal direction, second spray tube (12) extend the setting along vertical decurrent direction.
6. The spraying and oxygen increasing device for aquaculture according to claim 1, wherein: the linear moving end of the first translation screw rod is connected with a first buffer rod (20), the left positioning rod (15) is connected with the linear moving end through a sliding rail sliding groove, the left positioning rod (15) is arranged between the first buffer rod (20) and the lifting rod (14), at least one first through hole is arranged on the first buffer rod (20) along the vertical direction, a first guide rod (21) is arranged at the position of the left positioning rod (15) opposite to the first through hole, one end of the first guide rod (21) far away from the left positioning rod (15) passes through the first through hole, a first spring (22) is sleeved outside the left positioning rod (15), one end of the first spring (22) is fixedly connected to the outer side of the left positioning rod (15), the other end of the first spring (22) is fixedly connected to the outer side of the first buffer rod (20).
7. The spraying and oxygen increasing device for aquaculture according to claim 1, wherein: the linear moving end of the second translation screw rod is connected with a second buffer rod (23), the right positioning rod (16) is connected to the linear moving end through a sliding rail sliding groove, the right positioning rod (16) is arranged between the second buffer rod (23) and the lifting rod (14), at least one second through hole is arranged on the second buffer rod (23) along the vertical direction, a second guide rod (24) is arranged at the position of the right positioning rod (16) opposite to the second through hole, one end of the second guide rod (24) far away from the right positioning rod (16) passes through the second through hole, a second spring (25) is sleeved outside the right positioning rod (16), one end of the second spring (25) is fixedly connected to the outer side of the right positioning rod (16), the other end of the second spring (25) is fixedly connected to the outer side of the second buffer rod (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910396462.2A CN110122405B (en) | 2019-05-14 | 2019-05-14 | A spout medicine and oxygenation device for aquaculture |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910396462.2A CN110122405B (en) | 2019-05-14 | 2019-05-14 | A spout medicine and oxygenation device for aquaculture |
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| CN110122405A CN110122405A (en) | 2019-08-16 |
| CN110122405B true CN110122405B (en) | 2021-03-30 |
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| CN201910396462.2A Active CN110122405B (en) | 2019-05-14 | 2019-05-14 | A spout medicine and oxygenation device for aquaculture |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110999832A (en) * | 2019-11-27 | 2020-04-14 | 南宁市蔡哥水产科技有限公司 | Fish body surface disease treatment device |
| CN112400790A (en) * | 2020-11-25 | 2021-02-26 | 马鞍山绿丰种业有限公司 | Lobster culture water body maintenance device and implementation method thereof |
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| CN104782552A (en) * | 2015-04-20 | 2015-07-22 | 中国水产科学研究院渔业机械仪器研究所 | Centralized automatic feeding and oxygenation system for aquaculture |
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| CN207639452U (en) * | 2017-12-13 | 2018-07-24 | 四川农业大学 | A kind of multi-functional administration device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109090011A (en) * | 2018-09-27 | 2018-12-28 | 佛山科学技术学院 | A kind of solar energy aerator |
| CN109479795A (en) * | 2018-11-15 | 2019-03-19 | 贺基乾 | A kind of cultivation apparatus |
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| CN201254497Y (en) * | 2008-04-29 | 2009-06-10 | 昆明天地根科技有限公司 | Oxygenation material feeding machine for biology culture and treating water contamination |
| CN104782552A (en) * | 2015-04-20 | 2015-07-22 | 中国水产科学研究院渔业机械仪器研究所 | Centralized automatic feeding and oxygenation system for aquaculture |
| CN205987842U (en) * | 2016-08-07 | 2017-03-01 | 吴善方 | Spill the auxiliary device of medicine double-purpose for oxygen supplement in pond |
| CN207639452U (en) * | 2017-12-13 | 2018-07-24 | 四川农业大学 | A kind of multi-functional administration device |
| CN108077160A (en) * | 2018-02-12 | 2018-05-29 | 方宣崇 | A kind of aquaculture pond oxygen increasing equipment used for aquiculture |
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