Quick dissolved oxygen supplementing device for fish culture

Abstract

The invention belongs to the technical field of fishery breeding, particularly relates to a fish breeding dissolved oxygen rapid supplementing device, and aims to solve the problems of high equipment investment, high energy consumption and the like of an existing oxygenation mode. In order to solve the problems that in the breeding process, once dissolved oxygen is insufficient, fishes grow slowly, immunity is reduced, even a large number of fishes die, and huge economic losses are brought to farmers, the following scheme is provided that the device comprises a shell fixedly installed at the top of a bottom plate, and the top of the bottom plate is further fixedly provided with a circulating pump through bolts; a circulating pump is arranged in the shell, a flowing pipe is welded to the output end of the circulating pump, and the top end of the flowing pipe extends into the shell and is welded to the inner wall of one side of the shell. Water in the culture pond circularly flows by starting the wave maker, so that oxygen can be quickly and uniformly supplemented into the culture pond.

Description

Technical Field

[0001] The present invention relates to the technical field of fishery aquaculture, and particularly to a device for rapidly supplementing dissolved oxygen in fish farming. Background Art

[0002] In the circulating water fish farming mode, the recycling of water effectively saves water resources, reduces aquaculture costs, and also reduces environmental pollution. It is gradually becoming an important direction for the development of modern fishery. However, with the continuous increase in aquaculture density, the demand for dissolved oxygen by fish has increased sharply, and the existing oxygenation equipment is difficult to meet the demand for rapidly supplementing dissolved oxygen in a high-density aquaculture environment.

[0003] Traditional oxygenation methods have problems such as high equipment investment and high energy consumption. During the aquaculture process, once the dissolved oxygen is insufficient, it will lead to slow fish growth, decreased immunity, and even massive death, causing huge economic losses to farmers. Therefore, this technical solution proposes a device for rapidly supplementing dissolved oxygen in fish farming to solve the above-mentioned problems. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art that traditional oxygenation methods have high equipment investment and high energy consumption. During the aquaculture process, once the dissolved oxygen is insufficient, it will lead to slow fish growth, decreased immunity, and even massive death, causing huge economic losses to farmers, and to propose a device for rapidly supplementing dissolved oxygen in fish farming.

[0005] In order to achieve the above purpose, the present invention adopts the following technical scheme:

[0006] A device for rapidly supplementing dissolved oxygen in fish farming, including a housing fixedly installed on the top of a bottom plate. The supplementing device further includes:

[0007] An oxygen storage mechanism installed in the housing. The oxygen storage mechanism includes an inner tank arranged in the housing for storing oxygen, and the top of the oxygen storage mechanism extends above the housing;

[0008] An exhaust mechanism located on one side of the housing and pre-installed in a culture pond. The exhaust mechanism is connected to the oxygen storage mechanism, and a plurality of wave makers are also installed on the exhaust mechanism.

[0009] In a possible design, the oxygen storage mechanism further includes a mounting ring fixedly installed inside the outer shell. The inner tank penetrates through the mounting ring and is hermetically welded to the inner wall of the mounting ring. The mounting ring is used to suspend the inner tank inside the outer shell. An adjustable cover plate is hermetically and slidably connected inside the inner tank. An air inlet pipe and an air outlet pipe respectively penetrate and slidably connect through the adjustable cover plate. The top end of the air inlet pipe extends above the outer shell and is threadedly connected to a first docking valve, and the first docking valve is used to connect with the oxygen delivery pipeline of an external oxygen generator. One side of the top of the outer shell is fixedly installed with a booster pump through threads. The suction end of the booster pump extends into the outer shell and is threadedly connected to the air outlet pipe. A second docking valve is threadedly connected to the air outlet end of the booster pump, and the second docking valve is connected to the exhaust mechanism.

[0010] In a possible design, first compression springs are sleeved on both the air inlet pipe and the air outlet pipe and are located above the adjustable cover plate. The top end and the bottom end of the first compression spring are respectively fixedly connected to the inner wall of the top of the outer shell and the top of the adjustable cover plate.

[0011] In a possible design, the exhaust mechanism includes a bracket. A movable frame is connected to the bracket. Support plates are welded to both sides of the movable frame. The same flow dividing pipe is welded to the side of the two support plates close to each other. A plurality of nozzle rings are equidistantly penetrated and welded on one side inner wall of the flow dividing pipe. A docking pipe is penetrated and welded on the top of the flow dividing pipe. A delivery hose is clamped on the top end of the docking pipe. One end of the delivery hose is inserted and connected to the second docking valve.

[0012] In a possible design, a limiting plate is welded inside the nozzle ring. A movable rod penetrates and slidably connects through the limiting plate. An air outlet nozzle is welded to one side of the nozzle ring. One end of the movable rod extends to be welded with a spherical plate, and the spherical plate fits against the inner wall of the air outlet nozzle, which can prevent the water in the aquaculture pond from flowing into the flow dividing pipe through the air outlet nozzle and the nozzle ring. A second compression spring is sleeved on the movable rod, and both ends of the second compression spring are welded to one side of the limiting plate and the other end of the movable rod respectively.

[0013] In a possible design, the bracket includes two bottom beams. Two mounting pipes are symmetrically welded to the top of the bottom beams. Movable pipes are slidably sleeved on the mounting pipes. It also includes two cross bars which are perpendicular to the bottom beams. The top ends of the two movable pipes are respectively welded to the corresponding same cross bar.

[0014] On one side of the two cross bars close to each other, the same side rail is welded. The number of side rails is two, and the movable frame is respectively slidably connected to the two side rails.

[0015] In a possible design, a clamping strip is fixedly installed on one side of the side rail, and a plurality of clamping openings are equidistantly formed on one side of the clamping strip. Two mounting shafts are symmetrically welded to the bottom of the moving frame. A rotating ring is rotatably sleeved on the mounting shaft. A clamping rod is welded to the bottom of the rotating ring. The clamping rods are respectively movably clamped with the plurality of clamping openings. Two torsion springs are symmetrically sleeved on the mounting shaft, and two ends of each torsion spring are respectively welded to one side of the rotating ring and one end of the mounting shaft.

[0016] In a possible design, the tops of two side rails are welded with the same fixed pipe through a lining plate. A plurality of wave makers are installed in the fixed pipe in an equidistant manner by means of bolt fixation. One side of the wave maker extends to the outside of the fixed pipe.

[0017] In a possible design, an adjusting nut is fixedly installed in the mounting pipe. An adjusting screw rod is threadedly connected through the adjusting nut. The top end of the adjusting screw rod penetrates through the corresponding cross bar and extends above the cross bar. The adjusting screw rod is threadedly connected with the cross bar.

[0018] In this application, when this technical solution is in use, the first docking valve can be pre-connected to the oxygen delivery pipeline of an external oxygen generator. At this time, the oxygen produced by the oxygen generator can be transported to the inner tank through the first docking valve and the intake pipe. As the volume of oxygen in the inner tank increases, the adjustable cover plate will be pushed upward to increase the oxygen storage capacity. When oxygen needs to be replenished into the aquaculture pond, the bottom beam can be pre-installed at a specified position inside the pond. Then, by pushing the movable frame, the horizontal position of the shunt pipe can be adjusted, thereby adjusting the distance between the air outlet nozzle and the wave maker. After the adjustment is completed, by releasing the latch, the torsion spring in the stressed state can drive the rotating ring to rotate, so that the latch can be moved into the corresponding bayonet, thus realizing the positioning of the movable frame. Then, by twisting the adjusting screw, under the thread transmission action with the adjusting nut, the cross bar can be driven to move longitudinally, thereby realizing the adjustment of the height of the cross bar. It can be seen that when adjusting the height of the cross bar, the heights of multiple wave makers and the shunt pipe can be adjusted according to the water level in the aquaculture pond. Then, the delivery hose is docked with the air outlet end of the booster pump. After that, when the booster pump is started, the oxygen in the inner tank can be pumped out, and the oxygen can be transported into the shunt pipe through the delivery hose. As the air pressure in the shunt pipe increases, multiple spherical plates can be simultaneously pushed up to move, releasing the blockage of the air outlet nozzle, so that oxygen can flow into the water in the oxygen pond through the air outlet nozzle. At the same time, multiple wave makers can be started. The combination design of the wave maker and the shunt pipe is uniquely innovative. The position and angle of the air outlet nozzle are carefully designed. It is installed at a specific distance behind the wave maker, and the air outlet is at a special angle inclined downward, forming an optimal angle with the water flow direction generated by the wave maker. When the wave maker works, it will generate a water flow with a specific flow direction and velocity. The high-purity oxygen discharged from the air outlet nozzle can be quickly drawn into the water body under the drive of the water flow and fully mixed with the water body under the action of the water flow turbulence. This unique structural design greatly improves the dissolution efficiency and diffusion range of oxygen in the water compared with the traditional simple aeration method, making the dissolved oxygen distribution in each area of the aquaculture pond more uniform and able to raise the dissolved oxygen content in the water to an appropriate level in a shorter time;

[0019] And when the wave maker is turned on, the water in the aquaculture pond starts to circulate at an accelerated rate. This accelerated water flow is like providing a natural "sports field" for the cultured fish, increasing the activity of the cultured fish and being beneficial to their growth and development. At the same time, under the drive of the water flow, the residual baits and feces originally scattered in the corners of the aquaculture pond will gradually gather together along the direction of the water flow. Due to the accelerating effect of the water flow, the residual baits and feces can be more quickly and efficiently concentrated near the sewage outlet and discharged from the aquaculture pond, effectively reducing the impurities and harmful substances in the water and reducing the risk of water quality deterioration, creating a cleaner and healthier living environment for the cultured fish.

[0020] In the present invention, for the rapid dissolved oxygen supplement device for fish farming, through the oxygen storage mechanism, after connecting the first docking valve to the oxygen delivery pipeline of an external oxygen generator, the oxygen produced by the oxygen generator can be transported into the inner tank through the first docking valve and the intake pipe. As the volume of oxygen in the inner tank increases, the adjustable cover plate will be pushed upward to increase the oxygen storage capacity. Moreover, when the booster pump is started, the oxygen in the inner tank can be pumped out and dispersed through the exhaust mechanism to be transported into the fishpond;

[0021] In the present invention, for the rapid dissolved oxygen supplement device for fish farming, through the exhaust mechanism, the oxygen flowing out through the second docking valve can be transported into the shunt pipe through the delivery hose, and then can be sprayed into the water in the fishpond through multiple nozzle rings, thereby being able to increase the oxygen content in the fishpond;

[0022] The present invention can evenly supplement oxygen into the water in the fishpond during the process of fish farming. And during the oxygen supplementation process, by starting the wave maker, the water in the fishpond can circulate, so as to quickly and evenly supplement oxygen into the fishpond. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional schematic view of the first perspective structure of a rapid dissolved oxygen supplement device for fish farming proposed by the present invention;

[0024] Figure 2 is a three-dimensional schematic view of the second perspective structure of a rapid dissolved oxygen supplement device for fish farming proposed by the present invention;

[0025] Figure 3 is a three-dimensional schematic view of the sectional structure of the outer shell of a rapid dissolved oxygen supplement device for fish farming proposed by the present invention;

[0026] Figure 4 is a sectional structure schematic view of the outer shell and the inner tank of a rapid dissolved oxygen supplement device for fish farming proposed by the present invention;

[0027] Figure 5 is a three-dimensional schematic view of the connection structure of the support frame, the shunt pipe and multiple wave makers of a rapid dissolved oxygen supplement device for fish farming proposed by the present invention;

[0028] Figure 6 is a three-dimensional schematic view of the sectional structure of the nozzle ring and the air outlet nozzle of a rapid dissolved oxygen supplement device for fish farming proposed by the present invention;

[0029] Figure 7 is a three-dimensional schematic view of the sectional structure of the installation pipe and the moving pipe of a rapid dissolved oxygen supplement device for fish farming proposed by the present invention.

[0030] In the figure: 1, bottom plate; 2, outer shell; 3, mounting ring; 4, inner tank; 5, wave maker; 6, adjusting screw; 7, adjusting nut; 8, adjustable cover plate; 9, intake pipe; 10, booster pump; 11, outlet pipe; 12, first docking valve; 13, second docking valve; 14, first compression spring; 15, bottom beam; 16, mounting pipe; 17, moving pipe; 18, cross bar; 19, side rail; 20, moving frame; 21, shunt pipe; 211, support plate; 22, nozzle ring; 23, air outlet nozzle; 24, limiting plate; 25, moving rod; 26, spherical plate; 27, second compression spring; 28, clamping strip; 29, mounting shaft; 30, rotating ring; 31, clamping rod; 32, torsion spring; 33, docking pipe; 34, delivery hose; 35, fixed pipe. Specific implementation manner

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] Example 1: Refer to Figures 1-6 , a supplementary device, including an outer shell 2 fixedly installed on the top of the bottom plate 1, characterized in that the supplementary device further includes:

[0033] An oxygen storage mechanism installed in the outer shell 2, the oxygen storage mechanism includes an inner tank 4 arranged in the outer shell 2, the inner tank 4 is used for storing oxygen, and the top of the oxygen storage mechanism extends above the outer shell 2;

[0034] An exhaust mechanism, the exhaust mechanism is located on one side of the outer shell 2, pre-installed in the aquaculture pond, the exhaust mechanism is connected to the oxygen storage mechanism, and a plurality of wave makers 5 are also installed on the exhaust mechanism.

[0035] The oxygen storage mechanism further includes a mounting ring 3 fixedly installed in the outer shell 2, the inner tank 4 passes through the mounting ring 3 and is hermetically welded to the inner wall of the mounting ring 3, the mounting ring 3 suspends the inner tank 4 in the outer shell 2, an adjustable cover plate 8 is hermetically slidably connected in the inner tank 4, an intake pipe 9 and an outlet pipe 11 are respectively slidably connected through the adjustable cover plate 8, the top end of the intake pipe 9 extends above the outer shell 2 and is threadedly connected with a first docking valve 12, the first docking valve 12 is used for connecting with the oxygen delivery pipeline of an external oxygen generator, one side of the top of the outer shell 2 is fixedly installed with a booster pump 10 by threading, the suction end of the booster pump 10 extends into the outer shell 2 and is threadedly connected with the outlet pipe 11, and the outlet end of the booster pump 10 is threadedly connected with a second docking valve 13, the second docking valve 13 is connected to the exhaust mechanism.

[0036] After connecting the first docking valve 12 to the oxygen delivery pipeline of the external oxygen generator, the oxygen produced by the oxygen generator is transported into the inner tank 4 through the first docking valve 12 and the intake pipe 9. As the volume of oxygen in the inner tank 4 increases, the adjustable cover plate 8 is pushed upward to increase the oxygen storage capacity. When the booster pump 10 is started, the oxygen in the inner tank 4 can be pumped out and dispersed through the exhaust mechanism into the aquaculture pond.

[0037] The intake pipe 9 and the outlet pipe 11 are both sleeved with a first compression spring 14 located above the adjustable cover plate 8. The top and bottom ends of the first compression spring 14 are respectively fixedly connected to the inner wall of the top of the outer shell 2 and the top of the adjustable cover plate 8. The first compression spring 14 is used to elastically support the adjustable cover plate 8. After the oxygen in the inner tank 4 is pumped out, the first compression spring 14 in the stressed state pushes the adjustable cover plate 8 downward to restore the position of the adjustable cover plate 8.

[0038] The exhaust mechanism is located on one side of the outer shell 2 and is pre-installed in the aquaculture pond. The exhaust mechanism is connected to the oxygen storage mechanism, and a plurality of wave makers 5 are also installed on the exhaust mechanism. The exhaust mechanism includes a bracket, a moving frame 20 is connected to the bracket, support plates 211 are welded on both sides of the moving frame 20, and a same shunt pipe 21 is welded on the side of the two support plates 211 close to each other. A plurality of nozzle rings 22 are welded through the inner wall of one side of the shunt pipe 21 at equal intervals. A butt joint pipe 33 is welded through the top of the shunt pipe 21, and a delivery hose 34 is clamped at the top end of the butt joint pipe 33. One end of the delivery hose 34 is inserted into the second docking valve 13. The oxygen flowing out through the second docking valve 13 is transported into the shunt pipe 21 through the delivery hose 34, and then is sprayed into the water of the aquaculture pond through a plurality of nozzle rings 22 to increase the oxygen content in the aquaculture pond.

[0039] A limiting plate 24 is welded inside the nozzle ring 22. A moving rod 25 is slidably connected through the limiting plate 24. An air outlet nozzle 23 is welded on one side of the nozzle ring 22. One end of the moving rod 25 extends to be welded with a spherical plate 26, and the spherical plate 26 fits against the inner wall of the air outlet nozzle 23 to prevent the water in the aquaculture pond from flowing into the shunt pipe 21 through the air outlet nozzle 23 and the nozzle ring 22. A second compression spring 27 is sleeved on the moving rod 25. The two ends of the second compression spring 27 are respectively welded to one side of the limiting plate 24 and the other end of the moving rod 25. Under the sliding fit of the limiting plate 24 and the moving rod 25, the spherical plate 26 is horizontally slidably supported. Under the elastic support of the second compression spring 27, the spherical plate 26 is closely attached to the air outlet nozzle 23 to prevent the water in the aquaculture pond from flowing into the shunt pipe 21. After the oxygen is continuously transported into the shunt pipe 21, under the push of the air pressure, the spherical plate 26 is separated from the air outlet nozzle 23, and the oxygen is transported into the aquaculture pond.

[0040] The bracket includes two bottom beams 15. Two mounting pipes 16 are symmetrically welded to the top of the bottom beam 15. A moving pipe 17 is slidably sleeved on the mounting pipe 16. It also includes two cross bars 18 which are perpendicularly arranged with respect to the bottom beam 15. The tops of the two moving pipes 17 are welded to the corresponding same cross bar 18. A same side rail 19 is welded to the side of the two cross bars 18 close to each other. The number of side rails 19 is two. The moving frame 20 is respectively slidably connected to the two side rails 19. The bracket composed of two bottom beams 15, four mounting pipes 16, four moving pipes 17, two cross bars 18 and two side rails 19 supports the shunt pipe 21 and can adjust the height position and lateral position of the shunt pipe 21 according to actual needs.

[0041] A clamping strip 28 is fixedly installed on one side of the side rail 19. A plurality of clamping openings are equidistantly formed on one side of the clamping strip 28. Two mounting shafts 29 are symmetrically welded to the bottom of the moving frame 20. A rotating ring 30 is rotatably sleeved on the mounting shaft 29. A clamping rod 31 is welded to the bottom of the rotating ring 30. The clamping rods 31 are respectively movably clamped in the plurality of clamping openings. Two torsion springs 32 are symmetrically sleeved on the mounting shaft 29. The two ends of the torsion spring 32 are respectively welded to one side of the rotating ring 30 and one end of the mounting shaft 29. By pushing the moving frame 20, the lateral position of the shunt pipe 21 is adjusted to adjust the distance between the air outlet nozzle 23 and the wave maker 5. After the adjustment is completed, by releasing the clamping rod 31, the torsion spring 32 in the stressed state drives the rotating ring 30 to rotate, and the clamping rod 31 is moved into the corresponding clamping opening to position the moving frame 20.

[0042] This application can be used in the field of fishery breeding technology and also in other fields applicable to this application.

[0043] Example 2: Refer to Figure 1 and 7 On the basis of the first embodiment, an improved device for quickly supplementing dissolved oxygen in fish breeding is provided. It is applied to the field of fishery breeding technology. The tops of the two side rails 19 are welded with a same fixed pipe 35 through a lining plate. A plurality of wave makers 5 are fixedly installed in the fixed pipe 35 at equal intervals through bolts. One side of the wave maker 5 extends to the outside of the fixed pipe 35. The fixed pipe 35 is used to install a plurality of wave makers 5. The wave maker 5 is installed in front of the shunt pipe 21 to circulate the water in the breeding pond, so that the flowing water can be fully mixed with the oxygen entering the water.

[0044] An adjusting nut 7 is fixedly installed inside the installation pipe 16. An adjusting screw rod 6 is threadedly connected through the adjusting nut 7. The top end of the adjusting screw rod 6 penetrates through the corresponding cross bar 18 and extends above the cross bar 18. The adjusting screw rod 6 is threadedly connected with the cross bar 18. By twisting the adjusting screw rod 6, under the threaded driving action with the adjusting nut 7, the cross bar 18 is driven to move longitudinally, so as to adjust the height of the cross bar 18. When adjusting the height of the cross bar 18, the heights of a plurality of wave makers 5 and the flow dividing pipe 21 can be adjusted according to the water level in the breeding pond.

[0045] In this technical solution, the oxygen generator, the circulation pump 5, the booster pump 10 and the wave maker 5 are all controlled by the same electrical automation control cabinet.

[0046] However, as is well known to those skilled in the art, the working principles and wiring methods of the circulation pump 5, the booster pump 10 and the wave maker 5 are common knowledge, and they all belong to conventional means or well-known common sense, so they will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0047] The specification drawings in this application are only schematic. The sizes and shapes of the components shown therein are not actually limited, but only a schematic representation. In the actual implementation process, the components can be reasonably configured and adjusted according to specific requirements and actual situations.

[0048] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A device for rapidly replenishing dissolved oxygen for fish farming, comprising a housing (2) fixedly mounted on the top of a bottom plate (1), characterized in that: The supplementary device also includes: An oxygen storage mechanism installed in the outer shell (2), the oxygen storage mechanism comprising an inner liner (4) arranged in the outer shell (2), the inner liner (4) being used to store oxygen, and the top of the oxygen storage mechanism extending above the outer shell (2); The exhaust mechanism is located on one side of the outer shell (2) and is pre-installed in the culture pond. The exhaust mechanism is connected to the oxygen storage mechanism, and a plurality of wave makers (5) are also installed on the exhaust mechanism.

2. A device for rapidly replenishing dissolved oxygen for fish farming according to claim 1, characterized in that: The oxygen storage mechanism further comprises a mounting ring (3) fixedly mounted in the outer shell (2); the inner liner (4) passes through the mounting ring (3) and is sealed and welded to the inner wall of the mounting ring (3); the mounting ring (3) is used to suspend the inner liner (4) in the outer shell (2); an adjustable cover plate (8) is sealingly and slidably connected in the inner liner (4); an air inlet pipe (9) and an air outlet pipe (11) are respectively penetrated and slidably connected on the adjustable cover plate (8); the top end of the air inlet pipe (9) extends to the upper part of the outer shell (2) and is threadedly connected to a first docking valve (12); the first docking valve (12) is used to be connected to an oxygen delivery pipeline of an external oxygen concentrator; a booster pump (10) is fixedly mounted on one side of the top of the outer shell (2) by means of threads; the air intake end of the booster pump (10) extends into the inner shell (2) and is threadedly connected to the air outlet pipe (11); a second docking valve (13) is threadedly connected to the air outlet end of the booster pump (10); and the second docking valve (13) is connected to the exhaust mechanism.

3. A device for rapidly replenishing dissolved oxygen for fish farming according to claim 2, characterized in that: The air inlet pipe (9) and the air outlet pipe (11) are both sleeved with a first compression spring (14) located above the adjustable cover plate (8), and the top and bottom ends of the first compression spring (14) are respectively fixedly connected to the top inner wall of the outer shell (2) and the top of the adjustable cover plate (8).

4. A device for rapidly replenishing dissolved oxygen for fish farming according to claim 3, characterized in that: The exhaust mechanism comprises a bracket, a movable bracket (20) is connected to the bracket, support plates (211) are welded to both sides of the movable bracket (20), a same diverter pipe (21) is welded to the sides of the two support plates (211) close to each other, a plurality of nozzle rings (22) are welded through the inner wall of one side of the diverter pipe (21) at equal intervals, a butt joint pipe (33) is welded through the top of the diverter pipe (21), a delivery hose (34) is clamped on the top of the butt joint pipe (33), and one end of the delivery hose (34) is plugged into the second docking valve (13).

5. The device for rapidly replenishing dissolved oxygen for fish farming according to claim 1, characterized in that: A limiting plate (24) is welded inside the nozzle ring (22), and a moving rod (25) is slidably connected to the limiting plate (24). An air outlet nozzle (23) is welded to one side of the nozzle ring (22), and one end of the moving rod (25) extends to a spherical plate (26) welded thereto. The spherical plate (26) fits the inner wall of the air outlet nozzle (23) and can prevent water in the breeding pond from flowing into the diversion pipe (21) through the air outlet nozzle (23) and the nozzle ring (22). A second compression spring (27) is sleeved on the moving rod (25), and two ends of the second compression spring (27) are respectively welded to one side of the limiting plate (24) and the other end of the moving rod (25).

6. A device for rapidly replenishing dissolved oxygen for fish farming according to claim 4, characterized in that: The bracket comprises two bottom beams (15), two mounting tubes (16) are symmetrically welded on the top of the bottom beams (15), a moving tube (17) is slidably sleeved on the mounting tubes (16), and two cross bars (18) are arranged vertically with respect to the bottom beams (15), and the top ends of the two moving tubes (17) are welded to the same corresponding cross bar (18); The same side rail (19) is welded on the side where the two cross bars (18) are close to each other. The number of the side rails (19) is two, and the moving frame (20) is slidably connected to the two side rails (19) respectively.

7. A device for rapidly replenishing dissolved oxygen for fish farming according to claim 6, characterized in that: A clamping strip (28) is fixedly mounted on one side of the side rail (19), and a plurality of clamping slots are opened at equal intervals on one side of the clamping strip (28). Two mounting shafts (29) are symmetrically welded at the bottom of the movable frame (20). A rotating ring (30) is rotatably sleeved on the mounting shaft (29), and a clamping rod (31) is welded at the bottom of the rotating ring (30). The clamping rod (31) is movably clamped with the plurality of clamping slots respectively. Two torsion springs (32) are symmetrically sleeved on the mounting shaft (29), and two ends of the torsion spring (32) are respectively welded to one side of the rotating ring (30) and one end of the mounting shaft (29).

8. The device for rapidly replenishing dissolved oxygen for fish farming according to claim 6, characterized in that: The tops of the two side rails (19) are welded with a fixed pipe (35) through a lining plate, and a plurality of wave makers (5) are installed in the fixed pipe (35) at equal intervals by bolt fixing, and one side of the wave maker (5) extends to the outside of the fixed pipe (35).

9. The device for rapidly replenishing dissolved oxygen for fish farming according to claim 6, characterized in that: An adjusting nut (7) is fixedly installed in the mounting tube (16), an adjusting screw (6) is threadedly connected through the adjusting nut (7), the top end of the adjusting screw (6) passes through the corresponding cross bar (18) and extends to the top of the cross bar (18), and the adjusting screw (6) is threadedly connected to the cross bar (18).

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