CN110432220A - A kind of schizothoracin class cultivation oxygen increasing equipment - Google Patents

Abstract

A kind of aeration equipment for schizothoracic fish breeding, comprising an annular plate, the middle of the top side of the annular plate is fixedly connected to the bottom side of the box body, a vertical pipe is fixedly installed in the annular plate, and the upper end of the tapered pipe is fixedly connected to the lower port of the tee pipe , the upper port of the tee pipe is fixedly connected to the water inlet of the first electromagnetic valve, and the bottom side of the annular plate is fixedly installed with an annular floating plate (the buoyancy of the annular floating plate is large enough to carry the annular plate and the device on the upper part of the annular plate, and the annular floating plate The diameter of the plate is large enough to prevent the annular plate from tipping to one side). The present invention is simple in structure and ingenious in concept, integrates water spray oxygenation and aeration type aeration into one body, can realize aeration at different depths of fish ponds, can diffuse oxygenation flow in a wide range, and reduces the effect of aeration and aeration on fish feces at the bottom of fish ponds At the same time, water jet aeration can be used to collect fish feces at the bottom of the fish pond, so that a large amount of fish feces accumulated under the aerator can be cleaned up, and the fish pond can be improved, which can meet market demand and is suitable for promotion.

Description

A kind of oxygen increasing equipment for Schizothorax breeding

technical field

The invention belongs to the field of aeration devices for fish farming, in particular to an aeration device for schizothoracic fish farming.

Background technique

Aerator is a machine often used in fish farming; its main function is to increase the oxygen content in the water to ensure that the fish in the water will not be hypoxic, and it can also inhibit the growth of anaerobic bacteria in the water and prevent pool water Deterioration threatens the living environment of fish; however, the existing aerators have a single function. Water jet aeration is suitable for shallow water aeration, and air-filled aeration is suitable for deep water aeration. A single oxygenation method cannot satisfy oxygenation at different depths. In addition, inflation and oxygenation can easily disturb the fish feces at the bottom of the pond, causing the water at the bottom of the fish pond to be turbid, which is not conducive to the breathing of fish. High, a large number of fish gather under the aerator, causing a large amount of fish feces to accumulate under the aerator. The fish feces under the aerator need to be treated in time. The existing aerator has no fish feces treatment function and cannot To meet the actual needs, we have invented a kind of aeration equipment for Schizothorax breeding.

Contents of the invention

The invention provides a kind of aeration equipment for cultivating Schizothorax, which is used to solve the defects in the prior art.

The present invention is achieved through the following technical solutions:

A kind of aeration equipment for schizothoracic fish breeding, comprising an annular plate, the middle of the top side of the annular plate is fixedly connected to the bottom side of the box body, a vertical pipe is fixedly installed in the annular plate, and the upper end of the vertical pipe passes through the bottom wall of the box body and is located in the box body. The upper part inside the body, the outer circumference of the standpipe is sealed with the bottom wall of the box, the first filter screen is fixedly installed in the opening on the top side of the box, the upper end of the opening on the top side of the box is fixedly connected to the lower end of the tapered tube, and the tapered tube The upper end of the three-way pipe is fixedly connected to the lower port of the three-way pipe, the upper port of the three-way pipe is fixedly connected to the water inlet of the first solenoid valve, the water outlet of the first solenoid valve is fixedly connected to the water inlet of the water-air dual-purpose pump, and the water-air dual-purpose pump The nozzle is fixedly installed at the water outlet of the three-way pipe, the port in the middle of the tee pipe is fixedly connected to the air outlet of the second solenoid valve, the air inlet of the second solenoid valve is fixedly connected to the air outlet of the air pump, and the outer circumference of the standpipe is located at the bottom of the box to open a drainage hole , the second filter screen is fixedly installed in the drain hole; a coaxial external threaded pipe is arranged below the vertical pipe, and the upper and lower ends of the external threaded pipe are respectively fixedly connected to the inner end of the coaxial thin pipe, and the outer end of the upper thin pipe The end of the vertical pipe is connected with the lower end bearing of the vertical pipe, and a coaxial screw shaft is installed in the lower part of the vertical pipe. , the nuts can move up and down along the thin tube respectively, the outer circumference of the nuts is evenly hinged to one end of several connecting rods, the other ends of the connecting rods are respectively hinged to the middle of the ribs, and the inner ends of the ribs are respectively connected to the lower end of the outer circumference of the vertical tube Hinged connection, the outer side of the umbrella rib is fixedly installed with the same umbrella surface, the lower end of the vertical tube is fixedly connected to the upper ends of several first spring rods, and the lower part of the outer circumference of the thin tube on the lower side is fixedly connected to the lower ends of several second spring rods. The upper end of the spring rod and the lower end of the first spring rod can be respectively contacted with the bottom side or the top side corresponding to the screw nut. The lower end of the thin tube outer circumference on the lower side is evenly fixed with several impeller blades, and the bottom side of the annular plate is fixedly installed with a ring Floating plate (the buoyancy of the annular floating plate is large enough to carry the annular plate and the device on the top of the annular plate, and the diameter of the annular floating plate is large enough to prevent the annular plate from tilting to one side).

As for the aeration equipment for schizothoracic fish culture as described above, a partition is provided between the upper end of the vertical tube and the inner wall of the box, and several through grooves are evenly opened on the top side of the partition, and the through grooves There are filter plates at the bottom, the top sides of the filter plates can respectively contact and cooperate with the bottom sides of the partitions to close the through grooves, the top sides of the filter plates are fixedly connected to the lower ends of the telescopic rods, and the upper ends of the telescopic rods are respectively fixed to the top of the box body connection, the bottom side of the filter plate is fixedly installed with floating rings respectively.

According to the aeration equipment for schizothoracic fish breeding as described above, the left side of the upper end of the vertical pipe is hingedly connected to the left side of the filter screen plate through a torsion spring.

As for the aeration equipment for Schizothorax breeding as described above, the left side and the right side of the annular plate are respectively fixedly connected to one end of the rope, the other end of the rope is respectively fixedly connected to the outer circumference of the wire roller, and the rear side of the wire roller The middle is respectively fixedly connected with the front end of the motor rotating shaft.

As for the aeration equipment for schizothoracic fish breeding as described above, one side of the box body is provided with threaded through holes, and sealing covers are respectively threaded in the threaded through holes, and the sealing covers are close to the bottom of the box body.

In the aeration equipment for Schizothorax breeding as described above, the upper end of the second spring rod is fixedly connected to the same first ring that is fitted on the outer circumference of the thin tube, and the top side bearing of the first ring is connected and fitted to the The bottom side of the second circular ring on the outer periphery of the capillary, and the top side of the second circular ring can contact and fit with the bottom side of the silk nut.

The advantages of the present invention are: the present invention is simple in structure, ingenious in concept, integrates water spray oxygenation and aeration type aeration into one, can realize aeration at different depths of fish ponds, can diffuse aeration flow in a wide range, and reduce aeration and aeration Disturb the fish feces at the bottom of the fish pond, and at the same time collect the fish feces at the bottom of the fish pond by spraying water to increase aeration, so that a large amount of fish feces accumulated under the aerator can be cleaned up, and the water quality of the fish pond can be improved, which can meet the market demand and is suitable for promotion. When using the present invention, the device is vertically placed on the water surface of the fish pond. The annular floating plate can make the device float on the water surface. One end of several fixed ropes is fixedly connected with the outer periphery of the annular plate, and the other end of the fixed rope is connected to the shore. The side is fixedly connected, and the fixed rope is in a stretched state, and the device is fixed in the middle of the fish pond, and the first solenoid valve, the second solenoid valve, the water-air dual-purpose pump and the air pump are respectively connected to the output end of the controller on the bank. Through the cable connection, when it is necessary to increase oxygen in the shallow layer of the fish pond, the first solenoid valve and the water-air dual-purpose pump are respectively controlled to be energized and operated through the shore controller. At this time, the first solenoid valve is in an open state, and the second solenoid valve In a closed circuit state, the water-air dual-purpose pump passes through the first electromagnetic valve, the three-way pipe, and the conical pipe in order to form a negative pressure in the tank, and the water in the fish pond passes through the thin pipe on the lower side, the external threaded pipe, and the thin pipe on the upper side in sequence. The pipe and standpipe enter the tank, and the water in the tank is filtered by the first filter, and then enters the nozzle through the conical pipe, the three-way pipe, the first solenoid valve and the water-air dual-purpose pump, and sprays to the nozzle through the nozzle. In the air, combined with the oxygen in the air, it falls back to the water surface, increasing the oxygen content of the water near the water surface. When the water passes through the screw shaft, it drives the screw shaft to rotate forward, and the screw shaft passes through the connecting rod and the thin tube on the upper side. Drive the external threaded tube and the thin tube on the lower side to rotate, and the thin tube drives the impeller blade to rotate forward. The forward rotation of the impeller blade generates a downward thrust on the water, and the water forms a downward impact force, which can make the fish feces at the bottom of the pool Disturbed and mixed with water, it is sucked by the thin tube on the lower side, and the fish feces entering the box with the water are filtered by the first filter and collected in the box. Pull the umbrella rib downward through the connecting rod, and the umbrella rib drives the umbrella face to fold downward until the screw nut is separated from the lower end of the external threaded pipe, and the bottom side of the screw nut is in close contact with the upper end of the second spring rod, and the second spring rod is compressed At this time, the umbrella surface forms a skirt shape, covering the area where the fish dung is disturbed, which can weaken the diffusion of the fish dung below to the surroundings, and the effect of collecting fish dung is better. When the aeration is stopped, the first solenoid valve is controlled by the controller. 1. When the water and air dual-purpose pump is powered off, most of the fish feces can stay in the tank, and a small part of the fish feces will flow back into the fish pond with the water, and the water at the bottom of the tank will be discharged through the drain hole. It is discharged through the drain hole; when deep oxygenation is required, the controller controls the second solenoid valve and the air pump to be energized. At this time, the second solenoid valve is in an open circuit state, and the first solenoid valve is in a closed circuit state. The valve, three-way pipe and tapered pipe are injected into the tank to increase the internal pressure of the tank, which is conducive to the draining of fish feces inside the tank. The air inside the tank is injected into the water through the vertical pipe, thin tube and external threaded tube. The water is aerated and oxygenated. When the air flows through the screw shaft, the screw shaft rotates in the opposite direction. The screw shaft drives the impeller blades to rotate in the reverse direction through the thin tube and the external threaded tube. The impeller blades generate an upward thrust on the water to make the water flow upward. It can drive the air from the lower end of the thin tube on the lower side to flow upward with the water flow, reducing the impact and disturbance of the water flow on the fish dung at the bottom of the pool. , the silk mother moves upward, so that The screw nut and the upper end of the externally threaded tube are threadedly matched, and the top side of the screw nut is in close contact with the lower end of the first spring rod. At this time, the umbrella surface forms an inverted skirt shape. When the water flow formed by inflation impacts the inverted umbrella surface, the inverted The skirt-shaped bottom side enables the umbrella surface to diffuse water around and increase the oxygenation range.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is a structural schematic diagram of the present invention; Fig. 2 is a partial enlarged view of I of Fig. 1 .

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

A kind of aeration equipment for schizothoracic fish breeding, as shown in the figure, includes an annular plate 1, the middle of the top side of the annular plate 1 is fixedly connected to the bottom side of the box body 2, and the vertical pipe 3 is fixedly installed in the annular plate 1, and the vertical pipe 3 The upper end of the upper end passes through the bottom wall of the box body 2 and is located at the top of the box body 2, the outer periphery of the standpipe 3 is sealed and connected with the bottom wall of the box body 2, and the first filter screen 4 is fixedly installed in the opening on the top side of the box body 2, and the box body The upper end of the opening on the top side of the body 2 is fixedly connected to the lower end of the tapered pipe 5, the upper end of the tapered pipe 5 is fixedly connected to the lower port of the three-way pipe 6, and the upper port of the three-way pipe 6 is fixedly connected to the water inlet of the first solenoid valve 7, The water outlet of the first electromagnetic valve 7 is fixedly connected to the water inlet of the water-air dual-purpose pump 9, the water outlet of the water-air dual-purpose pump 9 is fixedly installed with a nozzle 36, and the port in the middle of the tee pipe 6 is fixedly connected to the outlet of the second electromagnetic valve 8. Air port, the air inlet of the second solenoid valve 8 is fixedly connected to the air outlet of the air pump 10, and the outer periphery of the standpipe 3 is positioned at the bottom of the casing 2 to offer a drain hole 11, and the second filter screen 12 is fixedly installed in the drain hole 11; the standpipe 3 A coaxial externally threaded pipe 14 is provided below, the upper and lower ends of the externally threaded pipe 14 are respectively fixedly connected to the inner ends of the coaxial thin pipe 15, and the outer end of the upper thin pipe 15 is connected to the lower end bearing of the standpipe 3 , the bearing used for the bearing connection here is a sealed bearing, and a coaxial screw shaft 37 is movably installed in the bottom of the standpipe 3. The screw shaft 37 includes a vertical shaft and a screw blade, and the screw blade is fixedly installed on the outer periphery of the vertical shaft. The lower end of the shaft 37 is fixedly connected to the upper end of the thin tube 15 on the upper side through a connecting rod. The middle part of the outer circumference of the externally threaded pipe 14 is threaded with a screw nut 19. The screw nut 19 can move up and down along the thin tube 15 respectively, and the outer circumference of the screw nut 19 is uniform. One end of several connecting rods 16 is hingedly connected, and the other end of the connecting rods 16 is hingedly connected to the middle part of the ribs 17 respectively. An umbrella surface 18, the lower end of the standpipe 3 is fixedly connected to the upper ends of several first spring rods 20, the lower part of the lower thin tube 15 outer circumference is fixedly connected to the lower ends of several second spring rods 21, and the upper ends of the second spring rods 21 1. The lower end of the first spring rod 20 can be contacted with the bottom side or the top side corresponding to the screw nut 19 respectively, and several impeller blades 22 are uniformly fixedly installed on the lower end of the thin tube 15 outer circumference of the lower side, and the bottom side of the annular plate 1 is fixedly installed. The annular floating plate 28, the buoyancy of the annular floating plate 28 is large enough to carry the annular plate 1 and the devices on the upper part of the annular plate 1, and the diameter of the annular floating plate 28 is large enough to prevent the annular plate 1 from tilting to one side. The present invention is simple in structure and ingenious in concept, integrates water spray oxygenation and air-inflated oxygenation into one body, can realize oxygenation at different depths of fish ponds, can diffuse the oxygenation flow in a wide range, and reduces the effect of aeration and oxygenation on fish manure at the bottom of the fishpond At the same time, water jet aeration can be used to collect fish feces at the bottom of the fish pond, so that a large amount of fish feces accumulated under the aerator can be cleaned up, and the water quality of the fish pond can be improved, which can meet market demand and is suitable for promotion. When using the present invention, the device is vertically placed on the water surface of the fish pond, and the annular floating plate 28 can make the device float on the water surface, and one end of several fixed ropes is fixedly connected with the outer periphery of the annular plate 1, and the other end of the fixed rope It is fixedly connected with the shore, and the fixed rope is in a stretched state, the device is fixed in the middle of the fish pond, and the first solenoid valve 7, the second solenoid valve 8, the water-air dual-purpose pump 9 and the air pump 10 are respectively connected to the shore The output end of the controller is connected by a cable. When it is necessary to increase oxygen in the shallow layer of the fish pond, the first electromagnetic valve 7 and the water-air dual-purpose pump 9 are energized and operated by the shore controller respectively. At this time, the first electromagnetic valve 7 is in an open circuit state, the second electromagnetic valve 8 is in a closed circuit state, and the water-air dual-purpose pump 9 passes through the first electromagnetic valve 7, the three-way pipe 6, and the conical pipe 5 in turn to form a negative pressure in the box body 2, and the water in the fish pond Enter the box body 2 through the thin tube 15 on the lower side, the externally threaded tube 14, the thin tube 15 on the upper side, and the standpipe 3 in sequence. Pipe 5, three-way pipe 6, first solenoid valve 7 and water-air dual-purpose pump 9 enter in the nozzle 36, and spray into the air through the nozzle 36, and fall back to the water surface after combining with the oxygen in the air, so that the water near the water surface The oxygen content increases, and when water passes through the screw shaft 37, it drives the screw shaft 37 to rotate in the forward direction, and the screw shaft 37 drives the externally threaded tube 14 and the thin tube 15 on the lower side to rotate through the connecting rod, the upper thin tube 15, and the thin tube 15 rotates. The pipe 15 drives the impeller blades 22 to rotate forward, and the forward rotation of the impeller blades 22 generates a downward thrust on the water, and the water forms a downward impact force, which can disturb the fish feces at the bottom of the pool and mix with the water, thereby being absorbed by the lower side. The thin tube 15 is inhaled, and the fish excrement that enters the box body 2 with the water is filtered by the first filter screen 4 and then gathered in the box body 2. At the same time, the rotation of the external threaded pipe 14 makes the silk nut 19 move downward, and the silk nut 19 passes through the connection. The rod 16 pulls the umbrella rib 17 downward, and the umbrella rib 17 drives the umbrella surface 18 to retract downward until the nut 19 is separated from the lower end of the externally threaded pipe 14, and the bottom side of the nut 19 is in close contact with the upper end of the second spring rod 21. , the second spring rod 21 is compressed, at this time the umbrella surface 18 forms a skirt shape, covering the area where the fish dung is disturbed, which can weaken the diffusion of the fish dung below to the surroundings, the effect of collecting fish dung is better, and stop the oxygenation When the first solenoid valve 7 and the water-air dual-purpose pump 9 are powered off by the controller, most of the fish feces can stay in the casing 2, and a small part of the fish feces returns to the fish pond with the water, and the bottom of the casing 2 The water is discharged through the drain hole 11, and the second filter screen 12 can prevent the fish feces from being discharged through the drain hole 11; when deep oxygenation is required, the controller controls the second electromagnetic valve 8 and the air pump 10 to be energized, at this time the second electromagnetic valve 8 is in an open circuit state, the first solenoid valve 7 is in a closed circuit state, and the air pump 10 injects air into the box body 2 through the second solenoid valve 8, the three-way pipe 6 and the conical pipe 5, so that the internal pressure of the box body 2 increases, which is beneficial to Drain the fish feces inside the box body 2. The air inside the box body 2 is injected into the water through the standpipe 3, the thin tube 15, and the external threaded pipe 14, and the water is aerated and oxygenated. When the air flows through the screw shaft 37, the screw shaft 37 reverse rotations, and the screw shaft 37 passes through the fine The pipe 15 and the externally threaded pipe 14 drive the impeller blades 22 to rotate in reverse, and the impeller blades 22 generate an upward thrust on the water to make the water flow upwards, which can drive the air from the lower end of the thin tube 15 on the lower side to flow upward with the water flow, reducing the water flow. The impact of the flow on the fish manure at the bottom of the pool is disrupted. At the same time, the screw nut 19 is engaged with the externally threaded pipe 14 under the upward elastic thrust of the second spring rod 21, and the screw nut 19 moves upward, so that the screw nut 19 and the externally threaded pipe 14 The upper end of the upper end of the screw nut 19 is in close contact with the lower end of the first spring rod 20. At this time, the umbrella surface 18 forms an inverted skirt shape. When the water flow formed by inflation impacts the inverted skirt formed by the inverted umbrella surface 18 Shaped bottom side makes, umbrella surface 18 can make water diffuse to all around, increases oxygenation range.

Specifically, as shown in the figure, a partition 23 is provided between the upper end of the outer circumference of the standpipe 3 described in this embodiment and the inner wall of the box body 2, and several through grooves 24 are evenly opened on the top side of the partition 23, through which The bottom of the groove 24 is respectively provided with a filter plate 25, the top side of the filter plate 25 can respectively contact with the bottom side of the dividing plate 23 to make the through groove 24 closed, the top side of the filter plate 25 is fixedly connected to the lower end of the telescopic rod 26, and the telescopic rod The upper ends of 26 are respectively fixedly connected with the top of the box body 2, and the bottom side of the filter plate 25 is respectively fixedly equipped with floating rings 27, and the floating rings 27 can make the filter 25 float upwards. When pumping water and spraying oxygen, the water in the box body 2 can make the floating ring 27 float upwards, the telescopic rod 26 shortens, and the top side of the filter plate 25 contacts and cooperates with the bottom side of the partition plate 23 to seal the through groove 24, so as to avoid the box body 2 The fish feces at the bottom are mixed with the water at the upper part of the box body 2 through the through groove 24, and the water at the bottom of the box body 2 enters the upper part of the box body 2 through the through groove 24 after being filtered by the filter plate 25; The filter plate 25 moves downward under the action of gravity, the telescopic rod 26 is elongated, and the fish feces filtered out from the top of the partition plate 23 can enter the bottom of the box body 2 through the through groove 24, so as to avoid the impact on the filtered fish feces when the water is sprayed and oxygenated each time. The fish feces are filtered twice to increase the filtration efficiency.

Specifically, as shown in the figure, the left side of the upper end of the standpipe 3 described in this embodiment is hingedly connected to the left side of the filter screen plate 29 through a torsion spring. The screen filter plate 29 can be rotated counterclockwise to open along the hinge shaft under the action of the water flow in the standpipe 3, and when the vertical pipe 3 stops pumping upwards, the screen filter plate 29 can be rotated clockwise and closed under the action of the torsion spring, thereby avoiding The fish excrement on casing 2 top returns in the vertical pipe 3 again in a large amount.

Further, as shown in the figure, the left side and the right side of the annular plate 1 described in this embodiment are respectively fixedly connected to one end of the rope 30, and the other end of the rope 30 is respectively fixedly connected to the outer circumference of the wire roller 13, and the rear side of the wire roller 13 The middle of each is fixedly connected to the front end of the motor 31 rotating shaft. Motor 31 is respectively fixed on the bank of fishpond, makes rope 30 be in pull state, energizes to motor 31, when making motor 31 forward rotation or reverse simultaneously, the rope on one side is wound on the line roller 13, and the rope 30 on the other side Tear off from line roller 13, make this device be pulled to the motor 31 of one side, realize the position adjustment of oxygenation device on the water surface.

Furthermore, as shown in the figure, one side of the box body 2 described in this embodiment is provided with a threaded through hole 32 , and a sealing cover 33 is respectively threaded in the threaded through hole 32 , and the sealing cover 33 is close to the bottom of the box body 2 . The sealing cover 33 is screwed out from the threaded through hole 32 to clean up the fish feces in the box body 2 .

Furthermore, as shown in the figure, the upper end of the second spring rod 21 described in this embodiment is fixedly connected to the same first ring 34 that is set on the outer circumference of the thin tube 15, and the top side bearing of the first ring 34 is connected to the set On the bottom side of the second ring 35 on the outer periphery of the thin tube 15 , the top side of the second ring 35 can contact and fit with the bottom side of the wire nut 19 . When the top side of the second ring 35 is in contact with the bottom side of the nut 19, the second ring 35 is relatively fixed with the nut 19, so that the upper end of the second spring bar 21 is directly in contact with the bottom side of the nut 19. During the friction to the bottom side of the silk mother 19.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (6)

1. A kind of aeration equipment for schizothoracic fish breeding, characterized in that: it includes an annular plate (1), the middle of the top side of the annular plate (1) is fixedly connected to the bottom side of the box (2), and the inside of the annular plate (1) The standpipe (3) is fixedly installed, the upper end of the standpipe (3) passes through the bottom wall of the box body (2) and is located at the upper part of the inside of the box body (2), and the outer circumference of the standpipe (3) and the bottom of the box body (2) The wall is sealed and connected, and the first filter screen (4) is fixedly installed in the opening on the top side of the box body (2), and the upper end of the top side opening of the box body (2) is fixedly connected to the lower end of the tapered pipe (5), and the tapered pipe (5) ) is fixedly connected to the lower port of the tee pipe (6), the upper port of the tee pipe (6) is fixedly connected to the water inlet of the first solenoid valve (7), and the water outlet of the first solenoid valve (7) is fixedly connected to the water The water inlet of the air dual-purpose pump (9) and the water outlet of the water-air dual-purpose pump (9) are fixedly installed with a nozzle (36), and the port in the middle of the tee pipe (6) is fixedly connected to the air outlet of the second solenoid valve (8) , the air inlet of the second solenoid valve (8) is fixedly connected to the air outlet of the air pump (10), and the outer circumference of the standpipe (3) is located at the bottom of the box (2) to open a drain hole (11), and the drain hole (11) The second filter screen (12) is fixedly installed; a coaxial externally threaded pipe (14) is provided below the standpipe (3), and the upper and lower ends of the externally threaded pipe (14) are respectively fixedly connected to the coaxial thin pipe (15) The inner end of the thin tube (15) on the upper side is connected with the lower end bearing of the standpipe (3), and a coaxial screw shaft (37) is installed in the lower part of the standpipe (3). The screw shaft (37) The lower end of the upper side and the upper end of the thin tube (15) on the upper side are fixedly connected by a connecting rod, and the middle part of the outer circumference of the externally threaded pipe (14) is threaded with a screw nut (19), and the screw nut (19) can go up and down along the thin tube (15) respectively. Move, the outer circumference of the nut (19) is evenly hinged to connect one end of several connecting rods (16), the other ends of the connecting rods (16) are respectively hinged to connect the middle part of the ribs (17), and the inner ends of the ribs (17) are respectively It is hingedly connected with the lower end of the vertical pipe (3), the outer side of the rib (17) is fixedly installed with the same umbrella surface (18), and the lower end of the vertical pipe (3) is fixedly connected with the upper ends of several first spring rods (20). The lower part of the thin tube (15) outer circumference on the lower side is fixedly connected to the lower ends of several second spring rods (21), and the upper end of the second spring rods (21) and the lower end of the first spring rods (20) can be connected with the nuts ( 19) The corresponding bottom side or top side is contacted, and the lower end of the thin tube (15) on the lower side is uniformly fixed with several impeller blades (22), and the bottom side of the annular plate (1) is fixedly installed with an annular floating plate (28) (the buoyancy of the annular floating plate (28) is large enough to carry the device on the annular plate (1) and the annular plate (1) top, and the diameter of the annular floating plate (28) is large enough to prevent the annular plate (1) from side tilt). 2. A kind of aeration equipment for schizothoracic fish culture according to claim 1, characterized in that: a partition ( 23), the top side of the partition (23) is evenly provided with several through grooves (24), and the bottom of the through grooves (24) is respectively provided with a filter plate (25), and the top side of the filter plate (25) can be separated from the partition The bottom side of (23) contacts and cooperates to make the through groove (24) closed, the top side of the filter plate (25) is fixedly connected with the lower end of the telescopic rod (26), and the upper end of the telescopic rod (26) is connected with the top of the box body (2) respectively. Fixedly connected, the bottom side of the filter plate (25) is respectively fixedly installed with floating rings (27). 3. The aeration equipment for schizothoracic fish breeding according to claim 2, characterized in that: the left side of the upper end of the vertical pipe (3) is hinged to the left side of the filter screen plate (29) through a torsion spring . 4. The aeration equipment for schizothoracic fish culture according to claim 1, characterized in that: the left side and the right side of the annular plate (1) are respectively fixedly connected to one end of the rope (30), and the rope ( The other end of 30) is respectively fixedly connected to the outer circumference of the wire roller (13), and the middle of the rear side of the wire roller (13) is respectively fixedly connected to the front end of the rotating shaft of the motor (31). 5. The aeration equipment for schizothoracic fish culture according to claim 1, characterized in that: one side of the box (2) is provided with a threaded through hole (32), and the threaded through hole (32) Thread the sealing cover (33) respectively, and the sealing cover (33) is close to the bottom of the box body (2). 6. The aeration equipment for schizothoracic fish breeding according to claim 1, characterized in that: the upper end of the second spring rod (21) is fixedly connected to the same second spring rod (21) that is set on the outer periphery of the thin tube (15). An annulus (34), the top side bearing of the first annulus (34) is connected and sleeved on the bottom side of the second annulus (35) of tubule (15) periphery, and the top side of the second annulus (35) can Fits in contact with the bottom side of the nut (19).