Selecting device for acrossocheilus lateralis breeding

Abstract

The invention belongs to the technical field of aquaculture, and particularly relates to a selecting device for acrossocheilus lateralis breeding. According to the scheme, the selecting device comprises a breeding pond and a transparent window, one side of the breeding pond is provided with an opening, the transparent window is fixedly connected to the inner wall of the opening in the side face of the breeding pond, and the bottom of one side of the breeding pond is fixedly connected with a water suction pump; the water pumping end of the water pump is fixedly connected with a water pumping pipe, and one end of the water pumping pipe extends into the breeding pond. According to the device, fish fries are promoted to actively swim to penetrate through the isolation plates to be classified and screened, the fish fries are prevented from being directly damaged by screening equipment in the classification process, the influence of the classification process on the survival rate of the fish fries is reduced, the isolation plates are obliquely arranged, and the survival rate of the fish fries is increased under the condition of the same water level. The number of the first sieve holes and the second sieve holes immersed in water can be increased, fish fries can penetrate through the isolation plate, the fish fry grading efficiency is improved, and the intercepting net plays an intercepting role at a pipe opening of the water pumping pipe to prevent the fish fries from entering the water pumping pipe.

Description

Technical Field

[0001] The invention relates to the technical field of aquaculture, in particular to a selection device for breeding chub mackerel. Background Art

[0002] As an important economic fish, the factory-based artificial breeding of the side-stripe bream is crucial to its development. Traditional seedling selection relies on manual catching and visual sorting, which is not only inefficient but also easily causes mechanical damage to the fry, leading to a decrease in survival rate. Existing technologies, particularly in the grading and selection of fry, lack precise and efficient automated equipment, making it difficult to meet the demands of large-scale production.

[0003] After searching, a Chinese patent application with application publication number CN216821319U disclosed a long-snout catfish seedling selection pond, which belongs to the technical field of fish seedling selection devices, including a selection pond, a fish control system, a fish picking board, and an oxygenation system.

[0004] The above-mentioned device cannot guide the fry to swim between different areas of the pool through water flow, and the fry will not actively pass through the screening, resulting in grading failure, and the number of screening channels per unit volume of water is small. Based on this, this patent proposes a selection device for breeding side-striped guppies, which drives the fry to actively pass through the inclined isolation plate through circulating water flow to achieve graded screening, significantly improving the grading efficiency and reducing the fry damage rate. Summary of the Invention

[0005] Based on the technical problem that the existing technology easily causes damage to the fry when selecting the fry, the present invention proposes a selection device for breeding the side-striped bream.

[0006] The present invention proposes a selection device for breeding side-striped mullet, comprising a breeding pool and a transparent window, wherein one side of the breeding pool is set to be an opening, the transparent window is fixedly connected to the inner wall of the opening on the side of the breeding pool, the bottom of one side of the breeding pool is fixedly connected to a water pump, the water pumping end of the water pump is fixedly connected to a water pumping pipe, one end of the water pumping pipe extends to the interior of the breeding pool, the pipe mouth of the water pumping pipe at one end inside the breeding pool is fixedly connected to an interception net, the drainage end of the water pump is fixedly connected to a return pipe, one end of the return pipe is plugged into the top of the breeding pool on the side away from the water pumping pump, the interior of the breeding pool is slidably connected to two inclined isolation plates, the tops of the two isolation plates are fixedly connected to the same A locking mechanism, the top of the locking mechanism is fixedly connected with a universal joint, the top of the breeding pool close to the water pump is fixedly connected with a winch, the drum of the winch is wound with a steel cable, one end of the steel cable is rotatably connected to the locking mechanism through a universal joint, the top of one side of the breeding pool is fixedly connected with a bracket, the top of the bracket is fixedly connected with a horizontal axis, one end of the horizontal axis is rotatably connected to a fixed pulley, the middle part of the steel cable is clamped in the top wheel groove of the fixed pulley, the plate body of the isolation plate away from the interception net is provided with a first sieve hole, the plate body of the isolation plate close to the interception net is provided with a second sieve hole, the aperture of the first sieve hole is larger than the aperture of the second sieve hole, and the aperture of the second sieve hole is larger than the aperture of the mesh of the interception net.

[0007] Preferably, the drainage end of the water pump is provided with a three-way valve, which is provided with a water inlet and two water outlets. The drainage end of the water pump is connected to the water inlet of the three-way valve, one of the water outlets of the three-way valve is fixedly connected to a drain pipe, and the return pipe is fixedly connected to the drainage end of the water pump through the other water outlet of the three-way valve.

[0008] Preferably, the tops of the two isolation plates are fixedly connected to limiting beams, the two limiting beams are clamped on the top of the breeding pool, and the locking mechanism is fixedly connected between the two limiting beams.

[0009] Preferably, the locking mechanism includes a sleeve, two push rod motors, two positioning pins and four hangers, the two positioning pins are respectively slidably connected to the two ends of the inner cavity of the sleeve, the two push rod motors are symmetrically fixed to the outer wall of the top of the sleeve, the telescopic ends of the two push rod motors are respectively fixedly connected to the top of the two positioning pins, the four hangers are respectively fixedly connected to the four corners of the sleeve, and the four hangers are all clamped on the top of the breeding pool. A pin groove is opened in the middle position of the top of the two limiting beams, and the two positioning pins are respectively inserted into the inside of the two pin grooves.

[0010] Preferably, one end of the water pumping pipe located inside the breeding pool is threadedly connected to a threaded sleeve, the interception net is fixedly connected to the inner wall of the threaded sleeve, and a filter is provided in the middle of the return pipe.

[0011] Preferably, a mounting frame is fixedly connected to the top of the outer wall of the breeding pool on the side close to the water pump, and the winch is fixedly connected to the inside of the mounting frame.

[0012] Preferably, the top of the bracket close to the fixed pulley is fixedly connected to a connecting rod, the end of the connecting rod away from the bracket is fixedly connected to a support rod, the end of the support rod close to the winch is fixedly connected to a first wire groove, and the end of the support rod close to the universal joint is fixedly connected to a second wire groove, and the parts of the steel cable located on both sides of the fixed pulley are respectively clamped in the inside of the first wire groove and the second wire groove.

[0013] Preferably, the inner wall of the bottom of the breeding pool is fixedly connected with two limit slots adapted to the isolation plates, and the bottom plates of the two isolation plates are respectively inserted into the inside of the two limit slots.

[0014] Preferably, the inner wall of the breeding pool away from the transparent window is fixedly connected to two roller grooves, and the interiors of the two roller grooves are rotatably connected to equidistantly distributed support rollers, and the sides of the two isolation plates close to the water pump are respectively attached to the outer walls of the support rollers inside the two roller grooves.

[0015] Preferably, the inner wall of the breeding pool away from the transparent window is fixedly connected with two guide rails, and the two guide rails are respectively located on the side of the two isolation plates away from the water pump. Sliders are slidably connected to the inside of the two guide rails, and push rods are fixedly connected to the side of the two sliders close to the water pump. The two push rods are fixedly connected to the ends of the water pumps close to the water pumps. The two pressure plates are respectively attached to the two isolation plates, and the sides of the two pressure plates attached to the isolation plates are set as fitting surfaces. The two sliders are fixedly connected with springs on the side away from the water pump. The two springs are respectively fixedly connected to the inner wall of the two guide rails away from the water pump. The top of the pressure plate fitting surface is set as a guide arc surface, the middle of the pressure plate fitting surface is fixedly connected to a cleaning brush, and the bottom of the pressure plate fitting surface is rotatably connected to a limiting roller.

[0016] Compared with the prior art, the present invention provides a selection device for breeding smelt, which has the following beneficial effects:

[0017] 1. A selection device for breeding side-striped guppies is provided with a water pump, a reflux pipe, an isolation plate, a first sieve hole and a second sieve hole. By promoting the fry to actively swim through the isolation plate for grading and screening, the fry are prevented from being directly damaged by the screening equipment during the grading process, and the influence of the grading process on the survival rate of the fry is reduced. The isolation plate is set at an angle. Under the condition of the same water level, the number of the first sieve hole and the second sieve hole immersed in the water can be increased, which is conducive to the fry passing through the isolation plate and improving the fry grading efficiency. The interception net plays an interception role at the pipe mouth of the water pump to prevent the fry from entering the water pump.

[0018] 2. This is a selection device for breeding side-striped guppies. By setting a winch, a push rod motor and a positioning pin, the winch winds up the steel cable, and after the fixed pulley changes the direction of the steel cable, the two isolation plates can be pulled up along their own inclination direction, which is convenient for regular dredging and cleaning of the first sieve hole and the second sieve hole to ensure the normal use of the device. The two isolation plates are connected as a whole through the locking mechanism, so that the winch can pull the two isolation plates synchronously. When one of the isolation plates needs to be separated from the locking mechanism, the push rod motor connected to the isolation plate is controlled to drive the positioning pin to retract from the pin groove of the limiting beam at the top of the isolation plate, so that the isolation plate can be separated from the locking mechanism. At this time, the winch can independently control the movement of the other isolation plate connected to the locking mechanism.

[0019] 3. This selection device for breeding side-striped guppies is provided with a support roller, a pressure plate, a spring, a guide rail and a cleaning brush. The support roller supports the isolation plate from the side, so that the isolation plate can remain stable during the screening process and will not deviate or shake due to water flow impact or other factors, thereby ensuring the normal operation and screening effect of the device. When the isolation plate moves under the influence of the winch, the support roller rotates under the influence of friction, thereby achieving dynamic support for the isolation plate and making the movement of the isolation plate smoother. When the pressure plate fits against the side of the isolation plate, the spring is in a compressed state, and the reaction force of the spring against the compression pushes the slider, push rod and pressure plate toward the isolation plate, thereby The side of the isolation plate is pressed and fixed together with the support roller. The guide rail limits the moving path of the slider, and then limits the moving path of the pressure plate. When the winch drives the isolation plate to move, the cleaning brush and the isolation plate slide relative to each other, cleaning the first sieve hole or the second sieve hole on the isolation plate. Under the working condition that the isolation plate is not convenient to be completely removed from the breeding pool, the isolation plate can be driven by the winch to make reciprocating motion to realize automatic cleaning of the isolation plate. The limiting roller converts part of the sliding friction between the contact surface of the pressure plate and the isolation plate into rolling friction, reducing the wear between the pressure plate and the isolation plate. The guide arc surface facilitates the insertion of the isolation plate between the pressure plate and the support roller when installing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a selection device for breeding side-striped glaucus proposed in the present invention;

[0021] Figure 2 This is a schematic diagram of the locking mechanism structure of a selection device for breeding side-striped bream proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the guide rail and pressure plate structure of a selection device for breeding side-striped bream proposed by the present invention;

[0023] Figure 4This is a schematic diagram of the support rod structure of a selection device for breeding side-striped bream proposed by the present invention;

[0024] Figure 5 This is a schematic diagram of the roller trough and support roller structure of a selection device for breeding side-striped glaucus proposed in the present invention;

[0025] Figure 6 This is a schematic diagram of the first sieve hole, the second sieve hole and the intercepting net structure of a selection device for breeding side-striped bream proposed by the present invention;

[0026] Figure 7 This is a schematic structural diagram from another perspective of a selection device for breeding side-striped glaucus proposed by the present invention;

[0027] Figure 8 This is a top view of a selection device for breeding side-stripe guppies proposed by the present invention.

[0028] Figure: 1, breeding tank; 2, transparent window; 3, water pump; 4, drainage pipe; 5, water pump; 6, threaded sleeve; 7, interception net; 8, return pipe; 9, filter; 10, isolation plate; 11, limit beam; 12, limit slot; 13, first sieve hole; 14, second sieve hole; 15, support roller; 16, guide rail; 17, slider; 18, spring; 19, push rod; 20, pressure plate; 21 , sleeve; 22. Push rod motor; 23. Locating pin; 24. Universal joint; 25. Hanger; 26. Mounting frame; 27. Winch; 28. Steel cable; 29. Fixed pulley; 30. Horizontal axis; 31. Bracket; 32. Connecting rod; 33. Support rod; 34. First wire groove; 35. Second wire groove; 36. Guide arc surface; 37. Cleaning brush; 38. Limit roller; 39. Roller groove; 40. Pin groove. DETAILED DESCRIPTION

[0029] 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 are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figure 1-8, a picking device for breeding side-striped mullet, comprises a breeding pool 1 and a transparent window 2. One side of the breeding pool 1 is set to an opening, and the transparent window 2 is fixedly connected to the inner wall of the side opening of the breeding pool 1. A water pump 3 is fixedly connected to the bottom of one side of the breeding pool 1, and the water pumping end of the water pump 3 is fixedly connected to a water pumping pipe 5. One end of the water pumping pipe 5 extends to the interior of the breeding pool 1, and the pipe mouth of the water pumping pipe 5 at one end inside the breeding pool 1 is fixedly connected to an interception net 7. The drainage end of the water pump 3 is fixedly connected to a return pipe 8, and one end of the return pipe 8 is plugged into the top of the breeding pool 1 away from the side of the water pump 3. Two inclined isolation plates 10 are slidably connected to the inside of the breeding pool 1, and the tops of the two isolation plates 10 are fixedly connected to the same locking mechanism. The top of the locking mechanism is fixed A universal joint 24 is fixedly connected to the top of the breeding pool 1 near the water pump 3, and a winch 27 is fixedly connected to the top. The drum of the winch 27 is wound with a steel cable 28, and one end of the steel cable 28 is rotatably connected to the locking mechanism through the universal joint 24. A bracket 31 is fixedly connected to the top of the breeding pool 1, and a transverse axis 30 is fixedly connected to the top of the bracket 31. One end of the transverse axis 30 is rotatably connected to a fixed pulley 29, and the middle part of the steel cable 28 is clamped in the top wheel groove of the fixed pulley 29. A first sieve hole 13 is provided on the plate body of the isolation plate 10 away from the interception net 7, and a second sieve hole 14 is provided on the plate body of the isolation plate 10 close to the interception net 7. The aperture of the first sieve hole 13 is larger than the aperture of the second sieve hole 14, and the aperture of the second sieve hole 14 is larger than the mesh aperture of the interception net 7.

[0031] When in use, aquaculture water is injected into the breeding pond 1, and the two isolation plates 10 divide the internal space of the breeding pond 1 into three breeding areas. When selecting fry, the fry are poured into the breeding area farthest from the water pump 3. The water pump 3 is started, and the water inside the breeding pond 1 is pumped out through the water pump pipe 5, and then injected into the breeding pond 1 through the return pipe 8, forming a circulating water flow, which promotes the fry to swim to the breeding area closest to the water pump 3. The first sieve hole 13 and the second sieve hole 14 are used to realize the graded screening of fry of different sizes. The three breeding areas correspond to fry of three sizes respectively. After the winch 27 winds up the steel cable 28 and changes its direction through the fixed pulley 29, the two isolation plates 10 can be pulled up along their own inclination direction, which is convenient for regular dredging and cleaning of the first sieve holes 13 and the second sieve holes 14 to ensure the normal use of the device. The interception net 7 plays an interception role at the pipe mouth of the water pump 5 to prevent the fry from entering the water pump 5. The isolation plate 10 is set at an angle. Under the condition of the same water level, the number of the first sieve holes 13 and the second sieve holes 14 immersed in the water can be increased, which is conducive to the fry passing through the isolation plate 10 and improving the fry grading efficiency.

[0032] In the present invention, a three-way valve is provided at the drainage end of the water pump 3. The three-way valve is provided with a water inlet and two water outlets. The drainage end of the water pump 3 is connected to the water inlet of the three-way valve. One of the water outlets of the three-way valve is fixedly connected to the drain pipe 4. The return pipe 8 is fixedly connected to the drainage end of the water pump 3 through the other water outlet of the three-way valve. When the water pump 3 is started, the water in the breeding pond 1 is pumped out through the pumping pipe 5. When it is necessary to screen the fry through the circulating water flow, the return pipe 8 is controlled to be connected through the three-way valve, and the drain pipe 4 is controlled to be closed. At this time, the pumped water returns to the breeding pond 1 through the return pipe 8. When it is necessary to change the water, the drain pipe 4 is controlled to be connected through the three-way valve, and the return pipe 8 is controlled to be closed. At this time, the water in the breeding pond 1 is discharged from the drain pipe 4. After it is drained, water can be added to the breeding pond 1 again.

[0033] In the present invention, the tops of the two isolation plates 10 are fixedly connected to the limiting beams 11, and the two limiting beams 11 are clamped on the top of the breeding pool 1. The locking mechanism is fixedly connected between the two limiting beams 11. The isolation plates 10 are hung in the breeding pool 1 through the limiting beams 11, and the isolation plates 10 are limited from above to keep the isolation plates 10 in an inclined state.

[0034] In the present invention, the locking mechanism includes a sleeve 21, two push rod motors 22, two positioning pins 23 and four hangers 25. The two positioning pins 23 are respectively slidably connected to the two ends of the inner cavity of the sleeve 21, and the two push rod motors 22 are symmetrically fixed to the outer wall of the top of the sleeve 21. The telescopic ends of the two push rod motors 22 are respectively fixedly connected to the tops of the two positioning pins 23. The four hangers 25 are respectively fixedly connected to the four corners of the sleeve 21. The four hangers 25 are all clamped on the top of the breeding pool 1. The middle position of the top of the two limit beams 11 is provided with a pin groove 40. The positioning pins 23 are respectively inserted into the inside of the two pin grooves 40, and the two isolation plates 10 are connected as a whole through the locking mechanism, so that the winch 27 can pull the two isolation plates 10 synchronously. When one of the isolation plates 10 needs to be separated from the locking mechanism, the push rod motor 22 connected to the isolation plate 10 is controlled to drive the positioning pin 23 to retract from the pin groove 40 of the limiting beam 11 at the top of the isolation plate 10, so that the isolation plate 10 can be separated from the locking mechanism. At this time, the winch 27 can independently control the movement of the other isolation plate 10 connected to the locking mechanism.

[0035] In the present invention, one end of the water pumping pipe 5 located inside the breeding pond 1 is threadedly connected to a threaded sleeve 6, an interception net 7 is fixedly connected to the inner wall of the threaded sleeve 6, and a filter 9 is provided in the middle of the return pipe 8. The interception net 7 is fixed at the pipe mouth of the water pumping pipe 5 through the threaded sleeve 6, so that the interception net 7 can be easily installed. When the interception net 7 is blocked or damaged due to long-term use, it is easy to replace to ensure the normal screening of fry. Interception nets 7 with different apertures can be replaced as needed to meet different screening requirements. The filter 9 can filter the returned water to remove impurities and fry feces in the water to ensure that the water flowing back into the breeding pond 1 is clean, providing a good growth environment for the fry.

[0036] In the present invention, a mounting bracket 26 is fixedly connected to the top of the outer wall of the breeding pool 1 near the water pump 3, and a winch 27 is fixedly connected to the inside of the mounting bracket 26. The winch 27 is fixed to the outside of the breeding pool 1 through the mounting bracket 26, so that the position of the winch 27 is relatively fixed, which is convenient for operation.

[0037] In the present invention, a connecting rod 32 is fixedly connected to the top of the bracket 31 near the fixed pulley 29, and a support rod 33 is fixedly connected to the end of the connecting rod 32 away from the bracket 31. The end of the support rod 33 near the winch 27 is fixedly connected to the first wire groove 34, and the end of the support rod 33 near the universal joint 24 is fixedly connected to the second wire groove 35. The parts of the steel cable 28 located on both sides of the fixed pulley 29 are respectively clamped in the inside of the first wire groove 34 and the second wire groove 35. When the winch 27 reels in the steel cable 28, the setting of the support rod 33 further enhances the support for the steel cable 28, and the first wire groove 34 and the second wire groove 35 play a guiding and limiting role for the steel cable 28, ensuring that the steel cable 28 will not deviate or entangle during movement.

[0038] In the present invention, two limiting slots 12 adapted for the isolation panels 10 are fixedly connected to the inner wall of the bottom of the breeding pool 1. The bottom plates of the two isolation panels 10 are respectively inserted into the two limiting slots 12. The limiting slots 12 provide stable support and positioning for the isolation panels 10 from the bottom, making it easy for the isolation panels 10 to be installed at a preset angle and position.

[0039] In the present invention, two roller grooves 39 are fixedly connected to the inner wall of the breeding pool 1 away from the transparent window 2, and the interior of the two roller grooves 39 are rotatably connected with equidistantly distributed support rollers 15. The side surfaces of the two isolation plates 10 close to the water pump 3 are respectively attached to the outer walls of the support rollers 15 inside the two roller grooves 39. The isolation plates 10 are supported from the side by the support rollers 15, so that the isolation plates 10 can remain stable during the screening process and will not be offset or shaken due to water flow impact or other factors, thereby ensuring the normal operation and screening effect of the device. When the isolation plates 10 are moved by the winch 27, the support rollers 15 rotate under the influence of friction, thereby realizing dynamic support for the isolation plates 10 and making the movement of the isolation plates 10 smoother.

[0040] In the present invention, the inner wall of the breeding pool 1 away from the transparent window 2 is fixedly connected to two guide rails 16, the two guide rails 16 are respectively located on the side of the two isolation plates 10 away from the water pump 3, the interior of the two guide rails 16 are slidably connected to the slider 17, the two sliders 17 are fixedly connected to the side close to the water pump 3, the two push rods 19 are fixedly connected to the end close to the water pump 3 of the two push rods 19 are fixedly connected to the pressure plate 20, the two pressure plates 20 are respectively attached to the two isolation plates 10, and the two pressure plates 20 are attached to the two isolation plates 10. The sides of the isolation plate 10 are all set as fitting surfaces, and the two sliders 17 are fixedly connected to the side away from the water pump 3 with a spring 18. The two springs 18 are respectively fixedly connected to the inner wall of the two guide rails 16 away from the water pump 3. The top of the fitting surface of the pressure plate 20 is set as a guide arc surface 36. The middle of the fitting surface of the pressure plate 20 is fixedly connected with a cleaning brush 37. The bottom of the fitting surface of the pressure plate 20 is rotatably connected to the limiting roller 38. When the pressure plate 20 fits the side of the isolation plate 10, the spring 18 is in In the compressed state, the reaction force of the spring 18 against the compression pushes the slider 17, the push rod 19 and the pressure plate 20 toward the isolation plate 10, thereby pressing the side of the isolation plate 10, and cooperating with the support roller 15 to fix the isolation plate 10. The guide rail 16 limits the moving path of the slider 17, and then limits the moving path of the pressure plate 20. When the winch 27 drives the isolation plate 10 to move, the cleaning brush 37 slides relative to the isolation plate 10, cleaning the first sieve hole 13 or the second sieve hole 14 on the isolation plate 10. Under the working condition that the isolation plate 10 is not convenient to be completely removed from the breeding tank 1, the winch 27 can be used to drive the isolation plate 10 to reciprocate to realize automatic cleaning of the isolation plate 10. The limiting roller 38 converts part of the sliding friction between the fitting surface of the pressure plate 20 and the isolation plate 10 into rolling friction, reducing the wear between the pressure plate 20 and the isolation plate 10. The guide arc surface 36 facilitates the insertion of the isolation plate 10 between the pressure plate 20 and the support roller 15 when installing.

[0041] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A selection device for breeding side-striped bream, comprising a breeding pool (1) and a transparent window (2), wherein one side of the breeding pool (1) is set as an opening, and the transparent window (2) is fixedly connected to the inner wall of the side opening of the breeding pool (1), characterized in that: The bottom of one side of the breeding pool (1) is fixedly connected to a water pump (3), the water pumping end of the water pump (3) is fixedly connected to a water pumping pipe (5), one end of the water pumping pipe (5) extends to the interior of the breeding pool (1), the pipe mouth of the water pumping pipe (5) located at one end inside the breeding pool (1) is fixedly connected to an interception net (7), the drainage end of the water pump (3) is fixedly connected to a return pipe (8), one end of the return pipe (8) is plugged into the top of the breeding pool (1) away from the water pump (3), the interior of the breeding pool (1) is slidably connected to two inclined isolation plates (10), the tops of the two isolation plates (10) are fixedly connected to the same locking mechanism, the top of the locking mechanism is fixedly connected to a universal joint (24), the top of the breeding pool (1) close to the water pump (3) is fixedly connected to a winch ( 27), the drum of the winch (27) is wound with a steel cable (28), one end of the steel cable (28) is rotatably connected to the locking mechanism through a universal joint (24), the top of one side of the breeding pool (1) is fixedly connected with a bracket (31), the top of the bracket (31) is fixedly connected with a transverse shaft (30), one end of the transverse shaft (30) is rotatably connected with a fixed pulley (29), the middle part of the steel cable (28) is clamped in the top wheel groove of the fixed pulley (29), the plate body of the isolation plate (10) away from the interception net (7) is provided with a first sieve hole (13), the plate body of the isolation plate (10) close to the interception net (7) is provided with a second sieve hole (14), the aperture of the first sieve hole (13) is larger than the aperture of the second sieve hole (14), and the aperture of the second sieve hole (14) is larger than the mesh aperture of the interception net (7).

2. A selection device for breeding of side-striped glaucus according to claim 1, characterized in that: The drainage end of the water pump (3) is provided with a three-way valve, which is provided with a water inlet and two water outlets. The drainage end of the water pump (3) is communicated with the water inlet of the three-way valve, one of the water outlets of the three-way valve is fixedly connected to a drainage pipe (4), and the return pipe (8) is fixedly connected to the drainage end of the water pump (3) through the other water outlet of the three-way valve.

3. The selection device for breeding of side-striped bream according to claim 1, characterized in that: The tops of the two isolation plates (10) are fixedly connected to the limiting beams (11), the two limiting beams (11) are clamped on the top of the breeding pool (1), and the locking mechanism is fixedly connected between the two limiting beams (11).

4. The selection device for breeding of side-striped bream according to claim 3, characterized in that: The locking mechanism comprises a sleeve (21), two push rod motors (22), two positioning pins (23) and four hangers (25), the two positioning pins (23) are respectively slidably connected to the two ends of the inner cavity of the sleeve (21), the two push rod motors (22) are symmetrically fixed to the outer wall of the top of the sleeve (21), the telescopic ends of the two push rod motors (22) are respectively fixedly connected to the tops of the two positioning pins (23), the four hangers (25) are respectively fixedly connected to the four corners of the sleeve (21), and the four hangers (25) are all clamped on the top of the breeding pool (1), and the middle position of the top of the two limiting beams (11) is provided with a pin groove (40), and the two positioning pins (23) are respectively inserted into the inside of the two pin grooves (40).

5. The selection device for breeding of side-striped bream according to claim 1, characterized in that: One end of the water pumping pipe (5) located inside the breeding pond (1) is threadedly connected to a threaded sleeve (6), an interception net (7) is fixedly connected to the inner wall of the threaded sleeve (6), and a filter (9) is provided in the middle of the return pipe (8).

6. The selection device for breeding of side-striped glaucus according to claim 1, characterized in that: A mounting frame (26) is fixedly connected to the top of the outer wall of the breeding pond (1) on one side close to the water pump (3), and a winch (27) is fixedly connected to the inside of the mounting frame (26).

7. The selection device for breeding of side-striped glaucus according to claim 1, characterized in that: The top of the bracket (31) close to the fixed pulley (29) is fixedly connected to a connecting rod (32), the end of the connecting rod (32) away from the bracket (31) is fixedly connected to a support rod (33), the end of the support rod (33) close to the winch (27) is fixedly connected to a first wire groove (34), the end of the support rod (33) close to the universal joint (24) is fixedly connected to a second wire groove (35), and the parts of the steel cable (28) located on both sides of the fixed pulley (29) are respectively clamped in the inside of the first wire groove (34) and the second wire groove (35).

8. The selection device for breeding of side-striped glaucus according to claim 1, characterized in that: The inner wall of the bottom of the breeding pool (1) is fixedly connected to two limit slots (12) adapted to the isolation plate (10), and the bottom plates of the two isolation plates (10) are respectively inserted into the inside of the two limit slots (12).

9. The selection device for breeding of side-striped bream according to claim 1, characterized in that: Two roller grooves (39) are fixedly connected to the inner wall of the breeding pool (1) on the side away from the transparent window (2), and the interiors of the two roller grooves (39) are rotatably connected to equidistantly distributed support rollers (15), and the side surfaces of the two isolation plates (10) close to the water pump (3) are respectively attached to the outer walls of the support rollers (15) inside the two roller grooves (39).

10. The selection device for breeding of Glossy Lipfish according to claim 9, characterized in that: The inner wall of the breeding pool (1) away from the transparent window (2) is fixedly connected to two guide rails (16), and the two guide rails (16) are respectively located on the side of the two isolation plates (10) away from the water pump (3). The interiors of the two guide rails (16) are slidably connected to sliders (17), and the sides of the two sliders (17) close to the water pump (3) are fixedly connected to push rods (19). The ends of the two push rods (19) close to the water pump (3) are fixedly connected to pressure plates (20), and the two pressure plates (20) are respectively attached to the two isolation plates (1 0), the sides of the two pressing plates (20) that are attached to the isolation plate (10) are both set as attaching surfaces, the sides of the two sliders (17) away from the water pump (3) are fixedly connected with springs (18), the two springs (18) are respectively fixedly connected to the inner walls of the two guide rails (16) away from the water pump (3), the top of the attaching surface of the pressing plate (20) is set as a guide arc surface (36), the middle of the attaching surface of the pressing plate (20) is fixedly connected with a cleaning brush (37), and the bottom of the attaching surface of the pressing plate (20) is rotatably connected with a limiting roller (38).

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