Mandarin fish screening and breeding device

Abstract

The invention belongs to the technical field of screening and breeding devices, and particularly relates to a mandarin fish screening and breeding device which comprises a breeding box and a screening mechanism connected to the upper portion in the breeding box, the screening mechanism comprises two supporting frames and a screening frame, and the two supporting frames are fixedly connected to the front side and the rear side of the inner wall of the breeding box respectively; the tops of the two supporting frames are in threaded connection with fixing screw rods correspondingly, the bottoms of the fixing screw rods are movably connected with fixing inserting plates used for fixing the screening frame, and the fixing inserting plates are driven by the fixing screw rods to vertically move. The two sides of the screening frame are fixedly connected with installation sliding plates used for being in sliding connection with the supporting frame, so that the screening frame can be directly pulled out or inserted into the breeding box. According to the fry screening device, through the screening mechanism, fry are screened through the screening frame, appropriate fry are directly screened out in the mode of pulling the screening frame, and the problem that the screening time is long through colored ribbons is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of screening and breeding devices, and specifically relates to a mandarin fish screening and breeding device. Background Art

[0002] Mandarin fish are distributed in China, North Korea, South Korea, and Russia. They inhabit fresh, still or slow-flowing waters, preferring clean, well-transparent environments with slightly flowing water. They are carnivorous and fierce, feeding on live fish and shrimp. They are good at hiding, often hiding in secluded places such as the roots of aquatic plants, using the patches on their bodies to deceive other fish. They take shelter from the heat in shaded areas in summer, dive into deep waters for wintering, and swim to shallow waters to forage after the spring warms up. They are solitary and do not like to group, preferring to act alone. However, when the water temperature is low in winter and spring, they gather and burrow at the bottom of the water.

[0003] In the prior art, a fry breeding and screening device for mandarin fish with the publication number CN119422996A can not only improve the activity of mandarin fish fry through components such as colored ribbons and hinged plates, but also distinguish and separate fry of different specifications according to the habits of mandarin fish fry, avoiding situations such as food grabbing and cannibalism due to differences in fry specifications, and improving the breeding survival rate of the fry breeding and screening device for mandarin fish. However, there are still the following problems:

[0004] When the above-mentioned breeding device screens fry, it uses colored ribbons to let the fry swim into another box automatically, resulting in a long screening time. In addition, it uses an air pump and a nozzle to oxygenate the water, but when oxygenating, the oxygen coverage is slow and it takes a long time for the oxygen to dissolve in the water.

[0005] Therefore, a mandarin fish screening and breeding device is proposed to solve the above problems. Summary of the Invention

[0006] (1) Technical Problems to be Solved

[0007] Aiming at the deficiencies of the prior art, a mandarin fish screening and breeding device is proposed to solve the problems of long screening time using colored ribbons and low oxygen dissolution efficiency in water.

[0008] (2) Technical Solutions

[0009] To achieve the above object, the present invention provides the following technical solution: A mandarin fish screening and breeding device includes a breeding box and a screening mechanism connected above the inner part of the breeding box. The screening mechanism includes two support frames and a screening frame. The two support frames are respectively fixedly connected to the front and rear sides of the inner wall of the breeding box. The tops of the two support frames are respectively threadedly connected with fixing screws. The bottom of the fixing screw is movably connected with a fixing plug board for fixing the screening frame. The fixing plug board moves vertically under the drive of the fixing screw.

[0010] Both sides of the screening rack are fixedly connected with mounting slide plates for sliding connection with the support rack, enabling the screening rack to be directly withdrawn or inserted into the breeding box. Fixed slots adapted to the fixed insertion plates are provided at the tops of the two mounting slide plates.

[0011] Adopting the above technical solution: The screening rack is used to complete the screening of mandarin fish fry.

[0012] Preferably, an installation mechanism is connected to the back of the breeding box. The installation mechanism includes an installation base. A bidirectional lead screw is movably connected inside the installation base. A first motor is fixedly connected to the front of the installation base. The output end of the first motor is fixedly connected to the bidirectional lead screw, enabling the first motor to drive the bidirectional lead screw to rotate. Threaded sliders are connected to both sides of the outer wall of the bidirectional lead screw. Installation clamping plates are fixedly connected to the tops of the threaded sliders.

[0013] Adopting the above technical solution: The first motor is used to control the installation clamping plates to disassemble and assemble the oxygenator.

[0014] Preferably, an oxygen supply mechanism is connected to the top of the installation mechanism. The oxygen supply mechanism includes an oxygenator. One ends of air pipes for oxygen transmission are connected to both sides of the top of the oxygenator. The other ends of the two air pipes are connected to oxygen transmission plates. The two oxygen transmission plates are respectively fixedly connected to the inner walls on both sides of the breeding box. A number of oxygen transmission ports are provided on the opposite sides of the two oxygen transmission plates.

[0015] Adopting the above technical solution: The oxygen transmission plates are used to increase the oxygen transmission area inside the box.

[0016] Preferably, stirring mechanisms are connected to both sides below the breeding box. The stirring mechanisms include fixed frames and filter baffles. Filter baffles are arranged on the opposite sides of the two fixed frames. The filter baffles are fixedly connected to the support rack. A fixed shaft is fixedly connected to the left side of the fixed frame. A second motor is fixedly connected to the top of the left side of the fixed frame. The output end of the second motor is fixedly connected to the fixed shaft, enabling the second motor to control the rotation of the fixed shaft;

[0017] A number of first bevel gears are fixedly connected to the outer wall of the fixed shaft. A second bevel gear is meshed and connected to the right sides of the number of first bevel gears. A driving shaft is fixedly connected to the right side of the second bevel gear. A number of stirring blades are fixedly connected to the outer wall of the driving shaft.

[0018] Adopting the above technical solution: The second motor is used to control the stirring blades to achieve water circulation inside the box and accelerate the diffusion speed of oxygen or disinfectant in water.

[0019] Preferably, a sewage discharge mechanism is connected to the bottom of the breeding box. The sewage discharge mechanism includes two hydraulic oil rods, both of which are fixedly connected to the front and rear sides of the inner wall of the installation base. The extending ends of the two hydraulic oil rods both pass through the right arm of the breeding box and are fixedly connected to a push plate. By controlling the movement of the push plate, a plurality of guide rods are slidably connected to the bottom of the push plate. The tops of the plurality of guide rods are all connected with support springs. The guide rods are elastically connected to the push plate through the support springs. The bottoms of the plurality of guide rods are commonly fixedly connected to a scraper, and the bottom of the scraper is inclined.

[0020] The bottom surface of the breeding box is adapted to the inclined surface at the bottom of the scraper. A sewage discharge port is opened below the right side wall of the breeding box. A sealing baffle that fits it is arranged in front of the sewage discharge port, and the sealing baffle is movably pinned to the breeding box.

[0021] By adopting the above technical solution, the scraper is used to scrape and clean the dirt deposited on the inner bottom surface of the box.

[0022] Preferably, a driving mechanism is connected above the left side wall of the breeding box. The driving mechanism includes a fixed box. A first sprocket is movably connected to the rear of the top of the fixed box. A transmission chain is externally meshed with the first sprocket. A second sprocket is meshed with the front of the inside of the transmission chain. The first sprocket is chain-driven with the second sprocket through the transmission chain. A third motor is fixedly connected to the top of the fixed box. The output end of the third motor is fixedly connected to the first sprocket through a shaft, so that the third motor controls the rotation of the first sprocket.

[0023] By adopting the above technical solution, the third motor can control the rotation of the two sprockets.

[0024] Preferably, a feeding mechanism is arranged on the left side of the fixed box. The feeding mechanism includes a feeding bin. A feeding port is opened at the top of the feeding bin. A first rotating shaft is movably connected to the inside of the feeding bin. The top of the first rotating shaft is fixedly connected to the first sprocket. A rotating disk is fixedly connected to the bottom of the outside of the first rotating shaft. The rotating disk is adapted to the bottom surface of the feeding bin. A circular feeding port is opened on the inner wall of the rotating disk. A plurality of feeding holes are opened on the left side of the bottom of the feeding bin, and the plurality of feeding holes are arranged in a ring.

[0025] By adopting the above technical solution, automatic feeding is realized through the feeding mechanism.

[0026] Preferably, a disinfection mechanism is provided on the right side of the fixed box. The disinfection mechanism includes a disinfection chamber. A liquid inlet is formed at the top of the disinfection chamber. A second rotating shaft is movably connected inside the disinfection chamber. The top of the second rotating shaft is fixedly connected to a second sprocket. A plurality of stirring arms are fixedly connected to the outer wall of the second rotating shaft. A liquid discharge port is formed at the bottom of the disinfection chamber. A filter screen for filtering is fixedly connected to the inner wall of the liquid discharge port. A sealing plug is threadedly connected to the bottom of the liquid discharge port.

[0027] By adopting the above technical solution: when the disinfection mechanism disinfects the inside of the box, the disinfectant liquid and water are fully mixed in proportion.

[0028] (III) Beneficial effects

[0029] Compared with the prior art, the present invention provides a novel pillow, which has the following beneficial effects:

[0030] 1. Through the screening mechanism of the present invention, the fry are screened by using the screening rack, and the appropriate fry are directly screened out by pulling the screening rack, solving the problem of long screening time using colored ribbons.

[0031] 2. Through the stirring mechanism of the present invention, the second motor is used to control the rotation of the stirring blades, realizing the circulating flow of the water in the box. Through the oxygen supply mechanism, the oxygen is input by using the oxygen delivery plate, realizing the large-coverage oxygen supply to the water in the box, and solving the problem of low oxygen dissolution efficiency in water.

[0032] 3. Through the sewage discharge mechanism of the present invention, the hydraulic oil rod is used to control the movement of the scraper, realizing the scraping of the sediment and dirt at the bottom of the box, and solving the problem of troublesome manual cleaning of the bottom surface of the box.

[0033] 4. Through the driving mechanism of the present invention, the third motor is used to control the rotation of the two sprockets. Through the feeding mechanism and the disinfection mechanism, the rotating disc and the stirring arms are controlled to rotate through the first rotating shaft and the second rotating shaft respectively, realizing automatic feeding and mixing of the disinfectant liquid, and solving the problem of high labor cost for manually feeding the fry and manually adjusting the disinfectant evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0035] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0036] Figure 2 is a three-dimensional structural schematic diagram inside the present invention;

[0037] Figure 3It is a three-dimensional structural schematic diagram of the interior after the screening rack of the present invention is disassembled;

[0038] Figure 4 It is a three-dimensional structural schematic diagram of the interior after the stirring mechanism of the present invention is disassembled;

[0039] Figure 5 It is a three-dimensional structural schematic diagram of the stirring mechanism of the present invention;

[0040] Figure 6 It is a three-dimensional structural schematic diagram of the mounting base of the present invention;

[0041] Figure 7 It is the present invention Figure 6 Partial enlarged structural schematic diagram at position A in;

[0042] Figure 8 It is the present invention Figure 6 Partial enlarged structural schematic diagram at position B in;

[0043] Figure 9 It is the present invention Figure 3 Partial enlarged structural schematic diagram at position C in.

[0044] In the figure: 1. Breeding box; 2. Screening mechanism; 201. Support frame; 202. Fixed screw; 203. Fixed insertion plate; 204. Screening rack; 205. Installation slide plate; 206. Fixed slot; 3. Installation mechanism; 301. Installation base; 302. Bidirectional lead screw; 303. First motor; 304. Lead screw slider; 305. Installation clamping plate; 4. Oxygen supply mechanism; 401. Oxygenator; 402. Air pipe; 403. Oxygen delivery plate; 404. Oxygen delivery port; 5. Stirring mechanism; 501. Fixed frame; 502. Fixed shaft; 503. Second motor; 504. First bevel gear; 505. Second bevel gear; 506. Drive shaft; 507. Stirring blade; 508. Filter baffle; 6. Sewage discharge mechanism; 601. Hydraulic oil rod; 602. Push plate; 603. Guide rod 604; 604. Support spring; 605. Scraper; 606. Sewage discharge port; 607. Sealing baffle; 7. Drive mechanism; 701. Fixed box; 702. First sprocket; 703. Transmission chain; 704. Second sprocket; 705. Third motor; 8. Feeding mechanism; 801. Feeding bin; 802. Feed inlet; 803. First rotating shaft; 804. Rotary disk; 805. Feeding hole; 9. Disinfection mechanism; 901. Disinfection bin; 902. Liquid inlet; 903. Second rotating shaft; 904. Stirring arm; 905. Filter net; 906. Sealing plug. Detailed implementation manners

[0045] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0046] Specific embodiments are given below.

[0047] Please refer to Figures 1 - 9 , the present invention provides a mandarin fish screening and breeding device, which includes a breeding tank 1 and a screening mechanism 2 connected above the inner part of the breeding tank 1. The back of the breeding tank 1 is connected with a mounting mechanism 3, the top of the mounting mechanism 3 is connected with an oxygen supply mechanism 4, both sides of the lower part inside the breeding tank 1 are connected with a stirring mechanism 5, the bottom of the breeding tank 1 is connected with a sewage discharge mechanism 6, the upper part of the left side wall of the breeding tank 1 is connected with a driving mechanism 7, a feeding mechanism 8 is arranged on the left side of the fixed box 701, and a disinfection mechanism 9 is arranged on the right side of the fixed box 701.

[0048] As Figures 1 - 4 shown, the screening mechanism 2 includes two support frames 201 and a screening frame 204. The two support frames 201 are respectively fixedly connected to the front and rear sides of the inner wall of the breeding tank 1. The tops of the two support frames 201 are respectively threadedly connected with fixing screws 202. The bottom of the fixing screw 202 is movably connected with a fixing plug board 203 for fixing the screening frame 204. The fixing plug board 203 moves vertically under the drive of the fixing screw 202; both sides of the screening frame 204 are fixedly connected with mounting sliding plates 205 for sliding connection with the support frame 201, so that the screening frame 204 can be directly pulled out or inserted into the breeding tank 1. Fixing slots 206 adapted to the fixing plug board 203 are opened at the tops of the two mounting sliding plates 205.

[0049] Through the above solution: Select a screening frame 204 with a suitable sieve aperture size. Under the action of the mounting sliding plate 205, insert it into the support frame 201. Rotate the fixing screw 202, and under the action of the thread, push the fixing plug board 203 into the fixing slot 206 to complete the fixation of the screening frame 204. Pour the fry from above the breeding tank 1, and screen through the screening frame 204. After screening, use the fixing screw 202 to control the fixing plug board 203 to leave the fixing slot 206, and take out the suitable fry with the screening frame 204 and release them into the pond. The smaller fry continue to be raised in the breeding tank 1.

[0050] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 and Figure 7As shown, the installation mechanism 3 includes an installation base 301. A bidirectional lead screw 302 is movably connected inside the installation base 301. A first motor 303 is fixedly connected to the front of the installation base 301. The output end of the first motor 303 is fixedly connected to the bidirectional lead screw 302, so that the first motor 303 drives the bidirectional lead screw 302 to rotate. Threaded sliders 304 are threadedly connected to both sides of the outer wall of the bidirectional lead screw 302. An installation clamping plate 305 is fixedly connected to the top of the threaded slider 304.

[0051] Through the above solution: Place the oxygenator 401 between the two installation clamping plates 305. Control the bidirectional lead screw 302 to rotate through the first motor 303. Under the action of the thread, the threaded sliders 304 on both sides drive the installation clamping plates 305 to clamp and fix the oxygenator 401.

[0052] As Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the oxygen supply mechanism 4 includes an oxygenator 401. One end of an air pipe 402 for oxygen delivery is connected to both sides of the top of the oxygenator 401. The other ends of the two air pipes 402 are both connected to an oxygen delivery plate 403. The two oxygen delivery plates 403 are respectively fixedly connected to the inner walls on both sides of the breeding box 1. A number of oxygen delivery ports 404 are opened on the opposite sides of the two oxygen delivery plates 403.

[0053] Through the above solution: The oxygenator 401 generates oxygen, which is input into the oxygen delivery plate 403 through the air pipe 402, and the water inside the breeding box 1 is oxygenated through a number of oxygen delivery ports 404.

[0054] As Figure 2 , Figure 3 and Figure 5 As shown, the stirring mechanism 5 includes a fixing frame 501 and a filtering baffle 508. Filtering baffles 508 are arranged on the opposite sides of the two fixing frames 501. The filtering baffle 508 is fixedly connected to the support frame 201. A fixing shaft 502 is fixedly connected to the left side of the fixing frame 501. A second motor 503 is fixedly connected to the top of the left side of the fixing frame 501. The output end of the second motor 503 is fixedly connected to the fixing shaft 502, so that the second motor 503 controls the fixing shaft 502 to rotate; A number of first bevel gears 504 are fixedly connected to the outer wall of the fixing shaft 502. A number of first bevel gears 504 are meshed and connected to a second bevel gear 505 on the right side. A driving shaft 506 is fixedly connected to the right side of the second bevel gear 505. A number of stirring blades 507 are fixedly connected to the outer wall of the driving shaft 506.

[0055] Through the above solution: the second motor 503 is used to control the rotation of the fixed shaft 502. Since the first bevel gear 504 and the second bevel gear 505 are meshed and connected, under the meshing action of the gears, the second bevel gear 505 drives the drive shaft 506 to rotate, so that a plurality of stirring blades 507 rotate together to stir the water inside the breeding box 1, accelerating the dissolution time of oxygen and disinfectant in water.

[0056] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 8 shown in the figure, the sewage discharge mechanism 6 includes two hydraulic oil rods 601. The two hydraulic oil rods 601 are fixedly connected to the front and rear sides of the inner wall of the mounting base 301. The extension ends of the two hydraulic oil rods 601 both pass through the right arm of the breeding box 1 and are fixedly connected to the push plate 602 to control the movement of the push plate 602. A plurality of guide rods 603 are slidably connected to the bottom of the push plate 602. The tops of the plurality of guide rods 603 are all connected with support springs 604. The guide rods 603 are elastically connected to the push plate 602 through the support springs 604. The bottoms of the plurality of guide rods 603 are fixedly connected together with a scraping plate 605. The bottom of the scraping plate 605 is beveled; the bottom surface of the breeding box 1 is adapted to the inclined surface at the bottom of the scraping plate 605. A sewage discharge port 606 is opened below the right side wall of the breeding box 1. A sealing baffle 607 that fits with it is arranged in front of the sewage discharge port 606. The sealing baffle 607 is movably pinned to the breeding box 1.

[0057] Through the above solution: the hydraulic oil rod 601 is used to push the push plate 602 to drive the scraping plate 605 to move horizontally. Since the guide rod 603 is elastically connected to the push plate 602 through the support spring 604, under the elastic force of the support spring 604, the scraping plate 605 always contacts the bottom surface of the breeding box 1 during the movement process to scrape off the dirt deposited at the bottom. Pulling open the sealing baffle 607 can discharge the dirt from the sewage discharge port 606.

[0058] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 9 shown in the figure, a drive mechanism 7 is connected above the left side wall of the breeding box 1. The drive mechanism 7 includes a fixed box 701. A first sprocket 702 is movably connected to the rear of the top of the fixed box 701. A drive chain 703 is externally meshed with the first sprocket 702. A second sprocket 704 is meshed with the front of the inside of the drive chain 703. The first sprocket 702 is chain-driven with the second sprocket 704 through the drive chain 703. A third motor 705 is fixedly connected to the top of the fixed box 701. The output end of the third motor 705 is fixedly connected to the first sprocket 702 through a shaft, so that the third motor 705 controls the rotation of the first sprocket 702.

[0059] Through the above solution: The third motor 705 controls the rotation of the first sprocket 702. Since the first sprocket 702 is in chain drive with the second sprocket 704 through the drive chain 703, under the action of friction, the first sprocket 702 pushes the drive chain 703 to drive the second sprocket 704 to rotate together.

[0060] Such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 9 As shown in

[0061] Through the above solution: The feed is put into the feeding bin 801 from the feed inlet 802. When feeding, the first sprocket 702 controls the rotation of the rotary disk 804 under the action of the first rotating shaft 803, so that the circular feeding port is aligned with the feeding holes 805, and the feed enters the breeding box 1 from the feeding holes 805 for feeding.

[0062] Such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 9 As shown in

[0063] Through the above solution: The disinfectant and water are poured into the disinfection bin 901 from the drain port in a certain proportion. The second sprocket 704 drives the second rotating shaft 903 to rotate, so that the stirring arms 904 rotate to fully mix the disinfectant and water. After mixing, the sealing plug 906 is opened, and the mixed disinfectant is discharged from the drain port into the breeding box 1 for disinfection treatment of the box.

[0064] Working principle:

[0065] During actual use, first, through the disinfection mechanism 9, the third motor 705 is used to control the rotation of the stirring arm 904 to fully mix the disinfectant and water, and then it enters the breeding box 1, and cooperates with the stirring mechanism 5 to disinfect the inside of the box.

[0066] Secondly, through the installation mechanism 3, the first motor 303 is used to control the installation clamp 305 to install and fix the oxygenator 401. Through the oxygen supply mechanism 4, the oxygen of the oxygenator 401 is input into the oxygen delivery plate 403 through the trachea 402, and cooperates with the stirring mechanism 5 to oxygenate the water inside the breeding box 1.

[0067] Then, through the screening mechanism 2, the screening rack 204 is used to screen the fry. The suitable fry are drawn out along with the screening rack 204 and stocked in the pond, and the smaller fry continue to be raised in the breeding box 1.

[0068] Next, through the feeding mechanism 8, the first rotating shaft 803 is used to control the rotation of the rotating disk 804 to align the circular feeding port with the feeding hole 805, and feed the fry in the box.

[0069] Finally, when cleaning the inside of the box, through the sewage discharge mechanism 6, the hydraulic oil rod 601 is used to control the scraper 605 to scrape the dirt at the bottom of the box, and the dirt can be discharged from the sewage outlet 606 by pulling open the sealing baffle 607.

[0070] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A mandarin fish screening and breeding device, comprising a breeding tank (1) and a screening mechanism (2) connected above the interior of the breeding tank (1), characterized in that, The screening mechanism (2) includes two support frames (201) and a screening frame (204). The two support frames (201) are respectively fixedly connected to the front and rear sides of the inner wall of the breeding box (1). The tops of the two support frames (201) are respectively threadedly connected with fixing screws (202). The bottom of the fixing screw (202) is movably connected with a fixing plug board (203) for fixing the screening frame (204). The fixing plug board (203) moves vertically under the drive of the fixing screw (202). Both sides of the screening frame (204) are fixedly connected with mounting sliding plates (205) for slidably connecting with the support frame (201), so that the screening frame (204) can be directly pulled out or inserted into the breeding box (1). Fixing slots (206) adapted to the fixing plug board (203) are opened at the tops of the two mounting sliding plates (205).

2. The screening and breeding device for mandarin fish according to claim 1, wherein, The back of the breeding box (1) is connected with a mounting mechanism (3). The mounting mechanism (3) includes a mounting base (301). A bidirectional lead screw (302) is movably connected inside the mounting base (301). A first motor (303) is fixedly connected to the front of the mounting base (301). The output end of the first motor (303) is fixedly connected to the bidirectional lead screw (302), so that the first motor (303) drives the bidirectional lead screw (302) to rotate. Screw sliders (304) are respectively threadedly connected to both sides of the outer wall of the bidirectional lead screw (302). The tops of the screw sliders (304) are fixedly connected with mounting clamping plates (305).

3. The screening and breeding device for mandarin fish according to claim 2, characterized in that, An oxygen supply mechanism (4) is connected to the top of the mounting mechanism (3). The oxygen supply mechanism (4) includes an oxygenator (401). One ends of air pipes (402) for oxygen delivery are respectively connected to both sides of the top of the oxygenator (401). The other ends of the two air pipes (402) are both connected with oxygen delivery plates (403). The two oxygen delivery plates (403) are respectively fixedly connected to the inner walls on both sides of the breeding box (1). A number of oxygen delivery ports (404) are opened on the opposite sides of the two oxygen delivery plates (403).

4. The screening and breeding device for mandarin fish according to claim 1, characterized in that Agitating mechanisms (5) are respectively connected to both sides below the breeding box (1). The agitating mechanism (5) includes a fixing frame (501) and a filtering baffle (508). Filtering baffles (508) are arranged on the opposite sides of the two fixing frames (501). The filtering baffle (508) is fixedly connected to the support frame (201). A fixing shaft (502) is fixedly connected to the left side of the fixing frame (501). A second motor (503) is fixedly connected to the top of the left side of the fixing frame (501). The output end of the second motor (503) is fixedly connected to the fixing shaft (502), so that the second motor (503) controls the rotation of the fixing shaft (502). A plurality of first bevel gears (504) are fixedly connected to the outer wall of the fixed shaft (502). A second bevel gear (505) is meshed and connected to the right side of the plurality of first bevel gears (504). A drive shaft (506) is fixedly connected to the right side of the second bevel gear (505). A plurality of stirring blades (507) are fixedly connected to the outer wall of the drive shaft (506).

5. The screening and breeding device for mandarin fish according to claim 1, wherein A sewage discharge mechanism (6) is connected to the bottom of the breeding box (1). The sewage discharge mechanism (6) includes two hydraulic oil rods (601). Both of the two hydraulic oil rods (601) are fixedly connected to the front and rear sides of the inner wall of the mounting base (301). The extending ends of the two hydraulic oil rods (601) both pass through the right arm of the breeding box (1) and are fixedly connected to a push plate (602) to control the movement of the push plate (602). A plurality of guide rods (603) are slidably connected to the bottom of the push plate (602). A support spring (604) is connected to the top of each of the plurality of guide rods (603). The guide rods (603) are elastically connected to the push plate (602) through the support springs (604). A scraping plate (605) is fixedly connected to the bottom of the plurality of guide rods (603) together. The bottom of the scraping plate (605) is beveled; The bottom surface of the breeding box (1) is adapted to the beveled surface at the bottom of the scraping plate (605). A sewage discharge port (606) is formed in the lower part of the right side wall of the breeding box (1). A sealing baffle (607) which is fitted to the sewage discharge port (606) is arranged in front of the sewage discharge port (606). The sealing baffle (607) is movably pinned to the breeding box (1).

6. The screening and breeding device for mandarin fish according to claim 1, characterized in that, A drive mechanism (7) is connected to the upper part of the left side wall of the breeding box (1). The drive mechanism (7) includes a fixed box (701). A first sprocket (702) is movably connected to the rear of the top of the fixed box (701). A drive chain (703) is meshed and connected to the outside of the first sprocket (702). A second sprocket (704) is meshed and connected to the front of the inside of the drive chain (703). The first sprocket (702) is chain-driven with the second sprocket (704) through the drive chain (703). A third motor (705) is fixedly connected to the top of the fixed box (701). The output end of the third motor (705) is fixedly connected to the first sprocket (702) through a shaft, so that the third motor (705) controls the rotation of the first sprocket (702).

7. The screening and breeding device for mandarin fish according to claim 6, characterized in that, A feeding mechanism (8) is arranged on the left side of the fixed box (701). The feeding mechanism (8) includes a feeding bin (801). An inlet opening (802) is formed at the top of the feeding bin (801). A first rotating shaft (803) is movably connected inside the feeding bin (801). The top of the first rotating shaft (803) is fixedly connected to a first sprocket (702). A rotating disk (804) is fixedly connected to the bottom of the outer part of the first rotating shaft (803). The rotating disk (804) is adapted to the bottom surface of the feeding bin (801). A circular blanking opening is formed in the inner wall of the rotating disk (804). A plurality of feeding holes (805) are formed on the left side of the bottom of the feeding bin (801). The plurality of feeding holes (805) are arranged in a circular pattern.

8. The screening and breeding device for mandarin fish according to claim 6, wherein, A disinfection mechanism (9) is arranged on the right side of the fixed box (701). The disinfection mechanism (9) includes a disinfection bin (901). A liquid inlet (902) is formed at the top of the disinfection bin (901). A second rotating shaft (903) is movably connected inside the disinfection bin (901). The top of the second rotating shaft (903) is fixedly connected to a second sprocket (704). A plurality of stirring arms (904) are fixedly connected to the outer wall of the second rotating shaft (903). A drain opening is formed at the bottom of the disinfection bin (901). A filter screen (905) for filtering is fixedly connected to the inner wall of the drain opening. A sealing plug (906) is threadedly connected to the bottom of the drain opening.

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