Fry rearing device and rearing method thereof

Abstract

The invention belongs to the technical field of fry rearing, and particularly discloses a fry rearing device and a rearing method.The fry rearing device comprises an outer cylinder, a water passing pipe is arranged at the top of the outer cylinder, a faucet is arranged at the bottom of the outer side face of the circumference of the water passing pipe, the water passing pipe drains water to the inner side of the outer cylinder through the faucet, and a partition plate is arranged on the inner side of the outer cylinder; a bottom plate is fixed to the bottom of the outer cylinder through multiple supporting rods, a motor is installed on the top face of the bottom plate, the output end of the motor is in transmission connection with a rotating rod, the rotating rod is vertically inserted into the inner side of the outer cylinder, and the top end of the rotating rod penetrates through the center of the partition plate. Garbage on the top face of the partition plate and the inner side wall of the outer barrel is cleaned through cooperation of the anticlockwise rotating semicircular plate and the side plate, garbage residues are avoided, the cleaning effect of the inner side wall of the outer barrel and the top face of the partition plate is guaranteed, water discharged from the faucet to the inner side of the outer barrel brings the garbage into the inner side of the filter frame, and rapid cleaning of the outer barrel is completed.

Description

Technical Field

[0001] The invention belongs to the technical field of fish fry cultivation, and in particular relates to a fish fry cultivation device and a cultivation method thereof. Background Art

[0002] Fish fry cultivation refers to the process of cultivating fish fry into edible fish fingerlings or fish fingerlings for release, covering a series of steps from the selection of broodstock, successful conception, hatching to the growth of fish fry and environmental management.

[0003] In the traditional fish fry cultivation process, a large amount of residue and leftover bait are easily generated during the cultivation of the fish fry in the cultivation barrel. The garbage is easily adsorbed on the inner wall of the cultivation barrel, and it is troublesome to clean up the residue and leftover bait.

[0004] Therefore, it is necessary to invent a fry cultivation device and a cultivation method thereof to solve the above problems. Summary of the invention

[0005] In view of the above problems, the present invention provides a fry cultivation device and a cultivation method thereof to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fry breeding device comprises an outer cylinder, a water pipe is arranged on the top of the outer cylinder, a faucet is arranged on the bottom of the outer side surface of the water pipe, the water pipe discharges water to the inner side of the outer cylinder through the faucet, a partition is arranged on the inner side of the outer cylinder, a bottom plate is fixed to the bottom of the outer cylinder by multiple support rods, a motor is installed on the top surface of the bottom plate, a rotating rod is connected to the output end of the motor for transmission, the rotating rod is vertically inserted into the inner side of the outer cylinder, and the top end of the rotating rod passes through the center of the partition, a cleaning component is connected to the top end of the rotating rod, the cleaning component comprises two opposite side plates, the outer side surfaces of the side plates are in contact with the inner wall of the outer cylinder, the rotating rotating rod cooperates with the two side plates of the cleaning component to clean the garbage on the inner wall of the outer cylinder, the top surface of the partition is provided with two opposite through grooves, the cleaning component corresponds to the through grooves on the top surface of the partition, and a drain pipe is arranged on the bottom of the outer side surface of the outer cylinder.

[0007] Furthermore, the top surface of the outer cylinder is provided with two parallel arc-shaped clamping strips, the arc-shaped clamping strips are supported by rubber material, and the water pipe is correspondingly clamped on the top of the outer cylinder by the two arc-shaped clamping strips.

[0008] Furthermore, the cleaning component includes two opposite semicircular plates, which correspond to the two side plates one by one. The outer ends of the semicircular plates are connected to the bottom ends of the side plates, and the semicircular plates correspond to the through grooves on the surface of the blocking partition. The two opposite semicircular plates are fixedly connected by a sleeve frame, and the sleeve frame is sleeved on the top of the rotating rod. The rotating rotating rod uses the sleeve frame to drive the semicircular plates and the side plates to rotate.

[0009] Furthermore, a vertical groove is provided at the top of the rotating rod, an inner rod is provided on the inner side of the vertical groove, the top of the inner rod passes through the top of the rotating rod, and the top of the inner rod is connected to the inner top surface of the sleeve frame, a cross bar is provided at the bottom of the inner side of the vertical groove, both ends of the cross bar are connected to the inner wall of the sleeve frame, an elastic bar is provided on the inner side of the vertical groove, the top of the elastic bar is connected to the inner top of the vertical groove, and the bottom of the elastic bar is connected to the surface of the cross bar, and the elastic force of the elastic bar makes the bottom surface of the sleeve frame fit with the top surface of the partition.

[0010] Furthermore, a filter frame is clamped on the inner side of the through groove, a protrusion is provided on the top of the outer side surface of the filter frame, a slot corresponding to the protrusion is provided on the top surface of the partition plate, the top surface of the filter frame is flush with the top surface of the partition plate, the semicircular plate is pressed at the top opening of the filter frame, two wedges are fixed on the top surface of the partition plate, the two wedges correspond to the two through grooves one by one, after the vertical side surface of the wedge block is fitted with the side surface of the semicircular plate, the semicircular plate blocks the through groove correspondingly, and the top surface of the wedge block is provided with an inclined surface.

[0011] Furthermore, an inner cylinder is inserted at the center of the filter frame, the top and bottom of the inner cylinder are sealed, the bottom end of the inner cylinder passes through the center of the bottom surface of the filter frame, a top opening is provided at the top of the outer side surface of the inner cylinder circumference, a bottom opening is provided at the bottom of the outer side surface of the inner cylinder circumference, the top opening is connected with the bottom opening by the inner cylinder, a side is provided on the top surface of the inner cylinder, a spring is sleeved on the surface of the inner cylinder, the top end of the spring is connected to the bottom surface of the side, and the bottom end of the spring is fitted with the inner bottom surface of the filter frame by a ring.

[0012] Furthermore, two opposite rotating plates are fixed on the outer circumferential side of the rotating rod, and the bottom end of the inner cylinder corresponds to the outer end of the rotating plate.

[0013] The present invention also provides a method for cultivating fry, which uses the above-mentioned fry cultivation device and comprises the following steps:

[0014] S1, plugging the drain pipe, at this time, the two semicircular plates correspond to plugging the two through grooves, the semicircular plates cooperate with the wedge block to make the partition separate the upper and lower spaces of the outer cylinder, turn on the faucet, the water inside the water pipe flows into the inner side of the outer cylinder through the faucet, put the fry to be cultivated into the inner side of the outer cylinder through the top opening of the outer cylinder, and add the nutrients required for cultivation into the inner side of the outer cylinder;

[0015] S2, after the fry is cultivated, the motor is started, the rotating rod at the output end of the motor rotates counterclockwise, the rotating rod rotating counterclockwise uses the horizontal rod inside the vertical groove to drive the sleeve frame to rotate synchronously, the sleeve frame drives the semicircular plate to rotate, the rotating semicircular plate makes the top of the through groove open, at this time the semicircular plate cooperates to squeeze the inner cylinder, the water on the top of the partition passes through the filter frame inside the through groove to the bottom of the outer cylinder, the filter frame collects garbage in the water, and the fry enters the inside of the filter frame;

[0016] S3, water gradually gathers at the bottom of the inner side of the outer cylinder until the liquid level of the water corresponds to the bottom of the partition, the motor output end makes the rotating rod rotate clockwise, and the rotating rod rotating in the opposite direction drives the semicircular plate to rotate clockwise using the sleeve frame until the semicircular plate blocks the through groove, and the fry inside the filter frame enters the bottom of the partition through the top opening, the inner cylinder and the bottom opening. The drain pipe is opened, and the water at the bottom of the outer cylinder and the cultivated fry are discharged from the outer cylinder;

[0017] S4. After the water at the bottom of the partition is completely discharged, the motor output end causes the rotating rod to drive the sleeve frame to rotate counterclockwise, and the faucet discharges water to the inner side of the outer cylinder. The counterclockwise rotating sleeve frame uses the semicircular plate to drive the side plate to rotate counterclockwise synchronously. After the bottom surface of the semicircular plate is separated from the top of the inner cylinder, the elastic force of the spring causes the inner cylinder to move up on the inner side of the filter frame. The upward moving inner cylinder drives the bottom port to move up, and the bottom end of the bottom port enters the inner side of the filter frame. The rotating semicircular plate and the side plate cooperate to scrape the garbage on the top surface of the partition and the inner wall of the outer cylinder. The water brings the garbage into the inner side of the filter frame, completing the rapid cleaning of the outer cylinder.

[0018] Technical effects and advantages of the present invention:

[0019] 1. The present invention uses the semicircular plate and the side plate that rotate counterclockwise to cooperate to clean the garbage on the top surface of the partition and the inner wall of the outer cylinder, thereby avoiding garbage residue and ensuring the cleaning effect of the inner wall of the outer cylinder and the top surface of the partition. The water discharged from the faucet to the inside of the outer cylinder brings the garbage into the inside of the filter frame, completing the rapid cleaning of the outer cylinder.

[0020] 2. The present invention collects garbage in the water through a filter frame. When the rotating rod drives the cleaning component to rotate counterclockwise, the counterclockwise rotating cleaning component uses the side plate to scrape the garbage on the inner wall of the outer cylinder, and the semicircular plate of the cleaning component scrapes the garbage on the top surface of the partition. The water discharged from the faucet brings the garbage into the inside of the filter frame, and the inner cylinder prevents the garbage from directly entering the bottom of the partition, so that the garbage can be quickly collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an overall schematic diagram of a fry cultivation device according to an embodiment of the present invention;

[0022] Figure 2 is a three-dimensional schematic diagram of a cross-section of an outer cylinder of an embodiment of the present invention;

[0023] Figure 3 Schematic diagram of the sleeve frame at the top end of the rotating rod according to an embodiment of the present invention;

[0024] Figure 4 Schematic diagram of a sleeve frame according to an embodiment of the present invention connecting side panels with semicircular panels;

[0025] Figure 5 is a schematic diagram of the internal components of the filter frame according to an embodiment of the present invention;

[0026] In the figure: 1, outer cylinder; 101, drainage pipe; 2, water pipe; 3, faucet; 4, partition; 5, bottom plate; 6, motor; 7, rotating rod; 8, side plate; 9, arc-shaped clamping strip; 10, semicircular plate; 11, sleeve frame; 12, inner rod; 13, cross bar; 14, spring bar; 15, filter frame; 16, protrusion; 17, wedge block; 18, inner cylinder; 19, top opening; 20, bottom opening; 21, spring; 22, rotating plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0028] The present invention provides a fry cultivation device, such as Figure 1 and Figure 2 As shown, it includes an outer cylinder 1, a water pipe 2 is arranged on the top of the outer cylinder 1, a faucet 3 is arranged at the bottom of the outer side surface of the water pipe 2, the water pipe 2 discharges water to the inner side of the outer cylinder 1 through the faucet 3, a partition 4 is arranged on the inner side of the outer cylinder 1, a bottom plate 5 is fixed to the bottom of the outer cylinder 1 by multiple support rods, a motor 6 is installed on the top surface of the bottom plate 5, a rotating rod 7 is connected to the output end of the motor 6, the rotating rod 7 is vertically inserted into the inner side of the outer cylinder 1, and the top of the rotating rod 7 passes through the center of the partition 4, a cleaning component is connected to the top of the rotating rod 7, the cleaning component includes two opposite side plates 8, the outer side surfaces of the side plates 8 are in contact with the inner wall of the outer cylinder 1, the rotating rotating rod 7 uses the two side plates 8 of the cleaning component to cooperate to clean the garbage on the inner wall of the outer cylinder 1, the top surface of the partition 4 is provided with two opposite through grooves, the cleaning component corresponds to the through grooves blocking the top surface of the partition 4, and a drain pipe 101 is arranged at the bottom of the outer side surface of the circumference of the outer cylinder 1. The faucet 3 is turned on, and the water inside the water pipe 2 is passed into the inner side of the outer cylinder 1 through the faucet 3. The cleaning component blocks the through groove on the surface of the partition 4, and the water is gathered inside the outer cylinder 1. The fry to be cultivated is put into the inner side of the outer cylinder 1 through the top opening of the outer cylinder 1, and the nutrients required for cultivation are added to the inner side of the outer cylinder 1. The fry are cultivated in the outer cylinder 1 until the fry are cultivated on the top of the partition 4. The motor 6 works, and the output end of the motor 6 drives the cleaning component to rotate counterclockwise using the rotating rod 7. At this time, the top of the through groove is opened, and the water and the fry are passed into the bottom of the partition 4. The drain pipe 101 is opened, and the fry cultivated inside the outer cylinder 1 is discharged through the drain pipe 101, and the cultivation of the fry is completed.

[0029] exist Figure 1 and Figure 2In the embodiment, the top surface of the outer tube 1 is provided with two parallel arc-shaped clips 9, which are supported by rubber material, and the water pipe 2 is correspondingly clipped on the top of the outer tube 1 by the two arc-shaped clips 9. Pull open the two ends of the arc-shaped clips 9, place the water pipe 2 correspondingly in the inner recesses of the two arc-shaped clips 9, loosen the two ends of the arc-shaped clips 9, and the arc-shaped clips 9 made of rubber material gradually clip on the surface of the water pipe 2, completing the restriction of the water pipe 2, so that the output end of the faucet 3 on the surface of the water pipe 2 corresponds to the top opening of the outer tube 1, so that the water inside the water pipe 2 is conveniently discharged directly to the inside of the outer tube 1 through the faucet 3.

[0030] exist Figure 1 and Figure 4 In the embodiment, the cleaning component comprises two opposite semicircular plates 10, the two semicircular plates 10 correspond to the two side plates 8 one by one, the outer ends of the semicircular plates 10 are connected to the bottom ends of the side plates 8, and the semicircular plates 10 correspond to the through grooves on the surface of the partition plate 4, and the two opposite semicircular plates 10 are fixedly connected by a sleeve frame 11, and the sleeve frame 11 is sleeved on the top of the rotating rod 7, and the rotating rotating rod 7 drives the semicircular plates 10 and the side plates 8 to rotate by the sleeve frame 11. When the rotating rod 7 rotates, the rotating rotating rod 7 drives the two semicircular plates 10 to rotate synchronously by the sleeve frame 11, and the semicircular plates 10 drive the side plates 8 to rotate synchronously, and the rotation of the semicircular plates 10 and the side plates 8 facilitates the cleaning of the garbage on the top surface of the partition plate 4 and the inner side wall of the outer cylinder 1, and prevents the garbage from adhering to the inner side wall of the outer cylinder 1 and the top surface of the partition plate 4, so as to ensure the cleaning effect of the inner side wall of the outer cylinder 1 and the top surface of the partition plate 4.

[0031] exist Figures 1 to 4 In the embodiment, the top of the rotating rod 7 is provided with a vertical slot, and the inner rod 12 is provided inside the vertical slot. The top of the inner rod 12 passes through the top of the rotating rod 7, and the top of the inner rod 12 is connected to the inner top surface of the sleeve frame 11. The bottom of the inner side of the vertical slot is provided with a cross bar 13, and both ends of the cross bar 13 are connected to the inner side wall of the sleeve frame 11. The inner side of the vertical slot is provided with an elastic bar 14, and the top of the elastic bar 14 is connected to the inner top of the vertical slot, and the bottom of the elastic bar 14 is connected to the surface of the cross bar 13. The elastic force of the elastic bar 14 makes the bottom surface of the sleeve frame 11 fit with the top surface of the partition 4. When the rotating rod 7 rotates, the rotating rod 7 uses the cross bar 13 inside the vertical slot to drive the sleeve frame 11 to rotate synchronously, and the sleeve frame 11 uses the semicircular plate 10 to drive the side plate 8 to rotate synchronously. Due to the elastic force of the elastic bar 14, the bottom surface of the sleeve frame 11 fits with the top surface of the partition 4, and the sleeve frame 11 is used to block the gap between the rotating rod 7 and the partition 4 to prevent garbage from entering the bottom of the partition 4 through the gap.

[0032] exist Figure 2 , Figure 4 and Figure 5In the embodiment, a filter frame 15 is clamped on the inner side of the through groove, a protrusion 16 is provided on the top of the outer side of the filter frame 15, a clamping groove corresponding to the protrusion 16 is provided on the top surface of the partition 4, the top surface of the filter frame 15 is flush with the top surface of the partition 4, the semicircular plate 10 is pressed at the top opening of the filter frame 15, two wedges 17 are fixed on the top surface of the partition 4, the two wedges 17 correspond to the two through grooves 10 one by one, after the vertical side surface of the wedge 17 is fitted with the side surface of the semicircular plate 10, the semicircular plate 10 blocks the through groove correspondingly, and the top surface of the wedge 17 is provided with an inclined surface. After the fry is cultivated, the motor 6 is started, and the rotating rod 7 at the output end of the motor 6 rotates counterclockwise. The rotating rod 7 rotates counterclockwise and drives the sleeve frame 11 to rotate synchronously by using the horizontal rod 13 inside the vertical groove. The sleeve frame 11 drives the semicircular plate 10 to rotate. The rotating semicircular plate 10 opens the top of the through groove. At this time, the semicircular plate 10 cooperates to squeeze the inner cylinder 18, and the water on the top of the partition 4 passes through the filter frame 15 inside the through groove to the bottom of the outer cylinder 1. The filter frame 15 collects garbage in the water, and the fry enters the inside of the filter frame 15, and the garbage in the water is collected by the filter frame 15. When the rotating rod 7 drives the cleaning component to rotate counterclockwise, the cleaning component rotates counterclockwise and uses the side plate 8 to scrape the garbage on the inner wall of the outer cylinder 1, and the semicircular plate 10 of the cleaning component scrapes the garbage on the top surface of the partition 4. The water discharged from the faucet 3 brings the garbage into the inside of the filter frame 15, which can quickly collect the garbage.

[0033] exist Figures 1 to 5 In the filter frame 15, an inner cylinder 18 is inserted at the center, the top and bottom of the inner cylinder 18 are blocked, the bottom of the inner cylinder 18 passes through the center of the bottom surface of the filter frame 15, a top opening 19 is provided at the top of the outer circumferential side surface of the inner cylinder 18, a bottom opening 20 is provided at the bottom of the outer circumferential side surface of the inner cylinder 18, the top opening 19 is connected with the bottom opening 20 by the inner cylinder 18, the top surface of the inner cylinder 18 is provided with a side edge, a spring 21 is sleeved on the surface of the inner cylinder 18, the top of the spring 21 is connected to the bottom surface of the side edge, and the bottom of the spring 21 is fitted with the inner bottom surface of the filter frame 15 by a collar. When the semicircular plate 10 rotating counterclockwise is separated from the top of the inner cylinder 18, the elastic force of the spring 21 causes the inner cylinder 18 to move up inside the filter frame 15, the inner cylinder 18 moving up drives the bottom opening 20 to move up, and the bottom end of the bottom opening 20 enters the inner side of the filter frame 15, preventing garbage from flowing into the bottom of the partition 4 through the inner cylinder 18. The counterclockwise rotating semicircular plate 10 cooperates with the side plate 8 to scrape the garbage on the top surface of the partition 4 and the inner wall of the outer cylinder 1 until the arc edge of the semicircular plate 10 contacts the inclined surface of the wedge block 17. The counterclockwise rotating semicircular plate 10 moves up on the inclined surface of the wedge block 17, and the upwardly moving semicircular plate 10 drives the sleeve frame 11 to move up on the top of the rotating rod 7. The upwardly moving sleeve frame 11 uses the inner rod 12 to pull the cross bar 13 to move up on the inner side of the vertical groove. The upwardly moving cross bar 13 cooperates to squeeze the elastic bar 14 on the inner side of the vertical groove. The elastic force of the elastic bar 14 makes the semicircular plate 10 move up smoothly on the inclined surface, and the semicircular plate 10 is used to clean the garbage on the inclined surface.

[0034] After the semicircular plate 10 continues to rotate counterclockwise and separates from the wedge block 17, the elastic force of the spring bar 14 causes the cross bar 13 and the inner rod 12 to drive the sleeve frame 11 to move downward, and the downwardly moving sleeve frame 11 pulls the semicircular plate 10 to move downward synchronously, and the downwardly moving semicircular plate 10 impacts the top surface of the inner cylinder 18, and the elastic force of the spring 21 is used to absorb most of the impact force between the semicircular plate 10 and the inner cylinder 18. The vibration caused by a small part of the impact force vibrates the garbage on the surface of the semicircular plate 10 and the side plate 8, until the bottom surface of the semicircular plate 10 is re-attached to the top surface of the partition 4, completing the comprehensive cleaning of the outer cylinder 1 and the top surface of the partition 4.

[0035] exist Figure 2 and Figure 5 In the embodiment, two opposite rotating plates 22 are fixed to the outer side of the rotating rod 7, and the bottom end of the inner cylinder 18 corresponds to the outer end of the rotating plate 22. When the semicircular plate 10 is separated from the top end of the inner cylinder 18, the elastic force of the spring 21 causes the inner cylinder 18 to move upward, and the bottom end of the inner cylinder 18 that moves upward moves upward at the end of the rotating plate 22. The bottom end of the rotating plate 22 is used to limit the bottom end of the inner cylinder 18, so that the inner cylinder 18 moves upward stably at the end of the rotating plate 22 and the inner side of the filter frame 15, and the inner cylinder 18 is prevented from deflecting on the inner side.

[0036] The present invention also provides a method for cultivating fry, referring to Figures 1 to 5 As shown, the method uses the above-mentioned fry cultivation device, comprising the following steps:

[0037] S1. Block the drain pipe 101. At this time, the two semicircular plates 10 block the two through grooves correspondingly. The semicircular plates 10 cooperate with the wedge block 17 to make the partition 4 separate the upper and lower spaces of the outer cylinder 1. Turn on the faucet 3. The water inside the water pipe 2 flows into the inner side of the outer cylinder 1 through the faucet 3. The fry to be cultivated is placed into the inner side of the outer cylinder 1 through the top opening of the outer cylinder 1, and the nutrients required for cultivation are added to the inner side of the outer cylinder 1.

[0038] S2. After the fry are cultivated, the motor 6 is started, and the rotating rod 7 at the output end of the motor 6 rotates counterclockwise. The rotating rod 7 rotates counterclockwise using the cross bar 13 inside the vertical groove to drive the sleeve frame 11 to rotate synchronously. The sleeve frame 11 drives the semicircular plate 10 to rotate. The rotating semicircular plate 10 opens the top of the through groove. At this time, the semicircular plate 0 cooperates to squeeze the inner cylinder 18, and the water on the top of the partition plate 4 passes through the filter frame 15 inside the through groove to the bottom of the outer cylinder 1. The filter frame 15 collects garbage in the water, and the fry enters the inner side of the filter frame 15.

[0039] S3, water gradually gathers at the bottom of the inner side of the outer cylinder 1 until the water level corresponds to the bottom of the partition 4, the output end of the motor 6 makes the rotating rod 7 rotate clockwise, and the rotating rod 7 rotating in the opposite direction drives the semicircular plate 10 to rotate clockwise using the sleeve frame 11 until the semicircular plate 10 blocks the through groove, and the fry inside the filter frame 15 enters the bottom of the partition 4 through the top opening 19, the inner cylinder 18 and the bottom opening 20. The drain pipe 101 is opened, and the water at the bottom of the outer cylinder 1 and the cultivated fry are discharged from the outer cylinder 1.

[0040] S4. After the water at the bottom of the partition 4 is completely discharged, the output end of the motor 6 causes the rotating rod 7 to drive the sleeve frame 11 to rotate counterclockwise, and the faucet 3 discharges water to the inner side of the outer cylinder 1. The counterclockwise rotating sleeve frame 11 uses the semicircular plate 10 to drive the side plate 8 to rotate counterclockwise synchronously. After the bottom surface of the semicircular plate 10 is separated from the top of the inner cylinder 18, the elastic force of the spring 21 causes the inner cylinder 18 to move up on the inner side of the filter frame 15. The upwardly moved inner cylinder 18 drives the bottom opening 20 to move up, and the bottom end of the bottom opening 20 enters the inner side of the filter frame 15. The rotating semicircular plate 10 cooperates with the side plate 8 to scrape the garbage on the top surface of the partition 4 and the inner wall of the outer cylinder 1. The water brings the garbage into the inner side of the filter frame 15, completing the rapid cleaning of the outer cylinder 1.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A fry cultivation device, comprising an outer cylinder (1), characterized in that: The outer cylinder (1) is provided with a water pipe (2) at the top, and a faucet (3) is provided at the bottom of the outer circumferential surface of the water pipe (2). The water pipe (2) discharges water to the inner side of the outer cylinder (1) through the faucet (3). A partition (4) is provided on the inner side of the outer cylinder (1). A bottom plate (5) is fixed to the bottom of the outer cylinder (1) by means of a plurality of support rods. A motor (6) is installed on the top surface of the bottom plate (5). The output end of the motor (6) is connected to a rotating rod (7) in a transmission manner. The rotating rod (7) is vertically plugged into the inner side of the outer cylinder (1), and the rotating rod (7) is The top end passes through the center of the partition (4); the top end of the rotating rod (7) is connected to a cleaning component, and the cleaning component includes two opposite side plates (8); the outer side surfaces of the side plates (8) are in contact with the inner wall of the outer tube (1); the rotating rotating rod (7) uses the two side plates (8) of the cleaning component to clean the garbage on the inner wall of the outer tube (1); the top surface of the partition (4) is provided with two opposite through grooves, and the cleaning component corresponds to the through grooves on the top surface of the partition (4); and the bottom of the outer circumferential surface of the outer tube (1) is provided with a drainage pipe (101).

2. The fry cultivation device according to claim 1, characterized in that: The top surface of the outer cylinder (1) is provided with two parallel arc-shaped clamping strips (9), the arc-shaped clamping strips (9) are supported by rubber material, and the water pipe (2) is correspondingly clamped on the top of the outer cylinder (1) by the two arc-shaped clamping strips (9).

3. The fry cultivation device according to claim 1, characterized in that: The cleaning component comprises two opposite semicircular plates (10), the two semicircular plates (10) correspond to the two side plates (8) one by one, the outer ends of the semicircular plates (10) are connected to the bottom ends of the side plates (8), and the semicircular plates (10) correspond to the through grooves on the surface of the blocking partition (4), the two opposite semicircular plates (10) are fixedly connected by a sleeve frame (11), the sleeve frame (11) is sleeved on the top end of the rotating rod (7), and the rotating rotating rod (7) drives the semicircular plates (10) and the side plates (8) to rotate by using the sleeve frame (11).

4. The fry cultivation device according to claim 3, characterized in that: The top of the rotating rod (7) is provided with a vertical groove, and an inner rod (12) is provided inside the vertical groove. The top of the inner rod (12) passes through the top of the rotating rod (7), and the top of the inner rod (12) is connected to the inner top surface of the sleeve frame (11). A cross bar (13) is provided at the bottom of the inner side of the vertical groove, and both ends of the cross bar (13) are connected to the inner wall of the sleeve frame (11). An elastic bar (14) is provided inside the vertical groove, and the top of the elastic bar (14) is connected to the top of the inner side of the vertical groove, and the bottom of the elastic bar (14) is connected to the surface of the cross bar (13). The elastic force of the elastic bar (14) makes the bottom surface of the sleeve frame (11) fit with the top surface of the partition (4).

5. The fry cultivation device according to claim 3, characterized in that: A filter frame (15) is clamped on the inner side of the through groove, a protrusion (16) is arranged on the top of the outer side surface of the filter frame (15), a clamping groove corresponding to the protrusion (16) is arranged on the top surface of the partition (4), the top surface of the filter frame (15) is flush with the top surface of the partition (4), the semicircular plate (10) is pressed on the top opening of the filter frame (15), two wedges (17) are fixed on the top surface of the partition (4), the two wedges (17) correspond to the two through grooves 10 one by one, after the vertical side surface of the wedge (17) is fitted with the side surface of the semicircular plate (10), the semicircular plate (10) blocks the through groove correspondingly, and the top surface of the wedge (17) is provided with an inclined surface.

6. The fry cultivation device according to claim 5, characterized in that: An inner cylinder (18) is inserted at the center of the filter frame (15), the top and bottom of the inner cylinder (18) are blocked, the bottom of the inner cylinder (18) passes through the center of the bottom surface of the filter frame (15), a top opening (19) is arranged at the top of the circumferential outer side surface of the inner cylinder (18), a bottom opening (20) is arranged at the bottom of the circumferential outer side surface of the inner cylinder (18), the top opening (19) is connected to the bottom opening (20) by means of the inner cylinder (18), a side edge is arranged at the top surface of the inner cylinder (18), a spring (21) is sleeved on the surface of the inner cylinder (18), the top of the spring (21) is connected to the bottom surface of the side edge, and the bottom of the spring (21) is fitted with the inner bottom surface of the filter frame (15) by means of a sleeve ring.

7. The fry cultivation device according to claim 6, characterized in that: Two opposite rotating plates (22) are fixed on the outer circumferential side of the rotating rod (7), and the bottom end of the inner cylinder (18) corresponds to the outer end of the rotating plate (22).

8. A method for breeding fry, characterized in that: The method uses the fry cultivation device according to claim 7, comprising the following steps: S1, blocking the drainage pipe (101), at which time the two semicircular plates (10) block the two through grooves correspondingly, the semicircular plates (10) cooperate with the wedge block (17) so that the partition plate (4) separates the upper and lower spaces of the outer cylinder (1), the faucet (3) is turned on, and the water inside the water pipe (2) flows into the inner side of the outer cylinder (1) through the faucet (3), the fry to be cultured is placed into the inner side of the outer cylinder (1) through the top opening of the outer cylinder (1), and the nutrients required for the culture are added into the inner side of the outer cylinder (1); S2, after the fry are cultivated, the motor (6) is started, the rotating rod (7) at the output end of the motor (6) rotates counterclockwise, the rotating rod (7) rotates counterclockwise, and the sleeve frame (11) is driven to rotate synchronously by the cross bar (13) inside the vertical groove, and the sleeve frame (11) drives the semicircular plate (10) to rotate, and the rotating semicircular plate (10) opens the top of the through groove, and the semicircular plate 0 cooperates to squeeze the inner cylinder (18), and the water on the top of the partition (4) passes through the filter frame (15) inside the through groove to the bottom of the outer cylinder (1), and the filter frame (15) collects garbage in the water, and the fry enters the inner side of the filter frame (15); S3, water gradually gathers at the bottom of the inner side of the outer cylinder (1) until the liquid level of the water corresponds to the bottom surface of the partition (4), the output end of the motor (6) causes the rotating rod (7) to rotate clockwise, and the rotating rod (7) rotating in the opposite direction drives the semicircular plate (10) to rotate clockwise by means of the sleeve frame (11) until the semicircular plate (10) blocks the through groove, and the fry inside the filter frame (15) enters the bottom of the partition (4) through the top opening (19), the inner cylinder (18) and the bottom opening (20) connected, and the drain pipe (101) is opened, and the water at the bottom of the outer cylinder (1) and the cultivated fry are discharged from the outer cylinder (1); S4, after the water at the bottom of the partition (4) is completely discharged, the output end of the motor (6) causes the rotating rod (7) to drive the sleeve frame (11) to rotate counterclockwise, and the faucet (3) discharges water to the inner side of the outer cylinder (1). The sleeve frame (11) that rotates counterclockwise drives the side plate (8) to rotate counterclockwise synchronously by means of the semicircular plate (10). After the bottom surface of the semicircular plate (10) is separated from the top of the inner cylinder (18), the elastic force of the spring (21) causes the inner cylinder (18) to move upward inside the filter frame (15). The upwardly moving inner cylinder (18) drives the bottom opening (20) to move upward, and the bottom end of the bottom opening (20) enters the inner side of the filter frame (15). The rotating semicircular plate (10) cooperates with the side plate (8) to scrape the garbage on the top surface of the partition (4) and the inner side wall of the outer cylinder (1). The water brings the garbage into the inner side of the filter frame (15), thereby completing the rapid cleaning of the outer cylinder (1).

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