A device for cultivating pengze crucian carp fry against iodine bubble of huanghong lake

Abstract

The application discloses a kind of anti-honghu iodine bubble worm Pengze crucian fry cultivation device, it is related to fry cultivation technical field, including: including cultivation body and inlet pipe, the inlet pipe is installed on the surface of cultivation body, the outer wall of cultivation body is fixedly installed with support frame, the top of support frame is fixedly installed with water tank, the top of water tank is fixedly installed with drive device, the output end surface of drive device is fixedly installed with cam, the bottom of water tank is fixedly installed with drain barrel, the bottom of drain barrel is fixedly installed with plastic tube, the inner wall of drain barrel is slidably installed with extrusion block, the top of extrusion block is fixedly installed with pressing frame, plugboard will intermittently open the bottom of feed cylinder by pushing cover plate, feed cylinder will intermittently increase feed in water body, by increasing the way of feed, attract fry away from dosing range reduce the damage to fry.

Description

Technical Field

[0001] This invention belongs to the field of seedling cultivation, specifically relating to a seedling cultivation device for Pengze crucian carp resistant to Honghu iodine-blister worms. Background Technology

[0002] Honghu iodine-spora is a myxosporidozoan parasite that lives in crucian carp. The disease it causes is commonly known as "throat spore disease," which is one of the most serious parasitic diseases currently threatening crucian carp farming in Pengze. Cultivating Pengze crucian carp seedlings resistant to Honghu iodine-spora is crucial.

[0003] In existing technologies, the control of iodine-bearing worms in Honghu Lake requires the addition of chemicals to the water. However, when the chemicals are sprayed, the fish fry may mistake them for food and come into direct contact with high concentrations of chemicals, which can harm them. Fish fry getting too close to the spraying area can also be harmful. It is difficult to keep the fish away from the spraying area when applying chemicals. At the same time, when the fish are feeding, it can easily cause oxygen deficiency in the feeding area, and it is difficult to adjust the oxygenation location while feeding. Summary of the Invention

[0004] Various embodiments of the disclosed technology relate to a Pengze crucian carp fry breeding device that can improve the reduction of damage to fish fry when adding drugs.

[0005] According to the disclosed embodiments, a Pengze crucian carp seedling cultivation device resistant to pisciformis in Honghu Lake includes: a cultivation body and a water inlet pipe. The water inlet pipe is installed on the surface of the cultivation body. A support frame is fixedly installed on the outer wall of the cultivation body. A water tank is fixedly installed on the top of the support frame. A driving device is fixedly installed on the top of the water tank. A cam is fixedly installed on the output end surface of the driving device. A drain cylinder is fixedly installed at the bottom of the water tank. A plastic pipe is fixedly installed at the bottom of the drain cylinder. A pressing block is slidably installed on the inner wall of the drain cylinder. A pressing frame is fixedly installed on the top of the pressing block. A force plate is fixedly installed on the surface of the water tank. A feed cylinder is fixedly installed on the top of the force plate. A cover plate is slidably installed on the bottom of the feed cylinder. A connecting frame is fixedly installed on the top of the pressing frame. An insert plate is slidably installed on the bottom of the force plate. An inclined block is fixedly installed on the bottom of the connecting frame. The side of the cover plate near the insert plate is set as an inclined surface. When the cam rotates, it contacts the pressing frame, causing the cam to rotate and push the pressing frame downward. The downward movement of the pressing frame causes the pressing block to move downward.

[0006] In some implementations, the pressing frame slides through the top of the water tank, and a first spring is provided between the pressing frame and the water tank. The first spring can drive the pressing frame to be positioned. The surface of the squeezing block has a water inlet, through which the medicine can enter the interior of the drain cylinder through the squeezing block. There are two cover plates, and a second spring is provided between the two cover plates. The elastic force of the second spring can drive the cover plate to return to its original position. The connecting frame slides through the force plate, so that the force plate can support the connecting frame. The two ends of the insert plate are in contact with the inclined block and the cover plate, respectively.

[0007] In some implementations, the surface of the load-bearing plate is provided with an oxygenation device, which includes an aerator. The aerator is fixedly installed on the top of the load-bearing plate, and a hose is fixedly installed at the bottom of the aerator. The surface of the hose has through holes, and the aerator can continuously oxygenate the water.

[0008] In some implementations, a rotating shaft is rotatably mounted on the bottom of the force-bearing plate, a winding wheel is fixedly mounted on the circumferential surface of the rotating shaft, a pull rope is fixedly mounted on the surface of the winding wheel, the bottom of the pull rope is fixedly connected to the bottom of the hose, a pawl is rotatably mounted on the surface of the insert plate, a ratchet is fixedly mounted on the circumferential surface of the rotating shaft, and a rotation damper is installed between the force-bearing plate and the rotating shaft. The ratchet has only half of its teeth to prevent the pawl from pushing the ratchet to rotate multiple times again when the ratchet is not fully reset, thus preventing the pull rope from being over-wound. The movement of the insert plate will drive the pawl to move, and the movement of the pawl will engage with the ratchet, causing the pawl to drive the ratchet and the rotating shaft to rotate.

[0009] In some implementations, a spiral spring is provided between the rotating shaft and the force plate, which can drive the rotating shaft to return to its original position. A torsion spring is provided between the pawl and the insert plate, which can support the pawl.

[0010] In some implementations, the surface of the culture body is provided with a sewage discharge device, which includes a baffle. The top of the culture body has an opening, and the baffle is slidably installed inside the opening. An arc-shaped frame is slidably installed on the side of the baffle inside the culture body. Bolts are threaded onto the surface of the baffle, and the bottom of the bolts is rotatably connected to the arc-shaped frame. A drive shaft is rotatably installed on the bottom of the culture body. A float is slidably installed on the circumferential surface of the drive shaft, and a fixing rod is fixedly installed on the circumferential surface of the drive shaft. Floating objects pushed by the float are discharged from the top of the baffle to prevent them from remaining for a long time and affecting water quality. When the arc-shaped frame is upward, the fixing rod can contact it. An external motor drives the drive shaft to rotate, which in turn drives the float and the fixing rod to rotate. When the float rotates, it pushes the floating objects on the top of the water surface.

[0011] In some implementations, a mounting frame is slidably installed on the outer wall of the cultivation body, and a nozzle is fixedly installed on the surface of the mounting frame. The nozzle is connected to the water inlet pipe through a connecting pipe. An L-shaped rod is fixedly installed on the top of the baffle, and a valve is installed on the surface of the connecting pipe. The water sprayed through the nozzle can increase the water flow speed near the floating object, improve the discharge effect of the floating object, and the sprayed water can also clean the float to prevent the floating object from remaining on the surface of the float.

[0012] In some implementations, a No. 3 spring is provided between the baffle and the opening. The elastic force of the No. 3 spring can drive the baffle to reset. A spring is provided between the valve and the valve control end. The elastic force of the spring can drive the valve control end to reverse and automatically close the valve. The L-shaped rod contacts the valve control end. Moving the L-shaped rod downward can push the valve control end to open the valve.

[0013] This invention provides a breeding device for Pengze crucian carp fry resistant to *Isopoda honghuensis*. It has the following beneficial effects:

[0014] 1. In this invention, the medicine is located inside the water tank. The rotation of the cam drives the squeezing frame and squeezing block to move up and down, causing the squeezing block to squeeze the medicine inside the drain cylinder and discharge it from the plastic tube. The plastic tube will disperse the medicine into the middle of the water body, avoiding the fish fry from mistaking the medicine for food and concentrating on the area where the medicine is added, thus preventing damage to the fish fry. When the squeezing frame moves up and down, it will drive the connecting frame to move, causing the insert plate to push the cover plate to open the bottom of the feed cylinder intermittently. The feed cylinder will intermittently add feed to the water body, attracting the fish fry away from the medicine addition area by adding feed, thereby reducing damage to the fish fry.

[0015] 2. This invention can increase oxygen in the water body through an aerator and a hose. When adding fish food, the movement of the insert plate causes the pawl to drive the ratchet and rotating shaft to rotate. The pull rope will pull the bottom of the hose upward, placing it in the upper part of the water body, increasing the oxygen supply to the upper part of the water body. This avoids oxygen deficiency when the fish fry are feeding, which will affect the fry's growth. It also avoids oxygen deficiency in the fish fry due to feeding while adding medicine, which will affect the fish fry's resistance. The rotation damper can reduce the reset speed of the hose, allowing the hose to continuously oxygenate the upper part of the water body.

[0016] 3. This invention improves water flow by rotating the float. When it is necessary to remove floating debris from the top of the water, rotating the bolt moves the arc-shaped frame upward. When the fixed rod rotates, it contacts the arc-shaped frame and pushes the baffle downward. When the float approaches the opening, the baffle moves downward, allowing the floating debris pushed by the float to be discharged from the top of the baffle, preventing the floating debris from remaining for a long time and affecting water quality. At the same time as the baffle moves downward, the valve opens, allowing clean water in the inlet pipe to be sprayed out from the nozzle through the connecting rod. The water sprayed from the nozzle is directed towards the opening, which increases the water flow speed near the floating debris, improving the discharge effect. The sprayed water can also clean the float to prevent floating debris from remaining on the surface of the float. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram illustrating an exemplary embodiment of the disclosed technology;

[0018] Figure 2 This is a schematic diagram illustrating the position of the drive device and the cam in an exemplary embodiment according to the disclosed technology;

[0019] Figure 3 This is a schematic cross-sectional view of a water tank according to an exemplary embodiment of the disclosed technology;

[0020] Figure 4 This illustrates exemplary embodiments based on the disclosed technology. Figure 3 Enlarged diagram of part A in the middle;

[0021] Figure 5 This is a schematic diagram illustrating the position of the rotation axis and the rotation damper in an exemplary embodiment according to the disclosed technology;

[0022] Figure 6 This is a schematic diagram illustrating a ratchet and pawl in an exemplary embodiment according to the disclosed technology;

[0023] Figure 7 This is a schematic diagram illustrating the positions of the baffle and the arc frame in an exemplary embodiment according to the disclosed technology;

[0024] Figure 8 This is a schematic diagram illustrating the positions of the baffle and L-shaped rod in an exemplary embodiment according to the disclosed technology;

[0025] Figure label:

[0026] 1. Cultivation body; 2. Water inlet pipe; 3. Support frame; 4. Water tank; 51. Drive device; 52. Cam; 53. Pressing frame; 54. Drainage cylinder; 55. Extrusion block; 56. Connecting frame; 57. Feed cylinder; 58. Inclined block; 59. Cover plate; 510. Insert plate; 61. Aerator; 62. Hose; 63. Rotating shaft; 64. Pull rope; 65. Ratchet; 66. Pawl; 67. Rotation damper; 71. Baffle; 72. Arc frame; 73. Bolt; 74. Drive shaft; 75. Float plate; 76. Fixing rod; 77. Mounting frame; 78. Nozzle; 79. Connecting pipe; 710. L-shaped rod; 8. Force plate. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-8 The invention will be further described in detail with reference to specific embodiments, but these are not intended to limit the invention:

[0028] One embodiment of the present invention is: a Pengze crucian carp seedling cultivation device resistant to pisciformis in Honghu Lake, comprising a cultivation body 1 and a water inlet pipe 2, the water inlet pipe 2 being installed on the surface of the cultivation body 1, a support frame 3 being fixedly installed on the outer wall of the cultivation body 1, a water tank 4 being fixedly installed on the top of the support frame 3, a driving device 51 being fixedly installed on the top of the water tank 4, a cam 52 being fixedly installed on the output end surface of the driving device 51, a drain cylinder 54 being fixedly installed on the bottom of the water tank 4, a plastic pipe being fixedly installed on the bottom of the drain cylinder 54, and a squeezing block 55 being slidably installed on the inner wall of the drain cylinder 54. A pressing frame 53 is fixedly installed on the top of the tank 5. A force plate 8 is fixedly installed on the surface of the water tank 4. A feed cylinder 57 is fixedly installed on the top of the force plate 8. A cover plate 59 is slidably installed on the bottom of the feed cylinder 57. A connecting frame 56 is fixedly installed on the top of the pressing frame 53. An insert plate 510 is slidably installed on the bottom of the force plate 8. A slope block 58 is fixedly installed on the bottom of the connecting frame 56. The side of the cover plate 59 closest to the insert plate 510 is set as a slope. The feed cylinder 57 will intermittently add feed to the water body. By adding feed, the fish fry will be attracted away from the medication area to reduce damage to the fish fry.

[0029] The pressing frame 53 slides through the top of the water tank 4. A first spring is installed between the pressing frame 53 and the water tank 4. The first spring can drive the pressing frame 53 to be positioned. The surface of the squeezing block 55 has a water inlet. The medicine can enter the interior of the drain cylinder 54 through the water inlet. There are two cover plates 59. A second spring is installed between the two cover plates 59. The elastic force of the second spring can drive the cover plate 59 to be reset. The connecting frame 56 slides through the force plate 8, so that the force plate 8 can support the connecting frame 56. The two ends of the insert plate 510 are in contact with the inclined block 58 and the cover plate 59, respectively.

[0030] In this embodiment, during operation: the medicine is added into the water tank 4, and the drive device 51 is activated. The drive device 51 drives the cam 52 to rotate. The rotation of the cam 52 contacts the pressing frame 53, causing the pressing frame 53 to move downward. The downward movement of the pressing frame 53 causes the squeezing block 55 to move downward. The downward movement of the squeezing block 55 squeezes the medicine inside the drain cylinder 54 and discharges it from the plastic tube. After the cam 52 disengages from the pressing frame 53, the elastic force of the first spring causes the pressing frame 53 to move upward. The upward movement of the pressing frame 53 causes the squeezing block 55 to move upward. When the squeezing block 55 reaches the top, the medicine inside the water tank 4 re-enters the drain cylinder 54 from the inlet. This achieves the effect of repeatedly squeezing out the medicine inside the water tank 4. When the pressing frame 53 moves downward, it will drive the connecting frame 56 to move downward. The downward movement of the connecting frame 56 will drive the inclined block 58 to move downward. When the inclined block 58 moves downward, the inclined surface of the inclined block 58 will contact the insert plate 510, causing the inclined block 58 to push the insert plate 510 towards the cover plate 59, so that the insert plate 510 will contact the inclined surface of the cover plate 59. The movement of the insert plate 510 will push the two cover plates 59 to move in opposite directions. The movement of the cover plates 59 will open the bottom of the feed cylinder 57, so that the feed inside the feed cylinder 57 will be discharged intermittently from the bottom. The discharged feed can attract the fish fry away from the medicine addition area.

[0031] Please see Figure 1 - Figure 8 Based on the above embodiments, in another embodiment of the present invention, the surface of the force plate 8 is provided with an oxygenation device, which includes an oxygenator 61. The oxygenator 61 is fixedly installed on the top of the force plate 8, and a hose 62 is fixedly installed on the bottom of the oxygenator 61. The surface of the hose 62 is provided with a through hole, and the oxygenator 61 can continuously oxygenate the water.

[0032] A rotating shaft 63 is rotatably mounted on the bottom of the force plate 8. A winding wheel is fixedly mounted on the circumferential surface of the rotating shaft 63. A pull rope 64 is fixedly mounted on the surface of the winding wheel. The bottom of the pull rope 64 is fixedly connected to the bottom of the hose 62. A pawl 66 is rotatably mounted on the surface of the insert plate 510. A ratchet 65 is fixedly mounted on the circumferential surface of the rotating shaft 63. A rotation damper 67 is installed between the force plate 8 and the rotating shaft 63. Only half of the teeth are provided on the ratchet 65 to prevent the pawl 66 from pushing the ratchet 65 to rotate more times when the ratchet 65 is not fully reset, so that the pull rope 64 is over-wound. This increases the oxygen supply to the upper part of the water body, avoids the lack of oxygen when the fish fry are feeding, which affects the fry breeding, and avoids the fish fry's resistance to hypoxia caused by feeding while adding medicine.

[0033] A spiral spring is provided between the rotating shaft 63 and the force plate 8. The spiral spring can drive the rotating shaft 63 to reset. A torsion spring is provided between the pawl 66 and the insert plate 510. The torsion spring can support the pawl 66.

[0034] The surface of the culture body 1 is provided with a sewage discharge device, which includes a baffle 71. The top of the culture body 1 has an opening, and the baffle 71 is slidably installed inside the opening. An arc-shaped frame 72 is slidably installed on one side of the baffle 71 inside the culture body 1. Bolts 73 are threaded on the surface of the baffle 71. The bottom of the bolts 73 is rotatably connected to the arc-shaped frame 72. A drive shaft 74 is rotatably installed on the bottom of the culture body 1. A float 75 is slidably installed on the circumferential surface of the drive shaft 74. A fixing rod 76 is fixedly installed on the circumferential surface of the drive shaft 74. Floating objects pushed by the float 75 are discharged from the top of the baffle 71 to prevent floating objects from remaining for a long time and affecting water quality.

[0035] A mounting bracket 77 is slidably installed on the outer wall of the cultivation body 1. A nozzle 78 is fixedly installed on the surface of the mounting bracket 77. The nozzle 78 is connected to the water inlet pipe 2 through a connecting pipe 79. An L-shaped rod 710 is fixedly installed on the top of the baffle 71. A valve is installed on the surface of the connecting pipe 79. The water sprayed through the nozzle 78 can increase the water flow speed near the floating object, improve the discharge effect of the floating object, and the sprayed water can also clean the float 75 to prevent the floating object from remaining on the surface of the float 75.

[0036] A No. 3 spring is installed between the baffle 71 and the opening. The spring force of the No. 3 spring can drive the baffle 71 to reset. A spring is installed between the valve and the valve control end. The spring force of the spring can drive the valve control end to reverse and automatically close the valve. The L-shaped rod 710 contacts the valve control end. Moving the L-shaped rod 710 downward can push the valve control end to open the valve.

[0037] In this embodiment, during operation, the aerator 61 aerates the water through the through-hole on the hose 62. When the insert plate 510 moves towards the cover plate 59, the movement of the insert plate 510 drives the pawl 66 to move. The pawl 66 engages with the ratchet 65, causing the ratchet 65 and the rotating shaft 63 to rotate. The rotation of the rotating shaft 63 drives the winding wheel to rotate, which in turn winds up the pull rope 64. After the pull rope 64 is wound up, it pulls the bottom of the hose 62 upward, so that the lower half of the hose 62 is above the water surface, allowing the hose 62 to concentrate oxygenation on the upper half of the water, avoiding... When fish fry are deprived of food and medication, and the insert plate 510 and pawl 66 move in opposite directions, they will not cause the rotating shaft 63 and ratchet 65 to rotate in opposite directions. After the pawl 66 and ratchet 65 disengage, the spring force of the spiral spring will cause the rotating shaft 63 to rotate in opposite directions to reset. However, the rotation damper 67 will reduce the speed of the rotating shaft 63's reverse rotation, so that the pawl 66 will contact the ratchet 65 again before the rotating shaft 63 has fully reset. This ensures that the rotating shaft 63 and the winding wheel maintain the winding effect on the pull rope 64, and prevents the rotating shaft 63 and the winding wheel from quickly resetting, which would cause the bottom of the hose 62 to move downwards rapidly and fail to oxygenate the water at the top.

[0038] When it is necessary to remove floating debris from the water surface, manually turn bolt 73. Turning bolt 73 upwards will cause the arc-shaped frame 72 to move upwards. When the arc-shaped frame 72 moves upwards, the fixing rod 76 can contact it. An external motor then drives the drive shaft 74 to rotate. The rotation of the drive shaft 74 will cause the float 75 and the fixing rod 76 to rotate. When the float 75 rotates, it will push the floating debris at the top of the water surface. Under the action of centrifugal force, the floating debris will flow towards the edge of the cultivation body 1. When the drive shaft 74 drives the fixing rod 76 to rotate, the fixing rod 76 will contact the arc-shaped frame 72, causing the fixing rod 76 to continue moving. When rotated, the arc frame 72 is pushed downward. The downward movement of the arc frame 72 causes the bolt 73 and the baffle 71 to move downward. When the baffle 71 moves downward, it opens the opening on the cultivation body 1, allowing the floating objects at the top of the water to be discharged from the opening. The downward movement of the baffle 71 causes the L-shaped rod 710 to move downward. The downward movement of the L-shaped rod 710 pushes the control end of the valve to rotate, thereby opening the valve. The water inside the water inlet pipe 2 is sprayed out from the nozzle 78 through the connecting pipe 79. The water sprayed out by the nozzle 78 washes the float 75 and accelerates the efficiency of the floating objects being discharged from the opening.

[0039] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and application concept of this application, should be included within the scope of protection of this application.

Claims

1. A breeding device for Pengze crucian carp fry resistant to pisciformis in Honghu Lake, comprising a breeding body (1) and a water inlet pipe (2), wherein the water inlet pipe (2) is installed on the surface of the breeding body (1), characterized in that, A support frame (3) is fixedly installed on the outer wall of the cultivation body (1). A water tank (4) is fixedly installed on the top of the support frame (3). A drive device (51) is fixedly installed on the top of the water tank (4). A cam (52) is fixedly installed on the output end surface of the drive device (51). A drain cylinder (54) is fixedly installed at the bottom of the water tank (4). A plastic pipe is fixedly installed at the bottom of the drain cylinder (54). An extrusion block (55) is slidably installed on the inner wall of the drain cylinder (54). The top of the extrusion block (55) is fixedly installed... A pressing frame (53) is installed, a force plate (8) is fixedly installed on the surface of the water tank (4), a feed cylinder (57) is fixedly installed on the top of the force plate (8), a cover plate (59) is slidably installed on the bottom of the feed cylinder (57), a connecting frame (56) is fixedly installed on the top of the pressing frame (53), an insert plate (510) is slidably installed on the bottom of the force plate (8), a slope block (58) is fixedly installed on the bottom of the connecting frame (56), and the side of the cover plate (59) near the insert plate (510) is set as a slope.

2. The Pengze crucian carp seedling cultivation device resistant to *Isodon spp.* from Honghu Lake as described in claim 1, characterized in that, The pressing frame (53) slides through the top of the water tank (4), and a No. 1 spring is provided between the pressing frame (53) and the water tank (4). The surface of the pressing block (55) is provided with a water inlet. Two cover plates (59) are provided, and a No. 2 spring is provided between the two cover plates (59). The connecting frame (56) slides through the force plate (8), and the two ends of the insert plate (510) are in contact with the inclined block (58) and the cover plate (59) respectively.

3. The Pengze crucian carp seedling cultivation device resistant to *Isodon spp.* from Honghu Lake as described in claim 2, characterized in that, The surface of the load-bearing plate (8) is provided with an oxygenation device, which includes an oxygenator (61). The oxygenator (61) is fixedly installed on the top of the load-bearing plate (8), and a hose (62) is fixedly installed at the bottom of the oxygenator (61). The surface of the hose (62) is provided with a through hole.

4. The Pengze crucian carp seedling cultivation device resistant to *Isodon spp.* from Honghu Lake as described in claim 3, characterized in that, A rotating shaft (63) is rotatably mounted on the bottom of the force plate (8). A winding wheel is fixedly mounted on the circumferential surface of the rotating shaft (63). A pull rope (64) is fixedly mounted on the surface of the winding wheel. The bottom of the pull rope (64) is fixedly connected to the bottom of the hose (62). A pawl (66) is rotatably mounted on the surface of the insert plate (510). A ratchet (65) is fixedly mounted on the circumferential surface of the rotating shaft (63). A rotation damper (67) is installed between the force plate (8) and the rotating shaft (63).

5. The Pengze crucian carp seedling cultivation device resistant to *Isodon spp.* from Honghu Lake as described in claim 4, characterized in that, A spiral spring is provided between the rotating shaft (63) and the force plate (8), and a torsion spring is provided between the pawl (66) and the insert plate (510).

6. The Pengze crucian carp seedling cultivation device resistant to *Isodon spp.* from Honghu Lake according to claim 5, characterized in that, The surface of the culture body (1) is provided with a sewage discharge device, which includes a baffle (71). The top of the culture body (1) has an opening, and the baffle (71) is slidably installed inside the opening. An arc frame (72) is slidably installed on one side of the baffle (71) inside the culture body (1). A bolt (73) is threaded on the surface of the baffle (71). The bottom of the bolt (73) is rotatably connected to the arc frame (72). A drive shaft (74) is rotatably installed on the bottom of the culture body (1). A float plate (75) is slidably installed on the circumferential surface of the drive shaft (74). A fixing rod (76) is fixedly installed on the circumferential surface of the drive shaft (74).

7. The Pengze crucian carp seedling cultivation device resistant to *Isodon spp.* from Honghu Lake according to claim 6, characterized in that, The outer wall of the cultivation body (1) is slidably mounted with a mounting frame (77), and a nozzle (78) is fixedly mounted on the surface of the mounting frame (77). The nozzle (78) is connected to the water inlet pipe (2) through a connecting pipe (79). An L-shaped rod (710) is fixedly mounted on the top of the baffle (71), and a valve is mounted on the surface of the connecting pipe (79).

8. The Pengze crucian carp seedling cultivation device resistant to *Isodon spp.* from Honghu Lake as described in claim 7, characterized in that, A No. 3 spring is provided between the baffle (71) and the opening, a spring is provided between the valve and the valve control end, and the L-shaped rod (710) is in contact with the valve control end.

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