Fry hatching and breeding device

Abstract

The utility model relates to a fry incubation and cultivation device which comprises a box body with a blow-off pipe arranged at the bottom, an arc-shaped arching part protruding outwards is arranged on one side wall of the box body, a push plate for driving fry to the upstream is arranged in the box body below the arching part, and the push plate is composed of a fixing plate and a grating plate on the same side as the arching part. A lead screw I driven by a motor I is arranged on the fixing plate, arc-shaped sliding grooves with the bottom ends extending into the inner side wall of the box body are formed in the two side walls in the opening of the arching part, and an arc-shaped plate with the two ends extending into the corresponding arc-shaped sliding grooves is further arranged in the opening of the arching part. A rotating shaft coaxial with the arc-shaped plate is longitudinally arranged in the box body, the rotating shaft is driven by a motor II, and a connecting rod connected with the side wall of the top end of the arc-shaped plate is arranged on the rotating shaft in the radial direction. The device is simple in structure and convenient to use.

Description

Technical Field

[0001] This invention relates to the field of fish fry hatching and cultivation, and particularly to a fish fry hatching and cultivation device. Background Technology

[0002] The existing fish fry hatching and rearing box culture technology has the following drawbacks: After using the fish fry hatching and rearing box for a long time, fish food and other waste will be scattered inside the fish fry hatching and rearing box. This waste will affect the hatching and rearing of fish fry. At this time, the staff needs to clean up the waste. Currently, the waste is usually cleaned up by changing the water. However, in the process of completely changing the water, the fish fry are easily injured.

[0003] To address this, a fish fry hatching and rearing device, such as the one described in patent CN221962589U, was developed. While addressing the aforementioned technical problems, this device has the following drawbacks: it uses a filter to drive the fish fry to one side of the rearing box, then uses a partition plate to confine the fry to one side, and then drains liquid from the other side of the box to conserve water. However, in practice, most particulate impurities irregularly settle at different areas at the bottom of the rearing box. Even if the bottom of the box is tilted, the settled impurities do not easily flow to the very bottom and collect. Therefore, even if the fish fry are driven to one side of the box and... With the partition plate blocking the way, there's a problem: the sediment at the bottom of the fry rearing tank on the isolated side can't be cleaned properly. Meanwhile, the relatively clean liquid in the upper part of the rearing tank on the other side of the partition plate also needs to be completely drained to remove the sediment at the bottom. Otherwise, simply draining the bottom portion of the liquid won't easily carry away the sediment. Furthermore, it's difficult to drain only the bottom liquid without draining the top, because when the drain pipe is opened, liquid from different areas of the rearing tank may flow into and out of the drain pipe. There's no situation where the drain pipe only drains the original liquid from the lower half of the rearing tank before draining the original liquid from the upper half. This leads to the aforementioned problems. Summary of the Invention

[0004] The purpose of this invention is to provide a fish fry hatching and rearing device.

[0005] The technical problem of this invention is mainly solved by the following technical solution:

[0006] A fish fry hatching and rearing device includes a box with a drain pipe at the bottom. An arc-shaped arch protrudes outward from one side wall of the box. A push plate is installed inside the box below the arch to drive the fish fry upstream. The push plate consists of a fixed plate and a grid plate on the same side as the arch. A lead screw I driven by a motor I is installed on the fixed plate. Arc-shaped grooves extending into the inner side wall of the box are provided on both sides of the opening of the arch. Arc-shaped plates extending into the corresponding arc-shaped grooves are also provided inside the opening of the arch. A rotating shaft coaxially arranged with the arc-shaped plates is arranged longitudinally inside the box. The rotating shaft is driven by a motor II. A connecting rod connected to the top side wall of the arc-shaped plates is arranged radially on the rotating shaft.

[0007] Preferably, the fixed plate has a right-angled trapezoidal cross section, with the hypotenuse of the fixed plate located at the top. The upper bottom end of the fixed plate is fixedly connected to the grid plate. The fixed plate and the grid plate divide the box into upper and lower parts. The fixed plate is also provided with a screw hole for screwing the lead screw I.

[0008] Preferably, a strip groove is vertically provided at the bottom of the inner side wall of the box, and a slider located in the strip groove is provided on the fixing plate.

[0009] Preferably, a mounting plate for fixing motor I is provided on the top of the side wall of the housing, and a bearing for fixing the end of the lead screw I is provided on the mounting plate and the side wall of the housing.

[0010] Preferably, a recessed portion is provided on one side wall of the bottom of the box body, located below the arc-shaped sliding groove. A scraper is provided in the recessed portion, and a screw hole is provided on the scraper for screwing the lead screw II. The lead screw II is staggered from the lead screw I. The lead screw II is driven by the motor III. Both ends of the lead screw II are fixed to the corresponding side wall of the box body by bearings. A limiting rod staggered from the lead screw I is also provided at the bottom of the end face of the scraper on the same side as the lead screw I.

[0011] Preferably, the bottom end of the arc-shaped groove is located directly below the bottom of the fixed plate, and the arc-shaped groove and the arc plate are coaxially arranged.

[0012] The beneficial effects of this invention are as follows: This invention uses a pusher plate to move the fish fry inside the tank to the upper part of the arc-shaped chute. The motor II drives the arc-shaped plate to rotate below the grid plate in the pusher plate via a rotating shaft and connecting rod. This achieves the separation of the tank into upper and lower parts by the fixed plate and the arc-shaped plate in the pusher plate to prevent the flow of liquid between the upper and lower sides. At the same time, the moving scraper scrapes off the sediment at the bottom of the tank and mixes it with the liquid before it is discharged through the drain pipe. Due to the obstruction of the fixed plate and the arc-shaped plate, the liquid in the upper part of the tank can be effectively prevented from being discharged, thus saving water. At the same time, scraping off the sediment at the bottom of the tank and mixing it with the liquid at the bottom of the tank before discharge can also achieve the purpose of thoroughly cleaning the sediment and a small amount of sewage at the bottom of the tank. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention;

[0014] Figure 2 This is a cross-sectional view of the present invention;

[0015] Figure 3 yes Figure 2 A schematic diagram of the structure in another state;

[0016] Figure 4 yes Figure 3 A magnified view of a portion of the image.

[0017] In the diagram: 1. Box body, 2. Arched part, 3. Push plate, 31. Fixed plate, 32. Grating plate, 4. Motor I, 5. Lead screw I, 6. Arc-shaped slide, 7. Arc-shaped plate, 8. Rotating shaft, 9. Motor II, 10. Connecting rod, 11. Strip groove, 12. Slider, 13. Mounting plate, 14. Recessed part, 15. Scraper, 16. Lead screw II, 17. Motor III, 18. Limiting rod. Detailed Implementation

[0018] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0019] A fish fry hatching and rearing device includes a box 1 with a sewage pipe at the bottom. An arc-shaped arch 2 protrudes outward from one side wall of the box 1. A push plate 3 is provided in the box 1 below the arch 2 to drive the fish fry upstream. The push plate 3 is composed of a fixed plate 31 and a grid plate 32 on the same side as the arch 2. A lead screw 15 driven by a motor 14 is provided on the fixed plate 31.

[0020] Both sides of the opening of the arched part 2 are provided with arc-shaped grooves 6 extending to the inner side wall of the box body 1. The opening of the arched part 2 is also provided with arc-shaped plates 7 extending to the corresponding arc-shaped grooves 6 at both ends. A rotating shaft 8 is longitudinally arranged inside the box body 1 and coaxially arranged with the arc-shaped plates 7. The rotating shaft 8 is driven by a motor II9. A connecting rod 10 is radially arranged on the rotating shaft 8 and connected to the top side wall of the arc-shaped plates 7.

[0021] like Figure 2 , 3 As shown in Figure 4, the fixed plate 31 has a right-angled trapezoidal cross section, with the hypotenuse of the fixed plate 31 located at the top. The upper bottom end of the fixed plate 31 is fixedly connected to the grid plate 32. The fixed plate 31 and the grid plate 32 divide the box 1 into upper and lower parts. The fixed plate 31 is also provided with a screw hole for screwing the lead screw I5.

[0022] like Figure 4 As shown, a strip groove 11 is vertically provided at the bottom of the inner side wall of the housing 1, and a slider 12 located in the strip groove 11 is provided on the fixing plate 31. When the lead screw I5 rotates in the screw hole on the fixing plate 31 to drive the fixing plate 31 and the grid plate 32 to move up and down, the fixing plate 31 will drive the slider 12 to move in the same direction in the strip groove 11. The strip groove 11 locks the slider 12 to prevent the fixing plate 31 and other components from rotating together with the lead screw I5.

[0023] In this embodiment, a mounting plate 13 for fixing the motor I4 is provided on the top of the side wall of the housing 1, and a bearing corresponding to the end of the fixing screw I5 is provided on the mounting plate 13 and the side wall of the housing 1.

[0024] A recessed portion 14 is provided on one side wall of the bottom of the housing 1, located below the arc-shaped sliding groove 6. A scraper 15 is provided in the recessed portion 14. The scraper 14 is provided with a screw hole for screwing into the lead screw II 16. The lead screw II 16 is offset from the lead screw I 5. The lead screw II 16 is driven by the motor III 17. Both ends of the lead screw II 16 are fixed to the corresponding side wall of the housing 1 by bearings. A limiting rod 18 is also provided at the bottom of the end face of the scraper 15 on the same side as the lead screw I 5, which is offset from the lead screw I 5.

[0025] like Figure 3 As shown, the bottom end of the arc-shaped slide 6 is located directly below the bottom of the fixed plate 31, and the arc-shaped slide 6 and the arc plate 7 are coaxially arranged.

[0026] Method of using the present invention: as follows Figure 2As shown, motor II9 fixes the arc plate 7 in the arc groove inside the opening of the arched part 2 through the rotating shaft 8 and connecting rod 10, while the push plate 3 is located at the bottom of the box body 1. Impurities generated during the cultivation of fish fry will fall into the bottom of the box body 1 through the aperture of the grid plate 32 and accumulate.

[0027] When it is necessary to clean the sediment at the bottom of the tank 1, such as Figure 3 As shown, motor I4 drives lead screw I5 to rotate in the screw hole on fixed plate 31, thereby moving fixed plate 31 and grid plate 32 upward to above the bottom of arc-shaped chute 6. This allows the upward-moving fixed plate 31 and grid plate 32 to drive fish fry that may be located at the bottom of the tank 1 to above the arc-shaped chute 6. Liquid can flow through the holes of grid plate 32 to reduce the resistance encountered by push plate 3 when it moves upward. At the same time, motor II9 drives arc plate 7 to rotate clockwise through shaft 8 and connecting rod 10. As arc plate 7 slides in arc-shaped chute 6, its bottom end slides through the gap between grid plate 32 and the bottom of arched part 2. Finally, the bottom end of arc plate 7 slides to below fixed plate 31 and abuts against its bottom surface, thus securing arc plate 7 to the bottom of grid plate 32. Ultimately, fixed plate 31 and arc plate 7 divide the tank 1 into upper and lower parts to prevent liquid flow between the upper and lower sides.

[0028] Next, motor III17 drives lead screw II16 to rotate within the screw hole on scraper 15, thereby driving scraper 15 to move and simultaneously scraping off and separating sediment that may accumulate at the bottom of tank 1. The scraped-off sediment mixes with the liquid at the bottom of tank 1 and can be discharged by opening the drain pipe. Due to the obstruction of fixed plate 31 and arc-shaped plate 7, the liquid in the upper part of tank 1 can be effectively prevented from being discharged, thus saving water. At the same time, the sediment at the bottom of tank 1 is scraped off and mixed with the liquid at the bottom of tank 1 before being discharged. This process can also thoroughly clean the bottom sediment and a small amount of sewage inside the tank 1. During the process, after the scraper 15 moves to a certain position to the left, it will cause the limiting rod 18 to contact the left side wall of the tank 1. This limits the leftward movement of the scraper 15 and prevents it from moving too far to the left and contacting the lead screw I5, which would affect its safety. At the same time, the limiting rod 18 is staggered from the lead screw I5 and the strip groove 11. After the bottom sediment inside the tank 1 is cleaned, the arc plate 7 is reset, the push plate 3 is reset downward, and new liquid is added to the tank 1 to fill it up for the next use.

[0029] The present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A fish fry hatching and rearing device, comprising a box with a drain pipe at the bottom, characterized in that: An arc-shaped arch protrudes outward from one side wall of the box. A push plate is installed inside the box below the arch to drive the fish fry upstream. The push plate consists of a fixed plate and a grid plate on the same side as the arch. A lead screw I driven by motor I is installed on the fixed plate. Arc-shaped grooves extending into the inner side wall of the box are provided on both sides of the opening of the arch. Arc-shaped plates extending into the corresponding arc-shaped grooves are also provided in the opening of the arch. A rotating shaft coaxial with the arc-shaped plates is arranged longitudinally inside the box. The rotating shaft is driven by motor II. A connecting rod connected to the top side wall of the arc-shaped plates is arranged radially on the rotating shaft.

2. A fish larvae hatching and rearing device according to claim 1, characterized in that: The fixed plate has a right-angled trapezoidal cross section, with the hypotenuse of the fixed plate located at the top. The top bottom of the fixed plate is fixedly connected to the grid plate. The fixed plate and the grid plate divide the box into upper and lower parts. The fixed plate is also provided with a screw hole for screwing the lead screw I.

3. The fish larvae hatching and rearing device according to claim 1, characterized in that: A strip groove is vertically provided at the bottom of the inner side wall of the box, and a slider located in the strip groove is provided on the fixing plate.

4. The fish larvae hatching and rearing device according to claim 1, wherein: The top of the side wall of the housing is provided with a mounting plate for fixing motor I, and the mounting plate and the side wall of the housing are provided with bearings for fixing the corresponding ends of the lead screw I.

5. The fish larvae hatching and rearing device according to claim 1, wherein: A recessed portion is provided on one side wall of the bottom of the box body, located below the arc-shaped sliding groove. A scraper is provided in the recessed portion, and a screw hole is provided on the scraper to be screwed to lead screw II. Lead screw II is staggered from lead screw I. Lead screw II is driven by motor III. Both ends of lead screw II are fixed to the corresponding side wall of the box body by bearings. A limiting rod is also provided at the bottom of the end face of the scraper on the same side as lead screw I, which is staggered from lead screw I.

6. The fish larvae hatching and rearing device according to claim 1, wherein: The bottom end of the arc-shaped slide is located directly below the bottom of the fixed plate, and the arc-shaped slide and the arc plate are coaxially arranged.

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