Auxiliary sewage device for fish fry culture pond

By adjusting the positions of the filter cartridge and the regulating cartridge, and the structure of the built-in fan blade cleaning plate, the problems of flexible adaptation of the filtration device and wastewater treatment in the fish fry rearing pond were solved, realizing safe filtration of fish fry and recycling of wastewater, improving sewage discharge efficiency and reducing costs.

CN224368793UActive Publication Date: 2026-06-19YUNNAN AMUR STURGEON GRP (HUIZE) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN AMUR STURGEON GRP (HUIZE) CO LTD
Filing Date
2025-07-16
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing auxiliary sewage discharge devices for fish fry rearing ponds cannot flexibly adjust the filtration structure, easily sucking in fish fry and eggs, causing the filtration channels to become clogged, resulting in low sewage treatment efficiency and difficulty in recycling.

Method used

By adjusting the relative positions of the filter cylinders and the regulating cylinders, the size of the filter slots is changed to accommodate different sizes of fish fry and eggs. Fan blades and cleaning plates are installed inside the filter cylinders to prevent impurities from being adsorbed. Wastewater is pumped to the sedimentation tank using a sewage pump, and an agitator accelerates sedimentation, thus achieving the separation of sludge and water.

Benefits of technology

This prevents fish fry and eggs from being sucked in, reduces blockages, improves sewage discharge efficiency, enables rapid separation and recycling of wastewater, and lowers breeding costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an auxiliary sewage discharge device for fish fry rearing ponds, comprising a sewage pump, a sedimentation tank fixedly connected to the output end of the sewage pump via a water guide pipe, a motor fixedly connected to the upper surface of the sedimentation tank, a stirring paddle fixedly connected to the output end of the motor, a storage tank detachably connected to the lower surface of the sedimentation tank, a connecting pipe fixedly connected to the input end of the sewage pump via a sewage discharge pipe, a filter cylinder fixedly connected to the end of the connecting pipe away from the sewage discharge pipe, an adjusting cylinder rotatably connected to the inner wall of the filter cylinder, a slider fixedly connected to the upper surface of the adjusting cylinder, a base plate threadedly connected to the lower surface of the filter cylinder, a rotating rod rotatably connected to the inner wall of the base plate, a cleaning plate fixedly connected to the side surface of the rotating rod, and a fan blade fixedly connected to the end of the rotating rod away from the base plate. Through these components, after water is drawn into the filter cylinder, the fan blade and cleaning plate rotate, preventing impurities from remaining in the filter cylinder and affecting the sewage discharge process, and the stirring paddle accelerates the sedimentation speed of sludge and impurities, facilitating rapid separation of water and impurities.
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Description

Technical Field

[0001] This utility model relates to the field of fish fry cultivation technology, and in particular to an auxiliary sewage discharge device for fish fry cultivation ponds. Background Technology

[0002] During fish fry rearing, if wastewater and sludge in the rearing pond are not discharged in a timely manner, it will seriously affect the survival environment and growth of the fish fry. Therefore, auxiliary sewage discharge devices are an important piece of equipment in the fish fry rearing process. However, existing auxiliary sewage discharge devices for fish fry rearing ponds have many shortcomings. First, the filtration structure of traditional sewage discharge devices is usually fixed and cannot be flexibly adjusted according to the size of the fish fry and eggs. During the sewage discharge process, fish fry and eggs are easily sucked into the sewage discharge system, causing economic losses. Second, during the sewage discharge process, sludge and other impurities are easily adsorbed on the filter components, clogging the filter channels, affecting sewage discharge efficiency, and making cleaning and maintenance difficult. Third, the traditional devices have a relatively simple method for treating wastewater and sludge, with a slow sedimentation process, making it difficult to achieve rapid and effective separation and recycling of wastewater, which not only wastes water resources but also increases the rearing cost. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an auxiliary sewage discharge device for fish fry rearing ponds. By adjusting the relative position between the filter cylinder and the regulating cylinder, the gap between the filter cylinder and the regulating cylinder is staggered, thereby changing the size of the filter tank gap to accommodate fish fry and eggs of different sizes, and to prevent fish fry and eggs from being sucked into the filter cylinder. In addition, a fan blade and a cleaning plate are installed inside the filter cylinder. After water is sucked into the filter cylinder, it will drive the fan blade to rotate, thereby causing the fan blade to drive the cleaning plate to rotate inside the filter cylinder, preventing sludge and other impurities from being adsorbed inside the filter cylinder and affecting the sewage discharge process. A sewage pump is used to send sewage and sludge into a sedimentation tank. A stirring paddle is used to make the sewage and sludge flow downward, accelerating the sedimentation process, so that sludge and solid impurities can sink into the collection tank, so that the filtered water remains in the sedimentation tank and can be discharged back into the rearing pond for recycling.

[0004] This utility model also provides an auxiliary sewage discharge device for a fish fry rearing pond, comprising: a sewage pump, the output end of which is fixedly connected to a sedimentation tank via a water guide pipe, a motor fixedly connected to the upper surface of the sedimentation tank, a stirring paddle fixedly connected to the output end of the motor, and a storage tank detachably connected to the lower surface of the sedimentation tank.

[0005] The input end of the sewage pump is fixedly connected to a connecting pipe via a sewage discharge pipe. A filter cylinder is fixedly connected to the end of the connecting pipe away from the sewage discharge pipe. An adjusting cylinder is rotatably connected to the inner side wall of the filter cylinder. A slider is fixedly connected to the upper surface of the adjusting cylinder. A base plate is threadedly connected to the lower surface of the filter cylinder. A rotating rod is rotatably connected to the inner side wall of the base plate. A cleaning plate is fixedly connected to the side surface of the rotating rod. A fan blade is fixedly connected to the end of the rotating rod away from the base plate. These components allow the fan blade and cleaning plate to rotate after water is drawn into the filter cylinder, preventing impurities from remaining inside the filter cylinder and affecting the normal sewage discharge process. The stirring paddle accelerates the sedimentation of sludge and impurities, facilitating rapid separation of water and impurities.

[0006] According to the auxiliary sewage discharge device for fish fry rearing ponds described in this utility model, the end of the slider away from the adjusting cylinder extends to the outside of the filter cylinder, and the lower surface of the slider is rotatably connected to the filter cylinder. The adjusting cylinder can be rotated by sliding the slider outside the filter cylinder, thereby misaligning the grooves on the filter cylinder and the adjusting cylinder, thus changing the overall size of the grooves and preventing fish eggs from being sucked into the filter cylinder.

[0007] According to the auxiliary sewage discharge device for fish fry rearing ponds described in this utility model, the side surface of the cleaning plate is rotatably connected to the regulating cylinder, and the upper surface of the bottom plate is rotatably connected to the cleaning plate. The cleaning plate can be used to clean the inner wall of the regulating cylinder, preventing sludge and impurities from adhering to the regulating cylinder.

[0008] According to the present invention, an auxiliary sewage discharge device for a fish fry rearing pond includes a fan blade located inside a connecting pipe, and a lower surface of a regulating cylinder rotatably connected to a base plate. When water is drawn into the connecting pipe, it drives the fan blade to rotate, which in turn causes the cleaning plate to rotate.

[0009] According to the present invention, an auxiliary sewage discharge device for a fish fry rearing pond includes a rotating block fixedly connected to the end of the rotating rod away from the fan blades, and the lower surface of the base plate being rotatably connected to the rotating block. This ensures that the rotating block and the cleaning plate are located on the lower and upper surfaces of the base plate, respectively, preventing the rotating rod and the cleaning plate from detaching from the base plate.

[0010] According to the auxiliary sewage discharge device for fish fry rearing ponds described in this utility model, a support foot is fixedly connected to the lower surface of the base plate, and the support foot is located below the rotating block. The support foot supports the filter cylinder to prevent the rotating block from contacting the bottom of the rearing pond.

[0011] According to the auxiliary sewage discharge device for fish fry rearing ponds described in this utility model, a discharge hopper is fixedly connected to the lower surface of the sedimentation tank, and the end of the discharge hopper away from the sedimentation tank is located inside the receiving tank. The discharge hopper facilitates the discharge of sludge and impurities into the sedimentation tank.

[0012] According to the present invention, an auxiliary sewage discharge device for a fish fry rearing pond includes a regulating valve on the side surface of the sedimentation tank, located above the discharge hopper. A drainage pipe can be connected to the regulating valve, and after the sludge and impurities have settled into the collection tank, the filtered water in the sedimentation tank is flushed into the rearing pond.

[0013] Beneficial effects:

[0014] The auxiliary sewage discharge device for the fish fry rearing pond in this technical solution adjusts the relative position between the filter cylinder and the regulating cylinder, staggering the gaps between them to change the size of the filter tank gaps. This accommodates fish fry and eggs of different sizes and prevents them from being sucked into the filter cylinder. Inside the filter cylinder, there are also fan blades and cleaning plates. When water is sucked into the filter cylinder, it drives the fan blades to rotate, which in turn drives the cleaning plates to rotate inside the filter cylinder. This prevents sludge and other impurities from adhering to the filter cylinder and affecting the sewage discharge process. A sewage pump then sends the sewage and sludge into a sedimentation tank. A stirring paddle causes the sewage and sludge to flow downwards, accelerating the sedimentation process. This allows the sludge and solid impurities to settle into the collection tank, leaving the filtered water in the sedimentation tank for reuse in the rearing pond. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is an overall structural diagram of the auxiliary sewage discharge device for fish fry rearing ponds of this utility model;

[0017] Figure 2 This is a structural diagram of the filter cylinder of the auxiliary sewage discharge device for fish fry rearing ponds according to this utility model;

[0018] Figure 3 This is an exploded view of the filter cylinder of the auxiliary sewage discharge device for fish fry rearing ponds according to this utility model;

[0019] Figure 4 This is a cross-sectional view of the sedimentation tank and the storage tank of the auxiliary sewage discharge device for fish fry rearing ponds of this utility model.

[0020] Legend:

[0021] 1. Filter cartridge; 2. Sewage pipe; 3. Sewage pump; 4. Water guide pipe; 5. Sedimentation tank; 6. Motor; 7. Regulating valve; 8. Collection tank; 9. Connecting pipe; 10. Sliding block; 11. Regulating cylinder; 12. Base plate; 13. Support leg; 14. Fan blade; 15. Cleaning plate; 16. Rotating rod; 17. Rotating block; 18. Agitator; 19. Discharge hopper. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1-4 This utility model embodiment provides an auxiliary sewage discharge device for a fish fry rearing pond, which includes: a sewage pump 3, a sedimentation tank 5 fixedly connected to the output end of the sewage pump 3 through a water guide pipe 4, a motor 6 fixedly connected to the upper surface of the sedimentation tank 5, a stirring paddle 18 fixedly connected to the output end of the motor 6, and a storage tank 8 detachably connected to the lower surface of the sedimentation tank 5.

[0024] Specifically, the sewage pump 3 is used to extract sewage and sludge from the cultivation tank and send them into the sedimentation tank 5 through the water pipe 4. Then, the motor 6 drives the stirring paddle 18 to rotate, causing the sewage and sludge to flow downwards, accelerating the rapid sedimentation of sludge and solid particles, and discharging them from the discharge hopper 19 at the bottom of the sedimentation tank 5 into the collection tank 8 for collection. The filtered water will remain in the sedimentation tank 5.

[0025] The input end of the sewage pump 3 is fixedly connected to a connecting pipe 9 via a sewage discharge pipe 2. A filter cylinder 1 is fixedly connected to the end of the connecting pipe 9 away from the sewage discharge pipe 2. An adjusting cylinder 11 is rotatably connected to the inner side wall of the filter cylinder 1. The lower surface of the adjusting cylinder 11 is rotatably connected to the base plate 12. A slider 10 is fixedly connected to the upper surface of the adjusting cylinder 11. The end of the slider 10 away from the adjusting cylinder 11 extends to the outside of the filter cylinder 1. The lower surface of the slider 10 is rotatably connected to the filter cylinder 1. The lower surface of the filter cylinder 1 is threadedly connected to the base plate 12. The upper surface of the base plate 12 is rotatably connected to the cleaning plate 15. A rotating rod 16 is rotatably connected to the inner side wall of the base plate 12. The cleaning plate 15 is fixedly connected to the side surface of the rotating rod 16. The side surface of the cleaning plate 15 is rotatably connected to the adjusting cylinder 11. A fan blade 14 is fixedly connected to the end of the rotating rod 16 away from the base plate 12. The fan blade 14 is located inside the connecting pipe 9.

[0026] Specifically, the output end of the sewage pump 3 is connected to the sewage pipe 2 and the filter cylinder 1. The sewage pipe 2 is a flexible hose with sufficient length. Before use, the rotation angle of the adjusting cylinder 11 can be adjusted by sliding the slider 10 to make the grooves on the adjusting cylinder 11 misalign with the grooves on the filter cylinder 1, thereby adjusting the overall width of the grooves to accommodate different sizes of fish fry and eggs, preventing the fish fry and eggs from being sucked into the filter cylinder 1. Then, the sewage pipe 2 is pulled to place the filter cylinder 1 into the bottom of the rearing pond, and then the sewage pump 3 is started. Sewage will be sucked into the filter cylinder 1 from the reserved groove between the filter cylinder 1 and the adjusting cylinder 11, and then enter the sewage pump 3 through the connecting pipe 9. At the same time, water flows into the connecting pipe. During process 9, the fan blade 14 will rotate, and the fan blade 14 will drive the cleaning plate 15 to rotate along the inner wall of the regulating cylinder 11 through the rotating rod 16, thereby scraping off the impurities adsorbed on the inside of the regulating cylinder 11. After absorbing the sewage and sludge in one place, the drain pipe 2 can be pulled to put the filter cylinder 1 back into the cultivation tank in another area for continued use. After use, the filter cylinder 1 is removed, the bottom plate 12 is rotated and removed, so that the inside of the filter cylinder 1, the fan blade 14 and the cleaning plate 15 can be cleaned. The diameter of the fan blade 14 is smaller than the diameter of the connecting pipe 9, so that the fan blade 14 will not affect the normal discharge of sewage and sludge in the connecting pipe 9.

[0027] A rotating block 17 is fixedly connected to the end of the rotating rod 16 away from the fan blade 14. The lower surface of the base plate 12 is rotatably connected to the rotating block 17. A support leg 13 is fixedly connected to the lower surface of the base plate 12. The support leg 13 is located below the rotating block 17. A discharge hopper 19 is fixedly connected to the lower surface of the sedimentation tank 5. The end of the discharge hopper 19 away from the sedimentation tank 5 is located inside the collection tank 8. An adjusting valve 7 is provided on the side surface of the sedimentation tank 5. The adjusting valve 7 is located above the discharge hopper 19.

[0028] Specifically, a rotating block 17 is installed at the bottom of the base plate 12. The rotating block 17 can prevent the cleaning plate 15 and the rotating rod 16 from detaching from the base plate 12 during use. When the base plate 12 is removed from the filter cylinder 1, the cleaning plate 15 and the rotating rod 16 can be removed from the filter cylinder 1 for easy cleaning. A support foot 13 is also installed below the base plate 12 to support the filter cylinder 1 and prevent the base plate 12 from directly contacting the bottom of the tank. A discharge hopper 19 is also provided below the sedimentation tank 5, and a sealing ring is provided on the outside of the discharge hopper 19. This allows the impurities and sewage in the sedimentation tank 5 to be discharged into the collection tank 8 while preventing water leakage. A regulating valve 7 is also installed on the sedimentation tank 5. The regulating valve 7 can be connected to the drainage pipe. When the sludge and solid particles settle into the collection tank 8, the regulating valve 7 can be opened to allow the filtered water to flow back into the cultivation tank, so that the water can be recycled.

[0029] Working principle: Before use, slide slider 10 according to the size of the fish fry and eggs to prevent them from entering the filter cylinder 1 through the slot between the filter cylinder 1 and the regulating cylinder 11. Then, start the sewage pump 3 to suck the sewage and sludge into the filter cylinder 1, and then into the drain pipe 2 through the connecting pipe 9. As the water flows, it will drive the fan blades 14 inside the connecting pipe 9 to rotate, which in turn drives the cleaning plate 15 to rotate. The cleaning plate 15 scrapes away the impurities adsorbed inside the regulating cylinder 11 to prevent the filter cylinder 1 from being blocked. Afterwards, the sewage and sludge will be sent to the drain pipe 4. The wastewater and sludge are placed in the sedimentation tank 5. The motor 6 drives the stirring paddle 18 to rotate, causing the wastewater and sludge to flow downwards, accelerating the rapid sedimentation of sludge and solid particles. The wastewater is discharged from the discharge hopper 19 at the bottom of the sedimentation tank 5 into the collection tank 8 for collection. The filtered water remains in the sedimentation tank 5 and is sent back to the cultivation tank through the regulating valve 7. After the wastewater discharge is completed, the bottom plate 12 can be rotated to remove the fan blades 14 and cleaning plate 15 from the filter cylinder 1 for cleaning. The sedimentation tank 5 can then be removed from the collection tank 8 to clean the sludge and impurities that have settled in the collection tank 8.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An auxiliary sewage discharge device for a fish fry rearing pond, characterized in that, include: A sewage pump (3) is fixedly connected to a sedimentation tank (5) via a water guide pipe (4) at its output end. A motor (6) is fixedly connected to the upper surface of the sedimentation tank (5). An agitator (18) is fixedly connected to the output end of the motor (6). A storage tank (8) is detachably connected to the lower surface of the sedimentation tank (5). The input end of the sewage pump (3) is fixedly connected to a connecting pipe (9) through a sewage pipe (2). A filter cylinder (1) is fixedly connected to the end of the connecting pipe (9) away from the sewage pipe (2). An adjusting cylinder (11) is rotatably connected to the inner side wall of the filter cylinder (1). A slider (10) is fixedly connected to the upper surface of the adjusting cylinder (11). A base plate (12) is threadedly connected to the lower surface of the filter cylinder (1). A rotating rod (16) is rotatably connected to the inner side wall of the base plate (12). A cleaning plate (15) is fixedly connected to the side surface of the rotating rod (16). A fan blade (14) is fixedly connected to the end of the rotating rod (16) away from the base plate (12).

2. The auxiliary sewage discharge device for a fish fry rearing pond according to claim 1, characterized in that, The end of the slider (10) away from the regulating cylinder (11) extends to the outside of the filter cylinder (1), and the lower surface of the slider (10) is rotatably connected to the filter cylinder (1).

3. The auxiliary sewage discharge device for a fish fry rearing pond according to claim 1, characterized in that, The side surface of the cleaning plate (15) is rotatably connected to the adjusting cylinder (11), and the upper surface of the bottom plate (12) is rotatably connected to the cleaning plate (15).

4. The auxiliary sewage discharge device for a fish fry rearing pond according to claim 1, characterized in that, The fan blade (14) is located inside the connecting pipe (9), and the lower surface of the adjusting cylinder (11) is rotatably connected to the base plate (12).

5. The auxiliary sewage discharge device for a fish fry rearing pond according to claim 1, characterized in that, The rotating rod (16) is fixedly connected to a rotating block (17) at the end away from the fan blade (14), and the lower surface of the base plate (12) is rotatably connected to the rotating block (17).

6. The auxiliary sewage discharge device for a fish fry rearing pond according to claim 1, characterized in that, The lower surface of the base plate (12) is fixedly connected to a support leg (13), which is located below the rotating block (17).

7. The auxiliary sewage discharge device for a fish fry rearing pond according to claim 1, characterized in that, The lower surface of the sedimentation tank (5) is fixedly connected to a discharge hopper (19), and the end of the discharge hopper (19) away from the sedimentation tank (5) is located inside the storage tank (8).

8. The auxiliary sewage discharge device for a fish fry rearing pond according to claim 1, characterized in that, The sedimentation tank (5) is provided with a regulating valve (7) on its side surface, and the regulating valve (7) is located above the discharge hopper (19).