Water circulating and filtering device for aquaculture of fish fries

By designing a slidable filter box and cleaning components, the problem of clogging caused by impurities in the water circulation filter device was solved, achieving efficient water purification and stable water flow, and ensuring a clean environment for aquatic fish fry farming.

CN224178954UActive Publication Date: 2026-05-01NINGDE WULIANG TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGDE WULIANG TECHNOLOGY CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

In existing water circulation filtration devices, impurities accumulate over long periods of use, causing the filter screen or media to become clogged, increasing water flow resistance, reducing filtration efficiency, and allowing impurities to penetrate into the aquaculture water, thus affecting water quality.

Method used

A water circulation filtration device for aquaculture fry farming was designed, comprising a slidably connected filter box and a cleaning component. The filter box has multiple filter layers, and is equipped with a cleaning component and a transmission component. Impurities are automatically cleaned and collected through scrapers and cleaning rollers to avoid clogging.

Benefits of technology

It effectively avoids clogging of the filter device, maintains water flow rate and filtration efficiency, ensures water quality stability, and prevents impurities from entering the aquaculture water.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of water circulation filtration, and particularly relates to a water circulation filtration device for aquaculture of fish fries, which comprises an aquaculture box. A groove is formed in one side of the breeding box; a filter box is slidably connected to the interior of the groove; a first filter layer, a second filter layer and a third filter layer are arranged in the filter box; a trapezoidal filter plate is fixedly connected to the interior of the breeding box; in order to overcome the defects in the prior art, the water circulation filtering device solves the problems that in long-time water circulation filtering of the water circulation filtering device, a large number of impurities can be accumulated on the filtering device, a filtering net or a filtering medium can be blocked due to accumulation of the impurities, the resistance of water flow passing through the filtering device is increased, and the filtering effect is poor. When the impurities are accumulated to a certain degree, part of the impurities can not be effectively intercepted and directly penetrate through the filtering device to enter the aquaculture water body, and the water quality is influenced.
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Description

Technical Field

[0001] This utility model belongs to the field of water circulation filtration technology, specifically a water circulation filtration device for aquaculture fish fry farming. Background Technology

[0002] Water circulation filtration devices are key equipment for realizing water resource recycling and water quality purification in aquaculture. Water circulation filtration devices are usually composed of physical filtration units, biological filtration units, chemical treatment units (optional), and disinfection units. Their working principle is to effectively remove solid waste, harmful substances, and excess nutrients from the water through a series of fine physical, chemical, and biological processes.

[0003] In existing technologies, during long-term water circulation filtration, a large amount of impurities may accumulate on the filtration device. The accumulation of impurities can clog the filter screen or filter media, resulting in increased resistance to water flow through the filtration device, slower water flow speed, and reduced filtration efficiency. When impurities accumulate to a certain extent, some impurities may not be effectively intercepted and may directly penetrate the filtration device and enter the aquaculture water, affecting water quality.

[0004] Therefore, this utility model provides a water circulation and filtration device for aquaculture fish fry farming. Utility Model Content

[0005] To address the shortcomings of existing technologies and solve the problem that a large amount of impurities can accumulate on water circulation filtration devices during long-term water circulation filtration, the accumulation of impurities can clog the filter screen or filter media, leading to increased resistance to water flow through the filtration device, slower water flow speed, and thus reduced filtration efficiency. When impurities accumulate to a certain extent, some impurities may not be effectively intercepted and may directly penetrate the filtration device and enter the aquaculture water, affecting water quality.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A water circulation filtration device for aquaculture fry farming, comprising a rearing box; a groove is provided on one side of the rearing box; a filter box is slidably connected inside the groove; the filter box contains a first filter layer, a second filter layer, and a third filter layer; a trapezoidal filter plate is fixedly connected inside the rearing box; discharge ports are provided on both sides of the filter box; a pair of water suction pipes are fixedly connected inside the rearing box; a detachable water inlet pipe is provided on one side of the filter box; a cleaning component is provided at the top of the rearing box; the cleaning component is used to clean the trapezoidal filter plate.

[0007] Preferably, the cleaning assembly includes a first connecting plate and a power unit; the first connecting plate is slidably connected to the top of the trapezoidal filter plate; scrapers are fixedly connected to both sides of the first connecting plate; and a pair of scrapers are slidably connected to a pair of discharge ports.

[0008] Preferably, the power unit includes a U-shaped frame; the U-shaped frame is fixed to the top of the breeding box; a first motor is fixed to one side of the U-shaped frame; a first lead screw is provided at the output end of the first motor; one end of the first lead screw passes through the U-shaped frame; and the first connecting plate is connected to the first lead screw through a lead screw and nut pair.

[0009] Preferably, a collection box is fixedly connected to both sides of the breeding box; one side of each pair of collection boxes is connected to a discharge port; filter holes are opened inside each pair of collection boxes; a conical plate is fixedly connected to the bottom of each pair of collection boxes; the conical plate extends into the filter box; a rotating rod is rotatably connected inside each pair of collection boxes, and one end of the rotating rod extends through the collection box; a cleaning roller is fixedly connected to each pair of rotating rods; a transmission component is provided on one side of the breeding box; the transmission component is used to drive the cleaning roller to rotate.

[0010] Preferably, the transmission component includes gears; a pair of gears are respectively fixedly connected to one end of the rotating rod; a through groove is opened on one side of the breeding box; an L-shaped plate is fixedly connected to one side of the first connecting plate; a pair of toothed plates are fixedly connected to the bottom end of the L-shaped plate; the pair of toothed plates are respectively slidably connected in the through groove; the toothed plates and gears mesh with each other.

[0011] Preferably, a handle is fixed to one side of the filter box.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The aquaculture fry water circulation filtration device of this utility model is provided by setting up a breeding box, with a groove opened on one side of the breeding box, and a filter box that can be slidably connected in the groove. The filter box can be pulled out of the breeding box for maintenance and cleaning. The filter box is provided with a first filter layer, a second filter layer and a third filter layer to filter the water source multiple times. The trapezoidal filter plate set inside the breeding box can perform the first filtration of the water source before it enters the filtration box, filtering out larger impurities in the water source. During the filtration process, the trapezoidal filter plate can be cleaned by a cleaning component to avoid clogging of the trapezoidal filter plate and failure to filter the water source normally.

[0014] 2. The aquatic fry aquaculture water circulation filtration device of this utility model is provided by setting collection boxes on both sides of the breeding tank. The collection boxes are connected to the discharge port. The scraper can push impurities into the collection box through the discharge port for collection. When the scraper enters the collection box, the cleaning roller driven by the transmission component can clean the surface of the scraper, so that the impurities on the scraper also fall into the collection box for collection. The filter holes allow water to enter the conical plate from the collection box and flow into the filter box for secondary filtration. Attached Figure Description

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

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 yes Figure 1 Enlarged view of A in the middle;

[0018] Figure 3 This is the front view of this utility model;

[0019] Figure 4 This is a partial sectional view of the present invention;

[0020] Figure 5 This is a partial view of the present invention;

[0021] In the diagram: 1. Breeding box; 2. Groove; 3. Filter box; 4. First filter layer; 5. Second filter layer; 6. Third filter layer; 7. Trapezoidal filter plate; 8. Discharge port; 9. Water pump pipe; 10. Detachable water inlet pipe; 11. First connecting plate; 12. Scraper; 13. U-shaped frame; 14. First motor; 15. First lead screw; 16. Collection box; 17. Filter hole; 18. Conical plate; 19. Rotating rod; 20. Cleaning roller; 21. Gear; 22. Through groove; 23. L-shaped plate; 24. Toothed plate; 25. Handle. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 5As shown in the embodiment of this utility model, a water circulation filtration device for aquaculture fry includes an aquaculture tank 1; a groove 2 is provided on one side of the aquaculture tank 1; a filter box 3 is slidably connected inside the groove 2; the filter box 3 has a first filter layer 4, a second filter layer 5, and a third filter layer 6 inside; a trapezoidal filter plate 7 is fixedly connected inside the aquaculture tank 1; discharge ports 8 are provided on both sides of the filter box 3; a pair of water suction pipes 9 are fixedly connected inside the aquaculture tank 1; a detachable water inlet pipe 10 is provided on one side of the filter box 3; a cleaning component is provided at the top of the aquaculture tank 1; the cleaning component is used to clean the trapezoidal filter plate 7. At that time, by setting up a breeding box 1, a groove 2 is opened on one side of the breeding box 1, and a filter box 3 that can be slidably connected is set in the groove 2. The filter box 3 can be pulled out from the breeding box 1 for maintenance and cleaning. The filter box 3 is equipped with a first filter layer 4, a second filter layer 5 and a third filter layer 6, which can filter the water source multiple times. The trapezoidal filter plate 7 set inside the breeding box 1 can perform the first filtration of the water source before it enters the filter box 3, filtering out larger impurities in the water source. During the filtration process, the trapezoidal filter plate 7 can be cleaned by the cleaning component to avoid clogging of the trapezoidal filter plate 7 and failure to filter the water source normally.

[0024] The cleaning assembly includes a first connecting plate 11 and a power unit; the first connecting plate 11 is slidably connected to the top of the trapezoidal filter plate 7; scrapers 12 are fixedly connected to both sides of the first connecting plate 11; a pair of scrapers 12 are slidably connected to a pair of discharge ports 8 respectively. During operation, by setting the first connecting plate 11 at the top of the trapezoidal filter plate 7, fixing scrapers 12 to both sides of the first connecting plate 11, and driving it through the power unit, the first connecting plate 11 can move at the top of the trapezoidal filter plate 7, and the scrapers 12 push the impurities to the discharge ports 8 and discharge them from the trapezoidal filter plate 7.

[0025] The power unit includes a U-shaped frame 13; the U-shaped frame 13 is fixed to the top of the breeding box 1; a first motor 14 is fixed to one side of the U-shaped frame 13; a first lead screw 15 is provided at the output end of the first motor 14; one end of the first lead screw 15 passes through the U-shaped frame 13; the first connecting plate 11 is connected to the first lead screw 15 through a lead screw nut pair. During operation, by fixing the U-shaped frame 13 to the top of the breeding box 1, the U-shaped frame 13 can support the first motor 14. When the first lead screw 15 is set at the output end of the first motor 14, the first connecting plate 11 will run on the first lead screw 15 when the first lead screw 15 rotates, forming a reciprocating motion to drive a pair of scrapers 12 to clean the trapezoidal filter plates 7.

[0026] A collection box 16 is fixedly connected to both sides of the breeding box 1; one side of each pair of collection boxes 16 is connected to a discharge port 8; each pair of collection boxes 16 has a filter hole 17 inside; a conical plate 18 is fixedly connected to the bottom of each pair of collection boxes 16; the conical plate 18 passes through the filter box 3; a rotating rod 19 is rotatably connected inside each pair of collection boxes 16, and one end of each rotating rod 19 passes through the collection box 16; a cleaning roller 20 is fixedly connected to each pair of rotating rods 19; a transmission component is provided on one side of the breeding box 1; the transmission component is used to drive the cleaning roller 20. When the sweeping roller 20 rotates, during operation, collection boxes 16 are set on both sides of the breeding box 1. The collection boxes 16 are connected to the discharge port 8. The scraper 12 can push impurities into the collection box 16 through the discharge port 8 for collection. When the scraper 12 enters the collection box 16, the sweeping roller 20 driven by the transmission component can clean the surface of the scraper 12, so that the impurities on the scraper 12 also fall into the collection box 16 for collection. The filter hole 17 allows water to enter the conical plate 18 from the collection box 16 and flow into the filter box 3 for secondary filtration.

[0027] The transmission component includes gears 21; a pair of gears 21 are respectively fixed to one end of the rotating rod 19; a through groove 22 is opened on one side of the breeding box 1; an L-shaped plate 23 is fixed to one side of the first connecting plate 11; a pair of toothed plates 24 are fixed to the bottom end of the L-shaped plate 23; the pair of toothed plates 24 are respectively slidably connected in the through groove 22; the toothed plates 24 and gears 21 mesh with each other. During operation, by fixing gears 21 to one end of the rotating rod 19, when the first motor 14 drives the first connecting plate 11 to move, the toothed plates 24 move accordingly and contact the gears 21, thereby causing the rotating rod 19 to drive the cleaning roller to clean the surface of the scraper 12 and clean the debris on the surface of the scraper 12 into the collection box 16.

[0028] A handle 25 is fixedly attached to one side of the filter box 3. During operation, by fixing the handle 25 to one side of the filter box 3, it is convenient for the staff to pull the filter box 3 out of the breeding box 1 and to clean the filter box 3.

[0029] Working principle: A breeding box 1 is set up, with a groove 2 on one side. A filter box 3, which can be slidably connected, is installed in the groove 2. The filter box 3 can be pulled out of the breeding box 1 for maintenance and cleaning. The filter box 3 contains a first filter layer 4, a second filter layer 5, and a third filter layer 6, which can filter the water source multiple times. The trapezoidal filter plate 7 installed inside the breeding box 1 performs a first filtration of the water source before it enters the filter box 3, filtering out larger impurities. During the filtration process, the trapezoidal filter plate 7 can be cleaned using a cleaning component. To prevent the trapezoidal filter plate 7 from clogging and hindering proper water filtration, a first connecting plate 11 is installed at the top of the trapezoidal filter plate 7. Scrapers 12 are fixed to both sides of the first connecting plate 11. Driven by a power unit, the first connecting plate 11 can move at the top of the trapezoidal filter plate 7. The scrapers 12 push impurities to the discharge port 8 and discharge them from the trapezoidal filter plate 7. A U-shaped frame 13 is fixed to the top of the breeding tank 1, supporting the first motor 14. A first lead screw 15 is installed at the output end of the first motor 14. When the first lead screw 15 rotates... When in motion, the first connecting plate 11 runs on the first lead screw 15, forming a reciprocating motion to drive the cleaning work of a pair of scrapers 12 against the trapezoidal filter plates 7. By setting collection boxes 16 on both sides of the breeding box 1 and connecting the collection boxes 16 to the discharge port 8, the scrapers 12 can push impurities into the collection boxes 16 for collection through the discharge port 8. When the scrapers 12 enter the collection box 16, the cleaning roller 20 driven by the transmission component can clean the surface of the scrapers 12, causing the impurities on the scrapers 12 to fall into the collection box 16 for collection. The filter holes 17 can... Water is drawn from the collection box 16 into the conical plate 18 and flows into the filter box 3 for further filtration. Gears 21 are fixed to one end of the rotating rod 19. When the first motor 14 drives the first connecting plate 11 to move, the toothed plate 24 moves accordingly and contacts the gears 21. This causes the rotating rod 19 to drive the cleaning roller to clean the surface of the scraper 12, removing debris from the scraper 12 and transferring it into the collection box 16. A handle 25 is fixed to one side of the filter box 3, making it easy for staff to pull the filter box 3 out of the breeding box 1 for cleaning.

[0030] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An apparatus for filtering and recycling water used in the culture of aquatic fish larvae, characterized by: The system includes a breeding box; a groove is provided on one side of the breeding box; a filter box is slidably connected inside the groove; the filter box has a first filter layer, a second filter layer, and a third filter layer inside; a trapezoidal filter plate is fixedly connected inside the breeding box; discharge ports are provided on both sides of the filter box; a pair of water suction pipes are fixedly connected inside the breeding box; a detachable water inlet pipe is provided on one side of the filter box; a cleaning component is provided at the top of the breeding box; the cleaning component is used to clean the trapezoidal filter plate.

2. The aquatic fish fry aquaculture water circulation filtration device according to claim 1, characterized in that: The cleaning assembly includes a first connecting plate and a power unit; the first connecting plate is slidably connected to the top of the trapezoidal filter plate; scrapers are fixed to both sides of the first connecting plate; a pair of scrapers are slidably connected to a pair of discharge ports respectively.

3. The water circulation filtering device for aquaculture of fish fry according to claim 2, characterized in that: The power unit includes a U-shaped frame; the U-shaped frame is fixed to the top of the breeding box; a first motor is fixed to one side of the U-shaped frame; a first lead screw is provided at the output end of the first motor; one end of the first lead screw passes through the U-shaped frame; and the first connecting plate is connected to the first lead screw through a lead screw and nut pair.

4. The aquatic fish fry aquaculture water circulation filtration device according to claim 3, characterized in that: Both sides of the breeding box are fixedly connected to a collection box; one side of each pair of collection boxes is connected to a discharge port; each pair of collection boxes has a filter hole inside; a conical plate is fixedly connected to the bottom of each pair of collection boxes; the conical plate extends into the filter box; a rotating rod is rotatably connected inside each pair of collection boxes, and one end of the rotating rod extends through the collection box; a cleaning roller is fixedly connected to each pair of rotating rods; a transmission component is provided on one side of the breeding box; the transmission component is used to drive the cleaning roller to rotate.

5. The water circulation filtering device for aquaculture of fish fry according to claim 4, characterized in that: The transmission component includes gears; a pair of gears are respectively fixed to one end of the rotating rod; a through groove is opened on one side of the breeding box; an L-shaped plate is fixed to one side of the first connecting plate; a pair of toothed plates are fixed to the bottom end of the L-shaped plate; the pair of toothed plates are respectively slidably connected in the through groove; the toothed plates and gears mesh with each other.

6. The water circulation filtering device for aquaculture of fish fry according to claim 5, characterized in that: A handle is fixed to one side of the filter box.