Water filtering device for aquaculture
By designing a water filtration device with an arc-shaped filter screen and an impeller, and using brushes and cleaning teeth to clean the filter screen, the problem of clogging in traditional aquaculture filtration devices is solved, achieving efficient and low-cost water filtration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGCHUN AQUATIC PROD QUALITY & SAFETY TESTING CENT (CHANGCHUN FISHERIES RES INST CHANGCHUN AQUATIC TECH PROMOTION STATION CHANGCHUN SOURCE WATER QUALITY TESTING CENT)
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional aquaculture water filtration devices are prone to clogging, leading to decreased filtration efficiency, increased labor intensity, and higher aquaculture costs.
Design a water filtration device with an arc-shaped filter screen and an impeller. The impeller drives a brush to clean the filter screen, and the inclined plate and cleaning teeth clean foreign objects on the brush. Impurities are collected in the collection chamber to prevent the filter screen from clogging.
It achieves continuous and efficient filtration of the filter screen, reduces the frequency of manual cleaning, and lowers labor intensity and breeding costs.
Smart Images

Figure CN224167004U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filtration device technology, specifically a water filtration device for aquaculture. Background Technology
[0002] In the aquaculture industry, water quality directly affects the healthy growth of aquatic products, disease control, and the yield and quality of aquaculture. High-quality water sources are the foundation of successful aquaculture. Once the water is polluted, impurities, microorganisms, heavy metals, and other harmful substances in the water will not only affect the physiological functions of aquatic organisms but may also lead to disease outbreaks, causing huge economic losses.
[0003] Currently, common aquaculture water filtration methods have many shortcomings. Although traditional filter screens can intercept some larger particles of impurities, they are prone to clogging. Once the filter screen is clogged, the filtration efficiency drops significantly, requiring frequent manual cleaning or replacement, which increases labor intensity and aquaculture costs. Utility Model Content
[0004] In view of the shortcomings of the existing technology, this utility model provides a water filtration device for aquaculture.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A water filtration device for aquaculture includes a shell, an inlet hopper, and an impeller; the inlet hopper is provided on one side of the top of the shell, and the impeller is installed in the middle of the inner side of the shell. The water inlet path of the inlet hopper is located to the left of the central axis of the impeller, and the water to be filtered added to the inlet hopper drives the impeller to rotate counterclockwise.
[0007] Inside the housing, below the impeller, a filter screen is installed. The filter screen has an arc-shaped structure and is arranged concentrically with the impeller. A brush is installed at the end of the impeller's rotating plate, and the brush is in contact with the surface of the filter screen.
[0008] Preferably, an inclined plate is installed on one side inside the housing, and a cleaning tooth is provided at one end of the inclined plate, with the cleaning tooth located on the rotation path of the brush.
[0009] Preferably, the housing has a collection chamber for collecting foreign objects on one side of the top of the filter screen, and the inner wall of the collection chamber is set as an arc-shaped part at the connection between it and the filter screen.
[0010] Preferably, the bottom end of the housing is provided with a guide cover inside the housing to guide the water to be filtered toward the impeller, and the width of the opening at the bottom end of the guide cover is smaller than the width of the water inlet hopper.
[0011] Preferably, the sum of the diameter of the impeller's rotating plate and the length of the brush is greater than the inner diameter of the filter screen, and the diameter of the brush is smaller than the diameter of the filter screen's pores.
[0012] Preferably, the spacing between the cleaning teeth and the spacing between the brush bristles are staggered, and the ends of the cleaning teeth are provided with U-shaped hooks that open to the lower right.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. The water inlet hopper is located on one side of the top of the shell and the water inlet path is on the left side of the impeller's central axis. In conjunction with the guide cover at the bottom of the shell, the opening width of the guide cover at the bottom is smaller than that of the water inlet hopper, which causes the water flow to generate an eccentric force and accelerate, giving the impeller a greater impact force, ensuring that the impeller rotates stably and efficiently, and providing continuous power for the subsequent filtration process.
[0015] 2. The brush at the end of the impeller rotating plate is in close contact with the filter screen, and the diameter of the brush is smaller than the diameter of the filter screen holes. The bristles can penetrate deep into the filter screen holes, not only cleaning the impurities on the surface of the filter screen, but also cleaning the filter screen holes, effectively preventing the filter screen from clogging and ensuring a good filtration effect.
[0016] 3. The spacing between the cleaning teeth at one end of the inclined plate is staggered with the spacing between the brush bristles, and a U-shaped hook is provided at the end. After the brush cleans the filter screen, it can effectively clean the foreign objects on the brush, keep the brush clean, and maintain its good working condition.
[0017] 4. The arc-shaped design at the connection between the inner wall of the collection chamber and the filter screen facilitates the entry of impurities cleaned from the filter screen and brush into the collection chamber under the action of gravity, making it easy to collect and process them centrally and avoiding secondary pollution from impurities. Attached Figure Description
[0018] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:
[0019] Figure 1 This is a three-dimensional structural schematic diagram of the water filtration device for aquaculture according to this utility model;
[0020] Figure 2 This is a cross-sectional view of the water filtration device for aquaculture according to this utility model;
[0021] Figure 3 This is a schematic diagram of the inclined plate installation structure of the water filtration device for aquaculture according to this utility model;
[0022] Figure 4 This utility model relates to a water filtration device for aquaculture. Figure 3 A magnified schematic diagram of the central part of the structure.
[0023] The diagram shows the following labels: 1. Shell; 2. Inlet hopper; 3. Impeller; 4. Filter screen; 5. Brush; 6. Inclined plate; 7. Cleaning teeth; 8. Arc-shaped part; 9. Collection chamber. Detailed Implementation
[0024] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0025] Example
[0026] like Figure 1-4 As shown, a water filtration device for aquaculture includes a shell 1, a water inlet hopper 2, and an impeller 3;
[0027] The water to be filtered enters the device through the inlet hopper 2. Since the inlet hopper 2 is located on one side of the top of the shell 1 and the water inlet path is on the left side of the central axis of the impeller 3, the water flow will generate an eccentric force on the impeller 3 when it enters, thereby driving the impeller 3 to rotate counterclockwise. At the same time, the special design of the guide cover at the bottom of the shell 1, that is, the width of its bottom opening is smaller than the width of the inlet hopper 2, increases the flow velocity of the water to be filtered, thereby providing a greater impact force to the impeller 3, ensuring that the impeller 3 can rotate stably and efficiently.
[0028] The impeller 3 rotates continuously under the drive of the water flow, and the brush 5 installed at the end of its rotating plate also rotates synchronously. Because the brush 5 is in close contact with the surface of the filter screen 4, and the diameter of the brush 5 is smaller than the diameter of the filter hole of the filter screen 4, the bristles can penetrate deep into the filter screen hole. Therefore, during the rotation, the brush 5 can not only sweep away the impurities intercepted on the surface of the filter screen 4, but also clean the filter screen hole of the filter screen 4, effectively preventing the filter screen 4 from clogging and ensuring its good filtration effect.
[0029] When the brush 5 rotates with the impeller 3 to the position of the cleaning tooth 7 at one end of the inclined plate 6, the cleaning tooth 7 will clean the brush 5 because the tooth spacing of the cleaning tooth 7 is staggered with the bristle spacing of the brush 5, and the end is provided with a U-shaped hook with an opening facing downward to the right. If the brush 5 has foreign objects after cleaning the filter screen 4, the cleaning tooth 7 can brush off the foreign objects, and the U-shaped hook can further penetrate into the bristles to better remove foreign objects, ensuring the cleanliness of the brush 5 and keeping it in good working condition at all times.
[0030] Impurities brushed off the filter screen 4 by the brush 5 and foreign objects cleaned off the brush 5 by the cleaning teeth 7 slide down one end of the filter screen 4 under the action of gravity. Since the connection between the inner wall of the collection chamber 9 and the filter screen 4 is set as an arc-shaped part 8, this special structural design facilitates the entry of impurities into the collection chamber 9, and the impurities eventually accumulate in the collection chamber 9. The clean water filtered by the filter screen 4 flows out from the bottom of the device, completing the entire water filtration process.
[0031] Shell 1: As the main structure of the device, it provides support and protection for the internal components. The bottom is equipped with a guide cover to guide the water to be filtered to the impeller 3. The opening width of the bottom of the guide cover is smaller than the width of the water inlet 2, which increases the flow rate of the water to be filtered and can give the impeller 3 a greater impact force to ensure the rotation of the impeller 3.
[0032] Water inlet 2: Located on one side of the top of the shell 1, it is the inlet for the water to be filtered. Its water inlet path is on the left side of the central axis of the impeller 3. The added water to be filtered can drive the impeller 3 to rotate counterclockwise.
[0033] Impeller 3: Installed in the middle of the inner side of the housing 1, with a brush 5 at the end of the rotating plate. The sum of the diameter of the rotating plate and the length of the brush 5 is greater than the inner diameter of the filter screen 4, and it rotates under the drive of water flow.
[0034] Filter screen 4: Installed below impeller 3, it has an arc-shaped structure and is arranged concentrically with impeller 3 to intercept impurities in the water;
[0035] Brush 5: It is attached to the surface of filter screen 4 and rotates with impeller 3 to clean filter screen 4. Its diameter is smaller than the diameter of filter hole of filter screen 4. The bristles of brush 5 can also clean the filter hole of filter screen 4 to ensure the filtration effect of filter screen 4.
[0036] Inclined plate 6: Installed inside the housing 1 on one side, with cleaning teeth 7 at one end for cleaning impurities on the brush 5.
[0037] Cleaning teeth 7: Located on the rotation path of brush 5, the spacing between the teeth is staggered with the spacing between the bristles of brush 5. The end is provided with a U-shaped hook with an opening to the lower right. After brush 5 cleans the filter screen 4, if there are foreign objects on brush 5, the cleaning teeth 7 will brush off the foreign objects to ensure the cleanliness of brush 5. The U-shaped hook can better remove foreign objects.
[0038] Arc-shaped part 8: Located at the connection between the inner wall of the collection chamber 9 and the filter screen 4, it facilitates the entry of impurities into the collection chamber 9.
[0039] Collection chamber 9: Located on one side of the top of the filter screen 4 inside the housing 1, used to collect the filtered foreign objects.
[0040] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A water filtration device for aquaculture, characterized in that: It includes a shell (1), an inlet hopper (2), and an impeller (3); A water inlet hopper (2) is provided on one side of the top of the housing (1), and an impeller (3) is installed in the middle of the inner side of the housing (1). The water inlet path of the water inlet hopper (2) is located to the left of the central axis of the impeller (3). The water to be filtered added by the water inlet hopper (2) drives the impeller (3) to rotate counterclockwise. Inside the housing (1), a filter screen (4) is installed below the impeller (3). The filter screen (4) has an arc-shaped structure and is arranged concentrically with the impeller (3). A brush (5) is installed at the end of the rotating plate of the impeller (3), and the brush (5) is attached to the surface of the filter screen (4).
2. The water filtration device for aquaculture according to claim 1, characterized in that: An inclined plate (6) is installed on one side inside the housing (1), and a cleaning tooth (7) is provided at one end of the inclined plate (6). The cleaning tooth (7) is located on the rotation path of the brush (5).
3. A water filtration device for aquaculture according to claim 2, characterized in that: The housing (1) is provided with a collection cavity (9) for collecting foreign objects on one side of the top of the filter screen (4), and the inner wall of the collection cavity (9) is provided with an arc-shaped part (8) at the connection between it and the filter screen (4).
4. A water filtration device for aquaculture according to claim 3, characterized in that: The bottom end of the housing (1) is provided with a guide cover inside the housing (1) to guide the water to be filtered to the impeller (3), and the width of the opening at the bottom end of the guide cover is smaller than the width of the water inlet (2).
5. A water filtration device for aquaculture according to claim 4, characterized in that: The sum of the diameter of the rotating plate of the impeller (3) and the length of the brush (5) is greater than the inner diameter of the filter screen (4), and the diameter of the brush (5) is smaller than the diameter of the filter hole of the filter screen (4).
6. A water filtration device for aquaculture according to claim 5, characterized in that: The spacing between the cleaning teeth (7) and the spacing between the bristles of the brush (5) are arranged alternately, and the ends of the cleaning teeth (7) are provided with U-shaped hooks that open to the lower right.