Multi-stage filtering fish culture device
By designing a multi-stage filtration fish farming device, which uses hydraulic push rods to drive the cleaning roller brush and nozzles for automatic cleaning, the problem of simple filtration function and cumbersome maintenance of traditional devices is solved, achieving efficient water purification and convenient filter cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI CHUANGXIN BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional fish farming equipment has a simple filtration function, which cannot effectively remove pollutants such as impurities, uneaten food, and feces from the water, leading to water quality deterioration, affecting the fish's growth environment, and the filtration equipment is cumbersome to maintain, increasing the cost of farming and the intensity of manual labor.
Design a multi-stage filtration fish farming device, which includes multiple filter frames and a cleaning box. Utilize hydraulic push rods to drive cleaning rollers and nozzles for automated cleaning, achieving multi-layer filtration and convenient filter cleaning.
It achieves multi-layered water filtration, reduces the physical exertion of manual cleaning, improves water quality cleanliness, and lowers aquaculture costs and labor intensity.
Smart Images

Figure CN224178949U_ABST
Abstract
Description
A multi-stage filtration fish farming device Technical Field
[0001] This utility model relates to the field of fish farming, specifically a multi-stage filtration fish farming device. Background Technology
[0002] Fish farming refers to the activities of raising and managing fish by humans, usually carried out in agricultural, household, commercial or scientific research settings. Fish farming involves raising and breeding fish in various waters to obtain economic, ecological and ornamental value. Through scientific management and technical means, fish farming can achieve efficient, environmentally friendly and sustainable development, providing humans with abundant aquatic products and economic benefits.
[0003] In aquaculture, water cleanliness is crucial for the growth and health of fish. Traditional fish farming equipment often only has simple filtration functions, which cannot effectively remove impurities, uneaten feed, feces, and other pollutants from the water, leading to water quality deterioration, affecting the fish's growth environment, and even causing diseases. In addition, the maintenance of traditional filtration devices is relatively cumbersome, requiring thorough manual cleaning, which increases aquaculture costs and labor intensity. Therefore, a multi-stage filtration fish farming device is proposed to solve the above problems. Summary of the Invention
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this invention provides a multi-stage filtration fish farming device. This device offers the advantages of multi-layer filtration of fish farming water, easy cleaning of the filter screen, and reduced manual labor. It solves the problem that water cleanliness is crucial for fish growth and health in aquaculture. Traditional fish farming devices often only have simple filtration functions, failing to effectively remove impurities, uneaten feed, feces, and other pollutants from the water, leading to water quality deterioration, affecting the fish's growth environment, and even causing disease. Furthermore, traditional filtration devices are cumbersome to maintain, requiring thorough manual cleaning, increasing farming costs and labor intensity.
[0006] (II) Technical Solution
[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A multi-stage filtration fish farming device includes a filter box, with pipes provided on both the left and right sides of the filter box. The filter box has multiple clearance slots inside, and filter frames are fixedly connected to the interior of each clearance slot by fasteners. Filter screens are provided inside each of the multiple filter frames. A cleaning box is fixedly connected to the outside of the filter box. Two hydraulic push rods, symmetrically arranged front and back, are fixedly connected to the top of the cleaning box. The tops of the two hydraulic push rods are fixedly connected to a mounting plate. A support frame is fixedly connected to the bottom of the mounting plate. A motor is fixedly connected to the outside of the support frame. A cleaning roller brush, rotatably connected inside the support frame, is fixedly connected to the outside of the motor's output shaft. Multiple nozzles are provided inside the cleaning box.
[0008] The beneficial effects of this utility model are:
[0009] This multi-stage filtration fish farming device has the advantages of being able to filter the water for fish farming in multiple layers, and making it easy to clean the filter screen, reducing the physical effort required for manual cleaning.
[0010] Based on the above technical solution, the present invention can be further improved as follows.
[0011] Furthermore, the filter box has a first threaded hole inside, the filter frame is fixedly connected to a fixing plate on the outside, the fixing plate is threaded with a bolt knob that is threaded to the first threaded hole, and the cleaning box has a second threaded hole inside.
[0012] The beneficial effect of adopting the above-mentioned further solution is that the position of the filter frame can be fixed, enhancing the stability of the fixation, and at the same time, it is convenient to disassemble and remove it.
[0013] Furthermore, a limiting hole is provided inside the filter frame, and a limiting rod that is slidably connected to the limiting hole is fixedly connected inside the cleaning box.
[0014] The beneficial effect of adopting the above-mentioned further solution is that it restricts the placement position of the filter frame, making the filter frame more stable and preventing it from shifting or shaking.
[0015] Furthermore, the cleaning box has a sliding groove inside, and a sliding plate that is slidably connected to the sliding groove is fixedly connected to the outside of the support frame.
[0016] The beneficial effect of adopting the above-mentioned further solution is that it can stabilize the up-and-down movement direction of the cleaning roller and provide auxiliary support for the hydraulic push rod 5.
[0017] Furthermore, a limiting groove is provided inside the cleaning box, and a water outlet is provided inside the limiting groove. A handle is fixedly connected to the top of the filter frame.
[0018] The advantage of adopting the above-mentioned further solution is that it restricts the placement position of the filter frame, making it easier to remove and place the filter frame.
[0019] Furthermore, the multiple nozzles are respectively fixed to the left and right walls of the cleaning box, and each of the multiple nozzles is connected to the water pump through a connecting pipe.
[0020] The advantage of adopting the above-mentioned further solution is that both the left and right sides of the filter frame can be rinsed and sprayed, making it convenient to clean the filter screen. Attached Figure Description
[0021] Figure 1 is a schematic diagram of the front structure of this utility model;
[0022] Figure 2 is a schematic diagram of the cleaning box structure of this utility model;
[0023] Figure 3 is a schematic diagram of the internal structure of the cleaning box of this utility model;
[0024] Figure 4 is a schematic diagram of the filter frame structure of this utility model.
[0025] In the diagram: 1. Filter box; 2. Pipeline; 3. Filter frame; 4. Cleaning box; 5. Hydraulic push rod; 6. Mounting plate; 7. Support frame; 8. Motor; 9. Cleaning roller brush; 10. Nozzle; 11. Fixing plate; 12. Bolt knob; 13. Limiting rod; 14. Slide plate; 15. Handle. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] As shown in Figures 1-4, a multi-stage filtration fish farming device includes a filter box 1. Pipes 2 are provided on both the left and right sides of the filter box 1. Multiple clearance slots are provided inside the filter box 1. Filter frames 3 are fixedly connected to the interior of each clearance slot by fasteners. Filter screens are provided inside each of the multiple filter frames 3. A cleaning box 4 is fixedly connected to the outside of the filter box 1. Two hydraulic push rods 5, symmetrically arranged front and back, are fixedly connected to the top of the cleaning box 4. The tops of the two hydraulic push rods 5 are fixedly connected to a mounting plate 6. A support frame 7 is fixedly connected to the bottom of the mounting plate 6. A motor 8 is fixedly connected to the outside of the support frame 7. A cleaning roller brush 9, rotatably connected inside the support frame 7, is fixedly connected to the outside of the output shaft of the motor 8. Multiple nozzles 10 are provided inside the cleaning box 4.
[0028] The filter box 1 has a first threaded hole inside, the filter frame 3 is fixedly connected to a fixing plate 11 on the outside, the fixing plate 11 is threadedly connected to a bolt knob 12 that is threaded to the first threaded hole, and the cleaning box 4 has a second threaded hole inside.
[0029] In this embodiment, during actual use, when filtering the water for fish farming, the filter frame 3 is usually located in the filter box 1 to filter the water entering from the pipe 2. The bolt knob 12 locks the filter frame 3 in the filter box 1. The bolt knob 12 can also be used to release the filter frame 3 and fix it in the second threaded hole of the cleaning box 4. The diameters of the first and second threaded holes are the same, which allows the bolt knob 12 to be adjusted.
[0030] The filter frame 3 has a limiting hole inside, and the cleaning box 4 has a limiting rod 13 that is slidably connected to the limiting hole inside.
[0031] In this embodiment, during actual use, after the filter frame 3 is placed in the cleaning box 4, by moving the filter frame 3 to the left, the limiting hole of the filter frame 3 can be moved to the outside of the limiting rod 13. At this time, the hole of the fixing plate 11 will be aligned with the hole of the second threaded hole. Under the joint fixation of the limiting rod 13 and the bolt knob 12, the filter frame 3 is not easy to move.
[0032] The cleaning box 4 has a groove inside, and the support frame 7 has a slide plate 14 that is slidably connected to the groove on the outside.
[0033] In this embodiment, during actual use, while the hydraulic push rod 5 drives the support frame 7 to move up and down, the slide plate 14 will also slide up and down on the outside of the support frame 7 through the slide groove. The slide groove is set parallel to the direction of the hydraulic push rod 5. With the auxiliary support of the slide plate 14, it can distribute the pressure on the hydraulic push rod 5 caused by the operation of the motor 8, and prevent the hydraulic push rod 5 from being damaged by violent vibration.
[0034] The cleaning box 4 has a limiting groove inside, and a water outlet is provided inside the limiting groove. The top of the filter frame 3 is fixedly connected to a handle 15.
[0035] In this embodiment, during actual use, the limiting groove provides space for the filter frame 3, the limiting rod 13 is located in the limiting groove, the water outlet discharges the cleaned wastewater, and the handle 15 facilitates lifting the filter frame 3 to change its position.
[0036] Multiple nozzles 10 are fixed to the left and right walls of the cleaning box 4, and all multiple nozzles 10 are connected to the water pump through connecting pipes.
[0037] In this embodiment, during actual use, the water pump supplies water through an external water tank or water source, which provides pressure for the spraying of water from the nozzle 10. The motor 8 should be a waterproof motor to prevent splashed water from damaging it. The multiple nozzles 10 on the left and right sides can all rinse and clean the filter screen inside the filter frame 3.
[0038] Working principle:
[0039] Typically, when filtering water for fish farming, the water needs to be circulated from left to right through pipes in the tank or pond. The water passes through multiple filter frames (3), each containing three to four filters with varying pore sizes from left to right, gradually decreasing in size. Subsequent filter frames (3) can contain bio-balls, activated carbon, ultrafiltration membranes, etc., forming a progressive filtration system that effectively removes large particles, fine suspended solids, dissolved pollutants, bacteria, and viruses from the water, resulting in more thorough filtration and purer water. Subsequent filter frames (3) do not require cleaning and are easily removed for replacement. The filter screen in the pre-filter frame (3)... When the filter becomes dirty and clogged after prolonged use, the water circulation can be turned off by the water valve on the pipe. The filter frame 3 can be removed by using the bolt knob 12 and handle 15. The filter frame 3 can be placed in the cleaning box 4 and pushed to the left to keep it vertically fixed under the restriction of the limit rod 13. The filter frame 3 can be further fixed by using the bolt knob 12. After being pushed to the left, the filter screen inside the filter frame 3 will come into contact with the cleaning roller brush 9 on the left side. Driven by the motor 8, the cleaning roller brush 9 will brush and clean the filter screen. At the same time, water will be sprayed through the nozzle 10 to rinse the filter screen, making the cleaning more thorough. After cleaning one side, the other side can be manually changed, or a different filter frame 3 can be manually replaced for cleaning.
[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-stage filtration fish farming device, comprising a filter box (1), characterized in that: The filter box (1) is provided with pipes (2) on both the left and right sides. The filter box (1) has a number of clearance slots inside. The clearance slots are fixedly connected to filter frames (3) by fasteners. The filter frames (3) are provided with filter screens inside. The filter box (1) is fixedly connected to a cleaning box (4) on the outside. The top of the cleaning box (4) is fixedly connected to two hydraulic push rods (5) that are symmetrical front and back. The tops of the two hydraulic push rods (5) are fixedly connected to a mounting plate (6). The bottom of the mounting plate (6) is fixedly connected to a support frame (7). The outside of the support frame (7) is fixedly connected to a motor (8). The output shaft of the motor (8) is fixedly connected to a cleaning roller brush (9) that is rotatably connected inside the support frame (7). The cleaning box (4) is provided with a number of nozzles (10).
2. The multi-stage filtration fish farming device according to claim 1, characterized in that: The filter box (1) has a first threaded hole inside. The filter frame (3) is fixedly connected to a fixing plate (11) on the outside. The fixing plate (11) is threadedly connected to a bolt knob (12) that is threaded to the first threaded hole. The cleaning box (4) has a second threaded hole inside.
3. The multi-stage filtration fish farming device according to claim 1, characterized in that: The filter frame (3) has a limiting hole inside, and the cleaning box (4) has a limiting rod (13) that is slidably connected to the limiting hole inside.
4. The multi-stage filtration fish farming device according to claim 1, characterized in that: The cleaning box (4) has a sliding groove inside, and the support frame (7) has a sliding plate (14) that is slidably connected to the sliding groove on the outside.
5. The multi-stage filtration fish farming device according to claim 1, characterized in that: The cleaning box (4) has a limiting groove inside, and the limiting groove has a water outlet inside. The top of the filter frame (3) is fixedly connected to a handle (15).
6. The multi-stage filtration fish farming device according to claim 1, characterized in that: Multiple nozzles (10) are fixed to the left and right walls of the cleaning box (4), and all multiple nozzles (10) are connected to the water pump through connecting pipes.