Fish manure rapid separating and filtering device
By designing a rapid fish manure filtration device, which utilizes a combination of net rings, filter plates, and net bags, the problem of time-consuming and labor-intensive cleaning of fish manure and residual food in aquaculture is solved, improving cleaning efficiency, protecting the health of fish fry, and reducing operational difficulty and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SOUTHWEAT UNIV OF SCI & TECH
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-17
AI Technical Summary
The current work of cleaning up fish feces and leftover food in aquaculture is time-consuming and labor-intensive, and the large-scale equipment is complex and costly, making it difficult to promote in small-scale farming and family users.
A rapid fish waste filtration device was designed, comprising a mesh ring with a support structure, a filter mesh, and a net bag. Through the combination of strip and circular filter holes, it achieves layered filtration and centralized collection of fish waste and residual food. Combined with an adjustable handheld component and an air-suction component, it improves cleaning efficiency.
It achieves rapid and effective separation and filtration of fish feces and residual edibles, protects the health of fish fry, reduces cleaning difficulty and cost, and improves the ease of operation for small-scale aquaculture and family users.
Smart Images

Figure CN224124999U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aquaculture technology, specifically to a rapid fish manure filtration device. Background Technology
[0002] In modern aquaculture, especially in the breeding of fry and fingerlings, the cleaning of fish feces and residual food is time-consuming and labor-intensive. This problem has seriously restricted the sustainable and healthy development of aquaculture and has become a key factor affecting its production safety. Currently, most methods to solve the problem of feces and residual food are physical treatment methods (sedimentation tanks and solid-liquid separation, mechanical filtration), microbial degradation, recirculating aquaculture, and flowing water aquaculture.
[0003] Existing equipment for treating fish waste is mostly large-scale, with a bulky and complex structure. There are no designs for small-scale or home-based aquaculture. Large-scale equipment involves numerous components such as inlet pipes, outlet pipes, multiple connecting pipes, bends, and filter units. Connecting and adjusting these components requires professional knowledge and skills. Small-scale farmers and home-based users lack the professional technical knowledge to master the installation, operation, and maintenance of such complex devices. Moreover, the complex structure means high costs. Whether it is the one-time investment in purchasing the equipment or the subsequent maintenance and replacement of parts, these costs are difficult for small-scale farmers and home-based users to bear. Utility Model Content
[0004] One object of this invention is to solve at least the aforementioned problems and / or defects, and to provide at least the advantages described below.
[0005] To achieve these objectives and other advantages according to the present invention, a rapid fish waste filtration device is provided, comprising: a mesh ring with a support structure, wherein a connecting component is provided on its side, and further comprising:
[0006] The mesh ring is provided with an open rectangular groove;
[0007] The filter screen has two sets of strip-shaped filter holes symmetrically opened in the upper half, and circular filter holes distributed in a matrix in the lower half of the filter screen. Rectangular sliding plates are provided on both sides and the front end of the filter screen, and the rectangular sliding groove is adapted to the size of the rectangular sliding plate to achieve sliding connection.
[0008] The net bag is fixed to the net ring by a supporting structure;
[0009] An adjustable multi-section handheld assembly that is detachably connected to a wire mesh via connecting parts.
[0010] Preferably, the bottom of the filter screen is provided with a protruding anti-slip strip.
[0011] Preferably, the connecting component has a hollow structure, and the hollow structure is provided with an internal thread Ⅲ.
[0012] Preferably, the adjustable multi-section handheld assembly includes the following structure:
[0013] The handle I has an external thread I at its front end, which is threaded to an internal thread III. The handle I also has an internal thread I at its rear end.
[0014] Handle II has an external thread II at its front end, which is threadedly connected to internal thread I. Handle II also has an internal thread II at its rear end and is equipped with an anti-slip sleeve.
[0015] The handle Ⅲ has an external thread Ⅲ at its front end, which is threadedly connected to the internal thread Ⅱ. The tail end of the handle Ⅲ is fitted with a handle end cap.
[0016] Preferably, an air-suction component is added to the filter screen, and the structure of the air-suction component includes:
[0017] The suction head is held in the hand; it has a flexible hollow structure and a through hole at the front end.
[0018] The suction tube is connected to the through hole at its rear end. The tube at the front end of the suction tube extends into the mesh bag through the through hole of the filter screen. A filter plug is provided at the front end of the suction tube. The size of the filter plug is smaller than the size of the circular filter hole.
[0019] The outlet pipe has one end connected to the middle and rear section of the suction pipe;
[0020] The adjustable multi-section handheld assembly is rotatably fitted with a clamping limit block, and the water suction pipe is engaged with the clamping limit block.
[0021] This utility model has at least the following beneficial effects:
[0022] This device, through the cooperation of structures such as net rings, filter screens, and net bags, facilitates the convenient and rapid separation and collection of feces and residual food, thereby improving the filtration effect and efficiency. By adding detachable filter screens to the net rings, the fishing net is divided into upper and lower layers. Fish feces and residual food in the fishpond are filtered through the upper layer's strip and round filter holes in combination without harming the fish fry. The lower layer's net bag then collects the filtered feces and residual food, thus centrally processing the collected fish feces and residual food and improving the effectiveness and efficiency of cleaning fish feces and residual food in the fishpond.
[0023] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 This is an enlarged cross-sectional schematic diagram of the mesh ring of this utility model;
[0026] Figure 3 This is a top view of the mesh ring of this utility model;
[0027] Figure 4 This is a schematic diagram of the disassembled adjustable multi-section handheld component of this utility model;
[0028] Figure 5 A schematic diagram of the overall structure of this utility model after adding the air-suction component;
[0029] The markings in the diagram are: 1. Mesh ring, 11. Support structure, 12. Rectangular slide, 2. Connecting component, 21. Internal thread III, 3. Filter screen, 31. Strip filter hole, 32. Circular filter hole, 33. Rectangular slide, 34. Anti-slip strip, 4. Mesh bag, 5. Adjustable multi-section handheld assembly, 51. Clamping limit block, 6. Handle I, 61. External thread I, 62. Internal thread I, 7. Handle II, 71. External thread II, 72. Internal thread II, 73. Anti-slip sleeve, 8. Handle III, 81. External thread III, 82. Handle end cap, 9. Suction assembly, 91. Handheld suction head, 92. Suction tube, 93. Water outlet tube. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.
[0031] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.
[0032] It should be noted that in the description of this utility model, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0034] Furthermore, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0035] The following is a detailed description of this novel experimental device with reference to the accompanying drawings:
[0036] Figure 1-5 This invention discloses a rapid fish waste filtration device, comprising: a mesh ring 1 with a support structure 11, a connecting component 2 disposed on its side, and further comprising:
[0037] The mesh ring 1 is provided with an open rectangular groove 12;
[0038] The filter screen 3 has two sets of strip-shaped filter holes 31 symmetrically opened in the upper half, and circular filter holes 32 distributed in a matrix in the lower half of the filter screen 3. Rectangular sliding plates 33 are provided on both sides and the front end of the filter screen 3, and the rectangular sliding groove 12 is adapted to the size of the rectangular sliding plate 33 to achieve sliding connection.
[0039] The net bag 4 is fixed to the net ring 1 by the support structure 11;
[0040] The adjustable multi-section handheld assembly 5 is detachably connected to the mesh ring 1 via the connecting component 2.
[0041] Working principle:
[0042] Before using the device, the operator first aligns the filter screen 3 with the opening of the rectangular groove 12 of the mesh ring 1, and then pushes the rectangular sliding pieces 33 on both sides horizontally inward along the direction of the rectangular groove 12 until the front rectangular sliding piece 33 also gets into the rectangular groove 12, thus installing the filter screen 3 (specifically, the strip filter hole 31 is located at the top and the circular filter hole 32 is located at the middle and lower ends). Then, the adjustable multi-section handheld component 5 is spliced with the connecting part 2 of the mesh ring 1 to complete the assembly work before using the device. The operator can hold the device and use the support structure 11 on the mesh ring 1 to make the net bag 4 move back and forth at the bottom of the pool.
[0043] In practical use, taking sturgeon fry as an example, when using this rapid fish waste separation device, the first part of the filter screen 3 to come into contact with the feces and residual food is the strip filter hole 31. This allows the accumulated feces and residual food to pass through the strip filter hole 31 in large quantities and quickly into the net bag 4 below for collection. At this time, the circular filter hole 32 located at the middle and lower end will collect the residual food and feces that are agitated and suspended in the water due to water flow caused by the use of the device, as well as the residual food and feces that were not cleaned by the strip filter hole 31, thus improving the separation effect. After filtering out enough waste, the filter screen 3 is pulled out from the rectangular chute 12, and the collected feces and residue are then centrally processed, which facilitates the cleaning of feces and residual food in the fish pond, saves time, and improves the effect and efficiency of cleaning feces and residual food in the fish pond.
[0044] Among them, ① the circular filter hole 32 is smaller, which can effectively avoid harming the fry even if it touches the fry when filtering feces and residual food above the water; such as avoiding tails, fins, etc. getting stuck in the filter hole or causing abrasions to the fish body.
[0045] Meanwhile, although the diameter of the strip filter hole 31 is larger than that of the circular filter hole 32, the feces accumulated during use will cover the strip filter hole 31 (even if there is no accumulation, direct contact with the fish fry will be avoided as much as possible during the initial use). At this time, even if there are fish above, there will be a buffer effect to ensure that the fish fry will not get stuck in the filter hole.
[0046] The combination of the circular filter holes 32 and the strip filter holes 31 protects the health and safety of the fish fry, and at the same time, compared with traditional treatment methods, it reduces the occurrence of fish fry deformities to a certain extent.
[0047] ② The mesh size of the net bag 4 is smaller and denser than that of the circular filter hole 32, ensuring that the feces and residual food passing through the filter mesh 3 are collected in the net bag 4 and will not re-enter the breeding pond, thereby achieving the purpose of filtering and collecting feces and residual food.
[0048] In summary, this utility model, through the cooperation of the net ring 1, filter mesh 3, and net bag 4, facilitates the convenient and rapid filtration and collection of feces and residual food, thereby improving the filtration effect and efficiency. By adding a detachable filter mesh 3 to the net ring 1, the fishing net is divided into upper and lower layers. Fish feces and residual food in the fishpond are filtered through the upper layer's strip filter holes 31 and circular filter holes 32 in cooperation, without harming the fish fry. The lower layer's net bag 4 then collects the filtered feces and residual food, thus centrally processing the collected fish feces and residual food and improving the effect and efficiency of cleaning fish feces and residual food in the fishpond.
[0049] As described above, the bottom of the filter screen 3 is provided with a protruding anti-slip strip 34.
[0050] Working principle:
[0051] The operator can quickly pull the filter screen 3 out of the rectangular chute 12 by pressing the anti-slip strip 34, thereby realizing the centralized treatment of fecal residue and other waste collected in the net bag 4.
[0052] In the above scheme, the connecting component 2 is a hollow structure, and an internal thread Ⅲ21 is provided inside the hollow structure. The structure of the adjustable multi-section handheld assembly 5 includes:
[0053] The handle I6 has an external thread I61 at its front end, and the external thread I61 is threadedly connected to the internal thread III21. The rear end of the handle I6 has an internal thread I62.
[0054] The handle II7 has an external thread II71 at its front end, which is threaded to the internal thread I62. The handle II7 also has an internal thread II72 at its rear end and an anti-slip sleeve 73 on its handle II7.
[0055] The handle Ⅲ8 has an external thread Ⅲ81 at its front end, and the external thread Ⅲ81 is threadedly connected to the internal thread Ⅱ72. The handle end cap 82 is fitted onto the tail end of the handle Ⅲ8.
[0056] Working principle:
[0057] The operator first aligns the external thread Ⅲ81 of handle Ⅲ8 with the internal thread Ⅱ72 of handle Ⅱ7 for thread connection, then aligns the external thread Ⅱ71 of handle Ⅱ7 with the internal thread Ⅰ62 of handle Ⅰ6 for thread connection, and finally aligns the external thread Ⅰ61 on handle Ⅰ6 with the internal thread Ⅲ21 in the hollow structure of connecting component 2 for thread connection, thus completing the splicing of the adjustable multi-section handheld component 5 for use;
[0058] In practical use, the appropriate number of handles I6 or handles II7 can be selected according to the needs (size of the fish pond) to splice multiple sections. The anti-slip sleeve 73 prevents the device from slipping during use, and the handle end cap 82 can further increase the practicality of the device.
[0059] In the above scheme, an air-suction component 9 is added to the filter screen 3, and the structure of the air-suction component 9 includes:
[0060] The hand-held suction head 91 has a flexible hollow structure and a through hole at the front end;
[0061] The suction pipe 92 has its rear end connected to the through hole. The front end of the suction pipe 92 extends into the net bag 4 through the through hole of the filter screen 3. A filter plug is provided at the front end of the suction pipe. The size of the filter plug is smaller than the size of the circular filter hole 32.
[0062] The outlet pipe 93 has one end connected to the middle and rear section of the suction pipe 92;
[0063] The adjustable multi-section handheld assembly 5 is rotatably fitted with a clamping limit block 51, and the water suction pipe 92 is engaged with the clamping limit block 51.
[0064] Working principle:
[0065] In practical use, in order to further improve the collection of fish feces and residual food, an air suction component 9 can be added to the filter screen 3. The front end of the suction pipe 92 is inserted into the net bag 4 through the through hole of the filter screen 3. The operator holds the suction head 91 and presses it continuously to generate suction. At this time, the water in the net bag 4 will first flow into the suction pipe 92 and then flow out from the outlet pipe 93. Repeating the above steps can generate suction repeatedly. The water flow speed is accelerated, so that the fish feces and residual food accumulated on the filter screen 3 fall into the net bag 4 more quickly for collection.
[0066] Among them, ① in actual use, the end of the water outlet pipe 93 can be suspended relative to the water in the aquaculture pond (if it goes deep into the aquaculture pond, it will cause the pond water to flow back from the water outlet pipe 93), so that the water sucked out from the net bag 4 returns to the aquaculture pond.
[0067] ② The filter plug can prevent fish feces and residual food from being sucked out of the water suction pipe 92 and returning to the breeding pond, or remaining in the water suction pipe 92 or the water outlet pipe 93, which would cause blockage and prevent collection. Also, the size of the filter holes on the filter plug is much smaller than the size of the circular filter holes 32 on the filter screen 3.
[0068] ③ The clamping limit block 51 can be placed in a limiting position when the suction component 9 is not in use to prevent it from being lost.
[0069] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.
Claims
1. A fish manure rapid separation and filtration device, comprising: A mesh ring with a support structure, having connecting components on its sides, is characterized in that it further includes: The mesh ring is provided with an open rectangular groove; The filter screen has two sets of strip-shaped filter holes symmetrically opened in the upper half, and circular filter holes distributed in a matrix in the lower half of the filter screen. Rectangular sliding plates are provided on both sides and the front end of the filter screen, and the rectangular sliding groove is adapted to the size of the rectangular sliding plate to achieve sliding connection. The net bag is fixed to the net ring by a supporting structure; An adjustable multi-section handheld assembly that is detachably connected to a wire mesh via connecting parts.
2. The rapid fish waste separation and filtration device according to claim 1, characterized in that, The bottom of the filter screen is provided with a protruding anti-slip strip.
3. The fish waste rapid separation filter device according to claim 1, characterized in that, The connecting component has a hollow structure, and an internal thread Ⅲ is provided inside the hollow structure.
4. The fish waste rapid separation and filtration device of claim 3, wherein, The adjustable multi-segment handheld assembly has the following structure: The handle I has an external thread I at its front end, which is threaded to an internal thread III. The handle I also has an internal thread I at its rear end. Handle II has an external thread II at its front end, which is threadedly connected to internal thread I. Handle II also has an internal thread II at its rear end and is equipped with an anti-slip sleeve. The handle Ⅲ has an external thread Ⅲ at its front end, which is threadedly connected to the internal thread Ⅱ. The tail end of the handle Ⅲ is fitted with a handle end cap.
5. The fish waste rapid separation filter device according to claim 1, wherein, An air-suction component is added to the filter screen, and the structure of the air-suction component includes: The suction head is held in the hand; it has a flexible hollow structure and a through hole at the front end. The suction pipe has its rear end connected to the through hole. The front end of the suction pipe extends into the mesh bag through the through hole of the filter screen. A filter plug is provided at the front end of the suction pipe. The size of the filter plug is smaller than the size of the circular filter hole. The outlet pipe has one end connected to the middle and rear section of the suction pipe. The adjustable multi-section handheld assembly is rotatably fitted with a clamping limit block, and the water suction pipe is engaged with the clamping limit block.