Fish and excrement separator with automatic cleaning function
By using a top-mounted brushless submersible motor and a cyclone separation zone, the problems of difficult disassembly of the motor and unstable drive shaft in existing fish waste separators are solved, achieving efficient automatic cleaning and high separation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 闫志伟
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-10
AI Technical Summary
The existing fish waste separator motor is difficult to disassemble, and the excessively long drive shaft causes instability, affecting the cleaning effect.
The brushless submersible motor with a top-mounted design is connected to the inner surface of the cover. The drive shaft passes through the cover, the bottom of the filter screen is placed on the first funnel, and the blades are installed on the drive shaft to form a swirling separation zone. Combined with a transparent observation window and a sedimentation zone, automatic cleaning is achieved.
It enables convenient disassembly and maintenance of the motor, improves separation efficiency, ensures that the filter screen is not easily clogged, purifies water quality, and achieves a separation efficiency of 95%.
Smart Images

Figure CN224098529U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fish -keeping equipment, concretely relates to an automatic cleaning fish excrement separator. BACKGROUND
[0002] With the development of the scale and intensive aquaculture, the breeding density is continuously improved, and the accumulation of fish excrement and waste such as residual bait in the water body can easily lead to water quality deterioration, affecting the growth and health of fish. In order to maintain a good breeding environment and improve the breeding efficiency, effective waste separation and treatment equipment are needed, and fish excrement separators emerge as the times require.
[0003] Aquariums are common decorations in homes and public places, and people want to keep the water quality clear and the environment beautiful in the aquariums to enjoy the good living conditions of fish. Fish excrement separators can help aquarium enthusiasts clean fish excrement more conveniently, reduce water changing frequency, and maintain ecological balance in the aquarium.
[0004] People's attention to environmental protection is increasing, and the impact of waste generated in the fields of aquaculture and aquariums on the water environment is also more concerned. Fish excrement separators can separate solid waste from water, reduce environmental pollution, and meet environmental protection requirements.
[0005] With the continuous development of related disciplines such as material science, mechanical manufacturing technology and fluid mechanics, technical support is provided for the research and development and improvement of fish excrement separators. Fish excrement separators are continuously optimized in terms of structural design, separation efficiency, durability, and more suitable for different application scenarios and needs. Although there is a fish excrement separator filter screen cleaning device, fish excrement separator and fish tank with patent number 202122820881.X, the motor is installed at the bottom, the drive shaft is too long and easy to swing, the motor is not easy to disassemble and maintain, and the cleaning effect is poor. Therefore, it is imperative to invent a new type of fish excrement separator. UTILITY MODEL CONTENTS
[0006] In view of the above situation, in order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide an automatic cleaning fish excrement separator, which can effectively solve the problems of difficult disassembly of the motor of the existing fish excrement separator, instability caused by the too long drive shaft, and influence on the cleaning effect.
[0007] The utility model discloses a technical scheme that solves the above technical problem, an automatic fish excrement separator, including the casing and filter screen, the casing top opening pipeline is equipped with the cover, the cover inner surface is equipped with the motor, and the motor is connected with the wire that stretches out the cover outer surface, and the opening pipeline below the cover is equipped with the water outlet, and the casing upper part side wall is provided with the water inlet, and the casing inside is provided with the filter screen, and the drive shaft of motor output is equipped with the vane, and the filter screen bottom is located on the first funnel, and the drive shaft passes the center hole of first funnel, and the first funnel inclined plane is provided with the blow-off port, and the first funnel lower mouth is equipped with the second funnel that butt joints together, and the first funnel and the second funnel between constitute the separation zone, and the casing below the second funnel is equipped with the first observation window, and the casing below observation window is provided with the excrement precipitation area, and the excrement precipitation area's side wall is provided with the sewage outlet.
[0008] Preferably, the water outlet is provided with two.
[0009] Preferably, the vane is rectangular vane, and the length is 10-30cm; the filter screen is cylindrical hollow filter screen, and the length is 10-30cm.
[0010] Preferably, the filter screen is 0.2mm aperture stainless steel filter screen, and is movably fixed on the opening pipeline through a stainless steel connecting piece; the filter screen and the opening pipeline bottom are flush.
[0011] Preferably, the center hole is provided with a through hole with a diameter larger than the center hole.
[0012] Preferably, the first observation window is a cylindrical hollow body made of transparent material and connected with the casing; the casing upper portion is provided with a second observation window, and the length is 10-30cm.
[0013] Preferably, the casing 1 is a cylindrical hollow body made of transparent material.
[0014] Preferably, the first funnel inner face circumference is equipped with a vertical downward cylinder, and a plurality of first spoiler plates are evenly distributed between the outer wall of the cylinder and the inner side of the first funnel; a plurality of convex second spoiler plates are evenly distributed on the upper end circumference of the second funnel, and a first blow-off hole is formed in the center of the bottom of the second funnel.
[0015] Preferably, the first spoiler plate is provided with three, and is crosswise arranged with the blow-off port and has the same number.
[0016] Preferably, the excrement precipitation area is a conical bottom with a low middle and a high periphery, and a second blow-off hole is arranged at the bottom of the conical bottom, a sewage outlet is formed on the conical inclined surface, and a matching sewage cover is arranged on the second blow-off hole.
[0017] Preferably, the motor is connected with a fish excrement separator special controller through a wire.
[0018] The beneficial technical effects of the utility model are:
[0019] 1) Brushless submersible motor is adopted, which is quiet and long in service life, backwashing positive and negative rotation is adjustable, backwashing strength is adjustable, backwashing time is adjustable and can be timed, and the top-mounted design is convenient for installation, disassembly and maintenance;
[0020] 2) 0.2mm small hole stainless steel filter screen (about 70 meshes) is adopted, which does not block water and does not block, the filter screen 10 and the open pipe 4 bottom are flush, which can prevent fish excrement, residual bait and other impurities from being rolled into the inner rotating flow and discharged through the water outlet;
[0021] 3) A small part of clean water in the separation zone slowly rises through the through hole 17 in the cylinder, and the water in the rotating flow in the filter screen is collected and discharged through the water outlet, which is not easy to block water inside and outside, and the separation efficiency is as high as 95%. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is a whole structure schematic view of the utility model;
[0023] Figure 2 It is a whole structure sectional view of the utility model;
[0024] Figure 3 It is a filter screen structure schematic view of the utility model;
[0025] Figure 4 It is a first funnel structure schematic view of the utility model;
[0026] Figure 5 It is a second funnel structure schematic view of the utility model;
[0027] Figure 6 It is a feces sedimentation zone structure schematic view of the utility model.
[0028] In the drawing, 1 is a shell, 2 is a cover, 3 is a motor, 4 is an open pipe, 5 is a water outlet, 6 is a first funnel, a cylinder 6-1, a first spoiler 6-2, 7 is a second funnel, a second spoiler 7-1, a first blowdown hole 7-2, 8 is a feces sedimentation zone, a second blowdown hole 8-1, 9 is a water inlet, 10 is a filter screen, 11 is a driving shaft, 12 is a blade, 13 is a center hole, 14 is a blowdown hole, 15 is an observation window, 16 is a sewage outlet, 17 is a through hole, 18 is a wire, 19 is a valve, 20 is a second observation window, and a stainless steel connecting piece 21. DETAILED DESCRIPTION
[0029] The specific embodiments of the utility model are described in detail in combination with the drawings and specific conditions.
[0030] By Figures 1-6The utility model provides technical scheme to solve is a kind of fish excrement separator of automatic cleaning, including shell and filter screen 10, shell 1 top opening pipeline 4 is equipped with cover 2, cover 2 inner surface is equipped with motor 3, motor 3 is connected with the wire 18 of the extension cover 2 outer surface, opening pipeline 4 below the cover 2 is equipped with water outlet 5, the upper portion lateral wall of shell 1 is provided with water inlet 9, shell 1 inside is provided with filter screen 10, the drive shaft 11 of motor 3 output end is equipped with blade 12, filter screen 10 bottom is placed on first funnel 6, drive shaft 11 passes through the center hole 13 of first funnel 6, first funnel 6 inclined surface is provided with sewage outlet 14, first funnel 6 lower mouth is equipped with the second funnel 7 of butt joint, first funnel 6 and second funnel 7 between constitute separation zone, first observation window 15 is equipped in the shell 1 below second funnel 7, and the shell 1 inside of observation window 15 is provided with excrement precipitation zone 8, and excrement precipitation zone 8's lateral wall is provided with sewage outlet 16.
[0031] Preferably, the water outlet 5 is provided with two, one of which is a backup water outlet.
[0032] Preferably, the blade 12 is a rectangular blade, 10-30 cm in length.
[0033] Preferably, the filter screen 10 is a cylindrical hollow filter screen, 10-30 cm in length.
[0034] Preferably, the filter screen 10 is a 0.2 mm aperture stainless steel filter screen, movably fixed to the opening pipeline 4 by a stainless steel connecting piece 21.
[0035] Preferably, the filter screen 10 and the opening pipeline 4 are flush at the bottom, which can prevent fish excrement, leftover feed and other impurities from being rolled into the inner vortex and discharged through the water outlet.
[0036] Preferably, the center hole 13 is provided with a through hole 17 around it, which is larger in diameter than the center hole 13, for clean water to pass through.
[0037] Preferably, the first observation window 15 is a cylindrical hollow body made of transparent material and integrated with the shell 1.
[0038] Preferably, the shell 1 is provided with a second observation window 20 at the upper portion, 10-30 cm in length.
[0039] Preferably, the shell 1 is a cylindrical hollow body made of transparent material.
[0040] Preferably, the first funnel 6 is provided with a vertically downward cylindrical body 6-1 on the inner circumference, and a plurality of first spoiler plates 6-2 are evenly distributed between the outer wall of the cylindrical body 6-1 and the inner side of the first funnel 6.
[0041] Preferably, the first spoiler 6-2 is provided with 3, and the same number of cross arrangement with the exhaust port 14.
[0042] Preferably, the second funnel 7 upper end is evenly distributed with a number of convex second spoiler 7-1, and the second funnel 7 bottom center is provided with a first exhaust hole 7-2.
[0043] Preferably, the feces precipitation zone 8 is a conical bottom with low middle and high periphery, and the conical bottom is provided with a second exhaust hole 8-1, and the conical slope is provided with a sewage outlet 16 leading to the outside of the shell 1, and the second exhaust hole 8-1 is provided with a matching sewage cover, which can be opened when cleaning.
[0044] Preferably, the sewage outlet 16 is provided with a valve 19.
[0045] Preferably, the motor 3 is connected with the fish waste separator special controller through the wire 18.
[0046] When the utility model is used, the water in the fish tank enters the fish waste separator through the water inlet 9 on the upper side wall of the shell 1, and forms a cyclone, and the fish manure and stone residue with large specific gravity are separated to the bottom of the shell 1 through the exhaust port 14 on the first funnel 6 under the action of centrifugal force, and the residue with light specific gravity is intercepted by the filter screen 10 in the shell 1, and the dirty things on the filter screen 10 are again backflushed to the cyclone by the driving shaft 11 of the top motor 3 driving the blade 12, and are separated again, so that the filter screen can be kept clean at any time, is not easy to block, and the separation efficiency can be increased, the circulation of water flow and the separation of feces are separated through the separation zone formed by the first funnel 6 and the second funnel 7, and the separated feces will not participate in water circulation again, and will not pollute the fish waste separator again, and after the motor is connected with the fish waste separator special controller, it can be cleaned in forward and reverse directions, the strength of backflushing can be adjusted by adjusting the rotating speed, and the timing function can be set to one minute, one hour, 8 hours, 5 seconds, 10 seconds, 20 seconds or 30 seconds, and the fish density in the fish tank can be adjusted in real time.
[0047] The first funnel inside the cylinder 6-1 and the first spoiler 6-2 can prevent the fish excrement, leftover bait and other impurities from being rolled away from the drain outlet 14 of the first funnel, and can guide the fish excrement, leftover bait and other impurities to quickly sink downward, the first spoiler 6-2 is streamline, and the second spoiler 7-1 on the second funnel can jointly block the rotation of the water flow in the separation zone, so that the water is static, and the fish excrement, leftover bait and other impurities with large specific gravity can fully sink, a small part of clean water in the separation zone slowly flows upward through the through hole 17 in the cylinder, and the upward rotating water in the filter screen is discharged through the water outlet; the upper part of the first funnel on the upper part of the separation zone is in a slope shape, and the drain outlet is opened in the middle of the slope, the lower part of the second funnel is in a conical shape and is provided with a first drain hole 7-2 in the center, the fish excrement, leftover bait and other impurities with large specific gravity can quickly reach the excrement sedimentation zone 8 and sink to the conical bottom of the excrement sedimentation zone 8, and then are discharged through the sewage outlet 16 on the conical slope, the second drain hole 8-1 is further arranged on the conical bottom, when the excrement sedimentation zone 8 needs to be thoroughly cleaned, the sewage cover on the second drain hole 8-1 is opened for flushing. The fish excrement, leftover bait and other impurities with large specific gravity separated in the excrement sedimentation zone will not flow back to the fish tank through the almost static sedimentation separation zone and the rotational flow zone, the filter screen 10 and the bottom of the open pipe 4 are flush, so that the fish excrement, leftover bait and other impurities can be prevented from being rolled into the internal rotational flow and discharged through the water outlet, the filter screen is movably fixed on the open pipe through the stainless steel connecting piece 21, the upper part of the filter screen is flush with the open pipe, and the lower part of the filter screen abuts against the first funnel, so that the filter screen can be conveniently installed, disassembled and cleaned at any time, and the cylindrical structure of the filter screen can promote the smooth rotation of the water flow, generate sufficient rotational flow, and make the fish excrement, leftover bait and other impurities with large specific gravity fully swing to the edge and enter the downward external rotational flow, the drain outlet on the first funnel is just opened in the area between the inner wall of the shell and the junction of the internal and external rotational flow, so that the fish excrement, leftover bait and other impurities can not be brought into the internal rotational flow and directly enter the separation zone and sink to the sedimentation zone. Finally, the purified water is discharged through the water outlet and the water pump and enters the fish tank, so that a circulating separation system is formed.
[0048] The fish excrement separator has the advantages of reasonable structure design, novelty and uniqueness, convenient installation and use, high separation efficiency of 95%, adoption of a brushless submersible motor, long service life, adjustable forward and reverse rotation during backwashing, adjustable backwashing strength, adjustable backwashing time, convenient installation, disassembly and maintenance, adoption of a 0.2mm small-hole stainless steel filter screen (about 70 meshes), no water blockage, discharge of fish excrement, leftover bait and other impurities through the drain outlet by opening the valve, and obvious economic and social benefits.
[0049] It should be noted that the above given is only an embodiment, applicable to illustrate the specific embodiment of the utility model, and is not used to limit the protection scope of the utility model, and any equivalent replacement technical means made in essence with the technical scheme of the utility model, belongs to the protection scope of the utility model.
Claims
1. An automatic cleaning fish waste separator comprising a housing and a filter screen, characterised in that, The shell (1) top opening pipe (4) is provided with a cover (2), the inner surface of the cover (2) is provided with a motor (3), the motor (3) is connected with the wire (18) extending out of the outer surface of the cover (2), the opening pipe (4) below the cover (2) is provided with a water outlet (5), the upper part of the side wall of the shell (1) is provided with a water inlet (9), the inside of the shell (1) is provided with a filter screen (10), the driving shaft (11) of the output end of the motor (3) is provided with a blade (12), the bottom of the filter screen (10) is arranged on the first funnel (6), the driving shaft (11) passes through the center hole (13) of the first funnel (6), the inclined surface of the first funnel (6) is provided with a sewage outlet (14), the lower opening of the first funnel (6) is provided with a second funnel (7) which is connected together, the first funnel (6) and the second funnel (7) form a separation zone, the first observation window (15) is arranged on the shell (1) below the second funnel (7), the inside of the shell (1) below the observation window (15) is provided with a feces precipitation zone (8), the side wall of the feces precipitation zone (8) is provided with a sewage outlet (16).
2. The self-cleaning fish waste separator of claim 1, wherein, The water outlet (5) is provided with two.
3. The self-cleaning fish waste separator of claim 1, wherein, The blade (12) is a rectangular blade, and the length is 10-30cm; the filter screen (10) is a cylindrical hollow filter screen, and the length is 10-30cm.
4. An automatically cleaning fish waste separator according to claim 3, characterized in that The filter screen (10) is a stainless steel filter screen with a pore size of 0.2mm, which is movably fixed on the opening pipe (4) through a stainless steel connecting piece (21); the filter screen (10) is flush with the bottom of the opening pipe (4).
5. The self-cleaning fish waste separator of claim 1, wherein, The center hole (13) is provided with a through hole (17) with a diameter larger than that of the center hole (13) around the center hole (13).
6. The self-cleaning fish waste separator of claim 1, wherein, The first observation window (15) is a cylindrical hollow body made of transparent material and connected with the shell (1); the second observation window (20) is arranged on the upper part of the shell (1), and the length is 10-30cm.
7. The self-cleaning fish waste separator of claim 1, wherein, The inner surface of the first funnel (6) is provided with a vertical downward cylinder (6-1) around the circumference, and a plurality of first spoiler plates (6-2) are uniformly distributed between the outer wall of the cylinder (6-1) and the inner side of the first funnel (6); a plurality of convex second spoiler plates (7-1) are uniformly distributed around the upper end of the second funnel (7), and a first sewage discharge hole (7-2) is arranged at the bottom center of the second funnel (7).
8. An automatically cleaning fish waste separator according to claim 7, characterized in that The first spoiler plate (6-2) is provided with three, which are arranged in the same number and cross the sewage outlet (14).
9. The self-cleaning fish waste separator of claim 1, wherein, The feces precipitation zone (8) is a conical bottom with a low middle and a high periphery, and is provided with a second sewage discharge hole (8-1) at the bottom, and a sewage outlet (16) leading to the outside of the shell (1) is arranged on the conical slope, and a matching sewage cover is arranged on the second sewage discharge hole (8-1).
10. The self-cleaning fish waste separator of claim 1, wherein, The motor (3) is connected with the fish waste separator special controller through the wire (18).
Citation Information
Patent Citations
Cleaning device for filter screen of fish and excrement separator, fish and excrement separator and fish tank
CN216796201U