Pollution discharge closestool for culture pond

By designing a sludge collection tray and an escape-proof net, combined with a cleaning brush head driven by a rotary motor, the problem of separating sludge from live fish in aquaculture ponds has been solved, achieving automated sludge cleaning, improving cleaning efficiency and reducing manual intervention.

CN224069515UActive Publication Date: 2026-04-03ZHONGKE INTELLIGENT SYSTEM (HUIZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-08
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing aquaculture ponds have difficulty effectively separating live fish from waste during the sewage discharge process, especially diseased and dead fish, resulting in low cleaning efficiency and the need for manual intervention.

Method used

Design a sewage toilet that includes a sludge collection tray, an escape-proof net, and a rotary motor. Through the diversion design of the sludge collection tray and the screening function of the escape-proof net, the sewage on the surface and bottom of the pool is guided into the sludge collection tray respectively, and the cleaning brush head driven by the rotary motor is used to clean the escape-proof net, thereby achieving the separation of sewage from live fish and automatic cleaning.

Benefits of technology

It achieves efficient separation and automatic cleaning of waste and live fish, reducing manual intervention, improving cleaning efficiency, and reducing labor intensity.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224069515U_ABST
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Abstract

The utility model relates to a sewage disposal closestool for a culture pond, which comprises a sewage collection tray, an anti-escape mesh enclosure and a rotating motor, the sewage collection tray comprises a water baffle and a discharge filter screen, the water baffle is arranged around the periphery of the sewage collection tray, the discharge filter screen is positioned above the water baffle, the sewage collection tray is provided with a sewage outlet and a sewage inlet, and the sewage outlet and the sewage inlet are communicated with each other. The anti-escape net cover is installed on the dirt collecting disc and covers the dirt discharging opening inside, the dirt inlet is communicated with a culture pond, the output end of the rotating motor is connected with a cleaning brush head, and the cleaning brush head abuts against the side face of the anti-escape net cover and is driven by the rotating motor to rotate around the anti-escape net cover. The pollution discharge device is suitable for pollution discharge work of the culture pond, can achieve distribution of live fishes and dirt during pollution discharge, can effectively clean diseased fishes and dead fishes in the culture pond, and is good in practicability.
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Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, and more specifically, to a sewage toilet for aquaculture ponds. Background Technology

[0002] Aquaculture ponds are containers used for raising fish and other aquatic products, playing a vital role in aquaculture. During the breeding process, feed residue, fish feces, and other waste gradually accumulate in the ponds. Therefore, regular cleaning of the ponds is necessary to avoid adverse effects on the aquatic products and ensure the normal operation of the aquaculture process.

[0003] Existing aquaculture ponds are usually equipped with sewage outlets and valves to control their opening and closing. Opening the valves allows waste in the aquaculture pond to be discharged from the sewage outlets. However, due to the high water pressure after opening the valves, some live fish inevitably get sucked in. Separating live fish from waste is quite troublesome. In addition, there may be some sick or dead fish in the aquaculture ponds. These sick or dead fish cannot be cleaned out through the sewage outlets. Therefore, manual retrieval and cleaning are often required, which is cumbersome and inefficient. Utility Model Content

[0004] In view of this, the present invention provides a sewage toilet for aquaculture ponds that can solve the above-mentioned problems.

[0005] A sewage toilet for aquaculture ponds includes a sludge collection tray, an escape-proof net cover, and a rotary motor. The sludge collection tray includes a baffle plate and a filter screen. The baffle plate is arranged around the periphery of the sludge collection tray, and the filter screen is located above the baffle plate. The sludge collection tray has a sewage outlet and a sewage inlet. The escape-proof net cover is installed on the sludge collection tray and covers the sewage outlet inside. The sewage inlet is connected to the aquaculture pond. A cleaning brush head is connected to the output end of the rotary motor. The cleaning brush head abuts against the side of the escape-proof net cover and rotates around the escape-proof net cover under the drive of the rotary motor.

[0006] In the above technical solution, during use, the sludge collection tray is installed inside the aquaculture pond, with the water level in the pond higher than the baffle plate. The aquaculture pond has a dedicated sewage discharge channel for discharging waste, which is connected to the sewage outlet of the sludge collection tray. When the aquaculture pond needs to be cleaned, the valve of the sewage discharge channel is opened. Under the action of water pressure, the water at the bottom of the aquaculture pond flows into the sludge collection tray through the sewage inlet on the sludge collection tray, while the water on the surface of the aquaculture pond flows into the sludge collection tray through the opening above the sludge collection tray and the filter screen. After entering the sludge collection tray, the pond water passes through the escape-proof net and enters the sewage outlet. Fish feces and feed residue can pass through the holes on the escape-proof net and be discharged from the sewage outlet, while weaker, more seriously ill, or dead fish are blocked by the escape-proof net and remain in the sludge collection tray. Healthy live fish can freely enter and exit the sludge collection tray through the sewage inlet on the sludge collection tray and return to the aquaculture pond.

[0007] To remove sludge from the surface of the aquaculture pond, the water needs to be diverted into the sludge collection tray. Therefore, the water level in the aquaculture pond will be higher than the baffle plate during use. By installing a filter screen above the baffle plate, sludge entering the sludge collection tray is trapped without affecting the flow of water, ensuring that the sludge remains in the collection tray. The sides of the escape-proof net cover are equipped with cleaning brush heads. The bristles of the cleaning brush heads contact the sides of the escape-proof net cover. Driven by a rotating motor, the cleaning brush heads can rotate around the escape-proof net cover to scrub and clean the sides of the escape-proof net cover, preventing the accumulation of feed and fish feces that would clog the surface of the escape-proof net cover. It can also separate sick and dead fish, preventing them from accumulating at the escape-proof net cover. In addition, the rotating cleaning brush heads can also drive away healthy fish, preventing them from lingering around the escape-proof net cover.

[0008] In one embodiment, the sludge collection tray further includes a mounting plate, which is installed inside the baffle plate. The mounting plate is higher than the baffle plate, and the portion above the baffle plate has multiple windows. The filter screen is installed on the mounting plate and covers the windows.

[0009] In the above technical solution, the mounting plate is higher than the baffle plate, and the filter screen is installed on the mounting plate to intercept and block the dirt inside the sludge collection tray. The mounting plate provides an installation position for the filter screen, which can be embedded or sleeved on the mounting plate to improve the installation strength of the filter screen and prevent deformation. The mounting plate is provided with a window, through which water from the pool surface can flow into the sludge collection tray.

[0010] In one embodiment, the filter screen is detachably connected to the mounting plate.

[0011] In the above technical solution, the filter screen and the mounting plate are detachably connected, which facilitates cleaning or replacement of the filter screen.

[0012] In one embodiment, the escape-proof net is a hollow cylindrical shape, and the top of the escape-proof net is provided with a cover plate.

[0013] In the above technical solution, the cover plate is used to cover the top of the escape-proof net, thereby sealing the escape-proof net and preventing live fish from escaping from the top of the escape-proof net.

[0014] In one embodiment, the escape-proof netting has multiple capsule-shaped filter holes.

[0015] In the above technical solution, the filter pores of the capsule-shaped structure are generally long and thin, which can effectively isolate live creatures such as fish, while not affecting the passage of feed residue, fish feces and water flow.

[0016] In one embodiment, a first pipe and a second pipe are installed at the bottom of the sludge collection tray, the first pipe being connected to the drain outlet and the second pipe being connected to the inlet outlet.

[0017] In the above technical solution, the first pipe is connected to the sewage discharge channel of the aquaculture pond to send the sewage to other areas for collection, while the second pipe leads directly to the bottom of the aquaculture pond to guide the water at the bottom of the pond into the sewage collection tray. In addition, healthy fish can also freely enter and exit the sewage collection tray through the sewage inlet and the second pipe.

[0018] In one embodiment, a mounting rod is connected to one side of the rotary motor, and a mounting block is provided on the outer side of the sludge collection tray. The mounting block has mounting holes for mounting the mounting rod.

[0019] In the above technical solution, the mounting rod is inserted into the mounting hole. The mounting rod is used to provide a mounting position for the rotary motor, so that the rotary motor is located above the escape-proof net cover.

[0020] In one embodiment, a connecting rod is mounted on the output end of the rotary motor, and the cleaning brush head is mounted on the connecting rod.

[0021] In the above technical solution, the cleaning brush head is attached to the side of the escape-proof net cover via a connecting rod. The rotary motor can drive the connecting rod to rotate, thereby causing the cleaning brush head to rotate around the escape-proof net cover to clean the side of the escape-proof net cover and prevent clogging.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This invention utilizes a sludge collection tray and a filter screen, with a drain and an inlet on the tray. This design guides the water from the surface and bottom of the pond into the collection tray, trapping waste, diseased fish, and dead fish in the water. It effectively removes sediment from the surface and bottom of the pond, offering high reliability. The drain is covered with an escape-proof net, allowing fish feces and feed residue to be discharged through the net. Diseased and dead fish are trapped in the collection tray, while healthy fish can freely enter and exit through the inlet. This effectively solves the problem of separating waste from healthy fish during pond cleaning. Furthermore, it allows for the cleaning and collection of diseased and dead fish without manual intervention, reducing labor intensity and improving work efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a perspective view of a sewage toilet according to one embodiment.

[0026] Figure 2 for Figure 1 A magnified view of area A in the middle.

[0027] Figure 3 This is a front view of the sewage toilet of this utility model.

[0028] Figure 4 This is a top view of the sewage toilet of this utility model.

[0029] Figure 5 This is a bottom view of the sewage toilet of this utility model.

[0030] Explanation of the reference numerals in the figure:

[0031] 1-Sludge collection tray; 11-Water baffle; 111-Mounting block; 12-Mounting enclosure; 121-Window; 13-Filter screen; 14-Sludge outlet; 141-First pipe; 15-Sludge inlet; 151-Second pipe; 2-Anti-escape net cover; 21-Filter hole; 22-Cover plate; 3-Rotating motor; 31-Mounting rod; 32-Connecting rod; 33-Cleaning brush head. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Example 1

[0036] This embodiment uses an eel farming pond as an example to illustrate this sewage toilet. It can be understood that this sewage toilet can also be used in farming ponds for other fish species.

[0037] Please refer to Figures 1 to 5 ( Figure 1 (The filter screen 13 has been removed). A sewage toilet for eel farming ponds includes a sludge collection tray 1, an escape-proof net cover 2, and a rotary motor 3. The sludge collection tray 1 includes a baffle plate 11, a mounting plate 12, and a filter screen 13. The baffle plate 11 is arranged around the perimeter of the sludge collection tray 1. The mounting plate 12 is located inside the baffle plate 11 and is higher than the baffle plate 11. The top of the mounting plate 12 has a ring of windows 121 spaced apart. The filter screen 13 is installed on the mounting plate 12 and covers the windows 121. The sludge collection tray 1 is equipped with a sewage discharge device. The sludge collection tray 1 has an outlet 14 and a sludge inlet 15. The bottom of the sludge collection tray 1 is provided with a first pipe 141 and a second pipe 151. The first pipe 141 and the second pipe 151 are respectively connected to the sludge outlet 14 and the sludge inlet 15. The anti-escape net cover 2 is installed on the sludge collection tray 1 and covers the sludge outlet 14 inside. The sludge inlet 15 is connected to the bottom of the aquaculture pond through the second pipe 151. The output end of the rotary motor 3 is connected to a cleaning brush head 33. The bristles of the cleaning brush head 33 contact the side of the anti-escape net cover 2 and rotate around the anti-escape net cover 2 under the drive of the rotary motor 3.

[0038] Specifically, this sewage toilet is installed inside the aquaculture pond during use. The water level in the aquaculture pond is higher than the baffle plate 11. The aquaculture pond is equipped with a sewage discharge channel (not shown in the figure) for discharging waste. This sewage discharge channel is connected to the first pipe 141. When the aquaculture pond needs to be cleaned, the valve of the sewage discharge channel is opened. Under the action of water pressure, the bottom water of the aquaculture pond is sucked into the sewage collection tray 1 through the sewage inlet 15 on the sewage collection tray 1. The surface water of the aquaculture pond flows into the sewage collection tray 1 through the opening above the sewage collection tray 1 and the filter screen 13. After entering the sewage collection tray 1, the pond water enters the sewage outlet 14 through the escape-proof net cover 2. Among them, fish feces and feed residue in the pond water can pass through the holes on the escape-proof net cover 2 and be discharged from the sewage outlet 14. However, the weaker eels, the more seriously ill eels, or the dead eels are blocked by the escape-proof net cover 2 and remain in the sewage collection tray 1 near the escape-proof filter screen. Healthy eels can freely enter and exit the sewage collection tray 1 through the sewage inlet 15 and the second pipe 151. This embodiment divides the sludge inlet path of the sludge collection tray 1 into two paths, one towards the water surface and the other towards the bottom of the pool, thereby effectively removing debris from the pool surface, as well as dirt, sediment, and diseased or dead fish from the bottom of the pool.

[0039] Understandably, since the water at the bottom of the aquaculture pond enters the sludge collection tray 1 through the second pipe 151 and the sludge inlet 15, a certain resistance will be generated at the sludge inlet 15. Healthy eels can swim from the sludge inlet 15 and the second pipe 151 into the aquaculture pond, while weaker, more diseased, or dead eels cannot return to the aquaculture pond through the sludge inlet 15. This effectively filters out diseased and dead fish and leaves them in the sludge collection tray 1 for easy cleaning.

[0040] To remove sludge from the surface of the aquaculture pond, the water needs to be channeled into the sludge collection tray 1. By installing windows 121 and a filter screen 13 on the enclosure 12, sludge entering the sludge collection tray 1 is trapped without affecting the flow of pond water, allowing the sludge to collect in the tray 1 for easy subsequent cleaning. The side of the escape-proof net cover 2 is equipped with a cleaning brush head 33. The bristles of the cleaning brush head 33 contact the side of the escape-proof net cover 2. Driven by the rotary motor 3, the cleaning brush head 33 can rotate around the escape-proof net cover 2 to brush and clean the side of the escape-proof net cover 2, preventing the accumulation of feed and fish feces residue that could clog the surface of the escape-proof net cover 2. It can also separate sick and dead fish, preventing them from accumulating at the escape-proof net cover 2. In addition, the rotating cleaning brush head 33 can also drive away healthy fish, preventing them from lingering around the escape-proof net cover 2.

[0041] Furthermore, a connecting rod 32 is installed on the output end of the rotary motor 3, and a cleaning brush head 33 is installed on the connecting rod 32. The connecting rod 32 is attached to the side of the escape-proof net cover 2. The rotary motor 3 can drive the connecting rod 32 to rotate, thereby driving the cleaning brush head 33 to rotate around the escape-proof net cover 2 to clean the side of the escape-proof net cover 2 and prevent clogging.

[0042] It should be noted that the bottom of the second pipe does not contact the bottom of the aquaculture pond to ensure that the eels can return to the aquaculture pond.

[0043] Please refer to Figure 3 In this embodiment, the filter screen 13 is installed inside the window 121 on the mounting plate 12 and is detachably connected to the mounting plate 12, which facilitates cleaning or replacement of the filter screen 13. In addition to the above-mentioned arrangement, in some embodiments, the filter screen 13 can also be set as a ring and fitted onto the window 121 position outside the mounting plate 12.

[0044] It is understandable that the installation enclosure 12 can provide an installation position for the filter screen 13. Compared with setting the annular filter screen 13 directly above or inside the baffle plate 11, installing the filter screen 13 on the installation enclosure 12 can significantly improve the installation strength of the filter screen 13 and prevent the filter screen 13 from deforming.

[0045] Please refer to Figure 1 In this embodiment, the escape-proof net cover 2 is a hollow cylindrical shape. The top of the escape-proof net cover 2 is provided with a cover plate 22, which is used to cover the top of the escape-proof net cover 2 and seal the escape-proof net cover 2 to prevent live fish from escaping from the top of the escape-proof net cover 2.

[0046] Please refer to Figure 1 and Figure 2 In this embodiment, the escape-proof net cover 2 is provided with multiple capsule-shaped filter holes 21. The capsule-shaped filter holes 21 are generally slender and can effectively isolate live creatures such as fish, while not affecting the passage of feed residue, fish feces and water flow.

[0047] Please refer to Figure 1 and Figure 3 In this embodiment, a mounting rod 31 is connected to one side of the rotary motor 3, and two mounting blocks 111 distributed vertically are provided on the side of the baffle plate 11. The mounting blocks 111 have mounting holes for mounting rod 31. The mounting rod 31 is inserted into the mounting holes to provide a mounting position for the rotary motor 3, so that the rotary motor 3 is located above the escape-proof net cover 2. Example 2

[0048] Please refer to Figures 1 to 5 The working principle of this embodiment is as follows:

[0049] During operation, the sludge collection tray 1 is located inside the aquaculture pond, and the water level in the aquaculture pond is higher than the baffle plate 11. Then, the aquaculture pond drain valve is opened, and the aquaculture pond begins to drain water. The water level begins to drop. Under the action of water pressure, the bottom water of the aquaculture pond flows into the sludge collection tray 1 through the sludge inlet 15 on the sludge collection tray 1. The surface water of the aquaculture pond flows into the sludge collection tray 1 through the opening above the sludge collection tray 1 and the filter screen 13. After entering the sludge collection tray 1, the pond water is discharged through the drain outlet 14. Among them, fish feces, feed residue, sediment and other substances in the pond water can pass through the holes on the escape-proof net cover 2 and be discharged from the drain outlet 14. However, the weaker eels, the more seriously ill eels or the dead eels are blocked by the escape-proof net cover 2 and remain in the sludge collection tray 1, waiting for subsequent cleaning. Healthy eels can freely enter and exit the sludge collection tray 1 through the sludge inlet 15 and the second pipe 151. The drainage will not affect the live fish.

[0050] Understandably, the water in the aquaculture pond was continuously drained until it was level with the bottom of the sludge collection tray before the drainage stopped.

[0051] 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.

[0052] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 limitations on this utility model.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A sewage toilet for use in aquaculture ponds, characterized in that, The device includes a sludge collection tray, an escape-proof net cover, and a rotary motor. The sludge collection tray includes a baffle plate and a filter screen. The baffle plate is arranged around the perimeter of the sludge collection tray, and the filter screen is located above the baffle plate. The sludge collection tray has a drain outlet and a drain inlet. The escape-proof net cover is installed on the sludge collection tray and covers the drain outlet inside. The drain inlet is connected to the aquaculture pond. A cleaning brush head is connected to the output end of the rotary motor. The cleaning brush head abuts against the side of the escape-proof net cover and rotates around the escape-proof net cover under the drive of the rotary motor.

2. The sewage toilet for aquaculture ponds according to claim 1, characterized in that, The sludge collection tray also includes an installation enclosure, which is installed inside the baffle plate. The height of the installation enclosure is higher than that of the baffle plate, and the portion above the baffle plate has multiple windows. The filter screen is installed on the installation enclosure and covers the windows.

3. The sewage toilet for aquaculture ponds according to claim 2, characterized in that, The filter screen is detachably connected to the mounting plate.

4. The sewage toilet for aquaculture ponds according to claim 1, characterized in that, The escape-proof net is a hollow cylindrical shape, and the top of the escape-proof net is provided with a cover plate.

5. The sewage toilet for aquaculture ponds according to claim 1, characterized in that, The escape-proof netting has multiple capsule-shaped filter holes.

6. The sewage toilet for aquaculture ponds according to claim 1, characterized in that, The bottom of the sludge collection tray is equipped with a first pipe and a second pipe. The first pipe is connected to the drain outlet, and the second pipe is connected to the inlet outlet.

7. The sewage toilet for aquaculture ponds according to claim 1, characterized in that, A mounting rod is connected to one side of the rotary motor, and a mounting block is provided on the outer side of the sludge collection tray. The mounting block has mounting holes for mounting the mounting rod.

8. The sewage toilet for aquaculture ponds according to claim 1, characterized in that, A connecting rod is installed on the output end of the rotary motor, and the cleaning brush head is mounted on the connecting rod.