Device for breeding ricefield eel

Abstract

This invention provides a device for raising eels, comprising at least one tank, at least one filter screen, and at least one wastewater discharge component. Each tank has a fish toilet connected to its bottom, and the eels are located inside the tank. The number of filter screens is the same as the number of tanks, and they correspond one-to-one. Each filter screen is laid at the bottom inner side of its corresponding tank, and the eels are located on the filter screen. The number of wastewater discharge components is the same as the number of tanks, and they correspond one-to-one. Each wastewater discharge component is connected to its corresponding fish toilet and is used to discharge wastewater from the fish toilet. This invention simplifies the water replacement process in the raising tank, making it convenient and quick.

Description

Technical Field

[0001] This utility model belongs to the field of aquaculture technology, specifically relating to a device for raising eels. Background Technology

[0002] The swamp eel is a species of fish belonging to the genus *Sphaeropoda* in the family Synbranchiidae. It is also known as the field eel or swamp eel. It is a species used in aquaculture. The commonly used tool for swamp eel farming is a breeding bucket, in which the eels are placed, water is added, and they are fed. However, during the feeding process, the water in the breeding bucket needs to be changed frequently, which is a tedious process. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a loach farming device that simplifies the water replacement process by improving the tank body, making it convenient and quick.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This invention provides a loach farming device, comprising at least one bucket, at least one filter screen, and at least one sewage discharge component. Each bucket has a fish toilet connected to its bottom, and the loach is located inside the bucket. The number of filter screens is the same as the number of buckets, and they correspond one-to-one. Each filter screen is laid at the bottom inner side of its corresponding bucket, and the loach is located on the filter screen. The number of sewage discharge components is the same as the number of buckets, and they correspond one-to-one. Each sewage discharge component is connected to its corresponding fish toilet and is used to discharge wastewater from the fish toilet.

[0006] Preferably, the filter screen is a mesh plate adapted to the bottom of the barrel, and the upper edge of the mesh plate is provided with a handle.

[0007] Preferably, there are multiple barrels, and the sewage discharge components on the multiple barrels share a sewage discharge trough, with each sewage discharge component discharging sewage into the sewage discharge trough.

[0008] Preferably, the sewage discharge assembly includes a sewage discharge pipe, one end of which is connected to the bottom of the fish toilet, and the other end extends into the sewage discharge trough.

[0009] Preferably, the sewage discharge pipe is equipped with a sewage discharge regulating valve and a pneumatic / electric ball valve.

[0010] Preferably, the pneumatic / electric ball valve is connected to a control unit, which is used to control the opening and closing of the sewage regulating valve.

[0011] Preferably, each bucket is provided with an overflow assembly, the overflow assembly including an overflow box located on the upper outer side of the bucket, and the overflow box is connected to the fish toilet through an overflow pipe.

[0012] Preferably, the overflow assembly further includes a return water pipe, one end of which extends from the bottom of the overflow box into the overflow box, and the other end extends into the drain trough.

[0013] Preferably, each tank is further provided with a water inlet assembly, which includes a water inlet pipe and multiple nozzles. The multiple nozzles are located inside the tank, and the water inlet pipe is connected to the multiple nozzles to deliver water to the multiple nozzles.

[0014] Preferably, each nozzle is a duckbill nozzle.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention adds a sewage discharge component and a filter screen to each tank. When the water in the tank becomes cloudy, debris and other substances are filtered through the filter screen and sent to the fish toilet. When a certain amount of debris accumulates, the sewage discharge component drains the wastewater containing debris. After draining the wastewater, clean water can be added back to the tank. By improving the tank design, the water changing process in the aquaculture tank is simplified, making it convenient and quick. Attached Figure Description

[0017] Figure 1 This is a perspective view of a yellow eel farming device provided in an embodiment of the present invention;

[0018] Figure 2 for Figure 1 An exploded view of one of the barrel units;

[0019] Figure 3 for Figure 1 A side view of one of the barrel units;

[0020] Figure 4 for Figure 3 The main view;

[0021] Figure 5 for Figure 4 The left view;

[0022] Figure 6 for Figure 4 Top view;

[0023] Figure 7 for Figure 1 A side view of one of the barrels;

[0024] Figure 8 for Figure 7 Another side view.

[0025] Attached reference numerals: 100, eel farming device, 1, tank, 11, filter screen, 2, handle, 21, sewage discharge assembly, 31, sewage discharge pipe, 32, sewage discharge regulating valve, 33, pneumatic / electric ball valve, 4, overflow assembly, 5, overflow box, 51, overflow pipe, 52, return water pipe, 53, water inlet assembly, 6, water inlet pipe, 61, nozzle, 62. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to specific embodiments, so that those skilled in the art can more clearly understand the present invention.

[0027] The swamp eel is a species of fish belonging to the genus *Sphaeropoda* in the family Synbranchiidae. It is also known as the field eel or swamp eel. It is a species used in aquaculture. The commonly used tool for swamp eel farming is a breeding bucket, in which the eels are placed, water is added, and they are fed. However, during the feeding process, the water in the breeding bucket needs to be changed frequently, which is a tedious process.

[0028] To solve the above problems, combined with Figure 1-8 This utility model provides an eel farming device 100, including at least one barrel 1, at least one filter screen 2, and at least one sewage discharge component 3. The bottom of each barrel 1 is connected to a fish toilet 11, and the eels are located inside the barrel 1. The number of at least one filter screen 2 is the same as the number of at least one barrel 1, and they correspond one-to-one. Each filter screen 2 is laid on the inner bottom of the corresponding barrel 1, and the eels are located on the filter screen 2. The number of at least one sewage discharge component 3 is the same as the number of at least one barrel 1, and they correspond one-to-one. Each sewage discharge component 3 is connected to the corresponding fish toilet 11 and is used to discharge the sewage in the fish toilet 11.

[0029] In the above technical solution, this aquaculture device mainly includes three core parts: a tank 1, a filter screen 2, and a sewage discharge assembly 3. Each tank 1 is used to hold water and eels, serving as the space for the eels' daily life and growth. The tank 1 is a basic structural component, typically made of high-strength plastic or stainless steel for corrosion resistance and easy cleaning. In some embodiments, the tank 1 is welded from PP material and is shaped like a circular cone-bottomed tank, facilitating mass production. The mesh size of the filter screen 2 is designed according to the eel's body shape, preventing eels from entering the sewage outlet while allowing feces, uneaten feed, and other impurities to pass through and fall into the "fish toilet 11" below. The bottom of the tank 1 is connected to the fish toilet 11, which is essentially a sewage storage space used to collect waste deposited below the filter screen 2. The fish toilet 11 is further connected to the sewage discharge assembly 3, which can be a drainage pipe, valve, or electric drainage system, facilitating periodic or automatic sewage discharge and reducing manual intervention.

[0030] This invention adds a sewage discharge component 3 and a filter screen 2 to each tank 1. When the water in the tank 1 becomes cloudy, debris and other substances in the tank 1 will be filtered through the filter screen 2 into the fish toilet 11. When the debris accumulates to a certain amount, the sewage discharge component 3 will drain the wastewater containing the debris. After draining the wastewater, clean water can be added back to the tank 1. By improving the tank 1, the water replacement process in the aquaculture tank is simplified, making it convenient and quick.

[0031] Furthermore, the filter screen 2 is a mesh plate adapted to the bottom of the barrel 1, and the upper edge of the mesh plate is provided with a handle 21, which facilitates the removal of the filter screen 2 for cleaning. In some embodiments, the filter screen 2 is installed using upper and lower mounting plates clamped together and locked with stainless steel screws, which facilitates filter cloth replacement, adjustment, mass production, and operation.

[0032] Furthermore, there are at least a plurality of barrels 1, and the sewage discharge components 3 on the plurality of barrels 1 share a sewage discharge trough 4, with each sewage discharge component 3 discharging sewage into the sewage discharge trough 4.

[0033] In the above technical solution, there are at least a few tanks 1, which together constitute the basic unit of eel farming. Each tank 1 contains a corresponding filter screen 2. The bottom of each tank 1 is connected to a shared sewage trough 4 via a sewage discharge assembly 3. These sewage discharge assemblies 3 discharge the wastewater collected in each tank 1 into the shared sewage trough 4 through pipes or valves. This sewage trough 4 is the converging channel for wastewater discharge from multiple tanks 1. It is connected to all sewage discharge assemblies 3 and centrally treats the wastewater from multiple tanks 1. The sewage trough 4 can be designed as a pipe or an open trough, facilitating the collection and further discharge of wastewater. By using multiple tanks 1 to share a single sewage trough 4, the need for separate sewage pipes 31 or troughs for each tank 1 is avoided, thus saving space. Especially when farming space is limited, this design can improve the space utilization rate of farming equipment and reduce management complexity. Specifically, the sewage discharge assembly 3 includes a sewage discharge pipe 31, one end of which is connected to the bottom of the fish toilet 11, and the other end extends into the sewage discharge tank 4.

[0034] Furthermore, the sewage discharge pipe 31 is equipped with a sewage discharge regulating valve 32 and a pneumatic / electric ball valve 33. The sewage discharge regulating valve 32 is manually controlled to control the sewage discharge flow rate, and the solenoid valve controls the opening and closing of the ball valve to achieve intelligent sewage discharge. In some embodiments, the pneumatic / electric ball valve 33 is connected to a control unit, which is used to control the opening and closing of the pneumatic / electric ball valve 33. In some embodiments, the control unit includes a PLC unit.

[0035] In some embodiments, each tank 1 is equipped with an overflow assembly 5, which includes an overflow box 51 located on the upper outer side of the tank 1. The overflow box 51 is connected to the fish toilet 11 via an overflow pipe 52. The overflow box 51 is installed on the upper outer side of the tank 1 and is typically an open structure, used to receive excess water flowing out when the water level exceeds a set height. The overflow pipe 52 connects the overflow box 51 to the fish toilet 11 at the bottom of the tank 1, forming an automatic drainage channel. When the water level in the tank 1 is too high, excess water flows into the overflow box 51 and then into the fish toilet 11 through the overflow pipe 52. In daily aquaculture, the water level in the tank 1 may rise due to water intake or feeding operations. When the water level reaches the overflow outlet height, water naturally flows into the overflow box 51, is guided by the overflow pipe 52, and this excess water is introduced into the fish toilet 11, and finally discharged by the sewage discharge assembly 3. The entire process requires no manual intervention, achieving automatic height-limited drainage, ensuring a constant water level, and preventing water pollution or eel escape caused by overflow.

[0036] Furthermore, the overflow assembly 5 also includes a return water pipe 53. One end of the return water pipe 53 extends from the bottom of the overflow box 51 into the overflow box 51, and the other end extends into the drain trough 4. The return water pipe 53 serves to return water. When the water level is high, the overflow box 51 discharges excess water into the toilet 11 through the overflow pipe 52. However, some water at the bottom of the overflow box 51 may also be partially recovered and flow back into the drain trough 4 through the return water pipe 53. This design effectively reduces water waste and improves water recycling rate. In some embodiments, the return water pipe 53 includes an adjustable movable pipe section built into the overflow box 51. The liquid level in the overflow box 51 can be controlled by adjusting the length of this pipe section. The adjustment is convenient, simple, and practical. The overflowing water is recycled and treated, and reused after meeting the standards.

[0037] Furthermore, each tank 1 is also equipped with a water inlet assembly 6, which includes an inlet pipe 61 and multiple nozzles 62. The multiple nozzles 62 are located inside the tank 1, and the inlet pipe 61 is connected to the multiple nozzles 62 to supply water to them. The inlet pipe 61 is the main water supply pipe of the system, responsible for delivering external water to the inside of the tank 1. By connecting to the multiple nozzles 62, the inlet pipe 61 ensures that the water flow can be evenly distributed throughout the entire tank 1. The multiple nozzles 62 are distributed inside the tank 1 to spray water evenly from the inlet pipe 61 into the tank 1. The number, type, and arrangement of the nozzles 62 can be designed according to the size of the tank 1 and the water flow requirements to ensure the uniformity of the water flow and the stability of the water quality.

[0038] In some embodiments, each nozzle 62 is a duckbill nozzle, which typically employs a unique duckbill shape design to produce a wide mist or fan-shaped spray with good water flow distribution. The duckbill nozzle has a larger opening, allowing the sprayed water to cover a wider area and providing a more uniform flow, avoiding the concentrated spray pattern of traditional nozzles and thus reducing the problem of excessively strong or weak local water flow.

[0039] This new type of equipment is mainly applied to modular production and aquaculture. The aquaculture tanks can be flexibly arranged and combined according to the site conditions, forming an eel aquaculture device 100. The eel aquaculture device 100 is assembled in sequence. First, the tank body 1 is placed in the designated position, and the water inlet component 6 is installed. Then, the upper and lower clamps of the aquaculture platform and the filter screen 2 are assembled and placed directly inside the tank body 1, dividing the tank body 1 into upper and lower layers. After that, the sewage discharge component 3 and the overflow component 5 are installed. After the installation of each tank body unit is completed, the water inlet, drainage, return water, and aeration pipe groups are connected according to the site layout, and the entire aquaculture circulation system is completed. After the system is built, the length of the overflow pipe 52 is adjusted to achieve a suitable water depth; the aeration device is turned on to ensure the oxygen content of the water; and the timed and fixed-point water inlet and sewage discharge are controlled by PLC to ensure water cleanliness and temperature, achieving high-quality aquaculture standards.

[0040] This new type of eel farming device has advantages such as miniaturization, modularity, and easy integration. It can uniformly control water temperature, optimize sewage discharge structure, provide a high-quality farming environment, improve survival rate and yield, reduce waste, and lower costs.

[0041] The mechanisms, components, and parts in this invention that are not specifically described are all existing structures in the prior art and can be purchased directly from the market.

[0042] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A device for farming eels, characterized in that, include: At least one bucket body, each bucket body having a fish toilet connected to its bottom, with the eel located inside the bucket body; At least one filter screen, the number of which is the same as the number of at least one bucket, and they correspond one-to-one. Each filter screen is laid on the inner bottom of the corresponding bucket, and the eel is located on the filter screen. At least one sewage discharge component, the number of which is the same as the number of at least one bucket body, and they correspond one-to-one. Each sewage discharge component is connected to a corresponding fish toilet and is used to discharge sewage from the fish toilet.

2. The eel farming device according to claim 1, characterized in that, The filter screen is a mesh plate that fits the bottom of the barrel, and the upper edge of the mesh plate is provided with a handle.

3. The eel farming device according to claim 1, characterized in that, There are at least one barrel, and there are multiple barrels. The sewage discharge components on the multiple barrels share a sewage discharge trough, and each sewage discharge component discharges sewage into the sewage discharge trough.

4. The eel farming device according to claim 3, characterized in that, The sewage discharge assembly includes a sewage discharge pipe, one end of which is connected to the bottom of the fish toilet, and the other end extends into the sewage discharge trough.

5. The eel farming device according to claim 4, characterized in that, The sewage discharge pipe is equipped with a sewage discharge regulating valve and a pneumatic / electric ball valve.

6. The eel farming device according to claim 5, characterized in that, The pneumatic / electric ball valve is connected to a control unit, which is used to control the opening and closing of the sewage regulating valve.

7. The eel farming device according to claim 3, characterized in that, Each bucket is equipped with an overflow assembly, which includes an overflow box located on the upper outer side of the bucket. The overflow box is connected to the fish toilet via an overflow pipe.

8. The eel farming device according to claim 7, characterized in that, The overflow assembly also includes a return water pipe, one end of which extends from the bottom of the overflow box into the overflow box, and the other end extends into the drain trough.

9. The eel farming device according to claim 1, characterized in that, Each tank is also equipped with a water inlet assembly, which includes a water inlet pipe and multiple nozzles. The multiple nozzles are located inside the tank, and the water inlet pipe is connected to the multiple nozzles to deliver water to them.

10. The eel farming device according to claim 1, characterized in that, Each nozzle is a duckbill nozzle.

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