Suspension type three-dimensional ricefield eel breeding device

Abstract

The utility model discloses a suspension type three-dimensional ricefield eel breeding device which comprises a breeding pond, a suspension net cage is installed on the pond wall of the breeding pond in a suspension mode, an inclined pond bottom is arranged at the bottom of the breeding pond in the direction from the water inlet end to the sewage discharging end, and a concave sewage collecting groove is formed in the lower end of the inclined pond bottom in the width direction of the breeding pond. A sewage discharging pipe is arranged in the sewage collecting groove, a sewage discharging valve is installed on the sewage discharging pipe, an oxygenation water pushing device is installed at the high end of the inclined pond bottom and connected with an inflation pipe, and the side, away from the sewage collecting groove, of the culture pond is connected with a water inlet pipe. According to the suspension type three-dimensional ricefield eel breeding device, three-dimensional breeding of fish and ricefield eels is achieved, excrement, residual feed and other sundries are not prone to accumulation in the breeding process, and ricefield eel fishing is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the technical field of aquaculture equipment, specifically a suspended three-dimensional eel farming device. Background Technology

[0002] The swamp eel, belonging to the class Pisces, order Synbranchia, family Synbranchidae, and subfamily Sphaeroideae, is one of my country's important economic fish species. In nature, it prefers to inhabit still, slightly acidic water environments with abundant decaying matter. Its gills are underdeveloped; in shallow water, it holds its anterior half upright, drawing air into its mouth and storing it in its oral cavity and throat, respiring through the inner lining of these spaces. It feeds on various small animals, is voracious, and its preferred feed habits are not easily changed. Swamp eels are tolerant of low oxygen levels and can be farmed at high density in shallow water and small ponds, making them well-suited for both small-scale rural backyard farming and intensive, factory-style aquaculture.

[0003] Currently, there are three main methods of eel farming: still-water eel farming in cement ponds, flowing-water eel farming, and pond cage eel farming. The first method is still-water eel farming in cement ponds. This method is characterized by low water exchange, with mud at the bottom for eels to burrow or artificial structures for them to inhabit. The water depth is about 10 cm, and aquatic plants are planted in the middle. The second method is flowing-water eel farming. This method is characterized by its small footprint, high stocking density, rapid growth, high yield, and convenient management and harvesting. The third method is pond cage eel farming, which is currently the largest-scale farming method. It involves setting up cages in the pond to raise eels, and cultivating water hyacinth and water lettuce in the cages.

[0004] With the depletion of natural eel resources and the increase in market demand, cage farming of eels is increasingly developing towards intensive methods. Traditional high-density cage farming easily leads to the accumulation of excrement, uneaten feed, and the remains of dead organisms, polluting the water, breeding harmful pathogens, and causing a decrease in dissolved oxygen and an increase in harmful substances. If not cleaned up promptly, this quickly leads to water quality deterioration and the death of farmed organisms; furthermore, eel harvesting is cumbersome. Therefore, a suspended, three-dimensional eel farming system that avoids the accumulation of debris and facilitates eel harvesting is needed. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the prior art by providing a suspended three-dimensional eel farming device. This device enables three-dimensional farming of fish and eels, and during the farming process, it is not easy for excrement, uneaten feed, and other debris to accumulate, making eel harvesting convenient and quick.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A suspended three-dimensional eel farming device includes a farming pond. Suspended net cages are suspended on the walls of the farming pond. The bottom of the farming pond is inclined from the water inlet to the sewage outlet. A recessed sewage collection trough is provided at the lower end of the inclined pond along the width of the farming pond. A sewage discharge pipe is installed in the sewage collection trough and a sewage discharge valve is installed on the sewage discharge pipe. An oxygenation and water pushing device is installed at the upper end of the inclined pond bottom and is connected to an air inflation pipe. A water inlet pipe is connected to the side of the farming pond away from the sewage collection trough. If the water inlet pipe is connected to a tap water pipe, a water inlet valve is installed on the water inlet pipe.

[0008] A further preferred embodiment: the bottom of the sludge collection trough is inclined, and it is designed in two stages along the width of the aquaculture pond, with the sewage pipe located on the lowest side of the sludge collection trough.

[0009] A further preferred embodiment: The suspended net cage includes a square outer frame, with protruding ears on opposite sides of the square outer frame for limiting and supporting it on the wall of the aquaculture pond. An aquaculture net is suspended inside the square outer frame. The aquaculture net is cuboid in shape, and its cross-sectional area is the same as that of the inner frame of the square outer frame. The four corners of the top of the aquaculture net are connected to the four corners of the square outer frame by ropes. A supporting inner frame for supporting the opening of the aquaculture net is placed inside the aquaculture net, and the two ends of the supporting inner frame are limited and supported on the square outer frame.

[0010] A further preferred embodiment: the supporting inner frame includes a square top frame assembled from two horizontal bars and two vertical bars. The outer frame size of the square top frame is not larger than the inner frame size of the square outer frame. The two ends of the horizontal or vertical bars of the square top frame extend outward to limit and support the square outer frame. A U-shaped rod for supporting the opening of the aquaculture net is connected to the bottom of each side of the square top frame. A connecting rod is connected at the same height on both sides between the two U-shaped rods. Feeding platform mounting ears are provided on the two connecting rods for placing the feeding platform.

[0011] A further preferred embodiment: the two uprights of the U-shaped rod are connected by a reinforcing connecting rod, the height of which is the same as that of the connecting rod, which facilitates the connection and support of the aquaculture net, allowing the eels to inhabit the aquaculture net.

[0012] A further preferred embodiment: the inner sides of the two horizontal or vertical bars of the square top frame are respectively provided with lifting lugs to facilitate lifting the inner support frame.

[0013] A further preferred embodiment: The inner side of the crossbar or longitudinal bar is fixedly provided with a hinge ear, and the lifting ear is hinged to the hinge ear. When the lifting ear is released, the lifting ear will naturally droop down. When it is necessary to lift the inner support frame, the lifting ear can be pulled upward to lift and separate the inner support frame, so that the aquaculture net can be gathered and harvested.

[0014] This suspended eel aquaculture system consists of a culture pond and a suspended net cage. The two ends of the suspended net cage are respectively supported on the sides of the culture pond. The net cage is suspended in the culture pond. The bottom of the culture pond is sloped along its length. A recessed sludge collection trough is located at the lower end of the sloped bottom along the width of the culture pond. A sludge discharge pipe with a sludge discharge valve is installed in the sludge collection trough. An oxygenation and water-pushing device is installed at the higher end of the sloped bottom, connected to an air-inflating pipe. A water inlet pipe is connected to the side of the culture pond furthest from the sludge collection trough. Fish can be raised in the culture pond, while eels are raised in the suspended net cage, achieving integrated fish and eel aquaculture. During the aquaculture process, it is less prone to the accumulation of excrement, uneaten feed, and other debris, and the eel harvesting is convenient and quick. The suspended net cage consists of a square outer frame with protruding ears on opposite sides for securing it to the pond wall. A cuboid net hangs inside the square frame, its cross-sectional area matching the area of ​​the inner frame. The four corners of the net are connected to the four corners of the outer frame by ropes. An inner support frame is placed inside the net to support its opening. The inner support frame is secured to the outer frame at both ends. Lifting the inner support frame separates the net from the outer frame, allowing for easy and quick harvesting. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this suspended three-dimensional eel farming device;

[0016] Figure 2 This is a structural schematic diagram of a suspended gabion cage;

[0017] Figure 3 This is a structural diagram of a square outer frame;

[0018] Figure 4 This is a schematic diagram of the structure supporting the inner frame;

[0019] Figure 5 yes Figure 4 A top-down view;

[0020] Figure 6 yes Figure 4 A left-view diagram;

[0021] The names corresponding to the serial numbers in the figure are:

[0022] 1. Aquaculture pond; 2. Oxygenating and water-pushing device; 3. Air inlet pipe; 4. Inclined pond bottom; 5. Inlet valve; 6. Inlet pipe; 7. Suspended net cage; 8. Sludge collection trough; 9. Sludge discharge pipe; 10. Sludge discharge valve; 11. Square outer frame; 12. Aquaculture net; 13. Supporting inner frame; 14. Horizontal bar; 15. Hinge lug; 16. Lifting lug; 17. Feeding platform; 18. Feeding platform mounting lug; 19. Vertical bar; 20. U-shaped bar; 21. Connecting bar; 22. Reinforcing connecting bar. Detailed Implementation

[0023] To provide a more detailed description of this utility model, the following description, in conjunction with the embodiments and accompanying drawings, will further illustrate this utility model. Example

[0024] A suspended three-dimensional eel farming device includes a farming pond 1. A suspended net cage 7 is suspended on the wall of the farming pond 1. The bottom of the farming pond 1 is provided with an inclined pond bottom 4 from the water inlet end to the sewage outlet end. A recessed sewage collection trough 8 is provided at the lower end of the inclined pond bottom 4 along the width direction of the farming pond 1. A sewage discharge pipe 9 is provided in the sewage collection trough 8. A sewage discharge valve 10 is installed on the sewage discharge pipe 9. An oxygenation and water pushing device 2 is installed at the upper end of the inclined pond bottom 4. The oxygenation and water pushing device 2 is connected to an air inflation pipe 3. A water inlet pipe 6 is connected to the side of the farming pond 1 away from the sewage collection trough 8. If the water inlet pipe 6 is connected to a tap water pipe, a water inlet valve 5 is installed on the water inlet pipe 6.

[0025] The bottom of the sludge collection trough 8 is inclined and is designed in two stages in the width direction of the aquaculture pond 1. The sewage pipe 9 is located on the lowest side of the sludge collection trough 8.

[0026] The suspended net cage 7 includes a square outer frame 11. The square outer frame 11 has protruding ears on opposite sides for limiting and supporting the cage on the wall of the aquaculture pond 1. An aquaculture net 12 is suspended inside the square outer frame 11. The aquaculture net 12 is cuboid in shape, and the cross-sectional area of ​​the aquaculture net 12 is the same as the area of ​​the inner frame of the square outer frame 11. The four corners of the top of the aquaculture net 12 are connected to the four corners of the square outer frame 11 by ropes. A supporting inner frame 13 is placed inside the aquaculture net 12 to support the opening of the aquaculture net 12. The two ends of the supporting inner frame 13 are limited and supported on the square outer frame 11.

[0027] The inner support frame 13 includes a square top frame assembled from two horizontal bars 14 and two vertical bars 19. The outer frame size of the square top frame is not larger than the inner frame size of the square outer frame 11. The two ends of the horizontal bars 14 or vertical bars 19 of the square top frame extend outward to limit and support the square outer frame 11. A U-shaped rod 20 for supporting the opening of the breeding net 12 is connected to the bottom of each side of the square top frame. A connecting rod 21 is connected at the same height on both sides between the two U-shaped rods 20. Feeding platform mounting ears 18 for placing the feeding platform 17 are provided on the two connecting rods 21.

[0028] A reinforcing connecting rod 22 is connected between the two uprights of the U-shaped rod 20. The height of the reinforcing connecting rod 22 is the same as that of the connecting rod 21, which facilitates the connection and support of the aquaculture partition net.

[0029] The inner sides of the two horizontal bars 14 or vertical bars 19 of the square top frame are respectively provided with lifting lugs 16 to facilitate lifting the inner frame 13.

[0030] A hinge ear 15 is fixedly provided on the inner side of the crossbar 14 or the longitudinal bar 19, and the lifting ear 16 is hinged to the hinge ear 15.

[0031] The above description is not intended to limit the present utility model, nor is the present utility model limited to the above examples. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should be protected by the present utility model.

Claims

1. A suspended three-dimensional aquaculture device for yellow eels, comprising an aquaculture pond (1), characterized in that: The aquaculture pond (1) is suspended with a suspended net cage (7) on the pond wall. The bottom of the aquaculture pond (1) is set with an inclined pond bottom (4) from the water inlet end to the sewage outlet end. The lower end of the inclined pond bottom (4) is set with a recessed sludge collection trough (8) along the width direction of the aquaculture pond (1). A sewage discharge pipe (9) is set in the sludge collection trough (8). A sewage discharge valve (10) is installed on the sewage discharge pipe (9). An oxygenation and water pushing device (2) is installed at the upper end of the inclined pond bottom (4). An air inflation pipe (3) is connected to the oxygenation and water pushing device (2). A water inlet pipe (6) is connected to the side of the aquaculture pond (1) away from the sludge collection trough (8).

2. The suspended three-dimensional eel farming device according to claim 1, characterized in that: The bottom of the sludge collection trough (8) is inclined and is designed in two stages in the width direction of the aquaculture pond (1). The sewage pipe (9) is located on the lowest side of the sludge collection trough (8).

3. The suspended three-dimensional eel farming device according to claim 1, characterized in that: The suspended net cage (7) includes a square outer frame (11). The square outer frame (11) has protruding ears on opposite sides for limiting and supporting the aquaculture pond (1) wall. An aquaculture net (12) is suspended inside the square outer frame (11). The aquaculture net (12) is in the shape of a cube. The cross-sectional area of ​​the aquaculture net (12) is the same as the area of ​​the inner frame of the square outer frame (11). The top four corners of the aquaculture net (12) are connected to the four corners of the square outer frame (11) by ropes. A supporting inner frame (13) is placed inside the aquaculture net (12) for supporting the opening of the aquaculture net (12). The two ends of the supporting inner frame (13) are limited and supported on the square outer frame (11).

4. The suspended three-dimensional eel farming device according to claim 3, characterized in that: The supporting inner frame (13) includes a square top frame assembled from two horizontal bars (14) and two vertical bars (19). The outer frame size of the square top frame is not larger than the inner frame size of the square outer frame (11). The two ends of the horizontal bars (14) or vertical bars (19) of the square top frame extend outward to limit the support on the square outer frame (11). A U-shaped bar (20) for supporting the opening of the breeding net (12) is connected to the bottom of each side of the square top frame. A connecting rod (21) is connected at the same height on both sides between the two U-shaped bars (20). Feeding platform mounting ears (18) for placing the feeding platform (17) are provided on the two connecting rods (21).

5. The suspended three-dimensional eel farming device according to claim 4, characterized in that: The two uprights of the U-shaped rod (20) are connected by a reinforcing connecting rod (22), and the height of the reinforcing connecting rod (22) is the same as that of the connecting rod (21).

6. The suspended three-dimensional eel farming device according to claim 4, characterized in that: The inner sides of the two horizontal bars (14) or vertical bars (19) of the square top frame are respectively provided with lifting ears (16) to facilitate lifting the inner frame (13).

7. The suspended three-dimensional eel farming device according to claim 6, characterized in that: The inner side of the crossbar (14) or the vertical bar (19) is fixedly provided with a hinge ear (15), and the lifting ear (16) is hinged to the hinge ear (15).

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