A rice-fish culture suspended crab nest

Abstract

The utility model discloses a kind of rice fish culture's aerial crab nest, it is related to rice fish culture technical field, including the net of fixed in the bottom of aquaculture pond, the inside of the net is equipped with anti-escape net, the anti-escape net is also fixed in the bottom of aquaculture pond, the inside of the anti-escape net is equipped with grid plate, the grid plate and anti-escape net form crab nest, the bottom surface distance of the grid plate pool bottom thirty centimeter, the bottom of the grid plate is equipped with mounting plate, the bottom of the mounting plate is equipped with vibration motor, the bottom of aquaculture pond is also dug and is equipped with sewage collecting tank. In the utility model, by the cooperation of the grid plate of aerial, with vibration motor, can be to the silt that is produced in aquaculture and is stacked in crab nest, and silt and crab in crab nest are promptly separated, reduce the condition that crab drills mud, and the silt that shakes off is collected in sewage collecting tank, convenient to clear and collect and use.

Description

Technical Field

[0001] This utility model relates to the field of rice-fish farming technology, and in particular to a suspended crab nest for rice-fish farming. Background Technology

[0002] Crab farming is an artificial breeding technique targeting river crabs, offering significant economic benefits. Its core technologies include pond site selection, stocking of juvenile crabs, water quality management, and ecological maintenance. The expansion of farming scale has prompted the industry to optimize its technological system, such as promoting polyculture (fish and crab) and rice-crab farming models.

[0003] However, in the Yellow River floodplain, the silt accumulates quickly (more than 15cm in 3 days). The loach's living needs and habits are such that it likes to burrow into the mud. This burrowing of the loach leads to a collapse rate of more than 30% of the paddy field embankments. Therefore, a layered, anti-siltation structure is needed for the loach nest to prevent the embankments from collapsing. Utility Model Content

[0004] The purpose of this utility model is to provide a suspended crab nest for rice-fish farming in order to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A suspended crab nest for rice-fish farming includes a net fixed to the bottom of the farming pond. An escape-proof net is provided on the inner side of the net and is also fixed to the bottom of the farming pond. A mesh plate is provided inside the escape-proof net. The mesh plate and the escape-proof net form a crab nest. The bottom surface of the mesh plate is 30 centimeters away from the bottom of the pond. An installation plate is provided at the bottom of the mesh plate. A vibration motor is installed at the bottom of the installation plate. A sludge collection trough is also dug at the bottom of the farming pond.

[0006] As a further description of the above technical solution: The grid plate consists of a main frame plate, unit frames, and unit grids. Adjacent unit frames and the main frame plate are welded and fixed to the unit frames, and the unit grids are also welded and fixed to the unit frames.

[0007] As a further description of the above technical solution: The bottom of the main frame plate is provided with multiple support columns, and the main frame plate has multiple insertion holes. The top of each support column is inserted into a corresponding insertion hole, and the top of each support column is welded to the insertion hole for fixation.

[0008] As a further description of the above technical solution: The unit grid is formed by multiple hexagonal grids and is made of 304 stainless steel.

[0009] As a further description of the above technical solution: The enclosure net, escape prevention net, and support posts must all be inserted 30 centimeters into the aquaculture pond.

[0010] As a further description of the above technical solution: The enclosure net and the escape prevention net are spaced three to five meters apart, and two to three layers of ground cages are laid in between. The top of the enclosure net and the escape prevention net is one meter above the highest water level of the aquaculture pond.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: In this invention, an overhead grid plate, in conjunction with a vibrating motor, can shake off the silt generated during aquaculture and piled up in the crab nest, separating the silt from the crabs and loaches in the nest in a timely manner, reducing the occurrence of crabs and loaches burrowing into the mud, and the shaken-off silt is collected in a sludge collection trough for easy cleaning and utilization. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection between the grid plate and the support column in this utility model; Figure 3 This is a schematic diagram of the structure of the grid plate in this utility model; Figure 4 This is a front view of the present invention; Figure 5 This is a schematic diagram of the support structure in this utility model.

[0013] Legend: 1. Fence; 2. Escape prevention net; 3. Mesh panel; 4. Main frame panel; 5. Unit frame; 6. Unit mesh; 7. Support post; 8. Insertion hole; 9. Mounting plate; 10. Vibration motor. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example

[0015] like Figure 1-5As shown, a suspended crab nest for rice-fish farming includes a net enclosure 1 fixed to the bottom of the farming pond. An escape-proof net 2 is installed inside the net enclosure 1 and is also fixed to the bottom of the farming pond. A mesh plate 3 is installed inside the escape-proof net 2, forming a crab nest with the mesh plate 3. The bottom surface of the mesh plate 3 is 30 centimeters from the bottom of the pond. An installation plate 9 is installed at the bottom of the mesh plate 3, and a vibration motor 10 is installed at the bottom of the installation plate 9. A sludge collection trough is also dug at the bottom of the farming pond. The mesh plate 3 consists of a main frame 4, unit frames 5, and unit meshes 6. Adjacent unit frames 5 and the main frame 4 are welded and fixed to the unit frames 5. The unit meshes 6 are also welded and fixed to the unit frames 5. Multiple support pillars 7 are provided at the bottom of the main frame 4, and multiple insertion holes 8 are opened in the main frame 4. The top of the support column 7 is inserted into the corresponding hole 8 one by one, and the top of the support column 7 is welded to the hole 8. The unit grid 6 is formed by multiple hexagonal grids and is made of 304 stainless steel. The enclosure net 1, the escape-proof net 2 and the support column 7 are all inserted into the breeding pond by 30 centimeters. The enclosure net 1 and the escape-proof net 2 are spaced three to five meters apart, and two to three bottom cages are laid in the middle. The top of the enclosure net 1 and the escape-proof net 2 are one meter higher than the highest water level of the breeding pond. With the help of the suspended grid plate 3 and the vibration motor 10, the silt generated during breeding and piled in the crab nest can be shaken off, separating the silt from the crabs and loaches in the crab nest in time, reducing the situation of the crabs and loaches burrowing in the mud, and the shaken-off silt is collected in the sludge collection trough for easy cleaning and collection.

[0016] Working principle: When constructing the crab nest, first select a site near the shore in a shallow area with calm waters, good aquatic plant growth, and a water depth of 1.5-2 meters. First, fix the enclosure net 1 inside the breeding pond, ensuring that the installation posts of enclosure net 1 are inserted at least 30 centimeters into the pond bottom, and that the top of enclosure net 1 is one meter above the highest water level in the pond to prevent it from being submerged during the flood season. Because crabs are strong crawlers, an escape-prevention net 2 is installed inside enclosure net 1, spaced three to five meters apart, with a trap laid in between to catch any escaped crabs. The escape-prevention net 2 is at a height of [missing information - likely a height measurement]. The same degree, and the installation column of the escape-proof net 2 should be inserted into the bottom of the pool at least 30 centimeters. Then, a grid plate 3 is set inside the escape-proof net 2. The grid plate 3 is attached to the enclosure net 1 and is suspended 30 centimeters away from the bottom of the sludge collection trough at the bottom of the pool. The bottom of the grid plate 3 is equipped with a support column 7 to support the grid plate 3. Since the grid plate 3 is suspended and needs to be installed stably, the length of the support column 7 is at least 60 centimeters. At this time, the grid plate 3 and the escape-proof net 2 form a new type of crab nest. The bottom of the grid plate 3 is equipped with a vibration motor 10. The number of vibration motors 10 can be determined according to the size of the crab nest.

[0017] After the crab nest is installed and put into use, after a period of time, the vibration motor 10 is turned on. The vibration of the vibration motor 10 shakes the sludge on the grid plate 3 and the sludge falls into the sludge collection tank at the bottom. The sludge can be collected and produced biogas through anaerobic fermentation. The biogas can be used as fuel for the rice dryer (1 ton of sludge = 12m³ biogas).

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A suspended crab nest for rice-fish farming, characterized in that, The system includes a net (1) fixed to the bottom of the aquaculture pond, an escape-proof net (2) on the inner side of the net (1), the escape-proof net (2) also fixed to the bottom of the aquaculture pond, a mesh plate (3) inside the escape-proof net (2), the mesh plate (3) and the escape-proof net (2) forming a crab nest, the bottom surface of the mesh plate (3) being 30 centimeters from the bottom of the pond, an installation plate (9) at the bottom of the mesh plate (3), a vibration motor (10) installed at the bottom of the installation plate (9), and a sludge collection trough dug at the bottom of the aquaculture pond.

2. The suspended crab nest for rice-fish farming according to claim 1, characterized in that, The grid plate (3) is composed of a main frame plate (4), unit frames (5) and unit grids (6). The adjacent unit frames (5) and the main frame plate (4) are welded and fixed to the unit frames (5). The unit grids (6) are also welded and fixed to the unit frames (5).

3. A suspended crab nest for rice-fish farming according to claim 2, characterized in that, The bottom of the main frame plate (4) is provided with multiple support columns (7), and the main frame plate (4) is provided with multiple insertion holes (8). The top of the support column (7) is inserted into the insertion hole (8) one by one, and the top of the support column (7) is welded to the insertion hole (8).

4. A suspended crab nest for rice-fish farming according to claim 2, characterized in that, The unit grid (6) is formed by multiple hexagonal grids and is made of 304 stainless steel.

5. A suspended crab nest for rice-fish farming according to claim 3, characterized in that, The enclosure net (1), escape prevention net (2), and support post (7) should all be inserted into the aquaculture pond by 30 centimeters.

6. A suspended crab nest for rice-fish farming according to claim 1, characterized in that, The enclosure net (1) and the escape prevention net (2) are spaced three to five meters apart, and two to three layers of ground cages are laid in between. The top of the enclosure net (1) and the escape prevention net (2) is one meter higher than the highest water level of the aquaculture pond.

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