Crab recirculating aquaculture device

Abstract

The utility model discloses a crab culture device, in particular to a crab circulating water culture device, which is structurally characterized in that a water inlet pipe is hermetically butted with a pipe connector part I of a water inlet channel on the bottom surface of a circular pool body and straightly extends towards the mouth of the circular pool body, and a pipe sleeve is sleeved outside the water inlet pipe and is butted with the bottom surface of the circular pool body through a plate body part for limiting; the side face of the barrel part, the disc face of the disc part and the side face of the round pond body jointly define a crab breeding area, a gap area is reserved between the side face of the disc part and the side face of the round pond body, only residual feed and crab excrement can pass through the gap area, and the partition plate is magnetically attracted to the side face of the barrel part. The partition plates are arranged at intervals in the circumferential direction of the cylinder part. The technical problem of improving the flexibility and convenience of crab culture management and operation is solved. The number and the size of the breeding units can be adjusted according to the crab growth stage and the breeding requirement, and residual feed and crab excrement in the crab breeding process can be conveniently discharged and cleaned.

Description

Technical Field

[0001] This utility model relates to a crab farming device, and more particularly to a crab recirculating aquaculture system. Background Technology

[0002] Recirculating aquaculture is an efficient and environmentally friendly crab farming model. By recycling the aquaculture water through a water treatment system, it can effectively save water resources and reduce environmental pollution.

[0003] Traditional recirculating aquaculture systems for crabs typically use fixed partitions to prevent crabs from escaping or cannibalizing each other. These systems consist of a frame (usually made of PVC or stainless steel) and netting (made of nylon or polyethylene). The frame and netting are cut to size according to the pond dimensions, and the mesh size is selected based on the size of the crabs. The frame is fixed to the side wall or bottom of the pond using bolts or clips, and the netting is secured to the frame using binding or clamping devices.

[0004] The above-mentioned recirculating aquaculture system for crabs has the following shortcomings:

[0005] 1. Poor flexibility: Fixed partitions cannot adjust the number and size of breeding units according to the growth stage of crabs and breeding needs, which increases the difficulty of breeding management and limits breeding efficiency.

[0006] 2. Inconvenient operation: The installation and disassembly of fixed partitions are cumbersome, increasing the difficulty of sewage discharge and cleaning.

[0007] Therefore, the applicant proposes this utility model. Summary of the Invention

[0008] The purpose of this invention is to address the shortcomings of the prior art by providing a crab recirculating aquaculture system that, through structural design optimization, allows for the adjustment of the number and size of aquaculture units according to the growth stage and aquaculture needs of crabs. This facilitates the discharge and cleaning of leftover feed and crab excrement during crab farming, thereby improving the flexibility and convenience of crab farming management and operation.

[0009] To achieve the above objectives, the present invention provides a crab recirculating aquaculture system, the structure of which includes:

[0010] The aquaculture pond is circular in shape and is independently connected to the inside and outside of the circular pond through a water inlet channel and a water outlet channel at the bottom. The water inlet channel forms a pipe interface on the bottom surface of the circular pond and is coaxially distributed with the circular pond. The water outlet channel forms a drain outlet on the bottom surface of the circular pond.

[0011] Water inlet pipe;

[0012] A magnetic sleeve includes a cylindrical part, a disc part formed by increasing the diameter at the end of the cylindrical part, and a plate part formed by bending the periphery of the disc part away from the cylindrical part and spaced apart in the circumferential direction of the disc part.

[0013] In addition, the magnetic partition has a concave curved surface on its side, which is consistent with the curvature of the side of the cylindrical part.

[0014] The inlet pipe, sleeve, and partition are all placed inside the circular pool. One end of the inlet pipe is sealed to the connector and extends directly toward the pool opening. The sleeve extends to the outside of the inlet pipe and is positioned against the bottom of the circular pool via the plate. The side of the cylindrical part, the plate surface of the plate part, and the side of the circular pool together form the crab farming area. A gap is reserved between the side of the plate part and the side of the circular pool for the passage of leftover feed and crab excrement. The concave curved side of the partition is magnetically attached to the side of the cylindrical part. The partitions are spaced apart in the circumferential direction of the cylindrical part, and each pair of partitions forms an independent individual crab farming unit.

[0015] In the structural design of this recirculating aquaculture system for crabs, a sleeve consisting of a cylindrical section, a disc section, and a plate section is first inserted into the circular body of the aquaculture pond. A crab farming area is formed above the disc section, which acts as a false bottom for the circular pond. Residual feed and crab excrement generated during crab farming are washed away from the disc section and mixed with the circulating water. Under the influence of the potential and kinetic energy of the circulating water, the waste flows through the gap between the side of the disc section and the side of the circular pond, flowing down to the bottom of the disc section and then being discharged through the drain outlet on the bottom of the circular pond. This prevents residual feed and crab excrement from remaining in the crab farming area for extended periods. This design avoids polluting the crab farming environment by allowing leftover feed and crab excrement to linger and pollute the environment. It also facilitates the removal and cleaning of waste. Furthermore, partitions are placed within the crab farming area, which is formed by the sides of the cylindrical section, the surface of the disc section, and the sides of the circular pool. These partitions are then magnetically attached to the sides of the cylindrical section. By arranging all the partitions at intervals along the circumference of the cylindrical section, each adjacent partition forms an independent individual crab farming unit. This allows for adjustments to the number and size of crab farming units during the crab cyclic farming process, based on the crab's growth stage and farming needs, by increasing or decreasing the number of partitions and adjusting the spacing between adjacent partitions. This improves the flexibility and convenience of crab farming management and operation.

[0016] Furthermore, this invention provides a crab recirculating aquaculture system. In its structural design, the inlet pipe exits at the center of the circular pool, while the baffles do not obstruct water flow, thus improving the uniformity of circulating water inflow across all crab farming units. Additionally, the high degree of integration between the inlet pipe and the farming pool results in a more compact structure.

[0017] Furthermore, in the aforementioned crab recirculating aquaculture device, the other end of the water inlet pipe is preferably concealed within a bore in the cylindrical body, maintaining a distance from the opening on the opposite end face of the disc body. Even further, the opposite end face of the disc body is preferably formed as a centrally arched, outwardly convex curved surface.

[0018] The crab recirculating aquaculture device provided in the above-mentioned preferred technical solution can achieve overflow water discharge by controlling the water pressure and flow rate of the outlet pipe. Due to the adhesion of the end face of the cylinder, the water overflowing from the cylinder part will first cover the entire end face (especially when the end face is a centrally arched outward convex curved surface, the adhesion phenomenon is more obvious), and then flow down along the side of the cylinder part. Therefore, it can further improve the uniformity of the recirculating water inflow (including flow rate and flow volume) in all crab farming units.

[0019] In addition, in order to increase the potential and kinetic energy of the water flow washing away the remaining feed and crab excrement on the plate surface, thereby improving the washing effect of the water flow, the structure of the above-mentioned crab recirculating aquaculture device is preferably such that the center and periphery of the plate surface are inclined towards the bottom of the circular pool. At the same time, in order not to affect the normal crawling and staying of crabs on the plate surface during the crab farming process, the inclination angle of the plate surface generally needs to be controlled at ≤30°.

[0020] In addition, in order to improve the drainage efficiency and drainage stability of the drainage channel, the drainage outlet of the above-mentioned crab recirculating aquaculture device is preferably selected as a conical hole structure.

[0021] Compared with the prior art, the crab recirculating aquaculture system obtained by this utility model has the following technical effects:

[0022] This utility model discloses a recirculating aquaculture system for crabs, which can adjust the number and size of aquaculture units according to the growth stage and aquaculture needs of crabs. It facilitates the discharge and cleaning of leftover feed and crab excrement during the crab farming process, thereby improving the flexibility and convenience of crab farming management and operation.

[0023] This invention relates to a recirculating aquaculture system for crabs, which improves the uniformity of the inflow of recirculating water (including flow rate and volume) in all crab farming units. Attached Figure Description

[0024] Figure 1 This is a top view of the first type of crab recirculating aquaculture system;

[0025] Figure 2 yes Figure 1 Sectional view at point aa;

[0026] Figure 3 yes Figure 2 A magnified view of a portion at point d in the middle;

[0027] Figure 4 yes Figure 2 A magnified view of a section at point e in the middle;

[0028] Figure 5 yes Figure 2 A magnified view of a portion at point f.

[0029] Figure 6 yes Figure 1 Sectional view at point bb;

[0030] Figure 7 This is a cross-sectional view of the second type of crab recirculating aquaculture system;

[0031] Figure 8 This is a cross-sectional view of the third type of crab recirculating aquaculture system;

[0032] Figure 9 This is a cross-sectional view of the fourth type of crab recirculating aquaculture system;

[0033] Figure 10 This is a cross-sectional view of the fifth type of crab recirculating aquaculture system.

[0034] In the diagram: 1. Aquaculture pond; 1-1. Circular pond body; 1-2. Water inlet channel; 1-2-1. Pipe interface 1; 1-2-2. Drainage channel; 1-3. Drain outlet; 1-3-1. Pipe interface 3; 2. Water inlet pipe; 3. Pipe sleeve; 3-1. Cylinder body; 3-2. Plate body; 3-3. Partition; 4. Water pipe; 5. Magnetic block; 6. Detailed Implementation

[0035] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0036] like Figure 1-6 As shown in the figure, as one embodiment of the present invention, the crab recirculating aquaculture device provided in this embodiment includes the following structure:

[0037] Aquaculture pond 1 is formed into a circular pond body 1-1, and is independently connected to the inside and outside of the circular pond body 1-1 through a water inlet channel 1-2 and a drainage channel 1-3 at the bottom. One end of the water inlet channel 1-2 forms a pipe interface part 1-2-1 on the bottom surface of the circular pond body 1-1 and is coaxially distributed with the circular pond body 1-1. The other end forms a pipe interface part 2-2-2 on the side of the aquaculture pond 1. One end of the drainage channel 1-3 forms a drain outlet 1-3-1 on the bottom surface of the circular pond body 1-1 and is located at the periphery of the bottom surface. The other end forms a pipe interface part 3-3-2 on the side of the aquaculture pond 1 and is symmetrically distributed with the pipe interface part 2-2-2.

[0038] Water inlet pipe 2;

[0039] The magnetic sleeve 3 includes a cylindrical part 3-1, a disc part 3-2 formed by increasing the diameter at the end of the cylindrical part 3-1, and plate parts 3-3 formed by bending the periphery of the disc part 3-2 away from the cylindrical part 3-1 and spaced apart in the circumferential direction of the disc part 3-2; the center and periphery of the disc part 3-2 are inclined towards the bottom surface of the circular pool 1-1, with an inclination angle ≤30°, so as not to affect the normal crawling and staying of crabs on the disc surface of the disc part 3-2 during the crab farming process;

[0040] In addition, the magnetic partition 4 has a concave curved surface on its side, and the curvature of the side of the cylindrical part 3-1 is consistent with that of the side of the cylindrical part 3-1.

[0041] The inlet pipe 2, the sleeve 3, and the partition 4 are all placed inside the circular pool 1-1. One end of the inlet pipe 2 is sealed to the pipe interface 1-2-1 and extends directly toward the opening of the circular pool 1-1. The sleeve 3 is fitted to the outside of the inlet pipe 2 and is positioned against the bottom surface of the circular pool 1-1 through the plate part 3-3. The other end of the inlet pipe 2 is flush with the opening on the opposite end face of the plate part 3-2. The side of the cylindrical part 3-1, the plate surface of the plate part 3-2, and the side of the circular pool 1-1 together form the crab farming area A. A gap area B is reserved between the side of the plate part 3-2 and the side of the circular pool 1-1 for the passage of leftover feed and crab excrement. The concave curved side of the partition 4 is magnetically adsorbed onto the side of the cylindrical part 3-1. The partitions 4 are arranged at intervals in the circumferential direction of the cylindrical part 3-1, and each pair of partitions 4 forms an independent individual crab farming unit.

[0042] The water inlet channel 1-2 and the drainage channel 1-3 in the first embodiment described above can be replaced by other structures. For example, as a second embodiment of this utility model, the crab recirculating aquaculture device provided in this embodiment has a generally consistent structure with the first embodiment described above, such as... Figure 7As shown, in this embodiment, neither the water inlet channel 1-2 nor the drainage channel 1-3 are directly connected to the side of the aquaculture pond 1. Instead, they are led out of the aquaculture pond 1 through water pipes 5 that are sealed and connected to the water inlet channel 1-2 and the drainage channel 1-3 respectively.

[0043] The first embodiment described above employs a magnetic sleeve 3 and a partition 4, which are generally recommended to be made of magnetic materials to simplify the structural design of the sleeve 3 and partition 4. However, in actual product design, the sleeve 3 and partition 4 can also be made of non-magnetic materials (such as ordinary plastic), but a magnet 6 needs to be embedded in each of the sleeve 3 and partition 4 to facilitate magnetic attraction between them. For example, as in the third embodiment of this utility model... Figure 8 As shown.

[0044] As a fourth embodiment of this utility model, the crab recirculating aquaculture device provided in this embodiment has a generally consistent structure with the aforementioned first embodiment, such as... Figure 9 As shown, however, in the crab recirculating aquaculture device provided in this embodiment, the other end of the water inlet pipe 2 is hidden inside the cylinder hole of the cylinder part 3-1, and a certain distance is maintained between it and the opening on the opposite end face of the disc part 3-2. The opposite end face of the disc part 3-2 forms a centrally arched outward convex curved surface C.

[0045] This embodiment describes a crab recirculating aquaculture device that can achieve overflow water discharge by controlling the water pressure and flow rate of the outlet pipe 5. Due to the adhesion of the end face of the cylinder 3-1, the water overflowing from the cylinder hole will first cover the entire end face (especially when the end face is a centrally arched convex curved surface C, the adhesion phenomenon is more obvious), and then flow down the side of the cylinder 3-1 simultaneously. Therefore, it can further improve the uniformity of the recirculating water inflow (including flow rate and flow volume) in all crab farming units.

[0046] As the fifth embodiment of this utility model, the crab recirculating aquaculture device provided in this embodiment has a general structure consistent with the aforementioned fourth embodiment. However, in order to improve the drainage efficiency and drainage stability of drainage channels 1-3, such as... Figure 10 As shown in the figure, the crab recirculating aquaculture device provided in this embodiment has a conical hole structure for the drain outlet 1-3-1.

[0047] In the structural design of this recirculating aquaculture device for crabs, a sleeve 3 consisting of a cylindrical part 3-1, a disc part 3-2, and a plate part 3-3 is first inserted into the circular pool body 1-1 of the aquaculture pond 1. A crab farming area A is formed above the disc part 3-2. At this time, the disc surface of the disc part 3-2 acts as a false bottom for the circular pool body 1-1. Residual feed and crab excrement generated during crab farming are washed away from the disc surface of the disc part 3-2 (when the disc part 3-2 is tilted towards the bottom of the circular pool body 1-1 from its center to its periphery, the potential and kinetic energy of the water flow washing away the residual feed and crab excrement on the disc surface of the disc part 3-2 increases, thereby enhancing the washing effect of the water flow). This mixture is then incorporated into the circulating water flow. Under the influence of the potential and kinetic energy of the circulating water flow, the water flows into the area below the disc part 3-2 through the pre-reserved gap area B between the side of the disc part 3-2 and the side of the circular pool body 1-1, and then... The drainage outlet 1-3-1 on the bottom surface of the circular pool 1-1 discharges wastewater, thereby preventing leftover feed and crab excrement from lingering in the crab farming area A and polluting the crab farming environment. It also facilitates the discharge and cleaning of leftover feed and crab excrement. Secondly, partitions 4 are placed in the crab farming area A, which is formed by the side of the cylindrical part 3-1, the plate surface of the plate part 3-2, and the side of the circular pool 1-1. The partitions 4 are then magnetically attached to the side of the cylindrical part 3-1. By arranging all the partitions 4 at intervals along the circumference of the cylindrical part 3-1, an independent individual crab farming unit is formed between each adjacent partition 4. This allows the number and size of the crab farming units to be adjusted according to the growth stage of the crabs and farming needs by increasing or decreasing the number of partitions 4 and adjusting the spacing between adjacent partitions 4, thereby improving the flexibility and convenience of crab farming management and operation.

[0048] Furthermore, in this invention, a recirculating aquaculture system for crabs features a design where the inlet pipe 2 exits at the center of the circular pool 1-1, and the partition 4 does not obstruct water flow, thus improving the uniformity of circulating water inflow across all crab farming units. Additionally, the inlet pipe 2 and the farming pool 1 have a high degree of structural integration, resulting in a more compact structure.

[0049] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A crab recirculating aquaculture system, characterized by The application relates to a crab breeding device, which comprises the following parts: a breeding pool which forms a circular pool body and is connected with the outside of the circular pool body through a water inlet channel and a water outlet channel respectively, the water inlet channel is coaxially distributed on the bottom surface of the circular pool body and forms a pipe joint part one, and the water outlet channel forms a water outlet on the bottom surface of the circular pool body; a water inlet pipe; a magnetic pipe sleeve which comprises a cylinder part, a disc part formed by increasing the diameter of the end of the cylinder part, and a plate part which is bent from the periphery of the disc part and is distributed in the circumferential direction of the disc part; a magnetic partition plate which has a concave surface on the side and is consistent with the curvature of the side of the cylinder part; wherein the water inlet pipe, the pipe sleeve and the partition plate are all arranged in the circular pool body, one end of the water inlet pipe is sealed and connected with the pipe joint part one and extends directly towards the pool opening of the circular pool body, the pipe sleeve is sleeved on the outside of the water inlet pipe and is limited by the bottom surface of the circular pool body through the plate part, the side of the cylinder part, the disc surface of the disc part and the side of the circular pool body jointly form a crab breeding area, a gap area only for remaining feed and crab excrement is reserved between the side of the disc part and the side of the circular pool body, the concave surface of the partition plate is magnetically adsorbed on the side of the cylinder part, the partition plates are arranged in the circumferential direction of the cylinder part and form independent single crab breeding units between two partition plates.

2. A crab recirculating aquaculture apparatus according to claim 1, wherein: The other end of the water inlet pipe is hidden in the cylinder hole of the cylinder part and is kept a distance from the hole on the opposite end surface of the disc part.

3. A crab recirculating aquaculture apparatus according to claim 2, wherein: The opposite end surface of the disc part forms a convex surface.

4. The crab recirculating aquaculture system of claim 1 or 2 or 3, wherein: The center of the disc part is inclined to the bottom surface of the circular pool body.

5. A crab recirculating aquaculture apparatus according to claim 1 or 2 or 3, wherein: The water outlet is a taper hole structure. ​ 6. A crab recirculating aquaculture apparatus according to claim 4, wherein: The water outlet is a taper hole structure.

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