Crab breeding device

Abstract

A crab breeding device is mainly used for breeding crabs, a main body of the crab breeding device is a cuboid crab frame with four sides provided with silk screens, a feeding port capable of being turned over is formed in the middle of a frame plate at the top of the crab frame, two crab house groups which are horizontally placed are installed in the crab frame, each crab house is of a cylinder structure with the front portion narrow and the rear portion wide, and each crab house group is formed by horizontally stacking a plurality of crab houses up and down. One end of a large barrel opening of the outer crab house is bound through a binding belt, the narrow opening ends of the crab houses are clamped through vertical fixing clamping pieces, the narrow openings of the two crab house groups are opposite, and a gap is formed between the two crab house groups; a submersible propeller is arranged at the bottom end of the crab frame and connected with a horizontal pipeline, small holes are formed in the pipeline, the holes of the pipeline face the crab houses, a horizontal branch pipe is arranged in the middle of the pipeline, and the outlet end of the branch pipe faces the middle gap of the two crab house sets. The device has the characteristics of simple structure and high juvenile crab survival rate.

Description

Technical Field

[0001] The utility model relates to an aquaculture device, mainly used for crab farming. Background Art

[0002] The existing crab farming adopts enclosing or single cage farming. This method increases the farming quantity, but the management of this device is difficult, and intensive farming cannot be achieved. When all crabs are farmed collectively, the mutual cannibalism between crabs is relatively serious, and the individual differences are large. Due to the reason of the geographical area during catch, the catch rate is usually relatively low.

[0003] The existing patent (application number: CN202222068080.7) discloses a cage for crab farming, including a first rectangular frame. A first U-shaped frame is installed at the top of the first rectangular frame. An N-shaped frame is hinged to one side wall of the first U-shaped frame. A connecting rod is hinged to one side wall of the N-shaped frame. A second rectangular frame is arranged directly above the connecting rod. A second U-shaped frame is installed at the bottom of the second rectangular frame, and the connecting rod is hinged to the second U-shaped frame. A fishing net cloth is arranged at the top of the first rectangular frame, and the top of the fishing net cloth is connected to the second rectangular frame. A first connecting plate is installed on one side wall of the first rectangular frame. By setting the first rectangular frame, the first U-shaped frame, the N-shaped frame, the connecting rod, the second rectangular frame, the second U-shaped frame, the fishing net cloth, the first connecting plate, the cylinder, the second connecting plate, the threaded rod and the screwing block, the whole can be folded, so that the space occupied by the whole can be reduced and it is more convenient to carry, which is relatively practical. However, when all crabs are placed inside, mutual cannibalism among crabs is likely to occur. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a crab farming device with a simple structure and high survival rate of crab seedlings in view of the deficiencies of the existing technical devices.

[0005] Specifically, it is implemented as follows. A crab farming device has a main body which is a crab frame in the shape of a cuboid with wire meshes installed on four sides. In the middle of the frame board at the top of the crab frame, there is a feeding port that can be opened. Inside the crab frame, two groups of horizontally placed crab houses are installed. Each crab house is a cylindrical column structure that is narrow at the front and wide at the back. Each group consists of several crab houses stacked horizontally up and down, and the large barrel mouth end of the outer crab house is tied with a binding strap, and the narrow mouth end of the crab house is clamped by a vertical fixing card. The narrow mouths of the two groups of crab houses face each other, and there is a gap spacing at one end between the two groups; at the bottom end of the crab frame, there is a submersible thruster, which is connected to a horizontal pipe. Small holes are provided on the pipe, and the pipe holes face the crab houses. There is a horizontal branch pipe in the middle of the pipe, and the outlet end of the branch pipe faces the middle gap between the two groups of crab houses.

[0006] When culturing crabs, place the crab seedlings in each crab house, form a crab house group and put it into a crab frame, then place it in a crab pond. Open the feeding port to feed the bait, and at the same time start the submersible propeller. The bait is washed into each crab house through the propelling water flow in the branch pipe. Each crab is in the crab house, reducing mutual cannibalism and increasing the survival rate.

[0007] Further, the plate frame at the top of the crab frame and the frame structure are connected by a hinge and can be turned up to load the crab house.

[0008] Further, there is an underwater light source system on the top frame of the crab frame, which is turned on in long-term rainy weather to supplement light.

[0009] Further, an ultraviolet lamp device is installed on the bottom frame of the crab frame to irradiate and sterilize the water body regularly.

[0010] Further, lifting lugs are provided at the top of the crab frame for easy transportation and lifting.

[0011] Further, the gap distance between two groups of crab house groups is 20 - 30 cm.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. Using a single crab house for isolated breeding of crab seedlings can reduce mutual cannibalism of crab seedlings and increase the survival rate.

[0014] 2. By setting up a submersible propeller, the water flow mobility is improved and the water quality is improved, which is beneficial to the reproduction of crab seedlings.

[0015] 3. By setting up a light source and a sterilization device, the light is supplemented and the water body is sterilized, which can improve the survival rate of crab seedlings. Description of the Drawings

[0016] Figure 1 It is a structural schematic diagram of the present utility model.

[0017] Figure 2 It is a schematic diagram of installing crab houses in the frame of the crab frame.

[0018] Figure 3 It is a right view of installing crab houses in the crab frame

[0019] Figure 4 It is a bottom view of the crab frame

[0020] In the figure: 1 crab frame, 2 crab house, 3 fixed card, 4 feeding port, 5 lifting lug, 6 binding strap, 7 hinge, 8 ultraviolet lamp device, 9 underwater light source system, 10 wire mesh, 11 submersible propeller, 12 pipeline, 13 small hole, 14 branch pipe Detailed Embodiment

[0021] Embodiment 1

[0022] AsFigure 1 , Figure 2 , Figure 3 , Figure 4 As shown in Figure 1 , Figure 2 , Figure 3 , and Figure 4 , a crab breeding device has a main body of a cuboid crab frame 1 with wire meshes 10 installed on four sides. The plate frame at the top of the crab frame 1 is connected to the frame structure by a hinge 7 and can be turned up to load crab houses. There is a feed inlet 4 that can be opened in the middle of the frame plate at the top of the crab frame 1. An underwater light source system 9 is installed on the top frame of the crab frame 1 and is turned on during long-term rainy weather to supplement light. An ultraviolet lamp device 8 is installed on the bottom frame of the crab frame 1 to regularly irradiate and sterilize the water body. Lifting lugs 5 are provided at the top of the crab frame 1 for easy transportation and lifting. Two groups of horizontally placed crab houses 2 are installed inside the crab frame 1. Each crab house 1 has a cylindrical column structure that is narrow at the front and wide at the back. Each group consists of several crab houses 1 stacked horizontally up and down, and the large barrel mouth end of the outer crab house 1 is tied with a binding strap 6, and the narrow mouth end of the crab house 1 is clamped by a vertical fixing card 3. The narrow mouths of the two groups of crab houses 2 face each other, and there is a gap spacing at one end between the two groups. There is a submersible thruster 11 at the bottom end of the crab frame 1. The submersible thruster 11 is connected to a horizontal pipe 12. Small holes 12 are provided on the pipe 12, and the pipe holes face the crab houses 2. There is a horizontal branch pipe 14 at the middle position of the pipe, and the outlet end of the branch pipe faces the middle gap between the two groups of crab houses 2. The gap spacing between the two groups of crab houses 2 is 20 - 30 cm.

[0023] When breeding crabs, crab seedlings are placed in each crab house 2. After forming a group of crab houses 2, they are put into the crab frame 1 and then placed in a crab pond. The feed inlet 4 is opened to feed bait. At the same time, the submersible thruster 11 is started, and the bait is washed into each crab house 2 by the propelling water flow in the branch pipe 14. Each crab is inside the crab house 2, reducing mutual cannibalism and increasing the survival rate.

Claims

1. A crab breeding device, the main body of which is a crab frame in the shape of a cuboid with wire meshes installed on four sides, and there is a feed inlet that can be opened in the middle of the frame board at the top of the crab frame, and its characteristics are as follows: Inside the crab frame, there are two horizontally placed crab house groups installed. Each crab house is a cylindrical column structure that is narrow in the front and wide in the back. Each group consists of several crab houses stacked horizontally on top of each other. The large opening end of the outer crab house is tied with a strap, and the narrow end of the crab house is clamped by a vertical fixing card. The narrow ends of the two crab house groups face each other, and there is a gap spacing at one end between the two groups. At the bottom of the crab frame, there is a submersible thruster, which is connected to a horizontal pipe. The pipe is provided with small holes, and the pipe holes face the crab houses. There is a horizontal branch pipe in the middle of the pipe, and the outlet end of the branch pipe faces the middle gap between the two crab house groups.

2. The crab farming device according to claim 1, characterized in that: The plate frame on the top of the crab frame is connected to the frame structure by a hinge.

3. The crab breeding device according to claim 1, characterized in that: There is an underwater light source system on the top frame of the crab frame.

4. A crab breeding device according to claim 1, characterized in that: An ultraviolet lamp device is installed on the bottom frame of the crab frame.

5. The crab breeding device according to claim 1, characterized in that: Lifting lugs are provided on the top of the crab frame.

6. The crab breeding device according to claim 1, characterized in that: The gap spacing between the two crab house groups is 20 - 30 centimeters.

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