A fish collecting device

Abstract

The application discloses a fish collecting device, which comprises a net frame structure, a fish storage box and a fish suction mechanism. The outer periphery of the net frame structure is used to contact with the inner wall of the fish storage box. The net frame structure comprises a frame structure and a fishing net. The outer surface of the frame structure is covered with the fishing net. The inside of the frame structure is provided with a cavity for storing gas. The fish suction mechanism comprises a fish suction pump and a fish suction pipe. The fish suction pump is arranged on one side of the frame structure. One end of the fish suction pipe is connected with the fish suction pump. The other end of the fish suction pipe is used to connect with an external space. The cavity for storing gas is arranged in the inside of the frame structure. The gas provides buoyancy for the frame structure. The fish suction pump provides downward pressure. The frame structure is slowly moved downward. The activity space of the cultured fish in the fish storage box is gradually compressed. The fish gathered together is sucked by the fish suction pump. When the fish suction pump stops working, the frame structure is automatically floated to the water surface under the action of the buoyancy. The fish collecting device has the advantages of high fish collecting efficiency, high operation safety and low operation labor intensity.

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