Net sweeping structure and net cage

Abstract

The invention provides a net sweeping structure and a net cage, and relates to the technical field of mariculture. The net sweeping structure comprises a first net sweeping mechanism and a second net sweeping mechanism which are arranged in the net cage, the first net sweeping mechanism comprises a sliding part and a net body which are connected with each other, the contour shape of the net body is matched with the contour shape of the inner wall of the periphery of the net cage. The net body is connected with the inner wall of the net cage through the sliding part, and the net body is suitable for being driven by the sliding part to move in the net cage in the horizontal direction; and the second net sweeping mechanism is arranged at the end of the net cage, and the second net sweeping mechanism is suitable for rotating along with the net cage. Fish schools in the net cage are driven to the end provided with the second net sweeping mechanism through horizontal movement of the first net sweeping mechanism, primary fishing is conducted in a shallow water layer till the density of the fish schools on the top layer is reduced to a certain level, and then the second net sweeping mechanism is driven through rotation of the net cage to gather the fish schools to the shallow depth to fish remaining fishes, the fishing efficiency is improved, and the number of fishes leaking from the net cage is reduced.

Description

technical field [0001] The invention relates to the technical field of marine aquaculture, in particular to a sweeping net structure and a net cage. Background technique [0002] In traditional fishing operations, the fishing nets are usually collected by manpower or a winch, and then the fish are salvaged. However, with the development of the marine aquaculture industry, large-capacity aquaculture cages or cages are widely used. Aquaculture net cages or net cages are usually partially submerged in water and part of them are exposed to the water surface. Fishing operations are carried out in a shallow water layer at a certain depth from the water surface. , laborious, have had a strong impact on fishing efficiency. Contents of the invention [0003] The problem solved by the present invention is that in the prior art, when the scale of the culture net box or net cage is large and the water depth is deep, it is time-consuming and laborious to adopt the traditional fishing ...

AI Technical Summary

Problems solved by technology

[0003] The problem solved by the present invention is that in the prior art, when the scale of the breeding cage or net cage is large and the depth of the water is large, the traditional fishing method is time-consuming and laborious, which seriously affects the fishing efficiency.

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