In-net anti-extrusion fishing boat trawling device applied to marine fishery engineering

Abstract

The invention discloses an in-net anti-extrusion fishing boat trawling device applied to marine fishery engineering, and belongs to the technical field of marine engineering equipment. The in-net anti-extrusion fishing boat trawling device comprises a traction structure, a fishing structure, an inner cavity partitioning structure and a spiral driving structure; a hull structure is in transmission connection with the fishing structure through the traction structure, so that the fishing structure can synchronously advance underwater along with the hull structure to complete fishing; in the fishing process, the spiral driving structure can synchronously advance along with the fishing structure, the spiral driving structure can be stressed to automatically generate rotating kinetic energy when advancing, the rotating kinetic energy is transmitted to water in the fishing structure, and the water is stirred to spirally flow backwards; and fishing games entering the fishing structure are gradually shunted to a plurality of different positions formed by separating the interior of the fishing structure by the inner cavity partition structure along with the water flow which spirally flows backwards, so that the dispersion degree of the fishing games in the fishing structure is improved, and the possibility that the fishing games are concentrated to the rear part of the fishing structure to cause extrusion deterioration is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of marine engineering equipment, in particular to an anti-extrusion fishing boat trawling device in a net applied to marine fishery engineering. Background technique [0002] With the continuous upgrading of marine fishing technology, mechanized trawler has become the most mainstream fishing method for fishing boats to go to sea. In the prior art, trawling is to drag the fishing net forward through a fishing boat, and the fishing net will "pocket" the fish and shrimps and other catches in the sea along with the hull and then collect the net. Compared with the traditional fishing method, trawling has the advantages of operation It is convenient and has the advantages of wide fishing coverage. [0003] However, because the tail end of the trawl will block the catch, and the catch enters the trawl successively as the trawl advances, it is easy to be caught at the tail end of the trawl first and then enter the ...

AI Technical Summary

Problems solved by technology

[0004] For this reason, the present invention provides an anti-extrusion fishing boat trawling device in the net applied to marine fishery engineering, so as to solve the problem that the trawling operation in the prior art cannot achieve integrity of various catches in the trawling net. Technical issues with the anti-extrusion function

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