Trawler

Abstract

The invention provides a trawler and belongs to the technical field of ships. The trawler comprises a hull structure and two trawling arm frames. The lower ends of the two trawling arm frames are hinged to the two sides of the hull structure. Floating mechanisms are arranged at the tops of the trawling arm frames and comprise floating boxes. Expandable airbags are arranged on the lower sides of the floating boxes. Electric air pumps are arranged on the upper sides of the floating boxes and connected with the expandable airbags through pipes. Floating bodies are arranged at the lower ends of the expandable airbags. First through holes are formed in the peripheries of the floating boxes. Slide rods are inserted in the first through holes. Baffles are arranged at the upper ends of the slide rods, and the sizes of the baffles are larger than the sizes of the first through holes. The lower ends of the slide rods penetrate through the first through holes, and the floating bodies are hinged to the ends of the slide rods. Reset springs are arranged on the slide rods and located between the floating bodies and the floating boxes. The floating mechanisms in the trawler plays a good role in supporting the trawling arm frames in trawling operation of the trawler, so that the safety of trawler operation is improved.

Description

technical field [0001] The invention belongs to the technical field of ships and relates to a fishing trawler. Background technique [0002] In reality, due to the small tonnage of fishing boats, they are greatly affected by wind and waves when fishing in distant waters, especially boom-type trawlers, because the trawl boom set on the hull structure is generally long, when the trawl boom is in the vertical position In the straight state, the upper end of the jib exceeds the living area on the fishing boat, which makes the overall center of gravity of the fishing boat too high, resulting in poor stability of the fishing boat in wind and waves. When the trawling jib is in a horizontal state, the free end of the jib protrudes a lot out of the hull structure , and the fishing net is subjected to a large external force during the fishing operation, which directly tests the structural strength of the trawl boom and also affects the stability of the fishing boat. Contents of the ...

AI Technical Summary

Problems solved by technology

[0002] In reality, due to the small tonnage of fishing boats, they are greatly affected by wind and waves when fishing in distant waters, especially boom-type trawlers, because the trawl boom set on the hull structure is generally long, when the trawl boom is in the vertical position In the straight state, the upper end of the jib exceeds the living area on the fishing boat, which makes the overall center of gravi

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