A kind of mesh panel for floating single bottom trawling net

Abstract

The invention discloses a net plate for floating single-bottom trawling, and aims to provide a net plate that can effectively reduce the impact of the lower edge of the net plate on the seabed during the operation of the trawling net in the prior art, seriously damaging the bottom quality of the seabed. The problem of mesh panels for suspended single-bottom trawls. It includes a main net plate and an adaptive expansion device, the main net plate has a hollow inner cavity, the buoyancy of the main net plate is greater than the gravity of the main net plate, and the buoyancy of the main net plate is smaller than the gravity of the main net plate and the self-adaptive expansion device The sum; the self-adaptive expansion device includes two left and right support flaps, elastic connecting elements corresponding to the support flaps one by one, connecting rods corresponding to the support flaps one by one, a hinged seat located below the main net plate and through The connecting rope hangs on the weight ball under the hinged seat, the upper part of the supporting wing plate is hinged with the main net plate through the hinged shaft, the upper end of the connecting rod is hinged with the lower part of the corresponding supporting wing plate, and the lower end of the connecting rod is connected with the hinged seat Articulated.

Description

technical field [0001] The invention relates to a trawling net, in particular to a suspended single-bottom trawling net. Background technique [0002] Single bottom trawling, also known as single trawling, is towed by a single boat. The floats and sinkers on the trawler provide vertical expansion for the trawl, and two net plates provide horizontal expansion for the trawl. There are many types of mesh panels for single bottom trawl nets, such as rectangular, oval, vertical curved surface, compound airfoil mesh panels, etc. However, currently, the mesh panels of trawl nets are generally heavy, and often occur during trawling operations. The lower edge of the mesh plate scrapes to the bottom of the sea, causing serious damage to the bottom of the bottom of the sea. Contents of the invention [0003] The purpose of the present invention is to provide a floating single bottom trawling mesh panel that can effectively reduce the problem that the lower edge of the mesh panel scr...

AI Technical Summary

Problems solved by technology

There are many types of mesh panels for single bottom trawl nets, such as rectangular, oval, vertical curved surface, compound airfoil mesh panels, etc. However, currently, the mesh panels of trawl nets are generally heavy, and often occur during trawling operations. The lower edge of the screen scrapes to the bottom of the sea, causing serious damage to the bottom of the bottom of the sea

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