Gillnet device effective in preventing ghost fishing

Abstract

The invention discloses a drift net device capable of effectively avoiding ghost fishing, and aims at providing a drift net device capable of effectively solving the problem that a drift net sunk into the seabed is difficult to fish, which leads to seabed ghost fishing. The drift net device comprises a square net piece, multiple floaters arranged on the upper edge of the square net piece, and multiple counter weight devices hung on the lower edge of the square net piece through connecting ropes; each counter weight device comprises a cylindrical balance weight with the upper end and the lower end closed, an inserting rod and a traction structure arranged in the cylindrical balance weight, wherein a top plate of the cylindrical balance weight is an iron plate which is corroded by sea water easily, an inserting hole is formed in the middle of the upper surface of the iron plate, a sealing ring installing groove is formed in the inner side face of the inserting hole, and an inflating sealing ring is arranged in the sealing ring installing groove; an annular thinning groove is formed in the upper surface of the iron plate, the inserting hole is located at the inner side of the annular thinning groove, a first pre-tightening compression spring is arranged in the cylindrical balance weight, the inserting rod is inserted into the inserting hole, and the inflating sealing ring is arranged on the inserting rod in a sleeving mode.

Description

technical field [0001] The invention relates to a gillnet, in particular to a gillnet device which can effectively avoid ghost fishing. Background technique [0002] Gillnet is a rectangular mesh made of one or more layers of plastic filaments, and generally multiple meshes are bonded together. There are multiple floats on the upper edge of the gillnet, and multiple counterweights on the lower edge of the gillnet, so that the gillnet is vertically opened at a position close to the sea level, waiting for fish to swim in and be caught by the net. entangled. [0003] Gillnets are often damaged by the net gear during use and discarded by fishermen in the sea. For these gillnets discarded in the sea, some of the floating balls on the gillnets will fall off and be damaged over time, causing the gillnets to sink to the bottom of the sea under the action of the counterweight; and once the gillnets sink to the bottom of the sea It is very difficult to salvage, causing seabed ghost...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that gillnet sinks into the bottom of the sea, which is very difficult to salvage in the prior art, resulting in the problem of seabed ghost fishing, and provides a gillnet device that can effectively avoid ghost fishing, which can effectively solve the problem of gillnet sinking. It is very difficult to salvage when it enters the bottom of the sea, causing ghost fishing on the bottom of the sea, which will seriously damage the ecological environment of the bottom of the sea

The gillnet device of this solution can effectively solve the problem that it is very difficult to salvage when the gillnet sinks into the seabed, causing ghost fishing on the seabed, which will seriously damage the ecological environment of the seabed

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