A self-detaching hammer mechanism for gillnet

Abstract

The invention discloses a self-separation hammer mechanism for gill nets and aims to provide a self-separation hammer mechanism used for gill nets and capable of effectively solving the problems that floating gill nets are very difficult to salvage once sinking into seafloors, cause seafloor ghost catching and severely damage the ecological environment of the seafloors. The self-separation hammer mechanism comprises a hammer device, an insertion rod and a trigger type self-separation mechanism, wherein the hammer device comprises a counter weight cylinder with an opening in the upper end and a cylinder lid for sealing and covering the opening in the upper end of the counter weight cylinder, and a vertical insertion through hole is formed in the middle of the cylinder lid; the insertion rod is inserted in the vertical insertion through hole, and a horizontal limit through hole is formed in the outer side surface of the insertion rod; the trigger type self-separation mechanism is located in the counter weight cylinder and comprises a vertical cylinder body, a horizontal cylinder body, a vertical sliding piston arranged in the vertical cylinder body, a horizontal sliding piston arranged in the horizontal cylinder body and a limit rod inserted in the horizontal limit through hole, and the inner diameter of the vertical cylinder body is larger than that of the horizontal cylinder body.

Description

technical field [0001] The invention relates to the field of floating gill nets, in particular to a self-detaching weight mechanism for gill nets. Background technique [0002] Gillnet is a rectangular mesh made of one or more layers of plastic wire. There are multiple floats on the upper edge of the gillnet, and multiple weights on the lower edge of the gillnet, so that the gillnet is vertically opened near the sea level, waiting for fish to swim in and be caught by the net. entangled. [0003] At present, gillnets are often damaged by the net gear during use, and are 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 a heavy hammer; once the gillnets sink to the bottom of the sea, it is very Difficult to salvage, causing seabed ghost fishing, will seriously damage the seabed ecological envir...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a gillnet that can effectively solve the problem that the floating gillnet is very difficult to salvage when it sinks into the seabed, causing ghost fishing on the seabed, and seriously damaging the ecological environment of the seabed. Break away from the hammer mechanism

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