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Drift gill net facilitating fishing

A gillnet and mesh technology, applied in fishing nets, fishing, applications, etc., can solve problems such as difficult salvage, damage to the seabed ecological environment, seabed ghost fishing, etc.

Active Publication Date: 2016-05-11
MARINE FISHERIES RES INST OF ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a gillnet that is easy to salvage, which can effectively solve the problem that the gillnet sinks into the seabed and is very difficult to salvage in the prior art, causing ghost fishing on the seabed. It is difficult to salvage, causing ghost fishing on the seabed, which will seriously damage the ecological environment of the seabed
The gillnet that is easy to salvage in this scheme 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

Method used

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0022] Such as figure 1 As shown, a gillnet that is easy to salvage includes a square mesh 1a, some floats 2a arranged on the upper edge of the square mesh and some weight devices 1b suspended on the lower edge of the square mesh by connecting ropes 3a .

[0023] Such as figure 2 , image 3 As shown, the weight device 1b includes a cylindrical counterweight 1 with its upper and lower ends closed, an insertion rod 5 and a corrosion trigger release device 8 . The top plate of the cylindrical counterweight is an iron plate 3 that is easily corroded by seawater, and the material of the iron plate in this embodiment is cast iron. The upper surface of the iron plate is provided with an annular thinning groove 4 . The lower surface of the iron plate is provided with an annular easy-break groove 9 corresponding to the annular thinning groove, and ...

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Abstract

The invention discloses a drift gill net facilitating fishing and aims to provide a drift gill net which facilitates fishing and can effectively solve the problem about seabed ghost fishing caused by the fact that a drift gill net sinks in the seabed and is very difficult to fish. The drift gill net comprises a square mesh, a plurality of floaters arranged on the upper edge of the square mesh and a plurality of counter weight devices suspended on the lower edge of the square mesh through connecting ropes, wherein each counter weight device comprises a cylindrical counter weight with closed upper and lower ends and an inserting rod, a top plate of the cylindrical counter weight is an iron plate easily corroded by seawater, an inserting hole is formed in the middle of the upper surface of the iron plate, a seal ring mounting groove is formed in the inner side surface of the inserting hole, and an inflatable seal ring is arranged in the seal ring mounting groove; an annular thinning groove is formed in the upper surface of the iron plate, the inserting hole is located on the inner side of the annular thinning groove, a first pre-tightening compression spring is arranged in the cylindrical counter weight, and the inserting rod is inserted into the inserting hole and sleeved with the inflatable seal ring.

Description

technical field [0001] The invention relates to a gillnet, in particular to a gillnet which is easy to salvage. 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 fishing, which will ser...

Claims

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Application Information

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IPC IPC(8): A01K71/00A01K75/00
CPCA01K71/00A01K75/00
Inventor 陈峰朱文斌张洪亮
Owner MARINE FISHERIES RES INST OF ZHEJIANG
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