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A flexible network expansion device

A flexible and expanding plate technology, used in fishing nets, fishing, applications, etc., can solve the problems of no obvious improvement in the compactness of buoyancy control fishing nets, weight reduction, etc., to improve the net expansion effect, light weight, and ensure sustainability. development effect

Active Publication Date: 2017-06-06
浙江中惟科创海洋科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with the traditional float, this utility model only reduces the weight under the same volume, and there is still no obvious progress in buoyancy control and the compactness of fishing nets.

Method used

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  • A flexible network expansion device
  • A flexible network expansion device

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Experimental program
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Effect test

Embodiment 1

[0022] Such as figure 1 , figure 2As shown, a flexible net expansion device is arranged on the trawl of a fishing boat, and the device includes a flexible hydrodynamic float 1 and a flexible hydrodynamic sinker 2, and the flexible hydrodynamic float 1 and the flexible hydrodynamic sinker 2 are respectively connected in series On the floater class and the sinker class, the flexible hydrodynamic float 1 and the flexible hydrodynamic sinker 2 are flexible sheets, which are rectangular and made of canvas. Each flexible hydrodynamic buoy 1 and flexible hydrodynamic sinker 2 are all tied with six shaped ropes 3, and the six shaped ropes 3 are divided into upper, middle and lower rows. The tie points on the sinker 2 are symmetrically distributed on the flexible hydrodynamic buoy 1 and the flexible hydrodynamic sinker 2 respectively, and are respectively located on both sides of the upper end, both sides of the lower end and the middle of the flexible hydrodynamic float 1 and the fl...

Embodiment 2

[0025] Each group of float adjustment ropes 7 is two, each group of sinker adjustment ropes 8 is two, each group of float adjustment ropes 7 is connected with the upper and lower ends of the flexible hydrodynamic buoy 1, and each group of sinker adjustment ropes 8 is connected to the flexible The upper end and the lower end of the hydrodynamic sinker 2 are connected. Correspondingly, there are two buoy linkage ropes 9 and two sinker linkage ropes 10, and four shape-setting ropes 3 are tied on each flexible lateral expansion plate 13, flexible hydrodynamic buoy 1 and flexible hydrodynamic sinker 2, and each adjustment rope The rope shaft on the fixer 6 is also four. The side connecting rope 14 of every side is also four. All the other are with embodiment 1.

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Abstract

The invention discloses a flexible net expanding device which is arranged on a trawl net of a fishing ship. The device comprises flexible water power floaters and flexible water power sinkers, wherein the flexible water power floaters and the flexible water power sinkers, which are flexible sheet-like objects, are connected in series to a floater line and a sinker line respectively; a plurality of shaping ropes are arranged on the flexible water power floaters and the flexible water power sinkers respectively; the shaping ropes on all the flexible water power floaters are connected in parallel; the shaping ropes on all the flexible water power sinkers are connected in parallel; the fishing ship pulls a fishing gear to move relative to water, the flexible water power floaters and the flexible water power sinkers form a concave fluid facing surface; the fluid facing surface faces the fishing ship; penetrating fluid through holes are formed in the flexible water power floaters and the flexible water power sinkers respectively. The flexible net expanding device has the advantages that the net expanding effect and the using energy-saving effect of the trawl net can be improved; the safety performance and the environmental protection performance of the trawl net are improved.

Description

technical field [0001] The invention relates to a fishing tool for marine aquatic products, more specifically, it relates to a flexible net expanding device. Background technique [0002] Trawling is an important operation method in my country's fishery production. When trawling, the net mouth should be opened as large as possible, so that the area covered by the trawl is large, so that the ideal fishing efficiency can be obtained. The vertical expansion of the trawl net mouth is mainly realized by driving the buoyant and sinker gangs to a certain distance in the upward and downward directions respectively by the floats and sinkers. The higher the vertical expansion rate, but the commonly used spherical floats often have insufficient buoyancy during high-speed trawling, and cannot keep the buoyant class stably on the sea surface or at a depth close to the sea surface. On the other hand, the sinking depth of the sinker is also difficult to control, often touching the seabed,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K73/04
CPCA01K73/04
Inventor 宋伟华吴如珂马家志臧迎亮彭道民
Owner 浙江中惟科创海洋科技有限公司
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