Flexible net expanding 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: 2015-01-28
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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 , figure 2 As shown, a flexible net expansion device is set on the trawl of a fishing boat. The device includes a flexible hydrodynamic float 1 and a flexible hydrodynamic sinker 2. The flexible hydrodynamic float 1 and the flexible hydrodynamic sink 2 are respectively connected in series In the floats and sinkers, the flexible hydrodynamic float 1 and the flexible hydrodynamic sink 2 are both flexible sheets, rectangular in shape, and made of canvas. Each of the flexible hydrodynamic float 1 and the flexible hydrodynamic sinker 2 is tied with six shaped ropes 3, the six shaped ropes 3 are divided into upper, middle and lower rows, and the six shaped ropes 3 are connected to the flexible hydrodynamic float 1 and the flexible hydrodynamic float. The tie points on the sinker 2 are symmetrically distributed on the flexible hydrodynamic float 1 and the flexible hydrodynamic sinker 2, respectively, located on both sides of the upper end, both sides of the lo...

Embodiment 2

[0025] There are two float adjustment ropes 7 in each group, two sinker adjustment ropes 8 in each group, 7 float adjustment ropes in each group are connected to the upper and lower ends of the flexible hydrodynamic float 1, and 8 sinker adjustment ropes in each group are connected to the flexible The upper end and the lower end of the hydrodynamic sinker 2 are connected. Correspondingly, there are two float linkage ropes 9 and sinker linkage ropes 10, and each of the flexible lateral expansion plates 13, the flexible hydrodynamic float 1 and the flexible hydrodynamic sinker 2 are tied with four shaping ropes 3, each of which is an adjustment rope. There are also four rope shafts on the holder 6. There are also four side connecting ropes 14 on each side. The rest is the same as in Example 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 marine aquatic fishing tool, more specifically, it relates to a flexible net expanding device. Background technique [0002] Trawl fishing is an important operation method in my country's fishery production. The opening of the net should be as wide as possible during the trawl operation, so that the trawl net covers a large area, and the ideal fishing efficiency is obtained. The vertical expansion of the trawl net port is mainly realized by the float and the sinker respectively driving the float and the sinker to move a certain distance in the upper and lower directions. The farther the float and the sinker are separated, the greater the distance between the trawl and the sinker. The vertical expansion rate is higher, but the currently commonly used spherical floats often appear insufficiently buoyant when trawling at high speeds, and cannot stably maintain the floats on the sea or close to the sea surface. It is difficult to open...

Claims

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Application Information

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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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