Single boat trawling semi-flexible foldable rectangular V-shaped otter board

A semi-flexible, trawling technology, applied in fishing nets, fishing, applications, etc., can solve problems such as impact on the seabed ecological environment, damage to the bottom environment, and increase in operating costs, achieve low-environment-friendly fishing, protect seabed habitats, reduce The effect of weight

Inactive Publication Date: 2017-05-31
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional rectangular "V"-shaped stencil is an all-steel structure stencil, which is very heavy. During the operation, its surface is close to the seabed or even sinks into the seabed, which will not only have a hu

Method used

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  • Single boat trawling semi-flexible foldable rectangular V-shaped otter board
  • Single boat trawling semi-flexible foldable rectangular V-shaped otter board
  • Single boat trawling semi-flexible foldable rectangular V-shaped otter board

Examples

Experimental program
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Embodiment Construction

[0018] Such as figure 1 , the rigid frame 1 of the net plate welded by steel, the four corners of the rigid frame 1 are rounded corners, each panel has three windows 2, and is provided with a fork connection point 3 and a drag line fixing piece 4; A window is connected with a mesh panel 6 made of high-strength light-weight impermeable flexible material such as ultra-high-strength canvas or high-strength textile fiber cloth. The link between the two rigid frames 1 is similar to the connection between the door and the window, and can be wound around the center. The shaft 5 rotates freely, and the two rigid frames 1 are stretched into a "V" shape by two rigid support rods 7. The length of the rigid support rod 7 can be adjusted by adjusting the position of the connection hole 10, so that the gap between the board surfaces can be controlled. In addition, when the stencil is operating, transporting, or idle, it can be quickly assembled and disassembled, which is very convenient to ...

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Abstract

The invention discloses a single boat trawling semi-flexible foldable rectangular V-shaped otter board. The single boat trawling semi-flexible foldable rectangular V-shaped otter board comprises two rectangular rigid frames capable of rotating freely around a center shaft, wherein a cross rope connection point is arranged on each of the two rigid frames; the rigid frames are provided with two or more windows; the windows are provided with light water-impermeable flexible otter board surfaces; a plurality of length-adjustable rigid support rods stretch the two rigid frames, so that the stretched two rigid frames form a V-shaped structure with an adjustable included angle; the center shaft is provided with a perforated warp fixing sheet. By adopting the single boat trawling semi-flexible foldable rectangular V-shaped otter board, the weight of the rectangular V-shaped otter board is reduced, damage of the otter board to the seabed ecological environment is reduced, dragging resistance is reduced, and energy consumption in a fishing boat operation process is lowered; moreover, the single boat trawling semi-flexible foldable rectangular V-shaped otter board is simple in structure, is convenient for transportation, operation and assembly, is low in cost, and can be assembled and detached rapidly; damaged parts can be replaced rapidly in an operation process, and efficient, low-energy-consumption and environment-friendly fishing in single boat trawling operation is realized; the single boat trawling semi-flexible foldable rectangular V-shaped otter board can be widely applied to offshore small-sized single boat trawling fishing boat operation in China.

Description

technical field [0001] The invention relates to a "V"-shaped screen, in particular to a semi-flexible and foldable rectangular "V"-shaped screen for a single-boat trawl. Background technique [0002] Trawling is one of the main modes of operation in the modern marine fishing industry. It has the characteristics of flexibility, adaptability and high production efficiency. Since trawling is a kind of active fishing gear, it needs to rely on fishing boats to tow the nets for operation, so the fishing method is a very energy-intensive operation method, and the energy consumption during trawling operations accounts for 80% of the overall energy consumption of trawlers. As the world's fuel prices continue to rise, the cost of trawling operations continues to rise, and the efficiency of trawling fishing decreases. In addition, bottom trawls drag along the bottom during operation, which damages the seabed ecological environment and is not conducive to the sustainable development of ...

Claims

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Application Information

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IPC IPC(8): A01K73/045
CPCA01K73/045
Inventor 黄六一许庆昌赵芬芳刘长东唐衍力梁振林程晖徐基强倪益
Owner OCEAN UNIV OF CHINA
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