Fishing device and method for deep-sea bottom fish resources

A bottom, fish technology, applied in fishing, applications, fishing nets, etc., can solve the problem that the size of the trawl net is not easy to control.

Active Publication Date: 2021-05-18
MARINE FISHERIES RES INST OF ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a controllable net opening size fishing device and method for bottom fish resources

Method used

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  • Fishing device and method for deep-sea bottom fish resources
  • Fishing device and method for deep-sea bottom fish resources

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as figure 1 , figure 2 The illustrated embodiment is a fishing device for bottom fish resources in the middle and deep sea, comprising an elastic ring 1, a trawl net arranged on the elastic ring, five floats 2 arranged on the upper part of the elastic ring, and seven floats arranged on the lower part of the elastic ring. Heavy hammer 3, two support rods 4 arranged on the elastic ring, flexible shaft 5 arranged on the two support rods; one end of the flexible shaft is rotatably connected with one support rod, and the other end of the flexible shaft is connected with another support rod The rotating shaft of the motor 6 on the bar is connected, and the flexible shaft is provided with 5 trumpet-shaped water inlets 7, and each trumpet-shaped water inlet is connected with the L-shaped drain pipe 9, and each L-shaped drain pipe is verti...

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Abstract

The invention discloses a fishing device and method for fish resources in the middle and deep seabed. , 2 support rods set on the elastic ring, and a flexible shaft set on the 2 support rods; one end of the flexible shaft is rotatably connected with a support rod, and the other end of the flexible shaft is connected with the motor on the other support rod. The rotating shaft is connected. There are several horn-shaped water inlets on the flexible shaft. Each horn-shaped water inlet is connected with an L-shaped drainage pipe. Each L-shaped drainage pipe is vertically connected with the flexible shaft. The center line of each horn-shaped water inlet Both are perpendicular to the lower part of the corresponding L-shaped drain pipe. The invention has the characteristics that the size of the net opening of the trawling net can be automatically adjusted according to the fish density and the speed of the boat, so as to ensure the fishing efficiency and reduce the production cost.

Description

technical field [0001] The invention relates to the technical field of middle-deep sea bottom fish fishing, in particular to a fishing device and method for middle-deep sea bottom fish resources with controllable net size. Background technique [0002] Trawling is the use of the movement of the ship to drag the fishing gear forward on the seabed or in the sea, forcing the fishing gear to pass through the fish, shrimps, crabs and other fishing objects in the waters into the net bag to achieve the purpose of fishing. [0003] Trawling nets can be used not only for fish, but also for cephalopods, shellfish and crustaceans; not only for fishing objects whose habitat water depth is only a few meters or tens of meters, but also for fishing objects whose habitat water depth reaches several thousand meters of deep-sea species. [0004] However, the existing trawl net has the problem that the size of the net opening is not easy to control. Contents of the invention [0005] The o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K73/02A01K75/00
CPCA01K73/02A01K75/00
Inventor 朱文斌徐国强张禹张勋
Owner MARINE FISHERIES RES INST OF ZHEJIANG
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