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Trawl net device and method

The technology of a trawling device and an internal net is applied in the field of trawling devices that can effectively avoid the depletion of fishery resources, can solve problems such as the destruction of fishery resources, and achieve the effect of ensuring sustainable development and fishing.

Inactive Publication Date: 2019-05-07
杭州林迪德瑞科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] my country's marine fishery resources are very rich, and its characteristics also determine the various fishing methods in our country, such as trawling, stretching nets, gillnets and many other operating methods. However, when the net is pulled, the big fish blocks the escape channel of the small fish, and the big fish and the small fish squeeze each other. Even if the trawl net that meets the standard has been used, a certain amount of fish will still be caught. Small fish are caught, causing damage to fishery resources

Method used

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  • Trawl net device and method
  • Trawl net device and method

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Such as figure 1 The illustrated embodiment is a trawling device, comprising a cylindrical inner net 1 with upper and lower ends open and a cylindrical outer net 2 with upper and lower ends open, between the cylindrical inner net and the bottom of the cylindrical outer net Connected by the annular net sheet 3, the mesh size of the cylindrical inner net, the cylindrical outer net and the annular net is all the same, and the cylindrical inner net and the cylindrical outer net are all provided with a plurality of support rings 21; The upper end of the cylindrical inner net is provided with a circular plate 11, and the lower surface of the circular plate is provided with a plurality of first bait boxes 111, which are filled with bait, and the first bait box is provided with a first sliding door 112, A sliding door is provided with a first unlocking mechanism 113; the upper end of the cylindrical outer net is provided with a circle 22, such as figure 2 As shown, the circul...

Embodiment 2

[0039] Embodiment 2 includes all structure and method parts of embodiment 1, such as figure 1 Shown, the cylindrical outer net of embodiment 2 is provided with 4 plastic pipes 24, is all provided with the second bait box 25 on every plastic pipe, is full of bait in the second bait box, is provided with the first bait box on the second bait box. Two sliding doors, the second sliding door is provided with a second unlocking mechanism; each plastic pipe is connected to the air pump 23, and all air pumps and all second unlocking mechanisms are electrically connected to the controller.

[0040] (5-3) also includes the following steps:

[0041] The controller controls the air pump to inflate each plastic tube, and each plastic tube expands to the outside of the cylindrical outer net, and the controller controls each second unlocking mechanism to open each second sliding door;

[0042] The bait flows out, and the small fish in the annular cylindrical space enter the water outside th...

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Abstract

The invention discloses a trawl net device and method. The trawl net device comprises a tubular inner net having upper and lower end openings and a tubular outer net having upper and lower end openings; the bottom of the tubular inner net is connected with the bottom of the tubular outer net through a circular net; the tubular inner net, the tubular outer net and the circular net are equal in meshsize; both the tubular inner net and the tubular outer net are provided with a plurality of support rings; a circular plate is arranged at the upper end of the tubular inner net; the lower surface ofthe circular plate is provided with a plurality of first bait boxes fully filled with bait; each first bait box is provided with a first sliding door that is provided with a first unlocking mechanism. The trawl net device ensures normal fishing and also ensures sustainable development of fishery resources.

Description

technical field [0001] The invention relates to the technical field of trawling equipment, in particular to a trawling device and method which can effectively avoid the depletion of fishery resources. Background technique [0002] my country's marine fishery resources are very rich, and its characteristics also determine the various fishing methods in our country, such as trawling, stretching nets, gillnets and many other operating methods. However, when the net is pulled, the big fish blocks the escape channel of the small fish, and the big fish and the small fish squeeze each other. Even if the trawl net that meets the standard has been used, a certain amount of fish will still be caught. Small fish are caught, causing damage to fishery resources. Contents of the invention [0003] The purpose of the present invention is to provide a trawling device and method that can effectively avoid the depletion of fishery resources in order to overcome the problem that the trawling ...

Claims

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Application Information

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IPC IPC(8): A01K73/02A01K73/04
Inventor 不公告发明人
Owner 杭州林迪德瑞科技有限公司
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