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Device for blocking fish with barrier net in ascending sea-route

A technology of ascending track and waterway, which is applied in fishing, fish farming, climate change adaptation, etc., can solve the problems of poor fish blocking effect and high probability of fish escaping from the net, and reduce the number of fish The probability of escape, the effect of blocking fish is good, and the effect of convenient production

Active Publication Date: 2008-10-08
杭州千岛湖发展集团有限公司
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AI Technical Summary

Problems solved by technology

Due to the influence of factors such as wind, current and navigation sinking, and considering the habit of fish to go up and move along the net, the probability of fish escaping through the net is very high, and the effect of blocking fish is not very good

Method used

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  • Device for blocking fish with barrier net in ascending sea-route
  • Device for blocking fish with barrier net in ascending sea-route

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Experimental program
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Embodiment Construction

[0013] The technical solution of the present invention will be further specifically described below in conjunction with the accompanying drawings.

[0014] attached figure 1 It is a structural schematic diagram of the present invention, with figure 2 It is a structural schematic diagram of the tongue net of the lifting channel type waterway blocking net and fish blocking device of the present invention. As can be seen from the figure, the bottom of the device is the main fence 1, which is 450 meters long and 40 meters high. There is a navigable gap at the channel on the upper part of the main fence, with a length of 80 meters and a height of 3 meters. The main block on both sides of the navigation gap is connected with a cover net 3 with a height of 6 meters. The upper part of the cover net floats on the water surface. influences. The navigable gap is connected with the matching lift tongue net 5, the shape of the lift tongue net is dustpan-shaped, the width of the end ne...

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Abstract

The invention relates to a device used in the operation technology for using a barrier net to bar fish, in particular to a fish barring device of an ascending type waterway barrier net. The device mainly consists of a main barrier net, a covering net, and an ascending channel floppa. The part of the main barrier net at the channel is provided with a navigation gap which is connected with the ascending channel floppa, float lines at two sides of the main net are connected to the covering net which partially floats on the water surface. In navigation, the ascending channel floppa overturns downwards under the action of a downward drawing force. After a ship passes, the drawing force is eliminated, and the floppa is raised to the water surface.

Description

technical field [0001] The invention relates to a device for implementing net and fish blocking operations in reservoirs, lakes, and river aquaculture waters to ensure navigation requirements, in particular to an ascending channel type waterway blocking and fish blocking device. Background technique [0002] At present, when lakes, rivers and other waters are divided into water bodies for aquaculture, the general method is to directly divide the water body with block nets. In order to ensure navigation, a channel is directly set on the block nets. Due to the influence of factors such as wind, current and navigation sinking, and considering the habit of fish to move up and along the net, the probability of fish escaping through the net is very high, and the effect of blocking fish is not very good. Contents of the invention [0003] The main technical problem to be solved by the present invention is to provide an ascending-type waterway blocking fish-blocking device with lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A01K69/00
CPCY02A40/81
Inventor 何光喜钱荷根
Owner 杭州千岛湖发展集团有限公司
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