Fish barring apparatus

Abstract

The invention relates to the field of stream cultivation and more particularly relates to a fish barring apparatus, comprising a roller water wheel. Blades arranged on the roller water wheel are fixed to spokes of the roller water wheel or widthwise connecting rods of the spokes through a blade shaft, the blades rotate around the blade shaft to adjust blade closing or opening, the surface of a roller is of screen structure, and the size of holes of a screen is less than the cross section of a fish body to be barred. Through the blades of the water wheel rotating around the blade shaft, different flow pressures borne by the blades of the water wheel in the fish barring apparatus disclosed herein when at different water levels can be adjusted, so that the water wheel rotates in a desirable direction, and floats in a stream during rotating of the water wheel attach to the surface of the roller and are rotated from the upstream side to the downstream side to be flushed away with water; since fishes are alive, unlike the floats, they will not attach to the surface of the roller of the water wheel to be rolled out, whereas the screen structure of the roller can prevent passing of fishes effectively.

Description

technical field [0001] The invention relates to the field of stream farming, and more specifically, to a fish blocking device. Background technique [0002] At present, artificial fish farming is basically carried out in fish ponds, reservoirs, and cages in rivers. The disadvantages of this farming method are poor water quality, insufficient space for fish to move, and unsatisfactory fish quality. [0003] With the improvement of living standards, people have higher and higher requirements for the quality of fish, so the fishermen moved the fish farms to the streams with beautiful mountains and clear waters. The fish raised in the streams are what the market calls clear water fish and cold water fish. fish or spring water fish. This kind of fish tastes good and has high nutritional value, but the risk of raising fish in small streams is very high. When flash floods break out, the fish in the stream will be almost washed away by the flood. Farmers have caused huge losses, a...

AI Technical Summary

Problems solved by technology

This kind of fish tastes good and has high nutritional value, but the risk of raising fish in small streams is very high. When flash floods break out, the fish in the stream will be almost washed away by the flood. Farmers have caused huge losses, and the fish they raise are easily washed away by the flood with sand and gravel, which pollutes the water quality of the stream.

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