Portable fish guide corral for fish collection ship

Abstract

A portable fish guide corral for a fish collection ship is composed of rotating platforms installed on two sides of the bow of the fish collection ship, main fish guide corrals installed on one sides of the rotating platforms, auxiliary fish guide corrals in sliding connection with the main fish guide corrals, a pulley block and a rope assembly. Each rotating platform is formed by a lower rotating platform installed on an electric turntable and an upper rotating platform fixedly installed on the lower rotating platform, and the electric turntable is installed on the bow of the fish collection ship. In each main fish guide corral, one end of a rectangular frame body is fixedly installed in a slot disposed on one side of each lower rotating platform, the other end of the rectangular stainless steel frame body is hung in the air, and abrasion-resistant smooth strips are arranged on the upper portions of two sides of the inner wall in the rectangular frame body in the long side direction. The portable fish guide corral for the fish collection ship can overcome the defect of the existing fish guide net or fish guide corral of being difficult to fix and install and high in cost, can rotate or stretch and draw back according to the operating environments, can also be hung vertically or be connected with the fish guide net horizontally, and achieves low-cost fish guide.

Description

technical field [0001] The invention relates to the field of ecological hydraulic engineering, in particular to a portable fish-guiding grid used for a fish-collecting boat. Background technique [0002] The construction of traditional water conservancy projects has cut off the complete river while bringing great benefits to mankind. Due to physiological requirements, genetics and the influence of external environmental factors, fish often need to migrate. The dam blocks the migration channel of fish, thus causing the loss or change of fish habitat, leading to the reduction or even extinction of fish. [0003] In order to meet the needs of fish crossing dams, people have adopted fixed fish passing facilities such as fishways, fish locks, and fish elevators. On this basis, another kind of movable fish-passing facility was invented - a fish collection ship, that is, a "floating fishway". The fish container ship has the advantages of flexible maneuverability, relatively low ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a portable fish guide grid for fish collection boats, which can overcome the defects of difficult fixed installation and high cost of current fish guide nets or fish guide grids, and can be rotated or stretched according to the operating environment. The fish guide net can be hung vertically or connected horizontally to realize low-cost fish guide

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