Crawler type fish continuous downstream dam passing device

Abstract

The invention provides a crawler type fish continuous downstream dam passing device. The device comprises an oval vertical crawler type transmission system. An upper end fixing rotary shaft and a lower end fixing rotary shaft are installed on the inner side of the oval vertical crawler type transmission system. Multiple fish conveying boxes are evenly arranged on the outer side of the oval vertical crawler type transmission system in the oval circumference direction. Inclined guide plates are arranged on the contact surfaces of the outer sides of the fish conveying boxes and water current, automatic opening and closing net covers are installed at the tops of the fish conveying boxes, and the fish conveying boxes are connected through oval connecting plates arranged on the outer sides of the oval vertical crawler type transmission system. By the adoption of the crawler type fish continuous downstream dam passing device, the problems that in current medium-and-high dam water conservancy projects, downstream fish passing is high in damage and is not continuous, downstream delay is caused to fish, and a large amount of labor and a large number of material resources are wasted can be solved, a large amount of labor and a large number of material resources are saved for safe, quick and efficient dam passing of the fish, and meanwhile the downstream delay of the fish is greatly shortened.

Description

technical field [0001] The invention relates to the field of fish protection, in particular to a crawler-type fish continuous downward dam crossing device. Background technique [0002] With the construction of a large number of barrage and dam projects, natural rivers have been cut off to varying degrees, blocking the migration of fish, resulting in a sharp decline in the population of migratory fish. In order to protect migratory fish, while building dams and dikes, various countries have built various types of fish passing facilities according to the characteristics of the project and the needs of fish protection, such as fishways, imitation natural passages, fish lifts and fish lifts. Gates are used to help anadromous fish go up, and physical barrier facilities and behavioral fish guide facilities are used to help fish go down. At present, in foreign downstream fish passing facilities, fish passing bypasses, fishways, fish gathering boats and cars are mainly used to hel...

AI Technical Summary

Problems solved by technology

Engineering measures such as consolidating fishing boats and automobile transportation are used to help migratory fish go down, but often the fish are damaged to a certain extent during the transportation process, and the fish is not continuous, the effect is not good, and it consumes a lot of manpower and material resources, which delays the fish. Disadvantages such as smooth dam crossing time

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