Safety Fish Way

Abstract

A safe fish guide path structure includes a horizontal tube having an intake and exhaust valve for controlling levels of air having lower viscosity than water. The horizontal tube is equipped with a transparent window at both sides about the intake and exhaust valve. The horizontal tube is installed at a weir or a bank. An inclined tube extends horizontally from both sides of the horizontal tube. An extended tube extends horizontally from an end portion of the inclined tube. An inlet tube extends from an end portion of the extended tube toward an upper side, while communicating with the extended tube, with water flowing through the inlet tube. A cover has an insertion groove at one side into which the extended tube is inserted, and a cut-away groove at the other side for water to flow through the cutaway groove.

Description

TECHNICAL FIELD[0001]The present invention relates to a safety fishway, and in particular to a safe fish guide path structure which enables a safe movement of a fish by stopping the flow of water in a fish path when water flows a high speed in the event of flood, and provides a safe shelter as the water in the path increases during the dry season in which the bottom of a river is exposed, and the present invention rakes it possible to enhance a water quality as the water at the bottom of the river is continuously exchanged with new water and is well applied to a small dimension river as compared with a conventional intermittent discharge of water stopping the flow of water until the water level reaches a certain level.BACKGROUND ART[0002]A weir or a bank is generally installed at a river or a stream in order to efficiently use stored water for an agricultural purpose or an industrial purpose.[0003]The conventional weir or bank used to stop various fishes living an upstream or downst...

AI Technical Summary

Benefits of technology

[0011]The safe fish guide path structure according to the present invention has advantages in that fishes can rove to another places in sage and provides fishes with a safe shelter while gathering lots of fishes in such a way to stop the flow of the water in the interior of the fish guide path at the time of flood, eddy current or rapid stream.

[0012]In addition, even when the fish guide path inlets are fully exposed to the air during the dry season or due to the dried river or stream, since the water does not flow outside the fish guide path, a safe shelter can be provided to the fishes.

[0013]In the event that the bottom surface of the inlet tube is constructed to come into contact with the bottom of the river or the stream at usual time, since the deep water of the river or the stream is continuously discharged, the water quality of the water of the river or the stream can be significantly improved.

[0014]It is possible to easily control the level of the water of the horizontal tube which serves to the control of the flow amount of water depending on the increase and decrease of the volume of light air instead of using the water having a relatively higher viscosity by controlling the intake and exhaust valve.

[0015]Since a light transparency window is installed at an upper surface of the horizontal tube, sunshine or moonshine can reach the inner side of the safe fish guide path, the movements of fishes can be efficiently conducted by helping the fishes to easily find ways.

[0016]A light transparency window is installed at the front surfaces of the horizontal tube and the chamber, respectively, it is possible to easily check out the level of the water in the interior of the safe fish guide path, and the safe swimming of the fishes can be obtained in such a way to control the level of water by means of the intake and exhaust valve

Problems solved by technology

The conventional weir or bank used to stop various fishes living an upstream or downstream of a river from moving between the upstream and the downstream while interrupting the communications of deep water at the bottom of the river or the stream, thus increasing the contamination of the deep water.

The above-described conventional fish guide path structures still have problems.

The fishes with weak swimming abilities cannot be easily move to another place, and the deep water residing at a deep portion of a river or a stream does not help improve the water quality, and the structure is made too complicated, which results in various problems.

Images