Convenient garbage intercepting and cleaning device for inside of fish way

Abstract

The invention provides a convenient garbage intercepting and cleaning device for the inside of a fish way. The convenient garbage intercepting and cleaning device for the inside of the fish way comprises triangular frame nets and guide tracks which are symmetrically arranged on side walls of the fish way. The convenient garbage intercepting and cleaning device for the inside of the fish way is characterized in that each triangular frame net comprises a galvanized steel pipe frame, each galvanized steel pipe frame is a triangular prism, one surface of each triangular prism is fixed on the corresponding side wall of the fish way by an expansion sleeve, and each triangular prism is in contact with the corresponding guide track. The device is provided with the two symmetric triangular frame nets and manual lifting devices, by automatic selectivity of migration of 'upward moving fishes' and 'floating garbage', the floating garbage can be intercepted and cleared by the triangular frame netson the left side and the right side, and the upward moving fishes can move upwards selectively along a channel formed between the two triangular frame nets in a staggered manner. The convenient garbage intercepting and cleaning device for the inside of the fish way has water permeability, influences to a flow field in the fish way are small, when the garbage is intercepted and cleared, the circumstance that a gate is closed to stop water is avoided, and passing of the fishes is not affected. In addition, the device is simple to manufacture and mount, simple to operate and wide in applicability.

Description

technical field [0001] The invention relates to a portable fishway internal garbage interception and cleaning device, which belongs to the technical field of fishway internal garbage cleaning. Background technique [0002] The construction of the dam project has blocked the free exchange of fish upstream and downstream of the hub, and the fishway is regarded as one of the effective means to alleviate the free exchange of fish blocked by the dam. Most of the existing fishways are stepped fishways composed of side walls and partitions, and fish passage holes of different shapes are set on the partitions. Research at home and abroad has shown that to achieve a good fish passage effect, a certain water flow must be satisfied. conditions and environmental conditions, and the floating debris entering from the upper reaches of the river and the open part of the fishway can easily block the fishway, change the design flow field of the fishway, and some sections even form a physical ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a portable fishway internal garbage interception and cleaning device, which utilizes the migration autonomous selectivity of "upstream fish" and "floating garbage". , to solve the problems faced by the operation of the fishway, such as the difficulty in cleaning up floating debris and garbage inside the fishway, and affecting the effect of passing fish, etc.

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