Fish-blocking device for reservoir spillway

Abstract

The invention discloses a fish-blocking device for a reservoir spillway, belonging to the technical field of fish-expelling equipment. The fish-blocking device comprises a bracket (4), an intermittently-controlled drive structure and at least one swivel plate, wherein the swivel plate is rotatably mounted on the bracket (4); the drive structure is used for driving the swivel plate to rotate; the swivel plate comprises a plurality of circular rings (1) coaxially arranged around a rotary shaft (3); the circular rings (1) are fixed on a same plane through spokes (7); and the swivel plate is vertically provided with a plurality of rubber rods (2). According to the invention, since the rubber rods arranged on the fish-blocking device face the deep water area of the reservoir, when fish swims to the area of the rubber rods, the fish automatically swims back; especially, when the rubber rods rotate with the swivel plate, the fish are daunted back without injury; thus, the interests of fishermen are fully protected, and flood draining and discharging of the reservoir and life and property safeties of people are ensured.

Description

technical field [0001] The invention belongs to the technical field of fish repelling equipment, in particular to a fish stopper for a reservoir spillway. Background technique [0002] It is usually necessary to set fish stoppers on the spillway of the reservoir to prevent the fish in the reservoir from swimming out when the spillway floods, reducing losses, especially in reservoirs with aquaculture functions. Traditional fish stoppers for reservoir spillways use fiber nets or metal nets to place at the water inlet of the reservoir or the upper reservoir of the pumped storage power station. They only block fish but cannot drive them away. Even when fish hit the block, " The sticky net fishing effect” kills the fish and blocks the waterway, affecting flood discharge; it not only causes the loss of fishermen, but also causes the reservoir to be in danger. Contents of the invention [0003] In order to solve the above problems, an embodiment of the present invention provides...

AI Technical Summary

Problems solved by technology

Traditional fish stoppers for reservoir spillways use fiber nets or metal nets to place at the water inlet of the reservoir or the upper reservoir of the pumped storage power station. They only block fish but cannot drive them away. Even when fish hit the block, " "sticky net fishing effect", the fish were killed, and the waterway was blocked, which affected the flood discharge; it not only caused the loss of fishermen, but also caused the reservoir to be in danger

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