Hydraulically-driven self-adaptive fishway inlet gate device and method for increasing fish luring water flow velocity of fishway inlet

The invention discloses a hydraulically-driven self-adaptive fishway inlet gate device and a method for improving the fish luring water flow velocity of a fishway inlet, and relates to the technical field of fish passing facility hydraulics. By arranging a self-adaptive inlet gate, the sectional area of a vertical seam type fishway inlet gate is controlled within a reasonable range; compared with a conventional fishway inlet gate, the fishway inlet gate has the advantages that the flow speed of fish luring water flow can be remarkably increased, and the upstream condition of the inlet section is remarkably improved; by means of the self-adaptive entrance gates and a multi-entrance arrangement method, the requirement for site conditions is lower, the operation and maintenance cost is lower, the problem that fish upstream paths are disordered in the multi-entrance switching process is solved, and the fishway arrangement difficulty and the construction difficulty are remarkably reduced. 本发明公开了水力驱动的自适应鱼道进口闸门装置及其提