Plateau fishway small gate cleaning and maintaining device

The invention relates to the technical field of hydraulic power plant maintenance, in particular to a plateau fishway small gate cleaning and maintaining device which comprises a gate assembly, a water channel and a gate frame arranged at the top of the water channel. The cleaning assembly comprises a sliding frame arranged on the top of the gate frame, a longitudinal rod arranged on the inner wall of the sliding frame, a handle arranged on the top of the longitudinal rod, a middle block arranged on the outer wall of the longitudinal rod, a transverse rod arranged on the inner wall of the middle block and a wedge-shaped scraper blade arranged at one end of the transverse rod, and the sliding frame can slide on the top of the gate frame; a longitudinal rod is driven to slide back and forth, the longitudinal rod slides to drive a middle block to slide, drive a transverse rod to slide up and down and drive a wedge-shaped scraping plate to scrape a gate assembly, impurities attached to the surface of the gate ass