Safety protection plate of large-section flood drainage ditch for mountainous terrain

The utility model relates to the technical field of drainage and flood discharge, and discloses a safety protection plate of a large-section flood discharge ditch for mountainous terrains, which comprises a main body mechanism, an adjusting support mechanism and an adjusting fixing mechanism, the adjusting support mechanism is positioned in the main body mechanism, the adjusting fixing mechanism is positioned above the main body mechanism, and the adjusting support mechanism is positioned above the main body mechanism. The main body mechanism comprises a fixed supporting plate and a fixed ground thorn I, the fixed ground thorn I is fixedly mounted at the lower end of the fixed supporting plate, the main body mechanism further comprises a protective fixed plate, a T-shaped fixed plate, a fixed ground thorn II, a screw hole I, a fixed bolt I and an anti-skid sealing gasket I, the protective fixed plate is movably mounted at the front end of the fixed supporting plate, and the T-shaped fixed plate is movably mou