Large-cantilever inverted-T-shaped prestressed concrete cover beam construction and maintenance device

The invention relates to the technical field of concrete cover beam construction and maintenance, and provides a large-cantilever inverted-T-shaped prestressed concrete cover beam construction and maintenance device which comprises moving assemblies arranged on a T-shaped beam body, a support is arranged on the two moving assemblies, and a driving alternating assembly is rotationally arranged at the top of the support through a connecting frame. The water sprinkling assembly and the sweeping assembly are arranged on the two sides of the support respectively, and the driving alternating assembly is connected with the water sprinkling assembly and the sweeping assembly and drives the water sprinkling assembly and the sweeping assembly to alternately work for water sprinkling or sweeping; the T-shaped beam body can be sufficiently irrigated by water, so that the purpose of maintaining the T-shaped beam body is achieved, the situation that water is insufficient and the T-shaped beam body cannot be completely irri