▎ 摘　　要

NOVELTY - The utility model relates to the advertising board field, and more specifically to a graphene electro-thermal film cleaning protecting device, comprising a fixed supporting device, lifting advertising plate, a sliding post member and the extrusion member fixing. can be graphene electro-thermal film is fixed between the fixing plate and the clamping plate, two insulating layers are respectively contacted with the fixing plate and the clamping plate, through rotation of the cam I and a cam II, cam II and cam I respectively against the cleaning plate I and a cleaning plate II move, then using the elastic potential energy of the spring I and the spring II. the cleaning plate I and a cleaning plate II and cam with the cam II I, then cleaning the plate I and a cleaning plate II can be friction cleaning the graphite electric heating film, and the back surface of the cleaning plate I and a cleaning plate II on the front surface are adhered with sponge, which can better protect the graphene electro-thermal film.