Heating ventilation air conditioner cleaning device

The heating ventilation air conditioner cleaning device comprises a box body, an electric push rod is fixedly installed on the right side of the box body, the output end of the electric push rod is fixedly connected with a limiting plate, and an inner cavity of the box body is fixedly connected with a positioning plate. After installation is completed through the installation block, when the air conditioner fan body completes work and stops running, an electric push rod is started through a PLC to work, a limiting plate is driven by the electric push rod to move, a clamping groove is driven by the limiting plate to move, and the clamping groove abuts against the bottom of a limiting wheel to move; after the limiting wheel is limited by the positioning plate, the top of the limiting wheel drives the movable plate to move, the movable plate drives the positioning block to move, and the problems that when the heating ventilation air conditioner is used, dust is attached to the fan, dust is attached to the fan fo