Uniform paint spraying device for metal fittings

The utility model relates to the technical field of metal fitting paint spraying, in particular to a uniform paint spraying device for metal fittings. Comprising a movable frame, a protection pipe, a supporting bottom frame and an internal thread ring, a paint tank is fixedly installed at the upper end of the movable frame, a paint sprayer is installed below the paint tank, the lower portion of the paint sprayer is connected with a spraying pipe through a hose, the protection pipe is connected to the lower portion of the spraying pipe in a penetrating mode, and the supporting bottom frame is welded and fixed to the side of the movable frame; a positioning rod is fixedly welded to the side of the supporting bottom frame, the threaded rod is sleeved with an internal thread ring, the side of the internal thread ring is fixedly connected with the side of the spraying pipe, a supporting plate is fixedly connected to the upper portion of the protection pipe, and an automatic telescopic rod is fixedly installed on t