High-altitude combined support

The utility model discloses a high-altitude combined support which comprises a crawling ladder, a semicircular protection ring is fixedly connected to the surface of the crawling ladder, a concave clamping rod is fixedly connected to the upper surface of the crawling ladder, a bottom plate is fixedly connected to the lower surface of the crawling ladder, a transverse plate is placed on the upper surface of the bottom plate, and a fixing plate is fixedly connected to the upper surface of the transverse plate. A sliding groove is formed in the upper surface of the fixing plate, a sliding rod is slidably connected to the inner wall of the sliding groove, and a shielding strip is fixedly connected to the top end of the sliding rod. According to the high-altitude combined support, the crawling ladder is clamped to the top of the support through the concave clamping rods, the crawling ladder can move up and down, a flange on the side face can be conveniently installed, meanwhile, a flange at the bottom can be conve