Adjustable optical instrument positioning device

The invention discloses an adjustable optical instrument positioning device, and relates to the technical field of machinery. The device comprises an adjusting rod, and the adjusting rod is slidably installed at the top of a supporting rod; an instrument support is fixedly installed at the top of the adjusting rod, the bottom of the supporting rod is fixedly embedded in the top of a positioning base, a protective cover is fixedly installed on the outer wall of the supporting rod, and a cleaning cover is movably installed at the top of the protective cover; the outer wall of the cleaning cover is elastically connected with the outer wall of the protective cover through an elastic piece, and dustproof heat dissipation holes are fixedly formed in the protective cover. According to the adjustable optical instrument positioning device, the protective cover is arranged on the supporting rod, wind and sand can be effectively blocked, meanwhile, the cleaning cover is arranged, the top of the cleaning cover can conduc