Linear guide rail dustproof structure

The utility model discloses a linear guide rail dustproof structure in the field of linear guide rails, which comprises a guide rail, a plurality of identical mounting holes are arranged on the upper surface of the guide rail, a dust blocking cover is clamped in each mounting hole, two groups of hard shells are arranged on the outer side of the guide rail, two rotating shafts are mounted on the inner wall of one of the two groups of hard shells, and a dust blocking cover is clamped in the dust blocking cover. A brush and a fixing nut are movably connected to the outer surface of each rotating shaft, two end covers are slidably connected to the outer surface of the guide rail, dust-free cloth is clamped in each end cover, and telescopic protective covers are installed on the side faces, close to each other, of the hard shells; according to the dust-proof guide rail, the dust-proof cover is arranged, so that the effect of sealing the fixed position of the guide rail can be achieved, the purpose of preventing du