Guide wheel convenient to assemble and disassemble for diamond fretsaw

The utility model relates to the technical field of diamond fretsaws, in particular to a guide wheel convenient to assemble and disassemble for a diamond fretsaw, which comprises a basic shaft, wire fixing discs are symmetrically sleeved on the basic shaft, connecting plates with T-shaped structures are symmetrically arranged on the upper side and the lower side of two ends of the basic shaft between the two wire fixing discs, one side of each connecting plate is fixedly connected with the inner side of each wire fixing disc, and the other side of each connecting plate is fixedly connected with the other side of each wire fixing disc. The upper side and the lower side of the part, between the two connecting plates, of the basic shaft are symmetrically provided with guide columns, the outer sides of the guide columns are provided with a plurality of guide blocks which are evenly distributed in a surrounding mode with the circle centers of the guide columns as the axis, and a guide wheel is detachably arranged