Utilize sopwith staff measuring fixing device

The utility model discloses an utilize sopwith staff measuring fixing device, stability is not high when having solved among the prior art fixed back height -adjusting, and then the result that leads to detecting accurate problem inadequately. The utility model discloses a sopwith staff adapter sleeve and cradling piece, the sopwith staff adapter sleeve includes base member, sopwith staff mounting hole, locking screw, the cradling piece includes that the top articulates the upper boom on the base member, end screw thread connection's king -rod at the bottom of top and the upper boom, end screw thread connection's sill bar at the bottom of top and the king -rod to and fix the fixing base in the sill bar bottom, upper boom lower extreme and sill bar upper end are the internal thread, all establish to the external screw thread at the king -rod both ends, and the spiral opposite direction of the external screw thread at king -rod both ends, the fixing base is conical structure, and fixing base a week still is pro