Portable engineering measuring tool for water conservancy

The utility model discloses a portable engineering measuring tool for water conservancy in the field of hydraulic engineering, which comprises a measuring scale, a plurality of sections of extension scales arranged in the lower end of the measuring scale, a fixing ring mounted in the middle of the measuring scale, a plurality of sliding grooves formed in the right end wall of the fixing ring, a clamp mounted on the outer side of each sliding groove, and a top cover mounted at the top end of the measuring scale. A crank is mounted on the right end wall of the top cover, a winding disc is mounted in the top cover, a steel wire is wound on the winding disc, and a mounting nut is arranged on the left end wall of the top cover; through cooperation of the fixing ring and the clamps, when the measuring ruler is used for hydraulic engineering measurement, the measuring ruler can be clamped on a fixed object through cooperation of the multiple clamps, the measuring ruler is fixed, manual hand holding is not needed for