Prestress pull rod tool with adjusting function

The prestress pull rod tool with the adjusting function comprises a base, an operation table and a limiting ring, an adjusting structure is arranged at the top end of the base, the operation table is arranged at the top end of the adjusting structure, a fixing structure is arranged at the top end of the limiting ring, and the fixing structure comprises an adjusting groove, a rotating rod, a pressing block and a wheel disc. The adjusting groove is formed in the top end of the limiting ring, a rotating rod is arranged in the adjusting groove, a pressing block is movably installed at the bottom end of the rotating rod, and a wheel disc is fixed to the top end of the rotating rod. Through the arrangement of the fixing structure, an operator can machine a pull rod to penetrate through the limiting ring during use, and after the pull rod penetrates through the limiting ring, the operator can rotate the wheel disc on the rotating rod and can push the pressing block below to fix the pull rod in the limiting ring thro