High-strength steel bar straight thread connection structure

The utility model is suitable for the technical field of connecting structures, and provides a high-strength steel bar straight thread connecting structure which comprises a main body column, a fixed clamping block, a movable clamping block, a first thread bushing, a rotation limiting assembly, a second thread bushing and a stop assembly. The fixed clamping block is installed at one end of the main body column, a guide sliding groove is formed in the other end of the main body column, the second threaded sleeve is connected to the guide sliding groove in a sliding mode, and a second threaded hole is formed in the second threaded sleeve; the movable clamping block is rotationally connected to the fixed clamping block, placing grooves are formed in the fixed clamping block and the movable clamping block, and the first threaded sleeves are movably arranged in the placing grooves; and the rotation limiting assembly is arranged on the main body column. When two high-strength steel bars are connected, the two high-