Efficient, detachable and convenient foundation bolt threading device

The utility model discloses an efficient detachable convenient foundation bolt threading device which comprises a sleeve, four symmetrically-distributed mounting holes are formed in the side wall, close to the top, of the sleeve, auxiliary rods are mounted in the mounting holes, and the four auxiliary rods form a cross structure. The lower end face of the sleeve is provided with four openings used for being connected with a threading die in a clamping mode, and the four openings are symmetrically distributed. According to the utility model, the damaged foundation bolt can be subjected to threading, and the operation efficiency is improved. When the threading die is used, the threading die sleeves an opening in a foundation bolt, then the bottom of the sleeve faces downwards, the threading die is clamped in the opening in the lower end face of the sleeve, and threading can be completed by rotating the four auxiliary rods. The fixing sleeve is arranged in the mounting hole, so that the auxiliary rod is detachab