Protective device of workover rig without guy rope

The protective device comprises a vehicle body and a workover rig arranged on the right side of the top end of the vehicle body, two rotating shafts are arranged at the front end and the rear end of the vehicle body respectively, sliding boxes are arranged at the left end and the right end of the front side and the rear side of the top end of the vehicle body respectively, and sliding assemblies are arranged in inner cavities of the four sliding boxes. One end of each sliding assembly extends to the outside of the sliding box, the four supporting legs are arranged on the left sides and the right sides of the outer walls of the two rotating shafts correspondingly, and a supporting assembly is arranged at the bottom end of each supporting leg. The utility model relates to the technical field of workover rigs, and solves the problems that the stretching length of a supporting leg is limited in the actual using process of a workover rig without a guy rope, and the workover rig without the guy rope is very unstabl