Safety tension bar protection device and use method thereof

The invention discloses a safety tension bar protection device and a using method thereof, and belongs to the technical field of petroleum well logging. A safety tension bar protection device comprises a hoisting protection cylinder, a set screw, an anti-falling screw and a steel wire rope. The hoisting protection cylinder is arranged on the protection component in a sleeving mode, and the set screw is connected with the protection component. The hoisting protection cylinder is in threaded connection with the set screw and the anti-falling screw; the set screw and the anti-falling screw are connected through a steel wire rope. The lifting force borne by the safety tension bar is reduced when the lifting force of the cable is transmitted, and most of the lifting force of the cable is transmitted to the lower connecting instrument string through the headstall shell, so that the safety tension bar is prevented from being broken due to potential safety hazards of equipment or manual operation; under the condition