Multi-section spliced maintenance ladder for electric power operation and maintenance

The utility model discloses a multi-section spliced maintenance ladder for electric power operation and maintenance, which is characterized in that the bottom of an upper vertical rod is inserted into an inner cavity of a lower fixed cylinder, the opposite ends of the upper vertical rod and the lower vertical rod are propped against each other, a screw rod is driven to rotate through a knob, and the screw rod drives two moving rods and a locking body to move in the directions away from each other; the locking bodies are tightly abutted against the corresponding inclined plane holes, and the inclined plane holes, the sliding grooves and the sliding strips are arranged, so that the splicing is more stable and firmer; the upper portion of the connecting cylinder is in threaded connection with the bottom of the vertical rod on the upper portion, the lower portion of the connecting cylinder is in threaded connection with the outer wall of the fixing cylinder on the lower portion, splicing stability can be further