Hoisting structure for replacing main transmission shaft or driving device of escalator

The utility model discloses a hoisting structure for replacing the main transmission shaft or the driving device of an escalator, wherein paired first vertical bracings and second vertical bracings are triangularly and stably arranged to support sliding rails; a trolley is arranged on the sliding rails in a manner of rolling in the longitudinal direction of the sliding rails; a hoisting device can be arranged on the trolley and used for lifting the main transmission shaft or the driving device part of the escalator; and then the trolley is rolled to move the lifted main transmission shaft or driving device part of the escalator out of a truss; and after the lifted main transmission shaft or driving device part is replaced by a new part, the new part is then returned to the position for mounting through the trolley. The hoisting structure provided by the utility model is capable of lifting large parts in small space and under the condition of less manpower, and thus is convenient to operate.