Escape window, cab and operation machine

The utility model relates to the technical field of engineering machinery, and provides an escape window, a cab and an operation machine.The escape window comprises a window frame, a movable window and a locking mechanism, the window frame is provided with an opening for installing the movable window, and one end of the movable window is rotationally connected with the window frame; at the at least two rotating positions of the movable window, the locking mechanism can be switched between a locking state and an unlocking state, in the locking state, the locking mechanism can limit the movable window to rotate relative to the window frame, and in the unlocking state, the movable window can rotate relative to the window frame; at least one of the movable window and the window frame is detachably connected with the locking mechanism. By means of the arrangement, the problem that in the prior art, due to the fact that an escape window can only be opened destructively, a cab is poor in ventilation effect under dai