Door device of elevator

In the door device of the elevator, a sill-side anti-falling component is provided with a sill-side fixing part and a sill-side protruding part, the sill-side fixing part is fixed in a sill groove, and the sill-side protruding part protrudes from the sill-side fixing part in the moving direction of the door when the door opens the entrance of the elevator, namely the opening direction. The door-side anti-falling component is provided with a door-side fixing part and a door-side protruding part, the door-side fixing part is fixed to the lower portion of the door body, and the door-side protruding part protrudes from the door-side fixing part in the moving direction, namely the closing direction, of the door when the door closes the elevator entrance and exit. When the door completely closes the entrance and exit of the elevator, at least one part of the door-side protruding part is located in the sill groove at a position away from the sill-side protruding part downwards. 在电梯的门装置中，地坎侧防脱部件具有地坎侧固定部和地坎侧突出部，地坎侧固定部