Maintainer gets into safety device of elevator well work

The utility model relates to a maintainer gets into safety device of elevator well work, including setting up the triangle key lock on the door of elevator layer, the triangle key lock is triggered by the triangle key, is equipped with a micro -gap switch on the triangle key lock, and a micro -gap switch triggers the treater, and lower extreme station stop device is gone up in treater control, and the triangle key lock will be unblanked the signal transmission and given the treater, and treater control is opened with the elevator layer door that the triangle key lock corresponds, treater connection reset switch, and reset switch connection control cabinet, the reset switch is still connected the setting and is in reset button on the switch board surface. The utility model discloses an opening layer door with the triangle key, triggering lower extreme station stop device, as long as elevator car moves this position, maintainer safety is guaranteed in bring to rest immediately, the elevator well is walked out to the maintainer, close the triangle key lock after, need to switch board switch -on reset switch, the elevator could move, prevents that the maintainer from forgetting to close the triangle key and start the circumstances of elevator.