Chimney device is dodged to hoist

The utility model discloses a chimney device is dodged to hoist, revolving stage on including the barrel and being located the barrel be equipped with the davit on the revolving stage and be used for controlling the amplitude changing device of davit range be equipped with the sector plate on the barrel, be equipped with limit switch I between on sector plate and the revolving stage, limit switch I adopts roller type limit switch, and limit switch's I gyro wheel and sector plate cooperate and realize that the davit gyration is spacing, the rear portion of davit is equipped with hits piece and limit switch II, limit switch III, limit switch II, limit switch III with hit the piece and cooperate and realize that the davit height is spacing. The utility model discloses a stop device cooperatees with the sector plate for the hoist davit need not to observe at the operation in -process, just can the automatic shutdown operation to near barrier when the davit gyration, and what become that the width of cloth exceede