Pulley assembly of elevator

The utility model discloses a pulley assembly of an elevator, which comprises a fixing plate and further comprises a first fixing pipe, a second fixing pipe and a pulley, the first fixing pipe is fixedly mounted on the inner surface of the fixing plate, and the outer surface of the first fixing pipe is rotatably connected with the pulley; the end of the second fixing pipe is rotationally connected with the side face of the pulley, and the outer surface of the second fixing pipe is slidably connected with a moving pipe; the top of the T-shaped plate is fixedly connected with the outer surface of the movable pipe, the T-shaped plate is slidably connected with the fixed plate, a T-shaped groove is formed in the middle of the fixed plate, through holes are formed in the inner surface, close to the T-shaped groove, of the fixed plate and the bottom of the T-shaped plate, and sliding rods are inserted into the through holes. And the outer surface of the sliding rod is sleeved with a telescopic spring, a limiting gr