Telescopic driver corridor device of tower crane

The utility model discloses a telescopic driver corridor device of tower crane relates to building tower crane technical field. Channel device includes: horizontal channel A, horizontal channel B, safety barrier, connecting pin roll, horizontal channel A is formed by channel -section steel, pipe, steel sheet, steel sheet net welding manufacture, and the passageway fixing clip welds in horizontal channel A's preceding lower extreme, and hoist and mount nose and safety barrier socket weld respectively in the horizontal channel A both sides, and a set of connection pinhole is left to the rear end, horizontal channel B is formed by square pipe, pipe, steel sheet net welding manufacture, and the alternative pinhole of multiunit is left to the side, is convenient for adjust the fixed point and realizes flexible function, safety barrier is formed by pipe welding manufacture, connecting pin roll is in inserting horizontal channel A with horizontal channel B, goes up the pinhole of reserving through the alternative pi