Ultra-long-distance stepless adjustment tower crane wall-attached pull rod

The tower crane wall-attached pull rod comprises an inner pull rod I, an inner pull rod II, an outer pull rod, a double-end adjusting screw rod, a pin shaft and an adjusting lug plate, the device is characterized in that a first inner pull rod and a second inner pull rod are inserted into the two ends of an outer pull rod respectively and connected with the outer pull rod through pin shafts, one end of the second inner pull rod is connected with one end of a double-end adjusting screw, two adjusting lug plates are arranged at the other end of the adjusting screw, and the two ends of the double-end adjusting screw are sleeved with locking nuts respectively. Ultra-long-distance adjustment is achieved by adjusting the relative positions of the inner pull rod and the outer pull rod, short-distance stepless adjustment is achieved by adjusting the double-thread adjusting screw rod, universality is wide, applicability is high, and the adjusting distance is long. 一种超长距离无级调节的塔机附墙拉杆，包括内拉杆一、内拉杆二、外拉杆、双头调节螺杆、销轴以及调节耳板；其特征是