CONCRETE PLACING BOOM

摘要

Disclosed is a concrete placing boom, comprising a base (3), and a placing arm (1) and a placing tube (2) both provided on the base (3), wherein the base comprises a base frame (31), telescopic legs (32) for supporting the base frame (31), and leg seats (33) in the same number as that of the telescopic legs (32); the telescopic legs (32) comprise first leg arms (321) and second leg arms (322), with one end of the first leg arms (321) being connected to the base frame (31) and the other end being telescopically connected to the second leg arms (322), and one end of the second leg arms (322) being articulated to the leg seats (33) and the other end thereof being telescopically connected to the first leg arms (321). By means of the telescopic structure of the first leg arms (321) and the second leg arms (322), the placing boom is able to adjust the whole length of the telescopic legs (32) as required, and in turn to adjust the height of the placing arm (1) and the placing tube (2) above the ground such that the inconvenience due to the height of the placing boom (1) and the placing tube (2) above the ground being insufficient can be avoided or reduced, improving the adaptability thereof efficiently.