| 摘要 |
The present invention relates to a crane. The prevent invention relates to the crane which has a crane mast (1) having a tubular mast lower part (3) and a main frame (4), wherein a lower fixing part (5) and an upper fixing part (6) for the master lower part (3) of the crane mast (1) are vertically arranged, the mast lower part (3) can rotate with respect to the main frame (4) by a rotary device, and at least one line (7) is extended to the upper fixing part (6) from a lower side of the lower fixing part (5). According to the present invention, at least one line is connected to an inlet hole (15) of a rotary distributor (8) on the upper fixing part (6), and a releasing device (10) to release connection between the line (7) and the rotary distributor (8) is arranged in an area of the inlet hole (15). The crane has an open part (9) for the crane mast (1) to be able to approach the releasing device (10) from the outside of the crane mast (1) at a height of the releasing device (10). |
