| 摘要 |
A drainpipe piercing apparatus is provided to transfer readily the spring without the separate driving means. A drainpipe piercing apparatus comprises a box(100) which is the central axis of the penetration hole comprised in order to be rotatable and of which the penetration hole is formed in one side, a spring(200) of which the one end is fixed to and combined with box and the other end is drawn out for outside through the penetration hole, a rotating means(300) rotating the box, a guide means(400) transferring the spring. |
