Quick indisputable bushing apparatus down

The utility model provides a quick indisputable bushing apparatus down relates to drilling equipment field, include frame and the unit head of installing back -and -forth movement in the frame, install the chuck on the unit head, the chuck is equipped with slide rail fixing device, be connected with the low tube ware on the slide rail fixing device, the place ahead that lies in the low tube ware in the frame still is equipped with the holder, slide rail fixing device includes the disc, the slide rail that is connected with a pair of parallel arrangement can be dismantled through the bolt on the disc to disc middle part trompil, and the disc can be dismantled and fix on the unit head, low tube ware joint is fixed between a pair of slide rail, low tube ware and holder all are used for clampsleeve, and the low tube ware is normally opened, the holder normal close, the utility model discloses a by indisputable sleeve pipe under the rig whole journey, it is safe quick again promptly, worker low in labor strength,