| 摘要 |
The invention discloses a drill pipe component which comprises: a spindly drill stock which is provided with a longitudinal axis, a front-end and a tail end; and connection structures which are complementary on the front-end and the tail end of the drill stock, wherein the connection structures comprise a lobed plug structure axially extending from one end of the drill stock and a complementary lobed slot structure axially extending on the other end of the drill stock; also, the plug structure of the drill pipe component can be axially contained in the slot structure in an irrotional way, so as to be drivingly connected with the drill pipe component. |
