Rotary oil pipe positioning anchor

The utility model relates to a rotary oil pipe positioned anchor, which resolves the problem that the anchor can not be adjusted, used repeatedly, and changed the broken components and operated under the well. The utility model is characterized in that an involute tooth (2), which connects with the slips (3) is provided on the external diameter of the core pipe (1), and with the anchor teeth covering through a spring (10). The slips base (4) is on both sides of the (3) slips, which connects with the upper and the lower anchors. The upper anchor slips base (4) links up with the pretensioning slips base (5) with the bulgy plate. On the outer bulgy plate of the slips base (5), the boss on the slips base (5) is provided with several pretensioning slips (6), on which outside surface positioned the longitudinal anchor gear. The spring (7) is between the slips and slips base. The top of the slips (6) connects with the ring baffle ring (8) through bolt. The utility model has the advantages that the anchor can be adjusted repeatedly and used under the well and does not break down easily, in addition, the operation is easy.