Double Drum Anti-theft Earth Anchor

Double drum anti-theft earth anchor:

The utility model belongs to the technical field of ground earth anchor for oil field production operations, in particular to a double-cylinder anti-theft ground anchor for preventing the tilt and deflection of the derrick in oil field downhole operations, geological exploration and other construction operations involving erection activities or fixed derrick. Background technology: Currently, in downhole operations, mobile pumping, drilling and other construction operations such as erection of the derrick, in order to prevent the fixed derrick from tilting, it is necessary to pull the righting tension around the derrick. One end of each tension is fixed to the top of the derrick and the other end is fixed to the ground earth anchor around the construction site. At present, the ground anchor used in various oil fields is a single rotary structure reformed from waste oil pipe. The end of the ground anchor is fixed by special ground anchor truck, and the round hole through the taut rope at the end is only exposed. Because of its own spiral steel plate is one - way, reverse rotation that is, upward rotation. Therefore, the theft is very serious in field use, not only causing economic losses, but also once the anchor is stolen, the derrick will lose its fixed, its risk is greatly increased, easy to collapse the derrick, smashing wellhead equipment and other accidents, and directly affect the normal production of the oil field. The utility model aims to provide a double-cylinder anti-theft ground anchor with simple structure, which can effectively prevent the ground anchor from spinning out upward, reduce theft, improve operation progress, and can be fixed on the construction site for a long time. The technical solution adopted to realize the above purpose is that the ground anchor adopts the inner and outer double-layer cylinder structure, wherein the lower end of the inner cylinder is conical, the upper and lower limit of the upper and lower displacement of the outer cylinder is provided in the middle, and the top is provided with the spiral groove in the same direction as the spiral piece and the left and right symmetry. The outer cylinder is set on the upper part of the inner cylinder. The lower end is located between the upper and lower limit ring of the inner cylinder body, and the top is higher than the inner cylinder body, and is provided with a fastening rope hole. According to the above scheme made of double drum anti-theft anchor, can play a role in preventing ground anchor.