Fishing cup type anti-blocking centralizer

The utility model relates to a fishing cup type anti-blocking centralizer, which is widely used for controlling the quality of a well bore in petroleum drilling operation, and is characterized in thata fishing cup groove is formed in a centralizing block. The clamp tooth screw drill bit has the advantages that the clamp tooth screw drill bit is simple in structure, and hard objects such as damaged teeth, falling from the ground, of the clamp tooth screw drill bit can be extruded into the cup fishing groove in the drilling operation; downhole tools are prevented from being scratched, the service life of a drill rod is prolonged, and drill jamming caused by falling objects is reduced. 扶正器广泛用于石油钻井作业中控制井身质量，本实用新型涉及捞杯式防卡扶正器，所述扶正块上开有捞杯槽。本实用新型达到的有益效果是：结构简单、能将地面掉落的钳牙螺丝钻头损坏的牙齿等硬物在钻进作业中将其挤压在其捞杯槽里；避免井下工具划伤提高钻杆寿命、减少落物卡钻。