Carbon fiber sucker rod who does not thread off

• Main Author: XI XIAOPING
• Format: Patent
• Language: Chinese; English
• Published: 07.09.2016
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model belongs to the technical field of sucker rod for the oil recovery, especially, relate to a carbon fiber sucker rod who does not thread off. Including top connection, sucker rod main part and lower clutch, two adjacent sucker rods are connected through the screw -thread fit realization of top connection and lower clutch, the junction of top connection and lower clutch be provided with the stop pin, the stop pin is transversely inserted in the pinhole and through the fix with screw, stop pin central authorities are provided with the through -hole, the screw pass behind the through -hole with the top connection on the screw hole cooperation be connected. The one end at top connection place be provided with the centralizer. The stop pin be the platykurtic, the pinhole be with the flat hole of shape assorted of stop pin. The utility model discloses set up the stop pin in the junction of two sucker rods, thoroughly avoided the emergence of dropout accident, guaranteed going on smoothly of producti