Rapid well mouth blowout preventing device for oil well sucker rod operation

The invention discloses a rapid well mouth blowout preventing device for oil well sucker rod operation and relates to oil exploitation oil well safety equipment. The device is formed by connecting a rapid plugging valve body and a safety hanger pipe column of a sucker rod to an upper opening of an oil pipe clamp. The upper opening of the oil pipe clamp is connected with a lead-in nipple base through a thread, an upper opening of the lead-in nipple base and a lower opening of the safety hanger pipe column of the sucker rod are connected in an inserted mode and fastened by a pressing cap, an upper opening of the safety hanger pipe column is connected with the rapid plugging valve body in a close fit mode. The rapid blowout preventing device for oil well sucker rod operation is simple in structure, low in manufacturing cost, convenient to install, good in blowout preventing effect, easy to replace, small in operation difficulty and high in safety coefficient and saves time and labor.