Flow string

The utility model discloses a flow string, including the producing string main part, the teeter chamber, oil pipe is taken out to first oil pipe of taking out and second, the oil -well pump is installed at the top of producing string main part, mid -mounting in the producing string main part has the motor, producing string main part endotheca has first oil pipe of taking out and second to take outoil pipe, the first oil pipe's of taking out top and oil -well pump communicate with each other, first oil pipe's the bottom and the top end screw thread connection of teeter chamber of taking out, oil pipe's top end screw thread connection is taken out to the bottom and the second of teeter chamber, the second is taken out the avris of oil pipe bottom and is adopted the end end screw thread connection of oil pipe main part, the bottom that the second was taken out in the oil pipe is equipped with the ring baffle, the inboard of ring baffle and the bottom fixed connection who strains a section of thick bamboo, the av