Patent ID: 11913312
Assignee: WUXI HENGXIN BEISHI TECHNOLOGY CO., LTD
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC E  F | IPC E  F

Claim 7:
8. The intelligent oil extraction system, as recited in claim 7, wherein the movable part is a connecting shaft, the fixed part is a connecting seat, and the elastic part is a spring; the elastic telescopic component further comprises a limit component; the connecting shaft is configured to be inserted into a cavity of the connecting seat, and to moves along an axial direction of the connecting seat to transmit torque by cooperating with the connecting seat; the spring is sleeved outside the connecting shaft and/or the connecting seat; one end of the spring abuts against the connecting seat or the sucker rod, and the other end abuts against the connecting shaft or the rotor; the limit component prevents the connecting shaft from separating from the connecting seat; an end of the rotor is adjacent to the connecting shaft, to which a first threaded joint is connected; an end of the connecting shaft is adjacent to the rotor, to which a second threaded joint is connected; the first threaded joint and the second threaded joint are connected by a threaded sleeve; the connecting seat is integrally formed or fixedly installed on the sucker rod; the limit component comprises a first convex flange and a limiting plate; the first convex flange is connected to an end of the connecting shaft adjacent to the connecting seat, and protrudes outwards in a diameter direction; the limiting plate is connected to an end of the connecting seat adjacent to the connecting shaft, and protrudes inwards in a diameter direction; external teeth are provided at an end of the connecting shaft adjacent to the first convex flange, and internal teeth are provided on the limiting plate; the external teeth mesh with the internal teeth; steps, which matches with the limiting plate, are provided on the connecting shaft.