Throttling element structure with sealing function for throttling valve

The invention belongs to the technical field of throttle valves, and particularly relates to a throttle valve throttling element structure with a sealing function, which comprises a throttle valve rod, a throttle valve seat, an O-shaped ring, an anti-extrusion sealing ring, a T-shaped sealing ring, a check ring, a lip-shaped packing and the like, the valve rod is moved to be attached to the surface of the valve seat, so that the sealing function of the throttle valve can be realized, and zero leakage is realized; the valve rod moves in a straight stroke mode, and a driving mechanism such as a pneumatic driver, an electric driver, a hydraulic driver or a hand wheel driving mechanism can be modified and additionally installed according to different operation requirements. Therefore, the throttling element of the novel throttling valve with the sealing function is reasonable in design and high in applicability, and compared with a conventional throttling valve, the throttling element has excellent throttling and