This pump is a tubular pump with anti air lock and anti sand jamming capabilities. It adds a ring valve device on the basis of the conventional tubular oil pump. The ring valve is fitted on the valve stem with a small gap, and the frictional force generated between the up and down movement of the valve stem and the ring valve helps the ring valve to quickly open and close the pump. During the downward stroke, the annular valve bears the load of the liquid column in the oil pipe, so that the floating valve does not bear the liquid injection load, which can quickly open, reduce hydraulic shock, prevent air lock, improve pump efficiency, and extend pump service life. The annular valve can also block sand particles from falling into the pump barrel, preventing sand from jamming the plunger. This pump is well suited for high gas content oil wells with an oil to gas ratio of less than 420 m3/ton, as well as for low angle and sand bearing wells.