Waterpower oscillator

The utility model discloses a waterpower oscillator belongs to oil drilling technical field. It includes hollow interior casing, is arranged in the screw rod of casing, the inside wall of interior casing is the centrosymmetric wave, be equipped with the annular space between the inside wall of screw rod and interior casing, drive screw rotates when being used for the fluid to pass through, still including being cylindricly and upper end open -ended carousel, the diapire of carousel and the lower extreme fixed connection of screw rod, be equipped with the discharge orifice on the diapire of carousel, be equipped with the circular arc portion of undercut on the up end of carousel, the shell body on the casing including the cover is established still, the lower extreme of shell body is equipped with the up end butt of first gyro wheel and carousel, a circular arc portion is drive shell body up -and -down motion when first gyro wheel for the carousel. It can effectively reduce " backing pressure " phenomenon for