Drilling tool vibrator of horizontal well

The utility model relates to a drilling tool vibrator of a horizontal well, which includes a casing, a piston head, a disc spring, an upper shoulder, a static sleeve, a sliding shaft, a valve casing body, a spring, a central pipe, a sliding valve body, a nozzle, water holes, a second flow passage, a valve plug, a first flow passage and a fixed valve seat, wherein the casing is in threaded connection with the static sleeve; the sliding shaft is mounted in a center hole formed by the casing and the static sleeve; the static sleeve is in spline fit with the sliding shaft; the fixed valve seat is fixed inside the valve casing body through threads; and the valve plug is matched with the fixed valve seat. When water pressure at the upper end of the valve plug reaches the limit value, the valve plug is separated from the fixed valve seat; the central pipe downwards compresses the spring, drilling fluid flows through the first flow passage and the second flow passage sequentially; when pumping flow varies, water pres