Flow regulator

The utility model provides a flow regulator, includes casing, lower casing and cushion, upward through the connecting axle coaxial coupling between casing and the lower casing, goes up the terminal surface of casing and the terminal surface of lower casing and sets up relatively, the cushion is the annular, and the cushion lies in the casing and just surrounds the connecting axle down between the casing, upward the terminal surface of casing is equipped with the feed liquor hole, and the cushion is fixed for last casing, corresponds the feed liquor hole on the cushion and is equipped with the through -hole, and lower casing is equipped with the annular groove of width gradual change, and the wide end of recess is equipped with out the liquid hole, and the commentaries on classics movable rail mark that the through -hole centers on the connecting axle matches with the annular groove, be equipped with stationary hump and spacing arch on the annular rubber pad circumference, the terminal surface of going up the