Water flow regulator

1. A water flow regulator that generates bubble water, comprising:

a housing portion having defined therein a mutation chamber and being provided with a suction passage that connects interior and exterior portions of the mutation chamber;

a diversion device that is disposed in and fixedly connected to the housing portion, that is located on and in communication with the mutation chamber, and that comprises:

a central base;

a deflecting annular wall integral with and extending from the central base to contact the mutation chamber; and

a peripheral wall integral with and extending from the deflecting annular wall back toward the central base and being provided with diversion holes,

wherein the deflecting annular wall has internal and external peripheral surfaces that extend radially from the central base and flare to become gradually larger to contact the mutation chamber and to connect with the peripheral wall;

an annular seat that has defined therein an internal hole with a hole wall and with at least a part of the central base accommodated by and extending outwardly from the internal hole, and that is fixedly connected to the diversion device and to the housing portion; and

an elastic water stop ring that is supported on the annular seat proximate the central base of the diversion device,

wherein the diversion device divides water flow which enters the mutation chamber and generates a negative pressure and is mixed with sucked-in air from the suction passage to generate said bubble water,

wherein a water flow clearance is formed between the central base and the hole wall of the internal hole of the annular seat and has a water flow area, the water flow clearance is disposed before the deflecting annular wall to make water directly flow to the deflecting annular wall through the water flow clearance, and

wherein the water stop ring that is supported on the annular seat surrounds and fits to the central base so that the water flow area of the water flow clearance is adjustable by water pressure so as to save water.

2. The flow regulator according to claim 1 , wherein the annular seat is fixedly connected to the peripheral wall, a protruding wall having an internal side extends from the annular seat to surround the internal hole of the annular seat, and the water stop ring has an external side that contacts the internal side of the protruding wall.

3. The flow regulator according to claim 2 , further comprising a filter that is provided and assembled on the protruding wall.

4. The flow regulator according to claim 2 , wherein the peripheral wall has a peripheral portion that extends into a support plate that has an external periphery that extends to form a connecting wall, the annular seat is supported on the support plate, and the annular seat is fixedly connected to the diversion device by the cooperation of the connecting wall and the annular seat.

5. The flow regulator according to claim 1 , wherein the central base is annularly provided with a plurality of protrusions with spaces therebetween corresponding to the water stop ring.

6. The flow regulator according to claim 1 , wherein the housing portion comprises a housing and a fixed ring, the housing comprises an annular external wall disposed with a plurality of suction passages running through interior and exterior portions of the annular external wall, and the fixed ring is fixedly connected to a portion of the annular external wall, and the diversion device is fixedly connected to the fixed ring.

7. The flow regulator according to claim 6 , wherein the fixed ring is disposed with a conical surface corresponding to the diversion holes of the peripheral wall, and the conical surface surrounds the diversion device so that water flows out of the diversion holes and impacts the conical surface.

8. The flow regulator according to claim 7 , wherein the deflecting annular wall has an external revolution surface that expands radially.

9. The flow regulator according to claim 1 , wherein the deflecting annular wall has an external revolution surface that comprises a smooth curve.

10. The flow regulator according to claim 1 , wherein the deflecting annular wall has an external revolution surface that comprises an arc having a circular center point that faces outwardly.