Micro-bubble generator

1. A micro-bubble generator provided between an input end and an output end of a water outlet device, said micro-bubble generator comprising:

a water inlet member, including a first main body adjacent to said input end, and a first channel penetrating said first main body, said first main body being provided at one end penetrated by said first channel with a first junction surface; and

a water outlet member, including a second main body adjacent to said output end, and a second channel penetrating said second main body, said second main body being provided at one end penetrated by said second channel with a second junction surface, and said second main body is provided with a sleeve at other end opposite to said second channel, wherein said sleeve is arranged annularly toward said output end;

wherein said water inlet member and said water outlet member are abutted against each other, with said first junction surface facing said second junction surface, said first channel being communicated with said second channel, and at least one of said first junction surface and said second junction surface are provided with a plurality of chiseled shallow recesses which respectively forms a gas inlet gap after said first junction surface being engaged with said second junction surface, said gas inlet gap communicating external air to said first channel and said second channel.

2. The micro-bubble generator according to claim 1 , wherein each gas inlet gap is provided with an air vent perforation at an outer side wall of said first main body adjacent to an outer side wall of said second main body.

3. The micro-bubble generator according to claim 1 , wherein said sleeve of said second main body comprises a water outlet chamber adjacent to said output end, and an inner side wall of said second main body comprises an internal screw thread adjacent to said water outlet chamber.

4. The micro-bubble generator according to claim 3 , wherein said second main body is locked with an eddy current guiding pipe at said internal screw thread of said water outlet chamber of said sleeve, and said eddy current guiding pipe comprises a plurality of blades arranged in a spiral manner, a plurality of eddy current passages respectively arranged between two of said plurality of blades, and an outer casing tube surrounding said plurality of blades and said plurality of eddy current passages, and wherein a plurality of stepped surfaces are provided on a surface of each of said plurality of blades corresponding to each of said plurality of eddy current passages.

5. The micro-bubble generator according to claim 3 , wherein said second main body is locked with a through-hole end cap at said internal screw thread of said water outlet chamber of said sleeve adjacent to said output end, and a bubble-multiplying part disposed between said through-hole end cap and said second main body.

6. The micro-bubble generator according to claim 5 , wherein said bubble-multiplying part comprises at least one multiplying net and at least one spacing ring connected to said multiplying net.

7. The micro-bubble generator according to claim 1 , wherein said micro-bubble generator further comprises a regulating part which includes a regulating room constituted by a depression in an opposite side of said first junction surface of said first main body, a regulating screw rod penetrating said first main body and locked with said second main body, and an inner thread screwedly threaded with said regulating screw rod.

8. The micro-bubble generator according to claim 7 , wherein said regulating screw rod is fixed in said regulating room by riveting.

9. The micro-bubble generator according to claim 7 , wherein said micro-bubble generator further comprises a position-limiting part, said position-limiting part including a position-limiting room constituted by corresponding depressions in said first junction surface and said second junction surface, and a position-limiting bolt movably provided in said position-limiting room, and wherein said regulating screw rod is operated in a rotating manner to change a depth of screw-threaded connection between said regulating screw rod and said inner thread.

10. The micro-bubble generator according to claim 7 , wherein said regulating part includes a regulating screw head moved along with said regulating screw rod, a fixing ring fixing said regulating screw head to an inner wall of said regulating room, said fixing ring being openly provided with an operating through-hole allowing a tool passing therethrough and operating said regulating screw head, and a plurality of water-passing holes allowing water stream passing therethrough.

11. The micro-bubble generator according to claim 1 , wherein one of said first junction surface and said second junction surface is depressedly provided with a gasket groove which is accommodated with a gasket.

12. The micro-bubble generator according to claim 11 , wherein said gasket is further an embossing gasket, and a drop between said embossing gasket and said gasket groove is provided to form another gas inlet gap between said first junction surface and said second junction surface when said first junction surface and said second junction surface are abutted against each other.

13. The micro-bubble generator according to claim 1 , wherein a diameter of said second channel is greater than a diameter of said first channel.

14. The micro-bubble generator according to claim 2 , wherein each gas inlet gap is tapered from said corresponding air vent perforation toward an engagement between said communicated first channel and second channel.

15. The micro-bubble generator according to claim 1 , wherein an inner side wall of said water inlet member adjacent to said input end is provided with an adapting screwed groove.