Automatic bath additive feeder

An automatic bath additive feeder comprising:

• an additive container confining an inner space that is adapted to receive an additive bag therein, and having a top open end;
• and
• a valve unit including
• a valve body that has a bottom wall mounted on and covering sealingly said top open end of said additive container and formed with first and second valve openings which are in fluid communication with said inner space, said valve body further having an annular flange extending transversely from said bottom wall and formed with an inlet adjacent to said first valve opening and an outlet adjacent to said second valve opening, said annular flange having a top open end and confining a valve chamber that is in fluid communication with said inlet, said outlet, and said first and second valve openings, said inlet being adapted to be connected to a liquid supply for passage of a liquid flow therethrough,
• a rotating part mounted on and covering sealingly said top open end of said annular flange, said rotating part including a valve disk disposed in said valve chamber, seated rotatably on said bottom wall of said valve body, and formed with a first hole corresponding to said first valve opening and a second hole corresponding to said second valve opening, said valve disk being rotatable between an opened position, in which, said first and second holes are respectively registered with said first and second valve openings, thereby permitting fluid communication between said valve chamber and said inner space through said first and second valve openings, and a closed position, in which, said first and second valve openings are respectively offset from said first and second holes and are blocked by said valve disk, thereby preventing fluid communication between said valve chamber and said inner space, and
• a partitioning plate mounted securely in said valve chamber, disposed between said first and second holes, and extending in a transverse direction relative to said valve disk so as to divide said valve chamber into a first chamber half that is in fluid communication with said inlet and said first hole, and a second chamber half that is in fluid communication with said outlet and said second hole;
• wherein said valve unit is formed with a channel between said first and second chamber halves such that the liquid flow entering into said first chamber half through said inlet is divided into a main stream that flows from said first chamber half through said channel and into said second chamber half and a branched stream that flows from said first chamber half through said first hole and said first valve opening and into said inner space and that further flows from said inner space through said second valve opening and said second hole and into said second chamber half when said valve disk is rotated to said opened position, thereby permitting transport of the additive into said second chamber half and discharging of the liquid flow together with the additive from said outlet.