Regulating device for a water outflow, particularly from sanitary fittings

A regulating device for a water outflow, comprising:

• a cylindrical sleeve with a central axis, said cylindrical sleeve is for introducing the water outflow at a water inlet opening,
• a bearing plate disposed within the cylindrical sleeve and perpendicular to the axis of the sleeve,
• a throttling and regulating element that can rotate around the axis relative to the bearing plate and move in the direction of the axis, and through which water can flow from one side of the bearing plate to the other side of the bearing plate,
• an annular distributor space for water, which space is defined between the bearing plate, sleeve and throttling and regulating element, and into which water can flow from the cylindrical sleeve to a water outlet,
• said bearing plate having a through borehole extending in a direction of the central axis of the sleeve with an inner thread,
• said throttling and regulating element having an outer thread so that when the outer threads of the throttling and regulating element are engaged with the inner threads of the through borehole of the bearing plate, a rotation of the throttling and regulating element around the central axis of the sleeve leads to a movement of the throttling and regulating element in the direction of the central axis and relative to the sleeve,
• said throttling and regulating element having a threaded center bore extending in the direction of said center axis, and at least one cross borehole disposed underneath the outer threads of the throttling and regulating element,
• wherein a device for the fine throttling of water includes a regulating screw having outer threads which are screwed into the threaded center bore of the throttling and regulating element, and which regulating screw is adjustable so as to finely adjust the flow of water into the distributor space,
• said at least one cross bore in said throttling and regulating element extending transverse to said central axis for water communication from the water inlet opening to the distributor space,
• said regulating screw adjustable relative to the throttling and regulating element and including a tip thereof engaging the at least one cross borehole to thus change the flow ratio in the at least one cross borehole for fine adjustment of water flow, and
• a mechanism for metering an additional amount of air into the water jet at the water outlet by moving the throttling and regulating element in the axial direction relative to the cylindrical sleeve.