Sanitary mixing valve assembly
AssigneeKnebel & Rottger GmbH & Co.
InventorGunter Sieberhagen
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Abstract
The invention comprises a mixing valve assembly with a cold and hot water inlet, a mixing chamber, and a mixed water outlet, wherein the mixed water temperature is adjustable by rotation of the actuator, and wherein a constant water flow can be set by axial depression of the actuator. More reliable operation is achieved, along with simplifications in manufacture and installation, by having on the assembly a locking device for the actuator, so constructed that when the actuator is depressed it is held by the locking device in the new position but is released when again depressed.
Claims18
A mixing valve assembly comprising:
- a housing formed with a cold water inlet, a hot water inlet, a mixing chamber connectable to said inlets, and a mixed water outlet connectable to said mixing chamber;
- flow control valve means in said housing and mixed water temperature control means in said housing connected sequentially in the direction of water flow to said mixing chamber
- an actuator operatively connected to the flow control valve means and the mixed water temperature control means, said flow control valve means being controlled by depression of the actuator and said mixed water temperature control valve means being controlled by rotation of the actuator;
- and
- locking means for automatically holding said actuator in the position to which said actuator is depressed and automatically releasing said actuator upon a second depression of said actuator and a collar surrounding said actuator, said collar being rotatable but axially immovable with respect to said actuator, said collar defining in its periphery an approximately heart shaped guide slot having two notches one behind the other, said assembly having a fixed locking stud positionable with respect to the length of said guide slot and positionable in either of said nothces to hold the actuator in an axial position.
A sanitary mixing valve assembly, comprising:
- a valve housing formed with a cold-water inlet, a hot-water inlet, and a mixed-water outlet;
- a rotary mixing valve in said housing between said inlets and said outlets for effecting mixing of hot and cold water from said inlets to produce a mixture which is discharged from said outlet;
- an actuator angularly coupled with said mixing valve for rotating said mixing valve about an axis, said actuator being shiftable along said axis relative to said housing and said mixing valve;
- a spring in said housing bearing upon said actuator for biasing said actuator into one axial position;
- a respective flow-control valve in each of said inlets having a stem displaceable parallel to said axis and positioned for engagement by said actuator upon displacement thereof axially from said one position to another axial position in which said inlets are unblocked, said flow-control valves communicating with said mixing valve in said other axial position;
- and
- detent means acting upon said actuator and effective to retain said actuator in each of said axial positions until said actuator is axially displaced, whereupon said actuator is then retained by said detent means in the other of said positions, said detent means includes a sleeve member formed on said actuator, said housing having a housing member surrounding and juxtaposed with said sleeve member, one of said members being formed with a generally heart-shaped recess having axially spaced notches, the other of said members being formed with a pin projecting radially into said recess and engagable selectively in said recesses in accordance with the position of said actuator.
Dependencies are inferred from the claim text.