Button switch three-way valve

A button switch three-way valve includes a fixation unit, the fixation unit is provided with an inlet waterway and first and second outlet waterways, first and second priority valves are disposed between each respective outlet waterway and the inlet waterway, first and second priority valves are provided with respective first and second valve shafts, the switching of each outlet waterway to the inlet waterway is controlled by sliding of the respective valve shaft;

• wherein the fixation unit is provided with first and second control surfaces opposite to each other, each control surface provided with upper, central and lower lock grooves;
• a button is further disposed between the first and second control surfaces, the button is provided with a central part and two connection parts in the two sides of the central part, the central part is pivotably jointed to the fixation unit, two connection parts are separately connected to the two valve shafts to control the sliding of the two valve shafts, the exterior sides of each connection part having a separate lock tooth to couple to the lock grooves,
• the button can swing relatively to the fixation unit from side to side and can be situated in a first state, a second state and a third state, thereinto:
• when the button is situated in the first state, the lock tooth of the first connection part is coupled to the lower lock groove of the first control surface, the lock tooth of the second connection part is situated in the upper lock groove of the second control surface, the first priority valve is turned on, the second priority valve is cut off;
• when the button is situated in the second state, the lock teeth of the first and second connection parts are coupled to the central lock groove of the first and second control surfaces, the first and second priority valves are turned on;
• when the button is situated in the third state, the lock tooth of the second connection part is coupled to the lower lock groove of the second control surface, the lock tooth of the first connection part is situated in the upper lock groove of the first control surface, the second priority valve is turned on, the first priority valve is cut off.

A button switch three-way valve includes a fixation unit, the fixation unit is provided with an inlet waterway and two outlet waterways, first and second priority valves are disposed between each outlet waterway and the inlet waterway, each priority valve is provided with a valve shaft, the switching between the outlet waterways connected to the inlet waterway is controlled by the sliding of the valve shaft;

• wherein the button is provided with a central part and two connection parts in the two sides of the central part, the central part is pivotably jointed to the fixation unit, two connection parts are separately connected to the two valve shafts to control the sliding of the two valve shafts,
• wherein the fixation unit is provided with first and second opposite control surfaces;
• a sliding groove is disposed between the two control surfaces, a central part of the sliding groove is provided with at least a positioning concave spot;
• an elastic contact is disposed below the central part of the button to slide along the sliding groove,
• the button is assembled outside the two control surfaces, two clearances are separately disposed between inner walls of two ends of the button and the two control surfaces;
• the button can swing from side to side relatively to the fixation unit and can be situated in a first state, a second state and a third state, thereinto:
• when the button is situated in the first state, the inner wall of one side of the button impinges on the first control surface, the second priority valve is turned on, the first priority valve is cut off;
• when the button is situated in the second state, the elastic contact of the button is situated in the positioning concave spot of the sliding groove;
• the first and second priority valves are turned on;
• when the button is situated in the third state, the inner wall of one side of the button impinges on the second control surface, the first priority valve is turned on, and the second priority valve is cut off.