Pilot valve switch mechanism and a combined shower applied with the pilot valve switch mechanism

A pilot valve switch mechanism, wherein comprising:

• a fixed portion, which is disposed with an inlet waterway (10), a first outlet waterway (20), a second outlet waterway (30) and a control hole (40) capable to connect to the outlet waterways (20, 30), the first outlet waterway (20) is disposed with a first outlet (21), the second outlet waterway (30) is disposed with a second outlet (31);
• a valve spool (100) is slidably assembled inside the fixed portion along the inlet waterway (10), the valve spool (100) is disposed with a slim hole (110) connected to the inlet waterway (10), the valve spool (100) and the fixed portion form a pressure cavity (50), the control hole (40) and the slim hole (110) are connected to the pressure cavity (50);
• by opening or closing the control hole (40), the water pressure of the pressure cavity (50) is controlled to drive the valve spool (100) to move along the inlet waterway (10) to alternately close the first outlet (21) or the second outlet (31), so that the inlet waterway (10) is switched to connect to the first outlet waterway (20) or the second outlet waterway (30).