AUTOMATIC SWITCH VALVE FOR REDUCING COMPONENTS BY INTEGRATING A VALVE BOX WITH A SWITCH BODY INSTALLED WITH A THREE-WAY VALVE

摘要

PURPOSE: An automatic switch valve is provided to remove a pipe line work by connecting a pressure chamber of a switch body and a valve installation space by a fluid pressure transmitting passage and to accelerate response properties by supplying directly fluid pressure from a three-way valve to the pressure chamber in changing a supply line. CONSTITUTION: An automatic switch valve comprises a switch body(10) composed of a delivery line(18) for the other direction installed between two-system supply lines and a valve disposed between the supply line and the delivery line, and connected and mounted with a valve rotating shaft(12) having a switch rotor for rotating the valve; a crank mechanism(20) fixed under the switch body, linked and installed with a crank rod(21) through a switch member arranged at the switch rotor, and coupled and installed with a piston(24) elastically disposed to the crank rod by a first spring(25) to check a switch state according to a movement position of the piston; a diaphragm mechanism(30) fastened on the upper part of the switch body to lock or release the switch rotor; a reset mechanism(40) settled in the front side of the switch body to rotate manually the valve rotating shaft and the switch member; a valve installation space(11d) formed at the lower part of the switch body and installed with a three-way valve(11); a hole integrated at both ends of the valve installation space to connect the supply lines; and a fluid pressure transmitting passage(19) connected from a pressure chamber(15) of the switch body installed with the diaphragm mechanism to the valve installation space.