Patent ID: 8789559

Claim:
A flow path switching valve comprising: a tube body which comprises one or more inlets opened to communicate with a fluid supplying source and supplying fluid into an inside, two or more outlets opened at opposite sides to the respective inlets and selectively alternately discharging the fluid from the inside, drains opened at opposite ends and discharging operating fluid introduced through the outlets, and a plurality of seat units respectively protruding on an inner circumference between the inlets, the outlets and the drains; an operating rod which is coaxially mounted in the tube body, comprises a plurality of projection units protruding as being spaced apart from each other on an outer circumference thereof, is connected to an operating unit at one end thereof hermetically exposed to an outside, and reciprocates forward and backward in an axial direction within the tube body by the operating unit; and a plurality of valve bodies which are movably mounted onto the outer circumference of the operating rod and arranged between the respective projection units to face and one-to-one correspond to the respective seat units, wherein the operating rod comprises a main bar arranged in a section between sucking seat units and processed to have bolts at opposite ends thereof, end bars arranged in an outer section of drain seat units, each end bar processed to have a bolt hole at an inner side facing the main bar; and connection bars arranged between the main bar and the respective end bars, and processed to have a bolt hole at an inner side facing the main bar and a bolt at an outer side facing the end bar.