| 摘要 |
Provided is a valve assembly having a simple construction and controlling a flow of a fluid in both directions. In an aspect, the valve assembly includes a rotating shaft 16 rotatably supported and having an internal passage 20 formed within the rotating shaft, first and second connecting portions 26 and 28 connected to both sides of the internal passage within the rotating shaft and adapted to externally send a fluid passing through the internal passage and to receive an external fluid, and a check ball 18 embedded in the internal passage and adapted to control a flow of the fluid. Furthermore, check ball seating portions 24a and 24b adapted to communicate with the first connecting portion and the second connecting portion and to have the check ball seated therein are formed on both insides of the internal passage 20. When the internal passage 20 is inclined by the rotation of the rotating shaft 16, the check ball closely adheres to a check ball seating portion at a low position due to a setting force or buoyancy and restricts a flow of the fluid from the internal passage to any one of the first and the second connecting portions. |
