| 摘要 |
PROBLEM TO BE SOLVED: To provide a flow rate regulating valve which stops drainage to the downstream in the case where drainage of a predetermined amount or more generates from the upstream side.SOLUTION: A flow rate regulating valve includes: a water tank; an opening; a float; a regulation member; a guide member; a valve boy; and a connection mechanism. In the water tank, drain water that flows inside from the upstream is drained from an outflow pipe connected to a lower part. The opening communicates the water tank and the outflow pipe. The float is disposed in the water tank and can move vertically according to water level fluctuation in the water tank. The regulation member regulates a lower limit position of the movement of the float above the opening. The guide member guides the float vertically. The valve body is disposed below the opening, and opens/closes the opening. The connection mechanism connects the float and the valve body, and opens/closes the opening by moving the valve body vertically being interlocked with the movement of the float.SELECTED DRAWING: Figure 1 |
