| 摘要 |
A floatless water inlet valve for use in toilet tank comprising an inlet pipe, a valve body, a valve arrangement, a valve control device and a central pipe. The valve body includes a dual sleeve tubular member, the lock means end of which is capable of vertically adjustably engaging with the inlet pipe by the inner circumference of the outer pipe of the tubular member. The upper section above the flange of the inlet pipe forms into an annular retaining part composed of spacings mostly in definite arrangement thereby permitting adjustment of the valve in height in relation to the height of the water tank and regulation of the water level in the tank. The valve arrangement disposed on the top end of the tubular member includes a block the interior of which forms a valve house and a release valve, a rubber valve placed beneath the block and being closable and openable in respect of the opening at the upper end of inner sleeve pipe. A lever of the valve control device is pivotally connected at its base end to the support at the valve arrangement while the free end thereof extends transversely towards the disk portion of the valve body and pivotally connected to this end is a cylinder. An expansible and contractible rubber cap is provided at the outer circumference of the cylinder and opens downwardly. The central pipe inserted in the center of the inlet pipe is snugly engageable by its upper portion outer circumference with the inner circumference of inner pipe of the tubular member. While the lower end of central pipe is provided with a unidirectional valve, its upper end opening opposes the rubber valve. |
