| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust valve not causing water leakage even when water rapidly flows into a valve chamber from an inlet. SOLUTION: The valve chamber 3 opened with the inlet 4 in a lower part, and opened with an outlet 5 in an upper part is formed in a casing comprised of a body 1 and a lid 2. A valve seat 6 is formed between the valve chamber 3 and the outlet 5. The body 1 integrally has a plurality of ribs 9 protruding inward on a valve chamber 3 inner wall, and a float receiver 10 with a bottomed substantially cylindrical shape, provided with a through hole 11 communicating an inner side with an outer side, is arranged in an inner side of the ribs 9. A spherical float 12 is arranged in a free state in the float receiver 10. The float receiver 10 is arranged, energized toward an inlet 4 side by a coil spring 13 used as an elastic member. The float receiver 10 is energized toward the inlet 4 side by energizing force of the coil spring 13, and it is not displaced toward an outlet 5 side when air flows in or water gradually flows into the valve chamber 3 from the inlet 4, but when water rapidly flows in, it is displaced toward the outlet 5 side against the coil spring 13 by force of the water. COPYRIGHT: (C)2007,JPO&INPIT
|
