Title:
AIR VALVE, CONNECTING MECHANISM FOR THE AIR VALVE, AND THE AIR VALVE WITH AUXILIARY VALVE
Document Type and Number:
Japanese Patent JP2014159820
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent an air valve and a pipe passage from displacing or coming off even when being vibrated by an earthquake or the like, and to restrain leakage.SOLUTION: An air valve 1 includes a loosely moving valve element 13 having a small air hole 12 and lifting and lowering to open and close a large air hole 6 in a valve casing 5 having the large air hole 6, a float valve element 11 lifting and lowering to open and close the small air hole 12 of the loosely moving valve element 13, and a lower opening 8. Four claw parts 23 are formed at prescribed intervals on an inner peripheral surface of the lower opening 8, and the claw parts 23 are fitted in an inner surface 3a of a rising pipe 3 of a pipe passage 2. A flange part 24 of the air valve 1 and a flange part 25 of the rising pipe 3 are connected by a bolt and a nut.
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Inventors:
SUNAGA TOSHIO
EBINUMA MINORU
EBINUMA MINORU
Application Number:
JP2013029804A
Publication Date:
September 04, 2014
Filing Date:
February 19, 2013
Export Citation:
Assignee:
MAEZAWA KOGYO
International Classes:
F16K24/00; F16K5/06; F16K27/00; F16K27/02
Domestic Patent References:
| JP2000320709A | 2000-11-24 | |||
| JPH01140084U | 1989-09-25 |
Attorney, Agent or Firm:
Masatake Shiga
Norio Takahashi
Takashi Watanabe
Mitsuyoshi Suzuki
Yasuhiko Murayama
Norio Takahashi
Takashi Watanabe
Mitsuyoshi Suzuki
Yasuhiko Murayama
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