Title:
AIR VALVE, THE AIR VALVE WITH AUXILIARY VALVE, AND CONNECTING MECHANISM FOR THEM
Document Type and Number:
Japanese Patent JP2014159821
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent an air valve and the other member such as a pipe passage or an auxiliary valve 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 valve casing 5 having a large air hole 6, a loosely moving valve element 13 having a small air hole 12 and lifting and lowering in the valve casing 5 to open and close the large air hole 6, and a float valve element 11 lifting and lowering in the valve casing 5 to open and close the small air hole 12 of the loosely moving valve element 13. A flange part 23 is formed on an outer side of a lower opening 8 of the valve casing 5, and an almost L-shaped arm part 24 is formed on an outer side thereof at intervals of 90 degrees. A bent part 24a of the arm part 24 has an insertion through hole 24b, a fastening bolt 28 is inserted into the insertion through hole of the bent part 24a, and is screwed with a nut 29 arranged back and forth. A flange part 26 of a rising pipe 3 is attached to a lower side of the flange part 23 of the air valve 1. An outer peripheral surface 26a of the flange part 26 is pressed from four directions by the fastening bolt 28 to be fixed.
Inventors:
SUNAGA TOSHIO
EBINUMA MINORU
EBINUMA MINORU
Application Number:
JP2013029805A
Publication Date:
September 04, 2014
Filing Date:
February 19, 2013
Export Citation:
Assignee:
MAEZAWA KOGYO
International Classes:
F16K27/00; F16K24/00; F16K31/18
Domestic Patent References:
| JPH03123193U | 1991-12-16 | |||
| JPS6392876U | 1988-06-15 | |||
| JP2011102619A | 2011-05-26 | |||
| JPS60132198A | 1985-07-15 |
Attorney, Agent or Firm:
Masatake Shiga
Norio Takahashi
Takashi Watanabe
Mitsuyoshi Suzuki
Yasuhiko Murayama
Norio Takahashi
Takashi Watanabe
Mitsuyoshi Suzuki
Yasuhiko Murayama