Title:
通気弁用の保護部材、通気弁装置、及び、配管構造
Document Type and Number:
Japanese Patent JP6944404
Kind Code:
B2
Abstract:
To provide the protective member for the vent valve, that prevents dirt from adhering to the vent valve from the inside of a piping material without hindering inflow of outside air as much as possible.SOLUTION: The protection member 150 comprises a louver part 153 that is disposed closer to an axial deep part side of a tubular part than the vent valve 100 so as to at least partially cover the vent valve 100 from the axial deep part side. The louver part 153 has a plurality of annular blade bodies 153a arranged concentrically and spaced apart from each other. A ventilation path that allows the inflow of air from the vent valve 100 to the piping material is formed between adjacent blade bodies 153a.SELECTED DRAWING: Figure 1
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Inventors:
Atsushi Nakamura
Application Number:
JP2018056478A
Publication Date:
October 06, 2021
Filing Date:
March 23, 2018
Export Citation:
Assignee:
Mirai Industry Co., Ltd.
International Classes:
E03C1/122; F16K15/14; F16K24/06
Domestic Patent References:
| JP2015232369A | ||||
| JP201474483A | ||||
| JP201031594A | ||||
| JP2008101455A |
Foreign References:
| US20170298601 |
Attorney, Agent or Firm:
Hiroe Associates Patent Office