JP4161895B2 - ガスセンサ及びガス漏れ警報器 - Google Patents
ガスセンサ及びガス漏れ警報器 Download PDFInfo
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- JP4161895B2 JP4161895B2 JP2003411423A JP2003411423A JP4161895B2 JP 4161895 B2 JP4161895 B2 JP 4161895B2 JP 2003411423 A JP2003411423 A JP 2003411423A JP 2003411423 A JP2003411423 A JP 2003411423A JP 4161895 B2 JP4161895 B2 JP 4161895B2
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- Prior art keywords
- gas
- sensor
- inspection
- cap
- sensor cap
- Prior art date
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- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Emergency Alarm Devices (AREA)
Description
1a 掛け金
2 円形格子状流通孔
4、24 プリント基板
5、22 センサベース
6 ピン
7a ガス検知素子
7b 薄膜半導体式ガス検知素子
8 二重金属メッシュ
9、21 センサキャップ
10 雑ガスフィルター
11 点検用開口孔(点検用通気孔)
12 点検ガス供給手段
13、25 外筒
14 点検ガス注入口
15a 点検ガス供給凹溝
15b 点検ガス供給口
16 閉止栓
17 圧縮ばね
18、26 ストッパーブロック
19 閉止栓移動ガイド穴
20 Oリング様シール
27 穴
31 上カバー
32、23 下カバー
GA 家庭用複合型都市ガス漏れ検知器、ガス漏れ警報器
S ガスセンサ
T 逆止弁式ガス漏れ点検機構
Claims (6)
- 少なくとも雑ガスフィルターを備えたセンサキャップと該センサキャップに係合するセンサベースとでガス検知素子を内蔵してなるガスセンサにおいて、
前記センサキャップの周面に点検用通気孔を設け、前記センサキャップとの間にシール部材を介装して前記センサキャップを覆う外筒と、該外筒の内面に設けられ、前記センサキャップの点検用通気孔と連通する凹溝と、前記外筒の端面から前記凹溝に連通し、前記端面に近い側の開口径が前記端面から遠い側の開口径よりも小さい段付き孔である通路と、該通路内の段付き部に圧縮ばねを介して押し付ける閉止栓とを具備していることを特徴とするガスセンサ。 - 前記点検用通気孔は、前記センサキャップの周面のうち前記雑ガスフィルターに対向する領域以外の位置に設けられていることを特徴とする請求項1に記載のガスセンサ。
- 前記外筒の内面の前記凹溝は、前記センサキャップの周面の前記点検用通気孔に対応する位置でリング状に形成されていることを特徴とする請求項1に記載のガスセンサ。
- 前記シール部材はOリング様のシールであり、該シールで前記凹溝の周囲をシールしていることを特徴とする請求項1に記載のガスセンサ。
- 少なくとも雑ガスフィルターを備えたセンサキャップと該センサキャップに係合するセンサベースとでガス検知素子を内蔵してなるガスセンサにおいて、
前記センサベースに点検用通気孔を設け、前記センサベースの前記センサキャップとは反対の側に設けられた外筒を具備し、該外筒は、一端部で前記センサキャップの前記点検用通気孔と連通し、かつ、前記一端部に近い側の開口径が前記一端部から遠い側の開口径よりも大きい段付き孔である通路を有するものであり、該通路内の段付き部に圧縮ばねを介して閉止栓を押し付けるようにしていることを特徴とするガスセンサ。 - 請求項1ないし5のいずれか1項に記載のガスセンサを内部に搭載しているガス漏れ警報器。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003411423A JP4161895B2 (ja) | 2003-12-10 | 2003-12-10 | ガスセンサ及びガス漏れ警報器 |
Applications Claiming Priority (1)
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JP2003411423A JP4161895B2 (ja) | 2003-12-10 | 2003-12-10 | ガスセンサ及びガス漏れ警報器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005172551A JP2005172551A (ja) | 2005-06-30 |
JP4161895B2 true JP4161895B2 (ja) | 2008-10-08 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2003411423A Expired - Fee Related JP4161895B2 (ja) | 2003-12-10 | 2003-12-10 | ガスセンサ及びガス漏れ警報器 |
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JP (1) | JP4161895B2 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4827249B2 (ja) * | 2006-09-15 | 2011-11-30 | 理研計器株式会社 | ガス検出器用フィルタ |
JP5120881B2 (ja) * | 2007-10-23 | 2013-01-16 | 富士電機株式会社 | 可燃性ガス検出装置 |
JP2011150513A (ja) * | 2010-01-21 | 2011-08-04 | Hochiki Corp | 感知器 |
JP2020123300A (ja) * | 2019-01-31 | 2020-08-13 | 新コスモス電機株式会社 | 検知器 |
CN110085003A (zh) * | 2019-04-25 | 2019-08-02 | 常州机电职业技术学院 | 一种埋地燃气管道监控预警方法 |
CN113380006B (zh) * | 2021-06-08 | 2022-01-11 | 江苏威尔安智能科技有限公司 | 一种基于物联网传输功能的智能气体报警器 |
CN113406276A (zh) * | 2021-06-10 | 2021-09-17 | 本溪市聚鑫达机械制造有限公司 | 用于炼铁生产的安全防护自动检测设备 |
CN114542988B (zh) * | 2022-02-24 | 2023-05-23 | 成都秦川物联网科技股份有限公司 | 基于物联网的天然气管网泄漏远程报警系统 |
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