CN104019277B - 一种机载氧气系统氧气释放指示器 - Google Patents

一种机载氧气系统氧气释放指示器 Download PDF

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Publication number
CN104019277B
CN104019277B CN201410189246.8A CN201410189246A CN104019277B CN 104019277 B CN104019277 B CN 104019277B CN 201410189246 A CN201410189246 A CN 201410189246A CN 104019277 B CN104019277 B CN 104019277B
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hole
housing
oxygen
ring
installing hole
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CN104019277A (zh
Inventor
夏艳
方玲
彭光梅
赵宏韬
李春睦
郑玉田
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Hefei Jianghang Aircraft Equipment Co Ltd
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Hefei Jianghang Aircraft Equipment Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0008—Mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
    • F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
    • F16K17/162—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs of the non reverse-buckling-type

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

本发明属于机载供氧技术，涉及一种机载氧气系统氧气释放指示器。其特征在于：它由壳体(1)、彩色塑料膜片(2)和挡圈(3)构成。本发明提供了一种结构简单、体积小、重量轻、工作稳定可靠的机载氧气系统氧气释放指示器；使飞行员能够用肉眼观察到是否进行了放气动作。

Description

一种机载氧气系统氧气释放指示器
技术领域
本发明属于机载供氧技术，涉及一种机载氧气系统氧气释放指示器。
背景技术
当机载氧气系统内的压力超压时，需要将压力进行释放。目前机载氧气系统的氧气释放采用的是安全活门，当氧气系统内的压力达到安全活门打开压力时自动进行氧气的释放。其缺点是：不能用肉眼观察到是否进行了放气动作，使飞行员难以确认机载氧气系统内的压力是否处于正常范围内。
发明内容
本发明的目的是：提供一种结构简单、体积小、重量轻、工作稳定可靠的机载氧气系统氧气释放指示器，以便使飞行员能够用肉眼观察到是否进行了放气动作。
本发明的技术方案是：一种机载氧气系统氧气释放指示器，其特征在于：它由壳体1、彩色塑料膜片2和挡圈3构成；壳体1上带有安装法兰1b，在壳体1的上表面有一个圆形凸台1a，在壳体1的下表面有带外螺纹的接嘴1c，壳体1的贯通内孔为两级台阶孔，该两级台阶孔的孔径从上到下依次减小，最上面直径最大的孔是安装孔1d，在安装孔1d的内圆柱面上有环形的挡圈安装槽，邻接安装孔1d的是蓄压孔1e，最下面直径最小的孔是接嘴内孔1f，彩色塑料膜片2安装在安装孔1d内，彩色塑料膜片2的下表面与安装孔1d和蓄压孔1e之间的台阶端面贴合，挡圈3安装在挡圈安装槽内压住彩色塑料膜片2上表面的边缘。
本发明的优点是：提供了一种结构简单、体积小、重量轻、工作稳定可靠的机载氧气系统氧气释放指示器；使飞行员能够用肉眼观察到是否进行了放氧动作。
附图说明
图1是本发明的结构示意图。
具体实施方式
下面对本发明做进一步详细说明。参见图1，一种机载氧气系统氧气释放指示器，其特征在于：它由壳体1、彩色塑料膜片2和挡圈3构成；壳体1上带有安装法兰1b，在壳体1的上表面有一个圆形凸台1a，在壳体1的下表面有带外螺纹的接嘴1c，壳体1的贯通内孔为两级台阶孔，该两级台阶孔的孔径从上到下依次减小，最上面直径最大的孔是安装孔1d，在安装孔1d的内圆柱面上有环形的挡圈安装槽，邻接安装孔1d的是蓄压孔1e，最下面直径最小的孔是接嘴内孔1f，彩色塑料膜片2安装在安装孔1d内，彩色塑料膜片2的下表面与安装孔1d和蓄压孔1e之间的台阶端面贴合，挡圈3安装在挡圈安装槽内压住彩色塑料膜片2上表面的边缘。
所说的彩色塑料膜片2的厚度为0.4mm～0.7mm。
本发明的工作原理是：机载氧气系统氧气释放指示器的安装法兰1b固定在飞机蒙皮上，指示器的接嘴1c通过管路与安全活门的出气口连通。当安全活门释放压力时，气体通过接嘴内孔1f进入蓄压孔1e，若输入气体压力大于彩色膜片2最大承受力时，彩色膜片2发生爆破，气路导通，实现氧气的释放，同时彩色膜片脱离壳体1，使飞行员能直观地看到氧气释放动作。
本发明的一个实施例，所说的彩色塑料膜片2的厚度为0.6mm，当输入气体压力不小于0.7MPa时，彩色膜片2发生爆破。

Claims (2)

1.一种机载氧气系统氧气释放指示器，其特征在于：它由壳体(1)、彩色塑料膜片(2)和挡圈(3)构成；壳体(1)上带有安装法兰(1b)，在壳体(1)的上表面有一个圆形凸台(1a)，在壳体(1)的下表面有带外螺纹的接嘴(1c)，壳体(1)的贯通内孔为两级台阶孔，该两级台阶孔的孔径从上到下依次减小，最上面直径最大的孔是安装孔(1d)，在安装孔(1d)的内圆柱面上有环形的挡圈安装槽，邻接安装孔(1d)的是蓄压孔(1e)，最下面直径最小的孔是接嘴内孔(1f)，彩色塑料膜片(2)安装在安装孔(1d)内，彩色塑料膜片(2)的下表面与安装孔(1d)和蓄压孔(1e)之间的台阶端面贴合，挡圈(3)安装在挡圈安装槽内压住彩色塑料膜片(2)上表面的边缘。
2.根据权利要求1所述的机载氧气系统氧气释放指示器，其特征在于：所说的彩色塑料膜片(2)的厚度为0.4mm～0.7mm。
CN201410189246.8A 2014-05-07 2014-05-07 一种机载氧气系统氧气释放指示器 Active CN104019277B (zh)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109707944B (zh) * 2018-11-12 2022-09-09 中航通飞研究院有限公司 一种飞机高压流体释放与指示接头
CN112524307A (zh) * 2020-11-30 2021-03-19 合肥江航飞机装备股份有限公司 一种防进水放氧指示器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111930A (en) * 1960-04-04 1963-11-26 Walter J Zipper Tire pressure indicator
US3241514A (en) * 1964-10-12 1966-03-22 Geotechnical Corp Pneumatic pressure indicator
GB1178200A (en) * 1968-07-08 1970-01-21 Gardner Denver Co Fluid Actuated Visual Indicator
GB1261048A (en) * 1968-03-26 1972-01-19 Jouvenel & Cordier S A Fluid pressure-indicating device
CN103185171A (zh) * 2011-12-30 2013-07-03 泰思康公司 用于可视化指示从安全阀泄漏的装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111930A (en) * 1960-04-04 1963-11-26 Walter J Zipper Tire pressure indicator
US3241514A (en) * 1964-10-12 1966-03-22 Geotechnical Corp Pneumatic pressure indicator
GB1261048A (en) * 1968-03-26 1972-01-19 Jouvenel & Cordier S A Fluid pressure-indicating device
GB1178200A (en) * 1968-07-08 1970-01-21 Gardner Denver Co Fluid Actuated Visual Indicator
CN103185171A (zh) * 2011-12-30 2013-07-03 泰思康公司 用于可视化指示从安全阀泄漏的装置

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Address after: 230051 No. 35 Yan'an Road, Baohe Industrial Zone, Hefei City, Anhui Province

Patentee after: Hefei Jianghang Aircraft Equipment Co., Ltd.

Address before: 230051 Anhui Province, Hefei City Industrial Park Yanan Baohe Road No. 35

Patentee before: Hefei Jianghang Aircraft Equipment Co., Ltd.