WO2020061779A1 - 一种手持式应急呼吸防护罐 - Google Patents

一种手持式应急呼吸防护罐 Download PDF

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Publication number
WO2020061779A1
WO2020061779A1 PCT/CN2018/107428 CN2018107428W WO2020061779A1 WO 2020061779 A1 WO2020061779 A1 WO 2020061779A1 CN 2018107428 W CN2018107428 W CN 2018107428W WO 2020061779 A1 WO2020061779 A1 WO 2020061779A1
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Prior art keywords
breathing
cavity
hand
compressed air
held
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Application number
PCT/CN2018/107428
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English (en)
French (fr)
Inventor
覃鹏
李永助
李凌锋
Original Assignee
傲基科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 傲基科技股份有限公司 filed Critical 傲基科技股份有限公司
Priority to PCT/CN2018/107428 priority Critical patent/WO2020061779A1/zh
Priority to CN201821597158.1U priority patent/CN209154919U/zh
Priority to CN201811145132.8A priority patent/CN108853826B/zh
Publication of WO2020061779A1 publication Critical patent/WO2020061779A1/zh

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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/02—Respiratory apparatus with compressed oxygen or air
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/02—Valves

Definitions

  • the invention relates to the technical field of emergency devices, in particular to a handheld emergency breathing protection tank.
  • the application provides a hand-held emergency breathing protection tank for emergency use in crisis scenarios such as fire and toxic gas leakage.
  • the hand-held emergency breathing protection tank can not only avoid inhaling toxic fumes or gases, but also provide safe and reliable clean compression Air helps people escape dangerous situations safely.
  • an embodiment provides a hand-held emergency respiratory protection tank, comprising: a mask portion, a hand-held portion, and a bottom cover;
  • the mask portion includes a breathing cavity and a circulation cavity provided at a lower portion of the breathing cavity, wherein The circulation cavity is in communication with the breathing cavity;
  • the hand-held portion is sleeved on the outside of the circulation cavity and connected with the mask portion, the shell of the hand-held portion is rotatable, and the bottom of the hand-held portion is detachably connected with the bottom cover;
  • the hand-held part is provided with a replaceable compressed air tank storing oxygen, and a rotary valve is arranged at the upper mouth of the compressed air tank, and the rotary valve is connected with the shell of the hand-held part.
  • the casing rotates and rotates and opens, so that the compressed air tank communicates with the circulation cavity;
  • the mask portion further includes a ventilation portion, and a check valve is provided at the communication portion of the ventilation portion and the breathing cavity, and the ventilation portion is also provided with ventilation Hole, the check valve opens unidirectionally in the direction of the vent hole.
  • an air cap is further provided in the flow chamber at the mouth of the compressed air tank and above the rotary valve, and the inner wall of the flow chamber is further provided with a thimble, and the thimble is connected with the air cap for pressure Tighten the air cap.
  • the shape of the housing of the hand-held portion includes a cylindrical shape or a square shape.
  • the outer wall of the housing of the hand-held portion is provided with a non-slip pattern or a hand-shaped groove for easy grip.
  • the outer wall of the housing of the hand-held portion is provided with a fluorescent band.
  • the bottom of the handheld portion is threadedly connected to the bottom cover.
  • the bottom cover is provided with an LED light ring and a light switch.
  • the mask portion is further provided with a head fixing strap.
  • an embodiment provides a hand-held emergency respiratory protection tank including a mask portion, a hand-held portion, and a bottom cover;
  • the mask portion includes a breathing cavity and a circulation cavity provided at a lower portion of the breathing cavity, and the circulation The cavity is in communication with the breathing cavity;
  • the hand-held portion is sleeved on the outside of the circulation cavity and is detachably connected to the mask portion;
  • the handheld part is provided with a replaceable compressed air tank storing oxygen, and the compressed air tank communicates with the circulation chamber through a retractable oxygen pipe, and an oxygen valve is provided on the outer wall of the circulation chamber.
  • the oxygen in the compressed air tank flows into the breathing chamber through the oxygen tube;
  • the mask part further includes a ventilation part, a check valve is provided at the communication part of the ventilation part and the breathing chamber, and a ventilation hole is also provided in the ventilation part.
  • the check valve opens in one direction in the direction of the vent.
  • the mask portion is further provided with a head fixing strap.
  • the hand-held emergency breathing protective tank of the present application is provided with a replaceable compressed air tank storing oxygen in the hand-held part, the user can provide oxygen required for breathing after the rotary valve is opened, and A one-way check valve is set on the mask part to prevent the user from inhaling toxic fumes or gases; the oxygen stored in the compressed air tank can help users to escape from the dangerous scene safely. Because the bottom of the handheld part is detachably connected to the bottom cover, The easy-to-replace compressed air tank makes the handheld emergency respirator tank reusable.
  • FIG. 1 is a schematic perspective view of a handheld emergency breathing protection tank according to an embodiment
  • FIG. 2 is a sectional view of a handheld emergency breathing protection tank according to an embodiment
  • FIG. 3 is a schematic view of opening a handheld emergency breathing protection tank according to an embodiment
  • FIG. 4 is a schematic diagram of oxygen flow after the handheld emergency breathing protection tank is opened according to an embodiment
  • FIG. 5 is a schematic diagram of a check valve of a handheld emergency breathing protection tank according to an embodiment
  • FIG. 6 is a schematic view of the working state of a check valve of a handheld emergency breathing protection tank according to an embodiment
  • FIG. 7 is a schematic diagram of replacing a compressed air tank of a handheld emergency breathing protection tank according to an embodiment.
  • connection and “connection” in this application include direct and indirect connections (connections) unless otherwise specified.
  • the present application provides a hand-held emergency breathing protection tank, which includes a mask part 1, a hand-held part 2, and a bottom cover 3.
  • the mask portion 1 includes a breathing cavity 10 and a flow cavity 18 provided at a lower portion of the breathing cavity 10.
  • the flow cavity 18 is in communication with the breathing cavity 10.
  • the handheld part 2 is sleeved on the outside of the circulation cavity 18 and is connected to the mask part 1.
  • the housing 21 of the handheld part is rotatable, and the bottom of the handheld part 2 is detachably connected to the bottom cover 3.
  • a replaceable compressed air tank 20 storing oxygen is provided in the hand-held part 2.
  • a rotary valve 22 is provided at the upper mouth of the compressed air tank 20. The rotary valve 22 is connected to the hand-held part housing 21 and rotates the valve. 22 can be rotated and opened as the hand part housing 21 is rotated. As shown in FIG. 3 and FIG.
  • the mask portion 1 further includes: a breathable portion 11, a check valve 12 is provided at a position where the breathable portion 11 communicates with the breathing cavity, and a breather hole 14 is also provided at the breathable portion 11, as shown in FIGS.
  • the check valve 12 is only It can be opened unidirectionally toward the vent hole 14 so that while exhaling the user's breath out of the breathing chamber 10, it can also prevent outside air from entering the breathing chamber 10, which can be avoided in crisis scenarios such as fires and toxic gas leakage.
  • the user inhales toxic fumes or gases.
  • the hand-held emergency breathing protection tank of the present application is provided with a replaceable compressed air tank 20 storing oxygen in the hand-held part 2, after the rotary valve 22 is opened, the user can provide the breathing required Oxygen, and a one-way check valve 12 is provided in the mask part 1 to prevent the user from inhaling toxic fumes or gases; the oxygen stored in the compressed air tank 20 can help the user to escape from the danger site safely.
  • the bottom cover 3 is detachably connected, and the compressed air tank 20 can be easily replaced, so that the handheld emergency breathing protection tank can be reused.
  • an air cap 23 is further provided in the flow chamber 18 above the mouth of the compressed air tank 20 and above the rotary valve 22.
  • the inner wall of the flow chamber 18 is further provided with a thimble 13.
  • the thimble 13 is connected to the air cap 23. Compressing the air cap 23 can ensure that the oxygen in the compressed air tank 20 flows upward only when the rotary valve 22 is opened, which has a sealing effect and prevents oxygen leakage.
  • the shape of the housing 21 of the handheld portion includes, but is not limited to, a cylindrical shape and a square shape, and also includes other shapes that are convenient to rotate and hold.
  • the outer wall of the housing 21 of the hand-held portion is provided with a non-slip pattern or a hand-shaped groove for easy grip.
  • a fluorescent band 24 is provided on the outer wall of the housing 21 of the handheld portion, which can indicate the position of the handheld emergency respiratory protection tank to the user in the case of insufficient light.
  • the bottom of the hand-held portion 2 is threadedly connected to the bottom cover 3, and the bottom cover 3 can be unscrewed to replace the compressed air tank 20.
  • the bottom cover 3 is provided with an LED light ring 31 and a light switch 32, and the light switch 32 is turned on.
  • the LED light ring 31 can provide ground lighting for the user, which is convenient to use Those who choose a way to escape.
  • the mask portion 1 is further provided with a head fixing strap (not shown) for fixing the mask portion 1 to the head to facilitate breathing.
  • the present application also provides another hand-held emergency breathing protection tank, which includes a mask part 1, a hand-held part 2, and a bottom cover 3.
  • the mask portion 1 includes a breathing cavity 10 and a circulation cavity 18 provided at a lower portion of the breathing cavity 10, and the circulation cavity 18 communicates with the breathing cavity 10; the hand-held portion 2 is sleeved outside the circulation cavity 18 and is detachably connected to the mask portion 1.
  • a replaceable compressed air tank 20 storing oxygen is provided in the hand-held part 2.
  • the compressed air tank 20 is communicated with the circulation chamber 18 through a retractable oxygen pipe (not shown), and an oxygen valve ( (Not shown), opening the oxygen valve can cause the oxygen in the compressed air tank 20 to flow into the breathing chamber 10 through the oxygen tube.
  • the hand-held emergency breathing protective tank of this embodiment can not only be used as a whole in the first embodiment, but also can be detached and separated from the hand-held part 2 and the mask part 1. use.
  • the retractable oxygen tube is stored in the circulation chamber 18 as an oxygen circulation channel.
  • the retractable oxygen tube not only serves as a connecting line between the hand-held portion 2 and the mask portion 1 but also As an oxygen circulation pipe. It can be seen that the handheld emergency breathing protection tank of this embodiment is convenient to use and can be recycled, and can be used as outdoor equipment and as a temporary oxygen tank.
  • the mask portion 1 may further be provided with a head fixing strap, which can be used not only to fix the mask portion 1 on the head to facilitate breathing, but also to release both hands.
  • a head fixing strap which can be used not only to fix the mask portion 1 on the head to facilitate breathing, but also to release both hands.
  • the handheld unit 2 provided with the compressed air tank 20 can be placed in a backpack and both hands can be released.

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Medicine (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

一种手持式应急呼吸防护罐，包括：面罩部（1）、手持部（2）和底盖（3）；面罩部（1）包括呼吸腔（10）和设置于呼吸腔（10）下部的流通腔（18），流通腔（18）与呼吸腔（10）相连通；手持部（2）套设于流通腔（18）外侧，手持部（2）的底部与底盖（3）可拆卸连接；手持部（2）内设置有可更换的、存储有氧气的压缩空气罐（20），压缩空气罐（20）的罐口设置有旋转阀门（22），旋转阀门（22）与手持部（2）外壳相连接，旋转阀门（22）可随手持部（2）外壳旋转而旋转并开启，使得压缩空气罐（20）与流通腔（18）相连通；面罩部（1）还包括透气部（11），所述透气部（11）与呼吸腔（10）相连通处设置有单向开启的止回阀门（12）。在火灾、有毒气体泄漏等危机场景供人应急使用，该手持式应急呼吸防护罐不仅可避免吸入有毒烟雾或气体，还可提供安全可靠的清洁压缩空气，帮助人们安全逃离危险场景。

Description

一种手持式应急呼吸防护罐 技术领域
本发明涉及应急装置技术领域，具体涉及一种手持式应急呼吸防护罐。
背景技术
火灾或有毒化学品泄漏发生时，面临最大的伤害是呼吸不畅和有毒烟雾或气体的侵害，现有消防用的个人防护器材往往会设置面罩和用于过滤有毒气体的过滤网，用于对人员的呼吸器官提供防护；但这样的做法并不足够，危险发生时，逃生的人们仍面临呼吸不畅的困难，特别火势较大或有毒烟雾较浓时，易出现缺氧的现象。
发明内容
本申请提供一种手持式应急呼吸防护罐，在火灾、有毒气体泄漏等危机场景供人应急使用，该手持式应急呼吸防护罐不仅可避免吸入有毒烟雾或气体，还可提供安全可靠的清洁压缩空气，帮助人们安全逃离危险场景。
根据第一方面，一种实施例中提供一种手持式应急呼吸防护罐，包括：面罩部、手持部和底盖；所述面罩部包括呼吸腔和设置于呼吸腔下部的流通腔，所述流通腔与呼吸腔相连通；所述手持部套设于流通腔外侧、与所述面罩部相连接，所述手持部的外壳可旋转，所述手持部的底部与底盖可拆卸连接；所述手持部内设置有可更换的、存储有氧气的压缩空气罐，所述压缩空气罐上部的罐口设置有旋转阀门，所述旋转阀门与手持部外壳相连接，所述旋转阀门可随手持部外壳旋转而旋转并开启，使得所述压缩空气罐与流通腔相连通；所述面罩部还包括透气部，所述透气部与呼吸腔相连通处设置有止回阀门，透气部还设置有透气孔，所述止回阀门朝透气孔方向单向开启。
在一些实施例，所述流通腔内，位于压缩空气罐的罐口、旋转阀门上方还设置有气盖，所述流通腔内壁还设置有顶针，所述顶针与气盖相连接，用于压紧气盖。
在一些实施例，所述手持部的外壳形状包括圆柱型或方型。
在一些实施例，所述手持部的外壳外壁设置有便于握持的防滑纹或手形凹槽。
在一些实施例，所述手持部的外壳外壁设置有荧光带。
在一些实施例，所述手持部的底部与底盖螺纹连接。
在一些实施例，所述底盖设置有LED灯圈和灯开关。
在一些实施例，所述面罩部还设置有头部固定带。
根据第二方面，一种实施例中提供一种手持式应急呼吸防护罐包括：面罩部、手持部和底盖；所述面罩部包括呼吸腔和设置于呼吸腔下部的流通腔，所述流通腔与呼吸腔相连通；所述手持部套设于流通腔外侧、与所述面罩部可拆卸连接；
所述手持部内设置有可更换的、存储有氧气的压缩空气罐，所述压缩空气罐通过可伸缩的氧气管与流通腔相连通，所述流通腔外壁设置有氧气阀，开启氧气阀，可使得压缩空气罐内氧气经氧气管流动至呼吸腔内；所述面罩部还包括透气部，所述透气部与呼吸腔相连通处设置有止回阀门，透气部还设置有透气孔，所述止回阀门朝透气孔方向单向开启。
在一些实施例，所述面罩部还设置有头部固定带。
依据上述实施例，由于本申请的手持式应急呼吸防护罐在手持部内设置了可更换的、存储有氧气的压缩空气罐，在开启旋转阀门后就可为使用者提供呼吸所需的氧气，并在面罩部设置了单向开启的止回阀门，避免使用者吸入有毒烟雾或气体；压缩空气罐存储的氧气可帮助使用者安全逃离危险现场，由于手持部的底部与底盖可拆卸连接，可方便更换的压缩空气罐，使得手持式应急呼吸防护罐可重复使用。
附图说明
图1为一种实施例的手持式应急呼吸防护罐立体示意图；
图2为一种实施例的手持式应急呼吸防护罐剖面图；
图3为一种实施例的手持式应急呼吸防护罐开启示意图；
图4为一种实施例的手持式应急呼吸防护罐开启后氧气流通示意图；
图5为一种实施例的手持式应急呼吸防护罐的止回阀门原理示意图；
图6为一种实施例的手持式应急呼吸防护罐的止回阀门工作状态示意图；
图7为一种实施例的手持式应急呼吸防护罐的更换压缩空气罐示意图。
具体实施方式
下面通过具体实施方式结合附图对本发明作进一步详细说明。其中不同实施方式中类似元件采用了相关联的类似的元件标号。在以下的实施方式中，很多细节描述是为了使得本申请能被更好的理解。然而，本领域技术人员可以毫不费力的认识到，其中部分特征在不同情况下是可以省略的，或者可以由其他 元件、材料、方法所替代。在某些情况下，本申请相关的一些操作并没有在说明书中显示或者描述，这是为了避免本申请的核心部分被过多的描述所淹没，而对于本领域技术人员而言，详细描述这些相关操作并不是必要的，他们根据说明书中的描述以及本领域的一般技术知识即可完整了解相关操作。
另外，说明书中所描述的特点、操作或者特征可以以任意适当的方式结合形成各种实施方式。同时，方法描述中的各步骤或者动作也可以按照本领域技术人员所能显而易见的方式进行顺序调换或调整。因此，说明书和附图中的各种顺序只是为了清楚描述某一个实施例，并不意味着是必须的顺序，除非另有说明其中某个顺序是必须遵循的。
本文中为部件所编序号本身，例如“第一”、“第二”等，仅用于区分所描述的对象，不具有任何顺序或技术含义。而本申请所说“连接”、“联接”，如无特别说明，均包括直接和间接连接(联接)。
实施例一：
请参考图1至图6，本申请提供一种手持式应急呼吸防护罐，包括：面罩部1、手持部2和底盖3。
面罩部1包括呼吸腔10和设置于呼吸腔10下部的流通腔18，流通腔18与呼吸腔10相连通。手持部2套设于流通腔18外侧、与面罩部1相连接，手持部的外壳21可旋转，手持部2的底部与底盖3可拆卸连接。手持部2内设置有可更换的、存储有氧气的压缩空气罐20，所述压缩空气罐20上部的罐口设置有旋转阀门22，所述旋转阀门22与手持部外壳21相连接，旋转阀门22可随手持部外壳21旋转而旋转并开启。如图3和图4所示，旋转手持部外壳21开启旋转阀门22后，可使得压缩空气罐20与流通腔18相连通，又由于流通腔18与呼吸腔10相连通，压缩空气罐20内氧气由罐口向上流动至呼吸腔10内，以供使用者呼吸。面罩部1还包括：透气部11，透气部11与呼吸腔相连通处设置有止回阀门12，透气部11还设置有透气孔14，如图5和图6所示，止回阀门12仅可朝透气孔14方向单向开启，从而实现在将使用者呼出气体排出呼吸腔10的同时，还可阻止外部的气体进入呼吸腔10内，可在火灾发生、有毒气体泄漏等危机场景，避免使用者吸入有毒烟雾或气体。
由此可见，由于本申请的手持式应急呼吸防护罐在手持部2内设置了可更换的、存储有氧气的压缩空气罐20，在开启旋转阀门22后就可为使用者提供呼吸所需的氧气，并在面罩部1设置了单向开启的止回阀门12，避免使用者吸入有毒烟雾或气体；压缩空气罐20存储的氧气可帮助使用者安全逃离危险现场，由于手持部2的底部与底盖3可拆卸连接，可方便更换的压缩空气罐20，使得 手持式应急呼吸防护罐可重复使用。
在一些实施例，流通腔18内，位于压缩空气罐20的罐口、旋转阀门22上方还设置有气盖23，流通腔18内壁还设置有顶针13，顶针13与气盖23相连接，用于压紧气盖23，可保证仅在旋转阀门22开启的情况下，压缩空气罐20内氧气才向上流动，起到密封的效果，防止出现氧气泄露。
在一些实施例，手持部的外壳21形状包括但不限于圆柱型、方型，还包括其他便于旋转和握持形状。
在一些实施例，手持部的外壳21外壁设置有便于握持的防滑纹或手形凹槽。
在一些实施例，手持部的外壳21外壁设置有荧光带24，可在光照不足的情况下，为使用者指示手持式应急呼吸防护罐的位置。
如图7所示，在一些实施例，手持部2的底部与底盖3螺纹连接，可拧开底盖3更换压缩空气罐20。
在一些实施例，底盖3设置有LED灯圈31和灯开关32，开启灯开关32，使用者在使用手持式应急呼吸防护罐时，LED灯圈31可为使用者提供地面照明，便于使用者择路逃生。
在一些实施例，面罩部1还设置有头部固定带(未示出)，用于将面罩部1固定在头部便于呼吸。
实施例二：
本申请还提供另一种手持式应急呼吸防护罐，包括：面罩部1、手持部2和底盖3。面罩部1包括呼吸腔10和设置于呼吸腔10下部的流通腔18，流通腔18与呼吸腔10相连通；手持部2套设于流通腔18外侧、与面罩部1可拆卸连接。手持部2内设置有可更换的、存储有氧气的压缩空气罐20，压缩空气罐20通过可伸缩的氧气管(未示出)与流通腔18相连通，流通腔18外壁设置有氧气阀(未示出)，开启氧气阀，可使得压缩空气罐20内氧气经氧气管流动至呼吸腔10内。
与实施例一不同之处在于，本实施例的手持式应急呼吸防护罐不仅可如实施例一一般，用手部握持整体使用，还可将手持部2与面罩部1拆卸开、分体使用。其中，在整体使用时，可伸缩的氧气管作为作为氧气流通管道收纳于流通腔18内，在分体使用时，该可伸缩的氧气管不仅作为手持部2与面罩部1的连接线，还作为氧气流通管道。由此可见，本实施例的手持式应急呼吸防护罐使用便捷、能循环使用，可作为户外设备，作为临时氧气罐使用。
在一些实施例，面罩部1还可设置头部固定带，不仅可用于将面罩部1固定在头部便于呼吸，还可释放双手。特别是，在户外分体使用时，可将设置有 压缩空气罐20的手持部2放置于背包中，释放双手。
以上应用了具体个例对本发明进行阐述，只是用于帮助理解本发明，并不用以限制本发明。对于本发明所属技术领域的技术人员，依据本发明的思想，还可以做出若干简单推演、变形或替换。

Claims (10)

  1. 一种手持式应急呼吸防护罐，其特征在于，包括：面罩部、手持部和底盖；所述面罩部包括呼吸腔和设置于呼吸腔下部的流通腔，所述流通腔与呼吸腔相连通；所述手持部套设于流通腔外侧、与所述面罩部相连接，所述手持部的外壳可旋转，所述手持部的底部与底盖可拆卸连接；所述手持部内设置有可更换的、存储有氧气的压缩空气罐，所述压缩空气罐上部的罐口设置有旋转阀门，所述旋转阀门与手持部外壳相连接，所述旋转阀门可随手持部外壳旋转而旋转并开启，使得所述压缩空气罐与流通腔相连通；所述面罩部还包括透气部，所述透气部与呼吸腔相连通处设置有止回阀门，透气部还设置有透气孔，所述止回阀门朝透气孔方向单向开启。
  2. 如权利要求1所述的应急呼吸防护罐，其特征在于，所述流通腔内，位于压缩空气罐的罐口、旋转阀门上方还设置有气盖，所述流通腔内壁还设置有顶针，所述顶针与气盖相连接，用于压紧气盖。
  3. 如权利要求1所述的应急呼吸防护罐，其特征在于，所述手持部的外壳形状包括圆柱型或方型。
  4. 如权利要求1所述的应急呼吸防护罐，其特征在于，所述手持部的外壳外壁设置有便于握持的防滑纹或手形凹槽。
  5. 如权利要求1所述的应急呼吸防护罐，其特征在于，所述手持部的外壳外壁设置有荧光带。
  6. 如权利要求1所述的应急呼吸防护罐，其特征在于，所述手持部的底部与底盖螺纹连接。
  7. 如权利要求1所述的应急呼吸防护罐，其特征在于，所述底盖设置有LED灯圈和灯开关。
  8. 如权利要求1所述的应急呼吸防护罐，其特征在于，所述面罩部还设置有头部固定带。
  9. 一种手持式应急呼吸防护罐，其特征在于，包括：面罩部、手持部和底盖；所述面罩部包括呼吸腔和设置于呼吸腔下部的流通腔，所述流通腔与呼吸腔相连通；所述手持部套设于流通腔外侧、与所述面罩部可拆卸连接；
    所述手持部内设置有可更换的、存储有氧气的压缩空气罐，所述压缩空气罐通过可伸缩的氧气管与流通腔相连通，所述流通腔外壁设置有氧气阀，开启氧气阀，可使得压缩空气罐内氧气经氧气管流动至呼吸腔内；所述面罩部还包括透气部，所述透气部与呼吸腔相连通处设置有止回阀门，透气部还设置有透气孔，所述止回阀门朝透气孔方向单向开启。
  10. 如权利要求1所述的应急呼吸防护罐，其特征在于，所述面罩部还设置有头部固定带。
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WO2020061779A1 (zh) * 2018-09-25 2020-04-02 傲基科技股份有限公司 一种手持式应急呼吸防护罐
CN113713226B (zh) * 2021-09-07 2024-07-30 杨亚敏 一种便携式智能供氧构造

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