WO2019071845A1 - 一种便携空气净化呼吸器 - Google Patents

一种便携空气净化呼吸器 Download PDF

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Publication number
WO2019071845A1
WO2019071845A1 PCT/CN2017/118982 CN2017118982W WO2019071845A1 WO 2019071845 A1 WO2019071845 A1 WO 2019071845A1 CN 2017118982 W CN2017118982 W CN 2017118982W WO 2019071845 A1 WO2019071845 A1 WO 2019071845A1
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Prior art keywords
nostril
air
intake
tube
access tube
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PCT/CN2017/118982
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English (en)
French (fr)
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李晓忠
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李晓忠
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Publication of WO2019071845A1 publication Critical patent/WO2019071845A1/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
    • A62B7/10—Respiratory apparatus with filter elements
    • 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

Definitions

  • the utility model relates to the technical field of a respiratory purifier, in particular to a portable air purifying respirator.
  • the prior art provides an air purifying device that is easy to carry, but due to the unreasonable design of the existing device, the use effect at the time of design cannot be achieved.
  • a portable air purifying respirator of the present invention comprises a hose and an air purifying unit and a suction end unit connected through a hose;
  • the suction end unit comprises a nostril inlet pipe, an intake pipe and an exhaust pipe;
  • an intake pipe and The exhaust pipe is respectively connected with the nostril inlet pipe, and the other end of the intake pipe is connected with the hose; and
  • the gas inlet check valve is disposed on the intake pipe or the exhaust pipe.
  • the nostril access tube includes a left nostril access tube and a right nostril access tube, and the left nostril access tube and the right nostril access tube communicate to form a U-shaped tube.
  • the nostril access tube includes a left nostril access tube and a right nostril access tube
  • the intake tube includes a left nostril intake tube and a right nostril intake tube
  • the exhaust tube includes a left nostril exhaust tube and The right nostril exhaust pipe
  • the left nostril intake pipe and the left nostril exhaust pipe are respectively connected with the left nostril intake pipe
  • the right nostril intake pipe and the right nostril exhaust pipe are respectively connected with the right nostril intake pipe.
  • the gas check valve includes an intake check valve and an exhaust check valve; the intake check valve is disposed on the intake pipe, and the exhaust check valve is disposed in the row On the trachea.
  • the end of the nostril access tube is provided with a positioning nasal plug or a nose clip; the material of the positioning nasal plug is a flexible material.
  • the size of the positioning nasal plug is adapted to the size of the user's nostrils to prevent air leakage.
  • the air purifying unit comprises a gas pump matched with a primary air purifier and a primary air purifier; the primary air purifier is provided with a detachable filter membrane or a filter cartridge;
  • the air pump is adapted to the mobile power source, and the air pump and the control unit are adapted via a circuit connection.
  • the mobile power source is a battery.
  • the air purifying unit further includes a storage air bag; one end of the air bag is communicated with the suction end unit through a hose, and the other end of the air bag is connected with the air pump; between the air bag and the air pump A secondary intake check valve is provided.
  • At least one secondary air purifier is disposed between the air reservoir and the air pump; the adjacent secondary air purifiers are connected in series, and the secondary air purifier is provided with Disassembled filter membrane or filter element.
  • the nostril access tube is provided with a shielding member, and the shielding member is a mask or a mask.
  • the air purifying unit is disposed in the secondary casing; the secondary casing is made of a hard material; the suction end unit is disposed in the first casing; and the first casing is made of a hard material. Material or flexible material.
  • the utility model has the following advantages.
  • the utility model has simple and reasonable structural design, and the various components cooperate with each other, the purification effect is good, the backflow is avoided and the nose can be completely penetrated, and the user can breathe clean air in an air polluted environment.
  • the utility model is provided with three types of suction end units, and the user can select different types of suction end units according to the purpose of use or the requirements of use.
  • the gas check valve of the utility model can ensure the single-line state of the gas in the pipeline and avoid backflow.
  • the nose plug is provided with a positioning nasal plug or a nose clip; the positioning nasal plug is made of a flexible material and can be closely matched with the user's nostrils, so as to avoid the prior art that the pipeline and the nose are not tightly coupled. Causes the leakage of clean air and the inhalation of polluted air.
  • the air pump of the utility model is used for extracting air in the air into the air purification unit, and the air pump cooperates with the first-stage air purifier to complete the extraction and the first filtration.
  • the primary air purifier has a detachable filter membrane or filter element; the primary air purifier or the secondary air purifier has a filter element that can be quickly disassembled and assembled, and the filter element is a filter membrane or a filter element.
  • the filter membrane is used to filter inhalable particles or odors in the air; the filter element is used to filter inhalable particles, odors or harmful gases, and different built-in filter elements can be matched according to user requirements.
  • the air purification unit further includes a storage air bag, which can be used to store the purified air after operation, thereby avoiding a slow purification rate and causing insufficient air supply. Since the secondary air intake check valve is provided between the air bag and the air pump, clean air can be prevented from being poured.
  • At least one secondary air purifier is disposed between the air bag and the air pump to further purify the air that has been initially purified.
  • the nostril access tube is provided with a shielding member, and the shielding member is a mask or a mask, which can ensure the appearance and avoid the user from smashing in public. Different decorative layers can be placed on the mask or mask.
  • the adjustment control is used to control the opening and closing, and can be used to adjust the air pump frequency according to the user or design requirements, so as to adjust the air pump for fast or slow operation as needed.
  • the air purifying unit of the utility model is arranged in the secondary casing; the material of the secondary casing is hard material; the suction end unit is arranged in the first casing; the material of the first casing is hard material or flexible material, which can be arranged easily And storage, can play a protective role, easy to use.
  • the utility model adopts an air pump to suck the air into the device, and pretreats the air entering the air purifying unit through the first-stage air purifier disposed in front of the air pump, thereby avoiding incomplete purification and accumulation of pollutants in the air in the hose passage, resulting in late stage The difficulty of cleaning up and the problem of poor performance.
  • the user can set a different number of secondary air purifiers after the air pump according to the requirements of use, and further purify the air. After the air is purified, it is stored in the air bag to ensure that clean air is supplied when the air is used, and the clean air passes through the hose. Suction unit supply.
  • FIG. 1 is a schematic structural view of a portable air purifying respirator of the present invention.
  • FIG. 2 is a schematic view of an embodiment of a portable air purifying respirator of the present invention.
  • FIG. 3 is a schematic view of another embodiment of a portable air purifying respirator of the present invention.
  • a portable air purifying respirator comprising a hose 1 and an air purifying unit and a suction end unit communicating through the hose 1;
  • the suction end unit includes a nostril access pipe 201, an intake pipe 202 and an exhaust pipe 203; an intake pipe 202 and The exhaust pipe 203 is respectively connected to the nostril inlet pipe 201, and the other end of the intake pipe 202 is in communication with the hose 1; the gas inlet check valve 204 is provided on the intake pipe 202 or the exhaust pipe 203.
  • the nostril access tube 201 is provided with a shielding member 4, and the shielding member is a mask or a mask.
  • the gas check valve 204 includes an intake check valve and an exhaust check valve; the intake check valve is disposed on the intake pipe 202, the exhaust check valve is disposed on the exhaust pipe 203; and the noodle access pipe 201 is at the end
  • the sleeve is provided with a positioning nasal plug 205; the material of the positioning nasal plug 205 is a flexible material.
  • This embodiment shows only one nostril access tube 201, which is used by the user to select one of the left or right nostrils to be used, that is, only one path is used.
  • the nostril access tube 201 includes a left nostril access tube 2011 and a right nostril access tube 2012, and the left nostril access tube 2011 and the right nostril access tube 2012 communicate to form a U-shaped tube.
  • the intake pipe 202 and the exhaust pipe 203 are respectively provided with one, and the two are respectively matched with the U-shaped pipe nostril access pipe, and the left and right nostrils are simultaneously used for access; that is, there is only one passage, the left nostril
  • the access tube 2011 and the right nostril access tube 2012 share a single path.
  • the nostril access tube 201 includes a left nostril access tube 2011 and a right nostril access tube 2012
  • the intake tube 202 includes a left nostril intake tube 2021 and a right nostril intake tube 2022
  • the exhaust tube 203 includes a left nostril The exhaust pipe 2031 and the right noodle exhaust pipe 2032
  • the left nostril intake pipe 2021 and the left noodle exhaust pipe 2031 communicate with the left nostril intake pipe 2011
  • the right noodle intake pipe 2022 and the right noodle exhaust pipe 2032 respectively enter the right nostril
  • the trachea 2012 is connected.
  • the present embodiment shows that the intake pipe 202 and the exhaust pipe 203 are respectively provided with two, and the left nostril access pipe 2011 and the right nostril access pipe 2012 respectively form two separate breathing use units, and the left and right nostrils are simultaneously connected.
  • the air purification unit includes a first stage air purifier 301 and a first stage air purifier 301.
  • the first stage air purifier 301 is provided with a detachable filter membrane 303 or a filter element.
  • the air pump 302 is adapted to the mobile power source 304, the air pump 302 and the adjustment control device 308 are adapted by a circuit connection, the mobile power source 304 is a reusable rechargeable battery or a lithium battery, and the filter membrane 303 is used to filter the air.
  • Inhalable particles or odors; filter elements are used to filter inhalable particles, odors or harmful gases, depending on the user's requirements, with different built-in filters.
  • the air purifying unit further includes a storage air bag 305.
  • One end of the air bag 305 communicates with the suction end unit through the hose 1, and the other end of the air bag 305 communicates with the air pump 302.
  • the air bag 305 and the air pump 302 are disposed between the air bag 302 and the air pump 302.
  • the secondary air intake check valve 306; a filter may also be disposed in the air reservoir 305.
  • Embodiment 5 the rest is the same as Embodiment 5.
  • Two secondary air purifiers 307 are disposed between the air bag 305 and the air pump 302. The adjacent secondary air purifiers 307 are connected in series, and the secondary air purifying is performed.
  • the 307 is provided with a detachable filter membrane 303 or a filter element.
  • the filter membrane 303 is used to filter inhalable particles or odors in the air; the filter element is used to filter inhalable particles, odors or harmful gases, and different built-in filters are matched according to user requirements.
  • the air purification unit is disposed in the secondary casing 3; the secondary casing 3 is made of a hard material; and the suction end unit is disposed in the primary casing 2;
  • the material of the first-stage outer casing 2 is a hard material or a flexible material.

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

Abstract

一种便携空气净化呼吸器，其特征在于：包括软管（1）和通过软管（1）连通的空气净化单元和吸入端单元；所述吸入端单元包括鼻孔接入管（201）、进气管（202）和排气管（203）；进气管（202）和排气管（203）分别与鼻孔接入管（201）连通，所述进气管（202）另一端与软管（1）连通；所述进气管（202）或排气管（203）上设有气体单向阀（204）。该空气净化呼吸器结构设计简单合理且净化效果佳。

Description

一种便携空气净化呼吸器 技术领域
本实用新型涉及呼吸净化器技术领域，具体涉及一种便携空气净化呼吸器。
背景技术
由于工业化进程加快，大气中的污染物增加，大气污染物对人体的危害是多方面的，主要表现是呼吸道疾病与生理机能障碍，以及眼鼻等粘膜组织受到刺激而患病，是造成老年哮喘的慢性因素，肺气不足导致体力下降。大气中污染物的浓度很高时，会造成急性污染中毒，或使病状恶化，甚至在几天内夺去几千人的生命。即使大气中污染物浓度不高，但人体成年累月呼吸这种污染了的空气，也会引起慢性支气管炎、支气管哮喘、肺气肿及肺癌等疾病。另外，很多工厂车间、施工工地、矿井等工作环境也处于粉尘颗粒严重超标情况下，给广大劳动者带来极大的健康危害。
为解决上述问题，现有技术提供了一种便于携带的空气净化装置，但由于现有装置设计不合理，不能达到设计时的使用效果。
实用新型内容
有鉴于此，有必要针对现有技术中存在的问题，提供一种便携空气净化呼吸器。
本实用新型的一种便携空气净化呼吸器，包括软管和通过软管连通的空气净化单元和吸入端单元；所述吸入端单元包括鼻孔接入管、进气管和排气管；进气管和排气管分别与鼻孔接入管连通，所述进气管另一端与软管连通；所述进气管或排气管上设有气体单向阀。
作为本实用新型的进一步改进，所述鼻孔接入管包括左鼻孔接入管和右鼻孔接入管，所述左鼻孔接入管和右鼻孔接入管连通形成U型管。
作为本实用新型的进一步改进，所述鼻孔接入管包括左鼻孔接入管和右鼻孔接入管，进气管包括左鼻孔进气管和右鼻孔进气管；排气管包括左鼻孔排气管和右鼻孔排气管；所述左鼻孔进气管和左鼻孔排气管分别与左鼻孔进气管连通；所述右鼻孔进气管和右鼻孔排气管分别与右鼻孔进气管连通。
作为本实用新型的进一步改进，所述气体单向阀包括进气单向阀和排气单向阀；所述进气单向阀设于进气管上，所述排气单向阀设于排气管上。
作为本实用新型的进一步改进，所述鼻孔接入管端部套设有定位鼻塞或鼻夹；所述定位鼻塞的材质为柔性材质。定位鼻塞的大小与使用者鼻孔大小相适应，防止漏气。
作为本实用新型的进一步改进，所述空气净化单元包括一级空气净化器与一级空气净化器相适配的气泵；所述一级空气净化器内设有可拆卸的过滤膜或滤芯；所述气泵与移动电源相适配，所述气泵和调节控制装置通过电路连接适配。所述移动电源为电池。
作为本实用新型的进一步改进，所述空气净化单元还包括储气囊；所述储气囊一端与吸入端单元通过软管连通，所述储气囊另一端与气泵连通；所述储气囊与气泵之间设有二级进气单向阀。
作为本实用新型的进一步改进，所述储气囊与气泵之间设有至少一个二级空气净化器；所述相邻的二级空气净化器串联连接，所述二级空气净化器内设有可拆卸的过滤膜或滤芯。
作为本实用新型的进一步改进，所述鼻孔接入管上设有遮挡部件，所述遮挡部件为口罩或面罩。
作为本实用新型的进一步改进，空气净化单元设于二级外壳内；所述二级外壳的材质为硬质材料；吸入端单元设于一级外壳内；所述一级外壳的材质为硬质材料或柔性材料。
本实用新型与现有技术相比，具有以下优点。
本实用新型结构设计简单合理，各个部件相互配合，净化效果佳、避免倒灌且能够完全通入鼻体，能让使用者在空气污染环境下呼吸到洁净空气。
本实用新型设置有三种形式的吸入端单元，使用者可根据其使用目的或使用要求，选择不同形式的吸入端单元。
本实用新型气体单向阀能够保证管路中气体的单行状态，避免倒灌。
由于鼻孔接入管端部套设有定位鼻塞或鼻夹；所述定位鼻塞的材质为柔性材质，能够与使用者的鼻孔紧密配合，能够避免现有技术中管路与鼻体配合不紧密，造成洁净空气的泄漏和污染空气吸入的问题。
本实用新型的气泵用于将空气中的空气抽取至空气净化单元中，气泵与一级空气净化器配合，完成抽取和第一次过滤。
由于一级空气净化器内设有可拆卸的过滤膜或滤芯；一级空气净化器或二级空气净化器内设有可快速拆卸和装配的过滤件，过滤件为过滤膜或滤芯。过滤膜用于过滤空气中可吸入性的颗粒或异味；滤芯用于过滤可吸入性的颗粒、异味或有害气体，根据使用者要求的不同配合不同的内置过滤件。
空气净化单元还包括储气囊，能够用于将净化处理后的空气存储，避免净化速度慢造成空气供给不足。由于储气囊与气泵之间设有二级进气单向阀，能够避免洁净空气倒灌。
储气囊与气泵之间设有至少一个二级空气净化器，能够进一步对已经初步净化处理的空气作进一步净化。
鼻孔接入管上设有遮挡部件，所述遮挡部件为口罩或面罩，可保证美观，避免使用者在公共场合尴尬。口罩或面罩上可设置不同的装饰层。
调节控制装置用于控制开启和关闭，并可根据使用者或设计要求用于调节气泵频率，从 而根据需要调节气泵快或慢工作状态。
本实用新型的空气净化单元设于二级外壳内；二级外壳的材质为硬质材料；吸入端单元设于一级外壳内；一级外壳的材质为硬质材料或柔性材料，能够便于整理和收纳，能够起防护作用，方便使用。
本实用新型通过气泵将空气吸入装置，通过设置在气泵前的一级空气净化器对进入空气净化单元的空气进行预处理，避免净化不完全及空气内的污染物堆积在软管通路，造成后期的清理困难和使用效果不佳的问题。使用者可根据使用要求在气泵后设置数量不同的二级空气净化器，对空气进行进一步的净化，空气净化后存储在储气囊内，保证使用时即有洁净空气提供，洁净空气经过软管通过吸入端单元供给。
附图说明
图1为本实用新型便携空气净化呼吸器的结构示意图。
图2为本实用新型便携空气净化呼吸器的一种实施方式的示意图。
图3为本实用新型便携空气净化呼吸器的另一种实施方式的示意图。
图中：1-软管，2-一级外壳，201-鼻孔接入管，2011-左鼻孔接入管，2012-右鼻孔接入管，202-进气管，2021-左鼻孔进气管，2022-右鼻孔进气管，203-排气管，2031-左鼻孔排气管，2032-右鼻孔排气管，204-气体单向阀，205-定位鼻塞，3-二级外壳，301-一级空气净化器，302-气泵，303-过滤膜，304-移动电源，305-储气囊，306-二级进气单向阀，307-二级空气净化器，308-调节控制装置，4-遮挡部件。
具体实施方式
下面结合附图和实施例对本实用新型做进一步的解释说明。
实施例1
一种便携空气净化呼吸器，包括软管1和通过软管1连通的空气净化单元和吸入端单元；吸入端单元包括鼻孔接入管201、进气管202和排气管203；进气管202和排气管203分别与鼻孔接入管201连通，进气管202另一端与软管1连通；进气管202或排气管203上设有气体单向阀204。鼻孔接入管201上设有遮挡部件4，遮挡部件为口罩或面罩。
气体单向阀204包括进气单向阀和排气单向阀；进气单向阀设于进气管202上，排气单向阀设于排气管203上；鼻孔接入管201端部套设有定位鼻塞205；定位鼻塞205的材质为柔性材质。
本实施例展示的是只有一个鼻孔接入管201，使用时由使用者选择左或右鼻孔之一接入使用的情况，即只有一条通路的情况。
实施例2
其余与实施例1一致，鼻孔接入管201包括左鼻孔接入管2011和右鼻孔接入管2012，左鼻孔接入管2011和右鼻孔接入管2012连通形成U型管。
本实施例展示的是进气管202和排气管203分别设有一个，两者分别与U型管鼻孔接入管配合，左、右鼻孔同时接入使用的情况；即只有一条通路，左鼻孔接入管2011和右鼻孔接入管2012共用一条通路的情况。
实施例3
其余与实施例1一致，鼻孔接入管201包括左鼻孔接入管2011和右鼻孔接入管2012，进气管202包括左鼻孔进气管2021和右鼻孔进气管2022；排气管203包括左鼻孔排气管2031和右鼻孔排气管2032；左鼻孔进气管2021和左鼻孔排气管2031分别与左鼻孔进气管2011连通；右鼻孔进气管2022和右鼻孔排气管2032分别与右鼻孔进气管2012连通。
本实施例展示的是进气管202和排气管203分别设有两个，左鼻孔接入管2011和右鼻孔接入管2012分别形成两个单独的呼吸使用单元，左、右鼻孔同时接入的情况；即有两条通路，左鼻孔接入管2011和右鼻孔接入管2012分别使用一条通路的情况。
实施例4
其余与实施例1-3一致，空气净化单元包括一级空气净化器301与一级空气净化器301相适配的气泵302；一级空气净化器301内设有可拆卸的过滤膜303或滤芯；所述气泵302与移动电源304相适配，所述气泵302和调节控制装置308通过电路连接适配，移动电源304为可重复使用的充电电池或锂电池，过滤膜303用于过滤空气中可吸入性的颗粒或异味；滤芯用于过滤可吸入性的颗粒、异味或有害气体，根据使用者要求的不同配合不同的内置过滤件。
实施例5
其余与实施例4一致，空气净化单元还包括储气囊305；储气囊305一端与吸入端单元通过软管1连通，储气囊305另一端与气泵302连通；储气囊305与气泵302之间设有二级进气单向阀306；储气囊305内也可设有过滤器。
实施例6
如图1-3所示，其余与实施例5一致，储气囊305与气泵302之间设有两个二级空气净化器307；相邻的二级空气净化器307串联连接，二级空气净化器307内设有可拆卸的过滤膜303或滤芯。过滤膜303用于过滤空气中可吸入性的颗粒或异味；滤芯用于过滤可吸入性的颗粒、异味或有害气体，根据使用者要求的不同配合不同的内置过滤件。
实施例7
如图1-3所示，其余与实施例1-6一致，空气净化单元设于二级外壳3内；二级外壳3 的材质为硬质材料；吸入端单元设于一级外壳2内；一级外壳2的材质为硬质材料或柔性材料。
以上所述实施例仅表达了本实用新型的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本实用新型专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本实用新型构思的前提下，还可以做出若干变形和改进，这些都属于本实用新型的保护范围。因此，本实用新型专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种便携空气净化呼吸器，其特征在于：包括软管和通过软管连通的空气净化单元和吸入端单元；所述吸入端单元包括鼻孔接入管、进气管和排气管；进气管和排气管分别与鼻孔接入管连通，所述进气管另一端与软管连通；所述进气管或排气管上设有气体单向阀。
  2. 根据权利要求1所述的便携空气净化呼吸器，其特征在于：所述鼻孔接入管包括左鼻孔接入管和右鼻孔接入管，所述左鼻孔接入管和右鼻孔接入管连通形成U型管。
  3. 根据权利要求1所述的便携空气净化呼吸器，其特征在于：所述鼻孔接入管包括左鼻孔接入管和右鼻孔接入管，进气管包括左鼻孔进气管和右鼻孔进气管；排气管包括左鼻孔排气管和右鼻孔排气管；所述左鼻孔进气管和左鼻孔排气管分别与左鼻孔进气管连通；所述右鼻孔进气管和右鼻孔排气管分别与右鼻孔进气管连通。
  4. 根据权利要求1-3任一项所述的便携空气净化呼吸器，其特征在于：所述气体单向阀包括进气单向阀和排气单向阀；所述进气单向阀设于进气管上，所述排气单向阀设于排气管上。
  5. 根据权利要求1-4任一项所述的便携空气净化呼吸器，其特征在于：所述鼻孔接入管端部套设有定位鼻塞或鼻夹；所述定位鼻塞的材质为柔性材质。
  6. 根据权利要求1-5任一项所述的便携空气净化呼吸器，其特征在于：所述空气净化单元包括一级空气净化器与一级空气净化器相适配的气泵；所述一级空气净化器内设有可拆卸的过滤膜或滤芯；所述气泵与移动电源相适配，所述气泵和调节控制装置通过电路连接适配。
  7. 根据权利要求6所述的便携空气净化呼吸器，其特征在于：所述空气净化单元还包括储气囊；所述储气囊一端与吸入端单元通过软管连通，所述储气囊另一端与气泵连通；所述储气囊与气泵之间设有二级进气单向阀。
  8. 根据权利要求7所述的便携空气净化呼吸器，其特征在于：所述储气囊与气泵之间设有至少一个二级空气净化器；所述相邻的二级空气净化器串联连接，所述二级空气净化器内设有可拆卸的过滤膜或滤芯。
  9. 根据权利要求1-8任一项所述的便携空气净化呼吸器，其特征在于：所述鼻孔接入管上设有遮挡部件，所述遮挡部件为口罩或面罩。
  10. 根据权利要求1-9任一项所述的便携空气净化呼吸器，其特征在于：空气净化单元设于二级外壳内；所述二级外壳的材质为硬质材料；吸入端单元设于一级外壳内；所述一级外壳的材质为硬质材料或柔性材料。
PCT/CN2017/118982 2017-10-10 2017-12-27 一种便携空气净化呼吸器 WO2019071845A1 (zh)

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CN203898979U (zh) * 2014-04-21 2014-10-29 闻朝 塞鼻式空气净化器
CN104826249A (zh) * 2015-04-14 2015-08-12 刘恒君 一种三位一体多功能便携式防雾霾呼吸机
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GB2255285A (en) * 1991-04-26 1992-11-04 William George Lyne Air purifier
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