WO2019232914A1 - 易排出呼出气体的防护面罩 - Google Patents

易排出呼出气体的防护面罩 Download PDF

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Publication number
WO2019232914A1
WO2019232914A1 PCT/CN2018/099127 CN2018099127W WO2019232914A1 WO 2019232914 A1 WO2019232914 A1 WO 2019232914A1 CN 2018099127 W CN2018099127 W CN 2018099127W WO 2019232914 A1 WO2019232914 A1 WO 2019232914A1
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Prior art keywords
mask
protective
chamber
filter element
mask body
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PCT/CN2018/099127
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English (en)
French (fr)
Inventor
郭顺平
王洪海
贺淑刚
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深圳市美好创亿医疗科技有限公司
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Publication of WO2019232914A1 publication Critical patent/WO2019232914A1/zh

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    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/02—Masks
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/06—Nose filters
    • 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
    • A62B9/06—Mouthpieces; Nose-clips

Definitions

  • the present invention relates to the technical field of wearable protective devices, and in particular to a protective face mask capable of easily exhaling exhaled gas.
  • the protective mask can filter the air entering the human respiratory tract. After wearing the protective mask, the user can effectively prevent the mouth or nasal cavity from inhaling harmful substances in the air, thereby reducing the threat of air pollution to human health.
  • CN205730013U discloses a mask and a purification component for the mask.
  • the mask includes a fixing frame, a filter element and a check valve. When the user inhales, the air is filtered by the filter element and flows into the inside of the mask; the exhaled air is mainly discharged to the outside of the mask through the check valve.
  • This protective mask can protect the user's breathing to a certain extent, but due to the limited area of the check valve, a large amount of exhaled air is easily accumulated in the cavity inside the mask, which makes the inside of the mask easily in a hot and humid state, reducing the protective mask. The comfort of use; and the exhaled air is easily inhaled into the human body again, affecting the breathing effect of the user.
  • a ventilating fan is installed on a protective mask, but installing a ventilating fan on a mask greatly increases the volume and weight of the mask, and also increases the cost of the mask, thus limiting the application range of the protective mask.
  • the invention provides a protective mask which is easy to discharge the exhaled gas.
  • a nasal mask By providing a nasal mask, the exhaled gas can be quickly discharged to the outside of the protective mask.
  • the object of the present invention is to provide a protective face mask capable of easily exhaling exhaled breath, comprising a face mask body and a nasal mask; the face mask body has an arched structure with an opening inward, and a first sealing ring is provided on the inner edge thereof;
  • the mask has a ring structure, one end of which is hermetically connected to the inside of the mask body, and the other end is provided with a second seal ring; when the protective mask is arranged on the user's face through a first seal ring and a second seal ring, the A first chamber covering the user's nose is formed between the mask body and the inside of the nasal mask, and a second chamber covering the user's mouth is formed between the mask body, the outside of the nasal mask, and the inside of the first seal ring;
  • the protective mask further includes a filter element, a first check valve and a second check valve.
  • the filter element is used to filter air flowing from the outside of the mask body into the inside; the first check valve is disposed in the first cavity.
  • the mask body in the room allows gas to flow from the first chamber to the outside of the protective mask; the second check valve is arranged on the ring structure of the nasal mask, allowing the gas to flow from the second chamber to the first chamber room.
  • the mask body further includes a support frame provided on the mask body, the support frame includes a first frame body and a second frame body; a card slot is provided at an edge of the first frame body, and the first The inside edge of the two frames is provided with a buckle that can be locked in the slot; after the filter element is clamped between the first frame and the second frame, the clip is set in the slot, that is, The filter element can be fixed on the support frame.
  • first frame body is provided with a check valve seat at a position facing the nose
  • filter element and the second frame body are provided with a first opening and a second opening at positions facing the one-way valve seat, respectively.
  • a one-way valve seat is opened on the one-way valve seat to form a one-way valve that allows gas to flow out from the inside of the protective mask to the outside.
  • the nasal mask further includes a mounting bracket, the mounting bracket is connected to an end of the second sealing ring directly opposite the mask body, and is used for connecting with the mounting seat.
  • the protective mask provided by the present invention is particularly suitable for the breathing mode of inhaling through the mouth and / or nasal cavity and exhaling through the nasal cavity.
  • the present invention exhales the air under the pressure of the first chamber. It can be quickly discharged from the first check valve, and will not diffuse into the second chamber, thereby effectively reducing the accumulation of exhaled gas inside the protective mask, and preventing the moisture in the exhaled gas from condensing in the filter element and affecting the filter element's filtration. The effect improves the comfort of using the protective mask.
  • FIG. 1 is a schematic structural diagram of a protective mask in a first embodiment of the present invention.
  • FIG. 2 is a schematic diagram of installing a nasal mask in a protective mask according to the first embodiment of the present invention.
  • FIG. 3 is an exploded view of a protective mask in the first embodiment of the present invention.
  • Fig. 4 is an exploded view of a nasal mask in the first embodiment of the present invention.
  • a first embodiment of the present invention provides a protective mask 1 including a mask body 11 and a nasal mask 12.
  • the mask body 11 has an arched structure with an opening facing inward, and a first edge A sealing ring 111;
  • the nasal mask 12 has a ring structure, one end of which is sealingly connected to the inside of the mask body 11, and the other end is provided with a second sealing ring 121;
  • a first chamber 101 covering the user's nose is formed between the mask body 11 and the inside of the nasal mask 12.
  • a second chamber 102 covering the user's mouth is formed between the inside of the seal ring 111; the protective mask 1 further includes a filter element 13, a first check valve 14 and a second check valve 15, which are used for Filter the air flowing from the outside of the mask body 11 into the inside; the first check valve 14 is provided on the mask body 11 located in the first chamber 101 to allow gas to flow from the first chamber 101 to the outside of the protective mask 1 ; The second one-way valve 15 is provided in the ring-shaped knot of the nasal mask 12 The gas is allowed to flow from second chamber 102 into first chamber 101.
  • the protective mask provided by the present invention is particularly suitable for a breathing mode of inhaling through the mouth and / or nasal cavity and exhaling through the nasal cavity.
  • the air is filtered by the filter element and enters the inside of the protective mask.
  • the mouth can inhale the air entering the second chamber; when inhaling through the nasal cavity, it enters the second chamber under the effect of negative breathing pressure.
  • the air can flow into the first chamber through the second check valve, and then be sucked into the user's lungs.
  • the exhaled air can be quickly discharged from the first one-way valve to the outside of the protective mask without being diffused into the second cavity.
  • the invention can expel the exhaled air from the first one-way valve quickly under the pressure of the first chamber, and will not diffuse into the second chamber, thereby effectively reducing
  • the accumulated amount of exhaled gas inside the protective mask prevents the moisture in the exhaled gas from condensing in the filter element and affects the filtering effect of the filter element, which improves the comfort of the protective mask.
  • the first seal ring 111 and the second seal ring 121 are made of a silicone material.
  • This solution enables a better sealing performance between the protective mask and the user's face, and can prevent unfiltered air from flowing into the inside of the mask; in addition, because the silicone has good flexibility and biocompatibility, it ensures that the protective mask can be made. Comfort during use.
  • the protective mask further includes a support frame provided on the mask body, and the support frame is used to fix the filter element inside the mask body.
  • the support frame includes a first frame body 16 and a second frame body 17, and each of the first frame body 16 and the second frame body 17 has an arch shape substantially the same as that of the mask body 11.
  • the first frame body 16 is provided with a clamping slot on the edge thereof, and the second frame body 11 is provided with a buckle which can be snapped into the card slot on the inner edge of the second frame body 11;
  • the filter element 13 is also provided with the mask
  • the main body 11 has an approximately the same arched structure. After the filter element 13 is sandwiched between the first frame body 16 and the second frame body 17, the filter element 13 can be realized in the support frame by clamping the buckle in the card slot. On the fixed.
  • first frame body 16 is provided with a check valve seat 161 directly opposite the nose, and the filter element 13 and the second frame body 17 are provided with a first opening respectively at positions facing the one-way valve valve seat 161.
  • the one-way valve seat 161 can be used for clamping the one-way valve sheet 141, so as to form a one-way valve 14 that allows gas to flow out from the inside of the protective mask to the outside.
  • first frame body 16 is further provided with a mounting seat 162, and the mounting seat 162 is annularly arranged around the check valve seat 161 for mounting the nasal mask 12.
  • the nasal mask 12 further includes a mounting bracket 122 connected to an end of the second seal ring 121 facing the mask body, and the mounting bracket 122 is made of hard plastic. It is used for connecting with the mounting base 121. This solution reduces the difficulty of installing the nasal mask.
  • the nasal mask 12 is detachably mounted on the mounting base 162 through a mounting bracket 122.
  • the invention can adjust the protective mask structure according to the breathing needs, thereby expanding the applicable range of the protective mask.
  • the protective mask includes four second check valves 15, which are symmetrically disposed on a side wall of the second seal ring 12.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Pulmonology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Otolaryngology (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

一种易排出呼气气体的防护面罩(1)，包括面罩本体(11)和鼻罩(12)；面罩本体(11)内侧边缘设有第一密封圈(111)；鼻罩(12)具有圈状结构，其一端密封连接在面罩本体(11)的内侧，另一端设有第二密封圈(121)；防护面罩(1)通过第一密封圈(111)和第二密封圈(121)布置在使用者面部时，面罩本体(11)和鼻罩(12)内部之间形成罩设使用者鼻部的第一腔室(101)；面罩本体(11)、鼻罩(12)外部、第一密封圈(111)内部之间形成罩设使用者口部的第二腔室(102)；防护面罩(1)还包括滤芯(13)、第一单向阀(14)和第二单向阀(15)，滤芯(13)用于过滤从面罩本体(11)外侧流入内侧的空气；第一单向阀(14)设置在位于第一腔室(101)内的面罩本体(11)上，允许气体从第一腔室(101)流出至防护面罩(1)外侧；第二单向阀(15)设置在鼻罩(12)的圈状结构上，允许气体从第二腔室(102)流入至第一腔室(101)。

Description

易排出呼出气体的防护面罩 技术领域
本发明涉及穿戴式防护装置技术领域，具体涉及一种易排出呼出气体的防护面罩。
背景技术
防护面罩对于进入人体呼吸道的空气能够起到过滤作用，使用者在佩戴防护面罩后可以有效阻止口腔或鼻腔吸入空气中的有害物质，从而减少空气污染对人体健康造成的威胁。CN205730013U公开了一种面罩及用于面罩的净化组件，该面罩包括固定架，滤芯和单向阀。使用者吸气时，空气经滤芯过滤后流入面罩内侧；呼出气体主要经单向阀排出至面罩外侧。这种防护面罩能够对使用者的呼吸起到一定的保护作用，但由于单向阀面积有限，大量呼出气体容易积聚在面罩内侧的腔室内，从而使得面罩内侧容易处于湿热状态，降低了防护面罩使用的舒适性；且呼出气体容易再次被吸入人体，影响了使用者的呼吸效果。针对上述问题，目前已有在防护面罩上设置排风扇的产品出现，但在面罩上设置排风扇，大大增加了面罩的体积和重量，同时还增加了面罩的成本，因此限制了防护面罩的应用范围。
发明内容
本发明提供了一种易排出呼出气体的防护面罩，通过设置鼻罩，使得呼出气体能够快速排出至防护面罩外侧。
本发明的目的在于提供一种易排出呼气气体的防护面罩，包括面罩本体和鼻罩；所述面罩本体具有开口向内的拱形结构，其内侧边缘设有第一密封圈；所述鼻罩具有圈状结构，其一端密封连接在所述面罩本体的内侧，另一端设有第二密封圈；所述防护面罩通过第一密封圈和第二密封圈布置在使用者面部时，所述面罩本体和鼻罩内部之间形成罩设使用者鼻部的第一腔室，所述面罩本体、鼻罩外部、第一密封圈内部之间形成罩设使用者口部的第二腔室；所述防护面罩还包括滤芯、第一单向阀和第二单向阀，所述滤芯用于过滤从面罩本体外侧流入内侧的空气；所述第一单向阀设置在位于所述第一腔室内的面罩本体上，允许气体从第一腔室流出至防护面罩外侧；所述第二单向阀设置在所述鼻罩的圈状结构上，允许气体从第二腔室流入至第一腔室。
进一步地，所述面罩本体还包括设置在所述面罩本体上的支撑架，所述支撑架包括第一架体和第二架体；所述第一架体边缘设有卡槽，所述第二架体内侧边缘上设有可卡设在所述卡槽内的卡扣；将滤芯夹设在第一架体和第二架体之间后，将卡扣卡设在卡槽中，即可实现 滤芯在支撑架上的固定。
进一步地，所述第一架体正对鼻部位置设有单向阀阀座，所述滤芯和第二架体正对单向阀阀座的位置分别设有第一开孔和第二开孔，所述单向阀座上开卡设有单向阀片，从而形成可允许气体从防护面罩内侧向外侧流出的单向阀。
进一步地，所述鼻罩还包括安装架，所述安装架连接在所述第二密封圈正对面罩本体一端，用于与所述安装座连接。
本发明提供的防护面罩尤其适用于通过口腔和/或鼻腔吸气、通过鼻腔呼气的呼吸模式；本发明与未设置鼻罩的面罩相比，呼出气体在第一腔室内压力的作用下，能够快速地从第一单向阀中排出，不会在扩散至第二腔室内，从而有效减少了呼出气体在防护面罩内侧的积聚量，避免呼出气体中的水分凝聚在滤芯内影响滤芯的过滤效果，提升了防护面罩使用的舒适性。
附图说明
图1是本发明第一实施例中防护面罩的结构示意图。
图2是本发明第一实施例中鼻罩在防护面罩中的安装示意图。
图3是本发明第一实施例中防护面罩的爆炸图。
图4是本发明第一实施例中鼻罩的爆炸图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施方式，对本发明进行进一步详细说明。
此说明书中，防护面罩使用时，靠近使用者面部一侧为“内侧”，远离使用者面部一侧为“外侧”。
参考图1至图3，本发明第一实施例提供了一种防护面罩1，包括面罩本体11和鼻罩12；所述面罩本体11具有开口朝向内侧的拱形结构，其内侧边缘设有第一密封圈111；所述鼻罩12具有圈状结构，其一端密封连接在所述面罩本体11的内侧，另一端设有第二密封圈121；所述防护面罩通过第一密封圈111和第二密封圈121布置在使用者面部时，所述面罩本体11和鼻罩12内部之间形成罩设使用者鼻部的第一腔室101，所述面罩本体11、鼻罩12外部、第一密封圈111内部之间形成罩设使用者口部的第二腔室102；所述防护面罩1还包括滤芯13、第一单向阀14和第二单向阀15，所述滤芯13用于过滤从面罩本体11外侧流入内侧的空气；所述第一单向阀14设置在位于所述第一腔室101内的面罩本体11上，允许气体从第一腔室101流出至防护面罩1外侧；所述第二单向阀15设置在所述鼻罩12的圈状结构上， 允许气体从第二腔室102流入至第一腔室101。
本发明提供的防护面罩尤其适用于通过口腔和/或鼻腔吸气、通过鼻腔呼气的呼吸模式。吸气时，空气经滤芯过滤后进入防护面罩内侧，通过口腔吸气时，口腔可吸入进入第二腔室内的空气；通过鼻腔吸气时，在呼吸负压的作用下，进入第二腔室内的空气可经第二单向阀流入至第一腔室内，再被吸入至使用者肺部。使用者通过鼻腔呼气时，呼出气体能很快从第一单向阀排出至防护面罩外侧，而不会扩散至第二腔室内。本发明与未设置鼻罩的面罩相比，呼出气体在第一腔室内压力的作用下，能够快速地从第一单向阀中排出，不会在扩散至第二腔室内，从而有效减少了呼出气体在防护面罩内侧的积聚量，避免呼出气体中的水分凝聚在滤芯内影响滤芯的过滤效果，提升了防护面罩使用的舒适性。
本实施例中，所述第一密封圈111和第二密封圈121由硅胶材料制成。本方案使得防护面罩与使用者面部之间具有较好的密封性能，能够避免未过滤的空气流入面罩内侧；此外，由于硅胶具有较好的柔韧性和生物相容性，从而保障了使得防护面罩使用时的舒适性。
需要说明的是，本实施例中，第一单向阀的面积越大，防护面罩中呼出气体的排出效果越好。
针对滤芯的设置方式，本发明并无特殊限制。本实施例中，所述防护面罩还包括设置在所述面罩本体上的支撑架，所述支撑架用于将滤芯固定在面罩本体内侧。
具体地，如图3所示，所述支撑架包括第一架体16和第二架体17，所述第一架体16和第二架体17均具有与面罩本体11大致相同的拱形结构；所述第一架体16边缘设有卡槽，所述第二架体11内侧边缘上设有可卡设在所述卡槽内的卡扣；所述滤芯13也具有与所述面罩本体11大致相同的拱形结构，将滤芯13夹设在第一架体16和第二架体17之间后，再通过将卡扣卡设在卡槽中，即可实现滤芯13在支撑架上的固定。
进一步地，所述第一架体16正对鼻部位置设有单向阀阀座161，所述滤芯13和第二架体17正对单向阀阀座161的位置分别设有第一开孔131和第二开孔171，所述单向阀座161可用于卡设单向阀片141，从而形成可允许气体从防护面罩内侧向外侧流出的单向阀14。
进一步地，所述第一架体16上还设有安装座162，所述安装座162环设在所述单向阀阀座161周围，用于安装所述鼻罩12。
进一步地，如图4所示，所述鼻罩12还包括安装架122，所述安装架122连接在所述第二密封圈121正对面罩本体一端，所述安装架122由硬质塑料制成，用于与所述安装座121连接。本方案降低了鼻罩的安装难度。
较佳地，所述鼻罩12通过安装架122可拆卸安装在所述安装座162上。本发明能够根据呼吸需求调整防护面罩结构，从而扩大了防护面罩的适用范围。
进一步地，所述第二单向阀15至少有一个，本实施例中，所述防护面罩包括四个第二单向阀15，对称设置在所述第二密封圈12的侧壁上。
以上所述仅为本发明的较佳实施方式而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (4)

  1. 一种易排出呼气气体的防护面罩，其特征在于，包括面罩本体和鼻罩；所述面罩本体具有开口向内的拱形结构，其内侧边缘设有第一密封圈；所述鼻罩具有圈状结构，其一端密封连接在所述面罩本体的内侧，另一端设有第二密封圈；所述防护面罩通过第一密封圈和第二密封圈布置在使用者面部时，所述面罩本体和鼻罩内部之间形成罩设使用者鼻部的第一腔室；所述面罩本体、鼻罩外部、第一密封圈内部之间形成罩设使用者口部的第二腔室；所述防护面罩还包括滤芯、第一单向阀和第二单向阀，所述滤芯用于过滤从面罩本体外侧流入内侧的空气；所述第一单向阀设置在位于所述第一腔室内的面罩本体上，允许气体从第一腔室流出至防护面罩外侧；所述第二单向阀设置在所述鼻罩的圈状结构上，允许气体从第二腔室流入至第一腔室。
  2. 根据权利要求1所述的易排出呼出气体的防护面罩，其特征在于，所述面罩本体还包括设置在所述面罩本体上的支撑架，所述支撑架包括第一架体和第二架体；所述第一架体边缘设有卡槽，所述第二架体内侧边缘上设有可卡设在所述卡槽内的卡扣；将滤芯夹设在第一架体和第二架体之间后，将卡扣卡设在卡槽中，即可实现滤芯在支撑架上的固定。
  3. 根据权利要求2所述的易排出呼出气体的防护面罩，其特征在于，所述第一架体正对鼻部位置设有单向阀阀座，所述滤芯和第二架体正对单向阀阀座的位置分别设有第一开孔和第二开孔，所述单向阀座上开卡设有单向阀片，从而形成可允许气体从防护面罩内侧向外侧流出的单向阀。
  4. 根据权利要求3所述的易排出呼出气体的防护面罩，其特征在于，所述鼻罩还包括安装架，所述安装架连接在所述第二密封圈正对面罩本体一端，用于与所述安装座连接。
PCT/CN2018/099127 2018-06-07 2018-08-07 易排出呼出气体的防护面罩 WO2019232914A1 (zh)

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