阅读说明：本技术 由正压空气屏障隔离的防护口罩和防护面罩 (Protective mask and face shield isolated by positive pressure air barrier ) 是由 胡杰 胡楚璇 胡浩峰 于 2020-06-18 设计创作，主要内容包括：本发明公开了由正压空气屏障隔离的防护口罩和防护面罩,由空气加压和过滤装置、加压和过滤空气输送管、防护罩组成,空气加压和过滤装置由集合机架、便携电源、加压电机、空气加压器件、空气过滤器件、加压空气输出口组成,空气加压器件由动涡盘、静涡盘、主动偏心轴、防自转机构组成,空气过滤器件由滤芯套壳、过滤芯组成,防护罩的底框设有人罩密合压条和佩戴绳带,防护罩的罩面由防护密封罩面和包括静电吸附层、保压隔离层、气压屏障层形成的防护空气屏障隔离罩面组成,罩面和底框密合连接,在人罩之间形成呼吸空间由加压器件提供加压过滤空气,是一种非一次性使用、密合性好、并可有效过滤病毒和悬浮微颗粒且不产生呼吸阻力的防护罩。(The invention discloses a protective mask and a protective face mask isolated by a positive pressure air barrier, which consists of an air pressurizing and filtering device, a pressurizing and filtering air conveying pipe and a protective cover, wherein the air pressurizing and filtering device consists of an integrated frame, a portable power supply, a pressurizing motor, an air pressurizing device, an air filtering device and a pressurized air output port, the air pressurizing device consists of a movable vortex disk, a static vortex disk, a driving eccentric shaft and an anti-rotation mechanism, the air filtering device consists of a filter element casing and a filter core, a bottom frame of the protective cover is provided with a cover sealing batten and a rope wearing belt, the cover surface of the protective cover consists of a protective sealing cover surface and a protective air barrier isolating cover surface formed by an electrostatic adsorption layer, a pressure maintaining isolating layer and an air pressure barrier layer, the cover surface is in sealing connection with the bottom frame, a breathing space is formed between the covers, pressurized and filtered air is provided by the pressurizing device, and, The protective cover has good sealing property, can effectively filter viruses and suspended microparticles and does not generate respiratory resistance.)

1. The protective mask separated by the positive pressure air barrier is characterized by comprising an air pressurizing and filtering device, a pressurizing and filtering air conveying pipe and a protective cover;

the air pressurizing and filtering device comprises a collecting rack, a portable charging power supply, a pressurizing motor, an air pressurizing device, an air filtering device and a pressurized air output port, wherein the collecting rack is provided with a portable wearing rope belt, and the pressurized air output port is connected with a pressurized and filtered air conveying pipe;

the air pressurizing device is a vortex pressurizer and consists of a movable vortex disk, a static vortex disk, an active eccentric shaft and an anti-rotation mechanism, wherein the active eccentric shaft is driven by a pressurizing motor;

or the air pressurizing device is a piston pressurizer, a screw rod pressurizer, a rotor pressurizer, a centrifugal pressurizer or an axial flow pressurizer;

the air filter device comprises a filter element casing and a filter element;

the protective cover consists of a protective cover bottom frame and a protective cover surface;

the bottom frame of the protective cover is provided with a cover sealing pressing strip and a protective cover wearing rope belt which are connected with the protective cover in a sealing way;

the protective cover surface consists of a protective sealing cover surface and a protective air barrier isolation cover surface, the protective sealing cover surface is provided with a sealing connecting frame connected with the protective air barrier isolation cover surface and an access port connected with a pressurizing and filtering air conveying pipe, and is in sealing connection with the protective cover bottom frame, the protective air barrier isolation cover surface is in sealing connection with the sealing connecting frame of the protective sealing cover surface, and positive pressure air input into the protective cover flows out in a single direction to form an air isolation barrier;

thereby forming a breathing space isolated from the outside through the nose passage of the wearer, and providing filtered positive pressure air to the breathing space by the air pressurizing and filtering device, thereby providing the wearer with a filtered and isolated non-resistance breathing air.

2. The protective mask isolated by the positive pressure air barrier according to claim 1, wherein the autorotation preventing means comprises a driven eccentric shaft supporting base, a driven eccentric shaft, and an eccentric shaft transmission device, wherein the driven eccentric shaft is supported by the driven eccentric shaft supporting base and is driven by the eccentric shaft transmission device to rotate synchronously with the driving eccentric shaft, and the driving eccentric shaft and the driven eccentric shaft which rotate synchronously are connected to the orbiting scroll respectively to drive the orbiting scroll to perform a planar circular motion;

or the autorotation preventing mechanism is a cross coupling ring, a spherical coupling and a cylindrical pin coupling.

3. The protective mask isolated by the positive pressure air barrier according to claim 1, wherein the protective air barrier isolation mask face comprises a pressure maintaining isolation layer, positive pressure air in the pressure maintaining isolation layer forms a positive-negative pressure difference with the external environment, the positive pressure air flows out in a single direction to form the air isolation barrier, and the pressure maintaining isolation layer is provided with an exhalation check valve.

4. The protective mask protected by a positive air pressure barrier of claim 1 wherein said protective air barrier cover comprises an electrostatic adsorbent layer for adsorbing suspended microparticles from the exhaled breath of a wearer.

5. The protective mask with positive air barrier isolation of claim 1 wherein said protective air barrier isolation mask face comprises an air barrier isolation layer comprised of a mesh of air barrier lines with air jets, said air barrier lines having air jets, said positive air jets from said air pressurizing and filtering means providing additional air barrier isolation quality.

6. The protective facial mask isolated by a positive air pressure barrier as claimed in claim 1, wherein said portable rechargeable power source is provided with a charge level surplus warning alert function.

7. The protective mouth mask isolated by a positive pressure air barrier according to claim 1, wherein the protective face mask is provided with a positive pressure breathing space area and an external environment area positive and negative pressure difference failure warning and reminding function.

8. The protective mask protected by a positive air pressure barrier of claim 1 wherein the air filter element is a removable filter cartridge.

9. The protective mask isolated by the positive pressure air barrier is characterized by comprising an air pressurizing and filtering device, a pressurizing and filtering air conveying pipe and a protective cover;

the air pressurizing and filtering device comprises a collecting rack, a portable charging power supply, a pressurizing motor, an air pressurizing device, an air filtering device and a pressurized air output port, wherein the collecting rack is provided with a portable wearing rope belt, and the pressurized air output port is connected with a pressurized and filtered air conveying pipe;

the air pressurizing device is a vortex pressurizer and consists of a movable vortex disk, a static vortex disk, an active eccentric shaft and an anti-rotation mechanism, wherein the active eccentric shaft is driven by a pressurizing motor;

or the air pressurizing device is a piston pressurizer, a screw rod pressurizer, a rotor pressurizer, a centrifugal pressurizer or an axial flow pressurizer;

the air filter device comprises a filter element casing and a filter element;

the protective cover consists of a protective cover bottom frame and a protective cover surface;

the bottom frame of the protective cover is provided with a cover sealing pressing strip and a protective cover wearing rope belt which are connected with the protective cover in a sealing way;

the protective cover surface consists of a protective sealing cover surface and a protective air barrier isolation cover surface, the protective sealing cover surface is provided with a sealing connecting frame connected with the protective air barrier isolation cover surface and an access port connected with a pressurizing and filtering air conveying pipe, and is in sealing connection with the protective cover bottom frame, the protective air barrier isolation cover surface is in sealing connection with the sealing connecting frame of the protective sealing cover surface, and positive pressure air input into the protective cover flows out in a single direction to form an air isolation barrier;

thereby forming a breathing space isolated from the outside through the passage of the protective mask in the face area of the wearer, filtered positive pressure air being supplied to the breathing space by the air pressurizing and filtering means, thereby providing the wearer with a filtered and isolated non-resistant breathing air.

10. A protective mask isolated by a positive air pressure barrier according to claim 9, further comprising a portable oxygen bottle, an oxygen delivery tube, the protective mask having an oxygen delivery tube access for providing a minimal amount of oxygen from the portable oxygen bottle to the breathing space.

The technical field is as follows:

the invention belongs to the technical field of protective devices, and particularly relates to a protective mask and a protective face mask isolated by a positive pressure air barrier.

Background art:

with the attention of people to their health, more and more people have continuously increased requirements on the quality of air inhaled into the body, however, with the rapid development of the industry in recent years, a large amount of harmful substances are discharged into the air, especially the recent new coronavirus with strong pathogenicity and infectivity mainly propagates through droplets, so that people have to face the dangerous environment of virus infection, and great influence is caused on the work, life and life of people, and people urgently need to live in a safe, stable and good air environment. At present, in the face of the environment changing from the outside world, especially the clinical susceptible infection prevention and treatment ward of hospital, people mainly still rely on wearing protective facial mask to filter virus and harmful particulate matter in the air, ensure that the safety of the air quality inhaled into the body is good, current protective facial mask can filter the suspension microparticle of different diameters according to different grades, the medical protective facial mask of highest grade, mainly by the inlayer, the intermediate level, outer the skin constitutes, wherein the intermediate level adopts melt-blown filter cloth to play the separation effect to the bacterial virus, can filter 0.3 micron granule and reach 95%, the medical surgery gauze mask of grade can separate 3 micron granule and reach harmful matters such as 95% and liquid that splashes, ordinary gauze mask can only separate large granule dust. Although the existing mask can block most of harmful substances and viruses outside the mouth and the nose of a passage through which air enters and exits from a human body, and the high-grade mask is necessary equipment for preventing and controlling clinical infection in hospitals, the existing mask mainly adopts a multi-layer non-woven fabric structure, is a disposable wearing article and needs a large amount of daily storage, and the higher the grade of the existing mask is, the better the filtering effect is, the higher the breathing resistance is, the poorer the comfortable feeling of wearing the mask is, the damage to the cardiopulmonary function can be caused after long-time wearing, the mask is not suitable for being worn for people with weak cardiopulmonary function, and the common medical three-layer plane mask is also poorer in sealing property than the mask with a three-dimensional structure, so that the defects of the existing mask can be overcome, and the high-grade protective mask or protective mask which is non-disposable, has good sealing property, can effectively filter viruses and suspended microparticles, and does not generate breathing resistance is developed, has great social benefit and economic benefit.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a protective mask and a protective face mask isolated by a positive pressure air barrier, which are characterized by consisting of an air pressurizing and filtering device, a pressurizing and filtering air conveying pipe and a protective mask, wherein a breathing space isolated from the outside is formed by the protective mask, and the air pressurizing and filtering device provides filtered positive pressure air to a wearer for filtering and isolating resistance-free breathing air.

The purpose of the invention is realized by the following technical scheme:

the protective mask separated by the positive pressure air barrier comprises an air pressurizing and filtering device, a pressurizing and filtering air conveying pipe and a protective cover;

the air pressurizing and filtering device comprises a collecting rack, a portable charging power supply, a pressurizing motor, an air pressurizing device, an air filtering device and a pressurized air output port, wherein the collecting rack is provided with a portable wearing rope belt, and the pressurized air output port is connected with a pressurized and filtered air conveying pipe;

the air pressurizing device is a vortex pressurizer and consists of a movable vortex disk, a static vortex disk, an active eccentric shaft and an anti-rotation mechanism, wherein the active eccentric shaft is driven by a pressurizing motor;

or the air pressurizing device is a piston pressurizer, a screw rod pressurizer, a rotor pressurizer, a centrifugal pressurizer or an axial flow pressurizer;

the air filter device comprises a filter element casing and a filter element;

the protective cover consists of a protective cover bottom frame and a protective cover surface;

the bottom frame of the protective cover is provided with a cover sealing pressing strip and a protective cover wearing rope belt which are connected with the protective cover in a sealing way;

the protective cover surface consists of a protective sealing cover surface and a protective air barrier isolation cover surface, the protective sealing cover surface is provided with a sealing connecting frame connected with the protective air barrier isolation cover surface and an access port connected with a pressurizing and filtering air conveying pipe, and is in sealing connection with the protective cover bottom frame, the protective air barrier isolation cover surface is in sealing connection with the sealing connecting frame of the protective sealing cover surface, and positive pressure air input into the protective cover flows out in a single direction to form an air isolation barrier; thereby forming a breathing space isolated from the outside in the nasal passage of the wearer through the protective mask, pressurizing with air and

the filter means provides filtered positive pressure air to the breathing space, thereby providing the wearer with a filtered and isolated non-resistant breathing air.

The anti-autorotation mechanism consists of a driven eccentric shaft supporting seat, a driven eccentric shaft and an eccentric shaft transmission device, wherein the driven eccentric shaft is supported by the driven eccentric shaft supporting seat and is driven by the eccentric shaft transmission device to synchronously rotate with the driving eccentric shaft, and the driving eccentric shaft and the driven eccentric shaft which synchronously rotate are respectively connected with the movable scroll disk to drive the movable scroll disk to do plane circular motion;

or the autorotation preventing mechanism is a cross coupling ring, a spherical coupling and a cylindrical pin coupling.

The protective air barrier isolation cover face comprises a pressure maintaining isolation layer, positive pressure air in the pressure maintaining isolation layer forms positive and negative pressure difference with an external environment, the positive pressure air flows out in a single direction to form an air isolation barrier, and the pressure maintaining isolation layer is provided with a breathing out check valve.

The protective air barrier isolation cover surface comprises an electrostatic adsorption layer for adsorbing suspended microparticles in exhaled air of a wearer.

The protective air barrier isolation cover surface comprises an air barrier isolation layer, the air barrier isolation layer is composed of grids made by air barrier pipelines, the air barrier pipelines are provided with air nozzles, and positive pressure air provided by air pressurization and a filtering device is sprayed with pressurized air to additionally improve the air barrier isolation quality.

The portable charging power supply is provided with an electric quantity residual value warning and reminding function.

The protective face mask is provided with a positive pressure breathing space area and a positive and negative pressure difference failure warning and reminding function between the external environment area.

The air filter element is replaced by a plug-in filter element.

The protective mask separated by the positive pressure air barrier comprises an air pressurizing and filtering device, a pressurizing and filtering air conveying pipe and a protective cover;

the air pressurizing and filtering device comprises a collecting rack, a portable charging power supply, a pressurizing motor, an air pressurizing device, an air filtering device and a pressurized air output port, wherein the collecting rack is provided with a portable wearing rope belt, and the pressurized air output port is connected with a pressurized and filtered air conveying pipe;

the air pressurizing device is a vortex pressurizer and consists of a movable vortex disk, a static vortex disk, an active eccentric shaft and an anti-rotation mechanism, wherein the active eccentric shaft is driven by a pressurizing motor;

or the air pressurizing device is a piston pressurizer, a screw rod pressurizer, a rotor pressurizer, a centrifugal pressurizer or an axial flow pressurizer;

the air filter device comprises a filter element casing and a filter element;

the protective cover consists of a protective cover bottom frame and a protective cover surface;

the bottom frame of the protective cover is provided with a cover sealing pressing strip and a protective cover wearing rope belt which are connected with the protective cover in a sealing way;

the protective cover surface consists of a protective sealing cover surface and a protective air barrier isolation cover surface, the protective sealing cover surface is provided with a sealing connecting frame connected with the protective air barrier isolation cover surface and an access port connected with a pressurizing and filtering air conveying pipe, and is in sealing connection with the protective cover bottom frame, the protective air barrier isolation cover surface is in sealing connection with the sealing connecting frame of the protective sealing cover surface, and positive pressure air input into the protective cover flows out in a single direction to form an air isolation barrier;

the protective mask isolated by the positive pressure air barrier further comprises a portable oxygen bottle and an oxygen conveying pipe, wherein the protective mask surface is provided with an oxygen conveying pipe access port, and oxygen is supplied to the breathing space in a micro-scale manner by the portable oxygen bottle;

thereby forming a breathing space isolated from the outside through the passage of the protective mask in the face area of the wearer, filtered positive pressure air being supplied to the breathing space by the air pressurizing and filtering means, thereby providing the wearer with a filtered and isolated non-resistant breathing air.

The invention has the beneficial effects that:

1. the invention provides a protective mask and a protective face mask isolated by a positive pressure air barrier, which are composed of an air pressurizing and filtering device, a pressurizing and filtering air conveying pipe and a protective cover, wherein: the protective cover consists of a protective cover bottom frame and a cover surface, wherein the protective cover bottom frame is provided with a cover sealing batten and a protective cover surface to form a breathing space isolated from the outside in an oral-nasal passage or a face area; the air pressurizing and filtering device is characterized in that a movable vortex disc is driven by a pressurizing motor to do plane circular motion relative to a fixed vortex disc, the movable vortex disc and the fixed vortex disc form continuous change of closed volume, and a compression cavity is continuously generated to generate pressurized air to a filter, so that clean air with high-grade filtering effect and no breathing resistance can be provided for an external isolated breathing space.

2. The invention provides a protective mask and a protective face mask separated by a positive pressure air barrier.A movable vortex disk autorotation prevention mechanism of an air pressurizing and filtering device of the protective mask and the protective face mask synchronously rotates by a driven eccentric shaft and a driving eccentric shaft so as to drive the movable vortex disk to do plane circular motion relative to a static vortex disk.

3. The invention provides a protective mask and a protective face mask separated by a positive pressure air barrier, exhaled air is discharged in one direction from the protective air barrier separation mask surface, and multistage protection separated by the air barrier can be generated between a breathing space and the external environment by a static adsorption layer, a pressure maintaining isolation layer and an air barrier isolation layer, wherein: the static adsorbed layer adsorbs the processing to the suspended microparticles in the person of wearing exhaling, and positive pressure air and external environment in the pressurize isolation layer form positive negative pressure difference, and positive pressure air one-way outflow forms the air isolation barrier, and the air barrier isolation layer is by spouting the protective mass that pressurized air extra improves and external environment keeps apart outward.

4. The invention provides a protective mask and a protective face mask separated by a positive pressure air barrier, wherein a protective cover bottom frame and a protective cover surface are both made of non-disposable materials and can be circularly and cleanly used, a breathing space with good human cover tightness can be established by the three-dimensional structure of the protective cover bottom frame, and an air pressurizing and filtering device can provide high-grade filtering effect and clean air without breathing resistance.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present invention;

FIG. 2 is a schematic view of an air pressurizing and filtering apparatus according to example 1 of the present invention;

FIGS. 3a-3b are exploded schematic views of an air pressurizing and filtering apparatus according to example 1 of the present invention;

FIG. 4 is a schematic structural view of an anti-rotation mechanism according to an embodiment of the present invention;

5a-5b are schematic cross-sectional views of scroll profiles when a movable scroll makes planar circular motion around a fixed scroll in embodiment 1 of the present invention;

FIGS. 6a-6b are schematic views of the structure of a protective mask in accordance with embodiment 1 of the present invention;

FIGS. 7a-7b are schematic exploded views of a protective mask in accordance with embodiment 1 of the present invention;

FIG. 8 is a cross-sectional view of an air protective barrier cover of example 1 of the present invention;

FIG. 9 is a schematic structural view of embodiment 2 of the present invention;

FIG. 10 is a schematic view of a protective mask according to example 2 of the present invention;

FIG. 11 is an exploded view of a face shield in accordance with an embodiment 2 of the present invention;

in the drawings

1 air pressurizing and filtering device

2 pressurized and filtered air delivery pipe

3 shield bottom frame

4 protective cover

5 Integrated rack

6 hanging and buckling rope of frame arm

7 Portable charging power supply

8-pressure motor

9 air pressurizing device

10 air filter device

11 eccentric shaft bearing plate

12 orbiting scroll support

13 orbiting scroll

14 static scroll

15 pressurization gas cabin

16 pressurized air outlet

17 autorotation prevention mechanism

18 frame end plate

19 driven eccentric shaft supporting seat

20 driving wheel fulcrum

21 driving wheel

22 drive wheel

23 driven wheel

24 active eccentric shaft

25 driven eccentric shaft

26 master-slave eccentric shaft coupling block

27 fixed bottom block of orbiting scroll

28-shaped movable scroll plate vortex molded line

29 static scroll casing

30 static vortex disc vortex molded line

31 air inlet

32 air outlet

33 filter element casing

34 plug pull buckle of filter element casing

35 filter element

36 air suction cavity

37 compression chamber

Sealing batten for 38-person cover

39 ear-hanging wearing rope with protective cover

40 protective cover head belt type wearing rope

41 protective seal cover surface

42 and air barrier isolation cover surface close connection frame

43 air delivery pipe inlet

44 air barrier insulating cover

45 positive pressure air output hole

46 positive and negative air pressure difference detector

47 nose clip strip

48 electrostatic adsorption layer

49 pressure maintaining isolation layer

50-exhaling check valve

51 air barrier layer

52 air barrier line

53 air jet

54 externally spraying pressurized air

55 portable oxygen bottle

56 oxygen conveying pipe

57 oxygen delivery pipe access port

Waist buckle belt of 58 machine frame

59 protective cover head hoop type wearing rope

60 mask

61 pressurizing motor spindle through hole

Detailed Description

For a further understanding of the contents, features and advantages of the present invention, the following examples are given by way of illustration and are described in detail in conjunction with the accompanying drawings: