CN112933451A

CN112933451A - Protective mask

Info

Publication number: CN112933451A
Application number: CN202110204798.1A
Authority: CN
Inventors: 李金中; 韩德伟
Original assignee: Shenzhen Meidahang Technology Co ltd
Current assignee: Shenzhen Meidahang Technology Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-06-11
Also published as: WO2022179523A1

Abstract

The invention relates to a protective mask, comprising: the frame body is provided with a mounting position; the mask body is assembled at the installation position of the frame body, and a breathing space is enclosed between the frame body and the mask body; and the air supply mechanism comprises an air supply assembly and an air supply pipeline, one end of the air supply pipeline is communicated with the air supply assembly, the other end of the air supply pipeline extends into the breathing space and faces the nasal inhalation part of a user, and the air supply assembly is used for driving external air to enter the breathing space through the air supply pipeline. The air supply mechanism supplies air to the breathing space, external air is supplied into the breathing space, and a user can breathe fresh air. The supply air duct is towards user's snuffing portion, for user's directional air supply of snuffing portion to form the wind nest in the snuffing portion, improve breathing oxygen concentration, with improve breathing smooth and easy nature, and can reduce the power consumption of air supply subassembly. In addition, the air pocket can blow away the exhaled fog attached to the cover body, so that the cover body is transparent and clear.

Description

Protective mask

Technical Field

The invention relates to the technical field of protective masks, in particular to a protective mask.

Background

The protective mask is generally covered on the face of a user and used for blocking polluted air such as dust, smoke, poison gas and the like and preventing a human body from inhaling the polluted air. Generally, the cover body of protective mask is thicker organic glass, and the protective mask both sides are for admitting air the filter cartridge, and correspond user's mouth nose portion on the cover body and set up the filtration gas outlet of check valve, and user's face is enclosed and is established in the face guard like this, and outside air current need get into the face guard through the filter cartridge that admits air again when user breathes air inside, breathes smoothly inadequately. Moreover, protective masks are prone to fogging.

Disclosure of Invention

Therefore, it is necessary to provide a protective mask for solving the problems that a user cannot breathe smoothly and fog easily when using a conventional protective mask.

A protective mask, comprising:

a frame body having a mounting location;

the mask body is assembled at the installation position of the frame body, and a breathing space is enclosed between the frame body and the mask body; and

the air supply mechanism comprises an air supply assembly and an air supply pipeline, one end of the air supply pipeline is communicated with the air supply assembly, the other end of the air supply pipeline extends into the breathing space and faces the nasal inhalation part of a user, and the air supply assembly is used for driving external air to enter the breathing space through the air supply pipeline.

When the protective mask is worn on the head of a user, the frame body is attached to the face of the user, the mask body is located in front of the face of the user, and the breathing space formed by enclosing the mask body and the frame body provides breathing air for the user. Wherein, air supply mechanism supplies air to breathing space, sends into breathing space with outside air in, and the user can breathe fresh air, improves and breathes smoothly nature. And, supply-air duct is towards user's snuffing portion, for user's snuffing portion directional air supply, makes outside air directly blow to user's snuffing portion under fluid mechanics's effect to form the wind nest in the snuffing portion, for the user provides fresh air, improve breathing oxygen concentration, further improve and breathe smooth and easy nature, and can reduce the power consumption of air supply subassembly. In addition, the air pocket can blow away the exhaled fog attached to the mask, so that the mask body is transparent and clear.

In one embodiment, the mask body has a breathing zone corresponding to the nose and mouth of the user, the breathing zone being configured to flex outwardly relative to the breathing space.

In one embodiment, the air supply pipeline comprises a main pipeline and two branch pipelines, the main pipeline is communicated with the air supply assembly, and the two branch pipelines are communicated with the main pipeline;

wherein, two branch pipelines stretch into breathe the space, just two snuffing holes of user's snuffing portion are faced respectively to two branch pipelines's the direction of giving vent to anger. Like this, supply air to two nasal suction holes of user's orientation respectively through two branch pipes, the person of facilitating the use breathes the air, improves and breathes smooth and easy nature, and improves and breathe oxygen concentration, reduces the power consumption of air supply subassembly.

In one embodiment, each branch pipe comprises a first branch pipe, two first branch pipes of the two branch pipes are connected with the main pipe, and two ends of the two first branch pipes, which face away from the main pipe, extend in directions away from each other respectively;

every the small transfer line still includes second small transfer line, every the second small transfer line includes the link and the free end of mutual intercommunication, every the link with first small transfer line dorsad the one end of trunk line is connected, two of second small transfer line two the free end is to the direction slope that is close to each other to respectively towards two snuffing holes of user's snuffing portion. Equivalently, the main pipeline and the two first branch pipelines are connected to form a Y-shaped air supply pipeline, and the outlets of the two first branch pipelines can be respectively positioned below two nostrils of a user to supply air to the user.

In one embodiment, the head end and the tail end of the main pipeline are both connected with the air supply assembly, the main pipeline is provided with an air distribution section arranged around the face of a user, and the two branch pipelines are both arranged on the air distribution section. The air blown in the air supply assembly may pass through the first main pipe into the second main pipe and then be directed into the two branch pipes to supply air directionally to the nasal inhalation portion of the user.

In one embodiment, the air supply assembly is assembled on the frame body; or

The air supply assembly is separated from the frame body.

In one embodiment, the frame body is provided with an air outlet communicated with the breathing space. External air flow enters the breathing space through the air supply assembly and the air supply pipeline to be breathed by a user, and air exhaled by the user can be exhausted to the outside through the air outlet in the frame body. Therefore, the air in the breathing space can be kept fresh, and the user can breathe smoothly.

In one embodiment, one side of the frame body, which faces away from the cover body, is provided with an air outlet part, and an air outlet channel which is communicated with the breathing space and the outside is defined between the air outlet part and the face of a user. Equivalently, reserve certain gap and form the air-out passageway between framework and user face, after outside air got into the breathing space under the drive of air supply subassembly, increased the pressure of breathing space, the air accessible in the breathing space discharged with the air-out passageway of outside intercommunication, and outside air can't get into the breathing space from the air-out passageway under the pressure differential effect, so accessible air-out passageway one-way air-out keeps in time letting in fresh air in the breathing space.

In one embodiment, the enclosure is at least partially made of a transparent sound-transmitting material. The transparent cover allows the user to view the external environment at any time. Meanwhile, at least part of the mask body is made of sound transmission materials, when a user speaks, sound can still be transmitted to the external environment through the mask body, the user can be allowed to talk with other people when wearing the protective mask, and the protective mask is convenient to use.

In one embodiment, the cover is detachably coupled to the frame; or

The cover body is connected with the frame body in a sealing mode.

Drawings

FIG. 1 is a schematic view of a protective mask according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of the protective mask of FIG. 1;

FIG. 3 is a schematic view of a protective mask according to another embodiment of the present invention;

fig. 4 is a schematic structural view of a macro protective mask according to another embodiment of the present invention.

100. A protective mask; 10. a frame body; 12. an air outlet; 20. a fixing member; 30. a cover body; 50. an air supply mechanism; 52. an air supply assembly; 521. a housing; 523. an air inlet filtering piece; 54. an air supply duct; 541. a main pipeline; 542. a first main pipe; 543. branch pipelines; 544. a second main pipe; 545. a first branch conduit; 547. a second branch duct; 70. the air outlet filters.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1-2, in one embodiment of the present invention, a face shield 100 is provided. The face shield 100 includes a frame 10 and a mask body 30, the frame 10 has an installation position, the mask body 30 is assembled on the frame 10, and the mask body 30 covers the installation position. Equivalently, the cover body 30 is assembled at the installation position of the frame body 10, a breathing space is formed by enclosing between the frame body 10 and the cover body 30, the frame body 10 can be sleeved on the head of a user, the head of the user breathes through the breathing space, and meanwhile, the cover body 30 on the frame body 10 is positioned in front of the head of the user to protect the face, block polluted air and prevent the user from inhaling the polluted air.

In some embodiments, the enclosure 30 is at least partially made of a transparent, acoustically transmissive material, the transparent enclosure 30 allowing the user to view the external environment at any time. Meanwhile, the mask body 30 is made of at least part of sound transmission material, so that when a user speaks, sound can still be transmitted to the external environment through the mask body 30, the user can be allowed to speak with other people when wearing the protective mask 100, and the protective mask 100 is convenient to use.

Specifically, when the user speaks, the sound waves transmitted to the shield 30 may cause the micro-particles of the transparent sound-transmitting material on the shield 30 to vibrate, and the shield 30 may transmit the sound waves, so that the user's voice may be heard in the external environment, allowing the user to conveniently talk with other people.

Optionally, the cover 30 is detachably connected to the frame 10, so that the cover 30 can be replaced conveniently. When the mask body 30 needs to be replaced, the original mask body 30 is detached from the frame body 10, and then a new mask body 30 is assembled to the frame body 10, so that the universality of the protective mask 100 is improved. For example, the cover 30 is engaged with the frame 10, and is easily disassembled and assembled. It is understood that the cover 30 and the frame 10 may be hermetically connected, for example, by being bonded by glue, and is not limited thereto.

Still optionally, the face shield 100 further comprises a fixing member 20, and the fixing member 20 is connected to the frame body 10 for fixing the face shield 100 on the head of the user. For example, the fixing member 20 is two straps, the length of which is adjustable, and the two straps can fix the frame body 10 on the head of the user from both sides. It is understood that the fixing member 20 may also be a cap or the like, and is not limited herein.

In some embodiments, the face shield 100 further comprises an air supply mechanism 50, wherein the air supply mechanism 50 is used for driving external air flow into the breathing space. When the user wears the protective mask 100, the frame body 10 is attached to the face of the user, the mask body 30 is located in front of the face of the user, and a breathing space formed by enclosing the mask body 30 and the frame body 10 provides breathing air for the user. Meanwhile, the air supply mechanism 50 in the protective mask 100 supplies air to the breathing space, and supplies outside air into the breathing space, so that a user can breathe more fresh air, and the user can breathe smoothly. In addition, after the air supply mechanism 50 supplies the outside air into the breathing space, the difference between the temperature inside the breathing space and the temperature of the outside environment is small, and the cover body 30 can be prevented from being fogged due to the overlarge difference between the inside temperature and the outside temperature, so that the cover body 30 is kept transparent and clear, and the visual field of a user can not be influenced.

Further, the air supply mechanism 50 includes an air supply assembly 52 and an air supply duct 54, one end of the air supply duct 54 is communicated with the air supply assembly 52, the other end of the air supply duct 54 extends into the breathing space and faces the nasal inhalation part of the user, and the air supply assembly 52 is used for driving external air to enter the breathing space through the air supply duct. Thus, the negative pressure created by the blower assembly 52 draws ambient air through the blower duct 54 into the breathing space to provide fresh air to the breathing space. Furthermore, the air supply duct 54 faces the nasal inhalation part of the user to supply air directionally to the nasal inhalation part of the user, so that the external air directly flows to the nasal inhalation part of the user under the action of fluid mechanics, and an air pocket is formed at the nasal inhalation part to improve the concentration of the breathing oxygen, further improve the breathing smoothness and reduce the power consumption of the air supply assembly 52. In addition, the air pocket can blow away the exhaled fog attached to the cover body 30, so that the cover body 30 is transparent and clear.

In some embodiments, the mask body 30 has a breathing region corresponding to the mouth and nose of the user, and the breathing region is configured to be outwardly curved relative to the breathing space, so that the breathing space corresponding to the mouth and nose of the user is an arc-shaped space, which facilitates the air supplied by the air supply duct 54 to form an air pocket at the mouth and nose of the user, so as to satisfy hydromechanics, supply more fresh air to the mouth and nose of the user, increase the oxygen concentration in the air, and make the breathing of the user smoother. It is understood that the area of the mask body 30 outside the breathing area may be an arc-shaped surface that is curved outward relative to the breathing space, or may be a plane, which is not limited herein. Specifically, in this embodiment, the entire mask body 30 is outwardly curved with respect to the breathing space, which facilitates formation of a wind nest at the nose and mouth of the user, and facilitates manufacture.

Specifically, the air supply duct 54 includes a main duct 541 and a plurality of branch ducts 543, the main duct 541 communicates with the air supply assembly 52, and the plurality of branch ducts 543 communicate with the main duct 541. Wherein, a plurality of branch pipelines 543 stretch into the breathing space and are all communicated with the breathing space. The trunk line 541 is connected between the air supply assembly 52 and the branch pipes 543, the negative pressure generated by the air supply assembly 52 drives the air flow to enter the trunk line 541 firstly, then the air flow enters the branch pipes 543, finally the air flow enters the breathing space through the branch pipes 543, the air flow is supplied to the breathing space from multiple directions, the fresh air entering the breathing space is more uniform, and the smoothness of breathing is further improved.

Specifically, the number of the branch pipes 543 is two, and the two branch pipes 543 stretch into the breathing space, and the air outlet directions of the two branch pipes 543 respectively face to the two nasal suction holes of the nasal suction portion of the user, so as to supply air to the two nasal suction holes of the user respectively through the two branch pipes 543, thereby facilitating the breathing of the user, improving the breathing smoothness, improving the breathing oxygen concentration, and reducing the power consumption of the air supply assembly 52.

Referring to fig. 1 to 3, in some embodiments, each of the branch pipes 543 includes a first branch pipe 545, two first branch pipes 545 of the two branch pipes 543 are connected to the main pipe 541, and two ends of the two first branch pipes 545 facing away from the main pipe 541 extend in directions away from each other; equivalently, the main pipe 541 and the two first branch pipes 545 are connected to form the "Y" shaped blowing pipe 54, and the outlets of the two first branch pipes 545 may be located below the nostrils of the user, respectively, to supply air to the user.

Further, each branch pipe 543 further comprises a second branch pipe 547, each second branch pipe 547 comprises a connecting end and a free end which are communicated with each other, each connecting end is connected with one end of the first branch pipe 545 which faces away from the main pipe 541, and the two free ends of the two second branch pipes 547 incline to the direction close to each other so as to respectively face two nostrils of the user, so that air can be fed to the lower part of the nostrils of the user through the branch pipes 543, the user can directly breathe the gas discharged by the second branch pipes 547, and the breathing is smoother.

Optionally, the two branch ducts 543 are symmetrically arranged with respect to the extension direction of the main duct 541. Thus, the two branch ducts 543 are symmetrically arranged to be respectively located at two sides of the lower portion of the nasal inhalation portion of the user, so as to provide air to the user uniformly and enable the user to breathe smoothly.

Referring to fig. 4, in other embodiments, an alternative air delivery conduit configuration is provided. Wherein, the head and the tail both ends of trunk line 541 all communicate with the supply-air outlet of air supply subassembly 52, and trunk line 541 has the distribution section of setting up around user's face, and two branch pipelines all set up on the distribution section. Equivalently, one end of main pipe 541 is communicated with the air supply outlet of air supply assembly 52, the other end of main pipe 541 bypasses from the front of the user's face and then is communicated with the air supply outlet of air supply assembly 52, at least part of main pipe 541 is an air distribution section surrounding the front of the user's face, and two branch pipes are arranged on the air distribution section, so that the two branch pipes can respectively face two nasal suction holes of the nasal suction part of the user. When the air supply assembly 52 works, external air flows enter the main pipeline 541 from the head end and the tail end of the main pipeline 541 under the driving of the air supply assembly 52, then enter the two branch pipelines 543, and further directionally supply air to the two snuffing holes of the snuffing part of the user.

Specifically, trunk line 541 includes first trunk line 542 and second trunk line 544, and first trunk line 542 communicates with the supply-air outlet of air supply assembly 52, and the head and the tail both ends of second trunk line 544 all communicate with the one end that first trunk line 542 dorsad air supply assembly 52, and second trunk line 544 has the distribution section around user's face. Thus, air blown from the blower assembly 52 may pass through the first main conduit 542 into the second main conduit 544 and then be directed into the two branch conduits 543 to deliver air directed toward the user's snuff.

Referring to fig. 2, in some embodiments, the air supply assembly 52 includes a housing 521, a blower and an air inlet filter 523, the housing 521 is provided with an air inlet and an air outlet, the blower is disposed in the housing 521 and is used for driving external air flow to flow from the air inlet to the air outlet, the air inlet filter 523 is disposed at the air inlet, and the air outlet is communicated with the air supply duct 54. When the blower inside the housing 521 works, the blower drives the external air flow from the air inlet to the air outlet, and then enters the breathing space through the air supply pipe 54, so that the external air is sent into the breathing space through the negative pressure formed when the blower works. In addition, an air inlet filter piece 523 is arranged at the air inlet to filter the airflow entering the breathing space, so that the user is prevented from sucking impurities, viruses and the like in the external environment into the body, and the user is protected.

Alternatively, the air supply unit 52 is attached to the frame body 10, and the user can wear the protective mask 100 by simply wearing the frame body 10 on the head. Alternatively, the air blowing module 52 may be separated from the frame 10, and when the user wears the protective mask 100, the air blowing module 52 may be worn at another position, for example, the air blowing module 52 may be worn on the arm or the like, depending on the actual situation, and the mounting position of the air blowing module 52 is not limited herein.

In some embodiments, the frame 10 is provided with an air outlet 12 communicating with the breathing space. The external air flow enters the breathing space through the air supply assembly 52 and the air supply duct 54 for the user to breathe, and meanwhile, the air exhaled by the user can be exhausted to the outside through the air outlet 12 on the frame 10. Therefore, the air in the breathing space can be kept fresh, and the user can breathe smoothly.

Further, the protective mask 100 further includes an air outlet filter 70, and the air outlet filter 70 is disposed at the air outlet 12 to filter the airflow exhausted from the breathing space, so as to prevent viruses and the like in the airflow exhaled by the user from entering the external environment, and purify the airflow exhausted from the breathing space to the outside.

In other embodiments, an air outlet portion is disposed on a side of the frame 10 opposite to the mask body 30, and an air outlet channel for communicating the breathing space with the outside is defined between the air outlet portion and the face of the user. Equivalently, reserve certain gap and form the air-out passageway between framework and user face, after outside air got into the breathing space under the drive of air supply subassembly, increased the pressure of breathing space, the air accessible in the breathing space discharged with the air-out passageway of outside intercommunication, and outside air can't get into the breathing space from the air-out passageway under the pressure differential effect, so accessible air-out passageway one-way air-out keeps in time letting in fresh air in the breathing space. It should be understood that the frame 10 can be in sealed contact with the face of the user, and the air can be exhausted by opening the air outlet 12 on the frame 10 as in the above embodiments, and the exhaust position is not limited herein.

In the protective mask 100 provided by the present invention, the mask body 30 is assembled on the frame body 10, and at least a part of the mask body 30 is made of a transparent sound transmission material, so that the mask body 30 can transmit the sound wave of the user speaking to the outside, and the user can talk with other people, thereby improving the convenience of the protective mask 100. In addition, the protective mask 100 further includes an air supply mechanism 50, and the air supply mechanism 50 can supply external air flow into the breathing space to provide fresh air for the breathing space. In addition, the air supply mechanism 50 can directionally supply the external air to the nasal inhalation part of the user, so that the user can breathe the air more smoothly.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A protective mask, comprising:

a frame body having a mounting location;

2. A face shield according to claim 1, wherein the mask body has a breathing zone corresponding to the nose and mouth of the user, the breathing zone being configured to flex outwardly relative to the breathing space.

3. A face shield according to claim 1, wherein the supply air duct includes a main duct and two branch ducts, the main duct communicating with the supply air assembly, the two branch ducts communicating with the main duct;

wherein, two branch pipelines stretch into breathe the space, just two snuffing holes of user's snuffing portion are faced respectively to the direction of giving vent to anger of two branch pipelines.

4. A face shield according to claim 2, wherein each of the branch conduits includes a first branch conduit, two of the two branch conduits are connected to the main conduit, and two ends of the two first branch conduits, which are opposite to the main conduit, respectively extend in directions away from each other; every the small transfer line still includes second small transfer line, every the second small transfer line includes the link and the free end of mutual intercommunication, every the link with first small transfer line dorsad the one end of trunk line is connected, two of second small transfer line two the free end is to the direction slope that is close to each other to respectively towards two snuffing holes of user's snuffing portion.

5. A face shield according to claim 2, wherein the main conduit is connected to the air supply assembly at both ends, and the main conduit has an air distribution section disposed around the face of the user, and the two branch conduits are disposed on the air distribution section.

6. A face shield according to any one of claims 1-4, wherein the air supply assembly is mounted on the frame; or

The air supply assembly is separated from the frame body.

7. The face shield according to any one of claims 1-4, wherein the frame body is provided with an air outlet communicated with the breathing space.

8. A face shield according to any one of claims 1-4, wherein an air outlet portion is provided on a side of the frame body facing away from the mask body, and an air outlet passage communicating the breathing space with the outside is defined between the air outlet portion and the face of the user.

9. A face shield according to any one of claims 1-4, wherein the shield body is at least partially made of a transparent sound-transmitting material.

10. A face shield according to claim 9, wherein the mask body is removably coupled to the frame; or

The cover body is connected with the frame body in a sealing mode.