CN212548012U - Breathing protection device and sealing element thereof - Google Patents

Abstract

The utility model relates to a respiratory protection device and respiratory protection device's sealing member, include: a mask body conformable to a nose region and an oral region of a wearer to define a breathable air region of the wearer, a harness for relatively securing the mask body to a face, the mask body having an interior side with a compressible seal conforming to the nose region and the oral region, the seal being in compression and abutting the skin of the wearer to divide the breathable air region into a breathing chamber and a support chamber when the mask body is secured to the face based on the harness. The utility model discloses even have gapped condition in human face and mask body's both sides, the sealing member is based on exhaling or breathing in and extension or compression, and form a respiratory cavity sealed relatively. The seal can effectively block air flowing into the support cavity from the gap out of the breathing cavity, and dangerous air is reduced to be inhaled by a wearer.

Description

Breathing protection device and sealing element thereof

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a respiratory protection device and respiratory protection device's facial sealing member.

Background

The mask is not only a daily necessity, but also a first line of defense required by medical staff for rescuing patients, so that the medical staff is prevented from being infected in an isolation area. The mask is made of fabric with a protection level so as to cover the nose, the mouth and the area nearby the nose and limit the breathable space area of the wearer, and due to the strict limitation of the manufacturing materials in the mask, harmful parts such as viruses and bacteria are separated by the mask fabric, so that the gas entering the breathable space area is generally sterile and nontoxic, and the protection effect is achieved.

For example, chinese patent publication No. CN204380026U discloses a sealed respiratory mask. It comprises a mask body covering the mouth and nose. The mask body is partially breathable. The inner wall of the mask body is fixedly provided with an air supply pipe, and two sides of the mask body are provided with fastening parts. The utility model discloses a wear in the head, fix overhead through the fastener, the face guard body covers human mouth nose position, and the air gets into the face guard body through the induction pipe after filtration purification, and the face guard body is local ventilative, and this internal clean air of face guard gathers gradually, forms certain malleation, and the outside is difficult to get into the face guard through the air that purifies in, ensures that the air that the user breathes all is through filtration purification's fresh air, is convenient for wash when induction pipe detachably connects.

However, when the mask is used, the clean air is fed into the mask by adopting an air feeding pipe, on one hand, the air feeding pipe needs certain conveying pressure due to small pipe diameter, so that certain requirements are provided for the lung suction of a wearer, and the mask cannot meet the requirement of people with insufficient lung suction; on the other hand, the mask is locally breathable, so that the heat dissipation of the wearer is not facilitated, the heat is suppressed in the mask, and the discomfort of the wearer is caused.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor studied a lot of documents and patents when making the present invention, but the space did not list all details and contents in detail, however, this is by no means the present invention does not possess these prior art features, but on the contrary the present invention has possessed all features of the prior art, and the applicant reserves the right to increase the related prior art in the background art.

SUMMERY OF THE UTILITY MODEL

To the deficiency of the prior art, the utility model provides a respiratory protection device, include: a mask body conformable to a nose region and an oral region of a wearer to define a breathable air region of the wearer, a harness for relatively securing the mask body to a face, the mask body having an interior side with a compressible seal conforming to the nose region and the oral region, the seal being in compression and abutting the skin of the wearer to divide the breathable air region into a breathing chamber and a support chamber when the mask body is secured to the face based on the harness. When the wearer inhales, the mask body is subjected to pressure towards the face of the person so that the breathing chamber is compressed, the seal is relatively compressed (this compression is not visible due to the inspiratory pressure), the breathing chamber and the support chamber are relatively isolated, and gas enters the breathing chamber only from the mask body to which the breathing chamber corresponds; while during exhalation by the wearer, the breathing chamber expands somewhat due to the sealing action of the seal and the blocking action of the mask body, with the seal relatively stretched (which is also not visible due to exhalation pressure effects), most of the gas is vented from the mask body to the atmosphere, and a small portion of the gas can escape via the support chamber.

The utility model discloses simple structure can be used for the both sides of face guard main part and human facial formation clearance, and leads to sealed not tight technical problem. The utility model discloses even have gapped condition in human face and mask body's both sides, the sealing member is based on exhaling or breathing in and extension or compression, and form a respiratory cavity sealed relatively. The seal can effectively block air flowing into the support cavity from the gap out of the breathing cavity, and dangerous air is reduced to be inhaled by a wearer.

In addition, because the colors of the inner side surface and the outer side surface of the existing mask are not large (especially a disposable medical mask), a wearer easily wears the mask reversely, so that the mask does not have the protection capability, and even the breathing of a patient is possibly not smooth. The setting of sealing member can indicate the wearing direction of wearer, can prevent effectively that it from wearing the gauze mask anti-sticking, has the fool-proof design effect.

In accordance with a preferred embodiment, the seal is securely attached to the mask body in a manner that defines the breathing chamber in a central region of the mask body.

According to a preferred embodiment, the wearing rope is connected to the support chamber on the basis of a division of the seal.

According to a preferred embodiment, the seal includes a nose patch section, a face patch section and a chin patch section, the nose patch section, the face patch section and the chin patch section being annularly configured to fit the face of the wearer such that the breathing chamber is a relatively airtight annular space.

In accordance with a preferred embodiment, the nose attachment section is integrally and smoothly connected to the face attachment section in a manner gradually moving away from the centerline of the mask body, and the face attachment section is integrally and smoothly connected to the chin attachment section in a manner gradually moving closer to the centerline of the mask body.

According to a preferred embodiment, the centerline of the mask body extends through the nose and chin panels.

According to a preferred embodiment, the width of the seal member increases as the nose patch extends toward the face patch; the width of the seal member becomes smaller as the facepiece section extends toward the chin section.

According to a preferred embodiment, the proportion of the area of the mask body occupied by the breathing chamber is greater than the proportion of the area of the mask body occupied by the support chamber.

According to a preferred embodiment, the present invention discloses a face seal for a respiratory protection device, which is securely attached to a mask body of the respiratory protection device, wherein the mask body is relatively fixed to the face based on a wearing strap, the seal is in a compressed state and is tightly attached to the skin of the wearer to divide the mask body into a respiratory cavity and a support cavity in a breathable air region defined by the face of the wearer.

According to a preferred embodiment, the seal is annularly configured to fit the face of the wearer such that the breathing chamber is a relatively airtight annular space.

Drawings

Fig. 1 is a preferred respiratory protection device provided by the present invention; and

fig. 2 is a preferred seal provided by the present invention.

List of reference numerals

100: the mask body 100 b: support cavity

200: wearing the string 300 a: nose patch

300: the seal 300 b: face patch section

100 a: breathing chamber 300 c: chin patch

Detailed Description

This is described in detail below with reference to fig. 1-2.

Example 1

The present embodiments provide a respiratory protection device. The respiratory protection device includes a mask body 100 and a harness 200. The wear strap 200 relatively secures the mask body 100 to the face of the wearer. The mask body 100 can fit over the nose and mouth regions of a wearer to define a breathable air zone for the wearer. The mask body 100 is breathable and has at least a protection rating of N95, such that the air entering the breathable air zone is safe air.

Currently, the mask body 100 is worn improperly against the wearer's face resulting in an untight seal such that the air in its breathable zone may still be at risk of infection. Through the observation after wearing the gauze mask to the wearer, face both sides have certain gap behind most of the wearer's gauze mask. Therefore, the utility model provides a following technical scheme to overcome the not enough among the prior art for the breathable zone of wearer has certain leakproofness, and this leakproofness means that gas is the pore business turn over from gauze mask body fabric, and not from having visible gap business turn over. As shown in FIG. 1, the inside of the mask body 100 has a compliant nose region and mouth region seal 300. The seal 300 is compressible. When the mask body 100 is relatively fixed to the face by the harness 200, the seal 300 is compressed and is pressed against the skin of the face of the wearer to divide the breathable air region into the breathing chamber 100a and the support chamber 100 b. When the wearer inhales, the mask body 100 is subjected to pressure towards the human face causing compression of the breathing chamber 100a, with the seal 300 relatively compressed (this compression is not visible due to the inspiratory pressure), with the breathing chamber 100a and the support chamber 100b relatively isolated, and gas only passes from the mask body 100 corresponding to the breathing chamber 100a into the breathing chamber 100 a; while during exhalation by the wearer, the breathing chamber 100a expands somewhat due to the sealing action of the seal 300 and the blocking action of the mask body 100, and the seal 300 stretches relatively (which is also not visible due to exhalation pressure effects), most of the gas is vented from the mask body 100 to the atmosphere, and a small portion of the gas can escape via the support chamber 100 b. The utility model discloses simple structure can be used for the both sides of face guard main part 100 and human facial formation clearance, and leads to sealed not tight technical problem. The present invention is formed in such a manner that the sealing member 300 is extended or compressed based on expiration or inspiration to form a relatively sealed breathing chamber 100a even when gaps are formed between the human face and both sides of the mask body 100. The seal can effectively block air flowing into the support cavity 100b from the gap from outside the breathing cavity 100a, reducing the risk of dangerous air being inhaled by the wearer.

In addition, because the colors of the inner side face and the outer side face of the existing mask are not large (especially a disposable medical mask), a wearer easily wears the mask reversely, so that the mask does not have the protection capability, and even the wearer possibly breathes unsmoothly. The setting of sealing member 300 can indicate the wearing direction of the person of wearing, can prevent effectively that it from wearing the gauze mask anti-sticking, has the design effect of preventing slow-witted.

Preferably, as shown in fig. 1, the seal 300 defines the breathing chamber 100a in a central region of the mask body 100 to conform to the facial configuration of a human body. Namely: when worn, the wearer's nasal midline is parallel to the midline of the breathing chamber 100 a. Also, the seal 300 is securely attached to the mask body 100. For example, the seal 300 can be glued to the mask body 100.

Preferably, as shown in fig. 1, the wearing string 200 is connected to the support cavity 100b based on the division of the sealing member 300. At this time, the mask body 100 corresponding to the support cavity 100b functions to relatively fix the mask body 100 to the face mainly by receiving the tensile force applied by the wearing string 200.

Preferably, the sealing member 300 is preferably made of a memory sponge, which can be fitted to the face according to different facial shapes, on the one hand, thereby forming a relatively airtight breathing chamber 100a with the mask body 100 and the face. Further, since the memory sponge also has a certain supporting function and corresponds to the supporting ribs, and supports the mask body 100 against the face, the thickness of the memory sponge is generally preferably in the range of about 2mm to 3 mm.

Example 2

This embodiment may be a further improvement and/or a supplement to embodiment 1, and repeated contents are not described again. The preferred embodiments of the present invention are described in whole and/or in part in the context of other embodiments, which can supplement the present embodiment, without resulting in conflict or inconsistency.

The present embodiment discloses a preferred seal 300. As shown in fig. 2, the seal 300 includes a nose patch 300a, a face patch 300b, and a chin patch 300 c. As shown in fig. 2, the nose, face and chin patches 300a, 300b, 300c are annularly configured to fit the face of the wearer such that the breathing chamber 100a is a relatively airtight annular space. Preferably, the nose, face and chin attachment sections 300a, 300b, 300c are integrally formed substantially pear-shaped (or may be substantially oval-shaped) seals 300 that conform to the face of the wearer.

Preferably, as shown in fig. 2, the nose attachment segment 300a is integrally and smoothly connected to the face attachment segment 300b in a manner gradually distant from the center line of the mask body 100. The seal 300 now extends from between the nose of the wearer to a position approximately 1-2 cm outside the corners of the mouth. And the face attachment section 300b is integrally and smoothly connected to the chin attachment section 300c in such a manner as to gradually approach the center line of the mask body 100. At this time, the sealing member 300 gradually draws from a position approximately 1 to 2cm outside the corner of the mouth to the chin.

Preferably, as shown in fig. 1 or 2, the centerline of the mask body 100 runs through the nose and chin patches 300a and 300 c.

Preferably, as shown in fig. 2, the width of the sealing member 300 becomes larger as the nose attachment 300a extends toward the face attachment 300 b. The width of the sealing member 300 becomes smaller as the face attachment section 300b extends toward the chin attachment section 300 c. Through flow analysis of gas in the mask and mechanical analysis of the mask, the mask near the mouth is easily penetrated by gas to form a gap because of no force bearing component, and therefore, the width of the face attachment section 300b is set to be larger in order to ensure the sealing performance.

Example 3

This embodiment may be a further improvement and/or a supplement to embodiment 1 or 2, and repeated contents are not described again. The preferred embodiments of the present invention are described in whole and/or in part in the context of other embodiments, which can supplement the present embodiment, without resulting in conflict or inconsistency.

Preferably, the proportion of the area of the mask body 100 occupied by the breathing chamber 100a is greater than the proportion of the area of the mask body 100 occupied by the support chamber 100 b. Preferably, the breathing cavity 100a occupies approximately 70% to 80% of the mask body 100. At this time, the respiratory cavity 100a is not easy to suppress pressure and heat, the comfort of the wearer is strong, and simultaneously, the breathing cavity also meets the one-time breathing amount or breathing amount of people.

Example 4

The present embodiment discloses a face seal for a respiratory protection device that is securely attached to a mask body 100 of the respiratory protection device. With the mask body 100 relatively secured to the face based on its fit cord 200, the seal 300 is in a compressed state and against the wearer's skin to divide the breathable air region defined by the mask body 100 and the wearer's face into a breathing chamber 100a and a support chamber 100 b.

Preferably, the seal 300 is annularly configured to fit the face of the wearer such that the breathing chamber 100a is a relatively airtight annular space.

It should be noted that the above embodiments are exemplary, and that those skilled in the art may devise various solutions in light of the present disclosure, which are also within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the present invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A respiratory protection device comprising:

a mask body (100) conformable to a nose region and a mouth region of a wearer to define a breathable air region of the wearer,

a wearing string (200) for relatively fixing the mask body (100) to the face,

it is characterized in that the preparation method is characterized in that,

the mask body (100) has a compressible seal (300) on the inside that fits the nasal and oral regions, and when the mask body (100) is secured relative to the face by the harness (200), the seal (300) is compressed and held against the wearer's skin to divide the breathable air region into a breathing chamber (100a) and a support chamber (100 b).

2. The respiratory protection device of claim 1, wherein the seal (300) is securely connected to the mask body (100) in a manner that defines the breathing chamber (100a) to a central region of the mask body (100).

3. Respiratory protection device according to claim 1 or 2, wherein the harness (200) is connected to the support cavity (100b) based on a division of the seal (300).

4. Respiratory protection device according to claim 1, wherein the seal (300) comprises a nose patch section (300a), a face patch section (300b) and a chin patch section (300c),

the nose patch section (300a), face patch section (300b) and chin patch section (300c) are annularly configured to fit the face of the wearer such that the breathing chamber (100a) is a relatively airtight annular space.

5. The respiratory protection device of claim 4, wherein the nose patch segment (300a) is integrally and smoothly connected to the face patch segment (300b) in a manner that gradually moves away from a centerline of the mask body (100), and the face patch segment (300b) is integrally and smoothly connected to the chin patch segment (300c) in a manner that gradually moves closer to the centerline of the mask body (100).

6. The respiratory protection device of claim 5, wherein a centerline of the mask body (100) runs through the nose patch (300a) and the chin patch (300 c).

7. Respiratory protection device according to any one of claims 4 to 6, wherein the width of the seal (300) increases during extension of the nose patch (300a) towards the face patch (300 b); the width of the sealing member (300) is reduced while the facelift section (300b) extends toward the chin section (300 c).

8. The respiratory protection device of claim 1, wherein a proportion of an area of the mask body (100) occupied by the breathing cavity (100a) is greater than a proportion of an area of the mask body (100) occupied by the support cavity (100 b).

9. A seal for a respiratory protection device that fastens to a mask body (100) of the respiratory protection device,

it is characterized in that the preparation method is characterized in that,

when the mask body (100) is relatively fixed to the face based on the wearing string (200), the seal (300) is compressed and pressed against the skin of the wearer to divide a breathable air region defined by the mask body (100) and the face of the wearer into a breathing cavity (100a) and a support cavity (100 b).

10. The seal of claim 9, wherein the seal (300) is annularly configured to fit the face of the wearer such that the breathing chamber (100a) is a relatively airtight annular space.

Images