TW202206145A - Respiratory protective device having exhalation valve on upper-half transverse portion of face body including a face body and an exhalation valve - Google Patents

Abstract

A respiratory protective device having an exhalation valve on an upper-half transverse portion of a face body includes a face body and an exhalation valve. The face body includes an inner surface and an outer surface opposite to each other, and an opening passing through the inner surface and the outer surface. The exhalation valve includes a base and a cover. The base is mounted on the upper half portion of the face body and at the center position along a left-right direction, and is divided into an upper plate portion and a lower plate portion. The ratio of the area of the upper plate portion to the area of the lower plate portion is between 70% and 90%. The base has a valve assembly corresponding to the opening. The valve assembly is a one-way valve that allows airflow to pass through or prevents airflow from passing through the opening. The cover is connected to the base at the outer side of the face body and covers the valve assembly. The cover allows the airflow passing through the valve assembly to be discharged to the outside. Thereby, when the face body is in the shape of a bowl, the base has a shape narrow at the top and wide at the bottom, so that the exhalation valve can keep away from a lower eyelid without interference while the face body covers a nose bridge and protrudes outward along with the ridge of the nose bridge. When the face body is a flexible face body, the face body can be prevented from being torn and the damage rate can be reduced while the face body is supported by a partition unit to become a semi-rigid face body.

Description

Respiratory protective equipment with exhalation valve in the upper half of the face

The present invention relates to a respiratory protection device with an exhalation valve located in the middle part of the upper half of the face, in particular to a breathing protection device with an exhalation valve placed in the middle part of the upper half of the mask body due to specific requirements. For the respiratory protection equipment in the upper half of the horizontal center of the face, the so-called horizontal center refers to the central part in the left and right direction when it is worn on the face.

A conventional protective mask disclosed by SKOV ROMAN, the inventor of US Patent Publication No. US20160030778A1, US20150217146A1, and US20140345607A1, is mainly provided with an exhalation valve on the upper part of the molded rubber surface for The airflow inside the face body is quickly expelled to the outside world through the exhalation valve.

The invention illustrates the use of an inverted pentagon framed exhalation valve, but does not describe what kind of check valve is built in, or the features of the check valve. According to the prior art, only button-type check valves can be used, and other valve disc types may not be matched, so that their application is not wide enough. For example, it appears to be difficult to install a cantilevered check valve within its frame.

Therefore, the purpose of the present invention is to provide an exhalation valve installed in the middle part of the upper half of the face body and can provide a platform with a larger area for more types of exhalation valve devices to match the face body with an exhalation valve on the face. Respiratory protection for the upper half of the body.

Before installing the exhalation valve on the upper half of the mask body of the respirator, first learn about the structure of the upper half of the mask body by using a molded mask. Because the main body of the mask must conform to the bulge of the bridge of the nose and reduce the contact with the bridge of the nose and avoid interfering with the lower eyelid, the curvature of the part corresponding to the bridge of the nose of a general molded mask is larger than that of the part of the vertical equator. If you want to install a When the flat-bottomed accessories are located in this position, a platform needs to be formed to accommodate them, and the platform will have a shape that is narrow at the top and wide at the bottom. A similar structure is of course for a semi-rigid mask body.

Therefore, the present invention has a respiratory protection device with an exhalation valve in the upper half-transverse middle of the face, including a face and an exhalation valve.

The surface body includes an inner surface and an outer surface opposite to each other, and an opening passing through the inner surface and the outer surface.

The exhalation valve includes a base and a cover, the base is installed on the upper half of the surface and in the center along a left-right direction, and has a bottom plate that fits the surface and is opposite to the opening A valve group, the bottom plate has a longitudinal length of a base with the largest distance between an upper edge and a lower edge along an up-down direction, and defines a mid-section passing through the midpoint of the longitudinal length of the base of the base and perpendicular to the up-down direction, The middle section distinguishes the base into an upper plate portion and a lower plate portion, and the ratio of the area of the upper plate portion to the area of the lower plate portion is between 70% and 90%, so that the base has a shape that is narrow at the top and wide at the bottom. The valve group allows or prevents air flow through the opening, the cover is connected to the base on the outside of the surface body and covers the valve group, the area of the cover corresponding to the upper plate portion is an airtight part, and corresponding to the lower plate The area of the upper part is a ventilating part for the airflow passing through the valve group to be discharged to the outside world.

The effect of the present invention is that when the surface body is a molded bowl shape, or when the surface body is a flexible surface body and is supported by some elements such as a partition unit to become a semi-rigid surface body, it can be narrow in shape. The wide bottom plate enables the exhalation valve to fit in the upper half-transverse middle part of the surface body, and has a large bottom area for accommodating various types of valve discs.

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the present invention has a first embodiment of a respiratory protective device with an exhalation valve in the upper half-transverse middle of the face, which is suitable for wearing on the face and covering the face. A nose and a mouth include a body 1 and an exhalation valve 2 .

First, before installing the exhalation valve 2 on the upper half of the surface body 1 in the horizontal middle portion, the structure of the upper half of the surface body 1 is understood by using the molded bowl-shaped surface body 1 of this embodiment. Because the face body 1 must conform to the bulge of the bridge of the nose and reduce the contact with the bridge of the nose and avoid interference with the lower eyelid, therefore, the curvature of the part corresponding to the bridge of the nose in a general molded bowl mask is larger than the curvature of the part adjacent to the lips and the vertical equator Therefore, if a flat-bottomed fitting is to be installed in this position, a platform needs to be formed to combine the exhalation valve 2, and the platform will present a shape with a narrow top and a wide bottom. In addition, there is a similar structure for a semi-rigid surface of course.

In this embodiment, the surface body 1 is in the shape of a molded bowl, and includes an inner surface 11 and an outer surface 12 opposite to each other, and penetrates through the inner surface 11 and the outer surface 12 and is located on the upper half of the surface body 1 An opening 13 of the part. The curvature of the surface body 1 along a left-right direction X corresponding to the bridge of the nose is larger than the curvature of the vertical middle equator, and defines a platform 17 surrounding the opening 13 and showing a shape of upper narrow and lower wide. The so-called vertical center above refers to the central part in the vertical direction when worn on the face, and the so-called equator refers to the hemispherical shape of the surface body compared to the position of the earth away from the south and north poles.

The exhalation valve 2 includes a base 21 and a cover 24 .

The base 21 is installed on the upper half of the surface body 1 at the center position along the left-right direction X, and has a bottom plate 22 connected to the platform 17 and a valve group 23 corresponding to the opening 13 .

The shape of the bottom plate 22 is symmetrical along the left-right direction X, and has a base longitudinal length 223 along an up-down direction Z with the largest distance between the upper edge 221 and the lower edge 222, and defines the center of the base longitudinal length 223 passing through the base 21 It is a mid-section 224 that is perpendicular to the up-down direction Z of the surface body 1 . The middle section 224 divides the bottom plate 22 into an upper plate portion 225 and a lower plate portion 226 . The upper edge 221 has a circular arc segment 227 . The diameter of the arc segment 227 is greater than 2/3 of the length 223 of the base. In this embodiment, the ratio of the area surrounded by the edge of the upper plate portion 225 of the bottom plate 22 to the area surrounded by the edge of the lower plate portion 226 is between 70% and 90%, so that the base 21 fits the surface body 1 . The platform 17 is narrow at the top and wide at the bottom.

Referring to FIG. 1 , FIG. 4 and FIG. 5 , the valve block 23 has a valve port 231 and a valve disc 232 . The valve port 231 is surrounded by the bottom plate 22 and communicates with the opening 13 . The valve flap 232 can openably cover the bottom plate 22 to allow or prevent airflow through the opening 13 .

In this embodiment, most of the valve port 231 is located on the upper plate portion 225 of the bottom plate 22 , the valve flap 232 is cantilever type, and has a plate portion 226 fixed on the bottom plate portion 226 of the bottom plate 22 and located on one side of the valve port 231 . A fixed portion 233 and a cover portion 234 openably covering the valve port 231 . It should be noted that the valve flap 232 is not limited to a cantilever type, in other embodiments, it can also be a button type and a circular shape, and is fixed on the bottom plate 22 at the center of the circle, and can be opened at the circumferential position to cover the valve port 231 .

The cover 24 is connected to the base 21 at the outer side of the surface body 1 and covers the valve group 23, and the area corresponding to the upper plate portion 225 and the covering portion 234 of the valve flap 232 is an airtight portion 241, corresponding to the The area between the lower plate portion 226 and the fixing portion 233 of the valve flap 232 is a ventilation portion 242 . The air-impermeable part 241 is continuous without perforations, and the air-permeable part 242 has several through holes 243 for air flow to pass through.

Referring to Figure 1, Figure 3 and Figure 5, when a person inhales through the mouth or nose, the air flow from the outside will pass through the face body 1 to provide the person's inhalation needs. When a person exhales exhaust gas through the nose or mouth , the inner side of the surface body 1 will pass through the surface body 1 and the other part will pass through the valve port 231 of the base 21 due to the positive pressure generated by exhalation, and push the covering portion 234 of the valve flap 232 to open the valve port 231 .

At this time, the airflow entering between the base 21 and the cover 24 will flow from between the covering portion 234 and the air-impermeable portion 241 to the air-permeable portion 242 under the condition of being blocked by the air-impermeable portion 241 . The exhaust is then exhausted to the outside through the through holes 243 . Thereby, the exhaust gas can be discharged quickly, the exhalation pressure can be reduced, and the exhaled droplets can be blocked by the air-impermeable part 241 and cannot be directly discharged with the air flow.

It is important that the base 21 with a narrow top and a wide bottom allows the exhalation valve to fit on the narrow and wide platform 17 above the upper half-transverse middle of the surface body 1 and has a larger bottom area. For accommodating various types of valve flaps 232, and under the condition that the face body 1 covers the bridge of the nose and protrudes with the spine of the bridge of the nose, the exhalation valve 2 can be avoided without interfering with the lower eyelid. In addition, it is worth noting that the surface body 1 is not limited to a molded bowl shape. In other variations of this embodiment, as shown in FIG. 6 , it can also be a flexible surface body 1 that can be folded into a flat surface. Construct, or stretch out a three-dimensional structure.

In addition, the exhalation valve 2 is not limited to only be combined with the surface body. In other variations of this embodiment, as shown in FIG. 7 and FIG. 8 , it can also be used to connect a partition unit 3, and the partition unit 3 abuts against It is used to divide the interior of the face body 1 into an upper air chamber 311 and a lower air chamber 312 at the upper position of the wearer's nose and mouth.

In a variation of this embodiment, as shown in FIG. 6 , the surface body 1 can be folded into a plane structure or a three-dimensional structure by being stretched, and further includes several folds 14 in a Z shape (see FIG. 6 ). Each corrugation 14 extends along the left-right direction X of the surface body 1 and is used to stretch the surface body 1 along the up-down direction Z. The surface body 1 defines a boundary line L that divides the surface body 1 into a first part 15 and a second part 16 , the first part 15 and the second part 16 can be folded into a plane, and expanded into a three-dimensional structure. In this embodiment, the boundary line L equally divides the surface body 1 and does not intersect the boundary line L. As shown in FIG. It should be noted that the boundary line L extends along the curvature of the surface body 1 .

Most of the valve port 231 of the exhalation valve 2 is located on the upper plate portion 225 of the bottom plate 22 , and the lower plate portion 226 has an abutting edge 228 formed on one side of the valve port 231 . It is located on the upper plate portion 225 side of the abutting edge 228 .

The partition unit 3 is detachably connected to the abutting edge 228 of the lower plate portion 226 of the base 21 .

Therefore, when the surface body 1 is a flexible surface body, it can be supported by the bottom plate 22 of the base 21 and the partition unit 3 to become a semi-rigid surface body. The face body 1 is combined with the bottom plate 22 and applied to the dividing unit 3, and then the pressure applied to the face by the dividing unit 3 is reduced, and the pressure is retained in the opening of the original face body 1 to press the face and face, and further improve The airtight effect of the face body 1 and the face.

Through the above description, the advantages of the foregoing embodiments can be summarized as follows:

The base 21 of the present invention is designed with a narrow top and a wide bottom, so that the exhalation valve 2 avoids and does not interfere with the lower eyelid under the condition that the face body 1 covers the bridge of the nose and protrudes with the spine of the bridge of the nose, which is not only suitable for Molding the bowl-shaped surface body 1 can make the exhalation valve fit on the narrow and wide platform 17 above the upper half-transverse middle part of the surface body 1, and has a large bottom area for accommodating various types of valve discs. 232; suitable for when the surface body 1 is a flexible surface body, it can be supported by the bottom plate 22 of the base 21 and the partition unit 3 to become a semi-rigid surface body, which can reduce the pressure exerted by the partition unit 3 on the face, avoid The surface body 1 is torn apart to reduce the damage rate, and the pressure of the surface body 1 is retained at the opening of the surface body 1 to fit the face and enhance the airtight effect.

However, the above are only examples of the present invention, and should not limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the application for patent of the present invention and the content of the patent specification are still within the scope of the present invention. within the scope of the invention patent.

1: facet 11: inner surface 12: Outer surface 13: Opening 14: Wrinkles 15: Part One 16: Part II 17: Platform 2: Exhalation valve 21: Base 22: Bottom plate 221: Upper edge 222: Lower edge 223: base length 224: Mid Section 225: Upper Board 226: Lower Board 227: Arc segment 228: Abutment 23: Valve group 231: valve port 232: Disc 233: Fixed part 234: Covering Department 24: Cover 241: airtight part 242: Breathable part 243: Through hole 3: Separation unit 31: Clapboard 311: maximum vertical width 312: Upper air chamber 313: Lower air chamber 32: One-way valve group 321: air port 322: Membranous valve L: dividing line X: left and right direction Y: Front and rear direction Z: up and down direction

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: 1 is an exploded perspective view illustrating a first embodiment of a respiratory protective device having an exhalation valve in the upper half-transverse middle portion of the face of the present invention; Fig. 2 is a perspective cross-sectional view of a body in the first embodiment; 3 is a perspective cross-sectional view of a base in the first embodiment; 4 is a perspective view of the first embodiment; 5 is a cross-sectional view of the first embodiment; FIG. 6 is a perspective view illustrating a variation of a body in this embodiment; FIG. 7 is an incomplete exploded perspective view illustrating a second embodiment of the respiratory protection apparatus having an exhalation valve in the middle of the upper half of the plane of the present invention; and Figure 8 is a cross-sectional view of the second embodiment.

1: facet

12: Outer surface

13: Opening

17: Platform

2: Exhalation valve

21: Base

22: Bottom plate

221: Upper edge

222: Lower edge

225: Upper Board

226: Lower Board

227: Arc segment

23: Valve group

231: valve port

232: Disc

233: Fixed part

234: Covering Department

24: Cover

241: airtight part

242: Breathable part

243: Through hole

X: left and right direction

Y: Front and rear direction

Z: up and down direction

Claims (10)

A respiratory protection device with an exhalation valve in the middle part of the upper half of a face, comprising: a body, including an inner surface and an outer surface opposite to each other, and an opening passing through the inner surface and the outer surface; An exhalation valve, including a base and a cover, the base is installed on the upper half of the surface and at the center position along a left-right direction, and has a valve group corresponding to the opening, and along an upper and lower A base with the largest distance between the upper edge and the lower edge is longitudinally long, and defines a mid-section passing through the midpoint of the longitudinal length of the base of the base and perpendicular to the up-down direction, and the mid-section distinguishes the base as an upper plate portion Compared with the lower plate portion, the ratio of the area of the upper plate portion to the area of the lower plate portion is between 70% and 90%, so that the base has a shape that is narrow at the top and wide at the bottom. The valve group allows or prevents airflow through the opening. The cover is connected to the base at the outer side of the surface body and covers the valve group. The area of the cover corresponding to the upper plate is an airtight part, and the area corresponding to the lower plate is a breathable part for passing through the The air flow from the valve block is exhausted to the outside. The respiratory protection device with the exhalation valve in the upper half-transverse middle part of the surface according to claim 1, wherein the upper edge of the base of the exhalation valve has a circular arc segment, and the diameter of the circular arc segment is larger than that of the base 2/3 of the length. The respiratory protection device with the exhalation valve in the upper half-transverse middle part of the face body according to claim 1, wherein the shape of the base of the exhalation valve is symmetrical along the left-right direction. The respiratory protection device with the exhalation valve in the upper half-transverse middle part of the face according to claim 1, wherein the air-impermeable part of the cover is continuous without perforations, and the breathable part of the cover has at least one through hole. The respiratory protection device with the exhalation valve in the upper half-transverse middle part of the face body according to claim 1, wherein the face body is a molded bowl shape. The respiratory protection device with an exhalation valve in the upper half-transverse middle part of the surface as claimed in claim 1, wherein the valve group has a valve port and a valve flap, and the valve port is surrounded and defined by the bottom plate and communicated with the The opening, the valve flap is cantilever type, and has a fixed part fixed on the lower plate part of the bottom plate and corresponding to the ventilating part and located on one side of the valve port, and can openably cover the valve port and corresponding to the airtight part part of a covering part. The respiratory protection device with the exhalation valve in the upper half-transverse middle part of the face body as claimed in claim 1, wherein the lower plate portion of the base has an abutting edge formed on one side, and the abutting edge is suitable for abutting On the inside of the surface body and the interior of the surface body is divided into an upper air chamber and a lower air chamber a separating unit abuts against, and the valve group has a valve port, the valve port is communicated with the opening, and is located at the abutting side. side of the upper plate. The respirator having an exhalation valve in the middle part of the upper half of the face body as claimed in claim 1, wherein the face body further defines a boundary that divides the face body into a first part and a second part, The first part and the second part of the surface body can be folded into a flat surface, and expanded into a three-dimensional structure when in use. The respiratory protection device with an exhalation valve in the upper half-transverse middle part of the surface body according to claim 8, wherein the base of the exhalation valve is installed at the first part of the surface body and at the center position along the left-right direction, and does not intersect the dividing line. The respirator with an exhalation valve in the middle part of the upper half of the face body as claimed in claim 8, wherein at least one of the first part and the second part of the face body comprises at least one fold, and the at least one of the first part and the second part of the face body comprises at least one A corrugation extends along the left-right direction.

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