TW201706012A - Mask - Google Patents

Abstract

The invention discloses a mask, which comprises a mask body, a circular airbag and an engaging ring. The mask body defines an opening on a front side of the mask body and a mask hole on a rear side of the mask body. The retaining ring is flexible and removably mounted on the rear side of the mask body to make the circular airbag fixed in the mask hole of the mask body.

Description

Mask

The present invention relates to a mask such as a respiratory mask, a filtering mask or a gas mask, and more particularly to a structural design of an exhaust device, an air intake filter device, and an annular airbag for contacting a face, which are provided on such a mask.

Conventional masks are more common with respiratory masks and gas masks. The former is used to assist patients in breathing, such as oxygen masks or medical respiratory masks, while the latter is used to filter harmful substances in the air or environmental pollutants, such as spray paint. Workers need to wear a gas mask to filter toxic substances. Regardless of the type of mask, it is necessary to consider the comfort of the user wearing the mask. For example, a conventional breathing mask 4 shown in Fig. 15 is provided with an annular airbag 42 on the rear side of a cover 41. Touch the user's face to provide a soft, comfortable touch to the user. However, since the annular airbag 42 is adhered to the cover 41 or integrally formed with the cover 41 and does not have a detachable function, as long as the annular airbag 42 is in a bad situation such as air leakage, deformation, damage, or excessive adsorption. When the bacteria, viruses, environmental pollutants, etc. are suspected, the entire breathing mask 4 needs to be discarded and waste.

Furthermore, for a gas mask or a filter mask having an air filtering effect, a diaphragm type one-way valve is usually provided at a portion of the exhaust port to allow the user to discharge the gas outward and block the outside. The air enters (the outside air is sucked into the mask through the air intake filter of the mask), so the user needs to maintain a certain exhalation force to push the one-way valve. However, the user's exhalation force is difficult to maintain. Consistent, especially in a weak condition, there is often a situation in which the one-way valve is not fully pushed open, resulting in too much residual gas, affecting the freshness of the air inside the mask, and it is difficult to ensure that the user can breathe fresh. air.

In addition, the intake filter device itself usually forms for the inhaled air. A certain resistance affects the smoothness of the user's inhalation.

Therefore, the conventional mask has at least the above problems to be solved.

The present invention provides a new mask which solves the problem that in the past, once the airbag has a problem, it needs to be discarded together with the mask to form a waste. More specifically, the mask of the present invention includes a cover, an annular balloon, and an engagement ring. The annular airbag is fastened by a snap ring having elasticity to a cover of the cover for contacting the face of the user.

Preferably, the inner wall surface of the cover of the cover body defines a ring groove, and the outer edge of the snap ring is engaged with the ring groove; the snap ring defines an annular card groove on the inner ring surface thereof, the ring The air bag is stuck in the annular card slot.

Preferably, the inner wall surface of the cover of the cover body defines an adjacent inner ring groove and an outer ring groove, the annular air bag is engaged in the inner ring groove, and the snap ring is stuck in the inner ring groove The outer ring groove blocks an outer edge of the annular air bag to prevent the annular air bag from falling out of the cover of the cover.

The invention also provides a new mask which can reduce the burden on the user's exhalation and ensure that the user can suck the fresh air, and includes a cover body, an exhaust device, an exhaust valve and an exhaust module. The venting device is connected to the hood, and the venting valve is disposed in the hood or the venting device to prevent outside air from entering the hood, and the exhaust module is disposed in the venting device A micropump having a suction passage, a discharge passage, and a connection therebetween, the micropump capable of drawing in and out of the suction passage from the suction passage to the outside of the cover. Preferably, the mask of the present invention further comprises the above-mentioned annular airbag, snap ring and the like, thereby having the characteristics of a replaceable annular airbag. More preferably, the exhaust device is further provided with a side passage directly through the suction passage and a discharge passage, and the bypass passage can be opened or closed, and the bypass passage can be used when the user does not use the exhaust module. Opened, the gas exhaled by the user is directly discharged to the outside of the cover through the suction passage, the bypass passage and the discharge passage.

The present invention further provides a new face mask that is convenient to be disassembled and assembled, comprising a cover body, a joint seat, at least one air intake filter device and an intake valve, wherein the joint seat has elasticity and is engaged with the cover body. An air inlet port is defined and has an engaging groove; the combined pipe of the air intake filter device is inserted into and locked in the engaging groove of the coupling seat; the intake valve is disposed in the cover body or the air intake filter device Internally, the gas in the cover body is prevented from being discharged to the outside of the cover body through the air intake filter device. Preferably, the mask of the present invention further has a flow guiding passage disposed inside the air intake filter device, and an end of the flow guiding passage away from the cover body is gradually curved toward an end close to the cover body. Shrinking and tilting are used to smoothly guide the inhaled air into the cover body, thereby reducing the burden on the user to inhale. More preferably, the mask of the present invention further includes the above-mentioned annular airbag, snap ring and the like, thereby having the characteristics of a replaceable annular airbag.

Compared with the prior art, the above-mentioned mask of the present invention solves the problem of waste of having to discard the entire mask once the airbag has a problem in the past, by the simple disassembly and assembly structure formed by the above-mentioned engaging ring or the like. Furthermore, the mask of the present invention can effectively reduce the burden on the user to inhale by the above-mentioned flow guiding channel. Further, the above-described mask of the present invention is also effective in reducing the burden on the user's exhalation by the above-described exhaust module, and ensuring the freshness of the air inside the mask.

Other inventive aspects and more detailed technical and functional descriptions of the present invention are disclosed in the following description.

1‧‧‧ mask

11‧‧‧ Cover

110, 310‧‧‧ Cover

111‧‧‧Circle

112‧‧‧ openings

113‧‧‧air inlet

12‧‧‧Airbag

121‧‧‧Inflatable valve

13‧‧‧Card ring

131‧‧‧Ring card slot

14‧‧‧Exhaust device

141‧‧‧Exhaust valve

142‧‧‧Exhaust module

143‧‧‧bypass

14a‧‧‧ hole

14b‧‧‧Connecting tube

142a‧‧‧Inhalation channel

142b‧‧‧Drainage channel

15‧‧‧Air intake filter

151‧‧‧ Combined tube

152‧‧‧Intake valve

153‧‧ ‧ Diversion channel

15a‧‧‧ hole

16‧‧‧ joint

160‧‧‧through hole

161‧‧‧ snap groove

2‧‧‧ mask

21‧‧‧ Cover

210‧‧‧air inlet

211‧‧‧Circle

22‧‧‧Airbag

23‧‧‧Card ring

231‧‧‧Ring card slot

3‧‧‧ mask

31‧‧‧ Cover

311‧‧‧ Inner ring groove

312‧‧‧ outer ring groove

32‧‧‧Airbag

33‧‧‧Kelly ring

4‧‧‧ mask

41‧‧‧ mask body

42‧‧‧Airbag

M‧‧‧Micropump

The first figure is a schematic perspective view of a first embodiment of the mask of the present invention.

The second figure is a perspective view of another perspective view of the mask of the first figure.

The third figure is a perspective exploded view of the mask of the second figure.

The fourth figure is a perspective view of a further perspective view of the first embodiment of the mask of the present invention.

The fifth figure is a perspective exploded view of the mask of the fourth figure.

The sixth drawing is a schematic cross-sectional view taken along line VI-VI of the fourth figure.

The seventh drawing is a schematic cross-sectional view taken along line VII-VII of the fourth drawing.

Figure 8 is a perspective view of a second embodiment of the mask of the present invention.

The ninth drawing is a perspective view of another perspective view of the mask of the eighth figure.

The tenth figure is a perspective exploded view of the mask of the ninth figure.

The eleventh figure is a schematic cross-sectional view taken along line XI-XI of the eighth figure.

Fig. 12 is a perspective view showing the appearance of a third embodiment of the mask of the present invention.

Figure 13 is a perspective exploded view of the mask of Figure 12.

Fig. 14 is a schematic cross-sectional view taken along line XII-XII of Fig. 12.

The fifteenth figure shows a conventional mask.

The first to seventh figures show a mask 1 of a first preferred embodiment of the present invention. In the present embodiment, the mask 1 is a filtering mask or a gas mask for filtering harmful substances or environmental pollutants in the air. The first, second and fourth figures show a three-dimensional appearance of the mask 1 at different viewing angles. The mask 1 comprises a cover 11, an annular airbag 12, an engaging ring 13, and an exhaust device 14 located at the center of the outer side of the cover 11. And an air intake filter device 15 located on both sides of the exhaust device 14.

Referring to the third figure, the cover 11 is made of a first material which is rigid and gas-tight. The first material is preferably a rigid non-foamed plastic material. In this embodiment, polycarbonate (Polycarbonate) is used. Or fiberglass, but not limited to this. The annular airbag 12 is made of a second material which is soft and has good airtightness. The second material is preferably a soft non-foamed plastic such as polyvinyl chloride or ethylene/vinyl acetate copolymer. Ethylene vinyl acetate or silicone rubber, etc., in this embodiment, silicone rubber is used, but not limited thereto. In addition, in the present embodiment, an annular valve 12 is provided with an inflation valve 121 for supplemental gas, but not limited thereto. In other examples, the annular balloon 12 can be selectively designed to be completely sealed. The inflation valve 121 is not provided. The snap ring 13 is made of a third material having a hardness between the hardness of the first material and the hardness of the second material, and is a non-foamed plastic material having elasticity, in the present embodiment. In the case, thermoplastic rubber is used, but not limited thereto.

Referring to the third and seventh figures, the cover 11 defines a cover 110 on the rear side thereof, and the engagement ring 13 is detachably mounted on the rear side of the cover 11 for engaging the annular airbag 12 in the cover. The inside of the cover 110 of the body 11. More specifically, in the embodiment, the inner wall surface of the cover 110 of the cover 11 defines a ring groove 111, and the outer edge of the engaging ring 13 is caught in the ring groove 111, and the engaging ring 13 is therein. An annular card slot 131 is defined in the ring surface, and the annular air bag 12 is snapped into the annular card slot 131. As shown in the seventh figure, the annular card slot 131 is an arcuate groove having a partial cross-sectional shape corresponding to the annular air bag 12, so that the annular air bag 12 is caught in the circular arc groove 131 when the two are in contact with each other. Face as close as possible.

Referring to Figures 5 and 7, the cover 11 defines an opening 112 on its front side and two air inlets 113 defined on both sides. The exhaust device 14 is connected to the opening 112 of the cover body 11, and the two air intake filter devices 15 are connected to the two air inlets 113. The foregoing connection manner can be screwed, fastened or Other ways. For example, the mask 1 further includes two coupling seats 16 that are engaged in the two air inlets 113 of the cover 11 and the air intake filter device 15 is connected to the air inlet 113 by the coupling seat 16. More specifically, the two coupling seats 16 each define a through hole 160 and an engaging groove 161 surrounding the through hole 160. The coupling seat 16 is made of an elastic non-foaming plastic material, in this embodiment. Thermoplastic rubber is used in the middle, but not limited to this. Preferably, the air inlet 113 is slightly smaller than the coupling seat 16 so that the resilient coupling seat 16 is tightly inserted into the air inlet 113, so that the air inlet 113 has no leakage concerns, as shown in the sixth figure. Each of the two air inlet filter devices 15 is provided with a coupling tube 151 which is inserted into the engagement groove 161 of the two coupling seats 16 to be engaged. Preferably, the engaging groove 161 is smaller than the wall thickness of the joint pipe 151 of the air intake filter device 15, and the joint pipe 151 and the engaging groove 161 are as close as possible to each other by the elasticity of the joint seat 16 itself, as in the sixth. The figure shows. Through the above arrangement, the two coupling seats 16 are directly inserted into the corresponding air inlets 113, and the two air inlet filtering devices 15 are directly inserted into the coupling seat 16, so that the coupling seat 16 and the air inlet filtering device 15 are easily disassembled, assembled, and loaded. After good, the airtightness can be maintained, and the outside air is prevented from infiltrating into the cover 11 without the air intake filter device 15.

Referring to FIG. 5 and FIG. 7 again, the exhaust device 14 has a connecting tube 14b and a plurality of holes 14a. The inside of the exhaust device 14 can be selectively provided with a simple filter material (not shown). Preferably, the connecting tube 14b is screwed. The cover body 11 is connected to the cover body 11 by a combination of the tube 151 and the coupling seat 16 , for example, but not limited thereto. Thus, the gas in the cover 11 can be discharged to the outside via the connecting pipe 14b, the filter material, and the hole 14a. Referring to FIGS. 5 and 6 again, the two air intake filter devices 15 have a plurality of holes 15a, and have a filter material and/or an absorbing material (not shown) inside, and the absorbing material may be selected from activated carbon or other adsorbable environmental pollutants. The toxic substance or the toxic substance, the air sucked from the outside is filtered by the filter material and/or the absorbing material of the two air intake filter devices 15, and then passes through the joint pipe 151 and the joint seat 16 to enter the cover body 11.

As shown in the sixth figure, the mask 1 further includes an intake valve 152 and a flow guiding passage 153. The intake valve 152, which is only shown schematically, may be a diaphragm type one-way valve that allows only outside air to enter the enclosure 11 and does not allow gas within the enclosure 11 to exit the enclosure 11. The intake valve 152 may be optionally disposed in the cover body 11, but may alternatively be disposed at a position inside the air intake filter device 15 near the cover body 11, for example, in the inner tube 151, so that it is sucked into the air intake filter device 15 to flow through the air. After the filter material and/or the absorbing material, it flows into the hood 11 unidirectionally via the intake valve 152 to become a cleaner air supply to the user. Furthermore, only the flow guiding channel 153 shown in the schematic diagram is disposed in the air intake filter device 15 and has two opposite ends, and the inner wall surface of the flow guiding channel 153 is away from the cover body 11 The end is gradually retracted and inclined in an arc toward the end of the cover 11, and generally forms a funnel shape or a trumpet shape. Thus, the air coming in from the outside is smoothly guided into the inside of the cover 11 after being filtered by the filter material and/or the absorbing material of the two air intake filter devices 15, thereby reducing the resistance of the air intake filter device 15 to the sucked air. To improve the smoothness of the user's inhalation.

The seventh figure shows that the mask 1 further includes an exhaust valve 141. The exhaust unit 14 further has an exhaust module 142. Preferably, the exhaust unit 14 also has a bypass passage 143 therein. The exhaust valve 141, which is only schematically shown, may be a diaphragm type check valve that allows only the gas in the casing 11 to exit the outside of the casing 11, and does not allow outside air to enter the casing 11. The exhaust valve 141 may be optionally disposed within the cover 11, as shown in the figures, but may alternatively be disposed at a location within the exhaust 14 adjacent the cover 11. The exhaust module 142, which is only schematically shown, includes a suction passage 142a, a discharge passage 142b, and a micropump M that connects the two. The suction passage 142a and the discharge passage 142b are formed in a flared shape or a funnel shape in the figure, but the specific form is not limited thereto, and the focus is that one end of the former is connected to a suction port (not shown) of the micropump M and communicates with the connecting pipe 14b. One end of the latter is connected to a row of outlets (not shown) of the micropump M and communicates with the holes 14a. The gas exhaled by the user in the cover 11 can be discharged to the outside of the cover 11 via the exhaust valve 141, the suction passage 142a, the discharge passage 142b, and the hole 14a by the pumping operation of the micropump M. Through the arrangement of the exhaust module 142, the gas exhaled by the user in the mask 1 can be automatically discharged to the outside of the mask 1, and the air in the cover 11 can be kept fresh and the burden on the user's exhalation can be reduced. According to the concept, an air intake module (not shown) similar to or similar to the exhaust module 142 may be added to the air intake filter device 15 to assist the user to inhale to reduce the inhalation. The burden.

The bypass passage 143 directly penetrates the suction passage 142a and the discharge passage 142b to form an exhaust passage bypassing the micropump M. A gate (not shown) is disposed in the bypass channel 143. The exhaust device 14 is provided with a control member (not shown) for allowing the user to control the gate to be opened or closed, and the setting allows the user to control the miniature Pump M opens and closes the switch. When the micropump M is turned on and the gate is closed so that the bypass passage 143 does not conduct the suction passage 142a and the discharge passage 142b, the gas exhaled by the user in the cover 11 can be forcibly discharged to the cover by the micropump M. Outside of 11, ensure that the air inside the cover 11 is fresh. If the user thinks that the micropump M is not required to be turned on, the gate is opened to allow the bypass passage 143 to open the suction passage 142a and the discharge passage 142b. At this time, the gas exhaled by the user in the cover 11 can pass through the bypass passage 143. The discharge passage formed by the passage 142a, the discharge passage 142b, and the hole 14a is discharged to the outside of the cover 11. In this embodiment In this case, the user can choose to use the micropump M to assist the exhaust according to his needs, or choose to use the bypass channel 143 from the main exhaust.

8 to 11 show a mask 2 of a second preferred embodiment of the present invention. In the present embodiment, the mask 2 is a medical respiratory mask, and the above-described exhaust device 14 and air intake filter are not required. Related components such as device 15. 8 and 9 are schematic views showing the three-dimensional appearance of the mask 1. The mask 2 includes a cover 21, an annular air bag 22, an engaging ring 23, and an air inlet for connecting an oxygen tube (not shown). 210. In the present embodiment, the material selection and arrangement of the cover body 21, the annular air bag 22, and the engagement ring 23 are substantially the same as those of the face mask 1 in the first embodiment. The face mask 2 of the present embodiment only includes the mask of the foregoing embodiment. 1 is used in a respiratory mask, and the application of the mask structure of the present invention is not limited to the embodiment of the present invention. As shown in the tenth and eleventh figures, the cover body 21 defines a ring groove 211 on the inner wall surface of the cover opening 310, and the outer edge of the engaging ring 23 is caught in the ring groove 211. The snap ring 23 defines an annular card slot 231 on its inner ring surface, and the annular air bag 22 is snapped into the annular card slot 231.

12 to 14 show a mask 3 according to a third preferred embodiment of the present invention. In the present embodiment, the mask 3 is a medical respiratory mask, and the material, structure and function of the mask 3 are compared with the second one. The mask 2 of the preferred embodiment is substantially identical. The only difference is that the rear side of the cover 31 defines an adjacent inner ring groove 311 and an outer ring groove 312, and the engaging ring 33 is a flat ring body. When assembled, the annular air bag 32 is first placed in the inner ring groove 311, and the snap ring 33 then snaps into the outer ring groove 312 and blocks an outer edge of the annular air bag 32 to prevent the annular air bag 32 from being removed from the cover. The cover 310 of 31 falls out.

As can be seen from the description of the above embodiments, the mask of the present invention has a simple disassembly and assembly structure formed by the above-mentioned snap ring or the like, so that the cover body and the annular airbag can be disassembled and installed by the user as needed, so as to replace the new one. The annular airbag solves the waste problem that the entire mask must be discarded once the airbag has problems in the past. It is in line with the practical design of one of the environmental protection concepts. Furthermore, the mask of the present invention can smoothly guide the sucked air into the inside of the mask by the flow guiding passage provided in the air intake filtering device, thereby effectively reducing the burden on the user to inhale. In addition, the mask of the present invention also assists the user in exhausting by the exhaust module, thereby effectively reducing the burden on the user's exhalation and ensuring the freshness of the air inside the mask.

In any case, anyone can obtain sufficient teaching from the description of the above examples, and understand that the content of the present invention is indeed different from the prior art and has industrial applicability. And it is progressive. It is the invention that has indeed met the patent requirements and has filed an application in accordance with the law.

1‧‧‧ mask

11‧‧‧ Cover

12‧‧‧Airbag

13‧‧‧Card ring

14‧‧‧Exhaust device

15‧‧‧Air intake filter

Claims (11)

A mask comprising: a cover body defining an opening and a cover on the front side and the rear side thereof; an engaging ring having elasticity and being engaged in the cover opening of the cover body; and an annular air bag The card is stuck in the snap ring. The mask of claim 1, wherein an inner wall surface of the cover of the cover defines a ring groove, and an outer edge of the snap ring is engaged with the ring groove; the snap ring is in the inner ring surface thereof An annular card slot is defined on the ring, and the annular air bag is engaged in the annular card slot. The mask of claim 1, wherein the inner wall surface of the cover of the cover defines an adjacent inner ring groove and an outer ring groove, and the annular air bag is engaged in the inner ring groove. The snap ring is caught in the outer ring groove and blocks an outer edge of the annular air bag to prevent the annular air bag from falling out of the cover of the cover. The mask of claim 1, further comprising an exhaust device and an exhaust module, wherein the exhaust device is connected to the opening of the cover, and the exhaust module is disposed in the exhaust device And having a suction passage, a discharge passage, and a micropump connecting the two, the micropump capable of drawing in and out of the suction passage from the suction passage to the outside of the cover. The mask of claim 4, further comprising a side passage directly through the suction passage and the discharge passage, wherein the bypass passage is configurable to be opened or closed. The mask of any one of claims 1 to 5, further comprising a binding seat and an air intake filter device, wherein the binding seat is elastic and Engaged in an air inlet of the cover body and defined with an engaging groove; the air inlet filter device is fastened in the engaging groove of the joint seat. The mask of claim 6, further comprising a flow guiding channel disposed in the air intake filter device and having opposite ends, wherein the inner wall surface of the flow guiding channel is away from the cover body One end is gradually retracted and inclined in an arc toward an end close to the cover. A mask includes: a cover; an exhaust device coupled to the cover; and an exhaust module disposed in the exhaust device and having a suction passage, a discharge passage, and a connection therebetween A micropump capable of drawing gas from the suction passage into and out of the suction passage. The mask of claim 8 further comprising a side passage directly through the suction passage and the discharge passage, wherein the bypass passage is configurable to be opened or closed. A mask includes: a cover; a joint seat, an air inlet of the cover body, the joint is elastic and defines an engaging groove; and an air inlet filter device is fixed to the joint The snap groove. The mask of claim 10, further comprising a flow guiding channel disposed in the air intake filter device and having two opposite ends, the flow guiding channel The inner wall surface is gradually retracted and inclined from an end away from the cover toward an end close to the cover.