CN211032969U - Full-face mask - Google Patents

Abstract

The utility model relates to a full-face mask, which comprises a mask body, a breathing tube, a non-reflexed isolated support part, at least one air inlet valve and at least one clapboard. The mask body is attached to the face of a user by a soft part to form an inner space. The breathing pipe is arranged on the mask body and communicated with the inner space. The non-reflexed isolation support part is arranged in the inner space and completely fits and covers the cheek and the nose of a user to define an upper space and a lower space. At least one air inlet valve is arranged on the non-reflexed isolated support part. There may be a flow deflector disposed in a channel. Therefore, the user can effectively suck air and discharge waste gas, and can further isolate the face from water leaking into the full-face mask, thereby avoiding danger.

Description

Full-face mask

[ technical field ] A method for producing a semiconductor device

The utility model relates to a full-face mask for underwater activities, in particular to a full-face mask for floating and diving, which can improve the safety.

[ background of the invention ]

Breathing apparatuses used in underwater sports have long used a Mask (Mask) separated from a breathing tube, wherein the Mask covers the eyes and nose in a sealed design, and the breathing tube is bitten by the mouth and is responsible for forcing the user to inhale and exhale air therethrough. In other words, the breathing apparatus for underwater sports at least comprises two parts, namely a "mask" and a "breathing tube", which not only causes trouble in carrying, but also is time-consuming and troublesome to wear because the fixed relationship between the two parts is also considered. In addition, in the aspect of use, the life style of breathing by mouth and nose is changed into forced breathing by mouth, and a method is needed to train running-in; especially when the mask or the breathing tube is carelessly supplied with water, the nose or the mouth needs to forcibly spit air and drain water, or the breathing tube is taken off and cleaned water is bitten again, the multiple actions are quite complex for users and are not easy to adapt, the users are more difficult to learn or fear water, the chance of water choking is increased, the safety is good, and the pleasure of leisure activities is greatly reduced.

In order to solve the above-mentioned troubles, a design combining a mask and a breathing tube into a single device has appeared in recent years, and the principle is that the mask covers the eyes, the nose and the mouth of a user when being worn, so that the three are completely isolated from the outside, and the breathing tube is directly arranged on the mask body and extends upwards. Because the components are simplified and the mask is convenient to carry, and because the mouth and the nose are all in the same space in the mask, a user can naturally breathe by the nose or the mouth and is close to the breathing habit in general life.

On the other hand, the air in and out is exchanged with the outside air by the breathing tube at the upper end of the face mask, the water in the face mask is easy to be discharged by the force of the mouth/nose of a user, the consideration of the need of discharging water by mouth or nasal cavity is not needed, the psychological pressure in use is reduced a lot, the receptivity is greatly improved for beginners or users who are afraid of water, and the theoretical safety is expected to be improved, so the air-breathing mask is widely welcomed by the snorkeling public.

The full-face mask (full-face mask) capable of simultaneously covering eyes, a nose and a mouth of a user has good design idea, but because the mouth and the nose are in the same space, if a channel for air inlet and outlet is not smooth, the water inlet blocking capability is not good, the drainage design is unstable, and the excessive ventilation caused by the carbon dioxide accumulation and dizziness, faint or anxiety caused by water accumulation in the mask is easy to cause, the danger caused by the excessive ventilation is higher than that of a separated design, because when the user feels that air cannot be sucked or a large amount of water is sucked due to the excessive carbon dioxide accumulation in the mask under the water surface, the separated design can be used for ventilation by a breathing pipe and the mask is separated from the drainage, and once the user meets the conditions when wearing the full-face mask, the drowning fate is threatened regardless of continuous wearing or complete removal, and the user faces a great danger. The following two news that the user drowned, the crisis hidden in the design of full face guard is highlighted promptly: 1. "Snorkeling safety and Potential crisis of New Full-Face Snorkel Masks" (https:// snorkels. net/Snorkeling-safety-New-force-headgear-furl-Face-Snorkel-Masks); and "start the survey of the full-face snorkel mask (Recent snorkel deaths and predictions in full-face snorkel masks)" from Recent snorkel sudden death (http:// www.ktvu.com/news/recovery-snorkel-deaths-probes-invasion-in-full-face-snorkel-masks).

The design defects caused by the risks are very subtle, and only a designer with great experience can know a little two after repeated tests, so that a common consumer has no ability to distinguish when buying until danger occurs during use, which is late. The design flaws of such masks are as follows:

first, as shown in fig. 1, the conventional full-face mask 100 has a partition 110 in its inner space and two air passages 116 surrounding the left and right sides of the full-face mask. The partition 110 defines an upper space 112 (or eye space) and a lower space 114 (or nose and mouth space), and two air passages 116 are used to connect the breathing tube (not shown) and the lower space 114.

This design calls for the gas circulation path to be: a) after flowing through the upper space 112, the fresh air inhaled from the upper respiratory tube will flow into the lower space 114 from the one-way valve 120 of the partition 110 for inhalation; b) the exhaust gas exhaled from the mouth and nose is exhausted from the lower portion of the full face mask 100 to the side check valve 140 and the breathing tube at the upper end through the two air passages 116 annularly disposed at the left side and the right side of the full face mask 100, and then exhausted to the outside.

In addition, the conventional full face mask 100 also claims that when water is drawn into the mask and accumulates in the lower space 114 of the mask, the user can increase the pressure inside the mask by only exhaling through a large orifice to discharge the accumulated water from the mouth check valve 130 disposed below the lower space 114.

This seemingly rational theoretical design, in effect, hides the extremely large flaws. Specifically, the conventional full face mask 100 is designed to have the separating portion 110 folded back in consideration of simple manufacturing process, wide adaptation to the face shape, and wearing comfort, but the design cannot be fully attached or covered on the cheek and nose of the user. That is, when wearing such a full face mask, there will be a lot of gaps between the separating part 110 and the cheek and nose of the user, because of the existence of these gaps, the air will not flow along the originally supposed path (i.e. clean air will flow from the upper space 112, through the separating part check valve 120 of the separating part 110, into the lower space 114; the exhaust air will flow upward through the air passage 116 to the breathing tube and the side check valve 140 to be discharged), and the actually clean air will flow into the lower space 114 directly through the gaps for the mouth and nose to inhale; accordingly, the exhaust gas exhaled from the mouth and nose will more easily flow back from the gap to the upper space 112 and out of the breathing tube.

Such air flow makes the separator check valves 120 disposed at both sides of the separator 110 not actually actuated because the separator check valves 120 need to be opened to a certain air flow rate, and when clean intake air has been allowed to enter the lower space 114 from the above gap, there is naturally not enough flow rate to open the separator check valves 120, which makes the separator check valves 120 act as dummies and do not function. Similarly, the exhaust gas discharged from the lower space 114 naturally has a shorter path, and flows directly to the upper space 112 via the gap and is discharged, and the air passage 116 having a longer path is not selected, which is a natural phenomenon of fluid traveling.

The actual air circulation path constructed by the conventional full face mask 100 is quite different from the expected theory, that is, it is theoretically expected that the clean air inhaled by the user and the exhaust gas exhaled by the user can enter and exit through a specific path, but as a result of the gap between the isolation part 110 and the face of the user, the air enters from the gap, the isolation part check valve 120 on the isolation part 110 cannot be opened or cannot be completely opened, the amount of clean air entering the mouth and nose is naturally insufficient, and the user feels that the air inhalation is not smooth. When the amount of air is insufficient, most of the exhaust air is discharged through the gap, and when water is accumulated in the mask, the user wants to forcibly discharge the accumulated water from the mouth check valve 130 under the mask, that is, the accumulated water is greatly reduced by the air leakage, and the user is likely to feel choking or anxiety due to the lack of time for discharging the water, thereby resulting in excessive ventilation. The result that the air suction amount is insufficient and the water cannot be drained reliably is serious threat to life safety.

In addition, the whole-cover type face mask adopts a one-piece design of eyes, nose and mouth, so that the breathing skill required for underwater use is reduced, the selected age group is wide, but in recent years, a plurality of fatal accidents in use are caused. Since 2019, based on security clearance, the european union mandates that CE certifications meeting the requirements of new legislation (EU)2016/425 must be presented for respiratory products to be sold in the european union area, wherein EN 136:1998 is the standard established by the european union for performance, test mode and labeling of full face masks. Of particular importance is that in the test mode of EN 136:1998, full face diving masks should be tested under open/closed conditions at 50RMV (breathing volume rate) and at a gas valve on the mask (drain valve), respectively, and the mask test results are required to be consistent with the carbon dioxide content of the inhaled air (dead space ) not exceeding 1% on average. That is, when the full-face diving mask is used in water, enough clean air must be brought in during inspiration, so that higher oxygen can fully enter the mask, and when the mask is in exhalation, dirty air can be effectively and reliably discharged out of the mask, so that carbon dioxide cannot be retained in the mask, and the test standard can be passed, thereby ensuring that a user can safely ventilate in a stagnation area, and avoiding danger in water.

However, as mentioned above, there are several technically fatal designs of the existing full-face masks, (i.e., the actual gas circulation path is significantly different from the theoretical expected path, so that the intake of clean air and the exhaust of carbon dioxide are not standardized), and therefore, the existing full-face masks almost fail the EN 136:1998 test standard, which is very important because the potential crisis is, and the consumer has no ability to find technical flaws from the appearance of the mask, so the EN 136:1998 standard is certified in the product.

In view of this, how to provide a full-face mask meeting various safety standards is an urgent object in the industry at present, and is a particular emphasis of the present invention.

[ Utility model ] content

An object of the utility model is to provide a full-face type face guard that accords with each item safety standard.

To achieve the above objects, a preferred embodiment of the present invention provides a full face mask comprising a mask body, a breathing tube, a non-reflexed isolation support portion and at least one air inlet valve. The mask body is attached to the face of a user by a soft part to form an inner space. The breathing tube sets up in face guard body top to communicate with the inner space, so the user can inhale/spit air through the breathing tube. The non-reflexed isolation support part is arranged in the inner space so that the inner space defines an upper space and a lower space, and the lower space is communicated with the breathing tube. At least one air inlet valve is arranged on the non-reflexed isolated supporting part.

To achieve the above objects, a full face mask according to another preferred embodiment of the present invention comprises a mask body, a breathing tube, a non-reflexed isolation support portion and at least one air inlet valve. The mask body comprises a mirror part and a soft part which are connected, and the soft part is attached to the face of a user and forms an inner space. The breathing pipe is arranged above the mask body and is communicated with the inner space in a gas mode. The non-reflexed isolation support part is arranged in the inner space so that the inner space defines an upper space and a lower space, and the lower space is communicated with the breathing tube. At least one air inlet valve is arranged on the non-reflexed isolated support part. The joint of the lens part and the soft part is defined with a channel which comprises a flow deflector to block the mutual circulation of the gas flowing from the lower end of the channel to the breathing tube.

In one embodiment, the full face mask of the present invention further comprises a first partition disposed in the lower space, such that the lower space defines a proximal space and a distal space, the proximal space being adjacent to a nose of a user.

In one embodiment, the first partition of the full face mask of the present invention further comprises a check valve for exhausting the exhaust air exhaled by the user.

In an embodiment, the lens portion of the full face mask of the present invention further includes a flow guiding opening, and the flow guiding opening is communicated with the far-end space.

In an embodiment, the soft portion of the full face mask of the present invention further comprises a stop piece, and the stop piece covers the flow guiding opening.

In order to make the aforementioned objects, features and advantages more comprehensible, preferred embodiments accompanied with figures are described in detail below.

[ description of the drawings ]

FIG. 1 is a perspective view of a prior art full face mask;

FIG. 2 is a perspective view of a full face mask of the present invention;

FIG. 3 is a front view of a non-reflexed isolated support portion of a full face mask of the present invention;

FIGS. 4A-4D are sectional views of the non-reflexed spacer portion of FIG. 3 taken along line B-B, C-C, D-D and line E-E in sequence;

FIG. 5 is a schematic view of a full face mask in section along line A-A;

FIG. 6 is an exploded view of the full face mask of FIG. 5 including a frame and an outer cover;

FIG. 7 is a schematic view of the mirror portion of the full face mask of FIG. 5;

FIG. 8 is a schematic view of the full face mask of FIG. 5 with the soft portion attached to the mirror portion;

FIG. 9 is an exploded view of the full face mask of the present invention;

FIG. 10 is an assembled schematic view of the full face mask of FIG. 9;

FIG. 11 is a schematic view of the path of the air flow in the channels of the full face mask of the present invention when the user exhales; and

fig. 12 is a schematic view of the full face mask of fig. 5 showing the direction of inspiration, exhalation and drainage.

[ notation ] to show

100 full-face mask

110 spacer

112 upper space

114 lower space

116 airway

120 isolating part check valve

130 mouth check valve

140 side check valve

200 full-face mask

210 mask body

211 diversion port

212 inner space

213a guide vane

214 soft part

2141 stop sheet

216 mirror part

217 baffle

218 frame body

219 outer cover

220 breathing tube

230 non-reflexed isolated support part

2301 front side

2302 rear side

232 upper space

234 lower space

235 proximal space

236 far end space

241 air inlet valve

242 valve latch

256 one-way valve

252 upper exhaust valve

254 drain valve

260 first partition plate

261 peripheral edge portion

Angle A

R air

C waste gas

W water

[ detailed description ] embodiments

As shown in fig. 2, a full face mask 200 according to an embodiment of the present invention is adapted to be worn on the face of a user, and includes a mask body 210, a breathing tube 220, a non-reflexed isolation support 230 and at least one air intake valve 241.

The mask body 210 includes a soft portion 214 and a mirror portion 216 connected to each other, and the soft portion 214 (or "skirt") disposed around the mirror portion 216 fits the face of the user, and the mask body 210 forms an inner space 212. The breathing tube 220 is disposed above the mask body 210 and is in communication with the interior space 212 such that a user can inhale/exhale air through the breathing tube. The non-reflexed isolated support portion 230 is disposed within the interior space 212 such that the interior space 212 defines an upper space 232 and a lower space 234; the front side 2301 of the non-reflexed support 230 can be secured (either indirectly or directly) to the medial side of the mirror portion 216, and the back side 2302 of the non-reflexed support 230 is directed rearward and toward the user's face (and forward and toward the mirror portion 216), so that the back side 2302 of the non-reflexed support 230 can directly contact the user's face to conform to the user's cheeks and to cover the user's nose region (about the cheek from the bridge of the nose to both sides of the mouth).

Since the conventional full face mask 100 uses a large gap between the partition 110 and the cheek and nose of the user, when the user inhales, air easily flows directly into the lower space 114 through the gap, so that the partition check valve 120 is closed for a nearly long time. In the present embodiment, as shown in fig. 3, the non-inflected separation supporting portion 230 can completely fit the cheek of the user and cover the nose region of the user, so that there is no gap between the non-inflected separation supporting portion 230 and the cheek and nose of the user, and further an upper space 232 (or eye space) and a lower space 234 (or nose and mouth space) are defined and separated. In detail, as shown in fig. 4A to 4D, the non-reflexed isolation support 230 may be preferably disposed to have an inward curl near the nose bridge portion, which may be at most about 1 cm extending inward (lower space 234) (fig. 4A) to abut the nose bridge portion, and the reflexed isolation support 230 extending downward away from the nose bridge portion may not be curled inward (fig. 4B) until the reflexed isolation support 230 of the portion near the cheeks on both sides of the mouth has an outward curl, which may be at most about 1 cm extending outward (upper space 232) (fig. 4C and 4D), which may have good support and may not easily collapse. Thus, when the user inhales, the at least one air inlet valve 241 disposed on the non-inflected isolating support 230 is easily forced to open due to the fact that the pressure of the nose and mouth space is reduced because of no air leakage, and the exhaust gas exhaled by the mouth and nose will not flow back through the gap and accumulate in the inner space 212.

As shown in fig. 5, a schematic view of a-a line partially cut away of a full face mask 200 according to an embodiment of the present invention, at least one air inlet valve 241 is disposed on the non-inflected separation support 230, for example, symmetrically disposed on the left and right sides of the nose region of the user.

Referring to fig. 6, the lower space 234 of the full-face mask 200 may further include at least one check valve, such as an upper drain valve 252 and a lower drain valve 254, and the upper drain valve 252 and the lower drain valve 254 may be respectively inclined at different angles, so that when there is accumulated water, the accumulated water may be selectively drained by the optimum valve according to the turning angle of the head of the user. If there is only a small amount of accumulated water, the accumulated water can be easily discharged from the lower drain valve 254 to the outside without waiting for the accumulated height of the upper drain valve 252; at this time, the upper exhaust valve 252 is responsible for disposing the exhaust of the exhaust gas discharged by the user, so that the efficiency of water discharge and exhaust is improved, the use is smoother and easier, the water choking pressure is avoided, and the safety and fun of diving and floating can be naturally improved.

The full face mask 200 may further include a first partition 260 disposed in the lower space 234 and having a peripheral portion 261, wherein the peripheral portion 261 may be directly or indirectly secured to the inner side of the mirror portion 216 such that the lower space 234 defines a proximal space 235 and a distal space 236, wherein the proximal space 235 is proximate to the user's nose and the distal space 236 is distal to the user's nose.

The mask body 210 further includes a frame 218 and a cover 219, wherein the frame 218 is fastened around the mirror portion 216 and the soft portion 214 to further protect the mirror portion 216, and the cover 219 is detachably fixed on the mirror portion 216 or the frame 218 to preferably shield the area of the mirror portion 216 having the upper drain valve 252 and the lower drain valve 254 to protect the upper drain valve 252 and the lower drain valve 254. If the upper drain valve 252 and the lower drain valve 254 have a structure that is not easily damaged, the cover 219 may not be necessary. The first partition 260 may be made of a soft material or a hard material, and may be provided with a check valve 256 to discharge the exhaust air discharged from the user.

As shown in fig. 7, the mirror portion 216 of the full face mask 200 of the present embodiment may further include a diversion port 211 located below a diversion plate 217 extending from the inner side of the mirror portion 216, such that when water W permeates into the upper space 232 of the full face mask 200, the water W flows along the inner side of the mirror portion 216 or the diversion plate 217 toward the diversion port 211 to the lower drainage valve 254 of the lower space 234 and then is drained.

As shown in fig. 8, the soft portion 214 further includes a stopper 2141, when the soft portion 214 is connected to the mirror portion 216, the stopper 2141 covers the flow guide opening 211 and is configured to prevent the water W from flowing back to the upper space 232 along the flow guide opening 211, i.e., the stopper 2141 can act as a one-way valve, so that the water W flows to the lower space 234 in one direction. As shown in fig. 9 and 10, the soft portion 214 is connected to the mirror portion 216 to form a channel 213 inside a periphery of the full face mask 200, the channel 213 has a flow deflector 213a, and the flow deflector 213a may be a part of the mirror portion 216 or a part of the soft portion 214 and is disposed at a connection position of the channel 213 and the breathing tube 220 to block a direct flow of air from a lower end of the channel 213 to the breathing tube 220. To put it differently, as shown in fig. 11, when the exhaust gas C exhaled by the user enters the lower end of the channel 213 from the lower space 234 and then flows to an upper end of the channel 213 to the breathing tube 220, the deflector 213a prevents the exhaled gas from flowing directly (the air in the left channel flows directly from the right channel, or vice versa), so that the exhaust gas C (carbon dioxide) is accumulated in the full face mask 200 and cannot be exhausted completely, and the user cannot inhale enough clean air, which may cause a danger. By the arrangement of the baffle 213a, the air from the left and right channels will be blocked and flow to the breathing tube 220 to be discharged out of the full face mask 200.

Referring to fig. 12, the air flow path of the full face mask 200 of the present embodiment will be described as follows:

when the user inhales, the air R flows into the lower space 234 from the air inlet valve 241 of the non-inflected isolating support 230, so that the air R enters the mouth and nose with less effort, and thus the amount of air (oxygen) inhaled by the user is sufficient. When the user exhales, the inlet valve 241 is forced to close, part of the exhaust gas C flows from the passage 213 to the breathing tube 220 and is exhausted, and part of the exhaust gas C flows from the proximal space 235 to the distal space 236 through the one-way valve 256 of the first partition 260 and then flows out through the upper exhaust valve 252 or the lower exhaust valve 254. When water W inadvertently flows into the full face mask 200, due to the first partition 260, the water W seeping into the inner space 212 is isolated in the distal space 236 between the lens portion 216 and the first partition 260 and accumulated between the lens 218 and the first partition 260, and does not enter the proximal space 235 to touch the nose and mouth of the user, thereby avoiding causing panic and anxiety of the user. When the user exhales, the pressure in the distal space 236 increases, which may drain the accumulated water from the upper drain 252 or the lower drain 254, or when the user floats on the water due to the weight of the accumulated water, gravity may draw the water directly from the upper drain 252 or the lower drain 254 (depending on the amount of accumulated water or the direction of the head) without the user exhaling. The design can greatly improve the problem that the prior art is difficult to suck enough clean air (the content of carbon dioxide is too high) and is anxious when water is touched, and the design is suitable for both the inspiration period and the spitting period.

To sum up, the utility model discloses a full-face mask's non-inflection keeps apart the supporting part and laminates completely and covers in user's cheek and nasal part, and has the water conservancy diversion piece in the passageway, and can inhale clean air easily, and more effectively from respiratory tube and/or check valve exhaust waste gas, is difficult for the backward flow and the accumulation to accord with each item safety standard. Meanwhile, a stop sheet or a partition plate can be arranged to isolate the water which carelessly flows into the full-face mask from the nose and the mouth of a user, so that anxiety and panic of the user caused by water contact are avoided, and the use safety is improved.

The above-mentioned embodiments are only intended to illustrate the embodiments of the present invention and to explain the technical features of the present invention, and are not intended to limit the scope of the present invention. Any modifications or equivalent arrangements which may be readily devised by those skilled in the art are intended to be included within the scope of the present invention as defined by the appended claims.

Claims (6)

1. A full face mask adapted to be worn on the face of a user, comprising:

a mask body, which comprises a mirror part and a soft part which are connected, wherein the soft part is attached to the face of the user, and the mask body forms an inner space;

the breathing tube is arranged on the mask body and is communicated with the inner space;

the non-inflection isolation support part is arranged in the internal space so as to enable the internal space to define an upper space and a lower space, and the lower space is communicated with the breathing tube; and

at least one air inlet valve, which is arranged on the non-reflexed isolated support part;

wherein, a channel is defined at the joint of the lens part and the soft part, and the channel comprises a flow deflector to block the mutual circulation of the gas flowing from the lower end of the channel to the breathing tube.

2. The full face mask according to claim 1, wherein the junction of the lens portion and the soft portion defines a channel, the channel including a baffle to block gas flowing from a lower end of the channel to the breathing tube from communicating with each other.

3. The full face mask according to claim 1, further comprising a first partition disposed in the lower volume such that the lower volume defines a proximal volume and a distal volume, the proximal volume being adjacent a nose of the user.

4. The full face mask according to claim 3, wherein the first partition further comprises a one-way valve for venting exhaust exhaled by the user.

5. The full face mask as in claim 1, wherein the mirror portion further comprises a flow guide port, the flow guide port communicating with the distal space.

6. The full face mask according to claim 1, wherein the soft portion further comprises a stop, the stop covering the flow guide opening.

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