TW202112610A - Full-face mask - Google Patents

Abstract

A full-face mask including a mask body, a breathing tube, an isolation support portion, and a partition is provided. The mask body comprises a lens portion and a soft portion, the soft portion fits a user’s face to form an interior space. The breathing tube is disposed above the mask body and is connecting with the interior space. The isolation support portion is disposed in the inner space to define an upper space and a lower space which are connected with each other. A partition is disposed in the lower space and comprises an intake valve. The lower space is defined as a proximal space and a distal space. When the user inhales, the air will enter the proximal space through the intake valve. That is, the user could effectively breathe, exhale and/or isolated from leakage water to avoid danger.

Description

Full face mask

The present invention relates to a full face mask for underwater activities, in particular to a full face mask for snorkeling which can improve safety.

The full-face mask can simultaneously cover the eyes, nose and mouth of the user when worn, allowing the user to breathe naturally through the nose or mouth, which is close to the breathing habits of ordinary life.

Currently on the market for full face masks, the intake valves are mostly set on both sides of the isolation part. After wearing the mask, the intake valve will be close to the user’s cheek, and everyone’s face shape is different. Some people will Squeezed to the intake valve, causing the intake valve to fail to open smoothly and not enough fresh air when inhaling; or the intake valve is twisted and deformed due to the squeezing, causing the pressure to be unable to close it completely when exhaling. Make the spit out waste (with water vapor) leak out to the lens area through the unclosed part to cause the lens to fog up, and the carbon dioxide contained in the exhaust gas cannot be smoothly discharged. It will also cause the user to become tired and pant aggravated during activities. For people who are afraid of water, the chance of choking on water is also increased, safety is worrying, and the pleasure of leisure activities will also be greatly reduced.

This kind of full-face mask, if the passage of gas in and out is not smooth, the ability to block water is not good, and the drainage design is unstable, it is easy to cause carbon dioxide accumulation and dizziness, fainting or water accumulation in the mask may cause anxiety. Excessive ventilation, etc. Once the aforementioned situation is encountered when wearing a full face mask, no matter if you continue to wear it or remove it completely, you may face the fate of drowning, which is quite dangerous. The following two news that users drowned highlight the hidden dangers in the design of the full face mask: 1. "Snorkeling Safety and the New Potential Hazards of Full Face Mask (Snorkeling Safety and the New Potential Hazards of Full Face Mask) -Face Snorkel Masks)” (https://snorkelstore.net/snorkeling-safety-new-potential-hazards-full-face-snorkel-masks); and “Since the sudden death of snorkeling recently, the "Recent snorkel deaths prompts investigation into full-faced snorkel masks" (http://www.ktvu.com/news/recent-snorkel-deaths-prompts-investigation-into-full-faced-snorkel-masks) .

The design flaws of this type of mask are described in detail below with the diagrams as follows:

First, as shown in Figure 1, the existing full-face mask 100 is provided with a partition 110 in its internal space and two air passages 116 on the left and right sides of the full-face mask. The isolation portion 110 is used to define an upper space 112 (or: eye space) and a lower space 114 (or: nose and mouth space), and the second airway 116 is used to make the breathing tube (not shown) and the lower part The spaces 114 are in gas communication.

This design claims that the gas circulation path is: a) After the fresh air drawn in from the upper breathing tube flows through the upper space 112, it will flow into the lower space 114 from the isolating part check valves 120 on both sides of the isolating part 110 Nasal inhalation; b) The exhaust gas exhaled from the nose and mouth is discharged from the two airways 116 surrounding the left and right sides of the full face mask 100 from the bottom of the full face mask 100 to the side check valve 140 and breathing tube at the upper end , And then discharged to the outside world.

In addition, the existing full-face mask 100 also claims that when water enters the mask and accumulates in the lower space 114 of the mask, the user only needs to exhale through a large mouth to increase the pressure inside the mask and set the accumulated water in the lower part of the mask. The mouth check valve 130 below the space 114 is discharged.

This seemingly reasonable theoretical design actually hides great flaws. Specifically, the existing full-face mask 100 takes into account the simple manufacturing process, the wide adaptation to the face shape, and the wearing comfort, the isolating portion 110 is folded back/folded in half (that is, the isolating portion is folded in half, and its two ends will face Each other), but this design sometimes does not fully fit or cover the user’s cheeks and nose. In other words, when such a full face mask is worn, many gaps or gaps will be formed between the isolation portion 110 and the user's cheeks and nose (hereinafter collectively referred to as gaps); or due to the isolation portion The one-way valve 120 is squeezed and deformed by the cheeks, and it cannot be fully opened or completely closed. There will be gaps. The existence of these gaps prevents the air entering and exiting from flowing in the originally envisaged path (ie: clean air intake from the upper space 112. Enter the lower space 114 through the isolating part check valve 120 of the isolating part 110; the exhaust gas will all travel upwards through the air passage 116 to the breathing tube and the side check valve 140 to be discharged). In fact, the clean air will be worse. It is easy to flow directly into the lower space 114 through the gap for inhalation by the mouth and nose (because the air flow path will pass through the gap first); accordingly, the exhaust gas exhaled from the mouth and nose will flow back to the upper space 112 from the gap more easily. However, it cannot be discharged smoothly through the air passage 116 and the side check valve 140.

The actual gas circulation path constructed by the above-mentioned existing full-face mask 100 is quite different from the expected theory. In other words, it was originally expected that the clean air and exhaust gas exhaled by the user can be passed through a specific The path enters and exits, but there is a gap between the isolation part 110 and the user’s face. As a result of the air entering from the gap, the isolation part one-way valve 120 on the isolation part 110 cannot be opened or cannot be fully opened, and the mouth and nose are clean. The air volume is naturally insufficient, which naturally causes the user to feel unsatisfactory inhalation. In addition, when the air intake is insufficient, the exhaust gas is discharged, and most of it comes out through the gap. When water accumulates in the mask, the user wants to exhale forcefully to expel the accumulated water from the mouth check valve 130 under the mask. It is greatly compromised because of air leakage, and it is easy to cause choking or anxiety and the risk of over-ventilation because the water is too late to drain. The result of insufficient air inhalation and inability to reliably discharge, seriously threatens the safety of life.

In addition, due to the one-piece design of the eyes, nose, and mouth of this type of full face mask, it reduces the breathing skills required for underwater use, which makes the choice of a wide range of age groups, but in recent years it has caused many fatal accidents in use. Starting in 2019, based on safety regulations, the European Union mandates that respiratory products must present a CE certification that meets the requirements of the new Regulation (EU) 2016/425 before they can be sold in the European Union. Among them, EN 136: 1998 is the European Union. Standards established for the performance, testing methods and markings of full face masks. Especially important, in the test method of EN 136: 1998, the full-face diving mask should be tested at 50 RMV (respiratory volume rate) and the drain valve on the mask under open/closed conditions, and The test result of the mask must be consistent with the carbon dioxide content of the inhaled air (dead space, stagnant zone) not exceeding an average of 1%. In other words, when a full-face diving mask is used in the water, it must bring enough clean air when inhaling, so that a higher amount of oxygen can fully enter the mask, and when exhaling, it can really effectively remove the dirty air. It is possible to pass the test standard by draining the carbon dioxide out of the mask so that the carbon dioxide does not stay in the mask, ensuring that the user can safely ventilate in the stagnant area, and will not cause danger underwater.

However, as described above, the existing full face masks have several technically fatal designs, (that is, the actual gas circulation path is significantly different from the theoretically expected, resulting in the clean air intake and the carbon dioxide emissions are not up to the standard) Therefore, almost all of them cannot pass the EN 136: 1998 test standard. This is partly because it is a potential crisis. Consumers have no ability to find technical defects from the appearance of the mask. Therefore, it is extremely important to bring the EN 136: 1998 standard certification to the product.

In view of this, how to provide a full-face mask that meets various safety standards has become an urgent goal in the industry, and it is also a particular focus of the invention of this case.

One object of the present invention is to provide a full face mask that meets various safety standards.

To achieve the above objective, the full-face mask of the first preferred embodiment of the present invention includes a mask body, a breathing tube, an isolation support part and a first partition. The mask body includes a mirror part and a soft part that are connected to each other, and the soft part fits a user's face to form an internal space. The breathing tube is arranged above the mask body and communicates with the internal space for the user to inhale air and exhale exhaust gas. The isolation support part is arranged in the internal space, so that the internal space defines an upper space and a lower space, and the upper space is communicated with the lower space. The first partition is arranged in the lower space and includes an air inlet valve. The first partition defines a proximal space and a distal space from the lower space. When the user inhales air, the air will enter through the air inlet valve. The near-end space.

In one embodiment, the first partition of the full face mask of the present invention has a shape such that the air intake valve corresponds to and is close to the user's nostrils.

In one embodiment, the air intake valve of the first partition of the full face mask of the present invention is a normally open air intake valve.

In one embodiment, the first partition of the full face mask of the present invention further includes an exhaust valve, which is arranged below the intake valve to further discharge the exhaust gas exhaled by the user.

In one embodiment, the full-face mask of the present invention further includes a second partition plate disposed in the distal space, so that the distal space defines a diversion space and a temporary storage space.

In one embodiment, the mirror portion of the full face mask of the present invention further includes a diversion port, and the diversion port is in communication with the temporary storage space.

In one embodiment, the full face mask of the present invention further includes at least one one-way valve arranged in the temporary storage space to discharge stagnant water or exhaust gas exhaled by the user.

In one embodiment, a channel is defined at the connection between the mirror part and the soft part of the full face mask of the present invention, and the channel includes a shunt to block the mutual flow of gas flowing from the lower end of the channel to the breathing tube.

In order to make the above objectives, technical features, and advantages more obvious and understandable, the following is a detailed description with preferred embodiments in conjunction with the accompanying drawings.

As shown in Figures 2, 3A and 3B, a full-face mask 200 disclosed in the present invention is suitable to be worn on the face of a user, and includes a mask body 210, a breathing tube 220, An isolation support part 230 and a first partition 260.

The mask body 210 includes a soft portion 214 and a mirror portion 216 connected to each other. The soft portion 214 (or "skirt") provided on the periphery of the mirror portion 216 fits the user's face, and the mask body 210 forms an internal space 212. The breathing tube 220 is arranged above the mask body 210 and communicates with the internal space 212, so that the user can inhale air and exhale exhaust gas through the breathing tube.

The isolation support portion 230 is disposed in the inner space 212 so that the inner space 212 defines an upper space 232 and a lower space 234, and the upper space 232 and the lower space 234 communicate with each other. In detail, there may be a gap 215 between the front side surface 2301 of the isolation support portion 230 and the mirror portion 216, and the rear side surface 2302 faces backward and faces the user's face (the face faces forward and faces the mirror portion 216). Fits the user's cheeks and covers the user's nose area (approximately from the bridge of the nose to the cheeks on both sides of the mouth). The interval 215 may be set to be approximately above the bridge of the nose, or extend from above the bridge of the nose to both sides of the mouth. That is, the front side surface 2301 of the isolation support portion 230 can partially contact the inner side surface of the mirror portion 216, so that the gap 215 presents a slight arc-shaped opening (not shown); or it does not contact the inner side surface of the mirror portion 216 at all, so that The interval 215 presents an inverted U-shaped opening (as shown in Fig. 3B). Preferably, the position of the spacer 215 is closer to the mirror portion 216 and the breathing tube 220 than the position where the rear side 2302 fits the user. In this way, when the user inhales, the fresh air R flowing in from the breathing tube 220 will directly flow into the lower space 234 from the upper space 232 via the interval 215 through the shorter path, so as to improve the efficiency of the user inhaling fresh air. Different from the previous isolation part 110 which is placed close to the mirror part of the mask, since the front side 2301 of the isolation support part 230 of the present invention is separated from the mirror part 216 by 215, and the isolation support part 230 is made of a soft material, when the user After wearing the full face mask 200, the isolation support 230 can be elastically deformed and moved, which can more closely fit the user's face and nose, so that it fits the user's cheeks and covers the user's nose area completely, so that There is almost no or no gap between the isolation support part 230 and the cheek and nose of the user, so as to prevent exhaust gas from flowing back through the gap and accumulating in the inner space 212 or causing the mirror surface of the mirror part 216 to fog. The isolation support portion 230 can also be configured as a reflex design or a non-reflex design (that is, the two ends of the isolation support portion 230 are not completely folded in half and face each other) according to different usage requirements to better suit the faces of different users Differences in width, nose bridge height, etc., so as to avoid problems such as backflow and hoarding of exhaust gas.

As shown in Figures 4, 5A, and 5B, the mask body 210 of the present invention further has a first partition 260, which is disposed in the lower space 234, and can be made of a soft material or a hard material. The first partition The plate 260 may be formed independently or integrally formed with the soft part 214 (as shown in FIG. 5B). When the first partition 260 and the soft portion 214 are integrally formed, materials with different hardnesses can be used in different areas. For example, the isolation support portion 230 of the soft portion 214 is softer and the first partition 260 is harder. When the first partition 260 and the soft portion 214 are formed separately, the first partition 260 has a peripheral edge portion 261, and the peripheral edge portion 261 can be directly or indirectly fixed on the isolation support portion 230 of the soft portion 214, for example, Clamped directly, closely attached to the front side surface 2301 and rear surface of the isolation support portion 230, or directly clamped in the clamping groove formed by the front side surface 2301 of the isolation support portion 230 by injection molding (not shown), or the peripheral edge portion 261 and the isolation support part 230 are provided with other elements to assist in fixing and to strengthen the prevention of water infiltration and contact with the user (for example, the fixing member, the adhesive layer), and the lower space 234 is defined by the arrangement of the first partition 260 A proximal space 235 and a distal space 236.

Please also refer to FIG. 6, the first partition 260 has an upper flat surface 262 and a lower flat surface 263, and the upper flat surface 262 can be provided with an intake valve 241. The first partition 260 has a shape such that the intake valve 241 preferably has an inclination angle with respect to the direction in which the user's face faces. That is, when the mask body 210 is placed perpendicular to the ground, the cross-section of the first partition 260 may be approximately an S shape, for example. In this way, when the user wears the full face mask 200, the intake valve 241 is preferably in the center position of the mask body 210, close to the user's nose, corresponding to the user's nostrils 10, so that the inhalation path is shorter And it allows the user to inhale the air R more efficiently. The inclination angle of the upper plane 262 can be adjusted according to the configuration or size of different full-face masks, so as to be close to the front of the nose (especially the position of the nostril). The intake valve 241 can be set to have a larger size than the conventional one-way valve, for example, a diameter of about 2 cm to 3 cm. In this way, compared to the longer air intake path in which the isolating part check valve 120 is arranged on the isolating part 110 (approximately located on the left and right sides of the nose), the present invention can let the user breathe freshly. The air R easily flows into the lower space 234 through the interval 215, and then flows into the proximal space 235 through the air inlet valve 241, allowing the user to inhale enough fresh air more directly and efficiently without being caused by insufficient fresh air. Feeling of hypoxia and dizziness.

As shown in Figs. 7A to 7C, the structure of the intake valve 241 can be selected as a bowl-shaped structure normally open valve. The bowl-shaped structure air valve has a bowl-shaped shape that is inclined inward (the direction toward the face after the user wears the full face mask 200). It is made of soft and thin material; when the user inhales, the bowl The air valve of the shape structure is kept normally open to allow air R to flow to the user. When the exhaust gas C is exhaled, the valve of the bowl shape structure is squeezed and stretched outwards into a plane to cover the air inlet 231 (as shown in Figure 7C) . Since the air valve structure does not cover the air inlet 231 when the user inhales, it is easier to use the general inhalation force so that fresh air can directly pass through the air inlet 231 to the proximal space 235. When the intake valve 241 and the user's nose have an appropriate setting angle and distance, the intake valve 241 may be a general intake valve (not shown), that is, a normally closed intake valve. When the user inhales, a decrease in the pressure in the proximal space 235 (especially near the nostrils) will open the intake valve. On the contrary, when the user exhales, the increase in pressure will make the intake valve more tightly closed, thus avoiding carbon dioxide. accumulation.

In addition, the lower plane 263 is located below the upper plane 262 and has an angle relative to the upper plane 262. An internal exhaust valve 257 can be further provided. The internal exhaust valve 257 can be a one-way valve and preferably corresponds to The position of the user’s mouth, so when the user exhales from the mouth, the internal exhaust valve 257 will be directly pressed to open so that the exhaust gas C can not only be discharged through the breathing tube 220, but also directly discharged farther through the internal exhaust valve 257 The end space 236 does not flow back from the unintended gap between the isolation support portion 230 and the user, and is stored in the internal space 212. The configuration of the lower plane 263 can also be modified corresponding to the adjustment of the upper plane 262.

Please refer to FIGS. 4 and 5A again. The mask body 210 further has a second partition 270. The second partition 270 can also be made of a soft material or a hard material, and has a peripheral edge portion 271 and a peripheral edge portion 271. The upper end can be directly or indirectly fixed (for example, clamping other elements) on the inner surface of the mirror portion 216, and the lower end of the peripheral edge portion 271 can be directly or indirectly fixed and leaned against the first partition 260 to secure the distal space 236 is divided into a diversion space 237 and a temporary storage space 238.

The temporary storage space 238 can include an upper exhaust valve 252 and a lower drain valve 254. Both the upper exhaust valve 252 and the lower drain valve 254 can be a one-way valve, and can be inclined and set to different angles respectively, so that the entire When the mask-type face mask 200 has a little water seepage and water accumulates in the temporary storage space 238, the accumulating water can be selectively discharged by the most suitable valve according to the turning angle of the user's head. If there is only a small amount of stagnant water, the stagnant water can be easily discharged from the lower drain valve 254 to the outside without waiting until it accumulates to the height of the upper exhaust valve 252. At this time, the upper exhaust valve 252 is solely responsible for processing the exhaust gas C discharged by the user. The drainage improves the efficiency of drainage and exhaust; even if the accumulated water accumulates to the upper exhaust valve 252, due to the arrangement of the first partition 260 and the second partition 270, the accumulated water will not touch the mouth and nose of the user. To avoid the fear and pressure of choking users, it can naturally enhance the safety and fun of snorkeling. When the upper exhaust valve 252 and the lower drain valve 254 are sufficient for the user to completely discharge the accumulated water, the second partition 270 does not necessarily need to be provided.

Please refer to Figure 6, Figure 8, and Figure 9, to describe the preferred empty path of the full face mask 200 in this case as follows:

When the user inhales, air B can flow from the breathing tube from the upper space 232 through the interval 215 to the diversion space 237 and enter the proximal space 235 through the air intake valve 241 on the plane 262 above the first partition 260, directly It is inhaled by the user, so the amount of air (oxygen) inhaled by the user can easily meet or exceed the safety standard. When the user exhales, the pressure in the proximal space 235 increases, causing the intake valve 241 to become closed. At this time, part of the exhaust gas C flows from the passage 213 to the breathing tube 220, and part of the exhaust gas flows through the internal exhaust valve 257 to The temporary storage space 238 flows out through the upper exhaust valve 252 or the lower drain valve 254. As shown in Figure 9, if water W accidentally flows into the full face mask 200 and accumulates in the temporary storage space 238, due to the blocking of the second partition 270, the force of exhalation will more easily cause the pressure in the temporary storage space 238 to increase , The water W will be discharged from the lower drain valve 254 more easily, and will hardly accumulate to the height of the upper exhaust valve 252. In this way, the upper exhaust valve 252 can deal with the exhaust gas discharged by the user, improve the efficiency of exhaust gas, and improve the use的安全。 The security.

As shown in Figure 10, the mirror portion 216 of the full face mask 200 of this embodiment may further include a diversion opening 211, which is located below a diversion piece 217 extending from the inner side of the mirror portion 216, for example, it can be located Between the diversion space 237 and the temporary storage space 238, when water W penetrates into the upper space 232 of the full face mask 200, it flows along the inner side of the mirror portion 216 or the deflector 217 to the diversion port 211 to the temporary storage space The lower drain valve 254 of the 238 is then discharged as the user moves or exhales. Even if the water W is not discharged immediately, the second partition 270 can be arranged to prevent the water W from flowing back to the diversion space 237 along the diversion opening 211 or reaching the position of the intake valve 241 to be inadvertently inhaled by the user, or the soft part 214 may include a stopper piece (not shown). When the soft part 214 is connected to the mirror part 216, the stopper piece can cover the diversion opening 211 to prevent water W from flowing back to the diversion space along the diversion opening 211 237, which means that the stop piece can be used as a one-way valve to allow the water W to flow to the temporary storage space 238 in one direction.

As shown in Figure 11, after the soft part 214 is connected to the mirror part 216, a channel 213 can be formed inside a periphery of the full face mask 200. The channel 213 has a shunt 213a, which can be the mirror part A part of 216 or a part of the soft part 214 is arranged at the connection between the passage 213 and the breathing tube 220 to block the direct flow of gas from a lower end of the passage 213 to the breathing tube 220. In other words, when the exhaust gas C exhaled by the user enters the lower end of the passage 213 from the lower space 234 and then flows to the upper end of the passage 213 to the breathing tube 220, the shunt 213a can prevent the exhaled gas from being near the breathing tube 220 Mutual circulation (the air in the left channel flows directly from the right channel, or vice versa), causing the exhaust gas C (carbon dioxide) to not be completely discharged smoothly, and accumulate in the full face mask 200, which can further prevent the user from not inhaling enough clean air. Cause danger. With the arrangement of the flow divider 213a, the exhaust gas C from the left and right channels will be blocked and flow more smoothly and directly to the breathing tube 220 and exit the full face mask 200.

As shown in Figure 12, the mask body 210 can further include a frame 219 and an outer cover 218, wherein the frame 219 can be fastened around the mirror portion 216 and the soft portion 214 to further protect the mirror portion 216, the outer cover 218 Removably fixed on the mirror portion 216 or the frame 219 or integrally formed with the frame 219, preferably shielding the area of the mirror portion 216 with the upper exhaust valve 252 and the lower drain valve 254 to protect the upper exhaust valve 252 and the lower Drain valve 254. If the upper exhaust valve 252 and the lower drain valve 254 have structures that are not easily damaged, the outer cover 218 may not be needed.

In summary, the full face mask of the present invention is directly connected to the upper space 232 and the lower space 234, and the air intake valve 241 is close to the nose of the user, so that the user can more efficiently pass through this shorter and more direct On the contrary, when exhaling through the nose and/or mouth, if the intake valve 241 is a normally open intake valve, it will be directly under pressure to cover the intake port 231 and become a closed state. The exhaust gas C can flow directly through the channel 213 to the breathing tube 220 to be discharged, or when the first partition 260 is further provided with an internal exhaust valve 257, since the position is close to the position of the user's mouth, the exhaled exhaust gas can be more efficiently discharged. C is discharged to the temporary storage space 238, and the water W accumulated in the temporary storage space 238 can also be discharged out of the mask body 210 at the same time, so that exhaust gas C and stagnant water are not easy to return or accumulate, so as to comply with various safety standards. In addition to the first partition, the present invention can isolate the water inadvertently flowing into the full face mask from the nose and mouth of the user, avoiding anxiety and panic caused by the user touching the water, and can also be provided with a second partition And/or the stopper piece, block the backflow of the water accumulated in the mask, and further increase the safety in use. This design can greatly improve the existing technology’s difficulty in inhaling clean enough air (including carbon dioxide that cannot be exhausted, resulting in excessive content) and the anxiety caused by contact with stagnant water, whether it is during inhalation or exhalation. safety standard.

The above-mentioned embodiments are only used to illustrate the implementation mode of the present invention and explain the technical features of the present invention, and are not used to limit the protection scope of the present invention. Any change or equal arrangement that can be easily accomplished by a person familiar with this technology belongs to the scope of the present invention, and the scope of protection of the rights of the present invention shall be subject to the scope of the patent application.

100: Full face mask 110: Isolation Department 112: upper space 114: Lower space 116: Airway 120: Isolation part check valve 130: mouth check valve 140: Side check valve 200: Full face mask 210: Mask body 211: Diversion port 212: Internal Space 213: Channel 213a: deflector 214: soft part 215: Interval 216: Mirror Department 217: Deflector 218: Outer Cover 219: Frame 220: Breathing Tube 230: isolation support 2301: front side 2302: rear side 231: Air Inlet 232: upper space 234: Lower Space 235: Near End Space 236: Remote Space 237: Diversion Space 238: Temporary Storage Space 241: intake valve 252: Upper exhaust valve 254: Lower drain valve 257: Internal exhaust valve 260: first partition 261: Perimeter 270: second partition 271: Perimeter R: Air C: Exhaust gas W: water

Figure 1 is a perspective view of a full face mask in the prior art; Figure 2 is a three-dimensional schematic diagram of the full face mask of the present invention; Figure 3A is a schematic rear view of the full face mask of the present invention; Figure 3B is a perspective view of the full face mask of Figure 3A; Figure 4 is a partially cut-away perspective view of the full face mask of the present invention; Figure 5A is an exploded schematic view of the full face mask in Figure 4; Figure 5B is a schematic diagram of the first partition and the soft part of the full face mask of the present invention being integrally formed; Figure 6 is a schematic diagram of the airflow path of the full face mask of the present invention when the user inhales; Figure 7A is a perspective view of the normally open valve of the full face mask of the present invention; Figure 7B is a schematic diagram of the B-B line section of the normally open valve in Figure 7A when it is used for inhalation; Figure 7C is a schematic cross-sectional view of the B-B line segment of the normally open air valve in Figure 7A when the user exhales; Figure 8 is a schematic diagram of the airflow path of the full face mask of the present invention when the user exhales; Figure 9 is a schematic diagram of the water flow path of the full face mask of the present invention; Figure 10 is a schematic view of the water flow path of the partial mirror portion of the full face mask of the present invention; Figure 11 is a schematic diagram of the flow path of the airflow in the channel of the full face mask of the present invention when the user exhales; and Figure 12 is an exploded schematic view of the full face mask of the present invention including a frame and an outer cover.

10: Nostrils

213: Channel

214: soft part

215: Interval

216: Mirror Department

220: Breathing Tube

232: upper space

235: Near End Space

237: Diversion Space

238: Temporary Storage Space

241: intake valve

252: Upper exhaust valve

254: Lower drain valve

257: Internal exhaust valve

260: first partition

262: upper plane

263: lower plane

270: second partition

R: Air

Claims (8)

A full-face mask that can be worn on the face of a user, including: A mask body includes a mirror portion and a soft portion that are connected to each other, and the soft portion fits the user's face to form an internal space; A breathing tube arranged above the mask body and communicating with the internal space for the user to inhale air and exhale exhaust gas; An isolation support part is arranged in the internal space, so that the internal space defines an upper space and a lower space, wherein the upper space and the lower space are connected; and A first partition is arranged in the lower space and includes an air inlet valve. The first partition defines a proximal space and a distal space in the lower space. When the user inhales air, the air will pass through The intake valve enters the proximal space. The full face mask according to claim 1, wherein the first partition has a shape such that the intake valve corresponds to and is close to the user's nostrils. The full face mask according to claim 1, wherein the intake valve is a normally open intake valve. The full face mask according to claim 1, wherein the first partition further includes an exhaust valve, and the exhaust valve is arranged below the intake valve to further discharge exhaust gas exhaled by the user. The full-face mask according to claim 1, further comprising a second partition, and the second partition is disposed in the distal space, so that the distal space defines a diversion space and a temporary storage space. The full-face mask according to claim 5, wherein the mirror portion further includes a diversion port, and the diversion port is in communication with the temporary storage space. The full-face mask according to claim 5, further comprising at least one one-way valve, which is arranged in the temporary storage space to discharge stagnant water or exhaust gas exhaled by the user. The full-face mask according to claim 1, wherein a channel is defined at the connection between the mirror portion and the soft portion, and the channel includes a shunt to block gas flowing from a lower end of the channel to the breathing tube Mutual circulation.

Images