CN116513412A

CN116513412A - Breathable mask

Info

Publication number: CN116513412A
Application number: CN202310074168.6A
Authority: CN
Inventors: 薛志诚
Original assignee: QBAS Co Ltd
Current assignee: QBAS Co Ltd
Priority date: 2022-01-28
Filing date: 2023-01-19
Publication date: 2023-08-01

Abstract

A respiratory mask comprises a main body and a respiratory tube. The body comprises a main frame, a lens embedded in the main frame and a waterproof sealing skirt. The waterproof sealing skirt divides the body into an upper chamber for shielding eyes and a lower chamber for shielding nose by a spacer, and arranges an air intake passage and an air exhaust passage independent of each other to split the sucked fresh air and the discharged dirty air. In addition, a nasal passage having a drain valve may be provided in fluid communication with the lower chamber. Furthermore, a three-way tube may be provided having a nasal passage portion, a mouth passage portion and a drain portion in fluid communication with each other, wherein the nasal passage portion is in fluid communication with the lower chamber, and the mouth passage portion is adapted to allow the mouth of a user to be held when the user wears the respiratory mask.

Description

Breathable mask

Technical Field

The invention relates to a mask for water activities, in particular to a mask with a nose part or a nose part and a mouth part capable of breathing for floating and diving.

Background

As shown in fig. 1, most of the current floating and diving activities use a mask 1 for shielding eyes and nose, and a breathing tube 2, so that a user cannot breathe through the nose at all and can breathe through the breathing tube 2 only through the mouth. Because the breathing tube 2 extends from one side of the mask 1, it is not balanced in use; in addition, because the breathing tube 2 needs to be connected to the mask 1, the connection location is usually through the vicinity of the headband 3 of the mask 1, and the headband 3 is easily entangled with hair, such a diving apparatus increases the trouble of wearing by the user. In addition, humans are also accustomed to breathing in the air using the nose, and therefore, using this device forces the user to breathe only in the mouth, violating the user's natural breathing pattern.

Based on the above drawbacks, the practitioner began to contemplate transferring the full face mask Full Face Snorkel Mask, the FFSM's topped breathing tube 4 directly to the conventional diving mask 5 and then communicating with the interior of the mask 5 to allow the user to breathe using the nose. I.e. the conventional mouthpiece-type breathing tube 2 as in fig. 1 is omitted and the design as in fig. 2A is modified. Of course, this is smaller than the full face type floating mask (Full face snorkel mask, FFSM) and can maintain good adhesion with the face. However, the breathing tube 4 in this design is connected to the nasal pocket 7 inside the mask 5 through a tunnel 6 for breathing through the nose (see also fig. 2B). In this design, the inspiration and the expiration are not separated, and during the breathing process, clean air and dirty air are rapidly mixed in the nose bag 7 of the mask 5, so that the concentration of carbon dioxide in the mask 5 is rapidly increased, and the user is easy to lack oxygen in a short time without consciousness, and is quite dangerous. When the user feels uncomfortable, the user does not have a way to breathe with the mouth. In addition, the nose mask 8 of this design is not properly shaped and made, and after practical use test, the "automatic pinching" will occur as a result of the water pressure P (as shown in fig. 2C), which hinders nose breathing and makes the risk of occurrence higher. In addition, the accumulated water in the mask 5 is concentrated in the nose bag 7 at the inner side of the nose mask part 8 and is very close to the nostrils of the user, and the accumulated water is uncomfortable or even choked for the user.

Moreover, since the mask 5 can only cover eyes and nose, the mouth of the user is exposed to water, and the user can be unconsciously closed, so that the user can be prevented from drinking water carelessly, and the user has very little sense of safety.

Therefore, it is a great breakthrough to propose a design that partially or fully solves the above problems, and it is an aim that the industry pursues.

Disclosure of Invention

A first object of the present invention is to provide a breathable mask that shields the eyes and nose of a user, allows the nose of the user to breathe freely in the mask, and separates the inhaled fresh air from the air flow of the discharged dirty air, so that the carbon dioxide concentration in the mask does not rise. In order to achieve the above objects, the present invention provides a respiratory mask, comprising a main body and a respiratory tube, wherein the respiratory tube is in fluid communication with an interior of the main body; the breathing tube comprises an air inlet pipe and an air outlet pipe adjacent to the air inlet pipe, and the body comprises: a main frame; a lens embedded in the main frame; a waterproof sealing skirt, part of which is embedded with the main frame and the lens, wherein the waterproof sealing skirt can be fit to the face of a user; wherein the waterproof sealing skirt has a spacer dividing the interior of the body into an upper chamber and a lower chamber, the spacer being seated on the nose of the user when the user wears the breathable mask through a fastening device, the eyes of the user being received in the upper chamber, and the nose of the user being received in the lower chamber; the body further comprises: an air inlet channel formed between the air inlet pipe and the lower chamber and provided with a first one-way valve, wherein the first one-way valve is arranged on the spacer and only used for fresh air entering from outside to enter the lower chamber through the air inlet channel; an exhaust channel formed between the exhaust pipe and the lower chamber, through which only the dirty air discharged by the user passes and is discharged to the outside; wherein the intake passage is fluidly isolated from the exhaust passage.

A second object of the present invention is to provide a breathable mask that shields the eyes and nose of a user, allows the nose of the user to breathe freely in the mask, and separates the inhaled fresh air from the air flow of the discharged dirty air, so that the carbon dioxide concentration in the mask does not rise. In addition, a nose through part extends outwards below the mask, and a drain valve is arranged to store accumulated water in the mask, so that the accumulated water is far away from nostrils and can be effectively discharged through the drain valve. In order to achieve the above objects, the present invention provides a respiratory mask, comprising a main body and a breathing tube, wherein the breathing tube is in fluid communication with an interior of the main body; the breathing tube comprises an air inlet pipe and an air outlet pipe adjacent to the air inlet pipe, and the body comprises: a main frame; a lens embedded in the main frame; a waterproof sealing skirt, part of which is embedded with the main frame and the lens, wherein the waterproof sealing skirt can be fit to the face of a user; wherein the waterproof sealing skirt has a spacer dividing the interior of the body into an upper chamber and a lower chamber, the spacer being seated on the nose of the user when the user wears the breathable mask through a fastening device, the eyes of the user being received in the upper chamber, and the nose of the user being received in the lower chamber; the body further comprises: an air inlet channel formed between the air inlet pipe and the lower chamber and provided with a first one-way valve for only fresh air entering from outside to enter the lower chamber through the air inlet channel; an exhaust channel formed between the exhaust pipe and the lower chamber, through which only the dirty air discharged by the user passes and is discharged to the outside; a nasal passage portion having one end in fluid communication with the lower chamber and the other end provided with a drain valve.

A third object of the present invention is to provide a breathable mask that shields the eyes and nose of a user, allows the nose of the user to breathe freely in the mask, and separates the inhaled fresh air from the air flow of the discharged dirty air, so that the carbon dioxide concentration in the mask does not rise. In addition, a three-way pipe extends outwards below the mask, one of the three-way pipe is connected with the nose mask part, and the other three-way pipe is provided with a drain valve to accumulate accumulated water in the mask, so that the accumulated water is far away from nostrils and can be effectively discharged through the drain valve, and the other three-way pipe is connected with a mouthpiece to enable the mouth of a user to be contained, so that the wearing stability of the mask can be improved, and the user can breathe through the mouth besides breathing through the nose. In order to achieve the above object, the present invention provides a respiratory mask, comprising a main body and a respiratory tube, wherein the respiratory tube is in fluid communication with an interior of the main body; the breathing tube comprises an air inlet pipe and an air outlet pipe adjacent to the air inlet pipe, and the body comprises: a main frame; a lens embedded in the main frame; a waterproof sealing skirt, part of which is embedded with the main frame and the lens, wherein the waterproof sealing skirt can be fit to the face of a user; wherein the waterproof sealing skirt has a spacer dividing the interior of the body into an upper chamber and a lower chamber, the spacer being seated on the nose of the user when the user wears the breathable mask through a fastening device, the eyes of the user being received in the upper chamber, and the nose of the user being received in the lower chamber; the body further comprises: an air inlet channel formed between the air inlet pipe and the lower chamber and provided with a first one-way valve for only fresh air entering from outside to enter the lower chamber through the air inlet channel; an exhaust channel formed between the exhaust pipe and the lower chamber, through which only the dirty air discharged by the user passes and is discharged to the outside; the three-way pipe is provided with a nasal passage part, a mouth passage part and a water draining part which are in fluid communication with each other, wherein the nasal passage part is in fluid communication with the lower chamber, and when the user wears the breathing mask, the mouth passage part is suitable for holding the mouth of the user.

In order to achieve the three purposes, the nose mask part of the invention can be made of materials with specific hardness or designed with specific shapes, and the nose mask part is not affected by water pressure during use.

Drawings

FIG. 1 is a schematic view of a prior art diving equipment worn by a user.

Fig. 2A is a schematic view of another prior art floating mask.

FIG. 2B is a schematic partial rear view of FIG. 2A showing the intake and exhaust flows.

Fig. 2C is a partial front view of fig. 2A, showing deformation of the nose bag pressed by the water pressure (P).

Fig. 3A is a rear perspective view of the first embodiment of the present invention.

FIG. 3B is a sagittal sectional view taken along line 3B-3B of FIG. 3A.

FIG. 3C is a cross-sectional view of the crown plane taken along line 3C-3C of FIG. 3A, showing the flow of intake air.

Fig. 3D is the same as fig. 3C, but shows the exhaust gas flow.

FIG. 3E is a cross-sectional view taken along line 3E-3E of FIG. 3A showing the cross-sectional shape of the mask portion.

Fig. 4A is a front perspective view of a second embodiment of the present invention.

Fig. 4B is a rear perspective view of fig. 4A.

FIG. 4C is a cross-sectional view of the crown plane taken along line 4C-4C of FIG. 4A showing the flow of intake air.

Fig. 4D is the same as fig. 4C, but shows the exhaust gas flow.

FIG. 4E is a sagittal sectional view taken along line 4E-4E of FIG. 4A.

FIG. 4F is a cross-sectional view taken along line 4F-4F in FIG. 4A.

Fig. 5A is a front perspective view of a third embodiment of the present invention.

Fig. 5B is a rear perspective view of fig. 5A.

FIG. 5C is a sagittal sectional view taken along line 5C-5C of FIG. 5A, showing intake airflow.

FIG. 5D is a cross-sectional view of the crown plane taken along line 5D-5D of FIG. 5A showing exhaust gas flow.

Fig. 6 shows a variation of the tee according to the third embodiment of the present invention.

Fig. 7 shows another variation of the tee according to the third embodiment of the present invention.

Fig. 8A is a schematic view showing another extension variation of the tee according to the third embodiment of the present invention.

Fig. 8B is a rear perspective view of fig. 8A.

In FIG. 8C, FIG. 8A, a sagittal sectional view taken along line 8C-8C shows the intake airflow.

FIG. 8D is a cross-sectional view of the coronal plane taken along line 8D-8D in FIG. 8A showing exhaust gas flow.

The reference numerals are as follows:

1. 5, 10, 20, 30, 60 face masks

2. 4, 12, 22, 32, 62 breathing tube

3. Headband

6. Tunnel

7. Nose bag

8. 151, 251, 351, 651 nose mask portion

11. 21, 31, 61 body

121. 221, 321, 621 air inlet pipe

122. 222, 322, 622 exhaust pipes

13. 23, 33, 63 main frame

14. 24, 34, 64 lens

141. 241, 341, 641 outer peripheral edge

15. 25, 35, 65 waterproof sealing skirt

152. 252, 352, 652 raised areas

153. 253, 353, 653 bottom zone

16. 26, 36, 66 spacer

161. 261, 361, 661 first one-way valve

162. 262, 362, 662 second one-way valve

263. 363, 663 third one-way valve

17. 27, 37, 67 upper chambers

18. 28, 38, 68 lower chamber

19. 29, 39, 69 exhaust tunnels

280. 381, 681 nasal passages

284. 384, 684 drain valve

291. 391 inlet

292. Side wall

380. 480, 580 and 680 three-way pipe

382. 682 mouth through part

383. 583, 683 drainage portion

385. Flexible part

485. Flexible joint

486. Pleated part

685. Base seat

687. First connecting part

688. Second connecting part

690. Baffle plate

691. Buckle

692. Gap of

695. Flow guiding wing

398. 698 mouthpiece

(N) user's nose (nostril)

(M) user's mouth

(P) Water pressure

Detailed Description

The first embodiment of the present invention mainly provides a breathable mask that covers the eyes and nose of a user, allows the nose of the user to breathe freely in the mask, and separates the inhaled fresh air from the air flow of the discharged dirty air.

As shown in fig. 3A-3E, a respiratory mask 10 includes a body 11 and a breathing tube 12, the breathing tube 12 being in fluid communication with an interior of the body 11; the breathing tube 12 includes an air inlet tube 121 and an air outlet tube 122 adjacent to the air inlet tube 121; preferably, the breathing tube 12 is made of hard material, and the two exhaust pipes 122 are respectively arranged at the left side and the right side of the air inlet pipe 121 and are formed in the breathing tube 12 together with the air inlet pipe 121. The body 11 includes: a main frame 13; a lens 14 embedded in the main frame 13; a waterproof sealing skirt 15, part of which is embedded with the main frame 13 and the lens 14, wherein the waterproof sealing skirt 15 is suitable for being attached to the face of a user; wherein the waterproof sealing skirt 15 has a spacer 16 dividing the interior of the body into an upper chamber 17 and a lower chamber 18, the spacer 16 being seated on the nose of the user, the eyes of the user being accommodated in the upper chamber 17, and the nose of the user being accommodated in the lower chamber 18, when the user wears the breathable mask 10 by a fastening means (i.e., elastic headband, not shown); the body 11 further comprises: an air inlet channel formed between the air inlet pipe 121 and the lower chamber 18 and provided with a first check valve 161, wherein the first check valve 161 is arranged on the spacer 16, and the first check valve 161 only allows fresh air entering from outside to enter the lower chamber 18 through the air inlet channel; an exhaust passage formed between the exhaust pipe 122 and the lower chamber 18 through which only the dirty air discharged by the user passes to be discharged to the outside; wherein the intake passage is fluidly isolated from the exhaust passage.

In order to prevent a small amount of dirty air in the exhaust passage, which is defined by the upper chamber 17 and the first one-way valve 161, from flowing back into the lower chamber 18 and mixing with fresh air inhaled by the user during the next breathing cycle, causing a small amount of carbon dioxide to accumulate in the mask, a second one-way valve 162 may be additionally provided, wherein the exhaust passage is defined by the second one-way valve 162 and an exhaust tunnel 19; wherein the vent tunnel 19 is formed by the waterproof sealing skirt 15 and a peripheral edge 141 of the lens 14, as shown in fig. 3A-3C. As further shown in fig. 3C, the second check valve 162 is disposed on the spacer 16 below the first check valve 161. When the nose (N) of the user inhales, fresh air is supplied from the air inlet pipe 121 through the upper chamber 17, through the first check valve 161, and into the lower chamber 18 for inhalation by the nose of the user; as shown in FIG. 3D, when the user's nose (N) is breathing, dirty air may be exhausted through the second one-way valve 162, through the exhaust tunnel 19, and into the exhaust duct 122.

The waterproof sealing skirt 15 further comprises a nose mask portion 151, which delimits the lower chamber 18 together with the spacer 16; wherein the mask portion 151 has a protruding region 152 and a bottom region 153, the bottom region 153 is adapted to correspond to the nostril of the user, as shown in fig. 3B. In order to prevent the nose mask portion 151 from being deformed by the water pressure, the nose mask portion 151 is preferably made of a hard material and has a Shore D hardness of 50 to 90, and is selected from a material such as Polycarbonate (PC), polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), acrylonitrile-butadiene-styrene copolymer (Acrylonitrile Butadiene Styrene, ABS), or a combination thereof. As shown in fig. 3B and 3E, the nose mask 151 may also be made of a softer material, having a Shore a hardness of 30-95, and being formed in a specific shape, in particular, the protruding area protrudes forward from the rear edge of the main frame 13 to have a single peak cross-sectional shape. Wherein the maximum height (Nh) of the cross-sectional shape of the single peak is between 20mm and 35 mm; or from the protruding region from the rear edge of the main frame 13, protrudes forward beyond the lower outer edge of the main frame 13 by a maximum extent (Nt) of between 5mm and 20 mm.

The second embodiment of the present invention is different from the first embodiment mainly in that the second embodiment is in the lower chamber of the mask, and is in fluid communication with a nasal passage portion, and a drain valve is provided on the nasal passage portion, so that water accumulated in the mask can be stored in space and can be discharged through the drain valve, and gas discharged from the nose can be partially discharged through the drain valve, so that water discharge and gas discharge are smoother.

Specifically, as shown in fig. 4A-4F, a respiratory mask 20 comprises a body 21 and a breathing tube 22, the breathing tube 22 being in fluid communication with an interior of the body 21; the breathing tube 22 includes an air inlet tube 221 and an air outlet tube 222 adjacent to the air inlet tube 221, and the main body 21 includes: a main frame 23; a lens 24 embedded in the main frame 23; a waterproof sealing skirt 25 partially engaged with the main frame 23 and the lens 24, the waterproof sealing skirt 25 being adapted to fit a user's face; wherein the waterproof sealing skirt 25 has a spacer 26 dividing the interior of the body 21 into an upper chamber 27 and a lower chamber 28, the spacer 26 being seated on the nose of the user, the eyes of the user being accommodated in the upper chamber 27, and the nose of the user being accommodated in the lower chamber 28, when the user wears the respiratory mask 20 by a fastening means (i.e., elastic headband, not shown); the body 21 further comprises: an air inlet channel formed between the air inlet pipe 221 and the lower chamber 28, and provided with a first one-way valve 261, wherein the first one-way valve 261 allows only fresh air entering from outside to enter the lower chamber 28 through the air inlet channel; an exhaust passage formed between the exhaust pipe 222 and the lower chamber 28, through which only the dirty air discharged by the user passes to be discharged to the outside; a nasal passage 280 having one end in fluid communication with the lower chamber 28 and the other end provided with a drain valve 284.

Preferably, as shown in fig. 4C and 4D, the respiratory mask 20 further comprises a second one-way valve 262, wherein the air intake passage is defined by the upper chamber 27 and the first one-way valve 261, and the air exhaust passage is defined by the second one-way valve 262 and an exhaust tunnel 29; wherein the vent tunnel 29 is formed by the waterproof sealing skirt 25 in combination with a peripheral edge 241 of the lens 24. In this embodiment, the first check valve 261 is disposed on the side wall 292 of the inlet 291 of the exhaust tunnel 29, and the second check valve 262 is disposed inside the inlet 291 of the exhaust tunnel 29, so that when the user inhales, fresh air can flow from the air inlet pipe 221, through the upper chamber 27, through the first check valve 261, through the inlet 291 of the exhaust tunnel 29, and into the lower chamber 28 for inhalation by the nose (N) of the user, as shown in fig. 4C; when the user's nose (N) is breathing, a portion of the dirty air may be expelled through the second one-way valve 262, through the exhaust tunnel 29, and into the exhaust duct 222, as shown in fig. 4D.

Referring also to fig. 4D and 4E, the waterproof sealing skirt 25 further includes a nose cap portion 251, which together with the spacer 26 defines the lower chamber 28; wherein the mask portion 251 has a protruding region 252 and a bottom region 253, the bottom region 253 is adapted to correspond to the nostril of the user. The nasal passages 280 are in fluid communication with the lower chamber 28 through the bottom region 253. To ensure that dirty air and water can remain at the bottom of the nasal passages 280 without returning to the lower chamber 28, and more preferably, the bottom region is provided with a third one-way valve 263, allowing fluid to pass from the lower chamber 28 through the third one-way valve 263 only and into the nasal passages 280; when the user's nose is breathing, a portion of the dirty air may be discharged through the third check valve 263 via the drain valve 284 of the nasal passage 280.

The nose mask portion 251 and the nose through portion 280 are made of hard materials, and have a Shore D hardness of 50-90, and are selected from Polycarbonate (PC), polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), acrylonitrile-butadiene-styrene copolymer (Acrylonitrile Butadiene Styrene, ABS), and the like, or combinations thereof. As shown in fig. 4F, the nose mask portion 251 and the nose through portion 280 may also be made of soft material, and have a Shore a hardness of 30-95, and the protruding area 252 protrudes forward from the rear edge of the main frame 23 to have a cross-sectional shape with a single peak. Wherein the single peak has a cross-sectional shape with a maximum height (Nh) of between 20mm and 35 mm; alternatively, the raised area 252 protrudes forward from the rear edge of the main frame 23 beyond the maximum extent (Nt) of the lower outer edge of the main frame 23, between 5mm and 20 mm.

The third embodiment of the present invention is different from the first embodiment mainly in that the third embodiment is in the lower chamber of the mask, and is in fluid communication with a three-way pipe, and the three-way pipe is provided with a mouthpiece and a drain valve, so that not only can the mouth of a user hold the mouthpiece, but also the mouth of the user has more safety, can store accumulated water in the mask, can be discharged through the drain valve, and can discharge a part of gas discharged by the nose through the drain valve, thereby ensuring smoother drainage and gas discharge.

Specifically, as shown in fig. 5A-5D, a respiratory mask 30 comprises a body 31 and a breathing tube 32, the breathing tube 32 being in fluid communication with an interior of the body 31; the breathing tube 32 includes an air inlet pipe 321 and an air outlet pipe 322 adjacent to the air inlet pipe 321, and the main body 31 includes: a main frame 33; a lens 34 embedded in the main frame 33; a waterproof sealing skirt 35 partially engaged with the main frame 33 and the lens 34, the waterproof sealing skirt 35 being adapted to fit a user's face; wherein the waterproof sealing skirt 35 has a spacer 36 dividing the interior of the body 31 into an upper chamber 37 and a lower chamber 38, the spacer 36 being seated on the nose of the user, the eyes of the user being accommodated in the upper chamber 37, and the nose of the user being accommodated in the lower chamber 38, when the user wears the breathable mask by a fastening means (i.e., elastic headband, not shown); the body 31 further comprises: an air inlet channel formed between the air inlet pipe 321 and the lower chamber 38, and provided with a first check valve 361, wherein the first check valve 361 only allows fresh air entering from outside to enter the lower chamber 38 through the air inlet channel; an exhaust passage formed between the exhaust pipe 322 and the lower chamber 38 through which only the dirty air discharged by the user is discharged to the outside; the three-way tube 380 has a nasal passage portion 381, a mouth passage portion 382 and a drain portion 383 in fluid communication with each other, wherein the nasal passage portion 381 is in fluid communication with the lower chamber 38, and a mouthpiece 398 is provided on the mouth passage portion 382 to allow the mouth of the user to be held when the user wears the respiratory mask 30. The drain 383 drains water and discharges air downward and forward. In order to isolate the dirty air more effectively, a second check valve 362 may be added in this embodiment, wherein the air inlet channel is defined by the upper chamber 38 and the first check valve 361, and the air outlet channel is defined by the second check valve 362 and an air outlet tunnel 39; wherein the vent tunnel 39 is formed by the waterproof sealing skirt 35 and a periphery 341 of the lens 34.

Preferably, as shown in fig. 5B-5D, a first check valve 361 is provided on the spacer 36, and the second check valve 362 is provided at the inlet 391 of the exhaust tunnel 39, so that when the nose (N) of the user inhales (fig. 5C), fresh air is supplied from the air inlet pipe 321, through the upper chamber 37, through the first check valve 361, and into the lower chamber 38 for inhalation by the nose of the user; when the user's nose (N) is breathing (fig. 5D), a portion of the dirty air may be exhausted through the second check valve 362, into the exhaust duct 322 via the exhaust tunnel 39. The waterproof sealing skirt 35 further comprises a nose mask portion 351 which, together with the spacer 36, defines the lower chamber 38; wherein the mask portion 351 has a protruding region 352 and a bottom region 353, the bottom region 353 being adapted to correspond to the nostril of the user. The nasal passages 381 are in fluid communication with the lower chamber 38 through the bottom region 353. More preferably, the nose mask portion 351 is made of a hard material and has a Shore D hardness of 50-90, and is selected from the group consisting of Polycarbonate (PC), polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), acrylonitrile-butadiene-styrene copolymer (Acrylonitrile Butadiene Styrene, ABS), and combinations thereof. As shown in fig. 5C, the nose mask portion 351 may also be made of a soft material having a Shore a hardness of 30-95, and the protruding area 352 may protrude forward from the rear edge of the main frame 33 to have a cross-sectional shape with a single peak. Wherein the single peak has a cross-sectional shape with a maximum height (Nh) of between 20mm and 35 mm; alternatively, the raised area 352 protrudes forward from the rear edge of the main frame 33 beyond the maximum extent (Nt) of the lower outer edge of the main frame 33, between 5mm and 20 mm.

In order to fit the face of different users and make the users wear more comfortable, a flexible portion 385 is provided between the nose portion 381 and the bottom portion 353 to facilitate the movable range of the tee. The bottom section is provided with a third one-way valve 363 allowing fluid to pass only from the lower chamber 38 through the third one-way valve 363 into the nasal passages 381; when the user's mouth (M) inhales (fig. 5C), fresh air is supplied to the user through the third check valve 363 and the mouth opening 382; when the user's nose (N) is breathing (fig. 5D), dirty air can be properly discharged through the third check valve 363, through the nasal passage 381, to the drain 383; when the user's mouth (M) is breathing (fig. 5D), the dirty air is directed toward the drain 383, and is discharged from the drain 384 together with the water accumulated in the tee 380 (which is usually concentrated mainly in the drain 383). And the dirty air and the accumulated water discharged from the mouth are blocked by the third check valve 363 and are not sprayed back into the lower chamber 38.

The design of the flexible portion 385 is not limited to this, and the flexible portion 485 is formed with a separate flexible joint 485 having a pleated portion 486, which further increases the range of motion of the tee 480, as shown in fig. 6. However, the design of the three-way pipe is not limited to this, and as shown in fig. 7, the internal space of the drain 583 in the three-way pipe 580 may be enlarged to accumulate more accumulated water penetrating into the mask, and at this time, the drain 583 drains and exhausts downward.

Continuing with the third embodiment of the present invention, the design of the tee can also be changed as shown in fig. 8A to 8D, so that when the user spouts in the water, the bubbles of the water and the air can be discharged, and the bubbles can not go upwards, but face to the two sides of the face of the user, so that the sight of the user for viewing the scenery in the water can not be obstructed.

As shown in fig. 8A-8D, a respiratory mask 60 includes a body 61 and a breathing tube 62, the breathing tube 62 being in fluid communication with an interior of the body 61; the breathing tube 62 includes an air inlet pipe 621 and an air outlet pipe 622 adjacent to the air inlet pipe 621, and the main body 61 includes: a main frame 63; a lens 64 embedded in the main frame 63; a waterproof sealing skirt 65 partially engaged with the main frame 63 and the lens 64, the waterproof sealing skirt 65 being adapted to fit a user's face; wherein the waterproof sealing skirt 65 has a spacer 66 dividing the interior of the body 61 into an upper chamber 67 and a lower chamber 68, the spacer 66 being seated on the nose of the user, the eyes of the user being accommodated in the upper chamber 67, and the nose of the user being accommodated in the lower chamber 68, when the user wears the breathable mask 60 by a fastening means (i.e., elastic headband, not shown); the body 61 further comprises: an air inlet passage formed between the air inlet pipe 621 and the lower chamber 68, and provided with a first check valve 661, the first check valve 661 allowing only fresh air introduced from the outside to pass through the air inlet passage and enter the lower chamber 68; an exhaust passage formed between the exhaust pipe 622 and the lower chamber 68 through which only the dirty air discharged by the user passes to be discharged to the outside; a tee 680 having a nasal passage 681, a mouth passage 682 and a drain 683 in fluid communication with each other, wherein the nasal passage 681 is in fluid communication with the lower chamber 68, the mouth passage 682 being adapted to hold the mouth of the user when the user wears the respiratory mask 60. The drain 683 drains water and discharges air downward and forward. The inlet channel is defined by the upper chamber 68 and the first check valve 661, while the outlet channel is defined by the second check valve 662 and an outlet tunnel 69; wherein the vent tunnel 69 is formed by the waterproof sealing skirt 65 and a peripheral edge 641 of the lens 64.

The above measures are almost the same as in the embodiment of fig. 5A-5D, with the third embodiment of the present extension, only the portion of tee 680 being modified. Specifically, drain 683 of tee 680 includes: a base 685 extending downward from the nose through portion 681, the base 685 having a first connecting portion 687 and a second connecting portion 688 opposite to the first connecting portion 687, the first connecting portion 687 being adapted to receive a drain valve 684 therein, the mouth through portion 682 being defined by the second connecting portion 688 and a mouthpiece 698. The drain portion 683 further comprises a flap 690, the drain valve 684 and the first connection portion 687 together define the drain portion 683; the flap 690 extends downward from the nasal opening and faces the drain valve 684, and the flap 690 is connected to the drain valve 684 by a snap 691 to form a gap 692, through which gap 692 dirty air or water can be laterally discharged when the user is breathing. More preferably, the baffle 690 has guide wings 695 on both sides to assist in draining and exhausting, and has better effect of preventing bubbles from directly upward.

Further description of the intake and exhaust flows follows. A first one-way valve 661 is provided on the spacer 66, and when the user's nose (N) inhales (fig. 8C), fresh air is allowed to pass from the inlet pipe 621, through the upper chamber 67, through the first one-way valve 661, and into the lower chamber 68 for inhalation by the user's nose; when the user's nose (N) is breathing (fig. 8D), a portion of the dirty air may be exhausted through the exhaust tunnel 69 into the exhaust pipe 622 via the second check valve 662 provided at the inlet of the exhaust tunnel 69. The waterproof sealing skirt 65 further includes a nose cup portion 651 that cooperates with the spacer 66 to define the lower chamber 68; wherein the mask portion 651 has a raised area 652 and a bottom area 653, the bottom area 653 being adapted to correspond to the nostril of the user. The nasal passages 681 are in fluid communication with the lower chamber 68 through the bottom region 653.

More preferably, the bottom region is provided with a third one-way valve 663, allowing fluid to pass only from the lower chamber 68 through the third one-way valve 663 and into the nasal passage 681; when the user's mouth (M) inhales (fig. 8C), fresh air is supplied to the user through the third check valve 663 and the mouth opening 682; when the user's nose (N) is breathing (fig. 8D), dirty air can be properly discharged through the third check valve 663, through the nasal passage 681, to the drain 683; when the user's mouth (M) is breathing (fig. 8D), dirty air is directed toward the drain 683 and is discharged from the drain 683 together with water accumulated in the tee 680 (which is usually concentrated mainly in the drain 683). The air and water discharged through the water discharge portion 683 will first strike the baffle 690 and then be discharged downward and outward along the guide wings 695 on both sides. And the dirty air and the accumulated water discharged from the mouth are blocked by the third check valve 663 and are not sprayed back into the lower chamber 68.

As for the nose cup portion 651 of the present extended third embodiment, the range of material choices and cross-sectional shapes are similar to those of the previous embodiments. Specifically, the nose cup 651 is made of a hard material, and has a Shore D hardness of 50 to 90, and is selected from a material such as Polycarbonate (PC), polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), and acrylonitrile-butadiene-styrene copolymer (Acrylonitrile Butadiene Styrene, ABS), or a combination thereof. If the nose cup 651 is made of soft material and has a Shore a hardness of 30-95, the protruding area 652 protrudes forward from the rear edge of the main frame 63 to have a cross-sectional shape with a single peak, and the maximum height (Nh) of the cross-sectional shape is between 20mm and 35 mm; alternatively, the raised region 652 may bulge forward from the rear edge of the main frame 63 beyond the maximum extent (Nt) of the lower outer edge of the main frame 63, between 5mm and 20 mm.

In addition to the above detailed description of the preferred embodiments and the manner in which the features of the invention are achieved, the following further display list of possible variations to better define the scope of the invention, but should not be taken as limiting the scope of the invention as claimed in the appended claims:

the air inlet and outlet mechanisms of the above embodiments, such as the first check valve, the second check valve, the air inlet channel, the air outlet tunnel, and the air outlet pipe, are all symmetrically disposed in the mask as the best mode, only one of them is selected for illustration, and the number is not limited for convenience.

The breathing tube is optimally selected by using the top part which can exchange air with the outside on the water surface and the top part which can block the air exchange with the outside under the water surface, such as a dry breathing tube, but is not limited in form and position.

The headband is similar to that shown in FIG. 2A, but is not limited in form and is not shown in the drawings of the present invention to avoid obscuring the description.

The two first check valves are preferably symmetrically disposed on or on either side of the spacer. The second check valve is provided to enable the air intake and exhaust flow division to be more complete, so that a small amount of dirty air accumulated in the exhaust passage during the breathing of a user is not mixed with clean air in the next inhalation cycle, but is not required.

The main frame and the lens are not limited to only shielding eyes of a user, but also shielding the eyes and nose of the user in a changeable manner is also feasible. Lenses which cover eyes only are not limited to single lenses which are connected left and right, and two lenses which are independent respectively left and right are also feasible.

The third one-way valve is not limited to be arranged in the bottom area, and can be arranged at any position of the nasal passage part, so long as the measure of preventing the fluid of the nasal passage part from flowing back to the lower chamber can be adopted. The third check valve is not necessarily installed.

The tee pipe and the baffle are not limited in any way.

The first, second and third one-way valves are not limited in any way, and may be mushroom-type (circular), pivot-type (generally square), or other valve devices that provide only one-way fluid communication.

The waterproof sealing skirt is not necessarily integrally formed; for example, the protruding region and the bottom region of the nose mask portion may be separate members, or the three-way tube and the nose mask portion may be separate members, so long as they are substantially waterproof after assembly.

The nose mask part made of the soft material has a plurality of functions of enabling a user to pinch and stabilize pressure (such as flange flat pressure).

Claims

1. A breathable mask comprising a body and a breathing tube in fluid communication with an interior of the body; the breathing tube comprises an air inlet pipe and an air outlet pipe adjacent to the air inlet pipe, and the body comprises:

a main frame;

a lens embedded in the main frame;

a waterproof sealing skirt, part of which is embedded with the main frame and the lens, wherein the waterproof sealing skirt can be fit to the face of a user; wherein the waterproof sealing skirt has a spacer dividing the interior of the body into an upper chamber and a lower chamber, the spacer being seated on the nose of the user when the user wears the breathable mask through a fastening device, the eyes of the user being received in the upper chamber, and the nose of the user being received in the lower chamber;

characterized in that the body further comprises:

an air inlet channel formed between the air inlet pipe and the lower chamber and provided with a first one-way valve, wherein the first one-way valve is arranged on the spacer and only used for fresh air entering from outside to enter the lower chamber through the air inlet channel;

an exhaust channel formed between the exhaust pipe and the lower chamber, through which only the dirty air discharged by the user passes and is discharged to the outside;

Wherein the intake passage and the exhaust passage are independent of each other.

2. The respiratory mask of claim 1 further comprising a second one-way valve, wherein the inlet passageway is defined by the upper chamber and the first one-way valve and the outlet passageway is defined by the second one-way valve and an outlet tunnel; wherein the exhaust tunnel is formed by the waterproof sealing skirt and a periphery of the lens.

3. The respiratory mask of claim 2 wherein the second one-way valve is provided on the spacer such that when the user inhales, fresh air is available from the air inlet tube, through the upper chamber, through the first one-way valve, and into the lower chamber for inhalation by the user's nose; when the nose of the user is breathing, dirty air can be discharged through the second one-way valve, through the exhaust tunnel and into the exhaust pipe.

4. The breathable mask of claim 1 wherein the waterproof sealing skirt further comprises a nose cup portion that cooperates with the spacer to define the lower chamber; wherein the nose mask portion has a protruding region and a bottom region adapted to correspond to the nostril of the user.

5. The respiratory mask of claim 4 wherein the mask portion is made of a hard material having a shore D hardness of 50-90 and is selected from the group consisting of polycarbonate, polypropylene, polyethylene, polyvinyl chloride, acrylonitrile butadiene styrene copolymer, and combinations thereof.

6. The respiratory mask of claim 4 wherein the mask portion is made of a soft material having a shore a hardness of 30-95 and the raised area is raised forward from the rear edge of the main frame to have a single peak cross-sectional shape.

7. The respiratory mask of claim 6 wherein the single peak has a cross-sectional shape with a maximum height of between 20mm and 35 mm.

8. The respiratory mask of claim 6 wherein the raised area projects forward from the rear edge of the main frame beyond the lower outer edge of the main frame by a maximum extent of between 5mm and 20 mm.

9. A breathable mask comprising a body and a breathing tube in fluid communication with an interior of the body; the breathing tube comprises an air inlet pipe and an air outlet pipe adjacent to the air inlet pipe, and the body comprises:

a main frame;

a lens embedded in the main frame;

Characterized in that the body further comprises:

an air inlet channel formed between the air inlet pipe and the lower chamber and provided with a first one-way valve for only fresh air entering from outside to enter the lower chamber through the air inlet channel;

a nasal passage portion having one end in fluid communication with the lower chamber and the other end provided with a drain valve.

10. The respiratory mask of claim 9 further comprising a second one-way valve, wherein the inlet passageway is defined by the upper chamber and the first one-way valve and the outlet passageway is defined by the second one-way valve and an outlet tunnel; wherein the exhaust tunnel is formed by the waterproof sealing skirt and a periphery of the lens.

11. The respiratory mask of claim 10 wherein the first one-way valve is disposed on an inlet sidewall of the exhaust tunnel and the second one-way valve is disposed inside the inlet of the exhaust tunnel, fresh air being adapted to flow from the air inlet tube, through the upper chamber, through the first one-way valve, through the inlet of the exhaust tunnel, and into the lower chamber for inhalation by the nose of the user when the user inhales; when the nose of the user is breathing, a part of dirty air can be discharged through the second one-way valve, and enter the exhaust pipe through the exhaust tunnel.

12. The breathable mask of claim 9 wherein the waterproof sealing skirt further comprises a nose cup portion that cooperates with the spacer to define the lower chamber; wherein the nose mask portion has a protruding region and a bottom region adapted to correspond to the nostril of the user.

13. The respiratory mask of claim 10 wherein the nasal passage is in fluid communication with the lower chamber through the bottom region.

14. The respiratory mask of claim 13 wherein the bottom section is provided with a third one-way valve allowing fluid to pass only from the lower chamber through the third one-way valve into the nasal passages; when the nose of the user is breathing, a part of dirty air can be discharged through the third one-way valve and the drain valve of the nasal passage.

15. The respiratory mask of claim 12 wherein the mask portion and the nose piece portion are each made of a hard material having a shore D hardness of 50-90 and are selected from the group consisting of polycarbonate, polypropylene, polyethylene, polyvinyl chloride, acrylonitrile-butadiene-styrene copolymer, and combinations thereof.

16. The respiratory mask of claim 12 wherein the mask portion is made of a soft material having a shore a hardness of 30-95 and the raised area is anteriorly and anteriorly raised from the rear edge of the main frame to have a single peak cross-sectional shape.

17. The respiratory mask of claim 16 wherein the single peak has a cross-sectional shape with a maximum height of between 20mm and 35 mm.

18. The respiratory mask of claim 16 wherein the raised area projects forward from the rear edge of the main frame beyond the lower outer edge of the main frame by a maximum extent of between 5mm and 20 mm.

19. A breathable mask comprising a body and a breathing tube in fluid communication with an interior of the body; the breathing tube comprises an air inlet pipe and an air outlet pipe adjacent to the air inlet pipe, and the body comprises:

a main frame;

a lens embedded in the main frame;

characterized in that the body further comprises:

the three-way pipe is provided with a nasal passage part, a mouth passage part and a water draining part which are in fluid communication with each other, wherein the nasal passage part is in fluid communication with the lower chamber, and when the user wears the breathing mask, the mouth passage part is suitable for holding the mouth of the user.

20. The breathable mask of claim 19 wherein the drain portion drains and vents downwardly and forwardly.

21. The respiratory mask of claim 19 further comprising a second one-way valve, wherein the inlet passageway is defined by the upper chamber and the first one-way valve and the outlet passageway is defined by the second one-way valve and an outlet tunnel; wherein the exhaust tunnel is formed by the waterproof sealing skirt and a periphery of the lens.

22. The respiratory mask of claim 21 wherein the first one-way valve is disposed on the spacer and the second one-way valve is disposed at an inlet of the exhaust tunnel, fresh air being adapted to pass from the air inlet tube, through the upper chamber, through the first one-way valve, and into the lower chamber for inhalation by the nose of the user when the nose of the user inhales; when the nose of the user is breathing, a part of dirty air can be discharged through the second one-way valve, and enter the exhaust pipe through the exhaust tunnel.

23. The breathable mask of claim 19 wherein the waterproof sealing skirt further comprises a nose cup portion that cooperates with the spacer to define the lower chamber; wherein the nose mask portion has a protruding region and a bottom region adapted to correspond to the nostril of the user.

24. The respiratory mask of claim 23 wherein the nasal passage is in fluid communication with the lower chamber through the bottom region.

25. The respiratory mask of claim 24 wherein a flexible portion is provided between the nasal opening and the bottom portion to facilitate the range of motion of the tee.

26. The respiratory mask of claim 25 wherein the bottom section is provided with a third one-way valve allowing fluid to pass only from the lower chamber through the third one-way valve into the nasal passages; when the mouth of the user inhales, fresh air can be supplied to the user through the third one-way valve and the mouth through part; when the nose of the user is breathing, dirty air can pass through the third one-way valve, pass through the nasal passage part and reach the water draining part to be discharged; when the mouth of the user spouts, dirty air can directly face the water draining part and is discharged together with accumulated water in the three-way pipe.

27. The breathable mask of claim 19 wherein the drain portion drains and vents downward.

28. The respiratory mask of claim 19 further comprising a second one-way valve, wherein the inlet passageway is defined by the upper chamber and the first one-way valve and the outlet passageway is defined by the second one-way valve and an outlet tunnel; wherein the exhaust tunnel is formed by the waterproof sealing skirt and a periphery of the lens.

29. The respiratory mask of claim 27 wherein the drain comprises: the base extends downwards from the nose through part and is provided with a first connecting part and a second connecting part opposite to the first connecting part, the first connecting part can accommodate a drain valve to be fixed in, and the mouth through part is defined by the second connecting part and a mouthpiece.

30. The respiratory mask of claim 29 wherein the drain portion further comprises a baffle, the drain valve and the first connection portion together defining the drain portion; the baffle sheet extends downwards from the nose through part and faces the drain valve, and the baffle sheet is connected with the drain valve in a buckling way to form a gap; when the user exhales, dirty air or water can be discharged from the side through the gap.

31. The respiratory mask of claim 23 wherein the mask portion is made of a hard material having a shore D hardness of 50-90 and is selected from the group consisting of polycarbonate, polypropylene, polyethylene, polyvinyl chloride, acrylonitrile butadiene styrene copolymer, and combinations thereof.

32. The respiratory mask of claim 23 wherein the mask portion is made of a soft material having a shore a hardness of 30-95 and the raised area is anteriorly and anteriorly raised from the rear edge of the main frame to have a single peak cross-sectional shape.

33. The respiratory mask of claim 32 wherein the single peak has a cross-sectional shape with a maximum height of between 20mm and 35 mm.

34. The respiratory mask of claim 32 wherein the raised area projects forward from the rear edge of the main frame beyond the lower outer edge of the main frame by a maximum extent of between 5mm and 20 mm.