Breathable mask and structure of your body

Abstract

A breathable mask (10, 20, 30, 40, 50) comprises a body including a main frame (13, 23, 33, 43, 53), a lens (14, 24, 34, 44, 54), and a waterproof seal enclosure (15, 25, 35, 45, 55). The waterproof seal enclosure comprises a partition dividing the interior of the body into an upper chamber (17, 27, 37, 47, 57) and a lower chamber (18, 28, 38, 48, 58). A bridge (151, 252, 351, 451, 551) is provided to further divide the lower chamber into a nasal chamber (181, 281, 381, 481, 581) and a mouth chamber (182, 282, 382, ​​482, 582) below the nasal chamber. When the user puts on the mask, their nose and mouth are accommodated in the nasal chamber and the mouth chamber, respectively. The nasal chamber and the mouth chamber are capable of fluid communication through the bridge.

Description

BACKGROUND OF THE INVENTIONField of the invention

[0001] The present invention is a full face mask, particularly a breathable mask for snorkeling. Descriptions of the state of the art

[0002] To allow the user's mouth and nose to breathe freely, inhale as much fresh air as possible, and prevent the used air exhaled by the user from mixing with fresh air upon entering the next inhalation cycle, the mask body of the current full-face snorkel mask (FFSM) is divided into an upper chamber covering the user's eyes and a lower chamber covering the user's mouth and nose. This allows the inhaled fresh air to flow unidirectionally through the upper chamber into the lower chamber. Most of the used air exhaled by the user can be exhausted through an independent exhaust duct. Sections of the exhaust ducts are independently installed around the periphery of the upper chamber and communicate with the breathing tube, allowing the exhausted air to flow directly out through the breathing tube and not remain in the upper chamber.In this way, the used air is not re-inhaled and flows into the lower chamber during the user's next inhalation, preventing carbon dioxide from being present in the fresh air of the next inhalation cycle. Several patents, such as US 10 556 654 B2 and US 11 358 012 B2, have disclosed such a spatial arrangement.

[0003] However, with each inhalation and exhalation cycle, it is inevitable that a certain amount of used, carbon dioxide-rich air remains in the exhaust port and the lower chamber. This amount of used air is inhaled along with fresh air in the next inhalation cycle. Therefore, even though there is a separate structure for the air inlet and outlet, the air inhaled during each breathing cycle is still not fresh enough. When snorkeling, carbon dioxide accumulates in the mask. In addition, when the mask is actually used in water, it is inevitable that water will accumulate in the lower chamber. When the user exhales forcefully through the mouth, hoping that the accumulated water can drain from the purge valve, the water will splash back towards the nostrils because both the user's mouth and nose share a chamber.This is very uncomfortable for the user and can even lead to the feeling of suffocation. Therefore, there is still plenty of room for improvement in such masks.

[0004] In addition, existing FFSMs must overcome the strong water pressure, as they must be drained into the water through the purge valve, which is almost impossible in reality. Therefore, it is also impossible to remove the accumulated water in the mask simply by the user exhaling forcefully into the water. To solve this problem, it is often necessary to raise the head or stand up to keep the mask out of the water and drain the accumulated water downward through the purge valve (located according to the position of the user's chin). This is extremely inconvenient and energy-consuming, and also results in less enjoyment of snorkeling.

[0005] US 2021 / 0 086 882 A1 relates to a diving mask comprising a body and a snorkel. One object of this application is to provide a snorkel mask that allows for smooth breathing through the nose and / or mouth, prevents fogging of the viewing area, and allows for pressure equalization as often as necessary.

[0006] In view of this, solving the above-mentioned problems, i.e. improving the reliability of bypassing incoming fresh air and expelling stale air, has become the unanimous goal of the industry. SUMMARY OF THE INVENTION

[0007] The problem is solved by the subject matter of independent claims 1 to 3. Claim 4 represents an advantageous embodiment.

[0008] One solution of the present invention is to provide a breathable mask equipped with a bridge in the lower chamber that accommodates the user's mouth and nose. In this way, the lower chamber is further divided into a nasal chamber and an oral chamber, with the inlet airflow being directed to the nasal chamber and the outlet airflow being directed from the nasal chamber or the oral chamber. Furthermore, the nasal chamber and the oral chamber are conditionally communicated with each other by providing an opening or openings or by providing a one-way valve at the opening(s) that only allows fluid to flow from the nasal chamber to the oral chamber. Meanwhile, the lower chamber is originally an independent cavity.By inserting the bridge, the lower chamber has been significantly reinforced in its structure, so that at the front of the mask in the mouth and nose area below the visor, it is important to consider not inserting too many hard parts, such as the bracket that connects the visor frame and the purge valve frame. The strength of the entire mask is still sufficient, and the soft cover section will not collapse under water pressure during use.

[0009] Regarding the path of inhalation airflow, when the nose inhales, fresh air from the inlet pipe can enter the nasal chamber and directly enter the user's nasal chamber; when the mouth inhales, fresh air from the inlet pipe can enter the nasal chamber, then enters the oral chamber and then into the user's mouth. Regarding the path of exhalation airflow, if the exhaust port is connected to the nasal chamber, when the nose exhales, part of the used air passes through the exhaust port and is discharged to the outside, and the other part of the used air enters the oral chamber and is then discharged to the outside through the purge valve. When the mouth exhales forcefully, the used air is discharged into the water through the purge valve and does not return to the nasal chamber because it is blocked by the one-way valve of the bridge.If the exhaust port is connected to the oral chamber, the used air first enters the oral chamber when exhaling from the nose. Most of it passes through the exhaust port and is discharged to the outside, and the other small part can be discharged into the water through the purge valve. When exhaling from the mouth, most of the exhaled used air is discharged through the exhaust port, and a small part is discharged into the water through the purge valve and does not return to the nasal chamber. Therefore, such a design allows the user to inhale and exhale freely through the nose or mouth.When the user chooses to inhale through the nose, the user is able to inhale almost 100% fresh air because the inhalation airflow is completely independent of the exhalation airflow; and when the user chooses to inhale through the mouth, the accumulated stale air in the oral chamber is also greatly reduced because the volume of the oral chamber is relatively small so that the large amount of fresh air coming from the nasal chamber through the bridge is not replaced.

[0010] To achieve the above object, the present invention more particularly provides a breathable mask comprising a body and at least one breathing tube. The breathing tube is in fluid communication with the interior of the body. The at least one breathing tube includes an inlet conduit and an outlet conduit independent of the inlet conduit. The body includes: a main frame; a visor mounted within the main frame; a watertight sealing enclosure at least partially attached to the main frame and the visor. The watertight sealing enclosure is suitable for attachment to the face of a user; wherein the watertight sealing enclosure has a partition to separate the interior of the body into an upper chamber and a lower chamber.When the user puts on the breathable mask through a fastening device, the partition sits on the user's nose, the user's eyes are accommodated in the upper chamber, and the user's nose and mouth are accommodated in the lower chamber. An inlet channel is formed from the inlet line of the breathing tube to the lower chamber, and an outlet channel is formed from the lower chamber to the outlet line of the breathing tube. The invention is characterized in that the watertight sealing enclosure further includes a bridge formed above the lower chamber to divide the lower chamber into a nasal chamber and a mouth chamber below the nasal chamber.When the user puts on the mask, the user's nose is received in the nasal chamber and the user's mouth is received in the oral chamber, while the inlet channel is in fluid communication with the nasal chamber and the outlet channel is in fluid communication with the oral chamber or the nasal chamber. Furthermore, the nasal chamber and the oral chamber can be in fluid communication with each other through the bridge, wherein the mask (20, 30, 40) includes a breathing tube (22, 32, 42), and the breathing tube has the inlet conduit (221, 321, 421) and the outlet conduit (222, 322, 422) formed therein, wherein the inlet conduit is provided with a first one-way valve (261, 361) for unidirectionally providing inhaled air from the upper chamber (27, 37) into the nasal chamber (281, 381).

[0011] In a first mask according to the invention, the first one-way valve (261) is arranged on the partition (26), the outlet channel being in fluid communication with the oral chamber (282), and the bridge (151, 251) being formed with at least one opening (152, 252) such that the nasal chamber (181, 281) is in fluid communication with the oral chamber (182, 282) therethrough, the bridge (251) further including a third one-way valve (255) arranged on the at least one opening (252) for providing the inhaled air from the nasal chamber (281) to enter the oral chamber (282) unidirectionally.In a second mask according to the invention, the outlet channel communicates with the nasal chamber (37), the bridge (351) being provided with at least one opening (352) and further comprising a third one-way valve (355) provided at the at least one opening for providing the inhaled air from the nasal chamber (381) to enter the oral chamber (382) unidirectionally.

[0012] In a third mask according to the invention, the outlet channel communicates with the oral chamber (482) and the first one-way valve (461) is located on a lower outer side of the partition (46), the outlet channel being provided with a partition (454) at an inflow region thereof, the partition being united and integral with the partition (46) and the bridge (451), so that the exhaled air from the oral chamber (482) is further isolated from the inhaled air entering the nasal chamber (481). BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is the schematic air flow diagram of the second embodiment of the present invention; Fig. 2A is a three-dimensional schematic representation of a third embodiment of the present invention; Fig. Figure 2B is a frontal cross-sectional view taken along line 3B-3B of Fig. 2A, showing the inlet and outlet air flows; Fig. 3A is a three-dimensional schematic representation of a fourth embodiment of the present invention; Fig. Figure 3B is a frontal cross-sectional view taken along line 4B-4B of Fig. 3A, showing the inlet and outlet air flow; Fig. 4A is a perspective view of a fifth embodiment of the present invention; Fig. 4B is an exploded front perspective view of the fifth embodiment of the present invention, in which the purge valve is not shown; Fig. Figure 4C is a frontal cross-sectional view along line 5C-5C of Fig. 4A, showing inlet and outlet air flows. DESCRIPTION OF THE PREFERRED EMBODIMENT

[0013] The following is the common structure of various embodiments, so the reference numerals corresponding to each figure are systematically listed in parallel. Below, for clarity and conciseness, the elements in the first, second, third, fourth, and fifth embodiments are designated by reference numerals beginning with the numbers 1, 2, 3, 4, and 5, respectively.

[0014] With reference to the Fig. 1 to 4C, a breathable mask 20, 30, 40, 50 includes a body 21, 31, 41, 51 and at least one breathing tube 22, 32, 42, 52 in fluid communication with an interior of the body 21, 31, 41, 51. This at least one breathing tube 22, 32, 42, 52 includes an inlet conduit 221, 321, 421, 521 and an outlet conduit 222, 322, 422, 522 that is independent of the inlet conduit 221, 321, 421, 521. The body 21, 31, 41, 51 includes: a main frame 23, 33, 43, 53; a visor 24, 34, 44, 54 mounted in the main frame 23, 33, 43, 53; a waterproof sealing bezel 25, 35, 45, 55 at least partially attached to the main frame 23, 33, 43, 53 and the visor 24, 34, 44, 54. The waterproof sealing bezel 25, 35, 45, 55 is adapted for attachment to a user's face (not shown).The watertight sealing enclosure 25, 35, 45, 55 has a subdivision 26, 36, 46, 56 which divides the interior of the body 21, 31, 41, 51 into an upper chamber 27, 37, 47, 57 and the lower chamber 28, 38, 48, 58. When the user wears the breathable mask 20, 30, 40, 50 through a fastening device (usually an elastic headband connecting two sides of the main frame 23, 33, 43, 53, not shown in the figures), the partition 26, 36, 46, 56 sits on the user's nose, the user's eyes are housed in the upper chamber 27, 37, 47, 57 and the user's nose and mouth are housed in the lower chamber 28, 38, 48, 58. An inlet channel is formed from the inlet line 221, 321, 421, 521 downwards to the lower chamber 28, 38, 48, 58, and an outlet channel is formed from the lower chamber 28, 38, 48, 58 upwards to the outlet line 222, 322, 422, 522.For the aforementioned visor, inlet pipe, outlet pipe, inlet channel, and outlet channel, only one of each is selected for description, but their number is not limited. Preferably, the visor is an integrated type for the left and right eyes, and there are two inlet pipes, two outlet pipes, two inlet channels, and two outlet channels arranged symmetrically.

[0015] The watertight sealing enclosure 25, 35, 45, 55 further includes a bridge 251, 351, 451, 551 disposed above the lower chamber 28, 38, 48, 58 so that the lower chamber 28, 38, 48, 58 is divided into a nose chamber 281, 381, 481, 581 and a mouth chamber 282, 382, ​​482, 582 disposed below the nose chamber 281, 381, 481, 581. When the user wears the mask 20, 30, 40, 50, the user's nose is received in the nose chamber 281, 381, 481, 581 and the user's mouth is received in the mouth chambers 282, 382, ​​482, 582. The inlet channel is in fluid communication with the nose chamber 281, 381, 481, 581 and the outlet channel is in fluid communication with the mouth chamber 282, 382, ​​482, 582 or the nose chamber 281, 381, 481, 581. The nose chamber 281, 381, 481, 581 and the mouth chamber 282, 382, ​​482, 582 are adapted to be in fluid communication with each other through the bridge 251, 351, 451, 551.

[0016] Fig. 1 is a schematic diagram of a single description of the first embodiment. The mask 20 includes a breathing tube 22, with the inlet conduit 221 and the outlet conduit 222 formed therein. The inlet conduit is provided with a first one-way valve 261 that only allows inhaled air to enter unidirectionally from the upper chamber 27 into the nasal chamber 281. Preferably, the first one-way valve 261 is located on the partition 26, and more preferably, a second one-way valve (not shown) may be provided on the outlet conduit to ensure that the exhaled air is unidirectionally discharged from the lower chamber 28 through the outlet conduit, and further to prevent the used air accumulated in the outlet conduit from flowing back into the oral chamber 282.

[0017] In this embodiment, the outlet channel communicates with the oral chamber 282. At least one opening 252 is provided on the bridge 251 (the number and shape of the openings are not limited). The bridge 251 further includes a third one-way valve 255 arranged at the opening 252. That is, when the user is wearing the mask 20, fluid is only allowed to flow from the nasal chamber 281 to the oral chamber 282 through the third one-way valve 255. As indicated by the dashed air flow lines of Fig. 1, when the nose inhales, fresh air enters from the inlet line 221 of the breathing tube 22, passes through the upper chamber 27, and enters the nasal chamber 281 through the first one-way valve 261 for inhalation by the nose; when the mouth inhales, the fresh air in the nasal chamber 281 passes through the third one-way valve 255 and enters the oral chamber 282 for inhalation by the mouth. As shown by the solid air flow lines of Fig. As shown in Figure 1, when the nose exhales, the used air first enters the mouth chamber 282 through the third one-way valve 255, then passes through the exhaust tunnel 253 independently formed on the periphery of the upper chamber 27, then the exhaust duct 122 provided in the breathing tube 12, and is discharged to the outside. The exhaust tunnel 253 is formed, for example, by the waterproof sealing bezel 25 and the periphery of the visor 24. When the mouth exhales, the used air flows out of the aforementioned exhaust tunnel 253, then passes through the exhaust duct 222 provided in the breathing tube 22, and is discharged to the outside. And when the mouth exhales strongly, the accumulated water in the oral chamber 282 is discharged through the flush valve 29 because of the blockage of the bridge 251 and the third one-way valve 255 and does not splash back into the nasal chamber 281, making the nose absolutely dry and comfortable.Therefore, the user can freely use their nose or mouth to inhale or exhale. Furthermore, since the space of the mouth chamber 282 is very small, this configuration is more preferable because the position of the flush valve 29 can be facing the user's mouth, allowing the user to overcome the water pressure and easily drain the water without having to surface, thereby saving more energy.

[0018] The Fig. 2A and Fig. 2B are schematic illustrations of the second embodiment. Similar to the first embodiment, the mask 30 includes a breathing tube 32 with the inlet conduit 321 and the outlet conduit 322 formed therein. The inlet conduit is provided with a first one-way valve 361 that only allows inhaled air to enter unidirectionally from the upper chamber 37 into the nasal chamber 381. Preferably, the first one-way valve 361 is located on the partition 36, and more preferably, the outlet conduit may be provided with a second one-way valve 362 to ensure that exhaled air is unidirectionally discharged from the lower chamber 38 through the outlet conduit, and further to prevent the used air accumulated in the outlet conduit from flowing back into the nasal chamber 381.

[0019] In this embodiment, the outlet channel communicates with the nasal chamber 381. The bridge 351 is provided with at least one opening 352 (the number and shape of the openings are not limited), and the bridge 351 further includes a third one-way valve 355 arranged at the opening 352 to only allow the inhaled air to enter unidirectionally from the nasal chamber 381 into the oral chamber 382. That is, when the user puts on the mask 20, fluid is only allowed to flow from the nasal chamber 381 to the oral chamber 382 through the third one-way valve 355. As indicated by the dashed air flow lines of Fig. As shown in Figure 2B, when the nose inhales, fresh air enters from the inlet line 321 of the breathing tube 32, passes through the upper chamber 37, and enters the nasal chamber 381 through the first one-way valve 361 for inhalation by the nose; when the mouth inhales, the fresh air in the nasal chamber 381 passes through the third one-way valve 355 and enters the oral chamber 382 for inhalation by the mouth. As shown by the solid air flow lines in Fig. As shown in Figure 2B, when the nose exhales, the exhaust air passes through the exhaust tunnel 353 independently located on the periphery of the upper chamber 27, then through the exhaust pipe provided in the breathing tube 32, and is discharged to the outside; when the mouth exhales, the exhaust air is blocked by the third one-way valve 355 and does not return to the nasal chamber 381. Moreover, when the mouth exhales strongly, the water accumulated in the oral chamber 382 is directly discharged through the purge valve 39 due to the blockage of the bridge 351 and the third one-way valve 355 and does not splash back into the nasal chamber 381, making the nasal area dry and comfortable. Therefore, in this embodiment, the user can arbitrarily use the nose for inhalation and exhalation, and the mouth for inhalation. Furthermore, in this embodiment, the exhaust air exhaled from the mouth does not return to the nasal chamber 381 to exist in the next inhalation cycle.Even in the water, the mouth cannot effectively participate in exhalation due to water pressure and the blockage of the third one-way valve 355. This allows the nose to inhale cleaner, fresh air, so the user unconsciously uses the nose to breathe, thereby improving the duration and safety of snorkeling activities. Furthermore, since the space of the mouth chamber 382 is very small, and more preferably, because the purge valve 39 can be located immediately in front of the user's mouth, the design of this embodiment allows the user to overcome the water pressure and easily perform the exhalation into the water without having to surface, thus being more energy-efficient.

[0020] The Fig. 3A and Fig. 3B are schematic illustrations of the third embodiment. Similar to the second embodiment, the mask 40 includes a breathing tube 42 with the inlet conduit 421 and the outlet conduit 422 formed therein. The inlet conduit is provided with a first one-way valve 461 that only allows inhaled fresh air to enter unidirectionally from the upper chamber 47 into the lower chamber 48. In this embodiment, the first one-way valve 461 is located on the lower, outer side of the partition 46. More preferably, a second one-way valve (not shown) may be provided on the outlet conduit to ensure that the exhaled air is unidirectionally discharged from the lower chamber 48 through the outlet conduit, and further to prevent the stale air accumulated in the outlet conduit from flowing back into the oral chamber 482.

[0021] In this embodiment, the outlet channel communicates with the oral chamber 482. The bridge 451 is provided with at least one opening 452 (the number and shape of the openings are not limited), and the bridge 451 further includes a third one-way valve 455 arranged at the opening 452 to allow the inhaled air to enter unidirectionally from the nasal chamber 481 into the oral chamber 482. That is, when the user puts on the mask 40, fluid is only allowed to flow from the nasal chamber 481 to the oral chamber 482 through the third one-way valve 455. As indicated by the dashed air flow lines of Fig. As shown in Figure 3B, when the nose inhales, fresh air enters from the inlet line 421 of the breathing tube 42, passes through the upper chamber 47, and enters the nasal chamber 481 through the first one-way valve 461 for inhalation by the nose; when the mouth inhales, the fresh air in the nasal chamber 481 passes through the third one-way valve 455 and enters the oral chamber 482 for inhalation by the mouth. As shown by the solid air flow lines in Fig. As shown in Figure 3B, when the nose exhales, the used air first enters the mouth chamber 482 through the third one-way valve 455, then passes through the exhaust tunnel 453 independently formed on the periphery of the upper chamber 47, then the exhaust duct 422 provided in the breathing tube 42, and is discharged to the outside. The exhaust tunnel 453 is formed, for example, by the waterproof sealing bezel 45 and the periphery of the visor 44. When the mouth exhales, the used air flows out of the aforementioned exhaust tunnel 453, then passes through the exhaust duct 422 provided in the breathing tube 42, and is discharged to the outside. And when the mouth exhales strongly, the accumulated water in the oral chamber 482 is discharged through the flush valve 49 because of the blockage of the bridge 451 and the third one-way valve 455 and does not splash back into the nasal chamber 481, making the nose absolutely dry and comfortable.Therefore, the user can freely use the nose or mouth to inhale or exhale. Furthermore, since the space of the mouth chamber 482 is very small, this configuration is more preferable because the position of the flush valve 49 can be facing the user's mouth, allowing the user to overcome the water pressure and easily drain the water without having to surface, thereby saving more energy.

[0022] To prevent the used air discharged from the oral chamber 482 from being mixed into the next inhalation, in this embodiment, the inlet channel and the outlet channel may be further isolated. Specifically, the outlet channel is provided with a partition 454 at an inflow portion thereof, which partition is combined and integral with the partition 46 and the bridge 451, so that the exhaled air from the oral chamber 482 is further isolated from the inhaled air entering the nasal chamber 481. Fig. 4A, Fig. 4B and Fig. 4C are schematic illustrations of the fourth embodiment. The design of the breathing tube of this embodiment differs from those of the previous embodiments. In this embodiment, the mask 50 includes two breathing tubes 52, 52a, one of which defines the inlet conduit 521 and the other of which defines the outlet conduit 522. The outlet conduit 522 extends along the outer contour of the body 51 to be adjacent to the inlet conduit 521 and has a lower end inserted into the oral chamber 582 in a watertight manner to communicate with the oral chamber 582. More preferably, the outlet conduit 522 is arranged between one side of the main frame 51 and the watertight enclosure 55 for better positioning. The inlet channel is provided with a first one-way valve 561 that only allows inhalation air to enter unidirectionally from the upper chamber 57 into the nasal chamber 581.In this embodiment, the first one-way valve 561 is located on the lower, outer side of the partition 56. More preferably, the exhaust channel may be provided with a second one-way valve 562 disposed on a top side of the exhaust line 522 and secured by the cover 523 to allow exhaled air to be unidirectionally discharged from the oral chamber 582 through the exhaust line 522. Of course, an exhaust one-way valve (such as the second one-way valve 362 of the third embodiment, which is not shown in the figures for illustrating this embodiment) may also be added at the location where the exhaust channel communicates with the oral chamber 582. This type of exhaust one-way valve can further prevent the used air accumulated in the exhaust channel from flowing back into the oral chamber 582.

[0023] In this embodiment, the outlet channel communicates with the oral chamber 582. The bridge 551 is provided with at least one opening 552 (the number and shape of the openings are not limited), and the bridge 551 further includes a third one-way valve 555 arranged at the opening 552 to allow the inhaled air to enter unidirectionally from the nasal chamber 581 into the oral chamber 582. That is, when the user puts on the mask 50, fluid is only allowed to flow from the nasal chamber 581 to the oral chamber 582 through the third one-way valve 555. As indicated by the dashed air flow lines of Fig. As shown in Figure 4C, when the nose inhales, fresh air enters from the inlet line 521 of the breathing tube 52, passes through the upper chamber 57, and enters the nasal chamber 581 through the first one-way valve 561 for inhalation by the nose; when the mouth inhales, the fresh air in the nasal chamber 581 passes through the third one-way valve 555 and enters the oral chamber 582 for inhalation by the mouth. As shown by the solid air flow lines in Fig. As shown in Figure 4C, when the nose exhales, the used air first enters the oral chamber 582 through the third one-way valve 555, then passes through the exhaust pipe 522 extending independently along the outer profile of the body 51, and is discharged to the outside. When the mouth exhales, the used air is directly discharged to the outside through the aforementioned exhaust pipe 522. And when the mouth exhales strongly, the water accumulated in the oral chamber 582 is discharged through the purge valve 59 due to the blockage of the bridge 551 and the third one-way valve 555 and does not splash back into the nasal chamber 581, making the nose absolutely dry and comfortable. Therefore, the user can freely use the nose or mouth for inhalation or exhalation.Furthermore, since the space of the mouth chamber 582 is very small, this configuration is more preferable because the position of the purge valve 59 can be facing the user's mouth, allowing the user to overcome the water pressure and easily drain water without having to surface, thus saving more energy. Furthermore, in this embodiment, the inlet channel is located inside the mask body 51, while the outlet channel is located outside the mask body 51, so the mutual isolation effect between the inlet and outlet air is much better. Furthermore, since the inlet pipe 521 in the breathing tube 52 does not need to share the space with the outlet pipe 522, the diameter of the inlet pipe 521 in the breathing tube 52 can be increased, unlike the previous embodiments, so the fresh air intake volume becomes much larger, which also makes the user's inhalation much easier.

[0024] As can be fully and conclusively seen from the aforementioned embodiments, the crux of the present invention is indeed the structure of the body 21, 31, 42, 51 of the breathable mask 20, 30, 40, 50, which comprises: a main frame 23, 33, 43, 53, a visor 24, 34, 44, 54 embedded in the main frame, a watertight sealing enclosure 25, 35, 45, 55 at least partially connected to the main frame 23, 33, 43, 53 and the visor 24, 34, 44, 54. The waterproof sealing enclosure 25, 35, 45, 55 is suitable for attachment to the face of a user and has a partition 26, 26, 46, 56 which divides the interior of the body 21, 31, 42, 51 into an upper chamber 27, 37, 47, 57 and the lower chamber 28, 38, 48, 58.When the user puts on the mask 20, 30, 40, 50, the division 26, 26, 46, 56 is on the user's nose and the user's eyes are accommodated in the upper chambers 27, 37, 47, 57 and the user's nose and mouth are accommodated in the lower chambers 28, 38, 48, 58. More importantly, the waterproof seal enclosure 25, 35, 45, 55 further includes a bridge 252, 351, 451, 551 disposed above the lower chamber 28, 38, 48, 58, so that the lower chambers 28, 38, 48, 58 are divided into a nose chamber 281, 381, 481, 581 and a mouth chamber 282, 382, ​​482, 582 located below the nose chamber. After wearing the mask, the user's nose is accommodated in the nose chambers 281, 381, 481, 581, and the user's mouth is accommodated in the mouth chambers 282, 382, ​​482, 582.The nasal chambers 281, 381, 481, 581 and the oral chambers 282, 382, ​​482, 582 are suitable for fluid communication through the bridges 252, 351, 451, 551, preferably for unidirectional fluid communication from the nasal chamber to the oral chamber.

[0025] It is understood that the physiological structure of the human body has some established natural mechanisms that automatically seek an environment with fresh air and avoid an environment with stale air. Therefore, when the nose cannot breathe freely under the water surface and only the mouth can, the physiological life-preserving mechanism will automatically raise the soft palate without training, blocking nasal breathing and switching to mouth breathing. For this reason, according to the natural mechanism, conventional snorkeling equipment uses a diving mask to cover the eyes and nose, preventing nasal breathing, and an independent snorkel is used to allow the user to breathe through the mouth alone through the snorkel.When the nose and mouth can breathe evenly, the user will naturally use either the nose or the mouth to breathe freely, but usually only one of them can be selected as the primary method, and the two cannot be used at the same time. This is another natural tendency in anatomy. In an environment where it is easier to breathe fresh air through the nose than through the mouth, the human brain will subconsciously and naturally instruct itself to use the nose to breathe (at this time the soft palate is lowered), thereby allowing itself to use a comfortable breathing pattern that contains more oxygen.

[0026] Therefore, in any embodiment of the above-mentioned configuration, although it is possible to use either the mouth or nose for breathing, inhaling through the nose naturally becomes the most comfortable choice for the user because the nasal chamber is the first chamber where fresh air enters the mask and is provided to the human body for inhalation, and almost no stale air exhaled from the mouth from the previous breathing cycle remains there. This further highlights the advantages of the present invention. Taking the fourth and fifth embodiments as an example, when the user inhales through the nose, regardless of whether they use the mouth or nose for exhalation, the stale air that has not been exhausted is stored in the oral chamber and the exhaust port.In addition, the inlet and outlet ducts are not connected at all or are split, so that the fresh air flowing in from outside is provided to the user with almost 100% purity. This is an effect that cannot be achieved with current technology.

[0027] Furthermore, it should be noted that the exhaust ducts, exhaust tunnels, or exhaust channels of the aforementioned embodiments are best designed with bilateral symmetry, but for reasons of clarity and conciseness, only one of them is chosen for illustration and suggestion, and their number is not limited. In addition, the present invention divides the lower chamber into a nasal chamber and a mouth chamber with a bridge that can be used in any form of full-face mask. In this application, only one type is chosen for illustration (as particularly in Fig.5B). Specifically, as an illustrative example, the main frame 53 and the visor 54 cover only the user's eyes, while the user's nose and mouth are mainly enclosed by the waterproof sealing bezel 55. Furthermore, an additional mouth frame 531 independent of the main frame 53 and the visor 54 is provided, while the purge valve 59 is disposed behind the mouth frame 531, and the soft nose cover portion 553 protrudes outward between the main frame 53 and the mouth frame 531.Any design changes based on the concept of the present invention, such as the inlet, outlet conduit, outlet channel, first or second one-way valve, their number, type, position, and the number and type of visors (integral or left and right separate), or the connection between the outlet channel and the nasal chamber or oral chamber, should not be limited as long as it concerns the structure of the inlet and outlet bypass, regardless of the mask type. They are all within the scope of the present invention and should not be misinterpreted as limiting the claims set forth in the last paragraph.

Claims

[1] A breathable mask (20, 30, 40, 50) comprising a body (21, 31, 41, 51) and at least one breathing tube (22, 32, 42, 52, 52a), wherein the at least one breathing tube (22, 32, 42, 52, 52a) is in fluid communication with an interior of the body (21, 31, 41, 51) and includes an inlet conduit (221, 321, 421, 521) and an outlet conduit (222, 322, 422, 522) that are independent of each other; wherein the body (21, 31, 41, 51) includes: a main frame (23, 33, 43, 53); a viewing window (24, 34, 44, 54) mounted in the main frame (23, 33, 43, 53); a waterproof sealing bezel (25, 35, 45, 55) at least partially attached to the main frame (23, 33, 43, 53) and the visor (24, 34, 44, 54), the waterproof sealing bezel (25, 35, 45, 55) being suitable for attachment to the face of a user; wherein the watertight sealing enclosure (25, 35, 45, 55) has a partition (26, 36, 46, 56) for separating the interior of the body (21, 31, 41, 51) into an upper chamber (27, 37, 47, 57) and a lower chamber (28, 38, 48, 58), whereby, when the user wears the mask (20, 30, 40, 50) via a fastening device, the partition (26, 36, 46, 56) sits on a nose of the user, the user's eyes are located in the upper chamber (27, 37, 47, 57), and the user's nose and mouth are received in the lower chamber (28, 38, 48, 58); an inlet channel leading from the inlet line (221, 321, 421, 521) to the lower chamber (28, 38, 48, 58); an outlet channel leading from the lower chamber (28, 38, 48, 58) to the outlet line (222, 322, 422, 522); characterized bythat: the watertight sealing enclosure (25, 35, 45, 55) further includes a bridge (251, 351, 451, 551) whereby the lower chamber (28, 38, 48, 58) is divided into a nose chamber (281, 381, 481, 581) and a mouth chamber (282, 382, ​​482, 582) below the nose chamber (281, 381, 481, 581), wherein, when the user puts on the mask (20, 30, 40, 50), the user's nose is received in the nose chamber (281, 381, 481, 581) and the user's mouth is received in the mouth chamber (282, 382, ​​482, 582), wherein the inlet channel in Fluid connection with the nasal chamber (281, 381, 481, 581), the outlet channel is in fluid connection with the oral chamber (282, 382, ​​482, 582) or the nasal chamber (281, 381, 481, 581), and the nasal chamber (281, 381, 481, 581) and the oral chamber (282, 382, ​​482, 582) are in fluid connection with each other through the bridge (251, 351, 451, 551), wherein the mask (20, 30, 40) has a breathing tube (22, 32,42) and the breathing tube has the inlet conduit (221, 321, 421) and the outlet conduit (222, 322, 422) formed therein, wherein the inlet channel is provided with a first one-way valve (261, 361) to provide unidirectional inhaled air from the upper chamber (27, 37) into the nasal chamber (281, 381), wherein the first one-way valve (261) is arranged on the partition (26), wherein the outlet channel is in fluid communication with the oral chamber (282) and the bridge (151, 251) is formed with at least one opening (152, 252) such that the nasal chamber (181, 281) is in fluid communication with the oral chamber (182, 282) therethrough, the bridge (251) further including a third one-way valve (255) disposed at the at least one opening (252) for providing the inhaled air from the nasal chamber (281) to enter the oral chamber (282) unidirectionally. [2] A breathable mask (20, 30, 40, 50) comprising a body (21, 31, 41, 51) and at least one breathing tube (22, 32, 42, 52, 52a), wherein the at least one breathing tube (22, 32, 42, 52, 52a) is in fluid communication with an interior of the body (21, 31, 41, 51) and includes an inlet conduit (221, 321, 421, 521) and an outlet conduit (222, 322, 422, 522) that are independent of each other; wherein the body (21, 31, 41, 51) includes: a main frame (23, 33, 43, 53); a viewing window (24, 34, 44, 54) mounted in the main frame (23, 33, 43, 53); a waterproof sealing bezel (25, 35, 45, 55) at least partially attached to the main frame (23, 33, 43, 53) and the visor (24, 34, 44, 54), the waterproof sealing bezel (25, 35, 45, 55) being suitable for attachment to the face of a user; wherein the watertight sealing enclosure (25, 35, 45, 55) has a partition (26, 36, 46, 56) for separating the interior of the body (21, 31, 41, 51) into an upper chamber (27, 37, 47, 57) and a lower chamber (28, 38, 48, 58), whereby, when the user wears the mask (20, 30, 40, 50) via a fastening device, the partition (26, 36, 46, 56) sits on a nose of the user, the user's eyes are located in the upper chamber (27, 37, 47, 57), and the user's nose and mouth are received in the lower chamber (28, 38, 48, 58); an inlet channel leading from the inlet line (221, 321, 421, 521) to the lower chamber (28, 38, 48, 58); an outlet channel leading from the lower chamber (28, 38, 48, 58) to the outlet line (222, 322, 422, 522); characterized bythat: the watertight sealing enclosure (25, 35, 45, 55) further includes a bridge (251, 351, 451, 551) whereby the lower chamber (28, 38, 48, 58) is divided into a nose chamber (281, 381, 481, 581) and a mouth chamber (282, 382, ​​482, 582) below the nose chamber (281, 381, 481, 581), wherein, when the user puts on the mask (20, 30, 40, 50), the user's nose is received in the nose chamber (281, 381, 481, 581) and the user's mouth is received in the mouth chamber (282, 382, ​​482, 582), wherein the inlet channel in Fluid connection with the nasal chamber (281, 381, 481, 581), the outlet channel is in fluid connection with the oral chamber (282, 382, ​​482, 582) or the nasal chamber (281, 381, 481, 581), and the nasal chamber (281, 381, 481, 581) and the oral chamber (282, 382, ​​482, 582) are in fluid connection with each other through the bridge (251, 351, 451, 551), wherein the mask (20, 30, 40) has a breathing tube (22, 32,42) and the breathing tube has the inlet conduit (221, 321, 421) and the outlet conduit (222, 322, 422) formed therein, wherein the inlet channel is provided with a first one-way valve (261, 361) to provide unidirectional inhaled air from the upper chamber (27, 37) into the nasal chamber (281, 381), wherein the outlet channel is connected to the nose chamber (37), wherein the bridge (351) is provided with at least one opening (352) and further comprises a third one-way valve (355) provided at the at least one opening for providing the inhaled air from the nasal chamber (381) to enter the oral chamber (382) unidirectionally. [3] A breathable mask (20, 30, 40, 50) comprising a body (21, 31, 41, 51) and at least one breathing tube (22, 32, 42, 52, 52a), wherein the at least one breathing tube (22, 32, 42, 52, 52a) is in fluid communication with an interior of the body (21, 31, 41, 51) and includes an inlet conduit (221, 321, 421, 521) and an outlet conduit (222, 322, 422, 522) that are independent of each other; wherein the body (21, 31, 41, 51) includes: a main frame (23, 33, 43, 53); a viewing window (24, 34, 44, 54) mounted in the main frame (23, 33, 43, 53); a waterproof sealing bezel (25, 35, 45, 55) at least partially attached to the main frame (23, 33, 43, 53) and the visor (24, 34, 44, 54), the waterproof sealing bezel (25, 35, 45, 55) being suitable for attachment to the face of a user; wherein the watertight sealing enclosure (25, 35, 45, 55) has a partition (26, 36, 46, 56) for separating the interior of the body (21, 31, 41, 51) into an upper chamber (27, 37, 47, 57) and a lower chamber (28, 38, 48, 58), whereby, when the user wears the mask (20, 30, 40, 50) via a fastening device, the partition (26, 36, 46, 56) sits on a nose of the user, the user's eyes are located in the upper chamber (27, 37, 47, 57), and the user's nose and mouth are received in the lower chamber (28, 38, 48, 58); an inlet channel leading from the inlet line (221, 321, 421, 521) to the lower chamber (28, 38, 48, 58); an outlet channel leading from the lower chamber (28, 38, 48, 58) to the outlet line (222, 322, 422, 522); characterized bythat: the watertight sealing enclosure (25, 35, 45, 55) further includes a bridge (251, 351, 451, 551) whereby the lower chamber (28, 38, 48, 58) is divided into a nose chamber (281, 381, 481, 581) and a mouth chamber (282, 382, ​​482, 582) below the nose chamber (281, 381, 481, 581), wherein, when the user puts on the mask (20, 30, 40, 50), the user's nose is received in the nose chamber (281, 381, 481, 581) and the user's mouth is received in the mouth chamber (282, 382, ​​482, 582), wherein the inlet channel in Fluid connection with the nasal chamber (281, 381, 481, 581), the outlet channel is in fluid connection with the oral chamber (282, 382, ​​482, 582) or the nasal chamber (281, 381, 481, 581), and the nasal chamber (281, 381, 481, 581) and the oral chamber (282, 382, ​​482, 582) are in fluid connection with each other through the bridge (251, 351, 451, 551), wherein the mask (20, 30, 40) has a breathing tube (22, 32,42) and the breathing tube has the inlet conduit (221, 321, 421) and the outlet conduit (222, 322, 422) formed therein, wherein the inlet channel is provided with a first one-way valve (261, 361) to provide unidirectional inhaled air from the upper chamber (27, 37) into the nasal chamber (281, 381), the outlet channel is connected to the mouth chamber (482) and the first one-way valve (461) is located on a lower, outer side of the subdivision (46), wherein the outlet channel is provided with a partition wall (454) at an inflow region thereof, the partition wall being united and integral with the partition (46) and the bridge (451) so that the exhaled air from the oral chamber (482) is further isolated from the inhaled air entering the nasal chamber (481). [4] A breathable mask according to claim 3, wherein the bridge (451) is provided with at least one opening (452) and further comprises a third one-way valve (455) provided at the at least one opening for providing the inhaled air from the nasal chamber (481) to enter the oral chamber (482) unidirectionally.

Images