Snorkeling mask

Abstract

The utility model belongs to the technical field of diving appliances, and provides a snorkeling mask which comprises a breather pipe, an outer cover, an inner cover and a frame. An air inlet channel is arranged on the breather pipe; the inner cover is provided with a partition part, and the partition part divides the outer cover into an upper cavity and a lower cavity; the partition part is provided with at least one first one-way channel; the frame surrounds the outer cover and the inner cover; the outer cover is provided with two air inlet grooves, and the two air inlet grooves are located in the convex edge of the outer cover and extend from the middle to the two sides respectively. After the inner cover and the outer cover are assembled, the inner cover and the outer cover and the air inlet groove form an air inlet inner channel with the two ends ventilated. One ends of the two air inlet inner channels are communicated with the air inlet channel, and the other ends of the two air inlet inner channels are communicated with the upper chamber; the outer cover is further provided with at least one exhaust structure. According to the snorkeling mask, fresh air can evenly enter the mask, and therefore the inspiration experience of a user in the snorkeling process can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of diving products, in particular to a snorkeling mask. Background Art

[0002] When snorkeling, it is generally necessary to wear a snorkeling mask. In order to provide users with a better snorkeling experience, snorkeling masks in the prior art generally include a mask and a snorkel for breathing. A rib is provided inside the mask, which divides the interior of the mask into two parts, an upper part and an lower part, wherein the user's eyes are located in the upper part, and the user's nose and mouth are located in the lower part, so that the mask corresponding to the eye part is not affected by the mist generated by exhalation; and the snorkel is connected to the lower half of the mask to facilitate ventilation when the user breathes.

[0003] Most existing snorkeling masks use a single air inlet and dual air outlet system. Existing products do not offer much design for the air inlet system. Typically, a snorkel is directly connected to the upper side of the upper half of the mask's interior. When the user inhales, fresh air in the upper half of the mask's interior passes through a one-way valve on the sidewall and enters the lower half of the mask's interior, allowing the user to breathe in. However, this air inlet system, which allows fresh air to enter the upper half of the mask directly from the top of the mask and uses a single air inlet, can easily prevent the fresh air from being quickly and evenly distributed after entering the upper half of the mask, hindering the timely supply of sufficient fresh air to the user. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a snorkeling mask, which is conducive to the uniform entry of fresh air into the mask, thereby improving the user's breathing experience during snorkeling.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A snorkeling mask comprises a snorkel, an outer cover, an inner cover and a frame;

[0007] The ventilation pipe is connected to the outer cover, and an air intake channel is provided on the ventilation pipe;

[0008] The inner cover is arranged inside the outer cover, and the inner cover is provided with a partition portion, which divides the outer cover into an upper chamber and a lower chamber; the partition portion is provided with at least one first one-way channel (two), and the first one-way channel only allows gas to flow from the upper chamber into the lower chamber;

[0009] The frame surrounds the outer cover and the inner cover;

[0010] The outer cover is provided with two air inlet grooves, both of which are located on the convex edge of the outer cover and extend from the middle to both sides respectively; the inner cover and the outer cover are assembled to form an inner air inlet channel with ventilation at both ends together with the air inlet grooves;

[0011] One end of the two air intake inner ducts is connected to the air intake channel, and the other end is connected to the upper chamber and is located near the partition portion; when air is inhaled, fresh air from the outside enters through the air intake channel, passes through the two air intake inner ducts to form a two-part airflow and enters the upper chamber;

[0012] The outer cover is also provided with at least one exhaust structure.

[0013] In a preferred embodiment of the present invention, a transition piece is provided on the top of the outer cover, and the upper ends of the two air intake inner passages are connected to the air intake passage of the vent pipe through the transition piece.

[0014] Preferably, the exhaust structure includes at least one exhaust groove, which is provided on the convex edge of the outer cover and located outside the air inlet groove; after the inner cover and the outer cover are assembled, an exhaust inner channel with ventilation at both ends is formed at the exhaust groove;

[0015] The transition piece is provided with an air inlet and an exhaust port, the air inlet is connected to the two air inlet channels, the vent pipe is also provided with an exhaust channel, the exhaust channel, the exhaust port and one end of the exhaust inner channel are connected; the other end of the exhaust inner channel is connected to the lower chamber.

[0016] Preferably, there are two exhaust grooves, which are respectively located on the outside of the two air inlet grooves; the two exhaust grooves and the inner cover after assembly form two exhaust inner channels; the air inlet ports of the two exhaust inner channels are respectively located on both sides of the lower chamber;

[0017] There are two exhaust ports, which are respectively connected to the exhaust ports of the two exhaust inner ducts and are located on both sides of the air inlet.

[0018] Preferably, a raised extension section is provided at corresponding positions of the frame and the transition piece, and the extension section is connected to the vent pipe;

[0019] A commutator is provided in the inner cavity of the extension section, and the commutator is provided with an exhaust guide channel, an intake guide channel, and a reversing channel; the exhaust guide channel is connected to one of the exhaust ports, and the intake guide channel is connected to the intake port; one end of the reversing channel is connected to the other exhaust port, and the other end is connected to the exhaust guide channel, so as to achieve reversal and convergence of gas from the exhaust port into the exhaust guide channel;

[0020] An exhaust passage is provided on the vent pipe, and the exhaust passage is communicated with the exhaust guide passage; an intake passage on the vent pipe is communicated with the intake guide passage.

[0021] Preferably, the commutator includes an outer wall and two first partitions, the two first partitions divide the inner cavity of the outer wall into the exhaust guide channel, the intake guide channel and the reversing cavity, the exhaust guide channel and the reversing cavity are located on both sides of the intake guide channel; the upper and lower ends of the exhaust guide channel are connected to achieve communication with the exhaust channel and the exhaust port; the upper and lower ends of the intake guide channel are connected to achieve communication with the intake channel and the air port, and a baffle is provided at the upper end of the intake guide channel corresponding to the exhaust channel of the ventilation pipe, the baffle separates the exhaust channel from the intake guide channel to prevent airflow from mutual leakage; the upper end of the reversing cavity is sealed, the reversing cavity and the exhaust guide channel are connected through a transition channel, and the reversing cavity and the transition channel form the reversing channel.

[0022] In this embodiment, the vent pipe is provided with only one air inlet channel and one air outlet channel, which are separated by a second partition plate. Preferably, the exhaust structure further includes a second one-way channel;

[0023] The outer walls of the two exhaust inner ducts are each provided with a second one-way channel, and the second one-way channel only allows the gas in the exhaust inner duct to flow outward, and the two second one-way channels are symmetrical.

[0024] Preferably, the exhaust structure further includes a third one-way channel disposed on the lower chamber, which allows only the gas in the lower chamber to flow outward. In this embodiment, the third one-way channel may be a third one-way valve, which may be positioned corresponding to the user's mouth. Its primary function is to allow exhaled gas from the user's mouth to be promptly and rapidly discharged from the lower chamber.

[0025] Preferably, a continuous first spacer ring and two second spacer rings are provided on the convex edge of the outer cover, the two second spacer rings are respectively located on both sides of the outer cover and are symmetrical, and the two second spacer rings are both located between the first spacer ring and the convex edge wall of the outer cover; the upper ends of the two second spacer rings are sealed with the convex edge wall of the outer cover, and the lower ends of the two second spacer rings are sealed with the first spacer ring, and the two ends of the first spacer ring respectively extend to the corresponding positions of the lower chamber and leave a gap between them and the convex edge wall of the outer cover;

[0026] The exhaust groove is formed between the second spacer ring and the convex wall of the outer cover; the air inlet groove is formed between the first spacer ring and the second spacer ring.

[0027] In a preferred embodiment of the present invention, a fourth one-way channel is provided at one end of the air inlet channel close to the partition portion, and the fourth one-way channel only allows the gas in the air inlet channel to flow to the upper chamber.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] The snorkeling mask of this utility model innovatively adopts a two-part air intake method, which ultimately enters the upper chamber from both sides, ensuring a more even intake of fresh air. Furthermore, the ports of the two air intake inner passages of this utility model are close to the partition of the inner mask, making it easier for fresh air entering the upper chamber to be drawn into the lower chamber in a timely manner for the user to inhale, thus facilitating the rapid and timely provision of fresh air to the user and improving ventilation efficiency.

[0030] In addition, the air intake inner duct of the utility model is composed of an outer cover and an inner cover, and an air intake groove is set on the outer cover, which is easy to process and manufacture. The air intake inner duct is formed by assembling it with the inner cover and the frame. The structure is simple and there is no need to assemble separate pipeline components. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 It is a three-dimensional diagram of the snorkeling mask of the present invention.

[0033] Figure 2 This is a back view of the snorkeling mask of the present invention.

[0034] Figure 3 for Figure 2 Add schematic diagrams of the intake and exhaust ducts.

[0035] Figure 4 This is an exploded view of the main parts of the snorkeling mask of the present invention.

[0036] Figure 5 for Figure 2 Rear view of the center shroud and frame.

[0037] Figure 6 It is a partial three-dimensional view of the outer cover of the snorkeling mask of the present invention.

[0038] Figure 7 It is a three-dimensional diagram of the frame of the snorkeling mask of the present invention.

[0039] Figure 8 It is a three-dimensional diagram of the inner cover of the snorkeling mask of the present invention.

[0040] Figure 9 This is a top view of the commutator of the snorkeling mask of the present invention.

[0041] Figure 10 This is a bottom view of the commutator of the snorkeling mask of the present invention.

[0042] Figure 11 for Figure 9 Cross-sectional view of AA in the figure.

[0043] Figure 12 It is a three-dimensional diagram of the commutator of the snorkeling mask of the present invention.

[0044] in:

[0045] 1- vent pipe, 101- air intake channel, 102- exhaust channel;

[0046] 2-frame, 201-extension section, 2011-first inner cavity, 20111-intake passage, 20112-exhaust passage, 2012-second inner cavity;

[0047] 3-outer cover, 301-third one-way channel, 302-fourth one-way channel, 303-wall, 304-first spacer ring, 305-second spacer ring, 306-second one-way channel, 307-inlet groove, 308-exhaust groove, 309-transition piece, 3091-inlet port, 3092-exhaust port;

[0048] 4-inner cover, 401-partition portion, 402-first one-way channel;

[0049] 5-upper chamber;

[0050] 6-lower chamber;

[0051] 7-Intake inner duct;

[0052] 8- exhaust inner duct;

[0053] 9-commutator, 901-outer wall, 902-first partition, 903-intake guide channel, 904-exhaust guide channel, 905-commutation chamber, 906-transition channel, 907-commutation channel, 908-baffle, 909-baffle. DETAILED DESCRIPTION

[0054] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of this application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0056] Example 1

[0057] See also Figures 1-12 The present embodiment discloses a snorkeling mask, comprising a snorkel 1, an outer cover 3, an inner cover 4, and a frame 2. The snorkel 1 is connected to the outer cover 3, and is provided with an air intake channel 101 and an air exhaust channel 102. The inner cover 4 is arranged on the inner side of the outer cover 3, and is provided with a partition 401, which divides the outer cover 3 into an upper chamber 5 and a lower chamber 6. At least one first one-way channel 402 is provided at the corresponding positions of the partition 401 on both sides of the user's nose, and the first one-way channel 402 only allows gas to flow from the upper chamber 5 to the lower chamber 6. Specifically in the present embodiment, four first one-way channels 402 are provided on the partition 401, and two are provided on both sides of the partition 401, which is conducive to corresponding to the two sides of the user's nose and facilitates the entry of fresh air. The frame 2 of this embodiment surrounds the outer cover 3 and the inner cover 4.

[0058] Compared with the prior art, the snorkeling mask of this embodiment has a major improvement in the different air intake and exhaust methods.

[0059] In terms of air intake, this embodiment provides two air intake grooves 307 on the outer cover 3. Both air intake grooves 307 are located on the convex edge of the outer cover 3 and extend from the middle to both sides. The inner cover 4 is sealed and assembled on the convex edge of the outer cover 3, forming an air intake inner channel 7 with air flow at both ends together with the air intake grooves 307. One end of the two air intake inner channels 7 is connected to the air intake channel 101 in the ventilation pipe 1, and the other end is connected to the upper chamber 5 and is located near the partition part 401, specifically corresponding to the two sides of the partition part 401. Figure 3-Figure 5 As shown, at the other end of the two air inlet passages 7, that is, Figure 3A fourth one-way passage 302 is provided at both the middle and lower ends. This fourth one-way passage 302 utilizes a one-way valve and is positioned close to the first one-way passage 402 on the partition 401, allowing fresh air to be easily inhaled by the user. During intake, fresh air enters through the intake passage 101 of the ventilator 1, passes through the two inner intake passages 7, and is split into two streams, entering the upper chamber 5. After passing through the first one-way passage 402, it enters the lower chamber 6 and is then inhaled by the user.

[0060] In this embodiment, a transition piece 309 is provided at the top of the outer cover 3. The upper ends of the two air intake ducts 7 communicate with the air intake channel 101 of the vent 1 through this transition piece 309. Specifically, the transition piece 309 of this embodiment is provided with an air intake port 3091 and two air exhaust ports 3092, with the two air exhaust ports 3092 located on either side of the air intake port 3091. The upper ends of the two air intake ducts 7 of this embodiment converge and communicate with the air intake port 3091. The air intake channel 101 of the vent 1 is in turn connected to the air intake port 3091. Furthermore, the transition piece 309 of this embodiment is a convex edge structure at the top of the outer cover 3.

[0061] This intake method allows the air to enter the upper chamber 5 after passing through the intake channel 101 of the ventilator 1, and then be divided into two parts. This allows for more uniform fresh air intake. Furthermore, the lower ends of the two inner intake channels 7 of this embodiment, namely the fourth one-way channel 302, are located near the partition 401 of the inner cover 4. This allows fresh air entering the upper chamber 5 to be more easily and promptly drawn into the lower chamber 6 for inhalation by the user, thereby facilitating the rapid and timely provision of fresh air to the user and improving ventilation efficiency.

[0062] Regarding the exhaust mechanism, this embodiment features at least one exhaust groove 308 on the convex edge of the outer cover 3. Specifically, two exhaust grooves 308 are provided, one located outside the two air inlet grooves 307. When the inner cover 4 is assembled with the outer cover 3, the exhaust grooves 308 form an exhaust duct 8 with ventilation at both ends. Two exhaust ports 3092 at the top of the outer cover 3 communicate with the two exhaust ducts 8, which in turn communicate with the exhaust channel 102 on the vent tube 1. It can be understood that the exhaust channel 102, the exhaust ports 3092, and the upper ends of the exhaust ducts 8 are connected, while the lower ends of the exhaust ducts 8 communicate with the lower chamber 6. The lower ends of the two exhaust ducts 8 are located on either side of the lower chamber 6. In this embodiment, the upper ends of the exhaust ducts 8 can be understood as exhaust ports, while the lower ends can be understood as air inlets. This means that exhaled air enters the exhaust duct 8 from the lower ends and leaves the duct 8 from the upper ends.

[0063] A raised extension section 201 is provided at the corresponding position between the frame 2 and the transition piece 309 , and the extension section 201 is connected to the lower end of the ventilation pipe 1 .

[0064] A diverter 9 is provided within the inner cavity of the extension section 201. The diverter 9 is provided with an exhaust guide channel 904, an intake guide channel 903, and a reversing channel. The exhaust guide channel 904 communicates with one of the exhaust ports 3092, while the intake guide channel 903 communicates with the intake port 3091. One end of the reversing channel communicates with the other exhaust port 3092, while the other end communicates with the exhaust guide channel 904, thereby reversing the direction of gas from the exhaust port 3092 and funneling it into the exhaust guide channel 904. In this embodiment, the vent pipe 1 has only one exhaust channel 102, which communicates with the exhaust guide channel 904. The intake channel 101 communicates with the intake guide channel 903. In other words, this embodiment provides a single-input and single-output system for gas in the vent pipe 1.

[0065] The provision of the diverter 9 allows for dual exhaust on both sides of the lower chamber 6, while the exhaled air is then collected and converted into a single exhaust within the vent tube 1. This design is highly ingenious and has excellent technical effects. Specifically, the two exhaust inner passages 8 ensure the timely discharge of the user's exhaled air from the lower chamber 6. After being collected by the diverter 9, the exhaled air is discharged through a single channel in the exhaust passage 102 of the vent tube 1. This simplifies the structure of the vent tube 1, requiring only a single exhaust passage 102 and an intake passage 101. This significantly simplifies the number of components within the vent tube 1, such as valves and floats, compared to a single-inlet, dual-exhaust vent tube 1.

[0066] Furthermore, the commutator 9 of this embodiment includes an annular outer wall 901 and two first baffles 902. The two first baffles 902 divide the inner cavity enclosed by the outer wall 901 into an exhaust guide channel 904, an intake guide channel 903, and a reversing cavity 905. The exhaust guide channel 904 and the reversing cavity 905 are respectively located on either side of the intake guide channel 903. The upper and lower ends of the exhaust guide channel 904 are connected to achieve communication with the exhaust channel 102 and the exhaust port 3092. The upper and lower ends of the intake guide channel 903 are connected to achieve communication with the intake channel 101 and the intake port 3091. A baffle 909 is provided at the upper end of the intake guide channel 903 corresponding to the exhaust channel 102 of the vent pipe 1. The baffle 909 separates the exhaust channel 102 from a portion of the intake guide channel 903 to prevent airflow from crossing. The upper end of the reversing cavity 905 is sealed, and the reversing cavity 905 is connected to the exhaust guide channel 904 through a transition channel 906. The transition channel 906 is set on the side wall of the intake guide channel 903. The reversing cavity 905 and the transition channel 906 form a reversing channel.

[0067] Furthermore, to facilitate assembly of the commutator 9 and the extension section 201, the extension section 201 of the frame 2 of this embodiment is divided into a first inner cavity 2011 and a second inner cavity 2012, with the second inner cavity 2012 disposed above the first inner cavity 2011. The commutator 9 of this embodiment is disposed within the second inner cavity 2012, while the first inner cavity 2011 is provided with two exhaust passages 20112 and one intake passage 20111. The two exhaust passages 20112 are in corresponding communication with the two exhaust ports 3092, while the intake passage 20111 is in corresponding communication with the intake port 3091. That is, in this embodiment, the exhaust guide channel 904, one of the exhaust passages 20112, one of the exhaust ports 3092, and one of the exhaust inner passages 8 are connected; the intake guide channel 903, the intake passage 20111, the intake port 3091, and the two intake inner passages 7 are connected; the reversing channel, another exhaust passage 20112, another exhaust port 3092, and another exhaust inner passage 8 are connected. The above connection methods can be seen in Figure 3 and Figure 5 .

[0068] At the same time, in order to facilitate the production of the commutator 9, the bottom of the transition channel 906 in the commutator 9 can be hollowed out, and a retaining bar 908 is used to seal the hollow position. The retaining bar 908 can be inserted into the hollow position with an interference fit, or it can be supported and placed on the top of the first inner cavity 2011. Of course, the entire structure of the commutator 9 can also be integrally formed.

[0069] In addition to the exhaust structure of the inner exhaust ducts 8, this embodiment also features second one-way channels 306 on the outer walls 901 of both exhaust ducts 8. Specifically, these second one-way channels 306 only allow gas within the inner exhaust ducts 8 to flow outward. The second one-way channels 306 on the outer walls 901 of both exhaust ducts 8 are symmetrical. In this embodiment, at least one one-way valve is provided on the outer wall 901 of each exhaust duct 8, i.e., on the flanged wall 303 of the outer cover 3 of this embodiment. This one-way valve forms the second one-way channel 306. In this embodiment, two one-way valves are provided.

[0070] To further enhance the exhaust efficiency, the exhaust structure of this embodiment further includes a third one-way channel 301, which is disposed on the lower chamber 6 and only allows the gas within the lower chamber 6 to flow outward. The third one-way channel 301 of this embodiment also utilizes a one-way valve, specifically disposed at a position corresponding to the user's mouth. Its primary function is to allow exhaled gas from the user's mouth to be promptly and rapidly discharged from the lower chamber 6.

[0071] For the exhaust of the lower chamber 6, this embodiment adopts dual-channel exhaust (two exhaust inner channels 8), dual side exhaust (two second one-way channels 306) and single front exhaust (third one-way channel 301). The simultaneous use of the three can allow the user's exhaled gas to be discharged quickly, avoiding accumulation in the lower chamber 6, maintaining a good air environment in the lower chamber 6 as much as possible, which is conducive to improving the user's diving experience. In addition, during diving, the user's lungs are generally strained, and large breaths are often exhaled and inhaled. Since the user's breathing movements are all performed in the lower chamber 6, the third one-way channel 301 in this embodiment corresponds to the user's mouth and can preferentially discharge the gas exhaled from the mouth; at the same time, the two second one-way channels 306 are located on both sides of the outer cover 3, approximately at the user's ear position. The two second one-way channels 306 can first discharge part of the exhaled gas in the process of flowing to the top, especially when the user exhales forcefully, which can quickly reduce the carbon dioxide content exhaled by the user in the lower chamber 6 and make it easier to discharge it, thereby helping the user to better inhale the fresh air flowing in from the upper chamber 5 in the lower chamber 6, improving the user experience, and even reducing the difficulty of breathing and reducing the user's physical exertion; and the remaining part of the gas is discharged to the water surface from the exhaust inner channels 8 on both sides through the diverter 9 and then from the exhaust channel 102 of the snorkel 1.

[0072] See also Figure 3 and Figure 5 The gas inlet direction and path of the snorkeling mask of this embodiment can be seen as arrow F1 in the figure. The gas exhaust direction and path can be seen as arrow F2 in the figure.

[0073] The intake inner duct 7 and exhaust inner duct 8 of this embodiment are primarily formed by assembling the groove-shaped structure at the flange of the outer cover 3 and the inner cover 4. A continuous first spacer ring 304 and two second spacer rings 305 are provided on the flange of the outer cover 3. The two second spacer rings 305 are symmetrically located on either side of the outer cover 3 and are positioned between the first spacer ring 304 and the flange wall 303 of the outer cover 3. The upper ends of the two second spacer rings 305 are sealed against the flange wall 303 of the outer cover 3, while the lower ends of the two second spacer rings 305 are sealed against the first spacer ring 304. The two ends of the first spacer ring 304 extend to corresponding locations in the lower chamber 6, leaving a gap between them and the flange wall 303 of the outer cover 3. An exhaust groove 308 is formed between the second spacer ring 305 and the flange wall 303 of the outer cover 3, and an intake groove 307 is formed between the first spacer ring 304 and the second spacer ring 305.

[0074] The structures and implementation methods of other components of this embodiment can be found in the prior art and will not be repeated here.

[0075] Example 2

[0076] This embodiment differs from Example 1 in that, in terms of exhaust, two exhaust channels 102 are provided on the vent tube 1. These channels 102 are located on either side of the air inlet channel 101 and are connected to the two exhaust ports 3092 and the two exhaust passages 20112. This creates a one-in, two-out ventilation system on the vent tube 1, while a dual-in, dual-out air flow path is formed within the inner cavity of the outer cover 3, eliminating the need for a diverter 9. Specifically, fresh air enters the vent tube 1 through the air inlet channel 101, passes through the air inlet port 3091, and is split into two, entering the upper chamber 5 through the two air inlet inner passages 7. Finally, it passes through the first one-way passage 402 of the partition 401 and enters the lower chamber 6 for inhalation by the user. During exhaust, the user's exhaled air is discharged from the lower chamber 6 into the two exhaust inner passages 8, and then through the two exhaust ports 3092, into the two exhaust channels 102 of the vent tube 1, before being discharged.

[0077] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. Snorkeling mask, characterized in that, Including snorkel, outer cover, inner cover and frame; The ventilation pipe is connected to the outer cover, and an air intake channel is provided on the ventilation pipe; The inner cover is arranged inside the outer cover, and the inner cover is provided with a partition portion, which divides the outer cover into an upper chamber and a lower chamber; the partition portion is provided with at least one first one-way channel, which only allows gas to flow from the upper chamber into the lower chamber; The frame surrounds the outer cover and the inner cover; The outer cover is provided with two air inlet grooves, both of which are located on the convex edge of the outer cover and extend from the middle to both sides respectively; the inner cover and the outer cover are assembled to form an inner air inlet channel with ventilation at both ends together with the air inlet grooves; One end of the two air intake inner ducts is connected to the air intake channel, and the other end is connected to the upper chamber and is located near the partition portion; when air is inhaled, fresh air from the outside enters through the air intake channel, passes through the two air intake inner ducts to form a two-part airflow and enters the upper chamber; The outer cover is also provided with at least one exhaust structure.

2. The snorkeling mask according to claim 1, characterized in that A transition piece is provided on the top of the outer cover, and the upper ends of the two air intake inner passages are communicated with the air intake passage of the vent pipe through the transition piece.

3. The snorkeling mask according to claim 2, characterized in that The exhaust structure includes at least one exhaust groove, which is arranged on the convex edge of the outer cover and located outside the air inlet groove; after the inner cover and the outer cover are assembled, an exhaust inner channel with ventilation at both ends is formed at the exhaust groove; The transition piece is provided with an air inlet and an exhaust port, the air inlet is connected to the two air inlet channels, the vent pipe is also provided with an exhaust channel, the exhaust channel, the exhaust port and one end of the exhaust inner channel are connected; the other end of the exhaust inner channel is connected to the lower chamber.

4. The snorkeling mask according to claim 3, characterized in that: There are two exhaust grooves, each located on the outside of the two air inlet grooves; the two exhaust grooves and the inner cover after assembly form two exhaust inner channels; the air inlet ports of the two exhaust inner channels are respectively located on both sides of the lower chamber; There are two exhaust ports, which are respectively connected to the exhaust ports of the two exhaust inner ducts and are located on both sides of the air inlet.

5. The snorkeling mask according to claim 4, characterized in that: A raised extension section is provided at corresponding positions of the frame and the transition piece, and the extension section is connected to the vent pipe; A commutator is provided in the inner cavity of the extension section, and the commutator is provided with an exhaust guide channel, an intake guide channel, and a reversing channel; the exhaust guide channel is connected to one of the exhaust ports, and the intake guide channel is connected to the intake port; one end of the reversing channel is connected to the other exhaust port, and the other end is connected to the exhaust guide channel, so as to achieve reversal and convergence of gas from the exhaust port into the exhaust guide channel; An exhaust passage is provided on the vent pipe, and the exhaust passage is communicated with the exhaust guide passage; an intake passage on the vent pipe is communicated with the intake guide passage.

6. The snorkeling mask according to claim 5, characterized in that: The commutator includes an outer wall and two first partitions, and the two first partitions divide the inner cavity of the outer wall into the exhaust guide channel, the intake guide channel and the reversing chamber. The exhaust guide channel and the reversing chamber are located on both sides of the intake guide channel; the upper and lower ends of the exhaust guide channel are connected to achieve communication with the exhaust channel and the exhaust port; the upper and lower ends of the intake guide channel are connected to achieve communication with the intake channel and the air port, and a baffle is provided at the upper end of the intake guide channel and the corresponding position of the exhaust channel of the ventilation pipe, and the baffle separates the exhaust channel from the intake guide channel to prevent airflow from mutual leakage; the upper end of the reversing chamber is sealed, and the reversing chamber and the exhaust guide channel are connected through a transition channel, and the reversing chamber and the transition channel form the reversing channel.

7. The snorkeling mask according to claim 6, characterized in that The exhaust structure further includes a second one-way channel; The outer walls of the two exhaust inner ducts are each provided with a second one-way channel, and the second one-way channel only allows the gas in the exhaust inner duct to flow outward, and the two second one-way channels are symmetrical.

8. The snorkeling mask according to any one of claims 1 to 7, characterized in that: The exhaust structure further includes a third one-way channel, which is disposed on the lower chamber and only allows the gas in the lower chamber to flow outward.

9. The snorkeling mask according to any one of claims 4 to 7, characterized in that: A continuous first spacer ring and two second spacer rings are provided on the convex edge of the outer cover. The two second spacer rings are symmetrically located on both sides of the outer cover, and both second spacer rings are located between the first spacer ring and the convex edge wall of the outer cover. The upper ends of the two second spacer rings are sealed with the convex edge wall of the outer cover, and the lower ends of the two second spacer rings are sealed with the first spacer ring. The two ends of the first spacer ring extend to the corresponding positions of the lower chamber and leave a gap between them and the convex edge wall of the outer cover. The exhaust groove is formed between the second spacer ring and the convex wall of the outer cover; the air inlet groove is formed between the first spacer ring and the second spacer ring.

10. The snorkeling mask according to claim 1, characterized in that A fourth one-way channel is provided at one end of the air intake inner channel close to the partition portion, and the fourth one-way channel only allows the gas in the air intake inner channel to flow toward the upper chamber.

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