Exhaust structure and respiratory mask

Abstract

This invention relates to an exhaust structure and a breathing mask, specifically to the field of breathing mask technology. The exhaust structure of this invention includes an exhaust body and exhaust ports disposed on the exhaust body. The exhaust ports include an inner port and an outer port located on both sides of the minimum ventilation cross-section, and the inner and outer ports are connected. By setting the exhaust ports as inner and outer ports located on both sides of the minimum ventilation cross-section, wherein the inner port is an inner conical port and the outer port is an outer conical port, when airflow is discharged, it first passes through the inner conical port, which concentrates the airflow, making the gas smoother; subsequently, the airflow flows to the outer conical port, which promotes greater airflow dispersion and rapidly reduces the airflow velocity, helping to consume the energy of the airflow, thereby achieving a better noise reduction effect.

Description

Technical Field

[0001] This invention relates to the field of breathing mask technology, and particularly to an exhaust structure and a breathing mask. Background Technology

[0002] A breathing mask generally includes a frame, a padding assembly located inside the frame, and a curved tube located outside the frame. The curved tube is connected to the frame via a connector. The exhaust port can be located on the curved tube, the frame, or the connector. For example, Chinese patent CN114887181A discloses a non-invasive breathing mask. Specifically, it discloses that the front end of the mask body has an exhaust port, which is formed into a conical structure; wherein the large-diameter end of the exhaust port is located inside the mask body, and the small-diameter end is located outside the mask body. Therefore, the structure of the exhaust port is relatively simple. This simple conical structure, with the large-diameter end facing inward and the small-diameter end facing outward, causes the airflow to be more concentrated when discharged into the environment, increasing the airflow velocity and thus generating greater noise during exhaust. Summary of the Invention

[0003] The present invention provides an exhaust structure and a breathing mask to solve at least one of the above-mentioned technical problems.

[0004] According to a first aspect of the present invention, the present invention provides an exhaust structure, including an exhaust body and an exhaust port disposed on the exhaust body, the exhaust port having a minimum ventilation cross section in a first direction;

[0005] The exhaust port includes an inner port and an outer port located on both sides of the minimum ventilation cross section. The inner port and the outer port are connected, and the airflow is discharged from the exhaust body along the direction from the inner port to the outer port.

[0006] The inner hole is constructed as an inner conical hole with a reduced air passage cross-section along the airflow direction, and the outer hole is constructed as an outer conical hole with a increased air passage cross-section along the airflow direction.

[0007] In one embodiment, the exhaust body includes a sloped connecting portion, the exhaust port is disposed on the sloped connecting portion, the minimum ventilation cross section has a first included angle β with a first direction, and the slope of the sloped connecting portion has a second included angle α with a second direction, wherein the first direction is perpendicular to the second direction.

[0008] In one embodiment, the outer hole is configured such that its projection in a plane defined by a first direction and a second direction has a first outer edge, a second outer edge, a first inclined edge extending from the minimum ventilation section to the first outer edge, and a second inclined edge extending from the minimum ventilation section to the second outer edge.

[0009] Wherein, the first outer edge and the second outer edge are disposed opposite to each other;

[0010] The length of the first inclined side is greater than or less than the length of the second inclined side.

[0011] In one embodiment, a third included angle γ exists between the minimum ventilation cross section and the inclined surface of the inclined surface connection portion;

[0012] Among them, β<α; β+γ=90°-α.

[0013] In one embodiment, the first included angle β is 0°-70°.

[0014] In one embodiment, the first included angle β is 10°-45°.

[0015] In one embodiment, the second included angle α is 10°-90°.

[0016] In one embodiment, the second included angle α is 35°-55°.

[0017] In one embodiment, the angle between the first inclined side and the first direction is 0°-15°, and the angle between the first inclined side and the second inclined side is 70°-120°.

[0018] In one embodiment, the inner hole is configured such that its projection in a plane defined by a first direction and a second direction has a first inner edge, a second inner edge, a third inclined edge extending from the minimum ventilation section to the first inner edge, and a fourth inclined edge extending from the minimum ventilation section to the second inner edge.

[0019] The first inner edge is positioned opposite to the second inner edge.

[0020] In one embodiment, the angle between the fourth inclined side and the first direction is 0°-15°, and the angle between the third inclined side and...

[0021] The included angle between the fourth inclined sides is 45°-120°.

[0022] In one embodiment, the maximum depth of the inner hole is greater than the maximum depth of the outer hole.

[0023] In one embodiment, the minimum ventilation cross-section is parallel to the inclined surface of the inclined surface connection portion.

[0024] Where β+α=90°.

[0025] 5. In one embodiment, the second included angle α is 10°-70°.

[0026] In one embodiment, the second included angle α is 45°-55°.

[0027] In one embodiment, the outer aperture is configured such that its projection in a plane defined by a first direction and a second direction has a first outer edge, a second outer edge, a first inclined edge extending from the minimum ventilation section to the first outer edge, and a [missing information - likely a typo, should be "from the minimum ventilation section"].

[0028] The cross-section extends to the second inclined edge of the second outer edge;

[0029] 0 Wherein, the first outer edge and the second outer edge are disposed opposite to each other;

[0030] The length of the first inclined side is greater than or less than the length of the second inclined side.

[0031] In one embodiment, the angle between the second inclined edge and the second direction is 0°-60°.

[0032] In one embodiment, the angle between the second inclined edge and the second direction is 30°-45°.

[0033] In one embodiment, the outer aperture is configured such that its projection in a plane defined by a first direction and a second direction has a first outer edge, a second outer edge, a first inclined edge extending from the minimum ventilation section to the first outer edge, and a [missing information - likely a typo, should be 5] from the minimum ventilation section.

[0034] The cross-section extends to the second inclined edge of the second outer edge;

[0035] Wherein, the first outer edge and the second outer edge are disposed opposite to each other;

[0036] The length of the first inclined side is equal to the length of the second inclined side.

[0037] In one embodiment, the angle between the first inclined side and the second inclined side of the outer hole is 20°-120°.

[0038] 0 In one embodiment, the inner hole and the outer hole are symmetrically arranged with respect to the minimum ventilation cross section.

[0039] In one embodiment, the minimum ventilation cross-section is circular or elliptical; and / or

[0040] The ventilation cross-section of the inner hole is circular, elliptical, rounded rectangle, square, or rhomboid; and / or

[0041] The ventilation cross-section of the outer hole is circular, elliptical, rounded rectangle, square, or rhomboid.

[0042] In one embodiment, there are multiple exhaust holes, which are arranged sequentially at equal or unequal intervals along the circumference of the exhaust body.

[0043] In one embodiment, the plurality of exhaust holes are distributed in a cluster or in an array.

[0044] In one embodiment, at least two of the exhaust ports are located on a virtual circle centered on the center of the exhaust body.

[0045] In one embodiment, the material of the exhaust body is polypropylene, polycarbonate, polyethylene, polystyrene, thermoplastic polymer structural material, or polyvinyl chloride.

[0046] According to a second aspect of the present invention, an exhaust structure is provided, comprising an exhaust body and an exhaust port disposed on the exhaust body, the exhaust port having a minimum ventilation cross section;

[0047] The exhaust port includes an inner port and an outer port located on both sides of the minimum ventilation cross section. The inner port and the outer port are connected, and the airflow is discharged from the exhaust body along the direction from the inner port to the outer port.

[0048] The outer hole is configured such that its projection in the plane defined by the first direction and the second direction has a first inclined side and a second inclined side extending from the minimum ventilation section, respectively, the first inclined side and the second inclined side having different lengths, wherein the first direction is perpendicular to the second direction.

[0049] In one embodiment, the inner hole is configured such that its projection in a plane defined by a first direction and a second direction has a third inclined side and a fourth inclined side extending from the minimum ventilation section, respectively, the third inclined side and the fourth inclined side having different lengths.

[0050] In one embodiment, the length of the third inclined side is greater than or equal to the length of the first inclined side.

[0051] In one embodiment, the length of the third inclined side is greater than or equal to the length of the second inclined side.

[0052] In one embodiment, the length of the fourth inclined side is greater than or equal to the length of the first inclined side.

[0053] In one embodiment, the length of the fourth inclined side is greater than or equal to the length of the second inclined side.

[0054] In one embodiment, the angle between the first inclined side and the first direction is smaller than the angle between the first inclined side and the second inclined side.

[0055] In one embodiment, the angle between the fourth inclined side and the first direction is smaller than the angle between the third inclined side and the fourth inclined side.

[0056] In one embodiment, the exhaust body includes a sloped connecting portion, the exhaust port is disposed on the sloped connecting portion, the minimum ventilation cross section has a first included angle β with the first direction, and the slope of the sloped connecting portion has a second included angle α with the second direction.

[0057] In one embodiment, a third included angle γ exists between the minimum ventilation cross section and the inclined surface of the inclined surface connection portion;

[0058] Among them, β<α; β+γ=90°-α.

[0059] In one embodiment, the minimum ventilation cross-section is parallel to the inclined surface of the inclined surface connection portion.

[0060] Where β+α=90°.

[0061] In one embodiment, the maximum depth of the inner hole is greater than the maximum depth of the outer hole.

[0062] In one embodiment, the minimum ventilation cross-section is circular or elliptical; and / or

[0063] The ventilation cross-section of the inner hole is circular, elliptical, rounded rectangle, square, or rhomboid; and / or

[0064] The ventilation cross-section of the outer hole is circular, elliptical, rounded rectangle, square, or rhomboid.

[0065] In one embodiment, there are multiple exhaust holes, which are arranged sequentially at equal or unequal intervals along the circumference of the exhaust body.

[0066] In one embodiment, the plurality of exhaust holes are distributed in a cluster or in an array.

[0067] In one embodiment, at least two of the exhaust ports are located on a virtual circle centered on the center of the exhaust body.

[0068] In one embodiment, the material of the exhaust body is polypropylene, polycarbonate, polyethylene, polystyrene, thermoplastic polymer structural material, or polyvinyl chloride.

[0069] According to a third aspect of the present invention, a breathing mask is provided, comprising the above-described exhaust structure, wherein the exhaust body is one or more of the following: a connector of the breathing mask, a frame of the breathing mask, a cup of the breathing mask, or a bend of the breathing mask.

[0070] In one embodiment, the breathing mask includes a padding assembly, a frame, a connector, and a bend, the bend being connected to one side of the frame via the connector, and the padding assembly being connected to the other side of the frame.

[0071] The exhaust body is the connecting member, and the connecting member includes:

[0072] The first mounting part is used to connect to the curved tube of the breathing mask; and

[0073] The second mounting part is used to connect to the frame of the breathing mask;

[0074] The first mounting part and the second mounting part are connected by a beveled connecting part. The first mounting part, the second mounting part and the beveled connecting part form an air cavity, which communicates with the internal chamber of the gasket assembly.

[0075] In one embodiment, the first mounting part and the bend form a cylindrical or spherical connection.

[0076] In one embodiment, the first mounting portion is integrally formed with the bend.

[0077] In one embodiment, the second mounting part is connected to the frame by welding, bonding or assembly.

[0078] In one embodiment, the air cavity is constructed as a groove-like structure between the first mounting portion, the second mounting portion, and the inclined connecting portion, the groove-like structure having a uniform or non-uniform groove width.

[0079] In one embodiment, the groove-like structure extends over the entire circumference of the connector, or

[0080] The groove-shaped structures are spaced apart in the circumferential direction of the connector.

[0081] In one embodiment, the breathing mask includes a frame and padding assemblies and tubing disposed on both sides of the frame.

[0082] The exhaust body is the frame, and the frame is connected to the hose through a beveled connecting part.

[0083] In one embodiment, the breathing mask includes a padding assembly, a frame, and a curved tube. The padding assembly includes a cup, the cup and the curved tube are respectively disposed on both sides of the frame, and the curved tube is rotatably connected to the frame.

[0084] The exhaust body is the cover cup.

[0085] In one embodiment, the breathing mask includes a padding assembly, a frame, a straight tube, and a bone beam arm, wherein the straight tube and the padding assembly are located on the inner and outer sides of the frame, respectively, and the bone beam arm is connected to both ends of the frame.

[0086] The exhaust body is the frame.

[0087] In one embodiment, the breathing mask includes a padding assembly, a frame, and a curved tube, wherein the padding assembly and the curved tube are located on opposite sides of the frame.

[0088] The exhaust body is the bent pipe.

[0089] Compared with the prior art, the advantages of the present invention are that by setting the exhaust port as an inner hole and an outer hole located on both sides of the minimum ventilation cross section, wherein the inner hole is an inner conical hole and the outer hole is an outer conical hole, when the airflow is discharged, it first passes through the inner conical hole, which can make the airflow more concentrated, thus making the gas smoother; subsequently, the airflow flows to the outer conical hole, which promotes the airflow to be more dispersed and rapidly reduces the airflow velocity, which helps to consume the energy of the airflow, thereby having a better noise reduction effect. Attached Figure Description

[0090] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0091] Figure 1 This is a three-dimensional structural diagram of the exhaust structure (in the form of a connector) in Embodiment 1 of the present invention;

[0092] Figure 2 This is an axial partial cross-sectional view of the exhaust structure (in the form of a connector) in Embodiment 1 of the present invention;

[0093] Figure 3a and Figure 3b yes Figure 2 Enlarged view at point A;

[0094] Figure 4 This is a top view of the exhaust structure (in the form of a connector) in Embodiment 1 of the present invention;

[0095] Figure 5 yes Figure 4 Enlarged view at point B;

[0096] Figure 6 This is a three-dimensional structural diagram of the exhaust structure (in the form of a connector) in Embodiment 2 of the present invention;

[0097] Figure 7 This is an axial partial cross-sectional view of the exhaust structure (in the form of a connector) in Embodiment 2 of the present invention;

[0098] Figure 8 yes Figure 7 Enlarged view at point C;

[0099] Figure 9 This is a three-dimensional structural diagram of the exhaust structure (in the form of a connector) in Embodiment 3 of the present invention;

[0100] Figure 10 This is an axial partial cross-sectional view of the exhaust structure (in the form of a connector) in Embodiment 3 of the present invention;

[0101] Figure 11 yes Figure 10 Enlarged view at point D;

[0102] Figure 12 This is an axial sectional view of the exhaust structure (in the form of a bent pipe) in Embodiment 4 of the present invention;

[0103] Figure 13 yes Figure 12 Enlarged view at point E;

[0104] Figure 14 This is a front view of the breathing mask in Embodiment 5 of the present invention;

[0105] Figure 15 yes Figure 14 The side view of the breathing mask shown;

[0106] Figure 16 yes Figure 14 A three-dimensional structural diagram of the connector shown (viewed from the front);

[0107] Figure 17 yes Figure 14 A three-dimensional structural diagram of the connector shown (viewed from the rear);

[0108] Figure 18 This is a front view of the connector in one embodiment of the breathing mask of the present invention;

[0109] Figure 19 This is a front view of the connector in another embodiment of the breathing mask of the present invention;

[0110] Figure 20 This is a front view of the connector in another embodiment of the breathing mask of the present invention;

[0111] Figure 21 This is a front view of the connector in another embodiment of the breathing mask of the present invention;

[0112] Figure 22a This is a front view of the breathing mask in Embodiment 7 of the present invention;

[0113] Figure 22b This is a side view of the breathing mask in Embodiment 7 of the present invention;

[0114] Figure 22c yes Figure 22b Enlarged view at point F;

[0115] Figure 22d yes Figure 22c Sectional view at CC;

[0116] Figure 22e yes Figure 22d A magnified view at point G;

[0117] Figure 23a This is a front view of the breathing mask in Embodiment 8 of the present invention;

[0118] Figure 23b This is a side view of the breathing mask in Embodiment 8 of the present invention;

[0119] Figure 23c yes Figure 23b A magnified view at point H;

[0120] Figure 24 This is a front view of the breathing mask in Embodiment 9 of the present invention;

[0121] Figure 25 yes Figure 24 The diagram shows a cross-sectional view of the breathing mask at point BB.

[0122] Figure label:

[0123] 1. Padding assembly; 12. Bra cup; 2. Frame; 3. Connector; 4. Bend; 7. Straight tube; 8. Rib arm;

[0124] 31. First mounting part; 32. Second mounting part; 33. Angled connecting part; 34. Air cavity;

[0125] 131, 231, 331, 431, Exhaust port;

[0126] 301. Inner hole; 302. Outer hole; 303. Minimum ventilation section;

[0127] 3011, Third inclined edge; 3012, Fourth inclined edge; 3013, First inner edge; 3014, Second inner edge;

[0128] 3021, First inclined edge; 3022, Second inclined edge; 3023, First outer edge; 3024, Second outer edge. Detailed Implementation

[0129] The invention will now be further described with reference to the accompanying drawings.

[0130] like Figure 1-13 As shown, according to a first aspect of the present invention, the present invention provides an exhaust structure comprising an exhaust body and an exhaust port disposed on the exhaust body. The exhaust structure of the present invention is preferably applied to a breathing mask (the breathing mask may be a full-face mask, a nasal mask, an oral mask, a nasal pad mask, or an oronasal mask, etc.), wherein the exhaust body may be one or more of the following: a connector of the breathing mask, a frame of the breathing mask, a cup of the breathing mask, or a bend in the breathing mask. In other words, the exhaust port may be disposed on one or more of the following: a connector of the breathing mask, a frame of the breathing mask, a cup of the breathing mask, or a bend in the breathing mask.

[0131] Example 1

[0132] In this embodiment 1, as Figures 1-5 As shown, the exhaust structure includes an exhaust body and an exhaust port 331 disposed on the exhaust body, wherein the exhaust body is constructed in the form of a connector 3.

[0133] Specifically, such as Figure 2 As shown, the exhaust port 331 has a minimum ventilation section 303. The exhaust port 331 includes an inner hole 301 and an outer hole 302 located on both sides of the minimum ventilation section 303. The inner hole 301 and the outer hole 302 are connected. The airflow is discharged from the exhaust body along the direction from the inner hole 301 to the outer hole 302.

[0134] More specifically, the inner hole 301 is constructed as an inner conical hole with a decreasing air passage cross-section along the airflow direction, while the outer hole 302 is constructed as an outer conical hole with an increasing air passage cross-section along the airflow direction. In other words, the inner hole 301 and the outer hole 302 share a minimum air passage cross-section 303, which is both the minimum air passage cross-section of the inner hole 301 and the minimum air passage cross-section of the outer hole 302.

[0135] It should be noted that an inner conical orifice refers to an inner orifice 301 whose cross-sectional area decreases gradually in the airflow direction, thus giving the inner orifice 301 a gradually contracting shape in the airflow direction. Conversely, an outer conical orifice refers to an outer orifice 302 whose cross-sectional area increases gradually in the airflow direction, thus giving the outer orifice 302 a gradually expanding shape in the airflow direction. The cross-sectional area can be, for example, the radial cross-section of the exhaust orifice 331.

[0136] The advantage of an inner conical orifice is that it can concentrate the airflow, making the gas smoother; while the advantage of an outer conical orifice is that it can disperse the airflow more and reduce its speed. Therefore, in this invention, by constructing the inner hole 301 as an inner conical orifice, the airflow will first be concentrated under the structural effect of the inner conical orifice, thereby making the gas smoother; while the outer hole 302 is constructed as an outer conical orifice (see [link]). Figure 4 and Figure 5 When the airflow passes through the outer hole 302, it will promote the airflow to be more dispersed and the airflow velocity will be reduced rapidly, which will help consume the energy of the airflow and thus have a better noise reduction effect.

[0137] The minimum ventilation section 303 forms a first angle β with the first direction. The exhaust body includes an inclined connecting portion 33, and an exhaust port 331 is disposed on the inclined connecting portion 33. The minimum ventilation section 303 and the inclined surface of the inclined connecting portion 33 form a third angle γ. The inclined surface of the inclined connecting portion 33 forms a second angle α with the second direction. The first direction and the second direction are in a mutually perpendicular positional relationship. Wherein, β < α; β + γ = 90° - α.

[0138] It should be noted that, in this embodiment 1, the first direction can be the axial direction of the exhaust body (connector 3) (i.e., Figure 2 The vertical direction indicated by the Y-axis), the second direction can be the radial direction of the exhaust body (connector 3) (i.e., the direction of the exhaust body). Figure 2 (The vertical direction indicated by the X-axis).

[0139] In a preferred embodiment, the first included angle β is 0°-70°, and more preferably, the first included angle β is 10°-45°, for example, 30°.

[0140] In a preferred embodiment, the second included angle α is 10°-90°, and more preferably, the second included angle α is 35°-55°, for example, 45°.

[0141] By adjusting the first included angle β, the direction of the gas discharged through the exhaust port 331 can be changed. For example, when the first included angle β is the preferred value mentioned above, the exhaust port 331 has the optimal discharge direction, which can avoid mutual interference between the airflows discharged from multiple exhaust ports 331, thus preventing a decrease in exhaust efficiency; at the same time, it will also change the phase angle between the vector directions of multiple airflows (such as...). Figure 4 As shown, θ3) increases, which is conducive to the diffusion of airflow and can further reduce the effect of blowing into people, thus providing a better user experience for the user and their bed partner.

[0142] like Figure 2 The cross section shown is the projection of the exhaust body onto a plane defined by the first and second directions. This plane can be, for example, a vertical plane that axially penetrates the exhaust body when the exhaust body is a cylindrical or annular structure.

[0143] Please refer to Figure 2 , Figure 3a and Figure 3b The outer hole 302 is constructed such that its projection in the plane has a first outer edge 3023, a second outer edge 3024, a first inclined edge 3021 extending from the minimum ventilation section 303 to the first outer edge 3023, and a second inclined edge 3022 extending from the minimum ventilation section 303 to the second outer edge 3024. The first outer edge 3023 and the second outer edge 3024 are positioned opposite each other. In the plane, the first inclined edge 3021 is a higher inclined edge, and the second inclined edge 3022 is a lower inclined edge; that is, the first inclined edge 3021 is located higher than the second inclined edge 3022.

[0144] More specifically, the first outer edge 3023 and the second outer edge 3024 are actually the projections of the outermost circumferential outer edge of the outer hole 302 (i.e., the side furthest from the minimum ventilation section 303) into this plane. For example... Figure 3a As shown, the airflow exiting from the outer hole 302 has an airflow vector m, which extends along the center of the outer hole 302 to the outermost axial edge of the outer hole 302 and is approximately perpendicular to the outermost circumferential edge of the outer hole 302. The first inclined edge 3021 is located above and below the airflow vector m.

[0145] Understandably, the projection of the outer hole 302 onto the plane can be an irregular quadrilateral, wherein the first inclined side 3021 and the second inclined side 3022 are two opposite sides of the quadrilateral; more specifically, the length of the first inclined side 3021 is different from the length of the second inclined side 3022, for example, the length of the first inclined side 3021 is greater than or less than the length of the second inclined side 3022. Figure 3a and Figure 3b In the embodiment shown, the length of the first inclined side 3021 is less than the length of the second inclined side 3022.

[0146] Similar to the outer aperture 302, the inner aperture 301 is constructed such that its projection in the plane has a first inner edge 3013, a second inner edge 3014, a third inclined edge 3011 extending from the minimum ventilation section 303 to the first inner edge 3013, and a fourth inclined edge 3012 extending from the minimum ventilation section 303 to the second inner edge 3014. The first inner edge 3013 and the second inner edge 3014 are positioned opposite each other. In the plane, the third inclined edge 3011 is a higher inclined edge, and the fourth inclined edge 3012 is a lower inclined edge; that is, the third inclined edge 3011 is located higher than the fourth inclined edge 3012.

[0147] More specifically, the first inner edge 3013 and the second inner edge 3014 are actually the projections of the innermost (i.e., the side furthest from the minimum ventilation section 303) circumferential outer edge of the inner hole 301 onto this plane. For example... Figure 3a As shown, relative to the airflow vector m, the third inclined side 3011 is located above the airflow vector m, and the fourth inclined side 3012 is located below the airflow vector m.

[0148] The projection of the inner hole 301 onto the plane can also be an irregular quadrilateral, wherein the third inclined side 3011 and the fourth inclined side 3012 are two opposite sides of the quadrilateral. Specifically, the length of the third inclined side 3011 is different from the length of the fourth inclined side 3012, for example, the length of the third inclined side 3011 is greater than or less than the length of the fourth inclined side 3012. Figure 3a and Figure 3b In the embodiment shown, the length of the third inclined side 3011 is greater than the length of the fourth inclined side 3012.

[0149] Understandably, since the inner hole 301 and the outer hole 302 share the minimum ventilation cross section, the first inclined edge 3021 and the third inclined edge 3011 extend outward and inward respectively from the same position of the minimum ventilation cross section 303, while the second inclined edge 3022 and the fourth inclined edge 3012 extend outward and inward respectively from the same position of the minimum ventilation cross section 303. The first inclined edge 3021 and the first direction (e.g., Figure 3a The angles between the Y-axis direction shown and the first direction, as well as the angle between the fourth inclined side 3012 and the first direction, play a crucial role in noise control.

[0150] Specifically, the smaller the angle between the first inclined edge 3021 and the first direction, the better the noise control effect. Similarly, the smaller the angle between the fourth inclined edge 3012 and the first direction, the better the noise control effect.

[0151] like Figure 3aAs shown, gas is discharged from the lower direction of the inner hole 301. When the angle between the first inclined edge 3021 and the first direction is smaller, and the angle between the fourth inclined edge 3012 and the first direction is also smaller, the vertical component m2 of the airflow is reduced, while the horizontal component m1 increases accordingly. The resulting airflow vector m is approximately perpendicular or nearly perpendicular to the inclined surface of the inclined connecting part 33, thus dispersing the discharged airflow and reducing its velocity, thereby reducing noise and preventing airflow from blowing into the bed. Conversely, when the angle between the first inclined edge 3021 and the first direction is larger, and the angle between the fourth inclined edge 3012 and the first direction is also larger, the vertical component m2 of the airflow is strengthened, while the horizontal component m1 is reduced accordingly. Therefore, the airflow becomes more concentrated, thus increasing noise.

[0152] However, considering that the smaller the angle between the first inclined edge 3021 and the first direction and the angle between the fourth inclined edge 3012 and the first direction, the greater the processing difficulty, it is necessary to select appropriate angles to ensure that noise is reduced as much as possible while meeting the processing requirements, thereby improving the user experience, reducing the processing difficulty, and improving the quality of the product.

[0153] In a preferred embodiment, the angle between the first inclined edge 3021 and the first direction is 0°-15°, preferably 5°. The angle between the first inclined edge 3021 and the second inclined edge 3022 is 70°-120°. The first inclined edge 3021 and the second inclined edge 3022 are arranged opposite to each other (see [link to previous embodiment]). Figure 2 , Figure 3a and Figure 3b ).

[0154] In a preferred embodiment, the angle between the fourth inclined edge 3012 and the first direction is 0°-15°, preferably 5°. The angle between the third inclined edge 3011 and the fourth inclined edge 3012 is 45°-120°. The third inclined edge 3011 and the fourth inclined edge 3012 are arranged opposite to each other (see [link to previous embodiment]). Figure 2 , Figure 3a and Figure 3b ).

[0155] Furthermore, by controlling the angle of each inclined side, the lengths of each inclined side can be made to be the same or different. Alternatively, by controlling the length of each inclined side, the angles of each inclined side can be made different. For example, the length of the third inclined side 3011 can be set to be greater than or equal to the length of the first inclined side 3021. Alternatively, the length of the third inclined side 3011 can also be greater than or equal to the length of the second inclined side 3022. Alternatively, the length of the fourth inclined side 3012 can be greater than or equal to the length of the first inclined side 3021. Alternatively, the length of the fourth inclined side 3012 can also be greater than or equal to the length of the second inclined side 3022.

[0156] For example Figure 3a and Figure 3b In the embodiment shown, the length of the third inclined side 3011 is greater than the length of the fourth inclined side 3012, the length of the fourth inclined side 3012 is greater than the length of the second inclined side 3022, and the length of the second inclined side 3022 is greater than the length of the first inclined side 3021. That is, the lengths of each inclined side are as follows: length of the third inclined side 3011 > length of the fourth inclined side 3012 > length of the second inclined side 3022 > length of the first inclined side 3021.

[0157] like Figure 3a and Figure 3b As shown, the inner hole 301 and the outer hole 302 are constructed with different structural forms. More specifically, the maximum depth of the inner hole 301 is greater than the maximum depth of the outer hole 302. In other words, the minimum ventilation section 303 is closer to the outer hole 302, which can promote noise reduction. The maximum depth of the inner hole 301 can, for example, be equal to the length of the third inclined side 3011, and the maximum depth of the outer hole 302 can, for example, be equal to the length of the second inclined side 3022.

[0158] Furthermore, the minimum ventilation section 303 can be circular or elliptical (e.g., Figure 5 (As shown). The ventilation cross-section of the inner hole 301 is circular, elliptical, rounded rectangle, square, or rhomboid. The ventilation cross-section of the outer hole 302 is circular, elliptical, rounded rectangle, square, or rhomboid. Understandably, the ventilation cross-sections of the inner hole 301 and the outer hole 302 can also be irregular shapes. Generally speaking, regular shapes are easier to process and have lower costs. The minimum ventilation cross-section 303, the ventilation cross-section of the inner hole 301, and the ventilation cross-section of the outer hole 302 can be the same or different.

[0159] In a preferred embodiment, the ventilation cross-section of the inner hole 301 can be elliptical or rounded rectangle (similar to a racetrack shape), and the ventilation cross-section of the outer hole 302 is elliptical or approximately circular, which can provide sufficient space for gas discharge and disperse the gas to avoid generating edge noise or high-frequency noise similar to whistling.

[0160] The inner hole 301 and the outer hole 302 can be formed by the upper and lower molds interlocking. The design of the inner hole 301 as an inner conical hole and the outer hole 302 as an outer conical hole facilitates the interlocking of the upper and lower molds during forming, reduces the number of multiple slides on the mold, shortens mold design modification time, thereby reducing process costs and maintaining simplicity in processing design. Specific forming methods can employ existing forming methods, which will not be elaborated upon in this invention.

[0161] The number of exhaust ports 331 (or exhaust ports 431) is multiple (e.g.) Figure 1 (As shown). Multiple exhaust holes 331 are arranged sequentially along the circumference of the exhaust body (connector 3) at equal or unequal intervals.

[0162] Furthermore, at least two exhaust ports 331 are located on a virtual circle centered on the center of the exhaust body (connector 3).

[0163] like Figure 4 In the preferred embodiment shown, all the exhaust holes 331 are distributed in a virtual circle centered on the center of the exhaust body (connector 3). Figure 4 On the dashed circle S shown, an annular exhaust direction can be formed, which can minimize the interference between exhaust airflows and alleviate the problem of airflow entanglement.

[0164] like Figure 4 As shown, 23 exhaust holes are evenly distributed within a 300° range on the virtual circle S. Each exhaust hole 331 has a phase angle of θ3, which is approximately 13°. The phase angle θ3 represents the exhaust range of each exhaust hole 331.

[0165] by Figure 4 Taking one of the exhaust holes 331 as an example, the line connecting the midpoint of the line connecting the exhaust hole 331 and an adjacent exhaust hole 331 to the center of the exhaust body is L1, and the line connecting the midpoint of the line connecting the exhaust hole 331 and another adjacent exhaust hole 331 to the center of the exhaust body is L2. The phase angle of the exhaust hole 331 mentioned in this article refers to the included angle between the above-mentioned connecting lines L1 and L2.

[0166] like Figure 14 In the preferred embodiment shown (where the exhaust structure has been mounted on the breathing mask), the thick solid arrow indicates the annular exhaust direction formed by the exhaust ports 331. The annularly distributed exhaust ports 331 can prevent the exhaust airflow from being affected by other components, thus helping to reduce noise.

[0167] exist Figure 1In the preferred embodiment shown, a plurality of exhaust holes 331 are arranged sequentially along the circumference of the exhaust body (connector 3) at equal or unequal intervals. The equally spaced exhaust holes 331 facilitate control of the air column spacing of the exhaust airflow, thus helping to reduce noise.

[0168] Understandably, in other embodiments, the multiple exhaust holes 331 may also have other arrangements, such as clusters or arrays of concentrated distribution, or multiple rings of arrangement, to increase exhaust volume.

[0169] The exhaust body is made of polypropylene (PP), polycarbonate (PC), polyethylene (PE), polystyrene (PS), thermoplastic structural material (ABS), or polyvinyl chloride (PVC).

[0170] Example 2

[0171] In this embodiment 2, the exhaust structure includes an exhaust body and an exhaust port 331 disposed on the exhaust body. Similar to the above embodiment 1, the exhaust body is also constructed in the form of a connector 3.

[0172] The following will describe in detail the differences between this embodiment and Embodiment 1 above, while the similarities will not be repeated.

[0173] like Figure 6 , Figure 7 and Figure 8 As shown, the exhaust body includes a sloped connecting portion 33, and an exhaust port 331 is disposed on the sloped connecting portion 33. Unlike Embodiment 1 described above, in this Embodiment 2, the minimum ventilation cross-section 303 is parallel to the slope of the sloped connecting portion 33 (e.g., ...). Figure 7 As shown), the inclined surface of the inclined surface connecting part 33 is perpendicular to the second direction (i.e., Figure 7 The horizontal direction (as shown by the X-axis) has a second included angle α. The minimum ventilation section 303 and the first direction (i.e., Figure 7 The vertical direction (shown as the Y-axis) has a first included angle β. Here, β and α are complementary angles, i.e., β + α = 90°.

[0174] In a preferred embodiment, the second included angle α is 10°-70°, and more preferably, the second included angle α is 45°-55°.

[0175] Unlike existing hourglass-shaped exhaust ports, the minimum ventilation cross-section 303 of this invention is circular, while the ventilation cross-sections of the inner hole 301 and the outer hole 302 are both elliptical. This is because during exhaust, the airflow has more space to diffuse along the long side of the elliptical ventilation cross-section, and the multiple exhaust ports 331 are arranged in a ring (e.g., Figure 6Under the structural configuration shown, the mutual interference between the airflows discharged from each exhaust port 331 can be minimized.

[0176] It is understood that, in this embodiment 2, the ventilation cross-section of the inner hole 301 can also be circular, rounded rectangle, square, or rhomboid. The ventilation cross-section of the outer hole 302 can also be circular, rounded rectangle, square, or rhomboid.

[0177] In this embodiment 2, the definitions of the first direction and the second direction are the same as those in the above embodiment 1.

[0178] Unlike Embodiment 1 described above, in Embodiment 2, the minimum ventilation section 303 is parallel to the inclined surface of the inclined connecting portion 33, and the minimum ventilation section 303 can be located at the middle thickness position of the inclined connecting portion 33 or at a thickness position near the outer hole 302. When the minimum ventilation section 303 is located at the middle thickness position of the inclined connecting portion 33, the hole depth of the inner hole 301 and the hole depth of the outer hole 302 are the same; when the minimum ventilation section 303 is located at a thickness position near the outer hole 302, the hole depth of the inner hole 301 is greater than the hole depth of the outer hole 302.

[0179] Furthermore, when the minimum ventilation section 303 is located at the middle thickness position of the inclined connecting portion 33, the inner hole 301 and the outer hole 302 can be configured symmetrically about the minimum ventilation section 303, such as... Figure 7 As shown. Further, the first inclined edge 3021 and the second inclined edge 3022 are symmetrically arranged about the normal of the inclined surface connection portion 33; in other words, the first inclined edge 3021 and the second inclined edge 3022 have the same length. In a preferred embodiment, as... Figure 8 As shown, the angle between the first inclined side 3021 and the second inclined side 3022 is 20°-120°, for example 30°.

[0180] In a preferred embodiment, the inner hole 301 and the outer hole 302 are symmetrically arranged, so the included angle between the third inclined edge 3011 and the fourth inclined edge 3012 is also 20°-120°. Thus, the third inclined edge 3011 and the fourth inclined edge 3012 are also symmetrical about the normal of the inclined surface connection portion 33, and both have the same length.

[0181] It is conceivable that the inner hole 301 and the outer hole 302 can also be configured as an asymmetrical structure, for example, the depth of the inner hole 301 is greater than or less than the depth of the outer hole 302. More specifically, when the minimum ventilation section 303 is located near the thickness position of the outer hole 302, the depth of the inner hole 301 is greater than the depth of the outer hole 302, and vice versa.

[0182] When the inner hole 301 and the outer hole 302 adopt the above-mentioned asymmetrical structure, the first inclined side 3021 and the second inclined side 3022 of the outer hole can also be set to be symmetrical about the normal direction of the inclined surface connecting part 33, that is, the first inclined side 3021 and the second inclined side 3022 have the same length; the third inclined side 3011 and the fourth inclined side 3012 of the inner hole 301 are also symmetrical about the normal direction of the inclined surface connecting part 33, that is, they have the same length.

[0183] In this embodiment 2, the specific distribution of the exhaust holes 331 can adopt various forms described in embodiment 1 above (for example, refer to...). Figure 6 (This will not be elaborated further.) Meanwhile, the exhaust body can be made of any of the materials described in Example 1 above.

[0184] Example 3

[0185] In this embodiment 3, the exhaust structure includes an exhaust body and an exhaust hole 331 disposed on the exhaust body. Similar to the above embodiment 2, the exhaust body is also constructed in the form of a connector 3.

[0186] The following will describe in detail the differences between this embodiment and Embodiment 2 above, while the similarities will not be repeated.

[0187] like Figure 9 , Figure 10 and Figure 11 As shown, the exhaust body includes a sloped connecting portion 33, and an exhaust port 331 is disposed on the sloped connecting portion 33. Similarly, in this embodiment 3, the minimum ventilation section 303 is kept parallel to the slope of the sloped connecting portion 33 (e.g., Figure 10 As shown), therefore the inclined surface of the inclined surface connecting part 33 is in the second direction ( Figure 10 The horizontal direction shown by the X-axis has a second included angle α, and the minimum ventilation section 303 is perpendicular to the first direction (i.e., the horizontal direction shown by the X-axis). Figure 10 The vertical direction (shown as the Y-axis) has a first included angle β. Here, β and α are complementary angles, i.e., β + α = 90°. The second included angle α can be the same as in Example 2.

[0188] Unlike Embodiment 2 described above, as Figure 11 As shown, in this embodiment 3, the length of the first inclined side 3021 is greater than the length of the second inclined side 3022. It is conceivable that the length of the first inclined side 3021 could also be set to be less than the length of the second inclined side 3022.

[0189] By setting the lengths of the first inclined edge 3021 and the second inclined edge 3022 to be unequal, the sound amplification problem of the outer cone hole can be effectively reduced, so that the airflow can maintain a relatively stable direction when it is discharged, thereby providing a sufficiently stable blowing airflow and ensuring that the overall noise level is maintained at a low level.

[0190] In a preferred embodiment, the length of the first inclined edge 3021 is greater than the length of the second inclined edge 3022, which is easier to implement in terms of manufacturing process and has a lower cost.

[0191] Furthermore, by controlling the angle of each inclined side, the lengths of each inclined side can be made to be the same or different. Alternatively, by controlling the length of each inclined side, the angles of each inclined side can be made different. For example, the length of the third inclined side 3011 can be set to be greater than or equal to the length of the first inclined side 3021. Alternatively, the length of the third inclined side 3011 can also be greater than or equal to the length of the second inclined side 3022. Alternatively, the length of the fourth inclined side 3012 can be greater than or equal to the length of the first inclined side 3021. Alternatively, the length of the fourth inclined side 3012 can also be greater than or equal to the length of the second inclined side 3022.

[0192] For example Figure 10 and Figure 11 In the illustrated embodiment, the length of the fourth inclined side 3012 is greater than the length of the first inclined side 3021, the length of the first inclined side 3021 is greater than the length of the third inclined side 3011, and the length of the third inclined side 3011 is greater than the length of the second inclined side 3022. That is, the lengths of each inclined side are as follows: fourth inclined side 3012 > first inclined side 3021 > third inclined side 3011 > second inclined side 3022. By shortening the length of the second inclined side 3022, the first inclined side 3021 is aligned with the horizontal direction (…). Figure 11 The angle θ1 between the X-axis direction shown is greater than the angle θ2 between the second inclined side 3022 and the horizontal direction.

[0193] For example, the second inclined edge 3022 and the second direction ( Figure 11 The included angle θ2 between the X-axis direction shown is 0°-60°. Preferably, the included angle between the second inclined side 3022 and the second direction is 30°-45°.

[0194] In this embodiment 2, the definitions of the first direction and the second direction are the same as those in the above embodiment 1.

[0195] It is understood that, in this embodiment 3, the ventilation cross-section of the inner hole 301 can also be circular, rounded rectangle, square, or rhomboid. The ventilation cross-section of the outer hole 302 can also be circular, rounded rectangle, square, or rhomboid.

[0196] In this embodiment 3, the specific distribution of the exhaust holes 331 can adopt various forms described in embodiment 1 above (for example, refer to...). Figure 9 (This will not be elaborated further.) Meanwhile, the exhaust body can be made of any of the materials described in Example 1 above.

[0197] Example 4

[0198] In this embodiment 4, as Figure 12 and Figure 13 As shown, the exhaust structure includes an exhaust body and an exhaust port 431 disposed on the exhaust body, wherein the exhaust body is constructed in the form of a curved tube 4 of a breathing mask.

[0199] The vent 431 can be implemented using various schemes similar to those in Embodiments 1, 2, or 3 described above, and will not be elaborated further here. Figure 13 In the preferred embodiment shown, the exhaust port 431 has the same structural form as the exhaust port 331 in Embodiment 1 above.

[0200] It should be noted that in this embodiment 4, as Figure 12 and Figure 13 As shown, the inclined connecting part 33 is the bent part of the bend 4.

[0201] In this embodiment 4, the first direction can be the circumferential direction of the bend 4 (i.e., Figure 12 The direction indicated by the Y-axis, for more details, can be found in [reference needed]. Figure 15 The second direction can be the insertion / removal direction of the bend 4 after installation (i.e., the circumferential direction after installation). Figure 12 The direction indicated by the X-axis, for more details, can be found in [reference needed]. Figure 15 (Insert / remove direction after installation of the middle bend pipe 4).

[0202] In this embodiment 4, the specific distribution of the exhaust holes 431 can adopt various forms described in embodiment 1 above (for example, refer to...). Figure 12 (This will not be elaborated further.) Meanwhile, the exhaust body can be made of any of the materials described in Example 1 above.

[0203] Therefore, based on the above embodiments, it is conceivable that the exhaust body can also be constructed as a frame of a breathing mask or a cup of a breathing mask. That is, the exhaust port 331 mentioned in the embodiments and implementations of the present invention can be constructed on the connector 3 of the breathing mask; the exhaust port 431 mentioned in the above embodiments and implementations can be constructed on the bend 4 of the breathing mask. In addition, the exhaust port 331 (or exhaust port 431) mentioned in the embodiments and implementations of the present invention can also be constructed on the frame of the breathing mask or the cup of the breathing mask.

[0204] Furthermore, the connector 3, the bend 4, the frame, and the cup can all be constructed from the various materials described in Example 1, and the materials of the connector 3, the bend 4, the frame, and the cup can be the same or different.

[0205] like Figures 14-25 As shown, according to a second aspect of the present invention, the present invention provides a breathing mask, which may be a full-face mask, a nose mask, a nose pad mask, or a mouth-nose mask, etc.

[0206] Specifically, the breathing mask includes the exhaust structure described above. As mentioned above, the exhaust body can be one or more of the following: the breathing mask connector 3, the breathing mask frame 2, the breathing mask cup 12, or the breathing mask bend 4.

[0207] Example 5

[0208] In this embodiment 5, the breathing mask is a full-face mask. Specifically, as shown... Figure 14 and Figure 15 As shown, the breathing mask includes a padding assembly 1, a frame 2, a connector 3, and a bend 4. The bend 4 is connected to one side of the frame 2 via the connector 3, and the padding assembly 1 is connected to the other side of the frame 2.

[0209] In this embodiment 5, the exhaust body is constructed as a connector 3. Specifically, as shown in the figure... Figure 16 and Figure 17 As shown, the connector 3 includes a first mounting portion 31, a second mounting portion 32, and a beveled connecting portion 33 (refer to the above description; the exhaust holes 331 or 431 in the above embodiments and implementations are all distributed on the beveled connecting portion 33). The first mounting portion 31 is used to connect to the curved tube 4 of the breathing mask. The second mounting portion 32 is used to connect to the frame 2 of the breathing mask.

[0210] The first mounting part 31 and the second mounting part 32 are connected by a beveled connecting part 33, and the first mounting part 31, the second mounting part 32 and the beveled connecting part 33 form an air cavity 34 (e.g., Figure 17 As shown, the air chamber 34 communicates with the internal chamber of the padding assembly 1 and the chamber formed between the breathing mask and the user's face. The airflow inside the padding assembly 1 passes through the air chamber 34 and is discharged into the atmosphere through the exhaust port 331.

[0211] In a preferred embodiment, the connector 3, the frame 2, and the bend 4 are all constructed as independent components. After the bend 4 is connected to the connector 3, the two can rotate together around the frame 2 along the concentric axis in a 360° circumferential direction.

[0212] The connector 3 and the bend 4 can be assembled together. The first mounting part 31 and the bend 4 form a cylindrical or spherical connection. Therefore, when the first mounting part 31 and the bend 4 are cylindrically connected, a rotating pair can be formed between the connector 3 and the bend 4; when the first mounting part 31 and the bend 4 are spherically connected, a spherical pair can be formed between the connector 3 and the bend 4.

[0213] In some other embodiments, the first mounting part 31 is integrally formed with the bend 4, that is, the connector 3 is integrally formed with the bend 4.

[0214] The second mounting part 32 of the connector 3 can be connected to the frame 2 by welding (e.g., ultrasonic welding), bonding or assembly.

[0215] In a preferred embodiment, the connector 3 is made of the same material as the frame 2, and the connector 3 is connected to the frame 2 by ultrasonic welding.

[0216] In a preferred embodiment, the connector 3 and the frame 2 are made of different materials, and the connector 3 is assembled to the frame 2.

[0217] The materials of connector 3, frame 2 and bend 4 can be polypropylene (PP), polycarbonate (PC), polyethylene (PE), polystyrene (PS), thermoplastic structural material (ABS) or polyvinyl chloride (PVC) as described above.

[0218] The air cavity 34 is constructed as a groove-like structure between the first mounting part 31, the second mounting part 32, and the inclined connecting part 33. The groove-like structure has a uniform or non-uniform groove width. Figure 17 As shown, the grooved structure extends along the entire circumference of the connector 3; or the grooved structure is distributed at intervals along the circumference of the connector 3, that is, distributed around the annular portion of the connector 3. The air cavity 34 can increase the airflow channel, slow down the airflow velocity, and thus reduce exhaust noise.

[0219] like Figure 16 and Figure 17 In the preferred embodiment shown, the overall shape of the connector 3 is circular.

[0220] In some other embodiments, such as Figures 18-21 As shown, the overall shape of the connector 3 can also be other regular or irregular shapes. The distribution of the vent holes 331 can depend on the overall shape of the connector 3. For example, the radial cross-section of the connector 3 can be constructed as follows: Figure 16 The circle shown, as Figure 19 The ellipse shown or as Figure 18 , Figure 20 and Figure 21The irregular shape shown is composed of at least two arc segments, so the distribution of the exhaust holes 331 can match the outer contour shape of the connector 3.

[0221] The specific construction form of the exhaust port 331 can adopt the exhaust port structure form described in the above embodiments and implementation methods, and will not be repeated here.

[0222] Other components or parts of the full-face mask not mentioned in this embodiment may adopt existing structural forms, and will not be described in detail here.

[0223] Example 6

[0224] In this embodiment 6, the breathing mask is a full-face mask. The following will mainly describe the differences between this embodiment 6 and the above embodiment 5, and the similarities will not be repeated.

[0225] In this embodiment 6, the breathing mask includes a frame 2 and padding assemblies 1 and hoses disposed on both sides of the frame 2. In this embodiment 6, the exhaust body is the frame 2, and the frame 2 is connected to the hose through a beveled connecting part 33. The hose can be rotatably connected to the frame 2, allowing it to rotate freely around the frame 2; or the hose can be fixedly connected to the frame 2, for example, by assembly and / or adhesive bonding.

[0226] Specifically, the inclined connecting portion 33 is located near the connection between the frame 2 and the hose. The vent 331 on the inclined connecting portion 33 can adopt the structural form of the above embodiments and implementations, which will not be described in detail here.

[0227] Unlike Embodiment 5 described above, Embodiment 6 does not use a bend 4, but instead uses a flexible hose. The flexible hose improves exhaust efficiency. Because in Embodiment 6, the exhaust body is the frame 2, meaning the exhaust holes 331 are constructed within the frame 2, a freely rotating bend 4 might affect the annular exhaust structure formed by multiple exhaust holes 331, thereby increasing noise and reducing exhaust efficiency. Therefore, using a bend avoids obstructing the exhaust path of the exhaust holes 331, thus preserving exhaust efficiency.

[0228] The specific construction form of the exhaust port 331 can adopt the exhaust port structure form described in the above embodiments and implementation methods, and will not be repeated here.

[0229] Other components or parts of the full-face mask not mentioned in this embodiment may adopt existing structural forms, and will not be described in detail here.

[0230] Example 7

[0231] In this embodiment 7, the breathing mask is a full-face mask. The following will mainly describe the differences between this embodiment 7 and the above embodiment 5, and the similarities will not be repeated.

[0232] like Figure 22a , Figure 22b , Figure 22c , Figure 22d and Figure 22e As shown in Embodiment 7, the breathing mask includes a padding assembly 1, a frame 2, and a curved tube 4. The padding assembly 1 includes a cup 12, with the cup 12 and the curved tube 4 respectively disposed on both sides of the frame 2, and the curved tube 4 rotatably connected to the frame 2. The frame 2 and the curved tube 4, as well as the frame 2 and the cup 12, can be connected together by assembly, adhesive bonding, or ultrasonic welding, and the curved tube 4 can rotate freely along the axial direction.

[0233] In this embodiment 7, the exhaust body is the cup 12. That is, the exhaust port 131 is provided on the cup 12.

[0234] For details, please refer to Figure 22d and Figure 22e The inclined connecting part 33 can be the inclined surface of the cup 12. Therefore, the vent 131 is provided on the inclined surface of the cup 12, and the vent 131 is located on the cup 12 away from the cup surface. Therefore, the airflow direction discharged from the vent 131 is approximately the normal direction of the cup surface at that location, thereby effectively avoiding collision noise of the gas components.

[0235] like Figure 22a and Figure 22d As shown, multiple vent holes 131 are provided on both the left and right sides of the frame 2. Furthermore, the vent holes 131 on the left and right sides of the frame 2 have a certain distribution pattern. For example, the multiple vent holes 131 on the left side of the frame 2 form a left vent hole set, and the multiple vent holes 131 on the right side of the frame 2 form a right vent hole set. The left and right vent hole sets are symmetrically arranged about the frame 2.

[0236] The specific construction of the vent 131 can adopt the vent structure described in the above embodiments and implementations. For example, the vent 131 may include the inner hole 301 and the outer hole 302 as described in the above embodiments (e.g., Figure 22e As mentioned above, it will not be repeated here.

[0237] Other components or parts of the full-face mask not mentioned in this embodiment may adopt existing structural forms, and will not be described in detail here.

[0238] Example 8

[0239] In this embodiment 8, the breathing mask is a nasal mask.

[0240] like Figure 23a , Figure 23b and Figure 23cAs shown, in this embodiment 8, the breathing mask includes a padding assembly 1, a frame 2, a straight tube 7, and a bone beam arm 8. The straight tube 7 and the padding assembly 1 are located on the inner and outer sides of the frame 2, respectively, and the bone beam arm 8 is connected to both ends of the frame 2. The other end of the bone beam arm 8 is used to connect to the headband.

[0241] In this embodiment 8, the exhaust body is the frame 2, therefore the inclined connecting part 33 is the inclined surface of the frame 2, such as... Figure 23c As shown. That is to say, the vent 231 is set on the inclined surface of the frame 2.

[0242] The specific construction form of the exhaust port 231 can adopt the exhaust port structure form described in the above embodiments and implementation methods, and will not be repeated here.

[0243] It should be noted that the arrangement of the exhaust holes 231 is limited by the exhaust space and shape, and can be set to be arranged in a circular, elliptical or other irregular shape along the outer edge of the frame 2, and can be arranged in multiple circles (i.e., multiple exhaust holes 231 are located on multiple virtual circles respectively).

[0244] In a preferred embodiment, such as Figure 23a As shown, multiple exhaust holes 231 are arranged in a single ring, that is, multiple exhaust holes 231 are all located on a virtual circle with the center of the straight pipe 7 as the center.

[0245] like Figure 23a As shown, the trabecular arm 8 includes a left trabecular arm and a right trabecular arm, which correspond to the user's left and right hands, respectively, and are each marked with a label layer. For example, the left trabecular arm is marked with "L" and the right trabecular arm is marked with "R".

[0246] Other components or parts of the nose mask not mentioned in this embodiment may adopt existing structural forms, and will not be described in detail here.

[0247] Example 9

[0248] like Figure 24 and Figure 25 As shown, in this embodiment 9, the breathing mask includes a padding assembly 1, a frame 2, and a curved tube 4, as... Figure 25 As shown, the padding assembly 1 and the bend 4 are located on both sides of the frame 2.

[0249] In this embodiment 9, the exhaust body is a bend 4. That is, the exhaust port 431 is provided on the bend 4, as described in embodiment 4 above.

[0250] It should be noted that, in the face mask, the arrangement of the exhaust ports 431 is limited by the exhaust space and shape, and can be arranged in a clustered manner at the bend of the bend in the tube 4, which is the inclined connecting part 33 (please refer to Embodiment 4 above). Figure 12 and Figure 13 ).

[0251] The number and arrangement of the vent holes 431 can be set as needed, or adjusted according to the specific structure and processing method of the bend 4.

[0252] The specific construction form of the exhaust port 431 can adopt the exhaust port structure form described in the above embodiments and implementation methods, and will not be repeated here.

[0253] Other components or parts of the face mask not mentioned in this embodiment may adopt existing structural forms, and will not be described in detail here.

[0254] Although the invention has been described with reference to preferred embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An exhaust structure, characterized in that, It includes an exhaust body and an exhaust port disposed on the exhaust body, the exhaust port having a minimum ventilation cross section; The exhaust port includes an inner port and an outer port located on both sides of the minimum ventilation cross section. The inner port and the outer port are connected, and the airflow is discharged from the exhaust body along the direction from the inner port to the outer port. The inner port and the outer port are constructed with different structural forms. The inner hole is constructed as an inner conical hole with a decreasing air passage cross-section along the airflow direction, and the outer hole is constructed as an outer conical hole with an increasing air passage cross-section along the airflow direction. The outer hole is configured such that its projection in the plane defined by the first direction and the second direction has a first inclined side and a second inclined side extending from the minimum ventilation section, respectively. Wherein, the length of the first inclined side is greater than or less than the length of the second inclined side. The inner hole is configured such that its projection in the plane defined by the first and second directions has a third inclined side and a fourth inclined side extending from the minimum ventilation cross-section, the length of the third inclined side being greater than or less than the length of the fourth inclined side. Wherein, the first direction is perpendicular to the second direction; The exhaust body includes a sloped connecting portion, the exhaust port is disposed on the sloped connecting portion, and the minimum ventilation cross section has a third included angle γ with the sloped surface of the sloped connecting portion.

2. The exhaust structure according to claim 1, characterized in that, The minimum ventilation section has a first included angle β with the first direction, and the inclined surface of the inclined surface connection has a second included angle α with the second direction.

3. The exhaust structure according to claim 2, characterized in that, The outer hole is configured such that its projection in a plane defined by a first direction and a second direction has a first outer edge and a second outer edge, the first inclined edge extending from the minimum ventilation section to the first outer edge, and the second inclined edge extending from the minimum ventilation section to the second outer edge; The first outer edge is positioned opposite to the second outer edge.

4. The exhaust structure according to claim 2, characterized in that... β<α; β+γ=90°-α.

5. The exhaust structure according to claim 4, characterized in that, The first included angle β is 0°-70°.

6. The exhaust structure according to claim 5, characterized in that, The first included angle β is 10°-45°.

7. The exhaust structure according to claim 4, characterized in that, The second included angle α is 10°-90°.

8. The exhaust structure according to claim 7, characterized in that, The second included angle α is 35°-55°.

9. The exhaust structure according to claim 3, characterized in that, The angle between the first inclined side and the first direction is 0°-15°, and the angle between the first inclined side and the second inclined side is 70°-120°.

10. The exhaust structure according to claim 9, characterized in that, The inner hole is configured such that its projection in the plane defined by the first direction and the second direction has a first inner edge and a second inner edge, the third inclined edge extends from the minimum ventilation section to the first inner edge, and the fourth inclined edge extends from the minimum ventilation section to the second inner edge; The first inner edge is positioned opposite to the second inner edge.

11. The exhaust structure according to claim 10, characterized in that, The angle between the fourth inclined side and the first direction is 0°-15°, and the angle between the third inclined side and the fourth inclined side is 45°-120°.

12. The exhaust structure according to claim 3, characterized in that, The maximum depth of the inner hole is greater than the maximum depth of the outer hole.

13. The exhaust structure according to claim 1, characterized in that, The minimum ventilation cross section is circular or elliptical; and / or The ventilation cross-section of the inner hole is circular, elliptical, rounded rectangle, square, or rhomboid; and / or The ventilation cross-section of the outer hole is circular, elliptical, rounded rectangle, square, or rhomboid.

14. The exhaust structure according to claim 1, characterized in that, The number of exhaust holes is multiple, and the multiple exhaust holes are arranged sequentially along the circumference of the exhaust body at equal or unequal intervals.

15. The exhaust structure according to claim 14, characterized in that, The multiple exhaust holes are distributed in a cluster or in an array.

16. The exhaust structure according to claim 14, characterized in that, At least two of the exhaust ports are located on a virtual circle centered on the center of the exhaust body.

17. The exhaust structure according to claim 1, characterized in that, The material of the exhaust body is polypropylene, polycarbonate, polyethylene, polystyrene, thermoplastic polymer structural material or polyvinyl chloride.

18. An exhaust structure, characterized in that, It includes an exhaust body and an exhaust port disposed on the exhaust body, the exhaust port having a minimum ventilation cross section; The exhaust port includes an inner port and an outer port located on both sides of the minimum ventilation cross section. The inner port and the outer port are connected, and the airflow is discharged from the exhaust body along the direction from the inner port to the outer port. The inner port and the outer port are constructed with different structural forms. The outer hole is configured such that its projection in the plane defined by the first direction and the second direction has a first inclined side and a second inclined side extending from the minimum ventilation section, respectively, the first inclined side and the second inclined side having different lengths, wherein the first direction is perpendicular to the second direction; The inner hole is constructed such that its projection in the plane defined by the first direction and the second direction has a third inclined side and a fourth inclined side extending from the minimum ventilation section, respectively, and the third inclined side and the fourth inclined side have different lengths. The exhaust body includes a sloped connecting portion, the exhaust port is disposed on the sloped connecting portion, and the minimum ventilation cross section has a third included angle γ with the sloped surface of the sloped connecting portion.

19. The exhaust structure according to claim 18, characterized in that, The length of the third inclined side is greater than or equal to the length of the first inclined side.

20. The exhaust structure according to claim 18, characterized in that, The length of the third inclined side is greater than or equal to the length of the second inclined side.

21. The exhaust structure according to claim 18, characterized in that, The length of the fourth inclined side is greater than or equal to the length of the first inclined side.

22. The exhaust structure according to claim 18, characterized in that, The length of the fourth inclined side is greater than or equal to the length of the second inclined side.

23. The exhaust structure according to claim 18, characterized in that, The angle between the first inclined side and the first direction is smaller than the angle between the first inclined side and the second inclined side.

24. The exhaust structure according to claim 18, characterized in that, The angle between the fourth inclined side and the first direction is smaller than the angle between the third inclined side and the fourth inclined side.

25. The exhaust structure according to claim 18, characterized in that, The minimum ventilation section has a first angle β with the first direction, and the inclined surface of the inclined surface connection has a second angle α with the second direction.

26. The exhaust structure according to claim 25, characterized in that, β<α; β+γ=90°-α.

27. The exhaust structure according to claim 25, characterized in that, The minimum ventilation cross section is parallel to the inclined surface of the inclined surface connection part. Where β+α=90°.

28. The exhaust structure according to claim 18, characterized in that, The maximum depth of the inner hole is greater than the maximum depth of the outer hole.

29. The exhaust structure according to claim 18, characterized in that, The minimum ventilation cross section is circular or elliptical; and / or The ventilation cross-section of the inner hole is circular, elliptical, rounded rectangle, square, or rhomboid; and / or The ventilation cross-section of the outer hole is circular, elliptical, rounded rectangle, square, or rhomboid.

30. The exhaust structure according to claim 18, characterized in that, The number of exhaust holes is multiple, and the multiple exhaust holes are arranged sequentially along the circumference of the exhaust body at equal or unequal intervals.

31. The exhaust structure according to claim 30, characterized in that, The multiple exhaust holes are distributed in a cluster or in an array.

32. The exhaust structure according to claim 30, characterized in that, At least two of the exhaust ports are located on a virtual circle centered on the center of the exhaust body.

33. The exhaust structure according to claim 18, characterized in that, The material of the exhaust body is polypropylene, polycarbonate, polyethylene, polystyrene, thermoplastic polymer structural material or polyvinyl chloride.

34. A breathing mask, characterized in that, The exhaust structure includes any one of claims 1-17 or any one of claims 18-33, wherein the exhaust body is one or more of the following: a connector of a breathing mask, a frame of a breathing mask, a cup of a breathing mask, or a bend of a breathing mask.

35. The breathing mask according to claim 34, characterized in that, The breathing mask includes a padding assembly, a frame, a connector, and a bend, wherein the bend is connected to one side of the frame via the connector, and the padding assembly is connected to the other side of the frame. The exhaust body is the connecting member, and the connecting member includes: The first mounting part is used to connect to the curved tube of the breathing mask; as well as The second mounting part is used to connect to the frame of the breathing mask; The first mounting part and the second mounting part are connected by a beveled connecting part. The first mounting part, the second mounting part and the beveled connecting part form an air cavity, which communicates with the internal chamber of the gasket assembly.

36. The breathing mask according to claim 35, characterized in that, The first mounting part and the bend form a cylindrical or spherical connection.

37. The breathing mask according to claim 35, characterized in that, The first mounting part is integrally formed with the bend.

38. The breathing mask according to claim 35, characterized in that, The second mounting part is connected to the frame by welding, bonding or assembly.

39. The breathing mask according to claim 35, characterized in that, The air cavity is constructed as a groove-shaped structure between the first mounting part, the second mounting part, and the inclined connecting part, and the groove-shaped structure has a uniform or non-uniform groove width.

40. The breathing mask according to claim 39, characterized in that, The groove-like structure extends along the entire circumference of the connector, or The groove-shaped structures are spaced apart in the circumferential direction of the connector.

41. The breathing mask according to claim 34, characterized in that, The breathing mask includes a frame and padding assemblies and tubing disposed on both sides of the frame. The exhaust body is the frame, and the frame is connected to the hose through a beveled connecting part.

42. The breathing mask according to claim 34, characterized in that, The breathing mask includes a padding assembly, a frame, and a curved tube. The padding assembly includes a cup, the cup and the curved tube are respectively disposed on both sides of the frame, and the curved tube is rotatably connected to the frame. The exhaust body is the cover cup.

43. The breathing mask according to claim 34, characterized in that, The breathing mask includes a padding assembly, a frame, a straight tube, and a bone beam arm. The straight tube and the padding assembly are located on the inner and outer sides of the frame, respectively, and the bone beam arm is connected to both ends of the frame. The exhaust body is the frame.

44. The breathing mask according to claim 34, characterized in that, The breathing mask includes a padding assembly, a frame, and a curved tube, with the padding assembly and the curved tube located on opposite sides of the frame. The exhaust body is the bent pipe.

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