Respiratory mask

Abstract

The utility model relates to a respiratory mask relates to the positive pressure ventilation technical field, the utility model discloses a respiratory mask, including gasket subassembly and headband connecting subassembly, one side of gasket subassembly is used for with the face of user contact, and the other side of gasket subassembly is used for with headband connecting subassembly links, gasket subassembly is close to the one side of headband connecting subassembly and is provided with first opening, and first opening corresponds to the mouth and / or nose position of user, is provided with the connecting portion of first opening on first opening can cover first opening, therefore the exhaust hole on the connecting portion of corresponding position with first opening is closer to the mouth and nose of user, thereby the exhaust path of exhaust through first opening and exhaust hole is shorter, can therefore reduce the dead space of respiratory mask, accelerate the exhaust rate of user exhalation gas, reduce carbon dioxide residual in chamber, avoid causing the problem that carbon dioxide content is relatively higher in respiratory mask.

Description

Technical Field

[0001] This utility model relates to the field of positive pressure ventilation technology, and in particular to a breathing mask. Background Technology

[0002] The conventional structure of existing breathing masks generally includes several main components such as a pad, frame, curved tube, and headband. The pad is mounted on the frame, the frame connects to the curved tube, and the headband connects to the frame to secure the breathing mask to the user's face. The curved tube also connects to the breathing tubing and pressure supply equipment to provide positive pressure ventilation gas to the breathing mask. The shortcomings of existing breathing masks are as follows: Firstly, because the exhaust port is located on the curved tube, the distance between the exhaust port and the user's mouth and nose is relatively large, resulting in a larger dead space in the breathing mask and a slower rate of exhaled gas expulsion, leading to a relatively high carbon dioxide content in the breathing mask. Secondly, the airway connection between the pad and the curved tube is generally achieved by using the frame as an intermediate bridge, thus involving more structural components at the connection point. In actual assembly, the more structural components involved at the connection point, the greater the risk of air leakage at the connection gaps. Furthermore, when the user temporarily leaves the positive pressure ventilation equipment, the headband needs to be separated from the pad or frame and removed, which is cumbersome, and the re-wearing operation is also very complicated. Utility Model Content

[0003] This invention provides a breathing mask to solve at least one of the above-mentioned technical problems.

[0004] This utility model provides a breathing mask, including a pad assembly and a headband connecting assembly. One side of the pad assembly is for contacting the user's face, and the other side of the pad assembly is for connecting to the headband connecting assembly. The pad assembly has a first opening on the side near the headband connecting assembly. The first opening corresponds to at least one of the user's mouth and nose. The first opening has a connecting part that can cover the first opening. The headband connecting assembly is connected to the connecting part, thereby fixing the pad assembly to the user's face.

[0005] The connecting portion is provided with one or more vent holes that are in fluid communication with the first opening.

[0006] In one embodiment, the number of the first openings is one or more, and the number of the connecting portions corresponds one-to-one with the number of the first openings.

[0007] In one embodiment, the headband connection assembly is a one-piece structure. In one embodiment, the headband connection assembly includes bone arms, each of which is connected to an end of the connector and extends from the end of the connector along the user's face to the ear; or

[0008] Each of the aforementioned bone beam arms extends from one side of the corresponding connector along the direction from the user's face to the ear.

[0009] In one embodiment, one or more headband connection holes are provided at the ends of the bone beam arm away from the connecting portion.

[0010] In one embodiment, the end of the bone beam arm away from the connecting part is provided with a plurality of extension arms, and each extension arm is provided with a headband connection hole.

[0011] In one embodiment, each of the bone beam arms is detachably connected to both ends of the connecting portion, or each of the bone beam arms forms a one-piece structure with the end of the corresponding connecting portion.

[0012] In one embodiment, the first opening is detachably connected to the connecting portion, one of the first opening and the connecting portion is provided with a locking portion, and the other of the first opening and the connecting portion is provided with a fastening portion, the locking portion and the fastening portion being able to cooperate with each other.

[0013] In one embodiment, the headband connection assembly is configured to rotate circumferentially relative to the padding assembly.

[0014] In one embodiment, the headband connection assembly is configured to swing axially relative to the first opening.

[0015] In one embodiment, a tube assembly is also included, which is connected and in flow communication with a second opening on the gasket assembly located below the first opening.

[0016] In one embodiment, the tubing assembly includes a tubing connector and a tubing body connected to the tubing connector. The tubing connector is detachably or non-detachably connected to the second opening, and one end of the tubing body away from the tubing connector is used to connect to the airway of a ventilator.

[0017] In one embodiment, the gasket assembly includes a sealing portion and a base connected to the sealing portion, wherein the first opening and the second opening are respectively disposed on the base.

[0018] Compared with the prior art, the advantages of this utility model are that, since the first opening is located at the user's mouth and / or nose, the exhaust hole on the connecting part corresponding to the first opening is closer to the user's mouth and nose, thus the exhaust path for exhaust through the first opening and the exhaust hole is shorter. Therefore, it can reduce the dead space of the breathing mask, accelerate the exhalation rate of the user's exhaled gas, reduce the carbon dioxide residue in the chamber, and avoid the problem of relatively high carbon dioxide content in the breathing mask.

[0019] Furthermore, the breathing mask of this utility model does not have a frame. Instead, the padding assembly is connected to the headband connecting assembly, and the headband connecting assembly is connected to the connecting part covering the first opening on the padding assembly, thereby fixing the padding assembly to the user's face. This reduces the number of structural components involved in the connection, thereby reducing the risk of air leakage from the connection gap.

[0020] In addition, when users temporarily leave the positive pressure ventilation device, they only need to remove the padding, without the cumbersome operation of separating the headband from the padding or frame, making the operation simpler and correspondingly more convenient to wear when using it again. Attached Figure Description

[0021] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0022] Figure 1a This is a three-dimensional structural diagram of the breathing mask in Embodiment 1 of this utility model;

[0023] Figure 1b yes Figure 1a The diagram shows the installation of the liner assembly and connectors of the breathing mask when viewed from the inside.

[0024] Figure 2 This is an exploded view of the breathing mask in Embodiment 1 of this utility model;

[0025] Figure 3a yes Figure 2 The diagram shows the connection between the padding assembly and the headband connection assembly.

[0026] Figure 3b yes Figure 3a The diagram shows the connection between the padding assembly and the headband connection assembly when viewed from the inside.

[0027] Figure 4 yes Figure 2 A schematic diagram showing the connection between the gasket assembly and the tube assembly;

[0028] Figure 5a This is a three-dimensional structural diagram of the breathing mask in Embodiment 2 of this utility model;

[0029] Figure 5b yes Figure 5a The diagram shows the installation of the liner assembly and connectors of the breathing mask when viewed from the inside.

[0030] Figure 6 This is an exploded view of the breathing mask in Embodiment 2 of this utility model;

[0031] Figure 7a yes Figure 6 The diagram shows the connection between the padding assembly and the headband connection assembly.

[0032] Figure 7b yes Figure 7a The diagram shows the connection of the padding assembly and headband connection assembly as viewed from the inside.

[0033] Figure label:

[0034] 10. Padding assembly; 20. Headband connection assembly; 30. Tube assembly;

[0035] 11. Sealing part; 12. Base; 121. First opening; 122. Second opening;

[0036] 1211, Slot; 1212, Snap-on Platform; 21, Connecting Part; 22, Bone Beam Arm; 23, Extension Arm;

[0037] 211. Protrusion; 212. Vent hole; 213. Notch;

[0038] 2111, Buckle;

[0039] 231. Headband connection hole; 2311. First headband connection hole; 2312. Second headband connection hole;

[0040] 31. Pipe connection; 32. Pipe body. Detailed Implementation

[0041] The present invention will be further described below with reference to the accompanying drawings.

[0042] Example 1

[0043] like Figures 1a-4 As shown, this utility model provides a breathing mask, including a pad assembly 10, a headband connecting assembly 20, and a tube assembly 30. One side of the pad assembly 10 is for contacting the user's face, and the other side of the pad assembly 10 is for connecting to the headband connecting assembly 20. The headband connecting assembly 20 is used to fix the pad assembly 10 to the user's face. The tube assembly 30 is used to fluidly communicate with the pad assembly 10, thereby introducing ventilation gas into the pad assembly 10 for the user to breathe.

[0044] like Figure 2 and Figure 3aAs shown, the padding assembly 10 has a first opening 121 on the side near the headband connecting assembly 20. The first opening 121 corresponds to at least one of the user's mouth and nose positions. A connecting part 21 is provided on the first opening 121 to cover the first opening 121. The headband connecting assembly 20 is connected to the connecting part 21 to fix the padding assembly 10 to the user's face.

[0045] The connecting part 21 is provided with one or more exhaust holes 212 that are in fluid communication with the first opening 121. Therefore, the air exhaled through the user's mouth and nose can be discharged from the first opening 121 to the exhaust hole 212 and then discharged from the exhaust hole 212 to the outside of the breathing mask.

[0046] The pad assembly 10 has a chamber in which ventilation gas enters and is supplied to the user for breathing through the tube assembly 30. The first opening 121 communicates with the chamber, and the air exhaled by the user passes through the chamber and is discharged outward through the first opening 121 and the exhaust port 212.

[0047] If the vent 212 is located far from the user's mouth and nose, such as in some prior art where the vent is located on the tube assembly 30 or on the pad assembly 10 at a position corresponding to the user's face, the exhaust path will be longer, which will slow down the rate at which the user exhales the gas, causing carbon dioxide residue in the chamber and making the user uncomfortable.

[0048] By positioning the first opening 121 at at least one of the user's mouth and / or nose, the exhaust port 212 on the connecting portion 21 at the position corresponding to the first opening 121 is closer to the user's mouth and nose. This results in a shorter exhaust path for exhaust through the first opening 121 and the exhaust port 212, thereby accelerating the rate of exhalation and reducing carbon dioxide residue in the chamber, thus avoiding the problem of relatively high carbon dioxide content in the breathing mask.

[0049] Furthermore, the structure of the exhaust port 212 can be a columnar hole or a conical hole (e.g., larger inside and smaller outside or larger outside and smaller inside).

[0050] like Figure 3a As shown, the number of exhaust holes 212 on the connecting part 21 can be multiple, and the multiple exhaust holes 212 are arranged on the connecting part 21 in a rectangular array, a circular array, or the like.

[0051] like Figure 2 and Figure 3aAs shown, in this embodiment 1, there is one first opening 121, which is located on the front side of the pad assembly 10. The number of connecting parts 21 corresponds one-to-one with the number of first openings 121, and they have a shape that is approximately the same as the first openings 121, and can be detachably connected to the first openings 121.

[0052] Specifically, a locking part is provided on one of the first opening 121 and the connecting part 21, and a fastening part is provided on the other of the first opening 121 and the connecting part 21. The locking part and the fastening part can cooperate with each other, so that the first opening 121 and the connecting part 21 can be connected to each other.

[0053] For example, please combine Figure 1b and Figure 3b The engaging portion includes a slot 1211 provided at the inner edge of the first opening 121. The number of slots 1211 can be one or more. When there are multiple slots 1211, the multiple slots 1211 are spaced apart along the circumferential edge of the first opening 121.

[0054] Correspondingly, the fastening part includes a latching protrusion 211 on the side of the connecting part 21 near the first opening 121. The latching protrusion 211 is a boss structure that protrudes from the inside of the connecting part 21 toward the first opening 121. The latching protrusion 211 is provided with latches 2111, the number of which corresponds one-to-one with the number of slots 1211, and the shape of the latches 2111 matches the shape of the slots 1211, for example, both having a trapezoidal or rectangular cross-section. When the connecting part 21 is connected to the first opening 121, the latching protrusion 211 on the connecting part 21 is inserted into the first opening 121, and the latches 2111 engage with the corresponding slots 1211 to fix the connecting part 21 onto the first opening 121.

[0055] Alternatively, the engaging part can be a buckle 2111 provided on the inner edge of the first opening 121, and the engaging part can be a slot 1211 on the connecting part 21. The buckle 2111 and the corresponding slot 1211 can engage with each other to fix the connecting part 21 on the first opening 121.

[0056] Furthermore, a sealing ring or other sealing component can be provided at the connection between the connecting part 21 and the first opening 121, so that the airflow exhaled by the user can be discharged from the exhaust port 212, and will not leak from the connection between the connecting part 21 and the first opening 121.

[0057] In one alternative embodiment, the headband connecting assembly 20 is configured to rotate circumferentially relative to the padding assembly 10, thereby adjusting the wearing position of the headband connecting assembly 20 to accommodate different individuals. For example, the headband connecting assembly 20 is rotatably connected to the padding assembly 10, allowing the headband connecting assembly 20 to rotate infinitely circumferentially relative to the padding assembly 10. Alternatively, the headband connecting assembly 20 can rotate in adjustable steps relative to the padding assembly 10, for example, by providing a cooperating rotating step between them, thereby achieving adjustable stepped rotation between them.

[0058] In an optional embodiment, the headband connection assembly 20 is configured to swing axially relative to the first opening 121. More specifically, the headband connection assembly 20 is able to swing about the axis of the first opening 121 at its connection with the padding assembly 10. It should be noted that this swinging method differs from the small-range swinging of the bone beam arm 22 or extension arm 23 with its extension direction as the swing axis, as described below. The headband connection assembly 20, through its rotatable connection with the padding assembly 10, can swing about the axis of the first opening 121 at its connection with the padding assembly 10, thereby adjusting the wearing position of the headband connection assembly 20 to accommodate different individuals. Figure 3a As shown, the headband connection assembly 20 includes bone beam arms 22, each bone beam arm 22 being connected to the end of the connection portion 21 and extending from the end of the connection portion 21 along the direction from the user's face to the ear.

[0059] More specifically, such as Figure 2 The connecting part 21 is provided with a bone beam arm 22 on each of its left and right sides, and the bone beam arms 22 on the left and right sides of the connecting part 21 are detachably connected to the left and right ends of the connecting part 21, respectively. For example, they can be connected by snap-fit ​​or plug-in. Alternatively, the bone beam arms 22 on the left and right sides of the connecting part 21 can form a one-piece structure with the left and right ends of the connecting part 21, that is, the connecting part 21 and its left and right bone beam arms 22 form a whole.

[0060] Furthermore, one or more headband connection holes 231 are provided on the ends of the bone beam arm 22 away from the connecting part 21.

[0061] Optionally, a headband connection hole 231 is provided at the end of the bone beam arm 22 on both sides of the connecting part 21. Each headband connection hole 231 can be connected to both ends of the side headband in the headband assembly that passes around the back of the user's head, thereby fixing the padding assembly 10 to the user's face.

[0062] Optionally, the ends of the bone beam arms 22 on both sides of the connecting portion 21 are respectively provided with two or more headband connection holes 231. Specifically, two or more extension arms 23 are provided on the ends of the bone beam arms 22 away from the connecting portion 21, and each headband connection hole 231 is respectively provided on the corresponding extension arm 23. For example Figure 3a As shown, each end of the bone beam arm 22 has two headband connection holes 231, namely a first headband connection hole 2311 and a second headband connection hole 2312. Two extension arms 23 are respectively provided at the two ends of the bone beam arm 22 away from the connecting part 21, thus forming a Y-shaped structure between the ends of the bone beam arm 22 away from the connecting part 21 and the two extension arms 23, i.e., the two extension arms 23 form a fork of the bone beam arm 22. Each extension arm 23 is provided with a headband connection hole 231, so that the headband connection holes 231 on each extension arm 23 can be connected to the respective ends of the side headband in the headband assembly, thereby fixing the padding assembly 10 to the user's face.

[0063] like Figure 3a As shown, the first headband connecting hole 2311 can be in the form of an elongated hole, and the second headband connecting hole 2312 can be in the form of a hole with a special shape, such as a petal-like structure with multiple semicircles or arc-shaped petals.

[0064] In addition, such as Figure 1a and Figure 4 As shown, the respirator of this invention also includes a tube assembly 30, which is connected and in communication with a second opening 122 on the padding assembly 10 located below the first opening 121. In this invention, the tube assembly 30 is directly connected to the padding assembly 10, instead of using a frame as an intermediate bridge as in existing respirators. This reduces the assembly connection process between the tube assembly or padding assembly and the frame, thus reducing the risk of air leakage at the assembly location under the same manufacturing precision conditions, thereby improving the overall sealing performance of the respirator.

[0065] Specifically, such as Figure 4 As shown, the pipe assembly 30 includes a pipe connection part 31 and a pipe body 32 connected to the pipe connection part 31. The pipe connection part 31 is detachably connected to the second opening 122 or non-detachably connected. For example, the pipe connection part 31 and the second opening 122 can be detachably connected by means of threaded connection, snap-fit ​​connection, etc., or non-detachably connected by means of welding, bonding, etc.

[0066] The end of the tube body 32 away from the tube connection part 31 is used to connect to the airway of the ventilator, and the airway of the ventilator can provide ventilation gas to the tube body 32.

[0067] like Figure 2 and Figure 3aAs shown, the padding assembly 10 includes a sealing portion 11 and a base 12 integrally formed with the sealing portion 11. The sealing portion 11 is for contact with the user's face, and the base 12 is for connection with the headband connecting assembly 20. A first opening 121 and a second opening 122 are respectively provided on the base 12, as shown. Figure 4 As shown, the second opening 122 is located at the bottom end of the base 12 to facilitate connection with the tube connection part 31. The first opening 121 is located on the front side of the base 12 to facilitate connection with the headband connection assembly 20.

[0068] The sealing part 11 is made of a relatively soft and elastic material such as silicone or sponge, which forms a seal around the user's mouth and / or nose during use. The base 12 is made of a rigid or semi-rigid material and can be molded into an integral component with the sealing part 11 to provide support and prevent the sealing part 11 from collapsing when the user exhales.

[0069] Example 2

[0070] like Figures 5a-7b As shown, the difference between this embodiment 2 and the above embodiment 1 is that the number of first openings 121 in this embodiment 2 is multiple.

[0071] Preferably, such as Figure 5a and Figure 6 As shown, there are two first openings 121. The two first openings 121 are respectively located on both sides of the central axis of the pad assembly 10, that is, the two first openings 121 correspond to the positions of the user's two nostrils. Therefore, the exhaust port 212 at the position corresponding to the first opening 121 is closer to the user's mouth and nose, thereby shortening the exhaust path through the first opening 121 and the exhaust port 212. This can accelerate the exhalation rate of the user's exhaled gas, reduce the carbon dioxide residue in the chamber, and avoid the problem of relatively high carbon dioxide content in the breathing mask.

[0072] The structure and arrangement of the exhaust port 212 can be the same as or similar to those described in Embodiment 1.

[0073] like Figure 6 and Figure 7a As shown, similar to Embodiment 1, in this Embodiment 2, the number of connecting parts 21 corresponds one-to-one with the number of first openings 121. For example, the number of connecting parts 21 is also two, and the connecting parts 21 have a shape that is approximately the same as the first openings 121, and can be detachably connected to the first openings 121.

[0074] Specifically, a locking part is provided on one of the first opening 121 and the connecting part 21, and a fastening part is provided on the other of the first opening 121 and the connecting part 21. The locking part and the fastening part can cooperate with each other, so that the first opening 121 and the connecting part 21 can be connected to each other.

[0075] For example, please refer to Figure 5b and Figure 7b The engaging part includes a slot 1211 provided on the inner edge of the first opening 121. The slot 1211 and the first opening 121 form a stepped structure. Therefore, the step formed at the connection between the slot 1211 and the first opening 121 is a snap-fit ​​platform 1212.

[0076] Correspondingly, the fastening part includes a plurality of latching protrusions 211 disposed on the side of the connecting part 21 near the first opening. Each latching protrusion 211 is a boss structure protruding from the inside of the connecting part 21 toward the first opening 121. Each latching protrusion 2111 has an outwardly protruding buckle 2111 disposed on the outer side (i.e., the side near the inner wall of the first opening 121). When the connecting part 21 is connected to the first opening 121, the latching protrusions 211 on the connecting part 21 are inserted into the first opening 121, and the buckles 2111 on the latching protrusions 211 engage with the buckling platform 1212, thereby fixing the connecting part 21 onto the first opening 121.

[0077] Furthermore, multiple protrusions 211 are spaced apart circumferentially along the first opening 121, thus forming a notch 213 between adjacent protrusions 211. This allows the protrusions 211 to deform when they are engaged with the slots 1211, making it easier to insert them into the slots 1211. After being inserted into the slots 1211, they return to their undeformed state and can then engage with the slots 1211.

[0078] Alternatively, the engaging part can be the protrusion 211 on the inner edge of the first opening 121 and the buckle 2111 thereon. The engaging part is the buckle platform 1212 on the connecting part 21. The buckle 2111 and the buckle platform 1212 can engage with each other to fix the connecting part 21 on the first opening 121.

[0079] Furthermore, a sealing ring or other sealing component can be provided at the connection between the connecting part 21 and the first opening 121, so that the airflow exhaled by the user can be discharged from the exhaust port 212, and will not leak from the connection between the connecting part 21 and the first opening 121.

[0080] like Figure 6 and Figure 7aAs shown, the difference between the bone beam arm 22 in this embodiment 2 and the bone beam arm 22 in embodiment 1 is that, in embodiment 1, the bone beam arms 22 on both sides of the connecting portion 21 are connected to the same connecting portion 21, while in this embodiment 2, each connecting portion 21 corresponds to one bone beam arm 22, that is, each bone beam arm 22 is used to connect to its corresponding connecting portion 21. Furthermore, in this embodiment 2, each bone beam arm 22 and its corresponding connecting portion 21 can form a one-piece structure, that is, each bone beam arm 22 and its corresponding connecting portion 21 form a whole.

[0081] In an optional implementation, similar to Embodiment 1 above, the headband connecting assembly 20 can also rotate circumferentially relative to the padding assembly 10, thereby adjusting the wearing position of the headband connecting assembly 20 to suit different users. For example, the headband connecting assembly 20 is rotatably connected to the padding assembly 10, allowing the headband connecting assembly 20 to rotate infinitely circumferentially relative to the padding assembly 10. Alternatively, the headband connecting assembly 20 can rotate in adjustable steps relative to the padding assembly 10, for example, by providing a cooperating rotating step between them, thereby achieving adjustable stepped rotation between them.

[0082] In an alternative embodiment, similar to Embodiment 1 described above, the headband connecting assembly 20 is configured to swing relative to the axial direction of its corresponding first opening 121. More specifically, the headband connecting assembly 20 can swing about the axis of the corresponding first opening 121 at its connection with the padding assembly 10. It should be noted that this swinging method differs from the small-range swinging of the bone beam arm 22 or the extension arm 23 with its extension direction as the swing axis. The headband connecting assembly 20, through its rotatable connection with the padding assembly 10, can swing about the axis of the corresponding first opening 121 at its connection with the padding assembly 10, thereby adjusting the wearing position of the headband connecting assembly 20 to suit different individuals.

[0083] The way the headband connection hole 231 is set in the bone beam arm 22 can be the same as or similar to the way it is set in Embodiment 1 above.

[0084] Furthermore, the pipe assembly 30 in this embodiment 2 can also adopt the same or similar configuration as that in embodiment 1.

[0085] The padding assembly 10 in this embodiment 2 can also be similar to that in embodiment 1, that is, it includes a sealing part 11 and a base 12 integrally formed with the sealing part 11. The sealing part 11 is used to contact the user's face, and the base 12 is used to connect with the headband connecting assembly 20. The first opening 121 and the second opening 122 are respectively provided on the base 12. Figure 7aAs shown, the second opening 122 is located at the bottom end of the base 12 to facilitate connection with the tube connection part 31. Both first openings 121 are located on the front side of the base 12 to facilitate connection with the headband connection assembly 20.

[0086] The materials and connection methods of the sealing part 11 and the base 12 can be the same as or similar to those of Embodiment 1 above, and will not be described again in this utility model.

[0087] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto 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, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A breathing mask, characterized in that, The device includes a padding assembly and a headband connecting assembly. One side of the padding assembly is for contact with the user's face, and the other side of the padding assembly is for connection to the headband connecting assembly. The padding assembly has a first opening on the side near the headband connecting assembly. The first opening corresponds to at least one of the user's mouth and nose. The first opening has a connecting portion that can cover the first opening. The headband connecting assembly is connected to the connecting portion, thereby fixing the padding assembly to the user's face. The connecting portion is provided with one or more vent holes that are in fluid communication with the first opening.

2. The breathing mask according to claim 1, characterized in that, The number of the first openings is one or more, and the number of the connecting parts corresponds one-to-one with the number of the first openings.

3. The breathing mask according to claim 1 or 2, characterized in that, The headband connection assembly is a one-piece structure.

4. The breathing mask according to claim 1 or 2, characterized in that, The headband connection assembly includes bone arms, each bone arm being connected to an end of the connector and extending from the end of the connector along the user's face to the ear; or Each of the aforementioned bone beam arms extends from one side of the corresponding connector along the direction from the user's face to the ear.

5. The breathing mask according to claim 4, characterized in that, One or more headband connection holes are provided at the ends of the bone beam arm away from the connecting part.

6. The breathing mask according to claim 4, characterized in that, The end of the bone beam arm away from the connecting part is provided with a plurality of extension arms, and each extension arm is provided with a headband connection hole.

7. The breathing mask according to claim 4, characterized in that, Each of the aforementioned bone beam arms is detachably connected to both ends of the connecting portion, or each of the aforementioned bone beam arms forms a one-piece structure with the end of the corresponding connecting portion.

8. The breathing mask according to claim 1 or 2, characterized in that, The first opening is detachably connected to the connecting part. One of the first opening and the connecting part is provided with a locking part, and the other of the first opening and the connecting part is provided with a fastening part. The locking part and the fastening part can cooperate with each other.

9. The breathing mask according to claim 1 or 2, characterized in that, The headband connection assembly is configured to rotate circumferentially relative to the padding assembly.

10. The breathing mask according to claim 1 or 2, characterized in that, The headband connection assembly is configured to swing axially relative to the first opening.

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