CN114887181A - Noninvasive breathing mask - Google Patents

Abstract

The invention relates to a noninvasive breathing mask, comprising: the mask comprises a mask body, wherein the front end of the mask body is provided with an exhaust hole which is in a conical structure; wherein, the big footpath hole end in exhaust hole is located the inboard of face guard body, and the path hole end in exhaust hole is located the outside of face guard body. When the noninvasive breathing mask with the scheme is used, the noninvasive breathing mask is worn on the face of a patient, and when the patient breathes and exhales, airflow reaches the exhaust hole of the mask body and is exhausted to the outside of the noninvasive breathing mask from the exhaust hole. Because the exhaust hole adopts toper structural design, and its major diameter hole end is located the inboard of face guard body, and minor diameter hole end is located the outside of face guard body, and air current accessible major diameter hole end flows in the exhaust hole more easily and smoothly and quick discharge from minor diameter hole end under the inclined plane pore wall water conservancy diversion effect to just can effectively weaken exhaust noise, improve and create no respiratory mask and use silence nature, avoid influencing patient sleep quality, and then be favorable to the rehabilitation of patient's state of an illness.

Description

Noninvasive breathing mask

Technical Field

The invention relates to the technical field of medical instruments, in particular to a noninvasive breathing mask.

Background

At present, noninvasive respiratory therapy is widely applied to the treatment process of chronic obstructive pulmonary disease with respiratory failure, acute heart failure, sleep apnea syndrome and other diseases, and is particularly applied to patients with chronic obstructive pulmonary respiratory failure more and more. Generally, noninvasive respiratory therapy needs to be developed by using a breathing apparatus, and a breathing mask is an important component of the breathing apparatus directly matched with a patient.

The breathing mask is generally provided with exhaust holes for exhausting gas exhausted by a patient during breathing, the problem of overlarge exhaust noise can be caused due to the fact that the existing exhaust holes are unreasonable in structural design and arrangement, and the overlarge exhaust noise can seriously affect the sleep quality and is not beneficial to the rehabilitation of the patient when the patient wears the breathing mask for a long time, particularly sleeps at night.

Disclosure of Invention

Based on this, it is necessary to provide a noninvasive respirator, which aims to solve the problems that the excessive exhaust noise in the prior art affects the sleep quality of the patient and is not beneficial to the recovery treatment of the patient.

The application provides a noninvasive breathing mask, it includes:

the mask comprises a mask body, wherein the front end of the mask body is provided with an exhaust hole which is in a conical structure; the large-diameter hole end of the exhaust hole is located on the inner side of the mask body, and the small-diameter hole end of the exhaust hole is located on the outer side of the mask body.

When the noninvasive breathing mask with the scheme is used, the noninvasive breathing mask is worn on the face of a patient, and when the patient breathes and exhales, airflow reaches the exhaust hole of the mask body and is exhausted to the outside of the noninvasive breathing mask from the exhaust hole. Because the exhaust hole adopts toper structural design, and its major diameter hole end is located the inboard of face guard body, and minor diameter hole end is located the outside of face guard body, and air current accessible major diameter hole end flows in the exhaust hole more easily and smoothly and quick discharge from minor diameter hole end under the inclined plane pore wall water conservancy diversion effect to just can effectively weaken exhaust noise, improve and create no respiratory mask and use silence nature, avoid influencing patient sleep quality, and then be favorable to the rehabilitation of patient's state of an illness.

The technical solution of the present application is further described below:

in one embodiment, the exhaust holes are arranged in a plurality, and the exhaust holes are arranged at intervals in an annular structure.

In one embodiment, the mask body is provided with an exhaust interface, the noninvasive breathing mask further comprises an elbow pipe and a connecting seat, the connecting seat is rotatably butted with the exhaust interface and detachably connected with the mask body, and the elbow pipe is arranged on the connecting seat.

In one embodiment, one of the connecting seat and the mask body is provided with a button, the other of the connecting seat and the mask body is provided with a button position, and the button is connected with a separable buckle of the button position.

In one embodiment, the connecting seat is provided with a spherical hole, the bent pipe is provided with a spherical head, and the spherical head is rotatably inserted into the spherical hole; or

The elbow is provided with a spherical hole, the connecting seat is provided with a spherical head, and the spherical head is rotatably inserted into the spherical hole.

In one embodiment, the noninvasive breathing mask further comprises an anti-asphyxia valve, the elbow comprises an elbow joint, the elbow joint is used for being connected with a gas pipeline, a gas outlet is formed in the pipe wall of the elbow, and the anti-asphyxia valve is arranged in the elbow and can be matched with one of the elbow joint and the gas outlet in an opening and closing mode.

In one embodiment, the anti-asphyxia valve includes a valve seat and a valve having a reduced thickness portion, the valve being rotatably disposed on the valve seat via the reduced thickness portion and being capable of selectively engaging and disengaging the elbow fitting and the air outlet.

In one embodiment, the anti-asphyxia valve further comprises a rotating assembly, and the reduced thickness portion is rotatably connected with the valve seat through the rotating assembly.

In one embodiment, the elbow is provided with a first step portion, the elbow joint is provided with a second step portion, and the first step portion is detachably connected with the second step portion in a clamping mode.

In one embodiment, the anti-asphyxia valve further comprises a first sealing member and a second sealing member, the first sealing member and the second sealing member being disposed on opposite sides of the valve, respectively, and the first sealing member being capable of sealingly engaging the elbow fitting and the second sealing member being capable of sealingly engaging the outlet.

In one embodiment, the noninvasive breathing mask further comprises a silica gel pad, and the silica gel pad is arranged at the periphery of the mask body.

In one embodiment, the left side and the right side of the silica gel pad are respectively provided with a fitting part, and the fitting parts are used for tightly fitting the face of a wearer.

In one embodiment, the thickness of the fitting part is gradually decreased from one end of the silica gel pad connected with the mask body to the other end far away from the mask body.

In one embodiment, the silica gel pad is further provided with a buffer structure, and the buffer structure is used for being aligned with the position of the nose bridge of the wearer.

In one embodiment, the noninvasive breathing mask further comprises a support and a headband, the mask body is arranged on the support, and the support is connected with the headband.

In one embodiment, a hollow hole is formed in the position, close to the middle, of the support, and the hollow hole is used for being aligned with the exhaust interface to avoid the exhaust interface.

In one embodiment, the bracket includes a main body, a first side member and a second side member, and the first side member and the second side member are respectively disposed at left and right sides of the main body.

In one embodiment, the bracket further comprises a first connecting buckle, a second connecting buckle, a third connecting buckle and a fourth connecting buckle, the first connecting buckle is arranged at the tail end of the first side beam, the second connecting buckle is arranged at the tail end of the second side beam, the third connecting buckle and the fourth connecting buckle are respectively arranged at the left side and the right side of the bottom of the bracket, and the headband is connected with the first connecting buckle, the second connecting buckle, the third connecting buckle and the fourth connecting buckle and is matched with the first connecting buckle, the second connecting buckle, the third connecting buckle and the fourth connecting buckle to form a headband fixing structure.

In one embodiment, the third connecting buckle and the fourth connecting buckle are both configured as a first magnetic buckle, the headband is provided with a second magnetic buckle, and the first magnetic buckle and the second magnetic buckle are detachably connected in a magnetic attraction manner.

In one embodiment, the first magnetic buckle and the second magnetic buckle each comprise a mounting groove and a magnet, and the magnet is arranged in the mounting groove.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a noninvasive breathing mask according to an embodiment of the present application;

FIG. 2 is a partial exploded view of FIG. 1;

fig. 3 is a cross-sectional view at a first perspective of the assembled mask body and silicone cushion;

FIG. 4 is a cross-sectional view at a second perspective of the assembled mask body and silicone cushion;

FIG. 5 is a schematic structural view of a stent of the present application;

FIG. 6 is a schematic view of the structure of the first magnetic buckle and the second magnetic buckle;

FIG. 7 is an assembly structure view of the pinch button, the connecting seat and the mask body in the present application;

FIG. 8 is an assembled cross-sectional view of the elbow and connecting base of the present application;

FIG. 9 is a sectional structural view of the anti-asphyxia valve;

fig. 10 is a schematic structural view of the valve.

Description of reference numerals:

100. a noninvasive breathing mask; 10. a mask body; 11. an exhaust hole; 12. an exhaust interface; 20. bending the pipe; 22. a spherical head; 23. a pipe bending joint; 24. an air outlet; 30. a connecting seat; 31. a spherical hole; 40. kneading and buckling; 50. an anti-asphyxia valve; 51. a valve seat; 52. a valve; 521. a reduced thickness portion; 60. a silica gel pad; 61. a bonding section; 62. a buffer structure; 70. a support; 71. hollowing out holes; 72. a first edge beam; 73. a second edge beam; 74. a first connecting buckle; 75. a second connecting buckle; 76. a third connecting buckle; 77. a fourth connecting buckle; 80. a second magnetic buckle; 81. mounting grooves; 82. and a magnet.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1, a noninvasive breathing mask 100 according to an embodiment of the present application is shown, which includes: the mask comprises a mask body 10, wherein the front end of the mask body 10 is provided with an exhaust hole 11, and the exhaust hole 11 is formed into a conical structure; the large-diameter hole end of the exhaust hole 11 is located on the inner side of the mask body 10, and the small-diameter hole end of the exhaust hole 11 is located on the outer side of the mask body 10.

In summary, the implementation of the technical solution of the present embodiment has the following beneficial effects: the noninvasive breathing mask 100 of the above-mentioned scheme is worn on the face of a patient during use, and when the patient breathes and exhales, the airflow reaches the exhaust hole 11 of the mask body 10 and is exhausted from the exhaust hole 11 to the outside of the noninvasive breathing mask 100. Because exhaust hole 11 adopts the design of toper structure, and its major diameter hole end is located the inboard of face guard body 10, minor diameter hole end is located the outside of face guard body 10, airflow accessible major diameter hole end flows in exhaust hole 11 more easily and smoothly just quick discharge from minor diameter hole end under the effect of inclined plane pore wall water conservancy diversion, thereby just can effectively weaken exhaust noise, improve and create no breathing mask 100 and use secret nature, avoid influencing patient sleep quality, and then be favorable to the rehabilitation of the patient's state of an illness.

On the basis of the above embodiment, the exhaust holes 11 are provided in a plurality, and the exhaust holes 11 are arranged at intervals in an annular structure. Set up a plurality of exhaust holes 11 simultaneously, increased exhaust area to can be more fast and smooth and easy discharge the air of patient's exhalation outside the face guard, avoid the air to come too late to discharge and produce the noise. It should be noted that the size, the spacing distance, and other parameters of each exhaust hole 11 may be the same or different, and may be specifically selected according to actual needs.

In some embodiments, the mask body 10 is provided with an exhaust port 12, the noninvasive breathing mask 100 further comprises an elbow 20, one end of the elbow 20 is connected to the exhaust port 12, and the elbow 20 is provided with a noise reduction hole. The elbow 20 is used for realizing the communication between the mask body 10 and an external oxygen therapy auxiliary respirator, so that oxygen is delivered to the mask body 10 through the elbow 20 during treatment. However, when the patient exhales, the noise reduction holes formed in the elbow 20 can further reduce noise, and cooperate with the air outlet holes 11 of the mask body 10 to improve the silent capability of the noninvasive breathing mask 100.

Specifically, in the above embodiment, the noise reduction hole has the first and second opposing apertures, the first aperture having a larger aperture than the second aperture, and the first aperture is located on the inner tube wall side of the elbow 20, and the second aperture is located on the outer tube wall side of the elbow 20. The air current flows into the noise reduction hole more easily through the first hole opening and is discharged smoothly and quickly from the second hole opening under the flow guiding effect of the inclined plane hole wall, so that the exhaust noise can be effectively weakened.

Further, the first hole opening is used for facing the air flow, and a flow guide structure is formed at the hole edge of the first hole opening. The first orifice faces the airflow exhaled by the patient, and the hole edge of the first orifice is provided with the flow guide structure, so that the resistance of the hole wall when the airflow enters and flows through the noise reduction hole can be reduced, and the purpose of reducing noise is achieved.

Alternatively, the flow guiding structure may be any one of a chamfer, a fillet, and the like.

More closely, it sets up to fall the hole of making an uproar to fall to be a plurality of, it is a plurality of fall the hole of making an uproar and be regular structure or irregularly the structure arranges. For example, the hole of making an uproar falls in this embodiment and is the setting of multirow array structure, not only pleasing to the eye, has increased exhaust area moreover, satisfies large-traffic exhaust requirement and reduces the noise production volume.

In still other embodiments, the noninvasive breathing mask 100 further comprises a connecting seat 30, the connecting seat 30 is rotatably connected to the exhaust interface 12 and detachably connected to the mask body 10, and the elbow 20 is disposed on the connecting seat 30. In the prior art, the elbow 20 is more fixedly connected with the mask body 10 and is not detachable, and this mounting manner may cause drag on the mask body 10 and the head of the patient during subsequent adjustment of the breathing circuit, thereby causing discomfort in wearing. In this embodiment, the elbow 20 is mounted on the connecting seat 30, so that the breathing pipeline of the connecting seat 30 and the mask body 10 can be adjusted in a separated state, and then the connecting seat 30 is assembled with the mask, thereby solving the above problems.

In addition, because the connecting seat 30 is rotatably installed with the exhaust port 12 of the mask body 10, the connecting seat can be rotated clockwise or counterclockwise by 360 degrees, which is convenient for users to adjust the angle during installation.

On the basis of the above embodiment, one of the connecting seat 30 and the mask body 10 is provided with a button 40, the other of the connecting seat 30 and the mask body 10 is provided with a button position, and the button 40 is connected with the button position in a separable buckling manner. The adoption is held between fingers and is detained 40 and detain a position buckle and be connected, makes things convenient for connecting seat 30 and face guard body 10 installation or split, is convenient for carry out regularly cleanness to parts such as return bend 20, face guard body 10.

Further, the connecting seat 30 is provided with a spherical hole 31, the elbow 20 is provided with a spherical head 22, and the spherical head 22 is rotatably inserted into the spherical hole 31. Or the elbow 20 is provided with a spherical hole 31, the connecting seat 30 is provided with a spherical head 22, and the spherical head 22 is rotatably inserted into the spherical hole 31. Therefore, the elbow 20 also has the capability of universal (e.g. 25 °) rotation relative to the connecting seat 30, further improving the angle adjustability and meeting the use requirements of different patients.

In addition, on the basis of any of the above embodiments, the noninvasive breathing mask 100 further includes an anti-asphyxia valve 50, the elbow 20 includes an elbow joint 23, the elbow joint 23 is used for being connected with a gas pipeline, a gas outlet 24 is formed on a pipe wall of the elbow 20, and the anti-asphyxia valve 50 is disposed in the elbow 20 and can be in open-close fit with one of the elbow joint 23 and the gas outlet 24. When the ventilator delivers an air flow to the mask for patient treatment and assisted breathing, the anti-asphyxia valve 50 opens the elbow connector 23 under the push of the air flow, and simultaneously closes the air outlet 24 to disconnect from the external environment, so that the patient can inhale the air delivered by the ventilator normally. When the breathing machine fails and cannot deliver gas to the patient wearing the mask body 10, the anti-asphyxia valve 50 opens the gas outlet 24 and closes the elbow joint 23 while communicating with the external environment, so that the patient can breathe normally, and asphyxia is prevented.

In some embodiments, the anti-asphyxia valve 50 comprises a valve seat 51 and a valve 52, wherein the valve 52 has a reduced thickness portion 521, and the valve 52 is rotatably disposed on the valve seat 51 via the reduced thickness portion 521 and can be in an open-close engagement with the elbow 23 and the air outlet 24. Since the thickness of the reduced thickness portion 521 is smaller than the thickness of the main body of the valve 52, bending deformation is more likely to occur, and when the valve 52 is connected to the valve seat 51 through the reduced thickness portion 521, the valve 52 is more likely to be pushed open by the airflow of the set flow output by the ventilator.

Further, the anti-asphyxia valve 50 further includes a rotation member, and the reduced thickness portion 521 is rotatably connected to the valve seat 51 through the rotation member. The rotational assembly provides rotational freedom to the valve 52, thereby ensuring that the valve 52 is more easily pushed open by the flow of gas, allowing the patient to inhale the ventilator delivered gas. Alternatively, the swivel assembly may be, but is not limited to, any of a hinge, a hinge assembly, and the like.

In some embodiments, the elbow 20 is provided with a first step portion, and the elbow joint 23 is provided with a second step portion, and the first step portion is detachably snap-connected with the second step portion. The first step part is connected with the second step part in a buckling manner, so that the connecting strength is high, and the mounting and dismounting are convenient. Of course, the above-mentioned snap connection manner in other embodiments may be replaced by any one of magnetic connection, screw connection, adhesion, and the like.

In addition, in order to improve the connection sealing performance between the valve 52 and the elbow joint 23 and between the valve 52 and the air outlet 24, the anti-asphyxia valve 50 further includes a first sealing member and a second sealing member, the first sealing member and the second sealing member are respectively disposed on two opposite side surfaces of the valve 52, the first sealing member is capable of being in sealing fit with the elbow joint 23, and the second sealing member is capable of being in sealing fit with the air outlet 24. For example, the first and second seals may be, but are not limited to, o-rings, sealing cotton, and the like.

In addition, on the basis of any of the above embodiments, the noninvasive breathing mask 100 further includes a silicone pad 60, and the silicone pad 60 is disposed at the periphery of the mask body 10. The texture of the silica gel pad 60 is soft, and the wearing comfort level can be improved by directly contacting with the human face, and particularly, the facial skin can be prevented from being crushed when the noninvasive breathing mask 100 is worn for a long time.

On the basis of the above embodiment, the left and right sides of the silicone pad 60 are respectively provided with the fitting parts 61, and the fitting parts 61 are used for tightly fitting the face of the wearer. The fitting part 61 is highly and closely fitted to the face of the wearer, which increases the sealing performance of the mask body 10 and contributes to the improvement of the therapeutic effect. For example, the fitting portion 61 has a concave structure that fits the shape of a convex contour of a human face.

Further, the thickness of the fitting part 61 gradually decreases from the end of the silica gel pad 60 connected with the mask body 10 to the other end away from the mask body 10. The design one can reduce the material, reduce cost to reach and subtract heavy effect, also can increase the laminating degree in addition, promote the leakproofness.

In some embodiments, the silicone cushion 60 is further provided with a buffer structure 62, and the buffer structure 62 is used for being aligned with the nasal bridge position of the wearer. When the user adjusts the tightness of wearing the mask body 10, the buffer structure 62 can reduce the pressing force, reduce the oppressive feeling at the bridge of the nose of the wearer, and improve the wearing comfort. It will be appreciated that the cushion structure 62 is a resiliently deformable configuration.

In addition, on the basis of any one of the above embodiments, the noninvasive breathing mask 100 further includes a bracket 70 and a headband, the mask body 10 is disposed on the bracket 70, and the bracket 70 is connected with the headband. The support 70 is used for supporting and fixing the mask body 10, and after the mask body 10 and the support 70 are connected into a whole, the head band is connected with the support 70, so that the patient can be hooped on the head to complete the wearing operation. Preferably, the headband is made of elastic band so as to be suitable for heads of different sizes of different patients, thereby expanding the application range of the noninvasive breathing mask 100.

In some embodiments, a hollow hole 71 is formed near the middle of the bracket 70, and the hollow hole 71 is used for aligning and avoiding with the exhaust port 12. The hollow holes 71 are designed and manufactured on the support 70, so that the weight reduction effect is good, the whole weight of the noninvasive breathing mask 100 is reduced, and the wearing burden of a patient is reduced.

In this embodiment, the bracket 70 includes a main body, a first side member 72 and a second side member 73, and the first side member 72 and the second side member 73 are respectively disposed on the left and right sides of the main body. The first and second side members 72 and 73 are disposed on the left and right sides of the main body portion so as not to obstruct the eye view of the patient.

In addition, the bracket 70 further includes a first connection buckle 74, a second connection buckle 75, a third connection buckle 76 and a fourth connection buckle 77, the first connection buckle 74 is disposed at the end of the first side beam 72, the second connection buckle 75 is disposed at the end of the second side beam 73, the third connection buckle 76 and the fourth connection buckle 77 are disposed at the left and right sides of the bottom of the bracket 70 respectively, and the headband is connected with the first connection buckle 74, the second connection buckle 75, the third connection buckle 76 and the fourth connection buckle 77 and is matched to form a headband fixing structure. That is, the bracket 70 can form a four-point connection structure with the headband, which can improve the wearing firmness, comfort and convenience, and can make the first side beam 72 and the second side beam 73 bypass the eyes of the patient, thereby avoiding the observation sight of the patient from being blocked.

Further, the third connecting buckle 76 and the fourth connecting buckle 77 are both configured as a first magnetic buckle, the headband has a second magnetic buckle 80, and the first magnetic buckle and the second magnetic buckle 80 are detachably connected by magnetic attraction. The headband is connected with the bracket 70 by magnetic buttons, so that the headband can be conveniently assembled and disassembled for a plurality of times, and the wearing difficulty is reduced.

In some embodiments, the first magnetic fastener and the second magnetic fastener 80 each include a mounting groove 81 and a magnet 82, and the magnet 82 is disposed in the mounting groove 81. Therefore, the first magnetic fastener and the second magnetic fastener 80 have simple structures and high connection reliability.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (20)

1. A noninvasive breathing mask characterized by comprising:

the mask comprises a mask body, wherein the front end of the mask body is provided with an exhaust hole which is in a conical structure; the large-diameter hole end of the exhaust hole is located on the inner side of the mask body, and the small-diameter hole end of the exhaust hole is located on the outer side of the mask body.

2. The noninvasive breathing mask of claim 1, wherein the exhaust holes are provided in a plurality, and the exhaust holes are arranged at intervals in a ring structure.

3. A noninvasive breathing mask according to claim 1, wherein the mask body is provided with an exhaust interface, the noninvasive breathing mask further comprises an elbow and a connecting seat, the connecting seat is rotatably connected to the exhaust interface in an abutting mode and detachably connected with the mask body, and the elbow is arranged on the connecting seat.

4. The noninvasive breathing mask of claim 3, wherein one of the connecting seat and the mask body is provided with a button, and the other of the connecting seat and the mask body is provided with a button, and the button is connected with a buckle which can be separated from the button.

5. The noninvasive breathing mask of claim 3, wherein the connecting seat is provided with a spherical hole, the elbow is provided with a spherical head, and the spherical head is rotatably inserted into the spherical hole; or

The elbow is provided with a spherical hole, the connecting seat is provided with a spherical head, and the spherical head is rotatably inserted into the spherical hole.

6. The noninvasive breathing mask according to claim 3, further comprising an anti-asphyxia valve, wherein the elbow comprises an elbow connector, the elbow connector is used for being connected with a gas pipeline, a gas outlet is arranged on a pipe wall of the elbow, and the anti-asphyxia valve is arranged in the elbow and can be matched with one of the elbow connector and the gas outlet in an opening and closing manner.

7. The non-invasive respiratory mask of claim 6, wherein the anti-asphyxia valve comprises a valve seat and a valve having a reduced thickness portion, the valve being rotatably disposed on the valve seat via the reduced thickness portion and being capable of selectively engaging and disengaging the elbow fitting and the air outlet.

8. The non-invasive respiratory mask of claim 7, wherein the anti-asphyxia valve further comprises a rotation assembly, wherein the reduced thickness portion is rotatably coupled to the valve seat via the rotation assembly.

9. The noninvasive respirator of claim 6, wherein the elbow is provided with a first step portion, the elbow joint is provided with a second step portion, and the first step portion is detachably connected with the second step portion in a snap-fit manner.

10. The non-invasive respiratory mask of claim 6, wherein the anti-asphyxia valve further comprises a first seal and a second seal, the first seal and the second seal being disposed on opposite sides of the valve, respectively, and the first seal being sealingly engageable with the elbow fitting and the second seal being sealingly engageable with the outlet port.

11. The noninvasive breathing mask of claim 1, further comprising a silicone pad disposed at a perimeter of the mask body.

12. The noninvasive breathing mask of claim 11, wherein the left and right sides of the silica gel pad are respectively provided with a fitting part for fitting the face of the wearer.

13. The noninvasive breathing mask of claim 12, wherein the thickness of the fitting part gradually decreases from the end of the silica gel pad connected with the mask body to the other end far away from the mask body.

14. The noninvasive breathing mask of claim 11, wherein the silicone cushion further comprises a buffering structure, and the buffering structure is aligned with the position of the bridge of the nose of the wearer.

15. The noninvasive breathing mask of claim 1, further comprising a bracket and a headband, wherein the mask body is disposed on the bracket, and the bracket is connected to the headband.

16. The noninvasive breathing mask of claim 15, wherein a hollowed-out hole is formed near the middle of the support, and the hollowed-out hole is used for avoiding alignment with the exhaust port.

17. The noninvasive respirator of claim 15, wherein the support frame comprises a main body portion, a first side beam and a second side beam, the first side beam and the second side beam being disposed on the left and right sides of the main body portion, respectively.

18. The noninvasive respirator of claim 17, wherein the frame further comprises a first connecting buckle, a second connecting buckle, a third connecting buckle and a fourth connecting buckle, the first connecting buckle is disposed at the end of the first side beam, the second connecting buckle is disposed at the end of the second side beam, the third connecting buckle and the fourth connecting buckle are disposed at the left and right sides of the bottom of the frame, respectively, and the headband is connected with the first connecting buckle, the second connecting buckle, the third connecting buckle and the fourth connecting buckle and cooperatively forms a headband fixing structure.

19. The noninvasive breathing mask of claim 18, wherein the third and fourth connecting buckles are each configured as a first magnetic buckle, and the headband has a second magnetic buckle, and the first and second magnetic buckles are detachably connected by magnetic attraction.

20. The noninvasive breathing mask of claim 19, wherein the first magnetic clasp and the second magnetic clasp each comprise a mounting slot and a magnet, the magnet disposed within the mounting slot.

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