Connecting device for breathing mask and breathing mask

Abstract

The utility model relates to a connecting device for a breathing mask and a breathing surface, and relates to the technical field of breathing masks. The connecting device for the breathing mask comprises the first connector and the second connector, force is applied to the first cantilever and / or the second cantilever of the second connector, so that the first connector and the second connector get close to each other, and then the second connector can be inserted into the first connector; therefore, the second connector can be easily pressed so as to be inserted into the first connector, on the contrary, when the first connector and the second connector are detached, the second connector can be easily pulled out of the first connector by pressing the first cantilever and / or the second cantilever, and the second connector can be conveniently inserted into the first connector by pressing the first cantilever and / or the second cantilever. Therefore, the first connector and the second connector can be mounted and dismounted more simply and conveniently, and the experience feeling of a patient can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of breathing masks, in particular to a connecting device for a breathing mask and a breathing mask. Background Art

[0002] When in use, the breathing mask is fixed to the patient's face by a headband, and the breathable gas output by the pressure support device can enter the cavity of the breathing mask through the ventilation line, and then enter the patient's body for respiratory therapy. The headband can fix the breathing mask on the patient's face on the one hand, and adjust the degree of fit with the patient's face on the other hand. The existing headband is connected to the connecting column on the breathing mask by a buckle through extrusion deformation. In order to ensure that it is not easy to fall off after connection, the buckle is generally set to require a large force to deform it and connect it to the connecting column. Therefore, it also requires a large force to disassemble it, which makes installation and disassembly not very convenient. Utility Model Content

[0003] The utility model provides a connection device for a breathing mask and a breathing mask, which are used to solve at least one of the above-mentioned technical problems.

[0004] According to a first aspect of the utility model, the utility model provides a connection device for a breathing mask, comprising:

[0005] A first connector for connecting to the breathing mask; and

[0006] a second connector which can be inserted into the first connector and detachably connected to the first connector, wherein the second connector comprises a first cantilever and a second cantilever, wherein the first cantilever and the second cantilever are elastically connected,

[0007] The first cantilever and / or the second cantilever is also provided with a snap-fit ​​structure, the first connector is also provided with a receiving structure matched with the snap-fit ​​structure, and the snap-fit ​​structure is detachably connected to the receiving structure.

[0008] In one embodiment, the first connector includes a receiving groove for receiving the first cantilever and the second cantilever, the extension direction of the receiving groove is parallel to the extension direction of the first cantilever or the second cantilever, and the first cantilever and the second cantilever can be inserted into the receiving groove when they are close to each other.

[0009] In one embodiment, a pressing portion is further provided on the first cantilever and / or the second cantilever, and the pressing portion is located outside the accommodating groove, and the pressing portion is configured to be acted upon by a force to bring the first cantilever and the second cantilever closer to each other.

[0010] In one embodiment, the pressing portion is configured as a pressing platform disposed on the shorter one of the first cantilever and the second cantilever, and a headband connecting hole is further disposed on the longer one of the first cantilever and the second cantilever.

[0011] In one embodiment, the accommodating structure includes a snap-fitting groove provided on one side or both sides of the accommodating groove and communicating with the accommodating groove, and the snap-fitting groove is used to snap-fit ​​with the buckle structure.

[0012] In one embodiment, the buckle structure is one or more of a long strip protrusion, a columnar protrusion, a cone-shaped protrusion and a wedge-shaped protrusion on the outer surface of the first cantilever and / or the second cantilever.

[0013] In one embodiment, the receiving groove is configured as a through groove penetrating the first connector, and the receiving structure includes an end portion of the through groove.

[0014] In one embodiment, the pressing portion is configured as a pressing protrusion disposed on surfaces of the first cantilever and the second cantilever away from each other;

[0015] The ends of the first cantilever and the second cantilever are respectively provided with a snap-fitting protrusion, the snap-fitting protrusion is used to snap-fit ​​with one end of the through slot, and the other end of the through slot is snap-fit ​​with the pressing protrusion, so that the through slot is located between the snap-fitting protrusion and the pressing protrusion.

[0016] In one embodiment, the second connector further includes a connecting lug having a headband connecting hole, wherein the connecting lug is disposed at a connecting portion of the first cantilever and the second cantilever and extends in a direction opposite to an extending direction of the first cantilever or the second cantilever.

[0017] In one embodiment the first cantilever and the second cantilever extend parallel to each other such that the second connector forms a U-shaped structure.

[0018] According to a second aspect of the utility model, the utility model provides a breathing mask, comprising a mask body and the above-mentioned connecting device for a breathing mask, wherein the first connector is arranged on the outer surface of the mask body or embedded in the mask body.

[0019] Compared with the prior art, the advantage of the present invention is that the second connector can be inserted into the first connector by applying force to the first cantilever and / or the second cantilever of the second connector so that the two are close to each other. Since the first cantilever and the second cantilever are elastically connected, they can be easily pressed to insert the second connector into the first connector. Conversely, when disassembling the connection between the first connector and the second connector, the second connector can be easily pulled out from the first connector by pressing the first cantilever and / or the second cantilever. This makes the installation and disassembly of the first connector and the second connector simpler and more convenient, thereby improving the patient's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0021] Figure 1A It is a schematic diagram of the three-dimensional structure of an existing breathing mask, in which the buckle and the connecting column are connected;

[0022] Figure 1B It is a schematic diagram of the three-dimensional structure of an existing breathing mask, in which the buckle and the connecting column are separated;

[0023] Figure 1C It is a schematic diagram of the separation state of a buckle and a connecting column of an existing breathing mask;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the connection device for the breathing mask in the embodiment of the utility model, wherein the first connector and the second connector are in a connected state;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the connection device for the breathing mask in the embodiment of the utility model, wherein the first connector and the second connector are in a separated state;

[0026] Figure 4 It is a schematic diagram of the first connector and the second connector in the separated state in the embodiment 1 of the utility model;

[0027] Figure 5 is a cross-sectional view of the first connector and the second connector in the connected state in the embodiment 1 of the present utility model;

[0028] Figure 6 is a schematic diagram of the three-dimensional structure of the second connector in Embodiment 2 of the present utility model;

[0029] Figure 7 is a cross-sectional view of the first connector and the second connector in the connected state in the embodiment 3 of the present utility model;

[0030] Figure 8It is a three-dimensional structural schematic diagram of the first connector and the second connector in the fourth embodiment of the utility model in a connected state;

[0031] Fig. 9 is a cross-sectional view of the first connector and the second connector in the connected state in the fourth embodiment of the present utility model;

[0032] Fig.10 It is an exploded view of a breathing mask in an embodiment of the present utility model.

[0033] Reference numerals:

[0034] 31. Mask body; 311. Frame; 312. Cushion; 313. Bend; 314. Buckle; 315. Connecting column;

[0035] 32. first connector; 321. receiving slot; 322. engaging slot;

[0036] 33. second connector; 330. arc-shaped connecting portion; 331. first cantilever; 332. second cantilever; 333. buckle structure; 334. pressing platform; 335. headband connecting hole; 336. pressing protrusion; 337. engaging protrusion; 338. connecting lug; 339. inclined portion;

[0037] 3361. First protrusion; 3362. Second protrusion. DETAILED DESCRIPTION

[0038] The utility model will be further described below in conjunction with the accompanying drawings.

[0039] The existing breathing mask comprises a mask body 31, which comprises a frame 311 and a cushion 312 and a bend 313 respectively arranged on both sides of the frame 311. Figure 1A and Figure 1B As shown in FIG. 1 , the existing component for connecting the respiratory mask to the headband includes a connecting post 315 provided on a frame 311 and a buckle 314 connected to the connecting post 315. The other end of the buckle 314 is connected to the headband (not shown), so that when the respiratory mask is worn, it can be fixed on the patient's face through the headband. An existing connection method of the buckle 314 and the connecting post 315 is as follows: Figure 1A and Figure 1B As shown, one end of the buckle 314 is set as a hook structure, which can hook the connecting column 315. The problem with this structure is that in order to ensure that the buckle 314 and the connecting column 315 can be firmly connected, the hook structure of the buckle 314 is generally set to require a large force to deform it and hook the connecting column 315. Therefore, when disassembling, it also requires a large force to disassemble, making installation and disassembly inconvenient, resulting in a poor patient experience. Another existing connection method between the buckle 314 and the connecting column 315 is as follows Figure 1C As shown, the buckle 314 is set in an inclined state so as to engage with the connecting column 315. The problem with this structure is that due to the close positioning of the connecting column 315 and the buckle 314, it is difficult to separate the two, and a large force is also required to separate the two, so the patient's experience is poor.

[0040] In order to solve the above-mentioned technical problems, the utility model provides a connection device for a breathing mask and a breathing mask, which are expected to achieve effortless and simple quick disassembly and assembly, thereby improving the patient's experience.

[0041] Example 1

[0042] According to the first aspect of the present invention, Figure 2 and Figure 3 As shown, the utility model provides a connection device for a breathing mask, comprising a first connector 32 and a second connector 33. The first connector 32 is used to connect to the breathing mask, and the second connector 33 can be inserted into the first connector 32 and detachably connected to the first connector 32.

[0043] Specifically, Figure 4 and Figure 5 As shown, the second connector 33 includes a first cantilever 331 and a second cantilever 332 , and the first cantilever 331 and the second cantilever 332 are elastically connected.

[0044] Preferably, the first cantilever 331 and the second cantilever 332 may extend parallel to each other, so that the second connector 33 forms a U-shaped structure.

[0045] Optionally, the extension directions of the first cantilever 331 and the second cantilever 332 may intersect at a certain point, so that the second connector 33 forms a V-shaped structure.

[0046] The second connector 33 is taken as an example to form a U-shaped structure. Figure 4 and Figure 5As shown, the first cantilever 331 and the second cantilever 332 are elastically connected by the arc-shaped connecting portion 330. It can be understood that there is a certain distance between the first cantilever 331 and the second cantilever 332, so it is convenient to apply force to the first cantilever 331 and / or the second cantilever 332, so that the two are close to each other, that is, the distance between the two is reduced; on the contrary, when the force is withdrawn, the two move away from each other under the action of their own elastic force and return to a state of being parallel to each other. Therefore, when it is necessary to connect the first connector 32 and the second connector 33, the first cantilever 331 and / or the second cantilever 332 can be easily pressed to easily insert the second connector 33 into the first connector 32. On the contrary, when the first connector 32 and the second connector 33 are disassembled, the second connector 33 can be easily pulled out from the first connector 32 by pressing the first cantilever 331 and / or the second cantilever 332, thereby making the installation and removal of the first connector 32 and the second connector 33 simpler and more convenient, thereby improving the patient's experience. Therefore, the U-shaped second connector 33 of the present invention can more conveniently apply force, thereby making installation and disassembly more convenient.

[0047] In addition, a buckle structure 333 is further provided on the first cantilever 331 and / or the second cantilever 332, and the buckle structure 333 is used to be connected with the first connector 32 by buckling. A receiving structure that matches the buckle structure 333 is also provided on the first connector 32, and the buckle structure 333 is detachably connected to the receiving structure. The receiving structure can be at least a part of the space or at least a part of the surface on the first connector 32 that matches the buckle structure 333.

[0048] When the second connector 33 is inserted into the first connector 32 , the snap structure 333 is snap-fitted with the receiving structure of the first connector 32 , so that the second connector 33 and the first connector 32 can be fixed to each other to ensure safety in use.

[0049] like Figure 4 and Figure 5 As shown, the first connector 32 includes a receiving groove 321 for receiving the first cantilever 331 and the second cantilever 332. The groove direction of the receiving groove 321 (as shown in FIG. Figure 4 The solid arrow in the middle is parallel to the extension direction of the first cantilever 331 (or the second cantilever 332) (as shown in FIG. Figure 4 The first cantilever 331 and the second cantilever 332 are opposite to the extending direction of the first cantilever 331 (or the second cantilever 332). When the first cantilever 331 and the second cantilever 332 are close to each other, they can be inserted into the receiving groove 321 along the slotting direction of the receiving groove 321.

[0050] In order to facilitate the application of force, a pressing portion is further provided on the first cantilever 331 and / or the second cantilever 332. The pressing portion is located outside the accommodating groove 321 and is configured to be acted upon by force to bring the first cantilever 331 and the second cantilever 332 closer to each other.

[0051] like Figure 4 As shown, the pressing portion is configured to be disposed on the shorter one of the first cantilever 331 and the second cantilever 332 (eg Figure 4 The pressing platform 334 on the first cantilever 331 shown in FIG. Figure 5 As shown, the pressing platform 334 is connected to the first cantilever 331 through an upwardly inclined inclined portion 339. The pressing platform 334 can, for example, extend in a direction parallel to the extending direction of the first cantilever 331. Therefore, it can be understood that the distance between the first cantilever 331 and the second cantilever 332 is smaller than the distance between the pressing platform 334 and the second cantilever 332. By arranging the pressing platform 334 outside the accommodating groove 321, it is convenient to apply force through the pressing platform 334 to bring the first cantilever 331 and the second cantilever 332 closer to each other, so as to remove the second connector 33 from the first connector 32.

[0052] In addition, the longer one of the first cantilever 331 and the second cantilever 332 (eg Figure 4 The second cantilever 332 is also provided with a headband connection hole 335. The headband connection hole 335 is provided on the portion of the second cantilever 332 located outside the receiving groove 321 and runs through the thickness direction of the second cantilever 332, so that the headband can pass through the headband connection hole 335, so that the headband can be connected to the breathing mask through the second connector 33.

[0053] like Figure 4 As shown, the receiving structure includes a snap-fitting groove 322 disposed on one or both sides of the receiving groove 321 and communicated with the receiving groove 321, and the snap-fitting groove 322 is used to snap-fit ​​with the snap-fitting structure 333. Through the mutual cooperation between the snap-fitting groove 322 and the snap-fitting structure 333, the second connector 33 can be locked in the receiving groove 321. Therefore, in this embodiment 1, the receiving structure is a groove-type structure, and therefore it can also be regarded as that the snap-fitting structure 333 is received in the receiving structure (snapping groove 322).

[0054] Specifically, in this embodiment 1, Figure 4As shown, the buckle structure 333 is a long strip-shaped protrusion on the outer surface of the first cantilever 331 (or the second cantilever 332). The buckle structure 333 can extend along the width direction of the outer surface of the first cantilever 331 and protrude outward along the thickness direction. The snap-fit ​​groove 322 can be correspondingly configured as a long strip-shaped groove that runs through the upper side wall portion of the receiving groove 321, so that when the first cantilever 331 and the second cantilever 332 are inserted into the receiving groove 321 and the buckle structure 333 is inserted into the snap-fit ​​groove 322 from the inner side of the receiving groove 321, it can indicate that the second connector 33 is connected to the first connector 32 in place.

[0055] The number of the buckle structures 333 can be one or more, and the present invention does not limit this. When the number of the buckle structures 333 is multiple, they can be arranged on the outer surface of the first cantilever 331 (or the second cantilever 332) in any suitable manner, such as spaced arrangement.

[0056] Example 2

[0057] like Figure 6 As shown, the difference between this embodiment 2 and the above-mentioned embodiment 1 is that the buckle structure 333 is a columnar protrusion on the outer surface of the first cantilever 331 (or the second cantilever 332). Therefore, correspondingly, the engaging groove 322 can be set as a columnar hole that penetrates the upper side wall of the receiving groove 321, so that when the first cantilever 331 and the second cantilever 332 are inserted into the receiving groove 321 and the buckle structure 333 is inserted into the engaging groove 322 from the inner side of the receiving groove 321, it can indicate that the second connector 33 is connected to the first connector 32 in place.

[0058] Figure 6 The dotted arrow shown in FIG. 3 is the extension direction of the first cantilever 331 (or the second cantilever 332 ).

[0059] The similarities between this embodiment 2 and the above-mentioned embodiment 1 will not be repeated again.

[0060] It is understandable that the buckle structure 333 is not limited to the shapes described in the above-mentioned embodiments 1 and 2, and it can also be configured in various other suitable shapes. For example, the buckle structure 333 can also be a conical protrusion or a wedge-shaped protrusion on the outer surface of the first cantilever 331 and / or the second cantilever 332, or a combination of various protrusions among a long strip protrusion, a columnar protrusion, a conical protrusion and a wedge-shaped protrusion. For various structural forms of the buckle structure 333, the engaging groove 322 can be correspondingly set to various structural forms that can be matched therewith (for example, it can be one or more of a long strip hole, a columnar hole, a conical hole and a wedge-shaped hole).

[0061] Example 3

[0062] like Figure 7 As shown, the difference between the present embodiment 3 and the above-mentioned embodiment 1 is that the buckle structure 333 is respectively arranged on the outer surface of the first cantilever 331 and the second cantilever 332, which can be one or more of the elongated protrusions, columnar protrusions, conical protrusions and wedge-shaped protrusions described above. Therefore, the engaging groove 322 can be correspondingly arranged as one or more of the elongated holes, columnar holes, conical holes and wedge-shaped holes that penetrate the upper side wall and the lower side wall of the receiving groove 321. Therefore, when the first cantilever 331 and the second cantilever 332 are inserted into the receiving groove 321, the buckle structure 333 on the first cantilever 331 and the buckle structure 333 on the second cantilever 332 can be respectively inserted into the buckle groove 322 on the upper side and the lower side of the receiving groove 321, so that the connection force between the second connector 33 and the first connector 32 is more uniform.

[0063] In addition, if Figure 7 As shown, another variation of the present embodiment 3 may be to provide a pressing platform 334 on the first cantilever 331 and the second cantilever 332 located outside the receiving groove 321, so that it is more convenient to apply force from the outside of the first cantilever 331 and the second cantilever 332. In this variation, the headband connection hole 335 may not be provided, or the headband connection hole 335 may be provided at other positions on the breathing mask.

[0064] The similarities between this embodiment 3 and the above-mentioned embodiment 1 will not be repeated again.

[0065] Example 4

[0066] like Figure 8 and Fig. 9 As shown, the difference between the present embodiment 3 and the above-mentioned embodiment 1 is that the receiving groove 321 is configured as a through groove penetrating the first connector 32, and the extension direction of the first cantilever 331 and the second cantilever 332 (such as Figure 8 The dotted arrow in the middle) and the slotting direction of the receiving slot 321 (as shown in FIG. Figure 8 Therefore, the first cantilever 331 and the second cantilever 332 can pass through one end of the accommodating groove 321 and come out from the other end thereof.

[0067] like Figure 8 As shown, the pressing portion is configured as a pressing protrusion 336 disposed on the surfaces of the first cantilever 331 and the second cantilever 332 away from each other. The ends of the first cantilever 331 and the second cantilever 332 away from the arc-shaped connecting portion 330 are respectively provided with a snap-fitting protrusion 337, the snap-fitting protrusion 337 is used to snap-fit ​​with one end of the through slot, and the other end of the through slot is snap-fitted with the pressing protrusion 336, so that the through slot is located between the snap-fitting protrusion 337 and the pressing protrusion 336.

[0068] The receiving structure includes the end of the receiving groove 321 (through groove), so when the first cantilever 331 and the second cantilever 332 pass through one end of the receiving groove 321 and pass out from the other end thereof, as shown in FIG. Fig. 9 As shown, the engaging protrusion 337 on the first cantilever 331 is engaged with one end of the receiving groove 321 upward, and the engaging protrusion 337 on the second cantilever 332 is engaged with one end of the receiving groove 321 downward. And the other end of the receiving groove 321 is just in contact with the pressing protrusion 336, so that the receiving groove 321 is clamped between the engaging protrusion 337 and the pressing protrusion 336, thereby fixing the second connector 33 and the first connector 32. Therefore, in this embodiment 4, the receiving structure is a part of the surface of the receiving groove 321, so it can be regarded as that the receiving structure (that is, the end of the through groove of the receiving groove 321) is accommodated between the engaging protrusion 337 and the pressing protrusion 336.

[0069] like Figure 8 As shown, in order to take into account the dual functions of facilitating force application and engaging with the receiving groove 321, the pressing protrusion 336 can be set to a T-shaped structure, which includes a first protrusion 3361 extending along the width direction of the first cantilever 331 (or the second cantilever 332) and a second protrusion 3362 extending from the middle part of the first protrusion 3361 along the same direction as the extension direction of the first cantilever 331 (or the second cantilever 332). Therefore, the second protrusion 3362 can abut the end of the receiving groove 321, and the connection between it and the first protrusion 3361 and the first protrusion 3361 as a whole can be used as a force application point to apply force to it.

[0070] Furthermore, if Figure 8 As shown, the second connector 33 further includes a connecting lug 338 having a headband connecting hole 335, and the connecting lug 338 is disposed at the connecting portion of the first cantilever 331 and the second cantilever 332, and is connected along the extending direction of the first cantilever 331 or the second cantilever 332 (such as Figure 8 The connecting lug 338 extends in the opposite direction to the arc-shaped connecting portion 330 (indicated by the dashed arrow), that is, the connecting lug 338 extends from the outer side of the arc-shaped connecting portion 330 to the direction away from the arc-shaped connecting portion 330, so as to facilitate the setting of the headband connecting hole 335 thereon for connection with the headband.

[0071] The similarities between this embodiment 4 and the above-mentioned embodiment 1 will not be repeated again.

[0072] Example 5

[0073] On the basis of the above-mentioned embodiments 1, 2, 3 and 4, Fig.10 As shown, the utility model also provides a breathing mask, including a mask body 31 and the above-mentioned connecting device for the breathing mask, and the first connector 32 is arranged on the outer surface of the mask body 31 or.

[0074] The first connector 32 may be embedded in the mask body 31, for example, the second connector 33 in the above-mentioned embodiments 1, 2 and 3 may be used. Alternatively, the first connector 32 may be disposed on the outer surface of the frame 311 of the mask body 31, for example, the second connector 33 in the above-mentioned embodiment 4 may be used.

[0075] The mask body 31 may also include a frame 311 and a cushion 312 and a curved pipe 313 respectively located on both sides of the frame 311. The specific structure and arrangement of the frame 311 may adopt the existing structure and arrangement, and the utility model will not repeat them. In addition, the breathing mask of the utility model may also include other necessary components for realizing its functions, such as exhaust holes, connecting pipes, etc., which can refer to the components in the prior art, and the utility model will not repeat them.

[0076] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as 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 connection device for a breathing mask, characterized in that: include: a first connector for connecting to the breathing mask; as well as a second connector which can be inserted into the first connector and detachably connected to the first connector, wherein the second connector comprises a first cantilever and a second cantilever, wherein the first cantilever and the second cantilever are elastically connected, The first cantilever and / or the second cantilever is also provided with a snap-fit ​​structure, the first connector is also provided with a receiving structure matched with the snap-fit ​​structure, and the snap-fit ​​structure is detachably connected to the receiving structure.

2. The connection device for a breathing mask according to claim 1, characterized in that: The first connector includes a receiving groove for receiving the first cantilever and the second cantilever, the extension direction of the receiving groove is parallel to the extension direction of the first cantilever or the second cantilever, and the first cantilever and the second cantilever can be inserted into the receiving groove when they are close to each other.

3. The connection device for a breathing mask according to claim 2, characterized in that: A pressing portion is further provided on the first cantilever and / or the second cantilever. The pressing portion is located outside the accommodating groove. The pressing portion is configured to be acted upon by a force to bring the first cantilever and the second cantilever closer to each other.

4. The connection device for a breathing mask according to claim 3, characterized in that: The pressing portion is configured as a pressing platform disposed on the shorter one of the first cantilever and the second cantilever, and a headband connecting hole is further disposed on the longer one of the first cantilever and the second cantilever.

5. The connection device for a breathing mask according to any one of claims 2 to 4, characterized in that: The accommodating structure comprises a snap-fitting groove which is arranged on one side or both sides of the accommodating groove and communicated with the accommodating groove, and the snap-fitting groove is used to snap-fit ​​with the buckle structure.

6. The connection device for a breathing mask according to claim 5, characterized in that: The buckle structure is one or more of a long strip protrusion, a columnar protrusion, a cone-shaped protrusion and a wedge-shaped protrusion on the outer surface of the first cantilever and / or the second cantilever.

7. The connection device for a breathing mask according to claim 3, characterized in that: The receiving groove is configured as a through groove penetrating the first connector, and the receiving structure includes an end portion of the through groove.

8. The connection device for a breathing mask according to claim 7, characterized in that: The pressing portion is configured as a pressing protrusion disposed on surfaces of the first cantilever and the second cantilever that are away from each other; The ends of the first cantilever and the second cantilever are respectively provided with a snap-fitting protrusion, the snap-fitting protrusion is used to snap-fit ​​with one end of the through slot, and the other end of the through slot is snap-fit ​​with the pressing protrusion, so that the through slot is located between the snap-fitting protrusion and the pressing protrusion.

9. The connection device for a breathing mask according to claim 7, characterized in that: The second connector also includes a connecting lug having a headband connecting hole, the connecting lug is arranged at a connecting portion of the first cantilever and the second cantilever, and extends in a direction opposite to an extending direction of the first cantilever or the second cantilever.

10. A connection device for a breathing mask according to any one of claims 1-4, 6, 7, 8 or 9, characterized in that: The first cantilever and the second cantilever extend parallel to each other, so that the second connector forms a U-shaped structure.

11. A breathing mask, characterized in that: The invention comprises a mask body and a connection device for a respiratory mask according to any one of claims 1 to 10, wherein the first connector is arranged on an outer surface of the mask body or embedded in the mask body.

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