Mask system

Abstract

The utility model relates to the technical field of medical instruments, in particular to a mask system. A liner assembly in the mask system is used for covering the face, the liner assembly is provided with a ventilation part and a liner through hole, and a plurality of ventilation holes are formed in the ventilation part; the frame is connected with the gasket assembly, the frame is provided with a frame through hole, the frame through hole corresponds to the ventilation part and the gasket through hole, and the frame through hole exposes the ventilation hole and the gasket through hole out of the frame; the gas transmission assembly is connected with the frame, the first end of the gas transmission assembly is inserted into the frame through hole, and the gas transmission assembly is communicated with the liner through hole. The frame through holes are formed in the frame, so that the gas conveying channel of the gas conveying assembly can be communicated with the liner through holes, the vent holes are avoided, and it is guaranteed that gas is introduced into the breathing cavity and gas exhaled by the human body is discharged. Moreover, the ventilation part and the liner through hole can face the mouth and the nose of the human body together, so that gas can be introduced into the human body and gas exhaled by the human body can be discharged, and the treatment effect of the mask system is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a mask system. Background Technology

[0002] Respiratory diseases include obstructive sleep apnea (OSA), Cheyne-Stokes respiratory system (CSR), respiratory insufficiency, obesity-related hyperventilation syndrome (OHS), chronic obstructive pulmonary disease (COPD), neuromuscular diseases (NMD), and chest wall diseases. Mechanical ventilation is an effective treatment for these respiratory diseases. Mechanical ventilation is divided into two forms: invasive ventilation using intubation and non-invasive ventilation using a face mask. The face mask is a patient interface in non-invasive ventilation systems. By wearing the mask, air from the breathing device is delivered into the patient's airway through the nose and / or mouth. The mask forms a seal with the patient's face to facilitate treatment under appropriate positive pressure.

[0003] However, improperly designed mask systems have drawbacks, such as the retention of exhaled carbon dioxide, which affects the treatment effect, as well as issues with the seal between the pad and the frame, and the mutual rotation between the two. Utility Model Content

[0004] In view of this, the present invention proposes a face mask system that aims to partially or completely solve the problem of unreasonable settings in existing face mask systems, thereby addressing at least one of the aforementioned issues.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] In a first aspect, this utility model provides a face mask system, the face mask system including a padding assembly, a frame, and an air supply assembly; the padding assembly is used to cover the face, the padding assembly has a ventilation section and a padding through hole, the ventilation section and the padding through hole are adjacent, and the sidewalls of the ventilation section and the padding through hole adjacent to each other form part of the hole wall of the padding through hole; the ventilation section is provided with a plurality of ventilation holes; the frame is connected to the padding assembly, the frame is provided with a frame through hole, the frame through hole is provided corresponding to the ventilation section and the padding through hole, the frame through hole exposes the ventilation holes and the padding through hole in the frame; the air supply assembly is connected to the frame, the first end of the air supply assembly is inserted into the frame through hole, and the air supply assembly communicates with the padding through hole.

[0007] In one embodiment, the vent protrudes from the surface of the liner assembly near the frame, and the portion of the vent protruding from the frame is inserted into a through-hole in the frame.

[0008] In one embodiment, the frame through hole includes a first sub-frame through hole and a second sub-frame through hole, the first sub-frame through hole and the second sub-frame through hole are connected, the vent is provided in the first sub-frame through hole, the second sub-frame through hole is provided corresponding to the gasket through hole, and the first end of the gas delivery assembly is inserted into the second sub-frame through hole.

[0009] In one embodiment, the second subframe through hole has a second subframe hole wall that extends from the frame toward the gasket assembly, with one end of the second subframe hole wall facing away from the frame inserted into the gasket through hole, and the second subframe hole wall being connected to the hole wall of the gasket through hole.

[0010] In one embodiment, the wall of the second subframe hole engages with the wall of the gasket through hole.

[0011] In one embodiment, a portion of the first end of the gas delivery assembly engages with the wall of the second subframe hole, and the remaining portion engages with the sidewall adjacent to the vent and the gasket through hole.

[0012] In one embodiment, perpendicular to the air intake direction of the liner assembly, both the first subframe through hole and the vent are fan-shaped through holes, and the shapes of the first subframe through hole and the vent are adapted to each other; and / or, both the second subframe through hole and the liner through hole are circular through holes, the end of the air delivery assembly inserted into the second subframe through hole has a circular structure, and the air delivery assembly is rotatably connected to the second subframe through hole.

[0013] In one embodiment, perpendicular to the air intake direction of the liner assembly, the first subframe through hole and the second subframe through hole are connected to form a circular through hole; the venting part has a fan-shaped structure, and the liner through hole is a fan-shaped through hole; the end of the air delivery assembly inserted into the second subframe through hole has a fan-shaped structure and is adapted to the liner through hole.

[0014] In one embodiment, when the mask system is worn, the ventilation section is located above the through-hole of the padding, and the ventilation section is positioned to correspond to the mouth and nose of the human body.

[0015] In one embodiment, the gas delivery assembly includes a connector and a gas delivery pipe, one end of the connector being inserted into the frame through hole and connected to the frame, and the other end of the connector being connected to the gas delivery pipe; and / or, the gas delivery assembly includes a bend and a connector, one end of the bend being inserted into the frame through hole and connected to the frame, and the other end of the bend being connected to the connector.

[0016] This utility model discloses a mask system. The frame through-holes on the frame allow the air delivery channel of the air delivery component to connect with the through-holes in the liner, while avoiding the ventilation holes, ensuring the intake of gas into the respiratory cavity and the expulsion of exhaled gas. Furthermore, due to the size limitations of the frame and liner components, and the proximity of the ventilation section and the liner through-holes, the adjacent sidewalls of the ventilation section and the liner through-holes form part of the hole wall of the liner through-hole. The ventilation holes on the ventilation section and the liner through-holes both face the mouth and nose of the human body, further facilitating the intake of gas and the expulsion of exhaled gas, preventing the retention of exhaled carbon dioxide, and improving the therapeutic effect of the mask system.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a structural schematic diagram of the front view of a mask system according to an embodiment of the present invention;

[0020] Figure 2 This is a structural schematic diagram of an exploded view of the mask system according to an embodiment of the present invention;

[0021] Figure 3 for Figure 1 A structural schematic diagram of the B-B sectional view;

[0022] Figure 4 for Figure 3 A structural schematic diagram of the enlarged view of section C;

[0023] Figure 5 This is a structural schematic diagram of the front view of the padding assembly and frame according to an embodiment of the present invention;

[0024] Figure 6 for Figure 5 A schematic diagram of the structure in the D-D cross-section view;

[0025] Figure 7 for Figure 6 A structural schematic diagram of the enlarged view of section F in the middle;

[0026] Figure 8 for Figure 5 Schematic diagram of the structure of the E-E sectional view;

[0027] Figure 9 This is a structural schematic diagram of an exploded view of the padding assembly and frame according to an embodiment of the present invention;

[0028] Figure 10 This is a three-dimensional structural schematic diagram of the gasket assembly according to an embodiment of the present invention;

[0029] Figure 11 This is a structural schematic diagram of a three-dimensional view of the frame according to an embodiment of the present invention;

[0030] Figure 12 This is a structural schematic diagram of an exploded view of the mask system according to another embodiment of the present invention;

[0031] Figure 13 This is a structural schematic diagram of the three-dimensional view of the mask system described in the third embodiment of this utility model;

[0032] Figure 14 This is a structural schematic diagram of an exploded view of the mask system according to the third embodiment of the present invention;

[0033] Figure 15 This is a schematic diagram of the mask system as described in an embodiment of the present invention when worn.

[0034] Explanation of reference numerals in the attached figures:

[0035] 10. Padding assembly; 11. Ventilation section; 12. Padding through-hole; 13. Ventilation hole; 14. Protrusion; 15. Flexible padding; 16. Cup;

[0036] 20. Frame; 21. Frame through hole; 22. First sub-frame through hole; 23. Second sub-frame through hole; 24. Bayonet; 25. Connecting hole; 26. Second sub-frame hole wall; 27. Annular protrusion;

[0037] 30. Gas delivery assembly; 31. Connector; 32. Gas delivery pipe; 33. Bend; 34. Connector head; 35. Gas delivery channel; 36. Annular groove; 37. Clearance part;

[0038] 40. Headband. Detailed Implementation

[0039] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0040] Reference Figure 1It shows a structural schematic diagram of the mask system provided in an embodiment of the present invention, and further refers to Figures 2 to 15 As shown, the mask system includes a padding assembly 10, a frame 20, and an air supply assembly 30. The padding assembly 10 is used to cover the face and has a ventilation section 11 and a padding through hole 12. The ventilation section 11 and the padding through hole 12 are adjacent to each other, and the sidewalls of the ventilation section 11 and the padding through hole 12 are formed as part of the hole wall of the padding through hole 12. The ventilation section 11 is provided with a plurality of ventilation holes 13. The frame 20 is connected to the padding assembly 10 and has a frame through hole 21. The frame through hole 21 is provided corresponding to the ventilation section 11 and the padding through hole 12, and the frame through hole 21 exposes the ventilation holes 13 and the padding through hole 12 to the outside of the frame 20. The air supply assembly 30 is connected to the frame 20, and the first end of the air supply assembly 30 is inserted into the frame through hole 21. The air supply assembly 30 communicates with the padding through hole 12.

[0041] The padding assembly 10 is used to cover the human face, forming a breathing cavity between the padding assembly 10 and the human face, which can accommodate the mouth and nose of the human body. The multiple ventilation holes 13 and padding through holes 12 provided on the ventilation part 11 of the padding assembly 10 are respectively connected to the breathing cavity.

[0042] The frame 20 is connected to the padding assembly 10. The frame through hole 21 provided on the frame 20 corresponds to the venting part 11 and the padding through hole 12. The frame through hole 21 exposes the venting part 11 and the padding through hole 12 to the frame 20. The frame through hole 21 does not block the padding through hole 12 and the multiple vent holes 13 provided on the venting part 11.

[0043] The gas delivery assembly 30 is connected to the frame 20. The first end of the gas delivery assembly 30 is inserted into the frame through hole 21. The gas delivery assembly 30 is provided with a gas delivery channel 35, which is connected to the liner through hole 12. The gas delivery assembly 30 is used to deliver gas into the breathing chamber through the liner through hole 12. The gas exhaled by the human body is discharged through the ventilation hole 13.

[0044] In the mask system of this application embodiment, the frame through-hole 21 on the frame 20 allows the air supply channel 35 of the air supply assembly 30 to connect with the pad through-hole 12, while avoiding the ventilation hole 13, ensuring the intake of gas into the respiratory cavity and the discharge of exhaled gas. Furthermore, due to the size limitations of the frame 20 and the pad assembly 10, and the proximity of the ventilation section 11 and the pad through-hole 12, the adjacent sidewalls of the ventilation section 11 and the pad through-hole 12 form part of the hole wall of the pad through-hole 12. The ventilation hole 13 on the ventilation section 11 and the pad through-hole 12 both face the mouth and nose of the human body, further facilitating the intake of gas into the human body and the discharge of exhaled gas, preventing the retention of exhaled carbon dioxide gas, and improving the therapeutic effect of the mask system.

[0045] In some embodiments, to improve user comfort, refer to Figure 12 As shown, the padding assembly 10 includes a flexible pad 15 and a cup 16. The flexible pad 15 is connected to the outer periphery of the cup 16. The flexible pad 15 is used to contact the human face, and the cup 16 is connected to the frame 20.

[0046] The flexible pad 15 and the cup 16 are detachably connected. Of course, the flexible pad 15 and the cup 16 can also be a one-piece molded structure, depending on the usage requirements.

[0047] In some embodiments, refer to Figure 11 As shown, the frame 20 is provided with a connection hole 25, which connects to the headband 40. The headband 40 is used to fix the mask system to the human face and provide stable fixation. Moreover, the headband 40 also has the advantages of being adjustable in size and relatively soft.

[0048] In some embodiments, the ventilation portion 11 protrudes from the padding assembly 10 near the surface of the frame 20, and the portion of the ventilation portion 11 protruding from the frame 20 is inserted into the frame through hole 21. In the above structure of the application embodiment, the ventilation portion 11 can be used for positioning between the frame 20 and the padding assembly 10, and effectively avoids the frame 20 from blocking the ventilation hole 13, causing the carbon dioxide gas exhaled by the human body to remain in the respiratory cavity.

[0049] In some embodiments, refer to Figure 11 As shown, the frame through hole 21 includes a first sub-frame through hole 22 and a second sub-frame through hole 23. The first sub-frame through hole 22 and the second sub-frame through hole 23 are connected. A ventilation part 11 is provided in the first sub-frame through hole 22. The second sub-frame through hole 23 is provided corresponding to the gasket through hole 12. The first end of the gas delivery assembly 30 is inserted into the second sub-frame through hole 23.

[0050] In some embodiments, refer to Figure 11 As shown, the second sub-frame through hole 23 has a second sub-frame hole wall 26, which extends from the frame 20 toward the padding assembly 10. One end of the second sub-frame hole wall 26 facing away from the frame 20 is inserted into the padding through hole 12, and the second sub-frame hole wall 26 is connected to the hole wall of the padding through hole 12. In the above mechanism of this application embodiment, the second sub-frame hole wall 26 facing away from the frame 20 is inserted into the padding through hole 12, and the second sub-frame hole wall 26 is connected to the hole wall of the padding through hole 12, which can both limit the second sub-frame through hole 23 and the padding through hole 12, and also realize the connection between the frame 20 and the padding assembly 10.

[0051] In some embodiments, the second subframe hole wall 26 engages with the hole wall of the gasket through hole 12. This engagement offers the advantage of simple and convenient connection.

[0052] In some embodiments, refer to Figure 3As shown, at the first end of the gas delivery assembly 30, part of it is engaged with the second subframe hole wall 26, and the remaining part is engaged with the side wall adjacent to the venting part 11 and the gasket through hole 12. The engagement also has a relative sealing function.

[0053] It is understood that there are various types of snap-fit ​​structures, which will not be elaborated upon in this application embodiment. Various snap-fit ​​structures can be applied to the embodiments of this application. For example, in some embodiments, a snap-fit ​​opening 24 is provided on the second sub-frame hole wall 26, referring to... Figure 7 As shown, a protrusion 14 is provided on the hole wall of the gasket through hole 12. One end of the hole wall 26 of the second sub-frame is inserted into the gasket through hole 12, and the protrusion 14 is engaged in the slot 24 to achieve a snap-fit. At this time, the sealing between the gasket assembly 10 and the frame 20 can also be increased.

[0054] For example, an annular groove 36 is formed on the outer wall of the first end of the gas delivery assembly 30. The annular groove 36 is recessed from the outer wall surface of the first end of the gas delivery assembly 30 toward the gas delivery channel 35. An annular protrusion 27 is provided on the hole wall 26 of the second sub-frame. The annular protrusion 27 is inserted into the annular groove 36 and into the side wall adjacent to the vent 11 and the gasket through hole 12. At this time, the sealing between the gas delivery assembly 30 and the frame 20 can be increased, and the gas delivery assembly 30 and the frame 20 can be rotated relative to each other.

[0055] In some embodiments, perpendicular to the air intake direction of the padding assembly 10, both the first sub-frame through hole 22 and the venting portion 11 are fan-shaped through holes, and the shapes of the first sub-frame through hole 22 and the venting portion 11 are adapted to each other. In the above structure of the embodiments of this application, since the shapes of the first sub-frame through hole 22 and the venting portion 11 are adapted to each other, the portion of the venting portion 11 protruding from the outer surface of the padding assembly 10 is inserted into the frame through hole 21, which can play a role in positioning and preventing errors.

[0056] In some embodiments, the second subframe through hole 23 and the liner through hole 12 are both circular through holes, and the end of the gas delivery assembly 30 inserted into the second subframe through hole 23 has a circular structure. The gas delivery assembly 30 is rotatably connected to the second subframe through hole 23.

[0057] In this embodiment, the shape of the end of the air supply component 30 inserted into the through hole 23 of the second sub-frame is adapted to the shape of the through hole 23 of the second sub-frame and the shape of the through hole 12 of the liner, so that the air supply component 30 is effectively connected to the through hole 21 of the frame. Moreover, the air supply component 30 is rotatably connected to the through hole 23 of the second sub-frame. When the mask system is in use, the air supply component 30 can rotate relative to the frame 20 according to the usage requirements, which can also play a role in limiting and preventing mistaken positioning.

[0058] In some embodiments, perpendicular to the air intake direction of the padding assembly 10, the first sub-frame through hole 22 and the second sub-frame through hole 23 are connected to form a circular through hole; the venting part 11 has a fan-shaped structure, and the padding through hole 12 is a fan-shaped through hole; the end of the air supply assembly 30 inserted into the second sub-frame through hole 23 has a fan-shaped structure and is adapted to the padding through hole 12. In the above structure of the embodiments of this application, the venting part 11 has a fan-shaped structure, the padding through hole 12 is a fan-shaped through hole, and the venting part 11 and the padding through hole 12 also form a circular structure adapted to the frame through hole 21. The shape of the first end of the air supply assembly 30 inserted into the second sub-frame through hole 23 is adapted to the shape of the padding through hole 12, so that the air supply channel 35 is effectively connected to the padding through hole 12.

[0059] In this embodiment, the first end of the gas delivery assembly 30 and the gasket through hole 12 are adapted in shape, and the gas delivery assembly 30 will not rotate relative to the frame 20.

[0060] In some embodiments, refer to Figure 3 As shown, for a more aesthetically pleasing design, the vent 11 can be designed not to protrude from the frame 20.

[0061] In other embodiments, reference is made to Figure 13 As shown, the end of the vent 11 away from the padding assembly 10 is configured to protrude from the surface of the frame 20. At this time, the shapes of the vent 11 and the air delivery assembly 30 are matched. In addition, a relief portion 37 is provided at the first end of the air delivery assembly 30, the relief portion 37 is recessed into the air delivery assembly 30, and the vent 11 is disposed within the relief portion 37.

[0062] In some embodiments, refer to Figure 15 As shown, when the mask system is worn, the ventilation section 11 is located above the through-hole 12 of the padding, i.e., as indicated by arrow A, the ventilation section 11 is positioned to correspond to the mouth and nose of the human body. In this embodiment of the application, the ventilation section 11 is positioned to correspond to the mouth and nose of the human body to facilitate the expulsion of exhaled gas and prevent the retention of exhaled carbon dioxide gas.

[0063] In some embodiments, refer to Figure 12 As shown, the gas delivery assembly 30 includes a connector 31 and a gas delivery tube 32. One end of the connector 31 is inserted into the frame through hole 21 and connected to the frame 20. The other end of the connector 31 is connected to the gas delivery tube 32. The gas delivery tube 32 is adapted to be connected to pressure support equipment such as a ventilator.

[0064] In other embodiments, reference is made to Figure 14 As shown, the gas delivery assembly 30 includes a bend 33 and a connector 34. One end of the bend 33 is inserted into the frame through hole 21 and connected to the frame 20, and the other end of the bend 33 is connected to the connector 34. The connector 34 is adapted to be connected to pressure support equipment such as a ventilator.

[0065] It is understood that in a conventional structure, there are multiple gas delivery components 30, and all of the multiple gas delivery components 30 can be connected to the frame 20, as long as they meet the usage requirements of the embodiments of this application.

[0066] In this embodiment, when in use, the mask system forms a breathing cavity by covering the human face with the padding assembly 10. External pressure support equipment such as a ventilator introduces gas into the breathing cavity through the gas delivery assembly 30, and the exhaled gas is discharged through the vent 13. Since the ventilation section 11 and the padding vent 12 are adjacent and both face the mouth and nose of the human body, it is beneficial for the introduction of gas into the human body and the discharge of exhaled gas, avoiding the retention of exhaled carbon dioxide gas and improving the therapeutic effect of the mask system.

[0067] The mask system of this utility model embodiment can be applied in a ventilation therapy device. In this case, the ventilation therapy device includes a ventilator and the above-mentioned mask system. The ventilator is connected to the mask system and is used to input gas into the mask system.

[0068] In the ventilation therapy device of this application embodiment, the frame through-hole 21 on the mask system frame 20 allows the air delivery channel 35 of the air delivery component 30 to connect with the liner through-hole 12, while avoiding the ventilation hole 13, ensuring the intake of gas into the respiratory cavity and the discharge of exhaled gas. Furthermore, due to the size limitations of the frame 20 and the liner component 10, and the proximity of the ventilation section 11 and the liner through-hole 12, the adjacent sidewalls of the ventilation section 11 and the liner through-hole 12 form part of the hole wall of the liner through-hole 12. The ventilation hole 13 on the ventilation section 11 and the liner through-hole 12 both face the mouth and nose of the human body, further facilitating the intake of gas into the human body and the discharge of exhaled gas, preventing the retention of exhaled carbon dioxide gas, and improving the therapeutic effect of the ventilation therapy device.

[0069] It should be noted that the mask system and ventilation therapy equipment can be used interchangeably and have the same or similar beneficial effects as any of the aforementioned mask systems. To avoid repetition, they will not be described again here.

[0070] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0071] The various embodiments in this specification are described in a related manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. For embodiments of devices, electronic devices, computer-readable storage media, and computer program products containing instructions, the descriptions are relatively simple because they are basically similar to the method embodiments; relevant parts can be referred to the descriptions of the method embodiments.

[0072] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A face mask system, characterized in that, The mask system includes, A padding assembly (10) is used to cover the face. The padding assembly (10) is provided with a ventilation part (11) and a padding through hole (12). The ventilation part (11) and the padding through hole (12) are adjacent to each other. The sidewall of the ventilation part (11) and the padding through hole (12) adjacent to each other forms part of the hole wall of the padding through hole (12). A plurality of ventilation holes (13) are provided on the ventilation part (11). A frame (20) is connected to the padding assembly (10). The frame (20) is provided with a frame through hole (21). The frame through hole (21) is provided corresponding to the vent (11) and the padding through hole (12). The frame through hole (21) exposes the vent (13) and the padding through hole (12) to the frame (20). An air delivery assembly (30) is connected to the frame (20). The first end of the air delivery assembly (30) is inserted into the through hole (21) of the frame, and the air delivery assembly (30) communicates with the through hole (12) of the liner.

2. The mask system according to claim 1, characterized in that, The vent (11) protrudes from the surface of the padding assembly (10) near the frame (20), and the portion of the vent (11) protruding from the frame (20) is inserted into the frame through hole (21).

3. The mask system according to claim 2, characterized in that, The frame through hole (21) includes a first sub-frame through hole (21) and a second sub-frame through hole (21). The first sub-frame through hole (21) and the second sub-frame through hole (21) are connected. The ventilation part (11) is provided in the first sub-frame through hole (21). The second sub-frame through hole (21) is provided corresponding to the liner through hole (12). The second sub-frame through hole (21) is used for the first end of the air supply assembly (30) to be inserted.

4. The mask system according to claim 3, characterized in that, The second sub-frame through hole (21) has a second sub-frame hole wall (26) that extends from the frame (20) toward the pad assembly (10). One end of the second sub-frame hole wall (26) away from the frame (20) is inserted into the pad through hole (12), and the second sub-frame hole wall (26) is connected to the hole wall of the pad through hole (12).

5. The mask system according to claim 4, characterized in that, The second subframe hole wall (26) engages with the hole wall of the gasket through hole (12).

6. The mask system according to claim 5, characterized in that, The first end of the gas delivery assembly (30) is partially engaged with the second subframe hole wall (26), and the remaining part is engaged with the side wall adjacent to the vent (11) and the liner through hole (12).

7. The mask system according to claim 3, characterized in that, Perpendicular to the air intake direction of the pad assembly (10), both the first sub-frame through hole (21) and the vent (11) are fan-shaped through holes, and the shapes of the first sub-frame through hole (21) and the vent (11) are adapted to each other; and / or, The second subframe through hole (21) and the liner through hole (12) are both circular through holes. The end of the gas delivery assembly (30) inserted into the second subframe through hole (21) has a circular structure. The gas delivery assembly (30) is rotatably connected to the second subframe through hole (21).

8. The mask system according to claim 3, characterized in that, Perpendicular to the air intake direction of the pad assembly (10), the first subframe through hole (21) and the second subframe through hole (21) are connected to form a circular through hole; The ventilation section (11) has a fan-shaped structure, and the gasket through hole (12) is a fan-shaped through hole; The gas delivery assembly (30) is inserted into the end of the second subframe through hole (21) in a fan-shaped structure and is adapted to the gasket through hole (12).

9. The mask system according to claim 1, characterized in that, When the mask system is worn, the ventilation part (11) is located above the through hole (12) of the pad, and the ventilation part (11) is set to correspond to the mouth and nose of the human body.

10. The mask system according to claim 1, characterized in that, The gas delivery assembly (30) includes a connector (31) and a gas delivery pipe (32). One end of the connector (31) is inserted into the frame through hole (21) and connected to the frame (20). The other end of the connector (31) is connected to the gas delivery pipe (32); and / or, The gas delivery assembly (30) includes a bend (33) and a connector (34). One end of the bend (33) is inserted into the frame through hole (21) and connected to the frame (20). The other end of the bend (33) is connected to the connector (34).

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