Breathing mask

Abstract

The utility model relates to a breathing mask, and relates to the technical field of treatment of breathing-related diseases. The breathing mask provided by the utility model comprises the components of a liner assembly which comprises cups and a liner which is in contact with the face of a user, and the liner is internally provided with a chamber; the air inlet assembly is used for being in fluid communication with the cavity, the air inlet assembly comprises an air inlet pipe and a middle piece, one side of the middle piece is detachably connected with the cup, and the other side of the middle piece is detachably connected with the air inlet pipe; the frame comprises an annular structure and / or an arch part, and the frame is detachably connected with the cups through the annular structure and / or the arch part. According to the breathing mask, the air inlet assembly can be detached from the liner assembly to be cleaned when the air inlet assembly needs to be cleaned, so that the difficulty of cleaning the air inlet assembly is reduced, miniaturization of the frame can be facilitated, the shielding area of the frame with the smaller structure and size on the sight of a user is smaller, and the use experience of the breathing mask is improved.

Description

Technical Field

[0001] This utility model relates to the field of treatment technology for respiratory-related diseases, and in particular to a breathing mask. Background Technology

[0002] A breathing mask typically consists of a soft pad for contact with the patient's or user's face, a rigid or semi-rigid shell or frame, and a curved tube for connecting the ventilation tube and the pad. In use, the breathing mask pad is secured to the patient's or user's face via a headband, and ventilation air is delivered through the curved tube to the patient's airway for breathing.

[0003] Existing breathing masks generally integrate the tube and cup into the frame, making it difficult for users to clean and easily leading to incomplete cleaning. In addition, the integration of the tube and cup into the frame requires the frame to have a structure that fits and connects with them, resulting in a complex and large frame structure that is more likely to obstruct the patient's or user's vision and affect their user experience. Utility Model Content

[0004] This invention provides a breathing mask to solve at least one of the above-mentioned problems.

[0005] This utility model provides a breathing mask, comprising: a pad assembly, the pad assembly including a cup and a pad for contacting the user's face, the pad having a chamber, and an outwardly protruding connecting portion on the outer end of the cup, the connecting portion having a connecting hole communicating with the chamber; an air intake assembly for fluid communication with the chamber, the air intake assembly including an air intake tube and an intermediate component, one side of the intermediate component being inserted into the connecting hole and detachably connected to the cup, and the other side of the intermediate component being detachably connected to the air intake tube; and a frame, the frame including an annular structure and / or an arch, the annular structure and / or arch being detachably connected to the circumferential outer wall of the connecting portion and capable of at least covering a portion of the circumferential outer wall of the connecting portion, the side of the annular structure and / or arch away from the air intake assembly being capable of abutting against the outer end of the cup.

[0006] In one embodiment, the annular structure is sleeved on the circumferential outer side of the connecting part, and the outer end face of the intermediate part presses the annular structure against the cup to restrict the axial movement of the annular structure.

[0007] In one embodiment, a flange structure is provided on the outer side of the intermediate component. The outer diameter of the flange structure is larger than the inner diameter of the annular structure, and the inner end face of the flange structure abuts against the outer end face of the annular structure.

[0008] In one embodiment, the annular structure is provided with a first limiting structure extending along the axial direction, and the cup is provided with a second limiting structure extending along the axial direction. The first limiting structure and the second limiting structure are connected in cooperation to limit the relative rotation between the annular structure and the cup.

[0009] In one embodiment, one of the first limiting structure and the second limiting structure is constructed as a groove-shaped structure, and the other of the first limiting structure and the second limiting structure is constructed as a protrusion structure that matches the groove-shaped structure. The cross-sectional area of ​​the groove-shaped structure and the protrusion structure gradually decreases in the axial direction.

[0010] In one embodiment, the annular structure has a frame mating surface extending circumferentially thereon, and the circumferential outer wall of the connecting part has a cup mating surface extending circumferentially along the cup. When the connecting part is inserted into the annular structure, the frame mating surface fits against the cup mating surface to restrict radial movement of the cup.

[0011] In one embodiment, the bow portion can cover a portion of the circumferential outer wall of the connector, and the bow portion is detachably clamped to the outside of the connector.

[0012] In one embodiment, one of the bow and the cup is provided with a receiving groove extending circumferentially thereon, and the other is provided with a limiting protrusion extending circumferentially thereon. The limiting protrusion cooperates with the receiving groove to limit axial movement between the bow and the cup.

[0013] In one embodiment, the limiting protrusion is provided with a first engaging structure extending along the axial direction, and the receiving groove is provided with a second engaging structure extending along the axial direction. One of the first engaging structure and the second engaging structure is a slot structure, and the other of the first engaging structure and the second engaging structure is a block structure. The block structure and the slot structure cooperate to restrict the relative rotation between the bow and the connecting part.

[0014] In one embodiment, the intermediate component is rotatably connected to the cup, the cup is provided with a circumferentially extending third snap-fit ​​structure, the intermediate component is provided with a circumferentially extending fourth snap-fit ​​structure, one of the third snap-fit ​​structure and the fourth snap-fit ​​structure is a rotating groove, the other of the third snap-fit ​​structure and the fourth snap-fit ​​structure is a rotating protrusion, the third snap-fit ​​structure and the fourth snap-fit ​​structure snap-fit ​​together, and the side of the third snap-fit ​​structure along the axial direction abuts against the fourth snap-fit ​​structure.

[0015] In one embodiment, the intermediate component includes a first tube, a second tube, and a transition portion connecting the first tube and the second tube. The first tube is inserted into a connecting hole and rotatably connected to the cup. The second tube is engaged with an air inlet pipe. The first tube surrounds the second tube, and the inner wall of the first tube and the outer wall of the second tube form an exhaust channel. The transition portion is provided with a plurality of exhaust holes, and the exhaust channel is in fluid communication with the plurality of exhaust holes respectively.

[0016] In one embodiment, the intake pipe includes a first connector detachably connected to an intermediate component and a second connector for connection to a venting duct, the first connector and the second connector being in fluid communication and having an included angle between their axial directions.

[0017] In one embodiment, the intermediate component is provided with an intermediate component positioning part extending along its axial direction, and the first connector is provided with an intake pipe positioning part extending along its axial direction. One of the intermediate component positioning part and the intake pipe positioning part is a groove-shaped structure, and the other of the intermediate component positioning part and the intake pipe positioning part is a protruding structure. The side of the intermediate component positioning part abuts against the intake pipe positioning part in the circumferential direction.

[0018] In one embodiment, the padding is integrally connected to the cup or is detachably connected.

[0019] Compared with the prior art, the advantages of this utility model are that the air intake component is not integrated on the frame, but is detachably connected to the cup of the padding component through its intermediate part. Therefore, the air intake component can be removed from the padding component for cleaning when it needs to be cleaned, thereby reducing the difficulty of cleaning the air intake component. It also facilitates the miniaturization of the frame, because there is no need to set a structure on the frame to cooperate with and / or connect to the air intake component. The smaller frame structure and volume obstruct the user's vision area less, which is conducive to improving the user experience of the breathing mask. Attached Figure Description

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

[0021] Figure 1 This is a three-dimensional structural diagram of a breathing mask in one embodiment of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the breathing mask in another embodiment of the present invention;

[0023] Figure 3 yes Figure 1 A schematic diagram of the exploded structure of a breathing mask;

[0024] Figure 4 yes Figure 2 A schematic diagram of the exploded structure of a breathing mask;

[0025] Figure 5 This is a schematic diagram of the main structure of the breathing mask in an embodiment of this utility model;

[0026] Figure 6 This is a three-dimensional structural schematic diagram of a pad assembly according to an embodiment of the present invention;

[0027] Figure 7 This is a three-dimensional structural schematic diagram of a frame in an embodiment of this utility model;

[0028] Figure 8 yes Figure 6 Inner liner assembly and Figure 7 A three-dimensional structural diagram of the assembled components formed by connecting the middle frames;

[0029] Figure 9 This is a cross-sectional view of a breathing mask according to an embodiment of the present invention.

[0030] Figure 10 yes Figure 9 A cross-sectional view of the structure with the frame and intake pipe hidden in the middle;

[0031] Figure 11 This is a three-dimensional structural schematic diagram of a frame in an embodiment of this utility model;

[0032] Figure 12 This is a three-dimensional structural schematic diagram of a pad assembly according to an embodiment of the present invention;

[0033] Figure 13 This is a three-dimensional structural diagram of the intake pipe in an embodiment of this utility model;

[0034] Figure 14 This is a three-dimensional structural diagram of an intermediate component in an embodiment of this utility model;

[0035] Figure 15 yes Figure 14 A cross-sectional view of the assembly formed by the intermediate component and the corresponding gasket assembly;

[0036] Figure 16 This is a three-dimensional structural diagram of a breathing mask according to an embodiment of this utility model.

[0037] Figure label:

[0038] 100. Pad assembly;

[0039] 110. Bra cup; 111. Second limiting structure; 112. Bra cup mating surface; 113. Receiving groove; 114. Second snap-fit ​​structure; 115. Third snap-fit ​​structure; 116. Connecting part; 117. Connecting hole;

[0040] 120. Padding;

[0041] 200. Intake assembly;

[0042] 210. Intake pipe; 211. First connector; 212. Second connector; 213. Intake pipe positioning part;

[0043] 220. Intermediate component; 221. Flange structure; 222. Fourth snap-fit ​​structure; 223. Intermediate component positioning part; 224. First pipe section; 225. Transition section; 226. Second pipe section; 227. Vent hole; 228. Vent passage;

[0044] 300, Frame; 310, Ring structure; 311, First limiting structure; 312, Frame mating surface; 320, Bending part; 330, Bone beam arm; 340, Bow part; 341, Limiting protrusion; 342, First snap-fit ​​structure. Detailed Implementation

[0045] The present invention will be further described below with reference to the accompanying drawings.

[0046] See Figure 1 as well as Figure 2 As shown, this utility model provides a breathing mask, which can be a full-face mask (such as...). Figure 16 (as shown), nose mask or mouth-nose mask (such as...) Figure 1 and Figure 2 (As shown). Specifically, the breathing mask includes: a pad assembly 100, an air intake assembly 200, and a frame 300. The air intake assembly 200 is detachably connected to the pad assembly 100, and the pad assembly 100 is detachably connected to the frame 300.

[0047] When cleaning the intake assembly 200 is required, it can be removed from the gasket assembly 100, making cleaning more convenient compared to an intake assembly 200 integrated into the frame 300. Furthermore, since the intake assembly 200 is not connected to the frame 300, there is no need to provide a connection structure on the frame 300 for connecting the intake assembly 200. Compared to a frame 300 that requires a ball joint connection with the intake assembly 200, this significantly simplifies the structure of the frame 300, reduces the difficulty of miniaturizing the frame 300, and allows for the design of a compact frame 300 with minimal obstruction of the view, thereby improving the user experience.

[0048] Specifically, the padding assembly 100 includes a cup 110 and a pad 120 for contact with the user's face. The pad 120 can be integrally connected to the cup 110, or it can be detachably connected to the cup 110. The pad 120 has a chamber. When the air intake assembly 200 is connected to the cup 110 of the padding assembly 100, the air intake assembly is in fluid communication with the chamber of the pad 120.

[0049] The cup 110 can be designed to be detachably connected to the frame 300 via the intermediate piece 220 of the air intake assembly 200 (see [reference]). Figure 1 as well as Figure 3(As shown), the cup 110 can also be configured to be directly and detachably attached to the frame 300 (see...). Figure 2 as well as Figure 4 (As shown).

[0050] The air intake assembly 200 includes an air intake pipe 210 and an intermediate component 220. One side of the intermediate component 220 is detachably connected to the outer side of the cup 110, and the other side of the intermediate component 220 is detachably connected to the air intake pipe 210 (the detachable connection method includes one or more of threaded connection, snap-fit ​​connection, plug-in connection and magnetic connection).

[0051] When a breathing mask needs to be worn, first connect the cup 110 of the padding assembly 100 to the frame 300, and connect the air inlet tube 210 to the intermediate member 220. Then connect the side of the intermediate member 220 away from the air inlet tube 210 to the cup 110, so that the frame 300 is located between the intermediate member 220 and the cup 110. Finally, put the assembled breathing mask on the user's face, so that the padding 120 of the padding assembly 100 contacts the user's face, and the side of the air inlet tube 210 away from the intermediate member 220 is connected to the ventilation tube.

[0052] When the intake assembly 200 needs cleaning, it can be removed from the gasket assembly 100, and the intake pipe 210 and intermediate component 220 of the intake assembly 200 can be separated, thus facilitating the cleaning of the intake pipe 210 and intermediate component 220. Simultaneously, the gasket assembly 100 connected to the frame 300 can also be disassembled for cleaning.

[0053] See Figure 6 as well as Figure 12 As shown, in order to connect the intermediate component 220 and the frame 300 to the cup 110, a protruding connecting portion 116 is provided at the outer end of the cup 110. A connecting hole 117 is provided in the connecting portion 116, and the connecting hole 117 communicates with the chamber. One side of the intermediate component 220 is inserted into the connecting hole 117 and detachably connected to the cup 110. The frame 300 is mounted on the circumferential outer wall of the connecting portion 116. The frame 300 can at least cover a portion of the circumferential outer wall of the connecting portion 116, and the side of the frame 300 away from the air intake assembly 200 can abut against the outer end of the cup 110.

[0054] The intermediate component is inserted into the connection hole 117 in the connecting part 116, while the frame 300 is connected to the circumferential outer wall of the connecting part 116. The cup 110 simultaneously satisfies the connection between the frame 300 and the intermediate component 220, and avoids directly mounting the intermediate component 220 on the frame 300, eliminating the need to provide a structure on the frame 300 for connection with the intermediate component 220.

[0055] In some implementations, the connecting part 116 can be configured as a circular tubular structure as shown in the figure; in other implementations, the connecting part 116 can also be configured as a square tubular structure, or as a tubular structure with an outer square and an inner circle, or as a tubular structure with an outer circle and an inner square.

[0056] The frame 300 and the cup 110 can be connected in various ways. For example, in one connection method, the frame 300 can completely cover the entire circumference of the connection portion 116 (e.g., Figure 3 , Figure 5 , Figure 6 as well as Figure 7 (As shown); In another connection method, the frame 300 may only cover a portion of the circumferential direction of the connecting part 116 (as shown). Figure 2 , Figure 4 as well as Figure 11 (As shown). The following sections will provide a detailed explanation of these two connection methods.

[0057] See Figure 3 , Figure 5 , Figure 6 as well as Figure 7 As shown, in an implementation where the frame 300 can completely cover the entire circumference of the connecting portion 116, the frame 300 includes an annular structure 310, a cup 110 is inserted into the annular structure 310 from its inner end, and an intermediate member 220 is inserted into the connecting hole 117 of the connecting portion 116 from its outer end, with the outer end of the intermediate member 220 abutting against the outer end of the annular structure 310 to restrict the axial movement of the annular structure 310.

[0058] See Figure 7 as well as Figure 8 As shown, by inserting the connecting part 116 into the annular structure 310 from its inner end, the annular structure 310 is fitted around the circumferential outer side of the connecting part 116, thereby radially limiting the cup 110. Furthermore, the outer end of the intermediate piece 220 abuts against the end of the annular structure 310 away from the cup 110, thus preventing the frame 300 from moving axially away from the cup 110 and achieving axial limiting of the frame 300.

[0059] See Figure 9 as well as Figure 10 As shown, a flange structure 221 is provided at the outer end of the intermediate component 220. The outer diameter of the flange structure 221 is larger than the inner diameter of the annular structure 310, and the flange structure 221 is in contact with the outer end face of the annular structure 310. In other words, the flange structure 221 is used to axially limit the annular structure 310 away from the cover cup 110.

[0060] It is understandable that in some other implementations, the outer end of the intermediate component 220 may also be provided with several radially outwardly extending limiting blocks. By abutting the limiting blocks of the intermediate component 220 against the outer end face of the annular structure 310, the annular structure 310 is abutted. That is, the structure by which the intermediate component 220 axially limits the frame 300 is not limited to the flange structure 221 structure, but may also be provided with other structures that can abut against the outer end face of the annular structure 310 to achieve axial limiting of the annular structure 310.

[0061] Since the axial position of the annular structure 310 is limited by the intermediate piece 220 connected to the outer end face of the annular structure 310, there is no need to set related structures to snap into the frame 300 assembly or other structures on the annular structure 310. This can achieve axial positioning of the annular structure 310 and the cup 110, further simplifying the connection structure of the frame 300 and allowing the frame 300 to be made very thin.

[0062] See Figure 9 as well as Figure 10 As shown, the outer diameter of the flange structure 221 is larger than the outer diameter of the annular structure 310, so that the outer end face of the annular structure 310 completely abuts against the flange structure 221. Compared with the small-diameter flange structure 221, the intermediate piece 220 with the larger flange structure 221 can better achieve axial positioning of the frame 300.

[0063] See Figures 6 to 8 As shown, the annular structure 310 is provided with a first limiting structure 311 extending along the axial direction, and the cup 110 is provided with a second limiting structure 111 extending along the axial direction. One of the first limiting structure 311 and the second limiting structure 111 is a groove-shaped structure, and the other of the first limiting structure 311 and the second limiting structure 111 is a protruding structure. The side of the first limiting structure 311 in the circumferential direction abuts against the second limiting structure 111.

[0064] In other words, by the cooperation of the first limiting structure 311 and the second limiting structure 111 that abut against each other in the circumferential direction, the rotation of the cup 110 relative to the annular structure 310 can be avoided, thereby preventing the pad 120 that fits the face from rotating during use and improving the stability of the pad assembly 100.

[0065] See Figure 7 As shown, the annular structure 310 does not have any structural restrictions on the axial movement of the cup 110. After the intermediate piece 220 is removed from the cup 110, the annular structure 310 and the cup 110 can move relative to each other in the axial direction, thus making it easy to remove the cup 110 from the annular structure 310. Compared to snapping the padding assembly 100 to the frame 300, the process of removing the cup 110 is much easier.

[0066] It should be noted that although the first limiting structure 311 shown in the figure is a protruding structure and the second limiting structure 111 is a groove structure, in practice, the first limiting structure 311 can also be set as a groove structure and the corresponding second limiting structure 111 can be set as a protruding structure.

[0067] In addition, since both the first limiting structure 311 and the second limiting structure 111 extend axially, and one of them is a groove and the other is a protrusion, the groove and the protrusion can be used to guide the installation process during installation, thereby reducing the difficulty of installation.

[0068] See Figures 6 to 8 As shown, the cross-sectional area of ​​the first limiting structure 311 gradually decreases in the axial direction. For the first limiting structure 311 with a protruding structure, the direction of decreasing cross-sectional area is along the direction away from the outer end face of the annular structure 310. That is, the cross-sectional dimension of the first limiting structure 311 is smaller near the inner end of the annular structure 310. When the cup 110 is inserted into the annular structure 310 from the inner end of the middle ring, the small end of the first limiting structure 311 is first inserted into the second limiting structure 111. As the insertion distance of the cup 110 increases, the large end of the first limiting structure 311 is gradually inserted into the second limiting structure 111. This reduces the difficulty of fitting the first limiting structure 311 and the second limiting structure 111 together.

[0069] For the first limiting structure 311 of the groove structure, the cross-sectional area refers to the inner cross-sectional area of ​​the groove, and the direction of decreasing cross-sectional area is along the direction away from the inner end face of the annular structure 310. That is to say, the inner cross-sectional dimension of the first limiting structure 311 is larger near the inner end of the annular structure 310. When the cup 110 is inserted into the annular structure 310 from the inner end of the annular structure 310, the second limiting part is first inserted into the large groove end of the first limiting structure 311. As the insertion distance of the cup 110 increases, the second limiting part is gradually inserted into the small groove end of the first limiting structure 311. The change in the cross-sectional dimension of the first limiting structure 311 is used to guide the insertion, reducing the difficulty of matching the first limiting structure 311 and the second limiting structure 111.

[0070] See Figure 7 As shown, the frame 300 includes bone beam arms 330 located on two radially opposite sides of the annular structure 310. The bone beam arms 330 are used to connect to the headband. The bone beam arms 330 are provided with a bending portion 320 near the circumferential sidewall of the annular structure 310. The bending portion 320 is configured to be able to be bent or flexed.

[0071] By providing a bendable or flexible bending portion 320 between the bone beam arm 330 and the ring structure 310, the angle between the bone beam arm 330 and the ring structure 310 can be easily adjusted by bending the bending portion 320, thereby adapting to the wearing needs of different users.

[0072] See Figures 6 to 8 As shown, the annular structure 310 has a frame mating surface 312 extending circumferentially therein, and the cup 110 has a cup mating surface 112 extending circumferentially therein. When the cup 110 is inserted into the annular structure 310, the frame mating surface 312 and the cup mating surface 112 are in contact to restrict the radial movement of the cup 110.

[0073] It should be noted that the annular structure 310 does not necessarily have to be a circular ring structure. It can also be set as a square ring structure or other forms of annular structure, as long as it can be fitted on the outside of the cup 110 to achieve radial positioning of the cup 110.

[0074] See Figure 2 , Figure 4 as well as Figure 11 As shown, in an implementation where the frame 300 can cover only a portion of the circumferential direction of the connecting portion 116, the frame 300 includes an arch portion 340, which is detachably clamped to the outside of the connecting portion 116. That is, the frame 300 can not only connect to the connecting portion 116 of the bra cup 110 via the annular structure 310, but also adjust the annular structure 310 into an arch-shaped structure with an arch portion 340 to achieve a clamping connection to the connecting portion 116 of the bra cup 110. Compared to the annular structure 310, the arch-shaped structure with an arch portion 340 occupies a smaller area and obstructs the view less.

[0075] See Figure 4 , Figure 11 as well as Figure 12 As shown, one of the bow portion 340 and the cup 110 is provided with a receiving groove 113 extending circumferentially thereon, and the other is provided with a limiting protrusion 341 extending circumferentially thereon. The limiting protrusion 341 cooperates with the receiving groove 113 to limit the axial movement between the bow portion 340 and the cup 110.

[0076] Among them, it can be like Figure 4 , Figure 11 as well as Figure 12 As shown, a limiting protrusion 341 is provided at the bow portion 340, and a receiving groove 113 is provided on the cup 110. The limiting protrusion 341 abuts against the two side walls of the receiving groove 113 on the two opposite end faces in the axial direction, thereby achieving axial limiting between the bow portion 340 and the cup 110 and preventing the bow portion 340 from moving in the axial direction.

[0077] A receiving groove 113 can also be provided at the bow 340, and a limiting protrusion 341 corresponding to the receiving groove 113 can be provided at the cup 110 to achieve axial limiting between the bow 340 and the cup 110.

[0078] See Figure 4 , Figure 11 as well as Figure 12 As shown, the limiting protrusion 341 is provided with a first engaging structure 342 extending axially, and the receiving groove 113 is provided with a second engaging structure 114 extending axially. One of the first engaging structure 342 and the second engaging structure 114 is a slot structure, and the other of the first engaging structure 342 and the second engaging structure 114 is a protrusion structure. The first engaging structure 342 and the second engaging structure 114 are engaged and connected.

[0079] In other words, by connecting the first snap-fit ​​structure 342 with the second snap-fit ​​structure 114, the cup 110 is limited in the circumferential direction, preventing the cup 110 from rotating relative to the arch 340.

[0080] In one embodiment, the first snap-fit ​​structure 342 can be configured as a slot, and the second snap-fit ​​structure 114 can be configured as a protruding structure of the ear. The first snap-fit ​​structure 342 and the second snap-fit ​​structure 114 can be snap-fitted together by inserting the second snap-fit ​​structure 114 into the first snap-fit ​​structure 342.

[0081] Alternatively, the first snap-fit ​​structure 342 can be configured as a protruding structure of the ear, and the second snap-fit ​​structure 114 can be configured as a slot. The first snap-fit ​​structure 342 can be inserted into the second snap-fit ​​structure 114 to achieve snap-fit ​​connection between the first snap-fit ​​structure 342 and the second snap-fit ​​structure 114.

[0082] It is understandable that the bow part 340 can be made of an elastic material so that the bow part 340 can be connected and disassembled with the cup 110 by bending the bow part 340. Alternatively, the main body of the bow part 340 can be made into a rigid structure, with only the first snap-fit ​​structure 342 being made into an elastic structure, using the elastic deformation at the snap-fit ​​point to achieve snap-fit ​​locking and unlocking.

[0083] It is understood that the frame 300 may include only one of the annular structure 310 and the bow 340, or the bow 340 structure may be provided on the frame 300 having the annular structure 310 to improve the reliability of the connection between the frame 300 and the cup 110.

[0084] See Figure 11 As shown, the bow portion 340 is connected to the opposite sides of the bending portion 320. The side of the bending portion 320 away from the bow portion 340 is connected to the bone beam arm 330. The bone beam arm 330 is used to connect to the headband, and the bending portion 320 is constructed with an adjustable bending angle.

[0085] See Figure 6 , Figure 9 as well as Figure 10 As shown, the intermediate component 220 is rotatably connected to the cup 110. The cup 110 is provided with a circumferentially extending third snap-fit ​​structure 115, and the intermediate component 220 is provided with a circumferentially extending fourth snap-fit ​​structure 222. One of the third snap-fit ​​structure 115 and the fourth snap-fit ​​structure 222 is an annular groove, and the other of the third snap-fit ​​structure 115 and the fourth snap-fit ​​structure 222 is a protrusion. The third snap-fit ​​structure 115 and the fourth snap-fit ​​structure 222 snap-fit ​​together, and the axial side of the third snap-fit ​​structure 115 abuts against the fourth snap-fit ​​structure 222. That is, the detachable and rotatable connection between the cup 110 and the intermediate component 220 is achieved through the snap-fit ​​connection of the third snap-fit ​​structure 115 and the fourth snap-fit ​​structure 222.

[0086] It is understandable that... Figure 14 As shown, the third snap-fit ​​structure 115 is configured as an annular groove, while the fourth snap-fit ​​structure 222 is configured as a protrusion. By inserting the fourth snap-fit ​​structure 222 into the third snap-fit ​​structure 115, a rotational connection between the cup 110 and the intermediate piece 220 is achieved.

[0087] Or such as Figure 9 as well as Figure 10 As shown, the third snap-fit ​​structure 115 is set as a protrusion structure, and the fourth snap-fit ​​structure 222 is set as an annular groove. By inserting the third snap-fit ​​structure 115 into the fourth snap-fit ​​structure 222, the rotational connection between the cup 110 and the intermediate piece 220 is achieved.

[0088] The protrusions in the third snap-fit ​​structure 115 and the fourth snap-fit ​​structure 222 can be annular ribs or arc-shaped ribs with a shorter circumferential extension.

[0089] See Figure 14 As shown, the annular rib also has a notch, which reduces the difficulty of snapping the annular rib and makes it easier to connect the intermediate part 220 to the cup 110.

[0090] See Figure 9 , Figure 10 and Figure 15 As shown, the intermediate component 220 includes a first tube 224, a transition section 225, and a second tube 226 connected in sequence. The first tube 224 surrounds the second tube 226 and is inserted into the cup 110. The air inlet pipe 210 is inserted into the second tube 226. An exhaust hole 227 is provided at the transition section 225. The first tube 224 and the second tube 226 form an exhaust channel 228, which is connected to the exhaust hole 227.

[0091] During exhaust, gas flows from the cup 110 into the first tube 224, and is guided through the exhaust channel 228 between the first tube 224 and the second tube 226 to the exhaust hole 227 at the transition section 225, thus achieving gas discharge. Because the intermediate component 220 is directly connected to the cup 110, rather than being connected to the frame 300, gas can directly enter the intermediate component 220 after exiting the cup 110, preventing gas from flowing out through the gap between the cup 110 and the frame 300 or the gap between the frame 300 and the inlet pipe 210.

[0092] In other words, the exhaust mask provided in this application does not require a sealing structure at the frame 300 to seal the gap between the frame 300 and the cup 110, or the gap between the frame 300 and the intake pipe 210. The frame 300 only needs to provide support and installation functions, allowing for a certain fitting gap between the frame 300 and the intermediate part 220, and between the frame 300 and the cup 110. This simplifies the structure of the frame 300 while ensuring a sealing effect, and is beneficial for the miniaturization of the frame 300.

[0093] See Figure 13 As shown, the intake pipe 210 includes a first connector 211 detachably connected to the intermediate member 220 and a second connector 212 for connecting to the ventilation pipe. The first connector 211 and the second connector 212 are in fluid communication and have an included angle between them in the axial direction.

[0094] In other words, the intake pipe 210 can be rotated by rotating the intermediate part 220, thereby adjusting the orientation of the second connector 212 so that the second connector 212 can adapt to ventilation pipes of different directions.

[0095] See Figure 13 as well as Figure 14 As shown, the intermediate component 220 is provided with an axially extending intermediate component positioning part 223, and the intake pipe 210 is provided with an axially extending intake pipe positioning part 213. One of the intermediate component positioning part 223 and the intake pipe positioning part 213 has a groove-like structure, while the other has an outwardly protruding structure. The circumferential side of the intermediate component positioning part 223 abuts against the intake pipe positioning part 213. In other words, by using the protrusion and groove to engage, relative rotation between the intermediate component 220 and the intake pipe 210 is prevented. This avoids the risk of the intake pipe 210 blocking the exhaust port 227 on the intermediate component 220.

[0096] Understandably, the intermediate component positioning part 223 can be configured as a groove-shaped structure, while the intake pipe positioning part 213 can be configured as a protruding structure. By inserting the intake pipe positioning part 213 into the intermediate component positioning part 223, the two opposite sides of the intake pipe positioning part 213 in the circumferential direction are respectively attached to the intermediate component positioning part 223, thus preventing the intake pipe 210 from rotating relative to the intermediate component 220.

[0097] Alternatively, the intermediate positioning part 223 can be configured as a protruding structure, while the intake pipe positioning part 213 can be configured as a groove-shaped structure. By inserting the intermediate positioning part 223 into the intake pipe positioning part 213, the two opposite sides of the intake pipe positioning part 213 in the circumferential direction can be in contact with the intermediate positioning part 223 respectively, thus preventing the intake pipe 210 from rotating relative to the intermediate part 220.

[0098] In some implementations, the pad 120 is integrally formed with or detachably connected to the cup 110. This simplifies the installation and removal of the cup 110 assembly.

[0099] In some implementations, the pad 120 is made of a softer material than the cup 110. For example, the pad 120 could be made of silicone, and the softness of the pad 120 would provide a better wearing experience when it is placed against the face. The cup 110 could be made of a rigid or semi-rigid material, which would provide a more secure connection between the cup 110 frame 300 and the middle member 220.

[0100] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A breathing mask, characterized in that, It includes: A padding assembly, comprising a cup and a padding for contact with a user's face, the padding having a cavity, and the outer end of the cup having an outwardly protruding connecting portion having a connecting hole communicating with the cavity. An air intake assembly, the air intake assembly being in fluid communication with the chamber, the air intake assembly including an air intake pipe and an intermediate component, one side of the intermediate component being inserted into the connecting hole and detachably connected to the cup, and the other side of the intermediate component being detachably connected to the air intake pipe; and A frame comprising an annular structure and / or an arch, the annular structure and / or arch being detachably connected to the circumferential outer wall of the connecting portion and capable of at least covering a portion of the circumferential outer wall of the connecting portion, wherein the side of the annular structure and / or arch away from the air intake assembly is capable of abutting against the outer end of the cup.

2. The breathing mask according to claim 1, characterized in that, The annular structure is sleeved on the circumferential outer side of the connecting part, and the outer end face of the intermediate member presses the annular structure onto the cup to restrict the axial movement of the annular structure.

3. The breathing mask according to claim 2, characterized in that, The outer side of the intermediate component is provided with a flange structure, the outer diameter of the flange structure is larger than the inner diameter of the annular structure, and the inner end face of the flange structure abuts against the outer end face of the annular structure.

4. The breathing mask according to claim 3, characterized in that, The annular structure is provided with a first limiting structure extending along the axial direction, and the cup is provided with a second limiting structure extending along the axial direction. The first limiting structure and the second limiting structure are connected in cooperation to restrict the relative rotation between the annular structure and the cup.

5. The breathing mask according to claim 4, characterized in that, One of the first limiting structure and the second limiting structure is constructed as a groove-shaped structure, and the other of the first limiting structure and the second limiting structure is constructed as a protrusion structure that matches the groove-shaped structure. The cross-sectional area of ​​the groove-shaped structure and the protrusion structure gradually decreases in the axial direction.

6. The breathing mask according to claim 2, characterized in that, The annular structure has a frame mating surface extending circumferentially thereon, and the outer circumferential wall of the connecting part has a cup mating surface extending circumferentially along the cup. When the connecting part is inserted into the annular structure, the frame mating surface fits against the cup mating surface to restrict the radial movement of the cup.

7. The breathing mask according to claim 1, characterized in that, The bow portion can cover a portion of the circumferential outer wall of the connecting portion, and the bow portion is detachably clamped outside the connecting portion.

8. The breathing mask according to claim 7, characterized in that, One of the bow and the cup is provided with a receiving groove extending circumferentially thereon, and the other is provided with a limiting protrusion extending circumferentially thereon. The limiting protrusion cooperates with the receiving groove to restrict axial movement between the bow and the cup.

9. The breathing mask according to claim 8, characterized in that, The limiting protrusion is provided with a first engaging structure extending along the axial direction, and the receiving groove is provided with a second engaging structure extending along the axial direction. One of the first engaging structure and the second engaging structure is a slot structure, and the other of the first engaging structure and the second engaging structure is a block structure. The block structure cooperates with the slot structure to restrict the relative rotation between the bow and the connecting part.

10. The breathing mask according to claim 1, characterized in that, The intermediate component is rotatably connected to the bra cup. The bra cup is provided with a third snap-fit ​​structure extending circumferentially, and the intermediate component is provided with a fourth snap-fit ​​structure extending circumferentially. One of the third snap-fit ​​structure and the fourth snap-fit ​​structure is a rotating groove, and the other of the third snap-fit ​​structure and the fourth snap-fit ​​structure is a rotating protrusion. The third snap-fit ​​structure and the fourth snap-fit ​​structure are snapped together, and the side of the third snap-fit ​​structure along the axial direction abuts against the fourth snap-fit ​​structure.

11. The breathing mask according to any one of claims 1-10, characterized in that, The intermediate component includes a first tube, a second tube, and a transition section connecting the first tube and the second tube. The first tube is inserted into the connecting hole and rotatably connected to the cup. The second tube cooperates with the air inlet pipe. The first pipe surrounds the second pipe, and the inner wall of the first pipe and the outer wall of the second pipe form an exhaust channel. The transition portion is provided with a plurality of exhaust holes, and the exhaust channel is in fluid communication with the plurality of exhaust holes respectively.

12. The breathing mask according to any one of claims 1-10, characterized in that, The intake pipe includes a first connector detachably connected to the intermediate component and a second connector for connecting to a ventilation duct, the first connector and the second connector being in fluid communication and having an included angle between their axial directions.

13. The breathing mask according to claim 12, characterized in that, The intermediate component is provided with an intermediate component positioning part extending along its axial direction, and the first connector is provided with an intake pipe positioning part extending along its axial direction. One of the intermediate component positioning part and the intake pipe positioning part is a groove-shaped structure, and the other of the intermediate component positioning part and the intake pipe positioning part is a protruding structure. The side of the intermediate component positioning part abuts against the intake pipe positioning part in the circumferential direction.

14. The breathing mask according to any one of claims 1-10, characterized in that, The padding is integrally connected to the cup or is detachably connected.

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