Breathing mask and buckle thereof
The snap-fit structure, which combines magnetic attraction and a tilted shell design, solves the problem of mask disengagement during wear, improves wearing stability and normal operation of the ventilator, and is suitable for the treatment of sleep-disordered breathing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SUNNYGRAND HEALTHCARE TECH CO LTD
- Filing Date
- 2025-04-07
- Publication Date
- 2026-05-19
AI Technical Summary
The first and second fastening structures of existing breathing masks are prone to coming undone during wear, especially for patients with larger faces, resulting in unstable connections.
The first and second locking structures employ magnetic attraction, combined with a tilted housing and elastic buckles, to ensure that the second locking structure is connected to the first locking structure in a limited manner. The locking status is monitored by trigger sensors and controllers to control the ventilator's operation.
It effectively prevents the breathing mask from coming off during wear, improves the stability and comfort of wearing, and ensures the normal operation of the ventilator.
Smart Images
Figure CN224251903U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of respiratory mask technology, and in particular to respiratory masks and their clips. Background Technology
[0002] A sleep apnea machine is a medical device used to treat sleep-disordered breathing conditions such as acute respiratory failure and sleep apnea-hypopnea syndrome (SAHS). A sleep apnea machine consists of a ventilator and a breathing mask, with the ventilator connected to the mask via tubing. The breathing mask consists of a support frame and a mask itself, with the mask mounted on the support frame, which is secured to the patient's head via a headband.
[0003] In related technologies, a first fastening structure is provided on the bracket, and a second fastening structure is provided on the headband. The first fastening structure and the second fastening structure are fastened together to achieve the connection between the bracket and the headband.
[0004] However, when patients with larger faces wear a breathing mask, the second fastening structure is prone to tilting away from the first fastening part, which can cause the first and second fastening structures to disengage. Utility Model Content
[0005] Therefore, it is necessary to provide a breathing mask and its buckle to address the problem that the first and second fastening structures are prone to disengagement.
[0006] A fastener for a breathing mask, the fastener comprising:
[0007] The first fastening structure includes a first housing and a first magnet disposed within the first housing. The first housing includes a first top wall and a first side wall surrounding the first top wall. The end of the first side wall away from the first top wall is used for connection with a bracket. Along the direction of the first side wall away from the first top wall, the outer surface of the first side wall is inclined towards the center of the first top wall.
[0008] The second fastening structure includes a second housing and a second magnet disposed within the second housing. The second magnet is capable of engaging with the first magnet. The second housing includes a second top wall and a second side wall surrounding the periphery of the second top wall. The second housing covers the first housing. The second housing is connected to the headband, and the inner surface of the second side wall has the same inclination angle as the outer surface of the first side wall, so that the second side wall and the first side wall are mutually limited along a first direction XX', and the first direction XX' is perpendicular to the extension surface of the first top wall.
[0009] In one embodiment, the tilt angle of the first sidewall is 10 degrees to 89 degrees.
[0010] In one embodiment, the second housing includes a second top wall and a second side wall. The second top wall includes a fastening section and a connecting section connected sequentially along a second direction YY'. The second side wall surrounds the periphery of the end of the fastening section away from the connecting section. The connecting section is used to connect to the headband.
[0011] In one embodiment, the width of the second housing increases sequentially along the third direction ZZ' from the fastening segment to the connecting segment.
[0012] In one embodiment, the second housing is provided with an elastic buckle, and the inner wall of the first housing is provided with a buckle groove. When the elastic buckle is pressed, the elastic buckle can be snapped into the buckle groove.
[0013] In one embodiment, the second housing is provided with elastic buckles on two side walls along the third direction ZZ', and the first housing is provided with buckle grooves on both sides along the third direction ZZ', and the elastic buckles are used to fasten into the corresponding buckle grooves.
[0014] In one embodiment, the elastic buckle includes a pressing part, a rotating shaft, and a hook part. The rotating shaft is slidably connected to the second housing along a third direction ZZ', and the rotating shaft can rotate relative to the second housing. The pressing part is located at the end of the rotating shaft that extends out of the second housing. An elastic element is provided between the pressing part and the second housing. The hook part is located at the end of the rotating shaft that extends into the second housing. The elastic buckle has an unlocked state and a locked state.
[0015] In the unlocked state, the hook is located outside the buckle groove, and along the projection of the third direction ZZ', the projection area of the hook is located within the projection area of the buckle groove;
[0016] In the locked state, the hook is located within the buckle groove, and along the projection of the third direction ZZ', a portion of the projection area of the hook overlaps with a portion of the projection area of the buckle groove.
[0017] A breathing mask includes a mask body, a headband, a support, and a buckle. The mask body is disposed on the support, a first fastening structure is disposed on the support, and a second fastening structure is disposed on the headband.
[0018] In one embodiment, the breathing mask includes:
[0019] A trigger sensor is used to detect whether the first fastening structure and the second snap-fit structure are engaged. The trigger sensor is disposed on the first housing.
[0020] A controller is connected to the trigger sensor signal, and the controller is used to control the ventilator operation according to the signal detected by the trigger sensor.
[0021] In one embodiment, the trigger sensor is a Hall sensor.
[0022] In the aforementioned breathing mask and its buckle, when the second fastening structure approaches the first fastening structure, the second magnet attracts the first magnet, thereby connecting the second fastening structure with the first fastening structure. Simultaneously, since the second housing covers the first housing, and the inner surface of the second sidewall has the same inclination angle as the outer surface of the first sidewall (i.e., along a direction perpendicular to the first top wall), the second housing and the first sidewall mutually limit each other. Therefore, when the first fastening structure is subjected to pressure towards the outer side of the face, the limiting effect of the second housing and the first sidewall prevents the second fastening structure from disengaging from the first fastening structure. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of a breathing mask in one embodiment.
[0024] Figure 2 This is a schematic diagram of the structure when the first and second fastening structures are decomposed in one embodiment.
[0025] Figure 3 This is a schematic diagram of the first fastening structure in one embodiment.
[0026] Figure 4 This is a schematic diagram of the elastic buckle in the unlocked state in one embodiment.
[0027] Figure 5 This is a schematic diagram of the elastic buckle in the locked state in one embodiment.
[0028] Reference numerals: 10, mask body; 20, bracket; 100, first fastening structure; 110, first housing; 111, first side wall; 112, first top wall; 113, fastening groove; 200, second fastening structure; 210, second housing; 211, second side wall; 212, second top wall; 2121, fastening section; 2122, connecting section; 300, elastic buckle; 310, pressing part; 320, rotating shaft; 330, hook part; 340, elastic element; 400, trigger sensor. Detailed Implementation
[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0030] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0031] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0033] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0034] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0035] In related technologies, the first and second fastening structures are connected magnetically. When the second fastening structure is close to the first fastening structure, the two fastening structures can quickly engage to rapidly connect the headband and the support. When wearing a breathing mask, the support is placed on the patient's face, and the headband is wrapped around the back of the patient's head, with both ends connected to the support. The second fastening structure has a fastening section and a connecting section extending from the front to the back of the patient. The fastening section fastens with the first fastening structure, and the connecting section connects to the headband. When a patient with a large face wears the breathing mask, the connecting section is compressed, causing it to tilt outwards relative to the fastening section, thus disengaging the fastening section from the first fastening structure.
[0036] In view of this, this application proposes a buckle for a breathing mask, wherein when the first fastening structure 100 and the second fastening structure 200 are fastened together, the first fastening structure 100 and the second fastening structure 200 are mutually restrained along the first direction XX', thereby preventing the second fastening structure 200 and the first fastening structure 100 from disengaging when the first fastening structure 100 is subjected to a squeezing force towards the outside of the face.
[0037] See Figures 1-3The buckle includes a first engaging structure 100 and a second engaging structure 200. The first engaging structure 100 includes a first housing 110 and a first magnet disposed within the first housing 110. The first housing 110 includes a first top wall 112 and a first side wall 111 surrounding the first top wall 112. One end of the first side wall 111 away from the first top wall 112 is used for connection to a bracket. Along the direction of the first side wall 111 away from the first top wall 112, i.e., the OX direction, the outer surface of the first side wall 111 is inclined towards the center of the first top wall 112. The second engaging structure 200 includes a second housing 210 and a first magnet disposed within the second housing. The second magnet inside 210 can be attracted to the first magnet. The second housing 210 includes a second top wall 212 and a second side wall 211 surrounding the second top wall 212. The second housing 210 covers the first housing 110. The second housing 210 is connected to the headband. The inner surface of the second side wall 211 has the same inclination angle as the outer surface of the first side wall 111, so that the second side wall 211 and the first side wall 111 are mutually limited along the first direction XX'. The first direction XX' is perpendicular to the extension surface of the first top wall 112.
[0038] In this embodiment, the first sidewall 111 has a first end connected to the bracket 20 and a second end away from the bracket 20. The first top wall 112 is disposed at the second end, and the first sidewall 111 surrounds the periphery of the first top wall 112. That is, the first top wall 112 and the first sidewall 111 can be configured to form a first cavity, and the first magnet is disposed in the first cavity.
[0039] When the buckle connects the support 20 of the breathing mask to the headband, i.e., the first fastening structure 100 is set on the support 20 and the second fastening structure 200 is connected to the headband, when the second fastening structure 200 approaches the first fastening structure 100, the second magnet attracts the first magnet, thereby connecting the second fastening structure 200 and the first fastening structure 100. At the same time, since the second housing 210 covers the first housing 110, and the inner surface of the second side wall 211 has the same inclination angle as the outer surface of the first side wall 111, i.e., along the direction perpendicular to the first top wall 112, the second housing 210 and the side wall of the first side wall 111 mutually limit each other. At this time, when the first fastening structure 100 is subjected to a squeezing force towards the outside of the face, the limiting effect of the second housing 210 and the first side wall 111 can prevent the second fastening structure 200 and the first fastening structure 100 from disengaging.
[0040] In some embodiments, the inclination angle of the first sidewall 111 is 10 degrees to 89 degrees.
[0041] In this embodiment, along the direction from the first top wall 112 to the bracket, the first side wall 111 is inclined from the outer periphery of the first top wall 112 toward the center of the first top wall 112, and the inclination angle of the first side wall 111 is 10 degrees to 89 degrees. The direction perpendicular to the first top wall 112 is defined as the first direction XX', that is, the angle between the first side wall 111 and the first direction XX' is 10 degrees to 89 degrees, which is used to limit the second housing 210 and the first side wall 111 to each other along the first direction XX'.
[0042] In some embodiments, the second housing 210 includes a second top wall 212 and a second side wall 211. The second top wall 212 includes a fastening section 2121 and a connecting section 2122 connected sequentially along a second direction YY´. The second side wall 211 surrounds the periphery of the end of the fastening section 2121 away from the connecting section 2122. The connecting section 2122 is used to connect with a headband.
[0043] In this embodiment, the second direction YY' is from the front to the back of the patient. The second sidewall 211 only surrounds the periphery of the fastening section 2121 away from the connecting section 2122, that is, the second housing 210 is a semi-enclosed structure, and the inclination angle of the inner wall of the fastening section 2121 is the same as the inclination angle of the first sidewall 111. When the second housing 210 covers the first housing 110, the connecting section 2122 is first positioned on the first fastening structure 100, and then the second housing 210 is pulled backward along the second direction YY', so that the fastening section 2121 can engage with the first fastening structure 100. That is, the second housing 210 is set as a semi-enclosed structure, which facilitates the second housing 210 to quickly close onto the first housing 110, so that the first magnet and the second magnet can quickly attract each other.
[0044] Furthermore, along the direction from the snap-fit section 2121 to the connecting section 2122, the width of the second housing 210 increases sequentially in the third direction ZZ'.
[0045] In this embodiment, the inner diameter of the end of the snap-fit section 2121 away from the connecting section 2122 is matched with the first housing 110, and along the direction from the snap-fit section 2121 to the connecting section 2122, the width of the second housing 210 increases sequentially in the third direction ZZ', so as to facilitate the quick closing of the second housing 210 onto the first housing 110.
[0046] In some embodiments, the second housing 210 is provided with an elastic buckle 300, and the inner wall of the first housing 110 is provided with a buckle groove 113. When the elastic buckle 300 is pressed, the elastic buckle 300 can be snapped into the buckle groove 113.
[0047] In this embodiment, when a patient needs to wear a breathing mask stably for a long time, the first fastening structure 100 and the second fastening structure 200 are first fastened together, and then the elastic buckle 300 is pressed so that the elastic buckle 300 is fastened into the buckle groove 113, so as to completely lock the first fastening structure 100 and the second fastening structure 200, preventing the patient from accidentally pulling off the headband when making large movements, causing the breathing mask to fall off.
[0048] Furthermore, the second housing 210 is provided with elastic buckles 300 on the two side walls along the third direction ZZ', and the first housing 110 is provided with buckle grooves 113 on both sides along the third direction ZZ'. The elastic buckles 300 are used to snap into the corresponding buckle grooves 113.
[0049] In this embodiment, the third direction ZZ' is perpendicular to both the first direction XX' and the second direction YY'. When the patient puts the breathing mask on their face, the third direction ZZ' is vertical. That is, when the breathing mask is put on, the elastic buckles 300 on the upper and lower sides of the second housing 210 are pressed respectively so that the two elastic buckles 300 are respectively fastened into the corresponding buckle slots 113, thereby completely locking the first fastening structure 100 and the second fastening structure 200.
[0050] Specifically, the elastic buckle 300 includes a pressing part 310, a rotating shaft 320, and a hook part 330. The rotating shaft 320 is slidably connected to the second housing 210 along a third direction ZZ', and the rotating shaft 320 can rotate relative to the second housing 210. The pressing part 310 is located at the end of the rotating shaft 320 that extends out of the second housing 210. An elastic element 340 is provided between the pressing part 310 and the second housing 210. The hook part 330 is located at the end of the rotating shaft 320 that extends into the second housing 210. The elastic buckle 300 has an unlocked state and a locked state; in the unlocked state, it combines with... Figure 4 The hook 330 is located outside the buckle groove 113, and along the projection of the third direction ZZ´, the projection area of the hook 330 is located within the projection area of the buckle groove 113; in the locked state, it is combined with Figure 5 The hook 330 is located within the buckle groove 113, and along the projection of the third direction ZZ´, a portion of the projection area of the hook 330 overlaps with a portion of the projection area of the buckle groove 113.
[0051] In this embodiment, when it is necessary to fully lock the first fastening structure 100 and the second fastening structure 200, the pressing part 310 is first pressed. The pressing part 310 drives the hook part 330 downward through the rotating shaft 320, so that the hook part 330 extends into the fastening groove 113. Then, the pressing part 310 is rotated, and the pressing part 310 drives the hook part 330 to rotate through the rotating shaft 320, so that the hook part 330 hooks with the inside of the fastening groove 113. It should be noted that the opening of the fastening groove 113 is a rectangular opening, and the hook part 330 is a rectangular structure. In the first state, the length direction of the fastening groove 113 is parallel to the length direction of the hook part 330, and the size of the hook part 330 is less than or equal to the size of the opening of the fastening groove 113. That is, along the projection of the third direction ZZ', the projection area of the hook part 330 is located within the projection area of the fastening groove 113. In the second state, the length direction of the snap groove 113 is parallel to the width direction of the hook 330, that is, along the projection of the third direction ZZ´, a part of the projection area of the hook 330 overlaps with a part of the projection area of the snap groove 113, thereby enabling the hook 330 to hook onto the inner wall of the snap groove 113.
[0052] One embodiment of this application provides a breathing mask, including a mask body 10, a headband, a bracket 20, and a buckle. The mask body 10 is disposed on the bracket 20, a first fastening structure 100 is disposed on the bracket 20, and a second fastening structure 200 is disposed on the headband.
[0053] In this embodiment, the headband can be an elastic band, a stretch band, or a strap. When wearing a breathing mask, the support 20 is placed on the patient's face, and the headband is wrapped around the back of the patient's head. The two ends of the headband are respectively connected to the first fastening structures 100 at both ends of the support 20 via the second fastening structure 200.
[0054] In some embodiments, the breathing mask includes a trigger sensor 400 and a controller. The trigger sensor 400 is used to detect whether the first fastening structure 100 and the second snap-fit structure are engaged, and the trigger sensor 400 is disposed on the first housing 110; the controller is signal-connected to the trigger sensor 400, and the controller is used to control the ventilator operation according to the signal detected by the trigger sensor 400.
[0055] In some embodiments, the trigger sensor 400 is a Hall sensor. When the first magnet and the second magnet are attracted, the magnetic field strength between the first magnet and the second magnet changes. The Hall sensor detects that the change in magnetic field strength exceeds a certain threshold, and its output Hall voltage also changes accordingly. This change information can then be transmitted to the controller, which can then determine that the first magnet and the second magnet are attracted, and thus control the ventilator to perform other actions, such as when the ventilator controls the gas supply mechanism to supply gas.
[0056] In some other embodiments, the trigger sensor 400 may also be a reed switch sensor. When the first magnet and the second magnet are attracted together, the magnetic field is enhanced, and the reed in the reed switch is magnetized and attracted under the action of the magnetic field, thereby turning on the circuit connected to the reed switch. This allows the circuit information to be transmitted to the controller, which can then determine that the first magnet and the second magnet are attracted together and control the ventilator to perform other actions, such as turning on the ventilator.
[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0058] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A buckle for a breathing mask, characterized in that, The buckle includes: The first fastening structure (100) includes a first housing (110) and a first magnet disposed within the first housing (110). The first housing (110) includes a first top wall (112) and a first side wall (111) surrounding the first top wall (112). One end of the first side wall (111) away from the first top wall (112) is used for connection with a bracket. Along the direction of the first side wall (111) away from the first top wall (112), the outer surface of the first side wall (111) is inclined towards the center of the first top wall (112). The second fastening structure (200) includes a second housing (210) and a second magnet disposed within the second housing (210). The second magnet is capable of engaging with the first magnet. The second housing (210) includes a second top wall (212) and a second side wall (211) surrounding the second top wall (212). The second housing (210) covers the first housing (110). The second housing (210) is connected to the headband. The inner surface of the second side wall (211) has the same inclination angle as the outer surface of the first side wall (111), so that the second side wall (211) and the first side wall (111) are mutually limited along a first direction XX'. The first direction XX' is perpendicular to the extension surface of the first top wall (112).
2. The buckle of the breathing mask according to claim 1, characterized in that, The inclination angle of the first sidewall (111) is 10 degrees to 89 degrees.
3. The buckle of the breathing mask according to claim 1, characterized in that, The second top wall (212) includes a fastening section (2121) and a connecting section (2122) connected sequentially along the second direction YY´. The second side wall (211) surrounds the periphery of the end of the fastening section (2121) away from the connecting section (2122). The connecting section (2122) is used to connect with the headband.
4. The buckle of the breathing mask according to claim 3, characterized in that, Along the direction from the fastening section (2121) to the connecting section (2122), the width of the second housing (210) increases sequentially in the third direction ZZ'.
5. The buckle of the breathing mask according to claim 1, characterized in that, The second housing (210) is provided with an elastic buckle (300), and the inner wall of the first housing (110) is provided with a buckle groove (113). When the elastic buckle (300) is pressed, the elastic buckle (300) can be fastened into the buckle groove (113).
6. The buckle of the breathing mask according to claim 5, characterized in that, The second housing (210) has elastic buckles (300) on its two side walls along the third direction ZZ' respectively, and the first housing (110) has buckle grooves (113) on both sides along the third direction ZZ' respectively. The elastic buckles (300) are used to fasten into the corresponding buckle grooves (113).
7. The buckle of the breathing mask according to claim 5, characterized in that, The elastic buckle (300) includes a pressing part (310), a rotating shaft (320), and a hook part (330). The rotating shaft (320) is slidably connected to the second housing (210) along a third direction ZZ', and the rotating shaft (320) can rotate relative to the second housing (210). The pressing part (310) is located at the end of the rotating shaft (320) that extends out of the second housing (210). An elastic element (340) is provided between the pressing part (310) and the second housing (210). The hook part (330) is located at the end of the rotating shaft (320) that extends into the second housing (210). The elastic buckle (300) has an unlocked state and a locked state. In the unlocked state, the hook (330) is located outside the buckle groove (113), and along the projection of the third direction ZZ´, the projection area of the hook (330) is located within the projection area of the buckle groove (113); In the locked state, the hook (330) is located in the buckle groove (113), and along the projection of the third direction ZZ', a portion of the projection area of the hook (330) overlaps with a portion of the projection area of the buckle groove (113).
8. A breathing mask, characterized in that, The mask includes a mask body (10), a headband, a support (20), and a buckle for the breathing mask according to any one of claims 1-7. The mask body (10) is disposed on the support (20), the first fastening structure (100) is disposed on the support (20), and the second fastening structure (200) is disposed on the headband.
9. The breathing mask according to claim 8, characterized in that, The breathing mask includes: A trigger sensor (400) is used to detect whether the first fastening structure (100) and the second snap-fit structure are engaged. The trigger sensor (400) is disposed on the first housing (110). A controller is connected to the trigger sensor (400) and is used to control the ventilator operation based on the signal detected by the trigger sensor (400).
10. The breathing mask according to claim 9, characterized in that, The trigger sensor (400) is a Hall sensor.