Hasp assembly for a respiratory mask and respiratory mask

Abstract

The utility model relates to a buckle assembly for breathing mask and breathing mask relate ventilation therapy technical field. The utility model discloses a buckle assembly for breathing mask, including for with the frame of breathing mask links to each other's first buckle and for with the headband of breathing mask links to each other's second buckle, wherein, first buckle includes accommodating portion, second buckle includes first connecting portion and support portion, first connecting portion is detachably arranged in accommodating portion, wherein, second buckle can with the part of support portion and first buckle contact as the rotating fulcrum overturn or rotate relative to first buckle, so that first connecting portion is separated from accommodating portion.

Description

Technical Field

[0001] This utility model relates to the field of ventilation therapy technology, and in particular to a buckle assembly for a breathing mask and a breathing mask. Background Technology

[0002] During use, the breathing mask is fixed to the patient's face. Breathing air enters the mask's cavity through the ventilation tubing, providing respiratory therapy to the patient. A breathing mask generally consists of a frame, padding, and headband. The headband secures the frame and its inner padding to the patient's face, ensuring close contact between the padding and the patient's face. During use, the breathing mask may need to be removed or removed. Typically, the headband is separated from the frame, allowing the mask to be removed from the patient's face. Current headbands and frames are connected via hook-and-loop fasteners, requiring overcoming deformation forces during connection and disassembly, making the process relatively laborious. Utility Model Content

[0003] This utility model provides a buckle assembly for a breathing mask and a breathing mask, to solve at least one of the above-mentioned technical problems.

[0004] This utility model provides a buckle assembly for a breathing mask, including a first fastening part for connecting to the frame of the breathing mask and a second fastening part for connecting to the headband of the breathing mask, wherein the first fastening part includes a receiving part, the second fastening part includes a first connecting part and a supporting part, and the first connecting part is detachably disposed in the receiving part.

[0005] The second fastening part can be rotated or flipped relative to the first fastening part with the part where the support part contacts the first fastening part as the pivot point, so that the first connecting part disengages from the receiving part.

[0006] In one embodiment, the first fastening part further includes a stop part and a receiving part, wherein the stop part and the receiving part are connected to each other or the stop part and the receiving part are respectively connected to the frame, and the receiving part is disposed on the receiving part;

[0007] The support portion is constructed as a protrusion located on the first connecting portion;

[0008] When the first connecting part is located in the receiving part, the protrusion is located between the stop part and the receiving part and contacts the stop part or the receiving part. The second fastening part can be flipped or rotated relative to the first fastening part with the part of the protrusion that contacts the stop part or the receiving part as the pivot point, so that the first connecting part is disengaged from the receiving part.

[0009] In one embodiment, the protrusion includes a first protrusion located at the end of the first connecting portion, the first protrusion having a dimension in a first direction greater than the dimension of the first connecting portion and the dimension of the receiving portion, and the first connecting portion having a dimension in the first direction smaller than the dimension of the receiving portion;

[0010] When the first connecting part is located in the receiving part, the first protrusion is located between the stop part and the receiving part and is in contact with the stop part. The second fastening part can be rotated relative to the first fastening part with the part where the first protrusion and the stop part are in contact as the pivot point, so that the first connecting part is disengaged from the receiving part.

[0011] In one embodiment, the protrusion includes a second protrusion located on the side of the first connecting portion, the second protrusion being connected to the first protrusion, and a third protrusion being provided on the receiving portion.

[0012] When the first connecting part is located in the receiving part, the second fastening part can rotate about the axial direction of the first connecting part until the second protrusion contacts the third protrusion, and rotate relative to the first fastening part with the part where the second protrusion contacts the third protrusion as the pivot point, so that the first connecting part disengages from the receiving part.

[0013] In one embodiment, the first connecting portion is configured as a connecting post, and the first protrusion is configured as a spherical protrusion or a columnar protrusion extending radially along the connecting post.

[0014] When the protrusion is a columnar protrusion, the surface of the columnar protrusion that contacts the stop portion is an arc-shaped surface.

[0015] In one embodiment, the second fastening portion further includes a second connecting portion, which is connected to the first connecting portion, and the second connecting portion and the first protrusion are respectively located at both ends of the first connecting portion. The size of the second connecting portion in the first direction is smaller than the distance between the oppositely disposed engaging protrusions.

[0016] In one embodiment, the number of the second protrusions is at least one, the second protrusions extend axially along the first connecting portion, and when the first connecting portion is located in the receiving portion, the second protrusions are located above the receiving portion;

[0017] The third protrusion is located on the inner wall of the receiving portion, and the size of the second protrusion in the first direction is larger than the size of the portion in the receiving portion where the third protrusion is located.

[0018] In one embodiment, the number of the second protrusions is at least two, and each second protrusion extends radially along the connecting post. When the first connecting portion is located in the receiving portion, each second protrusion is located between the first protrusion and the receiving portion.

[0019] The third protrusion is located on the receiving portion and below the receiving portion.

[0020] In one embodiment, the receiving portion includes a receiving hole penetrating the receiving portion, one end of the receiving hole having an opening;

[0021] The first connecting part has a dimension in a first direction that is less than or equal to the diameter of the receiving hole, and the first connecting part can enter the receiving hole through the opening.

[0022] In one embodiment, the receiving portion further includes engaging protrusions located on the sidewall of the receiving hole and disposed opposite to each other in the first direction, wherein the dimension of the first connecting portion in the first direction is greater than the distance between the opposing engaging protrusions.

[0023] The first connecting portion allows the engaging protrusion to deform and enter the receiving hole through the opening.

[0024] In one embodiment, the stop portion is configured as a connecting plate, the receiving portion is configured as a baffle, and the connecting plate is inclined relative to the baffle or the connecting plate and the baffle are perpendicular to each other.

[0025] This utility model also provides a breathing mask, including the above-mentioned buckle assembly for a breathing mask, and further including a frame and a headband, wherein the frame is connected to the first fastening part, and the headband is connected to the second fastening part.

[0026] Compared with the prior art, the advantage of this utility model is that, by utilizing the lever principle, when separating or connecting the first and second fastening parts, the second fastening part can rotate or flip relative to the first fastening part with the point of contact between the supporting part and the first fastening part as the fulcrum of rotation. This allows for easy disengagement or insertion of the first connecting part into the receiving part with a small amount of force. Therefore, the buckle assembly of this utility model for a breathing mask, when applied to a breathing mask, makes the installation and removal of the headband and frame of the breathing mask easier and more convenient for the operator. Attached Figure Description

[0027] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the structure in the prior art where the fastener and frame are connected;

[0029] Figure 2 This is a schematic diagram of a breathing mask worn on a patient's face in an embodiment of the present invention;

[0030] Figure 3 This is a three-dimensional structural schematic diagram of the buckle assembly for a breathing mask in Embodiment 1 of the present invention;

[0031] Figure 4 This is an exploded view of the buckle assembly for a breathing mask in Embodiment 1 of the present invention;

[0032] Figure 5 This is a front view of the buckle assembly for a breathing mask in Embodiment 1 of the present invention;

[0033] Figure 6 This is a cross-sectional view of the buckle assembly for a breathing mask in Embodiment 1 of the present invention;

[0034] Figure 7 This is a schematic diagram of the disassembly process of the buckle assembly for a breathing mask in Embodiment 1 of the present invention;

[0035] Figure 8 This is a three-dimensional structural schematic diagram of the buckle assembly for a breathing mask in Embodiment 2 of the present invention;

[0036] Figure 9 This is an exploded view of the buckle assembly for a breathing mask in Embodiment 2 of the present invention;

[0037] Figure 10 This is a front view of the buckle assembly for a breathing mask in Embodiment 2 of the present invention;

[0038] Figure 11 This is a cross-sectional view of the buckle assembly for a breathing mask in Embodiment 2 of the present invention;

[0039] Figure 12 This is a schematic diagram of the disassembly process of the buckle assembly for a breathing mask in Embodiment 2 of the present invention;

[0040] Figure 13 This is a three-dimensional structural schematic diagram of the buckle assembly for a breathing mask in Embodiment 3 of the present invention;

[0041] Figure 14 This is an exploded view of the buckle assembly for a breathing mask in Embodiment 3 of the present invention;

[0042] Figure 15 This is a schematic diagram of the installation process of the buckle assembly for a breathing mask in Embodiment 3 of the present invention;

[0043] Figure 16 This is a front view of the buckle assembly for a breathing mask in Embodiment 3 of the present invention;

[0044] Figure 17 This is a cross-sectional view of the buckle assembly for a breathing mask in Embodiment 3 of the present invention;

[0045] Figure 18 This is a schematic diagram of the disassembly process of the buckle assembly for a breathing mask in Embodiment 3 of the present invention;

[0046] Figure 19 This is a three-dimensional structural schematic diagram of the buckle assembly for a breathing mask in Embodiment 4 of the present invention;

[0047] Figure 20 This is an exploded view of the buckle assembly for a breathing mask in Embodiment 4 of the present invention;

[0048] Figure 21 This is a front view of the buckle assembly for a breathing mask in Embodiment 4 of the present invention;

[0049] Figure 22 This is a cross-sectional view of the buckle assembly for a breathing mask in Embodiment 4 of the present invention;

[0050] Figure 23 This is a side view of the buckle assembly for a breathing mask in Embodiment 4 of the present invention;

[0051] Figure 24 This is a schematic diagram of the disassembly process of the buckle assembly for a breathing mask in Embodiment 4 of the present invention;

[0052] Figure 25 This is a three-dimensional structural schematic diagram of the buckle assembly for a breathing mask in Embodiment 5 of the present invention;

[0053] Figure 26 and Figure 27 This is an exploded view of the buckle assembly for a breathing mask in Embodiment 5 of the present invention;

[0054] Figure 28 This is a schematic diagram of the installation process of the buckle assembly for a breathing mask in Embodiment 5 of the present invention;

[0055] Figure 29 This is a front view of the buckle assembly for a breathing mask in Embodiment 5 of the present invention;

[0056] Figure 30 This is a cross-sectional view (axial direction) of the buckle assembly for a breathing mask in Embodiment 5 of the present invention;

[0057] Figure 31 This is a cross-sectional view (radial) of the buckle assembly for a breathing mask in Embodiment 5 of the present invention;

[0058] Figure 32 and Figure 33This is a schematic diagram of the disassembly process of the buckle assembly for a breathing mask in Embodiment 5 of the present invention;

[0059] Figure label:

[0060] 1. Hook and loop; 11. Hook and loop opening; 12. Protruding structure; 21. Column;

[0061] 31. First fastening part; 32. Second fastening part;

[0062] 311. Baffle; 316. Connecting plate;

[0063] 310. Receiving part; 312. Receiving hole; 313. Engaging protrusion; 314. Opening; 315. Third protrusion;

[0064] 341, 345, 347, First protrusion;

[0065] 342. First connecting part; 343. Handle; 344. Headband hole;

[0066] 3451. Curved surface; 3452. Protrusion;

[0067] 346. Second connecting part; 348. 349. Second protrusion;

[0068] 30. Frame; 33. Bend; 35. Headband; 36. Padding. Detailed Implementation

[0069] The present invention will be further described below with reference to the accompanying drawings.

[0070] like Figure 1 As shown, in existing breathing masks, the headband and frame are generally connected using a hook-and-loop fastener. The fastener 1 on the headband has a fastener opening 11, the size of which (e.g., diameter) is larger than the size (e.g., diameter) of the protruding post 21 on the frame. A protruding structure 12 is provided on the inner wall of the fastener opening 11, making the size of the fastener opening 11 at the position of the protruding structure 12 smaller than the size of the post 21 on the frame. This allows the fastener to be fixed to the frame and prevents it from detaching. When the fastener needs to be connected to the frame, the force generated by the deformation of the fastener opening 11 must be overcome to connect the fastener 1 to the post 21; similarly, when the fastener needs to be detached from the frame, the force generated by the deformation of the fastener opening 11 must be overcome to detach the fastener 1 from the post 21. Therefore, a certain amount of force is required for both connection and disassembly, making the assembly and disassembly of the headband and frame relatively laborious.

[0071] Example 1

[0072] This invention provides a buckle assembly for a breathing mask, which allows for easy connection and disconnection of the headband and frame of the breathing mask. The user only needs to apply a small amount of force to easily connect or disconnect the headband from the frame.

[0073] Specifically, the buckle assembly of the breathing mask of this invention includes a first fastening part 31 for connecting to the frame 30 of the breathing mask and a second fastening part 32 for connecting to the headband 35 of the breathing mask. The first fastening part 31 may be connected to the frame 30 of the breathing mask, or it may be an integral part of the frame 30. The second fastening part 32 may be connected to the end of the headband 35 of the breathing mask.

[0074] The first fastening part 31 includes a receiving part 310, and the second fastening part 32 includes a first connecting part 342 and a supporting part. The first connecting part 342 is detachably disposed in the receiving part 310.

[0075] The second fastening part 32 can be rotated or flipped relative to the first fastening part 31 with the part of the support part that contacts the first fastening part 31 as the pivot point, so that the first connecting part 342 can be disengaged from the receiving part 310.

[0076] Specifically, such as Figures 3-7 As shown, in this embodiment 1, the first fastening part 31 includes a stopping part and a receiving part, wherein the stopping part and the receiving part are connected to each other or the stopping part and the receiving part are respectively connected to the frame.

[0077] Both the stop and the receiving part can be constructed as plate-like structures. For example, the stop can be constructed as a connecting plate 316, and the receiving part can be constructed as a baffle 311.

[0078] The connecting plate 316 is connected to the baffle 311, and the receiving part 310 is disposed on the baffle 311. The connecting plate 316 can be... Figure 2 A portion of the frame 30 is shown in a simplified manner to illustrate the connection method of the first fastening part 31 and the second fastening part 32.

[0079] The support portion has a protrusion on the first connecting portion 342. When the first connecting portion 342 is located in the receiving portion 310, the first protrusion 341 is located between the connecting plate 316 and the baffle 311 and contacts the connecting plate 316 or the baffle 311. The second fastening portion 32 can be rotated relative to the first fastening portion 31 with the part of the protrusion that contacts the connecting plate 316 or the baffle 311 as the pivot point, so that the first connecting portion 342 is disengaged from the receiving portion 310.

[0080] Specifically, in this embodiment 1, the protrusion includes a first protrusion 341 located at the end of the first connecting portion 342. The size of the first protrusion 341 in the first direction is larger than the size of the first connecting portion 342 and the size of the receiving portion 310, while the size of the first connecting portion 342 in the first direction is smaller than the size of the receiving portion 310. When the first connecting portion 342 is located in the receiving portion 310, the first protrusion 341 is located between the connecting plate 316 and the baffle 311 and is in contact with the connecting plate 316. The second fastening portion 32 can rotate relative to the first fastening portion 31 with the part where the first protrusion 341 is in contact with the connecting plate 316 as the pivot point and the connection point of the connecting plate 316 and the baffle 311 as the axis of rotation, so that the first connecting portion 342 disengages from the receiving portion 310.

[0081] like Figure 3 and Figure 4 As shown, in this embodiment 1, the first connecting portion 342 can be a connecting post, and the protrusion includes a first protrusion 341, which is constructed as a spherical protrusion. The first protrusion 341 is located at the end of the first connecting portion 342 (connecting post), and the diameter of the first protrusion 341 is larger than the diameter of the first connecting portion 342 (connecting post).

[0082] The receiving portion 310 includes a receiving hole 312 that passes through the baffle 311. One end of the receiving hole 312 has an opening 314. The size of the first connecting portion 342 in a first direction (e.g., its radial direction) is less than or equal to the diameter of the receiving hole 312. Therefore, the first connecting portion 342 can enter the receiving hole 312 through the opening 314.

[0083] The receiving portion 310 also includes an engaging protrusion 313 located on the sidewall of the receiving hole 312 and disposed opposite to it in a first direction (e.g., the radial direction of the receiving hole 312). Understandably, due to the engaging protrusion 313 on the inner wall of the receiving hole 312, the diameter of the receiving hole 312 at the location of the engaging protrusion 313 is reduced. The engaging protrusion 313 may be located at the middle part of the receiving hole 312 or at the end of the receiving hole 312, i.e., at the opening 314.

[0084] The dimension (e.g., its diameter) of the first connecting portion 342 in the first direction is greater than the distance between the oppositely disposed engaging protrusions 313. Therefore, it can be understood that the first connecting portion 342 can deform the engaging protrusions 313 and enter the receiving hole 312 through the opening 314, while due to the blocking effect of the engaging protrusions 313, the first connecting portion 342 will not disengage through the opening 314 when no external force is applied. Furthermore, since the size (e.g., its diameter) of the first protrusion 341 in the first direction is larger than the size of the first connecting portion 342 and the size of the receiving hole 312 of the receiving portion 310, when the first connecting portion 342 is inserted into the receiving hole 312, the engaging protrusion 313 is deformed and passes over the engaging protrusion 313, so that it can be inserted into the receiving hole 312; and when the first connecting portion 342 is located in the receiving hole 312, the first protrusion 341 abuts against the side of the receiving hole 312 and prevents the first connecting portion 342 from dislodging from the side of the receiving hole 312, thereby enabling a stable connection to be formed between the first engaging portion 31 and the second engaging portion 32.

[0085] When it is necessary to separate the first engaging part 31 and the second engaging part 32, such as Figure 7 As shown, the second fastening part 32 rotates relative to the first fastening part 31 with the part where the first protrusion 341 contacts the connecting plate 316 as the pivot point and with the connection between the connecting plate 316 and the baffle 311 as the axis of rotation, so that the first connecting part 342 can easily disengage from the receiving hole 312 of the receiving part 310.

[0086] Accordingly, when connecting the first fastening part 31 and the second fastening part 32, the first protrusion 341 contacts the connecting plate 316, and the second fastening part 32 is pressed, so that it rotates relative to the first fastening part 31 with the part of the first protrusion 341 that contacts the connecting plate 316 as the pivot point and the connection point of the connecting plate 316 and the baffle 311 as the axis of rotation, so that the first connecting part 342 can be easily inserted into the receiving hole 312 of the receiving part 310.

[0087] Therefore, it can be seen that this utility model utilizes the lever principle. When separating the first fastening part 31 and the second fastening part 32, the first protrusion 341 at the end of the first connecting part 342 serves as a fulcrum of rotation. The second fastening part 32 flips around this fulcrum, thereby applying a small force to overcome the deformation force of the locking protrusion 313, thus easily disengaging the first connecting part 342 from the receiving part 310. Correspondingly, when connecting the first fastening part 31 and the second fastening part 32, the first protrusion 341 is still used as a fulcrum of rotation. A reverse pressing force is applied to overcome the deformation force of the locking protrusion 313, thereby easily flipping the first connecting part 342 in the opposite direction and inserting it into the receiving part 310. Therefore, the buckle assembly of this utility model, when applied to a breathing mask, makes the installation and removal of the headband 35 and frame 30 of the breathing mask easier, thus facilitating the operator's use.

[0088] like Figure 5 and Figure 6 As shown, the connecting plate 316 can be inclined relative to the baffle 311, that is, there is an angle (e.g., an acute angle) between the connecting plate 316 and the baffle 311. When the first connecting part 342 is located in the receiving hole 312, the first protrusion 341 can contact the connecting plate 316 to play a certain limiting role; and the inclined connecting plate 316 can also guide the first protrusion 341 when connecting the first fastening part 31 and the second fastening part 32, so that the second fastening part 32 can be installed onto the first fastening part 31 more quickly.

[0089] Furthermore, such as Figure 4 As shown, the first connecting part 342 is also connected to the handle 343. The handle 343 can be any structure suitable for operation, and it is provided with a headband hole 344. The headband hole 344 passes through the handle 343, and the headband 35 of the breathing mask can be fixed to the second fastening part 32 through the headband hole 344. When connecting and separating the first fastening part 31 and the second fastening part 32, the connection and separation can be achieved by operating the handle 343 to drive the second fastening part 32 to rotate relative to the first fastening part 31.

[0090] Example 2

[0091] like Figures 8-12 As shown, based on Embodiment 1 above, a modified Embodiment 2 is provided. The following will mainly describe the differences between Embodiment 2 and Embodiment 1 above, while the similarities will not be repeated.

[0092] like Figure 8 and Figure 9As shown, in this embodiment 2, the protrusion includes a first protrusion 345 located at the end of the first connecting portion 342. The first protrusion 345 is configured as a columnar protrusion extending radially along the first connecting portion 342 (connecting post). Figure 12 As shown, the first protrusion 345 includes two protrusions 3452 that protrude radially outward from both sides of the first connecting portion 342.

[0093] The protrusion 3452 makes the size of the first protrusion 345 larger than the diameter of the receiving hole 312 of the receiving portion 310, thus preventing the first connecting portion 342 from coming out of the receiving hole 312.

[0094] Furthermore, such as Figure 10 and Figure 11 As shown, the surface of the first protrusion 345 that contacts the connecting plate 316 is an arc-shaped surface 3451. For example, when the first protrusion 345, which is a columnar protrusion, has a rectangular cross-section, an arc-shaped surface 3451 can be provided at its bottom; when its cross-section is circular, its outer surface is an arc-shaped surface 3451.

[0095] Therefore, it can be seen that when it is necessary to separate the first engaging part 31 and the second engaging part 32, such as Figure 12 As shown, rotating the second fastening part 32 causes the arc-shaped surface 3451 on the columnar protrusion to contact the connecting plate 316. Using the part where the arc-shaped surface 3451 contacts the connecting plate 316 as the pivot point, and using the connection between the connecting plate 316 and the baffle 311 as the axis of rotation, the first connecting part 342 can be easily disengaged from the receiving hole 312 of the receiving part 310.

[0096] Accordingly, when connecting the first fastening part 31 and the second fastening part 32, the arcuate surface 3451 on the columnar protrusion contacts the connecting plate 316, and the second fastening part 32 is pressed down. This causes it to rotate relative to the first fastening part 31, with the point where the arcuate surface 3451 contacts the connecting plate 316 as the pivot point and the connection point between the connecting plate 316 and the baffle 311 as the axis of rotation. This allows the first connecting part 342 to be easily inserted into the receiving hole 312 of the receiving part 310. Therefore, it offers the advantages of easier installation and disassembly, and greater ease of use for the operator.

[0097] Example 3

[0098] like Figures 13-18 As shown, based on Embodiments 1 and 2 above, a modified Embodiment 3 is provided. The following will mainly describe the differences between Embodiment 3 and Embodiments 1 and 2 above, while the similarities will not be repeated.

[0099] like Figures 13-14As shown, the second fastening part 32 also includes a second connecting part 346, which is connected to the first connecting part 342. The second connecting part 346 and the first protrusion 341 are located at the two ends of the first connecting part 342, respectively. The size of the second connecting part 346 in the first direction (e.g., its radial direction) is smaller than the distance between the oppositely arranged engaging protrusions 313.

[0100] Therefore, as Figure 15 As shown, when connecting the first fastening part 31 and the second fastening part 32, since the second connecting part 346 is smaller, it can be directly inserted into the receiving hole 312 through the opening 314 and past the engaging protrusion 313. Then, by pulling the second connecting part 346, the first connecting part 342 enters the receiving hole 312, and the first protrusion 341 abuts against the baffle 311 to complete the connection.

[0101] The structure described in this embodiment 3 makes installation easier because the diameter of the second connecting part 346 is smaller than the diameter of the receiving hole 312 and also smaller than the distance between the two opposing engaging protrusions 313. Therefore, when inserting it into the receiving hole 312, the second connecting part 346 can be placed directly into the receiving hole 312 without effort. That is, the second connecting part 346 can be easily placed into the receiving hole 312 without overcoming the force generated by the deformation of the engaging protrusions 313.

[0102] like Figure 16 and Figure 17 As shown, the second connecting part 346 can be a tapered connecting post with its diameter gradually decreasing in the direction toward the handle 343. The maximum diameter of the second connecting part 346 can be the same as the diameter of the first connecting part 342 in order to form a smooth shape.

[0103] like Figure 18 As shown, when it is necessary to separate the first fastening part 31 and the second fastening part 32, the second fastening part 32 rotates relative to the first fastening part 31 with the part where the first protrusion 341 contacts the connecting plate 316 as the pivot point and with the connection between the connecting plate 316 and the baffle 311 as the axis of rotation, so that the first connecting part 342 can easily disengage from the receiving hole 312 of the receiving part 310.

[0104] Understandably, the method of providing the second connecting portion 346 at the end of the first connecting portion 342 away from the first protrusion 341 described above can be applied to both Embodiment 1 and Embodiment 2. In other words, the first protrusion 341 in this Embodiment 3 can be a spherical protrusion as described in Embodiment 1, or a columnar protrusion as described in Embodiment 2.

[0105] Example 4

[0106] like Figures 19-24 As shown, based on the above embodiments 1, 2, and 3, a modified embodiment 4 is provided. The following mainly describes the differences between this embodiment 4 and the above embodiments 1, 2, and 3, while the similarities will not be repeated.

[0107] like Figure 19 and Figure 20 As shown, in this embodiment 4, the protrusion includes a first protrusion 347 located at the end of the first connecting portion 342. The first protrusion 347 is configured as a disc-shaped protrusion extending radially along the first connecting portion 342 (connecting post).

[0108] Furthermore, such as Figure 21 and Figure 22 As shown, the protrusion also includes a second protrusion 348 located on the side of the first connecting portion 342, and the second protrusion 348 is connected to the first protrusion 347. The number of second protrusions 348 is at least one, and the second protrusion 348 can extend axially along the first connecting portion 342 and protrude radially outward therefrom, such as... Figure 22 and Figure 23 As shown, when the first connecting portion 342 is located in the receiving portion 310, the second protrusion 348 is located above the receiving portion 310.

[0109] Understandably, there can be multiple second protrusions 348. Preferably, there are two second protrusions 348, which can be symmetrically arranged so that the second fastening part 32 can be flipped in the left and right directions respectively.

[0110] The baffle 311 is provided with a third protrusion 315, which is a protrusion structure that protrudes from the side wall of the receiving hole 312. The third protrusion 315 can be located at the end of the receiving hole 312, that is, the end of the opening 314.

[0111] The third protrusion 315 can serve two purposes: firstly, it can engage the protrusion 313 in the above embodiment; secondly, it can contact the second protrusion 348 to form a rotation fulcrum.

[0112] When the first connecting portion 342 is located in the receiving portion 310, the second protrusion 348 is located between the oppositely arranged third protrusions 315. The second fastening portion 32 can rotate about the axis of the first connecting portion 342 until the second protrusion 348 contacts the third protrusion 315, and rotate relative to the first fastening portion 31 with the part where the second protrusion 348 contacts the third protrusion 315 as the pivot point, so that the first connecting portion 342 disengages from the receiving portion 310.

[0113] The size of the first connecting portion 342 in the first direction is larger than the size of the portion where the third protrusion 315 is located in the receiving portion 310. That is, the diameter of the first connecting portion 342 is larger. Therefore, similar to Embodiment 1 above, when the first connecting portion 342 is inserted into the receiving portion 310, the third protrusion 315 will deform, so that the first connecting portion 342 passes over the third protrusion 315 and enters the receiving hole 312.

[0114] Furthermore, the second protrusion 348 is larger in size in the first direction than the portion of the receiving portion 310 where the third protrusion 315 is located. Therefore, when it is necessary to separate the first engaging portion 31 and the second engaging portion 32, as... Figure 24 As shown, the handle 343 can be operated to rotate the first connecting part 342 around its axial direction, and the second protrusion 348 will also rotate accordingly. When the second protrusion 348 rotates to contact the third protrusion 315 on the baffle 311, the second fastening part 32 can rotate relative to the first fastening part 31 with the part where the second protrusion 348 contacts the third protrusion 315 as the pivot point and the axial direction of the first connecting part 342 as the axis of rotation, so that the first connecting part 342 can easily disengage from the receiving hole 312 of the receiving part 310.

[0115] The advantage of the above-described configuration in this embodiment 4 is that when the first fastening part 31 and the second fastening part 32 are separated, the first connecting part 342 rotates around its own axis, so the range of rotation is smaller and less effort is required during operation, making it easier for the operator to operate.

[0116] Furthermore, the first protrusion 347, which is constructed as a disc-shaped protrusion in this embodiment 4, can also be a spherical protrusion as described in embodiment 1 or a columnar protrusion as described in embodiment 2.

[0117] Therefore, in this embodiment 4, the second fastening part 32 described in embodiments 1-3 can also be rotated relative to the first fastening part 31 with the part where the first protrusion 341 contacts the connecting plate 316 as the pivot point and the connection between the connecting plate 316 and the baffle 311 as the axis of rotation, so that the first connecting part 342 can easily disengage from the receiving hole 312 of the receiving part 310.

[0118] Furthermore, in this embodiment 4, the first connecting part 342 can be directly connected to the handle 343, that is, the second connecting part 346 is not provided, or the second connecting part 346 described in the above embodiment 3 can also be provided.

[0119] In this embodiment 4, the connecting plate 316 can be arranged perpendicularly to the baffle 311. Alternatively, in this embodiment 4, the connecting plate 316 can also be arranged obliquely as described in embodiment 1 above.

[0120] Example 5

[0121] like Figures 25-33 As shown, based on the above embodiments 1, 2, and 3, a modified embodiment 5 is provided. The following will mainly describe the differences between this embodiment 5 and the above embodiments 1, 2, and 3, while the similarities will not be repeated.

[0122] like Figure 25 and Figure 26 As shown, in this embodiment 4, the protrusion includes a first protrusion 347 located at the end of the first connecting portion 342. The first protrusion 347 is configured as a disc-shaped protrusion extending radially along the first connecting portion 342 (connecting post).

[0123] Furthermore, such as Figure 27 As shown, the protrusion also includes a second protrusion 349 located on the side of the first connecting portion 342, the second protrusion 349 being connected to the sidewall of the first protrusion 347. There are at least two second protrusions 349, and each second protrusion 349 protrudes radially outward from the outer wall of the first connecting portion 342 (connecting post). Figure 25 , Figure 29 and Figure 30 As shown, when the first connecting portion 342 is located in the receiving portion 310, each of the second protrusions 349 is located between the first protrusion 347 and the baffle 311.

[0124] For example, when there are two second protrusions 349, the two second protrusions 349 are preferably arranged symmetrically about the first connecting part 342 (connecting post) about the axial direction, so that the second fastening parts 32 on the left and right sides of the breathing mask can be disassembled with the same force. Figure 28 , Figure 29 and Figure 31 As shown, the third protrusion 315 is located on the baffle 311 and below the receiving portion 310, and the third protrusion 315 can protrude in a direction away from the baffle 311.

[0125] like Figure 32 and Figure 33As shown, when it is necessary to separate the first fastening part 31 and the second fastening part 32, the handle 343 can be operated to rotate the first connecting part 342 around its axial direction. The second protrusion 349 will also rotate accordingly with the first connecting part 342. When one of the second protrusions 349 rotates to contact the third protrusion 315 on the baffle 311, the second fastening part 32 can rotate relative to the first fastening part 31 with the part where the second protrusion 349 contacts the third protrusion 315 as the pivot point and the axial direction of the first connecting part 342 as the axis of rotation. This allows the first connecting part 342 to easily disengage from the receiving hole 312 of the receiving part 310.

[0126] Understandably, since there are two second protrusions 349, whether the first connecting part 342 is rotated clockwise or counterclockwise, one of the second protrusions 349 can quickly rotate to contact the third protrusion 315 and form a pivot point.

[0127] Since the third protrusion 315 is located below the receiving portion 310 in this embodiment 5, there is no need to provide additional protrusions (such as the engaging protrusion 313 described in embodiment 1) on the inner wall of the receiving hole 312 of the receiving portion 310. On the one hand, the distance between the two second protrusions 349 on the first connecting portion 342 is greater than the diameter of the receiving hole 312, so it can be ensured that the first connecting portion 342 will not come out of the receiving hole 312; on the other hand, since there is no need to provide additional protrusions on the inner wall of the receiving hole 312, it is not necessary to overcome the force generated by the deformation of the protrusions on the inner wall of the receiving hole 312 during installation or disassembly. Therefore, the first connecting portion 342 can be easily disengaged from or inserted into the receiving hole 312 of the receiving portion 310 by applying less force and rotating less. Therefore, this embodiment 5 has the advantages of being more labor-saving and easier to operate.

[0128] Furthermore, the first protrusion 347, which is constructed as a disc-shaped protrusion in this embodiment 5, can also be a spherical protrusion as described in embodiment 1 or a columnar protrusion as described in embodiment 2.

[0129] Therefore, in this embodiment 5, the second fastening part 32 described in embodiments 1-3 can also be rotated relative to the first fastening part 31 with the part where the first protrusion 341 contacts the connecting plate 316 as the pivot point and the connection between the connecting plate 316 and the baffle 311 as the axis of rotation, so that the first connecting part 342 can easily disengage from the receiving hole 312 of the receiving part 310.

[0130] Furthermore, in this embodiment 5, the first connecting part 342 can be directly connected to the handle 343, that is, the second connecting part 346 is not provided, or the second connecting part 346 described in the above embodiment 3 can also be provided.

[0131] In this embodiment 5, the connecting plate 316 can be arranged perpendicularly to the baffle 311. Alternatively, in this embodiment 5, the connecting plate 316 can also be arranged obliquely as described in embodiment 1 above.

[0132] like Figure 2 As shown, this utility model also provides a breathing mask, including a buckle assembly for the breathing mask described in each of the embodiments 1-5 above, and further including a frame 30, a padding 36, a curved tube 33, and a headband 35. The frame 30 is connected to a first fastening part 31, and the headband 35 is connected to a second fastening part 32. By flipping or rotating the second fastening part 32 relative to the first fastening part 31, the connection and separation between the headband 35 and the frame 30 can be easily achieved in a more effortless manner.

[0133] The pad 36 is disposed on the inside of the frame 30 for sealing contact with the patient's face. The pad 36 and the frame 30 can be two separate components or a single integrated component, that is, the pad 36 can be directly integrated into the frame 30.

[0134] The bend 33 is connected to the frame 30 or the liner 36 to deliver positive pressure ventilation gas to the patient. The bend 33 can rotate relative to the frame 30 or the liner 36 to adjust its relative position to the breathing gas generator, allowing the tubing to be matched to the patient's position more conveniently.

[0135] The breathing mask of this utility model can be a full-face mask, a nose mask, or a mouth and nose mask.

[0136] 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 fastening assembly for a breathing mask, characterized in that, It includes a first fastening portion for connecting to the frame of a breathing mask and a second fastening portion for connecting to the headband of the breathing mask, wherein the first fastening portion includes a receiving portion, and the second fastening portion includes a first connecting portion and a supporting portion, and the first connecting portion is detachably disposed in the receiving portion; The second fastening part can be rotated or flipped relative to the first fastening part with the part where the support part contacts the first fastening part as the pivot point, so that the first connecting part disengages from the receiving part.

2. The buckle assembly for a breathing mask according to claim 1, characterized in that, The first fastening part further includes a stop part and a receiving part, wherein the stop part and the receiving part are connected to each other or the stop part and the receiving part are respectively connected to the frame, and the receiving part is disposed on the receiving part; The support portion is constructed as a protrusion located on the first connecting portion; When the first connecting part is located in the receiving part, the protrusion is located between the stop part and the receiving part and contacts the stop part or the receiving part. The second fastening part can be flipped or rotated relative to the first fastening part with the part of the protrusion that contacts the stop part or the receiving part as the pivot point, so that the first connecting part is disengaged from the receiving part.

3. The buckle assembly for a breathing mask according to claim 2, characterized in that, The protrusion includes a first protrusion located at the end of the first connecting portion, the first protrusion having a size in a first direction that is larger than the size of the first connecting portion and the size of the receiving portion, and the first connecting portion having a size in the first direction that is smaller than the size of the receiving portion; When the first connecting part is located in the receiving part, the first protrusion is located between the stop part and the receiving part and is in contact with the stop part. The second fastening part can be rotated relative to the first fastening part with the part where the first protrusion and the stop part are in contact as the pivot point, so that the first connecting part is disengaged from the receiving part.

4. The buckle assembly for a breathing mask according to claim 3, characterized in that, The protrusion includes a second protrusion located on the side of the first connecting portion, the second protrusion being connected to the first protrusion, and a third protrusion being provided on the receiving portion. When the first connecting part is located in the receiving part, the second fastening part can rotate about the axial direction of the first connecting part until the second protrusion contacts the third protrusion, and rotate relative to the first fastening part with the part where the second protrusion contacts the third protrusion as the pivot point, so that the first connecting part disengages from the receiving part.

5. The buckle assembly for a breathing mask according to claim 4, characterized in that, The first connecting part is constructed as a connecting post, and the first protrusion is constructed as a spherical protrusion or a columnar protrusion extending radially along the connecting post; When the protrusion is a columnar protrusion, the surface of the columnar protrusion that contacts the stop portion is an arc-shaped surface.

6. The fastening assembly for a breathing mask according to claim 3 or 4, characterized in that, The second fastening part further includes a second connecting part, which is connected to the first connecting part, and the second connecting part and the first protrusion are respectively located at both ends of the first connecting part. The size of the second connecting part in the first direction is smaller than the distance between the oppositely arranged engaging protrusions.

7. The buckle assembly for a breathing mask according to claim 4, characterized in that, The number of the second protrusions is at least one, and the second protrusions extend axially along the first connecting portion. When the first connecting portion is located in the receiving portion, the second protrusions are located above the receiving portion. The third protrusion is located on the inner wall of the receiving portion, and the size of the second protrusion in the first direction is larger than the size of the portion in the receiving portion where the third protrusion is located.

8. The buckle assembly for a breathing mask according to claim 5, characterized in that, The number of the second protrusions is at least two, and each second protrusion extends radially along the connecting post. When the first connecting portion is located in the receiving portion, each second protrusion is located between the first protrusion and the receiving portion. The third protrusion is located on the receiving portion and below the receiving portion.

9. The buckle assembly for a breathing mask according to claim 3, characterized in that, The receiving portion includes a receiving hole penetrating the receiving portion, and one end of the receiving hole has an opening; The first connecting part has a dimension in a first direction that is less than or equal to the diameter of the receiving hole, and the first connecting part can enter the receiving hole through the opening.

10. The fastening assembly for a breathing mask according to claim 9, characterized in that, The receiving portion further includes engaging protrusions located on the sidewall of the receiving hole and disposed opposite to each other in the first direction. The dimension of the first connecting portion in the first direction is greater than the distance between the opposing engaging protrusions. The first connecting portion allows the engaging protrusion to deform and enter the receiving hole through the opening.

11. The fastening assembly for a breathing mask according to claim 2, characterized in that, The stop part is constructed as a connecting plate, and the receiving part is constructed as a baffle. The connecting plate is inclined relative to the baffle or the connecting plate is perpendicular to the baffle.

12. A breathing mask, comprising a fastening assembly for a breathing mask according to any one of claims 1-11, characterized in that, It also includes a frame and a headband, the frame being connected to the first fastening part and the headband being connected to the second fastening part.

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