Breathing mask

Abstract

The utility model provides a breathing mask, which comprises a main frame, a mask body and a cover plate, the bracket is fixed in the main frame; the elbow assembly is detachably connected to the support and communicates with the main frame; the clamping ring is detachably connected to the support and contained in the main frame, and the clamping ring and the elbow assembly are located at the two ends of the support respectively; the surface pasting sleeve is fixed to the end, away from the support, of the clamping ring, and the outer side of the end, connected with the clamping ring, of the surface pasting sleeve makes contact with the inner circumferential wall of the main frame. Due to the fact that the clamping ring is detachably connected with the support, and the face pasting sleeve is fixed to the clamping ring, the face pasting sleeve can be taken out by disassembling the clamping ring, and disassembling of the face pasting sleeve is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a breathing mask. Background Art

[0002] Wearing a breathing mask as a non-invasive ventilation treatment has been widely used to treat obstructive sleep apnea (OSA), chronic obstructive pulmonary emphysema (COPD), etc. The breathing mask is connected to the ventilator through a tube to deliver continuous pressure ventilation (CPAP) or variable pressure ventilation to the patient's airway, such as bi-level pressure ventilation that changes with the patient's respiratory cycle or automatic pressure-adjusting ventilation that changes with the patient's monitoring situation.

[0003] In the related art, the respiratory mask includes a main frame, and elbows and silicone face stickers respectively connected to both ends of the main frame, wherein the silicone face sticker is directly fixed to the edge of the main frame, for example, the silicone face sticker is bonded to the main frame, or a mounting groove is opened on the main frame, and a protrusion is provided on the silicone face sticker, and the protrusion is interference fit with the mounting groove to achieve fixation between the main frame and the silicone face sticker. These fixing methods will make it difficult to remove the silicone face sticker. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a breathing mask, aiming to solve the problem that the silicone surface sticker of the breathing mask in the related art is difficult to disassemble.

[0005] In order to solve the above technical problems, the utility model provides a breathing mask, comprising:

[0006] The main frame is connected at both ends;

[0007] A bracket, fixed in the main frame;

[0008] An elbow assembly, detachably connected to the bracket, the elbow assembly being connected to the main frame;

[0009] A clamping ring is detachably connected to the bracket and accommodated in the main frame, wherein the clamping ring and the elbow assembly are respectively located at two ends of the bracket; and

[0010] The surface sleeve is fixed to the end of the clamping ring away from the bracket, and the outer side of the end of the surface sleeve connected to the clamping ring contacts the inner peripheral wall of the main frame.

[0011] Optionally, the bracket is provided with a buckle hole, and the clamping ring is provided with a buckle portion, and the buckle portion is buckled into the buckle hole.

[0012] Optionally, the bracket is ring-shaped, and a plurality of the snap-on holes are provided, and the plurality of the snap-on holes are spaced apart along the circumferential direction; a plurality of snap-on parts are provided on the outer side of the snap ring, and the plurality of the snap-on parts are spaced apart along the circumferential direction, and the plurality of the snap-on parts are snapped into the plurality of the snap-on holes one by one.

[0013] Optionally, the main frame is flexible, and the bracket is interference fit with the main frame.

[0014] Optionally, a positioning protrusion is provided at one end of the clamping ring away from the bracket, and a positioning hole is provided on the surface sleeve, and the positioning protrusion is interference fit with the positioning hole.

[0015] Optionally, the surface mount sleeve includes a sleeve portion and a connecting portion fixed to one end of the sleeve portion, the connecting portion is provided with a connecting hole connected to the main frame, and the positioning hole is provided in the connecting portion.

[0016] Optionally, the connecting portion is flexible, and a first limiting portion is provided at one end of the positioning protrusion away from the face-mounted sleeve, and the first limiting portion abuts against a side surface of the connecting portion away from the clamping ring; a second limiting portion is provided on the circumferential side of the clamping ring, and the second limiting portion abuts against a side surface of the connecting portion close to the clamping ring.

[0017] Optionally, the main frame is provided with a positioning groove, and the second limiting portion is assembled in the positioning groove.

[0018] Optionally, there are multiple positioning holes, the multiple positioning holes are spaced apart along the circumferential direction, and the length of each positioning hole extends along the circumferential direction; there are multiple positioning protrusions, the multiple positioning protrusions are spaced apart along the circumferential direction, and the multiple positioning protrusions are assembled in the multiple positioning holes one by one.

[0019] Optionally, the elbow assembly includes an elbow pipe and a pipe joint fixed to one end of the elbow pipe, a snap-fit ​​groove is provided on the outer side of one end of the elbow pipe away from the pipe joint, and a snap-fit ​​portion is provided on the inner circumferential wall of the bracket, and the snap-fit ​​portion is snapped into the snap-fit ​​groove.

[0020] Compared with the related art, the breathing mask in the utility model has the beneficial effect that: because the clamping ring and the bracket are detachably connected, and the face cover is fixed on the clamping ring, the face cover can be removed by removing the clamping ring, which is convenient for removing the face cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the breathing mask provided by the embodiment of the utility model;

[0023] Figure 2 is an exploded view of a breathing mask provided by an embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of a clamping ring in a breathing mask provided by an embodiment of the utility model;

[0025] Figure 4 It is a schematic structural diagram of a middle face cover of a breathing mask provided in an embodiment of the utility model.

[0026] In the accompanying drawings, each figure mark represents: 1. main frame; 11. connecting tube; 111. positioning groove; 2. bracket; 21. snap-fit ​​hole; 22. snap-fit ​​part; 3. elbow assembly; 31. elbow pipe; 311. snap-fit ​​groove; 32. pipe joint; 4. snap ring; 41. snap-fit ​​part; 42. positioning protrusion; 43. first limiting part; 44. second limiting part; 5. surface sleeve; 51. sleeve part; 52. connecting part; 521. positioning hole; 522. connecting hole. DETAILED DESCRIPTION

[0027] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0030] Example:

[0031] See also Figures 1 to 4 The embodiment of the utility model provides a breathing mask, comprising a main frame 1, a bracket 2, an elbow assembly 3, a clamping ring 4 and a face-mounted sleeve 5. The two ends of the main frame 1 are connected; the bracket 2 is fixed in the main frame 1; the elbow assembly 3 is detachably connected to the bracket 2, and the elbow assembly 3 is connected to the main frame 1; the clamping ring 4 is detachably connected to the bracket 2 and accommodated in the main frame 1, and the clamping ring 4 and the elbow assembly 3 are respectively located at the two ends of the bracket 2; the face-mounted sleeve 5 is fixed to the end of the clamping ring 4 away from the bracket 2, and the outer side of the end of the face-mounted sleeve 5 connected to the clamping ring 4 contacts the inner peripheral wall of the main frame 1.

[0032] Since the clamping ring 4 and the bracket 2 are detachably connected, and the face cover 5 is fixed on the clamping ring 4 , the face cover 5 can be removed by removing the clamping ring 4 , which facilitates the removal of the face cover 5 .

[0033] See also Figure 2 and Figure 3 In some embodiments, the detachable connection between the snap ring 4 and the bracket 2 can be a snap connection, for example, the bracket 2 is provided with a snap hole 21, the snap ring 4 is provided with a snap portion 41, and the snap portion 41 is snapped into the snap hole 21; wherein the bracket 2 is annular, and a plurality of snap holes 21 are provided, and the plurality of snap holes 21 are spaced apart along the circumferential direction; a plurality of snap portions 41 are provided on the outer side of the snap ring 4, and the plurality of snap portions 41 are spaced apart along the circumferential direction, and the plurality of snap portions 41 are snapped into the plurality of snap holes 21 one by one. The number of the snap holes 21 and the snap portions 41 is set according to actual needs, for example:

[0034] like Figure 2 and Figure 3 As shown, four snap-fit ​​holes 21 can be provided, and the four snap-fit ​​holes 21 are divided into two groups. The two groups of snap-fit ​​holes 21 are distributed on the opposite sides of the bracket 2, and each group of snap-fit ​​holes 21 is provided with two snap-fit ​​holes 21 distributed at intervals; four buckle parts 41 can be provided, and the four buckle parts 41 are divided into two groups. The two groups of buckle parts 41 are distributed on the opposite sides of the snap ring 4, and each group of buckle parts 41 is provided with two buckle parts 41 distributed at intervals; wherein, the four buckle parts 41 are buckled into the four snap-fit ​​holes 21 one by one, which can improve the connection stability between the snap ring 4 and the bracket 2.

[0035] In other embodiments, the detachable connection between the clamping ring 4 and the bracket 2 may also be a screw connection, a magnetic connection, a threaded connection, etc.

[0036] See also Figure 1 and Figure 2 The main frame 1 is flexible and can be made of a flexible material, such as silicone or rubber; the bracket 2 is interference fit with the main frame 1, specifically, the bracket 2 is embedded in the inner cavity of the main frame 1, which is conducive to ensuring the connection strength between the bracket 2 and the main frame 1. It should be understood that the outer diameter of the bracket 2 is slightly larger than the diameter of the inner cavity of the main frame 1, and the bracket 2 can be forcibly inserted into the inner cavity of the main frame 1 by utilizing the flexibility of the main frame 1, so as to achieve interference fit between the bracket 2 and the main frame 1.

[0037] See also Figure 2 , Figure 3 and Figure 4 , a positioning protrusion 42 is provided at one end of the clamping ring 4 away from the bracket 2, and a positioning hole 521 is provided at the face sleeve 5. The positioning protrusion 42 and the positioning hole 521 are interference fit to achieve the mutual fixation of the clamping ring 4 and the face sleeve 5. Specifically, the face sleeve 5 includes a sleeve portion 51 and a connecting portion 52 fixed to one end of the sleeve portion 51, the connecting portion 52 is provided with a connecting hole 522 connected to the main frame 1, and the positioning hole 521 is provided at the connecting portion 52; the positioning protrusion 42 is provided on the end face of the clamping ring 4, and when the positioning protrusion 42 is embedded in the positioning hole 521, the connecting portion 52 fits with the end face of the clamping ring 4, and the outer peripheral side of the sleeve portion 51 fits with the inner peripheral wall of the main frame 1, which can improve the connection sealing between the bracket 2 and the clamping ring 4, and between the face sleeve 5 and the main frame 1, which is conducive to avoiding gas leakage.

[0038] See also Figure 2 , Figure 3 and Figure 4In some embodiments, there are multiple positioning holes 521, which are spaced apart along the circumference, and the length of each positioning hole 521 extends along the circumference; there are multiple positioning protrusions 42, which are spaced apart along the circumference, and the multiple positioning protrusions 42 are assembled in the multiple positioning holes 521 one by one, which can improve the connection firmness between the clamping ring 4 and the face cover 5. The number of positioning holes 521 and positioning protrusions 42 is set according to actual needs. For example, there are two positioning holes 521 and two positioning protrusions 42, and the two positioning holes 521 are distributed on opposite sides of the face cover 5, and the two positioning protrusions 42 are distributed on opposite sides of the clamping ring 4, and the two positioning protrusions 42 are respectively embedded in the two positioning holes 521.

[0039] It should be noted that since the length of each positioning hole 521 extends in the circumferential direction, that is, the positioning hole 521 is arc-shaped, and the positioning hole 521 is arranged around the connecting hole 522, the length of the corresponding positioning protrusion 42 also extends in the circumferential direction. This arrangement is beneficial to preventing the face cover 5 from rotating relative to the retaining ring 4, thereby avoiding the face cover 5 from shaking easily after wearing the respiratory mask, thereby improving the wearing experience.

[0040] See also Figure 2 , Figure 3 and Figure 4 The connecting portion 52 is flexible, and a first limiting portion 43 is provided at one end of the positioning protrusion 42 away from the face-mounted sleeve 5, and the first limiting portion 43 abuts against a side surface of the connecting portion 52 away from the snap ring 4; a second limiting portion 44 is provided on the peripheral side of the snap ring 4, and the second limiting portion 44 abuts against a side surface of the connecting portion 52 close to the snap ring 4. Specifically, the face-mounted sleeve 5 can be made of a flexible material, such as silicone or rubber; the first limiting portion 43 is an arc-shaped limiting block, and the length of the first limiting portion 43 is greater than the length of the positioning hole 521, so as to ensure that the first limiting portion 43 can abut against a side surface of the connecting portion 52 away from the snap ring 4; the second limiting portion 44 can be a limiting protrusion provided on the peripheral side surface of the snap ring 4. Since the first limiting portion 43 and the second limiting portion 44 are respectively provided on the opposite side surfaces of the connecting portion 52, the face-mounted sleeve 5 can be limited from moving in the axial direction, so as to ensure the connection stability between the snap ring 4 and the face-mounted sleeve 5.

[0041] The number of the first limiting portion 43 and the second limiting portion 44 is set according to actual needs, for example, Figure 3 and Figure 4 As shown, there are two first limiting portions 43, and the two limiting portions are respectively arranged on the two positioning protrusions 42; there are two second limiting portions 44, and the two second limiting portions 44 are distributed on opposite sides of the clamping ring 4, and the two second limiting portions 44 and the two positioning protrusions 42 are staggered.

[0042] See also Figure 1 , Figure 2 and Figure 3 , the main frame 1 is provided with a positioning groove 111, and the second limiting portion 44 is assembled in the positioning groove 111. Specifically, a support tube is fixed to the inner peripheral wall of the main frame 1, and the connecting portion 52 of the face-mounted sleeve 5 is supported by the support tube. The positioning groove 111 is set at one end of the support tube that fits with the face-mounted sleeve 5. Through the mutual cooperation of the second limiting portion 44 and the positioning groove 111, it is possible to achieve a precise fit between the buckle portion 41 and the buckle hole 21, thereby reducing the difficulty of assembling the respiratory mask, and it is also possible to prevent the clamping ring 4 from rotating relative to the main frame 1, thereby improving the connection stability between the clamping ring 4 and the main frame 1. Among them, when the second limiting portion 44 is installed in the positioning groove 111, the positioning portion is flush with the end face of the support tube, which is conducive to a close fit between the clamping ring 4 and the connecting portion 52 of the face-mounted sleeve 5.

[0043] See also Figure 1 , Figure 2 and Figure 3 The elbow assembly 3 includes an elbow tube 31 and a pipe joint 32 fixed to one end of the elbow tube 31. A buckle groove 311 is provided on the outer side of one end of the elbow tube 31 away from the pipe joint 32. A buckle portion 22 is provided on the inner peripheral wall of the bracket 2. The buckle portion 22 buckles into the buckle groove 311. Specifically, the buckle groove 311 is annular, and the buckle groove 311 forms a step groove on the outer side of the elbow tube 31; the buckle portion 22 can be an annular step provided on the inner peripheral wall of the bracket 2. When the elbow tube 31 is installed in the bracket 2, the buckle portion 22 buckles into the buckle groove 311 to achieve a detachable connection between the elbow tube 31 and the bracket 2. It should be understood that the detachable connection between the elbow tube 31 and the bracket 2 can also be a screw connection, a magnetic connection, a threaded connection, etc.

[0044] During the assembly process of the breathing mask, the elbow tube 31 and the bracket 2 are first buckled together, and then the bracket 2 is inserted into the main frame 1 to fix the bracket 2 and the main frame 1. Then, the clamping ring 4 and the bracket 2 are buckled together, and then the face cover 5 is fixed on the clamping ring 4. Finally, the pipe joint 32 is installed on the elbow tube 31 to complete the assembly of the breathing mask.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A breathing mask, characterized in that: include: The main frame is connected at both ends; A bracket, fixed in the main frame; An elbow assembly, detachably connected to the bracket, the elbow assembly being connected to the main frame; A clamping ring is detachably connected to the bracket and accommodated in the main frame, wherein the clamping ring and the elbow assembly are respectively located at two ends of the bracket; and The surface sleeve is fixed to the end of the clamping ring away from the bracket, and the outer side of the end of the surface sleeve connected to the clamping ring contacts the inner peripheral wall of the main frame.

2. The breathing mask according to claim 1, characterized in that The bracket is provided with a buckle hole, and the clamping ring is provided with a buckle part, and the buckle part is buckled into the buckle hole.

3. The breathing mask according to claim 2, characterized in that The bracket is annular, and a plurality of buckle holes are provided, and the plurality of buckle holes are spaced and distributed along the circumferential direction; A plurality of buckle parts are arranged on the outer side of the clamping ring, the plurality of buckle parts are distributed at intervals along the circumferential direction, and the plurality of buckle parts are buckled into the plurality of buckling holes in a one-to-one correspondence.

4. The breathing mask according to claim 3, characterized in that The main frame is flexible, and the bracket is interference fit with the main frame.

5. The breathing mask according to claim 1, characterized in that A positioning protrusion is arranged at one end of the clamping ring away from the bracket, and a positioning hole is arranged at the surface-mounted sleeve, and the positioning protrusion is interference-fitted with the positioning hole.

6. The breathing mask according to claim 5, characterized in that The surface mount sleeve includes a sleeve portion and a connecting portion fixed to one end of the sleeve portion, the connecting portion is provided with a connecting hole connected to the main frame, and the positioning hole is provided in the connecting portion.

7. The breathing mask according to claim 6, characterized in that The connecting portion is flexible, and a first limiting portion is provided at one end of the positioning protrusion away from the surface cover, and the first limiting portion abuts against a surface of one side of the connecting portion away from the clamping ring; A second limiting portion is arranged on the circumferential side of the clamping ring, and the second limiting portion abuts against a side surface of the connecting portion close to the clamping ring.

8. The breathing mask according to claim 7, characterized in that The main frame is provided with a positioning groove, and the second limiting portion is assembled in the positioning groove.

9. The breathing mask according to claim 5, characterized in that There are a plurality of positioning holes, the plurality of positioning holes are spaced apart along the circumferential direction, and the length of each positioning hole extends along the circumferential direction; There are a plurality of positioning protrusions, and the plurality of positioning protrusions are distributed at intervals along the circumferential direction, and the plurality of positioning protrusions are assembled in the plurality of positioning holes in a one-to-one correspondence.

10. The breathing mask according to claim 1, characterized in that The elbow assembly includes an elbow pipe and a pipe joint fixed to one end of the elbow pipe, a buckling groove is provided on the outer side of one end of the elbow pipe away from the pipe joint, and a buckling part is provided on the inner peripheral wall of the bracket, and the buckling part is buckled into the buckling groove.

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