Respirator sealing structure
By designing a local pressurized sealing structure on the breathing mask, using sealing frame, sealing gasket, inflatable sealing ring and pressurized assembly, the problem of air leakage during wearing the breathing mask is solved, and better sealing and oxygen supply effect are achieved.
Patent Information
- Application Number
- CN202421674463.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-16
AI Technical Summary
When wearing a breathing mask, due to the differences in facial features of different groups of people and the shape of the facial triangle area, air leakage often occurs, resulting in insufficient oxygen supply.
It adopts a partial pressurized seal structure, including a sealing frame, a sealing gasket, an inflatable ring and a pressurized assembly. By adjusting the pressurization assembly, local pressurization can be performed at the leaking position to closely contact the face and prevent air leakage.
It effectively solves the problem of air leakage between the mask and the face, improves sealing, ensures the adequacy of oxygen supply, and is suitable for users with different facial features.
Smart Images
Figure CN222983502U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of respiratory masks, and particularly relates to a sealing structure for a respiratory mask. Background Art
[0002] A respiratory mask consists of a nasal mask, which is composed of a main body, a brow support, an elbow, an elbow cover, a soft pad, a rubber plug, a snap ring, a buckle, a forehead pad, and a headband. When in use, the mask is placed over the nose or both the mouth and nose and is connected to a CPAP or bi-level respiratory therapy device for use.
[0003] The respiratory mask can provide respiratory assistance for patients with respiratory disorders and cardiovascular failure. When the mask is worn, due to differences in facial features among different people and the influence of the shape of the facial triangle area, air leakage often occurs between the mask and the face, resulting in insufficient oxygen supply. Therefore, a sealing structure for a respiratory mask is needed. By adopting a local pressurization sealing method, it can specifically squeeze and seal the air leakage position and is applicable to people with different facial features at the same time. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a sealing structure for a respiratory mask, which can specifically squeeze and seal the air leakage position by adopting a local pressurization sealing method and is applicable to people with different facial features at the same time to solve the above technical problems.
[0005] The technical solution of the utility model for solving the above technical problems is as follows: A sealing structure for a respiratory mask includes a sealing frame fixedly connected to the surface of the respiratory mask: A sealing pad is fixedly connected to the bottom of the sealing frame, an inflatable sealing ring is clamped in the inner cavity of the sealing frame, and four groups of pressurizing components are arranged at the top of the sealing frame. The pressurizing component includes an adjustment chute opened at the top of the sealing frame, an elliptical slider is slidably connected in the inner cavity of the adjustment chute, and a threaded knob is threadedly connected in the inner cavity of the elliptical slider.
[0006] Preferably, limiting blocks are fixedly connected to the front side and the rear side of the elliptical slider, and limiting chutes adapted to the limiting blocks are respectively opened at the front side and the rear side of the inner cavity of the adjustment chute.
[0007] Preferably, four plastic connectors are fixedly connected to the top of the inflatable sealing ring, and the plastic connectors penetrate through the top of the sealing frame and are fixedly connected to the sealing frame.
[0008] Preferably, an intake pipe is communicated with the top of the respiratory mask, a connection pipe head is rotatably connected to the front end of the intake pipe, and the intake pipe is communicated with the connection pipe head.
[0009] Preferably, the sealing pad is L-shaped, and the inflatable sealing ring is located in the inner cavity of the sealing pad.
[0010] Preferably, a rubber pad is fixedly connected to the bottom of the threaded knob, and the rubber pad is pressed against the top of the inflatable sealing ring.
[0011] 1. The beneficial effects of the present utility model are as follows: Through the combined use of the sealing frame and the sealing pad, the bottom of the breathing mask is sealed with the user's face. At the same time, according to the air leakage situation during use, the user can, through the setting of the pressurizing component, squeeze the air leakage position, so that the inflatable sealing ring is in close contact with the user's face, thus achieving the purpose of local pressurization to prevent air leakage and strong sealing performance, and solving the problem that when the mask is worn, due to the differences in facial features of different people and the influence of the shape of the facial triangle area, air leakage often occurs between the mask and the face, resulting in insufficient oxygen supply.
[0012] 2. Through the combined use of the limiting block and the limiting sliding groove in the present utility model, a limiting effect is exerted on the elliptical slider, enabling the elliptical slider to stably be in the inner cavity of the adjusting sliding groove and slide, thereby improving the stability of the elliptical slider and the threaded knob during use.
[0013] 3. Through the setting of the rubber pad in the present utility model, the bottom of the threaded knob is in soft contact with the surface of the inflatable sealing ring, thereby preventing the bottom end of the threaded knob from damaging the surface of the inflatable sealing ring. Description of the Drawings
[0014] Among them:
[0015] Figure 1 is a top view schematic diagram of an embodiment of the present utility model;
[0016] Figure 2 is a three-dimensional schematic diagram of the sealing frame, sealing pad, inflatable sealing ring and pressurizing component of an embodiment of the present utility model;
[0017] Figure 3 is a three-dimensional exploded view of the sealing frame, sealing pad and inflatable sealing ring of an embodiment of the present utility model;
[0018] Figure 4 is an embodiment of the present utility model Figure 3 The partial enlarged view of point A in.
[0019] In the drawings, the list of components represented by each reference numeral is as follows:
[0020] 1. Breathing mask, 2. Sealing frame, 3. Sealing pad, 4. Inflatable sealing ring, 5. Pressurizing component, 51. Adjusting sliding groove, 52. Elliptical slider, 53. Threaded knob, 54. Limiting block, 55. Limiting sliding groove, 6. Plastic connecting piece, 7. Air inlet pipe, 8. Connecting pipe head, 9. Rubber pad. Detailed Embodiments
[0021] In the following, embodiments of the breathing mask sealing structure of the present utility model will be described with reference to the accompanying drawings.
[0022] Figures 1-4 A breathing mask sealing structure showing an embodiment of the present utility model includes a sealing frame 2 fixedly connected to the surface of a breathing mask 1. An air inlet pipe 7 is connected to the top of the breathing mask 1. The front end of the air inlet pipe 7 is rotatably connected to a connecting pipe head 8, and the air inlet pipe 7 and the connecting pipe head 8 are connected and communicated. A sealing gasket 3 is fixedly connected to the bottom of the sealing frame 2. The sealing gasket 3 is L-shaped. An inflatable sealing ring 4 is located in the inner cavity of the sealing gasket 3. The inflatable sealing ring 4 is clamped in the inner cavity of the sealing frame 2. Four plastic connectors 6 are fixedly connected to the top of the inflatable sealing ring 4. The plastic connectors 6 penetrate through the top of the sealing frame 2 and are fixedly connected to the sealing frame 2. Four groups of pressurizing components 5 are arranged on the top of the sealing frame 2. The pressurizing component 5 includes an adjustment chute 51 opened on the top of the sealing frame 2. An elliptical slider 52 is slidably connected in the inner cavity of the adjustment chute 51. Limiting blocks 54 are fixedly connected to the front side and the rear side of the elliptical slider 52. Limiting chutes 55 adapted to the limiting blocks 54 are opened on the front side and the rear side of the inner cavity of the adjustment chute 51. By the cooperation of the limiting blocks 54 and the limiting chutes 55, the elliptical slider 52 is limited, so that the elliptical slider 52 can be stably located in the inner cavity of the adjustment chute 51 and can slide, thereby improving the stability of the elliptical slider 52 and the threaded knob 53 during use. A threaded knob 53 is threadedly connected in the inner cavity of the elliptical slider 52. A rubber pad 9 is fixedly connected to the bottom of the threaded knob 53. The rubber pad 9 is pressed against the top of the inflatable sealing ring 4. Through the setting of the rubber pad 9, the bottom of the threaded knob 53 is in soft contact with the surface of the inflatable sealing ring 4, thereby preventing the bottom end of the threaded knob 53 from damaging the surface of the inflatable sealing ring 4.
[0023] Working principle: When the present utility model is in use, the user wears the breathing mask 1 on the face, so that the sealing gasket 3 fits on the face. Then the user connects the oxygen supply device to the connecting pipe head 8 and fills a certain concentration of oxygen into the inside of the breathing mask 1 for oxygen inhalation. At this time, the user can observe the air leakage position between the breathing mask 1 and the face. Then the threaded knob 53 is slid, and the threaded knob 53 drives the elliptical slider 52 to slide in the inner cavity of the adjustment chute 51 until the elliptical slider 52 moves to the air leakage position. Then the user rotates the threaded knob 53. During the rotation of the threaded knob 53, through the action of the threads on its surface, the rubber pad 9 is driven to push downward, and then the inflatable sealing ring 4 is locally extruded, so that the inflatable sealing ring 4 undergoes a short displacement in the inner cavity of the sealing frame 2, causing extrusion on the sealing gasket 3, so that the local position of the sealing gasket 3 can fit more tightly on the face, thereby preventing air leakage. The above sealing method can be adjusted according to the face shape of the user, and can also be adjusted secondly during the actual use process to ensure the best sealing effect of the breathing mask 1 during use.
[0024] In summary, for the breathing mask sealing structure, through the combined use of the sealing frame 2 and the sealing gasket 3, the bottom of the breathing mask 1 and the user's face are sealed. At the same time, according to the air leakage situation during use, the user can, through the setting of the pressurizing component 5, squeeze the air leakage position, so that the inflatable sealing ring 4 is in close contact with the user's face, thus achieving the purposes of local pressurization to prevent air leakage and strong sealing performance, and solving the problem that when the mask is worn, due to the differences in facial features among different people and the influence of the shape of the facial triangle area, air leakage often occurs between the mask and the face, resulting in insufficient oxygen supply.
Claims
1. A breathing mask sealing structure, characterized in that: The invention comprises a sealing frame (2) fixedly connected to the surface of a breathing mask (1): a sealing pad (3) is fixedly connected to the bottom of the sealing frame (2); an inflatable sealing ring (4) is engaged in the inner cavity of the sealing frame (2); four groups of pressurizing components (5) are arranged on the top of the sealing frame (2); the pressurizing components (5) comprise an adjusting slide groove (51) opened on the top of the sealing frame (2); an elliptical slider (52) is slidably connected to the inner cavity of the adjusting slide groove (51); and a threaded knob (53) is threadedly connected to the inner cavity of the elliptical slider (52).
2. A breathing mask sealing structure according to claim 1, characterized in that: The front and rear sides of the elliptical slider (52) are fixedly connected to the limit block (54), and the front and rear sides of the inner cavity of the adjustment slide groove (51) are provided with limit slide grooves (55) adapted to the limit block (54).
3. A breathing mask sealing structure according to claim 2, characterized in that: Four plastic connectors (6) are fixedly connected to the top of the inflatable sealing ring (4), and the plastic connectors (6) penetrate to the top of the sealing frame (2) and are fixedly connected to the sealing frame (2).
4. A breathing mask sealing structure according to claim 3, characterized in that: The top of the breathing mask (1) is connected to an air intake pipe (7), the front end of the air intake pipe (7) is rotatably connected to a connecting pipe head (8), and the air intake pipe (7) and the connecting pipe head (8) are in communication.
5. A breathing mask sealing structure according to claim 4, characterized in that: The sealing pad (3) is L-shaped, and the inflatable sealing ring (4) is located in the inner cavity of the sealing pad (3).
6. A breathing mask sealing structure according to claim 5, characterized in that: The bottom of the threaded knob (53) is fixedly connected to a rubber pad (9), and the rubber pad (9) is pressed onto the top of the inflatable sealing ring (4).