Breathing mask and breathing equipment

Abstract

The utility model discloses a breathing mask and breathing equipment, the breathing mask comprises a face frame and a noise reduction sheet, the face frame is provided with an air inlet and an air outlet, the noise reduction sheet is arranged at the air outlet, the noise reduction sheet is a metal sheet, and the noise reduction sheet is provided with a plurality of noise reduction holes arranged at intervals. The noise reduction piece can be a metal piece, and a plurality of noise reduction holes are formed in the noise reduction piece at intervals. The noise reduction sheet made of the metal material is higher in strength, the noise reduction holes formed in the noise reduction sheet can be denser, and airflow can be dispersed through the noise reduction holes in the noise reduction sheet when passing through the noise reduction sheet, so that the airflow resistance is reduced, the airflow noise is reduced, and the use comfort is improved. And the metal sheets are not easy to age and damage, so that the stability of the noise reduction effect can be ensured.

Description

Technical Field

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

[0002] The typical structure of a respiratory mask includes components such as a frame, a cushion, a connecting tube and a headband. The cushion is fixed to the frame, and the cushion and the frame together form a gas chamber. The connecting tube is connected to the frame to transport the gas into the gas chamber, and the headband is connected to the user's head to fix the respiratory mask in a suitable position on the user's head. When in use, the cushion contacts the user's face and achieves a seal with the face, and the user's mouth and / or nose is located in the gas chamber. The existing respiratory masks use noise reduction hole technology, which usually directly opens holes on the plastic frame shell. The air resistance is large when the airflow is discharged, and the noise reduction effect is not ideal. Utility Model Content

[0003] The main purpose of the utility model is to provide a breathing mask and a breathing device, aiming at improving the noise reduction effect.

[0004] To achieve the above-mentioned purpose, the utility model proposes a breathing mask, which includes a face frame and a noise reduction sheet. The face frame is provided with an air inlet and an air outlet. The noise reduction sheet is arranged at the air outlet. The noise reduction sheet is a metal sheet, and a plurality of noise reduction holes arranged at intervals are opened on the noise reduction sheet.

[0005] In one embodiment, the noise reduction holes are circular holes, the noise reduction holes are evenly distributed on the noise reduction sheet, and the apertures of the noise reduction holes are 0.2 mm to 0.6 mm.

[0006] In one embodiment, the thickness of the noise reduction sheet is 0.1 mm to 0.4 mm.

[0007] In one embodiment, the noise reduction sheet is a stainless steel sheet.

[0008] In one embodiment, the number of the air outlets is two, and the two air outlets are respectively arranged on both sides of the air inlet.

[0009] In one embodiment, the width of the air outlet is gradually reduced in a direction away from the air inlet.

[0010] In one embodiment, an edge of the noise reduction sheet is embedded in the face frame.

[0011] In one embodiment, the face frame includes a panel and a surrounding plate, wherein the surrounding plate is connected to the outer edge of the panel, and the panel is an outwardly convex arc plate.

[0012] In one embodiment, a mounting groove is provided on the enclosure.

[0013] In addition, the utility model also provides a breathing device, which includes a respirator and the breathing mask as described above, wherein the air outlet of the respirator is connected to the air inlet of the breathing mask through a pipeline.

[0014] In the technical solution of the utility model, the noise reduction mask includes a noise reduction sheet and a face frame, and the noise reduction sheet is provided with noise reduction holes. The noise reduction sheet can be a metal piece, and a plurality of noise reduction holes arranged at intervals are provided on the noise reduction sheet. The noise reduction sheet made of metal material used in the present application has higher strength, and the noise reduction holes provided on the noise reduction sheet can be more dense. When the airflow passes through the noise reduction sheet, the airflow can be dispersed through the noise reduction holes above, thereby helping to reduce the airflow resistance, reduce the airflow noise, and improve the comfort of use. In addition, the metal sheet is not easy to age or break, and can ensure the stability of the noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the structure of a breathing mask in an embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the disassembled structure of the breathing mask in the embodiment of the utility model.

[0018] Description of Figure Numbers:

[0019]

[0020] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] The present application provides a breathing mask 100, such as Figure 1 and Figure 2 As shown, the breathing mask 100 includes a face frame 10, a noise reduction sheet 20, a connecting tube and a headband. The face frame 10 encloses a gas chamber. An air inlet 11 and an air outlet 12 are provided on the face frame 10. One end of the connecting tube is connected to the air inlet 11, and the other end of the connecting tube is used to connect with the respirator. The noise reduction sheet 20 is arranged at the air outlet 12, and the headband is used to connect with the user's head to fix the breathing mask 100 at a suitable position on the user's head. When in use, the edge of the face frame 10 contacts the user's face and achieves a seal with the face, and the user's mouth and / or nose is located in the gas chamber. The respirator delivers gas to the user through the connecting tube, and when the user exhales, the airflow flows out from the noise reduction hole 21 on the noise reduction sheet 20.

[0027] The present application mainly improves the structure of the face frame 10. Specifically, in the present application, the face frame 10 is a plastic part, and the edge of the face frame 10 is made of a flexible material, and the material can be a flexible material known to those skilled in the art. For example, the edges of the face frame 10 are all formed of flexible materials such as TPU PLA soft resin, which improves the sealing when in contact with the user's face and reduces air leakage, while enhancing the wearing comfort.

[0028] The noise reduction sheet 20 can be a metal part. Metal usually has good acoustic properties and can effectively absorb and reflect sound waves to achieve the effect of noise reduction. In addition, the metal material has high strength and stability, which can ensure that the noise reduction sheet 20 maintains stable noise reduction performance during long-term use. A plurality of noise reduction holes 21 are provided on the noise reduction sheet 20. The noise reduction sheet 20 made of metal in the present application has higher strength, and the noise reduction holes 21 provided on the noise reduction sheet 20 can be denser. When the airflow passes through the noise reduction sheet 20, the airflow can be dispersed through the noise reduction holes 21 above, thereby reducing the airflow resistance, reducing the airflow noise, and improving the comfort of use. In addition, the metal sheet is not easy to age or break, which can ensure the stability of the noise reduction effect.

[0029] Specifically, the noise reduction sheet 20 can be a stainless steel sheet. Stainless steel has the characteristics of being resistant to weakly corrosive media such as air, steam, and water, and even resistant to chemically corrosive media (acids, alkalis, salts, and other chemical erosions). Therefore, in practical applications, drugs or anesthetics can be added to the transported gas to improve the application range of the breathing mask 100. In order to ensure the cleanliness of the breathing mask 100 and avoid the contamination of the breathing mask 100 leading to respiratory infection of the user, the breathing mask 100 needs to be cleaned and disinfected regularly. Obviously, the noise reduction sheet 20 made of stainless steel can resist the corrosion of detergents and disinfectants.

[0030] In practical applications, the noise reduction sheet 20 can be made of stainless steel, stainless steel, chromium stainless steel, chromium-nickel stainless steel, chromium-manganese-nitrogen stainless steel, etc.

[0031] The noise reduction holes 21 may be round holes, which are a common shape of noise reduction holes 21. The round holes can evenly disperse the airflow when it passes through, thereby reducing the generation of turbulence and noise. The noise reduction holes 21 are evenly distributed on the noise reduction sheet 20, which helps to ensure that the airflow can be evenly dispersed when it passes through the noise reduction sheet 20, thereby more effectively reducing the airflow noise.

[0032] Since the noise reduction sheet 20 is a metal sheet with high strength, the aperture of the noise reduction hole 21 can be set smaller. For example, the aperture of the noise reduction hole 21 is .mm to .mm. Avoid the aperture of the noise reduction hole 21 being too large, so that airflow noise occurs when the airflow passes through the noise reduction hole 21. At the same time, avoid the aperture being too small to ensure that the airflow can pass smoothly. It can be understood that the smaller the aperture of the noise reduction hole 21, the denser the distribution of the noise reduction holes 21 on the noise reduction sheet 20; the larger the aperture of the noise reduction hole 21, the sparser the distribution of the noise reduction holes 21 on the noise reduction sheet 20. Ensure the total effective connection area, realize the timely discharge of gas, and avoid the discomfort caused by the obstruction of airflow due to too small aperture or too sparse distribution.

[0033] As mentioned above, the noise reduction holes 21 can be evenly distributed on the entire noise reduction sheet 20 to ensure that the airflow can be evenly dispersed when passing through the noise reduction sheet 20, reducing the airflow noise, especially when the area of ​​the noise reduction sheet 20 is large, it can provide a more stable noise reduction effect. The noise reduction holes 21 are arranged according to certain rules. In practical applications, the noise reduction holes 21 can adopt a row and column arrangement structure, and the row spacing and column spacing can be set equal. It can be understood that the noise reduction holes 21 can also be arranged in other ways, and the present invention does not limit this.

[0034] In some other embodiments, the noise reduction holes 21 may be distributed more densely in certain key areas of the noise reduction sheet 20, such as near the user's mouth and nose, thereby providing a more efficient noise reduction effect for specific areas, which is particularly suitable for scenarios where noise reduction needs to be focused on.

[0035] The noise reduction holes 21 can also be designed as a multi-layer structure, and the distribution and aperture of each layer of noise reduction holes 21 can be different. By arranging the noise reduction holes 21 at multiple levels, the noise reduction effect can be further improved and the control of the airflow can be optimized.

[0036] The noise reduction holes 21 can also be arranged in a specific direction or angle to guide the direction and flow path of the airflow. This arrangement helps to reduce airflow turbulence and noise generation while maintaining the smoothness of the airflow.

[0037] On the noise reduction sheet 20, the aperture size of the noise reduction hole 21 can be gradually changed to meet the noise reduction requirements of different areas. By adjusting the aperture size, a balance between noise reduction effect and airflow control can be achieved, thereby improving the overall comfort of use.

[0038] In some other embodiments, the noise reduction sheet 20 may have noise reduction holes 21 of two or more apertures. By arranging and combining the noise reduction holes 21 of two or more apertures, a balance between noise reduction effect and airflow control is achieved, thereby improving the overall comfort of use. For example, when there are noise reduction holes 21 of two apertures, the large-aperture noise reduction holes 21 are arranged in an array on the noise reduction sheet 20, with two rows and two columns of four large-aperture noise reduction holes 21 as a unit, and the small-aperture noise reduction sheet 20 is located at the center of the unit. The large-aperture noise reduction holes 21 arranged in a large array can form an effective airflow channel, ensure the uniform distribution and smooth flow of airflow, and reduce the problem of airflow obstruction caused by too small an aperture. The small-aperture noise reduction holes 21 can further disperse the airflow and fine-tune the airflow to avoid excessive or too small local airflow, thereby achieving a balance in airflow control and reducing airflow noise. By combining the use of noise reduction holes 21 with different apertures, the noise reduction effect can be optimized, which helps to reduce the user's discomfort caused by poor airflow or excessive noise and improves the overall comfort of use.

[0039] In some other embodiments, the shape of the noise reduction hole 21 can also be a long hole, a square hole, a polygonal hole (such as a square, rectangle, hexagon, etc.) or an irregular hole (such as a star, ellipse, etc.), and two or more shapes of noise reduction sheets 20 can be used on the noise reduction sheet 20 for combination arrangement. The present application does not limit the shape of the noise reduction hole 21.

[0040] Since the noise reduction sheet 20 in the present application is a metal sheet, the noise reduction holes 21 can be formed by etching, micro drilling, laser drilling, electric spark drilling, or stamping, which can achieve higher processing accuracy and smaller apertures.

[0041] Furthermore, there are two air outlets 12, which are arranged on both sides of the air inlet 11. The two noise reduction sheets 20 are provided with noise reduction holes 21, so that the airflow is discharged from both sides, which can effectively disperse the airflow. When the gas enters the mask from the air inlet 11, passes through the respiratory tract and is then discharged from the air outlet 12, if there is only one air outlet 12, the airflow may be more concentrated, which is prone to noise and discomfort. The design of the two air outlets 12 can disperse the airflow and reduce the collision of the airflow, thereby reducing noise and improving the comfort of the wearer. In practical applications, the two noise reduction sheets 20 can be symmetrically arranged about the air inlet 11.

[0042] At the same time, the design of the air outlets 12 on both sides can also provide better wearing comfort, because it can prevent the airflow from directly impacting the wearer's face and reduce discomfort. In addition, this design also helps to maintain the balance of air flow in the mask, ensuring that the wearer can get enough oxygen during breathing.

[0043] In other embodiments, the air outlet 12 may also be disposed above the air inlet 11, closer to the mouth and nose. Disposing the air outlet 12 near the mouth and nose helps to discharge the exhaled gas more directly. This helps to maintain air circulation inside the mask and prevents carbon dioxide or other exhaled gases from accumulating in the mask. For users who need to wear the mask for a long time, this design can improve breathing comfort and efficiency. In addition, the design of the air outlet 12 near the mouth and nose helps to reduce noise. Since the air outlet 12 is closer to the breathing source, the airflow may be smoother when discharged, reducing the turbulence and collision of the airflow inside the mask, thereby reducing the noise level.

[0044] It should be noted that when the air outlet 12 is disposed above the air inlet 11 , the position of the air outlet 12 needs to be precisely designed to ensure that the discharged air flow does not directly blow toward the eyes or face of the user, causing discomfort.

[0045] The thickness of the noise reduction sheet 20 will affect the noise reduction effect. A thicker noise reduction sheet 20 usually has better structural stability and rigidity, and can better resist the impact and vibration of the airflow, thereby more effectively reducing the generation of noise. At the same time, a thicker noise reduction sheet 20 can also more effectively absorb and disperse sound waves and reduce the propagation of noise. The thickness of the noise reduction sheet 20 is not the thicker the better. An overly thick noise reduction sheet 20 may increase the weight of the mask and reduce the comfort of the wearer. In addition, an overly thick noise reduction sheet 20 may also increase the resistance of the airflow through the noise reduction hole 21, affecting the smoothness of breathing. Therefore, when selecting the thickness of the noise reduction sheet 20, it is necessary to comprehensively consider factors such as the noise reduction effect, the weight of the mask and the smoothness of breathing. In this application, the thickness of the noise reduction sheet 20 is 0.1mm to 0.4mm. To balance the noise reduction effect and wearing comfort.

[0046] Since the noise reduction sheet 20 and the face frame 10 are made of different materials, they each have unique physical and chemical properties. The noise reduction sheet 20 may be made of a material with excellent sound absorption and noise reduction performance, while the face frame 10 may be made of a light, strong and easy to shape material. By embedding the edge of the noise reduction sheet 20 into the face frame 10, the two materials can be closely combined, thereby giving full play to their respective advantages.

[0047] This design helps to enhance the connection stability between the noise reduction sheet 20 and the face frame 10 and the sealing performance of the connection. Since the noise reduction sheet 20 is firmly embedded in the face frame 10, it can prevent the noise reduction sheet 20 from shifting or falling off during wearing, thereby ensuring the stability and comfort of the mask. In addition, it is difficult for the airflow to overflow from the gap between the noise reduction sheet 20 and the face frame 10. This can not only improve the noise reduction effect of the mask, but also prevent harmful gases or particles from the outside from entering the mask through the gap, thereby protecting the wearer's respiratory system.

[0048] For example, the noise reduction sheet 20 and the face frame 10 can be formed into a whole by insert injection molding, in which the noise reduction sheet 20 is placed in the mold as an insert, and during injection molding, the fluid flows to the positioning holes on the noise reduction sheet 20 and solidifies to form positioning columns, thereby achieving a tight combination of the noise reduction sheet 20 and the face frame 10. This method not only ensures the firmness of the connection, but also improves production efficiency.

[0049] In other embodiments, a receiving groove may be provided at the edge of the air outlet 12, and the edge of the noise reduction sheet 20 may be removably inserted into the receiving groove. The removable insertion into the receiving groove provides greater flexibility. When the noise reduction sheet 20 needs to be cleaned or replaced, it can be easily removed and reinstalled, thereby reducing maintenance costs. At the same time, this fixing method is also convenient for replacing noise reduction sheets 20 of different specifications according to different needs.

[0050] In addition, hot pressing and ultrasonic connection are also effective fixing solutions. Hot pressing connection heats the contact surface of the noise reduction sheet 20 and the face frame 10 to melt and penetrate each other to form a strong connection; while ultrasonic connection uses the energy generated by high-frequency vibration to melt the contact surface of the two materials and connect them together. Both methods have high connection strength and stability.

[0051] In some embodiments, the face frame 10 includes a panel 13 and a panel 14, wherein the panel 14 is connected to the outer edge of the panel 13, and the panel 13 is an outward convex arc plate. The panel 13 is an outward convex structure as a whole, which can increase the volume of the gas chamber. Compared with the traditional flat or concave design, it can provide more space for the airflow, which is conducive to the smooth flow of the airflow, reduce the airflow resistance and turbulence, and thus reduce the noise. The panel 14 can further increase the volume of the gas chamber and provide a necessary gap between the user's face and the panel 13, so as to avoid giving the user a sense of oppression or discomfort and improve the comfort of use.

[0052] The enclosure 14 is provided with a mounting groove 15, which can be used to install a pad, which contacts the user's face and plays a sealing role. The material and shape of the pad can be selected as needed to ensure the fit and sealing performance with the user's face.

[0053] Furthermore, the breathing mask 100 may include sound-absorbing cotton, which is arranged in the air outlet 12 and located on the inner side of the noise reduction sheet 20, and can effectively absorb and reduce the noise generated when the airflow passes through the air outlet 12. The sound absorption performance of the sound-absorbing cotton helps to further improve the noise reduction effect of the mask and provide a quieter and more comfortable breathing environment for the user.

[0054] It can be understood that due to the presence of the sound-absorbing cotton, the aperture of the noise reduction hole 21 can be designed to be larger. This is because the sound-absorbing cotton can absorb and disperse the noise generated when the airflow passes through the noise reduction hole 21, and even if the aperture is increased, a good noise reduction effect can be maintained. This can not only increase the airflow passing rate and reduce airflow resistance, but also help to reduce the temperature and humidity inside the mask and improve the comfort of the user.

[0055] In addition, the utility model also provides a breathing device, which includes a respirator and the above-mentioned breathing mask 100, wherein the air outlet 12 of the respirator is connected to the air inlet 11 of the breathing mask 100 through a pipeline. Since the breathing device includes the above-mentioned breathing mask 100, the breathing device has all the beneficial effects of the above-mentioned breathing mask 100, which will not be described one by one here.

[0056] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A breathing mask, characterized in that: The breathing mask comprises a face frame and a noise reduction sheet. The face frame is provided with an air inlet and an air outlet. The noise reduction sheet is arranged at the air outlet. The noise reduction sheet is a metal sheet. The noise reduction sheet is provided with a plurality of noise reduction holes arranged at intervals.

2. The breathing mask according to claim 1, characterized in that The noise reduction holes are round holes, the noise reduction holes are evenly distributed on the noise reduction sheet, and the apertures of the noise reduction holes are 0.2 mm to 0.6 mm.

3. The breathing mask according to claim 1, characterized in that The thickness of the noise reduction sheet is 0.1 mm to 0.4 mm.

4. The breathing mask according to claim 1, characterized in that The noise reduction sheet is a stainless steel sheet.

5. A breathing mask according to any one of claims 1 to 4, characterized in that The number of the air outlets is two, and the two air outlets are arranged on both sides of the air inlet.

6. A breathing mask according to any one of claims 1 to 4, characterized in that The width of the air outlet is gradually reduced in a direction away from the air inlet.

7. A breathing mask according to any one of claims 1 to 4, characterized in that The edge of the noise reduction sheet is embedded in the face frame.

8. A breathing mask according to any one of claims 1 to 4, characterized in that The face frame includes a panel and a surrounding plate, wherein the surrounding plate is connected to the outer edge of the panel, and the panel is an outward convex arc plate.

9. The breathing mask according to claim 8, characterized in that The enclosure plate is provided with a mounting groove.

10. A breathing apparatus, characterized in that The breathing device comprises a respirator and a breathing mask as claimed in any one of claims 1 to 9, wherein an air outlet of the respirator is connected to an air inlet of the breathing mask through a pipeline.

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