Nose sealing piece and respiratory protection article

Abstract

The utility model belongs to the technical field of respiratory protection appliances, and particularly relates to a nose sealing piece and a respiratory protection appliance. According to the technical scheme, the nose sealing piece comprises an attaching face attached to the face of a user and a connecting face used for being connected with a respiratory protection article body. The clinging face comprises a nose bridge part clinging to the nose bridge, the surface of the nose bridge part is in an inwards-concave arc shape, nose wing parts clinging to the nose wings are arranged on the two sides of the nose bridge part, the surface of each nose wing part is in a smooth protruding shape, and face parts clinging to the face are arranged on the sides, away from the nose bridge part, of the nose wing parts. The face part is gradually thinned in the direction away from the nose wing part; the overall structure of the nose sealing part is in an inverted V shape with the nose bridge part as the center. The utility model provides the nose sealing piece and the respiratory protection article which are tighter in sealing, lighter in pressure and more comfortable to wear.

Description

Technical Field

[0001] The utility model belongs to the technical field of respiratory protection equipment, and particularly relates to a nose seal and a respiratory protection product. Background Art

[0002] A core indicator of respiratory protective equipment is leakage. If the leakage is large, harmful substances in the air will be directly inhaled into the respiratory tract through the leakage gap, causing harm to human health. Especially in high-level respiratory protective equipment, the leakage requirements are higher, such as the Chinese standard KN100, the US standard N100, and the EU standard FFP3. It is difficult to achieve sealing that meets the standards with traditional technology, and there are many unqualified products.

[0003] The nose bridge of today's masks is generally a straight line, which is bent into an inverted V shape and pasted on the mask when used. As a result, the shape of the nose bridge is not suitable for the shape of the nose and face. Some places are too tight, causing greater pressure and making people uncomfortable; some places are too loose, causing greater leakage, and the protective effect is poor. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the purpose of the utility model is to provide a nasal seal and respiratory protection product with tighter sealing, lighter pressure and more comfortable wearing.

[0005] The technical solution adopted by the utility model is:

[0006] A nose seal comprises a contact surface that contacts closely with the face of a user and a connection surface for connecting with a main body of a respiratory protective device; the contact surface comprises a nose bridge portion that contacts closely with the nose bridge, the surface shape of the nose bridge portion is an inwardly concave arc shape, nose wing portions that contact closely with nose wings are arranged on both sides of the nose bridge portion, the surface shape of the nose wing portions is a smooth convex shape, a face portion that contacts closely with the face is arranged on one side of the nose wing portion away from the nose bridge portion, and the face portion gradually becomes thinner in a direction away from the nose wing portion; the overall structure of the nose seal is in an inverted V shape with the nose bridge portion as the center.

[0007] The utility model scientifically and strictly designs the nose seal according to the shape characteristics of the nose and face. Compared with the traditional nose seal, the utility model has a tighter seal, lighter pressure, lower leakage and better comfort. The overall structure of the nose seal is in an inverted V shape, which avoids the situation that the shape of the nose bridge strip is not suitable for the shape of the nose and face when it is bent into an inverted V shape during use. The nose bridge part that is close to the nose bridge is arc-shaped and has a certain depth so as to fit the nose bridge tightly without compressing the nose bridge. The nose wings that are close to the sides of the nose are in a smooth convex shape so as to fit tightly to the sunken parts on both sides of the nose. The facial part that is close to the two sides of the face is in a shape of gradual thickness so as to fit tightly to the two sides of the face. The utility model reduces the leakage of the respirator and improves the protective effect and comfort of the respirator.

[0008] As a preferred solution of the present invention, the nose bridge, nose wing and face part are smoothly transitioned in sequence.

[0009] As a preferred solution of the utility model, the connection surface is provided with a sealing connection material or a sealing connection device for connecting with the main body of the respiratory protection product.

[0010] As a preferred solution of the utility model, the connecting surface is provided with a connecting device for detachably connecting with the main body of the respiratory protection product.

[0011] As a preferred solution of the utility model, the nose seal is an airtight structure as a whole, and the internal structure is a porous structure or a hollow structure.

[0012] As a preferred solution of the utility model, the material of the nose seal is a soft and elastic deformable material, so as to be fine-tuned to better fit the nose and face shapes of different people and reduce the pressure on the skin.

[0013] As a preferred solution of the present invention, the material of the nose seal is safe and harmless to the human body and does not irritate or cause allergies to the skin.

[0014] A respiratory protection product comprises a nose seal and a respiratory protection product body, wherein the respiratory protection product body is connected to a connecting surface of the nose seal.

[0015] The beneficial effects of the utility model are:

[0016] The utility model scientifically and strictly designs the nose seal according to the shape characteristics of the nose and face. Compared with the traditional nose seal, the utility model has a tighter seal, lighter pressure, lower leakage and better comfort. The overall structure of the nose seal is in an inverted V shape, which avoids the situation that the shape of the nose bridge strip is not suitable for the shape of the nose and face when it is bent into an inverted V shape during use. The nose bridge part that is close to the nose bridge is arc-shaped and has a certain depth so as to fit the nose bridge tightly without compressing the nose bridge. The nose wings that are close to the sides of the nose are in a smooth convex shape so as to fit tightly to the sunken parts on both sides of the nose. The facial part that is close to the two sides of the face is in a shape of gradual thickness so as to fit tightly to the two sides of the face. The utility model reduces the leakage of the respirator and improves the protective effect and comfort of the respirator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the first direction of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the second direction of the utility model;.

[0019] In the figure: 1- bridge of nose; 2- wings of nose; 3- face; 4- connecting surface. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0022] Embodiment 1:

[0023] like Figure 1 and Figure 2 As shown, the nose seal of this embodiment includes a fitting surface that fits tightly against the face of the user and a connecting surface 4 for connecting to the main body of the respiratory protection product; the fitting surface includes a nose bridge portion 1 that fits tightly against the bridge of the nose, the surface shape of the nose bridge portion 1 is an inwardly concave arc shape, nose wing portions 2 that fit tightly against the wings of the nose are arranged on both sides of the nose bridge portion 1, the surface shape of the nose wing portion 2 is a smooth convex shape, and a facial portion 3 that fits tightly against the face is arranged on the side of the nose wing portion 2 away from the nose bridge portion 1, and the facial portion 3 gradually becomes thinner in the direction away from the nose wing portion 2; the overall structure of the nose seal is in an inverted V shape with the nose bridge portion 1 as the center.

[0024] The utility model scientifically and strictly designs the nose seal according to the shape characteristics of the nose and face. Compared with the traditional nose seal, the utility model has a tighter seal, lighter pressure, lower leakage and better comfort. The overall structure of the nose seal is in an inverted V shape, which avoids the situation that the shape of the nose bridge strip is not suitable for the shape of the nose and face when it is bent into an inverted V shape during use. The nose bridge part 1 that is close to the bridge of the nose is arc-shaped and has a certain depth so as to fit the bridge of the nose tightly without compressing the bridge of the nose. The nose wing part 2 that is close to both sides of the nose wing is a smooth convex shape so as to fit tightly to the sunken parts on both sides of the nose wing. The facial part 3 that is close to both sides of the face is in a shape of gradual thickness so as to fit tightly to both sides of the face. The utility model reduces the leakage of the respirator and improves the protective effect and comfort of the respirator.

[0025] The nose bridge portion 1, nose wing portion 2 and face portion 3 are smoothly transitioned in sequence.

[0026] The connection surface 4 is provided with a sealing connection material or a sealing connection device for connecting with the main body of the respiratory protection product.

[0027] The connection surface 4 is provided with a connection device for detachable connection with the main body of the respiratory protection product.

[0028] The nose seal is an airtight structure as a whole, and the internal structure is a porous structure or a hollow structure.

[0029] The material of the nose seal is a soft, elastic and deformable material so that it can be fine-tuned to better fit the nose and face shape of different people and reduce pressure on the skin.

[0030] The material of the nose seal is safe and harmless to the human body and does not irritate or allergic the skin.

[0031] Embodiment 2:

[0032] The respiratory protection product of this embodiment includes a nose seal and a respiratory protection product body, and the respiratory protection product body is connected to the connecting surface 4 of the nose seal.

[0033] like Figure 1 and Figure 2 As shown, the nose seal comprises a fitting surface that fits tightly against the user's face and a connecting surface 4 for connecting to the main body of the respiratory protective equipment; the fitting surface comprises a nose bridge portion 1 that fits tightly against the nose bridge, the surface shape of the nose bridge portion 1 is an inwardly concave arc shape, nose wing portions 2 that fit tightly against the nose wings are arranged on both sides of the nose bridge portion 1, the surface shape of the nose wing portion 2 is a smooth convex shape, and a facial portion 3 that fits tightly against the face is arranged on the side of the nose wing portion 2 away from the nose bridge portion 1, and the facial portion 3 gradually becomes thinner in the direction away from the nose wing portion 2; the overall structure of the nose seal is in an inverted V shape with the nose bridge portion 1 as the center.

[0034] The utility model scientifically and strictly designs the nose seal according to the shape characteristics of the nose and face. Compared with the traditional nose seal, the utility model has a tighter seal, lighter pressure, lower leakage and better comfort. The overall structure of the nose seal is in an inverted V shape, which avoids the situation that the shape of the nose bridge strip is not suitable for the shape of the nose and face when it is bent into an inverted V shape during use. The nose bridge part 1 that is close to the bridge of the nose is arc-shaped and has a certain depth so as to fit the bridge of the nose tightly without compressing the bridge of the nose. The nose wing part 2 that is close to both sides of the nose wing is a smooth convex shape so as to fit tightly to the sunken parts on both sides of the nose wing. The facial part 3 that is close to both sides of the face is in a shape of gradual thickness so as to fit tightly to both sides of the face. The utility model reduces the leakage of the respirator and improves the protective effect and comfort of the respirator.

[0035] The nose bridge portion 1, nose wing portion 2 and face portion 3 are smoothly transitioned in sequence.

[0036] The connection surface 4 is provided with a sealing connection material or a sealing connection device for connecting with the main body of the respiratory protection product.

[0037] The connection surface 4 is provided with a connection device for detachable connection with the main body of the respiratory protection product.

[0038] The nose seal is an airtight structure as a whole, and the internal structure is a porous structure or a hollow structure.

[0039] The material of the nose seal is a soft, elastic and deformable material so that it can be fine-tuned to better fit the nose and face shape of different people and reduce pressure on the skin.

[0040] The material of the nose seal is safe and harmless to the human body and does not irritate or allergic the skin.

[0041] The present utility model is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present utility model fall within the protection scope of the present utility model.

Claims

1. A nose seal, characterized in that: The invention comprises a close-fitting surface which is in close contact with the face of the user and a connecting surface (4) for connecting with the main body of the respiratory protective equipment; the close-fitting surface comprises a nose bridge portion (1) which is in close contact with the nose bridge, the surface shape of the nose bridge portion (1) is an inwardly concave arc shape, nose wing portions (2) which are in close contact with the nose wings are arranged on both sides of the nose bridge portion (1), the surface shape of the nose wing portions (2) is a smooth convex shape, and a facial portion (3) which is in close contact with the face is arranged on the side of the nose wing portion (2) away from the nose bridge portion (1), and the facial portion (3) gradually becomes thinner in the direction away from the nose wing portion (2); the overall structure is in an inverted V shape with the nose bridge portion (1) as the center.

2. A nasal seal according to claim 1, characterized in that: The nose bridge portion (1), nose wing portion (2) and facial portion (3) are smoothly transitioned in sequence.

3. A nasal seal according to claim 1, characterized in that: The connection surface (4) is provided with a sealing connection material or a sealing connection device for connecting with the main body of the respiratory protection product.

4. A nasal seal according to claim 1, characterized in that: The connection surface (4) is provided with a connection device for detachably connecting with the main body of the respiratory protection product.

5. A nasal seal according to claim 1, characterized in that: The overall structure is airtight, and the internal structure is a porous structure or a hollow structure.

6. A nasal seal according to claim 1, characterized in that: The material is soft, elastic and deformable.

7. A nasal seal according to claim 1, characterized in that: The materials are safe and harmless to the human body and do not irritate or cause allergies to the skin.

8. A respiratory protective article comprising the nasal seal according to any one of claims 1 to 7, characterized in that: It also comprises a respiratory protection device body, which is connected to a connection surface (4) of the nose seal.

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