Anti-fog nose pad

Abstract

The present invention discloses an anti-fogging nose pad, comprising: a nose pad for attaching to a human nose or nasal face, an extension for directing exhaled air downward, and a curved portion connecting the upper portion of the nose pad and the upper portion of the extension; a shaping strip is provided at the bottom of the nose pad; and when in use, the nose pad is hung on a mask. The nose pad is provided on the inner side of the mask, the side of the nose pad attached to the human nose or nasal face being the nose face side, and the nose face side being a hydrophobic surface; the side of the nose pad closer to the mask being the mask-proximal side, the lower portion of the nose pad being wedge-shaped, and the mask-proximal side of the lower portion of the nose pad having an inclined surface inclined from the mask toward the nose; the curved portion wraps around the upper edge of the mask, and the extension is provided on the outer side of the mask and extends downward. The present invention utilizes a curved portion, an extension, and an inclined surface to guide airflow, which, unlike conventional blocking design principles, reduces the impact of upward airflow on the adhesion of the nose pad and achieves an ideal anti-fogging effect.

Description

Technical Field

[0001] The present invention relates to the technical field of protective equipment, and in particular to an anti-fog nose pad for a mask. Background Art

[0002] Masks can be used for personal protection to reduce the risk of infection. Masks are sanitary products worn over the nose and mouth to filter air entering the mouth and nose, thereby blocking harmful gases, odors, and droplets from entering and exiting the wearer's mouth and nose. Wearing a mask is very effective during respiratory epidemics and when working in dusty and polluted environments. Masks are a common protective measure used at work, particularly in healthcare and epidemic prevention. However, for those who wear glasses, goggles, or face masks, the lenses often fog up when they exhale, obstructing vision and causing significant inconvenience in daily life and work. Analysis shows that the main reason for this is that the mask cannot form a good airtight seal with the nose and surrounding facial tissues. Exhaled air rises through the gaps and, upon encountering the relatively cool lenses, fogging occurs. Although surgical masks use a plastic material, such as wire, approximately 0.5 cm from the upper edge of the mask to improve the fit, this problem of fogging cannot be avoided.

[0003] From the perspective of existing solutions, on the one hand, starting from the design of the mask, such as adding an exhalation valve device, although it solves the problem of the gas exhaust channel well, it is not conducive to the prevention of disease transmission and increases the difficulty and cost of mask manufacturing; on the other hand, starting from the mask accessories, there are reports on the design of anti-fog nose pads ([CN201520535216.8] Anti-fog nose pad structure that can be used for masks), but similar designs mostly rely on the undulating shape of the nose and nose contours pre-designed on the nose pad to increase the fitting area to improve airtightness. However, the individual differences in people's nose and facial shapes greatly reduce the sealing effect. This type of design mainly relies on double-sided tape or other sticky materials to attach to the upper inner side of the mask, which is not conducive to repeated use and has problems with adhesion under the influence of aerosol. There is also a report ([CN206641412U] Anti-fog nose pad for mask and anti-fog mask) that fixes the nose pad to the mask in a detachable connection, solving the adhesion problem between the nose pad and the mask. However, the nose pad is attached to the nose by filling it with deformable materials such as silicone. When a person lowers his head to perform various operations, the weight of the silicone will cause the nose pad to separate from the nose and face. In short, these solutions generally fail to solve the problem of glasses fogging up when exhaling. Summary of the Invention

[0004] The present invention aims to provide an anti-fogging nose pad for a mask, so as to solve the problem that the mask cannot form a good airtightness with the nose and facial tissues around the nose in various situations such as looking straight ahead and looking down, which may cause gas to escape upward during exhalation, causing the glasses to fog up and affect vision.

[0005] In order to achieve the above-mentioned objectives, the present invention provides an anti-fog nose pad, which comprises: a nose sticking portion for attaching to the nose or nasal face of a human body, an extension portion for guiding the airflow exhaled by the human body downward, and a curved portion connecting the upper portion of the nose sticking portion and the upper portion of the extension portion; a shaping strip is provided at the bottom of the nose pad; in use, the nose pad is hung on the mask; wherein, the nose sticking portion is provided on the inner side of the mask, the side of the nose sticking portion attached to the nose or nasal face of the human body is the nose face side, and the nose face side is a hydrophobic surface; the side of the nose sticking portion close to the mask is the mask-proximal side, the lower portion of the nose sticking portion is wedge-shaped, and the mask-proximal side of the lower portion of the nose sticking portion has an inclined surface inclined from the mask toward the nose; the curved portion wraps around the upper edge of the mask; and the extension portion is provided on the outside of the mask and extends downward.

[0006] Preferably, the inner width of the curved portion is 0.5 to 3 mm.

[0007] Preferably, the height from the upper end to the lower end of the nose pad is 15 to 30 mm, and the thickness of the nose pad is 0.1 to 2 mm; the length from the upper end of the nose pad to the lower end of the extension is 10 to 20 mm, and the thickness of the extension is 0.1 to 2 mm.

[0008] Preferably, the height of the inclined surface is 10 mm.

[0009] Preferably, the diameter of the shaping strip is 0.3-1 mm.

[0010] Preferably, the shaping strip is a metal wire.

[0011] Preferably, the nose pad is made of plastic material.

[0012] Preferably, the nose pad is made of thermally conductive material.

[0013] Beneficial effects:

[0014] (1) The nose pad of the present invention adopts a curved portion, an extended portion, an inclined surface and other designs to guide the airflow, which is different from the previous blocking design principle. It reduces the impact of the upward airflow on the adhesion of the nose pad and has an ideal anti-fogging effect.

[0015] (2) The nose pad of the present invention exists independently and is used in conjunction with a mask without affecting the original design of the mask. It is applicable to various masks and can be reused repeatedly. It is simpler and more economical than a design in which the nose pad and mask are integrated. It can be purchased separately by people who wear glasses according to their needs.

[0016] (3) A gap is allowed to exist between the nose pad of the present invention and the nose and facial tissue. The material properties are used to induce the mist to quickly condense into water in the gap during the initial wearing and retain it to achieve good adsorption and stabilization effects.

[0017] (4) Plastic materials such as metal wires / strips are placed at the bottom of the nose pad, which allows the wearer to adjust the shape and the degree of compression on the nose, thereby improving the stability and airtightness of the nose pad.

[0018] (5) The inclined surface near the mask side cleverly utilizes the air pressure of the exhaled gas when it flows, which can form an extrusion force toward the nose or nasal face, thereby increasing the stability and adhesion effect of the nose pad and the nose or nasal face. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of the anti-fog nose pad of the present invention.

[0020] Figure 2 This is a schematic diagram of the anti-fog nose pad of the present invention in use.

[0021] Figure 3 Schematic diagram of the use principle of the anti-fog nose pad of the present invention.

[0022] Figure 4 This is a schematic diagram of the nose pad with a metal wire on the upper part of the nose in use.

[0023] Figure 5 1 is a diagram illustrating the dimensions of a nose pad in one embodiment. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0025] In the present invention, terms related to orientation, such as upper part, lower part, bottom, upper edge, upper end, lower end, height, etc., describe the orientation in the use state and are not used to limit the structure.

[0026] like Figure 1 The figure shows the structure of the anti-fog nose pad of the present invention. The anti-fog nose pad 1 of the present invention comprises: a nose-attaching portion 15 for attaching to the nose or nose-face of a human body, an extension portion 12 for guiding the exhaled airflow downward, and a curved portion 11 connecting the upper portion of the nose-attaching portion 15 and the upper portion of the extension portion 12. A shaping strip 14 is provided at the bottom of the nose pad 1. Figure 2The figure shows a schematic diagram of the anti-fog nose pad 1 of the present invention in use. In this state, the nose pad 1 is attached to the mask 2 via a groove formed on the inner side of the curved portion 11. The nose-facing portion 15 is located inside the mask 2. The side of the nose-facing portion 15 that adheres to the nose or nasal face is the nasal face side, which has a hydrophobic surface. The side of the nose-facing portion 15 closest to the mask 2 is the mask-proximal side. The lower portion of the nose-facing portion 15 is wedge-shaped, and the mask-proximal side of the lower portion of the nose-facing portion 15 has an inclined surface 13 that slopes from the mask 2 toward the nose. The curved portion 11 wraps around the upper edge of the mask 2, and the extended portion 12 is located on the outer side of the mask 2 and extends downward.

[0027] When using the nose pad 1 of the present invention, it is worn together with the mask 2. The curved portion 11 does not restrict the upper edge of the mask 2 from sliding up, down, or left or right, allowing the upper edge of the mask 2 to slide freely within the groove formed by the curved portion 11. The nose pad 1 of the present invention can be used independently with the mask 2 without affecting the original design of the mask. It can be purchased separately by people who wear glasses or goggles, etc.

[0028] In some embodiments, the shaping strip 14 is a metal wire / strip. A plastic material such as a metal wire / strip is placed at the bottom of the nose pad 15, allowing the wearer to adjust the shape and degree of pressure on the nose. The deformability of the metal wire / strip improves the adhesion of the nose pad 1, preventing the pre-designed contours of the nose and surrounding nose from being affected by individual differences and causing a decrease in airtightness. Furthermore, the adhesion and pressure adjustment to the nose can achieve stable retention and prevent the nose from moving.

[0029] The present invention prevents the mask from falling out of the curved portion 11 by providing the extension portion 12 and guides the gas 3 downward. Figure 3 As shown, when the nose pad 1 of the present invention is attached to the nose or facial area of ​​a person, it guides the upward exhaled air 3 through the inclined surface 13 to the groove formed by the curved portion 11. After turning, it is discharged downward through the channel between the mask 2 and the nose pad extension 12. This prevents the hot air 3 from escaping upward during exhalation and encountering the relatively cool glasses, causing fogging on the lenses and affecting vision. The inclined surface 13 on the mask-proximal side of the nose pad 1 cooperates with the groove to better guide the exhaled air 3. In addition, the inclined surface 13 cleverly utilizes the air pressure F of the exhaled air 3 during its flow to generate a compressive force toward the nose or facial area, thereby enhancing the adhesion of the nose pad 1 to the nose or facial area.

[0030] Please continue reading Figure 2 The curved portion 11 is made of a non-resilient material, allowing it to adhere to the nose or face as the upper end of the mask 2 is shaped. The nose pad 1's hydrophobic surface doesn't require a perfect fit, allowing for a small gap. Initial wear allows for the rapid condensation of mist into water within this gap, which is retained to achieve optimal absorption and stabilization. The nose pad 1 is also easy to clean and disinfect.

[0031] like Figure 4 As shown, in some embodiments, a metal wire 16 is provided on the upper portion of the nose pad 15 to further improve the airtightness and wearing stability of the nose pad 1.

[0032] like Figure 5 As shown, in some embodiments, the height from the upper end to the lower end of the nose pad 1 is 20 mm, the length from the upper end of the nose pad 1 to the lower end of the extension 12 is 10 mm, the height of the slope 13 is 10 mm, the thickness of the upper end of the slope is 1 mm, the thickness of the bottom end is about 0.5 mm (equivalent to the diameter of the shaping strip 14 of 0.5 mm), the width of the groove on the inner side of the curved portion is 2 mm, and the thickness of the extension portion is 0.5 mm.

[0033] The nose pad material of the present invention can be non-toxic, safe, comfortable, soft, and easily shaped. High hydrophobicity or the ability to absorb or adhere to human tissue will provide better results. Low-density materials can reduce weight, and materials with good thermal conductivity facilitate heat dissipation, both of which can achieve better results. The shape and size of the nose pad 1 are not specific. It can be flat, grooved to fit the contours of the nose, or customized by molding or printing. The size should preferably cover at least the width of the nasal dorsum.

[0034] In summary, the anti-fog nose pad provided by the present invention can achieve an ideal anti-fog effect through designs such as the curved portion, the extended portion, the metal wire provided at the bottom of the nose pad, and the inclined surface.

[0035] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description is not intended to limit the present invention. After reading the above description, various modifications and substitutions of the present invention will become apparent to those skilled in the art. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. An anti-fog nose pad, characterized in that: The nose pad comprises: a nose pad for attaching to the nose or nose face of a human body, an extension portion for guiding the airflow exhaled by the human body downward, and a curved portion connecting the upper portion of the nose pad and the upper portion of the extension portion; a shaping strip is provided at the bottom of the nose pad; in the use state, the nose pad is hung on the mask; wherein, The nose sticker is provided on the inner side of the mask, and the side of the nose sticker that is attached to the nose or nasal face of the human body is the nose face side, and the nose face side is a hydrophobic surface; the side of the nose sticker close to the mask is the mask-proximal side, and the lower part of the nose sticker is wedge-shaped, and the mask-proximal side of the lower part of the nose sticker has an inclined surface inclined from the mask toward the nose; The curved portion wraps around the upper edge of the mask; the nose pad is hung on the mask through a groove formed on the inner side of the curved portion, and the upper edge of the mask can slide freely within the groove formed by the curved portion; the inner side of the curved portion has a width of 0.5 to 3 mm; The extension portion is arranged on the outside of the mask and extends downward.

2. The anti-fog air nose pad according to claim 1, characterized in that: The height from the upper end to the lower end of the nose pad is 15 to 30 mm, and the thickness of the nose pad is 0.1 to 2 mm; the length from the upper end of the nose pad to the lower end of the extension is 10 to 20 mm, and the thickness of the extension is 0.1 to 2 mm.

3. The anti-fog air nose pad according to claim 1, characterized in that: The height of the inclined surface is 10 mm.

4. The anti-fog air nose pad according to claim 1, characterized in that: The diameter of the shaping strip is 0.3-1 mm.

5. The anti-fog air nose pad according to claim 1, characterized in that: The shaping strip is a metal wire.

6. The anti-fog air nose pad according to claim 1, characterized in that: The nose pad is made of plastic material.

7. The anti-fog air nose pad according to claim 1, characterized in that: The nose pad is made of thermally conductive material.

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