A mouth and nose cover for a filtering mask

Abstract

A kind of mouth and nose cover for filtering mask, it is installed in the mouth and nose cover outside of filtering mask, mouth and nose cover is buckled around, and the outer protrusion of middle lower part is smoothly transitioned as whole drop arc shape;The mouth and nose cover middle is equipped with air guide grid, and the air guide grid is the outermost portion of mouth and nose cover body;The left upper, left lower, right upper, right lower of the mouth and nose cover are equipped with elastic band through hole;Between the left upper, left lower elastic band through hole, between the right upper, right lower elastic band through hole, it is equipped with elastic band positioning structure.The utility model can improve user experience by the above structure, and position fixing effect is good after wearing.

Description

Technical Field

[0001] This utility model relates to the field of self-priming filter masks, specifically a mouth and nose cover for a filter mask. Background Technology

[0002] Filter masks are widely used in fields such as healthcare, firefighting, and rescue. The mouth and nose cover, mounted on the outside of the filter mask, is a crucial component of the filter mask.

[0003] The existing mouth and nose mask design is flawed, resulting in poor compactness and occupying a large portion of the mask's surface area, negatively impacting usability. Furthermore, the numerous perforations for the elastic bands on both sides of the existing mask take up significant space, with most of these perforations remaining unused, wasting valuable mask area. Moreover, the lack of reinforcement and positioning for the elastic bands after they pass through allows them to shift within the mask, resulting in poor stability and a subpar wearing experience. Utility Model Content

[0004] In view of the technical problems existing in the prior art, the present invention provides a mouth and nose cover for a filter mask.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a mouth and nose cover for a filter mask, installed on the outside of the mouth and nose cover of the filter mask, the mouth and nose cover is inwardly folded around the perimeter and protrudes outward in the lower middle part, with a smooth transition in the shape of a teardrop arc; an air-guiding mesh is provided in the middle of the mouth and nose cover, the air-guiding mesh being the outermost protruding part of the main body of the mouth and nose cover; elastic band through holes are provided at the upper left, lower left, upper right, and lower right of the mouth and nose cover; an elastic band positioning structure is provided between the upper left and lower left elastic band through holes and between the upper right and lower right elastic band through holes.

[0006] The air-guiding mesh is composed of N horizontally connected strips. These N horizontally connected strips have an inclination angle in both the inward and outward directions.

[0007] The elastic band through hole is a rectangular hole; the upper elastic band through hole is higher on the side closer to the middle and lower on the side closer to the left / right side, and the lower elastic band through hole is lower on the side closer to the middle and higher on the side closer to the left / right side; the elastic band forms a certain angle after passing through the elastic band through hole.

[0008] The elastic band positioning structure is a claw structure. One side of the claw is connected to the outer edge of the mouth and nose cover, and the other side protrudes outward and extends along the arc of the outer arc surface of the mouth and nose cover towards the vertical center line of the mouth and nose cover. An elastic band passage gap is formed between the claw and the outer arc surface of the mouth and nose cover to fix the position of the elastic band.

[0009] The protruding side of the gripper has an arc-shaped structure. There are four elastic band positioning structures, with two on one side, one at the top and one at the bottom.

[0010] Beneficial effects

[0011] This invention provides a nose and mouth cover for a filter mask. The cover is shaped like a teardrop arc, conforming to the human body structure and providing a comfortable wearing experience. The teardrop arc design ensures sufficient filtration area at the nose and mouth while reducing the area occupied by the cover on the sides of the face, thus minimizing its proportion of the overall mask area and facilitating the design and installation of other components. Elastic band through-holes at the top, bottom, left, and right corners facilitate band passage while minimizing the area occupied, allowing the cover to be minimized in size without compromising filtration efficiency. This invention also incorporates an elastic band positioning structure, which better defines the position of the elastic band, ensuring a secure fit and enhancing the user experience. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 for Figure 1 Side view;

[0014] Figure 3 for Figure 1 Top view;

[0015] Figure 4 for Figure 1 A three-dimensional image.

[0016] In the diagram: 1. Air guide mesh; 2. Elastic band through hole; 3. Elastic band positioning structure. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-4The illustration shows a mouth and nose cover for a filter mask, installed on the outside of the mouth and nose cover of the filter mask. The cover has an inward curve around the edges and an outward curve in the lower middle, with a smooth, teardrop-shaped transition. This design makes the overall structure of the mouth and nose cover more compact, conforms to the human body structure, and provides a better wearing experience. Moreover, the teardrop-shaped design reduces the area occupied by the mouth and nose cover on the sides of the face while ensuring the filtration area at the mouth and nose, thus reducing the proportion of the mouth and nose cover in the overall mask area and facilitating the design and installation of other structures.

[0019] The mouth and nose mask features an air-guiding mesh 1 in the center. This mesh 1 is the outermost protruding part of the mask's main body, positioned to correspond to the mouth and nose, and placed at the most prominent position to conform to the human body's structure and shape, enhancing the user's experience. The air-guiding mesh 1 is composed of N horizontal strip-shaped supports connected together. These N horizontal strip-shaped supports have an inward and outward tilt angle. Using the horizontal center line as a reference, the horizontal strip-shaped supports below the center line tilt downwards on the outside and upwards on the inside, while the horizontal strip-shaped supports above the center line tilt upwards on the outside and downwards on the inside. This design can, to a certain extent, limit the airflow direction, directing the airflow downwards and preventing water vapor from condensing on the wearer's glasses.

[0020] The mouth and nose mask cover has elastic band through holes 2 at the upper left, lower left, upper right, and lower right positions. The elastic band through holes 2 are rectangular holes; the upper elastic band through hole 2 is higher on the side closer to the middle and lower on the side closer to the left / right side, and the lower elastic band through hole 2 is lower on the side closer to the middle and higher on the side closer to the left / right side; the elastic band forms a certain angle after passing through the elastic band through hole 2, which facilitates the positioning and wearing of the elastic band.

[0021] Elastic band positioning structures 3 are provided between the upper left and lower left elastic band through holes 2, and between the upper right and lower right elastic band through holes 2. Each elastic band positioning structure 3 is a claw structure. One side of the claw connects to the outer edge of the mouth and nose mask cover, while the other side protrudes outwards and extends along the arc of the outer surface of the mouth and nose mask cover towards its vertical center line. A gap is formed between the claw and the outer arc surface of the mouth and nose mask cover to secure the elastic band. There are four elastic band positioning structures 3, with two on one side (upper and lower). This design increases the stability of the elastic band, preventing the entire mask from shifting easily after wearing. The extended side arc structure of the claws reduces the risk of damage to the elastic band.

Claims

1. A nose and mouth cover for a filter mask, installed on the outside of the nose and mouth cover of the filter mask, characterized in that: The mouth and nose mask covers are folded inward around the perimeter and protrude outward in the lower middle part, with a smooth transition and a teardrop-shaped arc. The mouth and nose mask covers have an air-guiding mesh (1) in the middle, which is the outermost protruding part of the main body of the mouth and nose mask covers. The mouth and nose mask covers have elastic band through holes (2) at the upper left, lower left, upper right, and lower right. Elastic band positioning structures (3) are provided between the upper left and lower left elastic band through holes (2) and between the upper right and lower right elastic band through holes (2).

2. The mouth and nose cover for a filter mask according to claim 1, characterized in that, The air-guiding grid (1) is composed of N horizontal strips connected together.

3. The mouth and nose cover for a filter mask according to claim 2, characterized in that, The N transverse strip supports are inclined at angles in the inward and outward directions.

4. The mouth and nose cover for a filter mask according to claim 1, characterized in that, The elastic band through hole (2) is a rectangular hole; the upper elastic band through hole (2) is higher on the side closer to the middle and lower on the side closer to the left / right side, and the lower elastic band through hole (2) is lower on the side closer to the middle and higher on the side closer to the left / right side; the elastic band forms a certain angle after passing through the elastic band through hole (2).

5. The mouth and nose cover for a filter mask according to claim 1, characterized in that, The elastic band positioning structure (3) is a claw structure. One side of the claw is connected to the outer edge of the mouth and nose cover, and the other side protrudes outward and extends along the arc of the outer arc surface of the mouth and nose cover towards the vertical center line of the mouth and nose cover. An elastic band passage gap is formed between the claw and the outer arc surface of the mouth and nose cover to fix the position of the elastic band.

6. A mouth and nose cover for a filter mask according to claim 5, characterized in that, The protruding side of the chuck has an arc structure.

7. The mouth and nose cover for a filter mask according to claim 4, characterized in that, The elastic band positioning structure (3) consists of four parts, with two on one side, one above the other.

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