Mask with v-shaped structure

Abstract

The utility model relates to a mask with V structure. The mask rope of the upper part of the mask presents V type, or the mask rope of the upper part of the mask presents the V type of bending deformation, or the mask rope of the upper part of the mask presents the V type of incompleteness, or the mask rope of the upper part and the lower part of the mask presents X type, the design of mask leakage prevention, any mask rope of the mask at least has one head not fixed on the original fixed point of the existing mask, the upper part of the mask, two fixed points move to the corresponding nose bridge area of the mask, and the auxiliary fixed point is equipped with in the edge area of the mask coming from its movement, and the auxiliary fixed point adopts sliding connection. The mask with V structure can be close to the face.

Description

[0001] Original application date: December 8, 2022; Application number: 2022235996450; Invention title: Face mask with LV structure. Technical Field

[0002] This utility model relates to the field of mask technology, or to the field of protective equipment technology or medical care technology, and more specifically, it relates to a mask with a V-structure. Background Technology

[0003] Medical masks and protective masks from all over the world require a nose bridge strip in their standards. This application aims to break through these national standards.

[0004] This application reduces the current three parts of a mask to two parts without altering the existing mask structure. Changing the structure would introduce numerous problems and complications, including in production and equipment. Furthermore, maintaining the original mask structure is suitable for large-scale production, as existing mask-making machines can be utilized. This truly achieves a two-part mask replacing a three-part mask within the existing industrial framework. Adapting to the high-speed production of the high-speed mask industry, the structure must be as simple as possible, using the least amount of material.

[0005] It has received much praise, including from major users, and has won invention awards, including from several international intellectual property organizations. All information is available on the official website: www.hosya.com Every day, humans are throwing used masks into nature, and these masks contribute to microplastic pollution.

[0006] This invention eliminates the nose bridge strip, a very important component. The nose bridge strip requires steel wire, which is then coated with resin. This causes the steel wire to rust, increasing storage and management costs.

[0007] Regarding production equipment: Equipment capable of producing this type of mask, specifically masks with sliding fixing points, did not exist previously. Only after failing with various solutions was high-speed production equipment for the masks of this invention developed. Several innovative structures for the production equipment were invented.

[0008] Current face masks consist of a mask body, a nose bridge strip, and fastening straps. However, most masks on the market currently leak air when worn, meaning that exhaled air or outside air can leak in or out through the mask's edges. The simplest test is to exhale forcefully into the mask while wearing it; you can detect this leaking through the edges. Even N95 masks will shift or develop gaps when speaking or moving. Summary of the Invention

[0009] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a mask with a V-structure as a new type of mask, and to achieve great technical effects with minimal modifications.

[0010] The technical solution of this utility model is achieved as follows: fully utilizing various mechanical methods, optionally: according to the appendix... Figure 1 2. We can see the structure of "L" and "V" and their mechanical principles. A straight mask strap bent into an "L" shape will generate force.

[0011] A V-shaped structure, referred to simply as the V-shaped structure or V-shape, is fixed to the upper part of the mask. It can be made of various materials. For example, the middle of the V-shape can be fixed to the outer surface of the mask, meaning that from each side of the mask, the upper part has half of a V-shaped structure. The two upper corners of the mask are slidably connected to the V-shaped structure. During wear, the two upper corners slide downwards along the V-shaped structure and towards the left and right center lines of the mask. Taking the left side of the mask as an example, half of the V-shaped structure is fixed to the mask body diagonally from the upper left corner to the lower right. During wear, under the action of force, such as the arching force in the mouth and nose area of ​​the mask with each exhale, the upper left corner of the mask moves the upper and left edges of the mask towards the mouth and nose area, thus fitting snugly against the face. More and more mask fabric in the mouth and nose area arches, creating a breathing space. This effect continues as the mask is worn, essentially providing a proactive defense. The V-shaped structure at the two corners of the mask can be extended to secure it to the face or head, or further secured to the face or head via other components, or even attached to glasses via other connectors. This structure is much more effective when the mask body is without a nose bridge strip. Similarly, it can be used to fix an approximately inverted V-shaped mask strap to the lower part of the mask body. For N95 type three-dimensional masks, because there is a protruding part in the nose bridge area at the top of the mask body, an approximately inverted V-shaped structure is fixed to the upper part of the mask body. The V-shaped structure can use similar structures or other structures based on similar principles. For example, a V-shape originally consists of two segments, and then a vertical segment is added in the middle of the V-shape, resembling an upward-pointing three-pronged structure. Alternatively, the upper V-shape and the lower inverted V-shape of the mask can be spliced ​​together to form an X-shaped structure. These structures can use approximate shapes or incomplete shapes. For example, the V-shape structure can use: a curved or deformed V-shape, an incomplete V-shape, etc. V-shaped structures and similar structures can be made from a variety of materials, such as rubber, plastic, and mask straps.

[0012] The V-shaped structure at the two corners of the mask can be extended or further secured to the face or head via connecting components. As shown in the attached diagram, the mask straps of the V-shaped structure between the sliding fixing points extend through the sliding fixing points to become mask straps.

[0013] For applications such as 3D masks, as shown in the attached diagram, when the mask is opened and worn, a portion of the mask straps can be seen from the front. Specifically, the straps between the two sliding fixing points at the top of the mask form a small inverted V-shape. However, including the straps extending to the ears, the overall structure is still approximately V-shaped, thus utilizing the mask straps' mechanical properties relatively little. Therefore, to achieve better results, the shape of the 3D mask can be optimized.

[0014] The beneficial effects of this invention are: it revolutionizes face masks, reducing their decades-old structure from three parts to two, greatly promoting energy conservation and environmental protection. This small innovation has a significant impact, showcasing the charm of invention. Furthermore, the mask body structure remains unchanged, making it suitable for large-scale production needed during the current pandemic, as existing mask-making machines can be utilized. Thus, it truly realizes the replacement of three-part masks with two parts based on existing industrial foundations.

[0015] The absence of a nose bridge strip reduces costs and facilitates the environmentally friendly recycling of discarded masks. Reducing these auxiliary components also lowers the risk of accidental injury to the eyes and face, representing a significant improvement, especially for children's masks. Furthermore, the absence of a nose bridge strip significantly reduces production costs, saving on processing steps and materials. Attached Figure Description

[0016] Figure 1 This is a diagram illustrating the L-structure in this application; Figure 2 This is a diagram illustrating the V-structure of this application; Figure 3 This is a structural schematic diagram of another embodiment of the mask in this application; Figure 4 This is a structural schematic diagram of another embodiment of the mask in this application; Figure 5 This is a structural schematic diagram of another embodiment of an improved N95 / KN95; Figure 6 This application contains a structural schematic diagram of a new fixed-point location; Figure 7 This is a picture of what an existing N95 / KN95 mask looks like before it's been folded in half. Figure 8 This is a structural schematic diagram of another embodiment of the mask in this application; Figure 9 This is a structural schematic diagram of another embodiment of the mask in this application; In the figure, 9. Mask body, 11. Fixing strap, 30. Fixing hole, 31. Ring structure, 129. Elastic element. Detailed Implementation

[0017] The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. However, those skilled in the art will understand that the embodiments described below are some embodiments of the present invention, but not all embodiments, and are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. However, it should be understood that the features described with respect to one embodiment can also be combined with other embodiments. However, for the same reason, one or more features of any described embodiment should not be regarded as essential to every embodiment of the present invention, because other embodiments of the present invention may omit these features.

[0018] Unless otherwise stated, all figures used herein to indicate quantities, dimensions, etc., shall be understood to be modified by the term “about” in all cases. In this application, the use of the singular includes the plural, and unless otherwise expressly stated, the use of the terms “and” and “or” means “and / or”, unless otherwise stated. Furthermore, the use of the term “comprising” and other forms such as “including” and “contains” shall be considered non-exclusive.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a sliding connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] In this invention, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0022] For the sake of brevity, the phrase "preferred embodiment" is not repeated, but paragraphs describing the implementation of the structure generally contain one embodiment.

[0023] The protective equipment for masks in this application refers to: masks, related components on masks, mask-related products, or respiratory-related products, including small masks for the nose and large masks including face shields.

[0024] The active ingredients and functional ingredients referred to in this invention are functional substances.

[0025] The N95 mask referred to in this application can refer to a folded mask, also known as an N95-shaped mask, or a three-dimensional mask, or more generally, a three-dimensional mask, such as a KF94 mask, a PFF2 mask, or a duckbill-shaped mask.

[0026] The fixing strap of this invention is a mask cord, a structural component used to secure a mask to the face. Mask fabric also includes the surface material or material of various masks. This invention provides a special mask cord fixing device that adds a section of mask cord to the mask surface; for short, a mask cord fixing device.

[0027] The clamps and grippers of a mask machine are also referred to as robotic arms in this application.

[0028] The preferred embodiments of this application are provided to provide an apparatus capable of manufacturing an embodiment including the following embodiments or similar embodiments.

[0029] The principle of the method of the present invention will be described in detail below with reference to the accompanying drawings and embodiments: The invention's method is based on research into the effects of different mask material thicknesses and nose bridge strip thicknesses. It employs mechanical mask straps and fixing points to solve mask leakage problems. It was found that eliminating the nose bridge strip results in better performance and also solves the problem of later leakage. This is because even the optimal fixing points sometimes cannot prevent leakage caused by the nose bridge strip, as the strip is malleable and, when the mask moves due to talking, it no longer conforms to its new position, inevitably leading to noticeable gaps. However, achieving excellent results without the nose bridge strip is a significant improvement.

[0030] Since the initial inventive method, or starting point, of this invention was to find the method that minimizes gaps and reduces the tension of the mask straps, it was discovered that adding auxiliary fixing points is also beneficial. It was also found that without changing the existing mask body, there wasn't a significant breakthrough. Removing the nose bridge strip is a major breakthrough, significantly improving both the minimization of gaps and the reduction of tension in the mask straps, especially eliminating the gaps altogether. Removing the nose bridge strip or an equivalent structure greatly reduces the tension of the mask straps because there's no longer a rigid fixing point. By using one end of the mask strap to push the mask fabric towards the recesses on both sides of the nose, the nose bridge strip can be replaced, greatly improving the comfort of wearing the mask.

[0031] The second major invention is based on the different shapes of masks, the different materials of masks with the same shape, the different elasticity of the fastening straps, the different materials, strength, plasticity, deformability, and size of the nose bridge strip, or the different presence or absence of the nose bridge strip; each type of mask is tested to find the fastening point with the lowest tension of the fastening strap when there are no gaps between the edge of the mask and the face; or only the two fastening points at the top of the mask are selected. The phrase "no gaps" here sometimes means "virtually no gaps," which differs from the fact that most current masks have noticeable gaps. (Move down three paragraphs) The second major invention is that, over the years, the fixed points of face masks have remained unchanged. Different people have different face shapes, so it would be unreasonable to keep them the same. The thickness and material of the mask body also vary, as do the materials and sizes of the nose bridge strip. It would be unreasonable to keep them the same.

[0032] The existing masks, especially flat masks, have four fixing points at the four corners that are unreasonable. We should find and test to find the optimal fixing point position for this mask.

[0033] One principle is that the human ear is significantly higher than the top edge of a mask. Therefore, when a mask is worn, the ear loops exert an upward pull. However, the fixing points at the top of existing masks are located at the outermost edge of the mask, which weakens this upward pull considerably and can even create other undesirable forces. This increased pull can actually promote leakage. Therefore, existing masks tend to slip down over time, especially when speaking. Based on testing, the two fixing points at the top of the mask can be moved towards the bottom and center of the mask body, ideally no more than 30 millimeters downward, especially for flat masks.

[0034] It exerts an upward pulling force, reducing the force that straightens the nose bridge strip and increasing the upward pulling force, thus strengthening the pull on the sides of the mask and reducing side leakage. It also increases the upward pull on the center of the mask, reducing leakage at the top.

[0035] According to tests, the optimal positions for the two upper fixing points on the mask also include the area around the bridge of the nose. However, moving the fixing points towards the center of the mask is too large, so auxiliary fixing points, or semi-fixing points, can be set at the edges of the mask. The optimal positions for the two lower fixing points are usually moved upwards a certain distance from the existing positions.

[0036] The nasal bridge region refers to the area corresponding to the average size of the nasal bridge of a person, since the size of a person's nose varies.

[0037] This approach involves minimal changes and impact, with almost no change in cost. It significantly improves airtightness and comfort. Only by substantially increasing protective capabilities without significantly raising costs can we massively enhance epidemic prevention levels in the face of viral mutations and severe global pandemics.

[0038] The third major invention is that the mask's fixing strap still has a lot of untapped potential, utilizing the various positions and forces on the strap to help secure the mask.

[0039] That is, change the tension of the existing mask straps on the four fixed points of the existing mask, so that at least one end of the mask strap is not fixed at the original four fixed points of the existing mask.

[0040] The third major invention, the mask's fixing strap (mask cord, fixing strap), is actually quite complex and very important. It has much untapped potential, allowing for full utilization of the various forces acting from different parts of the mask. Alternatively, the side and center of the mask could be connected to the fixing strap.

[0041] Specific implementation of this method: Based on the force exerted by the mask straps on the face, four new fixing points can be found on the mask body or two new fixing points on the upper part of the mask to ensure a good seal between the mask and the face and reduce the tensile force of the fixing straps. Alternatively, based on experimental experience, the two fixing points on the upper part of the mask can be moved down from the upper edge, and the other two fixing points can be moved from the left and right edges towards the center. 1. Moving inwards and outwards: 1. At the two fixing points on the upper part of the mask, since the upper edge of the mask is not a rigid structure, these two fixing points should be moved inward a little, towards the bridge of the nose, which can enhance the lifting effect. The amount of movement is best between 0.5 and 3 centimeters. Moving them inward can use the mask straps to press down the edge of the mask, but if you move them too much, especially to the bridge of the nose area, it is best to set auxiliary fixing points on the edge of the mask.

[0042] 2. Move towards the center, to the bridge of the nose or the area around the bridge of the nose, and set auxiliary fixing points on the outside of the mask; II. Move up and down: The two fixing points at the top of the mask can be moved down slightly to increase the upward lifting force, but not too far down, because the mask body is soft, and moving it down too much will cause it to become loose at the top. Currently, the most common type of N95 mask is the one that is folded up on both sides for storage and opened by pulling the left and right sides apart when in use. Figure 8 For N95-shaped masks, the two top fixing points are positioned too far downwards from the top edge of the nose bridge, causing them to become loose at the top. Therefore, these two fixing points should be moved upwards, or to within 4 centimeters of the top edge of the mask. Ideally, the two fixing points should be moved vertically upwards, and if possible, slightly towards the nose bridge, finding a position that is neither too high nor too low. This utilizes the pressure from the mask's straps around the edges. Alternatively, for N95-shaped masks, the two top fixing points should be moved downwards by 1 to 4 centimeters from the top edge of the nose bridge, ideally vertically upwards to within 1 to 4 centimeters of the top edge. However, if they are moved vertically upwards to the edge of the mask, further upward movement should stop. For disposable or flat masks, because the fabric is softer, the downward movement should be 1 to 3 centimeters, or 0.5 to 2.5 centimeters; this refers to the vertical distance. Experiments and data regarding fixing point movement are provided at the end.

[0043] Ideally, the fixing points of a flat mask should be moved inward along both the X and Y axes. This allows the mask straps to better secure the mask's edges. Moving the fixing points inward toward the mask's center line reduces looseness in the middle of the mask. Furthermore, moving the strap fixing points inward ensures the straps press firmly against the mask's edges, effectively adding auxiliary fixing points and increasing the force exerted by the straps on the mask, thus making full use of the straps. This achieves a significant technical improvement with a small modification.

[0044] Alternatively, the mask's anchor point can be moved 5 to 30 millimeters towards the center of the mask's edge. For children's masks, this means moving the original anchor point to create a new one and then fixing it in place. This movement improves the mask's internal stability while also utilizing the mask straps to tighten the edges, preventing them from becoming loose. If the movement is too significant, additional anchor points can be added along the edges.

[0045] Alternatively, the two fixing points on the upper part of the mask can be located in the area of ​​the bridge of the nose or near the bridge of the nose, or auxiliary fixing points can be set on the edge of the mask. similar Figure 9 Alternatively, the two upper fixing points of the mask can be located in the bridge of the nose area, or near the bridge of the nose, eliminating the need for a nose bridge strip. Testing has revealed some fixing points, generally close to the left and right center lines of the mask. With the mask fabric, a nose bridge strip or similar auxiliary material can be omitted, with additional fixing points placed along the edges of the mask. The mask straps also replace the nose bridge strip or its equivalent. Their position can be, for example, below the original location where the nose bridge strip was fixed.

[0046] Ideally, the straps should be placed near the center lines of the mask, because the fixing points of the mask straps are relatively large, especially for welded ones. So even if the very front edge is near the center lines of the mask, the entire fixing point will still fall on the bridge of the nose area.

[0047] The concepts mentioned in this invention generally refer to average values. For example, the size of the bridge of the nose varies from person to person, and the bridge of the nose area is the average size of the bridge of the nose obtained based on different populations in each region. When wearing a mask, this bridge of the nose corresponds to the mask area. However, the "nearby area" referred to in this invention has a length and width that do not exceed the length and width of the main body.

[0048] The above implementation method can also be used for N95 and other three-dimensional masks.

[0049] like Figure 9The invention involves fixing an approximately V-shaped structure to the upper part of the mask body. This structure, referred to simply as the V-shaped structure, can be made of various materials. For example, the middle of the V-shape can be fixed to the outer surface of the mask, meaning that from each side of the mask body, the upper part has a half-V-shaped structure. The two upper corners of the mask are slidably connected to the V-shaped structure. During the wearing process, the two upper corners of the mask will slide downwards along the V-shaped structure and towards the left and right center lines of the mask. Taking the left side of the mask body as an example, half of the V-shaped structure is fixed to the mask body diagonally from the upper left corner to the lower right. During the wearing process, under the action of force, such as the arching force in the mouth and nose area of ​​the mask body with each exhalation, the upper left corner of the mask body drives the upper and left edges of the mask body to move towards the mouth and nose area in the center of the face, thus pressing it tightly against the face. The mask fabric in the mouth and nose area will arch more and more, forming a space conducive to breathing. This effect continues as the mask is worn, which is equivalent to a tendency for active defense. The V-shaped structure at the two corners of the mask can be extended to secure it to the face or head, or further secured to the face or head via other components, or attached to glasses using connectors such as ropes or elastic bands. This structure is much more effective when the mask body is without a nose bridge strip. Similarly, it can be used to fix an approximately inverted V-shaped mask strap at the bottom of the mask body. For N95 type three-dimensional masks, because there is a protruding part in the nose bridge area at the top of the mask body, an approximately inverted V-shaped structure is fixed at the top of the mask body. The V-shaped structure can use similar structures or other structures based on similar principles. For example, a V-shape originally consists of two segments, and then a vertical segment is added in the middle of the V-shape, resembling an upward-pointing three-pronged structure. Alternatively, the upper V-shape and the lower inverted V-shape of the mask can be spliced ​​together to form an X-shaped structure. These structures can use approximate shapes or incomplete shapes. For example, the V-shape structure can use a curved or deformed V-shape, or an incomplete V-shape. V-shaped structures and similar structures can be made from a variety of materials, such as rubber, plastic, and mask straps.

[0050] The V-shaped structure at the two corners of the mask can be extended or connected to other components, such as glasses, goggles, or head coverings, to secure it to the face or head. Figure 2 The V-shaped mask strap between the sliding fixing points extends through the sliding fixing points to become a mask strap that is fixed to a person's face, ears, or head (the headband of the mask).

[0051] like Figure 1 , Figure 2 Both ear-shaped and head-mounted earpieces can form L and V structures.

[0052] For applications such as 3D masks, see attached... Figure 8When the mask is opened and worn, the mask straps can be seen from the front. Specifically, the straps between the two sliding fixing points at the top of the mask form a small inverted V-shape. However, including the straps extending to the ears, the overall structure is still approximately V-shaped, thus utilizing the mask straps' mechanical properties relatively little. Therefore, to achieve better results, the shape of the 3D mask can be optimized.

[0053] The above implementation can be further combined with the following: Further improvements can be made by adding connections between the straps and the edges of the mask, such as using buckles, adhesive, or clamping structures, or fixing the straps to the edges of the mask after the mask has been put on and adjusted; alternatively, a sliding connection can be used between the straps and the edges of the mask, or the straps can be pressed through the seams or holes of the mask during production.

[0054] The number of fixing points for V-shaped or inverted V-shaped fasteners on the upper part of the mask body is not limited to a certain number.

[0055] Alternatively, two or four auxiliary fixing points can be set on the mask, and the fixing straps can be connected to the mask through the fixing points. The dense arrangement of the fixing points can increase the fit of the mask to the face, so the fixing straps do not need too much tension, reducing the tension on the ears or head; or side branches can be added to the fixing straps to connect to the auxiliary fixing points on the mask. Another embodiment (a similar embodiment where the two fixing points at the bottom of the mask are moved upwards compared to the existing ones): like Figure 3 The mask body 9 has two upper and lower fixing straps 11 connected to each of the left and right sides. When wearing the mask, both upper and lower fixing straps are put over the same ear. This ensures that the middle of the mask side is also pulled tight and fits snugly against the face, preventing gaps or gaps from forming between the mask side and the face. Mask cream or liquid can still be applied to the sides of the nose to prevent gaps from forming between the mask and the face. The principle behind this is to add more fixing points to the sides of the mask body, for example, using three fixing points. Similarly... Figure 4 One end of the strip-shaped fixing strap is fixed near the middle of the side of the mask body 9, and the other end is fixed to the original fixing strap 11 of the mask. After being fixed by the original fixing strap, the strip-shaped fixing strap is tightened to pull the middle of the side of the mask tight against the face. One end of a section of the fixing strap is fixed to the middle of the side of the mask body, and the other end is fixed to the original ear loop fixing strap of the mask; or, if the original mask body 9 is tied to the head with upper and lower fixing straps 11, at least one additional fixing strap is added in the middle of the original upper and lower fixing straps of the mask body. The fixing point of the additional fixing strap on the side of the mask is preferably located in the middle of the side of the mask.

[0056] Of course, there are other advantages as well. Distributing the tension of the mask across multiple straps reduces the constricting force on the face, ears, and head, minimizing skin irritation. Furthermore, by simply flipping the bottom straps on both sides (the straps above the ears below the ears, and the straps below the ears above the ears) and putting them over the ears, the lower half of the mask can also cover the nose, leaving the mouth exposed for activities like drinking. For easy identification, the top and bottom straps can be distinguished by different colors or patterns. Similarly, the upper half of the mask can also be used to cover the mouth, leaving the nose exposed.

[0057] The problems of ear pain from wearing masks for extended periods and leakage from the sides of the mask have remained unresolved. This design solves both problems at once and unexpectedly adds other functions, such as allowing the mouth to be exposed for drinking or eating, or the nose to be exposed for scratching.

[0058] For masks with built-in straps, to enhance side leak prevention, if the mask straps are wide, add a short strap, connecting one end to the center of the side of the mask and the other end to the main strap. Alternatively, this short strap can be used as a central strap, and it can be wider than the strap at the bottom of the mask (or replaced with a central and top strap), forming a single piece of elastic fabric. The width of this elastic fabric narrows towards the ears from the edge of the mask. This eliminates the need to connect the middle sections of the main strap to the rest of the mask. Essentially, this side leak-proof design means that as long as the center of the side strap connects to the main strap, the side is essentially leak-proof.

[0059] Alternatively, the two fixing points at the bottom of the mask can be moved up by 5-20 mm or 5-25 mm compared to the existing ones. Thicker materials can be moved up even more, which helps prevent leakage from the sides and middle.

[0060] Alternatively, surface materials that promote unidirectional movement can be used to reduce or prevent leakage from the sides of the mask. These unidirectional movement surface materials essentially only promote unidirectional movement, hence the name. There are various types of such surface materials. For example, one method involves fixing many small particles onto a flat material. One side of the particles is vertical, and the other side is an inclined plane, with all the inclined planes facing the same direction. This unidirectional movement material is fixed to the mask surface and pressed under the mask straps. The mask straps can only move in the direction of the inclined plane with the particles; moving in the opposite direction, i.e., the vertical plane opposite the inclined plane, will be blocked by the vertical plane. Another example is fixing tiny particles that are bent to one side. These particles allow two objects to move relative to each other in one direction. When moving in the other direction, the tiny particles are lifted up, obstructing the relative movement of the two surfaces. The two fixing points at the bottom of the mask are located on the mask body inside the edge, and the mask straps are pressed against the bottom edge of the mask before being fixed to the ears or head. The lower side edge of the mask has a surface material that allows for one-way movement relative to the mask straps. This surface material, which is no more than 1 cm wide, can be used to make the mask as small as possible. When the mask is put on, the mask straps at the bottom of the mask press against this one-way moving surface material, allowing the lower part of the mask to move downwards relative to the mask straps, but not upwards. As the face and mouth move, the side edge is pulled downwards and straightened, preventing gaps from appearing on the two sides of the mask.

[0061] This includes discovering that moving the two fixing points at the bottom of the mask upwards can reduce the gaps on the sides.

[0062] For optimal results, the anchor points should be positioned downwards along the bridge of the nose. Since the top edge of the ear is generally above the top edge of the mask, the anchoring straps exert a diagonal pull on these points. This diagonal pull brings the fabric along the top edge of the mask closer to the face, thus reducing the tension on the anchoring straps and making the mask more comfortable to wear. Alternatively, the anchor points can be positioned below the original nose bridge anchor point, which also works well, as this position is approximately 15 millimeters from the top edge of the mask.

[0063] The structure employed in this invention, such as using two fixing points on the left and right sides of the elastic material, or a fixing point of equal width to the two fixing points, can achieve the following: 1. The mask fabric will not arch at the bridge of the nose; 2. Two forces are applied to both sides of the bridge of the nose at the upper edge of the mask: an outward pulling force from the bridge of the nose and an inward pushing force from the outer side (at the auxiliary fixing point). This allows the mask fabric to better act between the two forces, filling the large recesses on both sides of the bridge of the nose. With a nose bridge strip, these two forces continuously promote the nose bridge strip and mask fabric to bend into an arc shape similar to the large recesses during wear, maintaining a close fit; while with a mask without a nose bridge strip, there is no need for the user to pinch the nose bridge strip.

[0064] If the upper and lower fixing straps used to tie the mask to the head are inelastic, then the elastic material used to fix the upper edge of the mask can be replaced with a non-elastic material.

[0065] When the fixing holes or ring structures are made into elongated ovals or grooves and positioned vertically, the long fixing strap can not only pass through the holes or rings but also move up and down within the grooves. This allows the mask body to undergo slight positional changes relative to the fixing strap, enabling adjustments to fit the face shape and reducing leakage. Furthermore, adhesives or buckles can be used to temporarily lock the fixing straps, holes, or ring structures in place. After the mask body is positioned correctly, the relative positions of the fixing straps and the fixing holes or ring structures can be locked in place.

[0066] In such Figure 6 On the upper part of the mask, on both sides of the nose, there is a section of elastic material 129. The two ends of the elastic material are fixed to the mask. The connection point of the upper part of the fixing strap on each side of the mask is not fixed to the mask body 9, but is connected to the outer end of the elastic material 129 on each side. The outer end of the elastic material 129 is not fixed to the mask. Alternatively, a long fixing strap can be broken at the bridge of the nose, and the two ends of the break can be fixed to the bridge of the nose of the mask body.

[0067] The above structure also applies to other masks, such as N95 masks. Figure 8 A ring structure 31 is fixed on the mask body 9, and the head of the fixing strap 11 passes through the ring structure 31 and is fixed on the mask body.

[0068] In summary, the preceding embodiments present a more optimized method.

[0069] Key issues during implementation: This type of mask, using a single long strap, easily forms an arch at the bridge of the nose if there's no nose bridge strip. Even with a midpoint anchor point, the mask doesn't fit snugly, resulting in poor leak-proof performance. The same applies to masks with a nose bridge strip. However, by extending the straps on the upper left and right sides of the mask to secure them at the nose bridge, the welding points on these straps pull the mask diagonally outwards towards the face, ensuring a good fit. This can be achieved by placing two anchor points (or one anchor point equal in width) on the mask along the middle of the long strap. The strap extends from these anchor points to the auxiliary anchor point on the side, creating a downward diagonal pull on the sides of the nose bridge.

[0070] This combination of fixing points and auxiliary fixing points causes the fabric of the mask body on both sides of the nose bridge to tend to separate further back and forth. The more separated the fabric is, the closer it will be to the face, filling the hollows on both sides of the nose bridge. Simply using strips attached to the mask or fixing the fixing straps to the surface of the mask will not have this effect.

[0071] This design fundamentally changed the way masks are fastened over the decades, whether it's a flat mask or other types like an N95. Now, the mask straps can be tightened without hurting the ears.

[0072] This design also has a significant function: it allows the wearer to easily identify the midpoint of the top of the mask, enabling them to bend it into an arch shape that fits over the bridge of the nose. This prevents the mask from being worn crooked. Most existing masks lack this structure, making them prone to being worn crooked, resulting in uneven force on both sides, deformation, and reduced protective effectiveness. Moreover, wearing the mask crookedly or at an angle can negatively impact the wearer's appearance.

[0073] Based on the above embodiments, the following content and implementation are obtained.

[0074] In the above embodiments, the connection between the fixing strap and the edge of the mask body can be achieved using a snap-on, adhesive, or clamping structure. After putting on the mask and adjusting it, the fixing strap can be secured. Alternatively, the connection between the fixing strap and the edge of the mask body can be a sliding connection.

[0075] Other implementations: In one embodiment, the device further includes: a fixing strap 11 and a fixing structure for fixing the fixing strap 11 to the mask body 9; the mask body 9 is provided with fixing holes or fixing grooves; in this embodiment, the fixing holes or fixing grooves are all elongated; the fixing structure is disposed on the mask body 9; when the fixing structure fixes the fixing strap 11 to the mask body 9, the end of the fixing strap 11 is fixedly disposed in the fixing hole or fixing groove; when the fixing structure releases the fixing state of the fixing strap 11 and the mask body 9, the end of the fixing strap 11 slides in the fixing hole or fixing groove.

[0076] In one embodiment, the fastening structure is a snap fastener or Velcro.

[0077] In one embodiment, the mask body 9 has an elongated through hole; after the end of the fixing strap 11 passes through the through hole, the outer surface of the fixing strap 11 abuts against the inner wall of the through hole.

[0078] To address the issue of leakage from the sides of the mask, in one embodiment the mask strap is a wide fixing band, that is, fixing band 11 is a flat fixing band; In one embodiment, a short fixing strap is also included, one end of which is connected to the middle of the side of the mask body 9, and the other end is connected to the fixing strap 11; In one embodiment, the fixing strap 11 includes: elastic fabric and mask strap; one end of the elastic fabric is attached to the mask body 9, and the other end is fixedly connected to one end of the mask strap; the other end of the mask strap is attached to the mask body 9. Specifically, an intermediate fixing strap is added. The intermediate fixing strap and the fixing strap fixed at the bottom of the mask can be made wider (or replaced by the intermediate fixing strap and the upper fixing strap 11), thus connecting them together. That is, the intermediate fixing strap 11 and the fixing strap 11 fixed at the bottom of the mask form a single piece of elastic fabric, which narrows towards the ear from the edge of the mask. This eliminates the hassle of connecting the middle section of the intermediate fixing strap to the upper or lower fixing strap 11. In essence, this side leak-proof design means that as long as the middle part of the side can be connected to the fixing strap 11, the side can basically prevent leakage.

[0079] In one embodiment, the mask body 9 is provided with a plurality of auxiliary fixing points; the fixing strap 11 is provided with an auxiliary fixing strap that is fixedly connected to the plurality of auxiliary fixing points one by one; this also serves to prevent leakage on the extended side.

[0080] In one embodiment, the mask includes: a fixing strap 11, a mask body 9, and a leak-proof structure to prevent droplets from entering or splashing out of the mask body 9; the fixing strap 11 is disposed on the mask body 9; and the leak-proof structure is disposed on the inner surface of the mask body 9.

[0081] Alternatively, simply move the original two fixing points of the mask straps at the bottom of the mask upwards by 5-20 mm, or if the mask material is thick, move them upwards by 5-25 mm. This moves them upwards to the optimal fixing points, which also controls the leakage on the sides.

[0082] Key points: (Fourth major invention) During the implementation of this invention, another significant discovery was made: a unique squeezing and pushing structure for face masks. Existing masks, especially disposable ones, tend to leak more with wear. The mask straps pull the fabric of the mask body to the sides. In contrast, this invention provides multiple squeezing and pushing effects. For example, because the ears are higher up, the mask straps bend upwards from the auxiliary fixing point towards the ears, creating a squeezing and pushing effect on the auxiliary fixing point. This is especially beneficial for masks without nose bridge strips, allowing for greater freedom of movement. As the mask is worn, the upper edge of the fabric moves towards the center, filling the gaps on both sides of the nose bridge. Of course, the better the flexibility of the mask fabric, the better the effect. Using a soft and thin material easily causes wrinkles, while using a stiff and thick material restricts bending and movement.

[0083] Therefore, in masks without nose bridge strips, when putting the mask on, you pull the mask straps to your ears. During this pulling and releasing motion, as analyzed earlier, the upward pull creates a squeezing and pushing effect on the auxiliary fixing points. This force is likely the strongest. Releasing the mask straps causes them to return to their original position on the ears, creating a pulling effect. The auxiliary fixing points, under the squeezing and pushing of the mask straps, push the mask fabric towards the indentations on both sides of the nose bridge, similar to how you manually bend the nose bridge strip in a mask. Increasing the squeezing and pushing effect enhances the automatic nose bridge shaping. The earliest implementation of this invention involved pressing a small, semi-sliding, semi-fixed seam along the upper left and right edges during production. This created a high frictional force between the mask straps and the mask fabric. Alternatively, this could be achieved by increasing the friction between the mask straps and the squeezing and pushing mask fabric. During the wearing process, the mask fabric will be pushed to fit snugly against the face starting from the auxiliary fixing points. These designs enhance the squeezing and pushing effect of the mask straps when released, but reduce the squeezing and pushing effect of the ear loops when pulled up or during normal use. The high friction is suitable for thin mask fabrics that do not require much squeezing and pushing force; otherwise, the mask may easily arch and form gaps during the squeezing process. Since the mask fabric is too thin, it is easy for the mask to arch and form gaps during the squeezing process, so the auxiliary fixing points can be moved slightly towards the center line of the left and right sides of the mask.

[0084] The face width of this invention can also be simply referred to as the junction of the front and side of the face. The auxiliary fixing point corresponds to the wearer's face width or is slightly smaller, such as within 2 cm. The overall effect is better, that is, the mask strap at the auxiliary fixing point is less affected by various factors when squeezing and pushing the mask body to fill the gaps. In addition, the mask cloth is less likely to arch due to the mask cloth being too long or the squeezing and pushing force being too great during the wearing process. Moreover, compared with openings, openings are more effective than openings or loops.

[0085] The implementation of auxiliary fixing points, regardless of the method—such as openings, seams, or ring structures—is acceptable as long as it's a sliding connection. The key is that the auxiliary fixing points should ideally be located around the width of the face or within the width of the face. This provides good pushing force on the mask fabric towards the center of the mask. Furthermore, the implementation of the auxiliary fixing points should ensure that the mask straps do not press against the mask fabric located outside the auxiliary fixing points, as this creates significant frictional resistance. Current designs and masks, in order to secure the mask, inevitably press against the outermost edge of the mask to fix it in place. This results in high friction with the face, poor pushing effect, and if the auxiliary fixing points are too far outward, the fabric used for pushing is too long, easily causing arching, especially when first put on the ears.

[0086] In this embodiment, the auxiliary fixing points on the left and right sides of the mask are designed as holes or slits, which are just or less than the width of the face. This provides a good pushing effect and reduces the pressure on the mask fabric from the mask straps. Unlike existing masks, which are designed to be wider than the face for protection, the most important implementation of the auxiliary fixing points in this invention is to make slits or holes on the side edges of the mask, generally 5 to 15 millimeters from the edge. When worn on the face, this position is close to the width of most people's faces and is suitable for most mask fabrics. Therefore, this embodiment itself has a very good effect. Combined with the dynamic effect of the mechanical mask straps, the overall airtightness of the mask increases as it is worn, and the protective power becomes stronger.

[0087] The mechanical ear loops of a mask, combined with auxiliary fixing points, exert this pushing effect during wear. Because droplets follow a parabolic trajectory, preventing leakage at the top edge of the mask is crucial, and it also helps prevent fogging of glasses caused by leakage. However, with ordinary masks, the gap at the top edge gradually widens throughout the wearing process.

[0088] This effect is similar to an AI-powered mask. When you first put on the mask, it adjusts itself, as if teaching the mask how to reduce leakage. Then, throughout the wearing process, the mask will continuously reduce leakage according to what you taught it.

[0089] This type of mask is significant and useful because many people around the world don't know to pinch the nose strip when wearing a mask to reduce leaks at the top edge. Therefore, existing disposable masks pose a risk of leakage. For example, children and lazy individuals may not want to frequently pinch the nose strip to reduce leaks. Furthermore, people in underdeveloped areas with poor hygiene education often neglect these important details. This invention reduces the risk of leakage for these individuals. Frequently pinching the nose strip can cause cross-infection by touching the mask.

[0090] The mask body has holes or slits on both sides of the upper edge. These holes or slits are smaller than the width of the wearer's face. To prevent the corners of the mask from curling up, they can be no more than 3 centimeters inward. Alternatively, slits can be made on both sides of the upper edge of the mask body, extending inward from the side edge. The slits can be made without penetrating the mask body, allowing the wearer to tear them towards the center line of the mask according to their face width. Alternatively, as in the previous embodiment, the auxiliary fixing points can be made into elongated grooves. The length of the grooves can be adjusted using buckles, tightening, or adhesive, allowing the spacing of the auxiliary fixing holes on the left and right sides of the mask straps to be as close as possible to the width of the face. For masks made of materials much thicker than ordinary masks, enhancements can be made: for example, making the mask fabric around the auxiliary fixing points that contacts the face smooth, or even making the mask fabric that contacts the mask straps smooth. For instance, the outer surface of the mask around the holes or slits of the auxiliary fixing points, towards the center line of the mask body, can have a surface material that allows for unidirectional movement relative to the mask straps, as described in the previous embodiment. Of course, if the mask fabric uses a memory material, an even better effect can be achieved.

[0091] Face width refers to the width of the face, generally the distance between the highest points of the two cheekbones. In this invention, face width refers to the average face width of wearers in the region of use. The auxiliary fixing point at the face width means the position of the mask corresponding to the face width after it is put on. While holes or seams can be moved towards the center line of the mask, they should not be moved too far to ensure that the upper corners of the mask do not curl up due to the lack of straps. The auxiliary fixing point is set at the average face width; it can also be slightly offset outwards or inwards, for example, within 5 millimeters, but the effect will be slightly worse. Alternatively, the auxiliary fixing point can be set within a range of ±5 millimeters between the left and right sides of the face width.

[0092] Punching holes or seams can also be done in this way: use a loop instead. On both sides of the upper edge of the mask, there is a structure similar to a loop. The mechanical mask straps pass through the loop. Since it has reached the upper edge of the mask, the ear straps will be tilted upwards and put on the ears after passing through the loop. This will not press on the mask fabric outside the loop, and there will be no resistance. It is beneficial for the mechanical mask straps to push the fabric on both sides of the mask towards the middle by squeezing the loop.

[0093] The invention reveals a small detail with a significant impact, resulting in a major technological effect. The design minimizes the movement of the mask fabric due to pressure, instead facilitating the movement of the mask fabric along the center line of the mask by the mask straps, while simultaneously ensuring a snug fit against the skin. This structure also fills gaps in the mask and reduces side gaps.

[0094] Furthermore, during the wearing process, the gaps between the mask and the face will gradually decrease. This is because breathing and speaking will cause the mask to move forward towards the face, which in turn will push the mask fabric forward towards the mouth and nose. Similar to the mechanical squeezing and pushing of the mask straps, the upper edge of the mask fabric will continuously fill the gaps on both sides of the bridge of the nose, and the fabric on both sides of the mask will continuously move forward and towards the center to fit tightly against the face.

[0095] This application also makes the mask appear to have an automatic effect. A significant discovery and invention is that this similar structure utilizes the action of the mask straps or facial movements to continuously move the mask fabric closer to the face. By incorporating auxiliary fixing points on the mask and employing a structure that reduces or avoids the mask straps pressing down on the mask fabric and affecting its movement, the mask fabric moves from the auxiliary fixing points relative to the mask straps towards the face under the action of the straps or facial movements. This can be implemented as follows: auxiliary fixing points are located on the left and right sides of the upper edge of the mask, positioned close to or smaller than the wearer's face width. From these auxiliary fixing points, the mask straps leave the mask and head towards the back of the ears or head. Opening holes or seams is easy to implement, but if the auxiliary fixing points are loop-shaped, the mask straps must press down slightly on the mask fabric after passing through the loop before leaving the mask and heading towards the back of the ears or head, allowing for further movement towards the center of the mask. Alternatively, holes or seams can be made on the mask body at the width of the wearer's face.

[0096] This mask structure fills gaps and reduces side gaps. With existing masks, because the nose moves forward and upward while the chin moves downward, the sides of the mask are pulled up and down. When pulled excessively, gaps appear. This invention, through the combined effects of a mechanical mask strap, auxiliary fixing points, and the absence of a nose bridge strip, allows the auxiliary fixing points at the top of the mask to move flexibly according to the multi-dimensional movement of the face, gradually reducing side gaps and achieving automatic adjustment. Existing masks have a nose bridge strip along the top edge, which occupies almost the entire width of the mask, restricting both lateral and longitudinal movement. This folded structure and the absence of a nose bridge strip work well together.

[0097] Therefore, when wearing a mask, the gaps between the mask and the face are effectively reduced.

[0098] Because this structure has this effect, it can also be used in other parts of the mask. Auxiliary fixing points are provided at the edge of the mask. These auxiliary fixing points and the mask straps are slidably connected. After passing through the auxiliary fixing points, the mask straps move horizontally and / or vertically towards the center of the mask and are then fixed at a new position as fixing points. The auxiliary fixing points are designed to reduce or prevent the mask straps from pressing down on the mask body and affecting the movement of the mask fabric. In other words, the auxiliary fixing points are designed to reduce or prevent the mask straps from squeezing and pushing the mask fabric to fill gaps. With this structure, under the action of the mask straps or the movement of the face, the mask fabric moves relative to the mask straps at the auxiliary fixing points towards the fixing points. Since the fixing points are closer to the center of the face than the auxiliary fixing points, they also move towards the skin to fit snugly.

[0099] Important discovery and implementation: (Fifth major invention) The mask can be shaped to fit the bridge of the nose, including by using methods such as folding.

[0100] Flat masks, such as disposable masks, have traditionally not been folded in half along the center line, hence the name "flat mask." This invention is the first to adopt a folding structure for flat masks, including disposable masks, by folding the left and right sides along the center line, with the inner surface folded inside the outer surface. Folding flat masks offers significant technical advantages: they are convenient to use, eliminating concerns about wearing them askew or trying to center them; another benefit is that the center fabric rises away from the mouth and nose, preventing contact with moist lips; they are also easy to store and take up little space; and the folded flat mask tends to fold towards the face, reducing gaps around the sides.

[0101] Existing N95-shaped masks are generally folded in half from left to right, for example... Figure 8 However, the mask was folded in half from left to right without leaving any gaps in the middle, and the nose bridge strip was folded into an angle close to 0 degrees. So when the mask was put on the face, it did not fit the bridge of the nose.

[0102] Another significant discovery of this invention is that by folding the mask in half, that is, bringing the left and right sides together, the angle and curvature at the bend of the nose bridge strip allows for a gap between the two folded sides of the mask. For example, a gap of about 5 mm or 3 to 8 mm can be left. This bend has a certain angle and curvature, which has many advantages. For example, because there is this curvature in the middle of the nose bridge strip, the nose bridge strip is easier to fit the nose bridge when the mask is worn, reducing gaps. Existing flat masks, such as disposable masks, especially those using the mechanical mask straps of this invention and lacking a nose bridge strip, offer even greater technical advantages: When folded, the material at the center line of the mask maintains its curvature during storage, making it very easy to fit the bridge of the nose when worn. Furthermore, the folded mask tends to protect the bridge of the nose on both sides. Simultaneously, the fabric along the top edge of the mask, pushed by the mechanical mask straps, easily fills any gaps on both sides of the nose. In other words, this folding shapes the nose bridge at the center line. This invention's disposable mask eliminates the need to pinch the nose bridge strip; simply putting it on fills the gaps on both sides of the nose, effectively preventing gaps by pinching the nose bridge strip. Wearing it is extremely simple. It's essentially a smart mask that can adaptively adjust to the wearer's face and nose, and this gap-filling effect continues throughout the entire wearing process, making it a type of active protective mask. In specific production, it can also be implemented in the following ways: in addition to folding a single mask directly in half, for multiple masks, a certain number of masks are stacked together and then folded in half. This allows a gap to be left in the middle of the two sides of the folded mask before packaging and other processing.

[0103] This means that at least one end of the mask strap is not fixed to the original fixing point of the existing mask. It is equipped with a structure that pushes the mask fabric towards the face. You no longer need to pinch the nose bridge strip when wearing the mask. You just need to put it on your face to fill the gaps on both sides of the nose bridge. It is equivalent to helping the wearer pinch the nose bridge strip to prevent gaps. It is very easy to wear. As for the existing masks with nose bridge strips, they fit the curve of the face more closely when worn.

[0104] Furthermore, viewed from above or below, folding the mask in half creates a V-shape, with the pointed end of the fold pointing in the same direction as the tip of the nose. Alternatively, the mask can be folded into a W-shape, with the pointed end of the fold pointing in the same direction as the tip of the nose, while the two side folds fall into the hollows between the bridge of the nose and the cheekbones, allowing it to fit closer to the face more quickly. In addition, folding the mask into a W-shape significantly reduces its length, making it easier to carry and store.

[0105] Alternatively, the mask can be pre-shaped to resemble the curves of a person's face, including below the eyes and the bridge of the nose. This mainly involves pre-shaping the upper edge of the mask into three peaks. When the mask is worn on the face, the three peaks cover the left cheekbone, the bridge of the nose, and the right cheekbone, respectively. This can be achieved by shaping the mask at least in one of the following stages: production, processing, packaging, transportation, or storage. Alternatively, an auxiliary frame with three peaks can be used to fix the upper edge of the mask to maintain its shape when it is stored.

[0106] Alternatively, memory-memory materials can be used to shape the mask to conform to the bridge of the nose under the same temperature and humidity conditions on a person's face. Then, by changing the conditions and flattening the mask, it returns to its original shape when worn on the face, adapting to the temperature and humidity of the face. Many similar memory-memory materials exist, and will not be detailed here.

[0107] Pre-shaping the mask to conform to the bridge of the nose has yielded significant technical benefits, greatly enhancing the mask's almost automatic function. When the mask straps push the mask fabric towards the face at the support points, masks made of excessively thick fabric may not hold their shape. Pre-shaping the mask to conform to the bridge of the nose causes the fabric to bend, creating numerous tiny creases. When the fabric is initially held in place, these creases cause it to bend and move towards the face. This is why the folding technique in this invention differs from existing mask folds; it emphasizes a certain degree of curvature at the fold, leaving gaps on both sides of the mask to create more subtle creases over a larger area. Therefore, even if a pre-shaping technique for conforming to the bridge of the nose is not used, the upper edge of the mask, especially the area corresponding to and around the bridge of the nose, should be pre-treated by bending or crumpling to create numerous tiny creases or wrinkles along the entire length of the mask.

[0108] This represents a significant technological advancement in face masks, especially disposable masks. It is of great importance to those in underdeveloped areas, those with poor awareness of protective measures, and those who do not know how to wear masks properly.

[0109] Of course, if the mask fabric is combined with materials with special properties, it can achieve even better and more effective results.

[0110] Further implementation: This embodiment is also an important embodiment of this type of structure in the invention. In order to be comfortable to wear and widely accepted, the lip area needs to have a supporting structure to prevent the mask from touching the lips. This makes the ventilation area of ​​the mask at the mouth and nose large.

[0111] Because most existing flat masks have folds at the lips, for flat masks, folding the left and right sides along the center line will fold the inner surface of the mask inside the outer surface. When the mask is opened, there should be no folds in the area corresponding to the lips, but folds in the area outside the lips; or, when the mask is opened, there should be no folds in the area corresponding to the upper lip, but folds in the area outside the upper lip. The folds should not be placed in the area corresponding to the lips, but rather above and below the lips. This is because the lower lip is the most likely part of the mask to protrude and touch the chin, or at least in the area of ​​the mask facing the lower lip, the horizontal height of the entire fold closest to the lower lip should not be higher than any part of the upper lip. This way, even if the fold is at the height of the lower lip, it will not touch the lower lip when the mask is unfolded in the middle. When the mask is worn, the middle fabric will stand up and move away from the mouth and nose, thus avoiding contact with the moist lips. This is especially important for masks without a nose bridge strip.

[0112] Fold the mask in half lengthwise along the center line. Utilize the raised center of the horizontal folds in the flat mask to support the mouth and nose area. Simply folding it in half for temporary use is ineffective; the best results are achieved by creating a crease along the center line of the fold. Ideally, there should be at least four horizontal folds.

[0113] To further enhance the effect, regardless of whether the mask is folded in half or not, a plate-like or strip-like object can be horizontally provided in the middle area of ​​the mask. The key is that the length of the plate-like or strip-like object must be long enough, the same as the length of the folds, so that there is no gap (existing technology cannot achieve the desired effect due to gaps). In other words, it can reach the ends of the left and right side folds of the mask (side welding points), thus providing support to the face.

[0114] The most crucial part of this support strip is its two ends. It must abut against the ends of the folds on both sides of the mask, indirectly supporting the face. Only in this way can it provide support, echoing the key point proposed in this invention. Existing technologies or products haven't addressed this issue, thus failing to achieve the desired technical effect. Furthermore, the welding of the mask sides during production often results in welding onto plate-like or strip-like objects, a problem that remains unresolved. Mask production equipment can address this by having a device that fixes a strip of the same length as the folds in the middle of the mask, or a device that fixes the strip within the mask's interlayer. The welding rollers or welding rods at the pressing point of the mask sides have a notch in their pattern to prevent welding onto the plate-like or strip-like objects in the middle of the mask.

[0115] The two ends of the plate-like or strip-like material must abut against the ends of the folds on the left and right sides of the mask. This is because if the support strip is already abutting against the left and right sides during production, the welding of the several layers of fabric on the left and right sides of the mask may press against the ends of the support strip, causing them to weld together, which is unsightly and affects the protection of the inner and outer surfaces. This invention solves this problem. In ultrasonically welded masks, at the joint where several layers of fabric are welded together on both sides of the flat mask, a recessed notch is left unwelded at the end of the plate-like or strip-like material on the inner side of the joint to prevent the several layers of fabric from being welded together with the ends of the plate-like or strip-like material.

[0116] You can also insert a plate-like or strip-like object into the fold closest to the lower lip on the inner surface of the mask to prevent it from loosening or shifting.

[0117] Alternatively, horizontal welding lines can be welded into the mask fabric between the middle of the mask or below the bridge of the nose and above the mouth. When the mask is worn, the welding lines support the face.

[0118] The plate-like or strip-like parts on the mask fold in half along with the mask. When the mask is opened on both sides for use, the middle of the mask is supported by the plate-like or strip-like parts, causing the two sides of the mask to tend to close together. This promotes the two sides of the mask to close together and move towards the face. In particular, the plate-like parts are made of plastic rather than brittle materials or materials with memory. After being folded and shaped along with the mask, when the mask is opened on both sides for use, the two sides of the plate-like parts are also opened, but there is still a tendency for them to close together.

[0119] Plate-shaped objects can also be replaced by strip-shaped objects.

[0120] Further, cardboard can be used as the sheet material. The front and back of the cardboard can be made of different materials or processed using different techniques, causing the cardboard to naturally bend in one direction. For example, one side of the cardboard could be waterproof while the other is not. During mask use, the non-waterproof side absorbs moisture from the wearer's exhaled breath, causing it to expand. The waterproof side does not expand, and the expanding side encloses the non-expanding side, causing the cardboard to bend. When attached to the mask, the inner curved side of the cardboard faces inwards towards the face, while the outer curved side faces outwards, which helps to push the mask material away from the face. Even if the mask is folded in half and then unfolded, the cardboard maintains its curved shape. This utilizes materials science. Furthermore, folded cardboard is easy to unfold into various angles. Similarly, cardboard can be replaced with other materials that use different materials or processing techniques on the front and back, causing the material to naturally bend in one direction.

[0121] The overall design improves leak prevention along both the top and sides of the mask. Because the plate-like or strip-like parts keep the mask away from the mouth, preventing lipstick stains, it can be used folded in half or not before application, and can also be used with existing masks.

[0122] The horizontal welding lines also serve another purpose, not necessarily to support the face. For 3D masks like N95 and KF94, which don't use a nose bridge strip, when the mask fabric on both sides of the nose bridge collapses into the large indentations on either side of the nose bridge after being squeezed, horizontal welding lines are welded into the mask fabric between the area below the nose bridge and above the mouth to maintain the mask's 3D spatial structure. Two or more welding lines are used. If there is only one welding line, it must be thicker than existing welding lines on masks, or the welding line must be adjacent to an auxiliary fixing point or anchor point on the edge and continuously connect from the left edge to the right edge. This welding line configuration separates the deformable area of ​​the nose bridge from the 3D area of ​​the mouth, allowing the deformable area of ​​the nose bridge to deform while the 3D area of ​​the mouth remains unchanged.

[0123] To make the mask fabric in the nose bridge deformation area more flexible, the fabric in this area can be softened. For example, the welding patterns in this area can be reduced. The welding patterns that originally fixed the nose bridge strip were used to harden the mask fabric in this area. By making the area of ​​the mask facing the nose bridge a soft, deformable zone, the mask fabric can better fit snugly around the nose bridge.

[0124] You can also add more fabric to the bridge of the nose area of ​​the mask; in addition to adding more mask fabric.

[0125] Other important embodiments: Flat face masks have several horizontal folds, each creating a small pleat. When using the mask, these pleats can be flattened to increase the surface area. The topmost fold should be on the outside of the mask, not on the inside, so it doesn't obstruct the view between the remaining upper part of the mask fabric and the face. This allows the remaining upper part of the mask fabric to move towards the face and fill the gaps on both sides of the nose. Alternatively, without swapping the inner and outer layers of fabric, the original folds can be kept in their original direction. The mask can be rotated 180 degrees along its surface, with the bottom becoming the top and the top becoming the bottom – essentially reversing the mask's top and bottom.

[0126] Similarly, setting a similar connecting structure at other locations on the mask, such as the lower edge, can also achieve the same effect. Specifically, the lower fixing point of the mask strap is fixed to the chin area, and there are auxiliary fixing points on the lower side of the mask. This allows the mask fabric on both sides of the chin to fit closer to the face.

[0127] For 3D masks like N95 and KF94, further improvements can be made by adding a layer of fabric around the nose area for better results. Figure 8 The mask has three welding and cutting lines on the right side: top, middle, and bottom. Simply increase the angle between the top and middle sections. This allows for more mask fabric to better fill the gaps on both sides of the nose. Ideally, increase the angle between the top and middle welding and cutting lines, using methods such as... Figure 5 The structure is such that the upper and middle sections are not directly connected, but rather connected by a horizontal welding and cutting line. Alternatively, the mask fabric may have multiple protruding sections at the upper left and right corners or at all four corners during the cutting process compared to existing masks. Figure 7 The original mask had a straight edge, or even a concave edge, or the mask fabric was cut with more protruding fabric than existing masks. Specifically, it could be made into a rounded protrusion, or the top edge of the mask could be extended, or two rounded protrusions could be made on the left and right sides in the middle.

[0128] The two sliding fixing points at the top of the mask are moved upwards.

[0129] Adding more fabric to the nose bridge area of ​​the mask is a significant increase compared to existing masks. This could be a dimension greater than 3 millimeters in one direction, or the average length of the upper edge of the mask where the nose bridge area is located being 5-16 millimeters longer or more than 5 millimeters longer than the average length of existing similar masks.

[0130] Alternatively, soften the fabric of the mask at the bridge of the nose to reduce the welded patterns.

[0131] Alternatively, horizontal welding lines can be welded into the mask fabric between the area below the nose bridge and above the mouth. Two or more welding lines can be used, or if there is only one welding line, it should be thicker than the welding lines on existing masks; and / or the welding line should be adjacent to the auxiliary fixing point or fixing point on the edge and continuously connected from the left edge to the right edge; the welding lines should separate the nose bridge deformation area and the mouth three-dimensional area.

[0132] Alternatively, these masks could be fitted with a thinner or smaller nose bridge strip, thinner or softer than existing ones, making them more skin-friendly and better fit the bridge of the nose. By choosing the right placement, even if a nose bridge strip is still needed, it can be made very thin, which reduces harm, lowers costs, and increases the mask's softness and comfort.

[0133] This type of implementation could target certain areas where masks are required to have nose bridge strips.

[0134] Alternatively, the mask may include a mask body and fastening straps. The ends of the fastening straps are fixed to the mask body. Two outermost fastening points are located around the nose bridge strip. The two upper left and right fastening straps connect to these points, preventing the nose bridge strip from deforming significantly due to the nose bridge's arch shape and reducing the mask's seal. Alternatively, the two upper left and right fastening straps connect to two fastening points near the nose bridge, with auxiliary fastening points at the mask edge. The nose bridge strip extends to these auxiliary fastening points. When used with very thin masks, the mask straps may cause the upper edge of the mask without the nose bridge strip to arch, leading to leakage. Therefore, a new structure extending the nose bridge strip to the auxiliary fastening points is used. Many embodiments may also incorporate a nose bridge strip made of U-shaped elastic material. The arc in the middle of the U-shaped nose bridge strip fits around the nose, while the elastic sides of the U-shape press against any gaps on the sides of the nose bridge. This overcomes the problem of the plastic nose bridge strip failing to fit properly when the mask shifts during speaking, causing leaks.

[0135] The two fixing points at the bottom of the mask should be moved upwards by 5-20 mm; or the two fixing points at the bottom of the mask should be moved upwards by 0.5 to 2.5 cm. For children's masks, the two fixing points at the bottom should be moved upwards by 0.5 to 3 cm. In reality, when multiple people wear masks, there will be gaps on the sides. Moving the fixing points upwards helps to cover these gaps and make the edges of the mask fit snugly against the face.

[0136] The two fixing points at the bottom of the mask are moved up 5-20 mm and welded; or the two fixing points at the bottom of the mask are moved up 0.5 to 2.5 cm and welded. For children's masks, the two fixing points at the bottom are moved up 0.5 to 3 cm and welded to the mask next to the welding pattern on the side edge of the mask or to the area of ​​the welding pattern on the side edge of the mask.

[0137] When speaking, the chin is more likely to cause the mask to shift downwards, making it more prone to displacement, especially with 3D masks like N95 and KF94. Once the nose bridge strip shifts, it needs to be reshaped in its new position, inevitably causing air leakage and failing to achieve the intended technical effect. Leaks significantly impact aerosol protection. Therefore, regardless of whether a nose bridge strip is included, the key to these masks is preventing slippage during wear to achieve the desired technical effect. This is based on the significant discovery in this invention that nose bridge strips can actually cause leakage after mask displacement. It's crucial to incorporate materials with high friction resistance in areas that come into contact with the face or nose bridge. This invention uses materials with high friction to prevent mask movement. These materials, such as rough cloth or paper, fine-textured sponge, or roughened surfaces of the original mask material for these areas (e.g., scratched or welded textures), can prevent the mask from shifting. This implementation differs from existing technologies that simply attach sponge strips to the inner edge of the mask. Firstly, the material requirements are different; secondly, their functions and uses are different. Existing sponge strips are used to fill gaps on both sides of the nose bridge, so they need to be very long and generally quite thick. However, small gaps are easily created at the ends of the sponge, causing discomfort in hot weather. More importantly, the sponge material itself has large pores, resulting in poor filtration of viruses and aerosols. Too much or too thick sponge is equivalent to a large gap. The key point of this invention is that the friction that truly prevents the top edge of the mask from sliding downwards is mainly in a small area directly in front of the nose bridge. Therefore, the preferred implementation is to roughen the surface of the area of ​​the mask that contacts the nose bridge or to provide additional materials with high surface friction. In summary, the dimensions are significantly different from existing designs. Existing technology typically uses sponge strips longer than the nose bridge strip, with a lateral length exceeding 8 cm. This application uses a high-friction material on the inner surface of the mask, facing the nose bridge area, with a lateral length generally less than 5 cm. If positioned directly in front of the nose bridge, even less than 2 cm is sufficient. Furthermore, existing sponge strips are approximately 3 mm thick, while the high-friction material in this application is less than 1 mm thick. The term "high-friction material" refers to material with higher friction compared to the inner surface of existing masks. Since the outermost non-woven fabric of the mask is rougher than the innermost, resulting in higher friction, the high-friction material could also be used directly as the outermost non-woven fabric of the mask.

[0138] Alternatively, the inner surface of the mask can have moisture-absorbing material along the bridge of the nose and the sides of the nose, which further helps prevent eyeglasses from fogging up. These features can also be incorporated into other types of masks, such as flat masks.

[0139] In addition, for 3D masks such as N95 and KF94, besides openings and seams, there can be ring-shaped structures fixed on both sides of the upper edge of the mask as auxiliary fixing points, and the extended mask straps pass through the auxiliary fixing points.

[0140] The structure employed in this invention creates two forces on both sides of the nose bridge at the upper edge of the mask: an outward pulling force from the nose bridge and an inward pushing force from the outer edge (at the auxiliary fixing point). This allows the mask fabric to better act between the two forces, filling the large indentations on both sides of the nose bridge. With a nose bridge strip, these two forces continuously promote the nose bridge strip and mask fabric to bend into an arc shape resembling the large indentations during wear, maintaining a close fit; while with a mask without a nose bridge strip, there is no need for the user to pinch the nose bridge strip.

[0141] Alternatively, the inner surface of the mask may have a pouch-like structure with the opening facing the mouth and nose area, and the opening may be in the open position. Simpler designs may also have a desiccant storage area on the pouch wall and / or a fine metal thread connecting it inside the pouch. The pouch-like structure may contain various functional substances or active ingredients, such as medicines or plant extracts, as needed.

[0142] Finally, let's reiterate the implementation of the method of this invention: In other words, different fixation points will still have different effects, and there is an optimal fixation point. This also relates to the core method of this invention, which is the issue of fixation points or fixation point areas mentioned throughout the invention, whether it was the earliest fixation point for adhesive bonding or the later fixation point for elastomers and fixing straps. For example, the two fixation points at the top of the mask need to be moved downwards. In actual testing, it was found that if the two fixation points at the top of the mask are too close to the top edge of the mask, above the original position of the nose bridge strip, a small gap will appear between the top edge of the mask and the face. However, if the fixation points are moved downwards, below the original position of the nose bridge strip, there will be no small gap. And the fixation point is located below the side auxiliary fixation point. This implementation is similar to... Figure 9 The two straps at the top of the mask are not in a straight line; instead, the middle fixing point is lower, and the auxiliary fixing points on both sides are higher. Furthermore, with this design, the straps are angled, and the auxiliary fixing points move along the direction of the straps, pushing the mask fabric towards the center of the face, including the nose and mouth area. This results in the mask fitting the face more snugly over time, minimizing gaps. This issue exists in both masks with and without a nose bridge strip.

[0143] According to the principles of the present invention, the structure of the present invention can be applied not only to existing masks, but also to new masks, masks made of new materials, and masks with new structures.

[0144] Experiments and tests Because the movement of the fixed point involves more flat masks, and the main function of flat masks is to prevent droplets, the requirement for tightness is not high, meaning that air leakage around the edges of the mask is acceptable. Therefore, the experiment mainly relied on the experimenter's own judgment, selecting 6 adults (3 men, 3 women) and 6 children (3 men, 3 women).

[0145] The adjustment of the fixing points is as follows: For side leakage, move the two fixing points at the bottom of the flat mask upwards by 5-20 mm; or move the two fixing points at the bottom of the mask upwards by 0.5 to 2.5 cm, and for children's masks, move the two fixing points at the bottom upwards by 0.5 to 3 cm; or for top edge leakage, for flat masks, move the two fixing points at the top of the mask downwards and towards the center by 0.5 to 3 cm, and for children's masks, move them by 0.5 to 2 cm; or for top edge leakage, for N95 shaped masks, move the two fixing points at the top of the mask vertically upwards until they are 1-4 cm away from the top edge of the mask, and for children's masks, move them by 1-3 cm; at the same time, use the mask straps to press down the edge of the mask.

[0146] Each person wore both a regular mask and various masks with their fixed points moved. Each time they wore the mask, they blew air into it and felt for air leakage around the edges. Individuals summarized the perceived leakage at each edge of the mask. After multiple trials, the results were compiled and shown in Table 1. Furthermore, fit tests were conducted on each embodiment of this application and a regular mask. Data from similar examples are listed below, showing that the fit is better. Detailed test reports for each embodiment can be viewed on the official website (Table 2). Table 1

[0147] Table 2

[0148] This invention mask has just been launched, but everyone who has used it has given positive feedback on its effectiveness. Users include representatives of drivers from the top ten taxi companies and medical staff from several top-tier hospitals in Guangdong Province. Records are available, such as those from Guangdong Provincial Hospital of Traditional Chinese Medicine, the Fifth Affiliated Hospital of Guangzhou Medical University, and the Cancer Hospital of Guangzhou Medical University. Multiple doctors from each hospital gave positive feedback: the idea is excellent, it provides protection like a regular mask, and it automatically tightens around the bridge of the nose, eliminating the need to manually pinch the bridge of the nose.

[0149] The following are some examples:

[0150] The above includes various large and small implementations. The technical features of the above implementations can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0151] The embodiments described above are merely examples of several implementations of the utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Furthermore, direct or indirect applications in other related technical fields are also included within the patent protection scope of this utility model.

Claims

1. A face mask with a V-structure, characterized in that, The mask straps at the top of the mask are V-shaped; or the mask straps at the top of the mask are bent and deformed V-shaped; or the mask straps at the top of the mask are incomplete V-shaped; or the mask straps at the top and bottom of the mask are X-shaped; the mask body does not have a nose bridge strip; The mask is designed to prevent leakage, so that at least one end of any of the mask straps is not fixed to the existing fixing point on the original mask. On the upper part of the mask, the two fixing points are moved to the area corresponding to the bridge of the nose, and auxiliary fixing points are provided on the edge area of ​​the mask where they are moved. The auxiliary fixing points are connected by sliding.

2. A face mask with a V-structure, characterized in that, The mask straps at the top of the mask are V-shaped; or the mask straps at the top of the mask are bent and deformed V-shaped; or the mask straps at the top of the mask are incomplete V-shaped; or the mask straps at the top and bottom of the mask are X-shaped. In other words, the design of the mask is to prevent leakage. At least one end of each mask strap is not fixed to the existing fixing point of the original mask. Instead, it is moved horizontally and / or vertically towards the middle of the mask or the bridge of the nose and then fixed to a new position as a fixing point. An auxiliary fixing point is set in the edge area of ​​the mask where it was moved. The auxiliary fixing point adopts a sliding connection. An auxiliary fixing point is set at the edge of the mask, and the nose bridge strip extends to the auxiliary fixing point.

3. A face mask with a V-structure, characterized in that, The mask straps at the top of the mask are V-shaped; or the mask straps at the top of the mask are bent and deformed V-shaped; or the mask straps at the top of the mask are incomplete V-shaped; or the mask straps at the top and bottom of the mask are X-shaped. Furthermore, for side leakage, the two fixing points at the bottom of a flat mask should be moved upwards by 5-20 mm; or for adult masks, the two fixing points at the bottom should be moved upwards by 0.5 to 2.5 cm, and for children's masks, the two fixing points at the bottom should be moved upwards by 0.5 to 3 cm; or for top edge leakage, for flat masks, the two fixing points at the top should be moved downwards and towards the center, with adult masks moving by 0.5 to 3 cm and children's masks moving by 0.5 to 2 cm; or for top edge leakage, for N95 shaped masks, the two fixing points at the top should be moved vertically upwards, with adult masks moving upwards to 1-4 cm from the top edge of the mask and children's masks moving by 1-3 cm; at the same time, the mask straps should be used to press down the edge of the mask; auxiliary fixing points should be set at the edge of the mask, and the nose bridge strip should be extended to the auxiliary fixing points.

4. The mask with a V-structure according to claim 1, 2, or 3, characterized in that, For three-dimensional masks, the following features are provided: when cutting the mask fabric, there are multiple protruding mask fabrics at the upper left and right corners or at the four corners compared to existing masks, or when cutting the mask at the top edge, there are multiple protruding mask fabrics compared to existing masks, and the two sliding fixing points at the top of the mask are moved upward. And / or add more mask fabric to the bridge of the nose area; And / or soften the fabric of the mask at the bridge of the nose, that is, reduce the number of welded patterns on the fabric; And / or horizontal welding lines are welded into the mask fabric between the corresponding area below the nose bridge and above the mouth. Two or more welding lines are used, or if there is only one welding line, it is thicker than the welding lines on existing masks; and / or the welding lines are adjacent to the auxiliary fixing points or fixing points on the edge and are continuously connected from the left edge to the right edge; the welding lines separate the nose bridge deformation area and the mouth three-dimensional area.

5. The mask with a V-structure according to claim 1, 2, or 3, characterized in that, For 3D masks, the angle at the bridge of the nose is increased, which means there are three welding and cutting lines. You only need to increase the angle between the upper and middle sections, or add a transition welding and cutting line between the upper and middle sections. And / or the original mask has a straight edge, which is made into a rounded protrusion, or two rounded protrusions are made on the left and right sides in the middle; and / or extend a section along the top edge of the mask; Alternatively, when cutting existing masks, leave more protruding mask fabric at the top left and right corners or at all four corners compared to existing masks.

6. The mask with a V-structure according to claim 1, 2, or 3, characterized in that, The auxiliary fixing points are: located at the average width of the wearer's face, with the mask straps leaving the mask and heading towards the back of the ear or head from these points; or located within a range of ±5 mm on the left and right sides corresponding to the width of the face; or having a structure that increases the force of the mask straps pushing against the mask fabric; or having a structure that increases the friction between the mask straps and the auxiliary fixing points; or having holes or seams on the left and right sides of the upper edge of the mask, with the holes or seams corresponding to the width of the wearer's face on the mask body; or having holes or seams on the upper edge of the mask body. The mask can be made by opening slits on both sides of the upper edge, with the slits extending from the side edges towards the center line of the mask, and the slits should not completely penetrate the mask body; or by using rings instead of holes or slits, with equivalent ring structures on both sides of the upper edge of the mask, through which the mask straps pass; or by opening grooves on both sides of the upper edge of the mask body to adjust the length; or by providing a surface material on the outer surface of the mask around the auxiliary fixing point holes or slits to promote unidirectional movement of the mask straps; or by pressing a through, semi-sliding, semi-fixed slit directly on both sides of the upper edge during production, i.e., the slit is very small, only allowing the fixing straps to pass through. The mask straps are passed through holes, seams, or loops.

7. The mask with a V-structure according to claim 1, 2, or 3, characterized in that, One end of a fastening strap is fixed to the middle of the side of the mask body, and the other end is fixed to the original ear loops of the mask; or if the original mask body is tied to the head with upper and lower fastening straps, an additional fastening strap is added in the middle of the original upper and lower fastening straps of the mask body. Alternatively, the mask straps can be flat, serving as the middle strap. This middle strap and the strap at the bottom of the mask can be made wider and connected together, forming a single piece of elastic fabric. Or, the middle strap and the strap at the bottom of the mask can be replaced with a single piece of elastic fabric formed by the middle strap and the top strap. Alternatively, the original two fixing points of the mask straps at the bottom of the mask can be moved upwards by 5-25 mm; or the two fixing points at the bottom of the mask can be set on the mask body inside the bottom edge of the mask, and a surface material that moves unidirectionally relative to the mask straps can be provided at the bottom edge of the mask. Alternatively, the mask can be fitted with two upper and lower straps on each side, and when wearing the mask, both upper and lower straps should be placed over the same ear.

8. The mask with a V-structure according to any one of claims 1, 2, or 3, characterized in that, The fixing straps are attached to the edges of the mask using a buckle, adhesive, or clamping structure. After putting on the mask and adjusting it, the fixing straps are then secured to the edges of the mask. Alternatively, auxiliary fixing points can be: using a sliding connection, directly pressing through the seam or hole of the mask at the edge, with the fixing strap passing through the seam or hole; Alternatively, two or four auxiliary fixing points can be set on the mask, and the fixing straps can be connected to the mask through the fixing points; or side branches can be attached to the fixing straps to connect to the auxiliary fixing points on the mask. Alternatively, auxiliary fixing points may be provided on the left and right sides of the upper edge of the mask, corresponding to the width of a person's face, or within the width of the face; Alternatively, the connection between the mask strap and the edge of the mask can be a sliding connection, that is, the fixing hole or ring structure can be made into an elongated ellipse or groove shape, or the fixing hole or ring structure can be made into an elongated ellipse or groove shape, and the fixing structure can be fixed and locked on the fixing strap, fixing hole or ring structure.

9. The mask with a V-structure according to any one of claims 1, 2, or 3, characterized in that, To shape the mask to flatten the nose bridge, for flat masks, fold both sides along the center line, folding the inner surface inside the outer surface, with the pointed corner of the fold pointing in the same direction as the nose tip. For masks that are already folded, leave an angle and curvature at the nose bridge bend when folding the mask to create a gap between the two folded sides. Alternatively, fold the mask together and then fold both sides along the center line. Or, for flat masks, fold both sides along the center line, then fold both sides again, creating a W-shape when viewed from above or below, with the pointed corner pointing in the same direction as the nose tip. Alternatively, pre-shape the upper edge of the mask into a three-peak shape, so that when the mask is worn, the three peaks cover the left cheekbone, nose bridge, and right cheekbone respectively. This includes shaping the mask in at least one of the production, processing, packaging, transportation, and storage stages, or using an auxiliary frame with three peaks to fix the upper edge of the mask for shaping. Alternatively, use a memory material to pre-shape the mask to flatten the nose bridge. Alternatively, the mask fabric at the top edge can be treated to have many tiny creases or wrinkles.

10. The face mask with a V-structure according to any one of claims 1, 2, or 3, characterized in that, Flat masks have horizontally arranged plate-like or strip-like objects in the middle area of ​​the mask. The length of the plate-like or strip-like objects can reach the end of the left and right side folds of the mask, or further, the two sides of the mask are welded together by welding several layers of fabric. At the end of the plate-like or strip-like object on the inside of the weld, there is a recessed notch that is not welded. Alternatively, a plate or strip may be provided horizontally in the middle area of ​​the mask. The length of the plate or strip may be able to reach the end of the left and right side folds of the mask or support the face. The plate or strip may be made with different materials or different processing techniques on the front and back, and the plate or strip may be bent in one direction. Alternatively, a plate or strip can be horizontally fixed between the bridge of the nose and the top of the mouth or in the middle of the mask, or a horizontal welding pattern can be welded onto the mask fabric between the bridge of the nose and the top of the mouth or in the middle of the mask. When the mask is worn, the plate, strip, or welding pattern supports the face.

11. The face mask with a V-structure according to any one of claims 1, 2, or 3, characterized in that, The area of ​​the mask that comes into contact with the bridge of the nose is treated with a rough surface, or has additional materials with high surface friction. And / or move the two fixing points at the bottom of the flat mask up by 0.5 to 2.5 cm or add a fixing point in the middle of the side of the mask.

12. The mask with a V-structure according to any one of claims 1, 2, or 3, characterized in that, Without swapping the innermost and outermost fabric layers of a flat mask, keep the original folding and pleat direction unchanged, rotate the existing flat mask 180 degrees along the plane, with the lower part becoming the upper part and the upper part becoming the lower part; And / or flat masks have several horizontal folds and pleats, each of which will fold out a small pleat. The top fold should be on the outside of the mask, not on the inside, so that it does not block the gap between the mask fabric and the face. And / or when the mask is opened, the area of ​​the mask corresponding to the lips does not have folds or pleats, while the area outside the lips has folds or pleats; or when the mask is opened, the area of ​​the mask corresponding to the upper lip does not have folds or pleats, while the area outside the upper lip has folds or pleats.

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