TWM619885U - Transparent facial masks having replaceable filters - Google Patents

Abstract

The present invention discloses a transparent mask with replaceable filters, which includes: a transparent mask Body, two elastic ear hooks, one filter and one fixed cover. Since different types of filters can be used, the present invention can achieve the purpose of satisfying multiple requirements such as sterilization and resistance to fine suspended particles with a pair of masks. In addition, the transparent mask body, filter and fixed cover can be used repeatedly after cleaning or disinfection, which meets environmental protection requirements. Furthermore, because of the design of the transparent mask body, the face recognition technology can still be applied even if the new type of mask is worn.

Description

Transparent mask with replaceable filter

The present invention relates to a mask, in particular to a transparent mask with replaceable filters.

In recent years, Taiwan’s air quality problems have become more and more serious. Due to the increase in suspended particles emitted by factories and power plants, the part with a particle size of less than or equal to 2.5μm (also known as fine suspended particles, known as PM2.5) is larger than viruses and smaller than bacteria, and can float in the air for a long time. It escapes the capture of human nose hairs, penetrates into the alveoli and enters the blood vessels, and circulates throughout the body with the blood, causing diseases. In 2018, the World Health Organization cited the International Agency for Research on Cancer (IARC) definition, and classified outdoor air pollution as a human carcinogen, and proposed that long-term exposure to an environment with a PM2.5 concentration of up to 35μg/m3 may increase the mortality rate of lung cancer to 15%. In Taiwan, the increase in cases of lung adenocarcinoma is also obvious to all. Therefore, effective prevention of fine suspended particles from entering the human body in life has gradually become an important issue for health, and various protective masks have also been put on the market.

On the other hand, the new crown pneumonia that began in 2020 has increased the demand for protection against viruses contained in air droplets, and for a while, the supply of medical masks is in short supply. Generally speaking, although medical masks contain N95 masks that can block 95% of non-oily particles above 0.3 microns in diameter (which can prevent the spread of droplets caused by patient fluids or blood splashes), this mask can also be used for PM2. 5 The protection against dust mites, but compared with the high medical grades required to filter bacteria such as Staphylococcus aureus, such as CNS 14775, this mask does not meet the requirements. If a mask can meet medical needs and prevent fine aerosols at the same time, its price will be high, and it will have side effects such as breathing difficulties and facial pressure and discomfort in use.

Furthermore, some common mask requirements, such as reusable, easy to clean and disinfect, transparent and visible user faces (for the use of smart phone face ID), etc., are not found in the aforementioned mask market.

Therefore, in order to solve the above-mentioned problems, an integrated multifunctional mask is provided, and thus the transparent mask with replaceable filters of the present invention is born.

This paragraph of text extracts and compiles certain features of the new model. Other features will be revealed in subsequent paragraphs. Its purpose is to cover the spirit and scope of the additional patent application, various modifications and similar arrangements.

In order to solve the above problems, the present invention discloses a transparent mask with a replaceable filter, which includes: a transparent mask body, which can cover the mouth and nose of the user, and has an ear hook on the left and right sides, and each ear The hanging part forms a plurality of fixing holes, and a gas inlet and outlet part is formed below the center. The gas inlet and outlet part has a plurality of internal vent holes and does not cover the mouth of the user when viewed from the front of the transparent mask body; two elastic ear hooks , Each elastic ear hook has a connecting portion and an elastic cord connecting the two ends with the connecting portion, and the connecting portion has a protruding connecting buckle for connecting and fixing with one of the fixing holes; a filter, which is plural The sub-layers are formed by laminating, filtering harmful substances in and out of the air or sterilizing the air in and out of the air; and a fixed cover with a plurality of external vent holes, which is detachably combined with the air inlet and outlet. When the fixed cover is combined with the gas inlet and outlet part, the filter is clamped at the same time.

According to the present invention, an anti-fog layer can be further formed on the inside of the transparent mask body to prevent moisture exhaled from the mouth and nose of the user from forming water mist visible to the naked eye on the inside of the transparent mask body.

According to the present invention, the gas inlet and outlet portion may further form a fixing frame, and a fixing groove is further formed inside the fixing cover, and the fixing frame is embedded in the fixing groove so that the fixing cover is combined with the gas inlet and outlet portion.

Preferably, the transparent mask body and the fixed cover are made of polypropylene (PP), polycarbonate (PC) or polyethylene terephthalate-1,4-cyclohexanedimethanol Ester (Polyethylene terephthalate glycol, PETG).

Preferably, the material of the elastic ear hook is Thermoplastic Rubber (TPR), Thermoplastic Elastomer (TPE) or Thermoplastic Polyurethane (TPU).

According to the present invention, the contact part of the transparent mask body and the user can further form an elastic strip-shaped frame, and the contact position and area can be adjusted according to the shape of the user's face, thereby reducing the amount of the transparent mask body applied to the user's face during wearing. Pressure, and increase the airtightness between the transparent mask body and the user's face.

Preferably, the material of the elastic strip frame is TPR, TPE or TPU.

According to the present invention, the filter sheet may further include: a first non-woven fabric sub-layer; a functional sub-layer coupled to the first non-woven fabric sub-layer; and a second non-woven fabric sub-layer coupled to the functional sub-layer.

In one embodiment, the functional sub-layer is a melt blown cloth, and its fibers are filled with static electricity; in another embodiment, the functional sub-layer is a high-efficiency particulate air (HEPA) or activated carbon filter .

Since different types of filters can be used, the present invention can achieve the purpose of satisfying multiple requirements such as sterilization and resistance to fine suspended particles with a pair of masks. In addition, the transparent mask body, filter and fixed cover can be used repeatedly after cleaning or disinfection, which meets environmental protection requirements. Furthermore, because of the design of the transparent mask body, the face recognition technology can still be applied even if the new type of mask is worn.

1: Transparent mask with replaceable filter

10: Transparent mask body

11: Smooth part

12: Earhook

121: fixed hole

13: Gas inlet and outlet

131: fixed frame

14: Elastic strip frame

20: Elastic ear hook

21: Connection part

211: Protruding link buckle

22: Elastic rope

30: filter

31: The first non-woven fabric sublayer

32: functional sublayer

33: The second non-woven sublayer

40: fixed cover

41: External vent

42: fixed groove

Figure 1 is a schematic diagram of the appearance of a transparent mask with a replaceable filter according to an embodiment of the present invention. Figure 2 is an exploded view of the transparent mask with a replaceable filter. Figure 3 shows a gas inlet and outlet and a filter. When combined with a fixed cover, FIG. 4 is a cross-sectional view of the filter, and FIG. 5 is a use state of a transparent mask with a replaceable filter.

The present invention will be described in more detail by referring to the following embodiments.

Please refer to Figures 1 and 2. Figure 1 is a schematic diagram of the appearance of a transparent mask 1 with a replaceable filter according to an embodiment of the present invention, and Figure 2 is an exploded view of the transparent mask 1 with a replaceable filter. The transparent mask 1 with replaceable filters mainly includes a transparent mask body 10, two elastic ear hooks 20, a filter 30 and a fixed cover 40. The types and functions of these technical components will be described in detail below in conjunction with the drawings.

The transparent mask body 10 is the main body of the transparent mask 1 with replaceable filters, which can cover the mouth and nose of the user, and block most of the pollutants or germs in the air from contacting the respiratory organs of the user. According to the present invention, the transparent mask body 10 is made of transparent polymer materials, such as but not limited to polypropylene (PP), polycarbonate (PC) or polyethylene terephthalate-1,4- Polyethylene terephthalate glycol (PETG). The advantages of PP are light weight and low price, PC has high transparency and strong hardness, while PETG has more elastic hardness, and the corresponding materials can be used according to the design requirements. The three materials also have anti-ultraviolet function. The outer shape of the transparent mask body 10 protrudes to one side, so that the nose and mouth of the user can be placed inside it. There is a smooth portion 11 below the transparent mask body 10. The left and right sides of the transparent mask body 10 are respectively provided with an ear hanging part 12. A number of fixing holes 121 are formed on each ear hook 12, the function of which will be described later. Below the center of the transparent mask body 10, on the smooth portion 11, a gas inlet and outlet portion 13 is formed. The gas inlet and outlet portion 13 protrudes from the adjacent parts of the other transparent mask body 10, but is integrally formed. The gas inlet and outlet portion 13 has a plurality of internal vents, and the internal vents can allow air to circulate on the inner and outer sides of the transparent mask body 10 to maintain the user's breathing.

Please see Figure 5, which shows the use state of the transparent mask 1 with replaceable filters. Viewed from the front of the transparent mask body 10, the gas inlet and outlet 13 does not cover the mouth of the user. Although the transparent mask body 10 is made of a transparent material, the gas inlet and outlet portion 13 is not a smooth structure, and the refractive index is different due to different viewing angles, which causes the user's facial curve to be deformed. In addition, a filter 30 is also placed outside the transparent mask body 10. In order to allow most of the user’s facial features to be effectively recognized, face recognition can also be performed when wearing a transparent mask 1 with a replaceable filter. For example, in the application of face ID, the gas inlet and outlet 13 are in the best position. It's better than the lips. The design of the transparent mask body 10 can be as shown in FIG. 1, with some artistic lines on the outer surface for decoration. Similarly, the outer side of the transparent mask body 10 can also be kept smooth, allowing the user to paint some areas, such as the cheeks, so that the transparent mask 1 with replaceable filters can be customized and personalized.

In addition, the contact portion between the transparent mask body 10 and the user forms an elastic strip-shaped frame 14. The elastic strip frame 14 can adjust the contact position and area according to the shape of the user's face, thereby reducing the pressure that the transparent mask body 10 exerts on the user's face when wearing the transparent mask 1 with a replaceable filter, and increasing the transparent mask body 10 The airtightness between the user's face and the user's face. Due to the long wearing time, if the material used for the elastic strip frame 14 is not suitable for human skin contact, some potential health problems, such as residual plasticizers, will often occur. Therefore, the elastic strip frame 14 preferably uses skin-friendly materials, such as but not limited to thermoplastic rubber (Thermoplastic Rubber, TPR), Thermoplastic Elastomer (TPE) or Thermoplastic Polyurethane (TPU), which can be in accordance with Use corresponding materials for actual needs. According to the present invention, the elastic strip frame 14 is not formed by itself and then installed on the transparent mask body 10, but can be formed by a secondary injection method at the edge of the transparent mask body 10 to form TPR, TPE or TPU.

When the user exhales, the water in the lungs is exhaled into the transparent mask body 10 and then condenses on the inner surface of the transparent mask body 10. In this way, it is difficult to recognize the user's mouth and nose from the outside of the transparent mask 1 with replaceable filters, and face recognition is difficult to perform. In order to solve this problem, according to the present model, An anti-fogging layer (not shown) can be formed on the inner side of the transparent mask body 10, which is also transparent to prevent moisture exhaled from the mouth and nose of the user from forming water mist visible to the naked eye on the inner side of the transparent mask body 10. In practice, a commercially available anti-fog film (such as a Japanese idea-auto rain-proof and anti-fog film) can be used to stick to the inner surface of the transparent mask body 10.

Two elastic ear hooks 20 can be connected to the transparent mask body 10, and are tools for hooking the user's ears to fix the transparent mask 1 with replaceable filters. Each elastic ear hook 20 has a connecting portion 21 and an elastic cord 22 connected to the connecting portion 21 at both ends. The connecting portion 21 has a protruding connecting buckle 211, and the protruding connecting buckle 211 can be used to connect and fix with one of the fixing holes 121 on any one of the ear hanging portions 12. The structure of the protruding connecting buckle 211 is similar to that of a common snap buckle. After using its elasticity to enter the fixing hole 121, the protruding head is fixed in it. To remove the protruding connecting buckle 211 from the fixing hole 121, the elastic ear hook 20 and the ear hook portion 12 can be pulled apart by force. The design of the plurality of fixing holes 121 allows the protruding connecting buckle 211 to be selectively connected and fixed, thereby adjusting the distance between the most edge portion of the elastic cord 22 and the ear hook portion 12. When the user’s face is small and the distance between the earhook part 12 and his ear is short, the protruding connecting buckle 211 is connected to the fixing hole 121 in the earhook part 12 that is closer to the elastic strip frame 14, and the elastic cord 22 The reach of the most marginal part (the auricle) is shorter; when the user’s face is wider and the distance between the ear hook 12 and his ear is longer, the protruding connecting buckle 211 is connected to the ear hook 12 The fixing hole 121 farthest from the elastic strip-shaped frame 14 is longer than the edge of the elastic cord 22 can be touched. In terms of materials, since the elastic ear hooks 20 and the elastic strip frame 14 will contact the skin, it is also necessary to use skin-friendly elastic materials, such as the aforementioned TPR, TPE or TPU.

The filter 30 is formed by a plurality of sub-layers attached together, which can filter harmful substances in and out of the air or sterilize the air in and out of it. The filter 30 is clamped outside the gas inlet and outlet 13 to control the quality of the air entering the gas inlet and outlet 13. Therefore, the functions that the transparent mask 1 with replaceable filters can perform are related to the selected filter 30. Please refer to FIG. 4, which is a cross-sectional view of the filter 30, showing the structure of the filter 30. According to the present invention, the filter 30 includes a first non-woven fabric sublayer 31, a functional sublayer 32, and a second Non-woven fabric sublayer 33. The functional sub-layer 32 is combined with the first non-woven fabric sub-layer 31, and different functional sub-layers 32 exhibit different functions of the filter 30. The second non-woven fabric sub-layer 33 is bonded to the functional sub-layer 32. In one embodiment, the functional sub-layer 32 is a melt-blown cloth, and its fibers are filled with static electricity. Such a filter 30 structure can absorb and eliminate bacteria and viruses in the air by using static electricity. In another embodiment, the functional sublayer 32 is a High-Efficiency Particulate Air (HEPA) or activated carbon filter. Such a filter 30 structure can absorb PM2.5 or odor particles from the incoming and outgoing air. The filter 30 is a consumable, but before its function completely disappears, the non-woven sub-layers on both sides can be cleaned (washed with water or alcohol) to extend the use time. Cloth masks with the same functions cannot be cleaned up and reused due to the large area of materials used and the one-time design, which is quite a waste of production resources. In the use of the replaceable filter 30, the new technology utilizes unit materials to the greatest extent, reduces the waste of the overall mask material, and is also an environmentally friendly design.

The fixed cover 40 has a plurality of external vent holes 41, and is detachably connected to the gas inlet and outlet portion 13. The fixing cover 40 is a device for fixing the filter 30. The specific method is to clamp the filter 30 at the same time when the fixed cover 40 is combined with the gas inlet and outlet 13. For the description of this point, please refer to FIG. 3 at the same time, which shows the state when the gas inlet and outlet portion 13, the filter 30 and the fixed cover 40 are combined. Structurally, a fixed frame 131 is formed outside the gas inlet and outlet portion 13. Viewed from the front, the fixed frame 131 is rectangular; viewed from the side, the shape of the fixed frame 131 is close to the curved surface of the gas inlet and outlet 13. In contrast, a fixing groove 42 is formed inside the fixing cover 40. The fixing groove 42 cannot be seen from the outside of the fixing cover 40, so the inner circle of the lower part of FIG. 3 shows the inside of the fixing cover 40, showing the position and shape of the fixing groove 42. The shape of the fixing groove 42 is the same as the outer shape of the fixing frame 131. The fixing frame 131 of the gas inlet and outlet part 13 is embedded in the fixing groove 42 of the fixing cover 40 along the direction of the transparent arrow, so that the cover 40 and the gas inlet and outlet part 13 are fixed. The filter sheet 30 is sandwiched and combined. In terms of material, the material of the fixed cover 40 can also be PP, PC or PETG. Based on the materials used for the transparent mask body 10 and the fixed cover 40, the transparent mask 1 with a replaceable filter can be sterilized by steam or alcohol to ensure that even if it is used repeatedly, there will be no hidden worry of viruses and bacteria sticking to it.

Please refer to Figure 5 (the figure shows the use state of the transparent mask 1 with replaceable filters). When the user correctly puts on the transparent mask 1 with replaceable filters, because the gas inlet and outlet 13 are in the user’s mouth and Below the nose, the fixed cover 40 is also located here. The user's exhaled air with moisture will be discharged through the fixed cover 40, and fresh and dry air (as indicated by the double arrow) will be inhaled from there. Since there is little in and out air that can flow to other parts of the transparent mask body 10, it is not easy for water droplets to condense on the inner side of the transparent mask body 10. This is another advantage of the new design.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the relevant technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, The scope of protection of this new model shall be subject to the scope of the attached patent application.

1: Transparent mask with replaceable filter

10: Transparent mask body

11: Smooth part

12: Earhook

121: fixed hole

13: Gas inlet and outlet

14: Elastic strip frame

20: Elastic ear hook

21: Connection part

211: Protruding link buckle

22: Elastic rope

30: filter

40: fixed cover

41: External vent

Claims (10)

A transparent mask with replaceable filters, comprising: a transparent mask body, which can cover the mouth and nose of the user; the left and right sides of the mask are respectively provided with an earhook part, and each earhook part forms a plurality of fixing holes. A gas inlet and outlet part is formed below the center. The gas inlet and outlet part has a plurality of internal vents and does not cover the mouth of the user when viewed from the front of the transparent mask body; two elastic ear hooks, each of which has a connection The elastic cord connected with the connecting part and the two ends, the connecting part is provided with a protruding connecting buckle for connecting and fixing with one of the fixing holes; a filter sheet is formed by bonding a plurality of sub-layers to filter in and out of it Harmful substances in the air or sterilizing the air entering and exiting it; and a fixed cover with a plurality of external vents, which can be detachably combined with the gas inlet and outlet part, wherein when the fixed cover is combined with the gas inlet and outlet part , And clamp the filter at the same time. As described in item 1 of the scope of patent application, a transparent mask with a replaceable filter, wherein an anti-fog layer is further formed on the inner side of the transparent mask body to prevent moisture exhaled from the user’s mouth and nose from being exposed to the transparent mask. The inside of the body forms a mist visible to the naked eye. As described in item 1 of the scope of patent application, the transparent mask with a replaceable filter, wherein the gas inlet and outlet portion further forms a fixed frame, the fixed cover further forms a fixed groove inside, and the fixed frame is embedded in the fixed groove Therefore, the fixed cover is combined with the gas inlet and outlet. As described in item 1 of the scope of patent application, the transparent mask with a replaceable filter, wherein the transparent mask body and the fixed cover are made of polypropylene (PP), polycarbonate (PC) or polycarbonate Polyethylene terephthalate glycol (PETG). As described in item 1 of the scope of patent application, the transparent mask with replaceable filter, wherein the material of the elastic ear hook is Thermoplastic Rubber (TPR), thermoplastic elastomer (Thermoplastic Elastomer, TPE) or Thermoplastic Polyurethane (TPU). As described in item 1 of the scope of patent application, a transparent mask with a replaceable filter, wherein the contact part between the transparent mask body and the user further forms an elastic strip-shaped frame, and the contact position and area can be adjusted according to the shape of the user’s face. Therefore, the pressure that the transparent mask body exerts on the user's face during wearing is reduced, and the airtightness between the transparent mask body and the user's face is increased. As described in item 6 of the scope of patent application, the transparent mask with replaceable filter, wherein the material of the elastic strip frame is TPR, TPE or TPU. The transparent mask with a replaceable filter as described in item 1 of the scope of patent application, wherein the filter further comprises: a first non-woven fabric sub-layer; a functional sub-layer combined with the first non-woven fabric sub-layer; and a The second non-woven fabric sub-layer is combined with the functional sub-layer. As described in item 8 of the scope of patent application, the transparent mask with a replaceable filter, wherein the functional sub-layer is a melt-blown cloth, and the fibers are filled with static electricity. As described in item 8 of the scope of patent application, the transparent mask with a replaceable filter, wherein the functional sub-layer is a High-Efficiency Particulate Air (HEPA) or an activated carbon filter.

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