CN212592689U - Goggles for protecting against new coronavirus - Google Patents
Goggles for protecting against new coronavirus Download PDFInfo
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- CN212592689U CN212592689U CN202020423273.8U CN202020423273U CN212592689U CN 212592689 U CN212592689 U CN 212592689U CN 202020423273 U CN202020423273 U CN 202020423273U CN 212592689 U CN212592689 U CN 212592689U
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- rubber ring
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- new coronavirus
- woven fabric
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Abstract
The utility model belongs to the technical field of the virus protection, specifically be a goggles of protection new corona virus. The utility model comprises a picture frame, a resin lens, a rubber ring, a protective cloth and an elastic band; the two resin lenses are embedded into the mirror frame through the mirror frame clamping grooves; the inner side of the rubber ring can be closely attached to the eyes of the human face, protective cloth is arranged between the rubber ring and the picture frame, and the rubber ring and the picture frame are connected, supported and fixed by a plurality of supporting strips; the elastic belts are tied on two sides of the rubber ring and used for wearing the goggles on the head; the protective cloth is made of a composite high-efficiency material for protecting against new coronavirus, and is composed of three layers, wherein the inner layer and the outer layer are polypropylene spun-bonded non-woven fabrics, and the middle layer is superfine denier electret melt-blown fiber non-woven fabric; the surface of the non-woven fabric is provided with a resident electrostatic field, when new coronavirus passes through gaps of the microfiltration filter material, the static field and weak current generated by the microfiltration filter material are captured, and the non-woven fabric has good air permeability and meets the NIOSH (national institute of occupational safety and health) N99 standard.
Description
Technical Field
The utility model belongs to the technical field of the virus protection, concretely relates to high-efficient goggles of protecting new coronavirus.
Background
Coronaviruses are a large group of viruses widely existing in nature, and the diameter of virus particles is 60-120nm, the average diameter is 100nm, and the virus particles are spherical or ellipsoidal. 2019A novel coronavirus (2019-nCoV, causing COVID-19) is currently known as the 7 th coronavirus that can infect humans. After patients are infected with coronavirus, the common signs of the patients comprise respiratory symptoms, fever, cough, shortness of breath, dyspnea and the like. In more severe cases, the infection can lead to pneumonia, severe acute respiratory syndrome, multiple organ failure, and even death. Aiming at the extremely strong infectivity of the new coronavirus, the epidemic prevention experts emphasize that the transmission routes of the new coronavirus which can be determined at present are mainly direct transmission, aerosol transmission and contact transmission. In the epidemic prevention process, thousands of medical staff at the front of the life still are infected by the new coronavirus when wearing the N95/KN95 mask correctly, and meanwhile, the Zhejiang scientific research team discovers that the tear and conjunctival secretion have the new coronavirus and risks of the new coronavirus from the eyes for the first time. As medical staff who are closely contacted with new coronavirus patients and suspected cases, due to the working property and environment of the medical staff, when the medical staff are in close contact with infectious disease patients spread by droplets in the process of diagnosis and treatment and nursing operation, and when the respiratory infectious disease patients are subjected to close-distance operation such as tracheotomy, tracheal intubation and the like, and the blood, body fluid and secretion of the patients possibly splash and the like, the goggles play an important role in protection. Therefore, it is an indispensable measure for medical staff to wear the safety glasses.
However, goggles that specifically protect against new coronavirus are currently lacking in the market. Most of the existing goggles in the market are made of plastics, organic glass and the like, the quality of the goggles is good, a large amount of fog can be accumulated on the lenses even the fog is condensed into water drops after the goggles are worn for a long time, and the normal work of medical staff is seriously influenced. Therefore, in recent years, medical goggles manufacturing enterprises continuously research various antifogging agents to improve the antifogging capability of lenses, but the effect is not ideal, so that the manufacturing cost of the goggles is increased, and the potential risk of skin allergy caused by long-time wearing exists.
In order to effectively prevent new coronavirus from entering human body through conjunctiva of eyes, reduce the health risk of infection of new coronavirus through eyes and protect the health of medical personnel fighting at the first line of epidemic prevention, a pair of goggles for efficiently protecting new coronavirus is needed.
Disclosure of Invention
Not enough to prior art, the utility model provides a high-efficient goggles of protecting new coronavirus that the gas permeability is good, low in manufacturing cost.
The utility model provides a high-efficiency protective goggles for new coronavirus, which comprises a goggle frame, a resin lens, a rubber ring, a protective cloth and an elastic band; the two resin lenses are embedded into the mirror frame through the mirror frame clamping grooves; the inner side of the rubber ring can be closely attached to the eyes of the human face, protective cloth is arranged between the rubber ring and the picture frame, and the rubber ring and the picture frame are connected, supported and fixed by a plurality of supporting strips; the elastic belts are tied on two sides of the rubber ring and used for wearing the goggles on the head; wherein:
the protective cloth is made of a composite high-efficiency material for protecting new coronavirus, and is composed of three layers of materials, wherein the three layers of materials are 35-45g/m from outside to inside in sequence2Polypropylene spun-bonded non-woven fabric, 30-50g/m2Superfine denier electret melt-blown fiber non-woven fabric, 20-30g/m2Polypropylene spun-bonded nonwoven fabric.
The utility model discloses in, superfine denier electret melt-blown fiber non-woven fabric, can prepare by following step and obtain:
(1) selecting micro-fine fibers which can be split into one twentieth to one eighty of the diameter of a precursor, and carrying out micro-technical treatment according to the production process and the melt-blowing process of the needled felt, wherein the specific flow comprises the following steps: carding, feeding, opening, mixing, fine opening, cotton feeding, cotton homogenizing, carding, combing, net stacking, 6-9 needling processes, heat setting, singeing, press polishing, surface coating or resinification finishing, inspecting, slitting and finishing the microfiltration filter element to obtain a superfine fiber filter material with the fiber diameter of one twentieth to one eighty times of the fiber diameter of a common filter material; the fineness of the prepared superfine fiber is 0.01-0.1 denier;
(2) then selecting tourmaline superfine particles with strong self-polarization effect as a modified additive of the electret melt-blown polypropylene superfine fiber non-manufactured cloth, and uniformly dispersing the tourmaline superfine particles into melt-blown propylene slices through surface modification to prepare electret polypropylene master batches with good spinnability. The content of tourmaline is 3-8% of the total mass;
(3) the composite electret polypropylene melt-blown superfine fiber non-woven fabric is spun by adopting a melt-blown process (polymer feeding, melt extrusion, fiber forming, fiber cooling, web forming and cloth reinforcement) and with a melt flow index of (1000-;
(4) adopting corona discharge to perform electret treatment on the polypropylene fiber to obtain the tourmaline-containing polypropylene melt-blown superfine fiber non-woven fabric. The method specifically comprises the following steps: under low-pressure air, 2000-4000V high-voltage electricity is applied to the needle electrode, so that a strong electric field is formed near the needle tip, and an electret effect is generated. In order to avoid arc discharge, a high-current low-voltage mode is adopted in the production process. Meanwhile, the tourmaline-containing electret polypropylene melt-blown superfine fiber non-woven fabric adopts directional polarization along the thickness direction, can generate a higher electric field and has better charge storage property, so that the adsorption effect is better than that of the traditional electret non-woven fabric.
Compared with other materials, the superfine denier electret melt-blown fiber non-woven fabric has the advantages that the surface charge density of the fiber web is obviously increased, the electret charge storage capacity is enhanced, and the filtering efficiency is improved by about 40%. Wherein, when the tourmaline content is 6%, the comprehensive effect of electret is best, the surface charge density can reach-10 μ c/m2, the diameter is less than 0.26 μm, and the filtering efficiency reaches 95.8% when the filtering resistance is about 7 Pa. Thus, the superfine denier electret melt-blown fiber non-woven fabric material is prepared.
The fineness of the superfine fiber prepared by the method is 0.01-0.1 denier. The diameter of the ultrafine fiber is very small, about one forty times of the hair, so that the ultrafine fiber is endowed with many excellent properties: good air permeability, obvious adsorption effect on virus particles (with the diameter of 60-120 nm), extremely strong cleaning effect and the like.
The utility model discloses in, polypropylene fibre glue and glue outer, polypropylene fibre glue and glue the equipartition on the non-woven fabrics inlayer and have ventilative aperture, the ventilative aperture that distributes on the unit area non-woven fabrics is 8-12 ten thousand/m2。
This kind of high-efficient protection new corona virus's goggles, its high-efficient compound protection new corona virus material core material adopts superfine denier electret melt-blown fiber non-woven cloth that microfiltration technology was handled, and the surface has resident electrostatic field, when new corona virus passes through the space of microfiltration filter material, will be caught and have good gas permeability by electrostatic field and the weak current that the microfiltration filter material produced. During the filtration efficiency detection process of the material by using 100nmPSL pellets to simulate new coronavirus, the average filtration efficiency of the material on 100nmPSL pellets is not less than 99 percent and can reach 99.2 percent at most (figure 2). As shown in FIG. 2, the number concentration of 100nmPSL beads before filtration: 4588 #/cm3(ii) a Number concentration of 100nmPSL beads after filtration: 38 #/cm3(ii) a Average filtration efficiency: 99.2 percent. Meets NIOSH (national institute of occupational safety and health) N99 standard, and can reach 100nm standard of evaluation transmittance of not more than 100 numbers per minute/cubic centimeter.
The beneficial effects of the utility model reside in that:
(1) by adopting the composite high-efficiency protective material for the new coronavirus, the novel coronavirus can be efficiently filtered, and meanwhile, the novel coronavirus has good air permeability, so that the accumulation of mist is avoided;
(2) the rubber ring is adopted to be attached to the face of a user, so that gaps are avoided, the sealing performance is improved, and the resin goggles lens can be disassembled for disinfection and can be used repeatedly;
(3) the goggles for efficiently protecting the new coronavirus have low manufacturing cost and low price.
Drawings
FIG. 1 is a schematic diagram of the structure of goggles for high-efficiency protection against new coronavirus.
FIG. 2 shows the filtration efficiency of the composite high-efficiency protective new coronavirus material adopted by the invention on 100nmPSL pellets (simulated viruses).
Reference numbers in the figures: 1 is the elasticity, 2 is the rubber circle, 3 is compound high-efficient protection new coronavirus material, 4 is the picture frame draw-in groove, 5 is the resin lens, 6 is the picture frame.
Detailed Description
The present invention will be further described with reference to the accompanying drawings by way of examples.
The structure of the high-efficiency protective new corona virus goggles of the utility model is shown in figure 1, including: elasticity 1, rubber circle 2, compound high-efficient protection new corona virus material 3, picture frame draw-in groove 4, resin lens 5, picture frame 6. Wherein, the tightness 1 can be adjusted by the user according to the head size; the rubber ring 2 is attached to the face of a user, so that gaps are avoided, and the sealing performance is improved; the frame clamping groove 4 is used for fixing a resin lens 5; the resin lens can be disassembled for disinfection and can be used repeatedly; the spectacle frame 6 is provided with a supporting strip structure and is connected and fixed with the rubber ring; the composite high-efficiency material for protecting new coronavirus as protective cloth is composed of three layers of materials, wherein the three layers of materials are 40g/m from outside to inside in sequence2Polypropylene spun-bonded non-woven fabric, 50g/m2Superfine denier electret melt-blown fiber non-woven fabric (1 or 2 layers) with the weight of 25g/m2Polypropylene spun-bonded nonwoven fabric. Wherein, the middle layer adopts superfine denier electret melt-blown fiber non-woven cloth processed by microfiltration technology, the surface is provided with a resident electrostatic field, when new corona virus passes through the gap of the microfiltration filter material, the electrostatic field and weak current generated by the microfiltration filter material are captured, and the air permeability is good. During the filtration efficiency detection process of the material by using 100nmPSL pellets to simulate new coronavirus, the average filtration efficiency of the material on 100nmPSL pellets is not less than 99 percent and can reach 99.2 percent at most (figure 2). As shown in FIG. 2, before filtration, 100nmPSLNumber concentration of beads: 4588 #/cm3(ii) a Number concentration of 100nmPSL beads after filtration: 38 #/cm3(ii) a Average filtration efficiency: 99.2 percent. Meets NIOSH (national institute of occupational safety and health) N99 standard, and can reach 100nm standard of evaluation transmittance of not more than 100 numbers per minute/cubic centimeter.
The utility model discloses in, polypropylene fibre glue and glue outer, polypropylene fibre glue and glue the equipartition on the non-woven fabrics inlayer and have ventilative aperture, the ventilative aperture that distributes on the unit area non-woven fabrics is for being about 10 ten thousand/m2。
The utility model discloses a protection new corona virus goggles can effectively prevent new corona virus pollution, ensures medical personnel's health.
Claims (2)
1. The goggles for protecting against new coronavirus are characterized by comprising a spectacle frame, resin lenses, rubber rings, protective cloth and elastic bands; the two resin lenses are embedded into the mirror frame through the mirror frame clamping grooves; the inner side of the rubber ring can be closely attached to the eyes of the human face, protective cloth is arranged between the rubber ring and the picture frame, and the rubber ring and the picture frame are connected, supported and fixed by a plurality of supporting strips; the elastic belts are tied on two sides of the rubber ring and used for wearing the goggles on the head; wherein:
the protective cloth is made of a composite material for protecting against new coronavirus, and is composed of three layers of materials, wherein the three layers of materials are 35-45g/m from outside to inside in sequence2Polypropylene spun-bonded non-woven fabric, 30-50g/m2Superfine denier electret melt-blown fiber non-woven fabric, 20-30g/m2Polypropylene spun-bonded nonwoven fabric.
2. The goggles for preventing new crown virus according to claim 1, wherein said polypropylene spun-bonded nonwoven fabric has air holes uniformly distributed therein, and the number of the air holes distributed in the nonwoven fabric per unit area is 8-12 ten thousand/m2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202020423273.8U CN212592689U (en) | 2020-03-29 | 2020-03-29 | Goggles for protecting against new coronavirus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020423273.8U CN212592689U (en) | 2020-03-29 | 2020-03-29 | Goggles for protecting against new coronavirus |
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| CN212592689U true CN212592689U (en) | 2021-02-26 |
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| CN202020423273.8U Active CN212592689U (en) | 2020-03-29 | 2020-03-29 | Goggles for protecting against new coronavirus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111358620A (en) * | 2020-03-29 | 2020-07-03 | 复旦大学 | Goggles for protecting against new coronavirus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111358620A (en) * | 2020-03-29 | 2020-07-03 | 复旦大学 | Goggles for protecting against new coronavirus |
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