Respirator to prevent cross infection

Abstract

The present invention discloses a cross-infection-proof breathing mask, including a mask body and a fixing belt. The mask body is divided into a filtering part and a supporting part. The fixing belt is connected to the mask body on the sleeve body. An air valve is provided on the mask body. When the user exhales, the air valve is closed, and when the user inhales, the air valve is opened. This patent is used for patients infected with viruses. When the air valve is closed during exhalation, the virus carried by the patient can be prevented from being directly transmitted to the outside. The virus must be filtered through an antibacterial and anti-virus layer before being discharged into the air, effectively preventing the occurrence of cross-infection. When the patient inhales, the air valve opens to ensure sufficient oxygen supply. Second, it is used for patients who need to use a ventilator. This patent can be directly connected to the oxygen supply pipeline of the ventilator, and the patient does not need to wear a breathing mask, which is extremely convenient to use. Third, it is used to directly connect to the atomization drug pipeline of the atomization drug supply equipment, and administer the drug through atomization to achieve the treatment and health care of lungs, throats, and any other diseases that require gas supply.

Description

Technical Field

[0001] The invention relates to a mask, in particular to a breathing mask for preventing cross infection. Background Art

[0002] The existing masks have the defect of single function, and for masks equipped with air valves, the following working mode is adopted: when exhaling, the pressure inside the mask body increases, the one-way gas valve opens, and the exhaust gas is discharged outside the mask. When the user inhales, the air valve is closed. For example, after searching, the State Intellectual Property Office published a patent document with a publication number of CN207744738U on August 21, 2018. The present invention provides a medical mask for preventing infectious diseases, including a mask body, an elastic adjustment block, a lace, a nose clip, a warning strip, a power supply, a switch and a buzzer, a one-way air valve, a filter element inlet and outlet, a filter element body, a sterile cotton filter layer, an activated carbon adsorption layer, a HEPA filter layer, an antibacterial layer, a drug bag and a hydrophobic nano coating. The medical mask for preventing infectious diseases of the present invention is provided with a filter element body and a drug bag inside, and the physical protection of toxic particles is organically combined with drug treatment or health care functions, effectively avoiding the inhalation of harmful viruses and bacteria in the air; and the filter element is replaceable, and a buzzer is provided to facilitate the patient to alarm when he is uncomfortable outside the ward.

[0003] When the patient exhales, the pressure inside the mask increases, and the one-way valve opens, which can easily spread the virus carried by the patient, causing cross infection, and the function is relatively simple. Summary of the invention

[0004] In order to overcome the above-mentioned disadvantages, the object of the present invention is to provide a breathing mask that prevents cross infection.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] The cross-infection-preventing breathing mask comprises a mask body and a fixing belt, wherein the fixing belt is connected to the mask body, and an air valve is arranged on the mask body. When a user exhales, the air valve is closed, and when the user inhales, the air valve is opened.

[0007] Furthermore, the air valve includes an annular valve body, a valve plate and a valve cover, the upper end periphery of the annular valve body is provided with an outer annular baffle, the periphery of the valve cover is provided with an inner annular baffle, the lower end of the annular valve body passes through the cover body and is inserted in the valve cover, and the cover body is clamped between the outer annular baffle and the inner annular baffle; a center plate is provided in the annular valve body, the annular space between the annular valve body and the center plate is an air flow channel, the center plate is connected to the inner wall surface of the annular valve body through a plurality of connecting strips, and the plurality of connecting strips are radially distributed around the center plate, a fixing rod is provided in the center part of the plate surface of the center plate, the fixing rod is perpendicular to the plate surface of the center plate, a fixing pipe is provided on the bottom surface of the valve cover, the end of the fixing rod is inserted in the fixing pipe, a mounting hole is provided in the middle part of the valve plate, the valve plate is located in the annular valve body and is inserted on the fixing rod through the mounting hole, and a vent is provided on the bottom surface of the valve cover.

[0008] Furthermore, the bottom surface of the valve cover is an inclined surface, the lower end of the annular valve body and the bottom surface together clamp and fix one side of the valve plate, the other side of the valve plate is movable, and the vent hole of the valve cover is close to the movable side of the valve plate.

[0009] Furthermore, a plurality of annular protrusions are provided on the surface of the valve plate, and the plurality of annular protrusions are centered on the mounting hole of the valve plate.

[0010] Furthermore, the outer annular baffle is provided with a pipeline joint, and the pipeline joint is used to be connected to the oxygen supply pipeline of the oxygen supply equipment, or to be connected to the atomized drug pipeline of the atomized drug supply equipment.

[0011] Furthermore, the gas filtering part of the cover body is sequentially composed of an outer layer, an anti-gas layer, a filter layer and an inner layer. The anti-gas layer adopts a composite nano antibacterial and anti-gas layer, and the filter layer adopts a PTFE nano-membrane.

[0012] Furthermore, the fixing strap is an ear-hanging strap or a strap fixed to the head; a shaped metal strip is provided on the surface of the mask body at a position corresponding to the bridge of the nose.

[0013] Furthermore, a plurality of discontinuous indentation lines are provided on the surface of the gas filtering portion of the cover body, and the discontinuous indentation lines heat-press and bond the various layers in the cover body together.

[0014] Furthermore, the gas filtering part of the cover body is formed by hot-pressing and bonding a multi-layer cloth blank sheet, the multi-layer cloth blank sheet is bilaterally symmetrical, a V-shaped notch is opened in the middle of the lower side of the multi-layer cloth blank sheet, the V-shaped notch divides the lower side of the multi-layer cloth blank sheet into a lower left side and a lower right side, the lower left side and the lower right side are overlapped together and hot-pressed to form the cover body.

[0015] Furthermore, the mask body needs to be recycled and reused for the sake of saving and environmental protection, and is divided into a filter part and a support part, characterized in that: the mask body support part is formed by plastic / plastic, fixing belt, metal strip, breathing valve, etc. The support part is left empty, and the clamping function is designed according to the shape of the filter. The filter is installed to form a complete cross-infection prevention breathing mask.

[0016] The beneficial effects of the present invention are:

[0017] The cross-infection-proof respirator of this patent has the following main uses: First, it is used for patients infected with viruses. When they exhale, the air valve is closed to prevent the virus carried by the patient from spreading directly to the outside. The virus must be discharged into the air after being filtered through the antibacterial and anti-virus layer, effectively preventing the occurrence of cross-infection; when the patient inhales, the air valve opens to ensure sufficient oxygen supply. Second, it is used for patients who need to use a ventilator. When in use, the air valve of the cross-infection-proof respirator of this patent is provided with a pipe joint, which can be directly connected to the oxygen supply pipe of the ventilator. The patient does not need to wear a breathing mask, which is extremely convenient to use; third, it is used to directly connect the pipe joint of this patent to the atomized drug pipe of the atomized drug supply equipment, and to deliver drugs through atomization to achieve the treatment and health care of lung, throat and any other diseases that require gas supply.

[0018] The cover body of the present invention is formed by hot pressing and bonding a multi-layer cloth blank sheet, or adopting the form of separating the supporting part and the filtering part. The above two methods for making the cover body have the characteristics of simple manufacturing process, simple operation and high manufacturing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described with the aid of the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other accompanying drawings according to the following drawings without creative work:

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 for Figure 1 An exploded view of the gas valve shown;

[0022] Figure 3 for Figure 1 The expanded diagram shown.

[0023] In the figure: 1. cover body; 2. fixing belt; 3. air valve; 4. shaped metal strip; 5. outer layer; 6. anti-virus layer; 7. filter layer; 8. inner layer; 9. non-continuous indentation line; 10. multi-layer cloth blank piece; 11. V-shaped notch; 12. lower left side; 13. lower right side; 14. annular valve body; 15. valve piece; 16. valve cover; 17. outer annular baffle; 18. inner annular baffle; 19. center plate; 20. connecting strip; 21. fixing rod; 22. bottom surface; 23. fixing pipe; 24. mounting hole; 25. vent hole; 26. annular protrusion; 27. pipe joint. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper surface", "lower surface", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "forward", "reverse", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] like Figure 1 As shown, the cross-infection-proof breathing mask comprises a mask body 1 and a fixing belt 2, wherein the fixing belt 2 is connected to the mask body 1. In the embodiment of the present invention, the fixing belt 2 is an ear-hanging belt or a binding belt. A shaped metal strip 4 is provided on the surface of the mask body 1 at a position corresponding to the bridge of the nose. An air valve 3 is provided on the mask body 1. When the user exhales, the air valve 3 is closed, and when the user inhales, the air valve 3 is opened.

[0027] like Figure 2As shown, the gas valve 3 includes a circular ring valve body 14, a valve plate 15 and a valve cover 16. The outer periphery of the upper end of the circular ring valve body 14 is provided with an outer ring baffle 17, and the outer periphery of the valve cover 16 is provided with an inner ring baffle 18. The lower end of the circular ring valve body 14 passes through the cover body 1 and is inserted into the valve cover 16. The cover body 1 is clamped between the outer ring baffle 17 and the inner ring baffle 18. The outer ring baffle 17 is located on the outer surface of the cover body 1, and the inner ring baffle 18 is located on the inner surface of the cover body 1; a center plate 19 is provided in the circular ring valve body 14, and the annular space between the circular ring valve body 14 and the center plate 19 is an airflow channel. The core plate 19 is connected to the inner wall surface of the annular valve body 14 through a plurality of connecting strips 20, and the plurality of connecting strips 20 are radially distributed around the center plate 19. A fixing rod 21 is provided at the center of the plate surface of the center plate 19, and the fixing rod 21 is perpendicular to the plate surface of the center plate 19. A fixing tube 23 is provided on the bottom surface 22 of the valve cover 16, and the end of the fixing rod 21 is inserted into the fixing tube 23. A mounting hole 24 is provided in the middle of the valve plate 15. The valve plate 15 is located at the lower end of the annular valve body 14 and is inserted on the fixing rod 21 through the mounting hole 24. A vent 25 is provided on the bottom surface of the valve cover 16.

[0028] The bottom surface 22 of the valve cover 16 is an inclined surface, and the lower end of the annular valve body 14 and the bottom surface 22 together clamp and fix one side of the valve plate 15, and the other side of the valve plate 15 is movable. The vent 25 of the valve cover 16 is close to the movable side of the valve plate 15. When exhaling, the valve plate 15 is tightly attached to the lower end of the annular valve body 14 to close the airflow channel. When inhaling, the movable side of the valve plate 15 is separated from the lower end of the annular valve body 14 to open the airflow channel.

[0029] The valve plate 15 is made of a soft plastic sheet. The surface of the valve plate 15 is provided with a plurality of annular protrusions 26, and the plurality of annular protrusions 26 are centered on the mounting hole of the valve plate. The annular protrusions 26 can play the role of reinforcing ribs, and the valve plate 15 is not easily deformed, so as to improve the sealing performance of the air valve.

[0030] The outer annular baffle 17 is provided with a pipeline connector 27, and the pipeline connector 27 is used to connect with the oxygen supply pipeline of the oxygen supply device, or to connect with the atomized drug pipeline of the atomized drug supply device. The outer annular baffle 17, the annular valve body 14, the pipeline connector 27, the connecting strip 20, the center plate 19 and the fixing rod 21 are integrally formed by injection molding. Similarly, the valve cover 16, the inner annular baffle 18 and the fixing pipe 23 are also integrally formed by injection molding.

[0031] The cross-infection-proof respirator of this patent has the following main uses: First, it is used for patients infected with viruses. When they exhale, the air valve closes to prevent the virus carried by the patient from spreading outward, effectively preventing the occurrence of cross-infection; when the patient inhales, the air valve opens to ensure sufficient oxygen supply. Second, it is used for patients who need to use a ventilator. When in use, the cross-infection-proof respirator of this patent is equipped with a pipe joint on the air valve, which can be directly connected to the oxygen supply pipe of the ventilator. The patient does not need to wear a breathing mask, which is extremely convenient to use; third, it is used for patients with lung diseases. The pipe joint of this patent is directly connected to the atomized drug pipe of the atomized drug supply equipment, and the drug is administered through atomization to achieve lung treatment.

[0032] The cover body 1 is composed of an outer layer 5, an anti-virus layer 6, a filter layer 7 and an inner layer 8 in sequence. The outer layer 5 is made of waterproof non-woven fabric, the anti-virus layer 6 is made of a composite nano antibacterial and anti-virus layer, and the filter layer 7 is made of a PTFE nano-membrane with a filtering effect of >99%. The inner layer 8 is made of 3S hydrophilic non-woven fabric, which can not only absorb the moisture exhaled by the user, but also has a comfortable contact with the skin and has an anti-allergic effect. The cover body can be made of plastic / plastic, and then the above-mentioned multi-layer filter material is added to form a complete whole, so that the cover body can be recycled and reused.

[0033] The surface of the cover body 1 is provided with a plurality of discontinuous indentation lines 9, which heat-press and bond the various layers in the cover body together, so that the various layers can be connected and fixed into a whole.

[0034] The cover body 1 of the present invention is formed by hot pressing and bonding a multi-layer cloth blank sheet, and the "multi-layer" in a multi-layer cloth blank sheet includes the above-mentioned outer layer 5, anti-virus layer 6, filter layer 7 and inner layer 8. The multi-layer cloth blank sheet 10 is bilaterally symmetrical, and a V-shaped notch 11 is opened in the middle of the lower side of the multi-layer cloth blank sheet 10. The V-shaped notch divides the lower side of the multi-layer cloth blank sheet 10 into a lower left side 12 and a lower right side 13. The lower left side 12 and the lower right side 13 are superimposed together and hot pressed to form the cover body 1. The cover body 1 manufactured in the above manner is simple to operate and has high manufacturing efficiency.

[0035] In addition, those skilled in the art may combine and combine the different embodiments or examples and the features of the different embodiments or examples described in this specification without contradiction. Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A cross-infection-preventing breathing mask, comprising a mask body and a fixing belt, wherein the fixing belt is connected to the mask body, and characterized in that: The mask body is provided with an air valve, which is closed when the user exhales, and opened when the user inhales; The gas valve comprises a circular ring valve body, a valve plate and a valve cover, wherein an outer ring baffle is arranged on the periphery of the upper end of the circular ring valve body, an inner ring baffle is arranged on the periphery of the valve cover, the lower end of the circular ring valve body passes through the cover body and is inserted in the valve cover, and the cover body is clamped between the outer ring baffle and the inner ring baffle; a center plate is arranged in the circular ring valve body, the annular space between the circular ring valve body and the center plate is an air flow channel, the center plate is connected to the inner wall surface of the circular ring valve body through a plurality of connecting strips, and the plurality of connecting strips are radially distributed around the center plate, a fixing rod is arranged at the center of the plate surface of the center plate, the fixing rod is perpendicular to the plate surface of the center plate, a fixing pipe is arranged on the bottom surface of the valve cover, the end of the fixing rod is inserted in the fixing pipe, a mounting hole is arranged in the middle of the valve plate, the valve plate is located in the circular ring valve body and is inserted on the fixing rod through the mounting hole, and a vent hole is opened on the bottom surface of the valve cover; The bottom surface of the valve cover is an inclined surface to prevent the valve cover from sticking to the surface and blocking the air. The lower end of the annular valve body and the bottom surface clamp and fix one side of the valve plate, and the other side of the valve plate is movable. The vent hole of the valve cover is close to the movable side of the valve plate. The gas filtering part of the cover body is formed by hot pressing and bonding a multi-layer cloth blank sheet, the multi-layer cloth blank sheet is bilaterally symmetrical, and a V-shaped notch is opened in the middle of the lower side of the multi-layer cloth blank sheet, and the V-shaped notch divides the lower side of the multi-layer cloth blank sheet into a lower left side and a lower right side. The lower right sides are overlapped and heat pressed to form the cover body.

2. The cross-infection-preventing breathing mask according to claim 1, characterized in that: The outer annular baffle is provided with a pipeline joint, and the pipeline joint is used to be connected to the oxygen supply pipeline of the oxygen supply equipment or to be connected to the atomized medicine pipeline of the atomized medicine supply equipment.

3. The cross-infection-preventing breathing mask according to claim 1, characterized in that: A plurality of annular protrusions are arranged on the surface of the valve plate, and the plurality of annular protrusions take the mounting hole of the valve plate as the center of the circle.

4. The cross-infection-preventing breathing mask according to any one of claims 1 to 3, characterized in that: The gas filtering part of the cover body is composed of an outer layer, an anti-virus layer, a filter layer and an inner layer in sequence. The anti-virus layer adopts a compound nano antibacterial and anti-virus layer, and the filter layer adopts a PTFE nano membrane.

5. The cross-infection-preventing breathing mask according to claim 1, characterized in that: The fixing belt is an ear-hanging belt or a strap fixed to the head; a shaped metal strip is provided on the surface of the mask body at a position corresponding to the bridge of the nose.

6. The cross-infection-preventing breathing mask according to claim 4, characterized in that: The surface of the gas filtering part of the cover body is provided with a plurality of discontinuous indentation lines, and the discontinuous indentation lines heat-press and bond the various layers in the cover body together.

7. The cross-infection-preventing breathing mask according to claim 1, characterized in that: The mask body is divided into a filtering part and a supporting part. The supporting part is made of plastic. The fixing belt, metal strip and breathing valve form the mask body supporting part. The supporting part is left empty and a clamping function is designed according to the shape of the filter sheet. The filter sheet is installed to form a complete cross-infection prevention breathing mask.

8. The cross-infection-preventing breathing mask according to claim 1, characterized in that: The cover body is divided into a filtering part and a supporting part, and the supporting part is made of plastic.

Images