CN105288891B - Gas mask and particulate respirator and method of making same - Google Patents
Gas mask and particulate respirator and method of making same Download PDFInfo
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- CN105288891B CN105288891B CN201510074925.5A CN201510074925A CN105288891B CN 105288891 B CN105288891 B CN 105288891B CN 201510074925 A CN201510074925 A CN 201510074925A CN 105288891 B CN105288891 B CN 105288891B
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- air cushion
- air bag
- bag sealing
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/10—Respiratory apparatus with filter elements
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
Abstract
The invention relates to a gas mask and a particle-proof respirator, which comprises a mask main body, an exhalation valve cap, a sealing washer, a filtering piece and a head band assembly, wherein the exhalation valve cap is arranged at the front part of the mask main body, and the gas mask and the particle-proof respirator are characterized in that: the sealing washer is a hollow annular inflatable elastomer air bag sealing air cushion, the elastomer air bag sealing air cushion element is produced by a die process that the inner wall of an open type is provided with a core die combination, and the elastomer air bag sealing air cushion is arranged at the rear part of the mask main body; the filter element is a gas mask filter element which can absorb various toxic gases in the air in a bidirectional filtering and adsorbing way by sucking the air from two sides of the filter element, so that an integral filter element has two functions of protecting various toxic gases and efficiently protecting tiny particles; the gas mask and the particulate matter preventing respirator can achieve the best sealing performance and comfort.
Description
Technical Field
The invention relates to a breathing protective mask, belongs to the technical field of special labor protective articles, and particularly relates to a gas mask, a particulate matter preventing respirator and manufacturing methods thereof.
Background
The traditional gas mask used by the existing special labor protection article is composed of a mask main body, a filter box, an exhalation valve and a tying belt, wherein a sealing gasket for contacting the mask with the human face is formed by bending and curling the same material as the mask main body, the mask main body is too soft and can deform when being worn, the sealing gasket is formed by bending and curling a single-layer rubber die, the material is poor in flexibility, the wall of the contact part of the sealing gasket and the human face is relatively thick, the pressure of each part of the human face is equal, a user can have oppression on some parts of the face after wearing the mask for a long time, and can leave an indentation on the face, and the wearing comfort is poor; on the other hand, the breathing mask is matched with a filter box with the functions of filtering and adsorbing toxic gas, the filter box can only suck air from one side (one direction) of the opening of the filter box, activated carbon particles are filled in the filter box, the toxic gas is filtered and adsorbed by the activated carbon particles, primary filter cotton can be arranged on the inner bottom layer and the outer top layer of the activated carbon layer in the filter box, the function of protecting tiny particles is poor, if high-efficiency filter cotton is arranged, the filter box can only suck air from one side of the opening of the filter box, the ventilation area of the sucked air is limited, and the suction resistance is too large and cannot be realized; the filter box matched with the existing gas mask only has a single function of protecting toxic gas and cannot efficiently protect tiny particles, the weight of activated carbon particles is heavier than that of the activated carbon particles filled in the filter box, and the weight of the filter box shell is added, so that the whole weight of the filter box is too heavy, and a user feels uncomfortable when wearing the filter box for a long time; for this reason, in 2009, 11/29, i applied for patent numbers to the national intellectual property office: 200910154351.7, the main improvement of the invention is that the material of the sealing washer directly contacting with the face is different from the material of the mask main body, the sealing washer is a rubber air bag sealing washer formed by bonding an open rubber piece, the shape of the air bag sealing washer can be basically matched with the shape of the face of the human body, but the applicant finds that in the later production process, because the rubber air bag sealing washer is in an irregular shape, the rubber air bag sealing washer is difficult to be processed into a shape which is matched with the contour of the face cavity of the human body, the wall thickness of each small part is difficult to control, the production process is complex, the yield is low, the processing speed is slow, the rubber air bag sealing washer cannot be put into batch production, and the sealing performance of the rubber air bag sealing washer does not reach the imaginable degree when.
Disclosure of Invention
The invention aims to provide a gas mask and a particulate matter preventing respirator and a manufacturing method thereof, the application provides a gas mask filter piece which has light weight, flexible shape and two protection functions, the filter piece is a gas mask filter piece which sucks air from two sides of the filter piece and filters and adsorbs various toxic gases sucked into the air in two directions, an integral filter piece simultaneously has two functions of protecting the toxic gases and efficiently protecting tiny particulate matters (the highest level filtering efficiency for filtering oily and non-oily particulate matters is more than or equal to 99.97 percent), the two functions of the gas mask and the particulate matter preventing respirator are combined into an integral product, the application adopts activated carbon fibers as various toxic gases for filtering, adsorbing and protecting, and because the adsorption capacity of the activated carbon fibers for different types of toxic gases is several times or even dozens of times larger than the adsorption capacity of the activated carbon particles, the activated carbon fiber has much less air suction resistance than the activated carbon particles, if toxic gas with the same quality is set to be adsorbed, the mass of the activated carbon fiber required by the filter element is several times less than that of the activated carbon particles required by the filter box, the filter element is used for filtering and adsorbing various toxic gases, the self weight of the shell of the filter box is cancelled, the weight of the whole filter element adopting the activated carbon fiber is much lighter than that of the whole filter box adopting the activated carbon particles, and the filter element does not feel uncomfortable feeling of falling after being worn for a long time by a user; the gas suction area of the filter element is several times larger than that of the traditional filter box, the gas suction area of the filter element is that air can be sucked from two sides (two directions) of the whole filter element simultaneously, and the air suction area is very large, so that the air suction resistance of the filter element with the high-efficiency filter cotton cannot be large; the invention creates and adopts the sealed air cushion of elastomer gasbag of the hollow annular inflatable as the seal gasket of the gas mask, the sealed air cushion of elastomer gasbag is a deformable seal gasket, the sealed air cushion of elastomer gasbag is the mould process production that the open inner wall of sealed air cushion of elastomer gasbag has mandrel combination, can control the different thickness of every small position wall of the sealed air cushion of elastomer gasbag and human face contact surface as desired, the bridge of the nose can also be thinned very much than other positions at once, the bridge of the nose of the mould wall thickness of position can be controlled very thinly in the coplanar position, other positions can be thickened at once, adopt the sealed gasket of the hollow annular inflatable, some positions are very thin and will not make the whole seal gasket deform, overcome the sealed air cushion of elastomer gasbag and process the complicated, the finished product rate is low; the elastic body air bag sealing air cushion reduces the dead cavity volume of the gas mask, the inflatable elastic body air bag sealing air cushion has flowing air pressure inside, the compression force on each part of the human face is different, the parts with different shapes of face and concave parts can be filled at will, the inflatable elastic body air bag sealing air cushion better conforms to the contours of the human face with various shapes, a user can fill or reduce air in the elastic body air bag sealing air cushion according to different shapes of the face, a little air is added when the shape of the face is small and the nose bridge is narrow, a little air is reduced when the shape of the face is large and the nose bridge is thick (high), the elastic body air bag sealing air cushion can be made softer when the elastic body air bag sealing air cushion contacts with the face, no compression feeling is caused on the convex parts of various shapes of the face, the shape of the elastic body air bag sealing air cushion is designed to be matched with the contours of, the sealing gasket of the gas mask is more suitable for various different face shapes of users and can prevent the sealing performance from being influenced when the mask slides downwards.
The invention is realized by the following steps:
the utility model provides a gas mask and particulate matter prevention respirator, includes mask main part, exhale valve cap, seal ring, filters piece, bandeau subassembly, exhale the valve cap and set up the front portion of mask main part, its characterized in that: the sealing washer is a hollow annular inflatable elastomer air bag sealing air cushion which is a deformable sealing washer, the elastomer air bag sealing air cushion element is produced by a die process that the inner wall of an open type is provided with a core die combination, the thickness of each small part of the contact surface of the elastomer air bag sealing air cushion and the face of the human body can be controlled to be different, the nose bridge can be thinned to be much thinner than other parts at once, the elastomer air bag sealing air cushion is arranged at the rear part of the mask main body, a circle of welding ring is arranged at the butt joint of the mask main body and the sealing air cushion of the elastic body air bag, a joint for butt joint with a filtering piece is arranged on the mask main body, two head holes are respectively arranged at two sides of the mask main body, an air inlet hole is arranged on the elastic body air bag sealing air cushion, an air adding nozzle is arranged at the air inlet, and an anti-skid sheet is arranged at the contact part of the inner side of the elastic body air bag sealing air cushion and the face chin of the human body; the filter piece is an anti-gas mask filter piece for absorbing various toxic gases in air from two sides of the filter piece through air suction bidirectional filtration and adsorption, the filter piece adopts activated carbon fiber and high-efficiency electrostatic melt-blown filter material combination as a filter and adsorption material together, a non-woven fabric protective layer is arranged in the filter and adsorption material, a middle-effect filter cotton layer is arranged outside the filter and adsorption material, an outer surface layer is a spun-bonded non-woven fabric, a middle supporting layer is fluffy high-resilience filter cotton, a thin filter cotton layer is arranged in the fluffy high-resilience filter cotton, two sides of the filter and adsorption material are of the same layer structure, a hole is formed in the filter and adsorption material of the same structure, a plastic joint for being connected with a mask main body is installed on the filter piece through a welding process, the multi-layer filter and adsorption material is stacked and combined into a filter piece through the welding process, and the integral filter piece is realized The filtration efficiency of the non-oily particles is more than or equal to 99.97 percent).
The sealing gasket is a hollow annular body, the annular peripheral wall of the sealing gasket can be filled with air, and the elastomer air bag sealing air cushion is provided with an air adding nozzle which is required for adjusting and controlling different shape change functions of the elastomer air bag sealing air cushion.
The elastic body air bag sealing air cushion element is produced by a die process that the core die combination is arranged on the open inner wall, the different thicknesses of the walls of each small part of the contact surface of the elastic body air bag sealing air cushion and the human face can be controlled as desired, the thickness of the contact surface of the elastic body air bag sealing air cushion and the human face is much thinner than that of other parts, the thickness of the nose bridge can be thinned immediately and is much thinner than that of other parts, the thickness of the outer wall and the thickness of the inner wall of the elastic body air bag sealing air cushion can be increased immediately, the thickness of the wall of the connection part of the nose bridge, the outer wall and the inner wall needs to be increased immediately, a step can be arranged at the connection part, the elastic body air bag sealing air cushion element is an open type elastic body air bag sealing air cushion element provided with a circle of opening, two circles of butt joint ring strips protruding inwards are arranged at the opening part of, the combined ring piece is further provided with a circle of grooves matched with the mask main body welding ring, a core mold with the shape similar to the wall thickness of each part of the air bag sealing air cushion piece subtracted is arranged in the wall of the elastic body air bag sealing air cushion piece, a circle of core mold positioning ring protruding downwards is arranged at the lower end of the core mold and at the position of a circle of opening of the air bag sealing air cushion piece, after the elastic body air bag sealing air cushion piece is processed and formed, the core mold is taken out from the circle of opening, after the elastic body air bag sealing air cushion piece product outside the core mold wall is removed, the core mold automatically resets into the mold, and the elastic body air bag sealing air cushion piece and the combined ring piece are combined into; a circle of groove of a combined ring piece of the elastomer air bag sealing air cushion is butted with a circle of welding ring of the mask main body, and the combined piece is processed and combined into a whole by adopting a welding process.
The mask is characterized in that a circle of welding ring is arranged at the joint of the mask main body and the elastomer airbag sealing air cushion, the circle of welding ring on the mask main body is arranged in a groove of the combined elastomer airbag sealing air cushion, and the mask main body and the elastomer airbag sealing air cushion are processed and connected into a whole by adopting a welding process.
The filtering piece is an anti-gas mask filtering piece which absorbs various toxic gases in the air from two sides of the filtering piece in a two-way filtering and adsorbing mode, the filtering piece is made of activated carbon fibers and high-efficiency static melt-blown filtering materials which are combined together to serve as filtering and adsorbing materials, the activated carbon fibers are arranged on a layer where the air is sucked firstly, various toxic gases in the air are filtered, adsorbed and sucked, the high-efficiency static melt-blown filtering materials are arranged on a layer where the air is sucked and then enter, and tiny particles in the air are filtered, adsorbed and sucked (the filtering efficiency of filtering oily particles and non-oily particles is more than or equal to 99.97%).
The filtering piece is provided with a plastic joint connected with the mask body by adopting a welding process, the plastic joint is internally provided with a circle of sealing ring slightly larger than the size of the inner wall of the mask body joint, the outer edge of the lower end of the plastic joint opening is provided with a circle of welding ring combined and welded with a multi-layer filtering and adsorbing material, a circle of concave containing groove is arranged between the welding ring and the outer wall of the lower end of the plastic joint opening, then the lower end of the welding ring is provided with 8 supporting strips which support two surfaces with the same structure and filter the adsorbing material and do not need to be spliced, and 2 connecting ribs are arranged between the 8 supporting strips.
The filter element is an anti-gas mask filter element which absorbs various toxic gases in air from two sides of the filter element in a bidirectional filtering and adsorbing manner, the filter element processing technology is that a plastic joint is firstly placed on a mould for welding a semi-finished product, a hole is taken on one side of a filter and adsorption material which is stacked sequentially by a spunbonded non-woven fabric, a middle-effect filter cotton, an activated carbon fiber, a high-efficiency electrostatic melt-blown filter material and a non-woven fabric protective layer, the hole of the one side of the filter and adsorption material is sleeved on a welding ring surface of the plastic joint, and the semi-finished product with one side structure is processed by adopting a welding technology; and then the semi-finished product welded into a structure on one side is placed on a die for welding the outer ring of the whole product, the outer surface layer of the semi-finished product is pasted on the die, then the thin filter cotton and the fluffy high-resilience filter cotton are placed firstly, the non-woven fabric protective layer, the high-efficiency electrostatic melt-blown filter material, the activated carbon fiber, the medium-efficiency filter cotton and the spun-bonded non-woven fabric are sequentially stacked on the other side filter adsorption material of the structure, the multi-layer filter adsorption material is processed into the whole filter element product by adopting a welding process, two inner welding groove rings and outer welding groove rings are respectively arranged on two sides of the welded filter element, and then the waste material on the inner side of the outer welding groove ring of the whole filter element product is taken off, thus the finished product (product) of the filter element.
The sealing washer is a hollow annular inflatable elastomer air bag sealing air cushion which is a deformable sealing washer, the elastomer air bag sealing air cushion is respectively a left semi-circular arc sealing air cushion component and a right semi-circular arc sealing air cushion component, two circles of butt joint edges are arranged on the left and right semi-circular arc-shaped sealing air cushion component parts, the positions of the two circles of butt joint edges are arranged on the central plane and are moved more to the right side to control the thickness of the walls of the left and right semi-circular arc-shaped sealing air cushion component parts, wherein the right semi-arc sealing air cushion component has thicker wall thickness and is bonded with the mask main body, the part with thinner wall thickness is arranged on the left semi-arc sealing air cushion component, the wall thickness of the contact surface of the assembly and the human face is much thinner than that of other parts, and the elastic air bag sealing air cushion piece adopts a processing technology of an elastic material hollow blowing forming die.
The elastic body air bag sealing air cushion piece is produced by a die process that the inner wall of an open type is provided with a core die combination, the different thicknesses of the walls of each small part of the contact surface of the elastic body air bag sealing air cushion and the human face can be freely controlled, the thickness of the contact surface of the elastic body air bag sealing air cushion and the human face is much thinner than that of the other parts, the thickness of the nose bridge can be instantly thinned to be much thinner than that of the other parts, the elastic body air bag sealing air cushion piece is an open type elastic body air bag sealing air cushion piece provided with a circle of oblique hollow seams, the thickness of a circle of oblique hollow seam pasting area is gradually thinned, a core die which is similar to the shape of the wall thickness of each part of the air bag sealing air cushion piece and is subtracted from the core die, the lower end of the core die is provided with a circle of core die positioning ring which protrudes downwards, the core mould is taken out from the circle of inclined hollow joint, after the elastic body air bag sealing air cushion part product outside the core mould wall is taken off, the core mould is automatically reset into the mould, the circle of inclined hollow joint is bonded and sealed, and the inner side of the elastic body air bag sealing air cushion part is provided with a circle of containing groove matched with the mask main body.
The elastic body air bag sealing air cushion element is produced by a die process that the inner wall of the elastic body air bag sealing air cushion element is provided with a core die combination, the different thicknesses of the walls of each small part of the contact surface of the elastic body air bag sealing air cushion and the human face can be freely controlled, the thickness of the contact surface of the elastic body air bag sealing air cushion and the human face is much thinner than that of other parts, the thickness of the nose bridge can be instantly thinned to be much thinner than that of other parts, the elastic body air bag sealing air cushion element is an open type elastic body air bag sealing air cushion element provided with a circle of opening, two bonding edges which are protruded outwards are arranged at the circle of opening, the core die with similar shape of subtracting the wall thickness of each part of the air bag sealing air cushion element is arranged in the wall of the elastic body air bag sealing air cushion element, a circle of core die positioning ring which is protruded downwards is arranged, after the elastomer air bag sealing air cushion product outside the core mold wall is taken off, the core mold is automatically reset into the mold, and two circles of grooves matched with the two bonding edges protruding outwards are arranged on the mask main body.
The invention creates the elastomer air sac sealing air cushion which takes a hollow annular inflatable sealing washer, the elastomer air sac sealing air cushion is a deformable sealing washer, the elastomer air sac sealing air cushion is produced by a mould process that the inner wall of the elastomer air sac sealing air cushion is opened and is provided with a core mould combination, the different thicknesses of the walls of each small part of the contact surface of the elastomer air sac sealing air cushion and the human face can be controlled as desired, the nose bridge can be thinned more than other parts at once, the elastomer air sac sealing air cushion is made of elastomer materials, thereby simplifying the processing process, improving the processing speed, ensuring the quality of the produced elastomer air sac sealing air cushion, simultaneously enabling the shape of the elastomer air sac sealing air cushion to better conform to the contours of the human face with various shapes, and the sealing washer of the gas mask produced by the method can achieve the best, the face mask does not feel the oppressive discomfort on some parts of the face after being worn for a long time; the invention adopts a welding process to stack and combine a plurality of layers of filtering and adsorbing materials to manufacture the gas mask filtering piece to replace the function of the traditional gas mask filtering box, adopts the filtering piece as the filtering and adsorbing material to replace the self weight of the shell of the filtering box, and adopts the weight of the integral filtering piece made of the activated carbon fiber to be lighter than that of the integral filtering box made of the activated carbon particles, so that the gas mask filtering box can not feel uncomfortable feeling of falling after being worn for a long time by a user.
Drawings
FIG. 1 is a schematic view of the respirator and particulate respirator of the present invention;
FIG. 2 is a schematic view of the respirator and particulate respirator product of the present invention;
FIG. 3 is a schematic view of the mask body (1) of the present invention;
FIG. 4 is a schematic view of the structure of the mask body (1) of the present invention;
FIG. 5 is a schematic view of the shape of the contact surface of the elastomeric bladder sealing cushion of the present invention with the human face;
FIG. 6 is a schematic view of the assembled face of the elastomeric bladder sealing cushion (31) of the present invention;
FIG. 7 is a perspective view of a central cross-sectional cut-away of the elastomeric bladder sealing cushion (31) of the present invention;
FIG. 8 is a schematic view of the processing and assembly of the elastomeric bladder sealing cushion element (31) of the present invention;
FIG. 9 is a schematic view of the assembled face of the elastomeric bladder sealing cushion (31) and assembled ring (5) of the present invention;
FIG. 10 is a front view of the assembled ring (5) of the present invention;
FIG. 11 is an overall view of the elastomer airbag cushion (3) assembled by the elastomer airbag cushion (31) and the assembled ring (5) according to the present invention;
fig. 12 is a schematic view of the plastic connector (41) of the filter element of the present invention;
FIG. 13 is a schematic cross-sectional view of a filter element (4) according to the present invention showing a cut-away configuration of a multi-layer filter-adsorbent material;
FIG. 14 is a schematic side view of the filter (4) product of the respirator and particulate respirator of the present invention;
FIG. 15 is a schematic outer surface view of a filter (4) product of the respirator and particulate respirator of the present invention;
FIG. 16 is a schematic view of the other external surface of the filter (4) product of the respirator and particulate respirator of the present invention;
FIG. 17 is a schematic view of the processing and assembly of the elastomeric bladder sealing cushion element (32) of the present invention;
FIG. 18 is a schematic view of the processing and assembly of the elastomeric bladder sealing cushion element (33) of the present invention;
FIG. 19 is a schematic view of the processing and assembly of the elastomeric bladder sealing cushion element (34) of the present invention.
Detailed Description
As shown in fig. 1, 2, 3, 4, 5, 13, 14, 15, 16, a gas mask and a particulate respirator comprises a mask main body (1), an exhalation bonnet (2), a sealing gasket (3), a filter element (4), and a headband assembly (5), wherein the exhalation bonnet (2) is arranged at the front part of the mask main body (1), and is characterized in that: the sealing washer (3) is a hollow annular inflatable elastomer air bag sealing air cushion, the elastomer air bag sealing air cushion is a deformable sealing washer, the elastomer air bag sealing air cushion pieces (31, 33, 34) are produced by a die process that a core die combination is arranged on the open inner wall, the thickness of each small part wall of the contact surface of the elastomer air bag sealing air cushion (3) and the human face can be controlled to be different, the thickness of the nose bridge can be reduced to be much thinner than that of other parts, the elastomer air bag sealing air cushion (3) is arranged at the rear part of the mask main body (1), a circle of welding ring (11) is arranged at the joint of the mask main body (1) and the elastomer air bag sealing air cushion (3), a joint (12) for butting with the filter piece (4) is arranged on the mask main body (1), two ends of the mask main body (1) are respectively provided with holes, the elastic band of the headband component (5) is inserted in the headband hole (13) in series, an air inlet (30) is arranged on the elastic body air bag sealing air cushion (3), an air adding nozzle (6) is arranged at the air inlet (30), and an anti-skid sheet (301) is arranged at the contact part of the inner side of the elastic body air bag sealing air cushion (3) and the face chin of the human body; the filtering piece (4) is an anti-gas mask filtering piece (4) which sucks air from two sides of the filtering piece and filters, adsorbs and sucks various toxic gases in the air in a bidirectional mode, the filtering piece (4) adopts activated carbon fibers (403) and high-efficiency electrostatic melt-blown filtering materials (404) to be combined together to serve as filtering and adsorbing materials, a non-woven fabric protective layer (405) is arranged in the filtering and adsorbing materials, a middle-effect filtering cotton (402) is arranged outside the filtering and adsorbing materials, the outer surface layer is a spun-bonded non-woven fabric (401), the middle supporting layer is fluffy high-resilience filtering cotton (406), a thin filtering cotton (407) is arranged in the fluffy high-resilience filtering cotton (406), the two sides are filtering and adsorbing materials with the same layer structure, a hole is formed in one side of the filtering and adsorbing material with the same structure, and a plastic joint (41) connected with a main, the filter element (4) is integrally processed by stacking and combining a plurality of layers of filtering and adsorbing materials by adopting a welding process, so that the integral filter element (4) has two functions of protecting various toxic gases and efficiently protecting tiny particles (the filtering efficiency of filtering oily and non-oily particles is more than or equal to 99.97 percent); the various components are fabricated according to the techniques described above and assembled according to the structures of figures 1 and 2, thus completing the assembly of a respirator and particulate respirator.
As shown in fig. 1 and 2, the inflatable hollow annular sealing cushion of the elastomer airbag for the sealing gasket (3) is made of elastomer material, the deformable hollow annular sealing cushion is a deformable sealing gasket, the interior of the annular peripheral wall of the air bag can be filled with air, an air adding nozzle (6) is arranged on the elastic body air bag sealing air cushion (3), the air adding nozzle (6) is used for adjusting and controlling the functions of the different shapes of the elastomer air bag sealing air cushion (3), the gas in the sealing air cushion of the elastic body air bag can be filled or reduced according to different face shapes of users, a little gas is filled in the sealing air cushion of the elastic body air bag when the face shape is small, the nose bridge is narrow, and a little gas is reduced when the face shape is large and the nose bridge is thick (high).
As shown in fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11 and fig. 4, the elastic body air bag sealing air cushion element (31) is produced by a mold process that an open inner wall is provided with a core mold combination, the different thicknesses of the walls of each small part of the contact surface of the elastic body air bag sealing air cushion (3) and the human face can be controlled as desired, the wall thickness of the contact surface (319) of the human face is much thinner than those of other parts, the wall thickness (315) of the nose bridge can be thinned immediately thinner than those of other parts, the wall thicknesses of the outer wall (317) and the inner wall (318) of the elastic body air bag sealing air cushion (3) can be increased immediately, the wall thickness of the joint of the nose bridge (315) and the outer wall (317) and the inner wall (318) needs to be increased immediately, a step (316) can be arranged at the joint, the elastic body air bag sealing air cushion element (31, two inward convex butt joint ring strips (312) are arranged at the position of one circle of opening (311) of the elastic body air bag sealing air cushion piece, a combined ring piece (5) is arranged at the position of the butt joint ring strips (312), two circles of grooves (51) matched with the butt joint ring strips (312) are arranged on the combined ring piece (5), one circle of groove (52) matched with the mask main body welding ring (11) is further arranged on the combined ring piece (5), a core mould (313) subtracting the wall thickness shape of each part of the air bag sealing air cushion piece is arranged in the wall of the elastic body air bag sealing air cushion piece (31), a circle of downward convex core mould positioning ring (314) is arranged at the position of one circle of opening (311) of the air bag sealing air cushion piece at the lower end of the core mould (313), after the elastic body air bag sealing air cushion piece (31) is processed and formed, the core mould (313) is taken out from the circle of opening (311), and after an elastic body air bag sealing air cushion piece (31) product outside the, the core mould (313) is automatically reset into the mould, and the elastomer air bag sealing air cushion piece (31) and the combined ring piece (5) are combined into the elastomer air bag sealing air cushion (3); a circle of groove (52) of a combined ring piece (5) of the elastomer air bag sealing air cushion (3) is butted with a circle of welding ring (11) of the mask main body (1), and the welding process is adopted to process and combine the combined parts into a whole; the elastomeric balloon sealing cushion (31) is now assembled with the mask body (1).
As shown in fig. 4, 10 and 11, a circle of welding ring (11) is arranged at the butt joint of the mask main body (1) and the elastomer airbag sealing air cushion (3), the circle of welding ring (11) on the mask main body (1) is arranged in a groove (52) of the combined elastomer airbag sealing air cushion (3), and the mask main body (1) and the elastomer airbag sealing air cushion (3) are processed and connected into a whole by adopting a welding process.
As shown in fig. 13, the filter element (4) is a gas mask filter element (4) which sucks air from both sides of the filter element and filters and adsorbs various toxic gases in the sucked air in two directions, the filter element (4) adopts the combination of activated carbon fibers (403) and a high-efficiency electrostatic melt-blown filter material (404) as a filter and adsorption material, the activated carbon fibers (403) are arranged on a first intake layer of the sucked air to filter and adsorb various toxic gases in the sucked air, the high-efficiency electrostatic melt-blown filter material (404) is arranged on a second intake layer of the sucked air to filter and adsorb micro-particles in the sucked air (the filtering efficiency on oily and non-oily particles is more than or equal to 99.97%).
As shown in fig. 12, a plastic joint (41) for connecting with a mask body is installed on the filter element (4) by adopting a welding process, a circle of sealing ring (411) which is slightly larger than the size of the inner wall of the joint (12) of the mask body is arranged in the plastic joint (41), a circle of welding ring (412) for combining and welding with multiple layers of filtering and adsorbing materials is arranged outside the lower end of the opening of the plastic joint (41), a circle of concave accommodating groove (415) is arranged between the welding ring (412) and the outer wall of the lower end of the opening of the plastic joint (41), 8 supporting strips (413) for supporting the filtering and adsorbing materials with the same structure on two sides and not allowing splicing are arranged at the lower end of the welding ring (412), and 2 connecting ribs (414) are arranged between the 8 supporting strips (413).
As shown in fig. 12, 13, 14, 15, and 16, the filter element (4) is a gas mask filter element (4) which can absorb various toxic gases in the air by bidirectional filtration from the air sucked from both sides of the filter element, the filter element (4) is processed by placing a plastic joint (41) on a die for welding a semi-finished product, sequentially stacking a filter-absorbing material on one side of the structure consisting of a spunbonded nonwoven fabric (401), a middle-effect filter cotton (402), an activated carbon fiber (403), a high-efficiency electrostatic melt-blown filter medium (404), and a nonwoven fabric protective layer (405), forming a hole, sleeving the hole on a welding ring (412) of the plastic joint (41), and processing the semi-finished product into a one-finished product by welding; then a semi-finished product welded into a structure on one side is placed on a mould welded with the outer ring of the whole product, the outer surface layer of the semi-finished product is bonded with the spun-bonded non-woven fabric (401) and is attached to the mould, then thin filter cotton (407) and fluffy high-resilience filter cotton (406) are placed, and the semi-finished product is composed of a non-woven fabric protective layer (405), a high-efficiency electrostatic melt-blown filter material (404) and activated carbon fibers (403), the middle-effect filter cotton (402) and the spun-bonded non-woven fabric (401) are sequentially stacked on the other side of the structure to filter the adsorbing material, the multi-layer filter adsorbing material is processed into an integral filter product by adopting a welding process, two inner welding groove rings (421) and outer welding groove rings (422) are respectively arranged on two sides of the welded filter, and then the waste outside the inner side of the outer welding groove ring (422) of the integral filter product is removed, so that a finished product (product) of the filter (4) is processed.
As shown in fig. 17, the sealing gasket (3) is a hollow annular inflatable elastomeric airbag sealing cushion, the elastomeric airbag sealing cushion is a deformable sealing gasket, the elastomeric airbag sealing cushion (32) is a left semicircular arc sealing cushion assembly (321) and a right semicircular arc sealing cushion assembly (322), two circles of butt edges (323) are respectively arranged on the left and right semicircular arc sealing cushion assemblies (321, 322), the positions of the two circles of butt edges (323) are arranged at the central plane and move more to the right to control the thickness of the walls of the left and right semicircular arc sealing cushion assemblies (321, 322), wherein the wall thickness of the right semicircular arc sealing cushion assembly (322) is bonded with the main body, the part with the thinner wall thickness is arranged on the left semicircular arc sealing cushion assembly (321), the contact surface (324) of the assembly (321) and the human face has a larger wall thickness than other parts, the elastomer airbag sealing air cushion piece (32) adopts the processing technology of an elastomer material hollow blowing forming die, and then the elastomer airbag sealing air cushion piece (32) is arranged at the rear part of the mask main body (1), so that the elastomer airbag sealing air cushion piece (32) and the mask main body (1) are assembled.
As shown in figure 18, the elastomer air bag sealing air cushion piece (33) is produced by a mould process that the core mould combination is arranged on the open inner wall, the different thicknesses of the walls of each small part of the contact surface of the elastomer air bag sealing air cushion (3) and the human face can be controlled as desired, the wall thickness of the contact surface (339) of the human face is much thinner than that of other parts, the thickness of the bridge of the nose can be thinned much thinner than that of other parts at once, the elastomer air bag sealing air cushion piece (33) is an open elastomer air bag sealing air cushion piece provided with a circle of inclined hollow seams (331), the thickness of the pasting area of the circle of inclined hollow seams (331) is gradually thinned, a core mould (333) with the similar shape by subtracting the wall thickness of each part of the air bag sealing air cushion piece is arranged in the wall of the elastomer air bag sealing air cushion piece (33), a circle of core mould positioning ring (334) which protrudes downwards is arranged at the circle of inclined hollow seams (331) of, after the elastomer airbag sealing air cushion piece (33) is processed and molded, the core mold (333) is taken out from a circle of inclined hollow seams (331), after the elastomer airbag sealing air cushion piece (33) product outside the core mold wall is removed, the core mold (333) automatically resets into the mold, the circle of inclined hollow seams (331) is bonded and sealed, a circle of accommodating groove (332) matched with the mask main body (1) is arranged on the inner side of the elastomer airbag sealing air cushion piece (33), then the edge ring on the outer side of the mask main body (1) is installed in the accommodating groove (332) of the elastomer airbag sealing air cushion piece (33), and the elastomer airbag sealing air cushion piece (33) and the mask main body (1) are assembled.
As shown in fig. 19, the elastic body air bag sealing air cushion element (34) is produced by a mold process that a core mold combination is arranged on the open inner wall, the different thicknesses of the walls of each small part of the contact surface of the elastic body air bag sealing air cushion (3) and the human face can be controlled as desired, the wall thickness of the contact surface (349) of the elastic body air bag sealing air cushion and the human face is much thinner than that of other parts, the thickness of the nose bridge can be thinned much thinner than that of other parts at once, the elastic body air bag sealing air cushion element (34) is an open type elastic body air bag sealing air cushion element provided with a circle of opening (341), two bonding edges (342) protruding outwards are arranged at the circle of opening (341), a core mold (343) with the similar shape of the wall thickness minus each part of the air bag sealing air cushion element is arranged in the wall of the elastic body air bag sealing air cushion element (34), a circle of core mold positioning ring (344) protruding downwards is arranged at, after the elastomer airbag sealing air cushion piece (34) is processed and molded, the core mold (343) is taken out from a circle of openings (341), after the elastomer airbag sealing air cushion piece (34) product outside the core mold wall is taken off, the core mold (343) automatically returns to the mold, two circles of grooves (112) matched with the two bonding edges (342) protruding outwards are arranged on the mask main body (1), then the two bonding edges (342) protruding outwards of the elastomer airbag sealing air cushion piece (34) are arranged in the two circles of grooves (112) of the mask main body (1), and the elastomer airbag sealing air cushion piece (34) and the mask main body (1) are assembled.
Claims (5)
1. A gas mask and a particle-proof respirator comprise a mask main body (1), an exhalation valve cap (2), a sealing washer (3), a filtering piece (4) and a head band assembly (7), wherein the exhalation valve cap (2) is arranged at the front part of the mask main body (1), and a joint (12) which is butted with the filtering piece (4) is arranged on the mask main body (1); the method is characterized in that: the sealing washer (3) is a hollow annular inflatable elastomer air bag sealing air cushion, the elastomer air bag sealing air cushion is a deformable sealing washer, the elastomer air bag sealing air cushion pieces (31, 33 and 34) are produced by a die process that a core die combination is arranged on the open inner wall, the thickness of each small part wall of the contact surface of the elastomer air bag sealing air cushion (3) and the human face can be controlled to be different, the thickness of the nose bridge can be reduced at once to be thinner than that of other parts, the elastomer air bag sealing air cushion (3) is arranged at the rear part of the mask main body (1), a circle of welding ring (11) is arranged at the joint of the mask main body (1) and the elastomer air bag sealing air cushion (3), two head belt holes (13) are respectively arranged at two sides of the mask main body (1), an air inlet hole (30) is arranged on the elastomer air bag sealing air cushion (3), and an air, an anti-slip sheet (301) is arranged at the contact part of the inner side of the elastomer air bag sealing air cushion (3) and the chin of the face of the human body; the filtering piece (4) is an anti-gas mask filtering piece (4) which sucks air from two sides of the filtering piece and filters, adsorbs and sucks various toxic gases in the air in a bidirectional mode, the filtering piece (4) adopts activated carbon fibers (403) and high-efficiency electrostatic melt-blown filtering materials (404) to be combined together to serve as filtering and adsorbing materials, a non-woven fabric protective layer (405) is arranged in the filtering and adsorbing materials, a middle-effect filtering cotton (402) is arranged outside the filtering and adsorbing materials, the outer surface layer is a spun-bonded non-woven fabric (401), the middle supporting layer is fluffy high-resilience filtering cotton (406), a thin filtering cotton (407) is arranged in the fluffy high-resilience filtering cotton (406), the two sides are filtering and adsorbing materials with the same layer structure, a hole is formed in one side of the filtering and adsorbing material with the same structure, and a plastic joint (41) connected with a main, the filter element (4) is integrally processed by stacking and combining a plurality of layers of filtering and adsorbing materials by adopting a welding process, so that the integral filter element (4) has two functions of protecting various toxic gases and efficiently protecting tiny particles, and the filtering efficiency of filtering oily and non-oily particles is more than or equal to 99.97 percent;
the elastic body air bag sealing air cushion piece (31) is produced by a die process that a core die combination is arranged on the open inner wall, different thicknesses of the wall of each small part of the contact surface of the elastic body air bag sealing air cushion (3) and the human face can be controlled as desired, the wall of the contact surface (319) of the contact surface with the human face is thinner than the wall of other parts, the wall of the nose bridge (315) can be thinned as soon as compared with the wall of other parts, the wall thicknesses of the outer wall (317) and the inner wall (318) of the elastic body air bag sealing air cushion (3) can be increased as soon as possible, the wall thickness of the joint of the nose bridge (315) and the outer wall (317) as well as the inner wall (318) needs to be increased as soon as possible, a step (316) can be arranged at the joint, the elastic body air bag sealing air cushion piece (31) is an open type elastic body air bag sealing air cushion piece provided with a circle of openings (, a combined ring piece (5) is arranged at the position of the butt joint ring strip (312), two rings of grooves (51) matched with the butt joint ring strip (312) are arranged on the combined ring piece (5), one ring of grooves (52) matched with the mask main body welding ring (11) is further arranged on the combined ring piece (5), a core mould (313) with the shape similar to the shape of the wall thickness of each part of the air bag sealing air cushion part is subtracted from the wall of the elastic air bag sealing air cushion part (31), a circle of core mould positioning rings (314) which are protruded downwards are arranged at the lower end of the core mould (313) at a circle of openings (311) of the air bag sealing air cushion element, after the elastic air bag sealing air cushion element (31) is processed and molded, the core mould (313) is taken out from the circle of openings (311), after the elastic body air bag sealing air cushion piece (31) product outside the core mold wall is removed, the core mold (313) automatically resets into the mold, and the elastic body air bag sealing air cushion piece (31) and the combined ring piece (5) are combined into an elastic body air bag sealing air cushion (3); a circle of groove (52) of a combined ring piece (5) of the elastomer air bag sealing air cushion (3) is butted with a circle of welding ring (11) of the mask main body (1), and the welding process is adopted to process and combine the combined parts into a whole;
a circle of welding ring (11) is arranged at the butt joint of the mask main body (1) and the elastomer airbag sealing air cushion (3), the circle of welding ring (11) on the mask main body (1) is arranged in a groove (52) of the combined elastomer airbag sealing air cushion (3), and the mask main body (1) and the elastomer airbag sealing air cushion (3) are processed and connected into a whole by adopting a welding process;
a circle of sealing rings (411) with large size with the inner wall of the mask main body joint (12) are arranged in the plastic joint (41), a circle of welding rings (412) for combining and welding with multiple layers of filtering and adsorbing materials are arranged outside the lower end of the opening of the plastic joint (41), and a circle of concave accommodating grooves (415) are arranged between the welding rings (412) and the outer wall of the lower end of the opening of the plastic joint (41);
the filter element (4) is an anti-gas mask filter element (4) which sucks air from two sides of the filter element and filters and adsorbs various toxic gases sucked in the air in a bidirectional mode, the filter element (4) is processed by firstly placing a plastic joint (41) on a die for welding a semi-finished product, taking a hole on one side of a filter and adsorption material of a spunbonded non-woven fabric (401), a middle-effect filter cotton (402), an activated carbon fiber (403), a high-efficiency electrostatic melt-blown filter material (404) and a non-woven fabric protective layer (405) which are sequentially stacked in sequence, sleeving the hole on one side of the filter and adsorption material on the surface of a welding ring (412) of the plastic joint (41), and processing the hole into the semi-finished product of one side structure by adopting a welding process; and then the semi-finished product welded into a structure on one side is placed on a die for welding the outer ring of the integral product, the outer surface layer of the semi-finished product is bonded with the spunbonded non-woven fabric (401) and is attached to the die, then the thin filter cotton (407) and the fluffy high-resilience filter cotton (406) are placed first, and then the non-woven fabric protective layer (405), the high-efficiency electrostatic melt-blown filter material (404), the activated carbon fiber (403), the medium-efficiency filter cotton (402) and the spunbonded non-woven fabric (401) are sequentially stacked on the other side of the structure to filter the adsorption material, the multi-layer filtration adsorption material is processed into the integral filter product by adopting a welding process, two inner welding groove rings (421) and outer welding groove rings (422) are respectively arranged on two sides of the welded filter piece, and the waste material on the outer side of the inner welding groove rings (422) of the integral filter product is removed.
2. A respirator and particle-proof respirator according to claim 1, wherein: the elastomer air bag sealing air cushion with the hollow annular inflatable sealing washer (3) is made of elastomer materials, the sealing washer is a hollow annular body, air can be filled in the annular peripheral wall of the sealing washer, an air adding nozzle (6) is arranged on the elastomer air bag sealing air cushion (3), and the air adding nozzle (6) is required for adjusting and controlling the different shape changing functions of the elastomer air bag sealing air cushion (3).
3. A respirator and particle-proof respirator according to claim 1, wherein: the filtering piece (4) is formed by arranging the activated carbon fiber (403) on an intake gas first entering layer, filtering and adsorbing various toxic gases in the intake gas, and arranging the high-efficiency electrostatic melt-blown filtering material (404) on an intake gas later entering layer, filtering and adsorbing micro particles in the intake gas.
4. A respirator and particle-proof respirator according to claim 1, wherein: the elastic body air bag sealing air cushion piece (33) is produced by a die process that the inner wall of the open type is provided with a core die combination, the different thicknesses of the walls of each small part of the contact surface of the elastic body air bag sealing air cushion (3) and the human face can be freely controlled, the wall of the contact surface (339) of the human face is thinner than the walls of other parts, the nose bridge can be thinned at once to be thinner than the walls of other parts, the elastic body air bag sealing air cushion piece (33) is an open type elastic body air bag sealing air cushion piece provided with a circle of inclined hollow seams (331), the thickness of the pasting area of the circle of inclined hollow seams (331) is gradually thinned, a core die (333) which is similar to the shape of the wall of each part of the air bag sealing air cushion piece and is subtracted from the wall of the elastic body air bag sealing air cushion piece, the core die (333) is provided with a circle of core die positioning ring (334) which protrudes, after the elastomer airbag sealing air cushion piece (33) is processed and molded, the core mold (333) is taken out from a circle of oblique hollow seams (331), after the elastomer airbag sealing air cushion piece (33) product outside the core mold wall is taken off, the core mold (333) automatically resets into the mold, the circle of oblique hollow seams (331) is bonded and sealed, and the inner side of the elastomer airbag sealing air cushion piece (33) is provided with a circle of containing grooves (332) matched with the mask main body (1).
5. A respirator and particle-proof respirator according to claim 1, wherein: the elastic body air bag sealing air cushion piece (34) is produced by a die process that the inner wall of the open type is provided with a core die combination, the different thicknesses of the walls of each small part of the contact surface of the elastic body air bag sealing air cushion (3) and the human face can be controlled as desired, the wall of the contact surface (349) of the contact surface with the human face is thinner than the wall of other parts, the nose bridge can be thinned at once to be thinner than other parts, the elastic body air bag sealing air cushion piece (34) is an open type elastic body air bag sealing air cushion piece provided with a circle of opening (341), two bonding edges (342) protruding outwards are arranged at the circle of opening (341), a core die (343) with the shape similar to the wall thickness of each part of the air bag sealing air cushion piece is arranged in the wall of the elastic body air bag sealing air cushion piece (34), a circle of core die positioning ring (344) protruding downwards is arranged at the position of the lower end, after the elastomer air bag sealing air cushion element (34) is formed, the core mold (343) is taken out from a circle of openings (341), after the elastomer air bag sealing air cushion element (34) product outside the core mold wall is taken off, the core mold (343) automatically returns to the mold, and two circles of grooves (112) matched with the two bonding edges (342) protruding outwards are arranged on the mask main body (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510074925.5A CN105288891B (en) | 2015-02-08 | 2015-02-08 | Gas mask and particulate respirator and method of making same |
| PCT/CN2016/000041 WO2016124058A1 (en) | 2015-02-08 | 2016-01-21 | Gas mask and anti-particulate respirator and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510074925.5A CN105288891B (en) | 2015-02-08 | 2015-02-08 | Gas mask and particulate respirator and method of making same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105288891A CN105288891A (en) | 2016-02-03 |
| CN105288891B true CN105288891B (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510074925.5A Active CN105288891B (en) | 2015-02-08 | 2015-02-08 | Gas mask and particulate respirator and method of making same |
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| CN (1) | CN105288891B (en) |
| WO (1) | WO2016124058A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2564408A (en) * | 2017-07-06 | 2019-01-16 | Howard House David | Anti-pollution mask |
| CN111084941A (en) * | 2020-02-13 | 2020-05-01 | 河南驼人医疗器械集团有限公司 | Air supply type micro-positive pressure protective mask |
| WO2021174692A1 (en) * | 2020-03-03 | 2021-09-10 | 河南驼人贝斯特医疗器械有限公司 | Novel medical face mask having replaceable filter system |
| CN111773573B (en) * | 2020-06-02 | 2022-03-25 | 湖州师范学院 | Automatic antiviral defogging intelligent breathable mask |
| CN115228001B (en) * | 2021-04-25 | 2023-09-29 | 张顺 | Two-function filtering piece for preventing poison and particulate matter and its making method |
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| US6467481B1 (en) * | 1999-04-29 | 2002-10-22 | Vase Technology | Stackable filter device |
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| KR100943196B1 (en) * | 2009-08-03 | 2010-02-19 | (주)씨앤투스 | The filter for respirator |
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| Publication number | Publication date |
|---|---|
| WO2016124058A1 (en) | 2016-08-11 |
| CN105288891A (en) | 2016-02-03 |
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