CN87209540U - Protective gauge mask for safeguarding breath - Google Patents

Abstract

The utility model relates to a protective gauze mask for safeguarding breath, comprising an air bag mask whose external structure is similar to the external structure of a health gauze mask. The utility model is communicated with a device of clean air source through a pipe fitting. The air bag mask is made up by sewing the medical artificial leather as face material, having an interlayer of foamed ventilated material. The utility model makes air which flows across the air bag match with the face of a human body and forms a flowing air film and an air jet on the certain position of the face of a human body through one side of the face material being provided with a multiplex throttling structure, which creates the condition that the face of a human body is separated from the external air environment and also provides a personal safeguarding tool for the working places of traditional industry.

Description

Protective gauge mask for safeguarding breath

The utility model is created the personal protective mask device of relevant protection human body respiration, relates in particular to be used for gas roof and the personal labor protection Mask devices of dustproof.

In the evolution of conventional industries, especially in machine-building, chemical industry is produced, and some operation occasion of industry such as mining, for example surperficial coated (oiling etc.) and removing surface (blasting treatment etc.), produce plastic raw materials, pharmacy, operation occasions such as ore pulverizing, all the time there is serious threat to health, promptly by breathing various toxic gases or dust, make the people who is operated in these places suffer in various degree occupational disease, as everyone knows, fail fine addressing this problem for a long time, even in new industry continuous flourish today, above-mentioned workplace is expected to be replaced by increasingly automated or unattended workshop or workshop, but this can't be popularized after all in the near future.

The personal safety device of traditional protection human body respiration; still continue to use health or health cotton cloth respirator in numerous occasions; the occasion that severe toxicity is arranged in minority; can use breathing mask; but this breathing mask does not generally fit into wide industrial and mineral labor protection place, and the people's that common health or health care mask can not solve basically in site for labour work gas defence dustproof labor protection problem.

Therefore the utility model is created exactly in order to address this problem; and a kind of protective mask device of protecting human body respiration to use is proposed; for the people in above-mentioned operation place work provide a kind of both had can protect effectively produce in those operation process to the effect of the extremely harmful gas and dust of human body to the human body invasion and attack, and be convenient to the labor protection apparatus wearing thereby be easy to promote simultaneously.

The utility model is created the protective mask device and is comprised external form structure and a similar bladder-type mouth mask and the pure air source apparatus of health gauze mask, and this device is connected by pipeline connecting parts and air bag mouth mask.Described air bag mouth mask, by the ventilative structure of the multiple throttling that is provided with thereon, when the air bag mouth mask is worn, make the flow through ventilative structure of described throttling of air bag mouth mask of the pure air that constantly obtains supplying from described pure air source apparatus, and and human body face match, in the horizontal position, neat nose slightly upper of human body face to neat position, oral area slightly lower and the attached zone of advancing of left and right sides form the zone that the air feed capsule mouth mask wearer safety that separates with the ambient gas environment that surrounded by air film that flows and gas jet is breathed.

The protective mask device that the utility model is created is owing to have the pure air source apparatus of independent operating, because the clean level of the pure air of exporting from this device can be effectively controlled and check, make described air bag mouth mask obtain to have the pure air of certain pressure from the pure air source apparatus, special tectonic by air bag mouth mask itself, can form the zone that roughly separates with the ambient gas environment in the regulation zone of human body face for personal security's breathing, and its profile structure of described air bag mouth mask is similar to health gauze mask, being convenient to the people wears, therefore its effectively gas defence, dustproof and wear conveniently, thereby for solving the medium-term and long-term gas roofs that exist of above-mentioned conventional industries, dustproof occupational labor protection question provides a kind of new approach or device.

The protective mask device that the utility model is created is described by the following examples, and in conjunction with the accompanying drawings.

Fig. 1 is the structure chart that schematically illustrates the air bag mouth mask, and this figure is the front view that (the not one side that contacts with human body face) seen from its front, and the expression half section.

Fig. 2 schematically illustrates the front view that air bag mouth mask shown in Figure 1 is seen from its reverse side (one side that contacts with human body face), and the expression broken section.

Fig. 3 is the top view that schematically illustrates air bag mouth mask shown in Figure 2, and schematically illustrates broken section.

Fig. 4 is the profile that schematically illustrates along the A-A line of air bag Respirator structure figure shown in Figure 2.

Fig. 5 is the profile that schematically illustrates along the B-B line of air bag Respirator structure figure shown in Figure 2.

Condition diagram when Fig. 6 schematically illustrates the use of air bag mouth mask.

Fig. 7 is the structure chart of air filtration pressure regulator that schematically illustrates the component part of pure air source apparatus.

Fig. 8 is the allocation plan that schematically illustrates the pure air source apparatus that comprises flow control valve.

Fig. 9 is the structure chart that schematically illustrates flow control valve.

Now referring to Fig. 1 to Fig. 3,1 is the front of air bag mouth mask, 2 is its back side, make lining with medical artificial leather or other similar material for making clothes, and interior folder medical foam gas permeable material, for example foam rubber or plastics form by making, 6 on mouth mask front 1 with similar artificial leather material for making clothes by making the gas transmission chamber of formation, and by pipeline connecting parts 5 and 5-1,5-2 etc. are communicated with the pure air source apparatus, and 3 is foam gas permeability interlayer, 4 are the gas transmission conduit, adopt medical plastic catheter, introduce pure air in the air bag gas transmission chamber from face 1, represents sewing line with the dotted line among the figure, in Fig. 1, be illustrated in the air bag mouth mask the symmetrical longitudinal axis Lower Half around attachedly advance, the interlayer of its gas permeable material is clipped one, the outlet of gas transmission conduit 4 is arranged on herein.

Expression air bag mouth mask shown in Figure 1 among Fig. 2, on this horizontal face of the air bag mouth mask of about first half of its symmetrical longitudinal axis, only constitute face 2 by single-layer fabric, meanwhile and in the Lower Half of the longitudinal axis, promptly on face 2, be added with one deck lining 11 by making, and only three limits around the lining 11 are made, does not make on one side down, and the state when simultaneously the lining 2 in longitudinal axis first half left side being taken away is taken lining 11 away in the left side of the expression bead cover symmetry longitudinal axis among the figure.

Among Fig. 2,12 is by the intensive staggered vertical bar shaped combined air void structure that forms continuously of a succession of zigzag air gap, it can be made on face 2 with the similar member of marching and constitute, 13 is near the upward ventilative aperture group in mouth mask longitudinal axis both sides that is positioned at the position, slightly lower of described vertical bar shaped combined air void structure, (one group of hole only representing the left side among the figure), 14 is by fastening the corrugation shape soft metal thin slice of 11 in face of being fixedly installed on 2 and face, be provided with expression among the same member 14(figure with one side of its symmetry) be provided with down on the face 2 below these corrugation shape soft metal thin slices about each one group of air-vent, (not shown), the thin hardware 14 of corrugated is configured to make valley of corrugation down, the centre position of right each the one group of aperture of this external bottom left also is provided with the bigger slightly air-vent of a diameter 15.

Fig. 3 is the top view of air bag Respirator structure shown in Figure 2.

The effect of the protective mask device that the utility model is created now further specifies.

When air bag mouth mask and compressed air source unit connection, throttling action because of vertical bar shaped combined air void 12, there is a small amount of or micro-pure air constantly excessive through foam gas permeable material and combined air void 12, when the air bag mouth mask is worn at human body face, the air film that air-flow that this is constantly excessive and human body face cooperate formation to flow, this air film plays a part surrounding environment pernicious gas and human body respiration are separated.

When the people wears this air bag mouth mask, the nose position that each one group of air-vent 13 roughly is positioned at the people about going up is attached to be advanced, the required pure air of human body respiration is exactly by transporting to air in the air bag through conduit 4, and the throttling through the foam gas permeable material of a segment distance provides through air-vent 13 again.

In addition, the suitable part of the pure air in conduit 4 is sent into the air bag mouth mask is through the throttling of a segment distance foam gas permeable material, discharge to external environment through the valley of corrugation of the thin hardware 14 of corrugated by each one group of air-vent discharge about following, thereby form one jet in order to help human body respiration, or the discharge carbon dioxide, also play a part pernicious gas in the environment and human body respiration are separated simultaneously.Air-vent 15 can produce jet equally, plays a part auxiliary human body respiration or discharges carbon dioxide.

Respiratory capacity or the lung capacity of considering the people in addition can vary with each individual, therefore many places are provided with opening on conduit 4, and with the sliding sleeve 7 that slides on the conduit 4, control closing of this opening with hand push sliding sleeve 7, and come the displacement of sliding sleeve 7 spacing by the stage portion 8 on the conduit 4, when human body respiration needs big air demand, can open the opening near the conduit 4 the air-vent 13, and the opening on closure catheter for closing 4 terminals, the air bag mouth mask of this moment just can satisfy the needs of the people's breathing with big lung capacity.

Now referring to Fig. 6, the air bag mouth mask is by pipeline connecting parts 5,5-1 and 5-2, and insert in the pipe joint 52 of similar oxygen hose 51, these pipeline connecting parts 5,5-1,5-2 and 52 structure are similar mutually, all realize that by screw thread and O RunddichtringO assembling connects mutually, and make flexible pipe 11 and joint 52 thereof be positioned at human body behind by girdle ring 54.

Referring to Fig. 7, the air filtration regulator has case 21 and case flap 22, be respectively equipped with the output inlet of air on the flap 22, also have and comprise that felt is crossed filter core and the emery wheel pipe is crossed the combined filtration of filter core partly, this filters structural member partly and comprises flange shape sleeve 24, the one end embeds in the flap 22, has the screw rod 23 of screw thread respectively with two, the one end passes sleeve 24,22 formation are threaded with flap, its other end slides through the end of case 21, and in usefulness nut 28 lockings of case 21 outsides, has the dished wheel 25 of screw with the center, thereby can be fixed on the certain position of screw rod 23, the emery wheel pipe cross filter core 26 by elastic buffer unit between dished wheel 25 and sleeve 24, and adjust by the screw thread on the butterfly dish 25 and the emery wheel pipe to be installed to cross filter core 26, then felt is crossed filter core 27 and be fixedly mounted between butterfly dish 25 and the sleeve 23, the described center that partly is positioned at case 21 substantially of filtering by fastening.

In addition, the air filtration regulator also has pressure regulation partly.On flap 22, export the inlet except forming air, also form pressuring adjusting valve base, this valve seat has air and advances, outlet, and form by the barrier film 33 pressure regulation chambers 34 that outlet is communicated with pressure regulator valve that seal, pressure regulator valve has spherical valve core 31, with the valve rod 32 that applies elastic force to spool 31, spool 31 is in as shown in the figure vertical direction, be positioned at spherical valve core on, keep balance under the spring force effect of lower position, regulating spring 36 is between the spring seat of honour 38 and spring lower seat sub-assembly 35, spring 36 passes through seat combined piece 35 down, and can apply active force to spool by valve rod 32, in order to the output pressure of keeping the air filtration pressure regulator within the scope of regulation, and by Pressure gauge 43 its output pressures of indication, by the thrust of giving of adjusting rod 37 adjustable springs 36, regulate described output pressure.This part content is known for the person skilled in art.

Find out thus, the filtration that the utility model is created the air filtration regulator of protective mask device partly adopts felt to cross the double filtration device that filter core and emery wheel pipe are crossed filter core, makes the filtration to airborne oil content, moisture content, felt fuds fuddled and dust can reach satisfied effect.

Referring to Fig. 8, Fig. 8 is the left view of seeing from the left side of air filtration regulator shown in Figure 7, about on the air output channel of air filtration regulator, connect air flow rate adjustment valve 41 respectively, and be connected with flexible pipe 21 shown in Figure 6 by rotary valve or cock 42 respectively, and constantly provide pure air to the air bag mouth mask.The advantage that flow control valve 41 is set like this is between air filtration adjusting device and air bag mouth mask a gas throttle device to be set, the pressure regulation partially-working that can guarantee the air filtration regulator moves calmly, and an air filtration regulator can roughly not produced for two people use simultaneously interfere with each other, flow control valve 41 can be regulated voluntarily.

Referring to Fig. 9, flow control valve has valve body 46, be connected by the screw thread that has on the one end and the air output channel of air filtration adjusting device, by forming the aperture that the adjusting screw(rod) 48 that is threaded is regulated flow control valves with valve body 46, by thread bush 47 with can guarantee air control valve itself at the sealing ring of the corresponding site setting of valve body and screw rod and the aeroseal at the position that is connected with the air filtration regulator, do not sew and do not produce air.

In addition, the hole of blocking with plug screw at ordinary times 44 being set on the flap of air filtration regulator, using the sterilization of doing the air filtration regulator, is exactly when the air filtration regulator uses for the first time or is interrupted use, need to carry out disinfection, guarantee safe and sanitary human body with edible alcohol one class solution.

In sum, when containing the poison gas that harmful to human is breathed, when the people of the site for labour work of dust or dust etc. wears this protective mask device, need make the air filtration regulator import compressed air in advance with about 0.03～0.04 megabar from standing air compression plant or system, regulate the pressure of air filtration regulator air output channel simultaneously, make its pressure keep being approximately about 0.02 megabar, and can be according to the size adjustment flow control valve of individual lung capacity, with so by regulating the aperture position of described conduit 4, the people who wears the air bag mouth mask is reached breathes comfortable natural degree.

The utility model is created the protective mask device and is especially adapted in the spraying such as oil or be coated with between multiple operation and other contains the poison gas that seriously is detrimental to health or the labor operation place of dust, for the people who works therebetween provides a kind of personal breathing safety device.

In addition, in above-mentioned each figure, the parts that identical numerical code expression is identical or same.

Claims (5)

1, a kind of protective mask device of protecting human body respiration to use; it is characterized in that described Mask devices comprises external form structure and a similar bladder-type mouth mask and the pure air source apparatus of health gauze mask, this air source device is connected by pipeline component and air bag mouth mask.

The ventilative structure of multiple throttling is set on the air bag mouth mask, the state of wearing at the air bag mouth mask, the ventilative structure of this throttling is positioned at the laterally neat position, nose slightly upper of human body face near the zone neat position, oral area slightly lower and the left and right sides thereof, and and human body face match and form the zone that the air feed capsule mask person safety that separates with the ambient gas environment that surrounded by air film that flows and gas jet is breathed, the pure air that forms this mobile air film and gas jet derives from above-mentioned pure air source apparatus, described pure air source apparatus comprises an air filtration regulator, the air flow rate adjustment valve that is communicated with the air outlet slit of a plurality of and described air filtration regulator, described air filtration regulator comprises an air filtration part, the housing of one an air pressure regulation part and an air filtration regulator partly, described housing partly has air and exports into passage, filtering import partly is connected with housing air input passage partly, filtering outlet partly and pressure regulation import partly is communicated with, pressure regulation partly outlet and the air-out of housing be communicated with, described air flow rate adjustment valve is communicated with the air-out of described housing respectively.The filtration of described air filtration regulator partly comprises:

Two ends have the screw rod of screw thread respectively, and an end has the sleeve of flange seat, in the middle of have the dished wheel of screw, the emery wheel pipe that a tubular felt filters core component filters core component.

Described sleeve is positioned at the centre position of case, the one end embeds on the case flap, one end of screw rod passes sleeve and the formation of case flap is threaded, its other end slides through at the bottom of the case, in case external application nut check and strain this screw rod, dished wheel is fixed in the position, middle slightly lower of this screw rod by the screw on it, emery wheel pipe filter core respectively by elastic buffer unit between sleeve and dished wheel, tubular felt filter core makes between the sleeve and dished wheel that is fixed in the emery wheel pipe filter core outside by fastening respectively.

2, Mask devices according to claim 1 is characterized in that described air bag mouth mask comprises by medical, slim, soft compactness material for making clothes to make lining that the centre accompanies the interlayer of medical foam poromeric material, by making the air bag that forms.

3, Mask devices according to claim 1 and 2, it is characterized in that the described ventilative structure of multiple throttling that on air bag mouth mask and human body face contact the lining of one side, is provided with that only comprises at the ventilative structure of the various throttlings that are provided with on the air bag mouth mask, on the another side of air bag mouth mask, pipeline connecting parts is set, and described pure air is delivered in the described air bag with cleaning conduit.

4, Mask devices according to claim 3 is characterized in that the ventilative structure of throttling of the described multiple pattern that only is provided with comprises on the lining of the one side of air bag mouth mask:

Intensive by some zigzag air gaps, the staggered vertical bar shape combined air void structure that forms continuously that is provided with along position, air bag mouth mask upper edge slightly lower,

Be symmetricly set on respectively near the longitudinal axis both sides of air bag mouth mask, and be positioned at last two groups of ventilative apertures of the position, slightly lower of described strip combined air void structure,

Be symmetricly set on respectively near the longitudinal axis both sides of air bag mouth mask, and the following two groups of ventilative apertures that are positioned at the position, slightly lower of described last two groups of ventilative aperture structures are constructed, only on this one side of described air bag mouth mask, and the interlayer that has double-layer fabric along the zone below described last two groups of ventilative aperture tectonic positions of air bag mouth mask transverse direction, the topped described two groups of ventilative apertures down of energy, and form by making, does not make on one side down of interlayer, make interlayer and ambient gas environmental communication, between described interlayer, by fastening topped described two slices watts of spinulose tree fern shape soft foil metals of two groups of ventilative apertures down are set respectively, and make the valley of corrugation direction down.

5, Mask devices according to claim 1 is characterized in that also having on the housing of described air filtration regulator sterilization and uses the hole, seals this sterilization with plug screw at ordinary times and uses the hole.

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