CN2614068Y - Protector (mouth mask) for shunting exhale and inhale - Google Patents

Abstract

The utility model relates to an exhalation and inhalation separating type protector (mask). The utility model enables the exhalation and the inhalation process to separate in the mask, which is different from an ordinary mask that the exhalation and the inhalation are carried out at the oronasal part of the mask; the utility model prevents the acceleration of the pollution of the mask alone by hot gas, humid gas, exhaust gas bacteria, nose saliva, etc. exhaled by a wearer, and the bacteria exhaled by a wearer can be exhausted out of the mask; thus, the utility model can effectively isolation sources of infection, and wearing the mask is comfortable and smooth. Besides filtering materials, the mask is main made of plastics and paper plastics and is formed by molding assembly at the time of production. The utility model which has high degree of mechanization and low manufacturing cost can satisfy the heavy demand of epidemic-stricken areas and disaster areas as soon as possible.

Description

Exhale, inhale shunting protector (mouth mask)

The utility model relates to a kind of " exhaling, inhale shunting protector (mouth mask) ".At present general citizen and the employed traditional various types of mouth masks of medical institution personnel are gone up by society, comprise the die pressing type active carbon mask, its expiration, air-breathingly do not have a split channel, finish near the mouth and nose by mouth mask.Like this, hot gas, moisture, waste gas, bacterium even the nose saliva etc. that the mouth mask wearer breathes out cause the pollution of mouth mask self very soon, if the cotton yarn mouth mask, its gas permeability die-offs, and causes the wearer to feel more unsmooth breath, and it is sultry to feel suffocated, like a hen on a hot girdle, be unfavorable for that the wearer works, is unfavorable for the sick body rehabilitation.In this case, even the die pressing type active carbon mask, the adsorption capacity of its active carbon also can weaken widely, makes its function impaired.Shunting protector (mouth mask) is exhaled, inhaled to the utility model " ", the utilization aerodynamic principle, allow expiration, breathing process in mouth mask (utensil), shunt, in the time of can not causing the wearer to exhale to the self-pollution of mouth mask (utensil), the thalline that the wearer breathes out can not be discharged to beyond this utensil yet, can isolate pollution sources effectively, increase the function and the security of mouth mask (utensil) effectively, and wear unobstructed in the process, comfortable, salubrious.

The purpose of this utility model is to provide a kind of breathing shunting mouth mask, with function and the security that improves this utensil, and comfortable, the unobstructed property when improving its use.

Now in conjunction with the enforcement of this utility model of marginal data.

Fig. 1 breathes shunting protector (to call utensil in the following text) mouth mask and facial hookup.Fig. 1 (1) is utensil and human body face contact portion onm framework, and framework is the plastics or the lightweight metal material of lightweight.Fig. 1 (2) is a nasal cavity, and Fig. 1 (3) is a lip, and Fig. 1 (4) is a lower jaw, and Fig. 1 (5) is utensil frenulum or hook.O is positioned at bridge of the nose middle-end, 2～3 centimeters n, m point to the volume outside the left and right sides wing of nose, mouthful line, the corners of the mouth.Before the nm limit can be enclosed within chin when wearing, also can be enclosed within the chin.Framework also can be made the external circle according to 3 formation of onm, sees Fig. 2 (13).

Fig. 2 is the schematic diagram of structure of utensil.Fig. 2 (1) is a separate cavities, and Fig. 2 (2) is an inlet chamber, and Fig. 2 (3) is a discharge chamber, and inlet chamber (2) and discharge chamber (3) are collectively referred to as respiratory cavity.The face district that separate cavities (1) is surrounded by the onm framework and the rear wall of respiratory cavity are formed.Between separate cavities (1) and inlet chamber (2) intake valve (4) is arranged, between separate cavities (1) and discharge chamber (3) air bleeding valve (5) is arranged, (6) are the inlet air filtration storehouses, the mid-filter material of letting slip in storehouse.(11) be the inlet chamber Hatch Opening, (7) are can put an amount of medium in the exhaust gas filter storehouse, and (12) are the discharge chamber Hatch Opening, (13) distortion framework schematic diagram, (14) inlet plenum, (15) exhaust chamber, the protection of (16) intake valve every.

Breathe shunting principle: in whole respiratory, separate cavities (1) and thoracic cavity are communicated with, and two chamber pressure are identical.Inlet chamber (2), discharge chamber (3) and atmospheric pressure communicate.When human body is exhaled, the thoracic cavity smaller volume, thoracic cavity pressure increases, and separate cavities (1) pressure also increases, and this pressure is far longer than the atmospheric pressure of inlet chamber (2), discharge chamber (3).When promptly exhaling, separate cavities (1) pressure is big, and expiration chamber pressure is little, and at this moment, air intake valve (4) is subjected to force direction to the right, is closed; Drain tap (5) is subjected to force direction also to the right, is opened, and by the gas of breathing out in the thoracic cavity, can only discharge from valve (5) through separate cavities, is discharged outside the utensil by discharge chamber Hatch Opening (12) after isolation cabin (7) inner filtration material filters.The thoracic cavity volume becomes big when human body is air-breathing, pressure reduces, and separate cavities (1) and thoracic cavity are communicated with, and pressure is identical (also to be reduced, be negative pressure), less than the atmospheric pressure in the respiratory cavity, intake valve this moment (4) is opened, and air bleeding valve (5) is closed, the air of the fresh dust-free sterile after filter in the inlet air filtration storehouse is through intake valve (4), enter the thoracic cavity by separate cavities (1), finish breathing process, breathe the shunting function thereby finish.

The thickness of separate cavities among Fig. 2 (1) is 0.8～1.0 centimetre from the lip meter to the respiratory cavity rear wall, and respiratory cavity thickness is 0.6～1.2 centimetre.Respiratory cavity dividing plate (8) is 0.6～1.2 millimeter.So the thickness of this utensil is comparatively both artistic and practical between 1.8～2.5 centimetres, there is special requirement to strengthen thickening according to the purposes design.

Some explanation: onm framework among Fig. 1, be flexible plastic, has certain deformation performance after stressed, make frame shape between △ and zero as Fig. 2 (13), degree of agreement with increase and face, the length of framework plastic strip large size is 15～18 centimetres, wide 0.6～0.8 centimetre (coincide parallel) with face, and height is 0.2～0.3 centimetre.Pressing has sealing strip Fig. 3 (2) under the framework, sealing strip can be used sponge, the velveteen material of good springiness, thick is 0.8～1 centimetre, locate sealing strip at wing of nose place and o, n, 3 of m and can suitably widen thickening Fig. 2 (10), so that utensil and facial tight connecting, but on framework on, om limit frenulum Fig. 1 (5) of connection device.

Fig. 3 is the inner front elevational schematic in Fig. 1 (1) separate cavities dead astern, and Fig. 3 (1) is the onm framework, and Fig. 3 (2) is sealing strip (an irregular shape), and (3) are division board position in the respiratory cavity, and (4) are air intake valves, (5) drain tap.

Fig. 4 is the front schematic view of this utensil, (1) inlet chamber Hatch Opening, and (2) discharge chamber Hatch Opening, (3) are the respiratory cavity profile, (4) are the circular or square platforms of this utensil respiratory cavity, to reduce the thickness of utensil.

In this utensil; the medium in Fig. 2 (6) inlet air filtration storehouse and Fig. 2 (7) exhaust gas filter storehouse; can be absorbent cotton wool, cotton yarn, nonwoven, active carbon (grain or its fiber cloth); shell matter; even material such as molecular sieve, and the shape of medium can be made into rectangle, square, cylindroid, cylindrical formed body and filtering cabin and coincide, and can closely embed or screw in the filtering cabin; as not having special requirement, the medium in exhaust gas filter storehouse (7) can be less relatively.

It is main body that this utensil is changed general mouth mask gauze commonly used, absorbent cotton, nonwoven, and use plastics, paper, papery, nonwoven instead is primary raw material,, absorbent cotton, gauze are only used on a small quantity as filtering material, less than 1/10 of former cotton yarn mouth mask, so can save a large amount of absorbent cotton gauzes.This utensil can be assembled by pressing mold, the mechanization degree height, and valve can be made of light material, and valve size can be 1～2 square centimeter, and shape is or circle or ellipse or rectangle.

The advantage of this utility model and enthusiasm:

1. this appliance applications is breathed part flow arrangement, has reduced the pollution of utensil self, has increased the function and the security of utensil, has prolonged the service time of utensil effectively, and is comfortable when wearing, unobstructed, salubrious.

2. in the exhaust storehouse in this utensil medium is also arranged, the carrier uses, and can the harmful bacteria that patient breathes out be collected in the filtering cabin, and can not pollute with the chamber other staff, can isolate the infection sources effectively, really embody the due function of benefiting other people as well as oneself of mouth mask.

3. this invention is the once reform of cotton yarn mouth mask, wherein main material be plastics, paper, if use cotton yarn, only make medium with a small amount of absorbent cotton, gauze, saved cotton yarn in a large number.

4. the forming mould of this utensil compacting assembling, the mechanization degree height, can greatly satisfy epidemic situation is arranged, the wilderness demand in the condition of a disaster zone.

5. the advertisement in the front of this utensil, pattern, color be design and printing arbitrarily.

6. if the surfacing of utensil with fire proofing material or fire resistant coating, strengthens filtering material in the turnover filtering cabin, this kind mouth mask also can be used for forest fire protection, the fire-fighting fire-proof mouth mask.

If the jack of oxygen nozzle is gone up in design among air inlet storehouse Fig. 2 (6), this utensil can directly be connected with oxygen machine or oxygen generator, and the epidemic victim puts on this mouth mask can not discharge thalline yet outside utensil in oxygen uptake.

Drawing is to as directed:

Fig. 1 mouth mask and facial contact figure

(1) onm framework

(2) nasal cavity

(3) lip

(4) lower jaw

(5) utensil frenulum

Fig. 2 schematic diagram of structure

(1) separate cavities

(2) inlet chamber

(3) discharge chamber

(4) intake valve

(5) air bleeding valve

(6) inlet air filtration storehouse

(7) exhaust gas filter storehouse

(8) respiratory cavity division board

(9) onm framework

(10) framework lower seal bar

(11) air inlet Hatch Opening

(12) discharge chamber Hatch Opening

(13) distortion framework schematic diagram

(14) inlet plenum

(15) exhaust chamber

(16) intake valve protection every

The inner positive diagrammatic sketch in Fig. 3 separate cavities dead astern

(1) onm framework

(2) framework lower seal bar

(3) respiratory cavity is every the version position

(4) respiratory cavity is every the version position

(6) air bleeding valve

Fig. 4 utensil front schematic view

(1) inlet chamber Hatch Opening

(2) discharge chamber Hatch Opening

(3) respiratory cavity profile

(4) respiratory cavity circle or square platform

Claims (4)

1. breathe the shunting protective mask and be characterised in that for one kind: when wearing this utensil and exhaling, its exhalation passages and air intake passage are shunted, and are to take their own roads.

2. the breathing shunting protective mask according to claim 1 is characterised in that: this protective device constitutes by breathing separate cavities Fig. 2 (1), inlet chamber Fig. 2 (2) and discharge chamber Fig. 2 (3), is provided with inlet air filtration storehouse Fig. 2 (6) and exhaust gas filter storehouse Fig. 2 (7) at respiratory cavity.

3. be characterised in that according to claim 1,2 breathing shunting protective mask: inlet chamber Fig. 2 (2) and discharge chamber Fig. 2 (3) constitute respiratory cavity, and between the inlet chamber of respiratory cavity and the discharge chamber be link to each other not connected.

4. be characterised in that according to claim 1,3 breathing shunting protective mask: inlet chamber Fig. 2 (2) and breathing have between separate cavities Fig. 2 (1) one from inlet chamber to breathing the unidirectional air intake valve Fig. 2 (4) that opens of separate cavities; Between breathing separate cavities and discharge chamber, have one from breathing separate cavities to the unidirectional drain tap Fig. 2 (5) that opens of discharge chamber.

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