CN2455276Y

CN2455276Y - Improved smokeproof mask

Info

Publication number: CN2455276Y
Application number: CN 00262604
Authority: CN
Inventors: 徐文谦
Original assignee: XUANXIN INDUSTRIAL Co Ltd
Current assignee: XUANXIN INDUSTRIAL Co Ltd
Priority date: 2000-11-06
Filing date: 2000-11-06
Publication date: 2001-10-24
Anticipated expiration: 2010-11-06

Abstract

The utility model relates to an improved smokeproof mask which is sheathing head baggy and comprises a high temperature resistant transparent film mask body, a respiratory filtration piece which is arranged on one surface of the mask body and can be used for filtering high-heat toxic gas and burning particulate, and a gas chamber film which is connected with the filtration piece and is provided with a respiratory mouth device to form a gas exchange space between the film and the filtration piece. The lower part of the mask body is provided with an elastic fireproof film. An opening on the mask body is used for sheathing for a user. Respiratory gas enters the exchange space from the respiratory mouth device. Suction and pressure are concentrated in the exchange space. The gas quantity and the exchange speed of unit time can be increased for keeping smooth respiration. The inner part of the improved smokeproof mask can not be blurred because of water vapor in the respiration. The line of sight can not be unclear to affect the safety of escape.

Description

The modified Gauze mask for prevention of smoke irritating

The utility model relates to a kind of modified Gauze mask for prevention of smoke irritating, is specially a kind of high hot poisonous gas that filters, the foldable at ordinary times Gauze mask for prevention of smoke irritating of depositing when taking place in order to fire for people's life-saving.

Fire often takes place, the annual life that all seizes many people's preciousnesses.Show that according to investigation the hot gas that most of people often have toxicity in by the scene of a fire because have little time to escape in the scene of fire is choked to death.In view of this a fatal factor; there is manufacturer to develop the escape safety eyewear that Smoke prevention is choked; it is to adopt high heat-proof fire prevention material with protection head safety; and can filter toxicity air and particulate; the breathing that keeps the survivor is to wait for rescue; increase the chance of surviving, another safety guarantee of escape from fire is provided.Yet existing Gauze mask for prevention of smoke irritating needs to improve in last some important disadvantages that still have.

With reference to figure 6, traditional Gauze mask for prevention of smoke irritating is a pullover type bag shape Gauze mask for prevention of smoke irritating, includes a cover body 50, a filter 60 and an elastic fireproof film 70.Cover body 50 is the main body of face shield, and material is the high temperature-resistant polymer transparent membrane, and the one side of cover body 50 is in establishing filter 60 with respect to user's mouth and nose place.Filter 60 is made up of materials such as the adhesive-bonded fabric of multilayer, active carbon adsorption material, fire proofing firbre cloth, and it can filter the gas of high heat and tool toxicity.Cover body 50 belows are the elastic fireproof film 60 of tool one opening 71, and the user can strut opening 71 so that cover body 50 is set in head, then touch neck with elastic fireproof film 70 and prevent that smog from entering in the face shield.

Fig. 7 illustrates the user mode of traditional Gauze mask for prevention of smoke irritating, therefrom can understand its shortcoming:

1. owing in the face shield unnecessary space is arranged, and filter can't effectively be pressed close to nose and mouth, therefore when air-breathing, can cause the flat of face shield to contract, and air is difficult for being bigger than filter disc 60 by impedance and enters in the face shield, simultaneously because of human body when air-breathing formed negative pressure be scattered in the cover body, the suction that puts on unit are on the filter 60 disperses, and speed that air filtration sucks in the unit interval and amount all can reduce, and influence utilization benefit.

2. when exhaling, breath fills in the whole face shield, there is the pressure of 60 unit ares on the filter same as described above to disperse, the gas that speed that air filtration is discharged in unit interval and amount all can reduce is discharged the not good shortcoming of efficient, and form the user and breathe out that the gas that sucks is most to be remaining air in the cover body, cause the interior gas concentration lwevel of cover body to accumulate rapidly, allow the user that the danger of stupor is immediately arranged with respiration rate.

3. and owing to contain a large amount of aqueous vapors in the human body breath, therefore can cause transparent face mask inside to haze because of the steam agglomeration of condensing, make bad visibility, when the act of rescue, influence escape speed.

4. reduce to minimumly for the respiratory impedance that makes filter 60, in order to avoid outside air can't enter the air exchange air chamber, the amount of each filtering material layer is all limited, influence filter toxic effect fruit.

Main purpose of the present utility model is: provide a gas exchange efficiency good, breathe conveniently, and do not influence the Gauze mask for prevention of smoke irritating of escape sight line and safety.

The technical solution of the utility model is to provide a kind of modified Gauze mask for prevention of smoke irritating, and it is one pullover bag of shape face shield, and it comprises a cover body, and one is positioned at the filter on the cover body, and one is connected in the ostiolate elastic fireproof film in cover body below.Its characteristics are: there is an air chamber film filter inboard on the cover body, and air chamber film central authorities are provided with one and breathe mouthpart, and around its air chamber film with filter around driving fit, make air chamber film and filter between form one and exchange air chamber.

The characteristics of above-mentioned modified Gauze mask for prevention of smoke irritating also are: breathing mouthpart is all ostiolate tubular articles in two ends, and it touches mutually in an end of filter several tabs, and the other end is the seam for joining with lip then.

The characteristics of above-mentioned modified Gauze mask for prevention of smoke irritating also are: insert a supporter in the exchange air chamber.

The characteristics of above-mentioned modified Gauze mask for prevention of smoke irritating also are: the supporter of face shield is a stay pipe.

The characteristics of above-mentioned modified Gauze mask for prevention of smoke irritating also are: the supporter of face shield is the bubble cotton manufactured goods of tool hole.

Be not difficult to find out that by above explanation design of the present utility model has following advantage:

1. breathe the design of mouthpart and gas exchange air chamber, allow the air of breathing can not enter unnecessary space in the face shield, therefore when air-breathing, can not cause flat the contracting of face shield to be adjacent to, cause user's discomfort.

2. the suction scope is confined to exchange the filter in the air chamber when air-breathing, and the unit are suction on the filter is stronger, and air easily enters in the face shield by filter, keeps the smooth and easy of breathing.

3. when exhaling, breath only injects in the exchange air chamber air chamber internal pressure is increased, on the filter pressure of unit are with increasing, air is pushed the speed and the amount of filtering discharge because of pressure in the unit interval all can increase, and makes gas discharge efficient and strengthens.

4. because the gas of breathing only via the exchange air chamber, can't dissipate in the face shield, therefore can not cause transparent face mask inside to haze and cause bad visibility, the escape speed when influencing the act of rescue because of the steam agglomeration of condensing.

5. the gas of Hu Xiing is exhausted most via filter, effectively filtering pernicious gas and particulate.

6. the pressure of Hu Xiing concentrates on filter disc via the exchange air chamber, makes the big of the suffered force rate traditional design of filter disc unit are, thereby can the appropriate amount that increases sorbing material in the filter.

7. the space that keeps air chamber in the exchange air chamber with supporter makes the pressure of respiratory movement effectively be put on the comprehensive of filter.

Further specify technical characterictic of the present utility model and purpose below in conjunction with accompanying drawing.

Brief Description Of Drawings

Fig. 1 is a rearview of the present utility model;

Fig. 2 is the side sectional view that dissects along " 2-2 " line among Fig. 1 of the present utility model;

Fig. 3 is the just sight figure of the breathing mouthpart in the utility model;

Fig. 4 is the side sectional view that dissects along " 3-3 " line among Fig. 1 of the present utility model:

Fig. 5 is user mode figure of the present utility model;

Fig. 6 is the rearview of traditional Gauze mask for prevention of smoke irritating; And

Fig. 7 is the user mode figure of traditional Gauze mask for prevention of smoke irritating.

About structure of the present utility model, at first please referring to shown in Fig. 1 and 2.This modified Gauze mask for prevention of smoke irritating is one pullover bag of shape face shield, and it comprises that a cover body 10, cover body 10 one sides are provided with a filter 20, are linked to a breathing mouthpart 30 and an elastic fireproof film 40 on the air chamber film 31.

Wherein cover body 10 materials are the high temperature-resistant polymer transparent membrane, are engaged and pouch foldable reduced volume during collection by special adhesive tape.The one side of cover body 10 is established the suitable filter 20 of size, and filter 20 is made up of materials such as the adhesive-bonded fabric of multilayer, active carbon adsorption material, fire proofing firbre cloth, can filter the particulate and the toxic gas of high temperature.Cover body 10 belows are the elastic fireproof film 40 of tool one opening.Strut opening 41 head is inserted in cover body 10 inside for the user, then elastic fireproof film 40 touch neck and prevents that smog from entering in the face shield.

The above-mentioned part of the utility model is all the equipment of fire-proof smoke-proof with the material of traditional Gauze mask for prevention of smoke irritating, so its manufacturing technology and material are not repeated them here.

See also Fig. 2 again, after characteristics of the present utility model are breathing mouthpart 30 closely linked air chamber film 31 central authorities, with driving fits around the air chamber film 31 around filter 20, make air chamber film 31 and filter 20 form an air exchange air chamber 32, and respectively insert a stay pipe 25 in the both sides of exchange air chamber 32 and will exchange air chamber 32 and strut, be beneficial to the exchange of breathe air.

Then consult Fig. 3, breathing mouthpart 30 is all ostiolate cylindrical body in both sides, its end leading edge that links air chamber film 31 has several tabs 33, is used for avoiding breathing mouthpart 30 and too fits tightly with filter 20, and its other end is the seam 34 for being harmonious with lip then.

See Fig. 4 again, when using the utility model, the user carries out respiratory movement by oral area.When air-breathing, though shrink in exchange air chamber 32 spaces because of there being 25 of stay pipes to overhang the part space, therefore air chamber film 31 is unlikely to fully and filter 20 absorption bondings, can supply the air filtration inspiration, add that exchange air chamber 32 volumes are little, the suction scope is confined to exchange the filter 20 in the air chamber 32, unit are suction on the filter 20 is stronger, so outside air can quicken to enter in the face shield for giving enough air.

When exhaling, scope venting one's pent-up feelings also is confined to exchange in the air chamber 32, and little and breath is full of in it because of exchange air chamber 32 volumes, and exchange air chamber 32 pressure are increased, compressive load per unit area on the filter 20 is stronger, and the waste gas of therefore breathing out can shift out OFP fast.In addition, other space to cover body 10 inside of overflowing because breath can't loose hazes transparent cover 10 so that influences the problem of sight line so do not have because of aqueous vapor.

In addition, the stay pipes 25 in the exchange air chamber 32 also can adopt different supporters, and for example the bubble silk floss of macroscopic void is knitted sheet, and it is inserted among the exchange air chamber 32.When the user is air-breathing air passed through filter 20 enter the exchange air chamber 32, so foam sponge sheet passes through because of hole helps air greatly, and the thickness of foam sponge sheet itself enough struts exchange air chamber 32, therefore do not have filter 20 and the air chamber film 31 flat problems that contract and bind, and air also can pass through smoothly when exhaling.

Claims

1. modified Gauze mask for prevention of smoke irritating, it is one pullover bag of shape face shield, it comprises that the filter and that a cover body, is positioned on the cover body is connected in the ostiolate elastic fireproof film in cover body below, is characterized in that:

There is an air chamber film filter inboard on the cover body, and air chamber film central authorities are provided with one and breathe mouthpart, and around its air chamber film with filter around driving fit, make air chamber film and filter between form one and exchange air chamber.

2. according to the modified Gauze mask for prevention of smoke irritating of claim 1, it is characterized in that: breathing mouthpart is all ostiolate tubular articles in two ends, and it touches mutually in an end of filter several tabs, and the other end is the seam for joining with lip then.

3. according to the modified Gauze mask for prevention of smoke irritating of claim 1, it is characterized in that: insert a supporter in the exchange air chamber.

4. according to the modified Gauze mask for prevention of smoke irritating of claim 3, it is characterized in that: the supporter of face shield is a stay pipe.

5. according to the modified Gauze mask for prevention of smoke irritating of claim 3, it is characterized in that: the supporter of face shield is the bubble cotton manufactured goods of tool hole.