CN2060678U

CN2060678U - Portable gas-masks

Info

Publication number: CN2060678U
Application number: CN 90203566
Authority: CN
Inventors: 李家骅; 郭坤敏
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-03-28
Filing date: 1990-03-28
Publication date: 1990-08-22

Abstract

The utility model relates to a portable gas mask with a filter type. The utility model is characterized in that the structure of the mask is novel; the mask comprises a helmet (1), an eye window (2), a mask element (3), and a head band (4), wherein, the helmet (1) is made by antigas cloth, and the helmet (1) is gastight and fire retardant. The eye window (2) can be folded together with the mask element (3), so the volume for packing and carrying is small. The s mask element (3) is formed by that a filtering element is integrated with the mask; the structure of reflected sides, the shapes, and the sizes of the mask element (3) can effectively guarantee the contact with various shapes of heads and faces of men, women, old people, and young people. The second contact frame is designed at a neck, which is helpful for the people worn glasses to use, and the rate of wearing suitably which is suitable for people with various shapes of the mouths and faces is efficaciously guaranteed.

Description

Portable gas-masks

The utility model belongs to common filtering face field.Be mainly used in personnel compact district fire prevention self-saving masks (escape mask) such as high-rise, underground, large ship, the industrial or agricultural staff is dustproof, gas defence, anti-agricultural chemicals, public security officer are anti-riot, scopes such as the civilian gas defence in city in wartime, (can not prevent carbon monoxide).

The design feature of existing common breathing mask is, it must have the good face shield cover body that is pressed into by rubber or plastic or other material of an air-tightness, cover body has driving fit frame, Y-bend block water cover or parts such as flow deflector, and apertures such as a window, communication, outlet valve, outlet valve, headband are arranged, cover body structure and die size require very high, are directly connected to the performance of mask.Structural requirements such as eye window, communication, breathing valve and seat are also very high, and need to be equipped with a strict canister or an element.Especially military mask requires higher, but its volume is big, and minimum is (200 * 200 * 100mm ³), the military 65 profile tools of China that weight is the lightest, also greater than one jin, a traditional unit of weight, the model of mask many (at least three) must screw up discipline during use, particularly costs an arm and a leg, and should not apply in town and country.

The purpose of this utility model is that at the deficiency of above-mentioned breathing mask technology, the spy provides a kind of light filter respirator, it is characterized in that the novel structure of mask.The head-shield (1) that this mask comprises is one airtight, can fire-retardant gas defence cloth make.Stitching or pressing have flexible eye window (2), filter element and mouth mask to form the mouth mask element (3) and the headband (4) of one on it.Its mutual alignment is as figure (1), shown in (2).Eye window (2) and mouth mask element (3) can be superimposed together, and form that to pack and carry volume little, in light weight and have a performance of common filtering face.

Major technique of the present utility model constitutes, the profile of mask is a kind of head-shield (1) made from air-locked gas defence, fire retardant, the filtering material of a window (2) and snout sealing and the mouth mask element (3) that rubber is pressed into are installed in the front of head-shield (1), the neck band of its headband and head-shield is combined as a whole, claim headband (4), when personnel wear earlier with mouth mask by to snout, catch the head-shield rear portion to be pulled through the crown to facial top then and draw to next to a rear again, wearing of mask tightly can being coincide is intact.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Fig. 1 is the front view of light filter respirator.

Fig. 2 is the side view of light filter respirator.

Fig. 3 is the mouth mask element front view of light filter respirator strip off head-shield.

Fig. 4 is the mouth mask component side view of light filter respirator strip off head-shield.

Fig. 5 is the mouth mask element partial sectional view of light filter respirator strip off head-shield.

As depicted in figs. 1 and 2, this light mask is mainly by head-shield (1), eye window (2), and mouth mask element (3), headband (4) is formed.

Head-shield (1) is made with air-locked gas defence, fire-retardant rubberized fabric, also can prevent fires the aluminium foil Compound Fabric of radiation proof heat by compound last layer.Its shape resembles a sack, and it has only two holes, and a hole is used to make or suppresses a window (2), makes the people be convenient to observe.The mouth of another Kong Xiangyi sack, its size are greater than (lower jaw--ear--crown) girth of the large size standard number of people, it wears conveniently mask, when personnel wear earlier with mouth mask by to snout, catch the head-shield rear portion to be pulled through the crown then to facial top, draw to next behind head, wearing of mask tightly can being coincide is intact again.People's women's head-ornaments portion and neck all can be protected like this.

Eye window (2) is positioned at the head-shield front corresponding to position of human eye, and it is that transparent, a flexible plastic material is made it and is shaped as down trapezoidal or oval.After wearing, personnel are used for observing.Can there be good protective action at its sealing position to eye at people's neck.It is characterized in that people, need not take off one's glasses and to put on mask easily and observe any age wearing spectacles.

Mouth mask element (3) is positioned at the head-shield front corresponding to people's snout position, (see Fig. 3,4,5), it mainly uses glass filter paper (5) and activated carbon filtration plate (6), make filter element, add foam sponge plate (7), metal otter board (8) is as backplate, in foam sponge plate the place ahead stack plastics backplates (10), the slit of the taper between them, guarantee that air passes through filter course smoothly and equably, the air draught direction as shown in Figure 4, single direction of arrow is inspiratory direction, the double-head arrow direction is the expiration direction.Backplate bottom (10) and head-shield is made or riveting built in together shown in figure one, two, it can prevent that when mask is worn rainwater from soaking element, in order to avoid increase inspiratory resistance.Its top is not sewed up or pressing with head-shield, make it to separate, when mask is packed or is carried, the upper eye window promptly can be superimposed together with mouth mask, eye window (2) radian and mouth mask element (3) radian are approximate, and head-shield also is soft, is superimposed together like this, form very little volume, can be greater than 200 * 150 * 100mm ³, like this to the armed policeman, people's militia and forest extinguishing personnel carry very favourable, and it will be more half as large than the military mask of 65 types of minimum.Mouth mask element (3) is provided with outlet valve commonly used (9) and reflexed driving fit frame (11), and reflexed driving fit frame (11) profile is by the design of Chinese's standard head model, and it is airtight to be suitable for all kinds of shapes of men and women, old and young.

Headband (4), make with flat rubber elastic cord, there are two, the one head is sewn to mouth mask element (3) upper lateral part, passing the band of head-shield (1) stumbles, link with mouth mask element (3) opposite side bottom headband adjustable ring around passing head-shield (1) in one week of neck, two are with in nape and intersect, so both can strain mouth mask element (3) makes it be sealed in snout, guaranteed the airtight of respiratory apparatus, make neck seal again, guarantee that eyes, ear, head-face skin and extraneous contamination air are isolated, make it not injured by poison gas.

Because of the mask configuration size design reasonable, so this light mask has following main feature:

1) the mask safe wearing is reliable: reflexed driving fit frame (11) profile is by the design of Chinese's standard head model, the structure of Turn up hem, can effectively ensure the driving fit of the various women's head-ornaments type of men and women, old and young, headband (4) has two, the one head is sewn to mouth mask element (3) upper lateral part, passes the band of head-shield (1) and stumbles, and links with mouth mask element (3) opposite side bottom headband adjustable ring around passing head-shield (1) in one week of neck, two are with in the nape intersection, so both can strain mouth mask element (3) and make it be sealed in mouth Nose, guaranteed the airtight of respiratory apparatus, make again neck seal, guarantee that eyes, ear, head-face skin and extraneous contamination air are isolated, make it not injured by poison gas, ensure that all kinds of women's head-ornaments type personnel's safe wearing is reliable, even head dummy is very little, or a lot of people of beard, swinging dangerous lifesaving or low concentration poison gas long duration protection, all can guarantee the index of air leakage factor requirement.

2) mask is worn conveniently: it only has a kind of model, and no matter men and women, old and young can both wear. When mask is worn, earlier mouth mask element (3) is pressed tight snout, catch head-shield (1) rear portion with another hand then, draw to facial top from folding state, surpass the crown and rearward draw, again to the bottom to neck, draw, namely form sealing, loosening as also having, adjust again lower headband and get final product, do not hinder like this people who wears glasses to wear, people's hair is also managed rearwards, can not drape over one's shoulders in front to obstruct the view.

3) the mask volume is little: it is made of the mouth mask element (3) of one filter element and mouth mask, eye window (2) and mouth mask element (3) can be superimposed together, add that head-shield (1) also is that rubberized fabric is made, event forms packing and carries volume very little, it will be more half as large than the military mask of 65 types of minimum, just like a big wallet, be placed on difficult behaviour of waist and realize, be a kind of self-defence mask.

4) mask very light in weight: because of rational in infrastructure, accessory is few, so very light in weight only about half jin, a traditional unit of weight (250 gram), has only half weight of 65 profile tools.

5) mask low price: the accessory of mask is few, mould is few, manufacturing process is simple, need not substantial equipment can produce, and price is the 1/4--1/5 of general mask.

6) mask wide accommodation: it has the function of common filtering face, and above-mentioned advantage is arranged again, and in wartime, its barrier propterty is suitable with military filtering face.So it is very suitable as the people's gas mask in wartime (personal protection equipment in wartime of each big and medium-sized cities, the whole nation, strategic area indispensability), because of its technology, mould simple.District in all parts of the country all can produce, and has solved the needs of whole people's protection.At ordinary times, the usefulness of saving oneself when it is applicable to the personnel of skyscraper, underground engineering or the intensive place of personnel (as subway, walddown, restaurant, movie theatre, dance hall, warehouse, large ship, aircraft, train etc.) fire escape.Calculate with the fire life insurance, only spend 1 fen of less than every day, have less and spend, the effect of high benefit, particularly low price easily is that general citizen accept, and it is worn conveniently, (250 gram) in light weight, volume is little, and is (being placed on waist just like a big wallet is difficult for behaving to realize it is a kind of self-defence mask), safe and reliable, be fit to People's Armed Police, forest fire prevention and control and people's militia and wear, the rescue personnel who also adapts to forest and circulation of air place uses when putting out a fire.Can supply industrial and mining enterprises, especially chemical plant, the nuclear power plant internal staff uses, and can use when the emergency evacuation for the outside resident in chemical plant, also can prevent agricultural chemicals usefulness for the peasant, and large-scale popularization will have very great society benefit and economic benefit.

Claims

1, a kind of light filter respirator, the profile that it is characterized in that mask is a kind of head-shield (1) made from air-locked gas defence, fire retardant, the filtering material of a window (2) and snout sealing and the mouth mask element (3) that rubber is pressed into are installed in the front of head-shield (1), and the neck band of its headband (4) and head-shield is combined as a whole.

2, device as claimed in claim 1, it is characterized in that mouth mask element (3), it is positive corresponding to people's snout position that it is positioned at head-shield (1), it mainly uses glass filter paper (5) and activated carbon filtration plate (6), make filter element, add foam sponge plate (7), metal otter board (8) is as backplate, at foam sponge plate (7) the place ahead stack plastics backplates (10), the slit that one taper is arranged between them, backplate bottom (10) and head-shield is made or riveting built in together, its top is not sewed up or pressing with head-shield, makes it to separate, and eye window radian and mouth mask element (3) radian are approximate, head-shield also is soft, and eye window (2) can be greater than 200 * 150 * 100mm with the volume that mouth mask element (3) is superimposed together ³, mouth mask element (3) is provided with outlet valve commonly used (9) and reflexed driving fit frame (11).Reflexed driving fit frame (11) profile is by the design of Chinese's standard head model.

3, device as claimed in claim 1 is characterized in that a window (2) is positioned at the head-shield front corresponding to position of human eye, and it is that transparent, a flexible plastic material is made, and it is shaped as down trapezoidal or oval, and its sealing position is at people's neck.

4, device as claimed in claim 1, it is characterized in that headband (4), make with flat rubber elastic cord, there are two, the one head is sewn to mouth mask element (3) upper lateral part, pass the band of head-shield (1) and stumble, link around passing head-shield (1) and mouth mask element (3) opposite side bottom headband adjustable ring in one week of neck, two are with in nape and intersect.