CN2219142Y

CN2219142Y - Separated mask for preventing smoke and poisonous gas

Info

Publication number: CN2219142Y
Application number: CN 95243790
Authority: CN
Inventors: 杨万有
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-04-17
Filing date: 1995-04-17
Publication date: 1996-02-07
Anticipated expiration: 2005-04-17

Abstract

The utility model provides a separated mask for preventing smoke and poisonous gas. The utility model is composed of a respirator, a left air sucking tank, a right air sucking tank, an eyeshade, an air sucking pipe and a headband, wherein, the left and the right air sucking tanks have identical structures, and are communicated with and connected with the respirator via the air sucking pipe; the eyeshade is arranged above the respirator; the headband can wear and fix the respirator, the left and the right air sucking tanks and the eyeshade onto the head of a user. The utility model can filter off dust, multiple harmful gas and bacteria, has favorable gas tight and versatility, and particularly has practicability for the scene of fire.

Description

Separate type Smoke prevention breathing mask

Provided by the utility model is a kind of separate type Smoke prevention breathing mask, belongs to the lifesaving appliance field in human lives's needs.

Breathing mask in the prior art background has helmet-type, hood type, every filter formula etc., because the Smoke prevention gas defence performance and the mask itself of breathing mask should in light weightly, easy to carry and use be a pair of contradiction, the professional can't thoroughly address this problem at present, usually can only be according to different application scenarios, individual event ground solves application problem.As the De Lege profile tool of Germany, weight reaches 1.5 kilograms, and price is very expensive again; Though and for example China's patent 90203566.5 has solved the problem of costing an arm and a leg, because the apnea valve, active carbon directly contacts with breath, its gas defence effect is affected, and above-mentioned two technology all can not be prevented carbon monoxide.

The purpose of this utility model has been to overcome the defective that exists in the prior art background, has especially structurally adopted novel design, and this that has solved performance and weight preferably be to contradiction, and cheap, for this field provides comparatively ideal product.

Content of the present utility model mainly is to relate to a kind of separate type Smoke prevention breathing mask, adopt separate type at first in design, make breath and eyeshade isolate, and breath and air-breathing jar of isolation, the problem that aqueous vapor is obstructed the view has obtained solution, and the material (as ultra-fine fibre glass filter paper, drier, active carbon, hopcalite) that also makes the filtering type Smoke prevention gas defence of the left and right sides in air-breathing jar not reason makes moist and reduces its Smoke prevention gas defence effect.Secondly, adopt the silica gel sealing ring cover, improved air-tightness, and made the space in the mouth mask less, be difficult for gathering pernicious gas.Moreover the material of employing filtering type Smoke prevention gas defence, after air enters air-breathing jar, set ultra-fine fibre glass filter paper, desiccant layer and active carbon layer constituted first metafiltration cigarette filter poison layer, flue dust and multiple pernicious gas have been filtered, radioactive ash and bacterium, if also contain carbon monoxide in the air, set hopcalite layer is as second metafiltration poison layer, the carbon monoxide that will pass through changes into carbon dioxide, after so filtering, smokeless nontoxic air enters air suction valve by air intake duct, breathes out through human body then, discharges through the outlet valve of exhaling jar.Fixing at last headband adopts the degree of tightness belt, has improved versatility, especially demonstrates its practical value in the scene of fire.

Below with reference to accompanying drawing technical characterictic of the present utility model is described in detail;

Fig. 1 separate type Smoke prevention breathing mask structural representation front elevation

Figure cuts open in Fig. 2 separate type Smoke prevention breathing mask side office

As depicted in figs. 1 and 2, the utility model mainly is made of mouth mask 1, air-breathing jar 2 on a left side, right air-breathing jar 3, eyeshade 4, air intake duct 5 and headband 6, air-breathing jar of 2,3 structures in the left and right sides are identical, communicate with mouth mask 1 simultaneously and be connected by air intake duct 5, mouth mask 1 top is an eyeshade 4, headband 6 can be made with elastic cord, mouth mask 1, air-breathing jar 2 on a left side, right air-breathing jar 3, eyeshade 4 are worn over and are fixed on user's head, mouth mask 1 edge is provided with silica gel sealing ring cover 10, be filled with air in the silica gel sealing ring cover 10, eyeshade 4 and mouth mask 1 are separated, both and the external world are separated.Be provided with the jar 7 of exhaling in the mouth mask 1, be provided with expiration check valve 8 in the jar 7 of exhaling, the top of the expiration jar 7 in the mouth mask 1 also is provided with inlet plenum 11, and air inlet pipe 5 communicates with inlet plenum 11 and links to each other, and is provided with air-breathing check valve 9 in the inlet plenum 11.Establish silica gel jar 17 respectively in left and right air-

breathing jar

2,3, its left end is provided with ventilation aluminium sheet 18, ventilation aluminium sheet 18 further is connected with the other end of air inlet pipe 5, silica gel jar 17 right-hand members are provided with air inlet guiding aluminium sheet 16, the air inlet place of air inlet guiding aluminium sheet 16 is provided with ultra-fine fibre glass filter paper 12, ultra-fine fibre glass filter paper 12 is made plurality of tooth-shaped, in order to enlarge filter area.By the air admission hole on this layer filter paper 12 and the air inlet guiding aluminium sheet 16, be respectively desiccant layer 13, active carbon layer 14 and hopcalite layer 15.

The utlity model has good practical value, novel structure is the good product in the breathing mask lifesaving field.Its main performance indication is as follows:

Claims

1, a kind of separate type Smoke prevention breathing mask, mainly constitute by mouth mask (1), eyeshade (4) and headband (6), it is characterized in that also comprising a left side air-breathing jar of (2), right air-breathing jar of (3) and air intake duct (5), left and right air-breathing jar (2), (3) structure are identical, they communicate with mouth mask (1) by air intake duct (5) and are connected, mouth mask (1) top is eyeshade (4), and headband (6) can be worn over mouth mask (1), a left side air-breathing jar of (2), right air-breathing jar of (3), eyeshade (4) and be fixed on user's head.

2, this separate type Smoke prevention breathing mask according to claim 1, its feature also is to be provided with in the mouth mask (1) exhale jar (7), expiration is provided with expiration check valve (8) in jar (7), the top of expiration jar (7) also is provided with inlet plenum (11) in the mouth mask (1), air inlet pipe (5) communicates with inlet plenum (11) and is connected, and is provided with air-breathing check valve (9) in the inlet plenum (11).

3, this separate type Smoke prevention breathing mask according to claim 1, its feature also is a left side, right air-breathing jar (2), (3) all be respectively equipped with silica gel jar (17) in, its left end is equipped with ventilation aluminium sheet (18), ventilation aluminium sheet (18) further communicates with an end of air inlet pipe (5) and is connected, the right-hand member of silica gel jar (17) is equipped with air inlet guiding aluminium sheet (16), the air inlet place of air inlet guiding aluminium sheet (16) is provided with ultra-fine fibre glass filter paper (12), is respectively desiccant layer (13) by the lead air admission hole of aluminium sheet (16) of this layer ultra-fine fibre glass filter paper (12) and air inlet, active carbon layer (14) and hopcalite layer (15).

4, according to claim 1,2 described this separate type Smoke prevention breathing masks, its feature is that also mouth mask (1) edge is provided with silica gel sealing ring cover (10), and the silica gel sealing ring cover is filled with air in (10), and eyeshade (4) and mouth mask (1) are separated.

5, according to claim 1,3 described this separate type Smoke prevention breathing masks, its feature is that also ultra-fine fibre glass filter paper (12) makes plurality of tooth-shaped.