CN112221030A

CN112221030A - Multifunctional protective mask

Info

Publication number: CN112221030A
Application number: CN202011066219.3A
Authority: CN
Inventors: 王涛; 张纪领; 魏文英; 祝志华; 贾建国; 吕哲; 程金斌; 付英杰; 魏世超; 张平
Original assignee: 718th Research Institute of CSIC
Current assignee: 718th Research Institute of CSIC
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-01-15

Abstract

The invention discloses a multifunctional protective mask, which can protect against the invasion of toxic gas in different scenes in a targeted manner by matching with different types of canister; in addition, when emergencies such as fire disaster occur, the oxygen generating tank is started, the purpose of isolated respiration protection can be achieved, and safe escape of personnel is facilitated; in addition, when the interface of face guard adopts buckle structure, also can assemble air steel bottle or compressed oxygen cylinder, realize positive pressure air respirator or compressed oxygen respirator's safeguard function. In conclusion, the mask is a multifunctional mask, is provided with different auxiliary articles, and can realize universality in various scenes.

Description

Multifunctional protective mask

Technical Field

The invention belongs to the technical field of personal respiratory protection, and particularly relates to a multifunctional protective mask.

Background

Respiratory protection articles can be classified into filtration type and isolation type according to the protection principle. Wherein, isolated formula includes positive pressure air respirator, positive pressure oxygen respirator and chemical oxygen fire control self-rescue respirator. Generally, the isolated type occupies a large volume, such as a chemical oxygen fire-fighting self-rescue respirator, which generates an air bag during the use process. The positive pressure air respirator and the positive pressure oxygen respirator are carried on the back for use, which causes certain inconvenience to users. The filtering gas mask purifies inhaled gas by using relevant principles such as adsorption, catalysis and the like, and protects the health of people in toxic and harmful environments. For example, the filtering type fire-fighting self-rescue respirator is used for people to escape, and can prevent the invasion of harmful gases such as carbon monoxide, hydrogen cyanide and the like, smoke and hot air flow. Because the wearing is convenient and fast, the volume is small, and the escape of personnel is facilitated, the device is equipped in each public place. The filtering gas mask can avoid the harm of various toxic gases to people according to the types of the equipped canister.

However, neither the filtering type fire self-rescue respirator nor the filtering type gas mask can be used under the condition that the oxygen concentration is lower than 17 percent, and the application scenes of the filtering type gas mask are greatly limited.

In summary, the existing personal respiratory protection articles are various in variety, the use scene of each article is single, and the selection problem is provided for the use of personnel in a complex environment.

Disclosure of Invention

In view of the above, the present invention is to provide a multifunctional protective mask, which can prevent people from being damaged by toxic and harmful gases in a toxic environment, and can ensure that people can escape safely in case of fire.

A multifunctional protective mask comprises a face mask (1), a canister (3) and an oxygen generating canister (2); the mask (1) is provided with a canister connector seat (15), an oxygen generating canister connector seat (14) and a breather valve switch (16); the plurality of the canister (3) are used for filtering different toxic gases;

when the mask (1) is only connected with the oxygen generating tank (2), the breather valve switch (16) is closed, and the gas exhaled by the person enters the oxygen generating tank (2); when the face mask (1) is only connected with the canister (3), the breather valve switch (16) is opened, and the gas exhaled by the person is discharged to the outside through the breather valve switch (16); when the oxygen generating tank (2) and the canister (3) are connected on the face mask (1), the breather valve switch (16) is closed,

preferably, the canister connector seat (15) is detachable and comprises a thread type and a buckle type; the joint seat (14) of the oxygen generating tank is detachable and comprises a thread type and a buckle type.

Preferably, when the snap-in type joint seat (14) of the oxygen generating tank is connected, the joint seat (14) of the oxygen generating tank is connected with an air steel cylinder or an oxygen steel cylinder.

Preferably, the oxygen generating tank (2) comprises an oxygen generating agent, a shell and an air storage bag.

Preferably, the oxygen generating agent is one or more of potassium superoxide, sodium superoxide, potassium peroxide and sodium peroxide.

Preferably, the canister (3) comprises a smoke filter layer, a catalyst and an adsorbent.

Preferably, the canister (3) is connected to both the canister connector (15) and the oxygen generating canister connector (14) when in a toxic environment.

Preferably, the face mask (1) is a full-face mask, a monocular window mask or a binocular window mask.

Further, the system also comprises a communicator (17).

Furthermore, a drinking function is integrated on the face mask (1).

The invention has the following beneficial effects:

the multifunctional protective mask can protect against the invasion of toxic gas in different scenes in a targeted manner by matching with different types of canister; in addition, when emergencies such as fire disaster occur, the oxygen generating tank is started, the purpose of isolated respiration protection can be achieved, and safe escape of personnel is facilitated; in addition, when the interface of face guard adopts buckle structure, also can assemble air steel bottle or compressed oxygen cylinder, realize positive pressure air respirator or compressed oxygen respirator's safeguard function. In conclusion, the mask is a multifunctional mask, is provided with different auxiliary articles, and can realize universality in various scenes.

Drawings

FIG. 1 is a schematic view of a multi-functional respirator of the present invention;

FIG. 2 is a schematic structural view of a multifunctional emergency protective mask;

FIG. 3 is a schematic diagram of a full-face protective mask;

FIGS. 4(a) and 4(b) are two versions of a canister;

FIG. 5 is a schematic view of an oxygen generating tank;

FIG. 6 is a schematic view of a binocular window mask;

FIGS. 7(a) and 7(b) are block diagrams of the threaded and snap-fit receptacles;

FIGS. 8(a) and 8(b) are front and side views, respectively, of an exhalation valve switch;

FIGS. 9(a) and 9(b) are diagrams of the effect of a respirator fitted with a single canister and fitted with a dual canister, respectively;

FIG. 10 is a diagram of the effect of a faceguard with an air reservoir;

FIG. 11 is an illustration of the effect of assembling the air cylinder when the interface of the mask base is a buckle;

FIG. 12 is an illustration of the effect of assembling the oxygen cylinder with the mask base interface being a snap;

wherein: 1-face mask, 2-oxygen generating tank, 3-canister, 4-head mask, 11-mask body, 12-fixed structure, 13-face window, 14-oxygen generating tank joint seat, 15-canister joint seat, 16-expiratory valve switch and 17-communicator.

Detailed Description

The invention is described in detail below by way of example with reference to the accompanying drawings.

In order to improve the universality of personal respiratory protection articles in various scenes, the multifunctional protective mask disclosed by the invention adopts a technical scheme of combining gas defense and oxygen supply. As shown in fig. 1, the working principle is as follows: when chemical toxicant attacks, the mask 1 is used for sealing the periphery of the face of a person, so that a respiratory system is isolated from the external toxicant exposure environment, and meanwhile, the external toxicant exposure air is purified and used as a respiratory source of the person by virtue of the filtering, adsorbing and catalyzing functions of the canister 3. When a fire disaster happens, the oxygen generating tank 2 is started, and the oxygen generating agent generates oxygen under the action of water and carbon dioxide exhaled by the person to be worn for the person to breathe, so that the person is effectively ensured to escape.

The main body of the protective mask consists of a face mask 1, a canister 3 and an oxygen generating tank 2.

The mask 1 may be one of a full face mask (full face mask, monocular mask, binocular mask) or a half face mask, and includes a mask body 11, a face window 13, a fixing structure 12, a canister connector 15, an oxygen generating canister connector 14, an exhalation valve switch 16, a head shield 4, a communicator 17, and the like. Meanwhile, the mask 1 can integrate a communication function and a drinking function.

The canister 3 is mounted on the face mask 1 and is composed of a smoke filter layer, a catalyst and a relevant adsorbent. The types of the catalyst and the adsorbent can be filled with different catalysts and adsorbents according to different gas protection types specified in the national standard GB2890 and the national military standard GJB 1155.

The oxygen generating tank 2 consists of an oxygen generating agent, a shell and an air storage bag. The sealed package is stored separately at ordinary times and is mounted on the mask 1 when in use. Meanwhile, the expiratory valve is closed by adjusting the expiratory valve switch 16, so that the expired gas passes through the oxygen generating tank 2, and the purpose of isolated respiratory protection is achieved.

Example 1

As shown in figure 2, the multifunctional emergency protective mask comprises a mask, a canister and an oxygen generating tank.

The mask shown in fig. 3 is a full face mask, and comprises a mask body 11, a face window 13, a fixing structure 12, a canister connector seat 15, a raw oxygen canister connector seat 14, an exhalation valve switch 16, a hood 4, a communicator 17 and the like.

Fig. 4(a) and (b) show two versions of the canister 3, corresponding to the standard screw and snap-on type of RD 40. The housing of the canister 3 may be made of metal or high-strength plastic.

As shown in figure 5, the oxygen generating tank 2 consists of an oxygen generating agent, a shell and an air storage bag. Wherein, the oxygen generating agent is a medicament capable of generating oxygen through chemical reaction, and can be one or more of potassium superoxide, sodium superoxide, potassium peroxide and sodium peroxide. The oxygen generating tank 2 is a coaxial air inlet and outlet structure. When the oxygen generating tank 2 is used, the exhalation valve switch 16 is closed at the same time, so that the gas exhaled by a person enters the oxygen generating tank 2 from the middle gas inlet through the conduit connected with the oral-nasal mask, the water vapor and the carbon dioxide in the exhaled gas react with the oxygen generating agent, the gas exists in the gas storage bag, and when the gas is inhaled, the gas rich in oxygen in the gas storage bag enters the mask 1 through the outer gas outlet to supply the breathing of the person.

Example 2

The mask 1 may also be of a binocular mask construction as shown in figure 6.

Example 3

Fig. 7 shows two types of the canister connector 15 and the oxygen generation canister connector 14 of the mask 1, which are screw type and snap type, respectively.

Example 4

Fig. 8 is a schematic structural diagram of the exhalation valve switch 16 on the mask 1. When the face mask 1 is fitted with a canister 3 in a toxic environment, the exhalation valve switch 16 is open to allow the exhaled air to be vented to the environment. When fire occurs and other emergency situations occur, the knob is screwed to press the exhalation valve plate so as to achieve the purpose of closing the exhalation valve.

Example 5

Fig. 9 shows the effect of wearing the mask in a toxic environment, either with a single canister or with a double canister.

Example 6

FIG. 10 is a diagram showing the effect of wearing a protective mask in an emergency such as a fire, in which the air bag is in a deployed state.

Example 7

Fig. 11 shows the effect of assembling the air cylinder when the interface of the base of the face mask 1 is a buckle. And can be used as a positive pressure air respirator.

Example 8

Fig. 12 shows the effect of assembling the oxygen cylinder when the interface of the mask base is a buckle. In this case, it can be used as a compressed oxygen respirator.

In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional protective mask is characterized by comprising a mask (1), a canister (3) and an oxygen generating canister (2); the mask (1) is provided with a canister connector seat (15), an oxygen generating canister connector seat (14) and a breather valve switch (16); the plurality of the canister (3) are used for filtering different toxic gases;

when the mask (1) is only connected with the oxygen generating tank (2), the breather valve switch (16) is closed, and the gas exhaled by the person enters the oxygen generating tank (2); when the face mask (1) is only connected with the canister (3), the breather valve switch (16) is opened, and the gas exhaled by the person is discharged to the outside through the breather valve switch (16); when the face mask (1) is connected with the oxygen generating tank (2) and the canister (3), the breather valve switch (16) is closed.

2. A multifunctional respirator according to claim 1 wherein the canister connector holder (15) is removable, both threaded and snap-fit; the joint seat (14) of the oxygen generating tank is detachable and comprises a thread type and a buckle type.

3. The multifunctional respirator of claim 2 wherein the oxygen canister adapter (14) is adapted to be connected to either an air cylinder or an oxygen cylinder when the snap-in oxygen canister adapter (14) is attached.

4. A multifunctional respirator according to claim 1 wherein the oxygen generating canister (2) comprises an oxygen generating agent, a housing and an air reservoir.

5. A multifunctional respirator according to claim 4 wherein the oxygen generating agent is one or more of potassium superoxide, sodium superoxide, potassium peroxide and sodium peroxide.

6. A multifunctional respirator according to claim 1 wherein the canister (3) comprises a smoke filter, a catalyst and an adsorbent.

7. A multi-functional respirator according to claim 1 wherein the canister (3) is connected to both the canister connector (15) and the oxygen generating canister connector (14) when in a toxic environment.

8. A multifunctional protective mask according to claim 1, wherein the face mask (1) is a full face mask, a monocular window mask or a binocular window mask.

9. A multi-functional respirator according to claim 1 further comprising an intercom (17).

10. A multifunctional respirator according to claim 1, wherein the mask (1) incorporates a drinking function.