CN212395637U

CN212395637U - Micro-positive pressure self-suction filtering type escape respirator

Info

Publication number: CN212395637U
Application number: CN202021481554.5U
Authority: CN
Inventors: 张守政; 袁圣富
Original assignee: Shanghai Baoya Safety Equipment Co ltd
Current assignee: Shanghai Baoya Safety Equipment Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-01-26
Anticipated expiration: 2030-07-24

Abstract

The utility model relates to a respirator technical field is a pressure-fired is from inhaling filtration formula respirator of fleing particularly, including hood and oronasal mask, the hood front end be equipped with oronasal mask, its characterized in that: the gauze mask of mouthful be equipped with the canister on, the canister in be equipped with smoke filtering layer and active carbon canister layer, canister rear end is equipped with the fan, and the fan provides the pressure-fired wind-force, the hood front end, mouthful nose cup top are equipped with transparent window, mouthful nose cup below is equipped with expiratory valve, expiratory valve sets up in the hood is lower to put, its advantage lies in: the canister has an active carbon canister layer and a smoke filter layer, which can achieve double filtering effects; the fan can provide the pressure-fired wind-force, and the crowd who helps breathing inconveniently breathes is breathed in.

Description

Micro-positive pressure self-suction filtering type escape respirator

Technical Field

The utility model relates to a respirator technical field is a pressure-fired is from inhaling filtration formula respirator of fleing particularly.

Background

Along with the development of economy, the weight chemical industry in China is more and more, and once an accident happens due to the national condition that special population in China is dense and traffic is lagged behind, a lot of people often die on the way of evacuation. A typical "12.23" major blowout accident, such as 12 months and 23 days 2003, occurs in the northeast mine of sichuan, resulting in 243 deaths, with 65632 people being emergently evacuated. On-site investigation revealed that dead people were concentrated on an evacuated road, 700 meters away from the well head, while farmers who hide in the home tended to survive.

At present, various dustproof, smoke-proof and gas-proof masks and masks are provided in China, and self-suction type escape hoods are adopted, the negative pressure type escape hoods overcome the resistance of a filter element by breathing of a wearer, however, different crowds exist in the escape process, for example: infants, the elderly, and some patients with dyspnea, who often have difficulty breathing themselves. And the people can wear the self-suction negative pressure type escape hood, so that the people can breathe more urgently.

The existing escape respirator comprises the following patents: a portable escape mask, patent No.: 2019210359555, this patent includes the hood, big eye window, bungee and canister, and the hood is made by fire-retardant fever cotton cloth and forms, and the aluminium foil membrane is scribbled on fire-retardant fever cotton cloth's surface, and the surface mounting of hood has big eye window, and big eye window comprises transparent material, and the bottom of hood is provided with bungee, and bungee and fire-retardant fever cotton cloth are woven as an organic wholely, and the surface of hood is connected with canister, the utility model discloses open the plastic bottle that will be equipped with the face guard when dressing, open the folding face guard of fleing of the inside gently overlap overhead, aim at the nose mouth with canister and breathe, adjust the elastic cord and make facial laminating to do not make the face guard landing comfortable the time. When a fire disaster happens, the transparent eye cover has a large eye window, the visual angle of an escaper is useless for looking for a safe exit path in a single view, and then the escaper can quickly escape, and the transparent eye cover has the advantages of being light and handy, attractive, small in occupied space and simple to operate.

Just like the conventional self-suction negative pressure type respirator, the respirator only helps air filtration, but does not help the inspiration of people, so that the escape respirator which can be worn quickly, has small breathing resistance and wearing comfort and has good safety is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the not enough of prior art, provide a pressure-fired is from inhaling filtration formula respirator of fleing.

In order to realize above-mentioned purpose, design a pressure-fired is from inhaling filtration formula respirator of fleing, including hood and oronasal mask, the hood front end be equipped with oronasal mask, its characterized in that: the mouth-nose mask on be equipped with canister, canister in be equipped with smoke filtering layer and active carbon canister layer, canister rear end is equipped with the fan, and the fan provides pressure-fired wind-force, the hood front end, mouth-nose mask top are equipped with transparent window, mouth-nose mask below is equipped with the expiratory valve, the expiratory valve sets up in the hood lower hem.

Preferably, the upper side and the lower side of the oronasal mask are provided with clamps, the head cover is provided with a hole, and the oronasal mask is connected with the head cover in a matched mode through the clamps.

Preferably, the bottom of the head cover is provided with a neck sleeve, and the neck sleeve is made of elastic latex.

Preferably, the transparent window is welded on the hood, and the transparent window is made of transparent PVC material.

Preferably, the rear end of the oronasal mask is connected with one end of an elastic tightening belt, and the other end of the elastic tightening belt is connected with the mask.

Preferably, the hood is made of a flexible TPU composite material.

Preferably, the oronasal mask is made of EPDM rubber.

Compared with the prior art, the utility model, its advantage lies in:

1. the canister has an active carbon canister layer and a smoke filter layer, which can achieve double filtering effects;

2. the fan can provide micro-positive pressure wind power to help people with dyspnea to inhale;

3. the exhalation valve can make the gas that human body expired in time discharge.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

in the figure: 1. the respirator comprises a hood 2, a transparent window 3, a mouth-nose mask 4, a canister 41, a smoke filter layer 42, an activated carbon canister layer 5, an exhalation valve 6, a neck sleeve 7, an elastic tightening belt 8, a fan 9, a button cell 10, a switch 11 and a hoop.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and the structure and principle of the present invention will be clear to those skilled in the art. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to the figure 1, the utility model provides a from inhaling filtration formula respirator of fleing, including hood, oronasal mask and expiratory valve, the hood front end be equipped with oronasal mask, both ends are equipped with the clamp about the oronasal mask, open porosely on the hood, in the clamp patchhole for oronasal mask is connected with the hood, the hood front end, oronasal mask's top are equipped with transparent window, and transparent window is in human binocular scope, and transparent window passes through hot melt technology and welds on the hood. The utility model discloses a mouth nose cup, filter jar, fan, active carbon filter canister, mouth nose cup below is equipped with expiratory valve, and the expiratory valve passes through the interference card and covers on the mouth nose cup, the mouth nose cup includes canister and fan, is equipped with smoke filter layer and active carbon filter canister in the canister, can play double-deck filter effect, and the rear end of canister is equipped with the fan, and the fan provides power through button cell, and the fan upper end is equipped with the switch for opening and close of control fan, the fan can provide pressure-fired wind-force. The bottom of hood still be equipped with the neck cover, the neck cover is connected on the hood through sewing and seal strip. The nose cap on still be equipped with elasticity tightening belt, elasticity tightening belt one end is fixed on the nose cap, the other end is fixed on the oronasal mask, tightening belt makes the oronasal mask laminate human oronasal cavity.

The utility model discloses a from inhaling the preparation material of each part of filtration formula respirator of fleing as follows:

the hood is made of soft TPU composite material; the transparent window is made of transparent PVC material; the oral-nasal mask is made of EPDM rubber; the neck cover is made of elastic latex.

During the use, press the switch with the hand point, open the fan, then the user struts the hole on the neck cover with both hands, passes the head, and the neck cover is through the elasticity of latex material final and human neck driving fit, adjusts the oronasal mask and makes it and human oronasal driving fit, and the elasticity of material is passed through in the area of tightening and is taut the laminating of oronasal mask, wears to accomplish and flees.

The air flow enters the fan after filtering poison gas through the poison filtering tank, and the fan blows the filtered gas into the mouth-nose mask under micro-positive pressure to supply air to a human body for breathing; the gas exhaled by the human body is exhausted through the exhalation valve, and the exhalation valve is arranged in the lower hem of the hood, so that liquid can be effectively prevented from splashing into the exhalation valve, and toxic liquid is prevented from being inhaled into the human body to be poisoned due to the fact that the splashed liquid flows into the nose mask.

Claims

1. The utility model provides a pressure-fired is from inhaling filtration formula respirator of fleing, includes hood and oronasal mask, the hood front end be equipped with oronasal mask, its characterized in that: the mouth-nose mask on be equipped with canister, canister in be equipped with smoke filtering layer and active carbon canister layer, canister rear end is equipped with the fan, and the fan provides pressure-fired wind-force, the hood front end, mouth-nose mask top are equipped with transparent window, mouth-nose mask below is equipped with the expiratory valve, the expiratory valve sets up in the hood lower hem.

2. The self-priming filtering escape respirator of claim 1, wherein: the upper and lower both sides of oronasal mask be equipped with the clamp, the hood on open porosely, oronasal mask passes through the clamp and is connected with the hood cooperation.

3. The self-priming filtering escape respirator of claim 1, wherein: the bottom of the head cover is provided with a neck cover, and the neck cover is made of elastic latex.

4. The self-priming filtering escape respirator of claim 1, wherein: the transparent window is welded on the hood and made of transparent PVC materials.

5. The self-priming filtering escape respirator of claim 1, wherein: the back end of the oral-nasal mask is connected with one end of an elastic tightening belt, and the other end of the elastic tightening belt is connected with the mask.

6. The self-priming filtering escape respirator of claim 1, wherein: the hood is made of flexible TPU composite materials.

7. The self-priming filtering escape respirator of claim 1, wherein: the mouth-nose mask is made of EPDM rubber.