CN2149929Y

CN2149929Y - Poison-protective mouthpiece

Info

Publication number: CN2149929Y
Application number: CN 93236276
Authority: CN
Inventors: 李植晋
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-17
Filing date: 1993-02-17
Publication date: 1993-12-22
Anticipated expiration: 2003-02-17

Abstract

The utility model discloses a poison-protective mouthpiece, comprising a housing, a protective cover. A plastic net is fixed on the housing, filtering adsorption components are provided behind the plastic net, the housing has a respiratory valve, and the filtering adsorption components are fixed connection with the respiratory valve, the housing. The utility model has the advantages of good poison-protective effect and easy use. The utility model is suitable for the industrial and mining establishments, research and low concentration toxicity environments to protect.

Description

Poison-protective mouthpiece

The utility model relates to a kind of lifesaving appliance, specifically a kind of respiratory protection equipment with filter element.

Present anti-poison respirator generally adopts grain active carbon, make the mouth mask volume big, use inconvenience, and, can not repeatedly use repeatedly because the adsorption rate of grain active carbon is slow, the gas defence poor effect.

Existing anti-poison respirator does not have sterilizing function, very easily communicate illness.

The purpose of this utility model is to provide the anti-poison respirator that a kind of gas defence is effective, can repeatedly use repeatedly.

Technical solution of the present utility model is:

A kind of anti-poison respirator has shell, protecting cover, and the difference of itself and prior art is: be fixed with plastic wire on case, the filtration absorbent module is equipped with in the plastic wire back, and breather valve is housed on the case, filters absorbent module and fixedlys connected with breather valve, case.

In the back of filtering absorbent module nonwoven or other suitable materials (routine gauze etc.) can be housed, also can not adorn any material.Activated carbon fiber adsorption layer and sterilizing cloth that the filtration absorbent module is made by fibrous filter layer, active carbon fiber felt or silk, bundle, net are formed, and can adopt the heat bonding technology or make an independently assembly with additive method.The diaphragm that breather valve is made by breathing valve seat, breathing valve bonnet, rubber or other suitable materials constitutes, and diaphragm is fixed on to be breathed on the valve seat, and the breathing valve seat is fixed on the breathing valve bonnet by the hole that the wedge-shaped projection on it is passed on the breather valve.Has helicitic texture in the breathing valve seat of breather valve, the breathing valve bonnet, can tighten fixing with filtering absorbent module, the periphery that filters absorbent module can be fixedlyed connected with case with velcro or other suitable materials, and can be clipped in below the protecting cover, also can not be clipped in below the protecting cover, can certainly adopt additive method will filter absorbent module and fix.

After activated carbon fiber adsorption layer absorption is saturated, can take off easily absorbent module with it the insulation of the baking oven about 120 ℃ about 15 minutes or in boiling water, boil about 30 minutes and can recover adsorption capacity fully, can repeatedly use repeatedly.

The utility model volume is little, easy to use, and gas defence is effective, can repeatedly use repeatedly, infection can kill bacteria wards off disease.

The utility model when breath, is directly discharged gas by breather valve owing to adopted breather valve, without filtering absorbent module, makes and breathes the service time of feeling easily and can prolonging mouth mask.

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is the profile of a kind of gas mask of the present utility model.

Fig. 2 is the front elevation of a kind of gas mask of the present utility model.

Fig. 3 is the breather valve drawing in side sectional elevation of a kind of gas mask of the present utility model.

A kind of gas mask, be fixed with plastic wire 10 on the case 1 that soft non-toxic material is made, the filtration absorbent module that is bonded into by the heat bonding technology by fibrous filter layer 2, activated carbon fiber adsorption layer 3 and sterilizing cloth 4 is equipped with in plastic wire 10 back, and activated carbon fiber adsorption layer 3 is to be made by active carbon fiber felt.The breather valve of being made up of the diaphragm 6 of breathing valve bonnet 7, breathing valve seat 5, rubber is made is housed on the case 1, and the hole that the diaphragm of breather valve passes on the breathing valve seat by wedge-shaped projection it on is fixed on the breathing valve seat.Nonwoven 8 is close to filtration absorbent module back.Filter absorbent module and rely on and breathe in valve seat 5 and the breathing valve bonnet 7 screw thread and fixedly connected with breather valve, the surrounding continues to use velcro or other suitable materials are fixed on the case 1, and be clipped in protecting cover 9 below, to guarantee its sealing.The profile of case 1 is made the shape that conforms to people's face, feels comfortable when guaranteeing to wear, and assurance and face fit tightly, and can avoid when breathing the peripheral leakage air from mouth mask.Periphery at case 1 is fixedly connected with tight locking button 11, has the profile of tooth press box on the tight locking button 11, connects elastic cord 12 or bandage or other suitable belts on the tight locking button 11.

The course of work of the present utility model is as follows:

After mouth mask was worn, when air-breathing, air entered the airborne floating thing of fibrous filter layer 2 filterings by the plastic wire 10 that is fixed on case 1, enter activated carbon fiber adsorption layer 3 then, by the sterilizing cloth sterilization, last, the air of cleaning enters people's respiratory tract through nonwoven 8 again.

During expiration, the air-flow of exhalation makes and is fixed on diaphragm 6 unlatchings of breathing on the valve seat 5, and the gas of exhalation is directly discharged from breather valve.

Claims

1, a kind of anti-poison respirator has case, protecting cover, it is characterized in that: be fixed with plastic wire on case, the filtration absorbent module is equipped with in the plastic wire back, and breather valve is housed on the case, filters absorbent module and fixedlys connected with breather valve, case.

2, anti-poison respirator according to claim 1 is characterized in that: filter the absorbent module back nonwoven is housed.

3, anti-poison respirator according to claim 1 and 2 is characterized in that: filter absorbent module and be made up of fibrous filter layer, activated carbon fiber adsorption layer and sterilizing cloth.

4, anti-poison respirator according to claim 1, it is characterized in that: breather valve is made of breathing valve seat, breathing valve bonnet, diaphragm, breathe valve seat and be fixed on the breathing valve bonnet, pass the hole of breathing on the valve seat, breathe on the valve seat and be fixed in by the wedge-shaped projection on it.

5, according to claim 1 or 4 described anti-poison respirators, it is characterized in that: have screw thread in the breathing valve seat of breather valve, the breathing valve bonnet, to filter absorbent module and tighten fixingly, the periphery that filters absorbent module is fixedlyed connected with case with velcro, and is clipped in below the protecting cover.