JPS6021100Y2 - smoke gas mask - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] The present invention relates to a smoke-proof gas mask used in the event of a fire disaster that generates toxic gas. Regarding the anti-oxidation protective cover.

[Technical background of the invention]

Recently, the precious metal catalyst used in this type of smoke and gas mask has the function of oxidizing over time and gradually reducing carbon monoxide to carbon dioxide when left in the air. was found to decrease.

On the other hand, this type of smoke and gas mask that has already been proposed is
The mask body is equipped with an intake valve and an exhaust valve, and when the intake valve opens, the exhaust valve closes to breathe while cleaning the outside air.On the other hand, when the intake valve closes, the exhaust valve closes and the exhaust valve closes. The valve is opened to allow the exhaled breath to be exhausted.

That is, FIGS. 1 and 2 show smoke and gas masks that have already been proposed, and reference numeral 1 designates a flexible mask body, and this mask body 1 is made of a synthetic resin material. Moreover, an opening 2 is formed on the front side of this mask body 1, and a face rest 3 is formed on the back side of the mask body 1 where this opening 2 is located. There is.

Further, an exhaust port 4 is attached to the lower part 1a of the mask body 1, and an exhaust valve 5 is provided on the lower surface of the outer side of the exhaust port 4.
is provided with pin 6 to prevent the drawer from falling.

Further, a protective cover 7 having an exhaust hole 7a is removably provided on the outside of the exhaust valve 5.
The exhaust hole 7a is configured to discharge exhaled breath (exhaust gas) from the mask body 1 to the outside of the device.

Furthermore, a plurality of hanging fittings 8 are attached to the outer side of the mask body 1 near the face rest portion 3, and each hanging fitting 8 has an attachment string 9 such as an elastic string attached thereto. It is provided through.

On the other hand, a cylindrical filtration container 11 having a large number of intake holes 10 is removably installed in the front opening 2 of the mask body 1. A mouth 12 is formed.

Further, an intake valve 13 is attached to the intake port 12 with a pin 14, and this intake valve 13 is connected to the exhaust valve 5.
When the intake valve 13 is opened, the exhaust valve 5 can be closed, and the exhaust valve 5 can be closed when the intake valve 13 is opened.

The filtration container 11 has a lid 1 equipped with an intake hole 10.
It is formed so that it can be divided into two parts, 1a and a container body 11b, and after assembly, the lid 11a and the container body 11b are integrally formed by gluing.

On the other hand, inside the filter container 11, nonwoven fabrics 15,
An electrostatic smoke material 16 such as an electrostatic fiber smoke material, an activated carbon fiber material 17, a thin sponge material 18, a noble metal catalyst 19, a thin sponge material 18, and a nonwoven fabric 15 are provided.

Therefore, in the event of a fire, when the above-mentioned smoke-proof gas mask is attached to the face with the attachment string 9, the gas accompanying the smoke is transferred from the intake hole 10 to the filtration device 11 due to the suction pressure during breathing.
The inflowing smoke and organic gas are completely adsorbed and filtered by the electrostatic smoke material 16 and the activated carbon fiber material 17.

This filtered gas containing carbon monoxide CO is reduced to carbon dioxide by the noble metal catalyst 19 to eliminate toxicity, and the intake valve 13 is opened to flow into the space 3a of the face rest 3 and be breathed. .

Thus, the exhaust gas from the exhaled breath exhausted from the trachea is discharged outside the device by opening the exhaust valve 5 at the same time as the intake valve 13 is closed.

[Problems with background technology]

However, if the precious metal catalyst filled in the filter container 11 of the smoke and gas mask mentioned above is left in the air, it will oxidize over time and its function as a catalyst will deteriorate, converting carbon monoxide into carbon dioxide. It becomes difficult to return efficiently.

On the other hand, it is desirable that the sealed protective cover be removed smoothly and without forgetting to do so in the event of a fire or when not in use.

[Purpose of invention]

The present invention was made in view of the above-mentioned circumstances, and prevents the oxidation of the precious metal catalyst filled in the filtration container over time to maintain the reducing function effectively and appropriately. To provide a smoke and gas mask which is designed to be able to be removed when in use without forgetting the protective cover.

[Summary of the idea]

In the present invention, a filtration container is provided at the opening of a flexible mask body equipped with a face rest, and an electrostatic filter material, an activated carbon fiber material, and a noble metal catalyst are arranged in this order in this filtration container. When not in use, airtight seal protective covers are attached to the front and rear of the filtration container.

[Example of idea]

Hereinafter, the present invention will be described with reference to an illustrated embodiment.

It should be noted that the present invention will be described with the same reference numerals attached to the same constituent members as in the above-described specific example.

In Figures 3 and 4, 1. Reference numeral 1 denotes a flexible mask body, and on the front side of this mask body 1,
An opening 2 is formed, and a face rest 3 is formed on the back surface of the mask main body 1 where the opening 2 is located.

Further, an exhaust port 4 is attached to the lower part 1a of the mask body 1, and an exhaust valve 5 is provided on the outside of the exhaust port 4 with a pin 6 to prevent it from falling. .

Furthermore, a protective cover 7 having an exhaust hole 7a is removably provided on the outside of the exhaust valve 5, and the exhaust valve 5 and the exhaust hole 1a collect exhaled breath from the mask body 1. It is designed to be released outside the vessel.

On the other hand, a filtration container 11 having a large number of intake holes 10 is removably provided in the front opening 2 of the mask body 1, and an intake port 12 is formed inside the filtration container. ing.

Further, an intake valve 13 is attached to this intake port 12 by a bottle 14, and this intake valve 13 can be closed as soon as the above-mentioned exhaust valve 5 is opened. When the exhaust valve 5 is opened, the exhaust valve 5 can be closed.

On the other hand, the filtration container 11 has a lid 1 equipped with an intake port 10.
1a and a container body 11b, both of which are integrally formed after assembly.

Furthermore, inside this filter container 11, there is an air intake hole 10 on the outside.
In order from the front part to the rear part of the inner wall, a nonwoven fabric 15, an electrostatic resin material 16 such as an electrostatic fiber resin material, an activated carbon fiber material 17, a sponge material 18, a noble metal catalyst 19,
A sponge material 18 and a nonwoven fabric 15 are provided.

On the other hand, a circular embankment 11c is formed on the outer periphery of the lid 11a of the filter container 11, and the circular embankment 11C has, for example, an airtight seal with aluminum foil 20b affixed to the inside of a rubber material 20a. A protective cover 20 is tightly attached to cover the intake hole 10.

Furthermore, a detachable piece 21 is attached to a part of this airtight seal protective cover 20, which also serves as a sensing piece that can be seen even in the dark.

Furthermore, a short cylindrical portion 11d is formed at the rear of the container body 11b of the filtration container 11 so as to protect the intake valve 13 from the outside. A bank 11e is provided.

Further, on this ring embankment 11e, for example, an airtight seal protective cover 2 is attached, for example, an aluminum foil 22b is attached to the inner side of a rubber material 22a.
2 is closely attached to cover the intake valve 13.

Furthermore, a part of this airtight seal protection cover 22 includes
A detachable piece 23 that also serves as a sensing piece that comes into contact with the face
is attached.

Therefore, when not in use, both airtight seal protective covers 20.
22 prevents oxidation of the precious metal catalyst 19 in the filter container 11, and on the other hand, when in use, it can be removed smoothly and without forgetting by pulling and removing the removal piece 21, which also serves as a sensing piece. It looks like this.

Furthermore, the embodiment shown in FIG. 5 is another embodiment of the present invention, in which detachable pieces 21 are provided at the front and rear ends of the filter container 11, which also serve as sensing pieces when not in use. ', 23', for example, each airtight seal protection cover 20' and 22' made of a thin aluminum plate (foil plate) is adhered with a removable adhesive, and the content is the same as the above-mentioned specific example. It is something that does.

[Effects of the invention] As described above, according to the invention, the filtration container 11 is provided in the opening 2 of the flexible mask body 1 equipped with the face rest 3,
An electrostatic smoke material 16, an activated carbon fiber material 17, and a noble metal catalyst 19 are arranged in this order in this filter container 11, and airtight seal protective covers 20. 22, it is possible not only to prevent the noble metal catalyst 19 from being oxidized, but also to effectively maintain its reducing function as a catalyst for a long period of time.

In particular, the present invention exhibits the function of a smoke-proof and gas-proof mask when a person in a hurry puts it on their face without removing the airtight seal protective cover 22 in an emergency such as a fire. Since this is not possible, the removable piece 23, which also serves as the sensing piece, may be brought into contact with, for example, the nose, cheek, fingertips, etc., giving a sense of discomfort, thereby causing the airtight seal protective cover 2
This device has excellent effects such as being able to sense that the device 2 has not been removed yet.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a smoke-proof gas mask that has already been proposed, FIG. 2 is a sectional view of the same as above, FIG. 3 is a sectional view of a smoke-proof gas mask according to the present invention, and FIG. 4 is a cross-sectional view of the smoke-proof gas mask according to the present invention. FIG. 5 is a partially enlarged cross-sectional view of an airtight seal protection cover used in the present invention, and is a view showing another embodiment of the present invention. 1...Mask body, 2...Opening, 3
...Face rest part, 11 ...Filtering container, 16
... Electrostatic smoke material, 17 ... Activated carbon fiber material, 19 ... Precious metal catalyst, 20 ...
・Airtight seal protection cover, 21...Removal piece,
22...Airtight seal protective cover, 23...
・Removal piece.

Claims (1)

[Scope of utility model registration request] A filtration container is provided in the opening of a flexible mask body equipped with a face rest, and an electrostatic smoke material, an activated carbon fiber material, and a precious metal catalyst are arranged in this order in the filtration container. A smoke and gas mask characterized by having airtight seal protection covers attached to the front and rear parts when not in use, and a detachable piece that also serves as a sensing piece attached to a part of each airtight seal protection cover.