JP3245621B2 - Emergency respirator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency respirator used in response to generation of toxic gas or lack of oxygen during a fire. INDUSTRIAL APPLICABILITY The respiratory apparatus according to the present invention can be used not only when a fire occurs, but also when climbing to a high mountain, in sewerage work, or at an emergency at a mine site.

[0002]

2. Description of the Related Art Conventionally, this type of emergency breathing apparatus fills a cylinder with compressed air or oxygen, and inhales after reducing the pressure by a regulator during use. In this case, many exhaled breaths are discharged as they are.

[0003] However, the conventional emergency respiratory apparatus having the above-mentioned configuration has a disadvantage that it is heavy because it is equipped with a cylinder or the like, and that the one that can breathe for a long time becomes very large and cannot be carried.

Accordingly, the present applicant has previously filed Japanese Patent Application No. 2-41.
No. 8535 proposes an emergency respirator of the type that creates oxygen when used.

This emergency respirator includes an outer container having a bellows portion and also serving as a reaction chamber and containing a medicine, an inner container mounted in the outer container and containing another liquid medicine, and contacting the two medicines with oxygen. It consists of a plug provided between the outer container and the inner container to generate air, and a respiratory mask connected to the outer container, which is convenient and highly useful as it generates oxygen only when necessary. Things.

However, there is room for further improvement in the respirator. That is, in order to drop or flow the liquid medicine in the inner container into the outer container, the entire inner container must be slid downward and downward, since the stopper is pushed out by the raised body fixed to the outer container. One is that the area of the sliding part is large and the sealing process to maintain airtightness is troublesome. Another is that if the outer container and inner container are distorted, the sliding down operation cannot be performed smoothly. In addition, there is also an inconvenience that the carbon dioxide gas of the exhaled gas flows back into the outer container during use and lowers the oxygen concentration.

[0007]

SUMMARY OF THE INVENTION An emergency respirator according to the present invention solves all of the above-mentioned problems, and reduces the area of a sliding portion in an opening operation so as to maintain a seal for maintaining airtightness. It has been developed for the purpose of simplifying the operation, smoothing the sliding operation at the time of opening, and reducing the amount of carbon dioxide in the exhaust gas flowing backward to the outer container.

[0008]

An emergency breathing apparatus according to the present invention comprises an outer container having a bellows portion and also serving as a reaction chamber for accommodating a medicine, and is integrally connected to the inside of the upper surface of the outer container.
Contains liquid medicine that generates oxygen by reacting with the medicine in the vessel
And the inner container that penetrates vertically in the inner container, and
Connect the inner container integrally so that it is inscribed on the side of the inner container.
And cut off the center, and above the inner container
At the lower end of the remaining part, penetrate it horizontally and
Is a cylindrical wall with a through hole that opens into the space inside the outer container
Part, the inner and outer ends are fitted tightly with this thick part,
Penetrate the lower surface of the inner end inner container and project outside the inner container
And a rod that is slidably guided vertically as a whole
-Shaped stopper and a retaining cap formed at the inner end of the stopper.
Lung-shaped protruding piece, on the outer surface of the inner end of the plug along its generatrix
And a ring formed at the outer end of the plug
The groove, the operation pulling piece provided at the outer end of the stopper, and the outer container
The communicating respirator, the respirator and the outer container
An auxiliary chamber inserted between the vessels and containing a carbon dioxide adsorbent
The pulling piece at the outer end of the plug is pulled upward, and the
When the lunge-shaped projection comes into contact with the bottom of the inner container,
Extend the inner container and outer container over the thick part on the bottom of the inner container.
While communicating with each other, an annular groove was formed in the thick part
Vertically aligned with the through hole, the top of the inner container and the outer container
Are communicated with each other .

[0009]

When the end protruding outside of the rod-shaped plug is held by hand and displaced by an impulse (pulled up in FIG. 2), the liquid medicine flow passage communicates between the inner container and the outer container (see FIG. 3). . Then, pull out the sealing plug of the respirator and apply the mask to the nose and mouth.

Since only the thin rod-shaped plug is displaced when the plug is opened, the area of the sliding portion between the plug and the inner container (or both the outer container and the inner container) is very small, and The sealing process for maintaining the airtightness is simplified, and the sliding operation is light and smooth.

Due to the communication between the inner container and the outer container, the liquid medicine supplied in an appropriate amount from the inner container is brought into contact with the medicine in the outer container to generate oxygen. The oxygen reaches the respiratory mask via the auxiliary chamber, and enters the body by inhalation of the mask wearer.

At the time of exhalation, a gas having a high mixing ratio of carbon dioxide gas is discharged. However, most of the carbon dioxide gas is adsorbed by the adsorbent in the auxiliary chamber in the process of flowing back to the outer container, so that the carbon dioxide flowing into the outer container is discharged. The gas is small. Therefore, an increase in carbon dioxide in the outer container is suppressed.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings. Generally described in FIGS.
Is an outer container having a bellows portion 11 and also serving as a reaction chamber for containing a drug 81, 2 is an inner container attached to the inside of the outer container 1 and containing another liquid drug 82, and 3 is a container in which the two drugs 81 and 82 are brought into contact. A rod-shaped plug 4 provided between the outer container 1 and the inner container 2 for generating oxygen is connected to the outer container 1 and connected to the respirator 6 via a hose or other communication pipe 5. , An auxiliary chamber for accommodating the carbon dioxide adsorbent 83, 6 indicates a respiratory mask provided on the distal end side of the communication pipe 5, and 7 indicates a sealing stopper removably fitted to the mask 6.

The outer container 1 is made of a semi-rigid synthetic resin material or the like, for example, in the shape of a long cylinder, and the bellows portion 11 of the chest can be appropriately expanded and contracted by breathing of a mask wearer. Although the entire outer container 1 in the illustrated example is integrally formed, the bellows portion 11 may be formed separately. In this case, the portion other than the bellows portion 11 may be made of a hard material.

Attachment ear pieces 1 provided on both upper sides of outer container 1
The hanging belt 13 having both ends attached to 2, 12 is supported by the person using this apparatus by hanging the entire body on a shoulder or a neck.
It is used for hanging on an L-shaped hanging screw or the like during storage.

The inner container 2 is made of, for example, a hard synthetic material or a lightweight metal material and has a cylindrical shape, and is fixedly attached to the outer container 1 by welding or other means. A lid 21 is airtightly fitted on the upper surface of the inner container 2, and the liquid 21 is injected by removing the lid 21.

The medicine 81 to be put in the outer container 1 is, for example, a catalyst added to manganese dioxide, and the liquid medicine 82 to be put in the inner container 2 is, for example, water. Both containers 1,
The types of the medicines 81 and 82 to be put into the container 2 are not limited as long as the medicines generate oxygen when the two medicines come into contact in the outer container 1. However, the medicine 82 of the inner container 2 is the rod-shaped plug 3 described later.
It is required to be in a liquid state because it is gradually dropped or flowed down through the flow passage 32.

For example, a rod-shaped plug 3 made in a circular cross section
Has one end 31 protruding to the outside for manual operation, and the liquid medicine flow passage 3 of the stopper 3 only in an emergency.
In order to make the inner and outer containers 1 and 2 communicate with each other at 2, the inner container 2 or both the outer container 1 and the inner container 2 are slidably mounted.

The illustrated rod-shaped stopper 3 is slidably inserted through, for example, a cylindrical thick portion 22 of the inner container 2, and the other end 33 is projected into the outer container 1. One end 31 of the rod-shaped plug 3, that is, an operating annular pulling piece 34 provided at the outer end also serves as a stopper that determines the lower limit position of the plug 3 in a normal state, and the other end 33 of the plug 3. ,
That is, the warung-like projection 35 provided at the inner end functions as a stopper that regulates the upper limit of the sliding displacement.

The flow path 32 of the liquid medicine 82 is
2 can be formed as a groove on the surface or a hole passing through the inside. In normal times, only one of the outer container 1 and the inner container 2 is opened, and the rod-shaped plug 3 is slid in the direction of arrow A in FIG. When it is moved and pulled up, it opens over the outer container 1 and the inner container 2 as shown in FIG.
Make communication between them.

The rod-shaped plug 3 can be modified by itself or the flow passage 3
Needless to say, by changing the set position of 2, etc., the container can be slid in the direction in which it is pushed into both the inner and outer containers and opened.

When the rod-shaped plug 3 is operated as described above, as shown in FIG. 3, the through hole 23 provided in the thick portion 22 of the inner container 2 and the annular groove 36 provided in the plug 3 communicate with each other. , Outer container 1
Since the inside and the gas portion of the inner container 2 have the same pressure, the liquid medicine 8
2 is supplied from the inner container 2 to the outer container 1 through the flow passage 32.

The reference numeral 10 in FIG.
2 is an O-ring provided on the sliding portion of the rod-shaped plug 3.

The above-mentioned auxiliary chamber 4 for accommodating the carbon dioxide adsorbent 83 is made of a hard synthetic resin material or a lightweight metal material, for example, in the shape of a rectangular tube, and is fixedly attached to the outer container 1 by welding or other means. It is.

In the auxiliary chamber 4 at a position close to the communication port 41 for the outer vessel 1 and the connecting pipe 42 for the communication pipe 5, the carbon dioxide adsorbent 83 is applied to the outer vessel 1 and the respirator 6.
Are provided respectively so as not to mix or scatter.

A lid 43 is fitted on the upper surface of the auxiliary chamber 4 in an airtight manner. The lid 43 is removed and a carbon dioxide adsorbent 83 is put in the lid 43. Similarly, one of the agents 81 for generating oxygen is put into the outer container 1 through the communication port 41 by removing the lid 43 and the filter net 9.

The other end of the communication pipe 5 having one end connected to the connection pipe 42 of the auxiliary chamber 4 is fitted into the connection port 61 of the respiratory mask 6. The connection port 61 of the respiratory mask 6 is attached and detached so that the carbon dioxide contained in the air that naturally flows into the auxiliary chamber 4 does not contact the adsorbent 83 in the auxiliary chamber 4 and deteriorate it. It is desirable to provide a flexible sealing plug 7.

The sealing plug 7 is provided with a pulling piece 71 having an annular portion into which a finger is inserted, for example, to facilitate removal in an emergency. The pulling piece 71 holds the breathing mask 6 on the face unless the sealing plug 7 is pulled out. It should be a size that cannot be attached to This configuration is for preventing the user from forgetting to remove the sealing plug 7.

Reference numeral 72 denotes a stop band that is wrapped around the head when the mask 6 is worn on the face. If this stop band 72 and the belt 13 for hanging the shoulder or the neck of the outer container 1 are used, both hands of the user of the device are free during evacuation in a fire or the like, which is preferable.

[0030]

According to the emergency respirator of the present invention described above, the inner container can be opened between the outer container only by sliding the rod-shaped stopper, so that the area of the sliding portion is increased. Can be reduced, not only the sealing process for maintaining the airtightness of the sliding portion can be facilitated, but also the sliding operation of the plug can be smoothly performed with a light force.

Further, the carbon dioxide in the exhaust gas flowing backward to the outer container can be captured in the auxiliary chamber containing the carbon dioxide adsorbent, so that the oxygen concentration in the outer container can be stably maintained without lowering. Has the effect of

Furthermore, the device of the present invention can be used for more than 20 minutes simply by increasing the amount of the drug, regardless of the type that the user can carry around the shoulder or neck. It is extremely effective for use as an evacuation tool in case of fire.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of an emergency breathing apparatus according to the present invention.

FIG. 2 is a longitudinal sectional front view showing a part of the same cut away.

FIG. 3 is a longitudinal sectional front view of a main part of the rod-shaped plug in an opened state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer container 11 Bellows part 2 Inner container 3 Rod-shaped plug 32 Flow path 4 Auxiliary room 6 Respiratory mask 7 Sealing stopper 71 Puller 81 Drug 82 Liquid drug 83 Carbon dioxide adsorbent

Claims (3)

(57) [Claims] 1. A and the outer vessel of the reaction chamber serves to accommodate the medicament comprises a bellows part, integrally connected is to the upper surface inside the outer container
Liquid medicine that reacts with the medicine in the outer container to generate oxygen
Inner container containing the agent and penetrating this inner container vertically
To the inner container so that it is inscribed on the side of the inner container.
It is connected integrally, the center is cut out, and the contents are
Penetrate it horizontally into the lower end of the upper part
A through hole with one end open to the space inside the outer container
Airtight the cylindrical thick part and the inner and outer ends with this thick part
Mate and penetrate the bottom of inner container
It is designed to protrude and to be slidable up and down as a whole
The inserted rod-shaped plug is inserted into the plug formed at the inner end of the plug.
Flange-shaped protruding piece of the stopper and the outer surface of the inner end of the plug
Provided at the flow passage formed along the generatrix and at the outer end of the plug
Operating groove provided on the outer end of the plug body
When the breathing mask communicates with the outer container, Ma for the respiratory
An auxiliary chamber that is inserted between the disc and the outer container and contains a carbon dioxide adsorbent, and pulls the pulling piece at the outer end of the plug upward,
When the flange-shaped protruding piece at the end of the stopper abuts against the bottom of the inner container
The inner container and outer container
And an annular groove is formed in the thick part.
Vertically aligned with the through hole
An emergency breathing apparatus characterized in that the container and the container communicate with each other . Wherein the outer container of the reaction chamber serves to accommodate the medicament comprises a bellows part, integrally connected is to the upper surface inside the outer container
Liquid medicine that reacts with the medicine in the outer container to generate oxygen
Inner container containing the agent and penetrating this inner container vertically
To the inner container so that it is inscribed on the side of the inner container.
It is connected integrally, the center is cut out, and the contents are
Penetrate it horizontally into the lower end of the upper part
A through hole with one end open to the space inside the outer container
Airtight the cylindrical thick part and the inner and outer ends with this thick part
Mate and penetrate the bottom of inner container
It is designed to protrude and to be slidable up and down as a whole
The inserted rod-shaped plug is inserted into the plug formed at the inner end of the plug.
Flange-shaped protruding piece of the stopper and the outer surface of the inner end of the plug
Provided at the flow passage formed along the generatrix and at the outer end of the plug
Operating groove provided on the outer end of the plug body
When the breathing mask communicates with the outer container, Ma for the respiratory
A sealing stopper that is detachably attached to the mask, a respiratory mask,
An auxiliary chamber that is inserted between the outer containers and contains a carbon dioxide adsorbent;
When the flange-shaped protruding piece of the
The path straddles the thick part on the bottom of the inner container and the inner container and outer container
And an annular groove is formed in the thick part.
Vertically aligned with the through hole
An emergency breathing apparatus characterized in that the container and the container communicate with each other . 3. A sealer for a respiratory mask is provided with a puller,
3. The emergency respiratory apparatus according to claim 2, wherein the handle has a size such that the respirator cannot be worn on the face unless the sealing stopper is removed.