RU67451U1 - HOOD TYPE LIFE AND RESPIRATORY APPARATUS WITH SUCH LIFE - Google Patents

Abstract

The technical solution relates to personal protective equipment against harmful effects of inhalation, toxic and smoky gas environment and can be used, for example, as an adjuvant included in the kit breathing apparatus. The rescue device includes a heat-resistant hood with a porthole, a cervical obturator and a half mask, and a glass with an exhalation valve, made with the possibility of tight attachment to the hood. The hood has a flange mounted on it for connecting the first hose fitting, which in turn is connected to an air supply source through a second fitting equipped with a filter and nozzle with a sealing ring. The technical result consists in creating excess pressure under the hood and making it possible to connect the rescue device via hoses of any length to the air supply source. 2 independent. p-that f-ly, 6 is dependent. f-ts f-ly, 2 ill.

Description

This technical solution relates to means for personal protection of a person from the harmful effects of unsuitable for breathing, toxic and smoky gas environment and can be used, for example, as an adjuvant included in the breathing apparatus.

There are various designs of devices (for example, US4807614, US2435167 and US5113854) designed to rescue injured people in an environment unsuitable for breathing and containing a heat-resistant hood with a porthole, neck wrap and half mask. As the closest analogue was adopted rescue device according to patent US5113854.

The main disadvantages of the known devices are:

- low degree of protection due to the absence of excess pressure under the hood;

- the inability to connect the device to a source of compressed air, in particular, to a breathing apparatus with a high-pressure cylinder.

Thus, the task underlying the creation of the proposed solution is the task of eliminating the above disadvantages, namely the creation of the design of the rescue device, which ensures the presence of excess pressure under the hood and provides the ability to connect the hose to any air supply source. Accordingly, the technical result consists in creating a rescue device for solving the technical problem.

The above technical problem allows us to solve the proposed rescue device of the hood type, which includes a hood with a porthole, a neck obturator and a half mask, and a glass with an exhalation valve made with the possibility of tight attachment to the hood, while the said hood has a flange fixed to it for attaching the first fitting a hose connected in turn with an air supply source by means of a second fitting equipped with a filter and a nozzle with a sealing ring.

The glass with the exhalation valve is connected to the internal cavity of the half mask, while the exhalation valve consists of a valve locking element with a stem resting on a stiffness disk, preloaded by a spring, which is fixed by a cover with grooves for air passage (exit).

Advantageously, to said flange mounted on the hood, the first hose fitting is attached by means of a bracket, wherein the hose is connected to the inner cavity of the half mask.

The hood can be made of heat-resistant fabric of bright color, and the neck obturator can be made in the form of a rubber diaphragm with a central hole.

Mostly, on the front wall of the hood cap under the porthole, a pocket is made in which a metal insert with a central hole is mounted to fix the position with a flange.

In addition, a pocket can be made on the rear wall of the hood cap, in which a lodgement is made, made of a porous material with a central hole to ensure that the hood is fixed to the head.

Below, the proposed solution is disclosed in more detail with reference to the accompanying drawing, in which:

figure 1 presents a General view of the proposed rescue device hood type;

figure 2 shows the node fitting the hose with a source of air supply to the hood (type a in figure 1).

In accordance with the proposed utility model, the rescue device consists of a heat-resistant hood 1 with a porthole 2, a neck obturator 3 and a half mask 4. A flange 6 is attached to the hood 1 with a nut 5, designed to connect the flexible hose 14 to the hood through the first fitting 22.

In addition, a cup 8 is attached to the hood 1 with a nut 7, in which an exhalation valve is mounted, consisting of a valve 9, a stiffener 10, a rod 11 and a spring 12, fixed by a cover 13 with grooves for air outlet.

Hose 14 consists of the first 22 and second 23 fittings connected by a tube. The hose is attached to the hood with a bracket 15.

A nozzle 16 with a sealing ring 17 is installed in the second fitting 23 and the fitting 18 with the filter 19 pressed into it is screwed on.

the connection of the hose with a hood and a fitting 18 is provided by the sealing rings 20 and 21.

The operation of the rescue device is as follows.

When connecting the hose 14 to the quick-connect connection of the breathing apparatus (not shown in the drawing), air through the hole in the nozzle 16 with a given flow rate through the tube enters under the hood 1, creating excessive pressure in it.

Excess air is removed through the valve 9 of the exhalation valve and the strip of the cervical obturator 3.

The design of the proposed rescue device allows it to be used both in a set of breathing apparatus for firefighters and rescuers - to protect the respiratory system and eyesight of the toxic or smoky gas environment unsuitable for breathing, which is saved from harmful effects, and to connect to any other air supply source.

Claims (8)

1. A rescue device, including a hood with a porthole, a neck shutter and a half mask, and a glass with an exhalation valve, hermetically mounted on the hood and connected to the inner cavity of the half mask, while the said hood has a flange mounted on it for attaching the first hose fitting to be connected to a queue with an air supply source by means of a second fitting equipped with a filter and a nozzle with a sealing ring. 2. The device according to claim 1, in which the said exhalation valve contains a valve locking element with a stem resting on a stiffness disk, preloaded by a spring, fixed by a cover with grooves for air outlet. 3. The device according to claim 1, in which the first hose fitting is attached to the flange mounted on the hood by means of a bracket, wherein the hose is connected to the inner cavity of the half mask. 4. The rescue device according to claim 1, characterized in that the hood is made of heat-resistant fabric of bright color. 5. The rescue device according to claim 1, characterized in that the cervical obturator is made in the form of a rubber diaphragm with a central hole. 6. The rescue device according to claim 1, characterized in that on the front wall of the hood cover under the porthole there is a pocket in which a metal insert with a central hole is installed to fix the position using the flange. 7. The rescue device according to claim 1, characterized in that a pocket is made on the rear wall of the hood cap, in which a lodgement is made, made of a porous material with a central hole to ensure that the hood is fixed to the head. 8. A breathing apparatus, the kit of which includes a rescue device according to any one of claims 1 to 7.