SU511953A1 - Breathe-helping machine - Google Patents

Description

one

This invention relates to individual means of protecting the respiratory organs of a person who is not suitable for breathing.

Breathing apparatuses are known that contain a breathing chamber connected to a face mask through hoses equipped with non-return valves and a regenerative cartridge with the environment through an overpressure valve fixed on a spring-loaded diaphragm and with a chamber of reduced pressure of the oxygen supply unit through an inlet valve of a pulmonary automaton including The elastic control membrane is spring-loaded from both sides.

The aim of the invention is to reduce respiratory resistance while increasing the reliability of the apparatus.

For this purpose, the 1-diaphragm working chambers of the intake valve and overpressure-α-valves are in communication with the pressure reducing chamber through throttles, and with the cavity of the breathing bag through nozzles that interact with a two-way Valve between them, mounted on the control membrane.

FIG. 1 shows the proposed breathing apparatus; in fig. 2 — Lung machine and overpressure valve.

The breathing apparatus contains a face mask 1, breathing hoses 2 with exhalation check valves 3 n breath 4, an oxygen cylinder 5, an oxygen supply device 6, a pressure gauge 7, a regenerative cartridge 8, a breathing bag 9 and an overpressure valve 10. Regenerative patrop 8 is provided with an absorber of the coal gas layer, and the cylinder 5 is filled with compressed oxygen.

The oxygen supplying device 6 contains an elastic control membrane 11 enclosed between two springs 12 and 13, the compression ratio of which is regulated by a nut 14. The iodine membrane space of the membrane

11 is connected to the breathing bag, and the ambient bag is connected to the atmosphere.

The membrane 11 with the rod 15 is connected to a double-sided valve 16 placed between the nozzles 17 and 18, of which are connected through the corresponding throttle 19 and 20 to the pressure-reducing chamber 21. In addition, the nozzle 17 is connected to a working chamber bounded by a membrane 22 connected to an overpressure valve 23, tightly pressed against its seat by a spring 24, and a nozzle 18 is connected to a working chamber limited by a membrane 25 connected to an inlet valve 26 pressed hermetically to his saddle with a spring 27. At the same time

"Valve 26 is installed in the channel, informing

breathing bag 9 with "amera 21, and valve 23 is installed in series with a check valve 28 in the channel, which communicates breathing room 9 with the atmosphere.

The flow sections of salt 17 and 18 are significantly greater than the flow sections of chokes 19 and 20.

The breathing apparatus operates as follows.

The air exhaled from the human lungs through the mask 1, the breathing hoses 2 and the valve 3 goes to the regenerative natron 8, where it is cleaned of carbon dioxide, and then enters the breathing room 9.

At Bdoche, the air purified from carbon dioxide and enriched with oxygen from the breathing room 9 through the valve 4, the breathing tubes 2 and the face mask 1 enters the human lungs.

The inhaled air is enriched by oxygen coming from the cylinder 5 through the oxygen supply device 6. With the cylinder 5 valve open, oxygen from the reduced pressure chamber 21 through chokes 19 and 20 and coil 17 and 18 enters the breathing bag 9. This amount of oxygen is sufficient to physical activity of average body. With an increase in the oxygen consumption of the human body at the moment of inhalation, a vacuum occurs in the air duct system of the device, which propagates through the breathing chamber 9 nodes of the control membrane 11.

From the pressure difference that occurs, the membrane 11, together with the stem 15, moves downward, compressing the spring 12, and the valve 16, closed on the stem 15, closes the nozzle 18. At the same time, the outflow of oxygen through the nozzle 18 stops. In the chamber under the membrane 25, the pressure instantaneously rises, and the membrane 25, compressing the spring 27 together with the valve 26 connected with it, moves downwards. As a result, the normally closed valve 26 moves away from its saddle, and oxygen from chamber 21 enters the breathing bag 9, causing the vacuum in the air duct system to decrease and the membrane And under the force of the spring 12 is moved to its original position, the valve 16 connected to it from nozzles 18. Through the open nozzle 18, oxygen from the chamber under the membrane 25 and entering through the throttle 20 enters the breathing bag 9. In this position, the force from the pressure on the membrane 25 decreases and the spring 27 returns it to its original position st position, and associated with the membrane 26 closes the valve seat and the supply of oxygen from the chamber 21 through the airway valve system 26 is stopped.

When there is an excess of air in the air-guide system, the control Diaphragm 11, compressing the spring 13, is moved to the upper position. The valve 16 connected to the membrane 11 overlaps the nozzle 17, and the exit from it of the oxygen coming from the chamber 21 through the throttle 19 is stopped. The force generated by the pressure on the membrane 22 compresses the spring 24 and moves the membrane 22

and the valve 23 connected with it upwards, together with the breathing bag 9 with the atmosphere through a check valve 28, which opens from the pressure in the duct system of the apparatus. After part of the gas mixture is released into the atmosphere and the pressure in the air duct system is reduced, the membrane 11, under the action of the force of the spring 13 returns to its original position, and the valve 16 connected to the membrane 11 opens the nozzle 17,

giving the output to the oxygen coming from the chamber 21 through the throttle 19. As a result, the pressure on the membrane 22 decreases and the spring 24 returns the membrane 22 n, the valve 23 connected with it to its original position.

Thus, the control of the valve for supplying oxygen to the air duct system and the valve for discharging the gas mixture from it in the breathing apparatus is performed using a single elastic membrane through two amplifiers. This makes it possible, with little effort on the part of the human lung, to control the valves, reliably sealed springs with greater stiffness.

Claims (1)

Invention Formula A breathing apparatus containing a breathing bag connected to the face mask through hoses equipped with check valves and a regenerative cartridge, with the environment through an overpressure valve fixed on the spring loaded diaphragm, and with a chamber of the reduced pressure of the oxygen supply unit through the inlet valve of the automatic machine that includes yourself elastic control diaphragm, spring-loaded from two sides, characterized in that, in order to reduce the resistance to breathing while increasing the reliability of operation, submembrane working chambers of the inlet valve and valve The overpressure is communicated with the pressure reducing chamber through the throttles, and with a breathing bag hollow through nozzles interacting with a two-way valve located between them, fixed on the control diaphragm. S 7 12 17 ie J