JPH0521968U - Portable breathing apparatus - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] By directly connecting the air outlet of the first pressure reducing section and the air inlet of the second pressure reducing section, it is possible to reduce the size, weight and cost. It is easy to obtain and easy to carry. A high-pressure tank 1 for storing compressed air, a first decompression section 4 for removably connecting the high-pressure tank 1 to decompress the air in the high-pressure tank 1 to a predetermined intermediate pressure, and further the first decompression. A portable breathing apparatus comprising a second decompression unit 5 connected to the unit 4 for decompressing to an inspiratory pressure, and an inhaler for guiding air discharged from the second decompression unit 5 to a mouth of a diver or the like, The air outlet of the first pressure reducing portion and the air inlet of the second pressure reducing portion are detachably and directly connected in a sealed manner.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a portable breathing device used in water, in a fire, or in a rescue operation.

[0002]

[Prior Art]

 Conventionally, a breathing apparatus in water has a large-capacity high-pressure tank that stores compressed air of 10 to 14 liters, a first decompression unit that decompresses the air in the high-pressure tank to a predetermined medium pressure, and a first decompression device. It is known that a second decompression section is connected to the section with a connection hose to reduce the pressure to the intake pressure, and an intake tool that guides the air discharged from the second decompression section to the diver's mouth. However, recently, a small-sized high-pressure tank with a capacity of about 100cc was developed for young people who want to dive without license. This is almost the same as that described above, except that a high-pressure tank with a small capacity for storing compressed air of about 100 cc is used, and the connecting means between the first pressure reducing section and the second pressure reducing section is made of synthetic resin. The major difference is that they are connected by a connecting tool made of wood.

[0003]

[Problems to be solved by the device]

 By the way, in a breathing apparatus that uses a small high-pressure tank of this type, since the assembly on the first decompression unit side and the assembly on the second decompression unit side are connected by a connecting member made of a synthetic resin material, it is large accordingly. In addition, the number of parts also increased, and the number of assembly steps increased. Moreover, since the connecting parts are exposed at the locations, they are weaker than those of both stages, are easily damaged, and are dangerous.

[0004]

[Means for Solving the Problems]

 Therefore, this invention is directed to a high-pressure tank for storing compressed air, a first decompression section for removably connecting the high-pressure tank to decompress the air in the high-pressure tank to a predetermined intermediate pressure, and further the first decompression unit. A portable exhalation device comprising: a second depressurizing part connected to the depressurizing part to depressurize to an inspiratory pressure; and an inhaler for guiding air discharged from the second depressurizing part to a mouth of a diver or the like. An air outlet of the first decompression unit, wherein the air outlet of the first decompression unit and the air inlet of the second decompression unit are detachably and directly connected in a sealed manner. The above-mentioned problem is solved by providing a portable breathing apparatus characterized in that the air-conditioning section and the air inlet section of the second decompression section are made of a metal material.

[0005]

[Action]

 With the above structure, the air inlet of the second pressure reducing portion can be male-female-fitted or screwed into the air outlet of the first pressure reducing portion, so that both stages can be directly directly connected to each other and downsized. Of.

[0006]

【Example】

 Specific embodiments of the present invention will be described below with reference to the drawings. 1 is a cutaway sectional view of a main part of a portable breathing apparatus for diving, and FIG. 2 is a perspective view of the portable breathing apparatus. This portable breathing apparatus A includes a high pressure tank 1, a regulator 2 and an inhaler. It is composed of 3 etc.

As the high-pressure tank 1, a small cylindrical tank having an internal capacity of 90 cc to 300 cc and capable of sufficiently withstanding 200 atmospheric pressure is used, and is attached to the regulator 2 in a detachable and sealed manner.

The regulator 2 is composed of a first pressure reducing portion 4 and a second pressure reducing portion 5 directly connected to the first pressure reducing portion 4. The first depressurizing unit 4 has a standard type pressure adjusting unit (not shown) inside the pressure adjusting unit main body 6, and the high pressure tanks 1 can be detachably attached to the right and left sides of the pressure adjusting unit main body 6, respectively. The elbow-shaped connecting portion 7 is integrally molded with the same body, or is formed separately as shown in the figure, and is continuously connected via bolts 8 and the like. As a result, the high-pressure air of 200 atm in the high-pressure tank 1 is introduced into the pressure adjusting section, where it is reduced to a predetermined medium pressure, for example, about 9 atm, and is introduced to the air discharge port 9 side. The air discharge port portion 9 is formed to project upward from the upper portion of the pressure regulating portion main body 6 in the same body or in a separate body. Then, the male screw portion of the air introduction port portion 10 of the second pressure reducing portion 5 is screwed to the female screw portion of the air outlet portion 9, and the second pressure reducing portion 5 is integrated with the first pressure reducing portion 4.

The second decompression unit 5 further decompresses the air introduced from the air introduction port unit 10 to an intake pressure of about 2 to 6 atmospheres and discharges it from the on-off valve 11 into the intake device 3. ing. At this time, the opening / closing operation of the opening / closing valve 11 is performed by operating the lever 13 made of an elastic material extending from the opening / closing valve 11 to the vicinity of the diaphragm 12 of the intake tool 3. The air outlet 9 of the first pressure reducing portion 4 and the air inlet 10 of the second pressure reducing portion 5 are made of a metal material, and the direct connection between the two 9 and 10 can be achieved by screwing as described above. A male and female fitting connection may be used.

The air intake tool 3 has a diaphragm 12 which is hermetically attached to the front opening by a cap 14 and a mouthpiece attachment portion 16 which attaches a mouthpiece 15 to the rear portion. Is a box-shaped whole, in which a lower mounting portion 17 which is detachably attached to the upper portion of the pressure regulating portion main body 6 of the first depressurizing portion 4 and which is hermetically mounted is formed. Therefore, when the second decompression unit 5 is attached to the first decompression unit 4 and then the air intake tool 3 is attached to the first decompression unit 4, the second decompression unit 5 is housed inside the intake unit 3, and the lever described above is also installed. 13 The free end is located near the diaphragm 12. Exhaust valves 18 are attached to the left and right of the intake tool 3. In the figure, 19 is a purge button for pushing the diaphragm 12 against the spring from the outside, 20 is a tightening belt, and 21 and 22 are pressure adjusting holes of the second pressure reducing portion 5 and a sealing cap.

In use, when the two high-pressure tanks 1 are attached to the left and right elbow-shaped connecting portions 7 of the first depressurizing unit 4, the high-pressure air of 200 atm in the high-pressure tank 1 is discharged in the first depressurizing unit 4. The pressure is reduced to 9 atm, and the air is discharged from the air outlet 9 through the air inlet 10 of the second pressure reducing unit 5 into the second pressure reducing unit 5, where it is further reduced to the intake pressure. Then, the diver holds the mouthpiece 15 with his mouth before or after water entry and holds the portable breathing apparatus A with one hand. Then, when air is taken in through the mouthpiece 15, the internal pressure in the air intake device 3 is lowered and the diaphragm 12 moves to the rear mouthpiece 15 side, and at the same time, the lever 13 is pushed backward to open the opening / closing valve 11. (2) The air depressurized in the depressurization unit 5 is guided into the air intake device 3 and can inhale the air, and conversely, when the air is exhaled, it is exhausted into the water from the exhaust valve 18.

FIG. 3 is a side view of a portable breathing apparatus for fire or rescue of water. This portable breathing apparatus B is substantially the same as the above-mentioned one, but there is a difference. The first depressurizing portion 4 is formed in a rod shape and the rod-shaped connecting portion 23 is continuously provided, and one high-pressure tank 1 is detachably and hermetically attachable to the lower end portion thereof. The point is that a trumpet-shaped mask 24 is attached to the mouthpiece attachment portion 16 of the tool 3 in place of the mouthpiece 15.

[0013]

[Effect of the device]

 As described above, according to the present invention, the air discharge port 9 of the first decompression unit 4 and the air introduction port 10 of the second decompression unit 5 are detachably and directly connected in a sealed manner. The size and weight can be further reduced, the number of connecting parts can be reduced, and the assembly man-hours can be reduced to reduce the cost. Further, since the air outlet 9 of the first pressure reducing section 4 and the air inlet 10 of the second pressure reducing section 5 are made of a metal material, the connection is reliable and strong, and the strength can be increased. Even if the part is exposed, it is more advantageous in strength than the conventional one.

[Brief description of drawings]

FIG. 1 is a cutaway sectional view of a main part of a portable breathing apparatus for diving.

FIG. 2 is a perspective view of the portable breathing apparatus.

FIG. 3 is a side view of a portable breathing apparatus for fire.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 High pressure tank 3 Air intake tool 4 1st decompression part 5 2nd decompression part 9 Air discharge part 10 Air introduction part

Claims (2)

[Scope of utility model registration request] 1. A high-pressure tank (1) for storing compressed air,
A first decompression section (4) for removably connecting the high pressure tank (1) to reduce the pressure of the air in the high pressure tank (1) to a predetermined medium pressure.
And a second decompression unit (5) that is further connected to the first decompression unit (4) to reduce the intake pressure, and an intake air that guides the air discharged from the second decompression unit (5) to the mouth of a diver or the like. A portable breathing apparatus comprising a tool (3), the air outlet (9) of the first pressure reducing section (4) and the air inlet (10) of the second pressure reducing section (5).
A portable breathing apparatus characterized in that and are detachably and directly connected in a sealed manner. 2. An air outlet part (9) of the first pressure reducing part (4).
The portable breathing apparatus according to claim 1, wherein the air inlet port (10) of the second decompression unit (5) is made of a metal material.