DE1895974U - OXYGEN RESPIRATORY DEVICE. - Google Patents

Description

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Oxygen respirator

are üauerstoffatemBChutzgeräte known in which of the immediately n ch IEM opening dee fiesehenrentils flowing into the unit oxygen stream diverted Spülsauer «« material flow gate the ventilating ά & η airways of the unit say · »leads is said sink oxygen stream through a under the action of a second Saueretoffteilatrome »Standing control element after a certain side has elapsed and after the • flow of a certain amount of flushing oxygen is automatically shut off«. Furthermore, that is under the effect of the wide partial flow of oxygen via a pitot tube

Control element consist of a membrane f closing off a tree * which presses a locking bolt against the action of a spring on the flushing nozzle. The speed is dee by the Pitot tube flowing oxygen "z # · B by a pitot tube influenced such that a & r control pressure of the membrane is achieved only when a certain Spülsauerstoff" quantitative the flushing nozzle has flowed through *

A device of the type described is also known in which the tree, which partially absorbs your oxygen, is provided with a vent valve barely escaping oxygen either directed into the open or ^ tm pipeline in the inspiratory or immediately in AEEN breathing bag ·

Finally, an oxygen breathing apparatus of the type mentioned is known, in which the manual control valve was used as a control valve, which is operated by the control for the purge oxygen is closed at end of the flushing "in another embodiment, the handheld additional valve is normally open and is closed by control means for the Spülsaueretoff after completed flushing · 'Eb is still a design known" at

for Kegelung the Spttlsaueretoffmenge a standing under the flrkung a second Sauerstoffteiletromes control member "serves to Iiandaiusatäsventll acting" In one embodiment of this device is that hand additional valve with a pressure arc provided which may be abgedientet using a "piston against ä $ n the valve chamber once and which in another embodiment can be sealed against the valve chamber with the help of a membrane »The piston can also be provided with a nozzle for constant metering» through which a Torner-specific amount of Sas continuously flows to the equipment carrier *

All these known OerEte have Hacnteil * that the Sauerstoffspülventil is controlled by a pressure-sensitive component "of the above special" externally mounted on the device lines to the Preßsauerstoff in communication * This implies _f not only a complicated construction requires several gas "diehte compounds but also creates the risk that, in the event of leaks in the connections, the outflow of gas will trigger the pre-purging mechanism.

The! Price increase aims to reduce the disadvantages of the known pre-wash avoid facilities for oxygen breathing apparatus « Me! Firing concerns an oxygen breathing apparatus, its Lines and parts of the device carrying breathing air when the device is started up by supplying one through one of a control means actuated valve automatically regulates the amount of oxygen to be flushed »The innovation is that the

Control component * such as the control diaphragm *, control piston "or the like" closes a space closed on all sides "which is connected to the space on the other side of the control component via a throttle , whereby the shut-off valve arranged in the flushing line is closed in the rest position. The hiring has the advantage of an extremely simple design · Additional »lines carrying compressed gas are not required» This itself consists of only a few components *

Further details of the chaining can be found in the Fig * 1 and 2 schematically illustrated exemplary embodiments illustrated in section,

The embodiment according to Fig. 1 shows a pressure reducer housing I * whose connecting piece 2 is attached to the oxygen bottle not shown with the aid of the union nut 3 actuated 7 »which with its other end against the bteuermembran support 8 of the pressure reducer" which is in a known manner under the pressure of the closing spring 9 * Vi & Zixi the pressure in the trees 10 falls "lifts the diaphragm 8 via the pressure bar 7 the latch bolt 6 from "So that oxygen flows through the outlet line 11 to the device"

Coaxial to the pressure reducer is generally a media pressure chamber further valve seat 12 arranged »from which the line 13

leads into the Saswege of the device. The valve seat 12 is completed by the Versehlußkolben 14, which is against the Wall of the valve housing old with the help of a ring seal 15 is sealed and under the action of the closing spring 16 stands * This is supported against the ale formed vice Abutment 17 from «Finally, the valve housing 1 is on this inde through the screw-on protective cap 18 closed*

The valve bottom 14 eats with a bore 19 that contains a throttle 20,

! times the opening of the valve the oxygen cylinder, not shown, increases in the tree 21 d x pressure initially faster than so that the valve 14 * is opened 12 and Spülsauerstoff in the Serät occurs * Only mmi in Hardly 22 of the pressure to a predetermined in Eaum 22 » let has risen »the flushing valve 12, 14 closes again ·

The embodiment according to Fig. 2 differs from that according to Fig. # 1 essentially only in that the high pressure bore 4 is directly connected to the bar 25 stands »so that there is high pressure on the locking bolt 14 ·

The flushing valve 14 # ^ 2 is therefore operated by high pressure oxygen

The low-pressure gas coming from the pressure reducer 24 flows through line 25 to the device

Claims (1)

j: i> Sohutz.ansp.rüche b 1 · Oxygen breathing apparatus with automatic flushing of the lines and parts of the device carrying the breathing air when the device is put into operation by supplying an amount of oxygen regulated by a valve operated by a control device »characterized» that the control component (145 * as the control membrane "Steuericolben" or "the like." Closing part of a tree (22) closed on all sides is "which is connected via a throttle (20) to the edge (21, 23) of the other side of the control component (14) * whereby in the rest position the shut-off valve (12, 14) arranged in the flushing line is closed. 2, Sauerste ff respiratory protection device according to. 3 * Oxygen respirator according to claims 1 and 2 »characterized in that the control component (14) is under a spring (16) acting in a flowing direction» 1.1 4 · Oxygen breathing protective device according to claim 1 to 3 »thereby characterized »that the abutment (1?) of the peder (16) as the screw part that closes off the esum (22) on all sides (17) is trained » 5 »Oxygen breathing apparatus according to claim 4 #> l characterized »that the adjustable abutment (17) by a preferably screwable ight cap (18) is covered, 6 »Oxygen breathing apparatus according to claim 1" to 5 »thereby characterized in that the pipe (20) as one of the "movable" Control component (14) penetrating bore is formed 7 * oxygen breathing apparatus according to claim 1 to 6 with a pressure reducer, characterized in that the shut-off valve (12, H) is coaxial with the pressure reducer (5 ~ 9t 24) is arranged.