DE8336560U1 - ADJUSTABLE CONNECTION VALVE FOR BREATHING AIR - Google Patents

Description

PRINZ, LEISe'B,.; SINKE. "-PARTNER

Patent attorneys- \ _t , ■ .! Europberi.Patent.'Attorneys

Munich Stuttgart

Gilbert VANDEPUTTE December 19, 1983

Frans Birontlaan 73
2600 Berchem / Belgium

Our sign; V 783

"Adjustable connection valve for breathing air supply" .

The present invention relates in particular to a controllable connection valve for the supply of breathing air to a connection valve, which on the one hand is continuously connected to a line for the supply of cleaner or purified air and on the other hand is suitable for interaction with the filter of a so-called gas mask or the like. with regard to its automatic opening when it is coupled to the gas mask, so that it is an expedient Controlled air supply between a minimum and a maximum value allows, in order to ensure a faultless Supply of pure or purified air to the filter of the gas mask or the like. So that any superfluous effect of the Filter is avoided and its service life is thereby significantly extended.

If such a filter is detached from the connection valve, it is its task to purify the air sucked in from the atmosphere before it is inhaled, whereby the Discharge of pure or purified air is automatically prevented by the connection valve.

This results in a connection valve that opens or closes automatically when connected a filter, for example on the filter of a gas mask or the like, or when removing the filter.

Accordingly, a connection valve of the type mentioned above is excellent for use in places where it is worn

a gas mask is required and the person wearing the gas mask is tied to a certain place there from time to time is where you can connect the filter of your gas mask to a breathing air supply line to extend the service life the mask and especially its filter.

A device of the type mentioned above is suitable, for example, for use in unhealthy workplaces where the Workers have to leave their place from time to time, using the filter of their gas mask themselves to purify the air they breathe has to worry, but meanwhile stay in place so that her gas mask is connected to an air supply device aforementioned type can be connected.

In addition, the device in question is particularly suitable for use in those driving through contaminated terrain Vehicles, with the teams in the vehicle attaching their mask to such an air supply line can be used to extend their service life as much as possible. Vehicles equipped with such a device are suitable excellent for use in civil protection, as well as for military purposes and for the transport of auxiliary personnel, such as firefighters and the like, especially in large companies.

The characteristics and advantages of the system according to the invention are explained by the following detailed description of a controllable connection valve according to the invention. This description takes place with reference to the accompanying drawings, where:
30th

Figure 1 shows a radial section of a controllable connection valve according to the invention in a closed position Position represents;

Figure 2 is a view similar to Figure 1 of the connection valve in question, but with the Filter of a gas mask is connected, reproduces; Figure 3 shows a according to the section line III-1II the section made in Figure 2 of the relevant

■ ti · · ff

Device reproduces;

Figure 4 o a distribution line with, in the present case Case, five connections, each connection with a controllable connection valve according to the invention is provided, reproduces schematically; Figure 5 is a view similar to Figure 1 reproduces an implementation variant of the invention; Figure 6 is a view similar to Figure 5 of the device concerned, but with the filter of the gas mask connected to the connection valve according to the invention connected;

the figure 7 a according to the section line VII-VII Figure 6 shows the section of the device in question;

Figure 8 is a view similar to Figure 7 of a second extreme position of the relevant Port valve reproduces; and

Figures 9 and IO two according to the cutting lines IX-IX and X-X of Figures 7 and 8 show the sections of the device in question.

The controllable connection valve 1 according to the implementation of the invention explained by FIGS. 1-4 consists essentially of four parts. 25th

The first part 1 of the controllable connection valve according to the invention is an outer tubular body 2 having an inwardly directed collar 3 at one of its ends.

The second part is a tube body 4 having a bottom 5 at one end, which is at a certain distance from the The bottom 5 has an outwardly directed collar 6, with which it rests against the aforementioned collar 3 of the body 2.

The part of the aforementioned body 4 located between the base 5 and the collar 6 is provided with one or more Holes 7 with four holes in the present case

III · * ■ ·

provided, which, as can be seen from Figure 3, are arranged at the same angles in the body 4.

The third part 8 consists of a cylindrical outer part 9 and a shorter, cylindrical inner part 10, the ends of which are connected to one another by means of an annular bottom 11 are connected, the outer diameter of the body 9 and the inner diameter of the body 2 being selected in this way are that the body 9 slidably fits in the body 2, while the inner diameter of the body 10 and the outer diameter of the part of the body 4 having the holes 7 are chosen such that the body IO slidably fits on the with the holes 7 provided part.

The part 9 is provided with one or more grooves 12 which cooperate with a pin 13 fixed in the body 2 for the purpose of blocking the two bodies 2 and 8 against mutual rotation.

The part IO is with one or more holes 14 and that provided with four holes in the present case, which are mutually shifted by 90 °.

The fourth part of the connection valve according to the invention is a conical spring arranged between the two bodies 4 and 8 15th

Finally, the free end of an air hose 16 is suitably at the free end of the aforementioned body 4 the supply of pure or purified air attached, while on the body 2 suitably one for cooperation with the filter 18 of a gas mask or the like. imaginary rubber hood 17 is arranged.

In its position explained by Figure 1, the connection valve according to the invention is closed and reached, the air supplied through the hose 16 does not reach the aforesaid hood 17, due to the fact that the body 8 passes through

the spring 14 is pushed outwards, consequently the connection valve closed is.

By arranging the filter 18 of the gas mask 19 in the hood 17 (Figure 2), the result is that the body 8 is pushed through the filter Λ8 against the action of the spring 15 into the body 2, so that the holes 14 are opposite to the holes 7 of the body 4 so that the air supplied through the hose 16 reaches the filter 18 through the holes 7 and 14 and can be inhaled directly by the user of the gas mask 19.

It should be noted here that the holes 14 and 7 by suitable rotation of the body 4 more or less each other can cover for the purpose of regulating the air flow rate.

With a suitable choice of the diameter of the holes 7 and 14, it is also impossible to get the connection valve through To close the position explained in Figure 2 completely, consequently the air supply to the filter 18 is not interrupted can be.

As can be seen from the preceding description, the connection valve 1 closes automatically when it is pulled out of the filter 18 from the sleeve 17 in that the body 8 by the spring 15 in its drawn in Figure 1 Position is returned.

Around the two bodies 4 and 8 in suitable mutual angular positions bring and hold in these positions is, for example, a locking device between the bodies 3 and 4 provided, the task of which is the two bodies 2 and 4 with mutual rotation in a suitable to maintain mutual position. Mostly, however, the one between the collar 6 and 3 under the influence of the spring is sufficient 15 to keep the bodies 2 and 4 in such mutual position.

If on a common supply line 2O, for example According to Figure 4, several hoses 16 are connected for a valve 1 with a connecting sleeve 17, It goes without saying that suitable measures must be taken to ensure that the pressure of the breathing air in these hoses, remains constant. All sorts of means are suitable for this, such as sensors, whose task it is to provide the compressed air source to report the number of air supply hoses used in each case for the purpose of regulating the air supply volume accordingly, as well as means to be actuated by a person who connects his mask to a hose for regulating the necessary Amount of air, a pressure relief valve 21 arranged in line 2O for keeping the air pressure constant in line 2O and in hoses 16, etc.

15th

The controllable connection valve explained in Figures 5-10 consists essentially of five elements. The first element 2, whereupon the hood in this case too is attached airtight, consists of two concentric parts 22 and ~ \ 3, which by a two diametrically opposite one another opposing passages 25 having wall 24 are connected to one another. This element 2 is according to the present Implementation extended by a fifth element 26, essentially consisting of a cylindrical one Part 27, the outer diameter of which corresponds to that of element 2, and a concentric with part 27, Slidably fitting part 28 in part 23 of element 2. These parts 27 and 28 are interconnected by a wall 29, which with two diametrically opposed, in the present case of a narrow part 31 and a wider part 32 of existing passages 30 is provided.

The aforementioned elements 2 and 26 can be mutually rotated and are preferably provided with a locking device equipped for mutual locking in certain positions.

For this purpose, several incisions 33 are provided, for example, in the wall 29, whereby one is formed by a spring 35 claimed ball 34 can interact.

The second element 4 of the connection venti Is 1 consists of a wall 36 _r slidable in the aforementioned element 26 which is mounted on a pipe part 37, to which, on one side of the wall 36, an air hose 16 can be suitably connected, while on the other Side of the wall 36, in the aforementioned pipe part 37 openings 7 are provided. The end of the pipe part 37 located beyond the openings 7 has an end wall 38 to which the wall 39 of the third element J is attached, which is connected to the second element 4 in a suitable manner, for example by gluing or in some other way, and together with the Element 4 can be displaced with respect to the first element 2, the wall 39 being provided with holes 14.

Finally, the fourth spring-shaped element 15 is arranged between the first element 2 and the third element 8.

In the position shown in Figure 5, the relevant connection valve is closed. The wall 36 of the element 4 is indeed on the wall 29 of the element 26, so the openings 30 are closed during the the openings 7 having part of the element 4 on the Part 28 of the element 26 rests, consequently any air supply taking place through these holes is interrupted is.

When arranging the filter 18 of a gas mask 19 or the like. in the hood 17 (Figure 6), the third element 8 and thus also the second element 4 move with respect to each other on the first element 2 and the fifth element 26, as a result the passages 7 move away from the part 28 of the element and the wall 36 of the element 4 move away from the Openings 30 removed so that the air supplied through the hose 16 passes the filter 18 through the pipe part 37 and the

& · · · - · • ι ·

Passages 7, 30, 25 and 14 can reach.

At the same time, this compresses the spring 15, so that after the filter 18 has been removed from the hood 17, the valve 1 is automatically closed again by the spring 15.

For the purpose of regulating the amount of air supplied to the filter or the gas mask 19, the element 26 can with respect to the Element 2 are rotated so that the passages 30 of the wall 29 are more or less covered by the passages 25 will.

Thanks to a suitable choice of the shape of the openings 30, there is the possibility of air passage from one through stops 40 and 41 to enlarge the specified minimum width (Figures 8 and 10) to the maximum width.

The present invention is of course not limited to the examples given in the preceding lines with reference to the implementation methods of the relevant controllable connection valve described in the accompanying drawings, but also relates to the most diverse changes, additions and adaptations of the same in terms of shape and size, provided, of course, that the scope of the invention is not exceeded.

Claims (12)

Protection claims 1.- Adjustable connection valve for breathing air supply, characterized in that it essentially consists of a first element (2) on which a hood (17) is mounted, which is for airtight cooperation with the filter (18) of a gas mask (19) or like. suitable; one in the first element (2) displaceable second element (4), to which an air supply line (16) is connected and that is closed at its free end (5) and provided with at least one outlet opening (7); a displaceable with respect to the second element (4) a third element (8) which is suitable for opening or closing the valve, and this also has at least one opening (14), said second fully or partially in front of the opening (7) Aes element (4) can be arranged; and a fourth element in the form of a spring (15) arranged between the second element (4) and the third element (8) which continually tries to keep the valve in its closed position or to bring it into this position. 2.- Controllable connection valve for breathing air supply of the type consisting essentially of four elements ^{uw 1} . though f | from a first element (2), whereupon a hood (17) is mounted i | 25 benefits, with which the filter (18) of a gas mask or the like. (19) if can work together; a second element (4) to which a u Air supply line (16) is connected and that on his Γ free end (38) is closed and has at least one passage (7), this second element (4) in relation p 30 is displaceable on the first element (2); a third! Element (8) that the valve (1) can be opened or closed capable and also with an air passage opening (14) ji is provided; and a fourth, consisting of a spring Element (15) that continuously tries to keep the valve (1) in its closed position or to bring it into the position, d adurc h marked the between the aforementioned first element (2) and the aforementioned second element (4) a fifth element (26) is arranged, the at least one air passage opening which is displaceable with respect to an air passage opening (25) in the first element (2) (30), the second element (4) forms a whole with the third element (8) and the air supply in the valve practically takes place axially. 3. Adjustable connection valve according to claim 1, characterized characterized in that the aforesaid first element (2) is a pipe part which, at one of its ends, has a has inwardly directed collar (3) and carries the aforementioned hood (17). 4.- controllable connection valve according to claim 1 or 3, characterized in that the aforesaid second element (4) is a tubular part which is rotatably arranged in the first-mentioned element (2) and which has an outwardly directed collar (6) presses against the aforementioned inwardly directed collar (3) of the first element (2), this tubular part at least one circumferential opening between the aforementioned outwardly directed collar (6) and the closed end (7). 5.- controllable connection valve according to claim 4, characterized in that in the aforementioned second element (7) four openings (7) are arranged at the same angles. 6.- Adjustable connection valve according to any of the preceding Claims, characterized in that the aforementioned third element (8) consists of two at one end with each other connected pipe parts (8, 10), of which the outer pipe part (9) is displaceable in the aforementioned first element (2), but does not rotate while the Ipneijrohrteil (1O) slidably fits over the aforementioned second element (4), and at least one passage in the inner tube part (10) (14) is provided, which can be pushed in front of a passage (7) of the aforementioned second part (4). 7.- controllable connection valve according to claim 6, there- characterized in that the aforementioned inner pipe part (10) of the third element (8) is four at equal angles has holes (14) arranged in relation to one another. 8.- Adjustable connection valve according to any of the preceding Claims, characterized in that the first element (2) and the third element (8) are mutually exclusive be non-rotatably connected to one another, for example in that in the first element (2) at least one with a longitudinal groove (12) of the third element (8) cooperating radial pin (13) is provided. 9.- Adjustable connection valve according to any one of the preceding Claims, characterized in that the aforementioned first three elements, i.e. the first element (2), the second element (4) and the third element (8), cylinder parts are. 10. Adjustable connection valve according to one of the preceding claims, characterized in that the passages (7th or 14) of the second and the third element (4 or 8) in every possible relative position of these elements are not completely closed to each other. 11.- Adjustable connection valve according to claim 10, characterized in that the diameter of one of the aforementioned Holes (7, 14) is larger than the distance between two adjacent holes. 12.- Adjustable connection valve according to any of the preceding Claims, characterized in that the between the second element (4) and third element (8) of the the aforementioned elements arranged spring (15) is a conical spring.