DE20316465U1 - Multiple chamber hose has high pressure and temperature main tube with spiral tank pressure sampling capillary tube in casing - Google Patents

Abstract

A multiple chamber hose has a high pressure and temperature main tube (1) and spiral tank pressure sampling capillary (3) tubes in the woven, or elastic outer casing (2) connected to equipment by a coupling piece (6) with main tube joint (7) and capillary (3) soldered into a bore (8).

Description

field of use the invention

The invention is used in Multi-chamber tubes, where several lines are combined in one unit and at least one line a flow channel for a medium formed. The invention is preferably used for hoses for pressurized gas Breathing apparatus.

characteristics the known prior art

Tube bundles are known at which a plurality of conduits (hoses) is combined. Such kind of bundle are voluminous, heavy and not very flexible. They also need an additional one Means the bundle summarizes.

Multi-chamber hoses are also known Contain several pipe ducts in a raw part. preferred Sage Field of application of such hoses are irrigation systems, at which initially a flatness of the hose on the floor should be ensured and at the same time sprinkling from several lines into different Directions executed becomes. The different line channels are therefore preferred arranged in a plane next to each other. It also follows that such hoses a different one when deforming in different directions Have resistance to deformation.

It is also known a hose which has the largest volume flow generated to combine with another hose in such a way that the smaller dimensioned hose wraps around the larger one in a spiral and so a uniform cable routing is achieved.

Unless such hoses in all line channels anyway the same medium must be transported in any case for each a separate connection is required for each cable duct. This creates a considerable amount of work and the structural work Dimensions are also large because of the necessary connection security.

The from the well-known hose materials Multi-chamber hoses are manufactured can only be used in a limited pressure-temperature range. This is preferably limited by the material that is used with regard to the Strength or the lower or upper temperature limit worst parameter. The temperature range is based on these of the whole arrangement.

With high pressure fabric hoses better dimensional stability and temperature resistance achievable. These hoses are very stiff and hinder the wearer of the breathing apparatus correspondingly strong. The thermal resilience is still limited. Protection against damage or destruction the hose is not available to the extent required. Such hoses are also heavy.

The well-known high pressure fabric hoses are either for a higher one Temperature range, as usual with hydraulic systems, or for low Temperatures, as usual for devices working outdoors, designed. High pressure fabric hoses are also available mostly made of rubber as the base material and subject to accordingly the danger embrittlement when exceeding or falling below of the respective temperature ranges.

Respirators are known the carrier a supply of breathing gas provided from a reservoir disposal put. Typical use cases such breathing apparatus are the compressed air breathing systems used in fire and disaster operations as well as diving equipment.

With the aforementioned breathing apparatus it necessary over connecting hoses supply the breathing gas to a control unit, which also functions as a regulator referred to as. The control unit then places the breathing gas inside ready to wear a mask. In addition to the breathing gas supply must be ensured be that the connecting hose only slightly impedes the wearer of the device.

In the known breathing apparatus this task by using a highly flexible corrugated hose made of elastic materials, preferably using rubber fabric material solved Service. Such hoses are light but voluminous and can easily destroyed. Use with diving equipment is excluded from the outset due to the lack of dimensional stability. Unless such hoses through metal or Plastic spirals are stiffened, the dimensional stability is improved, the basic disadvantages however are not canceled. The use of diving equipment continues locked out. For devices for fire and disaster operations are such hoses because of possibly problematic at these high temperatures and can be a problem Pose security risk.

In addition to dimensional stability, those are above mentioned hoses can also be used only to a limited extent at low temperatures. The materials used in hose production, mostly rubber, cannot withstand low temperatures permanently or not at all.

The wearer must also receive information about the available supply of breathing gas. The easiest and safest way to accomplish this task is for the wearer to have a pressure gauge in the field of view, which he uses to obtain information about the pressure level in the breathing gas reservoir. Since there is generally a higher pressure level in the reservoir, conventional lines from the low pressure range are eliminated from the outset. With breathing apparatus The thermal resilience of the hoses is also important for fire or disaster operations. With diving equipment, the external pressure, the possibility of mechanical damage and possible corrosion of the hoses must also be taken into account.

Known breathing apparatus use a second one for this Hose line arranged with one in the field of view of the wearer Pressure gauge is connected. The required second line complicates the handling of the breathing apparatus. If the second line is looped around the first line, it is from damage not adequately protected. If the second line has its own protective jacket is enlarge the dimensions and weight of the hoses.

According to a suggestion in US 4,140,1 14 The supply of a breathing apparatus should take place through the combination of two lines and an additional current-carrying line, which are each designed as separate lines and are enclosed by an additional protective jacket. This design of a hose, which would in principle be usable with portable breathing apparatus, leads to correspondingly large dimensions, high weight and limited manageability.

This proposal is just a summary of the lines that are necessary anyway. The additional Coat leads to cavities and must since it is a supply line for work acts under water, additionally be perforated.

From WO 97/18 001 it is known that Breathing gas hoses can be generated from corrugated tube, that additionally with a heating element in the duct for heating the Breathing air is equipped. Instead of or in addition to the heating element, the second conduit laid inside the first conduit his. Because of the alone to be transferred Pressure information, the second line can be designed as a capillary, In any case, it must be kept separately. However, this is for safety reasons not possible. While the first conduit over a pressure reducing device breathing gas with only slightly increased pressure contains the full pressure of the breathing gas reservoir is in the second line on. Would the second conduit breaks or is otherwise damaged, a higher pressure builds up in the first duct, which leads to failure of the device to lead becomes. For safety reasons such a construction is not possible.

Laying a capillary outside the first line is also not possible. The capillary would be unprotected mechanically damaged and would represent a safety risk in the event of a leak. Farther would be the Loss of breathing gas reserve.

It is also known that corrugated pipes one increased by about 40% flow resistance have and about it acoustic side effects may also occur.

The solutions for hoses from compressed gas powered breathing apparatus not suitable, all requirements placed on such hoses to be fulfilled optimally.

Task of invention

It is therefore an object of the invention Multi-chamber tubes to suggest that do not have the disadvantages listed above, especially dimensionally stable, yet highly flexible, all in one can be used over a wide temperature range and is easy and simple to manufacture are. It is a particular object of the invention to supply hoses for compressed gas-fed breathing apparatus and methods propose to manufacture the disadvantages listed above do not have to meet existing safety standards, easy to handle and are easy and simple to manufacture.

Essence of the invention

The essence of the invention follows from the features of the claims, the description and the Embodiments. embodiments and drawings give preferred embodiments on the filing date again and restrict not the invention.

The invention is based on the knowledge that especially the so-called corrugated pipes and / or hoses unbreakable material, preferably stainless steel, in terms of compressive strength, flexibility, temperature resistance and specific weight requirements can easily meet. Further The invention is based on the knowledge that a combination of a corrugated pipe and / or hose and a second line, the designed as a capillary is suitable with regard to all existing requirements. The one at risk of breakage Capillary line is through corrugated pipes and / or hoses or additional Means adequately protected and flexibility the corrugated pipe and / or hose is not restricted. The However, the invention is not solely based on the use of corrugated pipes and / or hoses limited.

The essence of the invention is that a multi-chamber hose that contains all the lines in one unit are to be united in the same. The essence of the invention is continue in that the hose is equipped with a coupling piece is capable of all connections to be made the execution to produce a single coupling process.

The multi-chamber hose consists of at least a first line, which forms a flow channel, and a second line, which either which also forms a flow channel or is a live line.

The essence of the invention also exists in being a hose for pressure-fed breathing apparatus accomplished which, in one structural unit, contains all the lines that the respirator or on the part of the breathing gas reservoir as well as on safety or display requirements are summarized.

According to the invention, a first line the actual flow channel forms, combined with at least one other line. The additional Line can form a line channel or an electrical one Lead. Likewise, a plurality of lines with the first Line channel can be combined.

The first line consists of a homogeneous, tubular Jacket made of flexible material. This can vary depending on the application requirements Plastic or metal.

An embodiment of the first line is a so-called flexible hose, which is characterized by a variety adjacent, radially extending folds are formed.

In the preferred embodiment the first line is a so-called corrugated pipe and / or hose. The same can depend of application requirements can be either parallel or spiral corrugated. The corrugated pipe and / or hose can be made of a plastic his. However, preference is given to the high compressive and structural strength a corrugated pipe and / or hose made of metallic materials, here again preferably a corrugated pipe and / or hose made of stainless steel Steel that are made with thin walls and in connection with a suitable geometry of the shafts can be highly flexible.

The use of thin-walled corrugated pipes or hoses stainless steel guaranteed the use of the hoses to be manufactured at higher pressures and at the same time higher flexibility of the hoses. Another advantage is the corrosion resistance, which with appropriate Material selection also opposite aggressive chemicals or sea water. Regarding the dimensioning of the wall thickness, the strength properties and the wave profile can be optimized.

The second line can be used for breathing gas hoses designed as a capillary because it only has to provide information about the pressure level. At least one other line is combined with the first line. To achieve a short line length, the second line can be connected to the first Line running in parallel. Pass the first Line as already described from a corrugated pipe and / or hose, a capillary can then enter a corrugation valley of the corrugated tube and / or hose inserted and so approximately run radially around this without the flexibility of the corrugated tube and / or hose is significantly limited. By wrapping it up the diameter of the capillary line in the troughs increases Overall arrangement not.

It is also possible to use the second line as a capillary or electrical line to be placed inside the first line and into the through the wave crests to wrap formed depressions. The flow resistance of the Corrugated tube reduced and occurring acoustic side effects, such as whistling, prevented.

It is also possible, both outside and Wrap capillary or electrical lines inside. Will in Inside a corrugated tube, a capillary line pressurized Wrapped up, special precautions are taken in the event of a break Capillary line necessary. This also applies in particular to wrapping of electrical lines, provided they have current and / or voltage values that can be life-threatening.

The solution described stabilized by wrapping itself, so that fixation of the capillary is only necessary at the ends of the first line. This can by welding, soldering, gluing or shedding can be achieved.

An embodiment of the fixation is particularly advantageous, at which the height the fixation that does not significantly exceed the peak points of the wave crests and at the same time about a certain width completely fills the troughs. This is the most convenient to be achieved by soldering or Shed. This creates a cylindrical section for later attachment of coupling pieces is appropriate.

The capillary can with their Ends over the Stand the ends of the first line. They are either parallel or aligned coaxially to the central axis of the first line.

The coupling pieces used are designed to work for the first and the capillary each form a connection element. This is opposite the first line is formed a tight connection of any kind. The capillary line is soldered, pressed or potted to the coupling piece. At least the connection of the coupling piece with the first line is designed so that they also act on the hose axial forces can record.

The coupling piece has on the connection side one compatible with a coupling counterpart Outer contour. This can be of any design, provided that it is suitable establish tight and secure connections between the two lines. In particular, the coupling side can be designed according to certain connection systems be designed.

In the event that the end of the capillary line is aligned coaxially with the central axis of the first line, the coupling piece can rotate be designed symmetrically and is so easy to manufacture. The capillary line is the most protruding connection part, while the first line can be equipped with peripheral outlet openings. If the peripheral outlet openings are created by cross bores or openings, the capillary line in the center is visible. For security reasons, this can therefore be laid and / or profiled so that it is not visible in the area of the openings. A further embodiment is a connection of the capillary line in the housing of the coupling piece, wherein the continuation of this line to the centrally arranged connection element takes place via a bore made in the housing.

The arrangement described above can Depending on requirements, additional lines can be added. This can either gas bearing or electrical lines.

Is electrical in one application Energy with higher The power components can be transferred Lines run through strands his. Depending on your needs the strands are wrapped around the first line in the same way as the capillary be or run parallel to it. However, it is Signal lines, can these can also be designed as flat conductors on a carrier substrate, then electrically isolated on the arrangement described above is applied. The electrical insulation can preferably by the substrate of the conductor itself can be realized. This embodiment electrical conductor is also applicable when power transmission in the area of low currents must be done.

The use is particularly advantageous a corrugated pipe and / or hose with a two-course Profiling. Then the capillary and a further line can be arranged in the further wave valley. As well can two Capillary or two electrical lines are inserted.

Another embodiment, the particular in the transfer electrical signals can be used in the low power range, is additional to the lines arranged in the trough using the remaining ones Insert notches in the profile notches.

The arrangements described above are increasing the security and to improve manageability preferably with a protective cover Mistake. Such a protective cover can be dipped in a dispersion of suitable plastics, by postponing suitable means, by a bandage, by coating or also by injection molding.

Suitable protective covers for breathing gas hoses on diving equipment Protection should in particular be used against mechanical damage and improve deformations. For breathing gas hoses used for devices for fire and disaster response is used is additional an increased temperature resistance sure. In this case, a protective cover has been removed Silicone rubbers or plastics that remain elastic with sufficient high temperature resistance proven to be useful. It has also proven to be useful the protective cover with an inner layer of a fabric and / or mesh or the like to provide while the outer layer through one about it arranged hose is formed. With breathing gas hoses for increased temperature loads the fabric can be made of a thermally highly resilient plastic. such hoses can then be used at least temporarily up to temperatures of 470 ° K and above.

With appropriate choice of materials Is it possible, the hoses can also be used in cold areas up to operating temperatures of around 210 ° K. In particular if there is a tissue between the compact hose unit and an outer protective cover or net-like hose is arranged when deforming the Hose a relative movement between the hose and the outer shell arise, which the high flexibility of the hose even in the presence of an outer shell.

In analogy to known techniques the manufacture of hoses can the arrangement with the help of grommets and / or cuffs against the couplings be caught and connected. That way, not just one tight and secure connection made, but also damage the outer shell avoided.

The coupling piece according to the invention is so executed that it is for provide all existing lines with the necessary connection can. The coupling piece can any connection on the connection side and in particular be adapted to existing connection systems. So can the existing connections be arranged side by side, coaxially to each other or in a mixed construction. Likewise, through the shape of the coupling piece, through additional ones Components or by means of functionally associated, loose parts a fuse of the coupling piece against unintentional loosening and / or to ensure (coding) the correct connection ensured in conjunction with a compatible coupling counterpart become.

The hoses according to the invention are used not on breathing apparatus limited. she can go anywhere are used where, in addition to a volume flow, additional information about static Measured variables and / or to be transmitted electrically Signals and / or power transmission required are.

The hoses according to the invention can be carried out by the steps described below, the successive and / or simultaneous execution. First, a first line is cut to a certain length. A second line, which is preferably designed as a capillary line, is also cut to length. The second line is usually a little longer. The two blanks are then combined with one another, the projecting ends of the second line being connected to the ends of the first line. The connec tion is preferably fixed and can be done by gluing, soldering, welding or casting depending on the type of material. In the simplest case, a firm connection can also be achieved by wrapping it with twine.

In a subsequent step you can the arrangement an additional wrapping receive. This can be a cut of a hose, a net-shaped hose or be a braided hose. Likewise, a wrap with stripe Material, a dip in liquefied Plastic or rubber.

The resulting arrangement is in a further step, provide coupling pieces to be attached at the end. These are pushed onto the arrangement, the first and the second line each have a mounting hole and in connection form tight connections with the coupling part. The The first line is usually connected by pressing of the coupling piece. An alternative solution is pressing with the help of a so-called compression sleeve, such as it is generally known from hose production. For this Case has the coupling piece mostly a conical extension, that protrudes into the hole in the first line.

The second or capillary line will inserted into a hole and soldered in the same or glued.

Another embodiment of the Procedure used for the first line is a so-called corrugated pipe and / or hose. The same cannot easily be sealed with a coupling piece Form connections. It is therefore end-to-end Potting, which creates a cylindrical outer surface that seal with the coupling piece can.

Depending on which material for corrugated pipe and / or hose is used, the potting in corrugated plastic pipes and / or hoses preferably with a low-melting casting compound or Reaction resin take place while in the case of a metallic corrugated pipe and / or hose, solder with Soft solder comes into question. At the same time there can be a tight connection with the coupling piece can be achieved.

There is another embodiment of the method in that in an additional Work step in the trough a spiral corrugated corrugated tube and / or tubing the capillary line is wrapped so that it is the first line loops.

A longer length is preferably a Corrugated tube and / or hose wrapped with the capillary and the resulting assembly is available as a bundle or rod for further processing. The rough cutting takes place in a subsequent cutting operation. Corrugated tube and / or hose and capillary line are then of the same length. Subsequently the capillary is partially unwound and stretched and a section of the Corrugated pipe and / or hose separated. This will make the necessary excess the capillary reached the corrugated pipe.

There is a further embodiment of the method in that the supernatants The ends of the capillary are profiled so that the ends are coaxial are aligned with the ends of the first line. It follows yourself the opportunity the coupling piece to be designed so that the line ducts are also coaxial with each other lie. The high pressure capillary is there in the center of the coupling piece arranged, is connected first and seals better with the connection-compatible coupling counterpart as a peripheral connection.

The coupling pieces can be designed as usual on the coupling side be, with all common embodiments are realizable.

There is a further embodiment of the method in that an outer covering such as before connecting to the coupling pieces already described is applied to the arrangement. The wrapping can as described from a braid or a fabric tube consist. additionally a homogeneous plastic tube can be pulled over the fabric reinforcement become. It is irrelevant whether it is prefabricated as a semi-finished product is or generated by order process on the arrangement itself becomes.

In the preferred embodiment at the time of registration In the first step of the process, a spiral corrugated Corrugated pipe and / or hose generated and as a collar or rod for disposal posed. This manufacturing length is with the capillary or electrical forming the second line Cable wrapped, which lies in a wave trough. following the capillary or electrical line at the hose ends across from fixed the corrugated tube, depending on the existing Materials and conditions of use either by fixing Solder or shedding he follows.

The resulting assembly is then divided into the required raw lengths by a separation process, the length of the capillary or electrical line being decisive. The capillary or electrical line is then unwound in the end area to such an extent that the necessary protrusion can be reached over the end of the first line and the exposed section of the first line is separated. The capillary becomes then profiled so that the connection of both lines with a coupling piece is possible. Preferably, a coupling piece made of a solderable material is used and both lines are soldered to the same.

The second line is an electrical one Line, the first line (corrugated tube) can also be cut directly to length and the electrical wire is then wound up and cut to length become. Electrical cables are fixed at the cable ends preferably by casting compounds and / or reactive resins.

When using a corrugated pipe other materials can also be cast with meltable materials or reactive resins.

The hose is then with an envelope Mistake. The wrapping can be made from a braid or a layer of fabric (fabric tube), a hose made of flexible material or a combination of the aforementioned possibilities consist. A preferred embodiment is the combination of an inside braided or Fabric hose and an outside lying flexible hose, which of the overall arrangement if necessary necessary security against external damage gives.

The equipment is preferably used of the hose with the outer covering the attachment and fastening of the coupling pieces.

Preferably, when performing the Process corrugated pipes and / or hoses made of stainless steel and capillary lines made of copper or copper-containing alloys used. For the wrapping are preferably high temperature resistant fabrics and plastic materials used so that a permanent temperature above 370 ° K and a short-term temperature load above 470 ° K is possible. With the right choice of material, it can also be used in the cold sector up to about 210 ° K possible.

The manufactured by the methods described above hoses for one Use in compressed gas-operated breathing apparatus is therefore particularly important with breathing apparatus for disaster and fire operations Suitable, where there is always the risk that an excessive ambient temperature occurs. The hoses that withstand high temperatures are therefore connected with appropriately adapted breathing apparatus in such cases suitable.

embodiments

The invention is explained in more detail below on the basis of 8 exemplary embodiments which are described in 1 to 7 are shown.

Embodiment 1

In this embodiment, shown in 1 , A simple embodiment of the invention is described.

A first line ( 1 ) is in scope ( 2 ) through a second line ( 3 ), designed as a capillary line, added. The end of the capillary line ( 4 ) towards the end ( 5 ) the first line ( 1 ) about. A coupling piece ( 6 ) is pushed onto the end of the hose and makes the connections of the first ( 1 ) and the second line ( 3 ) ago. The first line ( 1 ) comes up against a covenant ( 7 ) inside the coupling piece ( 6 ) while the second line ( 3 ) in a hole ( 8th ) runs to the side of it. The capillary is connected to the coupling piece ( 6 ) in the hole ( 8th ) soldered, while the first wire ( 1 ) a tight connection made with the usual means is sufficient. The arrangement from first ( 1 ) and second line ( 3 ) is through an outer shell ( 9 ), whereby in 1 a braid is shown. Likewise, this can be a fabric tube pushed over, a homogeneous tube, an extrusion coating or the like.

The coupling piece ( 6 ) can be designed on the connection side to be compatible with the usual means for a coupling counterpart. In the 1 The design shown is only an example. In this respect, the connection points can be arranged next to one another or coaxially with one another.

Embodiment 2

This embodiment and 2 describe a form of the invention which has improved properties compared to embodiment 1.

The first line consists of a corrugated pipe and / or hose ( 10 ), which can be parallel or spiral corrugated. Over the summit points ( 11 ) of the corrugated pipe and / or hose ( 10 ) a capillary line runs ( 12 ). The arrangement is characterized by an outer shell ( 13 ), as described in embodiment 1. Corrugated pipe and / or hose ( 10 ) and capillary line ( 12 ) are at intervals of several wave crests in the area of the wave crests ( 11 ) connected with each other. The capillary line ( 12 ) fixed and their load or the risk of damage prevented. The fixing points ( 14 ) and ( 15 ) with a not fully hardening material. It is also possible to firmly connect the capillary line by soldering or welding.

The shape of the hose described in this exemplary embodiment has significant advantages over the one described above. The high-strength corrugated pipe and / or hose can have thin walls be guided and thus offers the possibility to minimize the dimensions of the hose. Furthermore, the increased strength can be used to transport the media with increased pressure, which in turn can minimize the dimensions. The flexibility of the corrugated pipe and / or hose ( 10 ) is very high and can be optimized in connection with the profile geometry, wall thickness and the required pressure or flow parameters.

Embodiment 3

In this embodiment, a preferred embodiment of the line end is described. 3 shows this embodiment.

As already described, the capillary line runs ( 16 ) along the first line, which here is a corrugated pipe and / or hose ( 17 ) is shown. At the end ( 18 ) the first line is the capillary line ( 16 ) committed to the same. The connection point ( 19 ) is preferably a fixed connection. The protruding end ( 20 ) the capillary line ( 16 ) is due to the bends ( 21 ) and ( 22 ) profiled so that it lies approximately in the area of the central axis of the first line. The two ends of the line are then connected with an in 3 Coupling piece not shown completed, this forms tight connections to both lines.

Embodiment 4

In this embodiment, an improved form of the above-described embodiments is explained. 4 shows the main features. A corrugated pipe and / or hose ( 23 ) is shortened to a specified length in a spiral corrugated version. In the wave valley ( 24 ) is a capillary line ( 25 ) inserted and by continuous wrapping in the trough ( 24 ). At the end ( 26 ) of the corrugated pipe and / or hose ( 23 ) the capillary line ( 25 ) with its end piece ( 27 ) and is characterized by the bends ( 28 ) and ( 29 ) shaped so that it is approximately coaxial to the central axis of the corrugated pipe and / or hose ( 23 ) lies.

The end of the corrugated pipe and / or hose ( 23 ) with the inserted capillary line ( 25 ) is in one area ( 30 ) with an agent ( 31 ) filled out, which on the one hand fixes the capillary line ( 25 ) and on the other hand filling the wave valley ( 24 ) serves. Filling with solder is preferred, but a suitable casting compound or casting resin can also be used. The middle ( 31 ) forms a cylindrical jacket of limited length ( 32 ) compared to the one in 4 Coupling piece, not shown, forms an additional sealing surface. To improve the seal, after applying the agent ( 31 ) the outer diameter is machined.

Embodiment 5

In this embodiment, a design of the hose is described, which can perform other functions in addition to the shapes described above. 5 shows the basic arrangement.

A double-corrugated corrugated tube and / or hose ( 33 ) takes in his trough ( 34 ) a capillary line ( 35 ) on. In the wave valley ( 36 ) is a live cable ( 37 ) wrapped up. This can transmit electrical signals or ensure power transmission to a limited extent. It is also possible to replace the capillary line ( 351 to additionally wrap a single line. Likewise, that corrugated pipe and / or hose ( 33 ) form the second conductive connection. Another option is to replace the line ( 37 ) through a second capillary.

With an additional coating ( 38 ) the arrangement is covered and additionally fixed.

Inside the corrugated pipe and / or hose ( 33 ) is a capillary line ( 39 ) in the wave crest ( 40 ) and a live line ( 41 ) in the wave crest ( 42 ) wrapped up. In particular when using live cables, even with a corrugated pipe and / or hose that is corrugated only in a single 33 ) Ground and signal line or one or more capillary lines are laid.

If corrugated pipe and / or hose ( 33 ) used as a mass, there are further possible combinations.

Embodiment 6

In this exemplary embodiment, the construction of a hose with additional functionality compared to that described in exemplary embodiment 5 is explained. 6 shows the structure of the hose in cross section.

The centrally arranged first conduit is in turn passed through a corrugated pipe and / or hose ( 39 ) educated. In the wave valley ( 40 ) is a capillary line ( 41 ) wrapped up. On the wave mountains ( 42 ) there is also an insulating support ( 43 ), which in turn has several conductor tracks ( 44 ) owns. On its outside ( 45 ) is an insulating cover ( 46 ) are available which, with appropriate design of the conductor tracks ( 44 ) and the other components can also be omitted.

The arrangement described is encased by 47 ), made of textile material and / or an elastic plastic sheath, protected against mechanical influences.

In the 6 Coupling pieces, not shown, are designed so that, in addition to connecting the two gas-carrying lines, they are also able to produce electrical connections.

Embodiment 7

In this embodiment, the preferred embodiment of the construction of a hose is explained. 7 shows this hose in cross section. A first line consisting of a corrugated pipe and / or hose ( 48 ) with a capillary line ( 49 ) wrapped. The capillary line ( 49 ) lies in the wave valley ( 50 ) of the corrugated pipe and / or hose ( 48 ). A net-like hose ( 51 ) pulled, which does not reduce the elasticity of the arrangement.

The outer covering is a soft, elastic tubular jacket ( 52 ) over the net-like hose ( 51 ) pushed.

This structure allows a relative movement between the pair of lines and the outer sheath. The thick-walled coat ( 52 ) protects the pair of cables from mechanical influences that can occur during rescue operations.

The net-like hose ( 51 ) consists in a preferred embodiment of a coarse thread, which in turn is made of a high temperature resistant plastic, such as PTFE.

The coat ( 52 ) consists of a highly elastic plastic, preferably of silicone rubber and is therefore also resistant to high temperatures.

One using a corrugated pipe and / or hose ( 48 ) made of stainless steel, a capillary line ( 49 ) A hose constructed from a copper-containing alloy and cladding components as described above can be used at least briefly at temperatures of 470 ° K and above.

Embodiment 8

In this embodiment is a method described for the manufacture of a hose as it essentially that in the embodiment 7 corresponds to described. Those described in the other exemplary embodiments Are hoses can be produced essentially using the same method, work steps are added or omitted in individual cases.

In a first step a spiral corrugated corrugated pipe and / or hose generated and then on Cut length. After that becomes a capillary in the trough of the corrugated tube and / or hose wrapped, which is chosen in dimensions so that it is perfect can be fitted into the trough. After wrapping up the capillary line to length cut, the ends of the capillary preferably over the Extend the ends of the first line. The ends of the capillary on the corrugated tube and / or -fixed hose, preferably using a soldered connection. The setting can also be made before the final setting of the length of the Capillary line done. The protruding ones Ends then become dependent from the design of the coupling pieces to be used in the brought necessary location. With the necessary alignment and / or Profiling can be an additional Bending operation is carried out, which additionally profiles the end of the capillary.

Then a section of a net-like tube is placed over the Arrangement pushed. In the next step, the Arrangement of the outer protective jacket as a section of appropriate length postponed.

The resulting arrangement is in a final Work step provided with separately generated coupling pieces that are known Be tightly connected to the hose ends. The first line preferably sealed by pressing, while the Capillary line is preferably soldered in the coupling piece.

The procedure described can be based on can be varied in different ways. For example, a corresponding one Corrugated pipe and / or hose are obtained as semi-finished products, being the first The step of cutting a usable length is carried out. Furthermore can after establishing the pair of cables and defining and / or profiling a coupling piece is already attached to the ends of the capillary at one end become.

Likewise, the wrapping of the Hose already be prefabricated as a unit by the net-like Braid is already drawn into the jacket and the assembly only cut to size and pushed onto the line unit must become.

Claims (33)

Multi-chamber hose, characterized in that a first line is connected to at least one further line, all lines are terminated at the respective ends with a common coupling piece and in which the coupling pieces with compatible coupling counterparts connect all the lines during a connection process and in the case of the lines and coupling pieces are connected to a unit. Hose according to claim 1, characterized in that the first line consists of a homogeneous, tubular jacket, preferably by a multiply folded and / or compressed one Pipe and / or hose, again preferably through a corrugated pipe and / or hose or a hose is formed. Hose according to claim 2, characterized in that the corrugated pipe and / or hose parallel or spiral corrugated accomplished is. Hose according to claim 3, characterized in that the corrugated pipe has two courses is spiral corrugated. Hose according to one of claims 1 to 3, characterized in that the jacket of the first line made of plastic and / or metal, preferably made of steel, again preferably made of stainless steel Steel, is. Hose according to one of the preceding claims, characterized characterized in that another (second) line on the circumference of the Sheath of the first line is arranged and approximately parallel to this runs. Hose according to one of claims 2 to 4, characterized in that that the further (second) line over the summit points of the wave crests runs. Hose according to one of claims 2 to 4, characterized in that that the other (second) line is in the trough and the first Radially wraps around the cable. Hose according to one of claims 2 to 4, characterized in that that the further line runs inside the first line and inserted radially into the cavities formed by the wave crests is. Hose according to claim 8 or 9, characterized in that the pipe is a capillary pipe. Hose according to one of claims 6 to 10, characterized in that that the further (second) line at least at the end points of the first line firmly connected to the same, preferably welded and / or soldered and / or glued and / or potted. Hose according to one of claims 6 to 11, characterized in that that the second line with its end pieces the end pieces of the towered over the first line. Hose according to claim 12, characterized in that the protruding Tails of second line to the first line are aligned coaxially. Hose according to one of claims 6 to 13, characterized in that that the first and further lines with their line ends through a common coupling piece and the coupling piece for every the existing lines a connection point to a compatible Coupling counterpart formed. Hose according to one of the preceding claims, characterized characterized in that at least one further line is electrical Line is. Hose according to claim 15, characterized in that at least one electrical line is arranged on at least one flat support is, the same runs axially to the first line and radially in the transverse direction around the first and possibly further lines. Hose according to one of the preceding claims, characterized characterized in that it has an outer shell. Hose according to claim 17, characterized in that the outer shell from a fabric layer and / or a homogeneous elastic layer and / or a fabric hose and / or a braid and / or one Bandage exists, preferably that the outer cover has a two-layer structure made of a fabric layer and a homogeneous elastic hose is, again preferably, that the overall arrangement is temperature resistant of about 210 ° K up to about 470 ° K Has. Hose according to claim 18, characterized in that the outer shell on their Ends covered by a grommet is. Hose according to claim 19, characterized in that the outer shell on their Fixed ends between the first duct and a grommet is. Hose according to one of claims 19 or 20, characterized in that that the spout with the coupling piece the outer shell fixed. coupling for one Hose according to one of the preceding claims, characterized in that that the same for the first and each additional line is a connection element for connection with a compatible coupling counterpart. coupling according to claim 22, characterized in that at least the first and another line form a line channel and the same in the coupling piece are arranged coaxially to each other. Hose according to one of the preceding claims, characterized characterized in that it is used as a hose for a compressed gas powered respirator place. Hose according to one of the preceding claims, characterized in that the same by successively or simultaneously out led work steps is generated, in a first step a section of a first line is generated, in a subsequent step a section of a second line is generated, then both are combined with each other, the arrangement then at the front ends by a coupling piece, which the connection points trains, is supplemented. Hose according to claim 24, characterized in that in a preceding step the first line forming section formed as a corrugated tube and / or hose has been. Hose according to claim 25 or 26, characterized in that the second line radially into an external wave trough spirally executed Corrugated tube and / or hose is introduced. Hose according to claims 25 to 27, characterized in that that the second or another pipe radially into the profiling of a wave crest introduced in the conduit of the first conduit is. Hose according to claim 26, characterized in that the second pipe with its protruding ends at the ends the first line is fixed. Hose according to claim 27, characterized in that the protruding Ends of the two lines coaxial to the central axis of the first line be aligned. Hose according to one of claims 27 to 29, characterized in that that the ends of the first and second lines are tight with the coupling pieces get connected. Hose according to one of claims 22 to 29, characterized in that that the arrangement is supplemented by an additional shell, which consists of a slid on Hose and / or a pushed-on braid and / or a bandage and / or an elastic mass remains. Hose according to claim 31, characterized in that as an outer shell in one The first step is a fabric tube, in a further step a homogeneous, elastic hose is applied.