DE2600808A1 - PIPE CONNECTION - Google Patents

Description

DR. BERG DRL-ING STAPF DIPL.-ING. SCKWABE DR. DR. SANDMAIR 26008

PATENTANWÄLTE 8 MÜNCHEN 86, POSTFACH 86 02

Attorney's file 26 756 "*," m 1375

Roberto Assandri 26020 Madignano (Cremona) / Italy

Pipe connection

The present invention relates to a pipe connection in particular for connection to wash basins, lavatory basins, Bidets and similar by means of the usual inlet and outlet pipes,

Immediately to connect the supply and discharge pipes for hygienic facilities of the aforementioned type Usually chrome-plated pipes are used, which are attached directly to the fixed pipes of the installation, usually to lead pipes

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be soldered, the soldering point mostly with the wall or in the vicinity of which it meets, so that it means a cover plate or the like is provided; in practice, this soldering requires a corresponding cutting off of the lead pipe protruding from the wall or flush with the wall; the expansion of the lead pipe mouth by means of suitable Tools to create a conical outward mouth into which the end of the chrome-plated tube is inserted can; the removal of the chrome plating at the point of the soldering on the one hand and the scraping out of the inner surface on the other of the lead pipe for the purpose of removing the non-solderable oxidized areas, so that the bare underneath Metal appears; the soldering between the outer surface of the chrome-plated tube and the funnel-shaped expanded surface of the lead pipe, usually using a flame of liquid cylinder gas, this brazing using of pickling and deoxidizing agents takes place and use of means to evenly distribute the solder. It is therefore a lengthy work process that are quite cumbersome and the use of a soldering flame with all the disadvantages of transporting a gas cylinder and the require appropriate tools at the work site. In addition, this connection method has serious disadvantages in the event of a blockage in the pipes, which is known to result from foreign bodies falling into the drain, for example of tube closures, hairpins, hair clips and the like is quite common.

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In order to remedy these shortcomings, the present invention seeks the creation of an extremely simple device, which largely consists of two clampable parts and the There is an intermediate layer of a seal, one of the parts being axially attached to one of the two pipes to be attached is, with the seal on the one hand on the expanded inner surface of the rigid lead pipe and on the other hand on the The outer wall of the pipe to be attached acts.

It is therefore obvious that with the device according to the invention, any soldering and thus all additional corresponding measures are omitted, while at the same time the device at any time for the purpose of internal cleaning and possible replacement of the hygienic systems can be removed.

The present invention will be made clear from the following description made easier to understand, which is only to be assessed by way of example, with reference to the Figures of the attached drawing, in which:

Fig. 1 in section two by means of the device according to the invention shows composite tubes;

Fig. 2 is an exploded perspective view of the device shows forming parts and the pipes to be assembled;

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fig. 3 ui-ί 4 im ScI-ll ^ 'u swei modifications of the erfindungsgeEEiir. ^ 7 “show the direction.

Sine Torrichtung invention consists primarily from EiRx ~ 3i ΐ Iansch-1, which has a circumferential rim 2 is integral with eini-r Z ^r T ~: has iz siit stvii-f tapered surface 3, the inside sir.e S ,,;..: cl ^ clir: ^ g 4- ζ it has a diameter which corresponds significantly to the outer diameter of the rigid lead pipe 5. The puddle 1 is placed on las Hohr 1 before its mouthpiece, marked 5 ', is expanded outwardly in a funnel shape with the aid of known and customary tools; the widening of the mouthpiece 5 ¹ causes the splash 1 to be held on the drill 5, since the frustoconical rim 3 rests on the outer surface of the widened mouth 5 '.

The Yorrichtung according to the invention is provided with a second puddle , which is designated as a whole with 6 and also consists of a round ring 7, which is formed in one piece with a frustum ksgeligen ring 8, which has a round boring looii 9 on the inside, which is a decisive the outer diameter of its connected Eohrs IO corresponding diameter be-Sd ¹ SSt ₉ ad its outer side usually. Yerchromt is · The IFLc ^ isohe% wsS, β can be interrelated by means of two or more Z '.'. I '.- süral' - 'ii ' üt Terbisiadesi. - ^ earth ^ welons iuroä. appropriate, be carried out in "Ic :: Zi" Siüksänizeji 2 and 7 bores provided, * 2? s ± ä ± Q z shafts of the screws or nuts usual vorauge-

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wise flights isohrauben 12 can accommodate, which latter can be tightened by hand without the aid of tools; after the flange 2 is usually in contact with the wall in line with or close to the wall, so that it would be extremely inconvenient to use tools for holding the screw heads 11 to start, the holes 13 are provided according to the invention on the plan of square shape or otherwise polygonal shape in such a way that a corresponding point 14 at the beginning of the shaft of the screws 11 for receiving and non-rotatable mounting is provided.

According to the invention, a seal is inserted between the flanges 1 and 6, which is designated as a whole by 15 and has an inner cylindrical surface 16, the diameter of which largely corresponds to the outer diameter of the pipe 10, and two outer diameters 18 and 19 »which are frustoconical, with the larger one common part and bevels or better with an angle at the upper end of the cone, which does not necessarily have to be the same; In particular, the bevel of the frusto-conical surface 18 is as close as possible to or equal to the bevel of the inwardly expanded mouth 5 ¹ , while the inclination of the frusto-conical surface 19 preferably corresponds to the bevel of the frusto-conical rim 8 of the flange 6.

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The method of operation of the device according to the invention results from the preceding description and can be briefly summarized as follows: the flange 1 is arranged axially to the pipe 5 and attached to it, as described above, to achieve the funnel-shaped expansion of the mouth 5 '; then the tube 10 is pushed into the flange 6 and then into the seal 15 until the mouth of this tube comes to rest on the inner surface of the tube 5; The two planes 1 and 6 are screwed together by means of the wing screws 12 and the corresponding screws 11, or rather the flange 6 is screwed to the flange 1, because the latter remains axially connected to the rigid tube 5. In this procedure, the frustoconical surface 18 of the seal 15 is squeezed against the widened point inside the mouth 5 ^{1 of} the tube 5 and the cylindrical inner wall 16 of the seal 15 is braced against the outer wall of the tube 10 »after this effect is obviously through the on the frustoconical wall 8 of the flange 6 against the corresponding frustoconical surface 19 of the seal 15 is applied pressure.

According to a possible modification of the invention (shown in Figure 4), the two flanges 1 and 6 are simply by means of a total of 20 designated sleeve replaced, which is provided with a round rim 21 with a round hole has a diameter that is largely that of the

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Rigid Sleirahr · = ζ- corresponds, ve these cliffs can be seen with an internal thread 22 ", onto which a S-ewiziäepfropfen 23 ay» f can be screwed, which is provided with an internal opening, which may correspond to the outer diameter of the Scares 10 Has a diameter, whereby the plug is provided with a frustoconical head surface 2 ^ . R. £, cii. To sow , with bores 24 or similar means being provided to enable the plug 23 to be rotated by means of tools or in the opposite direction to allow urine, to be held during the screwing-on movement, which can be achieved by acting on the sleeve 20; in this case, too, the intermediate layer of the seal 19 is provided, which cooperates with the frustoconical surface 18 on the inner wall of the widened mouth 5 'of the tube 5 and with the frustoconical Pläohe 19, which rests on the Btumpf- • conical Hache 25 of the plug 23 in such a way that the usual blocking of the cylindrical surface e 16 of the seal against the outside of the drill β 10 takes place.

Jig. 3 shows a possible modification according to the invention, which is similar to that of the description with reference to Jig. 4 is similar, except that the Xuffe 20 vmä d * M ΜΦτ 5 «is used in Plan oh 30, similar to the Planeoh 1j described below.

1) to avoid damaging the outer wall of the Tube 5 during the rotation of the sleeve 20;

2) Possibility of using sleeves 20 and plugs 23 The same dimensions also for tubes 5 of other diameters, simply using flanges 30 with other ones Bore diameter (so suitable for pipes 5 of different diameters) and with the outer diameter of the Ring corresponding to the inner diameter of the sleeve 20.

There are some peculiarities of the device according to the invention to be emphasized: the flanges 1 and 6 "have holes with mutually different diameters (mainly the outer diameter of the pipe 5 and the inner diameter of the pipe 10 accordingly), so that when used on pipes of different diameters, interchanges with one another possible are; in all of the modifications that have been described, a single seal 15 has been provided, which causes two separate seals, one on the inner wall of the lead 5 pipe and the other on the outer wall the pipe 10 to be connected; according to the invention, this seal can be made in two or more parts, each part fulfilling a separate function.

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Obviously, the materials used can as well as the individual forms of training can be arbitrary depending on the special requirements and uses.

Although only a few exemplary embodiments of the invention have been described, it will be easy for those skilled in the art fall to work out numerous changes and modifications, all of which as falling under the scope of the invention are to be seen.

- Patent claims -

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Claims (9)

Patent claims: 1). Attachment device for pipes and in particular pipes of different types Features and / or diameter, characterized in that two parts that can be clamped together are provided, of which at least one engages axially on one of the pipes to be connected, with between the two Parts at least one seal is used. 2) Yorrichtung according to claim 1, characterized in that the tension between the two parts at the same time the compression of the seal or seals on the one hand against the inner wall and / or mouth of one of the pipes and on the other hand caused against the outer wall of the other pipe. 3) Device according to claim 1, characterized in that the axial connection between one of the clampable parts and a pipe by means of a funnel-like expansion, thus expansion to the outside of the bathing area and the mouth of one of the pipes takes place. 4) Device according to the preceding claims, characterized in that the two can be braced together Parts are essentially two puddles, each of which 609829/0662 - 11 - one consists of a "round wreath" that is integral with an inner frustoconical ring is formed, which the latter ends with a central hole. 5) Device according to claim 4, characterized in that the round inner bores of the two planes are decisive correspond to the outer diameters of the pipes to be connected and therefore different diameters from one another could be. 6) Device according to the preceding claims, characterized in that the seal in question is decisive consists of a single piece of deformable material, with a cylindrical inner wall largely of one diameter corresponding to one of the pipes to be connected and with a frustoconical opposite outside with common Floor, the upper angle of each of these frustoconical surfaces can be different and in particular one of the flanges may be equal to the top angle of the frusto-conical surface while the other largely corresponds to the central apex of the expansion formed on one of the tubes. 7) Device according to the preceding claims, characterized in that the two parts largely consist of one - 12 609829/0662 A socket with an internal thread, on which a threaded pin can screw on, with an axial bore of a diameter, which corresponds to the outer wall of one of the tubes, and with a frustoconical head surface, which corresponds to the one in question Seal or the seals in question can act. 8) Device according to claim 7 _9, characterized in that the cup-like part in question is supported axially with one of the tubes at the funnel-shaped mouth, with the interposition of flanges, consisting of a round ring, which is formed in one piece with an inner frustoconical ring and central bore, which the latter has a diameter which largely corresponds to the inner diameter of the pipe on which the puddle in question is attached, the outer diameter of its round ring largely corresponding to the inner diameter of the cup-like part. 9) Device according to claims 1 to 4 »characterized in that the two flanges together by means of screws and Wing screws are connected, which are evenly distributed and act on the round wreaths in question, square or polygonal bores can be provided on at least one flange in order to avoid them the rotation of the screws, which have a corresponding section on the shaft. 609829/0662