FI78168C - FOERBINDNINGSSTYCKE. - Google Patents

Description

78168

CONNECTOR - FÖRBINDNINGSSTYCKE

The invention relates to a connecting piece for connecting separate pipes to a common manifold. In particular, the invention relates to a connecting piece for connecting pipes made of solderable material to a common manifold for solder connection.

It is known to connect two or more separate tubes to a manifold by assembling the tubes 10 to be connected inside the manifold and soldering the tubes to each other and to the manifold. It is further known to first connect the pipes to a perforated round plate, which is then connected to a common manifold by its outer circumference.

15 When making the above-mentioned joints by soldering, the capillary effect necessary for soldering remains weak due to the large solder spacing used in the joining methods. Furthermore, e.g. when soldering a round plate to a manifold, the solders of the pipes to be connected to the round plate 20 often overheat and melt open. Further, due to the large solder intervals, the solder consumption is high; at the same time, soldering takes a lot of work time. Furthermore, when a round plate is used in pipe joints, the soldering of the pipes to be connected to the plate 25 and the soldering of the plate to the manifold have to be done in different work steps, which also often causes previously soldered joints to melt. Due to several work steps, joining work is cumbersome and time consuming.

Due to the mentioned disadvantages, in particular the inoperability of the capillary-30 phenomenon and the melting of previously soldered joints, leaks often form in the joints, which necessitates repair.

It is an object of the present invention to obviate the above drawbacks. In particular, it is an object of the invention 35 to provide a novel connecting piece for connecting different pipes to a common manifold, which connector makes the joining work, in particular the soldering work, easier and the working time shortened. It is a further object of the invention to provide a connecting piece which, when used, makes the joint even stronger and better without leaking 5 to an earlier extent.

For aspects of the invention, reference is made to claim 1.

The invention is based on a special tubular connecting piece comprising a special collector part 10 shaped mainly according to the outer circumference of the group of pipes to be connected, and a connecting part shaped according to the collector pipe.

Thanks to the invention, in particular when the pipe wall of the collector part is shaped corrugated corresponding to the outer circumference of the group of pipes to be connected 15, separate connecting pipes can be connected, i. solder to the collector as a group easily and quickly. The soldering intervals become small, and the capillary effect necessary for soldering becomes as strong as possible. The connection of the pipes to the connecting piece 20 can be carried out in one operation quickly and efficiently. There are no leaks in the joint to the previous extent, which means that the need for repair work is significantly reduced. The joints cannot be opened as a melt due to the connection work of the processor-25 in one operation when connecting the pipe group to the connection piece. The connection of the connecting piece to the manifold is performed in the same way as a conventional pipe connection, i. there are no problems with it. In addition, due to the tubular shape of the connector, the connector of the connector, i.

30 The junction in the manifold takes place at one end of the connecting piece relative to the group of pipes connected to the connecting piece, whereby excessive heating of the previous solder and melting of the solder cannot occur in connection with the latter solder.

35 The connector can be made of any material. Particularly preferred materials are: materials used in connection with soldering, such as 3,78,168 copper and copper alloys. The connector can be made by shaping, e.g., forcing, pressing, pressing, casting, or generally by any method of preparation.

5 The pipe wall of the collector part of the connecting piece may form several corrugations, e.g. 2, 3, 4, 5, 6 or more, corresponding mainly to the shape of the outer circumference of the pipe group to be connected.

The invention will be described in detail by means of 10 embodiments with reference to the accompanying drawing, in which Figures 1-3 show a connecting piece according to the invention seen from its end, partially cut away from the side and opened from the side with the pipe group connected to the connecting piece.

The connecting piece 1 according to Figures 1-3 comprises a collector part 4 for connecting separate pipes 2 to the connecting piece and a connecting part 5 for connecting the connecting piece to the collector pipe 3. The collector part 4 is shaped according to the outer circumference of a group of 20 separate pipes 2 to be connected, i. in the present application, substantially conforming to the outer circumference of the array of seven tube formations. The pipe wall 6 of the collector part 4 is thus corrugated, and the number and shape of the waves correspond to the shape of the outer circumference of the group 2 of pipes to be connected. Figure 1 shows an end view of the connecting part collecting part 4, which forms 6 waves corresponding to the shape of the outer circumference of a group of seven separate pipes to be connected in its main features.

The connecting part 5 is shaped according to the manifold 3 to be connected to the connecting piece. In the present embodiment, the connecting part 5 is narrower in diameter than the collector part. When connecting separate pipes 2 and 3 to a connecting piece according to this, the pipes 2 (Fig. 3) are pushed into the collector part 4 and soldered in a known manner. Finally, the connecting part 5 is connected to the manifold 3 in a manner known per se.

78168 4

The connecting piece shown in Figures 1-3 is made of a copper alloy by pressing it into the respective shape, i.e. to form a narrower connecting part, a conically connected and expanding intermediate part 7 and a collector part connected to the latter and shaped in the above-mentioned manner.

The exemplary embodiment is intended only to illustrate the invention without limiting it in any way.

10

Claims (3)

5,781 68 A connecting piece (1) for connecting separate pipes (2) to a common manifold (3), the connecting piece comprising a manifold part (4) shaped mainly according to the group of separate pipes (2) to be connected, and a connecting part (5) shaped according to the collector pipe (3), characterized in that the pipe wall (6) of the collector part (4) is shaped 10 corrugated, the number and shape of the corrugations mainly corresponding to the outer circumference of the group of pipes (2) to be connected. Connecting piece according to Claim 1, characterized in that the pipe wall (6) of the collector part (4) forms two or more corrugations. Connecting piece according to Claim 1 or 2, characterized in that the connecting piece (1) is made of a solderable metal pipe, e.g. copper or copper alloy, by forming one end of the pipe into a collector part (5), e.g. by shrinking and forming the other end of the pipe ( 4) the wall is wavy.