DE29805381U1 - Pipe connection for connecting a supply pipe section of a gas house connection to a line blocking element - Google Patents

Description

Utility model application

Mr Siegfried Kuper, 4.Südwieke 65, 26817 Rhauderfehn

Pipe connection for connecting a supply pipe section of a gas house connection with a line shut-off device

The invention relates to a pipe connection for connecting a supply pipe section of a Cas house connection that can be passed through an external wall of a building with a gas pipeline to be laid inside the building, which comprises a pipeline locking device, preferably a ball valve.

With standard gas house connections, a supply pipe section is led through an outer wall into the interior of a building, for example a basement. The main line shut-off device of the gas line is usually located within this interior and the gas pipe runs from there via a gas meter to the gas heating system in the house or other gas consumers, for example gas stoves or the like.

The pipe connection between the supply pipe section and the line shut-off device that follows relatively shortly thereafter is usually made by pipe sections with flange connections, but this not only requires a relatively large, wasteful volume of space, but such connections are also very cumbersome to handle, especially for necessary maintenance work or the like.

The invention is therefore based on the object of further developing a pipe connection of the type mentioned at the outset with a view to saving space and improving handling.

This object is achieved according to the invention by an adapter pipe piece for the direct connection between the supply pipe section guided through the outer wall and the line blocking device, wherein the adapter pipe piece has external threads at both ends for screw connection with union nuts of the supply pipe section and the line blocking device and has an inner diameter that narrows from the supply pipe section to the line blocking device.

The pipe connection according to the invention is thus advantageously characterized by an adapter pipe piece that ensures the necessary inner diameter constriction and can at the same time be used directly between the supply pipe section and the line blocking device using simple screw connections by inserting corresponding external threads into corresponding union nuts, whereby the adapter pipe piece virtually disappears for a large part of its length in the areas of the supply pipe section and the line blocking device, so that the adapter pipe piece hardly requires any space of its own, in particular no special volume, but is essentially flush with the existing line sections. The adapter pipe piece can be easily unscrewed for any necessary maintenance work and then used again for a new connection. An inner cone can be provided in the adapter pipe piece to narrow the inner diameter, which can also be used to seal between the adapter pipe piece and the supply pipe section. In addition, in the area left free between the union nuts

A wrench size must be provided on the adapter pipe section with which the adapter pipe section can be gripped, for example with a wrench.

A particularly precise and at the same time stable production of the adapter pipe piece according to the invention is possible by machining it from one piece, e.g. as a turned or milled part.

An embodiment from which further inventive features emerge is shown in the drawing. It shows:

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Fig. 1 is a kind of exploded view of a Cas house connection area with an adapter pipe piece according to the invention in a partially sectioned
Side view and -

Fig. 2 the adapter pipe section according to Fig. 1 alone in longitudinal section in an enlarged
Depiction.

Fig. 1 shows an end section of a supply pipe section 1 that can be led through an external wall into a building so that a union nut 2 is located inside the building. This supply pipe section 1 is connected via an adapter pipe section 3 to a ball valve 9, which also has a union nut 8.

The adapter pipe section 3 has external threads 4 and 7 at both ends, which fit the union nuts 2 and 8 of the other two components.

Inside the adapter pipe section 3 there is an inner cone 5, via which the inner diameter of the adapter pipe section 3 narrows in the direction of the ball valve 9 and in whose area, for example, a sealing ring can be inserted, which interacts with a corresponding sealing edge of the supply pipe section 1.

In addition, the adapter pipe section 3 has a wrench size 6 in its middle area, which is also accessible after screwing with the union nuts 2 and 8.

Fig. 2 shows the adapter pipe section 3 again individually in a longitudinal section in an enlarged view. The same components are designated with the same reference numbers as in Fig. 1.

Claims (3)

Expectations: t. Pipe connection for connecting a supply pipe section of a gas house connection that can be passed through an external wall of a building with a gas pipeline to be laid inside the building, which comprises a line shut-off device, preferably a ball valve,
marked by an adapter pipe piece (3) for direct connection use between the supply pipe section (1) guided through the outer wall and the line blocking device (9), whereby the adapter pipe piece (3) has external threads (4,7) at both ends for screwing the connection to union nuts (2,8) of the supply pipe section (1) and the line blocking device (9) and has an inner diameter that narrows from the supply pipe section (1) to the line blocking device (9). 2. Pipe connection according to claim 1, characterized in that the inner diameter of the adapter pipe section (3) is narrowed by an inner cone (5) which can be equipped with a sealing element for cooperation with a sealing edge of the supply pipe section (1). 3. Pipe connection according to claim 1 or 2, characterized in that the adapter pipe piece (3) has a wrench size range (6).