DE29823158U1 - Terminal block - Google Patents

Description

PATENT ATTORNEYS

Dipl.-Ing. A. Wasmeier Dipl.-Ing. H. Graf

Authorized before the European Patent Office + Trade Mark Office · Professional Representatives before the European Patent Office + Trade Mark Office

Patent Attorneys PO Box 10 08 26 93008 Regensburg

German Patent Office
and Trademark Office
Zweibrückenstr. 12

80297 Munich

D-93008 REGENSBURG P.O. BOX 10 08 26

D-93055 REGENSBURG GREFLINGERSTRASSE 7

phone

fax
E-mail

(0941)79 20 (0941)79 20 (0941)79 51 wasmeier-graf @t-online.de

Your sign
Your Ref.

Your Message Your Letter

Our Ref.

P/g 18,706

Date
Date

22 December 1998 gr-kar

Applicant:

Ludwig Penzkofer Gartenstrasse 4 94339 Leiblfing

Title:

Connection block

Accounts: Bayerische Vereinsbank (bank code 750 200 73) 5 839 Postgiroamt München (bank code 700 100 80) 893 69-801 Place of jurisdiction Regensburg A18706.DOC

Connection block

The innovation relates to a connection block according to the generic term Protection claim 1.

Connection elements or connection blocks for central heating radiators are known per se (DE 295 05 443), whereby the known connection block is used to connect a central heating radiator and has the advantage that the heating can be installed after plastering, without any further plastering or masonry work being required after the heating has been installed.

The aim of the innovation is to demonstrate a connection element with which it is particularly easy to install a control valve on a building wall, especially on an underfloor heating system, even after plastering.

To solve this problem, a connection block is designed in accordance with the protection claim. Further developments of the innovation are the subject of the subclaims.

The innovation is explained in more detail below using the figures and examples of implementation. They show:

Fig. 1 shows a simplified partial section through a building wall and through a connecting element according to the innovation;

Fig. 2 shows a section through the connecting element in individual representation; Fig. 3 shows the connecting element of Figure 2 in front view; Fig. 4 shows a further embodiment of the innovation in a partial representation similar to Figure 3.

In the figures, 1 is the floor of a building, for example a residential and/or office building, and 2 is an interior wall of the building. On the upper side of the floor 1 and below the floor 3 laid on this upper side, an underfloor heating system 4 is provided, which in a known manner consists of a

The floor 3 consists of a plastic pipe 4' laid in a snake-like manner, through which the warm water from the heating system flows and which is connected at one end via a control valve 5 to the flow and at the other end directly to the return of the heating system or a pipe distributor of this system (not shown). The control valve 5 is located on the inner wall of the building at such a height that with this control valve 5, which responds to the room temperature, the underfloor heating 4 can be controlled depending on the room temperature, but at the same time the control valve 5 can be easily adjusted.

6 generally designates a connection block, which essentially consists of a block body 7 in the form of a strip or an elongated cuboid, which is made of a suitable, heat-insulating material, for example of a foamed plastic (e.g. PU foam or foamed polystyrene Styrofoam) or of another suitable material, for example expanded clay, expanded concrete, foamed glass, etc. Mixtures of these materials with one another or with other substances are also conceivable.

At the upper end in Figures 1 - 3, the block body 7 merges into a box 8, which is open at the front of the connection block 6 and serves to house the control valve 5. At the front of the connection block 6, where the box 8 is open, it forms a protruding edge 9 that surrounds the box opening and serves as a cleaning edge. Furthermore, two pipe pieces 10 are embedded in the block body 7, each of which opens into the interior of the box 8 with its upper end and is led out of the block body 7 with its lower ends 10' in the area of the lower end of the block body 7. The two pipe sections 10 consist of a flexible plastic pipe and are curved at their ends 10' in such a way that the curved center lines of the pipe sections 10 each lie in a plane of curvature, which, when the connection block 6 is installed on the vertical building wall 2, is a vertical plane that forms an angle of less than 90° with the plane of the front of the connection block 6, whereby these two planes of curvature

form an angle with each other that opens towards the front of the connection block greater than 90° but smaller than 180°. This means that in the representation chosen for the figure, the two lower ends 10' in the top view of the connection block 6 run outwards at an angle to the two long sides of the block body 7 or are spread out.

The connection block 6 is attached to the building wall 2 in the manner shown in Figure 1, in such a way that the two pipe sections 10 with their lower ends 10' reach directly to the top of the floor ceiling. The underfloor heating 4 can be mounted on the building's inner wall 2 and also on the front of the block body 7 after the connection block 6 has been installed and, for example, after the interior plaster 9 has been applied. For this purpose, the pipe 4' forming this underfloor heating 4 is inserted with its end forming the flow through one of the pipe sections 10 from below into the box 8 and connected to the control valve 5. A corresponding pipe is led through the other pipe section and also connected to the control valve 5 in order to connect this valve to the flow of the heating or a pipe distributor.

After connecting the control valve 5, the box 8 is closed by a cover 11, over which only the actuating element of the control valve 5 protrudes. The lower ends 10' of the pipe sections 10 are at a level below the floor covering 3, so that after the floor covering has been completed, the connections of the underfloor heating are also covered.

The described orientation of the curved ends 10' or the lateral spreading of these ends ensures that the connection block 6 or the block body 7 has small dimensions in the axial direction perpendicular to the front of the connection block despite a relatively large radius of curvature, so that on the one hand a still permissible minimum radius of curvature for the pipes 4' is not undercut, and on the other hand the connection block 6 can also be used in building partition walls of small thickness.

Figure 4 shows a partial representation and a front view of a further possible embodiment of a connection block 6a, which is designed in two parts, namely consisting of the block body 7a and the box 8a. The latter is attached to the upper end of the block body 7a, in the embodiment shown by connecting elements 12, which are formed from metal or plastic profiles, which on the one hand engage behind locking lugs 13 on the box 8a and on the other hand behind grooves provided on the block body 7a. This two-part design of the connection block with the box 8a that is at least partially open at the bottom and the block body 7a has the advantage that different boxes 8a, in particular boxes 8a of different makes, can be attached to one and the same block body 7a, via the connecting elements or profiles 12 that are also designed as connection adapters. In this embodiment, too, the pipe pieces 10 are again embedded in the material of the block body 7a, in such a way that these pipe pieces end with their upper end on the top of the block body 7a where the respective box 8a is attached with its open underside, and with their lower ends 10' protrude from the lower end of the block body 7a, again in the manner described above, spread out laterally to achieve a low structural thickness for the block body 7a.

It was assumed above that the control valve should be mounted at a low height above the floor covering 3 and that the connection block 6 or 6a has a relatively low height overall, for example a height of around 40 cm. In principle, however, it is also possible to arrange the control valve at a higher operating height. In this case, the connection block 6 or 6a has a height of up to 150 cm.

List of reference symbols 1 Floor 2 Building interior wall 3 floor 4 Underfloor heating 4' Pipe 5 Control valve 6, 6a Connection block 7, 7a Block body 8, 8a Can 9 edge 10 Pipe section 10' End 11 Lid 12 Connection profile 13 locking lug 14 Groove

Claims (10)

Protection claims 1. Connection block for use in building heating systems, consisting of a block body (7, 7a) which can be mounted in a building wall and has at least two channels inside which extend to the vicinity of an underside of the block body (7, 7a) and are open there for receiving a pipe (4') of a heater (4), characterized in that when the connection block is designed to connect pipes (4') to a control valve (5) to be provided on the building wall, each channel opens into the interior of a box (8, 8a) which is provided for receiving the control valve (5) in the region of the upper side of the block body (7, 7a) remote from the underside. 2. Connection block according to claim 1, characterized by its design for connecting pipes to a control valve (5) of an underfloor heating system (4). 3. Connection block according to claim 1 or 2, characterized in that the channels (10) with their lower openings are located below the level of a floor covering (3) in the installed state of the connection block. 4. Connection block according to one of the preceding claims, characterized in that the channels are formed by pipe pieces (10). 5. Connection block according to claim 4, characterized in that the pipe pieces (10) are led out of the block body (7, 7a) with their lower ends. 6. Connection block according to one of the preceding claims, characterized in that the pipe pieces (10) are curved in the region of their lower ends and spread out to the side at the front of the block body (7, 7a) and are led out of the latter. 7. Connection block according to one of the preceding claims, characterized in that the block body (7, 7a) consists of heat-insulating material, for example of foamed plastic, of a foamed material on a mineral basis, for example foam glass, expanded clay, expanded concrete or of mixtures thereof. 8. Connection block according to one of the preceding claims, characterized in that the box (8) is made in one piece with the block body (7). 9. Connection block according to one of the preceding claims, characterized in that the box (8a) is connected to the block body (7a). 10.Connection block according to claim 9, characterized in that the box (8a) is connected to the block body (7a), preferably via fastening elements or profiles (12).