DK171371B1 - Combination coupling for water installation systems - Google Patents

Description

in DK 171371 B1

BACKGROUND OF THE INVENTION The present invention relates to a coupling housing for mounting in a building part for conducting a flow of water in a water-borne pipe conveyed in an empty pipe, from the building part and to a tapping point mounted on the surface of the building part, such as a common fixture, the coupling housing having a first end. and a second end, an inner channel extending from the first end to the second end, means for attaching the void tube at the first end.

The use of both one and more, and within the last year 15 entire networks of both embedded and detached voids in buildings are known.

The empty pipes are used for many different purposes. In the relatively large pipes that were used years ago, 20 tele-, antenna and power cables, water pipes and heat pipes have been drawn, often in the same tube.

The latest in building parts is to lay down or embed many empty pipes with smaller dimensions, and therein feed 25 e.g. full length water or heating pipes, and terminate the empty pipes with wall sockets for receiving the water-carrying pipe and a separate fitting for connecting the pipe to a fixture mounted on the surface of the building. 1 2 3 4 5 6

There are a number of examples of such casing boxes known as 2, however, all of which are quite large in that they have to accommodate the fit 3 things which are to terminate the water-carrying pipe in the system.

4

At the same time, sufficient space within them must be provided for the water-carrying pipe to be removed at an angle 6 of 90 ° through the watercourse outlet.

DK 171371 B1 2

For example, DE 3 315 786 relates to a plastic wall box or housing in which it is mainly concerned with providing sufficient space as mentioned above. The same applies to EP 5 625, which also has various threads that can hold the clamp ring fitting also contained in this can. In DE 3 700 878 the same problems are solved by using a method of casting a can and copper pipe in polyurethane foam. However, this is a solution that is especially aimed at the "do-it-yourself" market.

10

It is a disadvantage of the known coupling houses that they fill quite a lot, so that very large holes have to be made in the building part that will accommodate them, and for most people there must be quite large rosettes to cover them. Special tools often need to be used for them, and they are difficult to attach unless they are applied to fairly large attachment tabs, making them even larger, and the holes in the building part for the cans uptake as well. Together with the fitting, they consist of quite a few individual parts that make them expensive, and finally the fixture of the tapping point must always be dismantled to make it possible to enter the water-carrying pipe.

The object of the invention is to provide a coupling housing which has a substantially smaller volume than the known coupling housings, so that it requires less space when wall-mounted.

This object is achieved as claimed in claim 1 in that - the coupling housing comprises: - - means for watertight attachment of the water-carrying pipe to the coupling housing at the first end and - - means for watertight fastening of the tapping point to the coupling housing at the second end.

DK 171371 B1 3

The coupling housing is thereby utilized to conduct the flow of water in itself and therefore very few parts are required. This makes the house considerably cheaper to manufacture.

By designing the coupling housing as set out in claim 2 so that tensioning of the water-carrying pipe can take place after the walling, it is achieved that the water-carrying pipe can be removed for replacement and inspection without removing the drain unit.

10 As mentioned, the coupling housing accommodates both the emptying pipe and the water-carrying pipe and the outlet fitting in a tight connection. In a particularly convenient embodiment as recited in claim 3, the coupling housing further comprises the part of a compression fitting which receives the fluid-carrying pipe.

15

In one embodiment according to claim 4, at several points in the construction, dimensional constraints can be introduced which cause pressure drop and thus contribute to water saving.

20

By an appropriate dimensioning of the coupling housing, as mentioned in claim 5, it can be achieved that a cover rose in standard dimension can cover the retaining hole in the wall in which the housing is fixed.

25

By supplying the unit with a special sealing rose as claimed in claim 6, water can be prevented from entering e.g. plaster walls.

In an alternative embodiment, as claimed in claim 7, the coupling is designed as a direct coupling.

The invention will now be explained in more detail with reference to the drawing, in which FIG. 1 shows a section through a coupling housing with inserted corrugated empty pipe and water pipe; FIG. 2 is a front view of the coupling housing with a dotted cover; FIG. 3 shows a coupling housing with a sealing rose; FIG. 4 shows a known wall box with inserted compression fittings of known type, and FIG. 5 shows an embodiment as a direct coupling.

The coupling housing 1 shown has holes 13 for use in attachment to the building structure. The coupling housing is provided with an opening downwards for receiving the emptying tube 2. In the opening is a gasket 4 which prevents water leakage externally on the emptying tube. An opening forward with internal thread 10 is for mounting a tapping point optionally with an intermediate fitting inside. In the drain pipe 20 the flexible water pipe 3 is provided, which at one end can be provided with an inner support sleeve 6 and an outer clamping ring 5 which, when attached to the water pipe 3, abuts the cone 12 inside the coupling housing in one end. end and intermediate ring 9 at the other end. The clamping screw 7 is provided at one end with holes 8 for water passage and at the other end with a carrier device 14, which is preferably an internal hexagon, but may also be an external carrier or have other shapes. Through tensioning of the clamping screw 7, this intermediate ring 9 acts axially.

This force is applied to the clamping ring 5, which thereby achieves a smaller radial displacement towards the center via the cone 12, which causes it to clamp about the flexible water pipe 3, thereby obtaining a tight joint. In one embodiment shown in FIG. 3, the coupling housing 1 exterior of the opening facing 35 forward is provided with a thread 15 for mounting a sealing ring 11 with gasket for waterproof mounting against the building structure. By placing the hole in the cover rosette 16 eccentrically, standard-size rosettes can be used.

5

It will be appreciated from the foregoing that the coupling housing in the present construction forms both a wall box and compression fitting and is a luminaire receiver. The complete assembly will hereby consist of a minimum number of 10 parts. As it is made of metal, it also becomes less delicate to construction site treatment.

All access to the assembly for assembly, inspection and replacement takes place through the coupling housing, which can also be carried out at many different angles even simultaneously, as shown in FIG. 5th

The coupling housing provides very high protection against water damage and meets the latest standards for water installation systems as well as the 20 conditions for getting pipe damage insurance at a reduced price, because all joints are available, the water pipe can be replaced and any leaks can be detected by various devices in connection with the drain pipe.

25

The coupling housing is mainly carried out in a zinc-resistant brass alloy. The fact that the work is done in metal gives much better mounting and tensioning possibilities. 1

By performing the intermediate ring, support bushing and clamping screw as one part, it will be possible to further simplify the construction.

Claims (7)

A coupling housing (1) for mounting in a building part to conduct a flow of water in a water-carrying pipe (3) conveyed in an empty pipe (2), from the building part and to a tapping point mounted on the surface of the building part, such as a regular fixture, the coupling housing (1) having 10. a first end and a second end, an inner channel extending from the first end to the second end, means for attaching the void tube (2) to the first end, characterized in that the coupling housing (1) comprises: - means for watertight attachment of the water-carrying pipe (3) to the coupling housing (1) at the first end 20, and - means for waterproof fastening of the tapping point to the coupling housing (1) at the second end. Coupling housing according to claim 1, comprising means capable of retaining and sealing the water-conducting pipe to the coupling housing (1) at a rate, characterized in that the water-carrying pipe (3) is adapted to be tightened from one end of the housing (1). ), which faces opposite the first end, where this end is accessible after wall mounting, such that tightening of the water-carrying pipe (3) can occur after wall mounting of the coupling housing. Coupling housing according to claim 1 or 2, characterized in that the coupling housing (1) comprises a pipe receiving part of a compression coupling. DK 171371 B1 Coupling housing according to claims 1-3, characterized in that it further comprises other known means for limiting water. Coupling housing according to claims 1-4, characterized in that it is dimensioned so that after mounting it can be covered by a rosette (16) in standard dimension for a tapping unit. Coupling housing according to claims 1-5, characterized in that a sealing rose (11) for preventing water penetration into the building structure at the installation site can be provided at the connection of the tapping point in the known manner. 15 Coupling housing according to claims 1-6, characterized in that it is designed as a direct-coupling.