DE29900819U1 - Rainwater branch device - Google Patents

Description

Rainwater branch device

The invention relates to a rainwater branching device according to the preamble of the main claim. Such a rainwater branching device is known.

Such well-known rainwater diversion devices have to be switched manually in order to activate the rainwater diversion on the one hand or to allow the rainwater to flow to the sewer system on the other. In addition, the manual switching is cumbersome and time-consuming and creates a lot of mess.

The invention is based on the task of automating the conversion, depending on the level of the rainwater that is preferably collected in a cistern. The conversion should be quick and easy to accomplish and without creating dirt.

This object is achieved according to the invention by the characterizing features of the main claim. Advantageous further developments of the subject matter of claim 1 emerge from the features of the subclaims.

According to the features of claim 2, it is advantageous that a mechanical connection is provided between a float as a level gauge and the pivoting pipe section. This allows the branch device to be designed very inexpensively.

Furthermore, according to the features of claim 9, it is advantageous that the two drain pipe sockets are arranged parallel to one another. This makes installation easier.

Finally, according to the features of claim 10, it is advantageous that the two drain pipe sockets have the same diameter. This is important in order to avoid a reduction in the drain cross-section of the branch device. Such a reduction would inevitably result in a loss of water.

drawing

An embodiment of the invention is shown in the drawing and explained in more detail in the following description. They show:

Figure 1 shows a cross section through the branch device and
Figure 2 is a top view of the branching device.

Description of the embodiment

A rainwater branching device 1 has a housing 2 made of an impact-resistant and cold-resistant plastic. The branching device 1 is inserted into a downpipe 3 of a gutter system (not shown in detail) and has both a through connection 4 for the downpipe 3 and a branching device 5 that leads to a rainwater collection container 6 (also not shown in detail), preferably to a cistern.

A level gauge 7 is provided in the branch device 1, which measures the water level in the collection tank 6. In the example, the level gauge 7 is a float 8. However, an electrical level gauge 7 (sensor) can also be used. The float 8 is inserted vertically into a drain pipe socket 9 of the branch device 5 and is mechanically coupled to a lower end 11 of a pipe section 12 via a cord 10, preferably made of nylon. The pipe section 12 is pivotally mounted in the housing 2.

The pivotable mounting of the pipe section 12 is created by an upwardly open bearing shell 13, both of which are attached to an inner wall 14 of the housing 2 and into which a pin 27 of the pipe section 12 engages.

Parallel to the float 8, a drain chamber IS is provided, access to which is monitored by a sieve 16. A float chamber 17 is separated from the drain chamber 15 by a vertical partition 18. The sieve 16 and the partition 18 are arranged in the housing 2 and can be removed upwards. An upper edge 19 of the partition 18 serves to deflect the cord 10.

The float 8 carries an indicator rod 20 which protrudes upwards from a housing cover 21 of the housing 2. The indicator rod 20 is provided with a locking device 22 with which the float 8 can be locked in its end position. In this upper position, the float 8 is switched off and a smooth flow through the rainwater downpipe 3 is established with the help of the pivoting pipe section 12.

The housing cover 21 has a pipe socket 23 on its top, which engages over a lower end 24 of an upper downpipe part 25. The housing cover 21 can be moved upwards on the downpipe part 25 after the indicator rod 20 of the float 8 has been detached. The interior of the housing 2 is then accessible from above, in particular for inspection purposes. By rotating the housing cover 21 90° around the downpipe part 25, the housing cover 21 can be placed transversely on the housing 2.

It is an essential feature of the invention that the drain pipe socket 9 of the branch device 5 is arranged parallel to a drain pipe socket 26 of the through connection 4, because this makes assembly easier. It is also important that the diameters of the two drain pipe sockets 9 and 26 are the same, because this ensures that all incoming rainwater can also reach the branch device 5 and thus the cistern and nothing is lost to the sewer system.

How it works

When the rainwater collection tank 6 is empty, the float 8 is in its lowest position. This position can be recognized by the low position of the indicator rod 20 and if necessary through a viewing window that can be inserted into the housing 2.

In this position, the branch device 5 is activated by the cord 10 pulling the lower end 11 of the pipe section 12 to the right so that it comes to rest above the sieve 16 and allows any water entering the branch device 1 to reach the drainage chamber 15 until the rainwater collection tank 6 is full.

Then the float 8 floats up and lets the lower end 11 of the pipe section 12 slide back over the cord 10 until it is above the drain pipe socket 26 of the downpipe 3, as shown in dashed lines in the drawing. Then any rainwater that continues to flow into the sewer system and the rainwater collection container 6 is protected from overflowing.

List of reference symbols

1. Branch device

2. Housing

3 Rain downpipe

4 Through connection

5 Branching device

6 collection containers

7 Level gauge

8 swimmers

9 Drain pipe socket

10 cord

11 End

12 Pipe section

13 Bearing shell

14 Interior wall

15 Drain chamber

16 Sieve

17 Float chamber

18 Partition wall

19 Top edge

20 Indicator rod

21 Housing cover

22 Locking device

23 Pipe socket

24 End

25 Rain downpipe part

26 Drain pipe socket

27 cones

Claims (13)

Expectations 1. Rainwater branching device for insertion into a downpipe of a gutter system, with a through connection for the downpipe and a branching device that leads to a rainwater collection tank (cistern), characterized in that a level gauge (7) is provided that detects the water level in the collection tank (6), via which the branching device (1) can be automatically switched to throughflow or to rainwater branching depending on the water level. 2. Rainwater branching device according to claim 1, characterized in that the level gauge (T) is a float (8) which is mechanically coupled to a positionally variable pipe section (12) and that the pipe section (12) is pivotally mounted in the housing of the branching device (1) in such a way that in one of its end positions it switches on the through connection (4) of the downpipe (3) and in its other end position ensures the activation of the branching device (5). 3. Rainwater branching device according to claim 2, characterized in that the branching device (5) has a drain pipe socket (9) into which the float (8) projects on the one hand and which contains, parallel to it, a drain chamber (15) monitored by a sieve (16). 4. Rainwater branching device according to claim 3, characterized in that the drainage chamber (15) has a partition wall (18) for separating the drainage chamber (15) from a float chamber (17). 5. Rainwater branching device according to one of claims 2&Lgr; , characterized in that the mechanical connection between the float (8) and the pivotable pipe section (12) is formed by a cord (10) preferably made of nylon, which is fastened on the one hand to the float (8) and on the other hand to a free lower end (11) of the pipe section (12). 6. Rainwater branching device according to claims 4 and 5, characterized in that the cord (10) is passed over an upper edge (19) of the partition wall (18). 7. Rainwater branching device according to one of claims 2-6, characterized in that the float (8) carries an indicator rod (20) which protrudes from the top of a housing cover (21) of the housing (2) and which is provided with a locking device (22) with which the float (8) can be locked in its upper end position. 8. Rainwater branch device according to claim 7, characterized in that the housing cover (21) has a pipe socket (23) for engaging over an end (24) of an upper downpipe part (25) and that the housing cover (21) can be moved upwards on the end (24) of the downpipe part (25) after being released from the indicator rod (20) of the float (8) and can be placed on the housing (2) for inspection by turning it 90°. 9. Rainwater branching device according to one of claims 3-8, characterized in that the drain pipe socket (9) of the branching device (5) is arranged parallel to the drain pipe socket (26) of the through connection (4). lO.Rainwater branching device according to one of claims 3-9, characterized in that the drain pipe socket (9) of the branching device (5) and the drain pipe socket (26) of the through connection (4) have at least largely the same diameter. 11.Rainwater branching device according to one of claims 1-10, characterized in that both the sieve (16) and the partition wall (18) can be removed upwards from the housing (2) of the branching device (1). ^.Rainwater branch device according to one of claims 2-11, characterized in that the pivotable mounting of the pipe section (12) is provided on a respective upwardly open bearing shell (13) formed on an inner wall (14) of the housing (2) and receiving a pipe section pin (27), from both of which the pipe section (12) can be removed upwards. 13.Rainwater branching device according to one of claims 1-12, characterized in that the housing (2) consists of an impact-resistant plastic.