ES2250862T3 - REBOSE AND DRAIN DEVICE FOR SANITARY APPLIANCES. - Google Patents

Abstract

Overflow and drainage fitting for sanitary appliances comprises an overflow pipe connected to a drainage opening and having in the flow direction firstly a vertical channel and after an overflow edge a return channel. On reaching a pre-determined water level (27) in the sanitary appliance, the overflow pipe forms a closed flow (34) that removes water from the sanitary appliance. Preferred Features: The discharge rate of the closed flow is greater than a maximally permissible incoming rate, especially greater than about 0.61/sec.

Description

Overflow and drain device for devices sanitary

The invention relates to an overflow set and drain for sanitary appliances according to the preamble of the claim 1.

A set of overflow and drain of the cited species It is known within the state of the art by EP 0 446 177 A of the applicant. In this one, the overflow is arranged hidden, determining the overflow edge the maximum water level in The sanitary apparatus. Another overflow and drain set with a tube of hidden arranged overflow has also been known by EP 0 098 757. In known overflow and drainage sets it is considered a inconvenient that they comparatively demand a lot of space and just they can be mounted or are impossible to mount when conditions of space are narrow, particularly behind bathtubs and toilets

Patent DE 36 10 006 A describes a set of bathtub overflow located in low position. To achieve a siphoning effect and thereby prevent involuntary emptying of the bath, it is necessary that in this one, over an overflow connection is arrange a secondary air system.

The invention aims to create a set of overflow and drain of the aforementioned class, which requires less space and also offer greater performance and security.

This objective is solved in an overflow set and drain according to the species according to claim 1. If a sanitary appliance, for example a bathtub, is filled above the expected level then a flow occurs in the overflow tube continuous that with great power sucks the water found by above the level Due to the great power of the continuous flow, it can manufacture the overflow tube with a diameter considerably less or a smaller section area than before. Due to the smaller diameter of the overflow pipe is possible an execution correspondingly less and occupy less space. The minors construction dimensions also mean lower consumption of material and therefore lower manufacturing costs and a smaller transport volume

According to a refinement of the invention means are provided for interrupting the flow of suction. In this way you have the possibility of interrupting selectively and safely the continuous flow when the desired level, thereby adjusting the desired level and preventing the bath is emptied by suction. An embodiment especially simple and safe of these means presents a communicating tube that is open at the top, and above the overflow edge is in communication with the overflow tube. When in the case of a flow continuous, the level in the communicating tube drops to a level By default, the air entering the overflow tube interrupts The continuous flow.

According to a refinement of the invention is provided a sump in which a pluggable outlet and a hole for the overflow tube. This way it is possible to make a simple construction and a simple assembly. According to a refinement of the invention, in this sump there is also a hole for The communicating tube.

Other advantageous features and advantages are deduced from the dependent claims, from the following Description and drawing.

An exemplary embodiment of the invention is Describe below in greater detail using the drawing. The figures show:

Figure 1 schematically a view in perspective of an overflow and drain set according to the invention,

Figure 2 schematically a section along of line II-II of Figure 1,

Figure 3 schematically a section through a bathtub with an overflow and drain set mounted,

Figure 4 another section through the overflow set and drain object of the invention,

Figure 5 another view of the overflow and drain set object of the invention,

Figures 6 to 11 schematically the operation of the overflow and drain set object of the invention.

The overflow and drain set 1 presents in agreement with Figure 1 a sump 3, which is assembled as such known according to Figure 3 on a bottom 35 of a sanitary apparatus, for example of a bathtub. A lid is placed above the sump 3 11, which covers an outlet hole 10, a hole 15 for a tube of overflow 5 and a hole 14 for a communicating tube 8. In the Figure 1 shows the cover 11 cut out, for clarity of the He drew. The lid 11 does not close the sump but forms at its edge a hole that is not visible here through which water passes to sump 3.

The outlet hole 10 can be closed according to the Figure 4 with an outlet valve 21 known per se, and leads to a siphon or closure against odors 20, as well as to an outlet pipe 9, which is connected to a downpipe that is not here represented.

As Figure 3 especially shows, the overflow tube 5 is arranged hidden and therefore In general, it is not visible when the sanitary device is mounted 2. As you can see, the overflow tube 5 is connected at the bottom to hole 15, and has an essentially horizontal section 22, which continues with an essentially vertical ascending section 36, a curve 38 and a descending section 37. At the lower end of the section descending 37 a siphon or closure against odors 12 is connected, which through a connecting piece 17 it also leads to the pipe of downpipe mentioned above. The ascending section 36 forms, according with Figure 2, an ascending duct 18 that at its end upper leads through an overflow edge 6 to a conduit of return 19, formed by section 37.

Essentially parallel to horizontal section 22 runs a section of tube 13 of the communicating tube 8, which is connected to hole 14 and connected to a vertical ascending section 39. The communicating tube 8 has a hole 16 at its upper end. Below this hole 16, the communicating tube 8 is connected to curve 38 by means of an essentially horizontal tube 7. Agree with Figure 2, the tube 7 forms a joint conduit 40 that runs essentially horizontal, whose section is considerably lower than that of the ascending duct 18. As you can see, the hole 16 is disposed above the overflow edge 6 and also above junction conduit 40, but according to Figure 4 it is arranged below an edge 4 of the sanitary apparatus 2. The hole 16 is therefore also arranged hidden. But nevertheless hole 16 is preferably immediately below of the edge 4, as can be recognized by Figure 3.

The following describes in greater detail the operation of the overflow and drain set object of the invention.

Figure 6 shows a bathtub 2, to which it goes connected an overflow and drain set 1 according to the invention, and which can be filled with water 28, by means of a water connection 31, for example a tap of running water. If bathtub 2 is empty according to Figure 6, then the siphon 20 is filled with water 23 and the siphon 12 full of water 26. Also sections 22 and 13 are full of water 24 or 25 respectively.

If bathtub 2 is filled with water now with Figure 7, then a level of water 27 that goes up. In this case, the exit hole is naturally closed. Since holes 14 and 15 are open and the cover 11 forms a step at its edge as mentioned, the water rises at the same time in both sections 36 and 39. Through the hole 16 can escape the air between water 24 and 26. In the section 36, the water forms a water level 30 and in section 39 a level of water 29. Levels 27, 29 and 30 are respectively at the same height. If level 30 is at the height of overflow edge 6, then level 29 is below junction conduit 40, and the level 27 is below the edge 4. If the water inlet to the bathtub 2 is relatively scarce, then level 27 remains at height of the overflow edge 6, and the water entering is evacuated permanently through the overflow edge 6. The water 32 that goes overflowing arrives, according to Figure 8, to the curve of the siphon 12 and finally to the drain drain pipe.

If it opens more the water inlet 31 is filtered more water per unit of time, so that the performance of usual output of the overflow tube 5 is less than the feed, then level 27 rises above the height of the edge of overflow 6, and finally above the height of the junction duct 40, as indicated in Figure 9. Correspondingly, level 29 rises in the communicating tube 8. Due to the rise in level 30 curve 38 is completely filled with water. The section of overflow tube 5 is sized in such a way that in the tube of overflow 5 a continuous water flow is formed. A flow of continuous water 34 if in the return duct 19 the flow rate of volume is so large that after the overflow edge 6 fills all the return duct section 19 and can not flow more air. For this, the section of the conduit 19 is preferably smaller than that of the duct 18. If a continuous flow of water 34 has formed this type, then significantly increases the speed of water in the conduit 19 and thereby the performance is improved accordingly Drain After forming the continuous water flow 34, therefore suck 2 more water from the bath than before. Through the connecting duct 40 and due to the continuous flow 34, also evacuates water from the communicating tube 8. Level 29 and also the Level 27 is therefore lowered relatively quickly. He continuous water flow performance 34 is sized such so that it is greater than the maximum allowable flow rate. This maximum permissible flow rate is usually for devices toilets usually from 0.5 to 0.6 l / s. In most of the countries there are corresponding standards. The overflow tube 5 per therefore it is sized in such a way that after forming the continuous water flow 34 are evacuated per second more than for example 0.5 to 0.6 l / s. Even in the case of maximum influx, level 29 descends therefore after a water flow has formed continuous 34. If level 29 falls below the height of the connecting duct 40 then through the hole 16 penetrates air through the connecting duct 40 to curve 38, as is indicated in Figure 10 by arrow 33. For this reason it interrupts continuous water flow 34 and level 27 drops up to the edge of the overflow edge 6. If the flow rate still high, then level 27 goes back up and repeats the process described above with the formation of water flow continuous 34. If the water supply is cut off or reduced considerably, then level 27 remains stable at height of the overflow edge 6, according to Figure 10.

To empty the bath 2, the valve is opened exit 21. The water drains through the curve of siphon 12 and arrives to the downstream described above. Finally, the state represented in Figure 6.

In case of excess filling above the edge of overflow 6 therefore a continuous water flow 34 is formed which It has a relatively high power, and that even with influx maximum prevents overflow of bathtub 2. Overflowing of bathtub 2 naturally it could also be done with an overflow tube 5 that had a sufficiently wide sized driving. But a overflow tube of this class would need correspondingly large amount of space The overflow tube 5 of the overflow and drain set object of the invention, however, can be performed with a tube overflow 5 having a duct 18 and 19 with an inside diameter considerably less. Even in the case of maximum influx permissible can prevent overflow of bathtub 2 or other device sanitary.

Reference List

one

Set

twenty-one

Outlet valve

2

Sanitary appliance

22

Stretch horizontal

3

Sink

2. 3

Water

4

Edge

24

Water

5

Tube overflow

25

Water

6

Edge overflow

26

Water

7

Tube

27

Water

8

Tube caller

28

Water

9

Tube output

29

level of water

10

Reasonable exit hole

30

level of water

eleven

Top

31

Water inflow

12

Curve siphon

32

Water

13

Stretch of tube

33

Arrow

14

Orifice

3. 4

Flow continuous

fifteen

Orifice

35

Background

16

Orifice

36

Stretch upward

17

Piece of connection

37

Stretch falling

18

Ascending duct

38

Curve

19

Return duct

39

Stretch upward

twenty

Siphon

40

Union duct

Claims (11)

1. Overflow and drain set for sanitary appliances (2), in particular for sinks, sinks, bathtubs and bidets, with an overflow tube (5) that can be mounted concealed and that is connected to the exit hole and seen in the direction of flow it first presents an ascending duct (18) and after an overflow edge (6) a return duct (19), characterized in that the overflow tube (5) draws water when a predetermined water level is reached ( 27) in the sanitary apparatus (2), with a continuous flow (34), means (7, 8) being provided which interrupt the continuous flow when the level in a tube (8), which is in communication with the sanitary apparatus , descend to a predetermined level. 2. Set according to claim 1, characterized in that the output efficiency of the continuous flow (34) is greater than the maximum permissible flow efficiency, and in particular greater than about 0.6 l / s. 3. Set according to claim 1 or 2, characterized in that the continuous flow (34) is formed in the ascending duct (18) after exceeding a water level (30). Set according to claim 3, characterized in that the communicating tube (8) is open at the top and is in communication with the overflow tube (5) above the overflow edge (6). 5. Set according to claim 4, characterized in that the communicating tube (8) rises in the assembled state essentially to below an edge (4) of the sanitary apparatus (29). 6. Set according to one of claims 1 to 5, characterized in that a sump (3) is provided to which an outlet pipe (9) and the overflow pipe (5) are connected. 7. Set according to claim 6, characterized in that the sump (3) has an outlet port (10) pluggable. 8. Set according to claim 6 or 7, characterized in that the sump has an outlet (14) to which the communicating tube (8) is connected. 9. Set according to one of claims 1 to 8, characterized in that the sump (3) has an open cover (11). 10. Set according to one of claims 1 to 9, characterized in that a plug-in outlet (10), a hole (15) for the overflow pipe (5) and a hole (14) are arranged in the sump (3). for the communicating tube (8). 11. Set according to one of claims 1 to 10, characterized in that the section of the overflow tube (5) is sized in such a way that when the predetermined water level is exceeded in the sanitary apparatus (2) the continuous flow is formed (34 ).