ES2898473T3 - Drainage device and sink comprising said drainage device - Google Patents

Abstract

Drainage device for a sink (12), in particular in the form of a sink, consisting of at least one fluid circulation part (24) and a fluid blocking part (26), at least one of which which is mobile by hand from a fluid circulation position (OS) between the battery (12) and a drainage tube (34) of the device to a fluid passage blocking position and vice versa by means of a locking installation. activation (30), wherein the activation installation (30) has a fixing installation (54), by means of which the drainage tube (34) can be fixed in a fluid-tight manner in the basin (12), wherein the drainage tube (34) can be arranged at a distance from a bottom (14) of the stack (12) by means of a compensation piece (76) in the form of a cup, provided with a central hole (72) in its bottom (74), characterized in that between the compensation piece (76) and the drainage tube (34) a ring of stanchion is arranged slot (78) with an n-shaped cross-section, which presents on its lower side directed towards the drainage tube (34) a circumferential groove, in which the edge of the drainage tube (34) fits.

Description

DESCRIPTION

Drainage device and sink comprising said drainage device

The invention relates to a drainage device for a sink, in particular in the form of a sink, which is made up of at least one part for circulating the fluid and a part for blocking the fluid, at least one of which is mobile. by hand from a position of fluid circulation between the battery and a drainage tube of the device to a position of blocking the flow of fluid and vice versa by means of an activation installation, where the activation installation has a fixing, by means of which the drainage tube can be fixed fluid-tight in the stack. The invention further relates to a sink with a drainage device arranged therein.

Such drainage devices are freely available on the market in multiple embodiments. They are designated as drain faucets. In general, they are inserted into a hole at the bottom of a basin and ensure that used water or residual water can be led from the basin through the drainage pipe into a channel. Furthermore, these drainage devices generally have a fluid-blocking part in the form of a plug, which can be inserted into a hole formed by the drainage device.

Such a drainage device is known, for example, from WO 2012/135929 A1. This drainage device is especially intended for cells with a connection fitting integrally formed or welded thereon. In this way, on the visible side, which is the upper side, there is no transition between the bottom of the stack and the connection fitting for a user. In this way, the sink can be cleaned very easily, since deposits do not form between the sink and the drainage device and can be removed. But the proposed solution has very narrow tolerances and presupposes that a drainage device specially adapted for a respective sink is conceived and mounted. In addition, the solution has large voids, in which deposits and other ingredients of used or waste water can accumulate and in which bacteria and fungi can then multiply rapidly. Since a tube with a thread must be provided on the outside, this also results in a high production cost. Furthermore, mounting a nut to be screwed onto a drain pipe is very costly.

A drainage device of the type described in the introduction is known from DE 20 2004 011 935 U1. The drainage tube is arranged on the underside of the basin on a compensating piece that narrows in diameter from top to bottom. The sealing is carried out towards the bottom of the stack by means of a sealing gasket, which rests on an upper annular surface of a connecting flange provided in the compensation piece. The sealing of the compensation piece towards the drain pipe is achieved through a radially sealing sealing ring, which is arranged in a cylindrical section of the compensation piece, which engages in a surrounding annular flange of the drain pipe.

DE 102004 055 379 A1 discloses a sink, in which the drain pipe is also arranged on a compensating piece at the bottom of the sink. Here, too, a cylindrical section of the compensation piece engages in a corresponding annular receptacle of the drainage tube, which surrounds the cylindrical section on the outside. The compensation piece is also here reduced in diameter from the side, which is arranged in the sink, towards the side connected to the drain pipe.

EP 2177 672 A2 discloses an arrangement, in which again the drain pipe is connected via a compensation piece to the sink. The tightness between the compensation piece and the drainage tube is achieved through a radial seal by means of a sealing ring, which is housed in a radial groove in the compensation piece. The annular seal, through which the sealing to the bottom of the stack takes place, is housed in an open annular recess, which is formed in the compensation piece.

Document US 2014/0075662 A1 describes a basin with a drainage device arranged in it, which is reduced in diameter, from the side, with which it is connected at the bottom of the basin, towards the side that enables connection with the drain tube. The sealing towards the bottom of the stack is carried out by means of a sealing ring, which rests on an annular flange of the compensation piece which extends radially.

Document EP 0874 091 A2 finally discloses a sink, in which the drain pipe is connected to the bottom of the basin by means of a compensating piece that is reduced in diameter. Sealing is also provided here towards the bottom of the stack by means of a sealing ring resting on a radial flange. The lower end of the compensation piece here also fits into a corresponding cylindrical recess at the end of the drain pipe.

Proceeding from this, the object of the invention is to provide a drainage device, which can be installed in a substantially simpler manner and requires less construction space. Another object of the invention is to indicate a sink with such a drainage device.

The part of the task relating to the drainage device is solved by a drainage device with the features of claim 1. Advantageous embodiments of the drainage device follow from claims 2 to 8. The part of the task that refers to the battery, is solved by means of a battery with the characteristics of claim 9.

According to claim 1, provision is made for the drainage pipe to be arranged at a distance from the bottom of the basin on a compensation piece in the form of a cup, provided with a central hole at its bottom. According to the invention, between the compensation piece and the drain pipe there is arranged a sealing ring with an n-shaped cross-section with a circumferential groove provided on its underside facing the drain pipe, in which the edge of the drainage tube.

The solution according to the invention has the advantage that a simplified assembly results, since only the fastening device of the fastening device has to be tightened with the drainage pipe, in order to thus mount the drainage pipe on the stack and configure the transition from the stack to the drain pipe in a fluid-tight manner. Assembly is possible in this case very easily and can be carried out quickly by one person, since only a part of the drainage device has to be inserted from the visible side into the stack and it has to be tightened with another part on the bottom side of the stack. Since the fixing installation is a part of the activation installation, a functional integration results, which implies a saving of necessary construction space.

According to a preferred embodiment, the fastening device is a screw, preferably centrally arranged, which can be screwed into a thread and/or into at least one other component of the drainage pipe. Therefore, assembly by one person is further simplified. When the drain tube is held with one hand, the screw can be screwed in with the other hand and with a suitable tool. The drainage tube can be fastened safely and quickly in the stack in this way.

The drain pipe can have as a component a strainer basket valve, into the thread of which the screw can be screwed. In such a valve it is possible to additionally block the outflow and filter possible coarse contaminations in the form of solid bodies from the waste water, before it is introduced into the downstream pipe system.

The screw is preferably a hollow screw, in the central hole of which a bolt is arranged to move axially as a support for the fluid blocking part. In this way, the screw functions, on the one hand, as the element that ensures the fastening of the drainage tube and, on the other hand, as the guide element of the fluid blocking piece. In this way, two essential functions are integrated into the screw.

A basket, preferably with at least one especially round or slot-shaped hole, can be attached to the fluid blocking part. With such a basket, larger solid bodies in the wastewater, such as food scraps or waste, can be safely collected without these reaching the pipes arranged downstream. In this way, blockages of these pipes can be avoided, which have to be remedied relatively expensively. Another advantage is that contamination of the sealing surface between the fluid blocking part and the fluid circulation part, which can lead to a leak, is avoided.

Preferably, the fluid circulation part is formed by a screen, especially in the form of a flange, with at least one hole, which can be inserted into a connection fitting of the battery. Through the fluid flow part, there is the advantageous possibility of creating, on the one hand, a flow of fluid from the interior of the sink to a drainage tube and, on the other hand, fixing the drainage tube securely in the battery, without it having to be perforated for this purpose.

According to the invention, the drainage pipe can be arranged on a compensation piece in the form of a cup, provided with a central hole at its bottom, at a distance from a bottom of the basin, where sealing rings are preferably provided between the compensation piece and the drain pipe as well as the bottom of the basin. The compensation piece facilitates in this case the adaptation of the connection device to different configurations of the stack. A different height or width of the stack connection fitting can be compensated for in a simple way. It is no longer necessary to use a specially adapted connection tube for each stack. Instead, only the compensating part has to be adapted, this part being able to be configured in such a way that it is suitable from the outset for a plurality of battery shapes. The construction and manufacture of the drainage tube, which already has a relatively complex geometry anyway, is simplified in this way.

The sealing ring between the compensation piece and the drain pipe is n-shaped in cross section.

In this way, the sealing ring has on its underside facing the drain pipe a circumferential groove, into which an edge of the drain pipe can be inserted. In this way, a large sealing surface with a long flow path results.

Preferably, the n-shaped seal overlaps a radially outwardly projecting edge of the goblet-shaped drainage tube. In this way, a particularly good sealing connection point is created between the drain pipe and the compensation piece.

The n-shaped sealing ring preferably abuts with a thickened sealing lip on an inlet of the drain pipe, which is preferably adjacent to the edge of the drain pipe. In this way, the flow path that a fluid must travel from the inside of the drainage device outwards towards the environment is increased. The tightness of the sealing place between the drain pipe and the compensation piece is improved.

The sealing ring between the compensation piece and the battery can be arranged in a surrounding groove on the upper side of the compensation piece. For this purpose, the compensating part can be widened at its upper edge, in particular it can extend radially outwards. Therefore, the sealing ring is safely housed and can be pressed with a high surface pressure against the underside of the stack.

The invention further relates, according to claim 9, to a sink with a drainage device arranged there according to the invention, characterized in that its bottom is made seamless, in the sense of free of appendage, with the exception of the transition from the bottom to the tube-shaped connection fitting. In conventional drainage devices, a flange of a fluid flow piece rests on the bottom. On the edge of the tab there is an appendage and nests of dirt can form, in which bacteria can accumulate or multiply. To remove these nests of dirt, it is necessary to use sharp cleaning agents. These can affect the surface or coating of the drainage device and make them look bad over time. In the solution according to the invention, a flange resting on the bottom is avoided. The bottom passes free of appendix to the connection fitting. In this way, you can clean the bottom of the stack very easily and it always appears clean.

Advantageously, a round, tube-shaped connection piece can be formed in a hole in the stack, which is pushed inward at its free end, and the end of the connection piece can form a counter support for the fluid flow part. , which is supported by the counter support.

The cell can be made of a composite material, which has a cured polymerized binder and fillers incorporated therein. Such batteries can be adapted to the most different application objects with excellent properties of use. They are easy to clean, have an advantageous appearance even after years and have a long service life. Since a composite material is used, possible corrosion problems can also be avoided.

The invention is explained in detail below with the aid of an exemplary embodiment shown in the figures.

Figure 1 shows a cross section through the drainage device according to the invention.

Figure 2 shows a top plan view of the drainage device of Figure 1.

Figure 3 shows an inclined perspective view from above on the drainage device of Figure 1.

Figure 4 shows an inclined perspective view from below on the drainage device of Figure 1; and

Figure 5 shows an exploded view of the drainage device of Figure 1.

In FIGS. 1 to 5, a drainage device 10 for sink 12 is shown, in particular in the form of a sink. In this case, the stack 12 has a bottom 14 and side walls that are not shown in detail. It is manufactured by injection molding from a composite material that has a polymerized hardened binder and fillers inserted therein. In this case, a round tube-shaped connection fitting 18 is formed in a hole 16 of the basin 12, which is pushed inward at its free end 20 to form a counter support 22 for the drainage device 10.

The drainage device 10 has a fluid flow part 24 and a fluid blocking part 26. The fluid flow part 24 is formed by a flange-shaped screen part. The screen part 24 has a central hole 28 (FIG. 5) for accommodating an activation device 30, and several other fluid flow holes 32 are provided at a radial distance from this central hole 28, offset on a partial circle. especially in the form of holes. The fluid circulation piece 24 can be inserted into a connection fitting 18 of the battery 12 and rests on its inserted end 20 . The fluid blocking part 26 is movable by hand from a position "Os", which allows the fluid to pass between the stack 12 and a drainage tube 34 of the drainage device 10, to a position which blocks the passage of the fluid and vice versa. by means of the activation device 30. For this purpose, the fluid blocking part 26 has an essentially U-shaped configuration, seen in cross-section. transverse, which is open downwards. Two radially outwardly projecting sealing lips 36, 38 are provided on the fluid blocking part 26, which can be abutted sealingly on a side wall 40 and in the openings 32 of the fluid blocking part 26. In order to facilitate the insertion of the fluid blocking part 26 into the openings 32 of the fluid circulation part 24, a circumferential groove 42 is provided. vertically upwards, but not projecting beyond the bottom 14 of the stack 12. A basket 46 is fixed between the handle 44 and the fluid blocking part 26. The basket 46 has, as can be seen especially in the figure 2, numerous holes 48 in the form of holes, which are made in three offset rings on the partial circle in the basket 46. On its upper side 50, the basket 46 has a flange-like edge 52, where the distance cia A from the connection fitting 18 of the stack 12 remains small.

The activation device 30 has a fixing device 54, by means of which the drainage pipe 34 is held against the fluid flow part 24 at a predetermined distance B. The mounting device 54 has a centrally arranged screw, which can be screwed into a thread 56 of the drain pipe 34. The drain pipe 34 has a strainer basket valve 58 for this purpose, on which the thread 56 arranged centrally in the drain pipe 34, into which the screw 54 can be screwed.

Screw 54 is a hollow screw. A bolt 62 is arranged axially movable in a central hole 60 of the hollow screw 54 as a support for the fluid blocking part 26. The activation device 30 is formed for this purpose by a handle 44 with a threaded rod 64, which can be After the middle penetration of the basket 46 and the fluid stopper 26, screw it into an axial hole 66 of the bolt 62 or it can be fixed in another suitable way.

The drainage tube 34 has an approximately L-shaped development in cross section and extends predominantly in the horizontal direction HR. At its free end 68, the drainage pipe 34 is provided with an external thread 70, via which it can be connected to other, not shown, pipe sections of a conventional drainage system.

The drainage pipe 34 can be arranged at a distance from the bottom 14 of the sink 12 on a compensation piece 76 in the form of a cup, provided with a central hole 72 in its bottom 74. The compensation piece 76 surrounds the connection fitting 18 at a distance C. Two sealing rings 78, 80 are provided between the compensation piece 76 and the drainage pipe 34 or the bottom 14 of the sink 12. The sealing ring 78 between the compensation piece 76 and the pipe drain 34 is n-shaped in cross section. The sealing ring 78 overlaps an edge 82 of the drainage tube 34, which projects in a chalice shape radially outwards, closing it upwards, seen in the vertical direction VR. In this case, the n-shaped sealing ring 78 abuts with a thickened sealing lip 84 on an inlet 86 of the drain pipe 34, which is adjacent to the edge 82 of the drain pipe 34. The sealing ring 78 penetrates into a circumferential cutout 88 in the underside 90 of the compensation piece 76.

The sealing ring 80 between the compensation piece 76 and the stack 12 is arranged in a surrounding groove 92 on an upper side 94 of the compensation piece 76. The compensation piece 76 is enlarged radially outwards for this purpose at its end. 96. The groove 92 is semi-circular in cross-section, so that the sealing ring 80 is shaped to match the groove 92 and has sealing lips 98, 100 directed radially inward and outward in cross section, so that this sealing ring 80 covers the entire upper side 94 of the compensation piece 76 and can be pressed in particular by the side walls 102, 104 of the groove 92 with a high pressure against the bottom 14 of the stack 12.

It is conceivable that the mounting of the drainage device 10 is simple due to the design according to the invention. First, the fluid flow part 24 is inserted into the connection fitting 18 and the fixing device 54 in the form of a screw is inserted into the fluid flow part 24. The screw head 54 pointing upwards is In this case, it bears against the bottom of the fluid circulation part 24 and during the fastening process of the screw 54 pulls the part 24 with its support edge pointing outwards towards the counter support 22 of the connection fitting 18, so so that a fluid-tight connection is also achieved in this connection area. Preferably, to obtain this seal, at least the free bearing edge of the fluid circulation part 24 is configured as flexible elastic to obtain a kind of lip seal. The drain tube 34 is then prepared by arranging the sealing ring 78 on it. The compensation piece 76 is then placed on the sealing ring 78, which occupies the other sealing ring 80. The drainage tube 34 is then brought into position on the lower side 106 of the basin 12 and fixed. with clamping and sealing effect on the basin 12 by means of the screw 54 that can be screwed into the thread 56 of the drainage tube 34. Finally, the fluid blocking piece 26 and the basket 44 of the fixing installation are inserted 30 in hole 60 of screw 54.

To block the flow of fluid from the closure device 10, it is only necessary to move the handle 44 axially downwards by hand, so that the sealing lips 36, 38 of the fluid blocking part 26 They rest on the fluid flow part 24. To release the fluid flow, only a movement of the activation device 30 in the opposite direction is necessary.

The solution according to the invention therefore has the advantage that a simplified assembly results, since the fixing device 54 of the activation device 30 can be tightened with the drain pipe 34 to thus mount the drain tube 34 in the stack 12 and configure the transition from the stack 12 to the drain tube 34 fluid-tight, the sealing rings 78 and 80 deploying, through the surface pressure thus generated, their fluid-tight action. fluid. The assembly can also be carried out very simply, since only a part of the drainage device 10 has to be inserted from the visible side into the stack 12 and another part has to be tightened with the lower side 106 of the stack 12. Since the installation of Fixation 54 is conceived as a component of the fixing installation 30, a functional integration results, which also implies a saving in necessary construction space, which has no correspondence in the state of the art.

Claims (11)

1. Drainage device for a sink (12), in particular in the form of a sink, consisting of at least one fluid circulation part (24) and a fluid blocking part (26), at least one of which is movable by hand from a fluid circulation position (OS) between the battery (12) and a drainage tube (34) of the device to a fluid passage blocking position and vice versa by means of a activation installation (30), wherein the activation installation (30) has a fixing installation (54), by means of which the drainage tube (34) can be fixed fluid-tight in the basin (12). ), where the drainage tube (34) can be arranged at a distance from a bottom (14) of the basin (12) by means of a compensation piece (76) in the form of a cup, provided with a central hole (72 ) at its bottom (74), characterized in that between the compensation piece (76) and the drainage tube (34) there is a ring of es tank (78) with an n-shaped cross-section, which presents on its lower side directed towards the drainage tube (34) a circumferential groove, in which the edge of the drainage tube (34) fits. Drainage device according to claim 1, characterized in that the fastening device (54) is a preferably centrally arranged screw, which can be screwed into a thread (56) and/or into at least one other component of the pipe. drain (34). 3. Drainage device according to claim 2, characterized in that the screw (54) is a hollow screw and that a bolt (62) is arranged axially movable in its central hole (60) as a support for the fluid blocking part. (26). Drainage device according to one of the preceding claims, characterized in that a basket (46), preferably with at least one particularly round or slot-shaped hole (48), is attached to the fluid blocking part (26). . Drainage device according to one of the preceding claims, characterized in that the fluid circulation part (24) is formed by a sieve, especially in the form of a flange, with at least one hole (28, 32), which can be insert into a connection fitting (18) of the battery (12). Drainage device according to one of the preceding claims, characterized in that the n-shaped sealing ring (78) overlaps an edge (82) projecting chalice-shaped radially outwards from the drainage pipe (34). . Drainage device according to one of the preceding claims, characterized in that the n-shaped sealing ring (78) is supported by a thickened sealing lip (86) on an inlet (84) of the drainage pipe (34). , which is preferably adjacent to the edge (82) of the drain tube (34). Drainage device according to one of the preceding claims, characterized in that the sealing ring (80) is arranged between the compensation part (76) and the basin (12) in a circumferential groove (92) on an upper side ( 94) of the compensation piece (76). Basin with a drainage device (10) arranged therein according to one of the preceding claims, characterized in that its bottom (14) is made seamless, in the sense of appendage-free, with the exception of the transition from the bottom (14) to the tube-shaped connection fitting (18). Battery according to claim 9, characterized in that the round tube-shaped connection fitting (18) is formed in a hole (16) of the battery (12), which is inserted at its free end (20) inwards. and in that the free end (20) of the connection fitting (18) forms a counter support (22) for the fluid circulation part (24), which rests on the counter support (22). Battery according to claim 9 or 10, characterized in that the battery (12) is made of a hardened polymerized binder and a composite material which has fillers inserted therein.