EP1961873A1 - Movement device for moving a sealing element for sealing a drain opening - Google Patents

Abstract

The device has a hydraulic cylinder (148), and a water supply conduit (174) connected with the hydraulic cylinder for moving a sealing element (120) from a position to another position, and from the latter position to the former position. The water supply conduit is separated from a water discharge conduit (178), while the water discharge conduit is connected with the hydraulic cylinder. A hydraulic drive device is connected with a valve device, while the water discharge conduit is connected with the hydraulic cylinder.

Description

• einem Hydraulikzylinder,
• einer Wasserzuführleitung, die mit dem Hydraulikzylinder verbindbar ist, um das Verschlusselement von einer ersten Stellung in eine zweite Stellung zu bewegen, und
• einer Wasserabführleitung, die mit dem Hydraulikzylinder verbindbar ist, um das Verschlusselement von der zweiten Stellung in die erste Stellung zu bewegen.

The present invention relates to a movement device for moving a closure element for closing a drain opening, in particular a drain opening of a sink or a washstand, wherein the movement device comprises a hydraulic drive device

• a hydraulic cylinder,
• a water supply line which is connectable to the hydraulic cylinder to move the closure element from a first position to a second position, and
• a water discharge line connectable to the hydraulic cylinder to move the closure element from the second position to the first position.

Such a movement device is from the DE 42 41 023 A1 known.

In this known movement device for moving a closure element with a hydraulic drive device, a water supply line is connected to the hydraulic cylinder in order to move the closure element from an open position into a closed position. In order to move the shutter member from the closed position to the open position, a valve disposed in a water discharge pipe is opened, whereby the pressurized water from the water supply pipe passes through the water discharge pipe into a drain pipe, so that a spring disposed in the hydraulic cylinder is capable of lifting a piston connected to the closure element so that the water can flow out through the drainage opening.

It is disadvantageous that the water from the water supply during the entire time in which the closure element is in the open position, flows through the water discharge into the drain pipe, which has a very significant water consumption.

The present invention has for its object to provide a moving device of the type mentioned, the hydraulic drive device is operated with low water consumption.

This object is achieved in a movement device having the features of the preamble of claim 1 according to the invention in that the water supply is separated from the water discharge, while the water discharge is connected to the hydraulic cylinder.

Thus, in the movement device according to the invention, no water passes directly from the water supply line into the water discharge line, while the water discharge line is connected to the hydraulic cylinder in order to move the closure element from the second position to the first position.

In particular, when the first position of the closure element is the open position of the closure element, no water therefore passes from the water supply line into the water removal line, while the closure element is in the open position.

As a result, the water consumption, which is required for operation of the hydraulic drive device of the movement device according to the invention, significantly reduced.

In a preferred embodiment of the invention, it is provided that the hydraulic drive device comprises a valve device, by means of which the Wasserabführleitung is connectable to the hydraulic cylinder, while the Wasserzuführleitung is separated from the Wasserabführleitung.

Such a valve device may comprise a plurality of valves, by means of which the connection between the hydraulic cylinder and the water supply line on the one hand and the connection between the hydraulic cylinder and the Wasserabführleitung other hand, can be opened or closed separately.

Alternatively, it can also be provided that the valve device comprises a three / two-way valve to which the water supply, the water discharge and the hydraulic cylinder are connected.

The valve device can be magnetically controlled, for example.

To ensure that the valve device is in a well-defined, desired valve position in case of failure of a power supply of the valve device, it is advantageous if the valve device comprises a return element which biases the valve device in one of its valve positions.

Preferably, it is provided that the return element, for example, a return spring biases the valve device in that valve position in which the hydraulic cylinder is connected to the water discharge.

In order to be able to influence the speed with which the closure element is moved from the first position to the second position and / or from the second position to the first position, it can be provided that the hydraulic drive device has a throttle arranged between the hydraulic cylinder and the valve device includes.

A particularly compact design receives the hydraulic drive device, if it comprises a base body in which the hydraulic cylinder and a supply line to the hydraulic cylinder are formed and to which the valve device is mountable.

To ensure that the closure element is in a well-defined, desired position in case of failure of a power supply of the movement device, it is advantageous if the movement means comprises a return element which biases the closure element in the second position.

Such a return element may in particular comprise a spring element.

It is preferably provided that the second position of the closure element is an open position in which the closure element releases the drainage opening. This ensures that, even if the energy supply to the moving device fails and water continues to be supplied to a container which has the discharge opening, the water always flows out through the discharge opening and the container in question can not overflow.

A particularly simple construction of the movement device according to the invention results when a displacement direction of a piston in the hydraulic cylinder is substantially parallel to the direction of movement of the closure element from the first position to the second position.

It is particularly favorable in this case if the displacement direction of the piston is substantially collinear with respect to the direction of movement of the closure element.

Alternatively, however, it can also be provided that the displacement direction of a piston in the hydraulic cylinder is substantially antiparallel to the direction of movement of the closure element from the first position to the second position.

Furthermore, it can be provided that the hydraulic drive device comprises a deflection element for converting a displacement movement of a piston in the hydraulic cylinder in a non-collinear to the direction of displacement of the piston movement of the closure element.

Such a deflecting element may in particular comprise a pivotally held lever element.

By suitable design of the deflection element can be achieved that the deflection element converts the displacement of the piston in a translated or squat motion of the closure element.

In particular, in the conversion of the displacement of the piston in a squat motion of the closure element is achieved that for movement of the closure element, a lower pressure force on the piston or a lower restoring force of the return element is sufficient.

The water discharge line preferably opens into a sewer pipe, through which water which passes through the drainage opening closable by means of the closure element is removed.

By means of the movement device according to the invention, the closure element can be moved depending on the situation from the open position to the closed position or from the closed position to the open position.

The movement of the closure element by means of the hydraulic drive device is controlled by means of a control device of the movement device, said control device can receive actuating signals from an actuator and / or sensor signals of one or more level sensors, which have a desired maximum level or a desired minimum level of the drain opening Detect container having.

The movement device according to the invention responds quickly to the actuation of an actuating device or a sensor signal of a level sensor, is not susceptible to interference and brings the closure element in case of power failure in an overflow protected open position.

Furthermore, the movement device, for example by acoustic or optical actuation signals, provide feedback about the state of the movement device and / or the reception of an actuation signal and / or a movement of the closure element to a user of the movement device.

The hydraulic drive device has the advantages of, for example, an electromotive drive device the advantages of a fast switching time, a minimum number of moving parts, high reliability and a reduction in the required electrical connection power compared to a stroke time optimized motor solution.

Further, the hydraulic drive device can be easily biased by a mechanical spring in a desired rest position, which is taken in a power failure.

The lifting movement of the closure element can take place in the movement device according to the invention by a translatory drive system.

The lifting system can, with respect to the closure element, be arranged axially centrally or eccentrically.

The axis along which the piston is displaced in the hydraulic cylinder of the hydraulic drive device may be aligned parallel or antiparallel or even perpendicular or obliquely to the displacement axis of the closure element. Due to this flexibility of the relative arrangement of hydraulic cylinder and closure element, the space requirement of the movement device can be minimized.

A valve device for connecting the water discharge line to the hydraulic cylinder can be formed, for example, as a servo valve and integrated in a space-saving manner in a drain valve arrangement.

A compensation of different material thicknesses is possible by changing the effective length of the hydraulic cylinder or by spacers.

By dewatering the cylinder water, which has been introduced into the hydraulic cylinder to move the closure element from the first position to the second position, into a sewer pipe during the movement of the closure element from the second position to the first position is a constant replacement of the Hydraulic cylinder causes existing water, so that a dirt and algae formation is prevented.

A backflow of the cylinder water into the water supply pipe is effectively prevented in the moving device according to the invention in which the water supply pipe is separated from the water discharge pipe while the water discharge pipe is connected to the hydraulic cylinder.

If the hydraulic cylinder and the closure element are arranged parallel to the axis side by side, with the interposition of a deflecting element, thereby the height of the hydraulic drive device can be reduced.

Furthermore, it is possible to dispense with a guide pin in a screen body which is connected to the closure element in order to reduce the overall height of the combination of closure element and movement device.

Further features and advantages of the invention are the subject of the following description and the drawings of exemplary embodiments.

Fig. 1

eine schematische Darstellung einer Bewegungseinrichtung zum Bewegen eines Verschlusselements zum Verschließen der Abflussöffnung einer Spüle, die eine Steuereinrichtung, eine Betätigungseinrichtung und eine hydraulische Antriebsvorrichtung für das Verschlusselement umfasst;

Fig. 2

eine schematische perspektivische Darstellung einer Spüle mit einer Bewegungseinrichtung zum Bewegen des Verschlusselements zum Verschließen der Abflussöffnung;

Fig. 3

eine schematische Draufsicht von unten auf die Spüle aus Fig. 2;

Fig. 4

eine schematische Ansicht von hinten der Spüle aus den Fig. 2 und 3;

Fig. 5

eine schematische Seitenansicht von links der Spüle aus den Fig. 2 bis 4;

Fig. 6

einen schematischen Schnitt durch eine Abflussventilanordnung, die eine Abflussöffnung mit einem Verschlusselement und eine hydraulische Antriebsvorrichtung zum Bewegen des Verschlusselements umfasst, wobei sich das Verschlusselement in einer Offenstellung befindet;

Fig. 7

eine der Fig. 6 entsprechende Darstellung, wobei sich das Verschlusselement in einer Schließstellung befindet;

Fig. 8

eine schematische Seitenansicht einer zweiten Ausführungsform einer Abflussventilanordnung, die eine Abflussöffnung mit einem Verschlusselement und eine hydraulische Antriebsvorrichtung zum Bewegen des Verschlusselements umfasst;

Fig. 9

einen schematischen Schnitt durch die Abflussventilanordnung aus Fig. 8; und

Fig. 10

einen schematischen Schnitt durch eine dritte Ausführungsform einer Abflussventilanordnung, die eine Abflussöffnung mit einem Verschlusselement und eine hydraulische Antriebsvorrichtung zum Bewegen des Verschlusselements umfasst, wobei die hydraulische Antriebsvorrichtung ein Umlenkelement zur Umwandlung einer Verschiebungsbewegung eines Kolbens in einem Hydraulikzylinder in eine der Verschiebungsrichtung des Kolbens entgegengesetzt parallele Bewegung des Verschlusselements umfasst, wobei sich das Verschlusselement in einer Schließstellung befindet.

In the drawings show:

Fig. 1

a schematic representation of a movement device for moving a closure element for closing the drain opening of a sink, which comprises a control device, an actuating device and a hydraulic drive device for the closure element;

Fig. 2

a schematic perspective view of a sink with a movement device for moving the closure element for closing the drain opening;

Fig. 3

a schematic plan view from below of the sink Fig. 2 ;

Fig. 4

a schematic view from behind the sink from the Fig. 2 and 3 ;

Fig. 5

a schematic side view of the left of the sink from the Fig. 2 to 4 ;

Fig. 6

a schematic section through a drain valve assembly comprising a drain opening with a closure element and a hydraulic drive device for moving the closure element, wherein the closure element is in an open position;

Fig. 7

one of the Fig. 6 corresponding representation, wherein the closure element is in a closed position;

Fig. 8

a schematic side view of a second embodiment of a drain valve assembly comprising a drain opening with a closure element and a hydraulic drive device for moving the closure element;

Fig. 9

a schematic section through the drain valve assembly Fig. 8 ; and

Fig. 10

a schematic sectional view of a third embodiment of a drain valve assembly comprising a drain opening with a closure element and a hydraulic drive device for moving the closure element, wherein the hydraulic drive device, a deflection element for converting a displacement movement of a piston in a hydraulic cylinder in one of the direction of displacement of the piston opposite parallel movement of the closure element, wherein the closure element is in a closed position.

Identical or functionally equivalent elements are denoted by the same reference numerals in all figures.

One in the Fig. 1 to 7 illustrated, as a whole with 100 designated sink comprises a substantially horizontal sink surface 102, in which a main basin 104 and a smaller and less deep additional basin 106 are arranged and via which a battery tank 107 arranged behind the additional basin 106 rises.

The additional basin 106 is provided at its bottom with a drain opening 108.

The main basin 104 is provided at its bottom with a drain opening 110.

How best of the Fig. 6 and 7 As can be seen, the drainage opening 110 of the main basin 104 is arranged on the bottom 126 of a drain opening recess 112, which protrudes downwardly from the bottom 114 of a closure element receiving recess 116.

The closure member receiving recess 116, in turn, projects downwardly from the bottom 118 of the main basin 104.

The outflow opening 110 can be closed by means of a closure element 120, which is formed substantially rotationally symmetrical about a vertical closure element axis 122.

The closure member 120 includes a substantially cylindrical closure member body 124 which penetrates a central through-hole in the bottom 126 of the drainage aperture depression 112.

The central through-hole at the bottom 126 of the drain opening recess 112 is surrounded by a plurality of further through-holes 128, through which water can exit downwardly from the drain hole recess 112 into an angled drain pipe section 130.

The upper portion of the closure element main body 124 is surrounded by a strainer element 132 like a collar. The Siebkorbelement 132 is provided with circumferentially equidistantly distributed Siebdurchgangsöffnungen 134.

Underneath the screen basket element 132, a sealing collar 136, which likewise surrounds the closure element base body 124 in a collar-like manner, is arranged, from the outer edge of which an elastic sealing lip 138 which surrounds the sealing collar 136 in an annular manner protrudes.

How out Fig. 7 can be seen, this sealing lip 138 is in the closed position of the closure member 120 at the inner edge of the bottom 114 of the closure member receiving recess 116 and prevents so in the closed position that water from the closure member receiving recess 116 enters the drain opening recess 112.

The closure member 120, the closure member receiving recess 116, and the drain opening recess 112 together form a drain valve assembly 139.

Below the bottom 126 of the drain opening recess 112, the closure element main body 124 is displaceably guided in a hollow cylindrical retaining sleeve 140 along the closure element axis 122.

At the lower end 142 of the closure element main body 124 engages an upper end of a piston rod 144 of a piston 146, which is held along a coaxial with the central axis of the closure element 120 cylinder axis 150 slidable in a hydraulic cylinder 148.

The lower end face of the piston 146 divides the interior of the hydraulic cylinder 148 into an upper subspace 152a and a lower subspace 156b.

The upper end of the hydraulic cylinder 148 extends through a passage opening 154 in the wall of the drain pipe piece 130 into the interior of the drain pipe piece 130.

In this case, the outer circumferential surface of the hydraulic cylinder 148 is sealed relative to the edge of the passage opening 154 by means of a ring seal 156, so that no water from the interior of the drain pipe piece 130 can pass through the passage opening 154 to the outside.

In the lower part of 152b of the hydraulic cylinder 148, a compression coil spring 158 is arranged, which is supported at its upper end to the lower end face of the piston 146 and at its lower end to the lower end wall 160 of the hydraulic cylinder 148.

This compression coil spring 158 acts as a return element 162, which the piston 146 in its upper end position and thus the closure member 120 in his in Fig. 6 illustrated open position biases, in which the closure element 120, the drain opening 110 releases.

The upper subspace 152a of the interior of the hydraulic cylinder 148 is connected via a pressure line 164 to a port 166 of a three / two-way valve 168, which is formed as an electric servo valve 170.

To an input 172 of the three / two-way valve 168, a water supply line 174 is connected.

To an outlet 176 of the three / two-way valve 168, a Wasserabführleitung 178 is connected, which opens as well as the drain pipe section 130 in a sewer line 180.

In the in Fig. 6 shown first state of the three / two-way valve 168 is connected to the port 166 pressure line 164 through the three / two-way valve 168 connected to the output 176 Wasserabführleitung 178, while connected to the input 172 Wasserzuführleitung 174 is disconnected from the pressure line 164 connected to the port 166.

In the in Fig. 7 illustrated second state of the three / two-way valve 168 is connected to the input 172 Wasserzuführleitung 174th is connected by the three / two-way valve 168 with the pressure line 164 connected to the port 166, while the water discharge line 178 connected to the outlet 176 is disconnected from the pressure line 164 connected to the port 166.

To switch between the in Fig. 6 illustrated first state and the in Fig. 7 illustrated second state of the three / two-way valve 168 is an adjusting unit 182, which is held by means of a holder 184 on the drain pipe piece 130.

This actuator 182 is connected via a power line 186 to a controller 188 (see Fig. 1 ) connected.

The control device 188 comprises a programmable microcontroller arranged in a housing 190.

The control device 188 is connected via a signal line 192 to an actuating device 194, which comprises an actuating element 196, which is arranged, for example, on the underside of the battery bank 107.

The actuator 196 includes a sensor 198, which may be formed, for example, as a capacitive sensor or as a piezoelectric sensor.

The sensor 198 may be inserted into a matching recess on the underside of the sink 100 or into a through hole provided on the sink 100.

For use on a sink 100 of an electrically non-conductive material, in particular of a plastic material, of a composite material or of a natural stone material, in particular a capacitive sensor 198 is suitable. Such a capacitive sensor takes a change in capacitance true, which arises because a user of the sink 100 a body part, such as a finger, brings in the detection range of the sensor 198.

For use on a sink 100 of an electrically conductive material, in particular of a chromium-nickel stainless steel, is particularly suitable a piezoelectric sensor 198, which responds to the pressure in a touch of the top of the sink 100 in the detection range of the sensor 198 through a body part, for example a finger, of the user is generated.

Such a piezoelectric sensor can also be used in the case of a sink 100 made of a non-electrically conductive material.

In any case, i. when using a capacitive or a piezoelectric sensor 198 receives the microcontroller of the controller 188 via the signal line 192 in response of the sensor 198, a signal, depending on which the microcontroller controls the actuator 182 of the three / two-way valve 168.

The microcontroller, the actuator 182 and the actuator 196 are supplied with the required electrical power by means of a connectable to the public power grid connection 200, which is connected to the controller 188.

The piston 146, the hydraulic cylinder 148, the three / two-way valve 168 and its actuator unit 182, the water supply pipe 174, the pressure pipe 164, and the water discharge pipe 178 together form a hydraulic drive device 202 for the shutter member 120.

The hydraulic drive device 202, the control device 188, the actuating device 194 and the mains connection 200 together form a movement direction 204 for moving the closure element 120 of the drain valve arrangement 139.

When the closure member 120 is in the in Fig. 6 is shown open position and the microcontroller of the control device 188 receives an actuating signal from the actuator 196, which is recognized as a regular actuation signal due to the conditions defined in the control program of the microcontroller controls the microcontroller due to this actuation signal movement of the closure member 120 from the open position to the closed position in that by means of the actuator 182, the three / two-way valve 168 of the in Fig. 6 illustrated first state in the in Fig. 7 shown second state is switched.

As a result, the water supply pipe 174, via which cold water from the cold water supply network is present at the three / two-way valve 168 under an increased pressure, connected to the pressure line 164, so that the water under increased pressure from the water supply line 174 through the pressure line 164 enters the upper part of the chamber 152a of the interior of the hydraulic cylinder 148 and the piston 146 against the restoring force of the compression coil spring 158 in its lower end position and thus the closure member 120 from its open position in the in Fig. 7 shown closed position moves.

In this case, the desired movement speed of the closure element 120 can be adjusted by means of the throttle 165 arranged in the pressure line 164.

Alternatively, a throttle for adjusting the speed of movement of the closure member 120 may also be attached to the piston mechanism.

Further, a check valve 167 connected in parallel with the throttle 165 may be provided which facilitates the flow of water into the hydraulic cylinder 148 and prevents undesirable backflow of water from the hydraulic cylinder 148 to the three / two-way valve 168.

If the actuating element 196 is actuated again when the closure element 120 is in the closed position, the microcontroller of the control device 188 controls a movement of the closure element 120 from the closed position to the inward position due to this further actuation signal Fig. 6 shown open position by the three / two-way valve 168 by means of the actuator 182 of the in Fig. 7 illustrated second state in the in Fig. 6 is switched shown in the illustrated first state in which the pressure line 164 is connected to the Wasserabführleitung 178.

After this switching operation, the compression coil spring 158 pushes the piston 146 upwards, whereby the volume of water located in the upper part space 152 of the interior of the hydraulic cylinder 148 through the pressure line 164 and the three / two-way valve 168 in the Wasserabführleitung 178 and from there into the sewer line 180 passes.

At the same time, the closure element 120 is moved by the piston rod 144 from the closed position into the in Fig. 6 shown open position moves.

By renewed actuation of the actuating element 196, a further closing operation of the closure element 120 can now be triggered.

The three / two-way valve 168 formed as the electric servo valve 170 has a return spring 205 (see FIG Fig. 1 ), which the three / two-way valve 168 in the in Fig. 6 illustrated biased first valve position, in which the interior of the hydraulic cylinder 148 is connected to the water discharge 178.

In the event of a power failure, there is thus no pressure at the top of the piston 146, so that the compression coil spring 158 in this case the piston 146 and thus the closure element 120 in the in Fig. 6 shown open position moves.

This ensures that in case of power failure, the drain opening 110 is open and even when water to the main basin 104 can not overflow the same.

The discharge rate of the water from the upper subspace 152a of the hydraulic cylinder 148 can be adjusted to a desired value by means of the throttle 165, so that the movement speed of the closure element 116 can be set to a desired value during the movement from the closed position to the open position.

One in the Fig. 8 and 9 illustrated second embodiment of a moving means 204 for moving the shutter member 120 differs from that in the Fig. 1 to 7 illustrated first embodiment in that the hydraulic cylinder 148 is not formed as a separate component, which is connected via a separate, for example, designed as a flexible hose, pressure line 164 with the three / two-way valve 168, but the hydraulic cylinder 148 instead as a Recess is formed in a base body 206, which further comprises a pressure line 164 in the form of a formed on the base 206 bore 208 and further formed as a recess on the base 206 water supply chamber 210 which via a seal 212 to the (in Fig. 8 and 9 not shown) Wasserzuführleitung 174 is connectable.

The three / two-way valve 168 configured as an electric servo valve 170 is mounted to a side wall of the main body 206 via a gasket 214 in this embodiment so that the input of the three / two-way valve 168 is in fluid communication with the water supply chambers 210 and the connection of the three / two-way valve 168 is in fluid communication with the pressure line 164.

Further, the three / two-way valve 168 has an output 176 for connecting the (only in Fig. 8 shown) Wasserabführleitung 178.

In this embodiment, the hydraulic drive device 202 is summarized in a compact assembly consisting of the main body 206 and the flanged three / two-way valve 168, which can be handled as a unit and mounted on the drain pipe piece 130 without, as in the first embodiment, for the installation of the three / two-way valve 168, a separate bracket 184 is required.

The embodiment according to the Fig. 8 and 9 is therefore particularly easy to install and dismantled in case of maintenance or repair.

Moreover, the right in the Fig. 8 and 9 illustrated second embodiment of a moving means 204 for moving the closure member 120 with the in the Fig. 1 to 7 illustrated in the first embodiment, reference is made to the above description in this regard.

An in Fig. 10 illustrated third embodiment of a moving means 204 for moving the shutter member 120 is different from that in the Fig. 1 to 7 illustrated first embodiment in that the piston rod 144 of the piston 146, which is slidably mounted in the hydraulic cylinder 148 is not arranged coaxially to the closure element main body 124, but in a direction perpendicular to the cylinder axis 150 of the hydraulic cylinder 148 extending direction relative to the central axis of the closure element base body 124 is.

Further, the hydraulic cylinder 148 is rotated in this embodiment, compared to the first embodiment by 180 °, so that now serving as the return element 162 compression coil spring 158 is disposed in the upper part of 152a of the hydraulic cylinder 148 and the lower subspace 152b of the interior of the hydraulic cylinder 148 with the pressure line 164 is connected to be filled with pressurized water can.

The lower end of the piston rod 144 is pivotally connected to the free end of a first lever arm 216 of a two-armed lever 218, which is pivotally mounted on the wall of the drain pipe piece 130 about a horizontal pivot axis 220.

The free end of the first lever arm 216 opposite the second lever arm 222 of the two-armed lever 218 acts on the lower end of the closure element main body 124, so that the closure member 120 moves by a movement of the piston 146 from top to bottom in turn from bottom to top in the open position is, while the closure member 120 is moved by a movement of the piston 146 from bottom to top in turn from the open position down to the closed position.

In this embodiment, therefore, the displacement direction of the piston 146 in the hydraulic cylinder 148 is anti-parallel to the direction of movement of the closure element 120 from the closed position to the open position or vice versa.

Since the first lever arm 216 of the two-armed lever 218, on which the piston rod 144 engages, is longer than the second lever arm 222 of the two-armed lever 218, which acts on the closure element main body 124, the two-armed lever 218 acts as a deflection element 224, which controls the displacement of the Piston 146 converts into a reduced movement of the closure member 120.

For movement of the closure element 120 in this embodiment, therefore, a lower pressure force on the piston rod 144 or a lower restoring force of the restoring element 162 is sufficient than in the first embodiment.

The first lever arm 216 of the two-armed lever 218 is arranged in a cavity 226 of a fitting 228 integrally formed on the drain pipe piece 130, which is fluid-tightly sealed from the environment, so that water entering the cavity 226 from the drain pipe piece 130 can not escape to the outside.

The hydraulic cylinder 148 is not held directly on the drain pipe piece 130 but on the fitting 228 in this embodiment.

For the rest, the in Fig. 10 illustrated third embodiment of a moving means 204 for moving the shutter member 120 in structure and function with the in the Fig. 1 to 7 illustrated in the first embodiment, reference is made to the above description in this regard.

Claims (18)

Movement device for moving a closure element (120) for closing a drain opening (108), in particular a drain opening (108) of a sink (100) or a washstand, comprising a hydraulic drive device (202) a hydraulic cylinder (148), - A water supply line (174) which is connectable to the hydraulic cylinder (148) to move the closure element (120) from a first position to a second position, and a water discharge line (178) connectable to the hydraulic cylinder (148) for moving the closure element (120) from the second position to the first position, characterized,
in that the water supply pipe (174) is separated from the water discharge pipe (178) while the water discharge pipe (178) is connected to the hydraulic cylinder (148). Movement device according to claim 1, characterized in that the hydraulic drive device (202) comprises a valve device by means of which the Wasserabführleitung (178) is connectable to the hydraulic cylinder (148), while the Wasserzuführleitung (174) is separated from the Wasserabführleitung (178). Movement device according to claim 2, characterized in that the valve device comprises a three / two-way valve (168) to which the water supply line (174), the Wasserabführleitung (178) and the hydraulic cylinder (148) are connected. Moving device according to one of claims 2 or 3, characterized in that the valve device is magnetically controlled. Movement device according to one of claims 2 to 4, characterized in that the valve device comprises a return element (205) which biases the valve device in one of its valve positions. Moving device according to claim 5, characterized in that the return element biases the valve device in that valve position in which the hydraulic cylinder (148) with the Wasserabführleitung (178) is connected. Movement device according to one of claims 2 to 6, characterized in that the hydraulic drive device (202) comprises a between the hydraulic cylinder (148) and the valve device arranged throttle (165). Movement device according to one of claims 2 to 7, characterized in that the hydraulic drive device (202) comprises a base body (206) in which the hydraulic cylinder (148) and a supply line (208) to the hydraulic cylinder (148) are formed and on the the valve device is mountable. Movement device according to one of claims 1 to 8, characterized in that the movement device (204) comprises a restoring element (162) which biases the closure element (120) in the second position. Movement device according to claim 9, characterized in that the restoring element comprises a spring element (158). Movement device according to one of claims 1 to 10, characterized in that the second position of the closure element (120) is an open position in which the closure element (120) the drain opening (108) releases. Movement device according to one of claims 1 to 11, characterized in that a displacement direction of a piston (146) in the hydraulic cylinder (148) is substantially parallel to the direction of movement of the closure element (120) from the first position to the second position. Movement device according to one of claims 1 to 12, characterized in that the displacement direction of the piston (146) is substantially collinear with the direction of movement of the closure element (120). Movement device according to one of claims 1 to 11, characterized in that the displacement direction of a piston (146) in the hydraulic cylinder (148) is substantially antiparallel to the direction of movement of the closure element (120) from the first position to the second position. Movement device according to one of claims 1 to 14, characterized in that the hydraulic drive device (202) has a deflection element (224) for converting a displacement movement of a piston (146) in the hydraulic cylinder (148) into a direction of displacement of the piston (146). collinear movement of the closure element (120). Moving device according to claim 15, characterized in that the deflecting element (224) comprises a pivotably held lever element (218). Movement device according to one of claims 15 or 16, characterized in that the deflection element (224) converts the displacement of the piston (146) into a translated or reduced movement of the closure element (120). Movement device according to one of claims 1 to 17, characterized in that the Wasserabführleitung (178) opens into a sewer line (180), through which water, which passes through the closable by means of the closure element (120) discharge opening (108) is discharged.

Images