ES2856856T3 - Drain adapter - Google Patents

Abstract

Drain adapter (1) for a cistern, comprising a valve body (2) with a sealing element (4) that collaborates with a valve seat (3) and with a float (5), where the valve body valve (2) is movable with a sealing element (4) from the valve seat (3) along a median axis (M) from a rest position to a washing position and from the washing position to the rest position, and a float chamber (6) with a hole (28) through which the valve body (2) extends, where the float (5) is movable within the float chamber (6 ) along the central axis (M) and collaborates hydraulically with the float chamber (6), wherein the float chamber (6) comprises at least one control passage (7), which is configured for the activation of a first wash with a first quantity of wash, through which, as soon as a level of the wash water (S) surrounding the drain adapter (1) has dropped or at the height of the control passage (7), air can enter from areas (9) outside the float chamber (6) to the float chamber (6), in such a way that the pressure relationships between the float chamber (6) and the zones (8) outside the float chamber (6), where the float (5) is mobile during the compensation of the pressure relations from the washing position to the starting position. rest, where the central axis (Z) extends in the center through the float chamber (6), where the valve body (2) is disposed laterally with respect to the float chamber (6), in such a way that the median axis (M) meets a transverse displacement (Q with respect to the central axis (Z) of the float chamber (6) and where the drain adapter (1) further comprises a control unit (12) for the control of a second quantity of washing, wherein the control unit (12) conditions, when a level is reached that of the water provided for the second amount of washing with a closing weight (13), a closing force on the valve body (2), where the closing force is switchable or transferable through a clamping member. switching (14) from the control unit (12) onto the valve body (2).

Description

DESCRIPTION

Drain adapter

TECHNICAL FIELD

The present invention relates to a drain adapter according to the preamble of claim 1 STATE OF THE ART

Drain adapters for activating flushing from a cistern are known from the state of the art. In particular, drain adapters are known for selective full discharge or partial discharge activation.

For example, document EP 0722 02 describes such a washing installation. For the partial discharge, a weight body is arranged, which can optionally be connected to the valve body.

Although very good results have been achieved with the washing plant according to EP 0722020, such washing plants have the drawback of poor flexibility. Especially when it comes to adapting the washing quantities.

An example can still be found in EP 2 098 649. By means of two floats, which are offset laterally with respect to the median axis of the valve body, two quantities of washing water independent of each other can be selected.

REPRESENTATION OF THE INVENTION

Starting from this state of the art, an object of the invention is to indicate a drain adapter, which solves the drawbacks of the state of the art. In particular. a preferred task is to indicate a drain adapter, which can be used more flexibly with regard to the adjustment possibilities for different amounts of washing.

This task is solved by the object according to claim 1. Accordingly, a drain adapter comprises for a cistern a valve body with a sealing element cooperating with a valve seat and with a float, wherein the body valve is movable with a sealing element from the valve seat along a median axis from a rest position to a flushing position and from the flushing position to the rest position, and a float chamber with a orifice through which the valve body extends, wherein the float is movable within the float chamber along the central axis and cooperates hydraulically with the float chamber. The float chamber comprises at least one control step, which is configured to activate a first wash with a first wash quantity through which, as soon as a level of the wash water surrounding the drain adapter has dropped at the level of the control passage, air can enter from areas outside the float chamber to the float chamber, so that the pressure relationships between the float chamber and the areas outside the float chamber can be compensated for. float, wherein the float is movable during compensation of pressure relationships from the wash position to the rest position. The central axis extends in the center through the float chamber. The valve body is arranged laterally offset from the float chamber, in such a way that the median axis meets a transverse offset from the central axis of the float chamber. Furthermore, the drain adapter comprises a control unit for controlling a second wash quantity, wherein the control unit conditions, when a water level provided for the second wash quantity is reached with a closing weight, a closing force on the valve body, wherein the closing force is switchable via a switching member from the control unit on the valve body. Through transverse displacement, the outer shape of the drain adapter can be optimized. In particular, through the transverse movement on one side, a space zone is obtained, in which other functional elements can be arranged to control the amount of washing water. In this sense, the flexibility for adjusting the amount of washing is increased, because space is created for the arrangement of the functional elements.

Preferably, the valve seat is also arranged laterally offset from the float chamber. The valve seat is particularly preferably arranged with the same offset as the valve body relative to the float chamber. In this way, the same displacement as the valve body relative to the float chamber can be achieved. In this way, a symmetrical arrangement between the valve seat and the valve body can be achieved, so that the float chamber is offset laterally relative to the valve seat and the valve body.

Preferably, said median axis and said central axis extend parallel to each other. In the mounting position, the middle axis and the central axis are in the vertical. The middle part preferably extends centrally through the valve body.

Preferably, the minimum distance transverse either the median axis or the central axis between the wall of the float chamber and the valve body is less than 2 millimeters, in particular less than 1 or 0.5 millimeters. That is, the valve body is arranged very close to the wall of the float chamber.

The minimum distance is preferably always such that a small clearance is present between the chamber wall and the valve body.

With regard to the minimum distance, it can also be said that the float chamber extends eccentrically around the valve body, seen from the place of the minimum distance.

Preferably, the float chamber has a partition wall downwards, which is arranged above the sealing element. In this case, the partition wall closes the float chamber downwards or prepares a limitation of the float chamber. The partition wall has an opening, through which the valve body extends.

The opening and the valve body are preferably dimensioned such that clearance is present between the valve body and the opening. Through this set, water can enter the float chamber when the cistern is filled.

To raise said clearance, the valve body can have an inlet which is arranged in such a way that the inlet is positioned at the height of the partition wall when the valve body is in the rest position.

Preferably, the cross section of the float chamber, viewed in the direction of the central axis, is essentially constant over the entire height. In this way, a uniform and continuous movement of the valve body can be achieved over the entire height of the movement.

The float chamber therefore preferably has a circular cylindrical cross section, wherein the valve body is arranged eccentrically with respect to this circular cylindrical cross section.

Preferably, a reservoir is present above the float chamber, which leads with an opening to the float chamber, in such a way that as the water level in the cistern drops, water flows from the reservoir to the chamber. float. Through the circulation of water, a possible loss of water in the float chamber can be compensated downwards, in particular along the valve body.

The opening has a diameter of a few millimeters. The opening is at a height position that is clearly above the maximum float position.

According to the invention, the control step is configured to trigger a first wash with a first amount of wash. Also the drain adapter comprises a control unit for controlling a second amount of washing. The control unit conditions, when a water level provided for the second amount of washing with a closing weight is reached, a closing force on the valve body, wherein the closing force is switchable through a member switching from the control unit on the valve body.

Preferably, the control unit is arranged essentially in the area of space resulting from lateral movement transverse to the float chamber. In other words: the control unit is located laterally in the area, where the distance between the float chamber and the valve body is minimal. That is, the control unit is in the area of space that results from the displacement described above. The control unit represents in this case said functional element. Again expressed in other words: preferably the control unit is located with respect to the float chamber essentially on the opposite side of the maximum expansion.

Preferably, the control unit lies with respect to a direction transverse to the median axis or to the central axis, entirely in a geometric circular cylinder, which extends around the median axis and extends through the maximum expansion of the chamber. float.

In a particularly preferred manner, the closing weight of the control unit, viewed transversely to the central axis, is arranged opposite the float chamber and can be moved up and down alongside the float chamber. float. The closing weight is therefore preferably located in said space area, in particular in the geometric circular cylinder.

Preferably, the switching member automatically establishes a holding connection with the valve body during lifting of the control unit.

Preferably, the control unit further comprises a bearing bar. In a particularly preferred manner, the switching member is arranged at a lower end of the bearing bar. In a particularly preferred manner, the closing weight is mounted fixedly on the bearing bar or adjustable relative to the bearing bar.

Preferably, the height position of the closing weight is configured adjustable over an adjustment zone. In other words, the closing weight can be moved over the adjustment zone. In the case of a higher position, less water is removed during the washing process than in the case of a lower position.

Preferably, the first wash is a full discharge wash and the second wash is a partial discharge wash. That is to say, in the case of an activation of the closing weight, a partial discharge wash is activated and when the control step is reached through the resistance s it activates a full discharge wash.

Alternatively, the first wash is a partial discharge wash and the second wash is a full discharge wash. That is, in the case of an activation of the closing weight a full flush wash is activated and in the event that the control passage through the water level is reached, a partial flush wash is activated. Preferably, several control passages are arranged on different height positions, wherein the drain adapter further comprises at least one closing element, with which one of the control passages can be released and the others closed. control steps.

The closure element is preferably a slide which is movably housed on the outer side of the drain adapter.

Preferably, the closure weight adjustment zone extends in height at least to below the highest control weight. In this way an overlap of the heights between the control unit and the control passage can be achieved, which increases the flexibility of the adjustment of the water intake.

Other embodiments are indicated in the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

The preferred embodiments of the invention are described below with the aid of the drawings, which serve for explanation only and should not be construed as limitation. In the drawings:

Figure 1 shows a schematic representation of the drain adapter according to the invention in the rest position.

Figure 2 shows a schematic representation of drain adapter according to the invention during a full flush wash.

Figure 3 shows a schematic representation of drain adapter according to the invention during a partial discharge wash.

Figure 4 shows a sectional representation through the drain adapter according to the invention. Figure 5 shows another sectional representation through the drain adapter according to the invention, wherein the section is offset 90 ° with respect to the section according to Figure 4; and

Figure 6 shows a perspective view of the drain adapter according to the previous figures.

DESCRIPTION OF PREFERRED EMBODIMENTS

The figures show a drain adapter 1 for a cistern. The drain adapter 1 comprises a valve body 2 with a sealing element 4, cooperating with a valve seat, and a float 5-. The valve body 2 is movable with the sealing element 4 from the valve seat 3 along a median axis M from a rest position to a flushing position and from the flushing position to the rest position. In the flushing position, water can be discharged through the gap between valve seat 3 and the sealing element 4.

Furthermore, the drain adapter 1 comprises a float chamber 6. The float chamber 6 has a hole 28, through which the valve body 2 extends. The float 5 is movable in this case within the float chamber. 6 along the median axis M and hydraulically cooperates with the float chamber 6.5

The float chamber 6 comprises at least one control passage 7, through which air can enter, as soon as a level of the wash water S surrounding the drain adapter 1 has dropped to the level of the control passage 7, from zones 8 outside the float chamber 6 to the float chamber 6, in such a way that the pressure relationships between the float chamber 6 and zones outside the float chamber 6 can be compensated. During this compensation, the float can be moved from wash position to rest position. The float chamber 6 is here configured to extend in a circular cylindrical fashion around a central axis. The central axis Z extends in the center through the float chamber 6.

The valve body essentially extends along a median axis M and is designed to be movable in the direction of this median axis M.

The valve body 2 is arranged laterally offset from the float chamber 6, in such a way that the median axis M meets a transverse displacement relative to the central axis Z of the float chamber 6. The transverse displacement carries the reference sign Q.

The transverse displacement Q results in a space zone in the area of the reference sign R, in which a control unit 12 can be arranged in the embodiment shown. That is to say, laterally to the float chamber 6 the control unit 12 or parts thereof can be arranged, wherein the control unit 12 or said parts thereof could be moved up and down together with the float chamber 6. Besides the compact configuration, the advantage is that the functions can be used more flexibly with regard to wash amounts. In other words: the control unit 12 is arranged essentially in the area of space R resulting from the lateral movement transverse laterally to the float chamber or else the control unit 12 is essentially located relative to the float chamber 6 on the opposite side of the maximum Amax expansion of the float chamber 6.

The valve seat 3 is arranged in the same way offset relative to the float chamber 6. The valve seat 3 is here below the valve body 2.

The minimum distance A transversely to the median axis M or to the central axis Z between the wall of the chamber 9 of the float chamber 6 and the body of the valve 2 is preferably less than 2 millimeters, in particular less than 1 or 0, 5 millimeters. That is, the distance is very small, which is advantageous for the size of the space zone R. But the distance is preferably such that a contact is made between the wall of the chamber 9 and the body of the valve 2 In other words, a clearance is always present between the chamber wall 9 and the valve body 2. Preferably, the control unit 12 is located with respect to a direction transverse to the mid-axis or to the central axis entirely. in a geometric circular cylinder, which extends around the median axis M and extends through the maximum expansion of the float chamber. The maximum expansion in the transverse direction is shown in Figure 4, where it is identified by a line K. The line K thus forms the diameter of the circular cylinder around the median axis. In front of the line K, a line K 'is identified, which shows the other lateral limitation of the circular cylinder.

The float chamber 6 has a partition wall 10 downwards, which is located above the sealing element 4, where the partition wall 10 has an opening 25, through which the valve body 2 extends. The partition wall 10 closes the float chamber downward.

Between the partition wall 10 and the valve body 2 a certain clearance is present, through which the float chamber 6 can be filled with water from below. To raise said clearance, the valve body 2 can have an inlet 18, which is arranged in such a way that the inlet 18 is positioned at the height of the partition wall 10, when the valve body 2 is in the position resting.

Above and laterally, the float chamber 6 is surrounded by walls 29, 30. An opening 26 is arranged in the wall 30.

The cross section of the float chamber 6, viewed in the direction of the central axis Z, is essentially constant over the entire height.

In the embodiment shown, above the float chamber 6 a reservoir 11 is present, leading with an opening 24 to the float chamber, such that as the water level in the cistern decreases, water flows from the reservoir to the float chamber 6. The opening 24 has a diameter of a few millimeters. Through this opening 24 a loss of water from the float chamber 6 can be compensated.

The float 5 is configured in the embodiments shown as a hollow space, so that it experiences a lift in the water. The hollow space can in this case be filled with air.

With the aid of FIGS. 1 to 6, partial characteristics of the drain adapter 1 according to the invention are now explained more precisely.

In figure 1, the float 5 is in the rest position. The sealing element 4 rests in this case on the valve seat 3. In the case of activation of a first wash, the float 5 rises above an activation section 22. By virtue of the collaboration between the float 5 and float chamber 6, float 5 is moored in its washing position. The float 5 remains in its washing position until the level of the wash water has dropped to the level shown in figure 2. When this level is reached, air can enter through the control passage 7 into the float chamber 6 and the hydraulic balance between the float 5 and the float chamber 6 is disturbed, whereby the float 5 is lowered in the direction of the valve seat 3 from the washing position to the rest position.

A second wash is shown in Figures 3 to 5. Here the float 5 is raised with an activation section 23, which is here part of a control unit 12. In this case, an engagement takes place between the switching member 14 and the closing weight 13. The closing weight 13 It is here in the shape of a cup that is filled with water. As soon as the level of the wash water has now dropped to the level S shown in FIG. 6, the weight of the water in the closing weight 13 is activated and a force is applied to the float 5 via the switching member 14. By virtue of this force, the float 5 is then moved from its washing position in the direction of the valve seat 3 to its rest position.

As explained above, the control step 7 is configured for the activation of a first wash with a first amount of wash. Control unit 12 is configured to control a second amount of wash. The first wash quantity is preferably a full discharge wash quantity and the second wash quantity is preferably a partial discharge wash quantity.

In the embodiment shown, several control steps 7 are arranged. The control steps 7 are in this case at different heights. That is, the control passages 7 are distributed in the embodiment shown in their height above the height of the float chamber 6.

The drain adapter 1 further comprises at least one closure element 16, with which one of the control passages 7 can be released respectively and the other control passages 7 can be closed. That is, an installer You can define with the closing element which of the control steps 7 should be the active control step. The other control passages 7 are then correspondingly closed.

The closing weight 13 is adjustable by means of an adjustment zone 15. That is, the closing weight 13 can be adjusted in its height. In this way, a corresponding amount of wash water can be defined. Preferably, the adjustment zone 15 is in its height at least to below the highest control passage 7. In this way, an overlapping of the amounts of wash water can be achieved.

In the embodiment shown, the control unit 12 further comprises a bearing bar 24, wherein the switching member 14 is arranged at a lower end 28 of the bearing rod 27, and / or where the weight The closing device 13 is mounted on the bearing bar which is adjustable relative to the bearing bar 27. The switching element 14 is switched off via a correspondingly configured control surface 31, which is arranged here in the housing in the region float chamber 6.

Below the float chamber 6, the drain adapter comprises here a connection element 26, in which the valve seat 3 is arranged, wherein the connection element 32 can be connected to a cistern. The connection element 32 has several openings 33, through which the wash water can then flow towards the valve seat 3.

LIST OF REFERENCE SIGNS

1 Drain adapter

2 Valve body

3 Valve seat

4 Sealing element

5 Float

6 Float chamber

7 Control step

8 Areas outside the float chamber 9 Chamber wall

10 Partition wall

11 Deposit

12 Control unit

13 Closing weight

14 Switching body

15 Adjustment zone

16 Closing element

18 Entrance

22 Activation section

23 Trigger section

24 Aperture

25 Aperture

26 Aperture

27 Bearing bar

28 Lower end

29 Wall

30 Wall

31 Control surface

32 Connecting element

33 Openings

At minimum distances

Amax Maximum dilation

R Space zone

Q Cross displacement

M Middle axis

Z Central axis

K, K 'Circular cylinder limitation

S Wash water level

Claims (13)

1. Drain adapter (1) for a cistern, comprising a valve body (2) with a sealing element (4) that collaborates with a valve seat (3) and with a float (5), where the valve body (2) is movable with a sealing element (4) from the valve seat (3) along a median axis (M) from a rest position to a washing position and from the washing position to the rest position, and a float chamber (6) with a hole (28) through which the valve body (2) extends, where the float (5) is movable within the float chamber (6) along the central axis (M) and collaborates hydraulically with the float chamber (6), wherein the float chamber (6) comprises at least one control step (7), which is configured for the activation of a first wash with a first quantity of wash, through which, as soon as a water level of wash (S) that surrounds the drain adapter (1) has descended to the height of the control passage (7), air can enter from areas (9) outside the float chamber (6) to the float chamber (6 ), in such a way that the pressure relationships between the float chamber (6) and the areas (8) outside the float chamber (6) can be compensated, where the float (5) is mobile during compensation of the pressure relationships from the wash position to the rest position, wherein the central axis (Z) extends in the center through the float chamber (6), wherein the valve body (2) is disposed laterally displaced with respect to the float chamber (6), in such a way so that the median axis (M) meets a transverse displacement (Q with respect to the central axis (Z) of the float chamber (6). and wherein the drain adapter (1) further comprises a control unit (12) for the control of a second amount of washing, wherein the control unit (12) conditions, when a water level provided to the second amount of washing with a closing weight (13), a closing force on the valve body (2), wherein the closing force is switchable or transferable through a switching member (14) from the control unit (12) on the valve body (2). Drain adapter (1) according to claim 1, characterized in that the valve seat (3) is arranged laterally offset from the float chamber (6). Drain adapter (1) according to one of the preceding claims, characterized in that the minimum distance (A) transversely to the median axis (M) or to the central axis (Z) between the wall of the chamber (9) the float chamber (6) and the valve body (2) are less than 2 millimeters, in particular less than 1 or 0.5 millimeters. Drain adapter (1) according to one of the preceding claims, characterized in that the float chamber (6) has a partition wall (10) upwards, which is located above the sealing element (4), wherein the partition wall (10) has an opening (25), through which the valve body (2) extends. Drain adapter (1) according to one of the preceding claims, characterized in that the cross section of the float chamber (6), viewed in the direction of the central axis (Z), is essentially constant over the entire height. Drain adapter (1) according to one of the preceding claims, characterized in that a reservoir (11) is present above the float chamber (6), which leads with an opening (24) to the float chamber , in such a way that as the water level in the cistern decreases, water circulates from the tank to the float chamber (6). Drain adapter (1) according to one of the preceding claims, characterized in that the control unit (12) is arranged essentially in the space area (R) resulting from the lateral lateral movement of the float chamber , or because the control unit (12) lies with respect to the float chamber (6) essentially on the opposite side of the maximum expansion (Amax) of the float chamber (6). Drain adapter (1) according to one of the preceding claims, characterized in that the switching member (14) automatically establishes a retaining connection with the valve body (2) as the control unit is raised (12). Drain adapter (1) according to claim 8, characterized in that the control unit (12) further comprises a bearing bar (27), wherein the switching member (14) is arranged at one end bottom (28) of the bearing bar (27) and / or where the closing weight (13) is housed fixed in the bearing bar (27) and adjustable relative to the bearing bar. Drain adapter (1) according to one of the preceding claims, characterized in that the height position of the closing weight (13) is adjustable over an adjustment range (15). Drain adapter (1) according to one of the preceding claims, characterized in that the first wash is a complete discharge wash and in that the second wash is a partial discharge wash, or in that the first wash is a discharge wash partial and because the second wash is a full flush wash. Drain adapter (1) according to one of the preceding claims, characterized in that several control steps (7) are arranged on different height positions, wherein the drain adapter (1) further comprises at least one closing element (16), with which one of the control passages (7) can be released and the other control passages (7) can be closed. Drain adapter (1) according to claim 10 and one of claims 11 or 12, characterized in that the adjustment zone (15) of the closing weight (13) extends in its height at least to below the higher control step (7).