EP2092128A1

EP2092128A1 - Two-quantity discharge valve

Info

Publication number: EP2092128A1
Application number: EP07801347A
Authority: EP
Inventors: Bernd Kettler; Martin Krabbe; Wolfgang Seidel
Original assignee: TECE GmbH
Current assignee: TECE GmbH
Priority date: 2006-11-03
Filing date: 2007-09-18
Publication date: 2009-08-26
Anticipated expiration: 2027-09-18
Also published as: EP2092128B1; WO2008052500A1; DE102006051823A1; TW200914690A; CN101611200A; CN101611200B

Abstract

The invention relates to a discharge valve (2) for performing two-quantity flushing, comprising a full-flushing quantity and a part-flushing quantity, in a cistern (96) connected to a WC. This valve should have a particularly simple and space-saving structure and additionally have a particularly long life. According to the invention, the part-flushing quantity is controlled solely through a part-quantity bypass opening (46) which can be closed via a closing element and which, in the installed position, is arranged at the water level of the part-flushing quantity, and an additional element is designed as a closing element (10, 56, 78) by means of which this part-quantity bypass opening (46) can be opened and closed to control the part-flushing quantity. In this arrangement, opening the part-quantity bypass opening (46) makes it possible to aerate the space between the float (18) and the separating wall (22) such that the valve body (6) is brought more quickly into the closing position, whereas, in the case of full flushing, the float is held in its raised position by negative pressure.

Description

Dual flush discharge valve

The invention relates to a drain valve having a housing which has a partition which separates a lower float chamber from an upper reservoir and is provided with a passage opening. In the passage opening, a valve body is displaceably guided, which is height adjustable via a Vollspülzugelement in the housing and has at its lower end a float arranged in the float chamber. Furthermore, these drain valves comprise a closable by a closing element bypass opening in the float chambers and may also have an additional element which is actuated by means of a Teilspülzugelements for performing a partial flush. Frequently, a coupling element for reversible coupling of the additional element with the valve body during the closing process is also provided in order to prematurely bring it into a closed position after the partial flush has been triggered.

Such drain valves are arranged in a cistern, and it can be flushed by lifting the valve body by operating the Vollspülzugelements a Vollspültaste on a fitting the Vollspülmenge of up to 9 liters. To carry out the flushing of the valve body is lifted over the Vollspülzugelement of a valve seat, and the float lowers with decreasing Spülwasserstand in the cistern until the valve body the drain or the valve seat again closes and thus assumes the closed position.

For the realization of a partial flush of about 3 liters known drain valves often see an additional weight formed as an additional element, which is guided longitudinally displaceable on the valve body and in the partial flushing via the coupling device with the valve body by actuation of the Teilspülzugelements can be coupled. The additional weight acts as an additional weight against the buoyancy of the float and thus pushes the valve body faster against the valve seat. The additional weight is preferably actuated via a Teilspültaste on the valve, so that the user can clearly distinguish between a full flush and a partial flush.

The tension elements may comprise, for example, separate pivot levers which are actuated by externally operable buttons. When the buttons are pressed, the pulling elements on the valve body or on the additional weight to either the valve body alone (full flush) or the additional weight coupled with the valve body (partial flushing) to raise. In the partial flushing of the valve body is taken over a coupling element with the additional weight. When you release the button "Teilspülmenge" loads the additional weight on the valve body and forces it in the manner described before the complete emptying of the cistern prematurely on the seat of the drain valve.

In addition, the invention relates to a purging device, with the optional triggering of a full and partial flushing a valve body of a drain valve is to raise.

Drain valves and flushing devices of this type are known and allow a considerable saving in flushing water.

A generic drain valve of the type described is known for example from EP 0 722 020.

In the known systems, the valve body is guided displaceably in the opening of the partition wall of the housing. The partition thus separates within the housing, the float chamber for receiving the float from a reservoir formed above the float chamber in the housing. The annular gap formed between the outer surface of the valve body and the opening in the partition wall allows a controlled flow of the rinse water contained in the reservoir after the water level has been lowered below the reservoir. The annular gap seals the space between the valve body and the opening conditionally and prevents early lowering of the float within the float chambers. Only when the rinse water has completely drained through the annular gap from the reservoir, air enters the float chamber and causes an immediate closing of the valve. This is due to the fact that from the reservoir through the annular gap in the float chambers inflowing rinse water prevents air entry into the float chamber and thus by further lowering the flushing a negative pressure in the float chambers is maintained, even if the Spülwasserspiegel outside the housing lower than the height the partition sinks. Only when the rinse water has drained from the reservoir completely through the annular gap in the float chamber, this negative pressure is released, and thus the valve closes instantaneously.

In the open position, air can also flow through a trained in the outer surface of the float chambers of the housing bypass opening in the float chamber as soon as the flushing water level has been lowered to the level of the bypass opening, and the closing operation (lowering the float) is initiated. By appropriate arrangement of the closable bypass opening thus premature closing can be realized even without complete emptying of the reservoir and thus the Vollspülmenge be regulated via the bypass opening. This bypass opening for controlling the Vollspülmenge is usually at a level of 6 liters flushing.

Known drain valves for the realization of a two-stage Quantity flushing are structurally relatively complicated and require a certain amount of space, eg for the additional weight. The variety of moving parts is also prone to error, especially after many years of use, z. By abrasion or scabbing.

Based on this prior art, the present invention seeks to at least partially avoid these disadvantages and to provide a drain valve for the realization of a two-volume flush, which has a particularly simple and space-saving design and is also very durable.

The object of the invention is achieved in that the bypass opening is arranged as Teilmengenbypassöffnung in installation position on a required for the partial flush water level, and that the Teilmengenbypassöffnung for the partial flush is openable and closable for the full flush.

With the construction according to the invention, it is now possible for the first time to control the partial flushing quantity solely by opening and closing the partial flow bypass opening. An additional weight is therefore not needed, which simplifies the structure and at the same time significantly reduces the required space. The drain valve according to the invention is therefore particularly suitable for use in cramped and small cisterns. Furthermore, the drain valve according to the invention provides a very good quantity accuracy, and shortages are almost completely excluded.

The drain valve preferably has an additional element, which can be actuated by means of a partial flushing pull element for carrying out a partial flushing, and the additional element comprises a closing element for closing the partial flow bypass opening. In this case, the closing element can be locked on actuation of the Teilspülzugelements via a reversible coupling means with a corresponding counter-element, preferably the Valve body to initiate the partial flush by opening the partial flow bypass opening. By contrast, in the case of full flushing, only the valve body is raised without the closing element, so that the partial quantity bypass opening remains closed.

The closing element can be designed differently. In a first embodiment, the closing element is designed as a pivotably mounted on the housing lever, which rests in the closed position with a correspondingly formed sealing surface on the Teilmengenbypassöffnung and this closes. Upon actuation of the Teilspülzugelements this lever is raised and the Teilmengenbypassöffnung exposed. Thus, the valve body closes when the rinse water level drops to the level of the partial flow bypass opening. An outside of the valve body radially projecting pin acts as a driver and presses the lowering of the valve body, the lever from the open position back to the closed position.

The lever can be locked in the end positions attached to the housing. This locking is preferably carried out by means of a projection which has to overcome a biasing force of a spring element to move from the closed position to the open position and vice versa. The preferably designed as a leaf spring spring means thus fix the lever cooperating with the projection in each case in the closed position or the open position.

Another embodiment provides for the formation of the closing element as a rotary element, which has a floater controllable by the water level and a driver which can be actuated by the partial flushing pull element. The rotation of the rotary member caused by lifting of the partial pulling member via the driver exposes the partial quantity bypass opening in the housing. After the rinsing process and the lowering of the rinse water level below the fill level of the partial flow bypass opening, rinse water flows into the cistern. The rising rinse water raises the float of the rotary element, whereby the Turning element is rotated back into the closed position. The float may, for example, be formed as a radially projecting and downwardly open half-shell, below which air traps in the open position, which is trapped by the rising rinse water. The rising Spülwasserstand carries this trapped air bubble upwards and thus causes the rotation of the rotary member in the closed position. The driver and the half-shell preferably extend radially from the fulcrum of the rotary element, particularly preferably approximately radially opposite one another.

In a further embodiment, the closing element is supported in a known manner on the valve body. It may, for example, have a slider attached to the valve body, which is fixed relative to the valve body movable. This slide thus slides vertically up and down on the valve body. A valve plate formed on the slider closes the partial quantity bypass opening in the closed position.

The additional element designed as a closing element can also be connectable to the valve body via reversible coupling means, so that the partial flow bypass opening is released when the auxiliary element is raised and the valve body immediately closes when lowering the filling water level to the level of the bypass opening through the air flowing into the bypass opening. The control of the partial flush is thus also only on the amount of partial flow bypass opening in the cistern.

The coupling means preferably comprise a pawl, which is pivotally attached to either the additional element or the valve body and locked with a latching surface on the respective counter-element in the partial flush to connect the additional element with the valve body.

Preferably, the pawl comprises against a stop-pressing spring means, which this with a filled cistern (filling water level above the latch) in the open (unlocked) Press the rest position. These spring means may for example comprise a leaf spring which extends radially from a pivot point for fastening the pawl. Alternatively, it is also conceivable that the spring means are designed as a spiral spring, which is arranged around the pivot point preferably designed as a pin. This coil spring bears against the one element (additional element or valve body) at a first end and against the corresponding other element at a second end. A container formed on the pawl and open at the top functions as a weight filled with rinsing water which presses the pawl outside the rinsing water into the catching position for coupling the elements. The pawl may also comprise other known from the prior art means for realizing the desired function, for. B. a float instead of Federmit- tel.

For a good closure of the partial quantity bypass opening in the closed position, the closing element may have a valve plate, which sits in the closed position in a sealing manner on the partial quantity bypass opening. Preferably, this valve plate is attached via compensation means to the additional element. Particularly advantageous is the formation of the compensating means as a ball joint with a formed on a first element ball, which engages around a relatively formed on the second element socket.

The Teilmengenbypassöffnung may be formed directly in the preferably horizontal partition wall at the upper end of the float chamber or in a raised extension portion of the float chamber. Preferably, the partial flow bypass opening is arranged at the upper end of the extension section. Previous drainage valves prevent the combination of a Teilspülmenge of 3 liters with a, possibly adjustable Vollspülmenge of 4.5 liters by the geometric structure with given dimensions of the cistern. The additional weight of existing drain valves must be lowered when lowering Realization of its weight drop to a certain depth in the cistern, which then overlaps with the bypass opening for the 4.5 liter Vollspülenge. The extension section according to the invention represents a portion of the float chamber, which is raised only partially, preferably on one side in a chimney fashion, which is higher than the upper end of the housing and contains at least the partial quantity bypass opening.

In addition, the extension section may have at least one further closable full-volume bypass opening for controlling the full flushing quantity.

It particularly preferably has a plurality of full-volume bypass openings at different fill levels. Thus, the full flush volume is easily adjustable to the ceramic used and the country-specific requirements, eg. B. to Vollspülmengen of 4.5; 6; 7.5 and 9 liters.

These full-volume bypass ports can be either independently or independently lockable. The dependent control can, for. B. by a height-adjustable slide, which is guided longitudinally displaceable in the extension section.

To simplify the installation of the drain valve in confined spaces with cisterns with high height and / or shallow depth of the valve body can be formed separable and / or bendable. The connection of the two parts of the valve body can e.g. via an elastic connecting element or by means of a rotary joint, which z. B. on the one part of the valve body formed pins and these encompassing eyes on the other part of the valve body in installation position. Other suitable embodiments for the pivotable connection are within the scope of the invention.

Preferably, the drain valve is designed as a plastic injection molded part. Styrenes are usually used as the material used, more preferably ABS and SB.

A particular advantage of the invention consists in the fact that for the first time a "hydro-pneumatic closing damping" of the valve disk of the main valve can be realized The premature closing of the partial flow bypass opening creates a suppression in the upper section of the Sehimmerkämmer, which causes a gentle closing of the valve plate of the main valve.This hydroprieumatische closing damping represents a particular advantage of the valve according to the invention over the state In the art, because the impulse when closing the partial purge is the loudest and therefore the only relevant impulse in the context of noise suppression, this impulse is amplified in known valves by the loading of weights.

Preferably, the means for realizing the hypnosedeumic closing damping comprise a slide with a receptacle extending vertically in the mounting position, into which a rotary pawl can be inserted in a relatively movable manner. Between the receptacle and the rotary pawl, a linear gear is formed, which causes a rotation of the rotary pawl for loading a nose on the valve body when lowering the rotary pawl in relation to the receptacle. In the preferred embodiment, the linear gear comprises a pin formed on the one element, which is guided in a link guide formed on the other element.

Further details, advantages and features of the invention can be taken from the following part of the description in which a preferred embodiment of the drain valve according to the invention is explained in more detail with reference to drawings. Show it: 1 is a perspective view of a first embodiment of the drain valve in the closed state.

FIG. 2 shows a front view - partly in section - of the drain valve according to FIG. 1; FIG.

Fig. 3 is an enlarged view of the spring latch and the slider of Figure 1;

Fig. 4 is an enlarged view of the spring latch and the slider of Figure 2;

Fig. 5 is a perspective view of the first embodiment of the drain valve in the full flush;

Fig. 6 is a front view - partially in section - of the drain valve of Figure 5;

Fig. 7 is an enlarged view of the spring latch and the slider of Figure 5;

Fig. 8 is an enlarged view of the spring latch and the slider of Figure 6;

9 is a perspective view of the first embodiment of the drain valve in the partial flushing.

10 is a front view - partially in section - of the drain valve of Figure 9;

11 is an enlarged view of the spring latch and the slider of Figure 9;

Fig. 12 is an enlarged view of the spring latch and the slider of Figure 10;

Fig. 13 is a schematic front view of a second embodiment of the drain valve according to the invention in the closed position; 14 shows an enlarged front view of the bearing element for connecting the lever to the housing according to FIG. 13 in the closed position of the lever;

FIG. 15 shows a schematic front view of the second embodiment in the opening position during the partial flushing; FIG.

16 is an enlarged front view of the bearing member for connecting the lever to the housing of Figure 15 in the opening position of the lever.

17 is a schematic front view of the second embodiment when closing the valve body;

18 is an enlarged front view of the bearing member for connecting the lever to the housing of Figure 15 in the opening position of the lever.

19 shows a schematic illustration of a third embodiment of the drain valve with a closing element designed as a rotary element in the closed position;

FIG. 20 shows the embodiment according to FIG. 19 with the rotary element in the open position; FIG.

21-24 are schematic representations of a fourth embodiment of the drain valve with a closing element formed as a rotary element when opening and closing the rotary member.

FIG. 25 shows a side sectional view of a flushing device with a drain valve according to the invention, which is inserted into a toilet cistern; FIG.

FIG. 26 shows an enlarged perspective view of a drainage valve according to the invention with a valve plate attached to the slide by means of a ball joint; FIG. FIG. 27 shows a schematic representation of a fifth embodiment of the drain valve with a closing element designed as a rotary valve in the closed position; FIG. and

Fig. 28, the embodiment of FIG. 27 with the rotary valve in the open position.

Identical or equivalent parts are provided with the same reference numerals.

The figures show a usable in a cistern not shown drain valve 2. For actuating the drain valve, an actuating device, not shown, is arranged in the upper region of the cistern. This has, for example, two separate tension elements, which are preferably mounted independently of each other pivotally mounted on a web of the cistern. These tension elements each have a volume and a partial quantity button at one end, which are accessible from the outside and can be actuated by hand to trigger a rinse.

The Vollspülzugelement engages with the opposite end of a full-volume key in a valve body eye 4 of a valve body β, which is designed here as a head pipe. When pressing the full-volume key, the valve body 6 is raised.

A trained as a slide 10 additional element is height-adjustable attached to the valve body 6.

To lift the slider 10 and the valve body 6, the tension elements can be actuated by means of buttons, as is usual with cisterns. Also conceivable are other actuators with which either the slider 10 or the valve body 6 can be raised.

When lifting the valve body 6, a valve plate 12 arranged at the lower end of the valve body 6 is raised by a valve seat of the drain valve 2. In the cistern containing rinse water can then flow through the window of the valve seat through the drain pipe in a toilet bowl, not shown. The raised valve body 6 is kept floating by a float 18 in a conventional manner until the cistern is substantially completely emptied. By pressing the full volume key, a full flush is thus triggered. The slider 10 is uninvolved in this case.

To trigger a partial flush, the partial amount key is actuated and thus the slider 10 is raised to the valve body 6.

The housing 14 comprises on the inside a horizontally extending partition wall 22, which divides the housing 14 into a lower float chamber 24 for receiving the shimmer 18 and an upper reservoir 26. The reservoir 26 is open to the cistern upwards. The partition wall 22 has a middle one _. Through opening in which the valve body 6 is displaceably guided.

The coupling device for the reversible coupling of the slider 10 to the valve body 6 is formed in the embodiment shown in Figures 1 to 12 as a spring latch, which is designated in its entirety by the reference numeral 28. The spring latch 28 is clipped at a pivot point on a radially outside of the valve body 6 protruding pin 30. The spring latch 28 has a radially extending from this pivot arm 32, at the free end of an upwardly open pot body 34 is integrally formed. This pot body 34 absorbs rinse water when the rinse water level drops and thus forms a weight body. Integrally formed on the spring latch 28, extending radially from the pivot point and approximately transversely to the imaginary longitudinal axis of the arm 32, a latching hook 36 is formed with an inwardly offset undercut. The geometry of this undercut corresponds negatively to the geometry of a correspondingly laterally formed on the slider 10 locking lug 38. Slightly offset down, extending parallel to the axial direction of the pin 30 is at the rear the spring latch 28, a spring arm 40 is formed, which engages under a radially outwardly extending guide bevel 42 on the valve body 6 in the installed position. This spring arm 40 generates a force on the spring latch 28 which causes the spring latch to be held in the non-latching position without the countervailing weight of the water-filled pot body 34 as shown in Figs. 1-4.

On the underside of the slide 10, a substantially cylindrical valve plate 44 is formed, which extends parallel to the longitudinal axis of the valve body 6 extends downward. This valve plate 44 is seated in FIGS. 1 to 8 on a partial flow bypass opening 46 shown in FIGS. 9 to 11 in the upper horizontal wall 48 of an extension section 50, which is connected on the inside to the float chambers and extends chimney-like on one side next to the reservoir 26 to a height extends, which corresponds to the desired Teilspülmenge. Preferably, this Teilspülmenge is arranged in the installed position in the cistern of a height, ^• corresponds to a Teilspülmenge of 3 liters.

Figures 5 to 8 show the drain valve 2 at the full flush. The Vollspülzugele- element engaging in the valve body eye 4 has lifted the valve body 6 from the closed position, so that the valve plate 12, the mouth of the drain nozzle 16 releases. Approximately 9 liters of rinse water now flow through the lateral openings of the valve seat in the drain pipe 16. Since the spring latch 28 is when lifting the valve body 6 in the rinse water, the weight acts. of the pot body 34 filled with water does not act against the spring force generated by the spring arm 40, which rests in the closed position against the guide bevel 42 of the valve body 6. For this reason, the latching hook 36 of the spring latch 28 is not latched with the locking lug 38 of the slider 10. Consequently, the slider 10 is not raised in the full flush when lifting the valve body 6 with. By contrast, FIGS. 9 to 12 show the drain valve 2 during the partial flushing. In this case, an arm 52 is pulled upwards by the partial flushing pull element, which extends at the top end of a parallel offset to the longitudinal axis of the valve body 6. This arm 52 is integrally formed on the upper side of the slide 10. When lifting the upper edge of the slider 10 abuts against a ring 54, which is integrally formed radially outwardly on the cylindrical valve body 6. This ring 54 forms a stop which entrains the valve body 6 when lifting the slider 10. Since in the raised position outside the rinsing water, the spring arm 40 no longer abuts against the guide slope 42 and thus exerts no force, the weight force of now located outside the rinse water and filled with rinse water Topfkör- pers 34 and presses the latching hook 36 of the spring latch 28th in the closed position for locking with the corresponding locking lug 38 on the slider 10. The slider 10 is thus coupled to the valve body 6 and thus decreases even when releasing the Teilspültaste controlled against the buoyancy of the shimmer 20 with the valve body 6 from.

By lifting the slide, the Teilmengenbypassöff- nung 46 is released. When the drain valve is open, the flushing water flows through the drainage pipe 16 in the manner described above until it has dropped to the level of the partial quantity bypass opening 46. Then air enters through the Teilmengenbypassöffnung 46 in the float chambers 24, the negative pressure in the Schwiπtmerkammer 24 is compensated and the valve body 6 decreases with its valve plate 12 in the closed position shown in Figures 1 to 4 on the sealing seat.

Laterally at a corner of the extension section 50, a closure slide 76 is inserted in a height-adjustable manner in a guide formed on the extension section 50. This lock slide 76, which is displaceably mounted in the guide, selectively covers full-quantity bypass openings at different fill levels in the extension section 50. Thus, can this slide 40 can be used to selectively release or close the full volume bypass ports. This can easily be set different Vollspülmengen, from which the drain valve 4 closes.

Figures 13 to 17 show an alternative embodiment of the drain valve 2 according to the invention, which uses a lever 56 for reversibly closing the Teilmengenbypass- opening 46 which is rotatably latching attached to the top of the housing 14. The lever 56 has a fastening end with a pivot pin 58 running transversely to the longitudinal extension direction, which has a radially projecting projection 60 on its outer circumferential surface. This pivot pin 58 is rotatably mounted in a bearing element 62 on the upper side of the housing 14. The bearing element 62 has a substantially round receiving opening 64 for receiving the pivot 58. On the underside, a trapezoidal downwardly widening opening 66 is formed with a transversely extending in this opening from one side wall to the other and upwardly bent leaf spring 68. This leaf spring 68 presses in the locking positions against the projection 60 and thus positions the lever 56 in the end positions. When the lever 56 is moved from the closed position (FIG. 13) to close the by-pass opening 42 in the opening position (FIGS. 15 and 17), this projection 60 presses against the leaf spring 68 and presses it

Leaf spring 68 down. Thus, the lever 56 is fixed after opening in the opening position shown in Figure 15, and the Teilmengenbeipassöffnung is thus kept open until the valve body 6 presses with the radially outwardly projecting pin 70 against the top of the lever 70 and this again in the in FIG 13 presses closed position shown. Also common to this solution is that when lifting the partial flushing pull element, the lever 56 is raised by the catch 72 and the partial quantity bypass opening 46 is released. In the case of full flushing, on the other hand, only the tilkörper 6 raised without operating the lever 56; the Teilmengenbeipassöffnung 46 thus remains closed by the lever 56 and the underside integrally formed thereon plate 74. 5 _.

FIGS. 19 and 20 show a third alternative embodiment in which the closing element is designed as a rotary element 78. This rotary element 78 is in turn at the upper end of the housing 14 rotatably mounted on an internally formed on the reservoir 260 pin 80. The rotary element 78 comprises a semi-circular body 79, which is formed on one side about the central pivot point and from whose outer lateral surface a pin-shaped driver 82 extends radially. The semi-circular body 79 merges into a half-shell 84 which is open on one side. In the closed position shown in FIG. 19, the rotary member 78 closes an opening 86 visible in FIG. 20 in the side wall of the housing 14, which communicates with the float chamber 24. When raising the arm 52 to carry out the partial flush this proposes in the manner described on the Kranz0 54 of the valve body 6 and thus takes the valve body 6 during lifting with. At the same time causes the lifting of the driver 82 a rotation of the rotary member 78 in the clockwise direction in the opening position shown in Figure 20, in which the rotary member 78, the opening 86 in the side wall of the housing 5 ses 14 releases. Rinse water can flow through this opening 86 and thereby abruptly the bore 46 free. As a result, the closing of the valve is initiated.

FIGS. 21 to 24 show a further alternative embodiment of the discharge valve with a closure element formed as a rotary element 78, in which this directly partial volume bypass opening 46 closes. The rotary element 78 is embodied as in the embodiment according to FIGS. 19 and 20. In the closed position shown in FIG. 21, the rotary element 78 closes the partial quantity bypass opening 46, which corresponds to the peak vertex of a semiautomatic circular body 79 formed recess 88 is formed at the upper end of the housing 14. When lifting the arm 53 for performing the partial flush causes the driver 72 in the manner described above on the radially projecting driver 82, the rotation of the rotary member 78 in the clockwise direction from the closed position to the opening position shown in Figure 22. In this, the partial quantity bypass opening 46 is exposed, and air can flow into the float chambers 24. After actuation and before refilling the cistern, the arm 52 falls back to the initial position shown in FIG. When filling the cistern, an air bubble forms in the downwardly open half shell 84 of the rotary member 87. This air bubble rotates the rotary member 78 counterclockwise to the closed position; the air escapes laterally from the half shell 84th

Figures 27 and d28 show schematic representations of a fifth embodiment of the drain valve with a locking element designed as a rotary latch. The vertically oriented rotary pawl 102 consists of a hollow cylinder 104 which is rotatably inserted in a hollow cylindrical receptacle of a slider 106. At the lower end, the hollow cylinder 104 has a valve plate 44 at a distance over an axially extending pin. The slider 106 is snapped on the outside of the valve body 6. A provided on the outer circumferential surface of the hollow cylinder 104 guide pin is slidably guided in a slightly arc with a substantially vertically extending slotted guide 110 of the recording. The arc of the slide guide 110 is formed so that the rotary pawl 102 when lowering relative to the slide 106 performs a counterclockwise rotation. A nose 112 is formed at the upper end on one side radially abragend on the lateral surface of the hollow cylinder 104.

In the case of the full flush shown in FIG. 27, the valve body 6 is raised from the closed position via the valve body eyelet. In this case, arm 52 remains together with the rotary pawl 102 in the lowered position, so that the valve plate 44 closes the Teilmengenbypassöffnung.

In the partial flushing shown in Fig. 28, however, the arm 52 is raised. As an additional weight is water in the hollow cylinder 104 of the rotary pawl 102. The weight of the rotary pawl 102 leads to the lowering of the same, as soon as it is lifted in the partial flushing over the waterline. When lowering the rotary pawl 102 rotates counterclockwise in the slider 106 and loads in the end position with the nose 112 on a circumferentially formed on the valve body 6 stop 108. As a result, the valve plate 44 does not fall back on the Teilmengenbypassöffnung even after releasing the Teilmengenbetätigungstaste and close them. Air may flow through the partial flow bypass opening 46, so that the subset is purged.

Already shortly before the closing of the valve disk 12 of the main valve, the valve plate 44 reaches the partial quantity bypass opening 46. The closing operation of the main valve is already almost completed at this time. By prematurely closing the partial flow bypass opening 46 before the main valve closes, a negative pressure is created in the upper section of the float chamber, which causes a gentle closing of the valve disk 12. This hydropneumatic closing damper causes a particularly quiet closing of the valve disk during the partial flushing.

Upon further lowering of the valve body 6, the slider 106 is pushed by stop 108 of the Ventilköpers 6 downward. In this case, the rotary pawl 102 is supported on the upper side of the housing, preferably the extension section 50, and is rotated by the sliding guide 110 in the unlocked position in a clockwise direction.

The trained as an arm pull lever does not necessarily have to be supported on the valve body. It is also conceivable that he himself is supported after falling on the housing 14 and is closed again only by the closing valve body.

All embodiments of the drain valve can be formed bendable for installation in narrow cisterns and confined spaces. For this purpose, the valve body 6 is separable and consists of a lower valve member 90 and an aufgeraste- th them on upper valve member 92. The upper valve member 92 forms an extension of the lower valve member 90 and can adapt to the height of the cistern by such a in another - ren length be replaced. The upper valve member 92 is rotatably and releasably latched with two molded notches on the lower valve member 90.

Furthermore, all described embodiments of the drain valve according to the invention can be mounted in a cistern via a rearwardly extending mounting tab 94. This mounting bracket 94 engages in the installed position a rotatably mounted on the cistern 96 holder 98. This holder 98 is rotated to fix the drain valve 2 in the cistern 96 in the mounting position shown in Figure 25 so that the mounting bracket 94 engages under the holder 98 and the drain valve thus fixed in place in the cistern 96 is fixed.

In the embodiment shown in Fig. 26, the valve plate 44 is pivotally clipped onto a ball 100 which is integrally formed at the lower end of the slider 10. Four resilient webs, which are integrally formed on the upper side of the valve plate 44, embrace the ball 100 in the installed position. The thus formed ball joint ensures that the valve plate 44 is always seated flat on the Teilmengenbypassöffnung 46 in the closed position to achieve a good closing action.

The subject matter of the present invention results not only from the subject matter of the individual claims, but also from the combination of the individual claims with one another. All in the documents - including the summary - disclosed details and features, in particular the spatial design shown in the drawings are claimed as essential to the invention, as far as they are new individually or in combination over the prior art.

It is immediately obvious to the person skilled in the art that the tension elements do not have to perform a pulling movement, but that an actuation is crucial regardless of the specific kinematics.

Dual flush discharge valve

LIST OF REFERENCE NUMBERS

22 AAbbllaauuffvveennttiill

4 valve body eyelet

6 valve body

8 additional element socket

10 slides

12 valve plates

14 housing

16 drain connection

18 swimmers

22 partition wall

24 float craters

26 reservoir

28 spring latch

30 cones

32 arm

34 pot body

36 snap hooks

38 latch

40 spring arm

42 guide slope

44 valve plate

46 Partial bypass opening

48 horizontal wall 50 extension section

52 arm

54 wreath

56 levers

58 pivot

60 advantage

62 bearing element

64 receiving opening

66 opening

68 leaf spring

70 pen

72 drivers

74 plates

76 shutter slide

78 rotary element

79 semicircular body

80 cones

82 drivers

84 half shell

86 opening

88 trough

90 lower valve part

92 upper valve part

94 mounting bracket

96 cistern

98 holders

100 ball

102 rotary latch

104 hollow cylinders

106 pushers

108 stop

110 link guide

112 nose

Claims

Dual flush discharge valve patent claims

Drain valve (2) having a housing (14) which has a partition wall (22) which separates a lower float chamber (24) from an upper reservoir (26) and is provided with a passage opening, a valve body (6) displaceably guided in the passage opening ), which is height adjustable via a Vollspülzugelement (14), one at the lower end of the valve body (6) in the float chamber (24) arranged float (18) and a closable bypass opening in the float chamber (24), characterized in that the bypass opening as Teilmengenby- passport opening (46) is arranged in the installed position to a required for the partial flush water level, and that the Teilmengenbypassöffnung (46) for the partial flushing openable and closable for the full flush. Drain valve (2) according to claim 1, characterized in that it has an additional element which can be actuated by means of a Teilspülzugelements for performing a partial flush, and that the additional element comprises a closing element for closing the Teilmengenbypassöffnung (46).

2. Drain valve according to claim 2, characterized in that the additional element comprises a on the housing (14) rotatably mounted lever (56).

3. Drain valve according to claim 3, characterized in that the lever (56) is lockably secured to the housing (14).

4. drain valve according to claim 2 to 4 with a coupling element for coupling the valve body (6) with the additional element, characterized in that the coupling element comprises a pin (70) on the valve body (6).

5. Drain valve according to one of claims 2 to 5, characterized in that the additional element is supported on the valve body (6).

6. drain valve according to claim 6, characterized in that the additional element comprises a slider which is relatively movably mounted on the valve body (6).

7. Drain valve according to one of the preceding claims, characterized in that the closing element comprises a valve plate (44).

8. drain valve according to claim 8, characterized in that the valve plate (44) is connected via compensating means with the additional element.

9. drain valve according to claim 9, characterized in that the compensating means comprise a ball joint.

10. drain valve according to claim 2, characterized in that the additional element has a rotatably mounted on the housing (14) fixed rotary member (78) which has a controllable by the water level float and an actuatable by the Teilspülzugelement driver (82).

11. Drain valve according to one of the preceding claims, characterized in that it is designed to realize a hypropneumatisehen closing damping of the drain valve.

12. Drainage valve according to claim 12, characterized in that it has a slide (106) with a receptacle which extends vertically in the installed position, in that a rotary pawl (102) can be inserted in a relatively movable manner into the receptacle, that between the receptacle and the rotary receptacle pawl (102) is formed a linear gear, which causes in a lowering of the rotary pawl (102) relative to the receptacle rotation of the rotary pawl (102), and in that the rotary pawl means for loading the rotary pawl (102) on the valve body (6) - sen.

13. Drain valve according to claim 13, characterized in that the rotary pawl is geometrically formed so that it closes the Teilmengenbypassöffnung (46) shortly before closing the drain valve.

14. Drain valve according to one of the preceding claims, characterized in that the float chamber (24) has a raised extension portion (50) in which the Teilmengenbypassöffnung (46) is formed.

15. Drain valve according to claim 15, characterized in that the extension section (50) has at least one further closable full-volume bypass opening for controlling the Vollspülmenge.

16. Drain valve according to claim 16, characterized in that it has a plurality of closable Vollmengenbypassöffnun- conditions.

17. Drain valve according to claim 17, characterized in that the Vollmengenbypassöffnungen are closable together via closure means.

18. Drain valve according to claim 18, characterized in that the closure means comprise a closure slide (76).

19. Drain valve according to one of the preceding claims, characterized in that the valve body (6) is separable and / or bendable.

20. Flushing device in a toilet cistern with an actuating device for selectively triggering a VoIl- and partial flushing of a valve body (6) of a drain valve (2), characterized in that it has the drain valve (2) according to one of claims 1 to 16 up ,