WO2015063378A1

WO2015063378A1 - Dual flow flush

Info

Publication number: WO2015063378A1
Application number: PCT/FR2014/000225
Authority: WO
Inventors: Rémi Biju Duval
Original assignee: Les Robinets Presto
Priority date: 2013-10-31
Filing date: 2014-10-17
Publication date: 2015-05-07
Also published as: FR3012482B1; CN105683455B; EP3063339B1; CN105683455A; ES2883935T3; FR3012482A1; EP3063339A1

Abstract

Flushing device with at least two flows, comprising: - means forming a conduit for a flow of water between a water inlet opening (25) and a water delivery outlet opening (26); - means forming a valve (20) sealing the delivery outlet opening; - control means for commanding the opening and closing of the valve (20), the control means being arranged in such a manner as to be able to open the valve (20) from the closed position of same for at least two different time intervals, one long and one short, corresponding to the delivery of a large volume of water and a small volume of water at the delivery outlet.

Description

Double flow flush

The present invention relates to a dual flow flush comprising at least two control buttons for respectively controlling the delivery of a first large volume or a second smaller volume. Existing systems are not very reliable in operation, and in particular it often happens that the small volume issued "drifts" over time and becomes too weak, so that this functionality becomes inoperative.

Double flow flushes of the prior art are already known, in particular in US 2011/0155934. However, these flush toilets have hydraulic actuation and are expensive and complicated to manufacture and are unreliable.

We would like to have available, a flush dual flow of the kind mentioned above that is simpler to manufacture and more reliable in operation over time.

According to the invention, the flush device with at least two flows is as defined in claim 1, improvements being defined in the subclaims.

By planning to operate and control the dual flush via two timer valves, an initiator valve and a main valve, we obtain a particularly simple and reliable system.

Preferably, the actuating means comprise an opening or closing actuating valve, during a time interval which can take at least two values, a drain duct of the timing chamber of the control delay valve.

According to a preferred embodiment, the actuating means comprise a rod, a pallet is interposed between the two control knobs and the rod and is rotatably mounted relative to a pivot point, the rotation of the pallet causing the displacement of the rod according to an actuating stroke, and adjusting means adjust the rotational stroke of the pallet under the effect of the small volume knob, so as to adjust the actuating stroke of the stem when the small button is actuated. volume, so to adjust the second delivered volume.

Thus, according to the invention, it can be ensured, by modifying the setting, that the small volume delivered is kept at a suitable value, so that the operation in double flow remains effective during the life of the hunt.

Preferably, the adjustment means comprise a shim slidably mounted relative to the pallet and comprising a low end section, an intermediate inclined section and a high end section, the shim thus acting on the position of a stud coming from of the small volume knob, the pad being able, depending on the respective sliding of the shim relative to the pallet, to support either on the low, preferably horizontal, section of the shim, either on the inclined section, or on a slope, of the shim or on the upper end section, so that the block is more or less close to the small button volume, which regulates the race of the rod of the initiator.

By way of example, a preferred embodiment of the invention will now be described with reference to the drawings, in which: FIG. 1 is a front view of the control part of a dual flush device according to the invention the pallet being in a setting position in which the small volume is in the average position; Figure 2 is a sectional view of the device of Figure 1 in maximum setting; Figure 3 is a front view of the device.

FIGS. 1 and 2 in which the adjustment pallet is in the position of maximum small volume; Figure 4 is a sectional view of the device of Figure 3 in position of small maximum volume; Figure 5 is a front view in which the pallet is in the minimum setting position; Figure 6 is a sectional view in which the pallet is in the middle position; FIG. 7 is a front view of the device represented in FIGS. 1 to 6 in which is represented the actuation of the pallet by the large volume button; Figure 8 is a view of the device of Figures 1 to 7 showing 1 ¹ actuation of the pallet by the small volume knob in minimum small volume setting position; Figure 9 is a view identical to that of Figure 8 for a volume adjustment in the middle position; Figure 10 is a view identical to Figures 8 and 9 for a small maximum volume position setting; and Figure 11 shows in a sectional view similar to those of Figures 2, 4 and 6 to 10 the device of the preceding figures with the initiator valve or actuator shown in more detail; Figure 12 shows a sectional view of the water inlet duct and control timing valve; 13 shows a sectional view of the system as a whole, the arrow indicating the direction of passage of the water during the emptying of the delay chamber of the actuator valve of. Figure 11; and Figure 14 is a sectional view of the system as a whole, the arrow indicating the direction of passage of water during the emptying of the valve timing chamber. control delay.

In the figures, there is shown a flushing device according to the invention. Preferably, the hunt is embedded in a facade. A large volume knob 4 protrudes out of the facade and allows the user to select sending the large six-liter volume in the hunt. A button 5 of small volume also protrudes out of the facade and allows the user to select the sending of a small volume in the hunt, corresponding to a fraction of the large volume, for example three liters. Springs 6 and 7 are mounted together with the buttons to return the latter to the initial position after pushing by the user.

The volumes (small or large) of flush water are delivered by a flushing opening connected to a water supply duct. The flush opening is closed by a valve 20. The shutter more or less large opening by the valve is controlled by a valve 21 timing, said control.

The control timing valve 21 comprises a control delay chamber 22 whose volume varies as a function of the displacement of an upper plate 23 which delimits the timing chamber on the top. A spring is arranged to push up the upper plate 23.

The plate 23 is connected to the valve 20 to cooperate with the latter, so that in the upper position of the plate (maintained by the equal pressure of water on the part and else and by the action of the spring) the valve closes the flush opening, while in the lowered position of the plate, the flap does not close the flush opening and let a flow of water flow .

The timing valve 21 is disposed inside the conduit 24 for supplying water between a water inlet opening 25 and the opening 26 flush closed by the valve.

The plate 23 defines the chamber 22 of delay, but however not completely sealed. The duct water can pass into the chamber 22 at the peripheral edge of the plate 23.

In the normal position (that is to say during which the flush does not deliver water), the opening 26 is closed by the valve 20 and the delay chamber is filled with water, the duct being under the water pressure of the supply network and the water pressure being the same above and below the plate, which is therefore in the high position.

The movement of the plate 23 is controlled by totally or partially emptying the timing chamber 22 of the valve 21 via a conduit 28 for emptying.

The delay chamber 22 is drained via the conduit 28 by a given amount, ie a large quantity in the case where it is desired that the valve 20 remains a long time out of its seat, for a large hunting volume. delivered, and a smaller amount in the case where it is desired that the valve 20 remains out of its seat for a shorter duration for a smaller delivered flush volume. This given amount is determined by the time during which the conduit is open. If a large amount of water is drained, it is ensured that the time taken by the plate 23 to rise under the effect of the water which infiltrates into the delay chamber at the level of the periphery of the plate is large and therefore that the time during which the valve 20 is open is large, and therefore the flush delivers a large flush volume. If a smaller quantity is emptied, it is ensured that the time taken by the plate 23 to rise under the effect of the water which infiltrates into the delay chamber at the periphery of the plate is less, and so that the time during which the valve 20 is open is less, and therefore that the hunt delivers a smaller flush volume.

This total or partial emptying of the chamber 22 of delay causes the descent of the plate 23 (since the pressure of the water above becomes greater than the pressure inside the chamber and the spring is set to not s opposing the descent of the plate in such a case) which then drives the valve 20 out of its seat and opens the opening 26 for hunting, allowing the delivery of a volume of water.

The delivery of the water is the time that the delay chamber 22 fills up again, gradually raising the plate 23, which gradually reduces the valve 20 in its seat, to the position in which the water pressures on both sides of the plate 23 equalize and that the valve closes the opening 26. The time that the chamber 22 of delay to fill after emptying defines the water flow of the hunt. In the case where the plate has descended a great height following the emptying (adjustable by the volume of water drained), the filling time is long and the flush volume delivered is large and in the case where the The plate has come down from a lower height (adjustable according to the volume of water drained), the filling time is shorter and the flush volume delivered is less, correspondingly.

To control or actuate the emptying of the delay chamber 22, and therefore the movement of the plate and the valve, the flushing control device further comprises a delay initiator valve 27 (which thus also comprises a delay chamber of actuation). The valve 27 is arranged to open a conduit 28 for emptying the control delay chamber 22 and to close it.

The initiator valve 27, or actuator, comprises a rod 8 whose displacement causes the opening of the conduit 29 for emptying the timing chamber of the initiator valve. This emptying of the delay chamber of the initiator valve causes, according to a principle identical to that described for the cooperation between the plate 23 and the valve 20, the opening of a valve of the conduit 28 the time that the delay chamber of the faucet 27 fills up again. The drained volume of the delay chamber is proportional to the stroke of the stem 8, itself dependent on the button pressed between the small volume knob and the large volume knob. Between the small volume and large volume knobs and the actuator rod, there is mounted a pallet 9. The pallet is rotatably mounted relative to an end pivot point 10. The pallet comprises a stud 11 intended to come into contact with the button rod 4 of large volume and a stud 12 intended to come into contact with the small button knob 5 rod. The stud 11 is closer to the pivot point than the stud 12.

A conduit 29 in the initiator valve 27 communicates for the fluids the timing chamber of the valve 27 with the outside as well as with the conduit 28 for discharging the water taken from the chamber 22 at the opening 26, simultaneously with the delivery of the large or small hunting volume through the opening 26.

Therefore, in fine, the flush volume delivered by the exit aperture is a function of the stroke of the actuating rod 8.

When the user presses the large volume knob, as shown in FIG. 7, the button rod 4 presses on the stud 11, causing the pallet to rotate relative to its pivot point 10 and the pallet comes to press the rod 8 of the initiator valve. The corresponding stroke of the rod 8 causes the emptying of the delay chamber of the initiator valve, causing the opening of the conduit 28, then the emptying of the chamber 22 of delay and finally the delivery of the large flush volume the time that the chamber 22 fills again, after the closing of the duct 28 after refilling the timing chamber of the initiator valve. In the pallet, there is mounted a shim 13 of sliding adjustment relative to the pallet. It can thus move in translation in the direction to the right or to the left to the figures, that is to say, closer to or away from the pivot point 10 of the pallet. This adjustment shim 13 comprises a slope stop which acts on the position of the stud 12, depending on its position. In the position shown in Figure 3, the stud 12 rests on the lower horizontal portion of the shim. In the middle position, shown in Figure 5, the stud 12 comes into contact with the inclined portion or slope of the wedge. Finally, in the maximum position, represented in FIG. 1, the stud 12 comes into contact with the wedge in the upper adjustment part. Thus, depending on the respective position of the shim and pad 12, the latter is more or less close to the small volume knob 5. The closer it is (maximum position), the more the pushing action of the button 5 on the pallet will cause a large stroke in rotation of the pallet relative to its pivot point and the greater the stroke of the rod of the actuator under the effect of the thrust of the pallet. On the contrary, the further the stud will be away from the button 5, the less the stroke achieved by the rotation of the pallet during the action by the button 5 and less will be the translation of the actuator rod of the initiator. Thus, the stroke of the rod of the actuator is proportional to the drained volume of the delay chamber of the initiator valve 17 and therefore to the time during which the conduit 18 empties the timing chamber 22 and therefore to the time during which the valve 20 is out of his seat and leave the opening 26 open. The time during which the opening 26 is open likewise determines the volume of hunting issued.

Thus, according to the system shown, it is possible to adjust the volume of the small hunt with precision, simply by sliding the wedge relative to the pallet. In particular, it is possible to provide, as shown in the figures in side views, indications and also notches to easily adjust the translational sliding of the shim.

Claims

A flush device with at least two streams, comprising:

conduit means for passing a stream of water between a water inlet opening (25) and a water delivery outlet opening (26); valve means (20) closing off the delivery outlet opening;

control means for controlling the opening and closing of the valve, the control means being arranged to be able, from its closed position, to open the valve at least for two different time intervals, a large and a small, corresponding to the delivery of a large volume of water and a small volume of water at the outlet of delivery,

characterized in that the control means comprises a control timer valve (21) having a control delay chamber (22), the arrangement being such that the draining of at least a portion of the delay chamber causes the valve to open and the chamber to close, and actuating means (8) are provided for actuating the emptying of at least one volume of the delay chamber, the actuating means being connected to at least two control buttons (4, 5) such that the thrust of one of the at least two buttons actuates the emptying of a first large volume of the control delay chamber and the thrust of the other of the at least one two buttons actuate the emptying of a second small volume, smaller than the large volume, of the control delay chamber, the actuating means comprising an opening or closing actuating valve (27) for a period of time that can take at least two values, a conduit (28) for emptying the timing chamber of the control timing valve.

2. Hunting according to claim 1, characterized in that the actuating means comprise a rod (8) for actuation.

3. Hunting according to claim 2, characterized in that a pallet (9) is interposed between the two control knobs and the actuating rod and is rotatably mounted relative to a point (10) pivot, the rotation of the pallet causing the rod to move along an actuating stroke.

4. Hunting according to claim 3, characterized in that adjustment means regulate the rotational stroke of the pallet under the effect of the small volume knob, so as to adjust the actuating stroke of the rod when ordered by the small volume button, to adjust the second delivered volume.

5. Hunting according to claim 4, characterized in that that the adjustment means comprise a shim (13) slidably mounted relative to the pallet and comprising a low end section, an intermediate inclined section and a high end section, the shim thus acting on the position of a block (12) from the small volume button, the pad being able, depending on the respective sliding of the shim relative to the pallet, press either on the low section, preferably horizontal, of the shim, or on the inclined section, or slope, the wedge is on the high end section, so that the stud (12) is more or less close to the small volume knob, which regulates the stroke of the rod (8) of 1 initiator.