WO2010100093A1 - Toilet flushing system with delayed opening - Google Patents

Abstract

The invention relates to a device (2) for flushing a toilet, to be installed in a toilet flushing tank (1), wherein said device (2) comprises a float (8) connected to a valve (5) in order to shut said valve when the float is in a higher position and to open the tap when the float is in a lower position, characterised in that the device includes a receptacle (9) in which said float is provided, said receptacle having a discharge opening (10), a flow control member (11) being provided at the discharge opening, said flow control member being adapted so as to enable a flow through the discharge opening in a receptacle inbound direction that is higher than a flow in an outbound direction.

Description

 WATER HUNT WITH DELAYED OPENING

Technical field of the invention

The present invention relates to a device for flushing water, wherein a float is used to close a water tap. State of the art

Typically, a flush includes a tank, a water inlet for filling the tank, and a water outlet for evacuating water for hunting. A flush device is installed in the tank and includes a float connected to a faucet that closes the water inlet when the water level in the tank is high. When hunting, the water level drops, the float goes down and opens the tap. The tank fills up again until the water level is sufficient for the float to close the valve.

A problem with this type of flushing is that, from the beginning of the hunt, the float goes down and the tap opens. The valve and the outlet valve are thus open simultaneously during the flush. The amount of water discharged during the flush is therefore greater than that provided by the filling level of the tank. Summary of the invention

A problem that the present invention proposes to solve is to provide a device for flushing that does not have at least some of the aforementioned drawbacks. In particular, an object of the invention is to provide a flushing device to reduce or cancel the time during which the valve and the outlet valve of the tank are open simultaneously, to avoid a waste of water. 'water.

The solution proposed by the invention is a device for flushing water to be arranged in a flush tank, said device comprising a float connected to a valve so as to close said valve when the float is in a position high and open the valve when the float is in a low position, characterized in that it comprises a container in which said float is arranged, said container having a discharge port, a flow control member being arranged at the level of of the emptying orifice, said flow control member being able to pass a higher flow rate through the emptying port in a direction entering the container only in an outgoing direction.

As the float is arranged in a container, its position is determined by the level of water in the container and not by the level of water in the tank. In case of hunting, the flow control member limits the speed at which the container empties. Thus, the float is temporarily maintained in the high position. The opening of the tap is delayed. It avoids a waste of water because the tank outlet valve and the valve are not (or not long) open simultaneously.

Preferably, the container comprises a bottom wall, the emptying orifice being formed in said bottom wall, said flow control member comprising:

a duct passing through the emptying orifice; a flange fixed to said duct and situated in said container, the flange having dimensions greater than the dimensions of the emptying orifice;

at least one tab attached to said duct and located outside the container. Advantageously, said flow control member is movable between a dump position, in which said flange is in contact with the bottom wall and water can flow out of the container by passing through said duct, and a filling position in which said tab abuts said bottom wall and water can enter said container through said conduit and bypassing said conduit.

Brief description of the figures

The invention will be better understood, and other objects, details, features and advantages thereof will appear more clearly in the following description of a particular embodiment of the invention, given solely for illustrative purposes and not limiting, with reference to the accompanying drawings. On these drawings:

- Figures 1 to 5 are schematic views of a device for flushing according to one embodiment of the invention,

FIGS. 3A and 4A show details of FIGS. 3 and 4, respectively.

Detailed description of an embodiment of the invention Figures 1 to 5 show a device 2 for flushing arranged in the tank 1 of a flush. The device 1 comprises a water inlet duct 3 connected, at the bottom of the tank 1, to a source of water. The duct 3 is surrounded by a cylinder 4 and a tap 5 is fixed to the upper end of the duct 3. When the tap 5 is open, water can enter the tank by passing successively in the duct 3, through the valve 5 and then between the duct 3 and the cylinder 4.

The device 1 also comprises other elements that need not be represented or described in detail, in particular a water outlet valve and an actuation button for this valve.

The valve 5 is controlled by a lever 6. The lever 6 is connected to a float 8 by a rod 7. When the lever 6 and the float 8 are in the positions shown in Figures 1, 2 and 5, the valve 5 is open. When the lever 6 and the float 8 are in the positions shown in Figures 3 and 4, the valve 5 is closed.

The device 1 also comprises a container 9 fixed to the cylinder 4. The container 9 is open upwards and surrounds the float 8. A discharge port 10 is formed in the bottom wall of the container 9. A flow control member 11 is arranged at the emptying port 10. The flow control member 11 is shown in more detail in Figures 3A and 4A. It comprises a duct 12 passing through the emptying orifice 10. The external diameter of the duct 12 is smaller than the diameter of the emptying orifice 10. An annular flange 13 is fixed to the upper end of the duct 12, inside. 9. The large diameter of the flange 13 is greater than the diameter of the emptying port 10. Finally, lugs 14 are fixed to the lower end of the duct 12, outside the container 9. The lugs 14 extend radially from the duct 12 and define a diameter greater than the diameter of the emptying orifice 10.

The distance between the flange 13 and the tabs 14 is greater than the thickness of the bottom wall of the container 9. Thus, the flow control member 11 is movable between the positions shown in Figures 3A and 4A. The operation of the device 2 is as follows. Figure 1 shows the state of the device 2 after a flush operation. The water level in the tank 1 is low. The container 9 is empty. The float 6 is in the low position and the valve 5 is open. The water level rises progressively. When the water level is sufficient, water begins to enter the container 9 through the orifice 10. This incoming water flow acts on the flow control member 11 to place it in the state of Figure 3 A. In this state, the water can pass through the orifice 10 passing through the conduit 12 and passing between the tabs 14 and around the conduit 12. Thus, the flow rate is sufficiently high that the water level 16 in the container 9 is equal to the water level 15 in the tank 1, as shown in Figure 2.

When the water level 16 in the container 9 is sufficiently high, the float 8 goes up and the valve 5 is closed, as shown in FIG.

During the subsequent actuation of the flush, the water level in the tank 1 drops rapidly. Water is also discharged from the container 9 through the emptying port 10. This flow of water passes the flow control member 11 in the state shown in Figure 4A. In this state, the flange 13 is in contact with the bottom wall. The water can only flow through the conduit 12 (if we neglect any leakage flow between the flange 13 and the wall). The flow rate passing through the emptying orifice 10 is therefore limited and the water level 16 in the container 9 does not decrease as rapidly as the water level in the tank 1, as shown in FIGS. 4 and 5.

In Figure 4, the water level 16 is still sufficient to maintain the float 8 in the high position and the valve 5 closed. After a certain time, as shown in FIG. 5, the water level 16 has dropped sufficiently to allow the float 8 to go into the lower position and to open the cock 5.

The device 2 thus makes it possible, by virtue of the flow control member 11, to introduce a time shift between the moment when the water level in the tank drops and the moment the tap 5 is opened. This avoids a waste of water because the time during which the valve 5 and the outlet valve of the tank are open simultaneously is reduced. Although the invention has been described in connection with a particular embodiment, it is obvious that it is not limited thereto and that it comprises all the technical equivalents of the means described and their combinations if they are within the scope of the invention.

The flow control member has been described assuming a circular shape. Alternatively, the flange, the duct and the legs, as well as the emptying orifice, may have a non-circular shape while ensuring the operation described above. There is described a mobile flow control member in translation.

Alternatively, the flow control member could be pivotable.

The described faucet is fed from the bottom. Alternatively, the feed could be lateral.

Claims

1. Device (2) for flushing water to be arranged in a tank (1) flush, said device (2) comprising a float (8) connected to a valve (5) so as to close said valve when the float is in a high position and to open the valve when the float is in a low position, characterized in that it comprises a container (9) in which said float is arranged, said container having a discharge port (10), a flow control member (11) being arranged at the emptying orifice, said flow control member being adapted to pass a higher flow through the emptying orifice in a direction entering the container only in an outgoing direction. 2. Device according to claim 1, wherein the container comprises a bottom wall, the emptying orifice being formed in said bottom wall, said flow control member comprising: - a conduit (12) passing through the orifice of dump, - A flange (13) fixed to said duct and located in said container, the flange having dimensions greater than the dimensions of the emptying port, - at least one lug (14) fixed to said duct and located outside the container. 3. Device according to claim 2, wherein said flow control member is movable between a dump position, wherein said flange is in contact with the bottom wall and water can exit the container passing through said duct. and a filling position in which said tab abuts on said bottom wall and water can enter said container through said conduit and bypassing said conduit.