ES2752803T3 - Device and method for flushing a toilet - Google Patents

Abstract

A toilet flush device, comprising: a flush mechanism having a first lifting device (150) to manually initiate a large volume flush, and a second lifting device (160) to manually initiate a small volume flush ; the valve (130) being raised when the first or second lifting device (150, 160) is moved; a sensor means (120) arranged to generate a signal after recording the input data; and a single motor (190) configured to receive the signal and which is coupled to the first lifting device (150) and the second lifting device (160), said single motor (190) being able to be operated to start, or a discharge of large volume or small volume discharge upon reception of the signal from the sensor medium (120); wherein the discharge mechanism performs a large discharge by the single motor (190) that performs a first movement sequence and a small discharge by the motor that performs a second movement sequence.

Description

DESCRIPTION

Device and method for flushing a toilet

Field of the Invention

The present invention relates to a toilet flush device comprising a flush mechanism having a first lifting device to manually initiate a large volume flush, and a second lifting device to manually initiate a small volume flush. The device further comprises a sensor means arranged to generate a signal after recording the input data.

Prior art

Toilets typically include a toilet bowl, which is adapted to receive solid and liquid waste and water, and a cistern that provides a reservoir for water to flush the bowl. A discharge device is mounted inside the tank, in which the discharge device can operate from outside the tank to initiate the discharge. The discharge device may also be arranged to control the amount of water entering the bowl during the discharge process. Typically, a fill valve is mounted on the tank to fill the tank with a predetermined amount of water to use during a subsequent discharge.

Dual flush toilets can provide a choice between a flush with a first volume of water for liquid waste and a second volume of water for solid waste.

US-A-6081 938 describes a double flush toilet. A flush valve is adapted to mount on a toilet flush and includes a selector assembly. The selector assembly can be accessed from outside the tank and provides the start of the discharge operation and an alternative option between a large volume of discharge water and a small volume of discharge water.

Such a selector assembly is exposed, when accessed, to bacteria present in a user's hand. During frequent use of a toilet having such a selector assembly, the amount of bacteria transferred to the selector assembly increases, and consequently, the selector assembly can act as a disease carrier.

A double flush toilet allows a reduction in the amount of water used for flushing, and therefore meets an increasing demand for the conservation of fresh water. However, there is still a need for toilets that provide better hygienic conditions as well as facilitate service and maintenance. Toilets with sensor controlled flush mechanisms are also known in the art, for example in DE 20 2007 003 163 U1, US 2008/072369 A1, US 5 603 127 A, EP 1602 788 A1 and WO 2007/141627 A2. .

Other double discharge systems are disclosed in FR 2770547, FR 2740793, FR 2835550, WO 2009/156759 A1, US2007 / 079432 A1 and DE 10222193. These documents describe discharge mechanisms that are electronically controlled by operable motors. Although such systems could address the problems of hygienic improvements, a major drawback is the need for batteries or other power sources. When power is lost, the discharge mechanism will not work at all. Therefore, there is a need for precise monitoring of the internal power state or, in the event that external power is used, the wiring is time consuming and costly. One drawback with external power is that the toilet will not work in the event of a power failure.

Therefore, there is a need for a double discharge mechanism that can be operated manually, as well as allowing for improved hygienic conditions.

Summary of the invention

It is an object of the invention to provide a mechanism for a toilet flush device, which overcomes the aforementioned problems.

A further object of the present invention is to provide a modular mechanism to provide a sensor based discharge that can be easily mounted to interact with existing manual discharge mechanisms.

In accordance with a first aspect of the invention, a device for flushing a toilet is provided. The device comprises a single motor configured to receive a signal generated by a sensor means, said motor being connected to a first means to manually initiate a large volume discharge. Said engine it can be operated to initiate a large volume discharge or a small volume discharge after receiving the signal from the sensing medium.

The discharge mechanism performs the large volume discharge by the motor that performs a first movement sequence and a small volume discharge by the motor that performs a second movement sequence. This is advantageous in that the amount of electronic equipment is reduced, thereby providing a cost-effective and space-saving device.

The first sequence of movement comprises performing a continuous back-and-forth movement of a lever arm connected to an axis of rotation of said motor such that said lever arm drives a first or second lifting device to move, and the second movement sequence may comprise a) making a first movement of the lever arm from an inactive position,

b) wait a pre-programmed time, and

c) make a second movement of the lever arm to return said lever arm to its inactive position. Therefore, a single motor is used to perform two operations.

The device further comprises a valve that rises when a first or second lifting device is moved, and a float connected to a levered hook engageable with said valve to prevent said valve from moving in a downward direction when coupled with the levered hook. , in which the motor, during a part of the first and second movement sequence, prevents the float from moving in an upward direction such that the valve is released from the levered hook. This is advantageous because programming the waiting time at different values can control the amount of water corresponding to the second volume discharge.

The sensor means may comprise a photographic detector that records the movements of a user, a digital processor that records a timer alarm, or a revolution counter that registers the number of revolutions of the rotation shaft. Therefore, hygienic conditions are improved and unloading operations can be started without the presence of a user. In addition, specific maintenance alarms can be automatically generated.

In accordance with a second aspect of the invention, there is provided a toilet comprising a device according to the first aspect of the invention. The advantages of the first aspect of the invention can also be applied to this second aspect of the invention.

In accordance with a third aspect of the invention, there is provided a method of flushing a toilet that comprises a device according to the first aspect. The method comprises the steps of recording the input data by means of a sensor means, generating a signal corresponding to the recorded input data, operating the device to discharge the toilet by transmitting the signal to the engine connected to said first means, and operating the motor to initiate said large volume discharge or said small volume discharge. The advantages of the first aspect of the invention can also be applied to this third aspect of the invention.

Brief description of the drawings

Hereinafter, the invention will be described with reference to the accompanying drawings, in which:

Fig. 1 is a schematic perspective view of a double discharge sensor mechanism according to a first embodiment of the present invention.

Figure 2 is a schematic side view of the embodiment shown in Figure 1, shown in a state of rest.

Fig. 3 is a schematic side view of the embodiment shown in Fig. 1, shown in an initiated state of a first or second discharge mode,

Fig. 4 is a schematic side view of the embodiment shown in Fig. 1, shown in a further state of the first discharge mode,

Fig. 5 is a schematic side view of the embodiment shown in Fig. 1, shown in a later state of the first discharge mode, and

Fig. 6 is a schematic perspective view of a double discharge sensor mechanism in accordance with another embodiment of the present invention.

Description of embodiments

In FIG. 1, a discharge device 100 according to the present invention is shown. The flush device 100, hereinafter referred to as the dual flush mechanism, is adapted to be installed in a flush water tank (not shown) from a toilet in a manner well known to experts in the field. Discharge device 100 comprises a manual control knob 110 having first and second control surfaces 110a, 110b, after depression from which a small or large discharge can be chosen, respectively. Control knob 110 is leveraged in a central portion such that when the first control surface 110a is pushed down, the second control surface 110b will move up.

Referring to both FIG. 1 and FIG. 2, the double flush mechanism 100 further comprises a valve 130, which opens a conduit 140 from the flush water tank to a toilet bowl (not shown) after rising. Opening the duct results in flushing of the toilet bowl. In a specific embodiment, valve 130 may be an overflow valve, that is, a pipeline that allows excess water to drain in the event of tank flushing.

In order to control the opening and closing of the conduit 140 by raising and lowering the valve 130, a small discharge lifting device 160 and a large discharge lifting device 150 are arranged on opposite sides of the valve 130. Both devices Lift 150, 160 move around shafts 165, 155, respectively, such that a pressure movement from either control surface 110a or 110b will result in a lift movement of valve 130. However, the valve lift movement 130 will be limited if the valve is raised by the small dump lift device 160; As can be seen in Figure 1, valve 130 is provided with a lift restriction knob 135. Lift restriction knob 135 will interact with a fork-shaped counter bearing 167 attached to the small dump lift device 160 if this device The lifting mechanism is actuated to raise the valve 130, and therefore limit its upward movement. If the small dump lift device 160 is in its home position, which will be if the valve 130 is raised by the large dump lift device 150, there will be no interaction between the lift restriction knob 165 and the counter bearing 167 as valve 130 rises.

Valve 130 is further provided with a float 132 which acts to raise valve 130, provided that a water level in the discharge water tank is above a certain level.

A levered hook 170 is connected between a second float 180 and valve 130 such that levered hook 170 will lock valve 130 in an elevated position, provided that:

to. valve 130 has been raised enough to allow a locking engagement between toggle hook 170 and valve 130, and

b. the discharge water level in the discharge water tank is above a certain level (which can be controlled by moving the position of the second float 180 along an elongated rod 182.

Next, the mechanisms behind a small discharge and a large discharge will be described; The discharge water level in the discharge water tank is assumed to be at its highest level when a discharge sequence begins.

In a state of rest, that is, before a small discharge or a large discharge is started, the water contained in the discharge water tank subjects the valve 130 to a pressure of the water on its upper surface, therefore, propelling valve 130 in a downward direction, and sealing conduit 140.

For a large discharge, the user presses the first control surface 110a; As a result of this, the control knob 110 will move to drive the large dump lift device 150. Actuation of the large dump lift device 150 will raise valve 130 from conduit 140, and valve 130 will continue to rise due to the first float floating in the water in the cistern. When valve 130 is raised, water will begin to escape through conduit 140. The water contained in the discharge water cistern thus subjects valve 130 to a pressure of water on both its upper and lower surface, and valve 130 is no longer driven solely in the downward direction. Therefore, valve 130 is allowed to rise due to the lifting force of the first float. The raising of the valve 130 will continue to a sufficient elevation to allow a blocking movement between the valve 130 and the lever hook 170. The blocking movement between the lever hook 170 and valve 130 will continue until the water level in the cistern has reached a predetermined level, which, as mentioned, can be adjusted by altering the position of the second float 180 along the elongated rod 182. As the level of discharge water in the cistern decreases below the predetermined level, the second float 180 will move downward, thereby forcing the levered hook 170 to be released from the valve 130, and the valve 130 will fall back to the position where it blocks the conduit 140. After the large discharge, the cistern will fill once again.

For a small discharge, the user presses the second control surface 110b. As a result of this, the control knob 110 will move to drive the small dump lift device 160. As mentioned above, the counter bearing 167 of the small dump lift device 160 will then move to a position where it will stop valve 130 moving upward by interaction with lift restriction knob 135 (valve 130 will continue to rise if raised without interference between elevation restriction 135 and counter support 167, due to the lifting force of the first float that is submerged in discharge water in the tank). Due to the limitation of valve 130 elevation, the levered hook 170 will not block valve 130 and as a result valve 130 will fall back to the position where it blocks duct 140 as soon as the discharge water level has reached a level where the first float does not provide any lifting force acting on valve 130.

Heretofore, a manual double flush system according to the prior art has been described to facilitate the understanding of the invention, which refers to a flush mechanism comprising a motor and a sensor, described hereinafter. the function of your devices.

Referring to Figures 1 to 5, a first embodiment of the present invention is shown. The embodiment is identical to the manually operated embodiment described above, with the exception that the first embodiment is provided with a means to allow automatic double discharge.

In accordance with the first embodiment, a sensor 120 is electrically connected to a single motor 190. Motor 190 is connected to a lever arm 192. Lever arm 192, which extends from a first end to a second end, is connected eccentrically at the first end to a rotary shaft 194 of motor 190. Lever arm 192 is connected to large discharge lifting device 150 at its second end. Lever arm 192 is provided with an elongated opening at the connected end to the large unloading lifting device 150. The arrangement with the elongated opening makes it possible to perform manual unloading without activating the motor 190, since the large unloading lifting device 150 is free to move in the elongated opening when the unloading device 100 it is manually operated.

The second float 180 is connected to a rod 196 that extends vertically towards the top of the double discharge mechanism 100.

Referring now to Figure 2, the double discharge mechanism is shown in a rest position, i.e., a closed mode. Valve 130 is positioned such that line 140 is closed, that is, no water is drained through line 140. Accordingly, neither the large discharge lifting device 150 nor the small discharge lifting device 160 Neither motor 190 acts on valve 130.

Referring to Figures 3, 4 and 5, a large volume discharge will be described. When a large volume dump is started, the motor 190 performs a first movement sequence, which corresponds to a rapid revolution of the rotary shaft 194. During the first half turn of the rotary shaft 194, the large dump lifting device 150 pushes the valve 130 in an upward direction, such that conduit 140 opens. This is specifically shown in Figure 3. At the same time, the elongated rod 196 is pushed in a downward direction by means of the lever arm 192, thereby forcing the second float 180 to move downward. Thus, the levered hook 170 connected to the second float 180 tilts away from valve 130. When the motor has made its 180 ° revolution, the first float 132 attached to valve 130 causes valve 130 to move even further. above. The total movement of valve 130 is approximately 20 mm, of which the large discharge lifting device 150 causes a movement of 12 mm, and the float causes a movement of 8 mm. When the motor 190 performs the subsequent 180 ° revolution, the large dump lift device 150 is released from the valve 130 and the large dump lift device 150 returns to its rest position. This is specifically shown in Figure 4. At the same time, the lever arm 192 reduces the force applied to the elongated rod 196, and the second float 180 is allowed to move upward. By this movement, the levered hook 170 will return to its position where it can engage valve 130. Therefore, full rotation must occur before the water level within the tank is below the first float 132; otherwise a large download will not start.

As conduit 140 allows water to drain, the first float attached to valve 130 will no longer eventually cause valve 130 to move upward. However, the levered hook 170 that is connected to the second float 180 prevents the valve 130 from closing the conduit 140. As the level of discharge water in the tank has decreased below the predetermined level, which has been established by adjusting the position of the second float 180, the second float 180 will move downward, thereby forcing the levered hook 170 to release valve 130. This is shown in Figure 4. When the levered hook 170 is released from valve 130, the valve 130 will drop back to the position where it blocks conduit 140.

Referring to Figure 3, a small volume discharge will be described. When the small discharge is started, the motor 190 performs a second movement sequence, starting with a rapid half-turn revolution of the rotary shaft 194. After this, the motor 190 is configured to wait a preprogrammed time, and then performs a continuous revolution of half a turn of the rotating shaft 194.

During the initial half turn of rotary shaft 194, the device behaves in the same manner as described with reference to large volume discharge.

When the 190 motor is waiting for the preprogrammed time to pass, a certain amount of water, i.e., a sufficient amount of water to bring the water level below the first float, is allowed to drain through the conduit 140. The preprogrammed time for motor 190 to wait is such that valve 130 is allowed to move downward by lowering the water level to a position where levered hook 170 cannot block valve 130. Therefore, when the preprogrammed time has passed, motor 190 will make a continuous half-turn revolution to release the force applied to rod 196. Next, second float 180 will move upward, and since valve 130 is locates in a low enough position, the levered hook 170 will not block valve 130 and conduit 140 will close.

Referring to Figure 6, a second embodiment of a device for flushing a toilet will be described. The device, arranged within a cistern 200, comprises a means for manually performing a large volume discharge and a small volume discharge, in which said means is similar to the manual discharge means described with reference to Figure 1. A single Motor 290 is electrically connected to a sensor (not shown). Furthermore, motor 290 is connected to a first lever arm 292 and to a second lever arm 293, both lever arms 292, 293 being connected eccentrically to a rotating shaft 294 of motor 290. The first lever arm 292 is connected to the large discharge device 150, and the second lever arm 293 can be connected to the small discharge device 160. The first lever arm 292 can be integrally formed with the second lever arm 293. The motor 290 is arranged laterally between the discharge devices first and second 150, 160

Large discharge device 150 and small discharge device 160 are free to move without engaging with first or second lever arms 292, 293. Therefore, a manual discharge can be performed without energizing motor 290.

When a discharge is not performed, the motor 290 is arranged in a rest position, where the lever arms 292, 293 do not apply any pushing force on the lifting devices 150, 160. The motor 290 can be operated to initiate a discharge large volume performing a first motion sequence and a small volume discharge performing a second motion sequence.

When a large volume discharge is initiated, the motor 290 rotates 90 ° clockwise, thereby applying a pushing force on the first lifting device 150. During this movement, the second arm Lever 293 moves away from second lifting device 160. Motor 290 immediately makes a counterclockwise rearward rotation, so that motor 290 returns to the idle position. Due to the applied pushing force, the first lifting device 150 lifts the valve 130, and a large volume discharge is initiated in accordance with what has been described above in connection with manual discharge.

When a small volume discharge is initiated, motor 290 rotates 90 ° counterclockwise from the rest position, thereby applying a pushing force on the second lifting device 160. During this In motion, the first lever arm 292 moves away from the first lifting device 150. The motor 290 immediately performs a subsequent clockwise rotation, so that the motor 290 returns to the idle position. Due to the applied pushing force, the second lifting device 160 lifts the valve 130, and a small volume discharge is initiated in accordance with what has been described above in connection with manual discharge.

In one embodiment, the first lever arm 292 is provided with an elongated opening at the end connected to the large discharge device 150. The second lever arm 293 is provided with an elongated opening at the end connected to the small discharge device 150. This allows manual discharge without energizing the 290 motor.

In a still further embodiment, motor 290 is disposed on one side of the discharge mechanism, and lever arms 292, 293 are interconnected.

In a still further embodiment, which is not within the scope of the claims, a discharge based sensor may be provided by arranging the motor in such a way that only the movement of the second lifting device, i.e. the lifting device, is affected. elevation used to manually start a small discharge volume. Such an arrangement has a mechanical configuration to manually initiate a large discharge and a small discharge, respectively.

In this specific embodiment, the motor receives a signal from the sensor corresponding to a large or small discharge. In the case of a small discharge, the motor performs a rapid revolution. During the first half of the revolution, the lever arm connected to the motor drives the second lifting device to move, thereby initiating a small discharge. During the immediate subsequent half return revolution, the lever arm will reduce the force on the second lifting device so that it can return to its idle position. Therefore, a small download is initiated according to what has been described above. In the case of a large discharge, the motor performs a half revolution also in this case, driving the second lifting device to move to initiate a small dump. However, when the second lifting device is in this position, the motor is programmed to wait a predetermined time. Therefore, the second lifting device is kept in this position and the valve is prevented from moving downwards by means of the float. The water is then allowed to escape into the toilet bowl, until the engine makes a half revolution of return to allow the second lifting device to return to its idle position. After this, the valve is allowed to close due to the reduced amount of water in the tank. The preprogrammed time can be easily adjusted to determine the amount of water that should be used for a large discharge. This is specifically advantageous since the same system, which has different programmed times, can be used in different countries where the standards for large discharge volumes are different.

Next, sensor 120 will be described in more detail. Sensor 120 can be implemented for all of the embodiments described above.

As can be seen from the figures, sensor 120 is positioned adjacent to control knob 110. Sensor 120 may be, for example, a photodetector that is programmed to detect whether a user is holding their hand over sensor 120. In addition, the sensor determines how long the user's hand is above sensor 120 and generates a signal that corresponds to whether the user's hand is above sensor 120 for a long or short time.

In a specific embodiment, sensor 120 generates a signal corresponding to a small volume shock if the user's hand is on the sensor for at least 1.5 seconds, and the sensor generates a signal corresponding to a large volume shock if The user's hand is on the sensor for 1.5 seconds or more.

Sensor 120 can be configured to detect movements that occur between 0 and 50 cm from sensor 120, and in particular between 0 and 15 cm from sensor 120.

In another embodiment, a sensor 120 is positioned such that it detects if a user is standing in front of the toilet or sitting on the toilet. Therefore, sensor 120 generates a first signal that corresponds to a short detection if the user is standing in front of the toilet, and a second signal that corresponds to a long detection if the user is sitting on the toilet.

In a further embodiment, a sensor 120 is positioned such that it detects whether a user is sitting on the toilet for a long or short time. For example, sensor 120 generates a first signal that corresponds to a short detection if the user is sitting on the toilet for less than 1 minute, and a second signal that corresponds to a long detection if the user is sitting on the toilet for more than 1 minute. 1 minute.

The motor can have a rotation speed of approximately 300 rpm. The preprogrammed time for the engine to wait can be approximately 1.5 seconds, allowing approximately 2.5 liters of water to drain from line 140.

The engine can be programmed to initiate a download operation at specific times, at certain time intervals, or after a specific number of download operations performed.

In one embodiment, the engine comprises a sensor that counts the total number of revolutions performed, that is, the total number of discharge operations performed. The sensor can communicate with a computer and transmit a signal of when service or maintenance should be performed. This is advantageous because the counted number of engine revolutions can be used to determine when the toilet should be cleaned. This is of particular interest in public areas where a large number of toilets are cleaned at regular intervals. Therefore, cleaning personnel can be informed of which toilets have been used, thereby improving the effectiveness of the cleaning procedure. Furthermore, the number of revolutions counted can be used to determine the need to fill the toilet paper. In yet another embodiment, the count of the number of revolutions can be divided to count separately the number of revolutions corresponding to a large volume discharge, and the number of revolutions corresponding to a small volume discharge. These two different numbers of revolutions can be used as a parameter to start reloading toilet paper. For example, a large volume discharge will likely correlate with a higher consumption of toilet paper than a small volume discharge. Therefore, the cleaning and maintenance efficiency of public toilets is further improved.

In another embodiment, the motor is connected to a computer means such that the preprogrammed time for the motor to wait can be adjusted to different values. This can be done remotely by connecting said motor to a server, or locally by connecting said motor to a computer by means of a cable. In such embodiments, the second volume discharge will correspond to different discharge volumes as a function of the preprogrammed time. In an embodiment described above, the preprogrammed time is always set in 1.5 seconds. In another embodiment, the preprogrammed time may, for example, be set to 5 seconds on one occasion every 24 hours in order for the tank to be completely emptied. The default time can, for example, always be set to 3 seconds to always perform a large volume download. In this case, the second volume discharge corresponds to a discharge volume equal to the volume of the large volume discharge.

In some installations, the sewage pipes connected to the toilets may be narrow or specifically long. Therefore, the discharge volume of a small discharge will not be sufficient to discharge the complete garbage from the pipes. To overcome this problem, the motor can be connected to a digital processor that registers a timer alarm, after which a large volume discharge is initiated by activating the motor to perform the large volume discharge. The timer can alarm, for example, every 24 hours, resulting in a large volume download automatically started once a day. Another option to overcome the above problem is to initiate a small flush at specific time intervals, where the preprogrammed time is changed to allow complete flushing of the tank. For hygienic purposes, the predetermined time can be set to increase the discharge volume of the small discharge such that the volume of a small discharge equals the volume of a large discharge. Furthermore, the sensor can be configured to always generate a signal corresponding to the large volume discharge, regardless of the detected signal. This is advantageous in hospitals or other facilities where hygienic conditions are important.

In one embodiment, the motor comprises a servo mechanism that includes a servo motor. In another embodiment, the motor comprises a linear actuator.

It should be noted that the rev count as described above, as well as the preprogrammed time setting could be used as such to improve toilet service and maintenance, as well as hygienic conditions, without relying on other features described herein. document.

It should also be noted that any of the mechanisms could be used to effect a small or large flush in both wall and standing toilets.

The present invention has been described above with reference to specific embodiments. However, other embodiments than those described above are equally possible within the scope of the invention. The invention is limited only by the appended claims.

Claims (6)

1. A device for flushing a toilet, comprising: a valve (130); a discharge mechanism having a first lifting device (150) to manually initiate a large volume discharge, and a second lifting device (160) to manually initiate a small volume discharge; the valve (130) being raised when the first or second lifting device (150, 160) is moved; a sensor means (120) arranged to generate a signal after recording the input data; and a single motor (190) configured to receive the signal and which is coupled to the first lifting device (150) and the second lifting device (160), said single motor (190) being able to be operated to initiate, or a volume discharge large or a small volume discharge after reception of the signal from the sensor medium (120); wherein the discharge mechanism performs a large discharge by the single motor (190) that performs a first movement sequence and a small discharge by the motor that performs a second movement sequence. The device according to claim 1, wherein the first or second movement sequence comprises performing a back-to-front movement of a lever arm (192) connected to a rotation axis (194) of said motor ( 190) such that said lever arm (192) drives the first or second lifting device (150, 160) to move, and wherein the other of said first or second movement sequence comprises a) make a first movement of the lever arm (192) from an inactive position such that said lever arm (192) drives the first or second lifting device (150, 160) to move, b) wait for a time pre-programmed in such a way that the first or second lifting device (150, 160) is held in its driven position, and c) performing a second movement of the lever arm (192) to return said lever arm (192) to its inactive position such that said lever arm (192) no longer drives the first or second lifting device (150, 160) to move. 3. The device according to claim 1, wherein the valve (130) is raised when the first or second lifting device (150, 160) is moved, and a float (180) is connected to a levered hook ( 170) engageable with said valve (130) to prevent said valve (130) from moving in a downward direction when coupled with the levered hook (170), in which the motor (190), during a part of the sequence of First and second movement prevents the float (180) from moving in an upward direction such that the valve (130) is released from the levered hook (170). The device according to any one of the preceding claims, wherein the sensor means (120) comprises a photographic detector that records the movements of a user, a digital processor that records a timer alarm or a revolution counter that records the number of revolutions of the rotation shaft (194). 5. A toilet, comprising a device according to any one of claims 1 to 4. 6. A method of flushing a toilet bowl comprising a device according to any one of claims 1 to 4, said method comprising the steps of: recording the input data by means of a sensor means, generate a signal corresponding to the recorded input data; actuating the device for flushing the toilet according to any of the preceding claims 1 to 4, by transmitting the signal to the only motor connected to the first and second lifting device, and operating the single motor to initiate said large volume discharge or said small volume discharge.