Device for automatic release of a flushing process in urinals or similar sanitary appliances

An apparatus for automatic triggering of a flushing process after usage of a urinal or similar sanitary engineering installation, such as a toilet, wherein at least one target (1.4) is disposed in a water trap (siphon) (1.15) of the urinal exhibiting a feed-in inlet (1.1) and a discharge outlet (1.14), which target changes its position upon level changes (1.13,1.14, 1.5, 2.1,2.2, 2.3) of the liquid contained in the siphon (1.15), and wherein the change in position is captured by a sensor (1.8,1.9), which sensor causes the generation of a switching pulse (1.10) then when the liquid level changes by a predetermined amount, and wherein the switching pulse triggers an electro-water valve or, respectively, a magnet controlled water valve, thereby the opening of the water valve and the initiation of the flushing process is caused, characterized in that a discharge barrier (1.6) is disposed in the discharge outlet (1.14) of the siphon (1.15), wherein the discharge barrier (1.6) is furnished with an opening (3.3), wherein the cross-section of this opening (3.3) is dimensioned such that only a volume stream smaller than the average urine volume per time unit is possible through this opening (3.3) and wherein the target (1.4) is disposed in the region of the discharge barrier (1.6);

• wherein a further hollow body disposed in front of the barrier in the water trap is level adapted next to the water trap connected such that this connection allows to flow in fed-in liquid into the hollow body below the discharge barrier of the water trap, and wherein the hollow body is connected in the lower region by a discharge direction discharge outlet of the water trap;
• wherein a float with a target, in particular a magnet, is movably disposed in the second hollow body and wherein a sensor, in particular a magnet switch is disposed spatially fixed, wherein the sensor causes the generation of a switching pulse upon approach of the target by floating of the float, which switching pulse triggers a flushing process.

An apparatus for automatic triggering of a flushing process after usage of a urinal or similar sanitary engineering installation, such as a toilet, wherein at least one target (1.4) is disposed in a water trap (siphon) (1.15) of the urinal exhibiting a feed-in inlet (1.1) and a discharge outlet (1.14), which target changes its position upon level changes (1.13,1.14, 15, 2.1,2.2, 2.3) of the liquid contained in the siphon (1.15), and wherein the change in position is captured by a sensor (1.8,1.9), which sensor causes the generation of a switching pulse (1.10) then when the liquid level changes by a predetermined amount, and wherein the switching pulse triggers an electro-water valve or, respectively, a magnet controlled water valve, thereby the opening of the water valve and the initiation of the flushing process is caused, characterized in that a discharge barrier (1.6) is disposed in the discharge outlet (1.14) of the siphon (1.15), wherein the discharge barrier (1.6) is furnished with an opening (3.3), wherein the cross-section of this opening (3.3) is dimensioned such that only a volume stream smaller than the average urine volume per time unit is possible through this opening (3.3) and wherein the target (1.4) is disposed in the region of the discharge barrier (1.6);

• wherein the opening (3.3) is disposed below the level of the discharge barrier (1.6) and wherein the opening (3.3) enables the discharge of the water to the level of the discharge outlet (1.14);
• wherein the target is a float (1.4), wherein at least one magnet (1.8) is disposed at the float (1.4) as well as the sensor comprises a magnet contact (1.9), wherein the magnet contact (1.9) is closed upon approach of the magnet (1.8);
• wherein the float (6.1,7.4) supports a hollow body (6.2,7.5), wherein the hollow body exhibits a discharge opening (6.3) of a small cross-section, wherein the hollow body (6.2,7.5) is disposed such in the siphon, that the hollow body is filled with the fed-in urine, which causes a change in position of the float (6.1,7.4), whereby a switching pulse is triggered.