A cartridge is adapted to be inserted removably into a drain hole of a urinal, and includes a cartridge body, a guide plate member, a detecting module and a filter unit. The cartridge body has an internal space having an opening. The guide plate member is disposed in the opening, and is perforated to guide liquid which exits the urinal via the drain hole to flow therethrough into the internal space. The detecting module includes a drug-detecting chip for detecting presence of a specified drug, and a controlling chip for controlling operation of the drug-detecting chip according to measured displacement of the guide plate member. The filter unit utilizes a channel to direct the liquid from

A water-saving device that addresses the problem of saving drinking water when using flush toilets, such as in households and in public facilities. The device has a hollow profile of a guiding part, into which a hollow inner profile with a collection container is inserted. The device is not a part of the toilet but can be easily connected to it and used at any time. The device can be used on both the inside and outside of the toilet, for men, women and children.

A non-flushing urinal system with a large sealing and flow area using a bell-shaped valve with supporting ribs on its interior surface, which utilizes low crack pressure, or ease of initial opening to create for high flow rate and superior sealing.

Various embodiments of a device for regulating a fluid flow are described that can include first and second downwardly-sloping valves that are biased in a closed position to prevent odors from escaping the device. The device can also include first and second downwardly-sloping valve seats, and configured such that an end portion of the first valve can be seated beneath the first valve seat and an end portion of the second valve can be seated beneath the second valve seat when the first and second valves are in a closed position, respectively.

An apparatus and method for a toilet which minimizes water usage and that can handle both urine and fecal matter. An ultrasonic vibration cleaner unit is disposed to clean at least one fecal plate which is rotated into a lower part of a toilet bowl containing water. Occasional and periodic flushing of solid fecal matter results in less water usage than utilizing water flushing for cleaning and carrying away of solid fecal matte each time of use.

The present invention relates to a waterless urinal, in which a urine guide rod of a urine guide member is coupled to a discharge guide surface of a discharge guide member such that a discharge guide surface is quickly opened by urine moving to the urine guide member, thereby increasing a drainage velocity of urine, and thus sludge, scale, and a urinary calculus formed by the protein of urine are not generated, such that the function of the discharge guide surface may be maintained.

A urinal with a sanitation device capable of preventing the generation of a smell and urine scale with reliability without reducing a water conservation effect. In the urinal US, a liquid agent is ejected in different modes by predetermined timing according to areas on the urinal US.

A drain valve has a housing defining a drain conduit for the passage of fluids to be drained, the drain conduit having a first rim defining an inlet to the drain conduit opposite a second rim defining an outlet from the drain conduit. One or more non-return valves are within the drain conduit between the first rim and the second rim and have a closed configuration and an open configuration adapted to allow fluids to flow through the outlet of the drain conduit. A vent conduit extends within the drain conduit and comprises internally a lower valve seat, an upper valve seat and a bypass valve positioned between the lower valve seat and the upper valve seat. The bypass valve is adapted to allow gas to bypass the one or more non-return valves and escape to atmosphere when the gas reaches a predetermined pressure.

A urinal capable of constraining the occurrence of uric scale in a discharge horizontal branch pipe even if flush water volume has been reduced by water conservation is disclosed. A urinal includes a control unit with a main flush mode M0; a first equipment flushing mode M1 in which a portion of flush water flushes the upstream side of a connecting portion; and a second equipment flushing mode M2 in which a portion of flush water flushes the upstream side of the connecting portion. At least one of either the first mode M1 or the second mode M2, the value of the discharge volume or the discharge instantaneous flow volume discharged is set to be equal to or greater than the value of the discharge volume or the discharge instantaneous flow volume in the main flush mode.

A drain valve device includes a drain valve housing arranged to be located within a drain opening. The housing has a wall structure surrounding an axis so as to define an internal flow passage through the housing and a strut member depending radially inwardly from the wall structure. The device has one or more valve members. A gas vent passage may be provided in the housing and a vent valve or control member may be provided to selectively prevent flow through the gas vent passage.