A hidden water tank includes a water tank body, including a water inlet assembly and a pneumatic drainage assembly; and a driving panel detachably connected to the water tank body. The driving panel includes one of a pneumatic driving panel, a mechanical driving panel, or an electric driving panel. The mechanical driving panel and the pneumatic drainage assembly are connected through a first driving conversion module configured to convert a mechanical driving force generated by the mechanical driving panel into a first air pressure-driving force. The electric driving panel and the pneumatic drainage assembly are connected through a second driving conversion module configured to convert an electrical signal generated by the electric driving panel into a second air pressure-driving force.

A toilet flushing system comprising a cylindrical receiver into which flush water is received through a fill valve; a float operating within a float chamber that is fluidly connected to said cylindrical receiver to open and close said fill valve according to the water level in said cylindrical receiver; and a displacer rotatably attached to an axis inside said cylindrical receiver to displace any required fraction of water from said cylindrical receiver into a bowl relative to the angle of rotation.

A universal canister flush valve having a valve body configured to be fixed relative to a toilet tank and having a hollow wall defining an internal flow passage; a guide post coupled to and extending away from the valve body; a float fitted about and configured to slide relative to the guide post between a closed position and an open position, the float having an open top; and an extender that selectively couples to the open top in a first position, in which a first end of the extender is received in and coupled to the open top, and in a second position, in which a second end of the extender is received in and coupled to the open top, wherein the extender and float define a first overflow height in the first position and define a second overflow height in the second position.

A siphonic flush toilet system and method of priming the same having a toilet bowl assembly comprising at least one jet flush valve assembly and at least one rim valve; and bowl having a rim and a jet defining at least one jet channel, the at least one jet channel having an inlet port and a jet outlet port configured for discharging fluid to a sump area, wherein the sump area is in fluid communication with a trapway. The bowl has a closed jet pathway including the jet channel and extending from the jet flush valve assembly outlet to the jet channel outlet port to maintain the jet channel in a primed state with fluid from the jet flush valve assembly so as to assist in preventing air from entering the closed jet pathway. Flush valves are also disclosed having back-flow preventer mechanisms and/or at least partly flexible valve covers for use with the toilet systems and methods herein.

The present disclosure relates to the technical field of toilet equipment, particularly to a toilet. The toilet includes a toilet body, a water tank, an air isolation device, and a water pump, wherein the toilet body is provided thereon with a spout directly facing a sewage exit; the water pump is configured to draw water from the water tank, a water outlet of the water pump is in communication with the spout of the toilet body via the air isolation device, and the air isolation device is configured to block reverse flow of sewage from the spout of the toilet body to the water tank.

A siphonic flush toilet system and method of priming the same having a toilet bowl assembly comprising at least one jet flush valve assembly and at least one rim valve; and bowl having a rim and a jet defining at least one jet channel, the at least one jet channel having an inlet port and a jet outlet port configured for discharging fluid to a sump area, wherein the sump area is in fluid communication with a trapway. The bowl has a closed jet pathway including the jet channel and extending from the jet flush valve assembly outlet to the jet channel outlet port to maintain the jet channel in a primed state with fluid from the jet flush valve assembly so as to assist in preventing air from entering the closed jet pathway. Flush valves are also disclosed having back-flow preventer mechanisms and/or at least partly flexible valve covers for use with the toilet systems and methods herein.

A touchless actuation system for a toilet includes a touchless sensor, a motor assembly, and a processing circuit. The touchless sensor is located within a closed reservoir of the toilet. The processing circuit is configured to receive a signal from the touchless sensor and to detect an object within a detection region based on the signal. The detection region is external to the closed reservoir. The processing circuit is configured to facilitate flushing of the toilet through interaction with the motor assembly when the object is detected.

A height-adjustable upright tube-cage unit comprising a telescopic cage which comprises an inner cage and an outer cage, and a telescopic upright tube which comprises an inner upright tube and an outer upright tube and is accommodated in the cage, wherein the elements inner cage, outer cage, inner upright tube, and outer upright tube can be connected to each other via a shared, telescopic scaffolding, wherein the scaffolding is adjustable between a first detent position, in which the inner cage is latched with the outer cage and the inner upright tube is latched with the outer upright tube, wherein the upright tube is longitudinally displaceable within the cage, and a second detent position, in which an upper cage part is latched with an upper upright tube part, and a lower cage part is latched with a lower upright tube part.

A height-adjustable upright tube-cage unit comprising a telescopic cage which comprises an inner cage and an outer cage, and a telescopic upright tube which comprises an inner upright tube and an outer upright tube and is accommodated in the cage, wherein the elements inner cage, outer cage, inner upright tube, and outer upright tube can be connected to each other via a shared, telescopic scaffolding, wherein the scaffolding is adjustable between a first detent position, in which the inner cage is latched with the outer cage and the inner upright tube is latched with the outer upright tube, wherein the upright tube is longitudinally displaceable within the cage, and a second detent position, in which an upper cage part is latched with an upper upright tube part, and a lower cage part is latched with a lower upright tube part.

This invention relates to a cistem (1010): More specifically, the invention relates primarily to concealed cisterns for toilets having integrated, and preferably adjustable, dual-flushing and odour extraction capability. The cistem (1010) includes a primary chamber (1020) for storing a volume of liquid, a liquid inlet (1026) for the primary chamber (1020) of the cistem (1010) with liquid, an air outlet (1028) for exhausting air from the primary chamber (1020) of the cistem (1010) operatively during filling; and a liquid outlet (30) through which liquid operatively stowed in the primary chamber (1020) of the cistem is dischargeable. The cistem (1010) further includes a fill valve for controlling liquid supply into the primary chamber from the liquid inlet (1026) and a flush valve (60) for controlling flow through the liquid outlet (30). The flush valve (60) comprises of a flush valve seat and a flush plug (1064) being moveable relative to the flush valve seat between an open position, wherein the flush plug (1064) is displaced from the flush valve seat thereby to open the liquid outlet (30) and enable the liquid in the primary chamber (1020) to discharge there through during flushing, and a closed position, wherein the flush plug (1064) is seated on the flush valve seat thereby to close the liquid outlet (30) and prevent the passage of liquid there through. The cistern (1010) also includes at least one actuator (1070) for actuating displacement of the flush plug (1064) from the closed position to the open position, and a controller (1123) for controlling one or more of a group of flushing conditions including: (i) flush type, wherein the cistem (1010) is adjustable between a single flush, dual-flush, on-demand flush or a combination of such flush type conditions; and (ii) flush time, wherein the time of the displacement of the flush plug (1064) by the actuator (1070) for each flush type condition is adjustable.