An intermediate water-saving closestool water tank. A basin drain pipe is connected to the closestool water tank. Before the closestool is used, a time-delay valve (13) or a ping-pong valve is pressed so that tap water is supplemented when the water supply tank of the basin is not full. After the tap water is supplemented in the water tank and before the closestool is flushed, the ping-pong valve needs to be pressed again to prevent a ball float type water supplementary valve (14) from automatically supplementing tap water subsequently. The time-delay valve (13) does not need to be pressed again, and a flushing valve (17) is pressed normally when the closestool is flushed. Two flap valves are arranged at the bottom of the basin, one of the flap valves is directly connected to the drainage sewer, and the other one is communicated with the closestool water tank. The device achieves energy-saving and water-saving purposes.

A method and system having a water-flush toilet having a toilet bowl that is in fluid communication with a water source and is mounted with a sensor. The sensor includes a transmitter to transmit an ultrasonic signal and a receiver to receive an ultrasonic signal. The sensor may measure a Time of Flight (ToF) of the signal to obtain a ToF measurement. A microcontroller is electrically connected to the sensor and may receive and process the ToF measurement using an algorithm to determine a bowl status. The toilet also includes at least one water valve that is disposed between the bowl and the water source, and that is electrically connected to the microcontroller for instructing the at least one water valve to move from a first position to a second position for a duration of time, wherein the duration of time corresponds to the bowl status.

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 regulating device for regulating water consumption of a concealed water tank includes a water tank, a hinged base is fixedly arranged on the inner wall of the water tank, a water separator is hinged on the hinged base. A regulating mechanism is arranged between the hinged base and the water separator, and the regulating mechanism can drive the water separator to rotate and fix to divide the accommodation space of the water tank. Compared with the prior art, the regulating device realizes the variable volume of the water tank by regulating the rotation of the water separator through the regulating mechanism. The structure is simple and convenient for the later repair and maintenance of the water tank.

A flush toilet according to embodiments includes: a toilet body, a function unit, a panel member, and a holding part. The function unit is arranged in a rear part of the toilet body. The panel member covers a side surface of the function unit. The holding part causes the toilet body and a side surface of the panel member to attract and hold to each other by using magnetic force. In a state where being attached to the toilet body, the panel member is formed to be curved toward the toilet body. The holding part is formed such that an attraction surface of a panel-side magnetic material that is provided to the panel member and an attraction surface of a body-side magnetic material that is provided to the toilet body are formed in plane-shaped.

A flush toilet according to embodiments includes: a toilet body, a function unit, a panel member, and a holding part. The function unit is arranged in a rear part of the toilet body. The panel member covers a side surface of the function unit. The holding part causes the toilet body and a side surface of the panel member to attract and hold to each other by using magnetic force. In a state where being attached to the toilet body, the panel member is formed to be curved toward the toilet body. The holding part is formed such that an attraction surface of a panel-side magnetic material that is provided to the panel member and an attraction surface of a body-side magnetic material that is provided to the toilet body are formed in plane-shaped.

A device including a connecting piece implement, the connecting piece implement is configured to be operable for preventing jamming or malfunctioning of a toilet flushing mechanism, wherein the connecting piece implement enables a flush lever of the toilet flushing mechanism to open or close a flapper to allow or prevent water to flow from a water tank into a bowl of the toilet. The connecting piece implement comprises at least one flexible material that is configured to engage an attachment aperture of the flush lever and the chain coupled to the flapper. The flexible material having a first end portion and a second end portion. The connecting piece implement further comprises at least one locking element, the locking element including a first lock component disposed on the first end portion of the flexible material.

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 flush valve assembly, comprising a flush valve comprising a flush valve body extending from a flush valve inlet to a flush valve outlet; a flapper cover having a top face and a bottom face and a front and a back; and a flush actuator comprising a lift rod; wherein the bottom face of the flapper cover is configured to enclose the flush valve inlet; and wherein the lift rod is coupled to the top face of the flapper cover and is configured to lift the flapper cover to partially open the flush valve and to fully open the flush valve.

Various systems and methods are provided for electrically controlled flush applications. In one embodiment, an apparatus includes an activation assembly configured to initiate a flush of a flush assembly based upon a position of the activation assembly. The activation assembly includes a position sensor that senses a transition from a neutral position to a first position and a restraint mechanism that prevents a return to the neutral position for a predefined period of time corresponding to the flush duration. In another embodiment, a flush activation assembly includes an activation control box with a position sensor that provides an indication that a cable anchor has transitioned from a neutral position to a first position to initiate a flush of the flush assembly and a restraint mechanism that prevents the cable anchor from returning to the neutral position in response to the indication from the position sensor.