A vacuum wastewater device (100) having a wastewater collection container (102) in the form of a vacuum toilet, a vacuum wastewater fitting (202), a wastewater valve (204), which is connected between the wastewater collection container (102) and the vacuum wastewater fitting (202); at least one electrical final control element (206a, 206b, 208), which is configured to change an actual state of the vacuum wastewater device (100), and a control unit (106), which is configured to receive a message (902) according to a network communication protocol, wherein the message (902) includes a specification on a target state; and to activate the at least one electrical final control element (206a, 206b, 208) according to the target state.

The present invention discloses an electronic flush valve system for tankless water fixtures, comprising a valve housing and a replaceable flush valve module removably secured within the valve housing. The flush valve module is comprised of an independent, self-contained flush valve configured as a replaceable flush valve cartridge.

The present invention discloses an electronic flush valve system for tankless water fixtures, comprising a valve housing and a replaceable flush valve module removably secured within the valve housing. The flush valve module is comprised of an independent, self-contained flush valve configured as a replaceable flush valve cartridge.

A flush toilet includes a rear storage configured to store a control unit of a toilet main body. The rear storage includes a supporting wall configured to support the control unit so as to divide a storage region of the rear storage into upper and lower regions. In a rear supporting region of the rear storage, a first distance in a horizontal left-right direction from an outer joining portion to an inner joining portion in the supporting wall is shorter than a second distance in the horizontal left-right direction from an outer wall in the double wall of the skirt to an inner joining portion of the supporting wall. The second distance is set to a maximum width dimension in the left-right direction in an internal space of the double wall of the skirt.

A flush water tank apparatus capable of opening and closing a discharge valve without the use of an external power source. A flush water tank apparatus includes a reservoir tank having a discharge opening; a discharge valve which opens and closes to supply and shut off the supply of flush water to the flush toilet; a discharge valve hydraulic drive portion, which uses the supply pressure of supplied municipal water to drive the discharge valve; an electric generator for generating electrical power using the flow of supplied municipal water; an electromagnetic valve operated by electrical power generated by the generator; and a water supply control device for controlling the supply of water to the discharge valve hydraulic drive portion based on the operation of the electromagnetic valve, and for controlling the supply of water to the reservoir tank.

A water supply mechanism includes a switching part that executes switching between water supply and water shut-off, a manual operation valve on the switching part that is capable of a manual operation thereof, and a pushing member that pushes the manual operation valve to provide a valve-closed state. The manual operation valve is pulled in a direction opposite to a pushing direction of the pushing member to provide a valve-opened state. The manual operation valve includes a plunger, an external cylinder member that encloses the plunger, a first engaging point in the external cylinder member, and a fixation part in the external cylinder member that fixes the plunger in the valve-closed state or the valve-opened state. The plunger moves beyond the first engaging point as the manual operation valve is pulled, and is fixed in the valve-opened state as a pull of the manual operation valve is released.

A water supply mechanism includes a switching part that executes switching between water supply and water shut-off, a manual operation valve on the switching part that is capable of a manual operation thereof, and a pushing member that pushes the manual operation valve to provide a valve-closed state. The manual operation valve is pulled in a direction opposite to a pushing direction of the pushing member to provide a valve-opened state. The manual operation valve includes a plunger, an external cylinder member that encloses the plunger, a first engaging point in the external cylinder member, and a fixation part in the external cylinder member that fixes the plunger in the valve-closed state or the valve-opened state. The plunger moves beyond the first engaging point as the manual operation valve is pulled, and is fixed in the valve-opened state as a pull of the manual operation valve is released.

A control method and device for a smart seated toilet. The method comprises: by acquiring function usage limitation information of a pre-set function provided by the smart seated toilet, judging whether the function usage limitation information satisfies conditions for allowing a user to use; if so, unlocking the pre-set function; and if not, then locking the pre-set function. By verifying the usage of a smart seated toilet, usage limitations of different functions of the smart seated toilet are realized, and convenience for users is improved.

A control method and device for a smart seated toilet. The method comprises: by acquiring function usage limitation information of a pre-set function provided by the smart seated toilet, judging whether the function usage limitation information satisfies conditions for allowing a user to use; if so, unlocking the pre-set function; and if not, then locking the pre-set function. By verifying the usage of a smart seated toilet, usage limitations of different functions of the smart seated toilet are realized, and convenience for users is improved.

A drinking water supply system includes a drinking water line system, a plurality of drinking water withdrawal points connected to the drinking water line system, at least one sensor which is designed to determine measuring values, and a central control device which is designed to receive and evaluate the measuring values determined by the at least one sensor. The system also includes a presence detector designed to determine information about the presence of a person, or an acoustic sensor designed to measure measuring values for the volume. The central control device is designed to control the drinking water supply system as a function of the information about the presence of a person or as a function of the measured values for the volume. A method for controlling such a drinking water supply system and a computer program that causes the method to be carried out are also provided.