A drain pipe structure configured for a basin, comprising a drain pipe body for water drainage, at least one connecting seat, and at least one mounting seat. The at least one connecting seat is configured to be connected to the drain pipe body to be fixed relative to an axial direction of the drain pipe body and at least one of rotation direction about an axis of the drain pipe body. The at least one connecting seat comprises a first connecting member, and the at least one mounting seat comprises a second connecting member. The first connecting member is configured to be operatively coupled to the second connecting member to enable the at least one mounting seat to operatively move along the axial direction of the drain pipe body to be fixed to a predetermined position of the at least one connecting seat along the axial direction.

A drain pipe structure configured for a basin, comprising a drain pipe body for water drainage, at least one connecting seat, and at least one mounting seat. The at least one connecting seat is configured to be connected to the drain pipe body to be fixed relative to an axial direction of the drain pipe body and at least one of rotation direction about an axis of the drain pipe body. The at least one connecting seat comprises a first connecting member, and the at least one mounting seat comprises a second connecting member. The first connecting member is configured to be operatively coupled to the second connecting member to enable the at least one mounting seat to operatively move along the axial direction of the drain pipe body to be fixed to a predetermined position of the at least one connecting seat along the axial direction.

A drainage assembly and a sink are provided. The drainage assembly includes a base body. Two ends of the base body are provided with an input port and an output port respectively. The input port is communicated with the output port by a flow channel located in the base body. The flow channel includes an upper chamber communicated with the input port and a lower chamber communicated with the output port. The base body is provided with a switch mechanism configured to control connection and disconnection between the upper chamber and the lower chamber. The base body is provided with a water inlet connector and a liquid level measurement connector that are separately communicated with the upper chamber. The drainage assembly and the sink have liquid level measurement and water supply functions in addition to a drainage function.

A drain system for controlling a water level in a bathtub includes a drain exit assembly coupled to an exit drain of the bathtub and configured to receive water exiting the bathtub, a valve fluidly coupled to the drain exit assembly and operably coupled to a motor, and a pressure sensor communicatively coupled to the valve and in fluid communication with the drain exit assembly. The motor is configured to change the operational state of the valve based on a pressure sensed by the pressure sensor to control a water level within the bathtub.

A drain system for controlling a water level in a bathtub includes a drain exit assembly coupled to an exit drain of the bathtub and configured to receive water exiting the bathtub, a valve fluidly coupled to the drain exit assembly and operably coupled to a motor, and a pressure sensor communicatively coupled to the valve and in fluid communication with the drain exit assembly. The motor is configured to change the operational state of the valve based on a pressure sensed by the pressure sensor to control a water level within the bathtub.

An intelligent drainage device includes a power supply unit, a water discharge key, drain assemblies, a motor drive unit and a control unit. The drain assembly, installed to a bathtub drain hole, includes a waterstop member, a stepping motor and a receiving tube. The receiving tube engages fixedly and oppositely the waterstop member and a power transmission shaft of the stepping motor. The control unit receives a start/stop signal from the water discharge key, then transmits the signal to the motor drive unit for controlling the power transmission shaft to drive the corresponding waterstop member to move upward or downward. In this device, with a simple touch at the water discharge key, the control unit would control the motor drive unit to activate the stepping motors so as to have all the drain assemblies at the respective drain holes to discharge simultaneously and rapidly the water inside a bathtub.

A drain stopper apparatus is disclosed and configured for being installed within a drain hole of a fixture, for preventing any buildup of hair or other materials within an associated drainpipe of the fixture. In at least one embodiment, the apparatus provides a stopper body sized and shaped for being positioned within the drain hole of the fixture, in contact with an inner surface of a basin of the fixture. A stopper tailpiece is engaged with a bottom of the stopper body. A stopper is positioned within the stopper body and configured for selectively moving between one of an open position and a closed position. A drive coupler interconnects a lower end of the stopper tailpiece with an upper end of the drainpipe, the drive coupler providing a drive mechanism positioned and configured for selectively actuating the stopper between the open and closed positions.

A portable hand-washing station having a base, at least one sink thereabove, a grey-water storage tank in the base, and a suction tube extending from an inlet end thereof within the grey-water storage tank upwardly and from there downwardly to an outlet end thereof at a bottom portion of the base, the suction tube having a check valve in it which has a cracking pressure sufficient to prevent flow from the grey-water storage tank through the suction tube without application of suction at the outlet to overcome the cracking pressure.

A portable hand-washing station having a base, at least one sink thereabove, a grey-water storage tank in the base, and a suction tube extending from an inlet end thereof within the grey-water storage tank upwardly and from there downwardly to an outlet end thereof at a bottom portion of the base, the suction tube having a check valve in it which has a cracking pressure sufficient to prevent flow from the grey-water storage tank through the suction tube without application of suction at the outlet to overcome the cracking pressure.

A stopper cartridge for a drain system of a fluid basin, components thereof and related methods are provided. The stopper cartridge includes a stopper head and a strainer to strain fluid passing through the drain system when the stopper head is in a drain position. The stopper head and the strainer may be selectively removable from the drain system by manipulating the stopper head relative to the drain system or a component installed in the drain system.