A quick-assembly deodorant drainer for washbasin. The deodorant drainer comprises a drainer body including a mounting portion mounted in a water outlet of the washbasin and extends downward, a connecting portion mounted at a lower end of the mounting portion and is provided with a deodorant anti-overflow device, and a sewer pipe connected to a lower end of the connecting portion, shaped as a cylindrical straight pipe, and is provided with at least one bending portion. Wherein, the deodorant anti-overflow device includes a cylinder and a sealing cover, an upper end of the cylinder is open and a water-flow hole is disposed at a lower end thereof, and a cylindrical convex portion is disposed at an inner bottom portion of the cylinder and extends upwardly; the convex portion is internally provided with a through hole, and the sealing cover is disposed at the bottom of the cylinder.

A quick-assembly deodorant drainer for washbasin. The deodorant drainer comprises a drainer body including a mounting portion mounted in a water outlet of the washbasin and extends downward, a connecting portion mounted at a lower end of the mounting portion and is provided with a deodorant anti-overflow device, and a sewer pipe connected to a lower end of the connecting portion, shaped as a cylindrical straight pipe, and is provided with at least one bending portion. Wherein, the deodorant anti-overflow device includes a cylinder and a sealing cover, an upper end of the cylinder is open and a water-flow hole is disposed at a lower end thereof, and a cylindrical convex portion is disposed at an inner bottom portion of the cylinder and extends upwardly; the convex portion is internally provided with a through hole, and the sealing cover is disposed at the bottom of the cylinder.

A drain coupler includes a drain coupler body having a lower opening and an upper opening. A pliable seal is carried by or adjacent the upper opening, the pliable seal operable to form a water-tight seal about an exterior of a metallic throat section of a drain. Coupler engagement structure is carried by the drain coupler adjacent the upper opening of the drain coupler body. Cap engagement structure is carried by a cap. The cap engagement structure and the coupler engagement structure cooperatively enable removable engagement of the cap over the upper opening of the drain coupler body to temporarily cover the upper opening of the drain coupler. The cap is removable to allow insertion of the metallic throat section in the pliable seal.

A drain coupler includes a drain coupler body having a lower opening and an upper opening. A pliable seal is carried by or adjacent the upper opening, the pliable seal operable to form a water-tight seal about an exterior of a metallic throat section of a drain. Coupler engagement structure is carried by the drain coupler adjacent the upper opening of the drain coupler body. Cap engagement structure is carried by a cap. The cap engagement structure and the coupler engagement structure cooperatively enable removable engagement of the cap over the upper opening of the drain coupler body to temporarily cover the upper opening of the drain coupler. The cap is removable to allow insertion of the metallic throat section in the pliable seal.

A drain pipe connector adapted to be disposed between a drain portal of a plumbing fixture and a sewage pipe. The drain pipe connector includes a first unidirectional valve adapted to be in fluid communication with the drain portal, and a drain trap in connected to the first unidirectional valve and adapted to be connected to the sewage pipe. The first unidirectional valve has a closed operative orientation, in which the first unidirectional valve forms a seal between the drain portal and the drain trap, and an open operative orientation which enables flow of fluid from the drain portal, via the first unidirectional valve, into the drain trap. The first unidirectional valve is normally closed, and when liquid drains into the first unidirectional valve, pressure applied by the liquid transitions the first unidirectional valve from the closed operative orientation to the open operative orientation, thereby enabling the liquid to flow into the drain trap.

A drain pipe connector adapted to be disposed between a drain portal of a plumbing fixture and a sewage pipe. The drain pipe connector includes a first unidirectional valve adapted to be in fluid communication with the drain portal, and a drain trap in connected to the first unidirectional valve and adapted to be connected to the sewage pipe. The first unidirectional valve has a closed operative orientation, in which the first unidirectional valve forms a seal between the drain portal and the drain trap, and an open operative orientation which enables flow of fluid from the drain portal, via the first unidirectional valve, into the drain trap. The first unidirectional valve is normally closed, and when liquid drains into the first unidirectional valve, pressure applied by the liquid transitions the first unidirectional valve from the closed operative orientation to the open operative orientation, thereby enabling the liquid to flow into the drain trap.

A quick-assembly deodorant drainer for washbasin. The deodorant drainer comprises a drainer body including a mounting portion mounted in a water outlet of the washbasin and extends downward, a connecting portion mounted at a lower end of the mounting portion and is provided with a deodorant anti-overflow device, and a sewer pipe connected to a lower end of the connecting portion, shaped as a cylindrical straight pipe, and is provided with at least one bending portion. Wherein, the deodorant anti-overflow device includes a cylinder and a sealing cover, an upper end of the cylinder is open and a water-flow hole is disposed at a lower end thereof, and a cylindrical convex portion is disposed at an inner bottom portion of the cylinder and extends upwardly; the convex portion is internally provided with a through hole, and the sealing cover is disposed at the bottom of the cylinder.

A quick-assembly deodorant drainer for washbasin. The deodorant drainer comprises a drainer body including a mounting portion mounted in a water outlet of the washbasin and extends downward, a connecting portion mounted at a lower end of the mounting portion and is provided with a deodorant anti-overflow device, and a sewer pipe connected to a lower end of the connecting portion, shaped as a cylindrical straight pipe, and is provided with at least one bending portion. Wherein, the deodorant anti-overflow device includes a cylinder and a sealing cover, an upper end of the cylinder is open and a water-flow hole is disposed at a lower end thereof, and a cylindrical convex portion is disposed at an inner bottom portion of the cylinder and extends upwardly; the convex portion is internally provided with a through hole, and the sealing cover is disposed at the bottom of the cylinder.

A waterless urinal cartridge, for waterless urinals, includes a housing and a cover. The housing includes a waste reservoir configured to hold a predetermined volume of wastewater, and a drainage aperture configured so that an amount of wastewater exceeding the predetermined volume of wastewater flows through the drainage aperture to exit the housing. The cover is coupled to the housing and includes a sealing fluid reservoir having walls that define the waste reservoir and the drainage aperture, the walls of the sealing fluid reservoir form a containment perimeter with an open bottom so as to contain a sealing fluid floating on top of the predetermined volume of wastewater, and a plurality of fluid passages direct wastewater from the fluid bowl to the sealing fluid reservoir. The waste reservoir includes a fluid flow control feature that restrains wastewater movement within the waste reservoir in response to a change in vehicle dynamics.

A waterless urinal cartridge, for waterless urinals, includes a housing and a cover. The housing includes a waste reservoir configured to hold a predetermined volume of wastewater, and a drainage aperture configured so that an amount of wastewater exceeding the predetermined volume of wastewater flows through the drainage aperture to exit the housing. The cover is coupled to the housing and includes a sealing fluid reservoir having walls that define the waste reservoir and the drainage aperture, the walls of the sealing fluid reservoir form a containment perimeter with an open bottom so as to contain a sealing fluid floating on top of the predetermined volume of wastewater, and a plurality of fluid passages direct wastewater from the fluid bowl to the sealing fluid reservoir. The waste reservoir includes a fluid flow control feature that restrains wastewater movement within the waste reservoir in response to a change in vehicle dynamics.