Sink drain assembly with self-closing function

Abstract

The invention discloses a water tank drainage assembly with an automatic sealing function, which includes a filter basket and a housing. The lower end of the housing is connected with a drain pipe; The limit ring is threadedly connected, the outside of the drain pipe is set with a pressure sleeve, the pressure sleeve is threaded with the outer peripheral wall of the housing, and a second sealing ring is embedded between the upper end surface of the drain pipe and the lower end surface of the housing; The housing above the ring is provided with a support plate; the lower part of the support plate is provided with a pressure plate, and the middle part of the upper end surface of the pressure plate is integrally formed with a slide bar. Circlip, the outer sleeve of the slide bar between the support plate and the pressure plate is equipped with a second spring, and the edge of the lower end surface of the pressure plate is fitted with a third sealing ring; the inner side of the drain pipe is provided with a push rod; the internal drainage of the present invention When the pipe is separated from the shell, the shell can automatically realize the function of stopping drainage.

Description

technical field [0001] The invention relates to the technical field of a water tank drainage assembly, in particular to a water tank drainage assembly with an automatic sealing function. Background technique [0002] The sink drain assembly is an indispensable part of the sink. The current sink drain assembly mainly includes a filter basket and a shell. The bottom surface of the upper end of the body is fitted with a sealing ring for contacting the inner bottom of the water tank to seal the housing and the water tank, the lower end of the housing is connected with a drain pipe, and the upper end of the housing is provided with a cavity for accommodating a filter basket. After the water tank drainage assembly is assembled with the water tank, the sealing ring is pressed against the inner bottom of the water tank, and the pressure ring is pressed against the outer bottom of the water tank. However, during the draining process of the current sink drainage assembly, if there is...

AI Technical Summary

Problems solved by technology

However, during the draining process of the current sink drainage assembly, if there is an unexpected situation in which the drain pipe breaks away from the housing (because the current drain pipe is pressed tightly on the housing by a compression sleeve, and the compression sleeve and the housing are all made of plastic material It is easy to appear that the pressure sleeve is separated from the shell during the long-term use of the pressure sleeve and the shell. Once the pressure sleeve is detached from the shell, the drain pipe will appear to be detached from the shell). The discharged water will directly fall into the space below the sink, thereby polluting the space below the sink, so that the user needs to clean it up, which will cause inconvenience to the user

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