Easy-to-clean sewer pipe connecting pipe assembly

1 . A sewer pipe connecting pipe assembly, comprising a telescopic pipe, wherein one end of the telescopic pipe is connected to a bottom connecting shell;

another end of the telescopic pipe is connected to a transparent pipe, and an outer end of the transparent pipe is detachably connected to a top connecting shell; an outer wall of the transparent pipe is integrally formed with a first external thread, and a tail end of the transparent pipe is spirally connected to the telescopic pipe via the first external thread; an inner cavity of the transparent pipe is installed with a grid plate;

the inner cavity of the transparent pipe is integrally formed with a step, and the grid plate is placed on the step.

2 . The sewer pipe connecting pipe assembly of claim 1 , wherein walls of the inner cavity of the transparent pipe are fixed with clamping blocks; a bottom of the top connecting shell is integrally formed with a connecting pipe, and outer walls of the connecting pipe are provided with a clamping groove and clamping block mate with each other.

3 . The sewer pipe connecting pipe assembly of claim 1 , wherein a top of the bottom connecting shell is integrally formed with a round pipe, an outer wall of the round pipe is fixed with a second external thread, and the second external thread is spirally connected to a tail end of the telescopic pipe.

4 . The sewer pipe connecting pipe assembly of claim 1 , wherein walls of the top connecting shell are provided with connecting holes.

5 . The sewer pipe connecting pipe assembly of claim 1 , wherein one side of both end faces of the telescopic pipe is provided with a notch.