Quick-assembly deodorant drainer for washbasin

Abstract

A quick-assembly deodorant drainer for washbasin, includes a drainer body having a mounting portion, a connecting portion and a sewer pipe. The mounting portion is mounted in a water outlet of the washbasin and extends downward, the connecting portion is mounted at a lower end of the mounting portion, and the connecting portion includes a deodorant anti-overflow device. The deodorant anti-overflow device includes a cylinder and a sealing cover, the upper end of the cylinder is open and a water-flow hole is disposed at the lower end thereof, and a cylindrical convex portion is disposed at an inner bottom portion of the cylinder and extends upwardly. The convex portion has a through hole, and the sealing cover is disposed at the bottom of the cylinder through a fixed shaft connected to the sealing cover. The upper end of the fixed shaft has a sleeve sleeved over the convex portion.

What is claimed is: 
     
         1 . A quick-assembly deodorant drainer for washbasin, comprising:
 a drainer body;   wherein, the drainer body comprises a mounting portion, a connecting portion and a sewer pipe;   the mounting portion is mounted in a water outlet of the washbasin and extends downward;   the connecting portion is mounted at a lower end of the mounting portion, and the connecting portion is provided with a deodorant anti-overflow device;   the deodorant anti-overflow device comprises a cylinder and a sealing cover, the upper end of the cylinder is open and a water-flow hole is disposed at a lower end of the cylinder, 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 through a fixed shaft connected to the sealing cover and closes the water-flow hole;   an upper end of the fixed shaft is provided with a sleeve, the sleeve is sleeved over the convex portion, and an outer side wall of the convex portion is provided with a compression spring;   the sewer pipe is connected to a lower end of the connecting portion, the sewer pipe is shaped as a cylindrical straight pipe, and the sewer pipe is provided with at least one bending portion.   
     
     
         2 . The quick-assembly deodorant drainer for washbasin according to  claim 1 , wherein an outer side wall of the lower end of the mounting portion is provided with a first external thread, an inner side wall of an upper end of the connecting portion is provided with a first internal thread, the first internal thread mates with the first external thread, and the lower end of the mounting portion and the upper end of the connecting portion are connected through the first external thread and the first internal thread. 
     
     
         3 . The quick-assembly deodorant drainer for washbasin according to  claim 2 , wherein the lower end of the mounting portion is provided with a first connection sealing nut, and the first connection sealing nut seals a position where the lower end of the mounting portion is coupled with the upper end of the connecting portion. 
     
     
         4 . The quick-assembly deodorant drainer for washbasin according to  claim 1 , wherein the convex portion is integrally formed with the cylinder, and a top end of the convex portion is located below a top end of the cylinder. 
     
     
         5 . The quick-assembly deodorant drainer for washbasin according to  claim 1 , wherein the sealing cover is integrally formed with the fixed shaft, the sealing cover is mated with the lower end opening of the cylinder in a sealing manner, and the upper end of the fixed shaft is threadedly connected with a fixed portion disposed at an inner top portion of the sleeve. 
     
     
         6 . The quick-assembly deodorant drainer for washbasin according to  claim 5 , wherein an outer diameter of the fixed shaft is smaller than an inner diameter of the through hole in the convex portion, and the fixed shaft is configured to move up and down along the through hole of the convex portion. 
     
     
         7 . The quick-assembly deodorant drainer for washbasin according to  claim 6 , wherein an outer diameter of the convex portion is smaller than an inner diameter of the sleeve, and at a same time when the fixed shaft moves up and down along the through hole of the convex portion, the sleeve is configured to move up and down along the convex portion. 
     
     
         8 . The quick-assembly deodorant drainer for washbasin according to  claim 1 , wherein the lower end of the connecting portion is provided with a second connection sealing nut, and the second connection sealing nut seals a connection position of the connecting portion and the sewer pipe.