Washing machine having a filtering drain pump

Abstract

A washing machine having a drain pump, which filters out impurities contained in water supplied to a drain casing, and conveniently removes the impurities. The drain pump includes a drain casing provided with an inlet and an outlet to supply and discharge the water, and a plurality of filtering pins filter impurities contained in the water; and a drain filter provided with through holes defined therein, into which the plurality of filtering pins are respectively connected.

1 . A washing machine, comprising:
 a drain pump draining water, said drain pump comprising:
 a drain casing provided with an inlet and an outlet to supply and discharge the water, and a plurality of filtering pins to filter impurities contained in the water, and 
 a drain filter provided with through holes defined therein, into which the plurality of filtering pins are respectively connected. 
   
   
   
       2 . The washing machine according to  claim 1 , wherein the through holes comprise a plurality of pin holes into which the plurality of filtering pins are respectively inserted, and a plurality of collection holes filtering out the impurities in the water. 
   
   
       3 . The washing machine according to  claim 2 , wherein the plurality of filtering pins are installed at a designated tilt angle with respect to a flow direction of the water supplied to the inlet of the drain casing. 
   
   
       4 . The washing machine according to  claim 1 , wherein the drain filter comprises a filter body portion filtering out the impurities in the water, a head connected to the filter body portion of the drain filter facilitating insertion and removal of the drain filter into and out of the drain casing, and connection members connecting the filter body portion and the head. 
   
   
       5 . The washing machine according to  claim 4 , wherein a level portion is formed at an end of the filter body portion and a guide protrusion is formed on a wall of the drain casing such that the drain filter is correctly positioned within the drain casing when the drain filter is inserted into the drain casing. 
   
   
       6 . The washing machine according to  claim 4 , wherein the connection members are separated from each other by a distance so that the impurities are removed. 
   
   
       7 . The washing machine according to  claim 4 , wherein the impurities filtered out by the filtering pins are elevated by the filter body when the drain filter is separated from the drain casing. 
   
   
       8 . A washing machine, comprising:
 a drain pump for draining water, said drain pump comprising:
 a drain casing provided with an inlet and an outlet to supply and discharge the water; 
 a drain filter installed in the drain casing and provided with through holes defined therein; 
 a filtering plate; and 
 a plurality of filtering pins attached to the filtering plate, which are respectively inserted into the through holes of the drain filter. 
   
   
   
       9 . The washing machine according to  claim 8 , wherein the through holes comprise a plurality of pin holes, into which the plurality of filtering pins are respectively inserted so the plurality of filtering pins protrude from the pin holes by a designated length, and a plurality of collection holes to filter impurities in the water. 
   
   
       10 . The washing machine according to  claim 9 , wherein the plurality of filtering pins are installed at a designated tilt angle with respect to the flow direction of the water supplied to the inlet. 
   
   
       11 . The washing machine according to  claim 8 , wherein the drain filter comprises a filter body provided with the through holes, a head connected to the filter body facilitating insertion and removal of the drain filter into and out of the drain casing, and connection members connecting the filter body and the head. 
   
   
       12 . The washing machine according to  claim 11 , wherein a level portion and a guide protrusion are individually formed on the filter body and the drain casing to position the drain filter in the drain casing. 
   
   
       13 . The washing machine according to  claim 11 , wherein the plurality of connection members are separated from each other by a distance so that the impurities are removed by a user. 
   
   
       14 . The washing machine according to  claim 11 , wherein the impurities filtered out by the filtering pins are elevated by the filter body when the drain filter is separated from the filtering plate. 
   
   
       15 . The washing machine according to  claim 8 , wherein the drain pump further comprises filtering plate connectors connecting the drain filter and the filtering plate. 
   
   
       16 . The washing machine according to  claim 8 , wherein the filtering plate is fixedly installed in the drain casing. 
   
   
       17 . A drain pump, comprising:
 a drain filter filtering impurities contained in water;   a drain casing, in which the drain filter is installed; and   a plurality of filtering pins attached to the drain casing to filter impurities in the water.   
   
   
       18 . The drain pump according to  claim 17 , wherein the drain filter is provided with through holes into which the plurality of filtering pins are respectively selectively inserted. 
   
   
       19 . The drain pump according to  claim 18 , wherein the through holes comprise a plurality of pin holes, into which the plurality of filtering pins are respectively inserted so the plurality of filtering pins protrude from the pin holes by a designated length, and a plurality of collection holes filter impurities in the water. 
   
   
       20 . A drain pump, comprising:
 a drain filter to filter impurities contained in water provided to the drain pump;   a drain casing, into which the drain filter is installed;   a filtering plate connected to the drain filter; and   a plurality of filtering pins affixed to the filtering plate to filter impurities in the water.   
   
   
       21 . The drain pump according to  claim 20 , wherein the drain filter has through holes defined therein into which the filtering pins are inserted. 
   
   
       22 . A drain filter, comprising:
 a filter body portion having through holes defined therein;   a filtering plate connected to the filter body portion; and   a plurality of filtering pins affixed to the filtering plate to filter impurities and insertable within the through holes of the filter body portion.   
   
   
       23 . The drain filter according to  claim 22 , further comprising flexible filtering plate connectors connecting the filter body portion to the filtering plate.