Popup Installation Structure for a Sink and Installation Method

Abstract

The present invention relates to a popup installation structure for a sink and to an installation method. The popup installation structure installed in a sink is configured such that an upper protrusion that tightly contacts a drain hole of the sink is formed on a top of the structure, drainpipes are arranged at both left and right sides of an intermediate portion of the structure such that each drain pipe is opened in a transverse direction and has a drain space in communication with an overflow passage formed from a bottom surface of the sink, and a sewer pipe is arranged in a lower portion of the structure such that the sewer pipe is coupled to a drain trap arranged below the basin. The sink popup installation structure comprises: a tight contact member having a tight contact portion to be tightly fitted to a lower end of the stopper protrusion, the tight contact portion having a diameter corresponding to that of the stopper protrusion, an extended portion extending from a bottom surface of the tight contact portion into a diameter corresponding to the drain hole, and a corrugation formed at an outer surface of a lower end of the extended portion so as to prevent water leakage; and a sealing member fitted to a lower portion of the drainpipe, having a diameter corresponding to that of the drainpipe and having a plurality of corrugations at an outer surface thereof. The sink popup installation structure is forcedly fitted to the drain hole at the state where the tight contact member is tightly fitted to the lower end of the stopper protrusion and the sealing member is fitted to the lower portion of the drainpipe.

1 . An installation structure of a popup device for a sink, installed in the sink and having a latch jaw close contacting with a drain hole formed in the sink in an upper end portion and having a drainpipe having a drain space portion laterally bored at each of both sides of the left side and the right side of an intermediate portion and that communicates with an overflow passage installed at a bottom surface of the sink and in which a sewer pipe fastened to a drain trap installed in a lower portion of the sink is coupled in a lower portion, the installation structure comprising:
 a close contact member comprising a close contact portion inserted and coupled to close contact with the lower end of the latch jaw and formed in a diameter corresponding to the latch jaw, an extension portion extended to a diameter corresponding to a drain hole from a bottom surface of the close contact portion, and corrugations for blocking water leakage at an outer circumferential surface of the lower end of the extension portion; and   a sealing member inserted and coupled to a lower portion of the drainpipe and formed in a diameter corresponding to the drainpipe and having a plurality of corrugations at an outer circumferential surface,   wherein the close contact member is inserted and coupled to close contact with the lower end of the latch jaw, and in a state in which the sealing member is inserted and coupled to a lower portion of the drainpipe, the sealing member is forcedly inserted into the drain hole.   
     
     
         2 . The installation structure of  claim 1 , wherein the close contact member and the sealing member are integrally formed together with a connection portion disposed therebetween. 
     
     
         3 . The installation structure of  claim 2 , wherein in the connection portion, a drain groove is formed at a location corresponding to communicate with the drain space portion. 
     
     
         4 . A method of installing a popup device for a sink, installed in the sink and having a latch jaw close contacting with a drain hole formed in the sink in an upper end portion and having a drainpipe having a drain space portion laterally bored at each of both sides of the left side and the right side of an intermediate portion and that communicates with an overflow passage installed at a bottom surface of the sink and in which a sewer pipe fastened to a drain trap installed in a lower portion of the sink is coupled in a lower portion, the method comprising:
 coupling the sewer pipe and the drain trap installed in a lower portion of the sink;   locating the sewer pipe within the sink by pulling the sewer pipe to penetrate the drain hole formed in the sink;   inserting and coupling a close contact member comprising a close contact portion formed in a diameter corresponding to the latch jaw, an extension portion extended to a diameter corresponding to the drain hole from a bottom surface of the close contact portion, and corrugations for blocking water leakage at an outer circumferential surface of the lower end of the extension portion to the lower end of the latch jaw;   inserting and coupling a sealing member formed in a diameter corresponding to the drainpipe and having a plurality of corrugations at an outer circumferential surface to a lower portion of the drainpipe; and   coupling the drainpipe and the sewer pipe and forcedly inserting the coupled drainpipe and sewer pipe into the drain hole.