Sealing plug structure of toilet tank

Abstract

A sealing plug structure of a toilet tank includes a cover, an installation seat and a floating seat, wherein the installation seat is extended from a side of the cover, two supporting arms are set on the installation seat, a notch and a guide chute are set on each supporting arm, the notches are respectively set on two positioning columns of a flush pipe, the guide chutes are connected to a side of the floating seat, a leverage moment is generated by buoyancy force on the floating seat, to strengthen a pressing force for sealing up a drain opening with the sealing plug, to thereby improve leak-proof effect.

1 - 5 . (canceled) 
     
     
         6 . A sealing plug structure of a toilet tank, the sealing plug structure comprises:
 a cover;   an installation seat having two arms, each arm of the two arms has one guide chute of two guide chutes located at a first end of the arm and extending a predetermined length and a notch located at a middle portion of the arm and below the guide chute, the notch of each arm of the two arms is pivotally connected to a corresponding positioning column of two positioning columns of a flush pipe of the toilet tank and a second end of each said arm of the two arms is connected to the cover; and   a floating seat pivotally and slidably connected to the two guide chutes of the installation seat, the floating seat moves along the two guide chutes with as a water level in the toilet tank changes, the installation seat driven by the buoyancy force of the floating seat presses the cover against a drain opening of the toilet tank to seal the drain opening with the sealing plug.   
     
     
         7 . The sealing plug structure of the toilet tank as claimed in  claim 6 , wherein the cover includes a soft plate body. 
     
     
         8 . The sealing plug structure of the toilet tank as claimed in  claim 6 , wherein the cover has two shaft columns extending outwardly in opposite directions, a shaft hole is located on the second end of each said arm of the two arms, one shaft column of the two shaft columns of the cover is inserted into the shaft hole of a corresponding arm of the two arms of the installation seat. 
     
     
         9 . The sealing plug structure of the toilet tank as claimed in  claim 6 , wherein the floating seat has a seat body having a U-shaped cross section defining a concave space located therein, the flush pipe is located in the concave space of the floating seat. 
     
     
         10 . The sealing plug structure of the toilet tank as claimed in  claim 6 , wherein the floating seat has two stands extending outwardly from the floating seat, each stand of the two stands has a lug, the lug of each said stand of the two stands of the floating seat is pivotally and slidably inserted into the guide chute of a corresponding arm of the two arms of the installation seat.