Floor Drain Cover That Can Prevent Waste Water From Flowing Backward in a Floor Drain

Abstract

A floor drain cover includes a draining frame, a net-shaped disk mounted in the top wall of the draining frame, a fixing bracket mounted on the draining frame, a movable lid pivotally mounted on the fixing bracket and movable relative to the draining frame, and a rubber pad mounted on the movable lid and movable to seal the bottom wall of the draining frame. Thus, when the ambient waste water in the floor drain flows toward the draining frame, the movable lid is pressed by the pressure of the ambient waste water so that the movable lid moves the rubber pad to seal the bottom wall of the draining frame, thereby preventing the ambient waste water in the floor drain from flowing backward, and preventing the floor from being contaminated by the ambient waste water.

1 . A floor drain cover, comprising:
 a draining frame having an open top wall and an open bottom wall;   a net-shaped disk mounted in the top wall of the draining frame;   a fixing bracket mounted on the draining frame;   a movable lid pivotally mounted on the fixing bracket and movable relative to the draining frame;   a rubber pad mounted on the movable lid to move in concert with the movable lid and movable to abut and seal the bottom wall of the draining frame.   
     
     
         2 . The floor drain cover of  claim 1 , wherein the movable lid has a periphery provided with a pivot bracket pivotally mounted on the fixing bracket by a pivot pin. 
     
     
         3 . The floor drain cover of  claim 2 , wherein the floor drain cover further comprises:
 an elastic member mounted on the pivot pin and having a distal end formed with an extension pressing a top face of the movable lid.   
     
     
         4 . The floor drain cover of  claim 3 , wherein the elastic member is received in the fixing bracket. 
     
     
         5 . The floor drain cover of  claim 1 , wherein the rubber pad is disposed between the movable lid and the bottom wall of the draining frame. 
     
     
         6 . The floor drain cover of  claim 5 , wherein the rubber pad has a bottom face abutting a top face of the movable lid and a top face that is movable to abut and seal the bottom wall of the draining frame. 
     
     
         7 . The floor drain cover of  claim 1 , wherein the fixing bracket is located outside of the draining frame. 
     
     
         8 . The floor drain cover of  claim 1 , wherein the fixing bracket is mounted on a periphery of the bottom wall of the draining frame. 
     
     
         9 . The floor drain cover of  claim 1 , wherein
 the draining frame is mounted on and extended into a floor drain of a floor;   the draining frame has a periphery provided with two opposite fixing pieces secured to the floor.   
     
     
         10 . The floor drain cover of  claim 9 , wherein the movable lid is received in the floor drain. 
     
     
         11 . The floor drain cover of  claim 1 , wherein the movable lid is located under the bottom wall of the draining frame. 
     
     
         12 . The floor drain cover of  claim 2 , wherein the pivot pin extends through the pivot bracket of the movable lid and the fixing bracket. 
     
     
         13 . The floor drain cover of  claim 1 , wherein
 the movable lid has a central portion formed with a through hole;   the rubber pad has a central portion formed with a fixing hole; and   the floor drain cover further comprises a fastening member extended through the through hole of the movable lid and the fixing hole of the rubber pad to attach the rubber pad to the movable lid.   
     
     
         14 . The floor drain cover of  claim 1 , wherein the top wall of the draining frame has a size greater than that of the bottom wall of the draining frame. 
     
     
         15 . The floor drain cover of  claim 1 , wherein the draining frame has a funnel shape and has a mediate portion formed with a tapered guide surface disposed between the top wall and the bottom wall of the draining frame.