Device for preventing leakage from water purifier

Abstract

Disclosed is a device which prevents leakage by automatically shutting off flow of incoming tap water using a plunger as a check valve when a compressed pulp body expands due to fluid leaking from a water purifier or under a sink. The water leakage prevention device according to one embodiment of the present invention is installed in the flow path of running tap water to a water purifier, and comprises: a running water inlet connected to the water supply source; a running water outlet connected to the water purifier; an upper casing unit having a channel connecting the running water inlet to the running water outlet; a lower casing unit attached to the bottom of the upper casing unit and having a compressed body which expands with absorption of water leaking from the water purifier via the lower casing unit; and a plunger check valve which alternatively opens and closes the running water channel and prevents discharge of water through the running water outlet by closing said channel when absorption of leakage expands said compressed body.

1 . A device for preventing leakage from a water purifier that is installed in a flow path for supplying running water from a running water supply source to the water purifier, comprising:
 an upper casing unit including a running water inlet that communicates with the running water supply source, a running water outlet that communicates with the water purifier, and a running water channel that makes the running water inlet and the running water outlet communicate with each other;   a lower casing unit fixed to a bottom surface of the upper casing unit and having a built-in compressed body of which the volume is expanded when the compressed body absorbs leakage water that leaks from the water purifier and flows into the lower casing unit through the bottom of the upper casing unit; and   a plunger for a check valve movably engaged with the running water channel so as to open or close the running water channel, and intercepting the running water that is discharged through the running water output port by closing the running water channel when the volume of the compressed body is expanded due to absorption of the leakage water.   
     
     
         2 . The device for preventing leakage according to  claim 1 , wherein any one of a compressed pulp body, sponge paper, non-woven fabric, and rayon is used as the compressed body. 
     
     
         3 . The device for preventing leakage according to  claim 2 , wherein the compressed body has a projection formed on a bottom surface thereof and exposed from a bottom surface of the lower casing unit so as to minimize an absorption time of the leakage water that is in contact with the compressed body. 
     
     
         4 . The device for preventing leakage according to  claim 3 , further comprising a support plate fixed to a lower end of the plunger for the check valve to push up the plunger when the compressed body is expanded. 
     
     
         5 . The device for preventing leakage according to  claim 4 , further comprising an elastic member elastically supporting the plunger for the check value in a direction opposite to a direction in which the running water channel is closed. 
     
     
         6 . The device for preventing leakage according to  claim 5 , further comprising a magnetic body fixed to the bottom surface of the lower casing unit so that the lower casing unit can be detachably fixed to the bottom plate of a structure on which the water purifier is installed. 
     
     
         7 . The device for preventing leakage according to  claim 5 , further comprising a both-side tape fixed to the bottom surface of the lower casing unit so that the lower casing unit can be detachably fixed to the bottom plate of a structure on which the water purifier is installed. 
     
     
         8 . The device for preventing leakage according to  claim 5 , further comprising a screw fixed to the bottom surface of the lower casing unit so that the lower casing unit can be detachably fixed to the bottom plate of a structure on which the water purifier is installed. 
     
     
         9 . The device for preventing leakage according to  claim 1 , wherein at least one of the upper casing unit and the lower casing unit is formed of a transparent material. 
     
     
         10 . The device for preventing leakage according to  claim 2 , wherein at least one of the upper casing unit and the lower casing unit is formed of a transparent material. 
     
     
         11 . The device for preventing leakage according to  claim 3 , wherein at least one of the upper casing unit and the lower casing unit is formed of a transparent material. 
     
     
         12 . The device for preventing leakage according to  claim 4 , wherein at least one of the upper casing unit and the lower casing unit is formed of a transparent material. 
     
     
         13 . The device for preventing leakage according to  claim 5 , wherein at least one of the upper casing unit and the lower casing unit is formed of a transparent material. 
     
     
         14 . The device for preventing leakage according to  claim 6 , wherein at least one of the upper casing unit and the lower casing unit is formed of a transparent material. 
     
     
         15 . The device for preventing leakage according to  claim 7 , wherein at least one of the upper casing unit and the lower casing unit is formed of a transparent material. 
     
     
         16 . The device for preventing leakage according to  claim 8 , wherein at least one of the upper casing unit and the lower casing unit is formed of a transparent material.