Toilet plunger

Abstract

A toilet plunger is used to unclog a drain of a toilet by removing impurities. The toilet plunger includes a gas container, with an opening thereof closed by a closing plate. A body has defined therein a passage extending in the lengthwise direction to allow gas to pass through and a gas container-receiving portion. A puncture pin is disposed in the central portion of the gas container-receiving portion. A cover has an inner space for receiving a portion of the gas container opposite the opening. The cover is screw-coupled to the upper portion of the body, such that the container is moved toward the puncture pin according to a screw motion. An insert is connected to the lower end of the body to guide the discharged gas along the passage toward the drain. A portion of the insert, which is intermediate in length, is bent in one direction.

What is claimed is: 
     
         1 . A toilet plunger that is used to unclog a drain of a toilet by removing impurities, the toilet plunger comprising:
 a gas container containing a predetermined amount of gas therein, with an opening thereof closed by a closing plate;   a body having defined therein a passage extending in a lengthwise direction to allow the gas to pass through and a gas container-receiving portion depressed to a predetermined depth from an upper end thereof to closely receive an opening side of the gas container;   a puncture pin disposed in a central portion of the gas container-receiving portion to puncture the closing plate so that the gas that is contained in the gas container is discharged toward the passage;   a cover having an inner space capable of receiving a portion of the gas container opposite the opening, wherein the cover is screw-coupled to an upper portion of the body to cover the upper portion of the body that is open, such that the container is moved toward the puncture pin according to a screw motion when a user rotates the cover; and   an insert connected to a lower end of the body to guide the gas that is discharged from the gas container along the passage toward the drain,   wherein the body has a pair of partitions therein, the partitions being spaced apart from each other at a predetermined interval, thereby forming a puncture pin-receiving portion, into which the puncture pin is disposed, and dividing the gas container-receiving portion and the passage from each other, and   wherein each of the partitions has a safety passage therein, the safety passage being formed around the puncture pin-receiving portion to connect the gas container-receiving portion to the passage in order to adjust pressure in the gas container-receiving portion.   
     
     
         2 . The toilet plunger of  claim 1 , further comprising a coupling ring, which surrounds an outer circumference of the puncture pin, wherein the coupling ring with the puncture pin coupled thereto is fitted into the puncture pin-receiving portion. 
     
     
         3 . The toilet plunger of  claim 1 , wherein the puncture pin has a through-passage in a central portion thereof, wherein the through-passage guides the gas that is discharged from the gas container toward the passage. 
     
     
         4 . The toilet plunger of  claim 1 , wherein the body further has a pressing member surrounding an outer surface thereof, wherein the pressing member presses the puncture pin-receiving portion. 
     
     
         5 . The toilet plunger of  claim 4 , wherein the pressing member has at least one anti-slip groove along an outer circumference in an outer surface thereof, the anti-slip groove depressed a predetermined depth. 
     
     
         6 . The toilet plunger of  claim 1 , wherein the insert has a close contact plate along an outer circumference in an upper portion thereof, wherein the close contact plate protrudes outwards a predetermined length, such that the close contact plate comes into close contact with surroundings of the drain when the insert is inserted into the drain. 
     
     
         7 . The toilet plunger of  claim 1 , wherein the gas is one selected from the group consisting of CO 2 , O 2 , and N 2 .