| 摘要 |
The disclosed contents relate to a urea water storage device. The urea water storage device comprises: a tank body for storing urea water; an injection tube penetratingly provided to the upper part of the tank body, wherein an upper end positioned outside the tank body has an injection port formed thereon and a lower end extends at a predetermined distance downwards inside the tank body; an air vent hose provided to penetrate the upper part of the tank body so as to ventilate the inner and outer parts of the tank body, wherein the upper end thereof is installed to be extended to adjoin the injection port; a shutter installed on the injection port to close and open the hole of the upper end of the air vent hose adjacent to the injection port; and a cap inserted into the end of the injection port to open or close the injection port by a forward rotation or a reverse rotation, wherein the hole is closed by the shutter when the injection port is opened, and the hole is opened by moving the shutter for closing the hole when the injection port is closed. Therefore, when the lower end of the injection port disposed in the tank body is submerged under the injected urea water in a closed state of the air vent hose upon an injection of the urea water, the injection of the urea water can be stopped while the urea water fills the tank body through the injection tube after a constant available space is secured in the tank body, thereby preventing the urea water from being excessively injected. |
