| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an airtight device mounted between a liquid pouring opening and a cap which is reversely inserted between the liquid pouring opening and the cap at the position of an oil supply pipe in a vessel to give an airtight effect for leakage prevention and impact resistance, enables the liquid in the vessel to be poured out after closing the cap by protruding the oil supply pipe from the cap during the use of the oil supply pipe, thus facilitates the installation operation of the oil supply pipe, and avoids a risk of liquid adhesion during the operation. <P>SOLUTION: In order to achieve the purpose, the oil supply pipe is located at the position between the oil pouring opening and the cap of the vessel, and has a protrusive margin the circumference of which an airtight element is fitted in. A hole through which the supply oil pipe can be taken out is mounted in the cap, and furthermore a shielding element capable of shielding the hole is mounted between the cap and the protrusive part of the oil supply pipe. <P>COPYRIGHT: (C)2008,JPO&INPIT |
