| 摘要 |
PURPOSE: A pressure rice cooker having a lid rotation locking unit is provided to prevent rotation of a lid because multiple insertion grooves and protrusions are mechanically fixed and a body and a lid are sealed by a silicon packing in a state where steam pressure remains in the body. CONSTITUTION: A pressure rice cooker having a lid rotation locking unit comprises multiple insertion grooves(17) and multiple protrusions(15). The multiple insertion grooves are formed on the top of a body(10) in predetermined gap. The multiple protrusions are formed underside of a silicon packing(20) corresponding to the insertion grooves in predetermined gap. The insertion grooves and protrusions are formed in a vertical direction with respect to rotation direction of a lid or an inclined direction with predetermined angle. In case, steam pressure remains in the body and the protrusions of the silicon packing are inserted into the insertion grooves, the protrusions are hung on the insertion grooves to fix, thereby the lid cannot rotate even if users forcibly rotate. |
