CERAMIC PRESSURE RICE COOKER COMPRISING AN UPPER EXTENSION UNIT, A CONCAVELY CURVED UNIT, A CONVEXLY CURVED UNIT, AND PLURAL HOLES

摘要

PURPOSE: A ceramic pressure rice cooker is provided to secure the predetermined pressure in a kettle and to prevent the water from flowing out of the rice cooker by inserting a heat resisting silicon rubber ring around the lower edge of a lid. CONSTITUTION: A ceramic pressure rice cooker is composed of a rice cooker body(1) and a lid(2). An inner horizontal rib(12) of which the width is 10¯15mm is disposed under an upper rib(11) of the rice cooker body at the gap of 10¯15 mm. An upper extension unit(21) of which the center is hollow is arranged on the center upper part of the lid at the height of 4¯10cm. A concavely curved unit is formed in the lid. A convexly curved unit is disposed at the inner center. Plural holes are formed on the convexly curved unit. A heat resisting silicon rubber ring is inserted around the lower edge of the lid.