| 摘要 |
A safe pressure-release device for household pressure cooker has a pressure-release place which is provided with a joint hole on a cooker cover. A pressure-release seal-chip is sealed on the joint hole. The pressure-release seal-chip can be riveted on the cooker cover. One end of the pressure-release seal-chip can also be riveted together with the cooker cover, and the other end of it can be made up into the piston, so as to seal the joint hole. When the pressure inside the cooker is within the normal pressure, the pressure-release seal-chip seals the joint hole. When the pressure inside the cooker is too high, either the pressure-release seal-chip is broken down, or the piston is sprung, so the pressure is released from the joint hole. |
