发明名称 |
Check Valve for Vacuum Container and Vacuum Container Lid using Same |
摘要 |
Disclosed is a check valve which has an excellent sealing force compared with a conventional one by applying a relatively small force which lifts the edge of a valve body part even with a vacuum indicating part being sunk, and which can maintain a vacuum state for a longer time by preventing a ring shape from being dented at a low or high vacuum level. The check valve has features including: a valve body part which is made of an elastic material, is provided with a concave part for providing on the bottom surface thereof an empty space higher than the edge thereof, and has a through-hole vertically formed therein; a vacuum indicating part which is connected integrally to the valve body part along the inner wall surface of the through-hole at a position spaced downwardly from the top of the through-hole, is formed to be thinner than the thickness of the valve body part and protrude upwardly, and sinks toward a lid when negative pressure is generated in the space between the lid and the valve body part; and a fixing part which is coupled to a valve coupling part so as to fix the valve body part to the valve coupling part. |
申请公布号 |
US2016003365(A1) |
申请公布日期 |
2016.01.07 |
申请号 |
US201414769464 |
申请日期 |
2014.02.19 |
申请人 |
BORU INTERNATIONAL CO., LTD. |
发明人 |
PARK Sou Kyu |
分类号 |
F16K15/14;B65D51/24;B65D51/16;F16K24/04;B65D25/28 |
主分类号 |
F16K15/14 |
代理机构 |
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代理人 |
|
主权项 |
1. A check valve for engaging a lid having through-hole and valve coupling part and controlling air flow through the through-hole, the check valve comprising:
a valve body part which is made of an elastic material, is provided with a concave part for providing on the bottom surface thereof an empty space higher than the edge thereof, and has a through-hole vertically formed therein; a vacuum indicating part which is connected integrally to the valve body part along the inner wall surface of the through-hole at a position spaced downwardly from the top of the through-hole, is formed to be thinner than the thickness of the valve body part and protrude upwardly, and sinks toward a lid when negative pressure is generated in the space between the lid and the valve body part; and a fixing part which is coupled to a valve coupling part so as to fix the valve body part to the valve coupling part. |
地址 |
Gyeonggi-do KR |