CN2143937Y - 压力锅气压补充胀力密封圈 - Google Patents
压力锅气压补充胀力密封圈 Download PDFInfo
- Publication number
- CN2143937Y CN2143937Y CN 92235369 CN92235369U CN2143937Y CN 2143937 Y CN2143937 Y CN 2143937Y CN 92235369 CN92235369 CN 92235369 CN 92235369 U CN92235369 U CN 92235369U CN 2143937 Y CN2143937 Y CN 2143937Y
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- Prior art keywords
- pressure
- sealing ring
- air
- flexible pipe
- expansive force
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
一种压力锅气压补充胀力密封圈,其特征是在橡
胶圈内槽加入一个与之配合的非封闭的软管。本实
用新型通过锅内气压凭借橡胶圈内的软管补充胀力,
因此在橡胶圈老化的情况下仍可使用,使密封圈的寿
命延长。
Description
本实用新型涉及一种压力锅密封圈。
现有压力锅密封圈是利用密封圈材料本身的胀力产生密封效果,由于材料老化,便失去胀力,使之失去密封效果。
本实用新型的目的在于提供一种当密封圈老化失去胀力后,仍可靠压力锅内的气压补充胀力的压力锅密封圈。
本实用新型的目的是这样实现的:在现有橡胶密封圈内槽加入一个与之配合的非封闭的软管。
加入非封闭软管的作用在于:(1)整个密封圈的厚度可以与压力锅所需厚度相适应,当密封圈过厚时,通过盖压力锅盖所产生的压力可使软管内空气排出一部分,使之厚度改变。(2)在使用过程中,锅内气压进入软管内使其产生胀力作用于橡胶圈,胀力随压力锅内气压的上升而增大,胀力愈大密封圈与压力锅接触愈紧,在橡胶圈老化失去胀力的情况下,可由软管产生的胀力达到密封。
本实用新型通过锅内气压凭借软管补充胀力,因此,在橡胶圈老化的情况下仍可使用,使密封圈的寿命延长。
附图为本实用新型截面示意图。
图中1-橡胶圈,2-软管。
软管用无毒耐高温橡胶制成,软管上设有小孔以达到非封闭。
Claims (1)
1、一种压力锅气压补充胀力密封圈,其特征在于在橡胶圈内槽加入一个与之配合的非封闭的软管。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 92235369 CN2143937Y (zh) | 1992-11-24 | 1992-11-24 | 压力锅气压补充胀力密封圈 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 92235369 CN2143937Y (zh) | 1992-11-24 | 1992-11-24 | 压力锅气压补充胀力密封圈 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2143937Y true CN2143937Y (zh) | 1993-10-20 |
Family
ID=33777155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 92235369 Expired - Fee Related CN2143937Y (zh) | 1992-11-24 | 1992-11-24 | 压力锅气压补充胀力密封圈 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2143937Y (zh) |
-
1992
- 1992-11-24 CN CN 92235369 patent/CN2143937Y/zh not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |