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 PDF

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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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China
Prior art keywords
pressure
sealing ring
air
flexible pipe
expansive force
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Expired - Fee Related
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CN 92235369
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English (en)
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李育芳
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Individual
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Individual
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Priority to CN 92235369 priority Critical patent/CN2143937Y/zh
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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。
CN 92235369 1992-11-24 1992-11-24 压力锅气压补充胀力密封圈 Expired - Fee Related CN2143937Y (zh)

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

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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)

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CN (1) CN2143937Y (zh)

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C19 Lapse of patent right due to non-payment of the annual fee
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