CN2189677Y - 输送换向阀 - Google Patents

输送换向阀 Download PDF

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Publication number
CN2189677Y
CN2189677Y CN 94211027 CN94211027U CN2189677Y CN 2189677 Y CN2189677 Y CN 2189677Y CN 94211027 CN94211027 CN 94211027 CN 94211027 U CN94211027 U CN 94211027U CN 2189677 Y CN2189677 Y CN 2189677Y
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CN
China
Prior art keywords
sealing
utility
model
seal ring
ring
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Expired - Fee Related
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CN 94211027
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English (en)
Inventor
蔡德钧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WENZHOU CITY PRECISION-CASTING VALVE FACTORY
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WENZHOU CITY PRECISION-CASTING VALVE FACTORY
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Application filed by WENZHOU CITY PRECISION-CASTING VALVE FACTORY filed Critical WENZHOU CITY PRECISION-CASTING VALVE FACTORY
Priority to CN 94211027 priority Critical patent/CN2189677Y/zh
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Publication of CN2189677Y publication Critical patent/CN2189677Y/zh
Anticipated expiration legal-status Critical
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Abstract

本实用新型有关一种输送换向阀,具有阀体、密 封筒,密封筒有一密封面和密封环,密封环为封闭环, 嵌设在密封面的侧周,由于采用了全封闭的密封环, 消除了现有技术中由于温度变化而带来的胀缩泄漏, 提高了密封性能,密封安全可靠。

Description

本实用新型涉及一种输送换向阀,属阀门类。
目前国内使用的输送换向阀主要采用日本产的,重量轻,但密封性能不佳,它的密封部件采用圆形密封环与密封条组合的密封结构,由于构成密封环和密封条材料的线膨胀系数与钢的不同,在不同温度下,结合部位的胀缩造成大量的泄漏,密封不可靠。
本实用新型的目的在于克服上述技术的缺陷、提供一种泄漏量小、密封性能佳的输送换向阀。
本实用新型具有阀体、密封筒,密封筒有一密封面和密封环,密封环为封闭环,且嵌设在密封面的侧周。
以下结合实施例及附图进一步说明本实用新型。
图1:本实施例的结构视图;
图2:图1的A-A剖视图。
本实施例具有三通阀体3、密封筒4,密封筒4活动装配在阀体3内,有一密封面2和密封环1,密封环1为封闭环,嵌设在密封面2的侧周。当密封面2处于图1位置时,形成一通路,当密封面2转过一角度,则形成另一通路。
本实用新型由于采用了全封闭的密封环,消除了现有技术中由于温度变化而带来的胀缩泄漏,提高了密封性能,密封安全可靠。

Claims (1)

1、一种具有阀体、密封筒的输送换向阀,密封筒有一密封面和密封环,其特征在于:密封环(1)为封闭环,嵌设在密封面(2)的侧周。
CN 94211027 1994-05-04 1994-05-04 输送换向阀 Expired - Fee Related CN2189677Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 94211027 CN2189677Y (zh) 1994-05-04 1994-05-04 输送换向阀

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 94211027 CN2189677Y (zh) 1994-05-04 1994-05-04 输送换向阀

Publications (1)

Publication Number Publication Date
CN2189677Y true CN2189677Y (zh) 1995-02-15

Family

ID=33828278

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 94211027 Expired - Fee Related CN2189677Y (zh) 1994-05-04 1994-05-04 输送换向阀

Country Status (1)

Country Link
CN (1) CN2189677Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101230929B (zh) * 2008-02-29 2010-04-21 合肥通用机械研究院 两位三通粉体换向阀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101230929B (zh) * 2008-02-29 2010-04-21 合肥通用机械研究院 两位三通粉体换向阀

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