CN202252315U - 一种自力式阀杆密封结构 - Google Patents

一种自力式阀杆密封结构 Download PDF

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Publication number
CN202252315U
CN202252315U CN2011204032997U CN201120403299U CN202252315U CN 202252315 U CN202252315 U CN 202252315U CN 2011204032997 U CN2011204032997 U CN 2011204032997U CN 201120403299 U CN201120403299 U CN 201120403299U CN 202252315 U CN202252315 U CN 202252315U
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China
Prior art keywords
valve rod
bearing
self
packing
valve body
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Expired - Fee Related
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CN2011204032997U
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English (en)
Inventor
王建新
张逸芳
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Jiangsu Shentong Valve Co Ltd
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Jiangsu Shentong Valve Co Ltd
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Priority to CN2011204032997U priority Critical patent/CN202252315U/zh
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Abstract

本实用新型提供了一种自力式阀杆密封结构,包括阀体、阀杆、填料组件、填料压盖、轴承,阀体内的阀杆上装有填料组件,填料组件下方装有轴承,填料压盖压紧填料组件,填料组件与轴承之间还装有密封环,密封环上开有数条径向槽,密封环与阀体、阀杆通过O形圈密封。本实用新型的有益效果是上下填料密封比压均匀,密封可靠,使用寿命长。

Description

一种自力式阀杆密封结构
技术领域
本实用新型涉及一种密封结构,特别是涉及一种阀门阀杆的填料密封结构。
背景技术
目前使用在市政、冶金等行业的使用阀门,其阀杆填料密封一般采用填料压盖压紧填料组件,由于上部填料压盖的单向压紧,使上部填料的受力大,密封比压高,而下部填料受力小,出现密封比压不均匀的情况,长时间运行后,会发生填料组件磨损现象,引起阀杆处的泄漏。
发明内容
为了克服现有阀杆上下填料密封比压不均匀,长时间运行后,会发生填料组件磨损现象,引起阀杆处的泄漏的不足,本实用新型提供一种自力式阀杆密封结构。
本实用新型解决其技术问题所采用的技术方案是一种自力式阀杆密封结构,包括阀体、阀杆、填料组件、填料压盖、轴承,阀体内的阀杆上装有填料组件,填料组件下方装有轴承,填料压盖压紧填料组件,填料组件与轴承之间还装有密封环,密封环上开有数条径向槽,密封环与阀体、阀杆通过O形圈密封。
本实用新型的有益效果是上下填料密封比压均匀,密封可靠,使用寿命长。
附图说明
下面结合附图和实施例对本实用新型作进一步说明。
图1是本实施例的构造图
图中:1.填料压盖;2.阀杆;3.填料组件;4.密封环;5.O形圈;6.径向槽;7.轴承;8.阀体。
具体实施方式
如图1所示一种阀杆密封结构,一种自力式阀杆密封结构,包括阀体8、阀杆2、填料组件3、填料压盖1、轴承7,阀体8内的阀杆2上装有填料组件3,填料组件3下方装有轴承7,填料压盖1压紧填料组件3,填料组件3与轴承7之间还装有密封环4,密封环4上开有数条径向槽6,密封环4与阀体8、阀杆2之间通过O形圈5密封。工作状态下,介质进入轴承7与密封环4的结合面,通过径向槽6,作用于密封环4下端面,在介质压力的作用下,密封环4向上移动,压紧下部填料,克服了传统阀杆的填料密封只有上部填料压紧,密封比压不均匀的现象。

Claims (1)

1.一种自力式阀杆密封结构,包括阀体、阀杆、填料组件、填料压盖、轴承,阀体内的阀杆上装有填料组件,填料组件下方装有轴承,填料压盖压紧填料组件,其特征在于:所述的填料组件与轴承之间还装有密封环,密封环上开有数条径向槽,密封环与阀体、阀杆通过O形圈密封。 
CN2011204032997U 2011-10-15 2011-10-15 一种自力式阀杆密封结构 Expired - Fee Related CN202252315U (zh)

Priority Applications (1)

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CN2011204032997U CN202252315U (zh) 2011-10-15 2011-10-15 一种自力式阀杆密封结构

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CN2011204032997U CN202252315U (zh) 2011-10-15 2011-10-15 一种自力式阀杆密封结构

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CN202252315U true CN202252315U (zh) 2012-05-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104121417A (zh) * 2014-07-12 2014-10-29 江苏神通阀门股份有限公司 一种组合式填料结构

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104121417A (zh) * 2014-07-12 2014-10-29 江苏神通阀门股份有限公司 一种组合式填料结构

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