CN202867951U - 止回阀 - Google Patents

止回阀 Download PDF

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Publication number
CN202867951U
CN202867951U CN 201220545984 CN201220545984U CN202867951U CN 202867951 U CN202867951 U CN 202867951U CN 201220545984 CN201220545984 CN 201220545984 CN 201220545984 U CN201220545984 U CN 201220545984U CN 202867951 U CN202867951 U CN 202867951U
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choma
steel
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CN 201220545984
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王高祥
张长恩
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Lingbao Jinyuan Mining Co Ltd
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Lingbao Jinyuan Mining Co Ltd
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Abstract

本实用新型公开了一种止回阀,包括顶部设置阀盖的阀体,阀体内设阀座、阀瓣和滑动连接于阀盖下侧的竖直的活塞杆,阀瓣设置于活塞杆的底端并与阀座相应设置,环绕阀座的面向阀瓣的顶口内边沿设有卡槽,卡槽内设有钢口环,钢口环与阀座为可拆卸连接。本实用新型是一种便于检修,节约成本的止回阀。

Description

止回阀
技术领域
本实用新型涉及一种止回阀。
背景技术
当止回阀应用于矿井下时,由于工作环境较为恶劣,井下酸性水会严重腐蚀止回阀密封线,难以检修,致使止回阀关闭不严,漏水报废。增加生产成本,降低工作效率。
实用新型内容
本实用新型的目的是提供一种便于检修,节约成本的止回阀。
为实现上述目的,本实用新型采用如下技术方案:一种止回阀,包括顶部设置阀盖的阀体,阀体内设阀座、阀瓣和滑动连接于阀盖下侧的竖直的活塞杆,阀瓣设置于活塞杆的底端并与阀座相应设置,环绕阀座的面向阀瓣的顶口内边沿设有卡槽,卡槽内设有钢口环,钢口环与阀座为可拆卸连接。
钢口环形状与卡槽形状相适配,钢口环与卡槽为紧配合。
钢口环的内径与阀座的内径尺寸相同。
钢口环为平板圆环状。
本实用新型所述的止回阀,当钢口环受到侵蚀损坏时,只需去掉损坏的钢口环,更换一个新的钢口环,止回阀即可继续使用,本实用新型所述的止回阀便于检修,延长止回阀的使用寿命,并节约成本。
附图说明
图1是本实用新型的结构示意图。
具体实施方式
由图1所示的止回阀,包括顶部设置阀盖2的阀体1,阀体1的左侧和右侧分别设置有出口和进口,阀体1内设阀座7、阀瓣3和滑动连接于阀盖2下侧的竖直的活塞杆5,阀盖2下侧固设有套筒4,活塞杆5顶端插入套筒4的下口,活塞杆5可在套筒4内上下滑动,阀瓣3设置于活塞杆5的底端并与阀座7相应设置,阀瓣3位于阀座7的上方。环绕阀座7的面向阀瓣3的顶口内边沿设有卡槽8,卡槽8内设有钢口环6,钢口环6为平板圆环状,钢口环6形状与卡槽8形状相适配,钢口环6的内径与阀座7的内径尺寸相同,钢口环6与卡槽8通过紧配合以实现可拆卸连接。
本实用新型所述的止回阀,是在DN250型止回阀基础上作出的改进,是铣除原止回阀在阀座7上的密封线,继而在环绕阀座7的面向阀瓣3的顶口内边沿形成卡槽8,卡槽8内镶一已加工带有相同密封线的钢口环6,即与阀座7内口径相同的钢口环6,继续使用,如以后再腐蚀只更换钢口环6即可,便于检修,节约成本。

Claims (4)

1. 一种止回阀,包括顶部设置阀盖的阀体,阀体内设阀座、阀瓣和滑动连接于阀盖下侧的竖直的活塞杆,阀瓣设置于活塞杆的底端并与阀座相应设置,其特征在于:环绕阀座的面向阀瓣的顶口内边沿设有卡槽,卡槽内设有钢口环,钢口环与阀座为可拆卸连接。
2. 如权利要求1所述的止回阀,其特征在于:钢口环形状与卡槽形状相适配,钢口环与卡槽为紧配合。
3. 如权利要求1或2所述的止回阀,其特征在于:钢口环的内径与阀座的内径尺寸相同。
4.如权利要求3所述的止回阀,其特征在于:钢口环为平板圆环状。
CN 201220545984 2012-10-24 2012-10-24 止回阀 Expired - Fee Related CN202867951U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220545984 CN202867951U (zh) 2012-10-24 2012-10-24 止回阀

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Application Number Priority Date Filing Date Title
CN 201220545984 CN202867951U (zh) 2012-10-24 2012-10-24 止回阀

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CN202867951U true CN202867951U (zh) 2013-04-10

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CN 201220545984 Expired - Fee Related CN202867951U (zh) 2012-10-24 2012-10-24 止回阀

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103195954A (zh) * 2013-04-11 2013-07-10 江苏爱科斯伦油田设备制造有限公司 一种对开门式单流阀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103195954A (zh) * 2013-04-11 2013-07-10 江苏爱科斯伦油田设备制造有限公司 一种对开门式单流阀

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Granted publication date: 20130410

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