CN2262630Y - 截止阀 - Google Patents

截止阀 Download PDF

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Publication number
CN2262630Y
CN2262630Y CN 96235375 CN96235375U CN2262630Y CN 2262630 Y CN2262630 Y CN 2262630Y CN 96235375 CN96235375 CN 96235375 CN 96235375 U CN96235375 U CN 96235375U CN 2262630 Y CN2262630 Y CN 2262630Y
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valve
sealing
rod
utility
model
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CN 96235375
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唐建
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Abstract

一种截止阀含有手轮、阀盖、阀杆、阀座、阀体,在阀盖阀体联接的结合端面间,装有由橡胶制作的隔膜阀件将阀体流道与阀盖内腔隔开,又同时是闭合元件,受阀杆控制可与阀座上的密封表面压紧贴合,使截止阀关合。结构紧凑新颖、密封性好,阀杆阀盖间不需密封却无介质外泄,可广泛应用于化工、冶金、制药、农药等行业,用于输送液体或气体介质。

Description

截止阀
本实用新型是一种流体管路上使用的截止阀。
现有截止阀是利用手轮带动阀杆,操纵闭合元件在阀座上开合启闭来实现流路的通断,由于阀杆自阀盖旋入,而阀体流道充斥整个内腔,要保证阀体阀盖有相对运动情况下的密封,需采用动密封结构形式。不易密封,易泄漏又结构繁化,此外闭合元件与阀座间通常采用平面密封形式,密封面上易沉积颗粒杂渣,使密封面易磨损擦伤影响截止阀的密封性和寿命。
本实用新型目的是设计一种能隔断截止阀内流道与阀盖内腔连通,从而阀杆阀盖间不需作密封设计的新型截止阀。
本实用新型是如下实现的,在阀体内于阀体阀盖联接间装有能产生挠曲、弹性形变的隔膜阀件。它把阀体内流道与阀盖内腔隔开,同时又作为闭合元件可将阀体内流道前后腔密封分断,通过旋转手轮带动阀杆控制上述隔膜阀件与阀座上的密封面分离或压紧贴合,使截止阀开启关闭。隔膜阀件的挠曲弹性形变可采用有延展性和弹性的材料制作和相应的结构设计实现。
图1、图2给出了本实用新型龙头的简要结构。
本截止阀含有下列主要组成部分:手轮1、阀盖2、阀杆3、隔膜阀件4、阀座5、阀体6、阀芯7。阀盖与阀体采用螺纹联接,隔膜阀件用橡胶材料制作,具有V型断面形状,中央锥顶部模压入螺钉8,阀盖与阀体可采用螺纹或法兰联接,隔膜阀件以其突缘装在阀盖阀体的联结端面间,阀芯7拧紧在螺钉8上,阀杆以卡圈或螺纹形式与阀芯联接,通过转动手轮、带动阀杆推压或提位阀芯,使隔膜阀件的锥端部与阀座的密封锥面压合或分离。
本实用新型截止阀结构紧凑新颖,阀体内流道与阀盖内腔隔断,阀杆阀盖间不需作密封设计无流体外泄,当阀件与阀座间采用如实施例锥面密封,较平面密封有密封不易擦伤磨损,密封性更好,使用寿命延长的效果,其结构既可适用阀体以法兰与管道联接的大型截止阍,也适用于阀体以螺纹与管道联接的小型截止阀,可广泛用于化工、农药、冶金、制药等行业输送液体或气体介质。

Claims (2)

1、一种截止阀,含有手轮(1)、阀盖(2)、阀杆(3)、阀座(5)、阀体(6),其特征是在阀盖、阀体联接的结合端面间装有由能产生挠曲,弹性形变的隔膜阀件(4),该隔膜阀件受阀杆控制与阀座(5)的密封面可形成分离或压合的开启、闭合状态。
2、按权利要求1所述的截止阀,其特征是隔膜阀件(4)由橡胶制作,具有V形断面形状,中心顶部模压入螺钉(8)经阀芯(7)与阀杆(3)联结,阀件以锥顶部与阀座上的密封锥面贴合。
CN 96235375 1996-07-27 1996-07-27 截止阀 Expired - Fee Related CN2262630Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 96235375 CN2262630Y (zh) 1996-07-27 1996-07-27 截止阀

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 96235375 CN2262630Y (zh) 1996-07-27 1996-07-27 截止阀

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CN2262630Y true CN2262630Y (zh) 1997-09-17

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CN 96235375 Expired - Fee Related CN2262630Y (zh) 1996-07-27 1996-07-27 截止阀

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CN (1) CN2262630Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108204466A (zh) * 2016-12-19 2018-06-26 波凯特有限及两合公司 膜片阀

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108204466A (zh) * 2016-12-19 2018-06-26 波凯特有限及两合公司 膜片阀
CN108204466B (zh) * 2016-12-19 2021-07-09 波凯特有限及两合公司 膜片阀

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