CN203363306U - 对夹单瓣旋启式止回阀 - Google Patents

对夹单瓣旋启式止回阀 Download PDF

Info

Publication number
CN203363306U
CN203363306U CN 201320392229 CN201320392229U CN203363306U CN 203363306 U CN203363306 U CN 203363306U CN 201320392229 CN201320392229 CN 201320392229 CN 201320392229 U CN201320392229 U CN 201320392229U CN 203363306 U CN203363306 U CN 203363306U
Authority
CN
China
Prior art keywords
check valve
valve
swing check
butt
single disc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201320392229
Other languages
English (en)
Inventor
叶旭东
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.)
YONGJIA HONGYI VALVE CO Ltd
Original Assignee
YONGJIA HONGYI VALVE CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by YONGJIA HONGYI VALVE CO Ltd filed Critical YONGJIA HONGYI VALVE CO Ltd
Priority to CN 201320392229 priority Critical patent/CN203363306U/zh
Application granted granted Critical
Publication of CN203363306U publication Critical patent/CN203363306U/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Check Valves (AREA)

Abstract

本实用新型公开了对夹单瓣旋启式止回阀,包括阀板和阀芯,所述阀板上设有圆形密封槽,且圆形密封槽内镶嵌有弹性橡胶密封圈。本实用新型的有益效果:采用短型结构尺寸和单阀瓣旋启式设计,相比传统的旋启式止回阀,该阀门具有无外漏、水平安装,密封性能好、线性震动小、压降小和零座圈磨损优势,特别是水平安装时阀门开阀压力小。

Description

对夹单瓣旋启式止回阀
技术领域
本实用新型涉及止回阀,特别涉及一种对夹单瓣旋启式止回阀。
背景技术
现有的市场上常见的止回阀又称单向阀或逆止阀,其作用是防止管路中的介质倒流。水泵吸水管的底阀也属于止回阀类。止回阀按结构划分,可分为升降式止回阀、旋启式止回阀和蝶式止回阀三种。旋启式止回阀分为单瓣式、双瓣式和多瓣式三种。对于频繁启停以及停泵时管路有较高的回流冲击压力的渣浆泵系统来说,不仅对机械密封有破坏性的冲击力,而且很可能因转子倒转将叶轮卸下来造成事故。针对上面的问题,一些企业在管路系统中加上止回阀,这样在停泵时,管路的回流冲击压力就不会对叶轮及机械密封造成危害。由于在管路系统中添加的止回阀为普通的止回阀,回流冲击压力仍会给管路带来危害。
实用新型内容
本实用新型所要解决的技术问题是针对现有技术的不足,提供对夹单瓣旋启式止回阀。
为了实现上述目的,本实用新型所采取的措施:
对夹单瓣旋启式止回阀,包括阀板和阀芯,所述阀板上设有圆形密封槽,且圆形密封槽内镶嵌有弹性橡胶密封圈。
阀芯位于阀板内,且上端设有的横向转轴在阀板的横向凹槽内,且与阀板内的横向轴孔转动连接。
本实用新型的有益效果:采用短型结构尺寸和单阀瓣旋启式设计,相比传统的旋启式止回阀,该阀门具有无外漏、水平安装,密封性能好、线性震动小、压降小和零座圈磨损优势,特别是水平安装时阀门开阀压力小。
附图说明
图1是本实用新型的结构示意图。
具体实施方式
如图1所示,对夹单瓣旋启式止回阀,包括阀板1和阀芯2,所述阀板1上设有圆形密封槽3,且圆形密封槽3内镶嵌有弹性橡胶密封圈4。阀芯2位于阀板1内,且上端设有的横向转轴在阀板1的横向凹槽内,且与阀板1内的横向轴孔转动连接。

Claims (2)

1.对夹单瓣旋启式止回阀,包括阀板(1)和阀芯(2),其特征在于:所述阀板(1)上设有阀芯(2),且圆形密封槽(3)内镶嵌有弹性橡胶密封圈(4)。
2.如权利要求1所述的对夹单瓣旋启式止回阀,其特征在于,阀芯(2)位于阀板(1)内,且上端设有的横向转轴在阀板(1)的横向凹槽内,且与阀板(1)内的横向轴孔转动连接。
CN 201320392229 2013-07-03 2013-07-03 对夹单瓣旋启式止回阀 Expired - Fee Related CN203363306U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320392229 CN203363306U (zh) 2013-07-03 2013-07-03 对夹单瓣旋启式止回阀

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320392229 CN203363306U (zh) 2013-07-03 2013-07-03 对夹单瓣旋启式止回阀

Publications (1)

Publication Number Publication Date
CN203363306U true CN203363306U (zh) 2013-12-25

Family

ID=49811070

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320392229 Expired - Fee Related CN203363306U (zh) 2013-07-03 2013-07-03 对夹单瓣旋启式止回阀

Country Status (1)

Country Link
CN (1) CN203363306U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106762649A (zh) * 2015-11-23 2017-05-31 中国科学院沈阳科学仪器股份有限公司 一种干式真空泵的排气结构

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106762649A (zh) * 2015-11-23 2017-05-31 中国科学院沈阳科学仪器股份有限公司 一种干式真空泵的排气结构

Similar Documents

Publication Publication Date Title
CN204082565U (zh) 真空引水离心泵装置
CN203363306U (zh) 对夹单瓣旋启式止回阀
CN106151606A (zh) 一种止回阀
CN202790718U (zh) 一种单瓣旋启式止回阀
CN201396488Y (zh) 一种新型止回阀
CN203115195U (zh) 一种瓣膜止回阀
CN203320611U (zh) 一种水源井井口装置
CN202684155U (zh) 球形止回阀的阀体钻模
CN204647410U (zh) 一种可注脂的多重复合密封阀座结构
CN203272894U (zh) 旋启式止回阀
CN203784319U (zh) 压力自密封截止阀
CN205896290U (zh) 速闭式止回阀
CN202597798U (zh) 一种可靠防倒流的止回阀
CN205534414U (zh) 一种新型止回阀
CN204628657U (zh) 一种静音型止回阀
CN106015660A (zh) 一种速闭式止回阀
CN202040323U (zh) 斜式密封圈
CN204459310U (zh) 新型消声止回阀
CN204357776U (zh) 一种新型自吸泵吸入口装置
CN203500104U (zh) 一种小流量高扬程自吸泵
CN203784381U (zh) 压力自密封旋启式止回阀
CN204511895U (zh) 离心泵的改进装置
CN204647442U (zh) 一种强化密封性能的止回阀
CN202140230U (zh) 立轴混流式水轮机轴中心孔补气阀
CN202349266U (zh) 一种新型两位三通阀门

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131225

Termination date: 20140703

EXPY Termination of patent right or utility model