CN201687789U - 手动单向阀 - Google Patents

手动单向阀 Download PDF

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Publication number
CN201687789U
CN201687789U CN2010201508225U CN201020150822U CN201687789U CN 201687789 U CN201687789 U CN 201687789U CN 2010201508225 U CN2010201508225 U CN 2010201508225U CN 201020150822 U CN201020150822 U CN 201020150822U CN 201687789 U CN201687789 U CN 201687789U
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way valve
valve
spool
manual
spring
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何国良
胡学军
闻荣
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FUYANG TONGLI INDUSTRIAL Co Ltd
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FUYANG TONGLI INDUSTRIAL Co Ltd
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Abstract

一种手动单向阀,涉及超高压液压系统的液压控制阀。阀体内设有单向阀,单向阀一侧连弹簧,弹簧油路通出油口,另一侧通油路,油路连进油口;单向阀上方设有带有锥度的阀芯,阀芯连接手柄;单向阀下方连有调压装置;所述调压装置为阀芯连压缩弹簧;所述带有锥度的阀芯与阀座之间设有挡圈和O形圈;阀座与阀体之间设有密封垫。本实用新型保障千斤顶在工作时,油路系统中出现意外,而造成千斤顶下降的现象。

Description

手动单向阀 
技术领域:
本实用新型涉及超高压液压系统的液压控制阀。 
背景技术:
现有的液压系统的液压控制阀只适用于31.5MP,当压力大于70MP时,就需要相适应的液压控制阀。 
发明内容:
本实用新型提供一种保证千斤顶长期处于锁住状态手动单向阀。本实用新型是通过如下技术方案来实现的:一种手动单向阀,其主要技术特征是阀体内设有单向阀,单向阀一侧连弹簧,弹簧油路通出油口,另一侧通油路,油路连进油口;单向阀上方设有带有锥度的阀芯,阀芯连接手柄;单向阀下方连有调压装置; 
所述调压装置为阀芯连压缩弹簧; 
所述带有锥度的阀芯与阀座之间设有挡圈和O形圈;阀座与阀体之间设有密封垫。 
本实用新型保障千斤顶在工作时,油路系统中出现意外,而造成千斤顶下降的现象。 
附图说明:
图1为本实用新型结构示意图。 
具体实施方式:
如图1所示,本手动单向阀,阀体1内设有单向阀4,单向阀一侧连弹簧3,弹簧油路通出油口A,另一侧通油路,油路连进油口P;单向阀上方设有带有锥度的阀芯12,阀芯连接手柄14;单向阀下方连有调压装置;调压装置为阀芯5连压缩弹簧6构成。带有锥度的阀芯与阀座13之间设有挡圈10和O形圈9;阀座与阀体之间设有密封垫11。图中还设有螺钉2,螺钉7,螺钉8,螺钉15。 
A接千斤顶,P接动力油,工作时千斤顶举升,手动单向阀是锁紧的,此时千斤顶永远处于保压锁住状态,液压油只进不出,当千斤顶要回油时,只有打开手柄,千斤顶才能下降。 

Claims (3)

1.一种手动单向阀,其特征在于阀体内设有单向阀,单向阀一侧连弹簧,弹簧油路通出油口,另一侧通油路,油路连进油口;单向阀上方设有带有锥度的阀芯,阀芯连接手柄;单向阀下方连有调压装置。
2.如权利要求1所述的一种手动单向阀,其特征在于所述调压装置为阀芯连压缩弹簧构成。
3.如权利要求1所述的一种手动单向阀,其特征在于所述带有锥度的阀芯与阀座之间设有挡圈和O形圈;阀座与阀体之间设有密封垫。 
CN2010201508225U 2010-04-02 2010-04-02 手动单向阀 Expired - Lifetime CN201687789U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104074822A (zh) * 2014-06-26 2014-10-01 无锡市威海达机械制造有限公司 一种手动回油单向阀
CN105883664A (zh) * 2016-04-15 2016-08-24 浙江中力机械有限公司 一体式液压系统

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104074822A (zh) * 2014-06-26 2014-10-01 无锡市威海达机械制造有限公司 一种手动回油单向阀
CN104074822B (zh) * 2014-06-26 2016-03-23 无锡市威海达机械制造有限公司 一种手动回油单向阀
CN105883664A (zh) * 2016-04-15 2016-08-24 浙江中力机械有限公司 一体式液压系统

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Granted publication date: 20101229