CN201982396U - Super-pressure hydraulic control check valve - Google Patents

Super-pressure hydraulic control check valve Download PDF

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Publication number
CN201982396U
CN201982396U CN2011201197432U CN201120119743U CN201982396U CN 201982396 U CN201982396 U CN 201982396U CN 2011201197432 U CN2011201197432 U CN 2011201197432U CN 201120119743 U CN201120119743 U CN 201120119743U CN 201982396 U CN201982396 U CN 201982396U
Authority
CN
China
Prior art keywords
valve
hydraulic fluid
fluid port
check valve
spool
Prior art date
Application number
CN2011201197432U
Other languages
Chinese (zh)
Inventor
刘创勋
刘广利
孙海滨
Original Assignee
郑州人造金刚石及制品工程技术研究中心有限公司
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 郑州人造金刚石及制品工程技术研究中心有限公司 filed Critical 郑州人造金刚石及制品工程技术研究中心有限公司
Priority to CN2011201197432U priority Critical patent/CN201982396U/en
Application granted granted Critical
Publication of CN201982396U publication Critical patent/CN201982396U/en

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Abstract

The utility model discloses a super-pressure hydraulic control check valve which comprises a valve body. An oil port I and an oil port II are respectively arranged at the upper part and the lower part of the valve body; a piston cavity for mounting a piston is arranged at one end of the valve body; a check valve is arranged at the other end of the valve body; the check valve comprises a valve core, a valve jacket and a spring seat connected with the valve core and provided with a spring; a choke plug is arranged outside the check valve; and an oil port III is arranged on the side wall of the valve body and is communicated with the external end of the piston cavity. The super-pressure hydraulic control check valve has the advantages of simple and compact structure, low cost and the like.

Description

The ultrahigh pressure Pilot operated check valve

Technical field

The utility model relates to a kind of ultrahigh pressure Pilot operated check valve.

Background technique

Existing ultrahigh pressure Pilot operated check valve as shown in Figure 1, comprise valve body 1, valve body 1 one ends plug 2, be located at the spring 3 on the spring seat 4, spring 3 is connected with one-way valve spool 6 in being located at one-way valve sleeve 5, be provided with piston 7 in the valve body 1, the move left and right of piston 7 can be opened and close one-way valve spool 6, and the other end of valve body 1 is provided with end cap 8.Have four hydraulic fluid ports on the valve body 1, the move left and right of hydraulic fluid port 1-4,1-3 control piston 7, hydraulic fluid port 1-1,1-2 are the logical hydraulic fluid port of system's mesohigh.When fluid in the hydraulic system led to hydraulic fluid port 1-1 by hydraulic fluid port 1-2, control port 1-4 oil-feed made piston 7 move on to low order end, and the fluid in the system is opened one-way valve spool 6, thereby hydraulic fluid port 1-2 and 1-1 are communicated with; When fluid in the hydraulic system fed hydraulic fluid port 1-2 by hydraulic fluid port 1-1, control port 1-3 oil-feed made piston 7 shift to left end, one-way valve spool 6 is opened, thereby hydraulic fluid port 1-1 and 1-2 are communicated with.The shortcoming of this valve is: need a solenoid directional control valve to give control port 1-4,1-3 fuel feeding all the time; One-way valve spool 6 and one-way valve sleeve 5 will cooperate processing in addition, in case one-way valve spool 6 damages, then one-way valve spool 6 and unidirectional valve pocket 5 will be changed simultaneously, one-way valve spool 6 and one-way valve sleeve price height, and maintenance cost is big.

The model utility content

The purpose of this utility model provides a kind of simple in structure, ultrahigh pressure Pilot operated check valve that cost is low.

For achieving the above object, the technical solution adopted in the utility model is:

The ultrahigh pressure Pilot operated check valve, comprise valve body, valve body is respectively equipped with hydraulic fluid port I, hydraulic fluid port II up and down, valve body one end is provided with the piston cavity that piston is installed, the other end is provided with one-way valve in the valve body, one-way valve comprises spool, valve pocket and the spring seat that has spring that is connected with spool, and the one-way valve outside is provided with plug, and body wall is provided with a hydraulic fluid port III and is communicated with the piston cavity outer end.

Described spool is a spheroid, and spring seat is provided with the conical surface and is connected with spheroid.

Described plug is provided with pressure sensor interface, in connect pressure transducer.

The utility model has the advantages that: 1. do not need solenoid directional control valve to come the move left and right of control piston, body wall is provided with a hydraulic fluid port III and is communicated with the piston cavity bottom, can move by control piston by inject control oil to the hydraulic fluid port III, simple in structure 2. change the one-way valve spool into and use steel ball, equally all be linear sealing, but, only get final product with changing a steel ball as long as valve pocket is not damaged, and the centering performance of steel ball, price is also cheap.Directly on plug tapped hole of processing be used for the setting pressure sensor, can measure system pressure very easily, reduce the joint in the hydraulic system pipeline, thereby reduced leakage of oil, simple in structure, compact.

Description of drawings

Fig. 1 is existing ultrahigh pressure Pilot operated check valve structural representation;

Fig. 2 is the utility model structural representation.

Embodiment

As shown in Figure 2, the ultrahigh pressure Pilot operated check valve, comprise valve body 1, valve body is respectively equipped with hydraulic fluid port I 1-1, hydraulic fluid port II 1-2 up and down, and valve body 1 one ends are provided with the piston cavity 10 that piston 7 is installed, and piston cavity 10 ends are provided with end cap 8, the other end is provided with one-way valve in the valve body 1, one-way valve comprises spool 9, valve pocket 5 and the spring seat that has spring 34 that is connected with spool 9, and the one-way valve outside is provided with plug 2, and valve body 1 sidewall is provided with a hydraulic fluid port III 1-3 and is communicated with piston cavity 10 outer ends.Described spool 9 is a steel ball, and spring seat 4 is provided with the conical surface that is connected with steel ball.Connect the pressure sensor interface 11 of pressure transducer in described plug 2 is provided with, can measure system pressure very easily.

During the utility model work, when system pressure oil flows to hydraulic fluid port I 1-1 by hydraulic fluid port II 1-2, steel ball is opened, made hydraulic fluid port II 1-2 and hydraulic fluid port I 1-1 UNICOM by the pressure of system self; When system pressure oil flows to hydraulic fluid port II 1-2 by hydraulic fluid port I 1-1,, make piston 7, steel ball is opened, make hydraulic fluid port I 1-1 and hydraulic fluid port II 1-2 UNICOM to moving to left by inject control oil to hydraulic fluid port III 1-3.If when needing the pressurize oil sealing, cut off the control oil of hydraulic fluid port III 1-3, at this moment steel ball is pressed on the potted line by the pressure in spring and the chamber, make that the pressure in the chamber can not revealed, thereby reach the effect of pressurize.

Claims (3)

1. ultrahigh pressure Pilot operated check valve, comprise valve body, valve body is respectively equipped with hydraulic fluid port I, hydraulic fluid port II up and down, valve body one end is provided with the piston cavity that piston is installed, the other end is provided with one-way valve in the valve body, and one-way valve comprises spool, valve pocket and the spring seat that has spring that is connected with spool, and the one-way valve outside is provided with plug, it is characterized in that body wall is provided with a hydraulic fluid port III and is communicated with the piston cavity outer end.
2. ultrahigh pressure Pilot operated check valve as claimed in claim 1 is characterized in that, described spool is a spheroid, and spring seat is provided with the conical surface and is connected with spheroid.
3. ultrahigh pressure Pilot operated check valve as claimed in claim 2 is characterized in that described plug is provided with pressure sensor interface, in connect pressure transducer.
CN2011201197432U 2011-04-22 2011-04-22 Super-pressure hydraulic control check valve CN201982396U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201197432U CN201982396U (en) 2011-04-22 2011-04-22 Super-pressure hydraulic control check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201197432U CN201982396U (en) 2011-04-22 2011-04-22 Super-pressure hydraulic control check valve

Publications (1)

Publication Number Publication Date
CN201982396U true CN201982396U (en) 2011-09-21

Family

ID=44609858

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201197432U CN201982396U (en) 2011-04-22 2011-04-22 Super-pressure hydraulic control check valve

Country Status (1)

Country Link
CN (1) CN201982396U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103736809A (en) * 2013-10-28 2014-04-23 江苏合丰机械制造有限公司 Water circulation device in hydro-bugling machine
CN103912536A (en) * 2014-04-01 2014-07-09 嘉善海力达工具有限公司 Feedback compensation type hydraulic unloading valve
CN104235097A (en) * 2013-11-20 2014-12-24 江苏恒立液压有限公司 Pressure-compensating valve
CN104712798A (en) * 2013-12-12 2015-06-17 天津帝广机电设备有限公司 Combined pressure relief valve
CN105090150A (en) * 2015-08-05 2015-11-25 华中科技大学 Ultrahigh-pressure hydraulic-control integral reversing valve
CN105864129A (en) * 2016-05-26 2016-08-17 广东南曦液压机械有限公司 Full-automatic stone cracking machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103736809A (en) * 2013-10-28 2014-04-23 江苏合丰机械制造有限公司 Water circulation device in hydro-bugling machine
CN103736809B (en) * 2013-10-28 2016-01-06 江苏合丰机械制造有限公司 Water circle device in hydraulic expanding-forming machine
CN104235097A (en) * 2013-11-20 2014-12-24 江苏恒立液压有限公司 Pressure-compensating valve
CN104235097B (en) * 2013-11-20 2016-07-27 江苏恒立液压有限公司 Pressure-compensated valve
CN104712798A (en) * 2013-12-12 2015-06-17 天津帝广机电设备有限公司 Combined pressure relief valve
CN104712798B (en) * 2013-12-12 2017-04-19 天津帝广机电设备有限公司 Combined pressure relief valve
CN103912536A (en) * 2014-04-01 2014-07-09 嘉善海力达工具有限公司 Feedback compensation type hydraulic unloading valve
CN105090150A (en) * 2015-08-05 2015-11-25 华中科技大学 Ultrahigh-pressure hydraulic-control integral reversing valve
CN105090150B (en) * 2015-08-05 2017-03-22 华中科技大学 Ultrahigh-pressure hydraulic-control integral reversing valve
CN105864129A (en) * 2016-05-26 2016-08-17 广东南曦液压机械有限公司 Full-automatic stone cracking machine
CN105864129B (en) * 2016-05-26 2018-01-23 广东南曦液压机械有限公司 Automatically split stone machine

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