CN201982396U - Super-pressure hydraulic control check valve - Google Patents
Super-pressure hydraulic control check valve Download PDFInfo
- 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
- 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
Links
- 239000012530 fluid Substances 0.000 claims description 34
- 239000003921 oils Substances 0.000 abstract 3
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
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.
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 Expired - Fee Related 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 (7)
| 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 |
| CN110792652A (en) * | 2019-11-04 | 2020-02-14 | 柳州柳工挖掘机有限公司 | Quick-change connector electromagnetic valve |
-
2011
- 2011-04-22 CN CN2011201197432U patent/CN201982396U/en not_active Expired - Fee Related
Cited By (12)
| 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 |
| CN110792652A (en) * | 2019-11-04 | 2020-02-14 | 柳州柳工挖掘机有限公司 | Quick-change connector electromagnetic valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20200422 |