CN2632370Y - Two-stage connecting high-pressure high-flow pressure-relief fluid discharge valves - Google Patents
Two-stage connecting high-pressure high-flow pressure-relief fluid discharge valves Download PDFInfo
- Publication number
- CN2632370Y CN2632370Y CN 03262611 CN03262611U CN2632370Y CN 2632370 Y CN2632370 Y CN 2632370Y CN 03262611 CN03262611 CN 03262611 CN 03262611 U CN03262611 U CN 03262611U CN 2632370 Y CN2632370 Y CN 2632370Y
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- CN
- China
- Prior art keywords
- valve
- pressure
- plug
- main valve
- flow pressure
- 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
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Abstract
The utility model pertains to a hydraulic valve, and relates to a two-stage inserted high-pressure large flow pressure relief discharging valve which is suitable for large and medium-sized hydraulic machine, which consists of a pilot valve and an inserted main valve core, and is characterized in that a throttle check valve is connected between the pilot valve and the main valve core. The two-stage inserted high-pressure large flow pressure relief discharging valve can reduce the opening and closing time, and has small impaction to the system, convenient and reliable operation.
Description
Technical field: the utility model belongs to hydrovalve, is a kind of secondary plug-in type high-pressure high-flow release liquid discharging valve that is applicable to large and medium-sized hydraulic press.
Background technique: the diameter of the clutch release slave cylinder of general large and medium-sized hydraulic press and stroke are all bigger, when the movement velocity height, when needing big flow, will make every effort to the release of system's energy quick and stable, and convenient adjustable.And existing release liquid discharging valve exists release time length, impacts big, inconvenient problem with use.
Summary of the invention: the purpose of this utility model: design a kind of secondary plug-in type high-pressure high-flow release liquid discharging valve, it can reduce opening and closing time, and little to system shock, and easy to use and reliable.
The technical solution of the utility model: design a kind of secondary plug-in type high-pressure high-flow release liquid discharging valve, it comprises pilot valve, plug-in type main valve plug, it is characterized in that: connect one-way throttle valve between pilot valve and main valve plug.
The technical solution of the utility model is: realize the adjusting of main valve plug opening speed by adjustment throttle valve openings of sizes, thereby realize the steadily reliable release of press, when pressure unloaded to desirable value, this main valve plug can be used as liquid discharging valve usefulness again.Another effect of one-way throttle valve is in order to realize closing rapidly of main valve plug, and it has not only reasonably controlled the unlatching and the closing velocity of main valve, makes on the press to press in time, and release is steady, and is less to the impact of system and equipment.
Characteristics of the present utility model: be between pilot valve and main valve plug, to be connected with an one-way throttle valve, reduced the formation of press release link, make easy to adjustly, and reduced the leakage link, be not only applicable to high voltage large-sized press and also be applicable to middle-size and small-size press.
Description of drawings:
Below in conjunction with embodiment's accompanying drawing the utility model is described further.
Fig. 1 is embodiment's a structural representation.
Among the figure: 1, main valve plug; 2, one-way throttle valve; 3, pilot valve.
Embodiment: as shown in Figure 1, it comprises pilot valve 3, plug-in type main valve plug 1 secondary plug-in type high-pressure high-flow release liquid discharging valve, and one-way throttle valve 2 is formed, and one-way throttle valve 2 is connected between pilot valve 3 and the main valve plug 1.Pilot valve 3 is steadily closed and is opened by the openings of sizes realization main valve plug 1 of adjusting throttle valve by the quick opening and closing of one-way throttle valve 2 control main valve plugs 1.In extrusion process of production, when the oil cylinder end-of-job will carry out the release action, pilot valve 3 outages reduced main valve plug 1 pilot pressure by throttle valve, and main valve is opened fast.Pressure oil enters the control chamber of main valve plug 1 by one-way valve when pilot valve 3 outage, makes the main valve quick closedown.Regulate the opening amount of throttle valve, just can control the opening and closing speed of this valve, thereby realize the quick and stable release of press, and easy to adjust.
Claims (1)
1, secondary plug-in type high-pressure high-flow release liquid discharging valve it comprise pilot valve, plug-in type main valve plug, it is characterized in that: between pilot valve and main valve plug, be connected with one-way throttle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03262611 CN2632370Y (en) | 2003-08-06 | 2003-08-06 | Two-stage connecting high-pressure high-flow pressure-relief fluid discharge valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03262611 CN2632370Y (en) | 2003-08-06 | 2003-08-06 | Two-stage connecting high-pressure high-flow pressure-relief fluid discharge valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2632370Y true CN2632370Y (en) | 2004-08-11 |
Family
ID=34296909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03262611 Expired - Fee Related CN2632370Y (en) | 2003-08-06 | 2003-08-06 | Two-stage connecting high-pressure high-flow pressure-relief fluid discharge valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2632370Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101457778A (en) * | 2007-12-10 | 2009-06-17 | 沃尔沃建造设备控股（瑞典）有限公司 | Hydraulic circuit having holding valve of external pilot pressure operation type |
| CN101048598B (en) * | 2004-10-15 | 2011-05-18 | 博世力士乐股份有限公司 | Guiding one-way valve |
| CN112343884A (en) * | 2020-11-05 | 2021-02-09 | 北京航天发射技术研究所 | Two-stage pilot-controlled high-speed large-flow switch valve and method |
-
2003
- 2003-08-06 CN CN 03262611 patent/CN2632370Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101048598B (en) * | 2004-10-15 | 2011-05-18 | 博世力士乐股份有限公司 | Guiding one-way valve |
| CN101457778A (en) * | 2007-12-10 | 2009-06-17 | 沃尔沃建造设备控股（瑞典）有限公司 | Hydraulic circuit having holding valve of external pilot pressure operation type |
| CN101457778B (en) * | 2007-12-10 | 2013-11-13 | 沃尔沃建造设备控股（瑞典）有限公司 | Hydraulic circuit having holding valve of external pilot pressure operation type |
| CN112343884A (en) * | 2020-11-05 | 2021-02-09 | 北京航天发射技术研究所 | Two-stage pilot-controlled high-speed large-flow switch valve and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040811 Termination date: 20110806 |