CN203023158U - Hydraulic unloading valve - Google Patents
Hydraulic unloading valve Download PDFInfo
- Publication number
- CN203023158U CN203023158U CN 201220621764 CN201220621764U CN203023158U CN 203023158 U CN203023158 U CN 203023158U CN 201220621764 CN201220621764 CN 201220621764 CN 201220621764 U CN201220621764 U CN 201220621764U CN 203023158 U CN203023158 U CN 203023158U
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- China
- Prior art keywords
- valve
- hydraulic
- valve seat
- valve body
- valve core
- 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 - Lifetime
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Abstract
The utility model discloses a hydraulic unloading valve which is used in a hydraulic cleaning device. The hydraulic unloading valve comprises a valve body, a valve seat and a valve core. In an inner hole of the valve body, the head of the valve seat is inserted into the valve core and is in conical-surface fit with the valve core, the tapered head of the valve seat is provided with at least two annular grooves used for installation of a seal ring, the valve core is connected with an actuator located outside the valve body, and the actuator drives the valve core to linearly move in the inner hole of the valve body. Compared with the prior art, the hydraulic unloading valve utilizes an air cylinder as a power source providing sealing force for the valve core. Automatic control of the valve can be achieved through control over movement of the air cylinder, the valve seat is in conical-surface fit with the valve core, the annular grooves corresponding to the structure are formed in the conical surface, and effective sealing of high-pressure water is achieved. In addition, at the moment of pressure release, liquid flow has large impact, and flowing speed is high. The seal ring is reasonably arranged to guarantee long-time use of the valve.
Description
Technical field
The utility model relates to a kind of hydraulic unloading valve.
Background technique
In development efficient hydraulic washing unit, need to use a kind of hydraulic unloading valve that can carry out automatic control, also requirement will be satisfied the effective sealing of hydraulic pressure 60MPa, and hydraulic unloading valve in the market can not meet requirement on performance, therefore needs a kind of novel hydraulic unloading valve.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of that can control voluntarily and can satisfy the hydraulic unloading valve of the effective sealing of hydraulic pressure 60MPa.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of hydraulic unloading valve, be used for hydraulic cleaning device, hydraulic unloading valve comprises valve body, valve seat and spool, in the endoporus of described valve body, the head of described valve seat insert in described spool and with spool be cone match, be provided with at the conical nose of valve seat the annular groove that twice at least are used for installing seal ring, spool also is connected with the driver that is positioned at the valve body outside, can move at the endoporus cathetus of valve body at the driving lower valve core of driver.
Annular groove on the conical nose of described valve seat is provided with twice.
Described driver is cylinder.
The utility model adopts technique scheme, and compared with prior art, this hydraulic unloading valve cylinder is as power source, provide sealing force to spool, by the action of control cylinder, can realize the control voluntarily of valve, the valve seat spool adopts cone match, be designed with the annular groove for structure on the conical surface, realize the effective sealing to high water pressure, and in pressure release moment, liquid flow impact power is large, flow velocity is high, by the reasonable Arrangement seal ring, has guaranteed the long-term use of valve.
Description of drawings
Fig. 1 is the structural representation of hydraulic unloading valve of the present utility model;
Mark in above-mentioned figure is: 1, valve body; 2, spool; 3, valve seat.
Embodiment
Be illustrated in figure 1 as a kind of hydraulic unloading valve of the present utility model, be used for hydraulic cleaning device, it comprises valve body 1, valve seat 3 and spool 2, in the endoporus of valve body 1, the head of valve seat 3 inserts in the cone shape hole of spool 2, realize the cone match with spool 2, be provided with at the conical nose of valve seat 3 annular groove that twice are used for the mounting O-shaped seal ring.This hydraulic unloading valve can coordinate cylinder or other driver to move as the endoporus cathetus at valve body 1 that power source promotes spool 2, driver outside valve body 1 is connected with spool 2, closely cooperating between formation and valve seat 3, with the high-pressure and hydraulic medium-tight in valve seat 3, when external force removes, spool 2 glides under the effect of hydraulic coupling, separates with valve seat 3, and high-pressure medium flows out by the through hole of valve body 1 side.
The working procedure of this hydraulic unloading valve is as follows: when needs keep sealing, form between the conical nose by cylinder or other powered spool 2 and valve seat 3 and coordinate, the sealing of the O-ring seals assurance of the conical nose of valve seat 3 to high-pressure medium.When not needing to keep pressure, remove outer inside casing or other power, spool 2 moves down under the effect of hydraulic coupling, and interior media flows out by the through hole of valve body 1 side.
The above is exemplarily described the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technological scheme carry out; or without improving, design of the present utility model and technological scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (3)
1. hydraulic unloading valve, be used for hydraulic cleaning device, hydraulic unloading valve comprises valve body, valve seat and spool, it is characterized in that: in the endoporus of described valve body, the head of described valve seat insert in described spool and with spool be cone match, be provided with at the conical nose of valve seat the annular groove that twice at least are used for installing seal ring, spool also is connected with the driver that is positioned at the valve body outside, can move at the endoporus cathetus of valve body at the driving lower valve core of driver.
2. hydraulic unloading valve according to claim 1, it is characterized in that: the annular groove on the conical nose of described valve seat is provided with twice.
3. hydraulic unloading valve according to claim 1, it is characterized in that: described driver is cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220621764 CN203023158U (en) | 2012-11-22 | 2012-11-22 | Hydraulic unloading valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220621764 CN203023158U (en) | 2012-11-22 | 2012-11-22 | Hydraulic unloading valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023158U true CN203023158U (en) | 2013-06-26 |
Family
ID=48647147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220621764 Expired - Lifetime CN203023158U (en) | 2012-11-22 | 2012-11-22 | Hydraulic unloading valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023158U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179650A (en) * | 2014-08-22 | 2014-12-03 | 实用动力(中国)工业有限公司 | Ultrahigh-pressure leak-proof manual pump |
| CN105332966A (en) * | 2015-12-09 | 2016-02-17 | 东北石油大学 | High pressure unloading valve for hydraulic driving hydrostatic test |
| CN109812533A (en) * | 2019-03-05 | 2019-05-28 | 马鞍山钢铁股份有限公司 | A kind of oil valve of bellows high-voltage energy-storage damper |
-
2012
- 2012-11-22 CN CN 201220621764 patent/CN203023158U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179650A (en) * | 2014-08-22 | 2014-12-03 | 实用动力(中国)工业有限公司 | Ultrahigh-pressure leak-proof manual pump |
| CN105332966A (en) * | 2015-12-09 | 2016-02-17 | 东北石油大学 | High pressure unloading valve for hydraulic driving hydrostatic test |
| CN109812533A (en) * | 2019-03-05 | 2019-05-28 | 马鞍山钢铁股份有限公司 | A kind of oil valve of bellows high-voltage energy-storage damper |
| CN109812533B (en) * | 2019-03-05 | 2024-05-17 | 马鞍山钢铁股份有限公司 | Oil valve of bag type high-pressure energy storage shock absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |