CN202971375U - Ultrahigh pressure hydraulic relief valve - Google Patents
Ultrahigh pressure hydraulic relief valve Download PDFInfo
- Publication number
- CN202971375U CN202971375U CN 201220678408 CN201220678408U CN202971375U CN 202971375 U CN202971375 U CN 202971375U CN 201220678408 CN201220678408 CN 201220678408 CN 201220678408 U CN201220678408 U CN 201220678408U CN 202971375 U CN202971375 U CN 202971375U
- Authority
- CN
- China
- Prior art keywords
- guide sleeve
- pressure hydraulic
- thimble
- high pressure
- valve body
- 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
Images
Landscapes
- Safety Valves (AREA)
Abstract
An ultrahigh pressure hydraulic relief valve comprises a valve body which is provided with an oil return port and a high pressure oil port, a guide sleeve and a compression nut fixing the guide sleeve are installed inside the valve body, the guide sleeve corresponds to the oil return port, and the rear end of the compression nut is provided with a control oil port. An ejector pin is installed inside the guide sleeve, a press rod is installed inside the compression nut, the front end of the ejector pin corresponds to the high pressure oil port, and the rear end of the ejector pin abuts against the front end of the press rod. Sealing rings are installed between the press rod and the inner wall of the compression nut, between the outer surface of the guide sleeve and the inner wall of the valve body, and between the inner wall of the guide sleeve and the ejector pin. The ultrahigh pressure hydraulic relief valve is reasonable in structure, simple and convenient to operate, low in cost, free of leakage phenomena, capable of meeting requirements of a high pressure hydraulic system for pressure and requirements of ultrahigh pressure equipment for pressure relief, and capable of enabling pressure relief of an ultrahigh pressure hydraulic system to be stable.
Description
Technical field
The utility model belongs to superhard material and synthesizes field ultrahigh-pressure hydraulic equipment technical field, particularly a kind of ultrahigh pressure hydraulic discharging pressure valve.
Background technique
existing hydraulic discharging pressure valve is of less types, a kind of structure commonly used as shown in Figure 2, it is mainly by valve body 13, the screw plug 14 of valve body 13 interior assemblings, spring 15, spring seat 16, unidirectional valve pocket 17, steel ball 18, guide rod 19, lower end cap 20 consists of, be provided with air relief cock 22 on valve body 13, control port 23, high pressure oil return opening 24 and high pressure hydraulic fluid port 25, its working principle is: during release, control port 23 oil-feeds, promoting guide rod 19 moves to left, guide rod 19 backs down steel ball 18, spring 15 is compressed, this moment, high pressure oil was from the slit flow of high pressure hydraulic fluid port 25 between unidirectional valve pocket 17 and steel ball 18 to high pressure oil return opening 24, finally flow back to fuel tank, realize release.In use there is following defective in this structure: 1, the sealing at unidirectional valve pocket 17 and valve body 13 inwalls, screw plug 14 and valve body 13 inwalls realizes the sealing of O type circle by seal ring 21, and sealing load is lower, and seal ring 21 often damages; 2, release speed is non-adjustable, and the release velocity ratio is very fast, can't the to meet the need release steady equipment slowly; 3, this pressure-relief valve can only be used board-like connection, uses narrow limitation large.
The model utility content
The utility model provide a kind of rational in infrastructure, can adapt to hyperpressure equipment release demand and can make hyperpressure hydraulic system release ultrahigh pressure hydraulic discharging pressure valve more stably.
For achieving the above object, the technical solution of the utility model is: a kind of ultrahigh pressure hydraulic discharging pressure valve, comprise valve body, described valve body is provided with return opening and high pressure hydraulic fluid port, be provided with the clamping nut of guide sleeve and fixed guide cover in valve body, guide sleeve is corresponding with return opening, and the clamping nut rear end is provided with control port; Be provided with thimble in guide sleeve, be provided with depression bar in clamping nut, the thimble front end is corresponding with the high pressure hydraulic fluid port, thimble rear end and depression bar front end apical grafting; Between depression bar and clamping nut inwall, between guide sleeve outer surface and valve interior wall, be respectively equipped with seal ring between guide sleeve inwall and thimble.
Be provided with sealing gasket between described guide sleeve front end and high pressure hydraulic fluid port, sealing gasket is corresponding with the thimble front end, and the thimble front end sleeve is provided with the spring that is connected with sealing gasket.
Compared with prior art, the utility model has the advantages that:
1, the utility model comprises valve body, and described valve body is provided with return opening and high pressure hydraulic fluid port, is provided with the clamping nut of guide sleeve and fixed guide cover in valve body, and guide sleeve is corresponding with return opening, and the clamping nut rear end is provided with control port; Be provided with thimble in guide sleeve, be provided with depression bar in clamping nut, the thimble front end is corresponding with the high pressure hydraulic fluid port, thimble rear end and depression bar front end apical grafting; Between depression bar and clamping nut inwall, between guide sleeve outer surface and valve interior wall, be respectively equipped with seal ring between guide sleeve inwall and thimble; Be provided with sealing gasket between guide sleeve front end and high pressure hydraulic fluid port, sealing gasket is corresponding with the thimble front end, and the thimble front end sleeve is provided with the spring that is connected with sealing gasket; It is rational in infrastructure, easy and simple to handle, with low cost, the zone of high pressure by valve body and the linear hard sealing of gasket-like, is also linear hard sealing between sealing gasket and thimble, and sealing is reliable, can not occur leaking, can adapt to the more demand of high pressure hydraulic system to pressure, can adapt to hyperpressure equipment release demand, can make the release of hyperpressure hydraulic system more steady.
2, be provided with sealing gasket between guide sleeve front end and high pressure hydraulic fluid port, sealing gasket is corresponding with the thimble front end, and the thimble front end sleeve is provided with the spring that is connected with sealing gasket, by changing hole dimension in sealing gasket, different release speed can be realized, the demand of the steady release of ultrahigh pressure can be adapted to.
3, the utility model both can be realized board-like connection, can realize that again tubular type connects, and Placement is more flexible, and Applicable scope is wide.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model prior art.
Embodiment
Ultrahigh pressure hydraulic discharging pressure valve as shown in Figure 1, it comprises valve body 1, be provided with return opening 7 and high pressure hydraulic fluid port 8 on valve body 1, be provided with the clamping nut 5 of guide sleeve 2 and fixed guide cover 2 in valve body 1, radial direction oil hole on guide sleeve 2 is corresponding with return opening 7, and clamping nut 5 rear ends are provided with axial control port 6.Be provided with thimble 3 in guide sleeve 2, be provided with depression bar 4 in clamping nut 5, thimble 3 front ends are corresponding with high pressure hydraulic fluid port 8, thimble 3 rear ends and depression bar 4 front end apical graftings.Be respectively equipped with seal ring 12 between the inwall of depression bar 4 and clamping nut 5, between the inwall of guide sleeve 2 outer surfaces and valve body 1, be respectively equipped with seal ring 11 between guide sleeve 2 inwalls and thimble 3.Be provided with sealing gasket 10 between the front end of guide sleeve 2 and high pressure hydraulic fluid port 8, sealing gasket 10 is corresponding with the front end of thimble 3, and the front end sleeve of thimble 3 is provided with the spring 9 that is connected with sealing gasket 10.
When the utility model uses, high pressure hydraulic fluid port 8 is connected with high-pressure system, return opening 7 is connected with fuel tank, its working principle is: during pressurize, control port 6 passes into controls oil, control oil to the certain pressure of depression bar 4, depression bar 4 is passed to thimble 3 with pressure, thimble 3 is realized linear hard sealing with sealing gasket 10 by the conical surface, due to the ear end face area of depression bar 4 area much larger than thimble 3 sealings place, the pressure of controlling oil had amplification, thimble 3 is pressed on sealing gasket 10, guarantees between hold period oil-proof; During release, control port 6 places cutting-off controlling oil supplying, this moment, the high pressure oil of system self together promoted thimble 3 and depression bar 4 to the right, and the high pressure oil of high pressure hydraulic fluid port 8 flows back to fuel tank through sealing gasket 10 by return opening 7 at this moment, realizes steady release.
Claims (2)
1. a ultrahigh pressure hydraulic discharging pressure valve, comprise valve body, it is characterized in that, described valve body is provided with return opening and high pressure hydraulic fluid port, be provided with the clamping nut of guide sleeve and fixed guide cover in valve body, guide sleeve is corresponding with return opening, and the clamping nut rear end is provided with control port; Be provided with thimble in guide sleeve, be provided with depression bar in clamping nut, the thimble front end is corresponding with the high pressure hydraulic fluid port, thimble rear end and depression bar front end apical grafting; Between depression bar and clamping nut inwall, between guide sleeve outer surface and valve interior wall, be respectively equipped with seal ring between guide sleeve inwall and thimble.
2. ultrahigh pressure hydraulic discharging pressure valve as claimed in claim 1, is characterized in that, is provided with sealing gasket between described guide sleeve front end and high pressure hydraulic fluid port, and sealing gasket is corresponding with the thimble front end, and the thimble front end sleeve is provided with the spring that is connected with sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220678408 CN202971375U (en) | 2012-12-11 | 2012-12-11 | Ultrahigh pressure hydraulic relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220678408 CN202971375U (en) | 2012-12-11 | 2012-12-11 | Ultrahigh pressure hydraulic relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971375U true CN202971375U (en) | 2013-06-05 |
Family
ID=48512459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220678408 Expired - Fee Related CN202971375U (en) | 2012-12-11 | 2012-12-11 | Ultrahigh pressure hydraulic relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971375U (en) |
-
2012
- 2012-12-11 CN CN 201220678408 patent/CN202971375U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105545858B (en) | A kind of special Pneumatic valve of pneumohydraulic pressure-cylinder and pneumohydraulic pressure-cylinder | |
| CN203626872U (en) | Plug-in type metal ring loop line hard sealing reversing valve | |
| CN202580185U (en) | Novel pulling-cut valve | |
| CN203881486U (en) | Self-sealing type pressure gage joint | |
| CN203322413U (en) | Two-stage pressure unloading valve | |
| CN202560255U (en) | Inserting type hard sealing bidirectional lock | |
| CN202674362U (en) | Mass-flow spherical stop valve used under a coal mine | |
| CN202971375U (en) | Ultrahigh pressure hydraulic relief valve | |
| CN215890270U (en) | Fuel injection structure of fuel pump | |
| CN201212471Y (en) | Clutch master cylinder assembly | |
| CN201090773Y (en) | Secondary seal ball valve | |
| CN202203462U (en) | Conical ultrahigh-pressure self-sealing system | |
| CN203549080U (en) | Quantitative pneumatic valve | |
| CN203892652U (en) | Piston type pressure regulator | |
| CN202811583U (en) | Bidirectional hydraulic lock without internal drainage | |
| CN203285767U (en) | Active oil return supercharging device | |
| CN102661396A (en) | Novel valve core connecting sleeve mechanism for stop valve | |
| CN202228735U (en) | Leak-proof one-way valve | |
| CN202215521U (en) | Plug-in type one-way lock | |
| CN202580099U (en) | Globe stop valve for underground comprehensive mechanized coal mining faces | |
| CN201779320U (en) | Novel gas reducing valve | |
| CN104482255A (en) | One-way valve for high-pressure fuel gas long-distance pipeline | |
| CN203488794U (en) | Swing check valve | |
| CN203240060U (en) | Novel leakage-free high-pressure valve | |
| CN202833100U (en) | Grease return resistant device for grease pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20200318 Granted publication date: 20130605 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20221211 Granted publication date: 20130605 |
|
| 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: 20130605 |