CN204061393U - A kind of explosion-proof relief valve - Google Patents
A kind of explosion-proof relief valve Download PDFInfo
- Publication number
- CN204061393U CN204061393U CN201420498871.6U CN201420498871U CN204061393U CN 204061393 U CN204061393 U CN 204061393U CN 201420498871 U CN201420498871 U CN 201420498871U CN 204061393 U CN204061393 U CN 204061393U
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- CN
- China
- Prior art keywords
- valve
- valve core
- sliding bar
- poppet
- hole
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of explosion-proof relief valve, comprise valve body, along the valve body hole that valve body is axially offered, be arranged on the valve pocket in valve body hole and form the poppet valve core of conical surface seal with valve pocket, described valve pocket offers valve pocket hole vertically, sliding bar is slidably fitted with in valve pocket hole, described sliding bar is made up of two-part, the upper part of sliding bar connects the lower end of poppet valve core, lower part coordinates with the wall in valve pocket hole, the upper end of described poppet valve core is connected with valve core rod, described valve core rod is socketed with pressure adjusting spring, when structure and service condition allow, select the pressure adjusting spring that rigidity is large, the frequency of slowing down vibration and amplitude, reduce noise, the upper end face of one end contact poppet valve core of described pressure adjusting spring, the other end contact spring seat.Poppet valve core is made with guiding sliding bar form by the relief valve that the utility model provides, and at fluid through filler opening, can cross the noise effectively eliminated poppet valve core and produce because of axis and radial vibration.
Description
Technical field
The utility model belongs to field of hydraulic control, particularly relates to a kind of explosion-proof relief valve.
Background technique
The effect of pressure controlled valve is the oil liquid pressure in hydraulic control system, to meet the different demands of final controlling element to ouput force, Driving Torque and motion state.Pressure controlled valve of a great variety, sorting technique is different, but is all utilize the equilibrium principle of hydraulic coupling and spring force to carry out work, and the pre compressed magnitude (pre-force adjustment) of Regulation spring can obtain different pilot pressures.Almost any one hydraulic system all will use relief valve, and the Main Function of relief valve is the overflow by valve port, makes the pressure remained constant in controlled system or loop, realizes pressure regulation, voltage stabilizing or pressure limiting (preventing overload).The kind of relief valve is a lot, and basic principle is variable restrictor and pressure feedback, the chock pressure difference produced when the controlled inlet pressure of valve flows to valve port from liquid.When system pressure increases, traffic demand can be made to reduce, now relief valve is opened, and excess traffic is overflow oil sump tank, ensures relief valve inlet pressure; When relief valve is connected on oil circuit, relief valve produces back pressure, and moving element stationarity increases.But relief valve at work Problems existing easily produces vibration, noise.When system working pressure is greater than 20MPa, vibration, noise is more outstanding, and produces larger pressure surge to system, affects the service behaviour of whole hydraulic system time serious.
Model utility content
The utility model, in order to overcome deficiency of the prior art, provides a kind of explosion-proof relief valve, effectively can alleviate noise and vibration.
The utility model is achieved through the following technical solutions:
A kind of explosion-proof relief valve, the valve body hole comprise valve body, axially offering along valve body, be arranged on the valve pocket in valve body hole and form the poppet valve core of conical surface seal with valve pocket, described valve pocket offers valve pocket hole vertically, sliding bar is slidably fitted with in valve pocket hole, described sliding bar is made up of two-part, the upper part of sliding bar connects the lower end of poppet valve core, and lower part coordinates with the wall in valve pocket hole.
As optimal technical scheme of the present utility model, the upper end of described poppet valve core is connected with valve core rod, and described valve core rod is socketed with pressure adjusting spring, when structure and service condition allow, select the pressure adjusting spring that rigidity is large, the frequency of slowing down vibration and amplitude, reduce noise; The upper end face of one end contact poppet valve core of described pressure adjusting spring, the other end contact spring seat.
Compared with prior art, the beneficial effects of the utility model are: the poppet valve core of traditional relief valve in the course of the work, both axial vibration was done, do again and radially wobble, poppet valve core is made with guiding sliding bar form by the relief valve that the utility model provides, at fluid through filler opening, the noise effectively eliminated poppet valve core and produce because of axis and radial vibration can be crossed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-valve body; 2-valve body hole; 3-valve pocket; 4-poppet valve core; 5-valve core rod; 6-pressure adjusting spring; 7-spring seat; 8-sliding bar.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, Fig. 1 is structural representation of the present utility model.
The explosion-proof relief valve of described one, the valve body hole 2 comprise valve body 1, axially offering along valve body 1, be arranged on the valve pocket 3 in valve body hole 2 and form the poppet valve core 4 of conical surface seal with valve pocket 3, poppet valve core 4 has that structure is simple, reliable in action, good airproof performance, response is fast, contamination resistance is strong.Described valve pocket 3 offers valve pocket hole vertically, is slidably fitted with sliding bar 8 in valve pocket hole, and described sliding bar 8 forms " convex " shape structure by upper and lower two-part, and the upper part of sliding bar 8 connects the lower end of poppet valve core 4, and lower part coordinates with the wall in valve pocket hole.The poppet valve core 4 of traditional relief valve in the course of the work, both axial vibration was done, do again and radially wobble, poppet valve core 4 is made with guiding sliding bar form by the relief valve that the present embodiment provides, the lower part of sliding bar 8 slides axially in valve pocket hole, guarantee at fluid through filler opening, eliminate the noise that poppet valve core produces because of axis and radial vibration.When hydraulic coupling is greater than the pre-force adjustment of pressure adjusting spring, poppet valve core 4 rises, and valve port is opened, and pressure oil is gone out through oil outlet overflow.
The upper end of described poppet valve core 4 is connected with valve core rod 5, and described valve core rod 5 is socketed with pressure adjusting spring 6, when structure and service condition allow, selects the pressure adjusting spring that rigidity is large, the frequency of slowing down vibration and amplitude, reduces noise; The upper end face of one end contact poppet valve core 4 of described pressure adjusting spring 6, the other end contact spring seat 7.Described spring seat 7 embeds in valve body 1, can effectively prevent the swing because of pressure adjusting spring 6 from causing rocking of spring seat 7, reduces vibration odds further.
The utility model the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. an explosion-proof relief valve, the valve body hole (2) comprise valve body (1), axially offering along valve body (1), be arranged on the valve pocket (3) in valve body hole (2) and form the poppet valve core (4) of conical surface seal with valve pocket (3), it is characterized in that: described valve pocket (3) offers valve pocket hole vertically, sliding bar (8) is slidably fitted with in valve pocket hole, described sliding bar (8) is made up of two-part, the upper part of sliding bar (8) connects the lower end of poppet valve core (4), and lower part coordinates with the wall in valve pocket hole.
2. the explosion-proof relief valve of one according to claim 1, it is characterized in that: the upper end of described poppet valve core (4) is connected with valve core rod (5), described valve core rod (5) is socketed with pressure adjusting spring (6), the upper end face of one end contact poppet valve core (4) of described pressure adjusting spring (6), the other end contact spring seat (7).
3. the explosion-proof relief valve of one according to claim 2, is characterized in that: described spring seat (7) embeds in valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498871.6U CN204061393U (en) | 2014-08-21 | 2014-08-21 | A kind of explosion-proof relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498871.6U CN204061393U (en) | 2014-08-21 | 2014-08-21 | A kind of explosion-proof relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204061393U true CN204061393U (en) | 2014-12-31 |
Family
ID=52202919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420498871.6U Expired - Fee Related CN204061393U (en) | 2014-08-21 | 2014-08-21 | A kind of explosion-proof relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204061393U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679027A (en) * | 2018-08-03 | 2018-10-19 | 中船绿洲镇江船舶辅机有限公司 | A kind of overflow type hydraulic explosion-proof valve |
-
2014
- 2014-08-21 CN CN201420498871.6U patent/CN204061393U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679027A (en) * | 2018-08-03 | 2018-10-19 | 中船绿洲镇江船舶辅机有限公司 | A kind of overflow type hydraulic explosion-proof 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 |
Granted publication date: 20141231 Termination date: 20150821 |
|
| EXPY | Termination of patent right or utility model |