CN108662208A - A kind of pilot operated valve device of symmetrical structure - Google Patents
A kind of pilot operated valve device of symmetrical structure Download PDFInfo
- Publication number
- CN108662208A CN108662208A CN201810542406.0A CN201810542406A CN108662208A CN 108662208 A CN108662208 A CN 108662208A CN 201810542406 A CN201810542406 A CN 201810542406A CN 108662208 A CN108662208 A CN 108662208A
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- China
- Prior art keywords
- chamber
- piston
- spring
- hole
- valve body
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
- F16K39/024—Devices for relieving the pressure on the sealing faces for lift valves using an auxiliary valve on the main valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
This disclosure relates to a kind of pilot operated valve device of symmetrical structure, including：Valve body, valve body is interior to be equipped with first chamber, second chamber and third chamber, and valve body is equipped with and is respectively communicated with first chamber, the inlet of second chamber and third chamber, liquid outlet and pressure relief opening.It is more succinct relative to solenoid valve by the output and pressure release of input hydraulic pressure control valve in technical solution provided by the present disclosure, it is not easy to it breaks down, and simple in structure, it is of low cost.
Description
Technical field
This disclosure relates to valve technology field more particularly to a kind of pilot operated valve device of symmetrical structure.
Background technology
Valve, which is a kind of fluid, to be flowed into along import, and can not be from the direction controlling tool of outlet return.Applied to not permitting
Perhaps the occasion of reverse fluid flow.Pilot operated valve device is the valve by control Fluid pressure switching fluid flow direction.Compared to electromagnetism
Valve, mechanical valve is of low cost as conventional valves, applied widely, but since its operation flexibility is poor, and gradually quilt
Substitution.
Invention content
Technical problems based on background technology, the present disclosure proposes a kind of pilot operated valve devices of symmetrical structure.
A kind of pilot operated valve device for symmetrical structure that the disclosure proposes, including：Valve body, valve body is interior to be equipped with first chamber, the second chamber
Room and third chamber, valve body are equipped with and are respectively communicated with first chamber, the inlet of second chamber and third chamber, liquid outlet and let out
Press mouth；
First chamber is connected to second chamber by first through hole, and first chamber and third chamber are connected by the second through-hole
It is logical；First spring and first piston are installed in second chamber；First spring one end is fixedly mounted on valve body, the other end and
One piston connects；First through hole is inserted into the one end of first piston far from the first spring；Be equipped in third chamber second spring and
Second piston；Second spring one end is fixedly mounted on valve body, and the other end is connect with second piston；Second piston is far from the second bullet
The second through-hole is inserted into one end of spring；
Under natural conditions, first through hole and the second through-hole are blocked by first piston and second piston respectively；Under working condition,
As first chamber inputs liquid, when the pressure in first chamber reaches first threshold, the first spring contraction, first through hole is beaten
It opens, when the pressure in first chamber reaches second threshold, second spring is shunk, and the second through-hole is opened, and second threshold is more than first
Threshold value.
Preferably, first piston and second piston are taper platform structure or convex platform structure.
Preferably, first piston and second piston are symmetrical structure.
Preferably, the first guide rod is equipped in second chamber, the first guide rod is parallel to the peace of first piston motion track
On valve body, one end is inserted into first piston and is slidably connected with first piston, and the first spring is set on the first guide rod.
Preferably, the second guide rod is equipped in third chamber, the second guide rod is parallel to the peace of second piston motion track
On valve body, one end is inserted into second piston and is slidably connected with second piston, and second spring is set on the second guide rod.
Preferably, it is coated with gasket in first piston and second piston.
A kind of pilot operated valve device for symmetrical structure that the disclosure proposes when normal work, passes through inlet, first chamber, second
Chamber and liquid outlet can guarantee the normal control to flow channel for liquids；It is poured into when torrent occurs extremely in the input duct of inlet connection
Or liquid outlet connection delivery channel block when, by compress second spring to move second piston, to pass through pressure relief opening
Pressure release, the safety of runner where ensure that entire hydraulic valve are conducive to abnormal timely discovery and investigation.
In technical solution provided by the present disclosure, by the output and pressure release of input hydraulic pressure control valve, more relative to solenoid valve
Add succinct, it is not easy to it breaks down, and simple in structure, it is of low cost.
Description of the drawings
Fig. 1 is a kind of pilot operated valve device structure chart for symmetrical structure that the disclosure proposes.
Specific implementation mode
Referring to Fig.1, a kind of pilot operated valve device for symmetrical structure that the disclosure proposes, including：Valve body 1, valve body 1 is interior to be equipped with the first chamber
Room 1-1, second chamber 1-2 and third chamber 1-3, valve body 1, which is equipped with, is respectively communicated with first chamber 1-1, second chamber 1-2 and the
Inlet 1A, liquid outlet 1B and the pressure relief opening 1C of three chamber 1-3.
First chamber 1-1 is connected to second chamber 1-2 by first through hole, and first chamber 1-1 and third chamber 1-3 pass through
Second through-hole is connected to.In this way, in the case that first through hole is unimpeded, the liquid of inlet 1A inputs is by first chamber 1-1, first
It is exported from liquid outlet 1B after through-hole and second chamber 1-2；In the case that second through-hole is unimpeded, the liquid of inlet 1A inputs also may be used
It is discharged from pressure relief opening 1C after first chamber 1-1, the second through-hole and third chamber 1-3.
First spring 2 and first piston 3 are installed in second chamber 1-2.First spring, 2 one end is fixedly mounted on valve body 1
On, the other end is connect with first piston 3.First through hole is inserted into the one end of first piston 3 far from the first spring 2.In this way, first lives
Plug 3 is moved with the flexible of the first spring 2, and under natural conditions, first piston 3 is inserted into first through hole and blocks first through hole
To completely cut off first chamber 1-1 and second chamber 1-2；Then pull first piston 3 to open first through hole when the first spring 2 compresses,
To be connected to first chamber 1-1 and second chamber 1-2.In present embodiment, 3 periphery of first piston is coated with gasket, to protect
Demonstrate,prove the leakproofness that first piston 3 blocks first through hole.
Second spring 4 and second piston 5 are installed in third chamber 1-3.4 one end of second spring is fixedly mounted on valve body 1
On, the other end is connect with second piston 5.The second through-hole is inserted into the one end of second piston 5 far from second spring 4.Second piston 5 with
The flexible of second spring 4 and move, under natural conditions, second piston 5 be inserted into the second through-hole and by the blocking of the second through-hole with every
Exhausted first chamber 1-1 and third chamber 1-3；Being shunk when second spring 4 pulls second piston 5 to open the second through-hole, thus the
Three chamber 1-3 are connected to first chamber 1-1.In present embodiment, 5 periphery of second piston is coated with gasket, to ensure second
Piston 5 blocks the leakproofness of the second through-hole.
In present embodiment, first piston 3 and second piston 5 are taper platform structure or convex platform structure.Specifically, the
The first guide rod and the second guide rod are further respectively had in two chamber 1-2 and third chamber 1-3.First guide rod is parallel to first
3 motion track of piston is mounted on valve body 1, and one end is inserted into first piston 3 and is slidably connected with first piston 3, the first bullet
Spring 2 is set on the first guide rod.In this way, the setting of the first guide rod, advantageously ensures that steady in 3 moving process of first piston
It is fixed, it avoids first piston 3 from being rushed to open and retrodeviates from first through hole, to ensure the recycling of first piston 3.Similarly, it second leads
To bar be parallel to 5 motion track of second piston be mounted on valve body 1 on, one end be inserted into second piston 5 simultaneously with second piston 5 slide
Dynamic connection, second spring 4 are set on the second guide rod.
Under natural conditions, first through hole and the second through-hole are blocked by first piston 3 and second piston 5 respectively.Working condition
Under, as first chamber 1-1 inputs liquid, when the pressure in first chamber 1-1 reaches first threshold, the first spring 2 is shunk, the
One through-hole is opened, and when the pressure in first chamber 1-1 reaches second threshold, second spring 4 is shunk, and the second through-hole is opened, and second
Threshold value is more than first threshold.In this way, in present embodiment, when which works normally, pass through inlet 1A, first chamber 1-
1, second chamber 1-2 and liquid outlet 1B can guarantee the normal control to flow channel for liquids；When the input duct of inlet 1A connections is different
Often occur torrent pour into or the delivery channel of liquid outlet 1B connections block when, by compress second spring 4 with move second live
Plug 5, to which by pressure relief opening 1C pressure releases, the safety of runner, is conducive to abnormal timely discovery where ensure that entire hydraulic valve
And investigation.
In present embodiment, first piston 3 and second piston 5 are symmetrical structure.In this way, the first spring 2 and can be passed through
The compression surplus control of two springs 4 directly controls the pressure release opportunity of third chamber 1-3, convenient for the controllable of pilot operated valve device work.
A kind of preferable specific implementation mode that the above, the only disclosure propose, but the protection domain of the disclosure is simultaneously
Not limited to this, any one skilled in the art is in the technical scope that the disclosure discloses, according to the disclosure
Technical solution and its open design are subject to equivalent substitution or change, should all cover within the protection domain of the disclosure.
Claims (6)
1. a kind of pilot operated valve device of symmetrical structure, which is characterized in that including：Valve body (1), valve body (1) is interior to be equipped with first chamber (1-
1), second chamber (1-2) and third chamber (1-3), valve body (1) are equipped with and are respectively communicated with first chamber (1-1), second chamber
Inlet (1A), liquid outlet (1B) and the pressure relief opening (1C) of (1-2) and third chamber (1-3)；
First chamber (1-1) is connected to second chamber (1-2) by first through hole, first chamber (1-1) and third chamber (1-3)
It is connected to by the second through-hole；The first spring (2) and first piston (3) are installed in second chamber (1-2)；First spring (2) one
End is fixedly mounted on valve body (1), and the other end is connect with first piston (3)；The one of separate first spring (2) of first piston (3)
First through hole is inserted at end；Second spring (4) and second piston (5) are installed in third chamber (1-3)；Second spring (4) one end
It is fixedly mounted on valve body (1), the other end is connect with second piston (5)；The one end of second piston (5) far from second spring (4)
It is inserted into the second through-hole；
Under natural conditions, first through hole and the second through-hole are blocked by first piston (3) and second piston (5) respectively；Working condition
Under, as first chamber (1-1) inputs liquid, when the pressure in first chamber (1-1) reaches first threshold, the first spring (2)
It shrinks, first through hole is opened, and when the pressure in first chamber (1-1) reaches second threshold, second spring (4) is shunk, and second is logical
Hole is opened, and second threshold is more than first threshold.
2. the pilot operated valve device of symmetrical structure as described in claim 1, which is characterized in that first piston (3) and second piston (5) are
Taper platform structure or convex platform structure.
3. the pilot operated valve device of symmetrical structure as described in claim 1, which is characterized in that first piston (3) and second piston (5) are
Symmetrical structure.
4. the pilot operated valve device of symmetrical structure as described in claim 1, which is characterized in that led equipped with first in second chamber (1-2)
To bar, the first guide rod be parallel to first piston (3) motion track be mounted on valve body (1) on, one end be inserted into first piston
(3) and with first piston (3) it is slidably connected, the first spring (2) is set on the first guide rod.
5. the pilot operated valve device of symmetrical structure as described in claim 1, which is characterized in that led equipped with second in third chamber (1-3)
To bar, the second guide rod be parallel to second piston (5) motion track be mounted on valve body (1) on, one end be inserted into second piston
(5) and with second piston (5) it is slidably connected, second spring (4) is set on the second guide rod.
6. such as the pilot operated valve device of symmetrical structure described in any one of claim 1 to 5, which is characterized in that first piston (3) and second
Piston is coated with gasket on (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810542406.0A CN108662208B (en) | 2018-05-30 | 2018-05-30 | Hydraulic control valve with symmetrical structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810542406.0A CN108662208B (en) | 2018-05-30 | 2018-05-30 | Hydraulic control valve with symmetrical structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108662208A true CN108662208A (en) | 2018-10-16 |
| CN108662208B CN108662208B (en) | 2020-08-21 |
Family
ID=63774666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810542406.0A Active CN108662208B (en) | 2018-05-30 | 2018-05-30 | Hydraulic control valve with symmetrical structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108662208B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112902548A (en) * | 2019-11-19 | 2021-06-04 | 英业达科技有限公司 | Cooling device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1182776A (en) * | 1997-09-08 | 1999-03-26 | Kurimoto Shoji Kk | Pressure reduction type reverse flow preventing device |
| CN2339815Y (en) * | 1997-10-07 | 1999-09-22 | 李肇伦 | Super-high-pressure plunger pump one-way valve |
| CN2494462Y (en) * | 2001-06-21 | 2002-06-05 | 青岛弘运机电制造有限公司 | Multifunctional safety valve |
| CN1502834A (en) * | 2002-11-26 | 2004-06-09 | 伊顿公司 | Hydraulically actuated by-pass valve |
| CN203023546U (en) * | 2012-12-28 | 2013-06-26 | 长安大学 | Tee joint |
| CN204852731U (en) * | 2015-07-08 | 2015-12-09 | 福建省海洋阀门科技有限公司 | Double check valve tee bend structure |
-
2018
- 2018-05-30 CN CN201810542406.0A patent/CN108662208B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1182776A (en) * | 1997-09-08 | 1999-03-26 | Kurimoto Shoji Kk | Pressure reduction type reverse flow preventing device |
| CN2339815Y (en) * | 1997-10-07 | 1999-09-22 | 李肇伦 | Super-high-pressure plunger pump one-way valve |
| CN2494462Y (en) * | 2001-06-21 | 2002-06-05 | 青岛弘运机电制造有限公司 | Multifunctional safety valve |
| CN1502834A (en) * | 2002-11-26 | 2004-06-09 | 伊顿公司 | Hydraulically actuated by-pass valve |
| CN203023546U (en) * | 2012-12-28 | 2013-06-26 | 长安大学 | Tee joint |
| CN204852731U (en) * | 2015-07-08 | 2015-12-09 | 福建省海洋阀门科技有限公司 | Double check valve tee bend structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112902548A (en) * | 2019-11-19 | 2021-06-04 | 英业达科技有限公司 | Cooling device |
| CN112902548B (en) * | 2019-11-19 | 2022-11-04 | 英业达科技有限公司 | Cooling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108662208B (en) | 2020-08-21 |
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