CN108413085A - A kind of pressure-relief one-way valve - Google Patents
A kind of pressure-relief one-way valve Download PDFInfo
- Publication number
- CN108413085A CN108413085A CN201810496256.4A CN201810496256A CN108413085A CN 108413085 A CN108413085 A CN 108413085A CN 201810496256 A CN201810496256 A CN 201810496256A CN 108413085 A CN108413085 A CN 108413085A
- Authority
- CN
- China
- Prior art keywords
- chambers
- spool
- mouthfuls
- pressure
- pedestal
- 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.)
- Granted
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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
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
Abstract
The invention discloses a kind of pressure-relief one-way valve, including valve body, plug, spring, spool and pedestal, valve body is divided into A chambers and B chambers by spool, and A mouthfuls, B mouthfuls of valve port being connected with A chambers, B chambers is correspondingly provided on valve body；It is equipped with decompression column towards the acting surface of A chambers on spool, so that the active area of A chambers is less than the active area of B chambers on spool.The valve arrangement is simple, and unidirectional and decompression can be realized in a valve, it is possible to reduce the use of a pressure reducing valve simplifies system, saved cost, is suitable for popularization and application.
Description
Technical field
The invention belongs to valve member fields, and in particular to a kind of to play the role of one-way flow, again in hydraulic system
The pressure-relief one-way valve of depressurization can be played.
Background technology
In certain fluid circuits, unidirectional function was not only needed, but also need the function of depressurizing.Generally use one is unidirectional at present
Valve and a pressure reducing valve are realized to coordinate.
Conventional one-way valve structures are as shown in Figure 1：Including valve body 1, plug 2, spring 3, spool 4, pedestal 5 and check valve
A mouthfuls of two valve ports and B mouthfuls；Spring 3 is under the limitation of plug 2 so that slidable spool 4 pushes down pedestal 5,4 bottom of spool
For the conical surface, after being in close contact with pedestal 5, fluid cannot flow to A mouthfuls from B mouthfuls, B mouthfuls can only be unidirectionally flowed to from A mouthfuls, to realize
The function of fluid one-way flow.Since to act on the effective area on spool of substantially equal for A chambers and B chambers, conventional one-way valve
There is no decompression.If fluid circuit needs to depressurize, need in addition to increase pressure reducing valve.
Invention content
In view of this, can play the role of one-way flow the purpose of the present invention is to provide a kind of but also play decompression
The pressure-relief one-way valve of effect.
In order to achieve the above objectives, the present invention provides the following technical solutions：A kind of pressure-relief one-way valve, including valve body, plug, bullet
Valve body is divided into A chambers and B chambers by spring, spool and pedestal, spool, and the valve port A being connected with A chambers, B chambers is correspondingly provided on valve body
Mouthful, B mouthfuls；It is equipped with decompression column towards the acting surface of A chambers on spool, the active area of A chambers on spool is made to be less than the acting surface of B chambers
Product.
Further, there are Y chambers, decompression column to stretch out pedestal and can be produced relative sliding with pedestal between pedestal and valve body.
Further, valve body is equipped with Y mouthfuls of the actuator epithelium communicated with Y chambers.
Further, decompression column is telescopic structure, and the other end is installed on pedestal.
The beneficial effects of the present invention are：Simple in structure, unidirectional and decompression can be realized in a valve, it is possible to reduce
The use of one pressure reducing valve, simplifies system, has saved cost, is suitable for popularization and application.
Description of the drawings
In order to keep the purpose of the present invention, technical solution and advantageous effect clearer, the present invention provides following attached drawing and carries out
Explanation：
Fig. 1 is conventional one-way valve structural schematic diagram；
Fig. 2 is the structural schematic diagram of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, the preferred embodiment of the present invention is described in detail.
As shown, the pressure-relief one-way valve in the present invention, including valve body 1, plug 2, spring 3, spool 4 and pedestal 5,
In, plug 2 and pedestal 5 are installed in valve body 1, and spring 3 and spool 4 are arranged between plug 2 and pedestal 5, and spool divides valve body
At A chambers and B chambers, A mouthfuls, B mouthfuls of valve port being connected with A chambers, B chambers is correspondingly provided on valve body；Spool 4 can be in fluid or spring 3
It is slided up and down along valve axis direction under effect, spool realizes the one-way flow of fluid by the conical surface thereon with the cooperation of pedestal 5.
Being equipped with towards the acting surface of A chambers on spool makes SA＜ SBDepressurize column 41, wherein SAFor active area (the i.e. A chambers of A chambers on spool
Pressure F is generated to spoolAEffective area SA), SBFor the active areas of B chambers on spool, (i.e. B chambers generate pressure F to spoolB's
Effective area SB)。
Specifically, by increasing decompression column 41 in the A chambers side of spool 4, A chambers can be reduced, pressure F is generated to spoolAIt is effective
Area SAIf the effective area S of B chambersBIt is constant：Work as FB≥FA, spool 4 will move down, and block stream of the fluid from A mouthfuls to B mouthfuls
It is dynamic, B mouthfuls of pressure PBNo longer rise；When in critical condition, PB=PA×SA/SB, due to SA<SB, therefore PB<PA, to realize
Decompression.
That is, when spool 4 is by the pressure F of cavity of resorption (A chambers)AMore than the pressure F of epicoele (B chambers)BWhen, spool 4 moves up,
Fluid can circulate from A mouthfuls to B mouthfuls；With B chamber pressure PBRaising, work as FA=FBWhen, spool 4 starts to move down closing, at this point, B mouthfuls
Pressure PB=PA×SA/SB.When designing spool, as long as SBMore than SA(fluid flows into the effective area S of A mouthfuls of generation pressureALess than stream
Go out the effective area S of B mouthfuls of generation pressureB), then B mouthfuls of pressure PBA mouthfuls of pressure P will be less thanA, to realize subtracting for check valve
Press function.
In the present embodiment, there are Y chambers between pedestal 5 and valve body 1, decompression column 41 stretches out pedestal and can be generated with pedestal relatively sliding
Dynamic, Y chambers are 41 extendable room of decompression column reserved, as long as the flexible end of decompression column 41 does not enter A chambers, you can ensure significant surface
Product SAReduction.
It is corresponding, Y mouthfuls of the actuator epithelium communicated with Y chambers is set on valve body 1.Y mouthfuls of actuator epithelium is releasably from decompression
Column 41 and the pedestal place of being slidably matched leak into fluid, discharge its issuable high pressure, avoid 1 bottom of valve body from being formed closed
Space and cause spool 4 that cannot move down.
Certainly, decompression column also has other forms, such as directly uses telescopic rod telescopic structure, at this point, the two of decompression column
End is installed in respectively on spool 4 and pedestal, and is then not necessarily in Y mouthfuls of setting Y chambers and actuator epithelium between pedestal and valve body 1.
The course of work of the pressure-relief one-way valve is：
Original state, spring 3 is under the limitation of plug 2 so that slidable spool 4 pushes down pedestal 5, and 4 bottom of spool is
The conical surface is in close contact with pedestal 5, and fluid cannot flow to A mouthfuls from B mouthfuls, and B mouthfuls can only be unidirectionally flowed to from A mouthfuls, realizes that fluid is unidirectional
Flow function.
5 internal diameter of pedestal is denoted as m, decompression 41 diameter of column is denoted as n.
When the effective area of A mouthfuls and B mouthfuls generation pressure is essentially identical, B mouthfuls of final pressure PBWith A mouthfuls of pressure PASubstantially
It is identical.And A mouthfuls generate pressure FAEffective area be SA=PI × (m2-n2)/4, and B mouthfuls generate pressure FBEffective area be SB
=PI × m2/ 4, ignore spring force, as B mouthfuls of pressure PB=PA×SA/SB=PA×(m2-n2)/A2When, spool by sealed base,
Fluid cannot flow to B mouthfuls from A mouthfuls again, B mouthfuls of pressure PBIt will not be further added by, as long as SBMore than SAThen B mouthfuls of pressure PBIt will be small
In A mouthfuls of pressure PA, to realize the decompression of check valve.
The 41 diameter dimension n of decompression column on spool 4 is adjusted, then can get different decompressed pressures at B mouthfuls.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (4)
1. valve body is divided into A chambers and B chambers by a kind of pressure-relief one-way valve, including valve body, plug, spring, spool and pedestal, spool,
A mouthfuls, B mouthfuls of valve port being connected with A chambers, B chambers is correspondingly provided on valve body, it is characterised in that：Towards on the acting surface of A chambers on spool
Equipped with decompression column, the active area of A chambers on spool is made to be less than the active area of B chambers.
2. pressure-relief one-way valve according to claim 1, it is characterised in that：There are Y chambers, decompression column to stretch out between pedestal and valve body
Pedestal can simultaneously be produced relative sliding with pedestal.
3. pressure-relief one-way valve according to claim 2, it is characterised in that：Valve body is equipped with the actuator epithelium Y communicated with Y chambers
Mouthful.
4. pressure-relief one-way valve according to claim 1, it is characterised in that：Decompression column is telescopic structure, and the other end is fixed
On pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810496256.4A CN108413085B (en) | 2018-05-22 | 2018-05-22 | Pressure reducing one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810496256.4A CN108413085B (en) | 2018-05-22 | 2018-05-22 | Pressure reducing one-way valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108413085A true CN108413085A (en) | 2018-08-17 |
| CN108413085B CN108413085B (en) | 2020-02-07 |
Family
ID=63140290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810496256.4A Active CN108413085B (en) | 2018-05-22 | 2018-05-22 | Pressure reducing one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108413085B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983018A (en) * | 2021-10-28 | 2022-01-28 | 浙江华巨液压科技有限公司 | One-way pressure reducing valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4172582A (en) * | 1977-04-21 | 1979-10-30 | Rexnord Inc. | Reverse differential holding valve |
| US5775360A (en) * | 1994-08-03 | 1998-07-07 | Kayaba Industry Co., Ltd. | Pressure control valve |
| WO2003042587A1 (en) * | 2001-11-13 | 2003-05-22 | Bosch Rexroth Ag | Seat valve |
| CN101010648A (en) * | 2004-08-26 | 2007-08-01 | 丰田自动车株式会社 | Combined pressure reducing and shut-off valve |
| CN203309215U (en) * | 2013-05-07 | 2013-11-27 | 青岛宏达赛耐尔科技股份有限公司 | Novel plate-type check valve |
| EP3073162A1 (en) * | 2015-03-21 | 2016-09-28 | HS Wroclaw Sp. z o.o. | Valve with damper |
| CN106907367A (en) * | 2017-04-17 | 2017-06-30 | 西华大学 | New Structure Speed Control Valve |
-
2018
- 2018-05-22 CN CN201810496256.4A patent/CN108413085B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4172582A (en) * | 1977-04-21 | 1979-10-30 | Rexnord Inc. | Reverse differential holding valve |
| US5775360A (en) * | 1994-08-03 | 1998-07-07 | Kayaba Industry Co., Ltd. | Pressure control valve |
| WO2003042587A1 (en) * | 2001-11-13 | 2003-05-22 | Bosch Rexroth Ag | Seat valve |
| CN101010648A (en) * | 2004-08-26 | 2007-08-01 | 丰田自动车株式会社 | Combined pressure reducing and shut-off valve |
| CN203309215U (en) * | 2013-05-07 | 2013-11-27 | 青岛宏达赛耐尔科技股份有限公司 | Novel plate-type check valve |
| EP3073162A1 (en) * | 2015-03-21 | 2016-09-28 | HS Wroclaw Sp. z o.o. | Valve with damper |
| CN106907367A (en) * | 2017-04-17 | 2017-06-30 | 西华大学 | New Structure Speed Control Valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983018A (en) * | 2021-10-28 | 2022-01-28 | 浙江华巨液压科技有限公司 | One-way pressure reducing valve |
| CN113983018B (en) * | 2021-10-28 | 2023-08-18 | 浙江三尚智迪科技有限公司 | One-way pressure reducing valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108413085B (en) | 2020-02-07 |
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