CN104728470A - Bypath valve - Google Patents
Bypath valve Download PDFInfo
- Publication number
- CN104728470A CN104728470A CN201510138640.3A CN201510138640A CN104728470A CN 104728470 A CN104728470 A CN 104728470A CN 201510138640 A CN201510138640 A CN 201510138640A CN 104728470 A CN104728470 A CN 104728470A
- Authority
- CN
- China
- Prior art keywords
- valve body
- spool
- hole
- bypass valve
- lining
- 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.)
- Pending
Links
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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
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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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a bypath valve which comprises a valve body, a bush, a lock nut and a valve element, wherein the valve body comprises a through hole which is formed in the axial direction of the valve body and a first oil-way pipeline and a second oil-way pipeline which are located on the side wall of the valve body and connected with two cavities of an actuator cylinder respectively; the bush is arranged in the through hole of the valve body and comprises an inner cavity which is formed in the axial direction of the bush, and a first oil-way hole and a second oil-way hole are formed in the bush and correspond to the first oil-way pipeline and the second oil-way pipeline of the valve body respectively; the lock nut is arranged on the end portion of the bush and located in the through hole of the valve body; the valve element passes through the lock nut and the inner cavity of the bush, the two ends of the valve element are located at the outer side of the valve body, the valve element can move relative to the bush, a groove is formed in the valve element in the circumferential direction, and the width of the groove is greater than the distance between the first oil-way hole and the second oil-way hole. The bypath valve has the advantages of being good in sealing property, simple in opening mode, smaller in size, and suitable for being used on a system which is compact in space structure.
Description
Technical field
The present invention relates to a kind of fluid control apparatus, be specifically related to a kind of bypass valve.
Background technique
Bypass valve is the fluid control apparatus in hydraulic system, is arranged between pressurized strut two cavity oil road.When hydraulic work system, bypass valve is in closed condition, and fluid cannot directly link up pressurized strut two chamber by bypass valve; When hydraulic system does not work, but when needing piston rod movement, can bypass valve be opened, allow pressurized strut two cavity oil liquid directly be linked up by bypass valve, to promote piston rod movement.
Bypass valve of the prior art adopts clearance seal, and cannot reach zero leakage, leakage rate is relatively large.
Require strict to leakage rate at some missile armament, carrier rockets etc., the hydraulic system that reliability requirement is very high, the bypass valve of prior art uses and is restricted.
Summary of the invention
The object of the present invention is to provide a kind of bypass valve, opening ways is simple, easy to operate, and sealing is good, can reach the requirement of zero leakage.
In order to achieve the above object, the present invention is achieved through the following technical solutions: a kind of bypass valve, is characterized in, comprises:
Valve body, described valve body comprises one along its through hole axially arranged and be positioned at the first oil line pipe and the second oil line pipe that body wall connect respectively pressurized strut two chamber;
Lining, be arranged in the through hole of valve body, the axial length of described lining is less than the axial length of described valve body, described lining comprises an inner chamber axially arranged along it, described lining is provided with the first oil circuit hole and the second oil circuit hole, the first oil line pipe respectively on corresponding valve body and the second oil line pipe;
Locking nut, is arranged on the end of lining, and is positioned at the through hole of valve body;
Spool, through the inner chamber of described locking nut and lining, and the two ends of described spool lay respectively at the outside of valve body, described spool can move relative to lining, described spool is along the circumferential direction provided with groove, the width of described groove is greater than the distance between the first oil circuit hole and the second oil circuit hole, move axially described spool, the corresponding first oil circuit hole of groove and the second oil circuit hole, first oil line pipe, the first oil circuit hole, groove, the second oil circuit hole and the second oil line pipe are interconnected, to form the fluid path between pressurized strut two chamber.
Bypass valve comprises a circlip further, and described locking nut is fixedly connected with described valve body by circlip.
Described spool end is respectively equipped with described poppet shaft to the first vertical pin hole and the second pin hole, and described first pin hole is positioned at the spool end near locking nut side.
When bypass valve is in closed condition, described second pin hole is positioned at outside valve body, and when described bypass valve is in opening state, described first pin hole is positioned at outside valve body.
Bypass valve comprises one first dust ring and the second dust ring further, and described first dust ring is arranged between valve body and spool, and described second dust ring is arranged between locking nut and spool.
Bypass valve comprises one first black box and several the second black boies further, is separately positioned between lining and spool.
The first described black box comprises one first seal ring and a back-up ring, and the second described black box comprises the second seal ring.
The first described seal ring and the second seal ring are O RunddichtringO.
The first described seal ring and the second seal ring are I type sealing configuration.
Described spool end is provided with outside thread, extracts frock for connecting, so that described spool moves axially along lining.
A kind of bypass valve of the present invention compared with prior art has the following advantages: the I type sealing configuration adopting O RunddichtringO, and favorable sealing property, can reach the requirement of zero leakage; Flowed by the fluid realizing pressurized strut two chamber that moves axially of spool, opening ways is simple, easy to operate; Size of the present invention is less, lightweight, and compact structure is easy to assemble, is adapted at the compact system of spatial structure uses.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of a kind of bypass valve of the present invention.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
As described in Figure 1, a kind of bypass valve, comprises: valve body 10, and described valve body 10 comprises one along its through hole axially arranged and be positioned at the first oil line pipe 101 and the second oil line pipe 102 valve body 10 sidewall connecting respectively pressurized strut two chamber, lining 20, be arranged in the through hole of valve body 10, the mode of interference fit is adopted to be pressed into valve body 10, the axial length of described lining 20 is less than the axial length of described valve body 10, described lining 20 comprises an inner chamber axially arranged along it, described lining 20 is provided with the first oil circuit hole 201 and the second oil circuit hole 202, the first oil line pipe 101 and the second oil line pipe 102 respectively on corresponding valve body 10, locking nut 30, is arranged on the end of lining 20, and is positioned at the through hole of valve body 10, spool 40, through the inner chamber of described locking nut 30 and lining 20, and the two ends of described spool 40 lay respectively at the outside of valve body 10, it is Spielpassung between spool 40 and lining 20, namely spool 40 can move relative to lining 20, described spool 40 is along the circumferential direction provided with groove 401, the width of described groove 401 is greater than the distance between the first oil circuit hole 201 and the second oil circuit hole 202, move axially described spool 40, corresponding first oil circuit hole 201 and the second oil circuit hole 202 of groove 401, make the first oil line pipe 101, first oil circuit hole 201, groove 401, second oil circuit hole 202 and the second oil line pipe 102 are interconnected, to form the fluid path between pressurized strut two chamber.
In the present invention, locking nut 30 is connected with valve body 10 by screw thread, and in order to better fixing and locking nut, in preferred embodiment of the present invention, bypass valve also comprises a circlip 50, for fixing and locking nut 30.Fix when opening or close for the ease of bypass valve, first pin hole 402 and second pin hole 403 axially vertical with described spool 40 is respectively equipped with in spool 40 end, and described first pin hole 402 is positioned at spool 40 end near locking nut 30 side, and when described bypass valve is in closed condition, described second pin hole 403 is positioned at outside valve body 10, when described bypass valve is in opening state, described first pin hole 402 is positioned at outside valve body 10.
In order to better realize the object of zero leakage of the present invention, bypass valve also comprises one first dust ring 60, second dust ring 70, first black box and several the second black boies, described first dust ring 60 is arranged between valve body 10 and spool 40, described second dust ring 70 is arranged between locking nut 30 and spool 40, and the first dust ring 60 and the second dust ring 70 enter for preventing fifth wheel; First black box and several the second black boies are separately positioned between lining 20 and spool 40.Preferably, the second black box has two, and the first black box is arranged between two the second black boies, and the groove 401 of spool 40 is between the first black box and one of them the second black box.Wherein, two the second black boies be used for spool 40 to external sealed, the first black box is used for the sealing of pressurized strut two cavity oil liquid.First black box comprises one first seal ring 801 and a back-up ring 802 in the preferred embodiment, and the second described black box comprises the second seal ring 901.Preferably, the first seal ring 801 and the second seal ring 901 are O RunddichtringO.First seal ring 801 and the second seal ring 901 are I type sealing configuration in the preferred embodiment.
Conveniently pull-out or propelling spool 40, in preferred embodiment of the present invention, spool 40 end is provided with outside thread, extracts frock for connecting, and makes bypass valve be in the state of opening or closing.
When hydraulic work system, bypass valve must be in closed condition, connect one by the outside thread on spool 40 extract frock or directly use hand propulsion spool 40, until the second pin hole 403 on spool 40 exposes valve body, cotter pin be placed in the second pin hole 403, namely bypass valve is in closed condition; When hydraulic system does not work, but when needing piston rod movement, bypass valve must be in opening state, connect one by the outside thread on spool 40 extract frock or directly use hand propulsion spool 40, until the first pin hole 402 on spool 40 exposes valve body, cotter pin be placed in the first pin hole 402, namely bypass valve is in opening state.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a bypass valve, is characterized in that, comprises:
Valve body, described valve body comprises one along its through hole axially arranged and be positioned at the first oil line pipe and the second oil line pipe that body wall connect respectively pressurized strut two chamber;
Lining, be arranged in the through hole of valve body, the axial length of described lining is less than the axial length of described valve body, described lining comprises an inner chamber axially arranged along it, described lining is provided with the first oil circuit hole and the second oil circuit hole, the first oil line pipe respectively on corresponding valve body and the second oil line pipe;
Locking nut, is arranged on the end of lining, and is positioned at the through hole of valve body;
Spool, through the inner chamber of described locking nut and lining, and the two ends of described spool lay respectively at the outside of valve body, described spool can move relative to lining, described spool is along the circumferential direction provided with groove, the width of described groove is greater than the distance between the first oil circuit hole and the second oil circuit hole, move axially described spool, the corresponding first oil circuit hole of groove and the second oil circuit hole, first oil line pipe, the first oil circuit hole, groove, the second oil circuit hole and the second oil line pipe are interconnected, to form the fluid path between pressurized strut two chamber.
2. bypass valve as claimed in claim 1, it is characterized in that, comprise a circlip further, described locking nut is fixedly connected with described valve body by circlip.
3. bypass valve as claimed in claim 1, it is characterized in that, described spool end is respectively equipped with described poppet shaft to the first vertical pin hole and the second pin hole, and described first pin hole is positioned at the spool end near locking nut side.
4. bypass valve as claimed in claim 3, it is characterized in that, when described bypass valve is in closed condition, described second pin hole is positioned at outside valve body, and when described bypass valve is in opening state, described first pin hole is positioned at outside valve body.
5. bypass valve as claimed in claim 1, it is characterized in that, comprise one first dust ring and the second dust ring further, described first dust ring is arranged between valve body and spool, and described second dust ring is arranged between locking nut and spool.
6. bypass valve as claimed in claim 1, is characterized in that, comprise one first black box and several the second black boies further, be separately positioned between lining and spool.
7. bypass valve as claimed in claim 6, it is characterized in that, the first described black box comprises one first seal ring and a back-up ring, and the second described black box comprises the second seal ring.
8. bypass valve as claimed in claim 7, it is characterized in that, the first described seal ring and the second seal ring are O RunddichtringO.
9. bypass valve as claimed in claim 7, it is characterized in that, the first described seal ring and the second seal ring are I type sealing configuration.
10. bypass valve as claimed in claim 1, it is characterized in that, described spool end is provided with outside thread, extracts frock for connecting, so that described spool moves axially along lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510138640.3A CN104728470A (en) | 2015-03-27 | 2015-03-27 | Bypath valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510138640.3A CN104728470A (en) | 2015-03-27 | 2015-03-27 | Bypath valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104728470A true CN104728470A (en) | 2015-06-24 |
Family
ID=53452658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510138640.3A Pending CN104728470A (en) | 2015-03-27 | 2015-03-27 | Bypath valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104728470A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644456A (en) * | 2018-05-16 | 2018-10-12 | 芜湖市艾德森自动化设备有限公司 | A kind of high sealing anti-corrosion valve rod |
| CN110594471A (en) * | 2019-09-03 | 2019-12-20 | 海力达汽车科技有限公司 | Can reduce solenoid valve body subassembly of processing degree of difficulty |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4522373A (en) * | 1983-09-06 | 1985-06-11 | Clark Equipment Company | Valve detent |
| CN102853116A (en) * | 2012-09-25 | 2013-01-02 | 四川制动科技股份有限公司 | Push-pull pressure control valve |
| CN203730734U (en) * | 2014-03-19 | 2014-07-23 | 安徽江淮汽车股份有限公司 | Double-clutch automatic gearbox hydraulic control module switch electromagnetic valve |
| CN203925276U (en) * | 2014-05-13 | 2014-11-05 | 江苏贵鑫石油装备有限公司 | The anti-lost assembly of the control flow of helicoid hydraulic motor |
-
2015
- 2015-03-27 CN CN201510138640.3A patent/CN104728470A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4522373A (en) * | 1983-09-06 | 1985-06-11 | Clark Equipment Company | Valve detent |
| CN102853116A (en) * | 2012-09-25 | 2013-01-02 | 四川制动科技股份有限公司 | Push-pull pressure control valve |
| CN203730734U (en) * | 2014-03-19 | 2014-07-23 | 安徽江淮汽车股份有限公司 | Double-clutch automatic gearbox hydraulic control module switch electromagnetic valve |
| CN203925276U (en) * | 2014-05-13 | 2014-11-05 | 江苏贵鑫石油装备有限公司 | The anti-lost assembly of the control flow of helicoid hydraulic motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644456A (en) * | 2018-05-16 | 2018-10-12 | 芜湖市艾德森自动化设备有限公司 | A kind of high sealing anti-corrosion valve rod |
| CN110594471A (en) * | 2019-09-03 | 2019-12-20 | 海力达汽车科技有限公司 | Can reduce solenoid valve body subassembly of processing degree of difficulty |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150624 |
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| RJ01 | Rejection of invention patent application after publication |