CN205715028U - A kind of super-pressure hydraulic control check valve - Google Patents
A kind of super-pressure hydraulic control check valve Download PDFInfo
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- CN205715028U CN205715028U CN201620361441.9U CN201620361441U CN205715028U CN 205715028 U CN205715028 U CN 205715028U CN 201620361441 U CN201620361441 U CN 201620361441U CN 205715028 U CN205715028 U CN 205715028U
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Abstract
This utility model relates to a kind of super-pressure hydraulic control check valve, including valve rod, spring, valve body and matrix.In this utility model, valve body is integral type structure, bearing capacity is higher, improve service life, and reduce machining accuracy and assembly difficulty, avoid tradition hydraulic control one-way valve leakage point more and be unfavorable for the defect that ultra-high voltage environment uses, cylindrical projection can directly be inserted on the interface of load and pass through seal ring seal, further reduce leakage point when supertension uses, the truncated cone changeover portion made respectively on spool and oil-out and truncated cone seal section, the two seals firmly for face contact type, reliability is higher, overall structure in valve body is simple, be conducive to life-time service, and when maintenance, matrix is pulled down and i.e. other parts can be taken apart, install and safeguard very convenient.
Description
Technical field
This utility model belongs to super-pressure hydraulic control check valve construction applications, especially a kind of super-pressure hydraulic control check valve.
Background technology
Hydraulic control one-way valve be dependent on control fluid pressure, the valve of check valve reverse circulated can be made, its common structure include valve body,
Spool, spring and push rod, push rod is arranged on the side of body cavity body, and opposite side installs spool, the elastic force of spring by spring
In the fluid import made in the end of spool is withstood on cavity.When normally working, push rod is away from spool, so fluid is from oil-feed
After mouth enters, making spool overcome the elastic force of spring, make spool move to the right, make fluid import open, fluid is on valve body
Oil-out flows out, and when oil circuit control hydraulic fluid port enters control fluid, fluid promotes the piston of push rod end, makes push rod move right
And spool is promoted to the opposite side of cavity, now fluid import is opened, and fluid can flow into cavity and by oil-in stream from oil-out
Go out, be achieved in that the reverse flow of fluid.Said structure there is problems in that 1. oil-outs must use extra joint
Can connect, assembling complexity, and add the leakage point of medium, need to use special joint when supertension uses, improve
Cost, and be not durable；2. in the cavity of valve body, push rod is installed, the structure complexity of inside, stablizing of use certainly will be increased
Property and service life reduction.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that simple in construction, easy of use and reliable and stable
Plant super-pressure hydraulic control check valve.
This utility model adopts the technical scheme that:
A kind of super-pressure hydraulic control check valve, it is characterised in that: include valve rod, spring, valve body and matrix, a side end face of matrix
Make a groove, be embedded in a side end of described valve body in this groove, in this valve body one side end, make a sliding sleeve chamber, at valve body
End side in make a valve-rod cavity, valve-rod cavity is coaxial with sliding sleeve chamber, and valve-rod cavity one side end connects and it with sliding sleeve chamber
Diameter is less than sliding sleeve chamber diameter at this, and valve-rod cavity end side is positioned at the end side surface of valve body and makes oil-out,
Sliding sleeve intracavity near matrix seals setting-in one sliding sleeve that slides, and arranges a valve rod extended to valve-rod cavity on sliding sleeve, and this valve rod is stretched
The end outer rim going out oil-out seals laminating with oil-out inner edge, and the stem diameter in valve-rod cavity is less than the diameter of valve-rod cavity,
The valve rod outer rim pocketed springs of sliding sleeve intracavity, this spring one side end top is pressed in the end face of sliding sleeve, the top, other end end of this spring
Pressing on the valve body of end, sliding sleeve chamber in this place, described valve rod stretches into the end of groove and installs the piston that can seal slip in groove,
Retention gap between the end face that sliding sleeve is relative with piston, makes an opening in body end side, this opening connect with groove and
Its diameter, less than the diameter of groove, is made an oil-in connected with sliding sleeve chamber on valve body, is made a connection sliding sleeve on sliding sleeve
The restriction in gap between chamber and sliding sleeve and piston.
And, described valve rod stretches out the end of oil-out and makes the diameter spool 1 more than valve rod, this spool and the junction of valve rod
Make truncated cone changeover portion, make in oil-out inner edge with truncated cone changeover portion seal against each other laminating truncated cone seal
Section..
And, the end side of described valve body makes a cylindrical projection, and the end face of this cylindrical projection makes oil-out, and this is fuel-displaced
Fitting with spool outer fringe seal in mouth inner edge, the outer rim in cylindrical projection is set with a sealing ring.
Advantage of the present utility model and good effect be:
In this utility model, valve body is integral type structure, and bearing capacity is higher, improves service life, and reduces processing
Precision and assembly difficulty, it is to avoid traditional hydraulic control one-way valve leakage point is more and is unfavorable for the defect that ultra-high voltage environment uses, cylinder
Projection can directly be inserted on the interface of load and by seal ring seal, further reduce leakage point when supertension uses,
The truncated cone changeover portion made respectively on spool and oil-out and truncated cone seal section, the two seals firmly for face contact type, can
Higher by property, overall structure in valve body is simple, beneficially life-time service, and when maintenance, and being pulled down by matrix i.e. can be by
Other parts are taken apart, install and safeguard very convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with embodiment, further illustrating this utility model, following embodiment is illustrative, is not determinate,
Protection domain of the present utility model can not be limited with following embodiment.
A kind of super-pressure hydraulic control check valve, as it is shown in figure 1, innovation of the present utility model is: include valve rod 7, spring 8, valve
Body 4 and matrix 14, a side end face of matrix is made a groove 15, is embedded in made the dashing forward of a side end of described valve body in this groove
Play 16, make a sliding sleeve chamber 6 in this valve body one side end, in the end side of valve body, make a valve-rod cavity 18, valve-rod cavity
Coaxial with sliding sleeve chamber, valve-rod cavity one side end connects with sliding sleeve chamber and its diameter is less than sliding sleeve chamber diameter at this, and valve-rod cavity is another
One side end is positioned at the end side surface of valve body and makes oil-out 19, and the sliding sleeve intracavity near matrix seals slip setting-in one
Sliding sleeve 9, arranges the valve rod extended to valve-rod cavity on sliding sleeve, and this valve rod stretches out end outer rim 20 and the oil-out inner edge of oil-out
Sealing laminating, the stem diameter in valve-rod cavity is less than the diameter of valve-rod cavity, at the valve rod outer rim pocketed springs of sliding sleeve intracavity, and should
Spring one side end top is pressed in the end face of sliding sleeve, and the top, other end end of this spring is pressed on the valve body 17 of end, sliding sleeve chamber in this place,
Described valve rod stretches into the end of groove and installs the piston 12 that can seal slip in groove, protects between the end face that sliding sleeve is relative with piston
Staying gap 11, make an opening 13 in body end side, this opening connects with groove and its diameter is less than the diameter of groove,
Valve body is made an oil-in 5 connected with sliding sleeve chamber, between sliding sleeve being made between a connection sliding sleeve chamber and sliding sleeve and piston
The restriction 10 of gap.
In the present embodiment, described valve rod stretches out the end of oil-out and makes the diameter spool 1 more than valve rod, this spool and valve rod
Truncated cone changeover portion is made in junction, makes in oil-out inner edge and seals against each other the truncated cone of laminating with truncated cone changeover portion
Seal section.The end side of described valve body makes a cylindrical projection 3, and the end face of this cylindrical projection makes oil-out, and this is fuel-displaced
Fitting with spool outer fringe seal in mouth inner edge, the outer rim in cylindrical projection is set with a sealing ring 2.All parts all use 316 stainless
Steel, improves service life.
When this utility model uses:
1., when oil-in (A) enters supertension fluid, fluid flows in the gap between sliding sleeve and piston from restriction, and promotes
Sliding sleeve moves to oil-out direction, and now spool departs from oil-out, makes fluid flow out from oil-out (B) place.
2. oil-out (B) is in supertension state, and spool is extruded and be in closed state, hydraulic control one-way valve by supertension fluid
Enter supertension packing state.
3. opening (X) enters and controls fluid and make piston driving valve rod and valve core movement, and now fluid can be entered by oil-out (B)
Enter, and flowed out by oil-in (A).
In this utility model, valve body is integral type structure, and bearing capacity is higher, improves service life, and reduces processing
Precision and assembly difficulty, it is to avoid traditional hydraulic control one-way valve leakage point is more and is unfavorable for the defect that ultra-high voltage environment uses, cylinder
Projection can directly be inserted on the interface of load and by seal ring seal, further reduce leakage point when supertension uses,
The truncated cone changeover portion made respectively on spool and oil-out and truncated cone seal section, the two seals firmly for face contact type, can
Higher by property, overall structure in valve body is simple, beneficially life-time service, and when maintenance, and being pulled down by matrix i.e. can be by
Other parts are taken apart, install and safeguard very convenient.
Claims (3)
1. a super-pressure hydraulic control check valve, it is characterised in that: include valve rod, spring, valve body and matrix, a side of matrix
A groove is made in face, is embedded in a side end of described valve body, makes a sliding sleeve chamber, at valve in this valve body one side end in this groove
Making a valve-rod cavity in the end side of body, valve-rod cavity is coaxial with sliding sleeve chamber, valve-rod cavity one side end connect with sliding sleeve chamber and
Its diameter is less than sliding sleeve chamber diameter at this, and valve-rod cavity end side is positioned at the end side surface of valve body and makes oil-out,
Sliding sleeve intracavity near matrix seals setting-in one sliding sleeve that slides, and arranges a valve rod extended to valve-rod cavity on sliding sleeve, and this valve rod is stretched
The end outer rim going out oil-out seals laminating with oil-out inner edge, and the stem diameter in valve-rod cavity is less than the diameter of valve-rod cavity,
The valve rod outer rim pocketed springs of sliding sleeve intracavity, this spring one side end top is pressed in the end face of sliding sleeve, the top, other end end of this spring
Pressing on the valve body of end, sliding sleeve chamber in this place, described valve rod stretches into the end of groove and installs the piston that can seal slip in groove,
Retention gap between the end face that sliding sleeve is relative with piston, makes an opening in body end side, this opening connect with groove and
Its diameter, less than the diameter of groove, is made an oil-in connected with sliding sleeve chamber on valve body, is made a connection sliding sleeve on sliding sleeve
The restriction in gap between chamber and sliding sleeve and piston.
A kind of super-pressure hydraulic control check valve the most according to claim 1, it is characterised in that: described valve rod stretches out oil-out
The diameter spool 1 more than valve rod is made in end, and truncated cone changeover portion is made, in oil-out in the junction of this spool and valve rod
Edge is made and is sealed against each other the truncated cone seal section of laminating with truncated cone changeover portion.
A kind of super-pressure hydraulic control check valve the most according to claim 2, it is characterised in that: the end side of described valve body
Making a cylindrical projection, the end face of this cylindrical projection makes oil-out, and fitting with spool outer fringe seal in this oil-out inner edge, is justifying
The outer rim of post projection is set with a sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620361441.9U CN205715028U (en) | 2016-04-25 | 2016-04-25 | A kind of super-pressure hydraulic control check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620361441.9U CN205715028U (en) | 2016-04-25 | 2016-04-25 | A kind of super-pressure hydraulic control check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205715028U true CN205715028U (en) | 2016-11-23 |
Family
ID=57293553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620361441.9U Active CN205715028U (en) | 2016-04-25 | 2016-04-25 | A kind of super-pressure hydraulic control check valve |
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| Country | Link |
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| CN (1) | CN205715028U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606250A (en) * | 2017-09-07 | 2018-01-19 | 上海空间推进研究所 | A kind of check valve for pneumatic booster |
| CN109539323A (en) * | 2018-12-06 | 2019-03-29 | 华帝股份有限公司 | Nozzle adjusting device and gas cooking utensils of adaptable multiple air supply |
| CN111467697A (en) * | 2020-04-29 | 2020-07-31 | 重庆万州三峡外科医院有限公司 | Isolation suit respiratory support device |
-
2016
- 2016-04-25 CN CN201620361441.9U patent/CN205715028U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606250A (en) * | 2017-09-07 | 2018-01-19 | 上海空间推进研究所 | A kind of check valve for pneumatic booster |
| CN109539323A (en) * | 2018-12-06 | 2019-03-29 | 华帝股份有限公司 | Nozzle adjusting device and gas cooking utensils of adaptable multiple air supply |
| CN111467697A (en) * | 2020-04-29 | 2020-07-31 | 重庆万州三峡外科医院有限公司 | Isolation suit respiratory support device |
| CN111467697B (en) * | 2020-04-29 | 2021-03-23 | 重庆万州三峡外科医院有限公司 | Isolation suit respiratory support device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |