CN203614482U - Stacked bidirectional-unidirectional throttling valve - Google Patents
Stacked bidirectional-unidirectional throttling valve Download PDFInfo
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- CN203614482U CN203614482U CN201320632515.4U CN201320632515U CN203614482U CN 203614482 U CN203614482 U CN 203614482U CN 201320632515 U CN201320632515 U CN 201320632515U CN 203614482 U CN203614482 U CN 203614482U
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- valve body
- spool
- overlapping
- valve
- chamber
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Abstract
The utility model discloses a stacked bidirectional-unidirectional throttling valve. The stacked bidirectional-unidirectional throttling valve comprises a valve body which is arranged in the transverse direction, and two unidirectional throttling valves which are identical in structure are symmetrically arranged on the left side and the right side of a central line of the valve body; each unidirectional throttling valve comprises a valve core, a spring and a throttling screw; the position, on the end part of the cavity, of the valve body is provided with a conical structure which is protruded towards the inside of the cavity; the end part of each valve core is of a vertical plane structure. The stacked bidirectional-unidirectional throttling valve is simple in structure and convenient to produce, a good application effect can be realized by slightly modifying the original structure, more production molds are unnecessary to add, and the cost is reduced.
Description
Technical field
The utility model relates to a kind of throttle valve, relates in particular to a kind of overlapping two.
Background technique
Throttle valve is a kind of skeleton symbol flow control valve, and it is while utilizing oil stream by throttle valve, to change the pressure that flow area carrys out adjust flux or changes valve front and back.For one-way throttle valve, in the time of oil stream forward flow, play throttling action, when oil flows when reverse, oil pressure promotes spool, makes spool and valve body formation major path, does not play throttling action, becomes one-way valve.For example CN03255938.0 discloses a kind of overlapping two, it is two one-way throttle valves compositions of symmetrical installation on the horizontal axis of valve body, these two mutual structures of one-way throttle valve and mounting type are identical, are only that installation direction must oppositely, can not equidirectionally be installed.That is to say in the chamber, center line both sides of valve body and respectively fill symmetrically an one-way throttle valve that structure is identical, and valve body is arranged on base plate and is formed, wherein arbitrary one-way throttle valve is made up of valve body, spool, back-up ring, oil sealing, spring, throttling screw and location graduation plate.Its medi-spring is put into throttling screw intermediate cavity, spool packs in the control of valve body, back-up ring is contained in the interior location of being used as of circlip groove of throttling screw, and oil sealing is screwed into valve body by throttling screw after packing in the oil seal groove on throttling screw, and by screw, location graduation plate is installed on the end face of valve body.In the time that fluid passes valve body from bottom to top, this structure, as throttle valve work, is carried out adjust flux by adjusting throttling screw; In the time that fluid passes valve body from top to bottom, this structure is as one-way valve work, and fluid enters the cavity end at spool place by the oil circuit being obliquely installed, make oil circuit unimpeded thereby push to the left and right sides respectively left and right two valve bodies.But, the overlapping two of this structure, in the time working as one-way valve, because the end of spool and the end of spool place cavity are in contact with one another, surface of contact is plane, this just exerts pressure and causes obstruction spool to fluid, and spool can not be moved easily, or the reaction that spool starts is slower.
Model utility content
The technical problems to be solved in the utility model is to provide one can avoid defect of the prior art, makes spool start overlapping two faster when as one-way valve.
For addressing the above problem, a kind of overlapping two of the present utility model, comprises and the valve body of cross setting is provided with symmetrically two one-way throttle valves that structure is identical in the center line left and right sides of valve body; Described one-way throttle valve comprises spool, spring and throttling screw, and axial bore and one end that described spring is put into throttling screw withstand on spool, and spool packs in the chamber of valve body; On described valve body, be provided with the sprue of up/down perforation valve body, this sprue is through the chamber of placing spool in valve body; On described valve body, be also provided with one end from described sprue initial and extend in valve body, place the end in the chamber of spool inclination from runner; The position that is positioned at the end in chamber on described valve body is provided with to the conical structure of chamber internal projection; The end of described spool is vertical plane structure.
Described overlapping two also comprises back-up ring, oil sealing, and described back-up ring is arranged in the circlip groove on described throttling screw, and described oil sealing is arranged in the oil seal groove on described throttling screw.
Two one-way throttle valves of described overlapping two, its separately be positioned at upside or the downside of valve body center line from runner simultaneously.
Two one-way throttle valves of described overlapping two, its separately lay respectively at upside and the downside of valve body center line from runner.
Overlapping two of the present utility model, wherein each one-way throttle valve can be served as one-way valve and throttle valve use, in the time working as one-way valve, fluid is entering valve body from runner, because valve body and spool end contact position are the conical structure of a projection, therefore after this conical structure contacts with spool, between the two, leave space, thereby making fluid be easy to enter into gap exerts pressure to spool, the end of spool is vertical plane structure simultaneously, be subject to horizontal pressure, be swift in response, start fast.Overlapping two of the present utility model, simple in structure, convenient production, can realize good using effect to original structure change is minimum, without increasing more production mould, cost-saving.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment one structural representation;
Fig. 2 is the utility model embodiment two structural representation.
Embodiment
In order to make those skilled in the art person understand better technical solutions of the utility model, below in conjunction with drawings and embodiments, the utility model is described in further detail.
Embodiment one:
As shown in Figure 1, a kind of overlapping two of the present utility model, comprises and the valve body 1 of cross setting is provided with symmetrically two one-way throttle valves 2 that structure is identical in the centre line L left and right sides of valve body 1; Described one-way throttle valve 2 comprises spool 201, spring 202, throttling screw 203, back-up ring 204 and oil sealing 205.
On described valve body 1, be provided with the sprue 102 of up/down perforation valve body, this sprue 102 is through the chamber 101 of the interior placement spool of valve body 1; On described valve body 11, be also provided with one end from described sprue 102 initial and extend to the end in the chamber 101 of placing spool in valve body inclination from runner 103; The position that is positioned at the end in chamber 101 on described valve body 1 is provided with to the conical structure 104 of chamber 101 internal projection; The end of described spool 202 is vertical plane structure.
Described back-up ring 204 is arranged in the circlip groove on described throttling screw 203, and described oil sealing 205 is arranged in the oil seal groove on described throttling screw 203.
Two one-way throttle valves of described overlapping two, its separately be positioned at a side of valve body center line from runner simultaneously.
In this Fig. 1, its runner of the one-way throttle valve in left side is in closed condition, and its runner of the one-way throttle valve on right side is in circulation status.
Embodiment two:
As shown in Figure 2, this embodiment two is with embodiment one difference: two one-way throttle valves of described overlapping two, its separately lay respectively at upside and the downside of valve body center line from runner.
Overlapping two of the present utility model, wherein each one-way throttle valve can be served as one-way valve and throttle valve use, in the time working as one-way valve, fluid is entering valve body from runner, because valve body and spool end contact position are the conical structure of a projection, therefore after this conical structure contacts with spool, between the two, leave space, thereby making fluid be easy to enter into gap exerts pressure to spool, the end of spool is vertical plane structure simultaneously, be subject to horizontal pressure, be swift in response, start fast.Overlapping two of the present utility model, simple in structure, convenient production, can realize good using effect to original structure change is minimum, without increasing more production mould, cost-saving.
Claims (4)
1. an overlapping two, is characterized in that: comprise the valve body of cross setting, be provided with symmetrically two one-way throttle valves that structure is identical in the center line left and right sides of valve body; Described one-way throttle valve comprises spool, spring and throttling screw, and axial bore and one end that described spring is put into throttling screw withstand on spool, and spool packs in the chamber of valve body; On described valve body, be provided with the sprue of up/down perforation valve body, this sprue is through the chamber of placing spool in valve body; On described valve body, be also provided with one end from described sprue initial and extend in valve body, place the end in the chamber of spool inclination from runner; The position that is positioned at the end in chamber on described valve body is provided with to the conical structure of chamber internal projection; The end of described spool is vertical plane structure.
2. overlapping two as claimed in claim 1, it is characterized in that: described overlapping two also comprises back-up ring, oil sealing, described back-up ring is arranged in the circlip groove on described throttling screw, and described oil sealing is arranged in the oil seal groove on described throttling screw.
3. overlapping two as claimed in claim 1 or 2, is characterized in that: two one-way throttle valves of described overlapping two, its separately be positioned at upside or the downside of valve body center line from runner simultaneously.
4. overlapping two as claimed in claim 1 or 2, is characterized in that: two one-way throttle valves of described overlapping two, its separately lay respectively at upside and the downside of valve body center line from runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320632515.4U CN203614482U (en) | 2013-10-14 | 2013-10-14 | Stacked bidirectional-unidirectional throttling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320632515.4U CN203614482U (en) | 2013-10-14 | 2013-10-14 | Stacked bidirectional-unidirectional throttling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614482U true CN203614482U (en) | 2014-05-28 |
Family
ID=50767131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320632515.4U Expired - Fee Related CN203614482U (en) | 2013-10-14 | 2013-10-14 | Stacked bidirectional-unidirectional throttling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614482U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114385A (en) * | 2015-08-14 | 2015-12-02 | 马鞍山唐拓凿岩机械有限公司 | Double-hydraulic-control one-way pressure release valve |
| CN107956902A (en) * | 2017-10-27 | 2018-04-24 | 江西省唯欣高科精密五金有限公司 | Throttle valve |
| CN110671519A (en) * | 2019-10-12 | 2020-01-10 | 邵玉强 | Tubular flow control valve |
-
2013
- 2013-10-14 CN CN201320632515.4U patent/CN203614482U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114385A (en) * | 2015-08-14 | 2015-12-02 | 马鞍山唐拓凿岩机械有限公司 | Double-hydraulic-control one-way pressure release valve |
| CN107956902A (en) * | 2017-10-27 | 2018-04-24 | 江西省唯欣高科精密五金有限公司 | Throttle valve |
| CN107956902B (en) * | 2017-10-27 | 2024-05-03 | 江西省唯欣高科油压科技股份有限公司 | Throttle valve |
| CN110671519A (en) * | 2019-10-12 | 2020-01-10 | 邵玉强 | Tubular flow control 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: 20140528 Termination date: 20151014 |
|
| EXPY | Termination of patent right or utility model |