CN201731118U - Plug-in mounting type hydraulic-control one-way valve - Google Patents
Plug-in mounting type hydraulic-control one-way valve Download PDFInfo
- Publication number
- CN201731118U CN201731118U CN2010202469001U CN201020246900U CN201731118U CN 201731118 U CN201731118 U CN 201731118U CN 2010202469001 U CN2010202469001 U CN 2010202469001U CN 201020246900 U CN201020246900 U CN 201020246900U CN 201731118 U CN201731118 U CN 201731118U
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- CN
- China
- Prior art keywords
- valve
- plug
- bush
- spool
- hydraulic
- 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.)
- Expired - Fee Related
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- Check Valves (AREA)
Abstract
The utility model provides a plug-in mounting type hydraulic-control one-way valve which comprises a valve body, a spiral plug, a valve bush, a piston, a valve base and a valve core, wherein the valve core is arranged in the middle of the valve body, the valve base is arranged at the end part of the valve core, the valve bush and the spiral plug are mounted in sequence from inside to outside at the outer end of the valve core, a sealing retainer ring is arranged on the outer ring of the valve bush, the piston is arranged in the inner cavity of the valve bush, a spring is arranged on one side of the valve core, a hydraulic port valve bush is arranged on the outer layer of the valve core, and a seal ring is arranged between the hydraulic port valve bush and the valve core. The utility model has the benefits that: s flexible seal structure is added to the tapered port of the valve base, so as to achieve zero leakage of the valve port; the one-way valve has the automatic compensation function which greatly increases the durability; by the adoption of the plug-in mounting structure, a plurality of hydraulic loops are integrated in the same one valve body, so as to achieve the purpose of automatic test with the electrical system through the hydraulic remote control; and the one-way valve can adapt to water, oil, emulsified solution and other media and can bear ultra-high pressure (up to 80 MPa) through the annular supporting surface structure.
Description
Technical field
The utility model relates to a kind of Pilot operated check valve, relates in particular to a kind of plug-in type Pilot operated check valve.
Background technique
The seal form that generally adopts in the present all kinds of hydraulic pressure test mainly comprises: (1) uses the aciculiform stop valve to control the turnover of highly pressurised liquid; (2) adopt the rubber seal cushion to realize the sealing of hydraulic pressure; (3) adopt the ring surface of steel to carry out the sealing of high pressure.More than several seal form ubiquities difficulty be installed, close that effort, sealing gasket easily wear out, sealing surface poor durability, poor sealing, can not realize the shortcomings such as automatic control of test stand.
The model utility content
At above defective, the purpose of this utility model provides a kind of valve port zero leakage, raising durability degree, sealing effect plug-in type Pilot operated check valve preferably of realizing, to solve many deficiencies of prior art.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of plug-in type Pilot operated check valve comprises valve body, screw plug, valve pocket, piston, valve seat, spool, and spool is installed at the valve body middle part, and the spool end is provided with valve seat, and described spool outer end is installed valve pocket and screw plug from inside to outside successively, and this valve pocket outer ring is provided with Sealing shield ring; Be provided with piston in the inboard cavity of described valve pocket, described spool one side is provided with spring, and spool outer is provided with hydraulic fluid mouth valve pocket, is provided with seal ring between described hydraulic fluid mouth valve pocket and the spool.
The beneficial effect of plug-in type Pilot operated check valve described in the utility model is: by valve seat awl mouthful increase soft sealing structure, can make valve port realize zero leakage; Having automatic compensation function improves durability degree greatly; Adopt the plug-in type structure, some oil hydraulic circuits are integrated in the valve body, can realize from dynamic test with electrical system by the hydraulic pressure telecontrol; Can adapt to multimediums such as water, oil, emulsified liquid, adopt the annular support surface structure can bear the 80Mpa hyperpressure.
Description of drawings
According to embodiment and accompanying drawing the utility model is described in further detail below.
Fig. 1 is the structural representation of the described plug-in type Pilot operated check valve of the utility model embodiment.
Among the figure:
1, valve body; 2, screw plug; 3, valve pocket; 4, piston; 5, Sealing shield ring; 6, separation sleeve; 7, valve seat; 8, spool; 9, steel wire key; 10, spring; 11, hydraulic fluid mouth valve pocket; 12, seal ring; 13, steel ball; 14, set screw.
Embodiment
As shown in Figure 1, plug-in type Pilot operated check valve described in the utility model, comprise valve body 1, screw plug 2, valve pocket 3, piston 4, separation sleeve 6, valve seat 7, spool 8, spool 8 is installed at described valve body 1 middle part, these spool 8 ends are provided with valve seat 7, spool 8 outer ends are installed valve pocket 3 and screw plug 2 from inside to outside successively, and these valve pocket 3 outer rings are provided with Sealing shield ring 5; Be provided with piston 4 in the described valve pocket 3 inboard cavitys, these piston 4 opposite sides are connected separation sleeve 6, the upside valve component that is connected with valve seat 7 is provided with steel wire key 9, described spool 8 one sides are provided with spring 10, spool 8 skins that are positioned at air scoop one side are provided with hydraulic fluid mouth valve pocket 11, be provided with seal ring 12 between described hydraulic fluid mouth valve pocket 11 and the spool 8, by set screw 14 steel ball 13 be set between described valve pocket 3 and the screw plug 2.Valve component adopts stainless steel manufacturing main valve to be used for antirust, valve seat adopt polyoxymethylene make and wear-resisting, intensity is high, automatically compensate for wear, ultrahigh pressure inserts the A chamber of valve body 1 upside in hydraulic pressure test, by spring 10 pressed spools 8 and act on the valve seat 7 and set up seal action; By provide pressure to promote piston 4 to hydraulic control mouth K, overcome spring 10 and A chamber hydraulic coupling moving valve core 8 again, the A cavity pressure is flowed to the B chamber of valve body 8 downsides; Piston 4 is 1: 4 with the area ratio of spool 8 annular port, also can open release easily when there is elevated pressures in liquid entering hole; If high pressure can be realized from the B chamber to the mobile resistance that then only need back down spring 10 in A chamber.
Claims (1)
1. plug-in type Pilot operated check valve, comprise valve body (1), screw plug (2), valve pocket (3), piston (4), valve seat (7), spool (8), spool (8) is installed at valve body (1) middle part, spool (8) end is provided with valve seat (7), it is characterized in that: described spool (8) outer end is installed valve pocket (3) and screw plug (2) from inside to outside successively, and this valve pocket (3) outer ring is provided with Sealing shield ring (5); Be provided with piston (4) in the inboard cavity of described valve pocket (3), described spool (8) one sides are provided with spring (10), and spool (8) skin is provided with hydraulic fluid mouth valve pocket (11), is provided with seal ring (12) between described hydraulic fluid mouth valve pocket (11) and the spool (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202469001U CN201731118U (en) | 2010-07-05 | 2010-07-05 | Plug-in mounting type hydraulic-control one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202469001U CN201731118U (en) | 2010-07-05 | 2010-07-05 | Plug-in mounting type hydraulic-control one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201731118U true CN201731118U (en) | 2011-02-02 |
Family
ID=43522275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202469001U Expired - Fee Related CN201731118U (en) | 2010-07-05 | 2010-07-05 | Plug-in mounting type hydraulic-control one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201731118U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191944A (en) * | 2011-05-09 | 2011-09-21 | 巨隆集团芜湖兴隆液压有限公司 | Inserted medium flow upright post hydraulic control one-way valve |
| CN103498825A (en) * | 2013-10-12 | 2014-01-08 | 上海新跃仪表厂 | Zero leakage inserting installation hydraulic control one-way valve |
-
2010
- 2010-07-05 CN CN2010202469001U patent/CN201731118U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191944A (en) * | 2011-05-09 | 2011-09-21 | 巨隆集团芜湖兴隆液压有限公司 | Inserted medium flow upright post hydraulic control one-way valve |
| CN103498825A (en) * | 2013-10-12 | 2014-01-08 | 上海新跃仪表厂 | Zero leakage inserting installation hydraulic control one-way valve |
| CN103498825B (en) * | 2013-10-12 | 2016-01-06 | 上海新跃仪表厂 | Zero leakage plug-in type pilot controlled check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20130705 |