CN200968217Y - Liquid-controlled non-return valve - Google Patents
Liquid-controlled non-return valve Download PDFInfo
- Publication number
- CN200968217Y CN200968217Y CN 200620140007 CN200620140007U CN200968217Y CN 200968217 Y CN200968217 Y CN 200968217Y CN 200620140007 CN200620140007 CN 200620140007 CN 200620140007 U CN200620140007 U CN 200620140007U CN 200968217 Y CN200968217 Y CN 200968217Y
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- CN
- China
- Prior art keywords
- valve
- plug
- chamber
- valve body
- spool
- 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 - Lifetime
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Abstract
A liquid-controlled check valve of rated flow capacity of 400L/min and communicating with the column comprises a valve body, a valve plug assembly. The valve body is equipped with Cavity A and Cavity B, a Phi 16 hole communicating with the lower cavity of the column at the flat surface of the valve body for communicating with the Cavity A. The screw plug is inserted into the piston, the valve seat is inserted into the lower end of the screw plug, the valve plug with spring is contacted with the valve seat, the valve plug is hard-sealed with the taper of the valve seat, and the valve plug is equipped with a valve sleeve at outer space. The valve sleeve, the spring, the valve plug, the valve seat, the piston and the screw plug is combined to a valve plug assembly, which is inserted into the Cavity A as an integrated inserting element. The upper side of the valve body is equipped with small hole of phi 5 communicating with the small hole in the screw plug, and the valve plug is equipped with six holes of phi 7.5. The check valve has the advantages of compact structure and reliable performance of sealing and closing.
Description
One, technical field
The utility model relates to a kind of hydraulic control one-way valve, and referring in particular to a kind of metered flow that is used for the coal mine fully-mechanized mining working hydraulic support is the hydraulic control one-way valve of 400L/min.
Two, background technology
The structure of hydraulic control one-way valve is varied in the prior art.(ZL 2,005 2 0003882.3 as " operating pressure is the hydraulic control one-way valve of 40MPa " that Chinese patent is announced, the day for announcing: 2006.3.28), it comprises valve body, valve body has valve pocket, having K hole, B hole and O hole on the valve body communicates with valve pocket, the right-hand member of valve pocket is tightened the end bell and spigot joint, from valve pocket left end pack into the successively spring pad of spring, fixed band spool, the metal valve that the termination has rubber gasket, the termination has valve pocket, intermediate sleeve, the push rod of rubber pad, it is stifled to tighten end, on the end bell and spigot joint 12 Φ 5 liquid-through holes is arranged.But do not see the hydraulic control one-way valve that directly is connected that the design of being optimized is arranged in the market with column.
Three, utility model content
It is the hydraulic control one-way valve of 400L/min that the purpose of this utility model is to provide a kind of metered flow that is used for directly being connected with column, its compact conformation, hermetically closing dependable performance.
For achieving the above object, the solution that the utility model is taked is: a kind of hydraulic control one-way valve, it comprises valve body, core assembly, have A chamber and B chamber in the valve body, place, valve body plane is drilled with Φ 16 holes and communicates with the A chamber, stick into piston under the screw plug, valve seat snaps in the end opening of screw plug, the spool of band spring contacts with valve seat, and the spool and the valve seat conical surface seal firmly, and spool is with valve pocket outward, valve pocket, spring, spool, valve seat, piston, screw plug is formed a core assembly, core assembly is done the as a whole plug connector A chamber of packing into, and the valve body upside has Φ 5 apertures to communicate with aperture in the screw plug, and 6 Φ 7.5 holes are arranged on the spool.
Have the R chamber in the described valve body again, the core assembly R chamber of packing into.
The operating principle of this valve is: when reversal valve during to its A chamber feed flow, under action of hydraulic force, overcome spring force and back down spool, liquid enters column cavity of resorption feed flow from valve pocket through Φ 16 holes (A1 mouth), thereby make the column setting prop, reversal valve stops feed flow when column is raised to working resistance, in hydraulic coupling and spring force effect bottom spool and tightly sealing of valve seat, guarantee the column continuous firing.When reversal valve during to B chamber feed flow liquid back down piston from the aperture of valve body upside Φ 5 apertures in screw plug, back down spool simultaneously, liquid flows back to emulsion box from the A chamber, realizes falling post.Be fast lifting post more, in valve body, increase a R chamber and a cover core assembly again.The utility model product directly is connected with four screws with column, and Φ 16 holes communicate with lumen pore under the column, need not to link to each other with the column cavity of resorption by joint, and more compact structure, and adopt the spool and the valve seat conical surface to seal firmly, make the hydraulic control one-way valve more reliable performance.Core assembly is made as a whole plug connector, packs into special tool integral body, but integral demounting when needing maintenance, to make things convenient for well servicing under the attendant of colliery.Its compact conformation, hermetically closing dependable performance, metered flow are 400L/min.
Four, description of drawings
Fig. 1 is a front section view of the present utility model.
Fig. 2 is a C-C sectional view among Fig. 1.
Among the figure: 1, valve body, 2, valve pocket, 3, spring, 4, spool, 5, valve seat, 6, piston, 7, screw plug, 8, Φ 5 apertures, A1, Φ 16 holes.
Five, the specific embodiment
Below in conjunction with embodiment and accompanying drawing thereof the utility model is remake description.
Referring to Fig. 1 and Fig. 2, a kind of hydraulic control one-way valve, it comprises valve body 1, core assembly, have A chamber and B chamber in the valve body 1, place, valve body 1 plane is drilled with Φ 16 hole A1 and communicates with the A chamber, screw plug sticks into piston 67 times, valve seat 5 snaps in the end opening of screw plug 7, the spool 4 of band spring 3 contacts with valve seat 5, and spool 4 seals firmly with valve seat 5 conical surfaces, the spool 4 outer valve pockets 2 that are with, valve pocket 2, spring 3, spool 4, valve seat 5, piston 6, screw plug 7 is formed a core assembly, core assembly is done the as a whole plug connector A chamber of packing into, and valve body 1 upside has Φ 5 apertures 8 to communicate with aperture in the screw plug 7, and 6 Φ 7.5 holes are arranged on the spool 4.
Referring to Fig. 1, have the R chamber again in the described valve body 1, the core assembly R chamber of packing into.
Present embodiment is the FLFDY400/40 hydraulic control one-way valve, and metered flow: 400L/min, operating pressure: 45MPa, working media are 5% oil emulsion, 95% neutral water mix emulsion fluid.
Claims (2)
1, a kind of hydraulic control one-way valve, it comprises valve body (1), core assembly, it is characterized in that: have A chamber and B chamber in the valve body (1), place, valve body (1) plane is drilled with Φ 16 holes (A1) and communicates with the A chamber, stick into piston (6) under the screw plug (7), valve seat (5) snaps in the end opening of screw plug (7), the spool (4) of band spring (3) contacts with valve seat (5), spool (4) seals firmly with valve seat (5) conical surface, the outer valve pocket (2) that is with of spool (4), valve pocket (2), spring (3), spool (4), valve seat (5), piston (6), screw plug (7) is formed a core assembly, core assembly is done the as a whole plug connector A chamber of packing into, valve body (1) upside has Φ 5 apertures (8) to communicate with aperture in the screw plug (7), and 6 Φ 7.5 holes are arranged on the spool (4).
2, a kind of hydraulic control one-way valve according to claim 1 is characterized in that: described valve body has the R chamber in (1) again, the core assembly R chamber of packing into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140007 CN200968217Y (en) | 2006-11-13 | 2006-11-13 | Liquid-controlled non-return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620140007 CN200968217Y (en) | 2006-11-13 | 2006-11-13 | Liquid-controlled non-return valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200968217Y true CN200968217Y (en) | 2007-10-31 |
Family
ID=38967785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620140007 Expired - Lifetime CN200968217Y (en) | 2006-11-13 | 2006-11-13 | Liquid-controlled non-return valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200968217Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374205A (en) * | 2010-08-17 | 2012-03-14 | 北京福坛嘉业科技有限公司 | Delivery valve for stored oil in hydraulic system |
| CN105484780A (en) * | 2015-11-26 | 2016-04-13 | 巨隆集团芜湖兴隆液压有限公司 | Overflow safety valve |
-
2006
- 2006-11-13 CN CN 200620140007 patent/CN200968217Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374205A (en) * | 2010-08-17 | 2012-03-14 | 北京福坛嘉业科技有限公司 | Delivery valve for stored oil in hydraulic system |
| CN105484780A (en) * | 2015-11-26 | 2016-04-13 | 巨隆集团芜湖兴隆液压有限公司 | Overflow safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: FENGLONG HYDRAULIC CO., LTD. Free format text: FORMER NAME: FENGLONG FORGING ELEMENTS CO., LTD., ZHEJIANG |
|
| CP03 | Change of name, title or address |
Address after: Nineteen Yueqing Economic Development Zone, Zhejiang, Wei Road, 325600 Patentee after: Fenglong Hydraulic Co., Ltd. Address before: 325605 Industrial Zone, seven Li Town, Zhejiang, Yueqing Patentee before: Fenglong Forging Elements Co., Ltd., Zhejiang |
|
| C56 | Change in the name or address of the patentee |
Owner name: FENGLONG HIGH-TECH HYDRAULIC CO., LTD. Free format text: FORMER NAME: FENGLONG HYDRAULIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Nineteen Yueqing Economic Development Zone, Zhejiang, Wei Road, 325600 Patentee after: Hydraulic Limited by Share Ltd Address before: Nineteen Yueqing Economic Development Zone, Zhejiang, Wei Road, 325600 Patentee before: Fenglong Hydraulic Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071031 |
|
| EXPY | Termination of patent right or utility model |