CN204083343U - A kind of drilling rod stopcock - Google Patents
A kind of drilling rod stopcock Download PDFInfo
- Publication number
- CN204083343U CN204083343U CN201420608666.0U CN201420608666U CN204083343U CN 204083343 U CN204083343 U CN 204083343U CN 201420608666 U CN201420608666 U CN 201420608666U CN 204083343 U CN204083343 U CN 204083343U
- Authority
- CN
- China
- Prior art keywords
- valve
- rod
- valve body
- seat
- stopcock
- 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
Links
Abstract
The utility model discloses a kind of drilling rod stopcock, belong to valve field.This drilling rod stopcock comprises valve body, valve seat, valve rod, is provided with the cone type faucet body having equalizing orifice in valve body; Described valve seat is close to faucet body, and is provided with successively between valve body and seals plain cushion and elastic element, and valve seat and valve body contact position are also provided with and seal O shape and enclose; Be provided with block between described valve seat and valve rod, valve rod is provided with the limit dais with block adaptation; Described valve body is radial is also symmetrically arranged with sliding bearing with valve stem contacts seat.Adopt the utility model to efficiently solve in long-term onsite application process, be difficult to open when faucet body runs into blowout high-pressure liquid after closing, cause the problem of valve invalidation.
Description
Technical field
The utility model relates to valve field, specifically a kind of drilling rod stopcock.
Background technique
Stopcock is mainly used in cutting off, connecting and throttle medium, is widely used in oilfield exploitation, conveying and refining equipment, is also widely used in petrochemical industry, chemical industry, coal gas, rock gas, liquefied petroleum gas (LPG), HVAC industry and general industry simultaneously.
In the drillng operation of Oil/gas Well, in order to avoid high-pressure oil gas causes blowout out of control by the ejection of drilling rod hydrophthalmia, adopt installs stopcock at drilling rod more.But in long-term onsite application process, be difficult to open when faucet body runs into blowout high-pressure liquid after closing, cause valve invalidation.
Model utility content the utility model aims to provide a kind of drilling rod stopcock, solves the problem.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of drilling rod stopcock, comprises valve body, valve seat, valve rod, it is characterized in that: be provided with the faucet body having equalizing orifice in valve body; Described valve seat is close to faucet body, and is provided with successively between valve body and seals plain cushion and elastic element, and valve seat and valve body contact position are also provided with and seal O shape and enclose; Be provided with block between described valve seat and valve rod, valve rod is provided with the limit dais with block adaptation; Described valve body is radial is also symmetrically arranged with sliding bearing with valve stem contacts seat.
Described elastic element is disc spring.
Described faucet body also has the through hole suitable with valve body fluid passage.
Described sealing O shape circle is nitrile rubber material seal O shape circle.
The beneficial effects of the utility model are:
One, adopt sealing plain cushion to enclose with sealing O shape to be used in conjunction with each other, ensure the excellent sealing effect of valve body axis, avoid in drilling process, oil gas is revealed.
Two, be provided with disc spring between valve seat and valve body, replace common spring by disc spring and realize the function that pretightening force holds out against valve seat, avoid the problem that common spring easily lost efficacy in granule medium or resisting medium.
Three, on faucet body, offer equalizing orifice, simpler than design balance passage on valve body, processing is also easier, effectively saves cost.
Four, when cut-out tap body, under pressure, faucet body produces certain displacement to Way out, block coordinates with limit dais, valve seat is separated with faucet body do not fit, flowing medium is by the gap between faucet body and valve seat and the equalizing orifice on faucet body, and trace enters faucet body, effectively reduces the pressure reduction of outlet end and entrance point.
Five, be also provided with sliding bearing in the radial contact position of valve rod and valve body, effectively reduce opening and closing moment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the drilling rod stopcock that the utility model provides.
Mark in figure: 1 be valve body, 2 be disc spring, 3 be valve seat, 5 be valve rod, 7 be block, 8 be equalizing orifice, 9 be faucet body, 10 be limit dais, 11 be through hole, 12 be sliding bearing for sealing O shape circle, 6 for sealing plain cushion, 4.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
As shown in Figure 1, a kind of drilling rod stopcock, comprises valve body 1, valve seat 4, valve rod 6, it is characterized in that: be provided with the faucet body 9 having equalizing orifice 11 in valve body 1; Described valve seat 4 is close to faucet body 9, and is provided with successively between valve body 1 and seals plain cushion 3 and elastic element, and elastic element is disc spring 2, and valve seat 4 and valve body 1 contact position are also provided with and seals O shape and enclose 5, and it is that nitrile rubber material seal O shape is enclosed that sealing O shape encloses 5.Be provided with block 7 between described valve seat 4 and valve rod 6, valve rod 6 is provided with the limit dais 10 with block 7 adaptation; Described valve body 1 radial direction contacts seat with valve rod 6 and is also symmetrically arranged with sliding bearing 12.Described cock 9 body also has the through hole 11 suitable with valve body 1 fluid passage.
When being communicated with, the through hole 11 on faucet body 9 aims at the fluid passage of valve body 1, and inlet outlet pressure differential is close, and valve seat 4 is close to faucet body 9 under the elastic force of disc spring 2, forms sealing.
During cut-out tap body 9, under pressure, faucet body 9 produces certain displacement to Way out, block 7 is against on limit dais 10, the valve seat 4 of entrance point is separated with faucet body 9 do not fit, flowing medium is by the gap between faucet body 9 and valve seat 4 and the equalizing orifice 8 on faucet body 9, and trace enters faucet body 9, effectively reduces the pressure reduction of outlet end and entrance point.Again sliding bearing is set at valve rod 6 and the contact segment of valve body 1, reduces moment when opening and closing.Efficiently solve stopcock and close rear stubborn phenomenon, the scheme of solution is simple, easily realizes.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a drilling rod stopcock, comprises valve body, valve seat, valve rod, it is characterized in that: be provided with the faucet body having equalizing orifice in valve body; Described valve seat is close to faucet body, and is provided with successively between valve body and seals plain cushion and elastic element, and valve seat and valve body contact position are also provided with and seal O shape and enclose; Be provided with block between described valve seat and valve rod, valve rod is provided with the limit dais with block adaptation; Described valve body is radial is also symmetrically arranged with sliding bearing with valve stem contacts seat.
2. drilling rod stopcock according to claim 1, is characterized in that: described elastic element is disc spring.
3. drilling rod stopcock according to claim 1, is characterized in that: described faucet body also has the through hole suitable with valve body fluid passage.
4. drilling rod stopcock according to claim 1, is characterized in that: described sealing O shape circle is nitrile rubber material seal O shape circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420608666.0U CN204083343U (en) | 2014-10-21 | 2014-10-21 | A kind of drilling rod stopcock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420608666.0U CN204083343U (en) | 2014-10-21 | 2014-10-21 | A kind of drilling rod stopcock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204083343U true CN204083343U (en) | 2015-01-07 |
Family
ID=52176064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420608666.0U Expired - Fee Related CN204083343U (en) | 2014-10-21 | 2014-10-21 | A kind of drilling rod stopcock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204083343U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265943A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | Drill rod plug valve |
| CN105065702A (en) * | 2015-07-16 | 2015-11-18 | 浙江福瑞科流控机械有限公司 | Lifting plug valve and control method thereof |
| CN110094181A (en) * | 2018-01-30 | 2019-08-06 | 东营市创元石油机械制造有限公司 | The efficient plug valve of oil drilling |
-
2014
- 2014-10-21 CN CN201420608666.0U patent/CN204083343U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265943A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | Drill rod plug valve |
| CN105065702A (en) * | 2015-07-16 | 2015-11-18 | 浙江福瑞科流控机械有限公司 | Lifting plug valve and control method thereof |
| CN110094181A (en) * | 2018-01-30 | 2019-08-06 | 东营市创元石油机械制造有限公司 | The efficient plug valve of oil drilling |
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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: 20150107 Termination date: 20151021 |
|
| EXPY | Termination of patent right or utility model |