CN2764932Y - Automatic leak-proof valve with kelly bar - Google Patents
Automatic leak-proof valve with kelly bar Download PDFInfo
- Publication number
- CN2764932Y CN2764932Y CN 200520020042 CN200520020042U CN2764932Y CN 2764932 Y CN2764932 Y CN 2764932Y CN 200520020042 CN200520020042 CN 200520020042 CN 200520020042 U CN200520020042 U CN 200520020042U CN 2764932 Y CN2764932 Y CN 2764932Y
- Authority
- CN
- China
- Prior art keywords
- valve
- chassis
- fixed
- sleeve
- utility
- 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
The utility model relates to an automatic leak-proof valve with a kelly rod, which is composed of a valve plug, a valve plug sleeve, a valve sleeve, a chassis, a valve core and a spring, wherein the valve plug sleeve is fixed at the top part of the valve sleeve, the valve plug is fixed in the valve plug sleeve, the chassis is fixed at the lower part of the valve sleeve, one end of the spring is arranged in the valve core and the other end of the spring is sheathed on a guide rod of the chassis. The utility model has the technical effect that the utility model can prevent drilling fluid leaking outwards in the process of well drilling work which is carried out through the kelly rod at single connecting operation. The utility model can avoid the drilling fluid dirtying people's clothes and well platforms, and can also avoid the waste of the drilling fluid.
Description
Technical field: the utility model relates to the oil drilling apparatus.
Background technology: carry out in the drilling operation course at user's drilling rod, when making up a joint operation, drilling fluid can by drilling rod outwards spill splash the operator on one's body with workbench on, on the one hand its made dirty clothes and raised platform around a well of people has caused the waste of drilling fluid on the other hand again.
Summary of the invention: the purpose of this utility model provides a kind of when making up a joint operation, can prevent the kelly bar automatic leak-proof valve that drilling fluid outwards spills.It is stifled by valve, valve blocks up cover, valve pocket, chassis, spool and spring and constitutes.The stifled cover of valve is fixed in the top of valve pocket, and valve is stifled to be fixed in the stifled cover of valve, and bottom in the valve pocket is fixed on the chassis, and an end of spring is positioned at spool, and the other end is enclosed within on the guide rod on chassis.Technique effect of the present utility model is to carry out in the drilling operation course at user's drilling rod, and when making up a joint operation, it can prevent that drilling fluid from outwards spilling.Be that it can avoid drilling fluid made dirty people's clothes and raised platform around a well, can avoid the wave of drilling fluid useless again.
Description of drawings: accompanying drawing is the utility model embodiment cut-away structure chart.
The specific embodiment: as shown in the figure, it is stifled 1 by valve, the stifled cover 2 of valve, valve pocket 3, chassis 4, spool 5 and spring 6 constitute.The stifled cover 2 of valve is fixed in the top of valve pocket 3, and valve stifled 1 is fixed in the stifled cover 2 of valve, and bottom in the valve pocket 3 is fixed on chassis 4, and an end of spring 6 is positioned at spool 5, and the other end is enclosed within on the guide rod 7 on chassis 4.The joint of stifled cover 2 of valve and valve pocket 3 also is provided with sealing ring 8.
Claims (1)
- Kelly bar automatic leak-proof valve, it includes valve stifled (1), the stifled cover of valve (2), valve pocket (3), chassis (4), spool (5) and spring (6), it is characterized in that: the stifled cover of valve (2) is fixed in the top of valve pocket (3), valve stifled (1) is fixed in the stifled cover of valve (2), the interior bottom of valve pocket (3) is fixed on chassis (4), one end of spring (6) is positioned at spool (5), and the other end is enclosed within on the guide rod (7) of chassis (4).The joint of stifled cover of valve (2) and valve pocket (3) also is provided with sealing ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520020042 CN2764932Y (en) | 2005-01-08 | 2005-01-08 | Automatic leak-proof valve with kelly bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520020042 CN2764932Y (en) | 2005-01-08 | 2005-01-08 | Automatic leak-proof valve with kelly bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2764932Y true CN2764932Y (en) | 2006-03-15 |
Family
ID=36167851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520020042 Expired - Lifetime CN2764932Y (en) | 2005-01-08 | 2005-01-08 | Automatic leak-proof valve with kelly bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2764932Y (en) |
-
2005
- 2005-01-08 CN CN 200520020042 patent/CN2764932Y/en not_active Expired - Lifetime
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150108 Granted publication date: 20060315 |