CN202531099U - Airtight kelly cock valve - Google Patents
Airtight kelly cock valve Download PDFInfo
- Publication number
- CN202531099U CN202531099U CN2012201791764U CN201220179176U CN202531099U CN 202531099 U CN202531099 U CN 202531099U CN 2012201791764 U CN2012201791764 U CN 2012201791764U CN 201220179176 U CN201220179176 U CN 201220179176U CN 202531099 U CN202531099 U CN 202531099U
- Authority
- CN
- China
- Prior art keywords
- valve base
- ring
- kelly cock
- ball valve
- hermetic seal
- 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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Abstract
The utility model relates to an airtight kelly cock valve. The airtight kelly cock valve comprises a main body (1), a retainer ring (2), a clamping ring (3), an upper retainer ring (4), an upper valve seat (5), a lower retainer ring (6), a ball valve (7), a knob (8), a stopping block (9), a shifting block (10), a lower valve seat (11) and a spring sheet (12), wherein sealing rings (13, 14) are respectively arranged on the spherical surfaces of the upper valve seat (5) and the lower valve seat (11) in contact with the ball valve (7). The airtight kelly cock valve provided by the utility model can be used for both oil well operation and gas well operation and has the advantages of good sealing effect and long service life; sealing performance is guaranteed; wear rates of the upper valve seat, the lower valve seat and the ball valve are reduced; safety in operation is enhanced; and safeties of lives or properties are guaranteed.
Description
Technical field
The utility model relates to blowout prevention instrument in the oil, is specifically related to a kind of kelly cock.
Background technology
Kelly cock also is kelly bar cock or drilling pipe safety valve; Drilling fluid can not have pressure drop ground and freely flows through this valve, and this type valve perhaps is contained in the control blowout prevention of kelly bar top as drilling pipe safety valve; Perhaps be contained in the kelly bar below, prevent that when kelly bar unloads drilling fluid runs off.Adopt metal and intermetallic cooperatively interacting to realize sealing between the upper valve base of existing kelly cock and lower valve base and ball valve, can not be used for the gas well operation, the metal meeting seal failure after sealing easy abrasion and the wearing and tearing that matches with metal, its in application life weak point.
Summary of the invention
The utility model technical problem to be solved is the shortcoming that can not be used for the gas well operation to existing kelly cock, and a kind of hermetic seal kelly cock is provided.
The technical solution of the utility model is: it comprises body, snap ring, back-up ring, upper baffle ring, upper valve base, lower baffle ring, ball valve, knob, block, shifting block, lower valve base and spring leaf, on upper valve base and lower valve base and the contacted spherical of ball valve, is respectively equipped with joint ring.
The technique effect of the utility model is: it both can be used for the oil well operation, also can be used for the gas well operation, was sealed with assurance; Reduced the wear rate of upper valve base, lower valve base and ball valve, had good sealing effect, the advantage of long service life; Improve operational security, guaranteed the safety of lives and properties.
Description of drawings
Accompanying drawing is the axial sectional view of the utility model embodiment.
The specific embodiment
Shown in accompanying drawing; It comprises body 1, back-up ring 2, snap ring 3, upper baffle ring 4, upper valve base 5, lower baffle ring 6, ball valve 7, knob 8, block 9, shifting block 10, lower valve base 11 and spring leaf 12, on upper valve base 5 and lower valve base 11 and ball valve 7 contacted sphericals, is respectively equipped with joint ring 13,14.
The upper end of body 1 is provided with the connection internal thread, the lower end is provided with the connection external screw thread.Be respectively equipped with the annular seal groove on upper valve base 5 and lower valve base 11 and the outer wall that body 1 matches, be respectively equipped with O RunddichtringO and Gask-O-Seal in the sealing device groove.Block 9 is provided with the annular seal groove with the outer wall that body 1 control mouth matches, and is provided with O RunddichtringO and Gask-O-Seal in the sealing device groove.
Through improvement, reduced the wear rate of upper valve base 5, the application life of having improved product with lower valve base 11 spheres and ball valve 7 to product structure.
Claims (7)
1. hermetic seal kelly cock; It is characterized in that: it comprises body (1), back-up ring (2), snap ring (3), upper baffle ring (4), upper valve base (5), lower baffle ring (6), ball valve (7), knob (8), block (9), shifting block (10), lower valve base (11) and spring leaf (12), on upper valve base (5) and lower valve base (11) and the contacted spherical of ball valve (7), is respectively equipped with joint ring (13,14).
2. hermetic seal kelly cock as claimed in claim 1 is characterized in that said joint ring (13,14) is respectively the elastic annular body.
3. hermetic seal kelly cock as claimed in claim 1 is characterized in that said joint ring (13,14) is installed in respectively in the closure gasket groove of being located on upper valve base (5) and lower valve base (11) and the contacted spherical of ball valve (7).
4. hermetic seal kelly cock as claimed in claim 1; It is characterized in that said back-up ring (2), snap ring (3), upper baffle ring (4), upper valve base (5), lower baffle ring (6), ball valve (7), lower valve base (11) and spring leaf (12) are installed in the mesopore of body (1) from the top down; Spring (7) is enclosed within on the lower valve base (6), its two ends are pressed in respectively on lower valve base (11) and the body (1); Knob (8), block (9) and shifting block (10) are installed in respectively in the control mouth of body (1); Knob (8) links to each other with shifting block (10), and shifting block (10) links to each other with ball valve (7).
5. hermetic seal kelly cock as claimed in claim 1 is characterized in that the upper end of said body (1) is provided with the connection internal thread, the lower end is provided with the connection external screw thread.
6. hermetic seal kelly cock as claimed in claim 1; It is characterized in that being respectively equipped with the annular seal groove on said upper valve base (5) and lower valve base (11) and the outer wall that body (1) matches, be respectively equipped with O RunddichtringO and Gask-O-Seal in the sealing device groove.
7. hermetic seal kelly cock as claimed in claim 1 is characterized in that said block (9) is provided with the annular seal groove with the outer wall that body (1) control mouth matches, and is provided with O RunddichtringO and Gask-O-Seal in the sealing device groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201791764U CN202531099U (en) | 2012-04-25 | 2012-04-25 | Airtight kelly cock valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201791764U CN202531099U (en) | 2012-04-25 | 2012-04-25 | Airtight kelly cock valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531099U true CN202531099U (en) | 2012-11-14 |
Family
ID=47132289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201791764U Expired - Fee Related CN202531099U (en) | 2012-04-25 | 2012-04-25 | Airtight kelly cock valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531099U (en) |
-
2012
- 2012-04-25 CN CN2012201791764U patent/CN202531099U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20180425 |