CN202348205U - Simple casing head device - Google Patents
Simple casing head device Download PDFInfo
- Publication number
- CN202348205U CN202348205U CN2011204941538U CN201120494153U CN202348205U CN 202348205 U CN202348205 U CN 202348205U CN 2011204941538 U CN2011204941538 U CN 2011204941538U CN 201120494153 U CN201120494153 U CN 201120494153U CN 202348205 U CN202348205 U CN 202348205U
- Authority
- CN
- China
- Prior art keywords
- upper flange
- head device
- flange
- casing head
- oil
- 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 discloses a simple casing head device. The simple casing head device is characterized by comprising an upper flange, a lower flange, an oil-proof sealing rubber ring and screw plugs, wherein the oil-proof sealing rubber ring is arranged between the upper flange and the lower flange, and the three are connected through bolts; four corresponding holes are processed on the upper flange, the lower flange and the oil-proof sealing rubber ring and respectively communicated with the screw plugs; the cross section of the lower half part of the oil-proof sealing rubber ring is of the shape of a conical surface, and the screw plugs are connected with the upper flange through threads; sealing rings are arranged between the screw plugs and the upper flange; a pipe hoop of an upper casing is hung and connected in a hohlraum of the upper flange; and a pipe hoop of a lower casing is mounted at an outer ring of the lower flange and the outer ring at the lower half part of the oil-proof sealing rubber ring. The simple casing head device disclosed by the utility model is simple in structure, mainly comprises the upper flange, the lower flange and the oil-proof sealing rubber ring and is convenient to mount, and the cross section of the lower half part of the oil-proof sealing rubber ring is in the shape of the conical surface and is in good sealing with the pipe hoop of the lower casing.
Description
Technical field
The utility model relates to a kind of simple and easy casing head device.
Background technology
The casing head device that uses in the oil drilling at present, sealing weak effect between the syndeton, fitting operation is complicated, and labor strength is big.
The utility model content
The utility model technical problem to be solved provides a kind of simple and easy casing head device, has solved the problems referred to above.
The utility model technical problem to be solved realizes through following technical scheme:
A kind of simple and easy casing head device is characterized in that: comprise upper flange, lower flange, oil resistant O-ring seal and plug; The oil resistant O-ring seal is set between said upper flange and the lower flange, and the three connects through bolt; Upper flange, lower flange and oil resistant O-ring seal are processed with four corresponding holes, communicate with plug respectively.
The cross section of the latter half of said oil resistant O-ring seal is the conical surface.
Said plug is connected with upper flange through screw thread.
Be provided with sealing ring between said plug and the upper flange.
Articulate the sleeve pipe pipe collar in the said upper flange annular space.
The setting of casing pipe collar is installed at the latter half outer shroud place of said lower flange outer shroud and oil resistant O-ring seal.
The cross section of said setting of casing pipe collar inner chamber is the conical surface.
The beneficial effect of the utility model:
The utility model is simple in structure importantly to be made up of upper flange, lower flange, oil resistant O-ring seal, and easy for installation, the cross section of the latter half of oil resistant O-ring seal is the conical surface and setting of casing pipe collar good airproof performance.
Description of drawings
Fig. 1 the utility model vertical view
Fig. 2 is the A-A sectional view among Fig. 1
Among the figure, 1-upper flange, 2-lower flange, 3-oil resistant O-ring seal, 4-plug, 5-bolt, 6-sealing ring
The specific embodiment
Shown in Fig. 1-2, a kind of simple and easy casing head device is characterized in that: comprise upper flange 1, lower flange 2, oil resistant O-ring seal 3 and plug 4; Between said upper flange 1 and the lower flange 2 oil resistant O-ring seal 3 is set, the three connects through bolt 5; Upper flange 1, lower flange 2 and oil resistant O-ring seal 3 are processed with four corresponding holes, communicate with plug 4 respectively, load onto plug 4 when surveying annular pressure, and one of them can the setting pressure table.
Said plug 4 is connected with upper flange 1 through screw thread.
1 of said plug 4 and upper flange is provided with sealing ring 6.
Articulate the sleeve pipe pipe collar in said upper flange 1 annular space, will go up the jacket exterior sealing through last sleeve pipe deadweight and bolton.
The cross section of the latter half of said oil resistant O-ring seal 3 is the conical surface; The setting of casing pipe collar is installed at the latter half outer shroud place of said lower flange 2 outer shrouds and oil resistant O-ring seal 3, and the cross section of said setting of casing pipe collar inner chamber is the conical surface, and the conical surface through the junction reaches sealing effectiveness.
Claims (7)
1. a simple and easy casing head device is characterized in that: comprise upper flange, lower flange, oil resistant O-ring seal and plug; The oil resistant O-ring seal is set between said upper flange and the lower flange, and the three connects through bolt; Upper flange, lower flange and oil resistant O-ring seal are processed with four corresponding holes, communicate with plug respectively.
2. simple and easy casing head device as claimed in claim 1, it is characterized in that: the cross section of the latter half of said oil resistant O-ring seal is the conical surface.
3. simple and easy casing head device as claimed in claim 1 is characterized in that: said plug is connected with upper flange through screw thread.
4. simple and easy casing head device as claimed in claim 3 is characterized in that: be provided with sealing ring between said plug and the upper flange.
5. simple and easy casing head device as claimed in claim 1 is characterized in that: articulate the sleeve pipe pipe collar in the said upper flange annular space.
6. according to claim 1 or claim 2 simple and easy casing head device, it is characterized in that: the setting of casing pipe collar is installed at the latter half outer shroud place of said lower flange outer shroud and oil resistant O-ring seal.
7. simple and easy casing head device as claimed in claim 6 is characterized in that: the cross section of said setting of casing pipe collar inner chamber is the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204941538U CN202348205U (en) | 2011-12-02 | 2011-12-02 | Simple casing head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204941538U CN202348205U (en) | 2011-12-02 | 2011-12-02 | Simple casing head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348205U true CN202348205U (en) | 2012-07-25 |
Family
ID=46537214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204941538U Expired - Fee Related CN202348205U (en) | 2011-12-02 | 2011-12-02 | Simple casing head device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348205U (en) |
-
2011
- 2011-12-02 CN CN2011204941538U patent/CN202348205U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121202 |