CN2849413Y - Self-relief safety plug - Google Patents
Self-relief safety plug Download PDFInfo
- Publication number
- CN2849413Y CN2849413Y CN 200520124271 CN200520124271U CN2849413Y CN 2849413 Y CN2849413 Y CN 2849413Y CN 200520124271 CN200520124271 CN 200520124271 CN 200520124271 U CN200520124271 U CN 200520124271U CN 2849413 Y CN2849413 Y CN 2849413Y
- Authority
- CN
- China
- Prior art keywords
- plug
- pipeline
- pressure
- circular hole
- self
- 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 oil field special tool, in particular to a self pressure relief safety plug which also enables the plug to be disassembled and installed safely when some excess pressure exists in the pipeline. The self pressure relief safety plug has technical scheme that a circular hole is drilled in the center of a common plug, the depth of the circular hole is as deep as two thirds of the depth of the plug, a side hole is drilled on the lateral face of the plug which is one third from one end of the drilled circular hole, and the side hole is communicated with the center circular hole. The self pressure relief safety plug has advantages that remaining medium can flow out via the side hole or a side channel when the plug is disassembled to the two thirds position in the process of disassembling the plug, therefore the excess pressure in the pipeline is relieved. (5) The phenomenon that the plug is ejected e to hurt people by the excess pressure in the pipeline in the process of disassembly is avoided, and the phenomenon that people is injured or polluted by the ejected remaining medium in the pipeline is also avoided. Therefore, the plug can be disassembled safely, and the installation of the plug with excess pressure can also be realized. When the plug is screwed into one third of position, the plug scarcely bears pressure because of relief holes and can be smoothly screwed in.
Description
One, technical field:
The utility model relates to a kind of oil field special tool, particularly relates to when having certain overbottom pressure in a kind of pipeline, also can make the dismounting of plug safety and install from pressure release safety plug.
Two, background technique:
In the oil development industry, the oil nozzle cover place at every mouthful of oil well all needs to install plug, on oil transport pipeline, particularly on the individual well pipeline of high pressure low permeability block, for the needs of winter cement car clean-up line, also needs to install plug.Stolen in order to prevent crude oil, the emptying valve is not set on most wells well head and the pipeline, thereby under the situation of two ends valve closing, residual pressure also is difficult to eliminate in the pipeline, if valve closing is sternly not all the more so, thereby causes plug in unloading process, usually got and hurt sb.'s feelings by overbottom pressure in the pipeline, or remaining media ejection is hurted sb.'s feelings or is stained the person in the pipeline, in addition, has overbottom pressure also to cause plug that difficulty is installed in the pipeline.
Three, summary of the invention:
The purpose of this utility model is exactly the above-mentioned defective that exists at prior art, provides when having certain overbottom pressure in a kind of pipeline, also can make the dismounting of plug safety and install from pressure release safety plug.
Its technological scheme is: at a circular hole of center drill (2) of plug (1), the degree of depth is 1/3 of a plug length, bores a side opening (3) in the side of plug from boring one end 1/3 place, and side opening (3) and center hole (2) are connected.
The beneficial effects of the utility model are: in the plug unloading process, when plug is dismantled 2/3 position, remaining media can flow out by side opening or side channel in the pipeline, thereby release overbottom pressure in the pipeline, avoided in unloading process, plug is got the phenomenon of hurting sb.'s feelings by overbottom pressure in the pipeline, has also avoided the interior remaining media of pipeline to spray the phenomenon of hurting sb.'s feelings or staining the person.Thereby plug safety is pulled down; Equally, also can realize the installation of plug band overbottom pressure, screw in that because of relief hole is arranged, plug is pressure-bearing hardly, can realize smooth screw-in at 1/3 o'clock at plug.
Four, description of drawings:
Accompanying drawing is a longitudinal sectional view of the present utility model.
Five, embodiment:
In conjunction with the accompanying drawings, the utility model will be further described:
At center drill one circular hole 2 of common plug 1, the degree of depth is 1/3 of plug 1 length, bores a side opening 3 in the side of plug from head end 1/3 place, and side opening 3 degree of depth are advisable to connect with center hole 2.In the plug unloading process, when plug is dismantled 2/3 position, remaining media can flow out by side opening or side channel in the pipeline, thereby release overbottom pressure in the pipeline, avoided in unloading process, plug is got the phenomenon of hurting sb.'s feelings by overbottom pressure in the pipeline, has also avoided the interior remaining media of pipeline to spray the phenomenon of hurting sb.'s feelings or staining the person.Thereby plug safety is pulled down.Because this working of an invention, can realize simultaneously the installation of plug band overbottom pressure, screwed in 1/3 o'clock at plug, because of the pressure release through hole is arranged, plug is pressure-bearing hardly, can realize smooth screw-in, when continue screwing in,, there is 1/3 screw thread painstaking though plug bears pressure, utilize the strength of screw thread, plug can be screwed into the end.
Claims (1)
1, a kind of from pressure release safety plug, it is characterized in that: at a circular hole of center drill (2) of plug (1), the degree of depth is 1/3 of a plug length, bores a side opening (3) in the side of plug (1) from boring one end 1/3 place, and side opening (3) and center hole (2) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520124271 CN2849413Y (en) | 2005-11-16 | 2005-11-16 | Self-relief safety plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520124271 CN2849413Y (en) | 2005-11-16 | 2005-11-16 | Self-relief safety plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2849413Y true CN2849413Y (en) | 2006-12-20 |
Family
ID=37521897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520124271 Expired - Fee Related CN2849413Y (en) | 2005-11-16 | 2005-11-16 | Self-relief safety plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2849413Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267199A (en) * | 2013-06-05 | 2013-08-28 | 池州恒生科技发展有限公司 | Inner pipeline plug and outer pipeline plug |
-
2005
- 2005-11-16 CN CN 200520124271 patent/CN2849413Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267199A (en) * | 2013-06-05 | 2013-08-28 | 池州恒生科技发展有限公司 | Inner pipeline plug and outer pipeline plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |