CN205805505U - Oil pumping machine well head anti-backflow device - Google Patents
Oil pumping machine well head anti-backflow device Download PDFInfo
- Publication number
- CN205805505U CN205805505U CN201620554198.2U CN201620554198U CN205805505U CN 205805505 U CN205805505 U CN 205805505U CN 201620554198 U CN201620554198 U CN 201620554198U CN 205805505 U CN205805505 U CN 205805505U
- Authority
- CN
- China
- Prior art keywords
- cone
- oil
- groove
- well
- nylon
- 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
This utility model provides oil pumping machine well head anti-backflow device.Its technical scheme is: be mainly made up of through hole (1), oil nozzle (2), card column (3), external screw thread (4), nylon cone (5), cone cover (6), liquid outlet (7), cone groove (8), female thread (9), fluid apertures groove (10) and nylon cone groove (11).Design of the present utility model can make oil well under any circumstance stop well, can be effectively prevented in oil flows to well and flow backwards, and beneficially oil well is widelyd popularize.
Description
Technical field
This utility model relates to well head anti-backflow technical field, especially oil pumping machine well head anti-backflow device.
Background technology
The method preventing now fluid from pouring in down a chimney in well is welding ball-and-seat on single well pipeline, and welding ball-and-seat needs to stop
Well, refluence journey, emptying, gas welding pipe cutting first welds.Refunding flow process after completing, be typically necessary the time at 1 hour, work is strong
Degree is big, it is impossible to maintenance, and once ball-and-seat is not tight, changes to get up also to repeat above operation.Otherwise must close well head and produce lock
Door or back-pressure gate, technology need to improve, and it stops well the most in any condition and can effectively prevent oil stream from flowing backwards.
Summary of the invention
This utility model provides the oil pumping machine well head anti-backflow device preventing oil stream from flowing backwards.Its technical scheme is: oil nozzle
Outer layer the right and left is provided with external screw thread, on the right of the outer layer of oil nozzle 2 on have card column, the internal layer of oil nozzle is set to hollow, in oil nozzle
The left side of layer is provided with through hole, and the right side of oil nozzle internal layer is provided with recessed cone groove, is provided with nylon cone groove, nylon in the middle of cone cover internal layer
Being provided with nylon cone in cone groove, the right plane of cone cover is provided with four liquid outlets, and cone cover left plane internal layer is provided with female thread, interior
Threaded four fluid apertures grooves, the outlet of fluid apertures groove is provided with liquid outlet.
Design of the present utility model can make oil well under any circumstance stop well, can be effectively prevented in oil flows to well
Stream, beneficially oil well is widelyd popularize.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is profile of the present utility model.
Detailed description of the invention
As depicted in figs. 1 and 2, oil pumping machine well head anti-backflow device, it is mainly by through hole 1, oil nozzle 2, card column 3, external screw thread
4, nylon cone 5, cone cover 6, liquid outlet 7, cone groove 8, female thread 9, fluid apertures groove 10 and nylon cone groove 11 are constituted.Oil nozzle 2
Outer layer the right and left is provided with external screw thread 4, on the right of the outer layer of oil nozzle 2 on have card column 3, the internal layer of oil nozzle 2 is set to hollow, oil nozzle
The left side of 2 internal layers is provided with through hole 1, and the right side of oil nozzle internal layer is provided with recessed cone groove 8, is provided with nylon cone in the middle of cone cover 6 internal layer
Groove 11, is provided with nylon cone 5 in nylon cone groove 11, the right plane of cone cover 6 is provided with four liquid outlets 7, in the left plane of cone cover 6
Layer is provided with female thread 9, and female thread 9 connects four fluid apertures grooves 10, and fluid apertures groove 10 outlet is provided with liquid outlet 7.
This utility model is applied: the external screw thread 4 being contained on oil nozzle 2 by the female thread 9 of vertebral body cover 6, uses instrument by card column 3
Tightening, enter nylon vertebral body 5 by the through hole 1 of oil nozzle 2 back down when extracting fluid in well out, liquid goes out liquid from four of vertebral body cover 6
Mouth 7 enters oil transportation resistance oil nozzle sleeves, enters petroleum pipeline from resistance oil nozzle sleeve, and after oil well stops well, oil body is back to oil under back pressure effect
In muzzle, oil outlet is bored groove 8 under the effect of back pressure and is blocked by nylon vertebral body 6, reaches to prevent the purpose of reverse flow of fluids.
Claims (3)
1. oil pumping machine well head anti-backflow device, it is characterised in that: outer layer the right and left of oil nozzle (2) is provided with external screw thread (4), oil nozzle
(2) having card column (3) on the right of outer layer, the internal layer of oil nozzle (2) is set to hollow, and the left side of oil nozzle (2) internal layer is provided with through hole
(1), the right side of oil nozzle (2) internal layer is provided with recessed cone groove (8), is provided with nylon cone groove (11), nylon in the middle of cone cover (6) internal layer
Being provided with nylon cone (5) in cone groove (11), cone cover (6) right plane is provided with liquid outlet (7), cone cover (6) left plane internal layer
Being provided with female thread (9), female thread (9) connects fluid apertures groove (10), and fluid apertures groove (10) outlet is provided with liquid outlet (7).
Oil pumping machine well head anti-backflow device the most according to claim 1, it is characterised in that: described liquid outlet (7) is provided with 4
Individual.
Oil pumping machine well head anti-backflow device the most according to claim 1 and 2, it is characterised in that: described fluid apertures groove (10) sets
There are 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620554198.2U CN205805505U (en) | 2016-06-12 | 2016-06-12 | Oil pumping machine well head anti-backflow device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620554198.2U CN205805505U (en) | 2016-06-12 | 2016-06-12 | Oil pumping machine well head anti-backflow device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205805505U true CN205805505U (en) | 2016-12-14 |
Family
ID=58142309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620554198.2U Expired - Fee Related CN205805505U (en) | 2016-06-12 | 2016-06-12 | Oil pumping machine well head anti-backflow device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205805505U (en) |
-
2016
- 2016-06-12 CN CN201620554198.2U patent/CN205805505U/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 |
Granted publication date: 20161214 Termination date: 20170612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |