CN2620074Y - Motion prevention centralising device - Google Patents
Motion prevention centralising device Download PDFInfo
- Publication number
- CN2620074Y CN2620074Y CN 03213444 CN03213444U CN2620074Y CN 2620074 Y CN2620074 Y CN 2620074Y CN 03213444 CN03213444 CN 03213444 CN 03213444 U CN03213444 U CN 03213444U CN 2620074 Y CN2620074 Y CN 2620074Y
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- China
- Prior art keywords
- main body
- utility
- model
- centralizer
- centralizer main
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- 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 pertains to the technical field of displacement pumps used for oil extractors in mechanical oil extraction, aiming at designing a displacement pump having the advantages of free mandrel, convenient field installation and low cost. The displacement pump is composed of a centralizer main body 1 and a locking metal frame 2. The centralizer main body 1 is made of nylon material and is connected with the locking metal frame 2 through sulfuration. The utility model has the advantages that a disengaging between a sucker rod and a box coupling is prevented, etc.
Description
Technical field: the utility model belongs to mechanical oil recovery used for oil extractor plunger pump technique field.
Background technology: in the prior art, centralizer has two kinds.The one, car coat type, shortcoming is that string is moving easily, causes the secondary eccentric wear.The 2nd, mandrel formula centralizer, as shown in Figure 4, shortcoming is to have increased a mandrel on the structure, field erected workload increases, and cost is higher.
Summary of the invention: the purpose of this utility model is to develop a kind of no mandrel, on-the-spot simple installation, the moving centralizer of anti-string cheaply.
The utility model is by the centralizer main body, and the locking metallic framework is formed.Wherein the centralizer main body is a nylon material, the centralizer main body is the main body that is no less than three rib, the centralizer main body be no less than three rib respectively have on the position of corresponding locking metallic framework and be no less than a hole, fill nylon material in the hole, the centralizer main body is connected with the sulfuration of locking metallic framework.
The utlity model has following advantage: 1, the utility model is fixed on the rod collar, has realized that giving of sucker rod and box cupling is tight; 2, prevented the dropout of sucker rod and box cupling.
Description of drawings: Fig. 1 is a structure diagram of the present utility model;
Fig. 2 is an A-A sectional drawing of the present utility model;
Fig. 3 is a The field connection layout of the present utility model.
Fig. 4 is the structure diagram of existing mandrel formula centralizer
The specific embodiment: the utility model is by centralizer main body 1, and locking metallic framework 2 is formed.Wherein centralizer main body 1 is a nylon material, centralizer main body 1 is for being no less than the main body of three rib, centralizer main body 1 be no less than three rib respectively have on the position of corresponding locking metallic framework 2 and be no less than a hole, fill nylon material in the hole, centralizer main body 1 is connected with 2 sulfurations of locking metallic framework.
The utility model is used for pumpingh well, and when sucker rod 3 installed the utility model additional, the end face of box cupling 4 contacted with the lower surface of locking metallic framework 2 and tightens, and the trivial tight end face of sucker rod 3 contacts and tightens with the upper surface of locking metallic framework 2.Drive the utility model motion when sucker rod 3 work, the wearing and tearing of the utility model and oil pipe have replaced the wearing and tearing of sucker rod 3 with oil pipe, and the utility model has played the effect of setting upright.Realized two functions like this, the one, the utility model is fixed on the rod collar 4, the one, realized that sucker rod 3 is tight with giving of box cupling 4, prevented sucker rod 3 and box cupling 4 dropouts.
Claims (1)
1, the moving centralizer of anti-string, it is characterized in that: it is by centralizer main body (1), and locking metallic framework (2) is formed; Wherein centralizer main body (1) is a nylon material, centralizer main body (1) is for being no less than the main body of three rib, centralizer main body (1) be no less than three rib respectively have on the position of corresponding locking metallic framework (2) and be no less than a hole, fill nylon material in the hole, centralizer main body (1) is connected with locking metallic framework (2) sulfuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213444 CN2620074Y (en) | 2003-06-03 | 2003-06-03 | Motion prevention centralising device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213444 CN2620074Y (en) | 2003-06-03 | 2003-06-03 | Motion prevention centralising device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2620074Y true CN2620074Y (en) | 2004-06-09 |
Family
ID=34242375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03213444 Expired - Fee Related CN2620074Y (en) | 2003-06-03 | 2003-06-03 | Motion prevention centralising device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2620074Y (en) |
-
2003
- 2003-06-03 CN CN 03213444 patent/CN2620074Y/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: 20040609 Termination date: 20100603 |