CN2821137Y - Screw pump centralizer - Google Patents
Screw pump centralizer Download PDFInfo
- Publication number
- CN2821137Y CN2821137Y CN 200520086541 CN200520086541U CN2821137Y CN 2821137 Y CN2821137 Y CN 2821137Y CN 200520086541 CN200520086541 CN 200520086541 CN 200520086541 U CN200520086541 U CN 200520086541U CN 2821137 Y CN2821137 Y CN 2821137Y
- Authority
- CN
- China
- Prior art keywords
- sucker rod
- short circuit
- screw pump
- utility
- model
- 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 centralizer for a screw pump, which comprises a sucker rod pipe nipple 2, a centralizing ring 4 and a female buckle 1 which is installed on one end of the sucker rod pipe nipple 2. The utility model is structurally characterized in that a male buckle 5 is installed on the other end of the sucker rod pipe nipple 2, and the female buckle and the male buckle which are installed on the both ends of the sucker rod pipe nipple are both provided with limited threads. The utility model not only avoids the problem of the prior art that the male buckle of the sucker rod causes a connecting coupling to be expanded and cracked in the process of being used, but also avoids the trouble of disassembling the coupling when the prior art is connected and used, the utility model can be directly connected to use and the operation is convenient and safe.
Description
Technical field the utility model relates to a kind of centralizer of screw pump.
Background technology centralizer of screw pump of the prior art contains sucker rod short circuit, centering ring and is installed in the box of sucker rod short circuit two ends, and box could link together with the sucker rod of screw pump after by the dismounting box cupling.Existing centralizer of screw pump, because there is following shortcoming in its unreasonable structure: the 1st, sucker rod short circuit two ends are all box, when box is connected with sucker rod, must disassemble original box cupling, thereby influence operating speed; The 2nd, the box of sucker rod short circuit two ends does not have spacing screw thread, and it matches with the sucker rod pin thread of screw pump, is easy to during use the box cupling spalling is caused production accident.In addition, because centering ring directly is enclosed within on the sucker rod short circuit in use easy play up and down.
The summary of the invention the purpose of this utility model is to want to overcome above-mentioned the deficiencies in the prior art, and a kind of improved centralizer of screw pump is provided, and this centralizer is easy to use, and is safe and reliable, long service life.
For realizing above-mentioned purpose of the present utility model, the technical scheme that is adopted is: a kind of centralizer of screw pump, comprise sucker rod short circuit, centering ring and be installed in the box of sucker rod short circuit one end, its design feature is at the other end of sucker rod short circuit one pin thread to be installed, and is installed on the box of sucker rod short circuit two ends and the pin thread and all is provided with spacing screw thread.
Most preferred embodiment of the present utility model is that described centering ring is provided with muscle, and centering ring is cast directly on the sucker rod short circuit.
Sucker rod short circuit of the present utility model preferably plates one deck high-abrasive material, to increase the wear-resisting time, increases the service life.
The utility model is a box and pin owing to being installed on sucker rod short circuit two ends, box and pin is provided with spacing screw thread, it can directly be connected with the sucker rod of screw pump, thereby both avoided prior art in use the sucker rod pin thread will connect the problem of box cupling spalling, avoided prior art connecting the trouble of dismantling box cupling when using again, can directly connect use, it is easy to operate, and is safe and reliable.The utility model adopts centering ring to be cast directly on the sucker rod short circuit, can avoid prior art centering ring problem of play up and down on the sucker rod short circuit in use, and the muscle of setting can play certain positioning action it on.Plating one deck high-abrasive material on the sucker rod short circuit, the rate of wear that can effectively slow down sucker rod short circuit and centering ring increases the service life.
Description of drawings Fig. 1 is the structural representation of the utility model embodiment
Fig. 2 is a centering ring structural representation among Fig. 1
The specific embodiment is done further detailed description below in conjunction with specific embodiment to the utility model.
By Fig. 1 and Fig. 2 as can be seen, the utility model comprises sucker rod short circuit 2, centering ring 4 and is installed in the pin thread 5 and the box 1 of sucker rod short circuit 2 two ends, box 1 is provided with spacing screw thread 7, pin thread 5 is provided with spacing screw thread 6, centering ring 4 is cast directly on the sucker rod short circuit 2, be provided with muscle 3 on centering ring 4, the box and pin of sucker rod short circuit 2 and its two end is by screwed connection.
Sucker rod short circuit of the present utility model preferably plates one deck high-abrasive material.
Claims (4)
1, a kind of centralizer of screw pump, comprise sucker rod short circuit (2), centering ring (4) and be installed in the box (1) of sucker rod short circuit (2) one ends, it is characterized in that: at the other end of sucker rod short circuit (2) pin thread (5) is installed, box (1) is gone up to reach on the pin thread (5) and is respectively equipped with spacing screw thread (7) and spacing screw thread (6).
2,, it is characterized in that centering ring (4) is provided with muscle (3) according to the described centralizer of screw pump of claim 1.
3,, it is characterized in that centering ring (4) is cast directly on the sucker rod short circuit (2) according to claim 1 or 2 described centralizer of screw pump.
4,, it is characterized in that being coated with one deck high-abrasive material on the described sucker rod short circuit (2) according to the described centralizer of screw pump of claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520086541 CN2821137Y (en) | 2005-08-24 | 2005-08-24 | Screw pump centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520086541 CN2821137Y (en) | 2005-08-24 | 2005-08-24 | Screw pump centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2821137Y true CN2821137Y (en) | 2006-09-27 |
Family
ID=37017691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520086541 Expired - Fee Related CN2821137Y (en) | 2005-08-24 | 2005-08-24 | Screw pump centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2821137Y (en) |
-
2005
- 2005-08-24 CN CN 200520086541 patent/CN2821137Y/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: 20060927 Termination date: 20100824 |