CN2718205Y - Plugging sucker rod centering paraffin scraper - Google Patents
Plugging sucker rod centering paraffin scraper Download PDFInfo
- Publication number
- CN2718205Y CN2718205Y CN 200420029090 CN200420029090U CN2718205Y CN 2718205 Y CN2718205 Y CN 2718205Y CN 200420029090 CN200420029090 CN 200420029090 CN 200420029090 U CN200420029090 U CN 200420029090U CN 2718205 Y CN2718205 Y CN 2718205Y
- Authority
- CN
- China
- Prior art keywords
- sucker rod
- grafting
- paraffin scraper
- plugging
- wiper block
- 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
A plugging sucker rod centering paraffin scraper is used for rod extracting oil, which is formed by two splicing means which are in the identical structure, holding the pumping rod in right-left reverse direction, and inserting mutually along the axial direction. The plugging sucker rod centering paraffin scraper is characterized in that the centering blocks which are arranged on the splicing means are arranged in Y shape in circumferential direction. After both splicing means are spliced, the centering blocks can contact with the pipe wall within the range of 360 DEG. The plugging sucker rod centering paraffin scraper has the advantages of centralizing and scraping the paraffin deposit on the pipe wall thoroughly without rotating the sucker rod.
Description
(1) technical field
The utility model relates to a kind of centering paraffin scraper for sucker rod that uses in the bar oil recovery is arranged.
(2) background technology
Chinese patent: ZL 96225562.9, ZL 99208007.X, ZL 02246216.3, ZL02246222.8 disclose and severally have been installed in oil pumping rod centering device on the sucker rod by inserting mode.They all are by two grafting members that structure is identical, about oppositely embrace sucker rod, mutually pegging graft vertically forms.The grafting member is made up of semi-ring cylinder, wiper block, grafting bar, inserting groove, locking tooth and back stop slot usually, and their common characteristic are: the wiper block on the grafting member is T-shaped distribution on the semi-ring cylinder.
The shortcoming of this oil pumping rod centering device is: oppositely embrace sucker rod when about the identical grafting member of two structures, after pegging graft mutually vertically, the wiper block of two groups of T-shaped distributions ° fits together along the relative Rotate 180 of sucker rod axis, be crossing distribution around sucker rod after the wiper block combination on wiper block on one group of grafting member and another group grafting member, wiper block can only contact on discontinuous four contact surfaces with tubing wall, therefore this centralizer can not remove the tube inner wall wax deposition at 360 ° of circumference supernatants, it can only be used to set upright sucker rod, can not be used to strike off the tube inner wall wax deposition.
(3) summary of the invention
The purpose of this utility model provides a kind of plug-in type centering paraffin scraper for sucker rod, makes two grafting members after grafting, and the wiper block on it can both contact on 360 ° of circumference with tube inner wall, makes it not only have the function of setting upright, and has the paraffin cutting function.
The utility model is achieved in that a kind of plug-in type centering paraffin scraper for sucker rod, by oppositely embracing sucker rod about the identical grafting member of two structures, peg graft mutually vertically and constitute, the grafting member is made up of semi-ring cylinder, wiper block, grafting bar, inserting groove, locking tooth and back stop slot, it is characterized in that: the wiper block on the described grafting member, Y-shaped distribution on the semi-ring cylinder.
Because the wiper block on the grafting member, Y-shaped distribution on the semi-ring cylinder, form flow channels between adjacent two wiper blocks, when two grafting members that structure is identical, about oppositely embrace sucker rod, after pegging graft mutually vertically, the wiper block of two groups of Y-shaped distributions ° fits together around the relative Rotate 180 of sucker rod axis, wiper block on one group of grafting member is just in time facing to the flow channels on another group grafting member, the plane of projection of two groups of wiper blocks overlaps and can cover 360 ° of circumference of oil pipe, so in the process that sucker rod moves up and down, it both can set upright sucker rod, can strike off the wax deposition on 360 ° of circumference of tube inner wall again.
(4) description of drawings
Fig. 1 is the front view of the grafting member of plug-in type centering paraffin scraper for sucker rod;
Fig. 2 is the vertical view of the grafting member of plug-in type centering paraffin scraper for sucker rod shown in Figure 1.
Among the figure: 1. back stop slot, 2. grafting bar, 3. semi-ring cylinder, 4. wiper block, 5. locking tooth, 6. inserting groove, 7. flow channels.
(5) specific embodiment
A kind of plug-in type centering paraffin scraper for sucker rod, by oppositely embracing sucker rod about the identical grafting member of two structures, pegging graft mutually vertically forms.The grafting member is made up of semi-ring cylinder 3, wiper block 4, grafting bar 2, inserting groove 6, locking tooth 5 and back stop slot 1.
The grafting member is a trunk with semi-ring cylinder 3, and peg graft longitudinally a bar 2 and a recessed back stop slot 1 are respectively arranged in the concave structure collar extension both sides of semi-ring cylinder 3 first halves; An inserting groove 6 and a protruding locking tooth 5 are longitudinally respectively arranged in the concave structure internal orifice both sides of semi-ring cylinder 3 Lower Halves; In the Lower Half of semi-ring cylinder 3, three wiper blocks 4 are arranged around the Y-shaped distribution of the external surface of semi-ring cylinder 3, wherein there is a wiper block at the concave structure back side of semi-ring cylinder 3, and respectively there is a wiper block both sides, concave structure the place ahead of semi-ring cylinder 3; The shape of cross section of three wiper blocks 4 on the grafting member is made and is similar to fan-shaped shape, and the shape of cross section of the flow channels 7 that forms between two adjacent wiper blocks also is similar to fan-shaped.
When on sucker rod, the plug-in type centering paraffin scraper for sucker rod being installed, with two grafting members that structure is identical, about oppositely embrace sucker rod, with the inserting groove 6 on 2 another grafting members of aligning of the grafting bar on the grafting member, after pegging graft mutually vertically, locking tooth 5 on two groups of grafting members is meshing with each other with back stop slot 1, prevents that two grafting members from getting loose.At this moment, the wiper block 4 of two groups of Y-shaped distributions, ° fit together around the relative Rotate 180 of sucker rod axis, the wiper block 4 on one group of grafting member just in time overlaps facing to the plane of projection of 7, the two groups of wiper blocks 4 of flow channels on another group grafting member can cover 360 ° of circumference of tube inner wall.In the process that sucker rod moves up and down, it both can set upright sucker rod, can strike off the wax deposition on 360 ° of circumference of tube inner wall again, thereby realized setting upright and two kinds of functions of paraffin cutting.
Claims (2)
1. plug-in type centering paraffin scraper for sucker rod, by oppositely embracing sucker rod about the identical grafting member of two structures, peg graft mutually vertically and constitute, the grafting member is made up of semi-ring cylinder (3), wiper block (4), grafting bar (2), inserting groove (6), locking tooth (5) and back stop slot (1), it is characterized in that: the wiper block (4) on the described grafting member, go up Y-shaped distribution at semi-ring cylinder (3).
2. plug-in type centering paraffin scraper for sucker rod according to claim 1 is characterized in that: the shape of cross section of wiper block (4) can be made and be similar to fan-shaped shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420029090 CN2718205Y (en) | 2004-06-03 | 2004-06-03 | Plugging sucker rod centering paraffin scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420029090 CN2718205Y (en) | 2004-06-03 | 2004-06-03 | Plugging sucker rod centering paraffin scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2718205Y true CN2718205Y (en) | 2005-08-17 |
Family
ID=34892875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420029090 Expired - Fee Related CN2718205Y (en) | 2004-06-03 | 2004-06-03 | Plugging sucker rod centering paraffin scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2718205Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729880A (en) * | 2018-04-17 | 2018-11-02 | 中国石油天然气股份有限公司 | A kind of novel rod-type righting wax scraping apparatus |
-
2004
- 2004-06-03 CN CN 200420029090 patent/CN2718205Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729880A (en) * | 2018-04-17 | 2018-11-02 | 中国石油天然气股份有限公司 | A kind of novel rod-type righting wax scraping apparatus |
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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: 20050817 Termination date: 20120603 |