CN204486111U - O type inside pipe wall spraying operation scratching centering centralizer - Google Patents
O type inside pipe wall spraying operation scratching centering centralizer Download PDFInfo
- Publication number
- CN204486111U CN204486111U CN201520004640.XU CN201520004640U CN204486111U CN 204486111 U CN204486111 U CN 204486111U CN 201520004640 U CN201520004640 U CN 201520004640U CN 204486111 U CN204486111 U CN 204486111U
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- China
- Prior art keywords
- fixed wedge
- annular fixed
- axle
- spacer pin
- pipe wall
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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 relates to a kind of O type inside pipe wall spraying operation scratching centering centralizer, which solve the technical problem that existing apparatus is poor to coating uniformity during O type inside pipe wall spraying operation, easily body or primer coating are caused to secondary injury, it comprises annular fixed wedge, annular fixed wedge is diametrically provided with four grooves, the circumferencial direction of these four grooves annularly fixed wedge is uniformly distributed, and annular fixed wedge is provided with centre bore; The bottom of four grooves vertically connects spacer pin respectively, and spacer pin is arranged with spring, and spring is connected with axle, and the upper end edge radial direction of axle is provided with breach, is connected with roller in breach, and roller is given prominence to from the outer circumference surface of annular fixed wedge; Gap is provided with between spacer pin and axle; It can spray treatment in extensive use pipeline.
Description
Technical field
The utility model relates to a kind of centralising device, is a kind of O type inside pipe wall spraying operation scratching centering centralizer specifically.
Background technology
When relating to large inner wall anti-corrosive process to O type pipe medicine equipment little of petroleum pipeline, because spray gun or chock supplementary mode spray gun are in spraying operation process, secondary injury is caused to O type tube body surface or manufactured primer coating, and take the mode such as chock, rubber cushion to be difficult to realize the centering of spray gun, thus have influence on the uniformity coefficient of spraying; Especially the body that inwall caliber is uneven is difficult to the uniformity consistency realizing coating.
Summary of the invention
The utility model is exactly to solve the technical problem that existing apparatus is poor to coating uniformity during O type inside pipe wall spraying operation, easily body or primer coating are caused to secondary injury, providing a kind of and make the O type inside pipe wall spraying operation scratching centering centralizer that coating uniformity is good, not easily cause secondary injury.
The technical solution of the utility model is, a kind of O type inside pipe wall spraying operation scratching centering centralizer is provided, comprises annular fixed wedge, annular fixed wedge is diametrically provided with four grooves, the circumferencial direction of these four grooves annularly fixed wedge is uniformly distributed, and annular fixed wedge is provided with centre bore; The bottom of four grooves vertically connects spacer pin respectively, and spacer pin is arranged with spring, and spring is connected with axle, and the upper end edge radial direction of axle is provided with breach, is connected with roller in breach, and roller is given prominence to from the outer circumference surface of annular fixed wedge; Gap is provided with between spacer pin and axle.
Further preferably, the inner side of axle is provided with hole, and roller is provided with central shaft, and the central shaft of roller is located in the hole of breach, and the size distance in gap is 5mm-10mm.
The beneficial effects of the utility model it is possible to ensure spray gun centering in pipeline, make post-job uniform coating thickness, and can avoid secondary injury.
The further characteristic sum aspect of the utility model, by the description of the detailed description of the invention below with reference to accompanying drawing, is clearly recorded.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional view along the central axis of annular fixed wedge in Fig. 1.
Symbol description in figure:
1. spray gun barral of a gun, 2. annular fixed wedge, 3. spacer pin, 4. spring, 5. axle, 6. roller.
Detailed description of the invention
Referring to accompanying drawing, with specific embodiment, the utility model is described in further detail.
As depicted in figs. 1 and 2, this centering centralizer comprises in annular fixed wedge 2 and diametrically has four grooves, and the circumferencial direction of four grooves annularly fixed wedge 2 is uniformly distributed, and the angle between two that is adjacent grooves is 90 °; Annular fixed wedge 2 is provided with centre bore simultaneously.Each bottom portion of groove is vertically fixedly connected with a spacer pin 3, and spring 4 is enclosed within spacer pin 3, and axle 5 is connected with spring 4.The upper end edge radial direction of axle 5 is provided with breach, and inner side is provided with hole, and the Kong Zhongyu axle 5 that the roller 6 with central shaft is inserted into this breach connects, and roller 6 can rotate in breach.Roller 6 is given prominence to from the outer circumference surface of annular fixed wedge 2.Have certain interval between spacer pin 3 and axle 5, this clearance distance can 5mm-10mm.
During use, first the centre bore of the spray gun barral of a gun 1 for spraying from annular fixed wedge 2 being passed, namely annular fixed wedge 2 being enclosed within spray gun barral of a gun 1; Then spray gun is stretched in pipeline to be sprayed, at this moment four rolling 6 just fits together with the contact internal walls of pipeline under the elastic force effect of spring 4, such spray gun barral of a gun 1 just and the axis of pipeline keep coincidence, ensure that the centering of spray gun barral of a gun 1, thus make the uniform coating thickness that spray is good consistent.When operation is complete withdraw from spray gun time, four rolling 6 slowly rolls along inner-walls of duct and moves to outside pipeline, can not cause the secondary injuries such as scratch to coating.
The effect of spacer pin 3 prevents spring 4 excess compression from causing spray gun to depart from center.
In order to reach better centering effect, two, three, four, five, six or more centering centralizers can be set with on spray gun barral of a gun 1.
It should be noted that, annular fixed wedge 2 is respectively equipped with four grooves in the both sides of radial direction, and namely side is provided with four rolling, and opposite side is also provided with four rolling, and such structure also can reach the effect of centering.
The foregoing is only preferred embodiment of the present utility model, is only illustrative for the utility model, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes in the spirit and scope that claim limits to it, amendment, even equivalence, but all will fall in protection domain of the present utility model.
Claims (2)
1. an O type inside pipe wall spraying operation scratching centering centralizer, it is characterized in that, comprise annular fixed wedge, described annular fixed wedge is diametrically provided with four grooves, the circumferencial direction of these four grooves annularly fixed wedge is uniformly distributed, and described annular fixed wedge is provided with centre bore; The bottom of described four grooves vertically connects spacer pin respectively, described spacer pin is arranged with spring, and described spring is connected with axle, and the upper end edge radial direction of described axle is provided with breach, be connected with roller in described breach, described roller is given prominence to from the outer circumference surface of described annular fixed wedge; Gap is provided with between described spacer pin and described axle.
2. O type inside pipe wall spraying operation scratching centering centralizer according to claim 1, it is characterized in that, the inner side of described axle is provided with hole, and described roller is provided with central shaft, the central shaft of described roller is located in the hole of described breach, and the size distance in described gap is 5mm-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520004640.XU CN204486111U (en) | 2015-01-05 | 2015-01-05 | O type inside pipe wall spraying operation scratching centering centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520004640.XU CN204486111U (en) | 2015-01-05 | 2015-01-05 | O type inside pipe wall spraying operation scratching centering centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204486111U true CN204486111U (en) | 2015-07-22 |
Family
ID=53565406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520004640.XU Expired - Fee Related CN204486111U (en) | 2015-01-05 | 2015-01-05 | O type inside pipe wall spraying operation scratching centering centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204486111U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880084A (en) * | 2016-06-16 | 2016-08-24 | 含山县东山德雨球墨铸造厂 | Internal spraying device for super-long ductile cast iron pipe |
| CN107081236A (en) * | 2017-06-13 | 2017-08-22 | 中国地质大学（北京） | A kind of draining box drain automatic spraying robot and its operating method |
| CN110756396A (en) * | 2019-12-10 | 2020-02-07 | 朱宁 | Backlight lamp inclined plane dispenser for television production |
| CN112495613A (en) * | 2020-11-23 | 2021-03-16 | 西安卧龙网络科技有限公司 | Anticorrosive device that sprays paint inside seamless steel pipe |
-
2015
- 2015-01-05 CN CN201520004640.XU patent/CN204486111U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880084A (en) * | 2016-06-16 | 2016-08-24 | 含山县东山德雨球墨铸造厂 | Internal spraying device for super-long ductile cast iron pipe |
| CN107081236A (en) * | 2017-06-13 | 2017-08-22 | 中国地质大学（北京） | A kind of draining box drain automatic spraying robot and its operating method |
| CN110756396A (en) * | 2019-12-10 | 2020-02-07 | 朱宁 | Backlight lamp inclined plane dispenser for television production |
| CN112495613A (en) * | 2020-11-23 | 2021-03-16 | 西安卧龙网络科技有限公司 | Anticorrosive device that sprays paint inside seamless steel pipe |
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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: 20150722 Termination date: 20160105 |