CN201435276Y - polytetrafluoroethylene porcelain insulator - Google Patents
polytetrafluoroethylene porcelain insulator Download PDFInfo
- Publication number
- CN201435276Y CN201435276Y CN2009200636416U CN200920063641U CN201435276Y CN 201435276 Y CN201435276 Y CN 201435276Y CN 2009200636416 U CN2009200636416 U CN 2009200636416U CN 200920063641 U CN200920063641 U CN 200920063641U CN 201435276 Y CN201435276 Y CN 201435276Y
- Authority
- CN
- China
- Prior art keywords
- porcelain vase
- porcelain insulator
- polytetrafluoroethylene
- central shaft
- porcelain
- 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 polytetrafluoroethylene porcelain insulator, which comprises a porcelain insulator body (4). The porcelain insulator body (4) is made of polytetrafluoroethylene, a hole is arranged in the axial direction of the porcelain insulator body (4), a central shaft (1) which is made of insulating material and has high strength is arranged in the hole, the two ends of the porcelain insulator body (4) are respectively provided with a seal ring (3), and the seal rings (3), the central shaft (1) and the porcelain insulator body (4) are fixedly connected through seal sleeves (2). The porcelain insulator is mainly used in the environment with serious pollution, in particular in the contact net of the electrified railway. The polytetrafluoroethylene not only has excellent electric insulation properties, but also can not be bonded with any dirt. As the central shaft of the porcelain insulator is provided with an insulating bar with high strength and the two ends of the porcelain insulator are both precisely sealed, the good insulation performance and pollution resistance of the porcelain insulator are maintained, and the strength of the polytetrafluoroethylene insulator is improved.
Description
Technical field
The utility model relates to a kind of porcelain bobbin insulator, especially relates to the electric insulation porcelain vase in a kind of electric railway.
Background technology
Porcelain vase is the high-low pressure xegregating unit in the supply line.In the more serious occasion of those damage ratios, often take place to take place because of pollution causes the fault of porcelain insulator performance failure.In electric railway, the train dust that evokes of walking at a high speed constantly is scattered on the porcelain vase of contact line, the smog of diesel locomotive these insulation devices that constantly fire-cureing are added rainy season of a run of wet weather sometimes, make porcelain vase on the contact line very easily be polluted and lose insulation property.Contact line is the no stand-by equipment on the railway line, in case break down, all needs outage to stop and keeps in repair.Improve the anti-pollution ability of electric insulation porcelain vase, for the fail safe that strengthens contact line, the social benefit and the economic benefit that improve railway transportation have great significance.
At present, the main porcelain vase that uses 2 kinds of materials on contact line, a kind of is the ceramic material porcelain vase, another kind is the glass material porcelain vase.All there is the problem of anti-pollution characteristic deficiency in these two kinds of materials.Someone once made porcelain vase with polytetrafluoroethylmaterial material, but failed to come into operation owing to mechanical performance is not enough.Polytetrafluoroethylmaterial material is a kind of good insulating material.It is good insulation preformance not only, and does not adhere to any dirt, and is not aging.Its shortcoming is that intensity is low, and is too pliable and tough.The anti-pollution characteristic that how both to have kept polytetrafluoroethylmaterial material, the feasible again porcelain vase by this material has enough intensity, is main target of the present utility model.
The utility model content
Technical problem to be solved in the utility model provides a kind of dirt that do not adhere to, resistant to pollution polytetrafluoroethylene porcelain vase.
In order to solve the problems of the technologies described above, the polytetrafluoroethylene porcelain vase that the utility model provides, comprise the porcelain vase body, described porcelain vase body is made by polytetrafluoroethylmaterial material, along described porcelain vase body a hole arranged axially, a higher central shaft made from insulating material of intensity is housed in the hole, and the two ends of described porcelain vase body respectively are provided with a sealing ring, and described sealing ring, central shaft and porcelain vase body are fixed together by sealing shroud.
Described central shaft, sealing shroud and this body and function of porcelain vase insulating cement bond together.
Described sealing shroud is provided with screw thread, and also all there is screw thread at the two ends of the two ends of described central shaft and described porcelain vase body, and described central shaft, porcelain vase body and described sealing ring are fixed together by the bolt effect of described sealing shroud.
Adopt technique scheme the polytetrafluoroethylene porcelain vase, at first be the manufacturing materials of improving porcelain vase, adopt polytetrafluoroethylmaterial material to make the body of porcelain vase.In order to strengthen the intensity of porcelain vase, a high strength insulation axle need be installed at the center of porcelain vase.Because polytetrafluoroethylene does not adhere to any material, comprises industrial widely used various glue, therefore, must solve the waterproof sealing problem between central shaft and the polytetrafluoroethylene body.The utility model has installed sealing ring and sealing shroud additional at the two ends of porcelain vase.Sealing shroud and central shaft can with industrial glue commonly used, for example epoxy resin glue carries out tight bond.Therefore as long as between central shaft and sealing shroud, brush one deck resin glue, between sealing shroud and porcelain vase body, settle a sealing ring can solve the waterproof sealing problem simultaneously.
This porcelain vase mainly is applicable at those damage ratios and uses in than serious environmental, particularly uses on the contact line of electric railway.Polytetrafluoroethylene not only has good electrical insulation characteristics, and does not adhere to any dirt.Its shortcoming is too soft, and bearing capacity is little.The utility model adopts installs a high strength insulating rod on the axis of porcelain vase, carry out the way of accurate sealing at the two ends of porcelain vase, has both kept the good insulation preformance of this porcelain vase, and resistant to pollution characteristic has improved the intensity of polytetrafluoroethylene porcelain vase again.
In sum, the utility model is a kind of dirt that do not adhere to, resistant to pollution polytetrafluoroethylene porcelain vase.
Description of drawings
Fig. 1 is a front view of the present utility model;
Fig. 2 be among Fig. 1 A to cutaway view.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1 and Fig. 2, make porcelain vase body 4 with high-quality polytetrafluoroethylmaterial material, the two ends of porcelain vase body 4 are processed with screw thread; Make central shaft 1 with laminated rod or laminated tube that the non-conductive fibre laminated cloth is made, the two ends of central shaft 1 are processed with screw thread; Make sealing shroud 2 with the metal material that is difficult for getting rusty; All there is screw thread on inside and outside two surfaces of sealing shroud 2.Sealing ring 3 is put into porcelain vase body 4, and on each contact-making surface, smear one deck epoxy resin glue, then with sealing shroud 2 fastening getting final product.
Central shaft 1, sealing shroud 2 and porcelain vase body 4 also can adopt insulating cement to bond together.
The two ends of porcelain vase body 4 respectively are provided with a sealing ring 3, and sealing ring 3, central shaft 1 and porcelain vase body 4 are fixed together by described sealing shroud 2.
Claims (4)
1, a kind of polytetrafluoroethylene porcelain vase, comprise porcelain vase body (4), it is characterized in that: described porcelain vase body (4) is made by polytetrafluoroethylmaterial material, along described porcelain vase body (4) hole arranged axially, a higher central shaft made from insulating material (1) of intensity is housed in the hole, and described central shaft (1) and porcelain vase body (4) are fixed together by sealing shroud (2).
2, polytetrafluoroethylene porcelain vase according to claim 1 is characterized in that: described central shaft (1), sealing shroud (2) and porcelain vase body (4) bond together with insulating cement.
3, polytetrafluoroethylene porcelain vase according to claim 1, it is characterized in that: described sealing shroud (2) is provided with screw thread, also all there is screw thread at the two ends of the two ends of described central shaft (1) and described porcelain vase body (4), and described central shaft (1), porcelain vase body (4) and described sealing ring (3) are fixed together by the bolt effect of described sealing shroud (2).
4, polytetrafluoroethylene porcelain vase according to claim 1, it is characterized in that: the two ends of described porcelain vase body (4) respectively are provided with a sealing ring (3), and described sealing ring (3), central shaft (1) and porcelain vase body (4) are fixed together by described sealing shroud (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200636416U CN201435276Y (en) | 2009-03-16 | 2009-03-16 | polytetrafluoroethylene porcelain insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200636416U CN201435276Y (en) | 2009-03-16 | 2009-03-16 | polytetrafluoroethylene porcelain insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201435276Y true CN201435276Y (en) | 2010-03-31 |
Family
ID=42054091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200636416U Expired - Fee Related CN201435276Y (en) | 2009-03-16 | 2009-03-16 | polytetrafluoroethylene porcelain insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201435276Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723905A (en) * | 2015-03-04 | 2015-06-24 | 江西稀有金属钨业控股集团有限公司 | Overhead line installation fixing device and method for down-hole overhead line electric locomotive |
-
2009
- 2009-03-16 CN CN2009200636416U patent/CN201435276Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723905A (en) * | 2015-03-04 | 2015-06-24 | 江西稀有金属钨业控股集团有限公司 | Overhead line installation fixing device and method for down-hole overhead line electric locomotive |
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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: 20100331 Termination date: 20110316 |