CN204010859U - A kind of insulating joint - Google Patents
A kind of insulating joint Download PDFInfo
- Publication number
- CN204010859U CN204010859U CN201420390680.8U CN201420390680U CN204010859U CN 204010859 U CN204010859 U CN 204010859U CN 201420390680 U CN201420390680 U CN 201420390680U CN 204010859 U CN204010859 U CN 204010859U
- Authority
- CN
- China
- Prior art keywords
- stress
- adaptor
- insulating joint
- bracket
- stress cone
- 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
Links
- 239000004593 Epoxy Substances 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 230000035882 stress Effects 0.000 description 27
- 230000005684 electric field Effects 0.000 description 4
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 230000002040 relaxant effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
Landscapes
- Cable Accessories (AREA)
Abstract
A kind of insulating joint, comprise the rubber stress cone being set in outside cable insulation sleeve pipe and be positioned at the outermost insulation full skirt of whole insulating joint, rubber stress cone stub end cover has epoxy cover, little head end is provided with the funnel-form bracket of being close to the rubber stress cone conical surface, wealthy mouthful of one end of bracket is against epoxy cover, the other end connects stress adaptor by spring part, connects stress adaptor and is also set in outside insulating sleeve.The utility model can better keep between rubber stress cone and cable the stress on interface constant, thereby stablizes the electrical strength of transmission line, and that total has is reasonable in design, science is practical, the feature such as easy for installation.
Description
Technical field
The utility model relates to power technology field, is specially a kind of insulating joint.
Background technology
In electric power elevated line, power line is to conventionally installing a full skirt shape insulating joint additional between overhead cross-arm, and power line, by running through insulating joint, is stablized the electric field between overhead place power line in order to avoid the electric field that gets muddled affects whole electric power transfer.Existing insulating joint inside is owing to being only provided with rubber stress cone, and under high electric field and thermal field effect, the aging meeting of rubber stress cone causes the variation (relaxing) of interfacial pressure, thereby reduces electrical strength.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide a kind of insulating joint that utilizes spring to strengthen stress.
For solving above-mentioned technical problem, the utility model is by the following technical solutions: a kind of insulating joint, comprise the rubber stress cone being set in outside cable insulation sleeve pipe and be positioned at the outermost insulation full skirt of whole insulating joint, rubber stress cone stub end cover has epoxy cover, little head end is provided with the funnel-form bracket of being close to the rubber stress cone conical surface, wealthy mouthful of one end of bracket is against epoxy cover, and the other end connects stress adaptor by spring part, connects stress adaptor and is also set in outside insulating sleeve.
Further, bracket is also fixedly connected with the first fixed head near one end of spring part, is also fixedly connected with the second fixed head on stress adaptor; The second fixed head and the first fixed head are bolted.
Further, stress adaptor is provided with lead sealing away from one end of spring part.
Compared with prior art, the beneficial effects of the utility model are: the utility model can better keep between rubber stress cone and cable the stress on interface constant, thereby stablize the electrical strength of transmission line, that total has is reasonable in design, science is practical, the feature such as easy for installation.
Brief description of the drawings
Fig. 1 is the structural representation of insulating joint.
In figure: the 1-full skirt that insulate; 2-insulating sleeve; 3-epoxy cover; 4-rubber stress cone; 5-the first fixed head; 6-the second fixed head; 7-bolt; 8-bracket; 9-lead sealing; 10-spring part; 11-stress adaptor.
Embodiment
By reference to the accompanying drawings, a kind of insulating joint, comprise the rubber stress cone 4 being set in outside cable insulation sleeve pipe 2 and be positioned at the outermost insulation full skirt 1 of whole insulating joint, rubber stress cone 4 stub end covers have epoxy cover 3, little head end is provided with the funnel-form bracket 8 of being close to rubber stress cone 4 conical surfaces, 8 wealthy mouthfuls of one end of bracket are against epoxy cover 3, and the other end connects stress adaptor 11 by spring part 10, connect stress adaptor 11 and are also set in outside insulating sleeve 2.
Wherein spring part 10 is the middle spring assembly that is provided with axis, and axis one end connects bracket 8, and the other end connects stress adaptor 11, thereby spring is fixed between bracket 8 and stress adaptor 11.Utilize spring part 10 to coordinate bracket 8 to keep between rubber stress cone 4 and cable the stress on interface constant, and then solve under high electric field and thermal field effect, the problem of the variation (relaxing) of the interfacial pressure that may cause after rubber stress cone 4 is aging, thus the electrical strength of transmission line stablized.
Further, in order to make the whole joint of becoming attached to more firm, bracket 8 is also fixedly connected with the first fixed head 5 near one end of spring part 10, is also fixedly connected with the second fixed head 6 on stress adaptor 11; The second fixed head 6 and the first fixed head 5 are fixed by bolt 7.
Further, in order to strengthen in use the tensile stress of stress adaptor 11, be also provided with lead sealing 9 at stress adaptor 11 away from one end of spring part 10.
Wherein, insulation full skirt 1 adopts alumina porcelain, and alumina porcelain is higher 2 ~ 3 times than quartzy porcelain mechanical strength, and it is strong to have thermal stability, the electric arc dangerous little feature of being heated; Bracket 8 adopts aluminum alloy material, and aluminium alloy is from heavy and light, and mechanical strength is high.
Claims (3)
1. an insulating joint, comprise and be set in the outer rubber stress cone (4) of cable insulation sleeve pipe (2) and be positioned at the outermost insulation full skirt of whole insulating joint (1), it is characterized in that, rubber stress cone (4) stub end cover has epoxy cover (3), little head end is provided with the funnel-form bracket (8) of being close to rubber stress cone (4) conical surface, wealthy mouthful of one end of bracket (8) is against epoxy cover (3), the other end connects stress adaptor (11) by spring part (10), connects stress adaptor (11) and is also set in outside insulating sleeve (2).
2. a kind of insulating joint according to claim 1, is characterized in that, described bracket (8) is also fixedly connected with the first fixed head (5) near one end of spring part (10), is also fixedly connected with the second fixed head (6) on described stress adaptor (11); The second fixed head (6) is fixing by bolt (7) with the first fixed head (5).
3. a kind of insulating joint according to claim 1 and 2, is characterized in that, described stress adaptor (11) is provided with lead sealing (9) away from one end of spring part (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420390680.8U CN204010859U (en) | 2014-07-15 | 2014-07-15 | A kind of insulating joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420390680.8U CN204010859U (en) | 2014-07-15 | 2014-07-15 | A kind of insulating joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204010859U true CN204010859U (en) | 2014-12-10 |
Family
ID=52050822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420390680.8U Expired - Fee Related CN204010859U (en) | 2014-07-15 | 2014-07-15 | A kind of insulating joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204010859U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190578A (en) * | 2019-07-04 | 2019-08-30 | 中车青岛四方车辆研究所有限公司 | A kind of structure of voltage regulation for EMU hv cable termination |
| CN113140970A (en) * | 2020-01-19 | 2021-07-20 | 武汉大学 | Switch cabinet busbar sleeve structure and switch cabinet |
-
2014
- 2014-07-15 CN CN201420390680.8U patent/CN204010859U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190578A (en) * | 2019-07-04 | 2019-08-30 | 中车青岛四方车辆研究所有限公司 | A kind of structure of voltage regulation for EMU hv cable termination |
| CN113140970A (en) * | 2020-01-19 | 2021-07-20 | 武汉大学 | Switch cabinet busbar sleeve structure and switch cabinet |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20180715 |