CN202260335U - Insulating cover capable of increasing creepage distance - Google Patents
Insulating cover capable of increasing creepage distance Download PDFInfo
- Publication number
- CN202260335U CN202260335U CN2011203344489U CN201120334448U CN202260335U CN 202260335 U CN202260335 U CN 202260335U CN 2011203344489 U CN2011203344489 U CN 2011203344489U CN 201120334448 U CN201120334448 U CN 201120334448U CN 202260335 U CN202260335 U CN 202260335U
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- China
- Prior art keywords
- insulating cover
- dovetail groove
- creepage distance
- cover
- protruding
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Abstract
The utility model discloses an insulating cover capable of increasing a creepage distance. The insulating cover comprises closed type cover bodies and an opening slit is vertically arranged at the right center of the bottom part of each cover body; the cover bodies at two sides of the openings slits respectively downwards extend to form left and right joint components; and the insulating cover further comprises positioning dovetail groove structures which are arranged on the left and right joint components and are used for fixedly jointing the left and right joint components. In the utility model, the creepage distance is increased and the withstand voltage level is improved by arranging the positioning dovetail groove structures. Meanwhile, the insulating cover is convenient to dismount and mount so that live-wire work can be conveniently carried out by workers and the external force damaging accident can be effectively avoided.
Description
Technical field
The utility model relates to the field of High-Voltage Electrical Appliances insulation, relates in particular to a kind of insulating cover that increases creepage distance.
Background technology
In recent years, high-stem plant and falling object from high altitude jeopardize power circuit safety phenomenon and are on the rise near overhead power line.Near season power circuit high megaphanerophytes along the line such as annual summer, autumn are because of influences such as thunderstorm, strong wind, typhoon, cyclones; Repeatedly fractureing, branch is made contact, trunk is toppled over incidents such as line ball; Cause power circuit tripping operation power outage to take place frequently, had a strong impact on enterprise security production and resident's normal life.The outside destroy accident that causes for the problem that exposes that solves relevant device electric conductor on the aerial insulated wire; People have developed various High-Voltage Electrical Appliances insulating covers; Insulating cover is installed on the overhead transmission line on the high-voltage electrical equipment electric conductor exsertion part; This section circuit can well be insulated protect, thereby avoid the generation of short circuit accident.These traditional insulating covers comprise enclosed cover body; The place, center longitudinally is provided with an open seam in said cover body bottom; The cover body of said open seam both sides extends to form left and right attachment respectively downwards, but that left and right in the past attachment all adopt the button locate mode to engage is fixing, yet the existence of buttonhole has weakened the dielectric strength of insulating cover on the insulating cover; Creepage distance is little, and anti-electric level is very low.
Summary of the invention
The purpose of the utility model is to overcome the defective of prior art and provides kind can increase the insulating cover of creepage distance; It increases creepage distance through the location oat tail groove structure that concavo-convex coupling is set on the left and right attachment of insulating cover; Improve the proof voltage level, effectively avoided the generation of outside destroy accident.
The technical scheme that realizes above-mentioned purpose is:
A kind of insulating cover that increases creepage distance; This insulating cover comprises enclosed cover body; Place, center, said cover body bottom longitudinally is provided with an open seam; The cover body of said open seam both sides extends to form left and right attachment respectively downwards, and wherein, said insulating cover also comprises the location oat tail groove structure of being located on the left and right attachment and making its fixed engagement.
The insulating cover of above-mentioned increased creepage distance, wherein, said insulating cover adopts silastic material.
The insulating cover of above-mentioned increased creepage distance; Wherein, Said location oat tail groove structure comprises is located at inboard protruding dovetail groove of said left attachment and the recessed dovetail groove of being located at said right attachment inboard and being complementary with said protruding dovetail groove, and said protruding dovetail groove is embedded in the said recessed dovetail groove.
The insulating cover of above-mentioned increased creepage distance; Wherein, Said location oat tail groove structure comprises protruding dovetail groove and the sealing strip that is stretched out respectively and formed by left and right attachment end; Said sealing strip top is provided with the recessed dovetail groove that is complementary with said protruding dovetail groove, and said protruding dovetail groove is embedded in the said recessed dovetail groove.
The beneficial effect of the utility model is: researching and analysing on traditional insulating cover contour structures characteristics basis; The insulating cover of the utility model is processed by silastic material; Location oat tail groove structure through mutual concavo-convex coupling is set on the left and right attachment of insulating cover increases creepage distance, improves the proof voltage level; Simultaneously, the utility model easy accessibility makes the staff be convenient to carry out live line working, can avoid the generation of outside destroy accident effectively.
Description of drawings
Fig. 1 is the structural section figure of first embodiment of the utility model;
Fig. 2 is the structural section figure of second embodiment of the utility model.
Embodiment
To combine accompanying drawing that the utility model is described further below.
See also Fig. 1 and Fig. 2; A kind of insulating cover that increases creepage distance of the utility model has been shown among the figure; This insulating cover comprises enclosed cover body 1; Place, center, cover body 1 bottom longitudinally is provided with an open seam 2, and the cover body of open seam 2 both sides extends to form left and right attachment 11,12 respectively downwards, and said insulating cover also comprises the location oat tail groove structure of being located on the left and right attachment 11,12 and making its fixed engagement.
Said insulating cover adopts the shape match mutually of silastic material and its profile and the electric conductor (not shown) of crested, so that dismounting and guarantee that it is safe and reliable.
Embodiment one
See also Fig. 1; In the present embodiment; Said location oat tail groove structure comprises the protruding dovetail groove 31 of being located at left attachment 11 inboards and the recessed dovetail groove 32 of being located at right attachment 12 inboards; Protruding dovetail groove 31 all is swallowtail shape with recessed dovetail groove 32 and matees each other, and protruding dovetail groove 31 is embedded in the recessed dovetail groove 32, thereby makes left and right attachment 11,12 fixed engagement.
Embodiment two
See also Fig. 2, in the present embodiment, said location oat tail groove structure comprises protruding dovetail groove 31 ' and sealing strip 4; Wherein, The top of sealing strip 4 is provided with recessed dovetail groove 32 ', thereby the end of left and right attachment 11,12 stretches out respectively and forms protruding dovetail groove 31 ', and protruding dovetail groove 31 ' and recessed dovetail groove 32 ' all are swallowtail shape and coupling each other; Protruding dovetail groove 31 ' is embedded in the recessed dovetail groove 32 ', thereby makes left and right attachment 11,12 fixed engagement.
In sum, the utility model increases creepage distance through the location oat tail groove structure that concavo-convex coupling is set on the left and right attachment 11,12 of insulating cover, prolongs the gas discharge path, thereby has improved the proof voltage level.Simultaneously, the utility model easy accessibility makes the staff be convenient to carry out live line working, can avoid the generation of outside destroy accident effectively.
Above embodiment only supplies to explain the usefulness of the utility model; But not to the restriction of the utility model; The technical staff in relevant technologies field under the situation of spirit that does not break away from the utility model and scope, can also make various conversion or modification; Therefore all technical schemes that are equal to also should belong to the category of the utility model, should be limited each claim.
Claims (4)
1. insulating cover that can increase creepage distance; This insulating cover comprises enclosed cover body; Place, center, said cover body bottom longitudinally is provided with an open seam; The cover body of said open seam both sides extends to form left and right attachment respectively downwards, it is characterized in that, said insulating cover also comprises the location oat tail groove structure of being located on the left and right attachment and making its fixed engagement.
2. the insulating cover that increases creepage distance according to claim 1 is characterized in that, said insulating cover adopts silastic material.
3. the insulating cover that increases creepage distance according to claim 1 and 2; It is characterized in that; Said location oat tail groove structure comprises is located at inboard protruding dovetail groove of said left attachment and the recessed dovetail groove of being located at said right attachment inboard and being complementary with said protruding dovetail groove, and said protruding dovetail groove is embedded in the said recessed dovetail groove.
4. the insulating cover that increases creepage distance according to claim 1 and 2; It is characterized in that; Said location oat tail groove structure comprises protruding dovetail groove and the sealing strip that is stretched out respectively and formed by left and right attachment end; Said sealing strip top is provided with the recessed dovetail groove that is complementary with said protruding dovetail groove, and said protruding dovetail groove is embedded in the said recessed dovetail groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203344489U CN202260335U (en) | 2011-09-07 | 2011-09-07 | Insulating cover capable of increasing creepage distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203344489U CN202260335U (en) | 2011-09-07 | 2011-09-07 | Insulating cover capable of increasing creepage distance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202260335U true CN202260335U (en) | 2012-05-30 |
Family
ID=46121520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203344489U Expired - Fee Related CN202260335U (en) | 2011-09-07 | 2011-09-07 | Insulating cover capable of increasing creepage distance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202260335U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449611A (en) * | 2016-01-04 | 2016-03-30 | 江苏沙洲电气有限公司 | Parallel groove clamp insulation cover |
| CN107846797A (en) * | 2017-09-27 | 2018-03-27 | 句容市大唐电气有限公司 | A kind of insulating boot of optional individual layer or bilayer |
-
2011
- 2011-09-07 CN CN2011203344489U patent/CN202260335U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449611A (en) * | 2016-01-04 | 2016-03-30 | 江苏沙洲电气有限公司 | Parallel groove clamp insulation cover |
| CN107846797A (en) * | 2017-09-27 | 2018-03-27 | 句容市大唐电气有限公司 | A kind of insulating boot of optional individual layer or bilayer |
| CN107846797B (en) * | 2017-09-27 | 2020-09-11 | 句容市大唐电气有限公司 | Single-layer or double-layer insulation cover |
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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: 20120530 Termination date: 20180907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |