CN203465987U - Composite insulator - Google Patents
Composite insulator Download PDFInfo
- Publication number
- CN203465987U CN203465987U CN201320491188.5U CN201320491188U CN203465987U CN 203465987 U CN203465987 U CN 203465987U CN 201320491188 U CN201320491188 U CN 201320491188U CN 203465987 U CN203465987 U CN 203465987U
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- CN
- China
- Prior art keywords
- core rod
- button member
- composite insulator
- metal button
- plug
- 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 composite insulator which comprises a core rod. Silicone-rubber umbrella sleeves are arranged on the core rod, an upper metal buckle and a lower metal buckler are respectively arranged at the two ends of the core rod, a rubber-guiding covered groove is arranged in the upper metal buckle, and tensile grooves are respectively arranged in side surfaces of the upper and lower metal buckles, wherein the upper and lower metal buckles are both made of cast iron, and the core rod is a boron-free fiber acid-resistant core rod. According to the composite insulator of the utility model, high-temperature-resistant silicone rubber is guided into the covered groove during the primary high-temperature molding after fastening via the rubber-guiding covered groove arranged in the upper metal buckle, so that the core rod is more closely combined with the upper metal buckle; and the tensile grooves arranged in the side surfaces of the upper and lower metal buckles can effectively enhance the sealing performance between the metal buckles and the core rod and reduce occurrence of brittle failure.
Description
Technical field
The utility model is specifically related to a kind of insulator, relates in particular to a kind of composite insulator.
Background technology
Insulator is the necessary supply on high pressure, ultrahigh voltage power conveying circuit, only has the earliest porcelain and glass insulator, and to nineteen seventies, first high-temperature silicon disulfide rubber composite insulator comes out in Germany.Composite insulator is comprised of connection gold utensil three parts at insulation mandrel, silicon rubber umbrella and two ends, adopt integrated injection compression technology to process, have excellent type suspension type, compound needle type, composite post, compound cross-arm, composite dry-type wall bushing type, electric railway with composite insulator etc.Compare the advantages such as that composite insulator has is lightweight, intensity large, resistant dodges that ability is strong, maintenance and convenient transportation with the conventional insulators such as porcelain, glass.
But existing composite insulator exists the situation that easily causes brittle failure, generally all there is the situation of sheath or end part seal breakage in the composite insulator that brittle failure occurs.Insulator is all because end part seal does not sternly cause moisture intrusion and then caused brittle failure.Core brittle fracture has become the most serious accident that current composite insulator occurs, and this phenomenon is particularly outstanding in supertension line.So-called " brittle failure " refers to that plug glass fibre is subject to acid solution and corrodes, and under very low load, plug fiber ruptures gradually, and final whole plug ruptures.An obvious characteristic of brittle failure is exactly that fracture is neat, level and smooth.Composite insulator brittle failure can occur in 1 ~ 3 a that puts into operation, and also can after operation 8 ~ 9 a, occur, and has very large randomness.
Utility model content
Poorly sealed in order to overcome in prior art composite electric insulator core bar and metal button member, cause the problem of brittle failure.Upper metal button member of the present utility model inside is provided with draws glue undercut, after fastening, high-temperature-resisting silicon rubber is introduced in undercut during a hot press moulding, its plug and upper metal button member are more closely merged, increase it and attached power, sealability, reduces brittle failure and occurs, simplicity of design, easily realize, have a good application prospect.
In order to achieve the above object, the technical scheme that the utility model adopts is:
Composite insulator, comprises plug, is provided with silicon rubber umbrella on plug, and described plug two ends are respectively arranged with metal button member and lower metal button member, and described upper metal button member inside is provided with draws glue undercut.
Aforesaid composite insulator, the side of described upper metal button member and lower metal button member is provided with tension groove.
Aforesaid composite insulator, described upper metal button member and lower metal button member are cast iron fastener.
Aforesaid composite insulator, described plug is without the acidproof plug of boron fibre.
The beneficial effects of the utility model are: composite insulator of the present utility model is provided with and draws glue undercut in upper metal button member inside, after fastening, high-temperature-resisting silicon rubber is introduced in undercut during a hot press moulding, its plug and upper metal button member are more closely merged, at upper metal button member and lower metal button member side, tension groove is all set, can effectively increase the sealability between metal button member and plug, reduce brittle failure and occur.
Accompanying drawing explanation
Fig. 1 is the structural representation of composite insulator of the present utility model.
The mark implication of accompanying drawing is as follows:
101: plug; 102: upper metal button member; 103: lower metal button member; 104: draw glue undercut; 105: silicon rubber umbrella; 106 tension grooves.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
Composite insulator of the present utility model as shown in Figure 1, comprise without the acidproof plug 101 of boron fibre, plug 101 is cylindrical, on plug 101, be provided with four silicon rubber umbrellas 105, plug 101 two ends are respectively arranged with metal button member 102 and lower metal button member 103, upper metal button member 102 inside are provided with draws glue undercut 104, after upper metal button member 102 and plug 101 fastenings, high-temperature-resisting silicon rubber is drawn in glue undercut 104 during a hot press moulding, plug 101 and upper metal button member are more closely merged, increased it and attached power, sealability; The side of upper metal button member 102 and lower metal button member 103 is provided with tension groove 106, while utilizing mold pressing, high-temperature-resisting silicon rubber is introduced in tension groove 106, forms embedded equipment, increases tension and sealability, reduces brittle failure and occurs.Wherein go up metal button member 102 and lower metal button member 103 is cast iron fastener.
More than show and described basic principle of the present utility model, principal character and advantage.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. a composite insulator, comprises plug, is provided with silicon rubber umbrella on plug, and described plug two ends are respectively arranged with metal button member and lower metal button member, it is characterized in that: described upper metal button member inside is provided with draws glue undercut.
2. composite insulator according to claim 1, is characterized in that: the side of described upper metal button member and lower metal button member is provided with tension groove.
3. composite insulator according to claim 1 and 2, is characterized in that: described upper metal button member and lower metal button member are cast iron fastener.
4. composite insulator according to claim 1, is characterized in that: described plug is without the acidproof plug of boron fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320491188.5U CN203465987U (en) | 2013-08-13 | 2013-08-13 | Composite insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320491188.5U CN203465987U (en) | 2013-08-13 | 2013-08-13 | Composite insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203465987U true CN203465987U (en) | 2014-03-05 |
Family
ID=50178335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320491188.5U Expired - Fee Related CN203465987U (en) | 2013-08-13 | 2013-08-13 | Composite insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203465987U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107644721A (en) * | 2017-08-19 | 2018-01-30 | 芜湖市凯鑫避雷器有限责任公司 | A kind of suspension type composite silicone rubber insulator structure |
-
2013
- 2013-08-13 CN CN201320491188.5U patent/CN203465987U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107644721A (en) * | 2017-08-19 | 2018-01-30 | 芜湖市凯鑫避雷器有限责任公司 | A kind of suspension type composite silicone rubber insulator structure |
| CN107644721B (en) * | 2017-08-19 | 2019-03-19 | 芜湖市凯鑫避雷器有限责任公司 | A kind of suspension type composite silicone rubber insulator structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20150813 |
|
| EXPY | Termination of patent right or utility model |