CN202978203U - Novel intermediate joint made of silicon rubber - Google Patents
Novel intermediate joint made of silicon rubber Download PDFInfo
- Publication number
- CN202978203U CN202978203U CN 201220697714 CN201220697714U CN202978203U CN 202978203 U CN202978203 U CN 202978203U CN 201220697714 CN201220697714 CN 201220697714 CN 201220697714 U CN201220697714 U CN 201220697714U CN 202978203 U CN202978203 U CN 202978203U
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- insulating barrier
- high pressure
- inner shield
- pressure inner
- intermediate joint
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Abstract
The utility model relates to an accessory of a power cable, in particular to an intermediate joint which can be applied to connecting cables with different sizes and comprises an insulating layer, an inner high-voltage shielding tube and stress cones. The insulating layer is of an integrated structure, the inner high-voltage shielding tube is nested in the insulating layer, and the stress cones are positioned at two ends of the insulating layer. The novel intermediate joint is characterized in that bumps which are used for being in contact with connecting pipe joints of the cables are arranged on the inner wall of the inner high-voltage shielding tube. The novel intermediate joint has the advantages that the novel intermediate joint is high in safety performance, simple in structure and convenient to install, and can be applied to connecting the cables with the different sizes.
Description
Technical field
The utility model relates to a kind of electric cable fitting, especially a kind of transition joint that can be applied to the connection of different size cable.
Background technology
In setting up the process of electrical network, often need to dock two or many cables, then also need to recover each structure sheaf of cable to guarantee the basic electric property energy of cable.In this process, the docking annex that generally uses at present mostly is cold-shrinking intermediate joint and prefabricated terminals.Wherein the prefabricated terminals are because be the split setting, specification is more, when docking each annex need to be corresponding one by one with the cross section of cable socket, need only that cable moves or bending just is easy to cause docking unsuccessful, cable is inner easily throws off, and certain potential safety hazard is arranged.Cold-shrinking intermediate joint generally adopts the integrally manufactured complete tubulose of the good silastic material of performance, more convenient safety in use, but because need when practical operation the accurate centre position of location cold-shrinking intermediate joint to guarantee stable and mechanical strength consistent of cable connection point two ends electric field, avoid producing the phenomenon of electric shock or insulation breakdown, it is opaque that silastic material mostly is, the bubble that easily produces in production process, impurity and stress cone displacement affect product quality.
In order to address the above problem, the cold-shrinking intermediate joint that the utility model of China Granted publication CN 202550465 U provides a kind of cable termination to use, comprise outer shielding layer, insulating barrier and internal shield, described outer shielding layer is coated on the outside of insulating barrier, and the inside of described insulating barrier is embedded with internal shield; On position corresponding to internal shield, in the arranged outside of insulating barrier, locating ring is arranged, locating ring is the annular ring along projection on the outer shielding layer axial direction.The cold-shrinking intermediate joint that this utility model provides, owing to being provided with locating ring outside transition joint, location that can be accurate and visual in the time of abutting joint, the fitting operation simple and fast has also directly been avoided the generation of electric shock or insulation breakdown hidden danger.This utility model is by realizing the accurate location of cable at the arranged outside locating ring of insulating barrier, elimination, electric shock or insulation breakdown hidden danger, but this utility model need to arrange new parts, and complex structure is installed comparatively loaded down with trivial detailsly, and has improved production cost.
Summary of the invention
The utility model provides a kind of security performance high, simple in structure, easy for installation for the deficiency that prior art exists, and can be applied to the transition joint that the different size cable connects.
The technical solution of the utility model is: a kind of new type silicone rubber transition joint, comprise insulating barrier, high pressure inner shield pipe and stress cone, described insulating barrier is the integral type structure, high pressure inner shield pipe is nested in insulating barrier, stress cone is positioned at insulating barrier two ends, it is characterized in that: high pressure inner shield inside pipe wall is provided with the projection for contact cable connection tube joint.
Described projection is the inverted trapezoidal shape, is positioned in the middle part of high pressure inner shield inside pipe wall.
Described projection is 3-6.
The utlity model has following advantage:
1, by in high pressure inner shield pipe, some projections being set, solve high pressure inner shield and conductor connecting tube loose contact, avoided the generation of suspended voltage, caused the shortcoming of insulation breakdown, can be applicable to the different size cable and connect, improve the stability of cable electrical performance;
2, the utility model is simple in structure, and projection is the integral type structure with high pressure inner shield pipe, and not needing increases new parts, has simplified installation procedure, has saved simultaneously the production material;
3, the transition joint parts are all first made water white parts, and the waste product that bubble, impurity and the stress cone of having avoided production process to produce is shifted guarantees product quality.
Description of drawings
Accompanying drawing 1 is the structural representation of new type silicone rubber transition joint described in the utility model.
Accompanying drawing 2 is the end view of new type silicone rubber transition joint described in the utility model.
In figure: 1-insulating barrier, 2-projection, 3-high pressure inner shield pipe, 4-stress cone, 5-cable.
Embodiment
Below in conjunction with embodiment, the utility model is described further:
In the present embodiment, as shown in Figure 1 and Figure 2, a kind of new type silicone rubber transition joint, comprise insulating barrier 1, high pressure inner shield pipe 3 and stress cone 4, insulating barrier 1 is the integral type structure, high pressure inner shield pipe 3 is nested in insulating barrier 1, and stress cone 4 is positioned at insulating barrier 1 two ends, and high pressure inner shield pipe 3 inwalls are provided with the projection 2 for contact cable 5 tube connector joints.
In the present embodiment, be provided with 3 projections 2 that are the inverted trapezoidal shape in high pressure inner shield pipe 3, projection 2 is the integral type structure with high pressure inner shield pipe 3, HTHP injection moulding in special mould, do not need to increase new parts, compare with traditional installation procedure, simplified operation, reduced production cost.
Insulating barrier 1 outside is coated with external shield, and port position is provided with stress cone 4 at the two ends of insulating barrier 1, and the internal diameter of stress cone 4 matches with insulating barrier 1 external diameter of the cable of installing 5.Outside insulating barrier 1 one ends, the spiral draw runner is installed, the spiral draw runner is provided with lead end, insulating barrier 1 is straight-through insulating body, adopt liquid silicon rubber material, keep that semiconductive stress cone 4 is electric, stable mechanical performance and liquid semiconductive material and liquid insulating material bonding interface long time stability, have good anti-flammability, explosion-proof, resistance to soiling, uvioresistant, ageing resistance and hydrophobicity.
What the transition joint of this new type silicone rubber can be prefabricated also can be cold-contraction type, being applicable to prefabricated installation and cold-contraction type installs, main by draw runner prefabricated mounting means in the present embodiment, when transition joint is installed, only need to set what a datum mark in the end of cable, then transition joint is sleeved on stripping good cable core junction, wherein, high pressure inner shield inside pipe wall is provided with the projection for contact cable connection tube joint, and the distance of datum mark and cable connection point need to arrive distance between reference identical with projection.Accurately behind the location, only need to pull the exit on draw runner, the draw runner that spiral forms is namely pulled open by the helix impression, because projection adopts the semi-conductive adhesive material, the screens point by projection with and elastical retraction, projection closely overlays on cable, completes installation.Be provided with for the projection that contacts the cable connection tube joint by high pressure inner shield inside pipe wall, the high pressure inner shield is contacted well with conductor connecting tube, avoided the generation of suspended voltage, cause the shortcoming of insulation breakdown.
The utility model is by arranging some projections that are the inverted trapezoidal shape in high pressure inner shield pipe, high pressure inner shield and conductor connecting tube loose contact have been solved, avoided the generation of suspended voltage, the shortcoming that causes insulation breakdown, can be applicable to the different size cable and connect, improve the stability of cable electrical performance.
Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. new type silicone rubber transition joint, comprise insulating barrier, high pressure inner shield pipe and stress cone, described insulating barrier is the integral type structure, high pressure inner shield pipe is nested in insulating barrier, stress cone is positioned at insulating barrier two ends, it is characterized in that: described high pressure inner shield inside pipe wall is provided with the projection for contact cable connection tube joint.
2. new type silicone rubber transition joint as claimed in claim 1, it is characterized in that: described projection is the inverted trapezoidal shape, is positioned in the middle part of high pressure inner shield inside pipe wall.
3. new type silicone rubber transition joint as claimed in claim 1 or 2 is characterized in that: described projection is 3-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220697714 CN202978203U (en) | 2012-12-17 | 2012-12-17 | Novel intermediate joint made of silicon rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220697714 CN202978203U (en) | 2012-12-17 | 2012-12-17 | Novel intermediate joint made of silicon rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978203U true CN202978203U (en) | 2013-06-05 |
Family
ID=48519230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220697714 Expired - Fee Related CN202978203U (en) | 2012-12-17 | 2012-12-17 | Novel intermediate joint made of silicon rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978203U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618279A (en) * | 2013-12-05 | 2014-03-05 | 浙江图维电力科技有限公司 | High-voltage cable connector accessory provided with insulation sleeve and infrared temperature measurement method thereof |
| CN103928852A (en) * | 2014-04-30 | 2014-07-16 | 江苏精一电气科技有限公司 | Ultrahigh-power booth box |
| CN107706879A (en) * | 2017-11-07 | 2018-02-16 | 广州高力电缆附件有限公司 | A kind of cable intermediate joint and its fabrication and installation method |
| CN113258337A (en) * | 2021-05-13 | 2021-08-13 | 广州高力电缆附件有限公司 | Cable crimping pipe and crimping die and cable connector containing same |
-
2012
- 2012-12-17 CN CN 201220697714 patent/CN202978203U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618279A (en) * | 2013-12-05 | 2014-03-05 | 浙江图维电力科技有限公司 | High-voltage cable connector accessory provided with insulation sleeve and infrared temperature measurement method thereof |
| CN103618279B (en) * | 2013-12-05 | 2016-05-25 | 浙江图维科技股份有限公司 | High-voltage cable joint annex and the infrared measurement of temperature method thereof of tape insulation cover |
| CN103928852A (en) * | 2014-04-30 | 2014-07-16 | 江苏精一电气科技有限公司 | Ultrahigh-power booth box |
| CN107706879A (en) * | 2017-11-07 | 2018-02-16 | 广州高力电缆附件有限公司 | A kind of cable intermediate joint and its fabrication and installation method |
| CN113258337A (en) * | 2021-05-13 | 2021-08-13 | 广州高力电缆附件有限公司 | Cable crimping pipe and crimping die and cable connector containing same |
| CN113258337B (en) * | 2021-05-13 | 2022-07-12 | 广州高力电缆附件有限公司 | Cable crimping pipe and crimping die and cable connector containing same |
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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: 20130605 Termination date: 20211217 |