CN205646759U - Shrinkage cable intermediate head - Google Patents
Shrinkage cable intermediate head Download PDFInfo
- Publication number
- CN205646759U CN205646759U CN201620273489.4U CN201620273489U CN205646759U CN 205646759 U CN205646759 U CN 205646759U CN 201620273489 U CN201620273489 U CN 201620273489U CN 205646759 U CN205646759 U CN 205646759U
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- cable
- utility
- constant force
- model
- tin
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Abstract
The utility model provides a shrinkage cable intermediate head, the utility model discloses a multiple layer sealing structure, by interior in proper order for connecting base member, silicon rubber intermediate head, tin -plating shielding net, waterproof self -adhesion sticky tape, tin -coated copper earth connection, armor area outside to, it includes conductor connecting pipe, the electric cable core through conductor connecting pipe interconnect, cable insulation and connects the base member both ends and adopt the stress cone structure to connect the base member. The utility model discloses a stress cone structure control cable shield cuts off an electric field stress, utilizes the material close with cable semi -conductive layer characteristic, and the part of making corresponding geometry reaches dispersed electric field stress's purpose, the reasonable practicality of product structure, next adopts embedded shielded -plate tube technique to improve and eliminates the electric field distortion influence that metallic conductor connects the position, final design multiple layer sealing, protection architecture guarantee various safe operations of burying the mode of applying cable.
Description
Technical field
This utility model belongs to electric equipment field, is specifically related to a kind of cold contract cable middle joint.
Background technology
In order to improve power supply reliability, urban electricity supply circuit is more and more uses power cable, uses in the middle of cable
Joint realizes the connection of cable and cable.The cable intermediate joint number of stoppages account for cable fault total degree 70% with
On, transition joint fault can make whole piece line outage two to five hours, leverages urban electricity supply reliability.
The heat produced because of reasons such as the high contact resistance of intermediate joint of electric cable, shelf depreciation accumulation makes in the middle of cable
The temperature of joint constantly raises, and aging, the discharge current of accelerating cable insulation material incrementally increase, and arrives certain
Degree causes puncturing or fire.Simultaneously when cable use various bury application mode install when, due to residing
Easily cause the local corrosion of cable in underground, thus affect cable performance.
Utility model content
For the problems referred to above, this utility model provides a kind of cold contract cable middle joint.
A kind of cold contract cable middle joint, it is characterised in that: this utility model uses multi-layer sealing structure, by interior
Be followed successively by connection matrix to outward, silicone rubber transition joint, tin plating gauze screen, water-proof self-adhesion adhesive tape, tin-coated copper connect
Ground wire, armoring tape, described connection matrix includes conductor connecting tube, by the interconnective cable of conductor connecting tube
Core, cable insulation and connection matrix two ends use stress cone structure.
Also include that constant force spring, described constant force spring constitute socket with tin plating gauze screen and coordinate.
Described constant force spring is circumferentially with the PVC tape layer of cladding constant force spring.
Beneficial effect: this utility model uses stress cone structure control cable shield cut-off part electric field stress, utilizes
With the material of cable semi-conductive layer characteristic close, the parts making corresponding geometry reach to disperse electric field stress
Purpose, product structure is reasonable and practical；Secondly use embedded shielded-plate tube technology to improve and eliminate metallic conductor even
Connect the electric field distortion impact at position；Finally design multi-layer sealed, protection structure and various bury application mode cable ensureing
Safe operation.
Accompanying drawing explanation
Accompanying drawing 1 is overall schematic of the present utility model.
1 armoring tape, 2 tin-coated copper earth leads, 3 water-proof self-adhesion adhesive tapes, 4 tin plating gauze screens, 5 constant force springs,
6PVC adhesive tape layer, 7 cable insulations, 8 cable cores, 9 silicone rubber transition joints.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is further illustrated by embodiment:
A kind of cold contract cable middle joint, this utility model is overall in shuttle-type structure, including middle connecting portion,
Both sides have the connection cable at the transition part at certain inclination angle, two ends；Middle connecting portion uses multi-layer sealing structure,
From inside to outside be followed successively by connection matrix, silicone rubber transition joint 9, tin plating gauze screen 4, water-proof self-adhesion adhesive tape 3,
Tin-coated copper earth lead 2, armoring tape 1, described connection matrix includes conductor connecting tube, by conductor connecting tube phase
The cable core 8, cable insulation 7 and the connection matrix two ends that connect use stress cone structure.This practicality is new
Type uses stress cone structure control cable shield cut-off part electric field stress, utilizes and cable semi-conductive layer characteristic close
Material, make the parts of corresponding geometry and reach to disperse the purpose of electric field stress, product structure is rationally real
With；Secondly use embedded shielded-plate tube technology to improve and eliminate the electric field distortion impact of metallic conductor connecting portion；
Finally design multi-layer sealed, protection structure to ensure the various safe operation burying application mode cable.
Being provided with constant force spring 5 in described transition part, described constant force spring 5 constitutes socket with tin plating gauze screen 4 and joins
Close, be used for fixing tin plating gauze screen 4.
Described constant force spring 5 is circumferentially with the PVC tape layer 6 of cladding constant force spring 5, is used for protecting constant force bullet
Spring 5.
Obviously, above-described embodiment of the present utility model is merely to illustrate that this utility model example, and
The not restriction to embodiment of the present utility model.For those of ordinary skill in the field, upper
State bright on the basis of can also make change or the variation of other multi-forms.Here without also cannot be to all
Embodiment give poor example.And these belong to that connotation of the present utility model amplified out obvious
Change or variation still fall within protection domain of the present utility model.
Claims (3)
1. a cold contract cable middle joint, it is characterised in that: this utility model uses multi-layer sealing structure, by interior
Connection matrix, silicone rubber transition joint (9), tin plating gauze screen (4), water-proof self-adhesion adhesive tape it is followed successively by outward
(3), tin-coated copper earth lead (2), armoring tape (1), described connection matrix includes conductor connecting tube, logical
Cross the interconnective cable core of conductor connecting tube (8), cable insulation (7) and connect the employing of matrix two ends
Stress cone structure.
A kind of cold contract cable middle joint the most according to claim 1, it is characterised in that: also include constant force bullet
Spring (5), described constant force spring (5) constitutes socket with tin plating gauze screen (4) and coordinates.
A kind of cold contract cable middle joint the most according to claim 2, it is characterised in that: described constant force spring
(5) the PVC tape layer (6) of cladding constant force spring (5) it is circumferentially with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620273489.4U CN205646759U (en) | 2016-03-29 | 2016-03-29 | Shrinkage cable intermediate head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620273489.4U CN205646759U (en) | 2016-03-29 | 2016-03-29 | Shrinkage cable intermediate head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205646759U true CN205646759U (en) | 2016-10-12 |
Family
ID=57067187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620273489.4U Expired - Fee Related CN205646759U (en) | 2016-03-29 | 2016-03-29 | Shrinkage cable intermediate head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205646759U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769147A (en) * | 2017-11-21 | 2018-03-06 | 安徽伊法拉电气有限公司 | A kind of 35kv shrinkages joint |
| CN107895928A (en) * | 2017-11-21 | 2018-04-10 | 安徽伊法拉电气有限公司 | A kind of cold-shrinking intermediate joint with heat sinking function |
-
2016
- 2016-03-29 CN CN201620273489.4U patent/CN205646759U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769147A (en) * | 2017-11-21 | 2018-03-06 | 安徽伊法拉电气有限公司 | A kind of 35kv shrinkages joint |
| CN107895928A (en) * | 2017-11-21 | 2018-04-10 | 安徽伊法拉电气有限公司 | A kind of cold-shrinking intermediate joint with heat sinking function |
| CN107769147B (en) * | 2017-11-21 | 2020-02-07 | 安徽伊法拉电气有限公司 | 35kv cold-shrink joint |
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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: 20161012 Termination date: 20170329 |