CN202978194U - Medium-voltage power cable reinforcing waterproof drawing head - Google Patents
Medium-voltage power cable reinforcing waterproof drawing head Download PDFInfo
- Publication number
- CN202978194U CN202978194U CN 201220686880 CN201220686880U CN202978194U CN 202978194 U CN202978194 U CN 202978194U CN 201220686880 CN201220686880 CN 201220686880 CN 201220686880 U CN201220686880 U CN 201220686880U CN 202978194 U CN202978194 U CN 202978194U
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- China
- Prior art keywords
- cable
- medium
- gold utensil
- drawing head
- power cable
- 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 - Lifetime
Links
- 230000003014 reinforcing effect Effects 0.000 title abstract 4
- 229920001971 elastomer Polymers 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 30
- 239000010931 gold Substances 0.000 claims description 30
- 229910052737 gold Inorganic materials 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 7
- 239000000565 sealant Substances 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000002788 crimping Methods 0.000 abstract 1
- 239000011241 protective layer Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 240000005572 Syzygium cordatum Species 0.000 description 3
- 235000006650 Syzygium cordatum Nutrition 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000009736 wetting Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model relates to a medium-voltage power cable reinforcing waterproof drawing head which comprises a metal drawing fitting and an elastic rubber pipe. One end of the elastic rubber pipe is fixed on the surface of a second step of an excircle of the metal drawing fitting while the other end of the same is fixed on the surface of an excircle of an inner cable jacket, a flange is mounted in the metal drawing fitting, and three crimping pipes used for mounting a cable core in an inserted manner are mounted on the flange. The medium-voltage power cable reinforcing waterproof drawing head is scientific in design, simple in structure, easy to manufacture, convenient to use and capable of effectively avoiding moisture from permeating into an inner cable protective layer and the cable core, guaranteeing mounting quality and designed service life of the power cable, avoiding project progress delay caused by moisture removal treatment to the cable when project period is short and tasks are heavy, guaranteeing safety and reliability of running of the cable, and fully demonstrating scientificity and effectiveness of designing of the medium-voltage power cable reinforcing waterproof drawing head.
Description
Technical field
The utility model relates to the power cable layer technical field, and especially a kind of medium-pressure power cable is strengthened the water proof type drawing head.
Background technology
Along with the Rapid Implementation of electric network reconstruction in recent years, urban district cable rate improves year by year, and cable line becomes the main service channel of urban district supply network gradually, and therefore annual have a large amount of cable laying work of newly establishing.The Tianjin Power Company requires also further strict to power supply reliability index, the management and control of operation field security risk simultaneously.Find by Field Research, mainly have following problem when adopting at present original cable drawing head cabling:
1, cable drawing head when machinery lays is very easily damaged, when especially laying in meeting a plurality of bending places and cable duct bank, if this moment is when having ponding in cable trough or comb, water just can be immersed in along the breakage of drawing head oversheath, inner sheath and the cable core of cable, next step electric cable accessories that will carry out is installed impact.
2, now the insulation material chosen of medium-pressure power cable mostly is the plastic cables such as crosslinked polyethylene, polyethylene, polyvinyl chloride, in the situation that cable watered and wetting, form water tree in insulation because the effect of electric field and temperature makes, electric field constantly moves water tree, and branch is constantly grown.After watered and wetting cable that installation personnel will be not be processed through humidity discharging completed transition joint, cable line often can appear at that when carrying out the cable commissioning test, transition joint punctures, or the phenomenon that punctures of half a year to transition joint in two years.
If 3, cable has water to enter in laid processes, no matter be that water has entered insulating barrier or conductive surface, the capital makes insulating barrier cause water tree, cause insulation accelerated aging, until puncture, cause cable fault, in cable, water is arranged even find before electric cable accessories is installed, take effective measures also and can waste a lot of human and material resources, particularly time.When, task tight when the duration is heavy, to the cable of watered and wetting carry out time that humidity discharging processes be a few hours to a couple of days, have a strong impact on project progress.
Summary of the invention
The purpose of this utility model is to provide a kind of and has water-proof function, can avoid strengthening the water proof type drawing head because cable advances to make after tide the medium-pressure power cable that cable end causes that test punctures and can the reduction of erection time.
The purpose of this utility model realizes by following technological means:
A kind of medium-pressure power cable is strengthened the water proof type drawing head, it is characterized in that: comprise metallic traction gold utensil and elastic rubber pipe, one end of elastic rubber pipe is fixed on the second step outer round surface of metallic traction gold utensil, and the other end is fixed on the outer round surface of cable inner sheath; Mounting flange in the metallic traction gold utensil is installed three aluminium hydraulic pressed connecting pipes that are used for the plug-in mounting cable core on this ring flange.
And described metallic traction gold utensil is made of tapered end and seamless steel pipe, and the front end of this tapered end is made towing pad, and the rear end of tapered end and seamless steel pipe are loaded into overall structure by being welded to connect.
And, the outer round surface of metallic traction gold utensil seamless steel pipe is made two annular grooves, elastic rubber pipe adopts fluid sealant to be bonded in the outer round surface of metallic traction gold utensil seamless steel pipe, and is fixed on by clip in the annular groove of outer round surface of metallic traction gold utensil seamless steel pipe.
And described elastic rubber pipe adopts fluid sealant to be bonded in the outer round surface of cable inner sheath, and fixes by iron wire and cable inner sheath.
And, thermoplastic sealed tube that is used for fixing metal pulling hardware and cable jacket of the outside coaxial package of described metallic traction gold utensil and cable jacket.
And the engagement of described ring flange coaxial threaded is arranged in the metallic traction gold utensil, uniformly on ring flange makes three installing holes, and the front end of aluminium hydraulic pressed connecting pipe is arranged in installing hole, and fixes by nut.
Advantage of the present utility model and good effect are:
1, the metallic traction gold utensil material of this drawing head is steel, it is become by the design size car by round steel and seamless steel pipe and is welded to connect as a whole structure, its Main Function be the pulling force of transmitting tractive steel wire rope to the core of power cable, and guarantee self water-tight performance.
2, the material of the elastic rubber pipe of this drawing head is industrial rubber or latex, produce by design size, Main Function is connection metal pulling hardware outer round surface and cable inner sheath outer round surface, guarantees that the metallic traction gold utensil is to the water-tight performance of the three-core cable of removing inner sheath in the cable laying process.
3, this drawing head is little to the stripping size of cable, sealing property is good, has good waterproof effect.In addition, annular groove is made on metallic traction gold utensil surface, and adopts the fixedly mode of elastic rubber pipe of the gluing and clip of fluid sealant and iron wire, has further strengthened the water resistance of this drawing head.
4, the utility model is a kind of design science, simple in structure, easy to manufacture, medium-pressure power cable easy to use is strengthened the water proof type drawing head, owing to adopting elastic rubber pipe to connect between the metallic traction gold utensil of this drawing head and cable inner sheath, therefore damaged and cause the infiltration of moisture in cable sheath and cable core in the time of effectively avoiding the relative inner sheath of cable cable core in laid processes to produce larger displacement, guarantee the installation quality of cable, guarantee the design service life of power cable, avoid incuring loss through delay project progress because cable being carried out the humidity discharging processing when the duration, tight task was heavy, guarantee the safe and reliable operation of cable, the sufficient proof medium-pressure power cable is strengthened science and the validity of water proof type drawing head design.
Description of drawings
Fig. 1 is front view of the present utility model (analysing and observe);
Fig. 2 is the end view of ring flange in Fig. 1.
Embodiment
Be described in detail embodiment of the present utility model below in conjunction with accompanying drawing; Need to prove, the present embodiment is narrative, is not determinate, can not limit protection range of the present utility model with this.
A kind of medium-pressure power cable is strengthened the water proof type drawing head, comprises metallic traction gold utensil and elastic rubber pipe 9.The metallic traction gold utensil is made of tapered end 2 and seamless steel pipe 3, and the front end of this tapered end is made towing pad 1, and rear end and the seamless steel pipe of tapered end are loaded into overall structure by welding.
The metallic traction gold utensil is inner installs a ring flange 5 by the coaxial engagement of screw thread, uniformly on ring flange makes three installing holes 14, and the quantity of installing hole quantity and cable core 8 matches.An aluminium hydraulic pressed connecting pipe 6 that is used for the plug-in mounting cable core all is installed in each installing hole, and the front end of each aluminium hydraulic pressed connecting pipe is all fixing by nut 4.
The front end of elastic rubber pipe is fixed on the second step outer round surface of metallic traction gold utensil, its concrete structure is: the outer round surface of metallic traction gold utensil seamless steel pipe is made two annular grooves, elastic rubber pipe adopts fluid sealant to be bonded in metallic traction gold utensil second step outer round surface, and is fixed on by clip 7 in the annular groove of second step outer round surface of metallic traction gold utensil.
The rear end of elastic rubber pipe is fixed on the outer round surface of cable inner sheath 11, and its concrete structure is: elastic rubber pipe adopts fluid sealant to be bonded in the outer round surface of cable inner sheath, and fixes by iron wire 12 and cable inner sheath.
Thermoplastic sealed tube 10 that is used for fixing metal pulling hardware and cable jacket of the outside coaxial package of metallic traction gold utensil and cable jacket 13.
Claims (6)
1. a medium-pressure power cable is strengthened the water proof type drawing head, it is characterized in that: comprise metallic traction gold utensil and elastic rubber pipe, one end of elastic rubber pipe is fixed on the second step outer round surface of metallic traction gold utensil, and the other end is fixed on the outer round surface of cable inner sheath; Mounting flange in the metallic traction gold utensil is installed three aluminium hydraulic pressed connecting pipes that are used for the plug-in mounting cable core on this ring flange.
2. a kind of medium-pressure power cable according to claim 1 is strengthened the water proof type drawing head, it is characterized in that: described metallic traction gold utensil is made of tapered end and seamless steel pipe, the front end of this tapered end is made towing pad, and the rear end of tapered end and seamless steel pipe are loaded into overall structure by being welded to connect.
3. a kind of medium-pressure power cable according to claim 2 is strengthened the water proof type drawing head, it is characterized in that: the outer round surface of described metallic traction gold utensil seamless steel pipe is made two annular grooves, elastic rubber pipe adopts fluid sealant to be bonded in the outer round surface of metallic traction gold utensil seamless steel pipe, and is fixed on by clip in the annular groove of outer round surface of metallic traction gold utensil seamless steel pipe.
4. a kind of medium-pressure power cable according to claim 1 is strengthened the water proof type drawing head, it is characterized in that: described elastic rubber pipe adopts fluid sealant to be bonded in the outer round surface of cable inner sheath, and fixes by iron wire and cable inner sheath.
5. a kind of medium-pressure power cable according to claim 1 is strengthened the water proof type drawing head, it is characterized in that: thermoplastic sealed tube that is used for fixing metal pulling hardware and cable jacket of the outside coaxial package of described metallic traction gold utensil and cable jacket.
6. a kind of medium-pressure power cable according to claim 1 is strengthened the water proof type drawing head, it is characterized in that: described ring flange coaxial threaded engagement is arranged in the metallic traction gold utensil, uniformly on ring flange make three installing holes, the front end of aluminium hydraulic pressed connecting pipe is arranged in installing hole, and fixes by nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220686880 CN202978194U (en) | 2012-12-13 | 2012-12-13 | Medium-voltage power cable reinforcing waterproof drawing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220686880 CN202978194U (en) | 2012-12-13 | 2012-12-13 | Medium-voltage power cable reinforcing waterproof drawing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978194U true CN202978194U (en) | 2013-06-05 |
Family
ID=48519221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220686880 Expired - Lifetime CN202978194U (en) | 2012-12-13 | 2012-12-13 | Medium-voltage power cable reinforcing waterproof drawing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978194U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104158140A (en) * | 2014-08-22 | 2014-11-19 | 陈玲 | Sealing and water-proofing sheath for cable connector |
| CN104752847A (en) * | 2015-04-03 | 2015-07-01 | 国家电网公司 | Three-core crosslinked cable prefabricated traction wire clamp technology |
| CN110212460A (en) * | 2019-06-25 | 2019-09-06 | 国网上海市电力公司 | The coupling hitch of hyperconductive cable |
| CN111864639A (en) * | 2020-08-18 | 2020-10-30 | 国网上海市电力公司 | Traction head for laying high-temperature superconducting cable |
-
2012
- 2012-12-13 CN CN 201220686880 patent/CN202978194U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104158140A (en) * | 2014-08-22 | 2014-11-19 | 陈玲 | Sealing and water-proofing sheath for cable connector |
| CN104158140B (en) * | 2014-08-22 | 2017-10-10 | 上海锐朗光电材料有限公司 | A kind of cable connector seals water-proof jacket |
| CN104752847A (en) * | 2015-04-03 | 2015-07-01 | 国家电网公司 | Three-core crosslinked cable prefabricated traction wire clamp technology |
| CN110212460A (en) * | 2019-06-25 | 2019-09-06 | 国网上海市电力公司 | The coupling hitch of hyperconductive cable |
| CN111864639A (en) * | 2020-08-18 | 2020-10-30 | 国网上海市电力公司 | Traction head for laying high-temperature superconducting cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |