CN2718870Y - Waterproof electric cable intermediate joint - Google Patents
Waterproof electric cable intermediate joint Download PDFInfo
- Publication number
- CN2718870Y CN2718870Y CN 200420002753 CN200420002753U CN2718870Y CN 2718870 Y CN2718870 Y CN 2718870Y CN 200420002753 CN200420002753 CN 200420002753 CN 200420002753 U CN200420002753 U CN 200420002753U CN 2718870 Y CN2718870 Y CN 2718870Y
- Authority
- CN
- China
- Prior art keywords
- cable
- joint
- intermediate joint
- electrical cable
- sheath
- 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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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model provides a waterproof electric cable intermediate joint, comprising an electrical cable outer protecting layer, an electrical cable armoring layer, an electrical cable internal protecting layer, three cable cores, three joint body which are in correspondent connection with each other, an inner sheath tube whose two ends are respectively sheathed with the electrical cable protective layer and an outer sheath tube whose two ends are respectively sheathed with the electrical cable outer protective layer. The waterproof electric cable intermediate joint is characterized in that the clearance of each cable core of the internal of the inner sheath tube is also provided with an elastic insulation waterproof agent layer. By adopting the utility model, the problem that the moisture can immerse electric cable intermediate joint can be solved; the need of bending and movement of the electrical cable joint can be satisfied; the waterproof electric cable intermediate joint is practical thereby.
Description
Technical field
The transition joint of the utility model power cable, the transition joint of particularly a kind of water proof type power cable.It is the improvement of prior art.
Background technology
In the prior art, general main 3 joint bodies that connect each cable core by protective coverings of cable, cable sheath, cable sheath, 3 cable cores, difference correspondences of power cable transition joint, two ends respectively with the inner sheath pipe of cable sheath socket, two ends are formed with the oversheath pipe of protective coverings of cable socket respectively; For preventing that moisture from entering in the transition joint, generally be to adopt water blocking tape to twine the method for joint body end, but because after adopting this mode, the waterproof belt and the layer between and still have the gap between water blocking tape and the cable core, sealing is relatively poor, moisture also might enter thus, and in use still there is more serious potential safety hazard in power cable.
Summary of the invention
The purpose of this utility model is intended to overcome above-mentioned deficiency of the prior art, by the waterproofing agent layer that fills up is set, thereby provide a kind of water proof type power cable transition joint that can effectively stop moisture content to enter joint inside between the gap of inner each cable core of inner sheath pipe.
Technical solution of the present utility model is: the transition joint of a kind of water proof type power cable, comprise: protective coverings of cable, cable sheath, cable sheath, 3 cable cores, difference correspondences connect 3 joint bodies of each cable core, two ends respectively with the inner sheath pipe of cable sheath socket, two ends respectively with the oversheath pipe of protective coverings of cable socket, it is characterized in that: also be provided with rubber-like insulative water-proof agent layer (7) between the gap of inner each cable core of described inner sheath pipe (6) (4).
In the technical solution of the present utility model: the inwall of described inner sheath pipe (6) (for example: polyester film etc.) also is provided with plastic film layers (9).
Compared with prior art, the utlity model has following characteristics:
(1) the waterproofing agent layer that fills up is set between each cable core of inner sheath pipe, can effectively stops moisture content to enter joint inside, good seal performance, power cable is safe in utilization;
(2) adopt resilient insulative water-proof agent layer, the cable connecting part position after the installation has pliability, can make things convenient for the bending of cable to reach mobile;
(3) simple in structure, easy to operate easy, practical.
Description of drawings
Fig. 1 is the utility model example structure schematic diagram.
Among the figure: 1-protective coverings of cable, 2-cable sheath, 3-cable sheath, 4-cable core, 5-joint body, 6-inner sheath pipe, the resilient insulative water-proof agent of 7-layer, 8-oversheath pipe, 9-plastic film layers.
Embodiment
Embodiment 1:
The transition joint of a kind of water proof type power cable, mainly by: protective coverings of cable 1, cable sheath 2,3,3 cable cores 4 of cable sheath, corresponding 3 joint bodies 5 that connect each cable core 4 respectively, two ends respectively with the inner sheath pipe 6 of cable sheath 3 sockets, two ends respectively with the oversheath pipe 8 of protective coverings of cable 1 socket, be arranged on the rubber-like insulative water-proof agent layer 7 between the gap of inner each cable core 4 of inner sheath pipe 6, and plastics (polyester) thin layer 9 that is arranged at inner sheath pipe 6 inwalls is formed.
The present embodiment processing method can be: in power cable transition joint site operation process, after the copper shield band of cable three-phase cable and intercoil connection recover, be wrapped in (or other flexible packages are enclosed within on the cable sheath 3) on the cable sheath 3 with polyester film 9, container as filler, then waterproofing agent is poured into wherein, carried out cast-in-site.Because there is extremely strong adhesion on the surface of waterproofing agent and transition joint body 5 and cable core 4, waterproofing agent is frozen into solid-state from liquid condition simultaneously, can fill up the contact gap of transition joint body 5 and cable core 4, realize integral sealing, the moisture that has solved joint immerses problem.Because polyester film 9 pocket freely deformables after waterproofing agent solidifies simultaneously, have certain elasticity, and the transition joint pliability after the installation is good, solved the crooked and mobile problem of joint area cable in addition.
The utility model is not limited to this embodiment, and the utility model content is described all can be implemented, and has described good result.
Claims (2)
1, water proof type power cable transition joint, comprise: protective coverings of cable, cable sheath, cable sheath, 3 cable cores, difference correspondences connect 3 joint bodies of each cable core, two ends respectively with the inner sheath pipe of cable sheath socket, two ends respectively with the oversheath pipe of protective coverings of cable socket, it is characterized in that: also be provided with rubber-like insulative water-proof agent layer (7) between the gap of inner each cable core of described inner sheath pipe (6) (4).
2, by the transition joint of the described water proof type power cable of claim 1, it is characterized in that: the inwall of described inner sheath pipe (6) also is provided with plastic film layers (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420002753 CN2718870Y (en) | 2004-01-17 | 2004-01-17 | Waterproof electric cable intermediate joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420002753 CN2718870Y (en) | 2004-01-17 | 2004-01-17 | Waterproof electric cable intermediate joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2718870Y true CN2718870Y (en) | 2005-08-17 |
Family
ID=34892486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420002753 Expired - Fee Related CN2718870Y (en) | 2004-01-17 | 2004-01-17 | Waterproof electric cable intermediate joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2718870Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795772A (en) * | 2013-01-04 | 2015-07-22 | 衢州市易凡设计有限公司 | Application method of tensile waterproof insulating sleeve of connected cable |
| CN106410700A (en) * | 2016-11-22 | 2017-02-15 | 国网新疆电力公司乌鲁木齐供电公司 | Improved waterproof method for intermediate joint of cold contraction cable |
-
2004
- 2004-01-17 CN CN 200420002753 patent/CN2718870Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795772A (en) * | 2013-01-04 | 2015-07-22 | 衢州市易凡设计有限公司 | Application method of tensile waterproof insulating sleeve of connected cable |
| CN104795772B (en) * | 2013-01-04 | 2017-01-25 | 衢州市易凡设计有限公司 | Application method of tensile waterproof insulating sleeve of connected cable |
| CN106410700A (en) * | 2016-11-22 | 2017-02-15 | 国网新疆电力公司乌鲁木齐供电公司 | Improved waterproof method for intermediate joint of cold contraction cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |