CN104300485A - Cable head sealing cover - Google Patents
Cable head sealing cover Download PDFInfo
- Publication number
- CN104300485A CN104300485A CN201410605160.9A CN201410605160A CN104300485A CN 104300485 A CN104300485 A CN 104300485A CN 201410605160 A CN201410605160 A CN 201410605160A CN 104300485 A CN104300485 A CN 104300485A
- Authority
- CN
- China
- Prior art keywords
- sealing cover
- cable
- cable head
- valve core
- elastic rubber
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/02—Cable terminations
- H02G15/04—Cable-end sealings
- H02G15/043—Cable-end sealings with end caps, e.g. sleeve closed at one end
Abstract
The invention discloses a cable head sealing cover. The sealing cover is conical in appearance. A valve core is arranged at the conical end of the sealing cover, and the other end of the sealing cover is connected with a cable in a sleeving mode. The sealing cover comprises an outer protecting shell and an elastic rubber pipe layer from outside to inside. A plurality of annular protrusions are arranged on the inner wall of one end of the elastic rubber pipe layer at intervals. One end of the valve core is arranged in the elastic rubber pipe layer, and the other end of the valve core extends out of the elastic rubber pipe layer. In use, the cable head sealing cover is connected to a cable head in a sleeving mode, then an instrument is used for pumping internal gas from the valve core, and therefore the elastic rubber pipe layer on the inner layer of the sealing cover and the outer layer of the cable head deform to be connected in a sealing mode. In use, gas enters the valve core, and then the cable head sealing cover can be pulled out. The annular protrusions are arranged, and therefore the cable head sealing cover is tighter in sealing and convenient to apply and popularize in the industry.
Description
Technical field
The invention belongs to cable construction technical field, particularly relate to a kind of cable pack-off cover.
Background technology
After cable water inlet, under the effect of electric field, water-treeing phenomenon can be there is, finally cause cable breakdown.Water tree is that diameter is gathered to several microns of water-filled spaces at 0.1m.The high local fields position that the impurity existed in insulation, pore and insulation and the uneven place of interior outer semiconducting layer faying face are formed is that the starting point that water sets occurs.The evolution of water tree is generally more than 8 years, and humidity, temperature, voltage are higher, and in water, contained ion is more, then the development of water tree is faster.
After cable water inlet, dry process very difficult (as blown dry with hot nitrogen pressurization), does not generally configure corresponding equipment yet.In practical operation, if cable is as water inlet, just amputate several meters, front end, as whole piece cable is intake, just cannot be desirable.Therefore, preventing of cable water inlet, should to put prevention first.
Summary of the invention
The object of this invention is to provide a kind of cable pack-off cover, when using above-mentioned prior art to solve, existing the problems referred to above.
For realizing object of the present invention; the invention provides a kind of cable pack-off cover; the profile of described seal closure is tapered; its tapering point is provided with valve inside; its other end and cable are socketed, and described seal closure comprises outer containment vessel from outside to inside and elastic gum tube layer, described elastic gum tube layer one end inwall be arranged at intervals with multiple annular protrusion; one end of described valve inside is arranged in described elastic gum tube layer, and the other end extends described elastic gum tube layer.
The present invention, compared with prior art, when in use, the cable pack-off enclosure is connected on cable end, then, use apparatus from valve inside, the gas of the inside is released, thus make the elastic gum tube layer of seal closure internal layer and cable end skin produce distortion, and then be tightly connected, when in use, from valve inside, gas is entered, then cable pack-off cover can be pulled up, be provided with annular protrusion structure and make the sealing of cable pack-off cover more solid, be convenient to industrially promotion and application.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure, 1-elastic gum tube layer, the outer containment vessel of 2-, 3-valve inside, 4-annular protrusion.
Embodiment
In order to make object of the present invention, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be understood to specific embodiment described herein only in order to explain the present invention, be not limited to protection scope of the present invention.
As shown in Figure 1; a kind of cable pack-off cover of the present invention; the profile of described seal closure is tapered; its tapering point is provided with valve inside 3; its other end and cable are socketed, and described seal closure comprises outer containment vessel 2 from outside to inside and elastic gum tube layer 1, described elastic gum tube layer 1 one end inwall be arranged at intervals with multiple annular protrusion 4; one end of described valve inside 3 is arranged in described elastic gum tube layer 1, and the other end extends described elastic gum tube layer 1.
The present invention, compared with prior art, when in use, the cable pack-off enclosure is connected on cable end, then, use apparatus from valve inside 3, the gas of the inside is released, thus make the elastic gum tube layer 1 of seal closure internal layer and cable end skin produce distortion, and then be tightly connected, when in use, from valve inside 3, gas is entered, then cable pack-off cover can be pulled up, being provided with annular protrusion 4 structure makes the sealing of cable pack-off cover more solid, easy to use, structure is simple, is being convenient to industrially promotion and application.
In a preferred embodiment, be hard plastic shell or metal-back by described outer containment vessel 2, thus when hand-held, prevent distortion, impact operation, improves operating efficiency.
In a preferred embodiment, the internal diameter of described seal closure can change with the internal diameter of the cable of its application.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a cable pack-off cover; it is characterized in that; the profile of described seal closure is tapered; its tapering point is provided with valve inside; its other end and cable are socketed, and described seal closure comprises outer containment vessel from outside to inside and elastic gum tube layer, described elastic gum tube layer one end inwall be arranged at intervals with multiple annular protrusion; one end of described valve inside is arranged in described elastic gum tube layer, and the other end extends described elastic gum tube layer.
2. cable pack-off cover according to claim 1, is characterized in that, described outer containment vessel is hard plastic shell or metal-back.
3. cable pack-off cover according to claim 1, is characterized in that, the internal diameter of described seal closure can change with the internal diameter of the cable of its application.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410605160.9A CN104300485A (en) | 2014-10-31 | 2014-10-31 | Cable head sealing cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410605160.9A CN104300485A (en) | 2014-10-31 | 2014-10-31 | Cable head sealing cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104300485A true CN104300485A (en) | 2015-01-21 |
Family
ID=52320117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410605160.9A Pending CN104300485A (en) | 2014-10-31 | 2014-10-31 | Cable head sealing cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104300485A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868433A (en) * | 2015-06-26 | 2015-08-26 | 国网四川省电力公司德阳供电公司 | Sharpened cable head sheath |
| CN104934922A (en) * | 2015-06-26 | 2015-09-23 | 国网四川省电力公司德阳供电公司 | Stable type cable head protective device |
| CN104967067A (en) * | 2015-06-25 | 2015-10-07 | 国网山东省电力公司济南供电公司 | Separation sleeve special for power secondary wiring |
| CN105048399A (en) * | 2015-07-08 | 2015-11-11 | 成都绿迪科技有限公司 | Cable sealing sleeve |
| CN106300215A (en) * | 2016-09-22 | 2017-01-04 | 国网山东省电力公司莱芜供电公司 | Novel portable cross-section of cable sealing device |
-
2014
- 2014-10-31 CN CN201410605160.9A patent/CN104300485A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967067A (en) * | 2015-06-25 | 2015-10-07 | 国网山东省电力公司济南供电公司 | Separation sleeve special for power secondary wiring |
| CN104967067B (en) * | 2015-06-25 | 2017-06-13 | 国网山东省电力公司济南供电公司 | The special separation sleeve of Power Secondary wiring |
| CN104868433A (en) * | 2015-06-26 | 2015-08-26 | 国网四川省电力公司德阳供电公司 | Sharpened cable head sheath |
| CN104934922A (en) * | 2015-06-26 | 2015-09-23 | 国网四川省电力公司德阳供电公司 | Stable type cable head protective device |
| CN105048399A (en) * | 2015-07-08 | 2015-11-11 | 成都绿迪科技有限公司 | Cable sealing sleeve |
| CN106300215A (en) * | 2016-09-22 | 2017-01-04 | 国网山东省电力公司莱芜供电公司 | Novel portable cross-section of cable sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150121 |
|
| WD01 | Invention patent application deemed withdrawn after publication |