CN2377658Y - Leak coaxial cable - Google Patents
Leak coaxial cable Download PDFInfo
- Publication number
- CN2377658Y CN2377658Y CN 99213755 CN99213755U CN2377658Y CN 2377658 Y CN2377658 Y CN 2377658Y CN 99213755 CN99213755 CN 99213755 CN 99213755 U CN99213755 U CN 99213755U CN 2377658 Y CN2377658 Y CN 2377658Y
- Authority
- CN
- China
- Prior art keywords
- polyethylene
- coaxial cable
- cable
- insulation
- utility
- 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
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Abstract
The utility model relates to a leak coaxial cable. The utility model is composed of an inner conductor, foaming polyethylene insulation, an outer conductor, a polyester film, a black polyethylene inner sheath, a yellow polyvinyl chloride outer sheath which are sheathed in turn from inward to outward. Because of the structure of the utility model, the foaming polyethylene insulation replaces a foaming polyethylene rope and the polyethylene pipe insulation of an original leak coaxial cable; thus, the process flow and the working hour are saved. Simultaneously, the moisture can be guaranteed to not enter the inner part of the cable because of the insulation structure of the cable; thus, the attenuation index of the cable is not influenced, and the maintenance and the repair are not needed.
Description
The utility model relates to a kind of leaky coaxial cable.
Leaky coaxial cable is widely used in the mobile communication system of tunnel, colliery, tunnel, underground railway and other foundation, realizes that antenna can not transmit and the communicating by letter of wired place that is difficult to adapt to the dual-use function of its transmission line and antenna.But existing leaky coaxial cable is the manufacturing process complexity not only, and in use moisture can be easy to enter in the insulated tube, causes the decay index to descend significantly, even influences the normal operation of system.
Be to provide a kind of insulation system good, the leaky coaxial cable that attenuation coefficient is little order of the present utility model.
Be achieved in that leaky coaxial cable order of the present utility model, be to constitute by inner wire, outer conductor, mylar, black polyethylene inner sheath, yellow polyvinyl chloride oversheath, it is characterized in that between inner wire and outer conductor, only being provided with polyethylene foamed insulation, its structure be inner wire, polyethylene foamed insulation, outer conductor, mylar, black polyethylene inner sheath, yellow polyvinyl chloride oversheath successively from inside to outside suit form.
The utility model is owing to adopt said structure, the polyethylene foamed rope and the polyethylene pipe that have been replaced in the former leaky coaxial cable by polyethylene foamed insulate, technological process and man-hour have been saved greatly, the insulation system of cable has guaranteed that moisture can not enter cable inside simultaneously, do not influence the cable attenuation index, thereby removed the maintenance nursing from.
Provide specific embodiment below in conjunction with accompanying drawing, further specify the utility model and how to realize.
Fig. 1. the utility model overall structure schematic diagram
Fig. 2. former leaky coaxial cable structural representation
Wherein: 1. inner wire, 2. polyethylene foamed insulation, 3. outer conductor, 4. mylar, 5. black polyethylene inner sheath, 6. yellow polyvinyl chloride oversheath.
As shown in Figure 1, leaky coaxial cable is to be made of inner wire (1), polyethylene foamed insulation (2), outer conductor (3), mylar (4), black polyethylene inner sheath (5), yellow polyvinyl chloride oversheath (6), and its structure is inner wire (1), polyethylene foamed insulation (2), outer conductor (3), mylar (4), black polyethylene inner sheath (5), suit forms yellow polyvinyl chloride oversheath (6) from inside to outside successively.Characteristics are to have replaced polyethylene foamed rope (2a) as shown in Figure 2, polyethylene pipe (2b) insulation by polyethylene foamed insulation (2).
Claims (1)
1. leaky coaxial cable, be to constitute by inner wire, outer conductor, mylar, black polyethylene inner sheath, yellow polyvinyl chloride oversheath, it is characterized in that between inner wire and outer conductor, only being provided with polyethylene foamed insulation, its structure be inner wire, polyethylene foamed insulation, outer conductor, mylar, black polyethylene inner sheath, yellow polyvinyl chloride oversheath successively from inside to outside suit form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99213755 CN2377658Y (en) | 1999-06-14 | 1999-06-14 | Leak coaxial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99213755 CN2377658Y (en) | 1999-06-14 | 1999-06-14 | Leak coaxial cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2377658Y true CN2377658Y (en) | 2000-05-10 |
Family
ID=34006081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99213755 Expired - Lifetime CN2377658Y (en) | 1999-06-14 | 1999-06-14 | Leak coaxial cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2377658Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104170028A (en) * | 2012-03-14 | 2014-11-26 | 矢崎总业株式会社 | Coaxial cable, and method for producing coaxial cable |
-
1999
- 1999-06-14 CN CN 99213755 patent/CN2377658Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104170028A (en) * | 2012-03-14 | 2014-11-26 | 矢崎总业株式会社 | Coaxial cable, and method for producing coaxial cable |
| US9396845B2 (en) | 2012-03-14 | 2016-07-19 | Yazaki Corporation | Coaxial electric wire and method for manufacturing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |