CN203103896U - A flexible cable connecting device used for a ring main unit - Google Patents
A flexible cable connecting device used for a ring main unit Download PDFInfo
- Publication number
- CN203103896U CN203103896U CN 201220741603 CN201220741603U CN203103896U CN 203103896 U CN203103896 U CN 203103896U CN 201220741603 CN201220741603 CN 201220741603 CN 201220741603 U CN201220741603 U CN 201220741603U CN 203103896 U CN203103896 U CN 203103896U
- Authority
- CN
- China
- Prior art keywords
- cable
- flexible cable
- connecting portion
- plug
- main unit
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 239000003292 glue Substances 0.000 claims description 13
- 239000004020 conductor Substances 0.000 claims description 11
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 230000007306 turnover Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Images
Abstract
The utility model discloses a flexible cable connecting device used for a ring main unit. The flexible cable connecting device comprises a cable terminal, a flexible cable, and a plug-in fast connector. The cable terminal is inserted into the cable sleeve of the ring main unit. The plug-in fast connector is inserted into the inlet-outlet wire sleeve of a by-pass switch. By using the communicated characteristic of the shielded wire of the flexible cable, a grounding point is changed from the cable terminal to the by-pass switch and a grounding wire is not required to be laid. The flexible cable connecting device has characteristics of a simple structure, easy use, reducing an operating range, facilitating overhaul operation without power cut, and increasing the power supplying reliability of a line.
Description
Technical field
The utility model relates to a kind of flexible cable jockey that is used for ring main unit.
Background technology
When underground cable needed repairing unusually between two ring main units, after taking ground to lay bypass cable and carrying out safety prevention measure, replacing underground cable by bypass cable was the ring main unit power supply, reaches the purpose of (the few power failure) maintenance that do not have a power failure.
Bypass cable is mainly by by-pass switch, and one end be provided with the cable termination that the cable sleeve with ring main unit joins, the flexible cable that the other end links to each other with by-pass switch is formed, at present, the ground connection of bypass cable mainly is to realize by being located at the earth connection that joins with ground on the cable termination metallic shield shell, but, because bypass cable mainly is the reply breakdown repair, defect processing, need safety, fast, convenient construction, and such earthing mode makes and also to need to set up in addition earth connection when laying bypass cable, increased engineering time and difficulty, made troubles for not interruption maintenance operation.
Simultaneously, become under the less situation in space at ring main unit or case, the difficulty of construction of setting up earth connection on the cable termination is just bigger.
Summary of the invention
The purpose of this utility model provides a kind of flexible cable jockey that is used for ring main unit simple in structure, easy to use exactly in order to address the above problem.
The purpose of this utility model is achieved in that
A kind of flexible cable jockey that is used for ring main unit of the present utility model, comprise cable termination, flexible cable and plug-in snap joint, the two ends of described flexible cable are located in described cable termination and plug-in snap joint respectively, described flexible cable comprises sheath, tinned copper wire screen, sheath and tin-coated copper conductor from outside to inside, described cable termination is plugged on the cable sleeve of described ring main unit, described plug-in snap joint is plugged on the turnover thread casing of described by-pass switch, wherein:
Described cable termination comprises sleeve pipe, is located at the cable crimp type terminal and the plug bar of described flexible cable one end, described cable crimp type terminal is inserted by the lower port of described sleeve pipe, described plug bar is inserted by the upper port of described sleeve pipe and the one end is fixed on the described cable crimp type terminal, and the other end protrudes in the upper port of described sleeve pipe;
Described plug-in snap joint comprises the glue core, be sheathed on the metal shell and the center needle in the described glue core outside, described glue core comprise by through hole be interconnected on, lower chamber, and the internal diameter of described through hole is all less than last, the internal diameter of lower chamber, described center needle comprises contact pin portion and wire connecting portion, and the external diameter of described wire connecting portion is greater than the internal diameter of described through hole, described contact pin portion inserts and places in the described upper cavity from the lower port of described through hole, described wire connecting portion is sticked in the lower port place of described through hole and places in the described lower chamber, the tin-coated copper conductor of the described flexible cable other end is plugged in the described wire connecting portion, and the tinned copper wire screen of described flexible cable is located between described glue core and the metal shell.
Above-mentioned a kind of flexible cable jockey that is used for ring main unit, wherein, described plug bar comprises end to end arc extinguishing bar and conducting rod, described cable crimp type terminal comprises wire connecting portion and connecting portion, the tin-coated copper conductor of described flexible cable one end is plugged in the described wire connecting portion, one end of described connecting portion and described conducting rod is spirally connected, and a distal process of described arc extinguishing bar is for the upper port of described sleeve pipe.
The characteristic that the utility model utilizes the flexible cable shielding conductor to be communicated with completely, earth point is guided to the by-pass switch place from cable termination, need not to set up in addition earth connection, be convenient to bypass cable construction and not interruption maintenance operation, also be applicable to the situation that the ring main unit space is less simultaneously, improve the line powering reliability greatly.
The utility model flexible cable jockey is simple in structure, easy to use, has reduced job area, is convenient to not interruption maintenance operation, improves the line powering reliability.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See also Fig. 1, the utility model is used for the flexible cable jockey of ring main unit, comprise cable termination, flexible cable 1 and plug-in snap joint 2, flexible cable 1 comprises sheath 14, tinned copper wire screen 13, sheath 12 and tin-coated copper conductor 11 from outside to inside, cable termination is plugged on the cable sleeve of ring main unit, and plug-in snap joint 2 is plugged on the turnover thread casing 31 of by-pass switch 3;
Cable termination comprises sleeve pipe 5, cable crimp type terminal and plug bar, the cable crimp type terminal comprises wire connecting portion 72 and connecting portion 71, the tin-coated copper conductor 11 of flexible cable 1 one ends is plugged in the wire connecting portion 72, the cable crimp type terminal is inserted by the lower port of sleeve pipe 5, the plug bar comprises end to end arc extinguishing bar 62 and conducting rod 61, the plug bar is inserted by the upper port of sleeve pipe 5, and the right part of conducting rod 61 and connecting portion 71 be spirally connected, and the left part of arc extinguishing bar 62 protrudes in the upper port of sleeve pipe 5;
Plug-in snap joint 2 comprises glue core 21, be sheathed on the metal shell 22 and the center needle 4 in glue core 21 outsides, glue core 21 comprises upper cavity 211 and the lower chamber 212 that is interconnected by through hole 213, and the internal diameter of through hole 213 is respectively less than the internal diameter of upper cavity 211 and lower chamber 212, center needle 4 comprises contact pin portion 41 and wire connecting portion 42, and the external diameter of wire connecting portion 42 is greater than the internal diameter of through hole 213, contact pin portion 41 inserts and places in the upper cavity 211 from the lower port of through hole 213, wire connecting portion 42 is sticked in the lower port place of through hole 213 and places in the lower chamber 212, the tin-coated copper conductor 11 of flexible cable 1 is plugged in the wire connecting portion 42, and the tinned copper wire screen 13 of flexible cable 1 is located between glue core 21 and the metal shell 22, the turnover thread casing 31 of by-pass switch 3 comprises inner core 312 and the metallic sheath of being located at outside the inner core 312 311, contact pin portion 41 is plugged in the inner core 312, metallic sheath 311 is embedded between glue core 21 and the metal shell 22, metal-coating 311 links to each other with the shell of by-pass switch 3, and the earthing of casing of by-pass switch 3.
Because the tinned copper wire shielding conductor 13 of flexible cable 1 is to be communicated with completely, therefore earth point can be guided on the shell of by-pass switch 3 by the metal shell 22 of plug-in snap joint 2 and the metallic sheath 311 of turnover thread casing 31 from the cable termination end of flexible cable 1, and the shell of by-pass switch 3 itself is a ground connection, so just need not to set up earth connection in addition, be convenient to bypass cable construction and not interruption maintenance operation.
Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (2)
1. flexible cable jockey that is used for ring main unit, comprise cable termination, flexible cable and plug-in snap joint, the two ends of described flexible cable are located in described cable termination and plug-in snap joint respectively, described flexible cable comprises sheath, tinned copper wire screen, sheath and tin-coated copper conductor from outside to inside, described cable termination is plugged on the cable sleeve of described ring main unit, described plug-in snap joint is plugged on the turnover thread casing of described by-pass switch, it is characterized in that
Described cable termination comprises sleeve pipe, is located at the cable crimp type terminal and the plug bar of described flexible cable one end, described cable crimp type terminal is inserted by the lower port of described sleeve pipe, described plug bar is inserted by the upper port of described sleeve pipe and the one end is fixed on the described cable crimp type terminal, and the other end protrudes in the upper port of described sleeve pipe;
Described plug-in snap joint comprises the glue core, be sheathed on the metal shell and the center needle in the described glue core outside, described glue core comprise by through hole be interconnected on, lower chamber, and the internal diameter of described through hole is all less than last, the internal diameter of lower chamber, described center needle comprises contact pin portion and wire connecting portion, and the external diameter of described wire connecting portion is greater than the internal diameter of described through hole, described contact pin portion inserts and places in the described upper cavity from the lower port of described through hole, described wire connecting portion is sticked in the lower port place of described through hole and places in the described lower chamber, the tin-coated copper conductor of the described flexible cable other end is plugged in the described wire connecting portion, and the tinned copper wire screen of described flexible cable is located between described glue core and the metal shell.
2. a kind of flexible cable jockey that is used for ring main unit as claimed in claim 1, it is characterized in that, described plug bar comprises end to end arc extinguishing bar and conducting rod, described cable crimp type terminal comprises wire connecting portion and connecting portion, the tin-coated copper conductor of described flexible cable one end is plugged in the described wire connecting portion, one end of described connecting portion and described conducting rod is spirally connected, and a distal process of described arc extinguishing bar is for the upper port of described sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220741603 CN203103896U (en) | 2012-12-28 | 2012-12-28 | A flexible cable connecting device used for a ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220741603 CN203103896U (en) | 2012-12-28 | 2012-12-28 | A flexible cable connecting device used for a ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203103896U true CN203103896U (en) | 2013-07-31 |
Family
ID=48855273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220741603 Expired - Lifetime CN203103896U (en) | 2012-12-28 | 2012-12-28 | A flexible cable connecting device used for a ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203103896U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932450A (en) * | 2016-06-28 | 2016-09-07 | 深圳供电局有限公司 | Sleeve for test of ring main unit grounding point |
-
2012
- 2012-12-28 CN CN 201220741603 patent/CN203103896U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932450A (en) * | 2016-06-28 | 2016-09-07 | 深圳供电局有限公司 | Sleeve for test of ring main unit grounding point |
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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: 20130731 |