CN206490196U - A kind of switch cubicle inner cable head Special grounding wire - Google Patents
A kind of switch cubicle inner cable head Special grounding wire Download PDFInfo
- Publication number
- CN206490196U CN206490196U CN201720226718.1U CN201720226718U CN206490196U CN 206490196 U CN206490196 U CN 206490196U CN 201720226718 U CN201720226718 U CN 201720226718U CN 206490196 U CN206490196 U CN 206490196U
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- China
- Prior art keywords
- clamp
- gripping block
- screw rod
- switch cubicle
- inner cable
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Links
- 238000010276 construction Methods 0.000 abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 13
- 239000010949 copper Substances 0.000 description 13
- 229910052802 copper Inorganic materials 0.000 description 13
- 238000012423 maintenance Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Electric Cable Installation (AREA)
Abstract
The utility model discloses a kind of switch cubicle inner cable head Special grounding wire, including hot line clamp and insulating bar, hot line clamp includes offering screwed hole on clamp and gripping block and earthing or grounding means, clamp；The screw rod matched with screwed hole is provided with the top of insulating bar, the top of screw rod installs the gripping block, the size for the jaws that clamp is constituted with gripping block is adjusted by rotating screw rod；The clamp is in " C " shape structure, and clamp is with offering vee positioned opposite in gripping block, the breach face of vee is non slip surface；The insulating bar is formed by connecting by head rod and foot piece by Hooke's joint；The utility model is simple in construction, easy to operate, realize held tight of the ground wire to the circuit termination in close line side in high-tension switch cabinet, grounding safety is firm, difficult for drop-off, thoroughly solves the problem of cable socket installing ground wire is difficult, improves the efficiency of grid switching operation.
Description
Technical field
The utility model is related to distribution operation technical field of tools, especially a kind of switch cubicle inner cable head Special grounding
Line.
Background technology
Currently, in power system, the grid switching operation of efficiently and accurately is the important leverage of electric power Moral Culture Construction good service.
For high voltage distribution network（10kV）For, with increasing distribution line operation, in order to ensure back brake safety, in distribution line
Carry out before interruption maintenance, it is necessary to after being detected by line side and determining no voltage, refill and set ground wire, wherein ground wire
It is in order in the equipment or circuit having had a power failure during drop-in voltage, circuit is introduced into the earth, ensures that electric power is transported with this
Tie up the important tool of personal security.Thus, it is possible to quickly install ground wire in time, also safely and efficiently carried out for operation maintenance personnel
Grid switching operation provides sound assurance.
Referring to Fig. 1, the structure of existing ground wire is as follows：Ground wire includes hot line clamp and insulating bar 1, live line
Folder includes " u "-shaped clamp 2 and gripping block 3 and earthing or grounding means 4, and clamp 2 is in lateral arrangement, is opened up on the lower side of clamp 2
There is screwed hole 5；The screw rod 6 matched with screwed hole 5 is provided with the top of insulating bar 1, the folder is installed on the top of screw rod 6
Tight block 3, gripping block 3 and the upper side edge of clamp 2 constitute jaws 7, and the size of jaws 7 is adjusted by rotating screw rod 6.Using described
Ground wire there is problems with when being grounded：
(1) because in transformer station room, the wiring in 10kV switch cubicle close to line side is at the end of cable connection
Then copper cash nose and aluminium are arranged using the copper cash nose of cylinder or copper bar are fastenedly connected by head by bolt；Work as needs
When carrying out grid switching operation and carrying out grounding to the wiring close to line side, because the size of aluminium row or copper bar compare
Greatly, the jaws 7 of the ground wire described in Fig. 1 can not completely be clamped to it, and jaws 7 can only be clamped on copper cash nose.However,
Because the jaws 7 of ground wire is flat mouth structure, contact area of the jaws under clamp position between copper cash nose is small, copper wiring
Nose easily comes off from jaws, and this causes switch-cabinet grounding not firm, there is larger potential safety hazard；
(2) due in transformer station room, in order to provide more well-to-do operating space and work as much as possible for staff
Dynamic space, on the premise of power distribution network safe operation is not influenceed, typically can all be standardized, modularized design to switch cubicle,
The arrangement of each component and distribution line in switch cubicle is all compact.When to being connect in switch cubicle close to line side
When line carries out grounding, often due to space is limited in cabinet, the insulating bar of ground wire is long and shortage operation is abundant
Amount, causes operation difficulty increasing, consuming time long, it is difficult to which the jaws to hot line clamp is locked, and line-to-ground is not firm；
(3) grounding device constructions on existing hot line clamp are simple, service life is short, simply using common ground connection
Post, and fitted bolt fastens to the lead for ground connection.This structure time-consuming expense when being fastened to ground lead
Power, and be difficult to it is larger to hardness and be not easy bending thick copper lines or steel wire rope fasten so that cause be grounded it is not firm；
(4) in general, light is weaker in switch cubicle, under power down mode, if the cooperation without illuminator, O＆M
The hand-held insulating bar of personnel will be difficult to quickly and accurately be directed at the jaws of hot line clamp with copper cash nose, cause work
Inefficiency, delay stops electric power feeding time.
The content of the invention
The purpose of this utility model seeks to solve existing ground wire to close line side circuit in high-tension switch cabinet
Above mentioned problem existing during grounding is carried out, a kind of simple in construction, easy to operate, switch cubicle that ground connection is firm is provided for this
Inner cable head Special grounding wire.
Concrete scheme of the present utility model is：A kind of switch cubicle inner cable head Special grounding wire, including hot line clamp and absolutely
Edge action bars, hot line clamp includes offering screwed hole on clamp and gripping block and earthing or grounding means, clamp；In insulating bar
Top be provided with the screw rod that matches with screwed hole, the gripping block is installed on the top of screw rod, and clamp is adjusted by rotating screw rod
The size of the jaws constituted with gripping block；It is characterized in that：The clamp is in " C " shape structure, and clamp in gripping block with offering
Vee positioned opposite, the breach face of vee is non slip surface；The insulating bar is led to by head rod and foot piece
Hooke's joint is crossed to be formed by connecting.
Head rod described in the utility model is provided with illuminator.
Earthing or grounding means described in the utility model includes fastening bolt and clamp nut, is offered on clamp and fastening spiral shell
The through hole that bolt matches；The head of the fastening bolt is a countersunk head chuck, on upside arc clip and downside arc clip,
Under it is positioned opposite into sleeve-like structure, the width of upside arc clip is more than the width of downside arc clip；On clamp be provided with
Two arc cushion blocks that the two ends of upside arc clip match, two arc cushion blocks are arranged in parallel in through hole both sides.
Chute is provided with the utility model on clamp；The gripping block is provided with the sliding block matched with chute, in folder
Spherical cavity is provided with tight block, gripping block is put together by two hemihedrism；Bulb, bulb and spherical cavity phase are provided with the top of screw rod
Coordinate.
Non slip surface described in the utility model is zigzag structure.
The utility model has advantages below：
(1) the utility model is simple in construction, easy to operate, is constituted by using by two vees with serrated face
Jaws, be easy to carry out the copper cash nose of cable socket close occlusion up and down so that jaws under clamp position with copper cash nose
Contact area between son is big, effectively prevent copper wiring nose and is easily come off from jaws, grounding safety is firm, thoroughly solves
The problem of cable socket installing ground wire is difficult, improves the efficiency of grid switching operation；
(2) the utility model is by using the insulating bar with Hooke's joint, when running into because of high-tension switch cabinet
Interior narrow space and when being not easy to insulating bar and carrying out locking operation to hot line clamp, only need to be by Hooke's joint by head
Bar and foot piece adjustment are in 90 °, referring to Fig. 3, allow bit space to reserve, now foot piece is as boosting-rod, and operation maintenance personnel can pass through
Foot piece controls the rotary state of head rod, so as to facilitate the size of the jaws of hot line clamp is adjusted；
(3) the utility model, when in use, only need to be by exposed lead by using the earthing or grounding means with countersunk head chuck
Termination is inserted into countersunk head chuck, is then fastened on corresponding fastening bolt on clamp by clamp nut, you can completed
It is not only simple to operate to the tightening operation of lead, and service life is long, effectively prevent existing with binding post knot
The earthing or grounding means of structure is wasted time and energy when frequently being loaded and unloaded to ground lead, and binding post easily sustains damage, and grounding lead
Line fastens illusive problem；
(4) the utility model on head rod by setting illuminator, when light is weaker in high-tension switch cabinet body, fortune
The jaws of hot line clamp quickly and accurately can be also aligned by dimension personnel with copper cash nose, and operating efficiency effectively improves.
Brief description of the drawings
Fig. 1 is the structural representation of current ground wire；
Fig. 2 is structural representation of the present utility model；
Fig. 3 is configuration schematic diagram of the present utility model；
Fig. 4 is the structural representation of earthing or grounding means in the utility model.
In figure：1-insulating bar, 1a-head rod, 1b-foot piece, 1c-Hooke's joint, 2-clamp, 3-clamp
Block, 4-earthing or grounding means, 5-screwed hole, 6-screw rod, 7-jaws, 7a, 7b-vee, 8-illuminator, 9-tight
Fixing bolt, 10-clamp nut, 11-through hole, 12-countersunk head chuck, 12a-upside arc clip, 12b-downside arc folder
Piece, 13-arc cushion block, 14-chute, 15-sliding block, 16-spherical cavity, 17-bulb.
Embodiment
Referring to Fig. 2, Fig. 3, a kind of switch cubicle inner cable head Special grounding wire, including hot line clamp and insulating bar 1, band
Electrical wire clip includes offering screwed hole 5 on clamp 2 and gripping block 3 and earthing or grounding means 4, clamp 2；On the top of insulating bar 1
The gripping block 3 is installed in end provided with the screw rod 6 matched with screwed hole 5, the top of screw rod 6, and clamp is adjusted by rotating screw rod 6
The size of 2 jaws 7 constituted with gripping block 3；The clamp 2 is in " C " shape structure, and clamp 2 is relative with being offered in gripping block 3
The vee 7a and 7b of arrangement, vee 7a and 7b breach face are non slip surface, and the non slip surface is zigzag
Structure；The insulating bar 1 is formed by connecting by head rod 1a and foot piece 1b by Hooke's joint 1c.
Head rod 1a described in the present embodiment is provided with illuminator 8.
Referring to Fig. 4, earthing or grounding means 4 described in the present embodiment includes fastening bolt 9 and clamp nut 10, is opened on clamp 2
The through hole 11 matched provided with the screw rod with fastening bolt 9；The head of the fastening bolt 9 is a countersunk head chuck 12, by upside
Arc clip 12a and downside arc clip 12b is upper and lower positioned opposite into sleeve-like structure, and upside arc clip 12a width is more than
Downside arc clip 12b width；Two arc-shaped pads matched with upside arc clip 12a two ends are provided with clamp 2
Block 13, two arc cushion blocks are arranged in parallel in the both sides of through hole 11.
Chute 14 is provided with the present embodiment on clamp 2；The gripping block 3 is provided with the sliding block matched with chute 14
15, spherical cavity 16 is provided with gripping block 3, gripping block 3 is put together by two hemihedrism；Bulb 17 is provided with the top of screw rod 6,
Bulb 17 is engaged with spherical cavity 16.When operation maintenance personnel by insulating bar 1 control screw rod 6 rotated when, screw rod 6 along
Screwed hole 5 is advanced or retreated, and screw rod 6 promoted while advance or retrogressing gripping block 3 along chute 14 forward or
Slide backward, the spherical attachment structure between screw rod 6 and gripping block 3, it is ensured that screw rod 6 carries out axial fortune in drive gripping block 3
Without giving gripping block 3 one larger radial loads while dynamic.
Claims (5)
1. a kind of switch cubicle inner cable head Special grounding wire, including hot line clamp and insulating bar, hot line clamp include clamp
With gripping block and earthing or grounding means, screwed hole is offered on clamp；It is provided with and matches with screwed hole on the top of insulating bar
Screw rod, the top of screw rod installs the gripping block, the big of the jaws that clamp is constituted with gripping block is adjusted by rotating screw rod
It is small；It is characterized in that：The clamp is in " C " shape structure, and clamp in gripping block with offering vee positioned opposite, triangle
The breach face of v notch v is non slip surface；The insulating bar is formed by connecting by head rod and foot piece by Hooke's joint.
2. a kind of switch cubicle inner cable head Special grounding wire according to claim 1, it is characterized in that：The head rod is provided with
Illuminator.
3. a kind of switch cubicle inner cable head Special grounding wire according to claim 1, it is characterized in that：The earthing or grounding means bag
Fastening bolt and clamp nut are included, the through hole matched with fastening bolt is offered on clamp；The head of the fastening bolt
It is upper and lower positioned opposite into sleeve-like structure, upside arc clip by upside arc clip and downside arc clip for a countersunk head chuck
Width be more than downside arc clip width；Two arcs matched with the two ends of upside arc clip are provided with clamp
Cushion block, two arc cushion blocks are arranged in parallel in through hole both sides.
4. a kind of switch cubicle inner cable head Special grounding wire according to claim 1, it is characterized in that：Provided with cunning on clamp
Groove；The gripping block is provided with the sliding block matched with chute, and spherical cavity is provided with gripping block, and gripping block is spelled by two hemihedrism
Conjunction is formed；Bulb is provided with the top of screw rod, bulb is engaged with spherical cavity.
5. a kind of switch cubicle inner cable head Special grounding wire according to claim 1, it is characterized in that：The non slip surface is saw
Tooth-shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720226718.1U CN206490196U (en) | 2017-03-09 | 2017-03-09 | A kind of switch cubicle inner cable head Special grounding wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720226718.1U CN206490196U (en) | 2017-03-09 | 2017-03-09 | A kind of switch cubicle inner cable head Special grounding wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206490196U true CN206490196U (en) | 2017-09-12 |
Family
ID=59763398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720226718.1U Active CN206490196U (en) | 2017-03-09 | 2017-03-09 | A kind of switch cubicle inner cable head Special grounding wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206490196U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108173164A (en) * | 2018-01-12 | 2018-06-15 | 国家电网公司 | A kind of uninterrupted operation bypasses protector |
| CN109361172A (en) * | 2018-11-13 | 2019-02-19 | 国网浙江省电力有限公司绍兴供电公司 | A kind of universal grounding rod of overhead transmission line ground wire |
| CN112636029A (en) * | 2020-12-10 | 2021-04-09 | 贵州电网有限责任公司 | High-voltage cable butt-joint box grounding wire with clamping rods and use method |
| CN113410669A (en) * | 2021-06-18 | 2021-09-17 | 深圳盛唐懋电力技术有限公司 | Flat-end grounding wire clamp |
-
2017
- 2017-03-09 CN CN201720226718.1U patent/CN206490196U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108173164A (en) * | 2018-01-12 | 2018-06-15 | 国家电网公司 | A kind of uninterrupted operation bypasses protector |
| CN109361172A (en) * | 2018-11-13 | 2019-02-19 | 国网浙江省电力有限公司绍兴供电公司 | A kind of universal grounding rod of overhead transmission line ground wire |
| CN109361172B (en) * | 2018-11-13 | 2023-09-26 | 国网浙江省电力有限公司绍兴供电公司 | Universal ground rod for overhead transmission line ground wire |
| CN112636029A (en) * | 2020-12-10 | 2021-04-09 | 贵州电网有限责任公司 | High-voltage cable butt-joint box grounding wire with clamping rods and use method |
| CN113410669A (en) * | 2021-06-18 | 2021-09-17 | 深圳盛唐懋电力技术有限公司 | Flat-end grounding wire clamp |
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