CN108336698A - Penetrating cable clamp connection device - Google Patents
Penetrating cable clamp connection device Download PDFInfo
- Publication number
- CN108336698A CN108336698A CN201810404719.XA CN201810404719A CN108336698A CN 108336698 A CN108336698 A CN 108336698A CN 201810404719 A CN201810404719 A CN 201810404719A CN 108336698 A CN108336698 A CN 108336698A
- Authority
- CN
- China
- Prior art keywords
- cable clamp
- penetrating cable
- upper shell
- slide block
- connection device
- 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
- 230000000149 penetrating effect Effects 0.000 title claims abstract description 47
- 238000009434 installation Methods 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 210000002421 cell wall Anatomy 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
-
- 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The present invention gives a kind of penetrating cable clamp connection devices;Including penetrating cable clamp ontology and mounting assembly;The upper shell of penetrating cable clamp ontology is provided with the first puncture wire casing and the first ground slot, first, which punctures wire casing, is equipped with several upper knife edges, drainage thread installation folder is fixed with upper shell, upper shell is internally provided with the metalwork of connection upper knife edge and drainage thread installation folder, lower housing is provided with the second puncture wire casing and the second ground slot, second, which punctures wire casing, is equipped with several lower blades, torque screw rod through lower housing and with upper shell screw-thread fit, ground loop is in the second ground slot and the first ground slot;Mounting assembly includes mounting base, shaft and slide block, and slide block, which is provided with, stirs slot, and slide block is in mounting base, and shaft passes through toothing engaged transmission with all slide block lower parts.Advantageous effects are:Job step is simple, labor intensity is small, operation takes end, can effectively solve the waterproof problem between this penetrating cable clamp connection device and conducting wire, and the safe O&M for improving circuit is horizontal.
Description
Technical field
The present invention relates to a kind of penetrating cable clamp connection devices suitable for 10kV high-voltage electricity circuits.
Background technology
In recent years, with the continuous expansion of China's urban distribution network, the swift and violent growth of power load and the extensive city of a new round
The progress of township's electric network reconstruction, more and more town and country power distribution networks largely use suspended insulated guide wire, and current distribution network live line work
It is not only widely used in urban power distribution network, and is also developed rapidly in the distribution of county domain.Since county domain is matched
The transportation condition of net is poor, and many electric pole aerial lift device with insulated arm can not reach, and in addition the purchase of aerial lift device with insulated arm and O&M cost are high,
Insulated platform is built, the time-consuming labor intensity of job difficult is big, and operating personnel is in direct contact with electrical body, electric shock increased risk.
Thus, it carries out distribution not stopping maintenance being a kind of following operating type that can be carried forward vigorously using insulating bar working system,
Many events in operation are directed to the installment work of wire clamp in distribution network live line work, to use outside insulating bar working system stripping insulated wire
Skin can only use two people of insulating bar equipped with cutlery to operate, and cut manually, and task difficulty is high, labor intensity is big, and operating efficiency is low,
It is also easy to damage wires;Then installation exercise and the insulation recovery operation of wire clamp are carried out, job step is cumbersome and labor intensity
Time-consuming with operation, and the waterproof problem between wire clamp and conducting wire is not solved effectively, and the safe O&M for reducing circuit is horizontal.
Invention content
Technical problem to be solved by the invention is to provide a kind of penetrating cable clamps reasonable for structure, easy to operate to connect dress
It sets.
In order to solve the above technical problems, the present invention provides a kind of penetrating cable clamp connection devices;
Including penetrating cable clamp ontology and mounting assembly;
The penetrating cable clamp ontology includes upper shell, lower housing, ground loop, drainage thread installation folder and at least one torque spiral shell
Bar;
Upper shell lower face is provided with the first puncture wire casing and the first ground slot, and upper shell is also provided at least one through its upper and lower side
The threaded hole in face, the first cell wall for puncturing wire casing are equipped with several upper knife edges, and drainage thread installation folder is fixed with upper shell, upper shell
It is internally provided with the metalwork of connection upper knife edge and drainage thread installation folder;
Lower housing upper surface is provided with the second puncture wire casing and the second ground slot, and the first of the second puncture line channel opening and upper shell wears
Pierce wire casing aperture position correspond to, the second ground slot is corresponding with the first ground slot aperture position of upper shell, lower housing be also provided with to
A few through-hole for running through its upper and lower end face, the second cell wall for puncturing wire casing are equipped with several lower blades;
The torque screw rod is one-to-one relationship, the torque with the threaded hole of the upper shell, the through-hole of the lower housing
Screw rod runs through the correspondence through-hole of lower housing and coordinates with the corresponding threaded hole of upper shell, and the torque screw rod lower sidewall is equipped with limit
Position baffle;
Ground loop is in the second ground slot of lower housing and the first ground slot of upper shell, ground loop by lower housing inside
Metalwork is connected to lower blade;
Mounting assembly includes mounting base, shaft and at least one slide block, and the slide block is one a pair of with the torque screw rod
It should be related to, slide block upper surface is provided with stirs slot with what torque screw rod lower end coordinated, and slide block is in mounting base, and shaft stretches into
In mounting base, shaft passes through toothing engaged transmission with all slide block lower parts.
After such structure, the penetrating cable clamp ontology of this penetrating cable clamp connection device can be used as conduction wire clamp,
It is also used as earthing clamp, when as conduction wire clamp, drainage thread need to be first mounted on drawing for this penetrating cable clamp connection device
In streamline installation folder, when as earthing clamp, ground wire is hung on ground loop.
The installment work that penetrating cable clamp ontology is realized using mounting assembly, is avoided user from being in direct contact high-voltage conducting wires, had
Conducive to avoid occur safety accident.
This penetrating cable clamp connection device has following advantageous effects:Job step is simple, labor intensity is small, operation consumption
Shi Duan can effectively solve the waterproof problem between this penetrating cable clamp connection device and conducting wire, and the safe O&M for improving circuit is horizontal.
Its radial direction of the torque screw rod lower end edge of this penetrating cable clamp connection device is extended with several driving levers;Using such
After structure, driving lever can facilitate driving torque screw rod.
Threading hole is provided in the drainage thread installation folder of this penetrating cable clamp connection device, drainage thread installation folder is equipped with several lockings
Bolt, the clamping screw are stretched into across drainage thread installation folder outer wall in threading hole;After such structure, pass through locking screw
Bolt-lock is tight, and when avoiding traditional penetrating cable clamp installation, drainage thread is easy to fall problem.
The mounting base of this penetrating cable clamp connection device upwardly extends two pieces of baffles for lower housing both sides side wall to be clamped;
After such structure, baffle can play the role of lower housing auxiliary positioning, and when installation avoids lower housing from following torque spiral shell
Bar rotates.
The mounting assembly of this penetrating cable clamp connection device further includes extending central siphon and insulating sleeve, and outrigger shaft pipe sleeve is mounted in exhausted
In edge casing, extends and fixed between central siphon upper end and shaft, it is fixed between insulating sleeve upper end and mounting base;Using such knot
After structure, extending central siphon and insulating sleeve can make mounting assembly have the function of installing penetrating cable clamp ontology at a distance.
The insulating sleeve lower part of this penetrating cable clamp connection device is provided with electric wrench, the output shaft of electric wrench and extension
Central siphon connects;After such structure, is driven by using electric wrench and extend central siphon rotation, mitigate the labour of operating personnel
Intensity and raising operating efficiency.
Crank is installed on the insulating sleeve of this penetrating cable clamp connection device, crank respectively with the output shaft of electric wrench with
Extend central siphon and passes through angular wheel engaged transmission.
After such structure, it can both be driven by using electric wrench and extend central siphon rotation, it can also be by shaking
Work, realizes big torsion output in some cases, realize multi-use, avoid electric wrench battery electricity in operation process
Measure situation insufficient and that torsion is inadequate.
The mounting base top of this penetrating cable clamp connection device is provided with the card hole through both sides side wall, the card of bayonet lock and mounting base
Hole coordinates, and the slide block be in bayonet lock downside, and bayonet lock is provided with the card slot through the upper and lower end face of bayonet lock, the position of card slot with it is right
That answers slide block stirs groove location correspondence;After such structure, it is opposite with respect to mounting base that bayonet lock can limit slide block
Position;And in assembly, the driving lever of first torque screw rod and the slot of stirring of slide block coordinate, and recycle the card slot and torque of bayonet lock
Screw rod coordinates, by torque screw rod locking opposite with the position of slide block.
Description of the drawings
Fig. 1 is the front view of this penetrating cable clamp connection device embodiment.
Fig. 2 is the front view of this penetrating cable clamp connection device embodiment penetrating cable clamp ontology.
Fig. 3 is the stereogram of this penetrating cable clamp connection device embodiment penetrating cable clamp ontology.
Fig. 4 is the left view of this penetrating cable clamp connection device embodiment mounting base, shaft, slide block and bayonet lock.
Fig. 5 is the stereogram of this penetrating cable clamp connection device embodiment mounting base, shaft, slide block.
Fig. 6 is cuing open for the left view that this penetrating cable clamp connection device embodiment extends central siphon, insulating sleeve and electric wrench
View.
Specific implementation mode
As shown in Figures 1 to 6
This penetrating cable clamp connection device includes penetrating cable clamp ontology 1 and mounting assembly 2.
Penetrating cable clamp ontology 1 includes upper shell 11, lower housing 12, ground loop 15, drainage thread installation folder 13 and two torques
Screw rod 14.
Upper shell 11 is to strengthen engineering plastics material, and 11 lower face of upper shell is provided with the first puncture wire casing 11a and first and connects
Geosyncline, the first puncture wire casing 11a and the first ground slot all extend to the front and rear end of upper shell 11, and upper shell 11 is also provided with two
A threaded hole through its upper and lower end face, the first cell wall for puncturing wire casing 11a are equipped with multiple upper knife edge 11b, drainage thread installation
Folder 13 is fixed with upper shell 11, is provided with threading hole 13b in drainage thread installation folder 13, and drainage thread installation folder 13 sets that there are three locking screws
Bolt 13a, clamping screw 13a are stretched into across 13 outer wall of drainage thread installation folder in threading hole 13b, and upper shell 11 is internally provided in connection
The metalwork of blade 11b and drainage thread installation folder 13(It is not shown in figure).
Lower housing 12 is to strengthen engineering plastics material, and 12 upper surface of lower housing is provided with the second puncture wire casing 12a and second and connects
Geosyncline, the second puncture wire casing 12a and the second ground slot all extend to the front and rear end of upper shell 11, and the second puncture wire casing 12a is opened
Mouth is corresponding with the first puncture wire casing 11a aperture positions of upper shell 11, and the first ground slot of the second ground slot and upper shell 11 is opened
Mouthful position corresponds to, lower housing 12 also open there are two through thereon, the through-hole of lower face, the screw thread of the position and upper shell 11 of through-hole
Hole site corresponds to, and the second cell wall for puncturing wire casing 12a is equipped with multiple lower blade 12b.
The threaded hole of two torque screw rods 14 and two upper shells 11, two lower housings 12 through-hole be to correspond to close
System, two torque screw rods 14 run through the correspondence through-hole of lower housing 12 and coordinate with the corresponding threaded hole of upper shell 11, each torque
14 lower sidewall of screw rod is equipped with postive stop baffle 14a, and radially direction extends there are four driving lever 14b 14 bottom end of torque screw rod, turns round
Square screw rod 14 can be broken when being reached 30N by torsion, and the parts driving lever 14b are detached from torque screw rod 14.
The second of lower housing 12 punctures wire casing 12a and punctures wire casing 11a composition receiving high-tension bus-bars with the first of upper shell 11
Puncture string holes, ground loop 15 is in the second ground slot of lower housing 12 and the first ground slot of upper shell 11, ground loop 15
Also by the metalwork inside lower housing 12(It is not shown in figure)It is connected to lower blade 12b.
Mounting assembly 2 includes mounting base 21, shaft 23, extends central siphon 24, insulating sleeve 25 and two slide blocks 22.
The generally rectangular-shape of mounting base 21, upper surface, left side and the right side of mounting base 21 are designed with opening, installation
Seat 21 upwardly extends two pieces of baffle 21a for 12 both sides side wall of lower housing to be clamped.
Two slide blocks 22 and two torque screw rods 14 are one-to-one relationship, and 22 upper surface of slide block is provided with and torque spiral shell
Slot 22a is stirred in the driving lever 14b cooperations of bar 14, and 22 lower part outer wall of slide block is equipped with tooth socket 22b, and slide block 22 is in mounting base 21
Interior, torque screw rod 14 is stretched into mounting base 21 by the upper surface opening of mounting base 21 and is coordinated with slide block 22.
23 upper end of shaft is stretched into mounting base 21, and 23 upper end of shaft is equipped with gear, shaft 23 under all slide blocks 22
Portion can be rotated by gear engaged transmission, shaft 23 with respect to mounting base 21, and 23 lower end of shaft is stretched out outside mounting base 21, shaft
23 lower parts are hexagon shape.
21 top of mounting base is provided with the horizontal card hole for running through front and rear sides side wall, and bayonet lock 27 and the card hole of mounting base coordinate,
The slide block 22 is in 27 downside of bayonet lock, and the lower face of bayonet lock 27 is contacted with slide block upper surface, and 27 rear end face of bayonet lock is provided with
Card slot 27a through 27 upper and lower end face of bayonet lock, the positions card slot 27a and corresponding slide block 22 to stir the positions slot 22a corresponding, turn round
Square screw rod 14 passes through the card slot 27a of bayonet lock 27, the driving lever 14b of torque screw rod 14 to coordinate with the slot 22a that stirs of slide block 22.
Extend central siphon 24 to be sleeved in insulating sleeve 25, extends 24 lower part of central siphon and be fixed with angular wheel, extend central siphon 24
Upper and lower end portion respectively by bearing support in insulating sleeve 25,23 lower part of shaft be sleeved on extend central siphon 24 in, make to prolong
It stretches and is fixed between 24 upper end of central siphon and shaft 23, shaft 23, which follows, extends the rotation of central siphon 24,25 upper end of insulating sleeve and mounting base
Fixed between 21, insulating sleeve 25 will not be circumferentially rotated with respect to mounting base 21.
25 lower part of insulating sleeve is provided with dismountable electric wrench 28, and crank is equipped on 25 lower sides of insulating sleeve
26, crank 26 stretches into insulating sleeve, stretches into 26 end of crank of insulating sleeve 25, extends 24 lower end of central siphon and electric wrench
28 output shaft is separately installed with intermeshing angular wheel, and 26 end of crank, extension central siphon 24 are defeated with electric wrench 28
Engaged transmission between shaft.
When installation ground wire, ground wire is hung on ground loop 15 in advance, user holds insulating sleeve 25, and high pressure is led
Line is placed in the first puncture wire casing 11a that the second of lower housing 12 punctures wire casing 12a and upper shell 11, operates electric wrench 28
It is driven by angular wheel and extends the rotation of central siphon 24, and then two slide blocks 22 and two torque screw rods 14 is driven to rotate, torque
Screw rod 14 and 11 screw-thread fit of upper shell, two block baffle 21a of mounting base 21 are resisted against on lower housing 12, upper shell 11 gradually to
Lower housing 12 is close, until the upper knife edge 11b of upper shell 11 and the lower blade 12b of lower housing 12 puncture the height of overhead transmission line respectively
Wire insulation is pressed, after upper knife edge 11b and lower blade 12b contacts good with main traverse line, torque screw rod 14 continues stress and hair
Raw fracture, 14 lower end of torque screw rod are detached from mounting assembly 2, complete installation exercise.
It breaks down in electric wrench 28 or when not enough power supply, crank 26 can be manually operated, passed through using crank 26
Angular wheel driving extends central siphon 24 and rotates, and can equally reach above-mentioned purpose.
The step of the step of installing drainage thread is grounded with above-mentioned installation is consistent, differs only in:First drainage thread is installed
Threading hole 13b, locking clamping screw 13a are provided in folder 13.
Above-described is only one embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the principle of the present invention, several variations and modifications can also be made, these also should be regarded as belonging to this hair
Bright protection domain.
Claims (8)
1. a kind of penetrating cable clamp connection device, it is characterized in that:
Including penetrating cable clamp ontology and mounting assembly;
The penetrating cable clamp ontology includes upper shell, lower housing, ground loop, drainage thread installation folder and at least one torque spiral shell
Bar;
Upper shell lower face is provided with the first puncture wire casing and the first ground slot, and upper shell is also provided at least one through its upper and lower side
The threaded hole in face, the first cell wall for puncturing wire casing are equipped with several upper knife edges, and drainage thread installation folder is fixed with upper shell, upper shell
It is internally provided with the metalwork of connection upper knife edge and drainage thread installation folder;
Lower housing upper surface is provided with the second puncture wire casing and the second ground slot, and the first of the second puncture line channel opening and upper shell wears
Pierce wire casing aperture position correspond to, the second ground slot is corresponding with the first ground slot aperture position of upper shell, lower housing be also provided with to
A few through-hole for running through its upper and lower end face, the second cell wall for puncturing wire casing are equipped with several lower blades;
The torque screw rod is one-to-one relationship, the torque with the threaded hole of the upper shell, the through-hole of the lower housing
Screw rod runs through the correspondence through-hole of lower housing and coordinates with the corresponding threaded hole of upper shell, and the torque screw rod lower sidewall is equipped with limit
Position baffle;
Ground loop is in the second ground slot of lower housing and the first ground slot of upper shell, ground loop by lower housing inside
Metalwork is connected to lower blade;
Mounting assembly includes mounting base, shaft and at least one slide block, and the slide block is one a pair of with the torque screw rod
It should be related to, slide block upper surface is provided with stirs slot with what torque screw rod lower end coordinated, and slide block is in mounting base, and shaft stretches into
In mounting base, shaft passes through toothing engaged transmission with all slide block lower parts.
2. penetrating cable clamp connection device according to claim 1, it is characterized in that:
Described its radial direction of torque screw rod lower end edge is extended with several driving levers.
3. penetrating cable clamp connection device according to claim 1, it is characterized in that:
Threading hole is provided in drainage thread installation folder, drainage thread installation folder is equipped with several clamping screws, and the clamping screw, which passes through, to be drawn
Streamline installation folder outer wall stretches into threading hole.
4. penetrating cable clamp connection device according to claim 1, it is characterized in that:
Mounting base upwardly extends two pieces of baffles for lower housing both sides side wall to be clamped.
5. penetrating cable clamp connection device according to claim 1, it is characterized in that:
Mounting assembly further includes extending central siphon and insulating sleeve, outrigger shaft pipe sleeve in insulating sleeve, extend central siphon upper end with
It is fixed between shaft, it is fixed between insulating sleeve upper end and mounting base.
6. penetrating cable clamp connection device according to claim 5, it is characterized in that:
Insulating sleeve lower part is provided with electric wrench, and the output shaft of electric wrench is connect with central siphon is extended.
7. penetrating cable clamp connection device according to claim 6, it is characterized in that:
Crank is installed, crank is engaged with the output shaft of electric wrench with central siphon is extended by angular wheel respectively on insulating sleeve
Transmission.
8. penetrating cable clamp connection device according to claim 1, it is characterized in that:
Mounting base top is provided with the card hole through both sides side wall, the card hole cooperation of bayonet lock and mounting base, and the slide block is in card
Pin downside, the groove location of stirring that bayonet lock corresponds to slide block are provided with the card slot through the upper and lower end face of bayonet lock.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810404719.XA CN108336698A (en) | 2018-04-28 | 2018-04-28 | Penetrating cable clamp connection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810404719.XA CN108336698A (en) | 2018-04-28 | 2018-04-28 | Penetrating cable clamp connection device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN108336698A true CN108336698A (en) | 2018-07-27 |
Family
ID=62934610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810404719.XA Pending CN108336698A (en) | 2018-04-28 | 2018-04-28 | Penetrating cable clamp connection device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108336698A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114825230A (en) * | 2022-04-13 | 2022-07-29 | 国网福建省电力有限公司莆田供电公司 | Power transmission line bolt temperature measuring device and using method thereof |
-
2018
- 2018-04-28 CN CN201810404719.XA patent/CN108336698A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114825230A (en) * | 2022-04-13 | 2022-07-29 | 国网福建省电力有限公司莆田供电公司 | Power transmission line bolt temperature measuring device and using method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN208863206U (en) | Electronic insulation Gao Zhiju with nearly current potential distance detection alarm function | |
CN104767153A (en) | Intelligent insulation wire puncturing grounding clamp | |
CN103247971A (en) | Portable three-phase conductor synchronous lifting holding pole | |
CN204789734U (en) | Electrician's utensil is tested to portable high pressure | |
CN101916929B (en) | Multi-angle rotary ground wire hitching device | |
CN108183457A (en) | A kind of rotary type electric power overhead transmission line cable deicer | |
CN105006661A (en) | Grounding device | |
CN108336698A (en) | Penetrating cable clamp connection device | |
CN210404094U (en) | Anti-drop high-voltage power line grounding wire with alarm device | |
CN206461101U (en) | One kind is powered to use line clamping device | |
CN108183431A (en) | A kind of rotation clamped-in style waste wire peeling wrap-up | |
CN208190125U (en) | The tool for connecting of penetrating cable clamp | |
CN108448486A (en) | The tool for connecting of penetrating cable clamp | |
CN208190146U (en) | Penetrating cable clamp connection device | |
CN203911344U (en) | A power transmission line grounding line kite dismounting apparatus | |
CN201266689Y (en) | 220kv and 66kv ground wire hanging insulated operating lever | |
CN210897693U (en) | Three-phase short circuit grounding wire for 10kV overhead line of distribution network | |
CN205355749U (en) | Separate empty support street sign indicating number | |
CN204967122U (en) | Insulated wire puncture ground connection anchor clamps | |
CN205159850U (en) | Water -resistant power case is removed to multi -functional mixture | |
CN215221040U (en) | Earthing pole convenient to installation | |
CN214625414U (en) | Grounding device for electric tower | |
CN210517020U (en) | Novel electric grounding device | |
CN107769082A (en) | It is a kind of can gyration ground wire operating lever | |
CN101695840B (en) | Portable shielding top copper bar bus cutting machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |