CN104112917A - Portable special grounding device - Google Patents
Portable special grounding device Download PDFInfo
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- CN104112917A CN104112917A CN201410315936.3A CN201410315936A CN104112917A CN 104112917 A CN104112917 A CN 104112917A CN 201410315936 A CN201410315936 A CN 201410315936A CN 104112917 A CN104112917 A CN 104112917A
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- hook
- screw
- leading screw
- jacking block
- jaw
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Abstract
The invention provides a portable special grounding device which is composed of a grounding steel chisel, a conductive cable and a hooking fastener. A wiring board is arranged in the upper part of the grounding steel chisel, and the wiring board is connected with the upper end of the conductive cable through a bolt. The lower end of the conductive cable is connected with the upper end of the hooking fastener through a bolt. The hooking fastener is composed of a hook-shaped clamp, a screw and a jaw jacking block. The lower part of the hook-shaped clamp is provided with a threaded hole, and the screw is screwed into the threaded hole through threads. The jaw jacking block is arranged at the upper end of the screw. The upper end of the jaw jacking block is matched with the jaw of the hook-shaped clamp. A screwing wrench is arranged at the lower end of the screw. The portable special grounding device is simple and flexible in installation and operation, and quick and convenient in assembly and disassembly, the contact resistance and the mechanical strength at connection points meet the requirements of regulations, and the temporary grounding electrode and the grounding resistance meet the requirements of regulations.
Description
Technical field
The present invention relates to send power transformation technical field, specifically a kind of portable dedicated earthing device.
Background technology
For realizing State Grid Corporation of China, within 2015, tentatively build up the target call of " the last one three is excellent " Modern Corporation strategy, rely on scientific and technological advances and large-scale strong intelligent grid construction, particularly " ultra high voltage " whole nation is built in length and breadth, rise to national project construction project, city automation (looped network engineering or mutual for engineering hand in hand) and the construction of rural power grids upgrading are in full swing in state's net system, power circuit multiloop, with bar, can not set up and vicinity with electric pressure, the alive circuits such as scissors crossing, build sturdy power grid simultaneously and adopt in a large number pipe tower and Y type or gantry tower, at facility spreading conducting wire, the extensive application of the construction technologies such as mechanical traction, the < < electric power safety working regulation > > circuit pack regulation of promulgating according to State Grid Corporation of China:
3.5.1 job site is if any vicinity, parallel, scissors crossing and with tower erection circuit, for preventing that on interruption maintenance circuit, induced voltage is hurted sb.'s feelings, in needs contact or while approaching wire work, should use individual safety wire;
3.4.7 for the shaft tower of no ground downlead, can adopt temporary grounding body.The sectional area of earth electrode is forbidden to be less than 190mm2(as ф 16 round steel).Earth electrode is forbidden to be less than 0.6m in the subsurface degree of depth.For the higher area of soil resistivity, as rock, rubble, sandy soil etc., should take to increase the measures such as earth electrode radical, length, sectional area or the buried degree of depth and improve earth resistance;
6.4.13.1 when contiguous or crossing live-line are taked tension stringing, hauling machine, tensioner body, pull rope, lead wire and earth wire coaster, by the releasing pulley of both sides, spanning the transmission line road, answered ground connection.When contiguous 750kV and above circuit unwrapping wire, operating personnel should stand on special wire netting, the necessary ground connection of wire netting;
5.3.10 the drafting tool such as winch is answered ground connection, and the wire in let-down and erection process also answers ground connection to prevent induced electricity.
In sum: power circuit pipe tower, steel tower, unfolding take-up reel support, trailing equipment, controller switching equipment shell must just can carry out standardized work construction after reliable ground, to implement the concrete behave that < < safety > > carries out < < safety > >, greatly increase safe construction coefficient, stop industrial accident.
Summary of the invention
Technical assignment of the present invention is to provide a kind of portable dedicated earthing device.
Technical scheme of the present invention realizes in the following manner, comprise that ground connection drill rod, conductor cable, hook connect securing member, wherein, the top of ground connection drill rod is provided with terminal block, terminal block is bolted the upper end of conductor cable, and the upper end that the lower end of conductor cable connects securing member by bolt and hook is connected.
Described portable dedicated earthing device, hook connects securing member and is comprised of hook-type pincers, leading screw and jaw jacking block, the bottom of hook-type pincers is provided with screwed hole, leading screw is screwed in screwed hole by screw thread, the upper end of leading screw is provided with jaw jacking block, the jaw of the upper end of jaw jacking block and hook-type pincers matches, and the lower end of leading screw is provided with screwing wrench.
Described portable dedicated earthing device, the lower end of jaw jacking block is provided with blind hole, and the side of blind hole is provided with a hole, silk is provided with screw in hole, the upper end of leading screw is inserted among blind hole, and the upper end of leading screw is also processed with cannelure, and screw is connected with cannelure leading screw upper end is positioned among blind hole.
Portable dedicated earthing device of the present invention has following outstanding beneficial effect:
1) this Special grounding device practicality high, easy to use, quick, be easy to carry;
2) this Special grounding device fitting operation is simple, flexible, and dismounting is efficient and convenient, and the mechanical strength of contact resistance and tie point meets rules requirement, and the temporary grounding utmost point and earth resistance meet rules requirement;
3) this Special grounding device is easy to maintenance, easy to maintenance, only the copper oxide layer of connecting portion need be removed with sand papering, can reuse;
4) this Special grounding device earth resistance is less than 30 ohm, meets the requirement that rules protective earthing is less than 30 ohm;
5) adopt high-intensity aluminium alloy Special wire-clip, bolted crimping, contact resistance is little, solid and reliable;
6) Special wire-clip adopts inclined mouth type, is convenient to install, remove.
We carry out technological innovation according to standardized work construction characteristic in line with convenient, fast, innovation, practicality, simple, the portable principle earth connection of dismounting mode: welding earth electrode, the transparent soft copper heart yearn of multiply, aluminum Special-purpose connecting line folder, adopt copper interconnection technique to increase mechanical strength, reduce contact resistance, meet the facility shell reliable ground requirement of various places.
Accompanying drawing explanation
Fig. 1 is the structural representation of portable dedicated earthing device.
Mark in accompanying drawing represents respectively: ground connection drill rod 1, terminal block 2, conductor cable 3, hook-type pincers 4, jaw jacking block 5, screwed hole 6, leading screw 7, screwing wrench 8, blind hole 9, screw 10, cannelure 11.
Embodiment
Below in conjunction with accompanying drawing, a kind of portable dedicated earthing device of the present invention is described in further detail.
A kind of portable dedicated earthing device of the present invention, its structure is connected securing member and is formed by ground connection drill rod 1, conductor cable 3, hook, wherein, the top of ground connection drill rod 1 is provided with terminal block 2, terminal block 2 is bolted the upper end of conductor cable 3, and the upper end that the lower end of conductor cable 3 connects securing member by bolt and hook is connected.
Described portable dedicated earthing device, hook connects securing member and is comprised of hook-type pincers 4, leading screw 7 and jaw jacking block 5, the bottom of hook-type pincers 4 is provided with screwed hole 6, leading screw 7 is screwed in screwed hole 6 by screw thread, the upper end of leading screw 7 is provided with jaw jacking block 5, the jaw of the upper end of jaw jacking block 5 and hook-type pincers 4 matches, and the lower end of leading screw 7 is provided with screwing wrench 8.
Described portable dedicated earthing device, the lower end of jaw jacking block 5 is provided with blind hole 9, the side of blind hole 9 is provided with a hole, silk is provided with screw 10 in hole, the upper end of leading screw 7 is inserted among blind hole 9, the upper end of leading screw 7 is also processed with cannelure 11, and screw 10 is connected with cannelure 11 leading screw 7 upper ends are positioned among blind hole 9.
During use, ground connection drill rod is hammered into underground.The other end that hook connects securing member tightens together with the equipment connection using in cable disc, line bar, wire barrow and construction operation.
By the use to portable dedicated earthing device, improved the dynamics of carrying out < < safety > >, stop to joint use, scissors crossing, the injury of parallel circuit induced electricity to construction operation personnel, promote the enforcement of standardized work, improve safety construction technological level, greatly improve safe construction coefficient, from guaranteeing that personal safety civilized construction economic benefit is immensurable.
Except the disclosed technical characterictic of specification of the present invention, be the known technology of those skilled in the art.
Claims (3)
1. a portable dedicated earthing device, it is characterized in that comprising that ground connection drill rod, conductor cable, hook connect securing member, wherein, the top of ground connection drill rod is provided with terminal block, terminal block is bolted the upper end of conductor cable, and the upper end that the lower end of conductor cable connects securing member by bolt and hook is connected.
2. portable dedicated earthing device according to claim 1, it is characterized in that hook connects securing member and is comprised of hook-type pincers, leading screw and jaw jacking block, the bottom of hook-type pincers is provided with screwed hole, leading screw is screwed in screwed hole by screw thread, the upper end of leading screw is provided with jaw jacking block, the jaw of the upper end of jaw jacking block and hook-type pincers matches, and the lower end of leading screw is provided with screwing wrench.
3. portable dedicated earthing device according to claim 2, the lower end that it is characterized in that jaw jacking block is provided with blind hole, the side of blind hole is provided with a hole, silk is provided with screw in hole, the upper end of leading screw is inserted among blind hole, the upper end of leading screw is also processed with cannelure, and screw is connected with cannelure leading screw upper end is positioned among blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410315936.3A CN104112917A (en) | 2014-07-04 | 2014-07-04 | Portable special grounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410315936.3A CN104112917A (en) | 2014-07-04 | 2014-07-04 | Portable special grounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104112917A true CN104112917A (en) | 2014-10-22 |
Family
ID=51709618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410315936.3A Pending CN104112917A (en) | 2014-07-04 | 2014-07-04 | Portable special grounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104112917A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901039A (en) * | 2015-04-30 | 2015-09-09 | 国家电网公司 | Multifunctional grounding wire fixation device |
| CN105048230A (en) * | 2015-06-17 | 2015-11-11 | 国网宁夏电力公司石嘴山供电公司 | Crane grounding protection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RO122469B1 (en) * | 2005-10-26 | 2009-06-30 | Romind T & G S.R.L. | Grounding clamp with scraping jaw |
| CN101908673A (en) * | 2010-08-04 | 2010-12-08 | 自贡电业局 | Grounding pin special for paying off |
| CN202487794U (en) * | 2012-04-09 | 2012-10-10 | 重庆市电力公司南岸供电局 | Connector for ground wire |
| CN202905965U (en) * | 2012-10-17 | 2013-04-24 | 宁夏电力公司石嘴山供电局 | Temporary stainless steel grounding body device |
| CN203406429U (en) * | 2013-06-26 | 2014-01-22 | 国家电网公司 | Ground wire apparatus |
| CN103887621A (en) * | 2012-12-21 | 2014-06-25 | 黄石供电公司变电运行中心 | U-shaped-bayonet spiral compress grounding wire clamp |
| CN203967264U (en) * | 2014-07-04 | 2014-11-26 | 秦立刚 | A kind of portable dedicated earthing device |
-
2014
- 2014-07-04 CN CN201410315936.3A patent/CN104112917A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RO122469B1 (en) * | 2005-10-26 | 2009-06-30 | Romind T & G S.R.L. | Grounding clamp with scraping jaw |
| CN101908673A (en) * | 2010-08-04 | 2010-12-08 | 自贡电业局 | Grounding pin special for paying off |
| CN202487794U (en) * | 2012-04-09 | 2012-10-10 | 重庆市电力公司南岸供电局 | Connector for ground wire |
| CN202905965U (en) * | 2012-10-17 | 2013-04-24 | 宁夏电力公司石嘴山供电局 | Temporary stainless steel grounding body device |
| CN103887621A (en) * | 2012-12-21 | 2014-06-25 | 黄石供电公司变电运行中心 | U-shaped-bayonet spiral compress grounding wire clamp |
| CN203406429U (en) * | 2013-06-26 | 2014-01-22 | 国家电网公司 | Ground wire apparatus |
| CN203967264U (en) * | 2014-07-04 | 2014-11-26 | 秦立刚 | A kind of portable dedicated earthing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901039A (en) * | 2015-04-30 | 2015-09-09 | 国家电网公司 | Multifunctional grounding wire fixation device |
| CN105048230A (en) * | 2015-06-17 | 2015-11-11 | 国网宁夏电力公司石嘴山供电公司 | Crane grounding protection device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141022 |