CN103545686B - Ground wire device special for low voltage work - Google Patents
Ground wire device special for low voltage work Download PDFInfo
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- CN103545686B CN103545686B CN201310487463.0A CN201310487463A CN103545686B CN 103545686 B CN103545686 B CN 103545686B CN 201310487463 A CN201310487463 A CN 201310487463A CN 103545686 B CN103545686 B CN 103545686B
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- low voltage
- ground wire
- insulating bar
- screw cap
- special
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- 238000002955 isolation Methods 0.000 claims abstract description 21
- 239000004020 conductor Substances 0.000 claims abstract description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 239000010949 copper Substances 0.000 claims abstract description 9
- 238000009422 external insulation Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 244000309464 bull Species 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
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Abstract
The invention discloses a kind of ground wire device special for low voltage work, include short-circuit grounding wire, earthing clamp, earth connection copper tip, special isolation hook stick, screw cap type earthing rod.Ground wire device special for low voltage work of the present invention, can adopt the dedicated nut formula earthing rod of different size, adopts fastening-type connected mode with the bus bar of low voltage electrical equipment or conductor stud, be connected firmly, contacting section is even, and effective cross-section is maximum, and reliability is high.
Description
Technical field
The present invention relates to a kind of low pressure operation Work tool, particularly a kind of ground wire device special for low voltage work.
Background technology
At present, temporary grounding and the short circuit of most 400V ammeter box, switch-box, comprehensive distribution box, step down side electric equipment conductor adopt conventional portable earth connection, the Portable short-circuit grounding wire of current domestic most manufacturers design exploitation, the connection of conductor end generally adopts pressure type wire clamp to carry out clamping.Therefore based on the earth connection of this structural design, structure influence by bonding conductor is larger, particularly low voltage electrical equipment, exists that conductor is little, bus interphase structure is compact, installing space is narrow and small, easily causes that to connect contact-making surface uneven, effective cross-section is not enough, the problem such as easily come off, so once equipment is sent a telegram here suddenly, possibly cannot effectively realize power ground and short circuit object, the personal security worked on equipment can not be ensured, cause personal injury.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, and provide one to be connected firmly, the ground wire device special for low voltage work that applied widely, fail safe is high.
A kind of ground wire device special for low voltage work, is characterized in that; Include short-circuit grounding wire, earthing clamp, earth connection copper tip, special isolation hook stick, screw cap type earthing rod:
Described screw cap type earthing rod includes joint pin and grounding head, it is outer polygonal sleeve that described joint pin includes outer peripheral face, barrel bore is provided with internal thread, the internal thread of that one end that barrel bore is connected with bus bar or wire bolt matches with the bolt on bus bar or conductor, the other end of barrel bore is connected with grounding head, described grounding head is a kind of multidiameter, the outer peripheral face of the large end of multidiameter is outer polygonal, be provided with the external screw thread matched with barrel bore screw thread at multidiameter small end, the step place of multidiameter is provided with nut;
Described special isolation hook stick includes mutual sheathing external insulation action bars together, the leading section of insulating bar is provided with the polygonal sleeve of imperial palace outside, described interior insulating bar can do stretching motion in insulating bar outside and be longer than external insulation action bars, the leading section of interior insulating bar is provided with little interior polygonal sleeve, little interior polygonal sleeve can pass the polygonal sleeve of imperial palace, interior insulating bar is provided with the location notch of one or more, on insulating bar, relevant position is provided with alignment pin outside, this alignment pin can extend into the location notch of interior insulating bar, nut on the polygonal sleeve of described imperial palace and screw cap type earthing rod grounding head is used in combination, the outer polygonal of little interior polygonal sleeve and the large end of screw cap type earthing rod grounding head matches,
One end of described short-circuit grounding wire is connected with earthing clamp, and the other end of described short-circuit grounding wire separates and is provided with multiple links, and link is provided with earth connection copper tip.
Ground wire device special for low voltage work of the present invention, in use, first screw cap type earthing rod is utilized, each earth connection copper tip of that one end of short-circuit grounding wire bull bifurcated is inserted in the small end of the grounding head of screw cap type earthing rod, then joint pin and grounding head are connected to form conductor end, and temporarily can not lock between joint pin and grounding head, that one end then short-circuit grounding wire with earthing clamp is connected on equipment ground body, after identifying the true no-voltage of low-voltage equipment, hand-held special isolation hook stick immediately, use the large end of multidiameter that the little interior polygonal jacket casing of special isolation hook stick is sleeved on screw cap type earthing rod, on the wherein bus of phase screw cap type earthing rod being fastened on low-voltage equipment or the bolt of conductor, then toward insulating bar in post-tensioning, make little interior polygonal sleeve retrude, expose the polygonal sleeve of imperial palace, the polygonal jacket casing of imperial palace of special isolation hook stick is then used to be located on the nut of screw cap type earthing rod, tightening nut, the joint pin of screw cap type earthing rod and grounding head are screwed, thus is grounded the installation of line.
The side of the joint pin of described screw cap type earthing rod is provided with holding screw.
After the joint pin of screw cap type earthing rod and grounding head are locked and put in place, then screw the screw of side, both fitnesss can be improved.
The outer peripheral face of the external insulation action bars of special isolation hook stick is provided with insulating case.
Insulating case is set in the periphery of the outer action bars of special isolation hook stick, the handling of insulating bar can be improved on the one hand, also can improve the insulating properties of insulated operating rod on the other hand.
In special isolation hook stick, the exposed junction of insulating bar is provided with insulating case.
Described earthing clamp is a kind of spiral compression formula wire end wire clamp.
Described screw cap type earthing rod has the Multiple Type of different size, and corresponding special isolation hook stick also has the Multiple Type of multiple different size.
Insulating case is arranged with in the periphery of the short-circuit grounding wire of the close bull crotch of short-circuit grounding wire.
Short-circuit grounding wire arranges insulating case, can further improve the insulating properties at this place, operate and the damage that causes because need often to hold to avoid herein.
In sum, the present invention's following advantage compared to existing technology:
Ground wire device special for low voltage work of the present invention, 1, the dedicated nut formula earthing rod of different size can be adopted, adopt fastening-type connected mode with the bus bar of low voltage electrical equipment or conductor stud, be connected firmly, contacting section is even, and effective cross-section is maximum, and reliability is high.
2, dedicated nut formula earthing rod can according to the conductor stud specification of low voltage electrical equipment with the use of, applied widely.
3, installation process adopts dedicated operations rod, and coordinate special isolation operating sleeve, not easily touch the conductor of electric equipment, fail safe is high.
Ground wire device special for low voltage work in use, is connected firmly, and contact is good, even if sent a telegram here suddenly by the equipment external cable of short circuit, also can carry out ground connection and short circuit, ensure the personal security of installation on this ammeter box conductor.This product embodies grounding technology progress, has good application prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation of special isolation hook stick of the present invention.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the structural representation of the joint pin of screw cap type earthing rod.
Fig. 4 is the structural representation of the grounding head of screw cap type earthing rod.
Fig. 5 is the assembling schematic diagram of ground wire device special for low voltage work.
Fig. 6 is another angle schematic diagram of ground wire device special for low voltage work.
Little interior polygonal sleeve 44 imperial palace polygonal sleeve 45 alignment pin 46 insulating case 5 screw cap type earthing rod 51 joint pin 511 sleeve 52 grounding head 521 multidiameter of insulating bar 42 external insulation action bars 43 large end 522 multidiameter small end 523 nut in label declaration 1 short-circuit grounding wire 2 earthing clamp 3 earth connection copper tip 4 insulated operating rod 41.
Embodiment
Below in conjunction with embodiment, the present invention is described in more detail.
Embodiment 1
A kind of ground wire device special for low voltage work, includes short-circuit grounding wire 1, earthing clamp 2, earth connection copper tip 3, special isolation hook stick 4, screw cap type earthing rod 5:
Described screw cap type earthing rod includes joint pin 51 and grounding head 52, described joint pin includes the sleeve 511 that outer peripheral face is outer-hexagonal, barrel bore is provided with internal thread, the internal thread of that one end that barrel bore is connected with bus bar or wire bolt matches with the bolt on bus bar or conductor, the other end of barrel bore is connected with grounding head, described grounding head is a kind of multidiameter, the outer peripheral face of the large end 521 of multidiameter is outer-hexagonal shape, the external screw thread matched with barrel bore screw thread is provided with at multidiameter small end 522, the step place of multidiameter is provided with nut 523,
Described special isolation hook stick includes mutual sheathing external insulation action bars together, the leading section of insulating bar is provided with imperial palace Hexagonal jacket outside, described interior insulating bar 41 can do stretching motion in insulating bar 42 outside and be longer than external insulation action bars, the leading section of interior insulating bar is provided with little interior Hexagonal jacket 43, little interior Hexagonal jacket can pass imperial palace Hexagonal jacket 44, interior insulating bar is provided with the location notch of one or more, on insulating bar, relevant position is provided with alignment pin 45 outside, this alignment pin can extend into the location notch of interior insulating bar, nut on described imperial palace Hexagonal jacket and screw cap type earthing rod grounding head is used in combination, the outer-hexagonal shape of little interior Hexagonal jacket and the large end of screw cap type earthing rod grounding head matches, insulating case 46 is provided with at the outer peripheral face of the external insulation action bars of special isolation hook stick and the exposed junction of interior insulating bar.
One end of described short-circuit grounding wire is connected with earthing clamp, and the other end of described short-circuit grounding wire separates and is provided with multiple links, and link is provided with earth connection copper tip.Insulating case is arranged with in the periphery of the short-circuit grounding wire of the close bull crotch of short-circuit grounding wire.
Described earthing clamp is a kind of spiral compression formula wire end wire clamp.Described screw cap type earthing rod has the two profiles number of different size, and corresponding special isolation hook stick also has the two profiles number of multiple different size.
It is same as the prior art that the present embodiment does not state part.
Claims (6)
1. a ground wire device special for low voltage work, is characterized in that; Include short-circuit grounding wire, earthing clamp, earth connection copper tip, special isolation hook stick, screw cap type earthing rod:
Described screw cap type earthing rod includes joint pin and grounding head, it is outer polygonal sleeve that described joint pin includes outer peripheral face, barrel bore is provided with internal thread, the internal thread of barrel bore one end matches with the bolt on bus bar or conductor, the other end of barrel bore is connected with grounding head, described grounding head is a kind of multidiameter, the outer peripheral face of the large end of multidiameter is outer polygonal, be provided with the external screw thread matched with barrel bore screw thread at multidiameter small end, the step place of multidiameter is provided with nut;
Described special isolation hook stick includes mutual sheathing external insulation action bars together, the leading section of insulating bar is provided with the polygonal sleeve of imperial palace outside, described interior insulating bar can do stretching motion in insulating bar outside and be longer than external insulation action bars, the leading section of interior insulating bar is provided with little interior polygonal sleeve, little interior polygonal sleeve can pass the polygonal sleeve of imperial palace, interior insulating bar is provided with the location notch of one or more, on insulating bar, relevant position is provided with alignment pin outside, this alignment pin can extend into the location notch of interior insulating bar, nut on the polygonal sleeve of described imperial palace and screw cap type earthing rod grounding head is used in combination, the outer polygonal of little interior polygonal sleeve and the large end of screw cap type earthing rod grounding head matches,
One end of described short-circuit grounding wire is connected with earthing clamp, and the other end of described short-circuit grounding wire separates and is provided with multiple links, and link is provided with earth connection copper tip.
2. ground wire device special for low voltage work according to claim 1, is characterized in that: the side of the joint pin of described screw cap type earthing rod is provided with holding screw.
3. ground wire device special for low voltage work according to claim 2, is characterized in that: the outer peripheral face of the external insulation action bars of special isolation hook stick is provided with insulating case.
4. ground wire device special for low voltage work according to claim 3, is characterized in that: in special isolation hook stick, the exposed junction of insulating bar is provided with insulating case.
5. ground wire device special for low voltage work according to claim 4, is characterized in that: described earthing clamp is a kind of spiral compression formula wire end wire clamp.
6. ground wire device special for low voltage work according to claim 5, is characterized in that: described screw cap type earthing rod has the Multiple Type of different size, and corresponding special isolation hook stick also has the Multiple Type of multiple different size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310487463.0A CN103545686B (en) | 2013-10-17 | 2013-10-17 | Ground wire device special for low voltage work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310487463.0A CN103545686B (en) | 2013-10-17 | 2013-10-17 | Ground wire device special for low voltage work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103545686A CN103545686A (en) | 2014-01-29 |
| CN103545686B true CN103545686B (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310487463.0A Active CN103545686B (en) | 2013-10-17 | 2013-10-17 | Ground wire device special for low voltage work |
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| Country | Link |
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| CN (1) | CN103545686B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107689494B (en) * | 2017-07-07 | 2019-06-07 | 国网山东省电力公司临沂供电公司 | Contraction type ground line with insulated handle |
| CN110571545A (en) * | 2019-09-20 | 2019-12-13 | 国网辽宁省电力有限公司营口供电公司 | Special earthing device of 400v air switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201360112Y (en) * | 2009-01-01 | 2009-12-09 | 湖南省电力公司永州冷水滩供电局 | Grounding device for high-tension cable branch box |
| CN202602166U (en) * | 2012-06-06 | 2012-12-12 | 安徽省电力公司淮北供电公司 | Insulated operating lever sleeve |
| CN202855913U (en) * | 2012-06-29 | 2013-04-03 | 成都四威高科技产业园有限公司 | Earthing rod assembly structure |
| CN103268991A (en) * | 2013-05-08 | 2013-08-28 | 国家电网公司 | Grounding device for 10kv cable branch box, ring main unit and ring main box |
| CN203553591U (en) * | 2013-10-17 | 2014-04-16 | 国家电网公司 | A low voltage operation specially used ground wire apparatus |
-
2013
- 2013-10-17 CN CN201310487463.0A patent/CN103545686B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201360112Y (en) * | 2009-01-01 | 2009-12-09 | 湖南省电力公司永州冷水滩供电局 | Grounding device for high-tension cable branch box |
| CN202602166U (en) * | 2012-06-06 | 2012-12-12 | 安徽省电力公司淮北供电公司 | Insulated operating lever sleeve |
| CN202855913U (en) * | 2012-06-29 | 2013-04-03 | 成都四威高科技产业园有限公司 | Earthing rod assembly structure |
| CN103268991A (en) * | 2013-05-08 | 2013-08-28 | 国家电网公司 | Grounding device for 10kv cable branch box, ring main unit and ring main box |
| CN203553591U (en) * | 2013-10-17 | 2014-04-16 | 国家电网公司 | A low voltage operation specially used ground wire apparatus |
Also Published As
| Publication number | Publication date |
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| CN103545686A (en) | 2014-01-29 |
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