CN203747061U - High-voltage grounding wire clamp - Google Patents
High-voltage grounding wire clamp Download PDFInfo
- Publication number
- CN203747061U CN203747061U CN201420002071.0U CN201420002071U CN203747061U CN 203747061 U CN203747061 U CN 203747061U CN 201420002071 U CN201420002071 U CN 201420002071U CN 203747061 U CN203747061 U CN 203747061U
- Authority
- CN
- China
- Prior art keywords
- montant
- grounding wire
- voltage
- vertical rod
- cross beam
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- 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 - Fee Related
Links
- 238000003825 pressing Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Elimination Of Static Electricity (AREA)
Abstract
The utility model relates to safety facilities on a high-voltage transmission and transformation line, and specifically relates to a high-voltage grounding wire clamp which can be used to make stationary contacts of a drop-out fuse be in good contact condition and can be used to satisfy working grounding safety requirements. The high-voltage grounding wire clamp comprises a connection cross beam. Three or more vertical rods are fixedly connected onto the connection cross beam. A position limiting horizontal plate is inserted into one end of each vertical rod. Each vertical rod is sleeved with a spring. A press plate is inserted into the other end of each vertical rod. The outer surface of the other end of each vertical rod is provided with external threads. The external threads on the other end of each vertical rod are provided with a nut. Both of the position limiting horizontal plate and the press plate are arranged in a manner that the position limiting horizontal plate and the press plate are parallel to the cross beam. According to the utility model, advantages of convenient installation, firm structure, good safety, low fabrication cost and good universality can be realized.
Description
Technical field
The utility model relates to the safety devices on high voltage power transmission and transforming circuit, is specifically related to one and can makes the contact of fuse switch fixed contact good, can meet the high-voltage grounding wire chuck of working earthing safety requirements.
Background technology
In daily production maintenance work, having is much the service work of carrying out on transformer body, as transformer place lacks, change, lightning arrester regular maintenance, the work such as rotation are all to overhaul on transformer body, in these type of work, operating personnel on high-tension line inevitably will touch transformer pile head, high pressure downlead, the positions such as lightning arrester, due to high voltage drop-out type fuse cutout insulation porcelain major gene surface and oil contaminant, acid and alkali corrosion, arc through, ageing of insulation, the reasons such as misty rain weather, the porcelain knob class of insulation that can cause insulating declines, even lose insulating capacity, even if now taken off crane arm, high voltage drop-out type fuse cutout fixed contact still may be charged.Therefore, must install high-voltage grounding wire at high voltage side of transformer, this is the very necessary technical measures for ensureing that operating personnel's personal safety is taked.But in high-voltage grounding wire installing link, often find to exist great potential safety hazard.
High-voltage grounding wire is generally arranged on upper/lower positions: fuse switch fixed contact high pressure downlead fixed screw place, or at transformer high-voltage downlead dress ground loop, then high-voltage grounding wire pile crown place and transformer high-voltage pile crown place on ground loop place, lightning arrester.In the time of above position installing high-voltage grounding wire; owing to being subject to the restriction of operating condition, when practical operation, arm and body part are coordinated very inconveniently, and some positions cannot be installed even; causing high-voltage grounding wire installing can not meet safety requirements completely, there is very large potential safety hazard in ground protection.Its reason have following some: 1, at fuse switch fixed contact high pressure downlead fixed screw place installing high-voltage grounding wire, the high-voltage grounding wire chuck using is at present crotch-shaped, it is mainly applicable to install on the line use, and in the time that transformer body carries out service work installing, the earth connection chuck of hook solid and high voltage drop-out type fuse cutout fixed contact shape dissmilarity, do not mate, be not easy to operation, can not form good between the two, effectively contact, and high pressure downlead fixed screw is shorter, the contact-making surface of earth connection chuck and downlead fixed screw is very little, very inconvenient when earth connection installing operation, earth connection easily falls, even if installing can not meet the requirement of job site short circuit current completely reluctantly.2, electric company is existing public becomes the more than 95% installation high-voltage ground loop that goes between not in transformer platform area, and high pressure downlead is all insulated conductor, and high-voltage grounding wire can not be installed at high pressure downlead place.3, owing to need to removing transformer or removing lightning arrester in the time changing transformer, lightning arrester work, therefore high-voltage grounding wire can not be installed on transformer high-voltage pile crown or lighting arrestor pile.It is to cause field operation to install the main cause that has potential safety hazard in this link at high-voltage grounding wire that high-voltage grounding wire installing inconvenience maybe cannot be installed.
Summary of the invention
The purpose of this utility model is in order to solve the problems of the technologies described above, and provides a kind of easy for installation, sound construction, safe, cost of manufacture is low, the high-voltage grounding wire chuck of highly versatile.
For achieving the above object, a kind of high-voltage grounding wire chuck of the utility model design, comprise a connecting cross beam, on described connecting cross beam, be fixedly connected with three or above montant, one end of described montant is interspersed with spacing transverse slat, on described every montant, is all set with spring, the other end of described montant is interspersed with pressing plate, the other end outer surface of described montant is provided with external screw thread, and on the external screw thread of the other end of described montant, cover has nut, and described spacing transverse slat and pressing plate are all arranged in parallel with described crossbeam.
In technique scheme, in described three or above montant, the montant in the middle of being positioned at is provided with elongated end, on described elongated end, is fixedly connected with jaw.
In technique scheme, in described three or above montant, the montant in the middle of being positioned at, for circular, is positioned at the montant of both sides for oval.
The utility model uses pressing plate to coordinate with spring, and ensureing has enough contact-making surfaces and keep certain mechanical pressure between earth connection chuck and high voltage drop-out type fuse cutout fixed contact jaw, can fully contact between the two, thereby meet safety requirements.In use procedure, can pass through nut regulating spring pressure, assembling, dismounting is simple, easy to operate, applicable to different operating environment, be applicable to all kinds of fuse switch fixed contacts, there is general applicability, eliminated the potential safety hazard of high-voltage grounding wire installing link, meet working site safety requirements and regulate
Carry out the each wire clamp cost of cost accounting according to material object low, existing electric company high-voltage grounding wire is installed, invest little, if to 3000 Duo Getai districts, small and medium-sized cities go between ground loop install transformation need investment only need more than 30 ten thousand yuan, just extremely cheap comparatively speaking, and save a large amount of costs of labor and transformation time, there is huge economic benefit and social benefit.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
In figure: 1-connecting cross beam; 2-montant; 3-transverse slat; 4-spring; 5-pressing plate; 6-jaw; 7-nut.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
High-voltage grounding wire chuck as shown in Figure 1, comprise a connecting cross beam 1, on connecting cross beam 1, be fixedly connected with three montants 2, one end of montant 2 is interspersed with spacing transverse slat 3, on every montant 2, be all set with spring 4, the other end of montant 2 is interspersed with pressing plate 5, the other end outer surface of montant 2 is provided with external screw thread, on the external screw thread of the other end of montant 2, cover has nut 7, spacing transverse slat 3 and pressing plate 5 are all arranged in parallel with crossbeam 1, in three montants, montant 2 in the middle of being positioned at is provided with elongated end 2.1, on elongated end 2.1, be fixedly connected with jaw 6, jaw 6 is sleeved on elongated end 2.1 and by welding and fixedly secures.
In three or above montant 2, the montant 2 in the middle of being positioned at, for circular, is positioned at the montant 2 of both sides for oval, and correspondingly, spacing transverse slat 3 and pressing plate 5 are provided with the hole of matching, this structural strengthening the active force between montant 2 and spacing transverse slat 3, pressing plate 5.
Connecting cross beam 1 in the present embodiment, montant 2, transverse slat 3, spring 4, nut 7, jaw 6 select the copper material with good conductive ability and corrosion resistance to make, and meet the maximum short circuit current thermal capacity in operation location and the requirement of maximum short circuit current.
When use, the crotch part of high-voltage earthing thread end is placed between jaw 6, the contact of jaw 6 both sides is clamped the crotch of high-voltage earthing thread end, fixing high voltage drop-out type fuse cutout fixed contact interspersed being fixed on connecting cross beam 1 or by two hooks of crane arm bottom is suspended on connecting cross beam 1, can carry out high-voltage grounding wire installing, operation easily, contact well with fuse switch fixed contact, can meet the safety requirements of working earthing, eliminate and on fuse switch fixed contact, installed the potential safety hazard existing in this link of high-voltage grounding wire.After being used to complete, dismantle also very convenient.
The content not being described in detail in this specification belongs to the known prior art of professional and technical personnel in the field.
Claims (3)
1. a high-voltage grounding wire chuck, it is characterized in that: comprise a connecting cross beam (1), on described connecting cross beam (1), be fixedly connected with three or above montant (2), one end of described montant (2) is interspersed with spacing transverse slat (3), on described every montant (2), be all set with spring (4), the other end of described montant (2) is interspersed with pressing plate (5), the other end outer surface of described montant (2) is provided with external screw thread, on the external screw thread of the other end of described montant (2), cover has nut (7), described spacing transverse slat (3) and pressing plate (5) are all arranged in parallel with described crossbeam (1).
2. high-voltage grounding wire chuck according to claim 1, is characterized in that: in described three or above montant (2), the montant (2) in the middle of being positioned at is provided with elongated end (2.1), is fixedly connected with jaw (6) on described elongated end (2.1).
3. high-voltage grounding wire chuck according to claim 1 and 2, is characterized in that: in described three or above montant (2), the montant (2) in the middle of being positioned at, for circular, is positioned at the montant (2) of both sides for oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420002071.0U CN203747061U (en) | 2014-01-03 | 2014-01-03 | High-voltage grounding wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420002071.0U CN203747061U (en) | 2014-01-03 | 2014-01-03 | High-voltage grounding wire clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203747061U true CN203747061U (en) | 2014-07-30 |
Family
ID=51346823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420002071.0U Expired - Fee Related CN203747061U (en) | 2014-01-03 | 2014-01-03 | High-voltage grounding wire clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203747061U (en) |
-
2014
- 2014-01-03 CN CN201420002071.0U patent/CN203747061U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20210103 |