CN109361172B - Universal ground rod for overhead transmission line ground wire - Google Patents
Universal ground rod for overhead transmission line ground wire Download PDFInfo
- Publication number
- CN109361172B CN109361172B CN201811343126.3A CN201811343126A CN109361172B CN 109361172 B CN109361172 B CN 109361172B CN 201811343126 A CN201811343126 A CN 201811343126A CN 109361172 B CN109361172 B CN 109361172B
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- fixed
- sleeve
- insulating tube
- universal
- transmission line
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 230000000694 effects Effects 0.000 claims description 2
- 230000001012 protector Effects 0.000 claims 1
- 230000006698 induction Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 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
Landscapes
- Electric Cable Installation (AREA)
Abstract
The invention discloses a universal grounding rod for an overhead transmission line ground wire, which comprises an insulating tube, a connector seat fixed at the head end of the insulating tube, a locking sleeve fixed with the connector seat, a fixed sleeve rotationally connected with the locking sleeve, a fixed wire clamp with a clamping opening, a movable clamping block arranged in the clamping opening, and a universal nut connected with the movable clamping block, wherein the universal nut is rotationally connected with the fixed sleeve, and the universal nut is driven by the insulating tube to rotate and drives the movable clamping block to move during rotation. When the invention is used, the relative angle between the wire clamp and the insulating tube is selected according to the distance and the angle between the overhead ground wire and the cross arm of the operation site, so that the opening of the wire clamp faces any direction, and the use requirements of various operation sites are met.
Description
Technical Field
The invention belongs to the technical field of power engineering, and particularly relates to an overhead transmission line ground wire grounding rod which is mainly suitable for being used when a high-voltage overhead transmission line ground wire is grounded.
Background
The power industry is basic industry and public utility for supporting national economy and social development, and along with the rapid development of national economy and continuous improvement of the living standard of people, the dependence on power is higher and higher. Therefore, the security of the power grid is an important guarantee for the security of the power grid, and the security of the power transmission line is an important guarantee for the national life of the power grid. In order to ensure the safety and stability of the power transmission equipment, the equipment must be overhauled, eliminated and hidden danger is eliminated strictly according to regulations. For the operation of 500KV and above overhead transmission lines contacting with the ground wire, effective grounding of the overhead ground wire is a reliable technical means for guaranteeing personal safety and avoiding induction electric accidents.
The ground wire shorting mode widely used in operation at present adopts 10kV ground rod to replace ground wire ground rod, and when in use, the ground wire clamp is fixed on the insulating ground wire through the rotation of an insulating tube by an operator, and because the ground rod clamp body cannot rotate and cannot guarantee that the insulating tube is perpendicular to the ground wire, and because of the existence of a ground wire insulator, the insulating tube and the ground wire have a certain angle when the operator operates on an overhead cross arm, so that the clamp cannot be firmly clamped on the ground wire, poor contact between the clamp and the conductor often occurs, the clamp slides down or induction discharge is generated between the conductor and the clamp, the clamp and the ground wire are burnt out, and the wire clamp is damaged even personal electric shock accidents are caused by induction during long-time operation. The purpose of ensuring the operation safety cannot be achieved. When in operation, under the condition of larger distance, operators are required to stretch out of the cross arm, the operation difficulty is high, and the danger coefficient is high.
The ground wire grounding mode is high in technical difficulty, time and labor are consumed, working procedures are complex, operation planning is seriously influenced, working efficiency is reduced, and operation safety cannot be guaranteed.
Disclosure of Invention
The invention aims to solve the technical problem of providing the universal grounding rod for the overhead transmission line ground wire, so that the wire clamp can be firmly clamped on the ground wire.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides an overhead transmission line ground wire universal earthing rod, includes the insulating tube, is fixed in the joint seat of insulating tube head end, with the fixed lock sleeve of joint seat, rotate the fixed sleeve of being connected with the lock sleeve, have the fixed fastener of clamp mouth, locate the movable clamp splice in the clamp mouth, with the universal nut of movable clamp splice connection, universal nut rotates with the fixed sleeve to be connected, universal nut is driven by the insulating tube and rotates and drive movable clamp splice removal when rotating, the fixed sleeve has horizontal part and is connected with horizontal part and axial extension to the insulating tube axial extension, universal nut activity passes horizontal part, axial extension passes through lock bolt and lock nut with the lock sleeve and is connected, can make the fixed sleeve rotate around lock bolt after the lock nut unscrews, and fixed sleeve is fixed with the lock sleeve after the lock nut is screwed.
According to the technical scheme, the wire clamp can rotate around the universal nut, the fixing sleeve and the locking sleeve can also rotate relatively, when the wire clamp is used, the relative angle between the wire clamp and the insulating tube is selected according to the distance and the angle between the overhead ground wire and the cross arm of the operation site, the opening of the wire clamp can face any direction, and the use requirements of various operation sites are met. The special tool for grounding the ground wire of the high-voltage overhead power transmission line is quick, effective, safe and reliable, so that equipment which is used for safely, quickly and simply completing an operation area in the process of contacting the ground wire in the power transmission line maintenance operation is reliably grounded, and reliable safety guarantee is provided for the maintenance operation.
Preferably, the connecting part of the axial extension part and the locking sleeve is connected with a positioning pin, the locking sleeve is uniformly provided with positioning grooves along the axial direction, and the fixing sleeve and the locking sleeve are fixed at different relative positions through the jogging of the positioning pin and different positioning grooves on the locking sleeve.
Preferably, the two ends of the connector seat are respectively provided with a small-diameter cylinder part and a large-diameter cylinder part which are connected with each other, the locking sleeve is rotationally connected to the outer side of the small-diameter cylinder part, and the large-diameter cylinder part is rotationally connected to the head end of the insulating tube.
Preferably, the locking sleeve is fixed with the joint seat through a set screw.
Preferably, the large diameter cylindrical portion and the insulating tube are fixed by an elastic cylindrical pin.
Preferably, the insulating tube is connected with a rubber hand guard.
The specific technical scheme and the beneficial effects of the invention are described in detail in the following detailed description with reference to the accompanying drawings.
Drawings
The invention is further described with reference to the drawings and detailed description which follow:
FIG. 1 is a schematic diagram of the outline structure of the present invention;
fig. 2 is a schematic cross-sectional view of the present invention.
Detailed Description
Referring to fig. 1 and 2, an overhead transmission line ground wire universal grounding rod comprises an insulating tube 15, a connector seat 16 fixed at the head end of the insulating tube, a locking sleeve 12 fixed with the connector seat 16, a fixed sleeve 4 rotationally connected with the locking sleeve 12, a fixed wire clamp 1 with a clamping opening, a movable clamping block 8 arranged in the clamping opening, and a universal nut 2 connected with the movable clamping block 8, wherein the universal nut 2 is rotationally connected with the fixed sleeve 4, the universal nut 2 is driven by the insulating tube 15 to rotate and converts rotation into linear movement through a screw thread matched structure when rotating, so that the movable clamping block 8 is driven to move, or the ground wire is locked by matching with the fixed wire clamp, or the ground wire is loosened, and a circumferential positioning structure is arranged between the locking sleeve 12 and the fixed sleeve 4 so as to fix a position after the locking sleeve 12 and the fixed sleeve 4 relatively rotate.
The wire clamp can rotate around the universal nut 2 under the action of external force, and meanwhile, the locking sleeve 12 and the fixing sleeve 4 can rotate relatively, so that the opening of the wire clamp can face any direction through free rotation in two axial directions, and when the wire clamp is used, the relative angle between the fixed wire clamp 1 and the insulating tube 15 is selected according to the distance and the angle between the overhead ground wire and the cross arm in the operation site, so that the requirements of all operation conditions are met. The invention has the characteristics of light weight, flexible operation, high operation efficiency, wide application range, convenient carrying, high safety and the like, effectively reduces the labor intensity of operators, ensures the safety of the operators and equipment, saves manpower and material resources and meets the use requirements of various operation sites. When the insulating tube 15 is rotated by an operator, the universal nut 2 is driven to rotate, so that the movable clamping block 8 moves forwards or backwards, and the purpose of clamping or loosening the ground wire is achieved.
The fixing sleeve 4 is provided with a horizontal part and an axial extension part which is connected with the horizontal part and axially extends towards the insulating tube, the universal nut 2 movably penetrates through the horizontal part, the circumferential positioning structure comprises a locking bolt 6 and a locking nut 7, the axial extension part is connected with the locking sleeve 12 through the locking bolt 6 and the locking nut 7, the tightness degree of the fixing sleeve 4 and the locking sleeve 12 can be adjusted through the rotation of the locking nut 7, the fixing sleeve 4 can be rotated around the locking bolt 6 after the locking nut is unscrewed, the fixing sleeve 4 and the locking sleeve 12 are fixed after the locking nut 7 is screwed, and different relative positions between the fixing sleeve 4 and the locking sleeve 12 are achieved. The lock nut 7 may be a wing nut to facilitate manual tightening or loosening.
The circumferential positioning structure further comprises a positioning pin 5, the joint of the axial extension part and the locking sleeve 12 is connected with the positioning pin 5, positioning grooves are uniformly distributed on the locking sleeve 12 along the axial direction, and the fixing sleeve 4 and the locking sleeve 12 are fixed at different relative positions through the jogging of the positioning pin and different positioning grooves on the locking sleeve.
The two ends of the connector base 16 are respectively provided with a small-diameter cylinder part and a large-diameter cylinder part which are connected with each other, the locking sleeve 12 is rotatably connected to the outer side of the small-diameter cylinder part, and the large-diameter cylinder part is rotatably connected to the head end of the insulating tube. The locking sleeve 12 is fixed with the joint seat 16 through the set screw 14. The position between the joint seat 16 and the locking sleeve 12 is adjusted by the set screw 14 on the locking sleeve 12, so that the circle center of the joint seat is ensured to coincide with the circle center of the locking sleeve 12. The large diameter cylindrical portion and the insulating tube 15 are fixed by the elastic cylindrical pin 10.
The universal grounding rod further comprises a connecting insulating tube 15 and a chain 13 of the universal nut 2, one end of the universal nut 2 is provided with a U-shaped clamping opening extending towards the head of the insulating tube, a fixing bolt 11 is connected between two side walls of the U-shaped clamping opening, one end of the chain is connected with the elastic cylindrical pin 10, and the other end of the chain is connected with the fixing bolt 11. The connection mode of the chain 13 and the fixing bolt 11 is adopted, so that the insulation pipe can be guaranteed to rotate to drive the universal nut to rotate, and the fixing sleeve 4 is allowed to rotate around the locking bolt 6. In addition, the insulating tube 15 is connected with a rubber hand guard 17 for the operator to hold.
When the device is used, the grounding end of the grounding rod is fixed on the iron tower, good grounding is guaranteed, an operator rotates the rubber hand guard 17 to enable the movable clamping block 8 to slide during use, the wire clamp clamping opening is opened, the wire clamp is rotated, the wire clamp clamping opening faces the direction easy to install, the locking nut 7 is rotated to enable the locating pin 5 to be separated from the locating groove, the fixing sleeve 4 is rotated to enable the wire clamp to rotate in the direction taking the locking bolt 6 as the shaft, the direction easy to install on site is achieved, the locking nut 7 is rotated, and the locating pin 5 is clamped into the locating groove on the locking sleeve 12. The operator holds the rubber hand guard 17 and puts the fastener on the overhead ground wire, adjusts the opening direction and makes the clamp mouth card on the overhead ground wire, after the fastener card is on the ground wire, rotates insulating tube 15 through the rubber hand guard 17, under the drive of chain 13, universal nut 2 promotes movable fastener 8 and removes, until pressing from both sides the fastener on the overhead ground wire. After the work is finished, the insulating tube 15 is rotated through the rubber hand guard 17, under the transmission action of the chain 13, the universal nut 2 drives the mutually movable clamping blocks 8 to move, so that the wire clamp clamped on the ground wire is loosened until the wire clamp body can be taken down from the overhead ground wire. And then the grounding end is taken down, and the whole work is completed.
By adopting the technical scheme, the invention has the beneficial effects that:
1. the invention has the advantages of convenient carrying, light weight, simple operation and wide application range;
2. the invention designs a mounting mode of the wire clamp rotation, and meets the grounding condition of all overhead ground wires involved in the current production;
3. the invention shortens the operation time and reduces the labor intensity;
4. in design and manufacture, the possible adverse conditions in operation are avoided, and the rapid operation is realized.
While the invention has been described in terms of specific embodiments, it will be appreciated by those skilled in the art that the invention is not limited to the specific embodiments described above. Any modifications which do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the appended claims.
Claims (6)
1. The utility model provides an overhead transmission line ground wire universal ground connection stick, its characterized in that, including insulating tube, be fixed in the joint seat of insulating tube head end, with the fixed lock sleeve of joint seat, with lock sleeve rotation connection's fixed sleeve, have the fixed fastener of clamp mouth, locate the movable clamp splice in the clamp mouth, with the universal nut of movable clamp splice connection, universal nut rotates with fixed sleeve to be connected, universal nut is driven by the insulating tube and rotates and drive movable clamp splice and remove when rotating, fixed sleeve has horizontal part and is connected and to the axial extension of insulating tube axial extension with horizontal part, universal nut activity passes horizontal part, axial extension passes through lock bolt and lock nut with the lock sleeve and is connected, can make fixed sleeve rotate around lock bolt after the lock nut unscrews, with fixed sleeve and lock sleeve fixed after the lock nut is screwed.
2. An overhead transmission line earth universal grounding rod as defined in claim 1, wherein: the axial extension part is connected with the locating pin at the joint of the locking sleeve, locating grooves are uniformly distributed on the locking sleeve along the axial direction, and the fixing sleeve and the locking sleeve are fixed at different relative positions through the jogging of the locating pin and different locating grooves on the locking sleeve.
3. An overhead transmission line earth universal grounding rod as defined in claim 1, wherein: the two ends of the connector seat are respectively provided with a small-diameter cylinder part and a large-diameter cylinder part which are connected with each other, the locking sleeve is rotationally connected to the outer side of the small-diameter cylinder part, and the large-diameter cylinder part is rotationally connected to the head end of the insulating tube.
4. An overhead transmission line earth universal grounding rod according to claim 3, characterized in that: the locking sleeve is fixed with the joint seat through a fastening bolt.
5. An overhead transmission line earth universal grounding rod according to claim 3, characterized in that: the large-diameter cylindrical part is fixed with the insulating tube through an elastic cylindrical pin.
6. An overhead transmission line earth universal grounding rod as defined in claim 1, wherein: the insulating tube is connected with a rubber hand protector.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310671228.2A CN116845768A (en) | 2018-11-13 | 2018-11-13 | Grounding method for high-voltage overhead transmission line ground wire |
| CN201811343126.3A CN109361172B (en) | 2018-11-13 | 2018-11-13 | Universal ground rod for overhead transmission line ground wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811343126.3A CN109361172B (en) | 2018-11-13 | 2018-11-13 | Universal ground rod for overhead transmission line ground wire |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310671228.2A Division CN116845768A (en) | 2018-11-13 | 2018-11-13 | Grounding method for high-voltage overhead transmission line ground wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109361172A CN109361172A (en) | 2019-02-19 |
| CN109361172B true CN109361172B (en) | 2023-09-26 |
Family
ID=65345056
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811343126.3A Active CN109361172B (en) | 2018-11-13 | 2018-11-13 | Universal ground rod for overhead transmission line ground wire |
| CN202310671228.2A Pending CN116845768A (en) | 2018-11-13 | 2018-11-13 | Grounding method for high-voltage overhead transmission line ground wire |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310671228.2A Pending CN116845768A (en) | 2018-11-13 | 2018-11-13 | Grounding method for high-voltage overhead transmission line ground wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN109361172B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109755775B (en) * | 2019-03-06 | 2023-11-10 | 国网上海市电力公司 | Telescopic multi-steering circuit grounding wire |
| CN114530792B (en) * | 2022-03-04 | 2023-10-20 | 国网浙江省电力有限公司绍兴供电公司 | Ground line inspection robot access platform track and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7019955U (en) * | 1970-05-29 | 1971-12-02 | Pfisterer Elektrotech Karl | EARTHING ROD. |
| JP2007309067A (en) * | 2006-05-15 | 2007-11-29 | Eiichi Kikuchi | Hardware for single tube of temporary building |
| JP2008148401A (en) * | 2006-12-07 | 2008-06-26 | Nagaki Seiki Co Ltd | Coupled-to-top-end tool for remote operation rod, and remote operation mounting method using the same |
| JP2009077593A (en) * | 2007-09-21 | 2009-04-09 | Sumiden Asahi Industries Ltd | Grounding tool |
| CN202423591U (en) * | 2012-01-11 | 2012-09-05 | 冯江婷 | Ground rod used on overhead transmission line |
| CN206490196U (en) * | 2017-03-09 | 2017-09-12 | 国家电网公司 | A kind of switch cubicle inner cable head Special grounding wire |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112018072584A2 (en) * | 2016-05-02 | 2019-02-19 | Quanta Associates, L.P. | lock grounding clamp |
-
2018
- 2018-11-13 CN CN201811343126.3A patent/CN109361172B/en active Active
- 2018-11-13 CN CN202310671228.2A patent/CN116845768A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7019955U (en) * | 1970-05-29 | 1971-12-02 | Pfisterer Elektrotech Karl | EARTHING ROD. |
| JP2007309067A (en) * | 2006-05-15 | 2007-11-29 | Eiichi Kikuchi | Hardware for single tube of temporary building |
| JP2008148401A (en) * | 2006-12-07 | 2008-06-26 | Nagaki Seiki Co Ltd | Coupled-to-top-end tool for remote operation rod, and remote operation mounting method using the same |
| JP2009077593A (en) * | 2007-09-21 | 2009-04-09 | Sumiden Asahi Industries Ltd | Grounding tool |
| CN202423591U (en) * | 2012-01-11 | 2012-09-05 | 冯江婷 | Ground rod used on overhead transmission line |
| CN206490196U (en) * | 2017-03-09 | 2017-09-12 | 国家电网公司 | A kind of switch cubicle inner cable head Special grounding wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116845768A (en) | 2023-10-03 |
| CN109361172A (en) | 2019-02-19 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20230817 Address after: 312099 No. 58, Shengli East Road, Shaoxing City, Zhejiang Province Applicant after: STATE GRID ZHEJIANG ELECTRIC POWER CO., LTD. SHAOXING POWER SUPPLY Co. Applicant after: STATE GRID ZHEJIANG ELECTRIC POWER Co.,Ltd. Applicant after: Zhejiang Huadian Equipment Testing Research Institute Co.,Ltd. Address before: 312000 No. 58 Shengli East Road, Zhejiang, Shaoxing Applicant before: STATE GRID ZHEJIANG ELECTRIC POWER CO., LTD. SHAOXING POWER SUPPLY Co. Applicant before: STATE GRID ZHEJIANG ELECTRIC POWER Co.,Ltd. |
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