CN202712459U - Angle adjustable ground wire device for electric power system - Google Patents
Angle adjustable ground wire device for electric power system Download PDFInfo
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- CN202712459U CN202712459U CN201220413700.XU CN201220413700U CN202712459U CN 202712459 U CN202712459 U CN 202712459U CN 201220413700 U CN201220413700 U CN 201220413700U CN 202712459 U CN202712459 U CN 202712459U
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- angle
- wire
- wire clamp
- electric power
- power system
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Abstract
The utility model relates to an angle adjustable ground wire device for the electric power system. The ground wire device comprise a wire clamp 1, an angle adjusting device 2 and an operating rod 3, wherein the tail end of the wire clamp 1 is connected with one end of the angle adjusting device 2, the other end of the angle adjusting device 2 is connected with the operating rod 3, and a circular ring 4 is added to the left side of the wire clamp 1. The angle adjusting device 2 is employed between the wire clamp 1 and the operating rod 3, and is formed by fixing an upper connecting handle 6 with a notch and a lower connecting handle 7 with a notch via a screw 8, thereby realizing angle adjustment between the wire clamp 1 and the operating rod 3. The circular ring 4 on the side of the wire clamp 1 is used for dismounting the wire clamp of a ground wire. Compared with conventional grounding wires, the improved ground wire has the advantages that the cost is low, the operation is convenient and rapid, assembling and disassembling are easy, the wire clamp is not easy to be loosened, the installation difficulty caused by angular problems of a leading-out wire of the device is overcome, it is solved the problems that gravity influence of the operating rod leads loosening of the wire clamp and changes maintenance states of the device, and it is solved the installation difficulty of the ground wire caused by that handheld ground wires are nearly parallel to the lead.
Description
Technical field
A kind of electric power system service kit, especially a kind of angle for electric power system can be regulated grounding wire device.
Background technology
When electric power apparatus examination, need each incoming call end of this equipment is used the ground connection short circuit, in the prior art, earthing wire clip is connected with action bars orthoscopic, has following present situation at wire mounting or dismounting earth connection:
1) 220kV in the 220kV transformer station, 110kV line side isolating switch lead-out wire steepness are large, that have even perpendicular to the ground drawing, and very difficult at this class wire installing earth connection, earth connection needs become approximately 90 with wire
0Can hang up, and need to cooperate by double ladder, needs two to three joint extension bars, needs two to three people.The gay installs this winding ground wire generally needs 20-30 minute, and woman's installing then needs the longer time, and the woman need climb in double harness at stair and lift very heavy earth connection, probably because of crank, height occurs fall; Also may earth connection have been swung to electric equipment because holding bad earth connection, cause the person or device security accident.The wire steepness is very large, after grounding wire mounting gets on, because of the impact of the gravity of action bars own, earthing wire clip can be subject to the action bars action of gravitation and slowly get loose and fall down, and does not satisfy inspecting state, increases security risk, therefore earth connection also can be broken, and increases maintenance cost.
2) trackman installs earth connection on the line tension insulator string outboard wire in the open air, because of the earth connection held and wire near parallel, the installing earth connection is very difficult.
3) need the maintainer to cooperate at sleeve of main transformer lead-in wire installing earth connection, very trouble.
4) the folded wire of earthing wire clip is thicker, and is very difficult when the operations staff takes off.
Summary of the invention
The purpose of this utility model provides that a kind of cost is low, convenient to operation, mounting or dismounting easily, the wire clamp angle that is not easy to get loose can regulate grounding wire device.
For solving the problems of the technologies described above, the technical scheme that the utility model proposes is: a kind of angle for electric power system can be regulated grounding wire device, comprises wire clamp 1, angle regulator 2, action bars 3; One end of wire clamp 1 terminal connection angle adjusting device 2, the other end attended operation bar 3 of angle regulator 2, wire clamp 1 left surface increases annulus 4, wire clamp 1 is provided with ground connection copper cash 5, it is characterized in that: adopt angle regulator 2 between wire clamp 1 and the action bars 3, angle regulator 2 is fixing by screw 8 by up and down 2 connection handles (6,7) with the age of a draught animal, just can realize the angular adjustment between wire clamp 1 and the action bars 3.The annulus 4 of wire clamp 1 side is the usefulness that makes things convenient for earthing wire clip to retract.
The beneficial effects of the utility model are, a kind of installing difficulty that not caused by equipment lead-out wire angle problem is provided, be not subjected to the action bars gravity effect to cause earthing wire clip to get loose and change the overhaul of the equipments state, the earth connection held and wire have been overcome near parallel, the installing earth connection difficulty that causes.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the connection handle enlarged drawing;
Fig. 3 is the angle regulator schematic diagram;
Fig. 4, Fig. 5 are force analysis figure;
Among the figure: 1 is wire clamp; 2 is angle regulator; 3 is action bars; 4 is annulus; 5 is the ground connection copper cash; 6,7 is connection handle; 8 is screw.
Embodiment
With reference to accompanying drawing 1 ~ 5, a kind of angle for electric power system can be regulated grounding wire device, comprises wire clamp 1, angle regulator 2, telescopic action bars 3; One section of wire clamp 1 terminal connection angle adjusting device 2, the other end attended operation bar 3 of angle regulator 2, wire clamp 1 left surface increases annulus 4, adopt angle regulator 2 between wire clamp 1 and the action bars 3, angle regulator 2 is fixed and adjusting angle by screw of handle by up and down 2 connection handles (6,7) with the age of a draught animal; Action bars 3 adopts two joints or the above more piece insulating bar of two joints to consist of stretching structure; Angle regulator 2 is made by PC material or metal material or alloy material; Angle regulator 2 adjustable-angle scopes are 15
0~ 345
0
During electric power apparatus examination, according to the angle of electrical lead, regulate the angle regulator 2 on the earth connection, make it convenient installing, angular range is commonly used to be 15
0, 30
0, 45
0, 60
0, 75
0According to wire height overhead, action bars is elongated again, wire clamp is hung on the wire; After overhaul of the equipments is complete, when hanging over such as wire clamp that Ka Detai is tight on the wire is inconvenient to take off, can be by insulating rod, the working head of insulating rod is inserted annulus 4, take annulus 4 as fulcrum, earth connection is easy to just can take off, and finishes whole maintenance process.
We the earth connection of usefulness at ordinary times with improve after earth connection be simplified to respectively Mathematical Modeling Fig. 4, Fig. 5 and analyze:
These two Mathematical Modelings see that on the whole earthing wire clip is subjected to a downward gravity and a frictional force that makes progress, and gravity can produce two effects: a power makes earth connection toward the whereabouts, and a power makes earth connection center on the O point and turns clockwise.In the practical application, because the holding power F4 of frictional force F3 and lower end earth wire guarantees the dynamic balance of vertical direction, we only consider that now the power of rotating around O point, this power also are to cause the earth connection main cause that comes off.Gravity G can be decomposed into F1 and F2, and F2 is inoperative to rotating, and we ignore and do not consider that F1 will produce a moment F1*L, and at this moment frictional force can produce a reciprocal moment and stops its rotation.Fig. 4, because the L distance is three extension bars of the general outfit of 2m(220kV earth connection approximately, three extension bars are loaded onto rear altogether long 4m), the moment that F1 produces is far longer than the moment that frictional force produces, can make earth connection be rotated clockwise to wire clamp and vertical wires near parallel, cause earth connection to come off.And Fig. 5, because the about 5cm of L distance, the moment of generation (approximately be Fig. 4 moment 1/40) is far smaller than the moment that frictional force produces, and can not cause earth connection to get loose from wire.
According to above analysis result, we take following measures just can solve this difficult problem:
1) increases an angle regulator at earthing wire clip and action bars junction, can realize 15
0, 30
0, 45
0, 60
0, 75
0Angular transition.For at hanging earthing conductor on the wire perpendicular to the ground or on the wire parallel with arm, can select the angle that needs, the installing earth connection no longer difficulty that becomes, and earth connection is not easy to fall down.
2) we take telescopic action bars, are convenient to carrying.On sleeve of main transformer lead-in wire or 220kV interval wire install earth connection, can be not again because of wire overhead high can't the extension ask the maintainer to help.
3) annulus 4 is installed in the earthing wire clip end, if wire clamp hangs over when Ka Detai is tight on the wire is inconvenient to take off, the operations staff can insert annulus 4 with the insulating rod working head, and upwards firmly, earth connection is easy to just can take off take annulus 4 as fulcrum.
Claims (6)
1. an angle that is used for electric power system can be regulated grounding wire device, comprises wire clamp (1), angle regulator (2), action bars (3); One end of the terminal connection angle adjusting device of wire clamp (1) (2), the other end attended operation bar (3) of angle regulator (2), wire clamp (1) left surface increases annulus (4), it is characterized in that: adopt angle regulator (2 between wire clamp (1) and the action bars, angle regulator (2) is fixed by screw by up and down two connection handles with the age of a draught animal, just can realize the angular adjustment between wire clamp (1) and the action bars (3); The annulus (4) of wire clamp (1) side is the usefulness that makes things convenient for earthing wire clip to retract.
2. a kind of angle for electric power system according to claim 1 can be regulated grounding wire device, it is characterized in that: described angle regulator (2) is made by PC material or metal material or alloy material.
3. a kind of angle for electric power system according to claim 1 can be regulated grounding wire device, it is characterized in that: described action bars (3) adopt two joints or two successively above more piece insulating bar consist of stretching structure.
4. a kind of angle for electric power system according to claim 1 can be regulated grounding wire device, it is characterized in that: described degree adjusting device (2) adjustable-angle scope is 15
0~ 345
0
5. a kind of angle for electric power system according to claim 1 can be regulated grounding wire device, it is characterized in that: described degree adjusting device (2) adjusting angle scope commonly used is 15
0~ 75
0
6. a kind of angle for electric power system according to claim 1 can be regulated grounding wire device, it is characterized in that: the best adjusting angle of described degree adjusting device (2) is 15
0Or 30
0Or 45
0Or 60
0Or 75
0
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220413700.XU CN202712459U (en) | 2012-08-21 | 2012-08-21 | Angle adjustable ground wire device for electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220413700.XU CN202712459U (en) | 2012-08-21 | 2012-08-21 | Angle adjustable ground wire device for electric power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202712459U true CN202712459U (en) | 2013-01-30 |
Family
ID=47592727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220413700.XU Expired - Lifetime CN202712459U (en) | 2012-08-21 | 2012-08-21 | Angle adjustable ground wire device for electric power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202712459U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810774A (en) * | 2012-08-21 | 2012-12-05 | 湖南省电力公司永州电业局 | Angle-adjustable grounding wire device for electric power system |
| CN103346451A (en) * | 2013-06-29 | 2013-10-09 | 国家电网公司 | 220kV transformer test short-circuit wire connector |
| CN103594827A (en) * | 2013-11-13 | 2014-02-19 | 国家电网公司 | Clamping end structure of ground wire |
| CN107689495A (en) * | 2017-07-11 | 2018-02-13 | 广西电网有限责任公司电力科学研究院 | A kind of earthing clamp of Portable angle continuously adjustabe |
| CN112701550A (en) * | 2020-12-22 | 2021-04-23 | 海南电网有限责任公司保亭供电局 | Auxiliary device for hanging ground wire |
-
2012
- 2012-08-21 CN CN201220413700.XU patent/CN202712459U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810774A (en) * | 2012-08-21 | 2012-12-05 | 湖南省电力公司永州电业局 | Angle-adjustable grounding wire device for electric power system |
| CN103346451A (en) * | 2013-06-29 | 2013-10-09 | 国家电网公司 | 220kV transformer test short-circuit wire connector |
| CN103594827A (en) * | 2013-11-13 | 2014-02-19 | 国家电网公司 | Clamping end structure of ground wire |
| CN107689495A (en) * | 2017-07-11 | 2018-02-13 | 广西电网有限责任公司电力科学研究院 | A kind of earthing clamp of Portable angle continuously adjustabe |
| CN112701550A (en) * | 2020-12-22 | 2021-04-23 | 海南电网有限责任公司保亭供电局 | Auxiliary device for hanging ground wire |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |
|
| CX01 | Expiry of patent term |