CN207004152U - 500kV vertically aligned same tower double back transmission line cross-arm side checkposts - Google Patents
500kV vertically aligned same tower double back transmission line cross-arm side checkposts Download PDFInfo
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- CN207004152U CN207004152U CN201720962984.0U CN201720962984U CN207004152U CN 207004152 U CN207004152 U CN 207004152U CN 201720962984 U CN201720962984 U CN 201720962984U CN 207004152 U CN207004152 U CN 207004152U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 23
- 230000000116 mitigating effect Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 description 5
- 238000012546 transfer Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model discloses a kind of 500kV vertically aligned same tower double back transmission line cross-arm side checkposts, it is 7 font cards, horizontal segment and vertical section including surrounding cross-arm bayonet socket, provided with vertical passageway is provided with slot, vertical section, the outer wall plan vertical of vertical passageway is disposed with U-type groove for the outer end of horizontal segment.In practice, the cross-arm bayonet socket that two side cards are surrounded with its horizontal segment and vertical section respectively is stuck on two cross-arms on the vertically aligned same tower double back transmission lines of 500kV, then the component that coordinating to stretch connects two cross-arm side checkposts, control telescopic component is retracted and two cross-arm side checkposts can be clamped on corresponding cross-arm respectively, cross-arm side checkpost is located in same horizontal plane with cross-arm after connection, and thread-tightening lead screw is connected in the vertical passageway of cross-arm side checkpost vertical section, safe space will not be reduced, ensure insulating properties.
Description
Technical field
It the utility model is related to a kind of Maintenance of Electric Transmission Line cross-arm fixture, more particularly to a kind of 500kV vertically aligned
Same tower double back transmission line cross-arm side checkpost.
Background technology
With the expansion of power network scale, using common-tower double-return or multiple-loop line transmission line of electricity by as China's power grid construction
Development trend.And compared with conventional double back transmission line, the vertically aligned transmission line of electricity arrangement of 500kV common-tower double-returns is more tight
Gather, effectively improve natural transmission power, reduce line corridor width, reduce circuit comprehensive cost, application prospect is very wide.
But because the vertically aligned transmission line of electricity turriform of 500kV common-tower double-returns is extremely special, it is traditional carry the Line tool by
Pull-rod, screw mandrel, thread-lifting hook and cross-arm fixture composition, during tightening up and loosening screw mandrel, realize the transfer of load.This side
Formula is not applied for the vertically aligned transmission line of electricity of 500kV common-tower double-returns, and main cause has：Traditional approach carries out load transfer
When, cross-arm side fixture is arranged on cross-arm lower plane, and after installing screw mandrel on cross-arm card, screw mandrel can take a part of space, and silk
Bar is simultaneously on-insulated, causes safe distance compacter；So at present, its is exhausted for the vertically aligned transmission line of electricity of 500kV common-tower double-returns
Edge changes extremely difficult also not a kind of suitable cross-arm fixture to carry out the replacing of insulator.
Utility model content
The purpose of this utility model is that providing a kind of parallel cross-arm installs, and the 500kV that will not reduce safe distance is vertical
Arrangement type same tower double back transmission line cross-arm side checkpost.
This 500kV vertically aligned same tower double back transmission lines cross-arm side checkpost provided by the utility model, it is 7
Font card, including the horizontal segment and vertical section of cross-arm bayonet socket are surrounded, the outer end of horizontal segment is vertical provided with being provided with slot, vertical section
Passage, the outer wall plan vertical of vertical passageway are disposed with U-type groove.
In order to improve the reliability of clamping, the outer face of the horizontal segment is set to extend downwardly from forming limiting stand.
The cross section of the vertical passageway is U-shaped, and the U-type groove has two, is respectively arranged in the two side of vertical passageway
On.
For the ease of carrying and operating, hollow out is all provided with the inside of the vertical section and horizontal segment to mitigate deadweight.
In order to further reduce deadweight, the width of the vertical section is set to be gradually reduced from up to down.
The utility model is in practice, cross-arm card that two side cards are surrounded with its horizontal segment and vertical section respectively
Mouthful it is stuck on two cross-arms on the vertically aligned same tower double back transmission lines of 500kV, then coordinates the component that can stretch by two
Individual cross-arm side checkpost connection, control telescopic component are retracted and two cross-arm side checkposts can be clamped on corresponding cross-arm respectively,
Cross-arm side checkpost is located in same horizontal plane with cross-arm after connection, and thread-tightening lead screw is connected into cross-arm side checkpost vertical section
In vertical passageway, safe space will not be reduced, ensure insulating properties.
Brief description of the drawings
Fig. 1 is the axle side schematic diagram of one preferred embodiment of the utility model.
Fig. 2 is schematic diagram when the present embodiment coordinates telescopic component use.
Illustrate sequence number：
1-cross-arm side checkpost, 2-telescopic component, 11-horizontal segment, 12-vertical section, 111-slot, 121-it is vertical logical
Road, 122-U-type groove.
Embodiment
As shown in figure 1, the vertically aligned same tower double back transmission line cross arm lateral sides of this 500kV that the present embodiment provides
Card 1, it be 7 font cards, including surrounds the horizontal segment 11 and vertical section 12 of cross-arm bayonet socket, the outer end of horizontal segment provided with slot 111,
Provided with cross section it is U-shaped vertical passageway 121 in vertical section, the plan vertical of the two side of vertical passageway is disposed with U-type groove
122.The outer face of horizontal segment extends downwardly from forming limiting stand to improve the reliability of clamping.The inside of vertical section and horizontal segment is equal
Hollow out is conducted oneself with dignity the width design of vertical section to be gradually reduced from up to down with mitigating deadweight with further reduce, so as to
It is easy to the carrying of electrician, the convenience for improving operation also reduces labor intensity.
The present embodiment is in practice, cross-arm that two cross-arm side checkposts are surrounded with its horizontal segment and vertical section respectively
Bayonet socket is stuck on two cross-arms on the vertically aligned same tower double back transmission lines of 500kV, then coordinates telescopic component 2 by two horizontal strokes
Load side card is connected on cross-arm, and the slot of the both ends of telescopic component respectively with two cross-arm side checkpost horizontal segments is connected, then controls
Telescopic component is retracted and two cross-arm side checkposts can be clamped on corresponding cross-arm respectively, cross-arm side checkpost and cross-arm after connection
It is connected in same horizontal plane, and by thread-tightening lead screw in the vertical passageway of cross-arm side checkpost vertical section, peace will not be reduced
The total space, so as to ensure insulating properties.Nut in tension assembly is fixed on to the top of vertical passageway by U-type groove again, will
Thread-tightening lead screw vertically arrange by passage, you can enters the tensioning of row conductor, insulator can be carried out more after completing the transfer of load
Change.
By of the present utility model with the installation that stringing instrument can not only be completed in narrow space, and can also
Ensure that cross-arm side checkpost is located in same horizontal plane with cross-arm, thread-tightening lead screw can be made to be connected to the perpendicular of cross-arm side checkpost vertical section
Into passage, safe space will not be reduced, so as to ensure insulating properties.The utility model is also small with conducting oneself with dignity, portable
Advantage, the convenience of handling can be effectively improved, reduce the labor intensity of operating personnel.
Claims (5)
- A kind of 1. 500kV vertically aligned same tower double back transmission lines cross-arm side checkpost, it is characterised in that：It is 7 font cards, Horizontal segment and vertical section including surrounding cross-arm bayonet socket, the outer end of horizontal segment are erected provided with vertical passageway is provided with slot, vertical section U-type groove is disposed with to the outer wall plan vertical of passage.
- 2. 500kV vertically aligned same tower double back transmission lines cross-arm side checkpost according to claim 1, its feature exist In：The outer face of the horizontal segment extends downwardly from forming limiting stand.
- 3. 500kV vertically aligned same tower double back transmission lines cross-arm side checkpost according to claim 1, its feature exist In：The cross section of the vertical passageway is U-shaped, and the U-type groove has two, is respectively arranged on the two side of vertical passageway.
- 4. 500kV vertically aligned same tower double back transmission lines cross-arm side checkpost according to claim 1, its feature exist In：The equal hollow out in the inside of the vertical section and horizontal segment is conducted oneself with dignity with mitigating.
- 5. 500kV vertically aligned same tower double back transmission lines cross-arm side checkpost according to claim 1, its feature exist In：The width of the vertical section is gradually reduced from up to down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720962984.0U CN207004152U (en) | 2017-08-03 | 2017-08-03 | 500kV vertically aligned same tower double back transmission line cross-arm side checkposts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720962984.0U CN207004152U (en) | 2017-08-03 | 2017-08-03 | 500kV vertically aligned same tower double back transmission line cross-arm side checkposts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207004152U true CN207004152U (en) | 2018-02-13 |
Family
ID=61458473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720962984.0U Active CN207004152U (en) | 2017-08-03 | 2017-08-03 | 500kV vertically aligned same tower double back transmission line cross-arm side checkposts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207004152U (en) |
-
2017
- 2017-08-03 CN CN201720962984.0U patent/CN207004152U/en active Active
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