CN106285178A - A kind of corrector for electric pole correction - Google Patents
A kind of corrector for electric pole correction Download PDFInfo
- Publication number
- CN106285178A CN106285178A CN201610861949.XA CN201610861949A CN106285178A CN 106285178 A CN106285178 A CN 106285178A CN 201610861949 A CN201610861949 A CN 201610861949A CN 106285178 A CN106285178 A CN 106285178A
- Authority
- CN
- China
- Prior art keywords
- electric pole
- stay cord
- earth anchor
- hole
- corrector
- Prior art date
- 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.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
- E04H12/345—Arrangements for tilting up whole structures or sections thereof
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of corrector for electric pole correction, including stay cord, one end of described stay cord is provided with rope sling, also include earth anchor, tightener and insulating bar, described rope sling is used for sheathed electric pole, and the other end of stay cord is for being connected with earth anchor, and described tightener is connected with stay cord, tightener for carrying out tensioning to stay cord, and described insulating bar is for by the upper end of rope sling jacking to electric pole.This electric pole corrector simple in construction, it is convenient for carrying.
Description
Technical field
The present invention relates to power grid maintenance equipment technical field, particularly relate to a kind of corrector for electric pole correction.
Background technology
During production practices, the basis of power circuit, owing to suffering rain drop erosion, artificial destruction etc., causes part electric pole
Tilt serious.The operational method of regular correction electric pole needs to step on bar and makes temporary guy；Having inconvenient traffic, around do not have to provide
In the case of the trees of pulling force, in addition it is also necessary to multiple attendants use the mode pulled, complete the traction to electric pole and correct.
Inherently there is due to electric pole inclination in various degree, step on bar operation and there is serious security risk；Prior art
In special pulling equipment not readily transportable and install to field, hillside first-class；Prior art uses and pulls correction
Mode needs multi-user collaborative operation, and labor intensity is big.
Summary of the invention
The invention provides a kind of corrector for electric pole correction, this electric pole corrector simple in construction, be convenient for carrying.
A kind of corrector for electric pole correction that the present invention provides solves problem by techniques below main points: Yi Zhongyong
In the corrector of electric pole correction, including stay cord, one end of described stay cord is provided with rope sling, also includes earth anchor, tightener and insulation
Bar, described rope sling is used for sheathed electric pole, and the other end of stay cord is for being connected with earth anchor, and described tightener is connected with stay cord, stringing
Device for carrying out tensioning to stay cord, and described insulating bar is for by the upper end of rope sling jacking to electric pole.
Concrete, in above structure, can a ring be set in one end of stay cord, the other end of stay cord passes after walking around electric pole
Described ring, so, can obtain the rope sling being sheathed on electric pole；Stay cord centering also can be bent after electric pole one encloses by above rope sling,
By the free end of stay cord through the centering bending place of stay cord, obtain the rope sling being sheathed on electric pole.Above earth anchor is used for embedding ground
Table, so, by insulating bar by behind the upper end of rope sling jacking to electric pole, by the other end of stay cord, can make rope sling tighten up,
Complete rope sling fixing in electric pole upper end；Tightener may connect to the lower end of stay cord or is connected on stay cord, so, by stay cord
After lower end is connected with earth anchor, by operation tightener, the correction for electric pole provides tension.After electric pole corrects, can be by absolutely
Edge bar operation rope sling is allowed to relax, and drops to bottom electric pole after rope sling absent-mindedness, removable stay cord and the connection of electric pole.
In this structure, it is convenient to mount and dismount owing to forming each parts of this corrector, forms each parts phase of this corrector simultaneously
Compared with being currently used for the equipment that electric pole corrects, volume is less, weight is lighter, so that this corrector has spy easy to carry
Point；Meanwhile, in this corrector structure, it is only necessary to earth anchor is squeezed into earth's surface, the stress point of stay cord lower end can be obtained, therefore this correction
Device also has the feature strong to landform adaptive faculty；Simultaneously as can be by the upper end of rope sling jacking to electric pole and pine by insulating bar
The rope sling of slack banding, operator are no longer necessary to climb electric pole so that it is safer that operating personnel completes electric pole correction operation；Behaviour
Make human users's tightener enough correction tension, i.e. this structure to be provided also to have for electric pole can to alleviate operating personnel's labor
The advantage of fatigue resistance.
Further technical scheme is:
Owing to stay cord is during providing correction pulling force for electric pole, the top of earth anchor may offset to one end of electric pole, for
Avoiding stay cord to lose efficacy with the annexation of earth anchor, described earth anchor is that one end is provided with top rod-like structure, on described earth anchor also
Being provided with multiple through hole, and multiple through hole is along the length direction arrangement of earth anchor, described stay cord is connected with earth anchor by through hole.With
Upper earth anchor arranges the lower end as earth anchor, the top one end, in order to earth anchor is squeezed into earth's surface；Meanwhile, squeeze into a little according to earth anchor
Geology is different, and earth anchor may embed earth's surface different depth, for making stay cord can be connected on earth anchor near ground as far as possible
Position, so that stay cord is the shortest to the arm of force of the active force of earth anchor, therefore arranges multiple along earth anchor length side on earth anchor
Through hole to distribution.In this structure, earth anchor can be according to the specific landform of construction site, and the free end of earth anchor is to an inclination of electric pole
Tiltedly or towards the lopsidedness away from electric pole, as earth anchor inserted the occasion of crack of stone.
For ease of tightener assembling on this corrector, described tightener is series on stay cord, and stay cord passes through shackle
It is connected with earth anchor.In this structure, i.e. stay cord is divided into two parts, the two ends of a part to be used for the connection of tightener and earth anchor, another
Part is for the connection of tightener with electric pole.Owing to earth anchor needs often to come in and go out earth, through hole may be obstructed with soil, with
Upper shackle, as rigid element, can complete the connection of stay cord and earth anchor very easily.
As the form that implements of described through hole, described through hole includes that flat hole that cross section is rectangle and cross section are circle
The circular hole of shape, the length direction in described flat hole cross section is vertical with the length direction of earth anchor, described flat hole and the quantity of circular hole
It is multiple, and multiple flat hole and multiple circular hole are arranged each along the length direction of earth anchor.The circular hole of arrangement above has been used for
Becoming the connection of stay cord and earth anchor, the flat hole of arrangement above is used for using the instruments such as crowbar, is extracted by earth's surface by earth anchor.The most right
The restriction of flat hole, operating personnel installs after cushion block at the earth anchor place of setting, is placed on cushion block the inflection point of crowbar, crowbar flat
After flat hole is goed deep at flat tip, can easily earth anchor be prized by earth's surface.Above flat hole and circular hole are the setting of through hole,
Dredge blockage earth in flat hole or circular hole can be facilitated.Above to flat hole and circular hole quantity, flat hole and circular hole each
The restriction of arrangement form on earth anchor, it is intended to embed the difference of the earth's surface degree of depth according to earth anchor, will be closest to ground flat hole and
Circular hole is as corresponding handle hole.
As a kind of through-hole form being easy to processing, described flat hole is equal with the quantity of circular hole, and both quantity is equal
Being the positive integer more than or equal to 2 for N, described N, described through hole is all for being passed through, with a circular hole, the phase obtained by a flat hole mutually
Perforation.Above phase perforation is adding man-hour, can first drill out circular hole, then be processed the flat hole passed through mutually with this circular hole by milling cutter.
More than use the form of phase perforation, also can the spacing between circular hole and the spacing of circular hole, flat hole and flat hole be arranged more
Little.
As a kind of portable insulating bar way of realization, described insulating bar is the expansion link being made up of the more piece body of rod.
As another kind of portable insulating bar way of realization, described insulating bar is in series by multistage bar segment, and phase
Two bar segment even are threaded.
For ease of the location of stay cord Yu insulating bar, the top of described insulating bar is additionally provided with prong.Card on above prong
Mouth sets stay cord for card.
According to different stay cord line footpath, coupling has the prong of different fork width, so that for certain line footpath
Stay cord, is set to the width of the bayonet socket diameter slightly larger than line footpath, as arranging the rope sling that ring is formed on stay cord, by insulation
The ring on prong jacking stay cord on bar, it is achieved tightening up of rope sling, described prong and insulating bar are in the relation of removably connecting.Above
The relation of removably connecting can be threaded connection realization.
When relaxing rope sling, for ease of being introduced in the gap between rope sling and electric pole one end of prong, described prong is opened
In two ends of mouth end, at least it is provided with top on an end, and the top tip on described end is positioned at prong
Outside.
Further, in this corrector, earth anchor is many, also includes that interconnective connection restricts between earth anchor, this
Sample, many earth anchors can form ground anchor group, for strengthening the bonding strength of this corrector and earth's surface.
The method have the advantages that
In this structure, be convenient to mount and dismount owing to forming each parts of this corrector, form simultaneously each parts of this corrector compared to
Being currently used for the equipment of electric pole correction, volume is less, weight is lighter, so that this corrector has feature easy to carry；With
Time, in this corrector structure, it is only necessary to earth anchor is squeezed into earth's surface, the stress point of stay cord lower end can be obtained, therefore this corrector is also
There is the feature strong to landform adaptive faculty；Simultaneously as can be by the upper end of rope sling jacking to electric pole and absent-mindedness hoop by insulating bar
Tight rope sling, operator are no longer necessary to climb electric pole so that it is safer that operating personnel completes electric pole correction operation；Operator
Member's operation tightener can provide enough correction tension, i.e. this structure also to have for electric pole can to alleviate operating personnel and work by force
The advantage of degree.
Accompanying drawing explanation
Fig. 1 is a kind of one specific embodiment of corrector for electric pole correction of the present invention and the connection pass of electric pole
It it is schematic diagram；
Fig. 2 is the partial enlarged drawing in A portion shown in Fig. 1；
Fig. 3 is of the present invention a kind of in one specific embodiment of corrector of electric pole correction, the structural representation of prong
Figure.
Numbering in figure is followed successively by: 1, earth anchor, and 2, through hole, 3, stay cord, 4, shackle, 5, tightener, 6, insulating bar, 7, rope
Set, 8, electric pole, 9, prong.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but the structure of the present invention is not limited only to following
Embodiment.
Embodiment 1:
As shown in Figure 1 to Figure 3, a kind of corrector for electric pole correction, including stay cord 3, one end of described stay cord 3 is provided with rope
Set 7, also includes that earth anchor 1, tightener 5 and insulating bar 6, described rope sling 7 are used for and ground for sheathed electric pole 8, the other end of stay cord 3
Anchor 1 is connected, and described tightener 5 is connected with stay cord 3, and tightener 5 for carrying out tensioning to stay cord 3, and described insulating bar 6 will be for restricting
Overlap 7 jackings to the upper end of electric pole 8.
Concrete, in above structure, a ring can be set, after the other end of stay cord 3 walks around electric pole 8 in one end of stay cord 3
Through described ring, so, the rope sling 7 being sheathed on electric pole 8 can be obtained；Stay cord 3 centering also can be bent around electric pole by above rope sling 7
After 8 one circles, by the free end of stay cord 3 through the centering bending place of stay cord 3, obtain the rope sling 7 being sheathed on electric pole 8.With Shangdi
Anchor 1 is used for embedding earth's surface, so, by insulating bar 6 by behind the upper end of rope sling 7 jacking to electric pole 8, by another of stay cord 3
End, can make rope sling 7 tighten up, and completes rope sling 7 fixing in electric pole 8 upper end；Tightener 5 may connect to lower end or the string of stay cord 3
Being associated on stay cord 3, so, after being connected with earth anchor 1 lower end of stay cord 3, by operation tightener 5, the correction for electric pole 8 provides
Tension.After electric pole 8 corrects, rope sling 7 can be operated by insulating bar 6 and be allowed to relax, after rope sling 7 absent-mindedness, drop to electric pole 8 end
Portion, removable stay cord 3 and the connection of electric pole 8.
In this structure, it is convenient to mount and dismount owing to forming each parts of this corrector, forms each parts phase of this corrector simultaneously
Compared with being currently used for the equipment that electric pole 8 corrects, volume is less, weight is lighter, so that this corrector has spy easy to carry
Point；Meanwhile, in this corrector structure, it is only necessary to earth anchor 1 is squeezed into earth's surface, the stress point of stay cord 3 lower end can be obtained, therefore this school
Positive device also has the feature strong to landform adaptive faculty；Simultaneously as can be by the upper end of rope sling 7 jacking to electric pole 8 by insulating bar 6
With the rope sling 7 of absent-mindedness banding, operator are no longer necessary to climb electric pole 8 so that operating personnel completes electric pole 8 correction operation more
Safety；Operator operate tightener 5 can provide enough correction tension for electric pole 8, i.e. this structure also has and can alleviate
The advantage of operating personnel's labor intensity.
Embodiment 2:
As shown in Figure 1 to Figure 3, the present embodiment is further qualified on the basis of embodiment 1: owing to stay cord 3 is carrying for electric pole 8
During correction pulling force, the top of earth anchor 1 may offset to one end of electric pole 8, for avoiding the company of stay cord 3 and earth anchor 1
The relation that connects lost efficacy, and described earth anchor 1 is provided with top rod-like structure for one end, and described earth anchor 1 is additionally provided with multiple through hole 2,
And multiple through hole 2 arranges along the length direction of earth anchor 1, described stay cord 3 is connected with earth anchor 1 by through hole 2.Above earth anchor 1 sets
One end of top set point is as the lower end of earth anchor 1, in order to earth anchor 1 is squeezed into earth's surface；Meanwhile, geology a little is squeezed into according to earth anchor 1
Difference, earth anchor 1 may embed earth's surface different depth, for making stay cord 3 can be connected on earth anchor 1 position near ground as far as possible
Put, so that stay cord 3 is the shortest to the arm of force of the active force of earth anchor 1, therefore arrange multiple along earth anchor 1 length on earth anchor 1
The through hole 2 of directional spreding.In this structure, earth anchor 1 can be according to the specific landform of construction site, and the free end of earth anchor 1 is to electric pole 8
Lopsidedness or towards away from the lopsidedness of electric pole 8, as inserted the occasion of crack of stone by earth anchor 1.
For ease of the tightener 5 assembling on this corrector, described tightener 5 is series on stay cord 3, and stay cord 3 passes through
Shackle 4 is connected with earth anchor 1.In this structure, i.e. stay cord 3 is divided into two parts, and the two ends of a part are for tightener 5 and earth anchor 1
Connecting, another part is for the connection of tightener 5 with electric pole 8.Owing to earth anchor 1 needs often to come in and go out earth, may in through hole 2
Being obstructed with soil, above shackle 4, as rigid element, can complete the connection of stay cord 3 and earth anchor 1 very easily.
As the form that implements of described through hole 2, described through hole 2 include flat hole that cross section is rectangle and cross section in
Circular circular hole, the length direction in described flat hole cross section is vertical with the length direction of earth anchor 1, described flat hole and the number of circular hole
Amount is multiple, and multiple flat hole and multiple circular hole are arranged each along the length direction of earth anchor 1.The circular hole of arrangement above is used for
Completing the connection of stay cord 3 and earth anchor 1, the flat hole of arrangement above is used for using the instruments such as crowbar, is extracted by earth's surface by earth anchor 1.
Restriction to flat hole above, the inflection point of crowbar, after cushion block is installed at earth anchor 1 place of setting, is placed on cushion block by operating personnel,
After the flat tip of crowbar gos deep into flat hole, can easily earth anchor 1 be prized by earth's surface.Above flat hole and circular hole are logical
The setting in hole 2, can facilitate dredge blockage earth in flat hole or circular hole.Above to flat hole and circular hole quantity, flat hole
And the restriction of arrangement form on each comfortable earth anchor 1 of circular hole, it is intended to embed the difference of the earth's surface degree of depth according to earth anchor 1, will be closest to ground
The flat hole in face and circular hole are as corresponding handle hole.
As a kind of through hole 2 form being easy to processing, described flat hole is equal with the quantity of circular hole, and both quantity is equal
Being the positive integer more than or equal to 2 for N, described N, described through hole 2 all obtains for being passed through mutually with a circular hole by a flat hole
Phase perforation.More than can obtain N number of through hole 2, above phase perforation is adding man-hour, can first drill out circular hole, then be processed by milling cutter
Go out the flat hole passed through mutually with this circular hole.More than use phase perforation form, also can by circular hole with the spacing of circular hole, flat hole with flat
Spacing between flat hole arranges less.
As a kind of portable insulating bar 6 way of realization, described insulating bar 6 is flexible for be made up of the more piece body of rod
Bar.
As another kind of portable insulating bar 6 way of realization, described insulating bar 6 is in series by multistage bar segment, and
Two bar segment being connected are threaded.
Embodiment 3:
As shown in Figure 1 to Figure 3, this case is further qualified on the basis of the technical scheme that embodiment 1 provides by the present embodiment:
For ease of the location of stay cord 3 with insulating bar 6, the top of described insulating bar 6 is additionally provided with prong 9.Bayonet socket on above prong 9 is used
Stay cord 3 is set in card.
According to different stay cord 3 line footpath, coupling has the prong 9 of different fork width, so that for certain line footpath
Stay cord 3, be set to the width of the bayonet socket diameter slightly larger than line footpath, as arranging the rope sling 7 that ring is formed on stay cord 3, logical
Crossing the ring on the prong 9 jacking stay cord 3 on insulating bar 6, it is achieved tightening up of rope sling 7, described prong 9 and insulating bar 6 are in detachably
Annexation.More than the relation of removably connecting can be threaded connection realization.
When relaxing rope sling 7, for ease of one end of prong 9 being introduced in the gap between rope sling 7 and electric pole 8, described fork
In two ends of mouth 9 openings, at least it is provided with top on an end, and the top tip on described end is positioned at fork
The outside of mouth 9.
Further, in this corrector, earth anchor 1 is many, also includes that interconnective connection restricts between earth anchor 1,
So, many earth anchors 1 can form ground anchor group, for strengthening the bonding strength of this corrector and earth's surface.
Above content is to combine the further description that the present invention is made by concrete preferred implementation, it is impossible to assert this
The detailed description of the invention of invention is confined to these explanations.For general technical staff of the technical field of the invention,
Other embodiments drawn under without departing from technical scheme, should be included in protection scope of the present invention.
Claims (10)
1., for a corrector for electric pole correction, including stay cord (3), one end of described stay cord (3) is provided with rope sling (7), its
Being characterised by, also include earth anchor (1), tightener (5) and insulating bar (6), described rope sling (7) is used for sheathed electric pole (8), stay cord
(3) the other end is for being connected with earth anchor (1), and described tightener (5) is connected with stay cord (3), and tightener (5) is for stay cord
(3) carrying out tensioning, described insulating bar (6) is for by the upper end of rope sling (7) jacking to electric pole (8).
A kind of corrector for electric pole correction the most according to claim 1, it is characterised in that described earth anchor (1) is one
End is provided with top rod-like structure, described earth anchor (1) is additionally provided with multiple through hole (2), and multiple through hole (2) is along earth anchor
(1) length direction arrangement, described stay cord (3) is connected with earth anchor (1) by through hole (2).
A kind of corrector for electric pole correction the most according to claim 2, it is characterised in that described tightener (5) is gone here and there
It is coupled on stay cord (3), and stay cord (3) is connected with earth anchor (1) by shackle (4).
A kind of corrector for electric pole correction the most according to claim 2, it is characterised in that described through hole (2) includes
The rounded circular hole of flat hole that cross section is rectangle and cross section, the length of the length direction in described flat hole cross section and earth anchor (1)
Degree direction is vertical, and the quantity of described flat hole and circular hole is multiple, and multiple flat hole and multiple circular hole are each along earth anchor (1)
Length direction arrangement.
A kind of corrector for electric pole correction the most according to claim 4, it is characterised in that described flat hole and circular hole
Quantity equal, and both quantity to be N, described N be the positive integer more than or equal to 2, described through hole (2) is all for by one
Flat hole passes through, with a circular hole, the phase perforation obtained mutually.
A kind of corrector for electric pole correction the most according to claim 1, it is characterised in that described insulating bar (6) is
The expansion link being made up of the more piece body of rod.
The most according to claim 1 a kind of for electric pole correction corrector, it is characterised in that described insulating bar (6) by
Multistage bar segment is in series, and two bar segment being connected are threaded.
A kind of corrector for electric pole correction the most according to claim 1, it is characterised in that described insulating bar (6)
Top is additionally provided with prong (9).
A kind of corrector for electric pole correction the most according to claim 8, it is characterised in that described prong (9) is with exhausted
Edge bar (6) is in the relation of removably connecting.
A kind of corrector for electric pole correction the most according to claim 1, it is characterised in that described prong (9) opening
In two ends of end, at least it is provided with top on an end, and the top tip on described end is positioned at prong (9)
Outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610861949.XA CN106285178A (en) | 2016-09-29 | 2016-09-29 | A kind of corrector for electric pole correction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610861949.XA CN106285178A (en) | 2016-09-29 | 2016-09-29 | A kind of corrector for electric pole correction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106285178A true CN106285178A (en) | 2017-01-04 |
Family
ID=57715608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610861949.XA Pending CN106285178A (en) | 2016-09-29 | 2016-09-29 | A kind of corrector for electric pole correction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106285178A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756438A (en) * | 2018-06-04 | 2018-11-06 | 广东电网有限责任公司 | One kind being used for oblique electric pole fast aligning tool |
| CN114006311A (en) * | 2021-10-29 | 2022-02-01 | 广东电网有限责任公司 | Wire drawing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4620693A (en) * | 1983-07-19 | 1986-11-04 | Electricite De France | Pole lifting apparatus |
| CN203105232U (en) * | 2012-12-14 | 2013-08-07 | 金华电业局 | Rope stringing device for timber cutting |
| CN203878573U (en) * | 2014-05-22 | 2014-10-15 | 袁丁 | Anchor bolt easy to demount |
| CN204609436U (en) * | 2015-05-07 | 2015-09-02 | 国家电网公司 | A kind of pole centralizing device |
| CN206174597U (en) * | 2016-09-29 | 2017-05-17 | 国网四川省电力公司南充供电公司 | Portable pole corrector |
-
2016
- 2016-09-29 CN CN201610861949.XA patent/CN106285178A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4620693A (en) * | 1983-07-19 | 1986-11-04 | Electricite De France | Pole lifting apparatus |
| CN203105232U (en) * | 2012-12-14 | 2013-08-07 | 金华电业局 | Rope stringing device for timber cutting |
| CN203878573U (en) * | 2014-05-22 | 2014-10-15 | 袁丁 | Anchor bolt easy to demount |
| CN204609436U (en) * | 2015-05-07 | 2015-09-02 | 国家电网公司 | A kind of pole centralizing device |
| CN206174597U (en) * | 2016-09-29 | 2017-05-17 | 国网四川省电力公司南充供电公司 | Portable pole corrector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756438A (en) * | 2018-06-04 | 2018-11-06 | 广东电网有限责任公司 | One kind being used for oblique electric pole fast aligning tool |
| CN114006311A (en) * | 2021-10-29 | 2022-02-01 | 广东电网有限责任公司 | Wire drawing device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |
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| RJ01 | Rejection of invention patent application after publication |