CN101154797A - Auxiliary means for changing porcelain insulator of telegraph pole - Google Patents

Auxiliary means for changing porcelain insulator of telegraph pole Download PDF

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Publication number
CN101154797A
CN101154797A CNA2007100928602A CN200710092860A CN101154797A CN 101154797 A CN101154797 A CN 101154797A CN A2007100928602 A CNA2007100928602 A CN A2007100928602A CN 200710092860 A CN200710092860 A CN 200710092860A CN 101154797 A CN101154797 A CN 101154797A
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CN
China
Prior art keywords
base
porcelain vase
top line
hinged
sleeve
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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.)
Granted
Application number
CNA2007100928602A
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Chinese (zh)
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CN101154797B (en
Inventor
余永清
李杨
周凯
游步新
何应强
蒋厚毅
吴彬
曾平
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Jiangbei Power Supply Bureau Of Chongqing Electric Power Corp
Original Assignee
Jiangbei Power Supply Bureau Of Chongqing Electric Power Corp
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Application filed by Jiangbei Power Supply Bureau Of Chongqing Electric Power Corp filed Critical Jiangbei Power Supply Bureau Of Chongqing Electric Power Corp
Priority to CN2007100928602A priority Critical patent/CN101154797B/en
Publication of CN101154797A publication Critical patent/CN101154797A/en
Application granted granted Critical
Publication of CN101154797B publication Critical patent/CN101154797B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to an auxiliary tool used for replacing porcelain insulators of a wire pole, wherein, an elevating mechanism is arranged on a pedestal; a mean line mechanism capable of removing wires on the porcelain insulators and supporting the removed wires is connected with the upper end of the elevating mechanism; the pedestal is located on a cross arm of the wire pole; the elevating mechanism is operated and drives the mean line mechanism to contact the wires which are then removed from the porcelain insulators, and then the porcelain insulators can be replaced. The invention has the advantages of simple operation, small labor intensity, and improvement of safety and convenience of operation during the process of replacing the porcelain insulators.

Description

Be used for the aid that the electric pole porcelain vase is changed
Technical field
The present invention relates to the distribution instrument, relate in particular to the aid that the electric pole porcelain vase is changed.
Background technology
When conducting transmission line maintenance of power circuit distribution class and accident treatment, often run into the replacing porcelain vase to be the work of insulator, present method of operation is: by the stringing device of special use that the electric wire of porcelain vase to be replaced both sides is inside earlier, level is drawn in opposite directions, make the electric wire that is bundled on the porcelain vase be relaxed state, and then porcelain vase is changed.Used stringing device generally comprises wire grip and electric wire folder, and wire grip is made of ratchet, the ratchet assemblies of a band handle, and wire grip is connected with the electric wire folder by hawser.When using above-mentioned stringing device to change porcelain vase, exist following deficiency:
1, when changing angle pole or top bar porcelain vase, at least use two stringing devices, the workman needs at first two wire grips to be separately fixed on the cross-arm, release the electric wire folder to the porcelain vase both sides respectively again, control crank draws the electric wire folder in behind the electric wire to be clamped, carry out porcelain vase at last again and change, operating process is very complicated and loaded down with trivial details;
2, if cross-arm is long, the operator releases relatively difficulty of electric wire folder, and when stringing, center of gravity is far away from electric pole, and is dangerous big;
3, the used time of angle pole of replacing or top bar porcelain vase approximately needs 50 minutes, and the one side activity duration is long, and labour intensity is big; Also make the power-off time of circuit oversize on the other hand.
Summary of the invention
The problem to be solved in the present invention provides a kind of easy to operate, laborsaving, the aid that is used for the replacing of electric pole porcelain vase that operating efficiency is high.
For solving the problems of the technologies described above, provided by the inventionly be used for the aid that the electric pole porcelain vase is changed, it is equipped with elevating mechanism on base, and the upper end of this elevating mechanism has the top line mechanism that electric wire on the porcelain vase is removed and the electric wire of removing is supported.
When on the top of circuit bar and angle pole, using, the present invention is hung on the electric pole cross-arm, be installed in electric pole cross-arm operating position by base, adjust the desired position, electric wire is aimed at by top line mechanism, elevating mechanism is risen, the electric wire on the porcelain vase that will be needed to change by top line mechanism is removed, and the electric wire of removing supported, after electric wire leaves porcelain vase, just can carry out porcelain vase and change operation.Both improve the fail safe and the convenience of operation, improved operating efficiency again.
A kind of specific embodiment as elevating mechanism, above-mentioned elevating mechanism comprises bottom base, top base and four bracing frames, become one group of support arm after hinged between per two bracing frames, one end and the top base of every group of support arm are hinged, the other end and bottom base are hinged, bottom base is installed on the base, is provided with adjusting screw(rod) between two groups of support arms.
In this scheme, the effect of adjusting screw(rod) is to draw two groups of support arms over to one's side on the one hand, top line mechanism is risen and removes electric wire on the porcelain vase; Be on the other hand porcelain vase change finish after, separately two groups of support arms descend top line mechanism, electric wire are placed on the porcelain vase after the replacing again.
In described two groups of support arms, wherein the pivot pin that passes through threaded through hole up and down between the bracing frame of one group of support arm is hinged, the pivot pin that passes through the band via hole up and down between the bracing frame of another group support arm is hinged, and the thread segment of adjusting screw(rod) passes via hole versatilely and tapped through hole is threaded.Adjusting screw(rod) and tapped through hole are threaded engagement, and the adjusting screw(rod) that turns clockwise is just drawn close the pivot pin of threaded through hole to the pivot pin of band via hole, promptly draw two groups of support arms over to one's side and rising top line mechanism; Be rotated counterclockwise adjusting screw(rod), just with the pivot pin of the threaded through hole pivot pin away from the band via hole, promptly two groups of support arms separately reduce top line mechanism.
The bracing frame of the described two groups of support arms pivot pin by threaded through hole respectively is hinged, and the rotation direction of screw thread is opposite on two pivot pins, and the tapped through hole on adjusting screw(rod) and two pivot pins is threaded.When the rotation adjusting screw(rod); two pivot pins all move on adjusting screw(rod), and move at the middle part that drives support arm simultaneously, owing to the thread rotary orientation on two pivot pins is opposite; the rotation of adjusting screw(rod) just makes two pivot pins do relatively or move toward one another, thereby two groups of support arms are drawn close or separately.
As first kind of embodiment of top line mechanism, above-mentioned top line mechanism comprises U-shaped installing rack and top line pulley, and installing rack is connected with top base, and the top line pulley is connected the installing rack upper end.The porcelain vase that this embodiment is mainly used on the bar of top is changed, and adjusts the height of top line pulley by elevating mechanism, withstands the electric wire on the porcelain vase that needs replacing with the top line pulley, electric wire is removed the back and electric wire supported, change porcelain vase again, easy to operate, reduced labour intensity.
Second kind of embodiment as top line mechanism, above-mentioned top line mechanism comprises the top line fork of sleeve, screw rod and U-shaped, and sleeve is horizontally fixed on the top base, and screw flight is connected in the sleeve, the top line fork is arranged on an end of screw rod, and the other end of screw rod is provided with swivel joint.The porcelain vase that this embodiment is mainly used on the angle pole is changed, adjust height by elevating mechanism after, at rotary screw, the electric wire level on the angle pole place porcelain vase is released and supporting electric wire by the top line fork, change porcelain vase again.
As the third embodiment of top line mechanism, above-mentioned top line mechanism comprises sleeve, screw rod, U-shaped installing rack and top line pulley; Sleeve is horizontally fixed on the top base, and screw flight is connected in the sleeve, and an end of screw rod is provided with swivel joint, and the other end installation sleeve that has been threaded, installation sleeve are provided with the top line fork or/and the U-shaped backguy is colluded; Installing rack is connected on the sleeve, and the top line pulley is connected the installing rack upper end.
This embodiment combines the function of first kind of embodiment and second kind of embodiment, operating personnel are not knowing it is to change porcelain vase on the bar of top when line maintenance and accident treatment, still on the angle pole under the porcelain vase situation, operating personnel just can carry the instrument that this embodiment constitutes, if the porcelain vase on the bar of top need be changed, adjust the height of top line pulley by elevating mechanism, withstand the electric wire on the porcelain vase of need changing with the top line pulley, electric wire is removed the back and to the electric wire support, changed porcelain vase again; If the porcelain vase on the angle pole need be changed, adjust height by elevating mechanism after, at rotary screw, the electric wire level on the angle pole place porcelain vase is released and supporting electric wire by the top line fork, change porcelain vase again.Top bar and angle pole all damage when needing replacing on same electric pole if run into like this, by the first porcelain vase of changing bar place, top of instrument that this embodiment constitutes, change the porcelain vase at angle pole place again, it is easy to operate, reduce labour intensity, changed the trouble of instrument when having avoided work high above the ground.
The invention has the beneficial effects as follows: simple to operate, labour intensity is little, in the replacing operation process of porcelain vase, has improved the fail safe and the convenience of operation.
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment of top line mechanism among the present invention;
Fig. 2 is the structural representation of second kind of embodiment of top line mechanism among the present invention;
Fig. 3 is the structural representation of the third embodiment of top line mechanism among the present invention;
Fig. 4 is a kind of connection diagram between adjusting screw(rod) among the present invention and two pivot pins;
Fig. 5 is the another kind of connection diagram between adjusting screw(rod) among the present invention and two pivot pins;
Fig. 6 is for being installed in the connection diagram of the gear on the bottom base among the present invention;
Fig. 7 is a user mode reference diagram of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
As shown in Figure 1, 2, 3, the present invention contains base 2, on base 2 elevating mechanism is installed, and the upper end of this elevating mechanism is connected with the top line mechanism that electric wire on the porcelain vase can be removed and the electric wire of removing is supported.
As shown in Figure 1, 2, 3, described elevating mechanism comprises bottom base 8, top base 9 and bracing frame 3, bracing frame 4, bracing frame 5, bracing frame 6, become one group of support arm after hinged between bracing frame 3 and the bracing frame 5, become another group support arm between bracing frame 4 and the bracing frame 6 after hinged, one end and the top base 9 of every group of support arm are hinged, the other end and bottom base 8 are hinged, and bottom base 8 is installed on the base, are provided with adjusting screw(rod) 7 between two groups of support arms.
As shown in Figure 4, in described two groups of support arms, wherein the pivot pin 10 by threaded through hole 12 is hinged between the bracing frame up and down 4,6 of one group of support arm, hinged by the pivot pin 11 of band via hole 13 between the bracing frame up and down 3,5 of another group support arm, the thread segment of adjusting screw(rod) 7 passes via hole 13 versatilely and is threaded with tapped through hole 12.
Adjusting screw(rod) 7 is threaded engagement with tapped through hole 12, and the adjusting screw(rod) 7 that turns clockwise is just drawn close the pivot pin 10 of threaded through hole to the pivot pin 11 of band via hole, promptly draw two groups of support arms over to one's side, thus rising top line mechanism; Be rotated counterclockwise adjusting screw(rod) 7, just with the pivot pin 10 of threaded through hole pivot pin 11 away from the band via hole, i.e. two groups of support arms separately, thus reduce top line mechanism.
As shown in Figure 5, all hinged by the pivot pin 10 of threaded through hole between two bracing frames up and down of described two groups of support arms, the rotation direction of screw thread is opposite on two pivot pins 10, and the tapped through hole on adjusting screw(rod) 7 and two pivot pins 10 is threaded.
When rotation adjusting screw(rod) 7; two pivot pins 10 all move on adjusting screw(rod) 7, and move at the middle part that drives support arm 1 simultaneously, owing to the thread rotary orientation on two pivot pins is opposite; the rotation of adjusting screw(rod) 7 just makes two pivot pins do relatively or move toward one another, thereby two groups of support arms are drawn close or separately.Change the difference of operation at porcelain vase on top bar or the angle pole, can there be following three kinds of execution modes in above-mentioned top line mechanism;
Embodiment 1, and as shown in Figure 1, top line mechanism comprises U-shaped installing rack 20 and top line pulley 14, and installing rack 20 is connected with top base 9, and the top line pulley is installed on the installing rack 20.When the porcelain vase on the bar of top 27 damaged, as shown in Figure 7, base 2 was positioned on the electric pole cross-arm 29.Taper knob is connected on the joint of adjusting screw(rod) 7 ends, turning handle makes adjusting screw(rod) 7 rotations, distance between two pivot pins 10,13 is shortened, the electric wire on the porcelain vase 27 is removed in 14 risings of top line pulley, after removing electric wire 28, the top line pulley is supporting electric wire 28 again, electric wire 28 is left porcelain vase 27 after, just can change porcelain vase 27.By aid electric wire 28 is removed from porcelain vase 27, reduced labour intensity.After replacing was finished, rotary handle descended top line mechanism again, and electric wire 28 is moved on on the porcelain vase.Can be movably connected between bottom base 8 and the base 2, on bottom base 8, bearing is set, be connected with base 2, so just can make elevating mechanism do the rotation of 360 degree, and make things convenient for top line by threaded pin, nut.
Embodiment 2, and as shown in Figure 2, top line mechanism comprises the top line fork 19 of sleeve 15, screw rod 16 and U-shaped, sleeve 15 is horizontally fixed on the top base 9, screw rod 16 is threaded in the sleeve 15, and top line fork 19 is arranged on an end of screw rod 16, and the other end of screw rod 16 is provided with swivel joint 17.This structure is mainly used in the electric wire of removing on the porcelain vase of the angle pole outside, by adjusting screw(rod) top line is stuck to be raised to after electric wire contact, and rotary screw makes the screw rod advance side to the release electric wire again.
Embodiment 3, and as shown in Figure 3, top line mechanism comprises sleeve 15, screw rod 16, U-shaped installing rack 20 and top line pulley 14; Sleeve 15 is horizontally fixed on the top base 9, and screw rod 16 is threaded in the sleeve 15, and an end of screw rod 16 is provided with swivel joint 17, and the other end installation sleeve 18 that has been threaded, installation sleeve 18 are provided with top line fork 19; Installing rack 20 is connected on the sleeve 15, and top line pulley 14 is installed on the installing rack 20.Also can the U-shaped backguy be set simultaneously on installation sleeve 18 and collude 21.This structure both can be used to remove the electric wire on the bar porcelain vase of top, can be used for removing the electric wire on the angle pole porcelain vase again.The operation principle that is used to remove electric wire on the bar porcelain vase of top is identical with embodiment 1, and the operation principle that is used to remove electric wire on the porcelain vase of the angle pole outside is identical with embodiment 2, and 21 electric wires that are used for removing on the porcelain vase of angle pole inboard are colluded in the U-shaped backguy.
As shown in Figure 1, 2, 3, attached protector piece 24 is installed on base 2, offers installing port 28 on base 2, a sidewall of base 2 is provided with V-arrangement clip 25.The effect of attached protector piece 24 is: when mounting seat 2, by tightening nut the both sides of attached protector piece 24 are fixed on the cross-arm 29, attached protector piece 24 is clamped on the cross-arm 29 with base 2, play fastening purpose.V-arrangement clip 25 plays spacing effect, when being installed in base 2 on the bar of top, contacts with the top bar by the position that forms between the V-arrangement clip 25, fastens on the bar of the top of electric pole by the V-arrangement clip 25 that iron wire passes on the base.
Shown in Fig. 3,6, the lower support frame 3,4 of two groups of support arms is respectively by pin 22,22 ' hinged with bottom base, pin 22,22 ' two ends be respectively arranged with pitch wheel 23; The upper support frame 5,6 of two groups of support arms is respectively by bearing pin 1,1 ' hinged with top base, bearing pin 1,1 ' two ends be respectively arranged with pitch wheel.The effect of gear is when supporting electric wire, plays the spacing purpose of chucking, prevent because weight is excessive, and the defective tightness that is threaded between adjusting screw(rod) 7 and the pivot pin, and it is loosening that adjusting screw(rod) 7 is taken place, and causes adjusting screw(rod) 7 stripped threads.
As shown in Figure 1, 2, 3, therein in one group of support arm the hinged end between the bracing frame be hinged with and support 26.When the porcelain vase that is used for angle pole was changed, electric wire gravity in the process of releasing was excessive, can make entire mechanism take place to move partially or retreat, and top line fork top line is not tight, and the lower end of described support is against the effect that base plays load-bearing.
Elevating mechanism among the present invention can also be a jack structure, embodiment 1, the embodiment 2 of the above-mentioned top line of installation mechanism or any one structure among the embodiment 3 on the piston rod of this jack.For weight reduction, the lower support frame 3,4 among the present invention is or/and can be provided with through hole on the lower support frame 5,6.

Claims (10)

1. one kind is used for the aid that the electric pole porcelain vase is changed, it is characterized in that: it comprises base (2), on base (2) elevating mechanism is installed, the upper end of this elevating mechanism is connected with the top line mechanism that electric wire on the porcelain vase can be removed and the electric wire of removing is supported.
2. the aid that is used for the replacing of electric pole porcelain vase as claimed in claim 1, it is characterized in that: described elevating mechanism comprises bottom base (8), top base (9) and four bracing frames (3,4,5,6), become one group of support arm after hinged between per two bracing frames, one end of every group of support arm and top base (9) are hinged, the other end and bottom base (8) are hinged, bottom base (8) is installed on the base, is provided with adjusting screw(rod) (7) between two groups of support arms.
3. the aid that is used for the replacing of electric pole porcelain vase as claimed in claim 2, it is characterized in that: in described two groups of support arms, wherein the pivot pin (10) by threaded through hole (12) is hinged between the bracing frame up and down of one group of support arm (4,6), hinged by the pivot pin (11) of band via hole (13) between the bracing frame up and down (3,5) of another group support arm, the thread segment of adjusting screw(rod) (7) passes via hole (13) versatilely and is threaded with tapped through hole (12).
4. the aid that is used for the replacing of electric pole porcelain vase as claimed in claim 2, it is characterized in that: all hinged between two bracing frames up and down of described two groups of support arms by the pivot pin (10) of threaded through hole, the rotation direction that two pivot pins (10) are gone up screw thread is opposite, and the tapped through hole on adjusting screw(rod) (7) and two pivot pins (10) is threaded.
5. as claim 3 or the 4 described aids that are used for the replacing of electric pole porcelain vase, it is characterized in that: described top line mechanism comprises U-shaped installing rack (20) and top line pulley (14), installing rack (20) is connected with top base (9), and top line pulley (14) is connected installing rack (20) upper end.
6. as claim 3 or the 4 described aids that are used for the replacing of electric pole porcelain vase, it is characterized in that: described top line mechanism comprises the top line fork (19) of sleeve (15), screw rod (16) and U-shaped, sleeve (15) is horizontally fixed on the top base (9), screw rod (16) is threaded in the sleeve (15), top line fork (19) is arranged on an end of screw rod (16), and the other end of screw rod (16) is provided with swivel joint (17).
7. describedly be used for the aids that the electric pole porcelain vase is changed as claim 3 or 4, it is characterized in that: described top line mechanism comprises sleeve (15), screw rod (16), U-shaped installing rack (20) and top line pulley (14); Sleeve (15) is horizontally fixed on the top base (9), screw rod (16) is threaded in the sleeve (15), one end of screw rod (16) is provided with swivel joint (17), and the other end installation sleeve (18) that has been threaded, installation sleeve (18) are provided with top line fork (19) or/and (21) are colluded in the U-shaped backguy; Installing rack (20) is connected on the sleeve (15), and top line pulley (14) is connected installing rack (20) upper end.
8. the aid that is used for the replacing of electric pole porcelain vase as claimed in claim 1, it is characterized in that: attached protector piece (24) is installed on base (2), offer installing port (28) on base (2), a sidewall of base (2) is provided with V-arrangement clip (25).
9. the aid that is used for the replacing of electric pole porcelain vase as claimed in claim 2, it is characterized in that: the lower support frame of described two groups of support arms (3,4) is hinged by pin (22,22 ') and bottom base respectively, and is respectively arranged with pitch wheel (23,23 ') at the two ends of these two pins (22,22 '); The upper support frame of two groups of support arms (5,6) is hinged by bearing pin (1,1 ') and top base respectively, and is respectively arranged with pitch wheel at the two ends of these two bearing pins (1,1 ').
10. as claimed in claim 2ly be used for the aid that the electric pole porcelain vase is changed, it is characterized in that: described wherein one group of support arm up and down the hinged end between two bracing frames be hinged with support (26).
CN2007100928602A 2007-10-19 2007-10-19 Auxiliary means for changing porcelain insulator of telegraph pole Expired - Fee Related CN101154797B (en)

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Application Number Priority Date Filing Date Title
CN2007100928602A CN101154797B (en) 2007-10-19 2007-10-19 Auxiliary means for changing porcelain insulator of telegraph pole

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Application Number Priority Date Filing Date Title
CN2007100928602A CN101154797B (en) 2007-10-19 2007-10-19 Auxiliary means for changing porcelain insulator of telegraph pole

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CN101154797A true CN101154797A (en) 2008-04-02
CN101154797B CN101154797B (en) 2010-12-08

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Cited By (13)

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CN102518875A (en) * 2011-12-01 2012-06-27 河南省电力公司洛阳供电公司 Wire installation frame for domes, arcs or sloops
CN104124643A (en) * 2014-07-03 2014-10-29 国家电网公司 Auxiliary device for changing angle pole Porcelain bottle
CN104617515A (en) * 2014-11-04 2015-05-13 国家电网公司 10KV distribution line pole top maintenance supporting rod
CN103036177B (en) * 2012-12-11 2015-08-19 安康供电局 A kind of insulating needle bottle replacing options of hoisting apparatus
CN105174117A (en) * 2015-10-26 2015-12-23 许继集团有限公司 Bus supporting device and supporting equipment thereof
CN106654985A (en) * 2016-11-16 2017-05-10 国网浙江桐乡市供电公司 Linear pole lifting pulley
CN110189888A (en) * 2019-05-23 2019-08-30 洪文敬 A kind of tractive transformer
CN110768158A (en) * 2019-10-21 2020-02-07 贵州电网有限责任公司 Pin insulator replacement and installation auxiliary device
CN110823681A (en) * 2019-12-23 2020-02-21 义乌工商职业技术学院 Rock wool board tensile strength detection mechanism
CN111799696A (en) * 2020-06-29 2020-10-20 国家电网有限公司 Tool for replacing ultra-high voltage transmission line clamp
CN112636240A (en) * 2020-11-24 2021-04-09 广西电网有限责任公司玉林供电局 Replacement device for supporting insulator
CN112938808A (en) * 2021-01-26 2021-06-11 广东电网有限责任公司 Electric pole wire lifting device
CN117886206A (en) * 2024-03-18 2024-04-16 国网山东省电力公司东明县供电公司 Auxiliary replacing device for column type insulator

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518875A (en) * 2011-12-01 2012-06-27 河南省电力公司洛阳供电公司 Wire installation frame for domes, arcs or sloops
CN102518875B (en) * 2011-12-01 2015-09-16 河南省电力公司洛阳供电公司 The wire installation frame of a kind of dome or arc or slope use
CN103036177B (en) * 2012-12-11 2015-08-19 安康供电局 A kind of insulating needle bottle replacing options of hoisting apparatus
CN104124643A (en) * 2014-07-03 2014-10-29 国家电网公司 Auxiliary device for changing angle pole Porcelain bottle
CN104124643B (en) * 2014-07-03 2017-01-04 国家电网公司 Angle pole china bottle replacement auxiliary device
CN104617515A (en) * 2014-11-04 2015-05-13 国家电网公司 10KV distribution line pole top maintenance supporting rod
CN104617515B (en) * 2014-11-04 2017-02-15 国家电网公司 10KV distribution line pole top maintenance supporting rod
CN105174117A (en) * 2015-10-26 2015-12-23 许继集团有限公司 Bus supporting device and supporting equipment thereof
CN106654985A (en) * 2016-11-16 2017-05-10 国网浙江桐乡市供电公司 Linear pole lifting pulley
CN106654985B (en) * 2016-11-16 2018-06-08 国网浙江桐乡市供电公司 A kind of straight line pole fall block
CN110189888A (en) * 2019-05-23 2019-08-30 洪文敬 A kind of tractive transformer
CN110768158A (en) * 2019-10-21 2020-02-07 贵州电网有限责任公司 Pin insulator replacement and installation auxiliary device
CN110823681A (en) * 2019-12-23 2020-02-21 义乌工商职业技术学院 Rock wool board tensile strength detection mechanism
CN111799696A (en) * 2020-06-29 2020-10-20 国家电网有限公司 Tool for replacing ultra-high voltage transmission line clamp
CN111799696B (en) * 2020-06-29 2021-07-06 国家电网有限公司 Tool for replacing ultra-high voltage transmission line clamp
CN112636240A (en) * 2020-11-24 2021-04-09 广西电网有限责任公司玉林供电局 Replacement device for supporting insulator
CN112938808A (en) * 2021-01-26 2021-06-11 广东电网有限责任公司 Electric pole wire lifting device
CN117886206A (en) * 2024-03-18 2024-04-16 国网山东省电力公司东明县供电公司 Auxiliary replacing device for column type insulator

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